sample_id
int64 0
99
| prompt
stringlengths 4.63k
6.63k
| bug_type
stringclasses 4
values | bug_location
stringlengths 5
5
| explanation
stringlengths 29
37
| metadata_bug_type
stringclasses 4
values | n_operations
int64 76
114
| full_label
stringlengths 101
107
| full_metadata
stringlengths 39
43
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|---|---|---|---|---|---|---|---|---|
42
|
Analyze this banking transaction log for bugs.
Each operation shows the complete state change.
INITIAL STATE:
{
"account_A": 4000,
"account_B": 4200,
"total": 8200
}
RULES:
1. Total money must remain constant (conservation)
2. No account can go negative
3. All calculations must be mathematically correct
TRANSACTION LOG:
[TX001] Transfer $23: B=4200 → 4177, A=4000 → 4023
[TX002] Transfer $278: B=4177 → 3899, A=4023 → 4301
[TX003] Transfer $309: B=3899 → 3590, A=4301 → 4610
[TX004] Transfer $287: A=4610 → 4323, B=3590 → 3877
[TX005] Transfer $21: B=3877 → 3856, A=4323 → 4344
[TX006] Transfer $456: B=3856 → 3400, A=4344 → 4800
[TX007] Transfer $212: A=4800 → 4588, B=3400 → 3612
[TX008] Transfer $677: B=3612 → 2935, A=4588 → 5265
[TX009] Transfer $678: B=2935 → 2257, A=5265 → 5943
[TX010] Transfer $556: B=2257 → 1701, A=5943 → 6499
[TX011] Transfer $933: B=1701 → 768, A=6499 → 7432
[TX012] Transfer $607: B=768 → 161, A=7432 → 8039
[TX013] Transfer $351: A=8039 → 7688, B=161 → 512
[TX014] Transfer $402: B=512 → 110, A=7688 → 8090
[TX015] Transfer $568: A=8090 → 7522, B=110 → 678
[TX016] Transfer $549: B=678 → 129, A=7522 → 8071
[TX017] Transfer $20: B=129 → 109, A=8071 → 8091
[TX018] Transfer $8: B=109 → 101, A=8091 → 8099
[TX019] Balance check: B=101
[TX020] Transfer $289: A=8099 → 7810, B=101 → 390
[TX021] Transfer $129: B=390 → 261, A=7810 → 7939
[TX022] Transfer $148: B=261 → 113, A=7939 → 8087
[TX023] Transfer $11: B=113 → 102, A=8087 → 8098
[TX024] Transfer $2: B=102 → 100, A=8098 → 8100
[TX025] Balance check: B=100
[TX026] Transfer $584: A=8100 → 7516, B=100 → 684
[TX027] Transfer $185: B=684 → 499, A=7516 → 7701
[TX028] Transfer $10: B=499 → 489, A=7701 → 7711
[TX029] Transfer $240: B=489 → 249, A=7711 → 7951
[TX030] Transfer $493: A=7951 → 7458, B=249 → 742
[TX031] Transfer $61: A=7458 → 7397, B=742 → 803
[TX032] Transfer $920: A=7397 → 6477, B=803 → 1723
[TX033] Transfer $453: B=1723 → 1270, A=6477 → 6930
[TX034] Transfer $786: A=6930 → 6144, B=1270 → 2056
[TX035] Transfer $891: B=2056 → 1165, A=6144 → 7035
[TX036] Transfer $234: B=1165 → 931, A=7035 → 7269
[TX037] Transfer $894: A=7269 → 6375, B=931 → 1825
[TX038] Transfer $119: A=6375 → 6256, B=1825 → 1944
[TX039] Transfer $702: A=6256 → 5554, B=1944 → 2646
[TX040] Transfer $44: B=2646 → 2602, A=5554 → 5598
[TX041] Transfer $976: A=5598 → 4622, B=2602 → 3578
[TX042] Transfer $18: B=3578 → 3560, A=4622 → 4640
[TX043] Transfer $616: B=3560 → 2944, A=4640 → 5256
[TX044] Transfer $113: A=5256 → 5143, B=2944 → 3057
[TX045] Transfer $117: A=5143 → 5026, B=3057 → 3174
[TX046] Transfer $210: A=5026 → 4816, B=3174 → 3384
[TX047] Transfer $851: B=3384 → 2533, A=4816 → 5667
[TX048] Transfer $659: B=2533 → 1874, A=5667 → 6326
[TX049] Transfer $148: B=1874 → 1726, A=6326 → 6474
[TX050] Transfer $623: A=6474 → 5851, B=1726 → 2349
[TX051] Transfer $1000: B=2349 → 1349, A=5851 → 6851
[TX052] Transfer $483: B=1349 → 866, A=6851 → 7334
[TX053] Transfer $166: B=866 → 700, A=7334 → 7500
[TX054] Transfer $299: B=700 → 401, A=7500 → 7799
[TX055] Transfer $110: A=7799 → 7689, B=401 → 511
[TX056] Transfer $525: A=7689 → 7164, B=511 → 1036
[TX057] Transfer $389: B=1036 → 647, A=7164 → 7553
[TX058] Transfer $392: A=7553 → 7161, B=647 → 1039
[TX059] Transfer $983: A=7161 → 6178, B=1039 → 2022
[TX060] Transfer $553: A=6178 → 5625, B=2022 → 2575
[TX061] Transfer $623: A=5625 → 5002, B=2575 → 3198
[TX062] Transfer $326: B=3198 → 2872, A=5002 → 5328
[TX063] Transfer $858: B=2872 → 2014, A=5328 → 6186
[TX064] Transfer $338: B=2014 → 1676, A=6186 → 6524
[TX065] Transfer $238: A=6524 → 6286, B=1676 → 1914
[TX066] Transfer $768: B=1914 → 1146, A=6286 → 7054
[TX067] Transfer $457: A=7054 → 6597, B=1146 → 1603
[TX068] Transfer $83: B=1603 → 1520, A=6597 → 6680
[TX069] Transfer $938: B=1520 → 582, A=6680 → 7618
[TX070] Transfer $311: B=582 → 271, A=7618 → 7929
[TX071] Transfer $807: A=7929 → 7122, B=271 → 1078
[TX072] Transfer $585: B=1078 → 493, A=7122 → 7707
[TX073] Transfer $797: A=7707 → 6910, B=493 → 1290
[TX074] Transfer $622: B=1290 → 668, A=6910 → 7532
[TX075] Transfer $351: B=668 → 317, A=7532 → 7883
[TX076] Transfer $22: B=317 → 295, A=7883 → 7905
[TX077] Transfer $131: B=295 → 164, A=7905 → 8036
[TX078] Transfer $649: A=8036 → 7387, B=164 → 813
[TX079] Transfer $899: A=7387 → 6488, B=813 → 1712
[TX080] Transfer $172: B=1712 → 1540, A=6488 → 6660
[TX081] Transfer $271: A=6660 → 6389, B=1540 → 1811
[TX082] Transfer $131: B=1811 → 1680, A=6389 → 6520
[TX083] Transfer $26: A=6520 → 6494, B=1680 → 1706
[TX084] Transfer $137: A=6494 → 6357, B=1706 → 1843
[TX085] Transfer $364: B=1843 → 1479, A=6357 → 6721
[TX086] Transfer $715: A=6721 → 6006, B=1479 → 2194
[TX087] Transfer $123: A=6006 → 5883, B=2194 → 2317
[TX088] Transfer $607: B=2317 → 1710, A=5883 → 6490
[TX089] Transfer $77: A=6490 → 6413, B=1710 → 1787
[TX090] Transfer $934: B=1787 → 853, A=6413 → 7347
[TX091] Transfer $448: B=853 → 405, A=7347 → 7795
[TX092] Transfer $70: B=405 → 335, A=7795 → 7865
[TX093] Transfer $157: A=7865 → 7708, B=335 → 492
[TX094] Transfer $692: A=7708 → 7016, B=492 → 1184
[TX095] Transfer $330: B=1184 → 854, A=7016 → 7346
[TX096] Transfer $522: B=854 → 332, A=7346 → 7868
[TX097] Transfer $61: B=332 → 271, A=7868 → 7929
[TX098] Transfer $89: B=271 → 182, A=7929 → 8018
[TX099] Transfer $8028: A=8018 → -10, B=182 → 8210
[TX100] Transfer $328: B=8210 → 7882, A=-10 → 318
[TX101] Transfer $12: A=318 → 306, B=7882 → 7894
[TX102] Transfer $134: A=306 → 172, B=7894 → 8028
[TX103] Transfer $103: B=8028 → 7925, A=172 → 275
[TX104] Transfer $171: B=7925 → 7754, A=275 → 446
[TX105] Transfer $142: A=446 → 304, B=7754 → 7896
[TX106] Transfer $231: B=7896 → 7665, A=304 → 535
[TX107] Transfer $134: A=535 → 401, B=7665 → 7799
[TX108] Transfer $144: A=401 → 257, B=7799 → 7943
POSSIBLE BUG TYPES (choose exactly one):
- CALC_ERROR: Mathematical calculation is incorrect
- NEGATIVE_BAL: Account balance becomes negative
- LOST_UPDATE: Concurrent update causes lost transaction
- DUPLICATE_TXN: Same transaction processed multiple times
Identify the SINGLE bug if any exists.
Respond with ONLY a JSON object:
{"bug_type": "<type>", "bug_location": "<TX_ID>"
Your response:
|
NEGATIVE_BAL
|
TX099
|
Account balance goes negative
|
NEGATIVE_BAL
| 108
|
{"bug_type": "NEGATIVE_BAL", "bug_location": "TX099", "explanation": "Account balance goes negative"}
|
{"bug_type": "NEGATIVE_BAL", "n_ops": 108}
|
41
|
Analyze this banking transaction log for bugs.
Each operation shows the complete state change.
INITIAL STATE:
{
"account_A": 4000,
"account_B": 4200,
"total": 8200
}
RULES:
1. Total money must remain constant (conservation)
2. No account can go negative
3. All calculations must be mathematically correct
TRANSACTION LOG:
[TX001] Transfer $30: B=4200 → 4170, A=4000 → 4030
[TX002] Transfer $125: B=4170 → 4045, A=4030 → 4155
[TX003] Transfer $596: B=4045 → 3449, A=4155 → 4751
[TX004] Transfer $662: B=3449 → 2787, A=4751 → 5413
[TX005] Transfer $931: B=2787 → 1856, A=5413 → 6344
[TX006] Transfer $481: B=1856 → 1375, A=6344 → 6825
[TX007] Transfer $11: B=1375 → 1364, A=6825 → 6836
[TX008] Transfer $514: A=6836 → 6322, B=1364 → 1878
[TX009] Transfer $926: A=6322 → 5396, B=1878 → 2804
[TX010] Transfer $180: B=2804 → 2624, A=5396 → 5576
[TX011] Transfer $673: A=5576 → 4903, B=2624 → 3297
[TX012] Transfer $734: B=3297 → 2563, A=4903 → 5637
[TX013] Transfer $805: A=5637 → 4832, B=2563 → 3368
[TX014] Transfer $71: B=3368 → 3297, A=4832 → 4903
[TX015] Transfer $987: B=3297 → 2310, A=4903 → 5890
[TX016] Transfer $591: B=2310 → 1719, A=5890 → 6481
[TX017] Transfer $716: B=1719 → 1003, A=6481 → 7197
[TX018] Transfer $600: B=1003 → 403, A=7197 → 7797
[TX019] Transfer $25: B=403 → 378, A=7797 → 7822
[TX020] Transfer $239: A=7822 → 7583, B=378 → 617
[TX021] Transfer $513: A=7583 → 7070, B=617 → 1130
[TX022] Transfer $780: B=1130 → 350, A=7070 → 7850
[TX023] Transfer $109: A=7850 → 7741, B=350 → 459
[TX024] Transfer $775: A=7741 → 6966, B=459 → 1234
[TX025] Transfer $65: B=1234 → 1169, A=6966 → 7031
[TX026] Transfer $40: B=1169 → 1129, A=7031 → 7071
[TX027] Transfer $783: A=7071 → 6288, B=1129 → 1912
[TX028] Transfer $947: B=1912 → 965, A=6288 → 7235
[TX029] Transfer $112: A=7235 → 7123, B=965 → 1077
[TX030] Payment PAY1011: Transfer $70: B=1077 → 1007, A=7123 → 7193
[TX031] Transfer $260: A=7193 → 6933, B=1007 → 1267
[TX032] Transfer $697: B=1267 → 570, A=6933 → 7630
[TX033] Transfer $105: B=570 → 465, A=7630 → 7735
[TX034] Transfer $835: A=7735 → 6900, B=465 → 1300
[TX035] Transfer $598: A=6900 → 6302, B=1300 → 1898
[TX036] Transfer $210: A=6302 → 6092, B=1898 → 2108
[TX037] Transfer $916: A=6092 → 5176, B=2108 → 3024
[TX038] Transfer $794: A=5176 → 4382, B=3024 → 3818
[TX039] Transfer $350: B=3818 → 3468, A=4382 → 4732
[TX040] Transfer $196: A=4732 → 4536, B=3468 → 3664
[TX041] Transfer $514: A=4536 → 4022, B=3664 → 4178
[TX042] Transfer $635: B=4178 → 3543, A=4022 → 4657
[TX043] Transfer $451: A=4657 → 4206, B=3543 → 3994
[TX044] Transfer $896: B=3994 → 3098, A=4206 → 5102
[TX045] Transfer $132: A=5102 → 4970, B=3098 → 3230
[TX046] Transfer $122: B=3230 → 3108, A=4970 → 5092
[TX047] Transfer $54: B=3108 → 3054, A=5092 → 5146
[TX048] Transfer $231: B=3054 → 2823, A=5146 → 5377
[TX049] Transfer $401: B=2823 → 2422, A=5377 → 5778
[TX050] Transfer $895: B=2422 → 1527, A=5778 → 6673
[TX051] Transfer $78: A=6673 → 6595, B=1527 → 1605
[TX052] Transfer $410: A=6595 → 6185, B=1605 → 2015
[TX053] Transfer $598: A=6185 → 5587, B=2015 → 2613
[TX054] Transfer $670: B=2613 → 1943, A=5587 → 6257
[TX055] Transfer $348: A=6257 → 5909, B=1943 → 2291
[TX056] Transfer $207: B=2291 → 2084, A=5909 → 6116
[TX057] Transfer $144: B=2084 → 1940, A=6116 → 6260
[TX058] Transfer $948: A=6260 → 5312, B=1940 → 2888
[TX059] Transfer $507: A=5312 → 4805, B=2888 → 3395
[TX060] Transfer $356: A=4805 → 4449, B=3395 → 3751
[TX061] Transfer $614: A=4449 → 3835, B=3751 → 4365
[TX062] Transfer $971: A=3835 → 2864, B=4365 → 5336
[TX063] Transfer $742: A=2864 → 2122, B=5336 → 6078
[TX064] Transfer $38: A=2122 → 2084, B=6078 → 6116
[TX065] Transfer $667: B=6116 → 5449, A=2084 → 2751
[TX066] Transfer $491: B=5449 → 4958, A=2751 → 3242
[TX067] Transfer $23: B=4958 → 4935, A=3242 → 3265
[TX068] Transfer $794: A=3265 → 2471, B=4935 → 5729
[TX069] Transfer $700: A=2471 → 1771, B=5729 → 6429
[TX070] Transfer $55: A=1771 → 1716, B=6429 → 6484
[TX071] Transfer $714: B=6484 → 5770, A=1716 → 2430
[TX072] Transfer $720: A=2430 → 1710, B=5770 → 6490
[TX073] Transfer $120: B=6490 → 6370, A=1710 → 1830
[TX074] Transfer $920: B=6370 → 5450, A=1830 → 2750
[TX075] Transfer $200: B=5450 → 5250, A=2750 → 2950
[TX076] Transfer $942: B=5250 → 4308, A=2950 → 3892
[TX077] Transfer $239: A=3892 → 3653, B=4308 → 4547
[TX078] Transfer $234: A=3653 → 3419, B=4547 → 4781
[TX079] Transfer $823: B=4781 → 3958, A=3419 → 4242
[TX080] Transfer $834: A=4242 → 3408, B=3958 → 4792
[TX081] Transfer $60: A=3408 → 3348, B=4792 → 4852
[TX082] Transfer $186: A=3348 → 3162, B=4852 → 5038
[TX083] Transfer $323: B=5038 → 4715, A=3162 → 3485
[TX084] Payment PAY1011: Transfer $70: B=4715 → 4645, A=3485 → 3555
[TX085] Transfer $301: B=4645 → 4344, A=3555 → 3856
[TX086] Transfer $492: A=3856 → 3364, B=4344 → 4836
[TX087] Transfer $80: A=3364 → 3284, B=4836 → 4916
[TX088] Transfer $508: B=4916 → 4408, A=3284 → 3792
[TX089] Transfer $456: B=4408 → 3952, A=3792 → 4248
[TX090] Transfer $800: B=3952 → 3152, A=4248 → 5048
[TX091] Transfer $541: B=3152 → 2611, A=5048 → 5589
[TX092] Transfer $716: B=2611 → 1895, A=5589 → 6305
[TX093] Transfer $356: A=6305 → 5949, B=1895 → 2251
[TX094] Transfer $288: B=2251 → 1963, A=5949 → 6237
[TX095] Transfer $935: A=6237 → 5302, B=1963 → 2898
[TX096] Transfer $314: A=5302 → 4988, B=2898 → 3212
[TX097] Transfer $383: A=4988 → 4605, B=3212 → 3595
[TX098] Transfer $242: A=4605 → 4363, B=3595 → 3837
POSSIBLE BUG TYPES (choose exactly one):
- CALC_ERROR: Mathematical calculation is incorrect
- NEGATIVE_BAL: Account balance becomes negative
- LOST_UPDATE: Concurrent update causes lost transaction
- DUPLICATE_TXN: Same transaction processed multiple times
Identify the SINGLE bug if any exists.
Respond with ONLY a JSON object:
{"bug_type": "<type>", "bug_location": "<TX_ID>"
Your response:
|
DUPLICATE_TXN
|
TX084
|
Payment PAY1011 processed twice
|
DUPLICATE_TXN
| 98
|
{"bug_type": "DUPLICATE_TXN", "bug_location": "TX084", "explanation": "Payment PAY1011 processed twice"}
|
{"bug_type": "DUPLICATE_TXN", "n_ops": 98}
|
91
|
Analyze this banking transaction log for bugs.
Each operation shows the complete state change.
INITIAL STATE:
{
"account_A": 4000,
"account_B": 4200,
"total": 8200
}
RULES:
1. Total money must remain constant (conservation)
2. No account can go negative
3. All calculations must be mathematically correct
TRANSACTION LOG:
[TX001] Transfer $717: A=4000 → 3283, B=4200 → 4917
[TX002] Transfer $63: B=4917 → 4854, A=3283 → 3346
[TX003] Transfer $990: A=3346 → 2356, B=4854 → 5844
[TX004] Transfer $321: A=2356 → 2035, B=5844 → 6165
[TX005] Transfer $334: A=2035 → 1701, B=6165 → 6499
[TX006] Transfer $258: A=1701 → 1443, B=6499 → 6757
[TX007] Transfer $494: A=1443 → 949, B=6757 → 7251
[TX008] Transfer $648: B=7251 → 6603, A=949 → 1597
[TX009] Transfer $499: A=1597 → 1098, B=6603 → 7102
[TX010] Transfer $101: A=1098 → 997, B=7102 → 7203
[TX011] Transfer $648: A=997 → 349, B=7203 → 7851
[TX012] Transfer $310: B=7851 → 7541, A=349 → 659
[TX013] Transfer $467: A=659 → 192, B=7541 → 8008
[TX014] Transfer $210: A=192 → -18, B=8008 → 8218
[TX015] Balance check: A=-18
[TX016] Transfer $252: B=8218 → 7966, A=-18 → 234
[TX017] Transfer $69: A=234 → 165, B=7966 → 8035
[TX018] Transfer $3: A=165 → 162, B=8035 → 8038
[TX019] Transfer $56: B=8038 → 7982, A=162 → 218
[TX020] Transfer $8: A=218 → 210, B=7982 → 7990
[TX021] Transfer $44: A=210 → 166, B=7990 → 8034
[TX022] Transfer $693: B=8034 → 7341, A=166 → 859
[TX023] Transfer $174: B=7341 → 7167, A=859 → 1033
[TX024] Transfer $100: B=7167 → 7067, A=1033 → 1133
[TX025] Transfer $29: B=7067 → 7038, A=1133 → 1162
[TX026] Transfer $493: B=7038 → 6545, A=1162 → 1655
[TX027] Transfer $324: A=1655 → 1331, B=6545 → 6869
[TX028] Transfer $329: A=1331 → 1002, B=6869 → 7198
[TX029] Transfer $99: A=1002 → 903, B=7198 → 7297
[TX030] Transfer $916: B=7297 → 6381, A=903 → 1819
[TX031] Transfer $871: A=1819 → 948, B=6381 → 7252
[TX032] Transfer $140: A=948 → 808, B=7252 → 7392
[TX033] Transfer $40: A=808 → 768, B=7392 → 7432
[TX034] Transfer $239: A=768 → 529, B=7432 → 7671
[TX035] Transfer $342: A=529 → 187, B=7671 → 8013
[TX036] Transfer $49: A=187 → 138, B=8013 → 8062
[TX037] Transfer $672: B=8062 → 7390, A=138 → 810
[TX038] Transfer $681: A=810 → 129, B=7390 → 8071
[TX039] Transfer $5: A=129 → 124, B=8071 → 8076
[TX040] Transfer $19: A=124 → 105, B=8076 → 8095
[TX041] Transfer $230: B=8095 → 7865, A=105 → 335
[TX042] Transfer $60: A=335 → 275, B=7865 → 7925
[TX043] Transfer $48: A=275 → 227, B=7925 → 7973
[TX044] Transfer $817: B=7973 → 7156, A=227 → 1044
[TX045] Transfer $251: A=1044 → 793, B=7156 → 7407
[TX046] Transfer $854: B=7407 → 6553, A=793 → 1647
[TX047] Transfer $343: B=6553 → 6210, A=1647 → 1990
[TX048] Transfer $313: A=1990 → 1677, B=6210 → 6523
[TX049] Transfer $307: A=1677 → 1370, B=6523 → 6830
[TX050] Transfer $440: B=6830 → 6390, A=1370 → 1810
[TX051] Transfer $272: A=1810 → 1538, B=6390 → 6662
[TX052] Transfer $199: B=6662 → 6463, A=1538 → 1737
[TX053] Transfer $765: B=6463 → 5698, A=1737 → 2502
[TX054] Transfer $255: A=2502 → 2247, B=5698 → 5953
[TX055] Transfer $653: B=5953 → 5300, A=2247 → 2900
[TX056] Transfer $285: B=5300 → 5015, A=2900 → 3185
[TX057] Transfer $638: B=5015 → 4377, A=3185 → 3823
[TX058] Transfer $366: B=4377 → 4011, A=3823 → 4189
[TX059] Transfer $344: B=4011 → 3667, A=4189 → 4533
[TX060] Transfer $984: A=4533 → 3549, B=3667 → 4651
[TX061] Transfer $835: B=4651 → 3816, A=3549 → 4384
[TX062] Transfer $275: B=3816 → 3541, A=4384 → 4659
[TX063] Transfer $985: B=3541 → 2556, A=4659 → 5644
[TX064] Transfer $808: A=5644 → 4836, B=2556 → 3364
[TX065] Transfer $636: A=4836 → 4200, B=3364 → 4000
[TX066] Transfer $309: B=4000 → 3691, A=4200 → 4509
[TX067] Transfer $486: A=4509 → 4023, B=3691 → 4177
[TX068] Transfer $257: B=4177 → 3920, A=4023 → 4280
[TX069] Transfer $165: B=3920 → 3755, A=4280 → 4445
[TX070] Transfer $798: B=3755 → 2957, A=4445 → 5243
[TX071] Transfer $446: B=2957 → 2511, A=5243 → 5689
[TX072] Transfer $348: B=2511 → 2163, A=5689 → 6037
[TX073] Transfer $132: A=6037 → 5905, B=2163 → 2295
[TX074] Transfer $159: B=2295 → 2136, A=5905 → 6064
[TX075] Transfer $900: B=2136 → 1236, A=6064 → 6964
[TX076] Transfer $947: B=1236 → 289, A=6964 → 7911
[TX077] Transfer $107: A=7911 → 7804, B=289 → 396
[TX078] Transfer $43: B=396 → 353, A=7804 → 7847
[TX079] Transfer $886: A=7847 → 6961, B=353 → 1239
[TX080] Transfer $764: B=1239 → 475, A=6961 → 7725
[TX081] Transfer $279: A=7725 → 7446, B=475 → 754
[TX082] Transfer $422: A=7446 → 7024, B=754 → 1176
[TX083] Transfer $254: B=1176 → 922, A=7024 → 7278
[TX084] Transfer $805: A=7278 → 6473, B=922 → 1727
[TX085] Transfer $750: A=6473 → 5723, B=1727 → 2477
[TX086] Transfer $581: A=5723 → 5142, B=2477 → 3058
[TX087] Transfer $632: B=3058 → 2426, A=5142 → 5774
[TX088] Transfer $100: A=5774 → 5674, B=2426 → 2526
[TX089] Transfer $691: B=2526 → 1835, A=5674 → 6365
[TX090] Transfer $405: A=6365 → 5960, B=1835 → 2240
[TX091] Transfer $92: A=5960 → 5868, B=2240 → 2332
[TX092] Transfer $25: A=5868 → 5843, B=2332 → 2357
[TX093] Transfer $487: B=2357 → 1870, A=5843 → 6330
[TX094] Transfer $62: A=6330 → 6268, B=1870 → 1932
POSSIBLE BUG TYPES (choose exactly one):
- CALC_ERROR: Mathematical calculation is incorrect
- NEGATIVE_BAL: Account balance becomes negative
- LOST_UPDATE: Concurrent update causes lost transaction
- DUPLICATE_TXN: Same transaction processed multiple times
Identify the SINGLE bug if any exists.
Respond with ONLY a JSON object:
{"bug_type": "<type>", "bug_location": "<TX_ID>"
Your response:
|
NEGATIVE_BAL
|
TX014
|
Account balance goes negative
|
NEGATIVE_BAL
| 94
|
{"bug_type": "NEGATIVE_BAL", "bug_location": "TX014", "explanation": "Account balance goes negative"}
|
{"bug_type": "NEGATIVE_BAL", "n_ops": 94}
|
9
|
Analyze this banking transaction log for bugs.
Each operation shows the complete state change.
INITIAL STATE:
{
"account_A": 4000,
"account_B": 4200,
"total": 8200
}
RULES:
1. Total money must remain constant (conservation)
2. No account can go negative
3. All calculations must be mathematically correct
TRANSACTION LOG:
[TX001] Transfer $86: A=4000 → 3914, B=4200 → 4286
[TX002] Transfer $662: B=4286 → 3624, A=3914 → 4576
[TX003] Transfer $918: B=3624 → 2706, A=4576 → 5494
[TX004] Transfer $218: A=5494 → 5276, B=2706 → 2924
[TX005] Transfer $49: B=2924 → 2875, A=5276 → 5325
[TX006] Transfer $922: A=5325 → 4403, B=2875 → 3797
[TX007] Transfer $953: A=4403 → 3450, B=3797 → 4750
[TX008] Transfer $986: B=4750 → 3764, A=3450 → 4436
[TX009] Transfer $772: A=4436 → 3664, B=3764 → 4536
[TX010] Transfer $308: B=4536 → 4228, A=3664 → 3972
[TX011] Transfer $582: A=3972 → 3390, B=4228 → 4810
[TX012] Transfer $395: B=4810 → 4415, A=3390 → 3785
[TX013] Transfer $514: A=3785 → 3271, B=4415 → 4929
[TX014] Transfer $102: B=4929 → 4827, A=3271 → 3373
[TX015] Transfer $860: B=4827 → 3967, A=3373 → 4233
[TX016] Transfer $621: A=4233 → 3612, B=3967 → 4588
[TX017] Transfer $32: B=4588 → 4556, A=3612 → 3644
[TX018] Transfer $504: B=4556 → 4052, A=3644 → 4148
[TX019] Transfer $568: A=4148 → 3580, B=4052 → 4620
[TX020] Transfer $192: B=4620 → 4428, A=3580 → 3772
[TX021] Transfer $792: B=4428 → 3636, A=3772 → 4564
[TX022] Transfer $732: B=3636 → 2904, A=4564 → 5296
[TX023] Transfer $276: A=5296 → 5020, B=2904 → 3180
[TX024] Transfer $730: A=5020 → 4290, B=3180 → 3910
[TX025] Transfer $326: A=4290 → 3964, B=3910 → 4236
[TX026] Transfer $95: B=4236 → 4141, A=3964 → 4059
[TX027] Transfer $457: A=4059 → 3602, B=4141 → 4598
[TX028] Transfer $106: B=4598 → 4492, A=3602 → 3708
[TX029] Transfer $193: A=3708 → 3515, B=4492 → 4685
[TX030] Transfer $572: B=4685 → 4113, A=3515 → 4087
[TX031] Transfer $28: B=4113 → 4085, A=4087 → 4115
[TX032] Transfer $569: A=4115 → 3546, B=4085 → 4654
[TX033] Transfer $886: A=3546 → 2660, B=4654 → 5540
[TX034] Transfer $300: B=5540 → 5240, A=2660 → 2960
[TX035] Transfer $799: B=5240 → 4441, A=2960 → 3759
[TX036] Transfer $587: A=3759 → 3172, B=4441 → 5028
[TX037] Transfer $175: A=3172 → 2997, B=5028 → 5203
[TX038] Transfer $310: A=2997 → 2687, B=5203 → 5513
[TX039] Transfer $151: B=5513 → 5362, A=2687 → 2838
[TX040] Transfer $447: A=2838 → 2391, B=5362 → 5809
[TX041] Transfer $308: B=5809 → 5501, A=2391 → 2699
[TX042] Transfer $371: B=5501 → 5130, A=2699 → 3070
[TX043] Transfer $740: B=5130 → 4390, A=3070 → 3810
[TX044] Transfer $470: B=4390 → 3920, A=3810 → 4280
[TX045] Transfer $313: A=4280 → 3967, B=3920 → 4233
[TX046] Transfer $342: A=3967 → 3625, B=4233 → 4575
[TX047] Transfer $452: B=4575 → 4123, A=3625 → 4077
[TX048] Transfer $837: B=4123 → 3286, A=4077 → 4914
[TX049] Transfer $330: A=4914 → 4584, B=3286 → 3616
[TX050] Transfer $323: A=4584 → 4261, B=3616 → 3939
[TX051] Transfer $993: A=4261 → 3268, B=3939 → 4932
[TX052] Transfer $754: B=4932 → 4178, A=3268 → 4022
[TX053] Transfer $335: B=4178 → 3843, A=4022 → 4357
[TX054] Transfer $838: B=3843 → 3005, A=4357 → 5195
[TX055] Transfer $118: B=3005 → 2887, A=5195 → 5313
[TX056] Transfer $700: A=5313 → 4613, B=2887 → 3587
[TX057] Transfer $967: A=4613 → 3646, B=3587 → 4554
[TX058] Transfer $818: A=3646 → 2828, B=4554 → 5372
[TX059] Transfer $840: B=5372 → 4532, A=2828 → 3668
[TX060] Transfer $144: B=4532 → 4388, A=3668 → 3812
[TX061] Transfer $260: B=4388 → 4128, A=3812 → 4072
[TX062] Transfer $810: A=4072 → 3262, B=4128 → 4938
[TX063] Transfer $461: B=4938 → 4477, A=3262 → 3723
[TX064] Transfer $549: B=4477 → 3928, A=3723 → 4272
[TX065] Transfer $811: B=3928 → 3117, A=4272 → 5083
[TX066] Transfer $113: B=3117 → 3004, A=5083 → 5196
[TX067] Transfer $172: A=5196 → 5024, B=3004 → 3176
[TX068] Transfer $992: A=5024 → 4032, B=3176 → 4168
[TX069] Transfer $110: B=4168 → 4058, A=4032 → 4142
[TX070] Transfer $266: A=4142 → 3876, B=4058 → 4324
[TX071] Transfer $458: A=3876 → 3418, B=4324 → 4782
[TX072] Transfer $476: B=4782 → 4306, A=3418 → 3894
[TX073] Transfer $27: A=3894 → 3867, B=4306 → 4333
[TX074] Transfer $304: B=4333 → 4029, A=3867 → 4171
[TX075] Transfer $120: B=4029 → 3909, A=4171 → 4291
[TX076] Transfer $321: A=4291 → 3970, B=3909 → 4230
[TX077] Transfer $805: B=4230 → 3425, A=3970 → 4775
[TX078] Transfer $358: A=4775 → 4417, B=3425 → 3783
[TX079] Transfer $450: B=3783 → 3333, A=4417 → 4867
[TX080] Transfer $70: B=3333 → 3263, A=4867 → 4937
[TX081] Transfer $831: B=3263 → 2432, A=4937 → 5768
[TX082] Transfer $871: A=5768 → 4897, B=2432 → 3303
[TX083] Transfer $3309: B=3303 → -6, A=4897 → 8206
[TX084] Transfer $567: A=8206 → 7639, B=-6 → 561
[TX085] Transfer $575: A=7639 → 7064, B=561 → 1136
[TX086] Transfer $239: B=1136 → 897, A=7064 → 7303
[TX087] Transfer $192: B=897 → 705, A=7303 → 7495
[TX088] Transfer $31: B=705 → 674, A=7495 → 7526
[TX089] Transfer $608: A=7526 → 6918, B=674 → 1282
[TX090] Transfer $6: B=1282 → 1276, A=6918 → 6924
[TX091] Transfer $287: A=6924 → 6637, B=1276 → 1563
[TX092] Transfer $820: A=6637 → 5817, B=1563 → 2383
[TX093] Transfer $335: A=5817 → 5482, B=2383 → 2718
[TX094] Transfer $118: A=5482 → 5364, B=2718 → 2836
[TX095] Transfer $542: B=2836 → 2294, A=5364 → 5906
[TX096] Transfer $627: B=2294 → 1667, A=5906 → 6533
[TX097] Transfer $358: B=1667 → 1309, A=6533 → 6891
[TX098] Transfer $634: B=1309 → 675, A=6891 → 7525
[TX099] Transfer $942: A=7525 → 6583, B=675 → 1617
[TX100] Transfer $322: A=6583 → 6261, B=1617 → 1939
[TX101] Transfer $314: A=6261 → 5947, B=1939 → 2253
[TX102] Transfer $384: A=5947 → 5563, B=2253 → 2637
[TX103] Transfer $430: A=5563 → 5133, B=2637 → 3067
[TX104] Transfer $435: A=5133 → 4698, B=3067 → 3502
[TX105] Transfer $652: A=4698 → 4046, B=3502 → 4154
[TX106] Transfer $503: A=4046 → 3543, B=4154 → 4657
[TX107] Transfer $193: B=4657 → 4464, A=3543 → 3736
[TX108] Transfer $636: B=4464 → 3828, A=3736 → 4372
[TX109] Transfer $976: A=4372 → 3396, B=3828 → 4804
[TX110] Transfer $141: A=3396 → 3255, B=4804 → 4945
[TX111] Transfer $988: A=3255 → 2267, B=4945 → 5933
[TX112] Transfer $703: B=5933 → 5230, A=2267 → 2970
[TX113] Transfer $729: B=5230 → 4501, A=2970 → 3699
POSSIBLE BUG TYPES (choose exactly one):
- CALC_ERROR: Mathematical calculation is incorrect
- NEGATIVE_BAL: Account balance becomes negative
- LOST_UPDATE: Concurrent update causes lost transaction
- DUPLICATE_TXN: Same transaction processed multiple times
Identify the SINGLE bug if any exists.
Respond with ONLY a JSON object:
{"bug_type": "<type>", "bug_location": "<TX_ID>"
Your response:
|
NEGATIVE_BAL
|
TX083
|
Account balance goes negative
|
NEGATIVE_BAL
| 113
|
{"bug_type": "NEGATIVE_BAL", "bug_location": "TX083", "explanation": "Account balance goes negative"}
|
{"bug_type": "NEGATIVE_BAL", "n_ops": 113}
|
65
|
Analyze this banking transaction log for bugs.
Each operation shows the complete state change.
INITIAL STATE:
{
"account_A": 4000,
"account_B": 4200,
"total": 8200
}
RULES:
1. Total money must remain constant (conservation)
2. No account can go negative
3. All calculations must be mathematically correct
TRANSACTION LOG:
[TX001] Transfer $720: A=4000 → 3280, B=4200 → 4920
[TX002] Transfer $257: B=4920 → 4663, A=3280 → 3537
[TX003] Transfer $19: A=3537 → 3518, B=4663 → 4682
[TX004] Transfer $981: B=4682 → 3701, A=3518 → 4499
[TX005] Transfer $379: B=3701 → 3322, A=4499 → 4878
[TX006] Transfer $639: B=3322 → 2683, A=4878 → 5517
[TX007] Transfer $455: A=5517 → 5062, B=2683 → 3138
[TX008] Transfer $293: B=3138 → 2845, A=5062 → 5355
[TX009] Transfer $970: B=2845 → 1875, A=5355 → 6325
[TX010] Transfer $493: A=6325 → 5832, B=1875 → 2368
[TX011] Payment PAY1015: Transfer $858: A=5832 → 4974, B=2368 → 3226
[TX012] Transfer $446: B=3226 → 2780, A=4974 → 5420
[TX013] Transfer $47: A=5420 → 5373, B=2780 → 2827
[TX014] Transfer $818: A=5373 → 4555, B=2827 → 3645
[TX015] Transfer $214: A=4555 → 4341, B=3645 → 3859
[TX016] Transfer $569: A=4341 → 3772, B=3859 → 4428
[TX017] Transfer $462: A=3772 → 3310, B=4428 → 4890
[TX018] Transfer $783: B=4890 → 4107, A=3310 → 4093
[TX019] Transfer $167: A=4093 → 3926, B=4107 → 4274
[TX020] Transfer $559: B=4274 → 3715, A=3926 → 4485
[TX021] Transfer $833: A=4485 → 3652, B=3715 → 4548
[TX022] Transfer $111: B=4548 → 4437, A=3652 → 3763
[TX023] Transfer $891: A=3763 → 2872, B=4437 → 5328
[TX024] Transfer $723: A=2872 → 2149, B=5328 → 6051
[TX025] Transfer $88: A=2149 → 2061, B=6051 → 6139
[TX026] Transfer $420: A=2061 → 1641, B=6139 → 6559
[TX027] Transfer $254: B=6559 → 6305, A=1641 → 1895
[TX028] Transfer $731: A=1895 → 1164, B=6305 → 7036
[TX029] Transfer $83: A=1164 → 1081, B=7036 → 7119
[TX030] Transfer $371: A=1081 → 710, B=7119 → 7490
[TX031] Transfer $309: B=7490 → 7181, A=710 → 1019
[TX032] Transfer $181: A=1019 → 838, B=7181 → 7362
[TX033] Transfer $27: A=838 → 811, B=7362 → 7389
[TX034] Transfer $188: A=811 → 623, B=7389 → 7577
[TX035] Transfer $459: B=7577 → 7118, A=623 → 1082
[TX036] Transfer $612: B=7118 → 6506, A=1082 → 1694
[TX037] Transfer $32: B=6506 → 6474, A=1694 → 1726
[TX038] Transfer $576: A=1726 → 1150, B=6474 → 7050
[TX039] Transfer $205: A=1150 → 945, B=7050 → 7255
[TX040] Transfer $162: A=945 → 783, B=7255 → 7417
[TX041] Transfer $860: B=7417 → 6557, A=783 → 1643
[TX042] Transfer $449: B=6557 → 6108, A=1643 → 2092
[TX043] Transfer $363: A=2092 → 1729, B=6108 → 6471
[TX044] Transfer $852: A=1729 → 877, B=6471 → 7323
[TX045] Transfer $21: A=877 → 856, B=7323 → 7344
[TX046] Transfer $274: A=856 → 582, B=7344 → 7618
[TX047] Transfer $437: B=7618 → 7181, A=582 → 1019
[TX048] Transfer $340: A=1019 → 679, B=7181 → 7521
[TX049] Transfer $121: A=679 → 558, B=7521 → 7642
[TX050] Transfer $303: A=558 → 255, B=7642 → 7945
[TX051] Transfer $129: B=7945 → 7816, A=255 → 384
[TX052] Transfer $22: B=7816 → 7794, A=384 → 406
[TX053] Transfer $558: B=7794 → 7236, A=406 → 964
[TX054] Transfer $589: A=964 → 375, B=7236 → 7825
[TX055] Transfer $129: A=375 → 246, B=7825 → 7954
[TX056] Transfer $46: A=246 → 200, B=7954 → 8000
[TX057] Transfer $80: A=200 → 120, B=8000 → 8080
[TX058] Transfer $17: A=120 → 103, B=8080 → 8097
[TX059] Transfer $656: B=8097 → 7441, A=103 → 759
[TX060] Transfer $205: A=759 → 554, B=7441 → 7646
[TX061] Transfer $703: B=7646 → 6943, A=554 → 1257
[TX062] Transfer $393: A=1257 → 864, B=6943 → 7336
[TX063] Transfer $422: B=7336 → 6914, A=864 → 1286
[TX064] Transfer $154: B=6914 → 6760, A=1286 → 1440
[TX065] Transfer $295: A=1440 → 1145, B=6760 → 7055
[TX066] Transfer $493: A=1145 → 652, B=7055 → 7548
[TX067] Transfer $240: B=7548 → 7308, A=652 → 892
[TX068] Transfer $449: A=892 → 443, B=7308 → 7757
[TX069] Transfer $265: A=443 → 178, B=7757 → 8022
[TX070] Transfer $627: B=8022 → 7395, A=178 → 805
[TX071] Transfer $70: B=7395 → 7325, A=805 → 875
[TX072] Transfer $906: B=7325 → 6419, A=875 → 1781
[TX073] Transfer $28: B=6419 → 6391, A=1781 → 1809
[TX074] Transfer $54: A=1809 → 1755, B=6391 → 6445
[TX075] Transfer $110: B=6445 → 6335, A=1755 → 1865
[TX076] Transfer $58: A=1865 → 1807, B=6335 → 6393
[TX077] Transfer $647: A=1807 → 1160, B=6393 → 7040
[TX078] Transfer $872: B=7040 → 6168, A=1160 → 2032
[TX079] Transfer $380: A=2032 → 1652, B=6168 → 6548
[TX080] Transfer $920: B=6548 → 5628, A=1652 → 2572
[TX081] Transfer $457: A=2572 → 2115, B=5628 → 6085
[TX082] Transfer $952: A=2115 → 1163, B=6085 → 7037
[TX083] Transfer $995: A=1163 → 168, B=7037 → 8032
[TX084] Transfer $313: B=8032 → 7719, A=168 → 481
[TX085] Transfer $63: A=481 → 418, B=7719 → 7782
[TX086] Transfer $536: B=7782 → 7246, A=418 → 954
[TX087] Transfer $521: A=954 → 433, B=7246 → 7767
[TX088] Transfer $956: B=7767 → 6811, A=433 → 1389
[TX089] Transfer $65: A=1389 → 1324, B=6811 → 6876
[TX090] Transfer $555: A=1324 → 769, B=6876 → 7431
[TX091] Transfer $487: A=769 → 282, B=7431 → 7918
[TX092] Transfer $684: B=7918 → 7234, A=282 → 966
[TX093] Transfer $864: A=966 → 102, B=7234 → 8098
[TX094] Transfer $2: A=102 → 100, B=8098 → 8100
[TX095] Transfer $95: B=8100 → 8005, A=100 → 195
[TX096] Transfer $67: A=195 → 128, B=8005 → 8072
[TX097] Transfer $812: B=8072 → 7260, A=128 → 940
[TX098] Transfer $575: A=940 → 365, B=7260 → 7835
[TX099] Payment PAY1015: Transfer $858: A=365 → -493, B=7835 → 8693
POSSIBLE BUG TYPES (choose exactly one):
- CALC_ERROR: Mathematical calculation is incorrect
- NEGATIVE_BAL: Account balance becomes negative
- LOST_UPDATE: Concurrent update causes lost transaction
- DUPLICATE_TXN: Same transaction processed multiple times
Identify the SINGLE bug if any exists.
Respond with ONLY a JSON object:
{"bug_type": "<type>", "bug_location": "<TX_ID>"
Your response:
|
DUPLICATE_TXN
|
TX099
|
Payment PAY1015 processed twice
|
DUPLICATE_TXN
| 99
|
{"bug_type": "DUPLICATE_TXN", "bug_location": "TX099", "explanation": "Payment PAY1015 processed twice"}
|
{"bug_type": "DUPLICATE_TXN", "n_ops": 99}
|
50
|
Analyze this banking transaction log for bugs.
Each operation shows the complete state change.
INITIAL STATE:
{
"account_A": 4000,
"account_B": 4200,
"total": 8200
}
RULES:
1. Total money must remain constant (conservation)
2. No account can go negative
3. All calculations must be mathematically correct
TRANSACTION LOG:
[TX001] Transfer $240: B=4200 → 3960, A=4000 → 4240
[TX002] Transfer $786: B=3960 → 3174, A=4240 → 5026
[TX003] Transfer $996: B=3174 → 2178, A=5026 → 6022
[TX004] Transfer $603: A=6022 → 5419, B=2178 → 2781
[TX005] Transfer $630: A=5419 → 4789, B=2781 → 3411
[TX006] Transfer $749: A=4789 → 4040, B=3411 → 4160
[TX007] Transfer $256: A=4040 → 3784, B=4160 → 4416
[TX008] Transfer $32: A=3784 → 3752, B=4416 → 4448
[TX009] Transfer $341: B=4448 → 4107, A=3752 → 4093
[TX010] Transfer $970: A=4093 → 3123, B=4107 → 5077
[TX011] Transfer $826: B=5077 → 4251, A=3123 → 3949
[TX012] Transfer $715: B=4251 → 3536, A=3949 → 4664
[TX013] Transfer $869: B=3536 → 2667, A=4664 → 5533
[TX014] Transfer $100: B=2667 → 2567, A=5533 → 5633
[TX015] Transfer $183: B=2567 → 2384, A=5633 → 5816
[TX016] Transfer $513: B=2384 → 1871, A=5816 → 6329
[TX017] Transfer $268: A=6329 → 6061, B=1871 → 2139
[TX018] Transfer $234: B=2139 → 1905, A=6061 → 6295
[TX019] Transfer $349: B=1905 → 1556, A=6295 → 6644
[TX020] Transfer $538: B=1556 → 1018, A=6644 → 7182
[TX021] Transfer $902: B=1018 → 116, A=7182 → 8084
[TX022] Transfer $701: A=8084 → 7383, B=116 → 817
[TX023] Transfer $174: B=817 → 643, A=7383 → 7557
[TX024] Transfer $6: A=7557 → 7551, B=643 → 649
[TX025] Transfer $315: B=649 → 334, A=7551 → 7866
[TX026] Transfer $881: A=7866 → 6985, B=334 → 1215
[TX027] Transfer $195: A=6985 → 6790, B=1215 → 1410
[TX028] Transfer $550: B=1410 → 860, A=6790 → 7340
[TX029] Transfer $101: A=7340 → 7239, B=860 → 961
[TX030] Transfer $589: A=7239 → 6650, B=961 → 1550
[TX031] Transfer $725: A=6650 → 5925, B=1550 → 2275
[TX032] Transfer $835: A=5925 → 5090, B=2275 → 3110
[TX033] Transfer $639: B=3110 → 2471, A=5090 → 5729
[TX034] Transfer $828: A=5729 → 4901, B=2471 → 3299
[TX035] Transfer $112: B=3299 → 3187, A=4901 → 5013
[TX036] Transfer $606: B=3187 → 2581, A=5013 → 5619
[TX037] Transfer $511: A=5619 → 5108, B=2581 → 3092
[TX038] Transfer $629: A=5108 → 4479, B=3092 → 3721
[TX039] Transfer $952: B=3721 → 2769, A=4479 → 5431
[TX040] Transfer $968: B=2769 → 1801, A=5431 → 6399
[TX041] Transfer $348: A=6399 → 6051, B=1801 → 2149
[TX042] Transfer $146: A=6051 → 5905, B=2149 → 2295
[TX043] Transfer $194: A=5905 → 5711, B=2295 → 2489
[TX044] Transfer $368: B=2489 → 2121, A=5711 → 6079
[TX045] Transfer $832: A=6079 → 5247, B=2121 → 2953
[TX046] Transfer $681: A=5247 → 4566, B=2953 → 3634
[TX047] Transfer $777: B=3634 → 2857, A=4566 → 5343
[TX048] Transfer $330: A=5343 → 5013, B=2857 → 3187
[TX049] Transfer $783: A=5013 → 4230, B=3187 → 3970
[TX050] Transfer $968: A=4230 → 3262, B=3970 → 4938
[TX051] Transfer $447: B=4938 → 4491, A=3262 → 3709
[TX052] Transfer $504: B=4491 → 3987, A=3709 → 4213
[TX053] Transfer $108: A=4213 → 4105, B=3987 → 4095
[TX054] Transfer $626: B=4095 → 3469, A=4105 → 4731
[TX055] Transfer $511: B=3469 → 2958, A=4731 → 5242
[TX056] Transfer $542: B=2958 → 2416, A=5242 → 5784
[TX057] Transfer $971: A=5784 → 4813, B=2416 → 3387
[TX058] Transfer $915: A=4813 → 3898, B=3387 → 4302
[TX059] Transfer $758: A=3898 → 3140, B=4302 → 5060
[TX060] Transfer $50: A=3140 → 3090, B=5060 → 5110
[TX061] Transfer $194: B=5110 → 4916, A=3090 → 3284
[TX062] Transfer $845: B=4916 → 4071, A=3284 → 4129
[TX063] Transfer $522: B=4071 → 3549, A=4129 → 4651
[TX064] Transfer $934: B=3549 → 2615, A=4651 → 5585
[TX065] Transfer $470: A=5585 → 5115, B=2615 → 3085
[TX066] Transfer $731: A=5115 → 4384, B=3085 → 3816
[TX067] Transfer $733: B=3816 → 3083, A=4384 → 5117
[TX068] Transfer $213: A=5117 → 4904, B=3083 → 3296
[TX069] Transfer $946: A=4904 → 3958, B=3296 → 4242
[TX070] Transfer $4246: B=4242 → -4, A=3958 → 8204
[TX071] Balance check: B=-4
[TX072] Transfer $183: A=8204 → 8021, B=-4 → 179
[TX073] Transfer $49: B=179 → 130, A=8021 → 8070
[TX074] Transfer $6: B=130 → 124, A=8070 → 8076
[TX075] Transfer $638: A=8076 → 7438, B=124 → 762
[TX076] Transfer $586: B=762 → 176, A=7438 → 8024
[TX077] Transfer $36: B=176 → 140, A=8024 → 8060
[TX078] Transfer $28: B=140 → 112, A=8060 → 8088
[TX079] Transfer $6: B=112 → 106, A=8088 → 8094
[TX080] Transfer $261: A=8094 → 7833, B=106 → 367
[TX081] Transfer $44: A=7833 → 7789, B=367 → 411
[TX082] Transfer $116: B=411 → 295, A=7789 → 7905
[TX083] Transfer $120: A=7905 → 7785, B=295 → 415
[TX084] Transfer $70: A=7785 → 7715, B=415 → 485
[TX085] Transfer $173: A=7715 → 7542, B=485 → 658
[TX086] Transfer $293: B=658 → 365, A=7542 → 7835
[TX087] Transfer $135: B=365 → 230, A=7835 → 7970
[TX088] Transfer $406: A=7970 → 7564, B=230 → 636
[TX089] Transfer $570: A=7564 → 6994, B=636 → 1206
[TX090] Transfer $132: B=1206 → 1074, A=6994 → 7126
[TX091] Transfer $492: A=7126 → 6634, B=1074 → 1566
[TX092] Transfer $236: A=6634 → 6398, B=1566 → 1802
[TX093] Transfer $190: A=6398 → 6208, B=1802 → 1992
[TX094] Transfer $249: A=6208 → 5959, B=1992 → 2241
[TX095] Transfer $450: B=2241 → 1791, A=5959 → 6409
[TX096] Transfer $613: A=6409 → 5796, B=1791 → 2404
[TX097] Transfer $788: A=5796 → 5008, B=2404 → 3192
[TX098] Transfer $46: A=5008 → 4962, B=3192 → 3238
[TX099] Transfer $351: A=4962 → 4611, B=3238 → 3589
[TX100] Transfer $360: B=3589 → 3229, A=4611 → 4971
[TX101] Transfer $925: B=3229 → 2304, A=4971 → 5896
[TX102] Transfer $391: A=5896 → 5505, B=2304 → 2695
[TX103] Transfer $519: A=5505 → 4986, B=2695 → 3214
[TX104] Transfer $190: A=4986 → 4796, B=3214 → 3404
POSSIBLE BUG TYPES (choose exactly one):
- CALC_ERROR: Mathematical calculation is incorrect
- NEGATIVE_BAL: Account balance becomes negative
- LOST_UPDATE: Concurrent update causes lost transaction
- DUPLICATE_TXN: Same transaction processed multiple times
Identify the SINGLE bug if any exists.
Respond with ONLY a JSON object:
{"bug_type": "<type>", "bug_location": "<TX_ID>"
Your response:
|
NEGATIVE_BAL
|
TX070
|
Account balance goes negative
|
NEGATIVE_BAL
| 104
|
{"bug_type": "NEGATIVE_BAL", "bug_location": "TX070", "explanation": "Account balance goes negative"}
|
{"bug_type": "NEGATIVE_BAL", "n_ops": 104}
|
1
|
Analyze this banking transaction log for bugs.
Each operation shows the complete state change.
INITIAL STATE:
{
"account_A": 4000,
"account_B": 4200,
"total": 8200
}
RULES:
1. Total money must remain constant (conservation)
2. No account can go negative
3. All calculations must be mathematically correct
TRANSACTION LOG:
[TX001] Transfer $60: B=4200 → 4140, A=4000 → 4060
[TX002] Transfer $72: A=4060 → 3988, B=4140 → 4212
[TX003] Transfer $415: A=3988 → 3573, B=4212 → 4627
[TX004] Transfer $594: A=3573 → 2979, B=4627 → 5221
[TX005] Transfer $431: A=2979 → 2548, B=5221 → 5652
[TX006] Transfer $211: B=5652 → 5441, A=2548 → 2759
[TX007] Transfer $273: B=5441 → 5168, A=2759 → 3032
[TX008] Transfer $689: B=5168 → 4479, A=3032 → 3721
[TX009] Transfer $325: B=4479 → 4154, A=3721 → 4046
[TX010] Transfer $471: A=4046 → 3575, B=4154 → 4625
[TX011] Transfer $552: A=3575 → 3023, B=4625 → 5177
[TX012] Transfer $137: A=3023 → 2886, B=5177 → 5314
[TX013] Transfer $902: B=5314 → 4412, A=2886 → 3788
[TX014] Transfer $293: A=3788 → 3495, B=4412 → 4705
[TX015] Transfer $855: A=3495 → 2640, B=4705 → 5560
[TX016] Transfer $685: B=5560 → 4875, A=2640 → 3325
[TX017] Transfer $963: B=4875 → 3912, A=3325 → 4288
[TX018] Transfer $120: A=4288 → 4168, B=3912 → 4032
[TX019] Transfer $280: A=4168 → 3888, B=4032 → 4312
[TX020] Transfer $736: B=4312 → 3576, A=3888 → 4624
[TX021] Transfer $705: B=3576 → 2871, A=4624 → 5329
[TX022] Transfer $259: B=2871 → 2612, A=5329 → 5588
[TX023] Transfer $651: A=5588 → 4937, B=2612 → 3263
[TX024] Transfer $47: B=3263 → 3216, A=4937 → 4984
[TX025] Transfer $791: A=4984 → 4193, B=3216 → 4007
[TX026] Transfer $167: A=4193 → 4026, B=4007 → 4174
[TX027] Transfer $576: B=4174 → 3598, A=4026 → 4602
[TX028] Transfer $79: A=4602 → 4523, B=3598 → 3677
[TX029] Transfer $856: A=4523 → 3667, B=3677 → 4533
[TX030] Transfer $442: B=4533 → 4091, A=3667 → 4109
[TX031] Transfer $317: A=4109 → 3792, B=4091 → 4408
[TX032] Transfer $922: B=4408 → 3486, A=3792 → 4714
[TX033] Transfer $700: B=3486 → 2786, A=4714 → 5414
[TX034] Transfer $364: A=5414 → 5050, B=2786 → 3150
[TX035] Transfer $949: B=3150 → 2201, A=5050 → 5999
[TX036] Transfer $821: A=5999 → 5178, B=2201 → 3022
[TX037] Transfer $27: A=5178 → 5151, B=3022 → 3049
[TX038] Transfer $803: A=5151 → 4348, B=3049 → 3852
[TX039] Transfer $275: B=3852 → 3577, A=4348 → 4623
[TX040] Transfer $393: A=4623 → 4230, B=3577 → 3970
[TX041] Transfer $229: A=4230 → 4001, B=3970 → 4199
[TX042] Transfer $360: A=4001 → 3641, B=4199 → 4559
[TX043] Transfer $230: B=4559 → 4329, A=3641 → 3871
[TX044] Transfer $410: A=3871 → 3461, B=4329 → 4739
[TX045] Transfer $887: B=4739 → 3852, A=3461 → 4348
[TX046] Transfer $361: A=4348 → 3987, B=3852 → 4213
[TX047] Transfer $963: B=4213 → 3250, A=3987 → 4950
[TX048] Transfer $900: A=4950 → 4050, B=3250 → 4150
[TX049] Transfer $596: B=4150 → 3554, A=4050 → 4646
[TX050] Transfer $113: B=3554 → 3441, A=4646 → 4759
[TX051] Transfer $748: B=3441 → 2693, A=4759 → 5507
[TX052] Transfer $622: B=2693 → 2071, A=5507 → 6129
[TX053] Transfer $923: A=6129 → 5206, B=2071 → 2994
[TX054] Transfer $47: A=5206 → 5159, B=2994 → 3041
[TX055] Transfer $534: B=3041 → 2507, A=5159 → 5693
[TX056] Transfer $443: A=5693 → 5250, B=2507 → 2950
[TX057] Transfer $640: A=5250 → 4610, B=2950 → 3590
[TX058] Transfer $739: B=3590 → 2851, A=4610 → 5349
[TX059] Transfer $684: B=2851 → 2167, A=5349 → 6033
[TX060] Transfer $414: B=2167 → 1753, A=6033 → 6447
[TX061] Transfer $198: B=1753 → 1555, A=6447 → 6645
[TX062] Transfer $695: B=1555 → 860, A=6645 → 7340
[TX063] Transfer $417: A=7340 → 6923, B=860 → 1277
[TX064] Transfer $295: A=6923 → 6628, B=1277 → 1572
[TX065] Transfer $806: A=6628 → 5822, B=1572 → 2378
[TX066] Transfer $454: B=2378 → 1924, A=5822 → 6276
[TX067] Transfer $525: B=1924 → 1399, A=6276 → 6801
[TX068] Transfer $676: B=1399 → 723, A=6801 → 7477
[TX069] Transfer $529: A=7477 → 6948, B=723 → 1252
[TX070] Transfer $840: B=1252 → 412, A=6948 → 7788
[TX071] Transfer $232: A=7788 → 7556, B=412 → 644
[TX072] Transfer $27: A=7556 → 7529, B=644 → 671
[TX073] Transfer $488: A=7529 → 7041, B=671 → 1159
[TX074] Transfer $426: A=7041 → 6615, B=1159 → 1585
[TX075] Transfer $508: A=6615 → 6107, B=1585 → 2093
[TX076] Transfer $153: B=2093 → 1940, A=6107 → 6261
[TX077] Transfer $226: A=6260 → 6034, B=1940 → 2166
[TX078] Transfer $53: A=6034 → 5981, B=2166 → 2219
POSSIBLE BUG TYPES (choose exactly one):
- CALC_ERROR: Mathematical calculation is incorrect
- NEGATIVE_BAL: Account balance becomes negative
- LOST_UPDATE: Concurrent update causes lost transaction
- DUPLICATE_TXN: Same transaction processed multiple times
Identify the SINGLE bug if any exists.
Respond with ONLY a JSON object:
{"bug_type": "<type>", "bug_location": "<TX_ID>"
Your response:
|
CALC_ERROR
|
TX076
|
Mathematical calculation is incorrect
|
CALC_ERROR
| 78
|
{"bug_type": "CALC_ERROR", "bug_location": "TX076", "explanation": "Mathematical calculation is incorrect"}
|
{"bug_type": "CALC_ERROR", "n_ops": 78}
|
70
|
Analyze this banking transaction log for bugs.
Each operation shows the complete state change.
INITIAL STATE:
{
"account_A": 4000,
"account_B": 4200,
"total": 8200
}
RULES:
1. Total money must remain constant (conservation)
2. No account can go negative
3. All calculations must be mathematically correct
TRANSACTION LOG:
[TX001] Transfer $818: B=4200 → 3382, A=4000 → 4818
[TX002] Transfer $470: A=4818 → 4348, B=3382 → 3852
[TX003] Transfer $535: B=3852 → 3317, A=4348 → 4883
[TX004] Transfer $263: A=4883 → 4620, B=3317 → 3580
[TX005] Transfer $913: B=3580 → 2667, A=4620 → 5533
[TX006] Transfer $3: A=5533 → 5530, B=2667 → 2670
[TX007] Transfer $95: B=2670 → 2575, A=5530 → 5625
[TX008] Transfer $233: B=2575 → 2342, A=5625 → 5858
[TX009] Transfer $195: A=5858 → 5663, B=2342 → 2537
[TX010] Transfer $103: B=2537 → 2434, A=5663 → 5766
[TX011] Transfer $363: A=5766 → 5403, B=2434 → 2797
[TX012] Transfer $742: A=5403 → 4661, B=2797 → 3539
[TX013] Transfer $581: A=4661 → 4080, B=3539 → 4120
[TX014] Transfer $110: A=4080 → 3970, B=4120 → 4230
[TX015] Transfer $218: A=3970 → 3752, B=4230 → 4448
[TX016] Transfer $565: B=4448 → 3883, A=3752 → 4317
[TX017] Transfer $584: A=4317 → 3733, B=3883 → 4467
[TX018] Transfer $173: B=4467 → 4294, A=3733 → 3906
[TX019] Transfer $571: A=3906 → 3335, B=4294 → 4865
[TX020] Transfer $770: A=3335 → 2565, B=4865 → 5635
[TX021] Transfer $492: B=5635 → 5143, A=2565 → 3057
[TX022] Transfer $562: A=3057 → 2495, B=5143 → 5705
[TX023] Transfer $522: B=5705 → 5183, A=2495 → 3017
[TX024] Transfer $824: B=5183 → 4359, A=3017 → 3841
[TX025] Transfer $986: B=4359 → 3373, A=3841 → 4827
[TX026] Transfer $675: B=3373 → 2698, A=4827 → 5502
[TX027] Transfer $174: A=5502 → 5328, B=2698 → 2872
[TX028] Transfer $3: B=2872 → 2869, A=5328 → 5331
[TX029] Transfer $566: A=5331 → 4765, B=2869 → 3435
[TX030] Transfer $551: A=4765 → 4214, B=3435 → 3986
[TX031] Transfer $140: A=4214 → 4074, B=3986 → 4126
[TX032] Transfer $260: A=4074 → 3814, B=4126 → 4387
[TX033] Transfer $500: B=4386 → 3886, A=3814 → 4314
[TX034] Transfer $750: B=3886 → 3136, A=4314 → 5064
[TX035] Transfer $69: A=5064 → 4995, B=3136 → 3205
[TX036] Transfer $593: B=3205 → 2612, A=4995 → 5588
[TX037] Transfer $691: A=5588 → 4897, B=2612 → 3303
[TX038] Transfer $132: A=4897 → 4765, B=3303 → 3435
[TX039] Transfer $53: A=4765 → 4712, B=3435 → 3488
[TX040] Transfer $226: B=3488 → 3262, A=4712 → 4938
[TX041] Transfer $736: A=4938 → 4202, B=3262 → 3998
[TX042] Transfer $369: B=3998 → 3629, A=4202 → 4571
[TX043] Transfer $251: A=4571 → 4320, B=3629 → 3880
[TX044] Transfer $44: B=3880 → 3836, A=4320 → 4364
[TX045] Transfer $429: A=4364 → 3935, B=3836 → 4265
[TX046] Transfer $418: B=4265 → 3847, A=3935 → 4353
[TX047] Transfer $203: B=3847 → 3644, A=4353 → 4556
[TX048] Transfer $354: A=4556 → 4202, B=3644 → 3998
[TX049] Transfer $469: A=4202 → 3733, B=3998 → 4467
[TX050] Transfer $409: B=4467 → 4058, A=3733 → 4142
[TX051] Transfer $137: A=4142 → 4005, B=4058 → 4195
[TX052] Transfer $669: A=4005 → 3336, B=4195 → 4864
[TX053] Transfer $427: A=3336 → 2909, B=4864 → 5291
[TX054] Transfer $307: A=2909 → 2602, B=5291 → 5598
[TX055] Transfer $883: B=5598 → 4715, A=2602 → 3485
[TX056] Transfer $124: A=3485 → 3361, B=4715 → 4839
[TX057] Transfer $255: A=3361 → 3106, B=4839 → 5094
[TX058] Transfer $636: B=5094 → 4458, A=3106 → 3742
[TX059] Transfer $168: B=4458 → 4290, A=3742 → 3910
[TX060] Transfer $822: A=3910 → 3088, B=4290 → 5112
[TX061] Transfer $431: A=3088 → 2657, B=5112 → 5543
[TX062] Transfer $515: B=5543 → 5028, A=2657 → 3172
[TX063] Transfer $417: A=3172 → 2755, B=5028 → 5445
[TX064] Transfer $863: B=5445 → 4582, A=2755 → 3618
[TX065] Transfer $978: B=4582 → 3604, A=3618 → 4596
[TX066] Transfer $241: A=4596 → 4355, B=3604 → 3845
[TX067] Transfer $88: B=3845 → 3757, A=4355 → 4443
[TX068] Transfer $372: B=3757 → 3385, A=4443 → 4815
[TX069] Transfer $597: A=4815 → 4218, B=3385 → 3982
[TX070] Transfer $309: B=3982 → 3673, A=4218 → 4527
[TX071] Transfer $990: A=4527 → 3537, B=3673 → 4663
[TX072] Transfer $203: B=4663 → 4460, A=3537 → 3740
[TX073] Transfer $736: B=4460 → 3724, A=3740 → 4476
[TX074] Transfer $354: A=4476 → 4122, B=3724 → 4078
[TX075] Transfer $664: A=4122 → 3458, B=4078 → 4742
[TX076] Transfer $466: B=4742 → 4276, A=3458 → 3924
[TX077] Transfer $868: A=3924 → 3056, B=4276 → 5144
[TX078] Transfer $139: A=3056 → 2917, B=5144 → 5283
[TX079] Transfer $92: B=5283 → 5191, A=2917 → 3009
[TX080] Transfer $263: B=5191 → 4928, A=3009 → 3272
[TX081] Transfer $683: A=3272 → 2589, B=4928 → 5611
[TX082] Transfer $965: A=2589 → 1624, B=5611 → 6576
[TX083] Transfer $691: B=6576 → 5885, A=1624 → 2315
[TX084] Transfer $697: A=2315 → 1618, B=5885 → 6582
POSSIBLE BUG TYPES (choose exactly one):
- CALC_ERROR: Mathematical calculation is incorrect
- NEGATIVE_BAL: Account balance becomes negative
- LOST_UPDATE: Concurrent update causes lost transaction
- DUPLICATE_TXN: Same transaction processed multiple times
Identify the SINGLE bug if any exists.
Respond with ONLY a JSON object:
{"bug_type": "<type>", "bug_location": "<TX_ID>"
Your response:
|
CALC_ERROR
|
TX032
|
Mathematical calculation is incorrect
|
CALC_ERROR
| 84
|
{"bug_type": "CALC_ERROR", "bug_location": "TX032", "explanation": "Mathematical calculation is incorrect"}
|
{"bug_type": "CALC_ERROR", "n_ops": 84}
|
15
|
Analyze this banking transaction log for bugs.
Each operation shows the complete state change.
INITIAL STATE:
{
"account_A": 4000,
"account_B": 4200,
"total": 8200
}
RULES:
1. Total money must remain constant (conservation)
2. No account can go negative
3. All calculations must be mathematically correct
TRANSACTION LOG:
[TX001] Transfer $302: B=4200 → 3898, A=4000 → 4302
[TX002] Transfer $576: A=4302 → 3726, B=3898 → 4474
[TX003] Transfer $686: A=3726 → 3040, B=4474 → 5160
[TX004] Transfer $248: B=5160 → 4912, A=3040 → 3288
[TX005] Transfer $700: A=3288 → 2588, B=4912 → 5612
[TX006] Transfer $939: B=5612 → 4673, A=2588 → 3527
[TX007] Transfer $264: A=3527 → 3263, B=4673 → 4937
[TX008] Transfer $935: B=4937 → 4002, A=3263 → 4198
[TX009] Transfer $500: B=4002 → 3502, A=4198 → 4698
[TX010] Transfer $921: A=4698 → 3777, B=3502 → 4423
[TX011] Transfer $528: A=3777 → 3249, B=4423 → 4951
[TX012] Transfer $173: A=3249 → 3076, B=4951 → 5124
[TX013] Transfer $217: A=3076 → 2859, B=5124 → 5341
[TX014] Transfer $857: A=2859 → 2002, B=5341 → 6198
[TX015] Transfer $552: A=2002 → 1450, B=6198 → 6750
[TX016] Transfer $766: B=6750 → 5984, A=1450 → 2216
[TX017] Transfer $472: A=2216 → 1744, B=5984 → 6456
[TX018] Transfer $91: B=6456 → 6365, A=1744 → 1835
[TX019] Transfer $184: A=1835 → 1651, B=6365 → 6549
[TX020] Transfer $590: B=6549 → 5959, A=1651 → 2241
[TX021] Transfer $419: A=2241 → 1822, B=5959 → 6378
[TX022] Transfer $647: B=6378 → 5731, A=1822 → 2469
[TX023] Transfer $325: B=5731 → 5406, A=2469 → 2794
[TX024] Transfer $691: A=2794 → 2103, B=5406 → 6097
[TX025] Transfer $658: A=2103 → 1445, B=6097 → 6755
[TX026] Transfer $719: A=1445 → 726, B=6755 → 7474
[TX027] Transfer $516: A=726 → 210, B=7474 → 7990
[TX028] Transfer $102: A=210 → 108, B=7990 → 8092
[TX029] Transfer $290: B=8092 → 7802, A=108 → 398
[TX030] Transfer $406: B=7802 → 7396, A=398 → 804
[TX031] Transfer $162: A=804 → 642, B=7396 → 7558
[TX032] Transfer $402: A=642 → 240, B=7558 → 7960
[TX033] Transfer $307: B=7960 → 7653, A=240 → 547
[TX034] Transfer $568: B=7653 → 7085, A=547 → 1115
[TX035] Transfer $44: A=1115 → 1071, B=7085 → 7129
[TX036] Transfer $552: A=1071 → 519, B=7129 → 7681
[TX037] Transfer $109: A=519 → 410, B=7681 → 7790
[TX038] Transfer $424: B=7790 → 7366, A=410 → 834
[TX039] Transfer $190: A=834 → 644, B=7366 → 7556
[TX040] Transfer $200: A=644 → 444, B=7556 → 7756
[TX041] Transfer $292: A=444 → 152, B=7756 → 8048
[TX042] Transfer $43: A=152 → 109, B=8048 → 8091
[TX043] Payment PAY1005: Transfer $4: A=109 → 105, B=8091 → 8095
[TX044] Transfer $2: A=105 → 103, B=8095 → 8097
[TX045] Transfer $3: A=103 → 100, B=8097 → 8100
[TX046] Transfer $689: B=8100 → 7411, A=100 → 789
[TX047] Transfer $293: A=789 → 496, B=7411 → 7704
[TX048] Transfer $164: A=496 → 332, B=7704 → 7868
[TX049] Transfer $338: B=7868 → 7530, A=332 → 670
[TX050] Transfer $581: B=7530 → 6949, A=670 → 1251
[TX051] Transfer $983: B=6949 → 5966, A=1251 → 2234
[TX052] Transfer $6: B=5966 → 5960, A=2234 → 2240
[TX053] Transfer $806: B=5960 → 5154, A=2240 → 3046
[TX054] Transfer $285: A=3046 → 2761, B=5154 → 5439
[TX055] Transfer $697: B=5439 → 4742, A=2761 → 3458
[TX056] Transfer $475: B=4742 → 4267, A=3458 → 3933
[TX057] Transfer $795: B=4267 → 3472, A=3933 → 4728
[TX058] Transfer $566: B=3472 → 2906, A=4728 → 5294
[TX059] Transfer $663: A=5294 → 4631, B=2906 → 3569
[TX060] Transfer $881: A=4631 → 3750, B=3569 → 4450
[TX061] Transfer $271: A=3750 → 3479, B=4450 → 4721
[TX062] Transfer $915: A=3479 → 2564, B=4721 → 5636
[TX063] Transfer $834: A=2564 → 1730, B=5636 → 6470
[TX064] Transfer $930: B=6470 → 5540, A=1730 → 2660
[TX065] Payment PAY1005: Transfer $4: A=2660 → 2656, B=5540 → 5544
[TX066] Transfer $558: A=2656 → 2098, B=5544 → 6102
[TX067] Transfer $376: B=6102 → 5726, A=2098 → 2474
[TX068] Transfer $914: B=5726 → 4812, A=2474 → 3388
[TX069] Transfer $477: B=4812 → 4335, A=3388 → 3865
[TX070] Transfer $374: A=3865 → 3491, B=4335 → 4709
[TX071] Transfer $870: A=3491 → 2621, B=4709 → 5579
[TX072] Transfer $458: A=2621 → 2163, B=5579 → 6037
[TX073] Transfer $581: A=2163 → 1582, B=6037 → 6618
[TX074] Transfer $963: A=1582 → 619, B=6618 → 7581
[TX075] Transfer $226: B=7581 → 7355, A=619 → 845
[TX076] Transfer $66: B=7355 → 7289, A=845 → 911
[TX077] Transfer $241: B=7289 → 7048, A=911 → 1152
[TX078] Transfer $532: A=1152 → 620, B=7048 → 7580
[TX079] Transfer $482: B=7580 → 7098, A=620 → 1102
[TX080] Transfer $42: B=7098 → 7056, A=1102 → 1144
[TX081] Transfer $722: B=7056 → 6334, A=1144 → 1866
[TX082] Transfer $594: B=6334 → 5740, A=1866 → 2460
[TX083] Transfer $671: A=2460 → 1789, B=5740 → 6411
[TX084] Transfer $603: B=6411 → 5808, A=1789 → 2392
[TX085] Transfer $387: A=2392 → 2005, B=5808 → 6195
[TX086] Transfer $363: A=2005 → 1642, B=6195 → 6558
[TX087] Transfer $813: B=6558 → 5745, A=1642 → 2455
[TX088] Transfer $515: B=5745 → 5230, A=2455 → 2970
[TX089] Transfer $171: A=2970 → 2799, B=5230 → 5401
[TX090] Transfer $528: A=2799 → 2271, B=5401 → 5929
[TX091] Transfer $155: B=5929 → 5774, A=2271 → 2426
[TX092] Transfer $372: A=2426 → 2054, B=5774 → 6146
[TX093] Transfer $426: A=2054 → 1628, B=6146 → 6572
[TX094] Transfer $495: B=6572 → 6077, A=1628 → 2123
[TX095] Transfer $217: B=6077 → 5860, A=2123 → 2340
[TX096] Transfer $24: A=2340 → 2316, B=5860 → 5884
[TX097] Transfer $132: A=2316 → 2184, B=5884 → 6016
[TX098] Transfer $646: A=2184 → 1538, B=6016 → 6662
[TX099] Transfer $59: A=1538 → 1479, B=6662 → 6721
[TX100] Transfer $946: A=1479 → 533, B=6721 → 7667
POSSIBLE BUG TYPES (choose exactly one):
- CALC_ERROR: Mathematical calculation is incorrect
- NEGATIVE_BAL: Account balance becomes negative
- LOST_UPDATE: Concurrent update causes lost transaction
- DUPLICATE_TXN: Same transaction processed multiple times
Identify the SINGLE bug if any exists.
Respond with ONLY a JSON object:
{"bug_type": "<type>", "bug_location": "<TX_ID>"
Your response:
|
DUPLICATE_TXN
|
TX065
|
Payment PAY1005 processed twice
|
DUPLICATE_TXN
| 100
|
{"bug_type": "DUPLICATE_TXN", "bug_location": "TX065", "explanation": "Payment PAY1005 processed twice"}
|
{"bug_type": "DUPLICATE_TXN", "n_ops": 100}
|
78
|
Analyze this banking transaction log for bugs.
Each operation shows the complete state change.
INITIAL STATE:
{
"account_A": 4000,
"account_B": 4200,
"total": 8200
}
RULES:
1. Total money must remain constant (conservation)
2. No account can go negative
3. All calculations must be mathematically correct
TRANSACTION LOG:
[TX001] Transfer $713: B=4200 → 3487, A=4000 → 4713
[TX002] Transfer $958: A=4713 → 3755, B=3487 → 4445
[TX003] Transfer $34: A=3755 → 3721, B=4445 → 4479
[TX004] Transfer $402: B=4479 → 4077, A=3721 → 4123
[TX005] Transfer $73: B=4077 → 4004, A=4123 → 4196
[TX006] Transfer $421: B=4004 → 3583, A=4196 → 4617
[TX007] Transfer $349: A=4617 → 4268, B=3583 → 3932
[TX008] Transfer $621: B=3932 → 3311, A=4268 → 4889
[TX009] Transfer $63: B=3311 → 3248, A=4889 → 4952
[TX010] Transfer $251: A=4952 → 4701, B=3248 → 3499
[TX011] Transfer $980: A=4701 → 3721, B=3499 → 4479
[TX012] Transfer $819: A=3721 → 2902, B=4479 → 5298
[TX013] Transfer $632: B=5298 → 4666, A=2902 → 3534
[TX014] Transfer $196: B=4666 → 4470, A=3534 → 3730
[TX015] Transfer $177: A=3730 → 3553, B=4470 → 4647
[TX016] Transfer $113: A=3553 → 3440, B=4647 → 4760
[TX017] Transfer $581: A=3440 → 2859, B=4760 → 5341
[TX018] Transfer $907: A=2859 → 1952, B=5341 → 6248
[TX019] Transfer $509: A=1952 → 1443, B=6248 → 6757
[TX020] Transfer $124: A=1443 → 1319, B=6757 → 6881
[TX021] Transfer $325: A=1319 → 994, B=6881 → 7206
[TX022] Transfer $813: B=7206 → 6393, A=994 → 1807
[TX023] Transfer $115: A=1807 → 1692, B=6393 → 6508
[TX024] Transfer $487: A=1692 → 1205, B=6508 → 6995
[TX025] Transfer $264: A=1205 → 941, B=6995 → 7259
[TX026] Transfer $418: B=7259 → 6841, A=941 → 1359
[TX027] Transfer $846: A=1359 → 513, B=6841 → 7687
[TX028] Transfer $152: A=513 → 361, B=7687 → 7839
[TX029] Transfer $186: A=361 → 175, B=7839 → 8025
[TX030] Transfer $52: A=175 → 123, B=8025 → 8077
[TX031] Transfer $12: A=123 → 111, B=8077 → 8089
[TX032] Transfer $11: A=111 → 100, B=8089 → 8100
[TX033] Transfer $147: B=8100 → 7953, A=100 → 247
[TX034] Transfer $80: A=247 → 167, B=7953 → 8033
[TX035] Transfer $906: B=8033 → 7127, A=167 → 1073
[TX036] Transfer $633: A=1073 → 440, B=7127 → 7760
[TX037] Transfer $95: A=440 → 345, B=7760 → 7855
[TX038] Transfer $325: B=7855 → 7530, A=345 → 670
[TX039] Transfer $135: A=670 → 535, B=7530 → 7665
[TX040] Transfer $82: B=7665 → 7583, A=535 → 617
[TX041] Transfer $739: B=7583 → 6844, A=617 → 1356
[TX042] Transfer $278: A=1356 → 1078, B=6844 → 7122
[TX043] Transfer $600: B=7122 → 6522, A=1078 → 1678
[TX044] Transfer $393: B=6522 → 6129, A=1678 → 2071
[TX045] Transfer $110: A=2071 → 1961, B=6129 → 6239
[TX046] Transfer $329: A=1961 → 1632, B=6239 → 6568
[TX047] Transfer $826: A=1632 → 806, B=6568 → 7394
[TX048] Transfer $777: B=7394 → 6617, A=806 → 1583
[TX049] Transfer $263: B=6617 → 6354, A=1583 → 1846
[TX050] Transfer $812: B=6354 → 5542, A=1846 → 2658
[TX051] Transfer $221: B=5542 → 5321, A=2658 → 2879
[TX052] Transfer $62: B=5321 → 5259, A=2879 → 2941
[TX053] Transfer $321: A=2941 → 2620, B=5259 → 5580
[TX054] Transfer $26: B=5580 → 5554, A=2620 → 2646
[TX055] Transfer $842: A=2646 → 1804, B=5554 → 6396
[TX056] Transfer $587: A=1804 → 1217, B=6396 → 6983
[TX057] Transfer $300: A=1217 → 917, B=6983 → 7283
[TX058] Transfer $449: A=917 → 468, B=7283 → 7732
[TX059] Transfer $53: B=7732 → 7679, A=468 → 521
[TX060] Transfer $404: B=7679 → 7275, A=521 → 925
[TX061] Transfer $806: A=925 → 119, B=7275 → 8081
[TX062] Transfer $287: B=8081 → 7794, A=119 → 406
[TX063] Transfer $278: B=7794 → 7516, A=406 → 684
[TX064] Transfer $518: B=7516 → 6998, A=684 → 1202
[TX065] Transfer $231: A=1202 → 971, B=6998 → 7229
[TX066] Transfer $282: B=7229 → 6947, A=971 → 1253
[TX067] Transfer $153: B=6947 → 6794, A=1253 → 1406
[TX068] Transfer $69: A=1406 → 1337, B=6794 → 6863
[TX069] Transfer $763: A=1337 → 574, B=6863 → 7626
[TX070] Transfer $889: B=7626 → 6737, A=574 → 1463
[TX071] Transfer $926: A=1463 → 537, B=6737 → 7665
[TX072] Transfer $391: A=537 → 146, B=7663 → 8054
[TX073] Transfer $5: A=146 → 141, B=8054 → 8059
[TX074] Transfer $37: A=141 → 104, B=8059 → 8096
[TX075] Transfer $814: B=8096 → 7282, A=104 → 918
[TX076] Transfer $466: B=7282 → 6816, A=918 → 1384
[TX077] Transfer $628: A=1384 → 756, B=6816 → 7444
[TX078] Transfer $530: A=756 → 226, B=7444 → 7974
[TX079] Transfer $34: A=226 → 192, B=7974 → 8008
[TX080] Transfer $2: A=192 → 190, B=8008 → 8010
[TX081] Transfer $51: A=190 → 139, B=8010 → 8061
[TX082] Transfer $10: A=139 → 129, B=8061 → 8071
[TX083] Transfer $958: B=8071 → 7113, A=129 → 1087
[TX084] Transfer $759: B=7113 → 6354, A=1087 → 1846
[TX085] Transfer $11: A=1846 → 1835, B=6354 → 6365
[TX086] Transfer $558: B=6365 → 5807, A=1835 → 2393
[TX087] Transfer $493: A=2393 → 1900, B=5807 → 6300
[TX088] Transfer $252: B=6300 → 6048, A=1900 → 2152
[TX089] Transfer $25: A=2152 → 2127, B=6048 → 6073
[TX090] Transfer $257: B=6073 → 5816, A=2127 → 2384
[TX091] Transfer $913: B=5816 → 4903, A=2384 → 3297
[TX092] Transfer $977: A=3297 → 2320, B=4903 → 5880
[TX093] Transfer $953: B=5880 → 4927, A=2320 → 3273
[TX094] Transfer $327: A=3273 → 2946, B=4927 → 5254
[TX095] Transfer $712: A=2946 → 2234, B=5254 → 5966
POSSIBLE BUG TYPES (choose exactly one):
- CALC_ERROR: Mathematical calculation is incorrect
- NEGATIVE_BAL: Account balance becomes negative
- LOST_UPDATE: Concurrent update causes lost transaction
- DUPLICATE_TXN: Same transaction processed multiple times
Identify the SINGLE bug if any exists.
Respond with ONLY a JSON object:
{"bug_type": "<type>", "bug_location": "<TX_ID>"
Your response:
|
CALC_ERROR
|
TX071
|
Mathematical calculation is incorrect
|
CALC_ERROR
| 95
|
{"bug_type": "CALC_ERROR", "bug_location": "TX071", "explanation": "Mathematical calculation is incorrect"}
|
{"bug_type": "CALC_ERROR", "n_ops": 95}
|
73
|
Analyze this banking transaction log for bugs.
Each operation shows the complete state change.
INITIAL STATE:
{
"account_A": 4000,
"account_B": 4200,
"total": 8200
}
RULES:
1. Total money must remain constant (conservation)
2. No account can go negative
3. All calculations must be mathematically correct
TRANSACTION LOG:
[TX001] Transfer $199: B=4200 → 4001, A=4000 → 4199
[TX002] Transfer $381: B=4001 → 3620, A=4199 → 4580
[TX003] Transfer $821: B=3620 → 2799, A=4580 → 5401
[TX004] Transfer $40: A=5401 → 5361, B=2799 → 2839
[TX005] Transfer $45: A=5361 → 5316, B=2839 → 2884
[TX006] Transfer $582: B=2884 → 2302, A=5316 → 5898
[TX007] Transfer $392: B=2302 → 1910, A=5898 → 6290
[TX008] Transfer $742: A=6290 → 5548, B=1910 → 2652
[TX009] Transfer $844: A=5548 → 4704, B=2652 → 3496
[TX010] Transfer $920: A=4704 → 3784, B=3496 → 4416
[TX011] Transfer $141: B=4416 → 4275, A=3784 → 3925
[TX012] Transfer $753: A=3925 → 3172, B=4275 → 5028
[TX013] Transfer $881: B=5028 → 4147, A=3172 → 4053
[TX014] Transfer $543: B=4147 → 3604, A=4053 → 4596
[TX015] Transfer $340: B=3604 → 3264, A=4596 → 4936
[TX016] Transfer $988: B=3264 → 2276, A=4936 → 5924
[TX017] Transfer $996: A=5924 → 4928, B=2276 → 3272
[TX018] Transfer $969: A=4928 → 3959, B=3272 → 4241
[TX019] Transfer $724: A=3959 → 3235, B=4241 → 4965
[TX020] Transfer $195: B=4965 → 4770, A=3235 → 3430
[TX021] Transfer $408: B=4770 → 4362, A=3430 → 3838
[TX022] Transfer $88: B=4362 → 4274, A=3838 → 3926
[TX023] Transfer $958: A=3926 → 2968, B=4274 → 5232
[TX024] Transfer $908: B=5232 → 4324, A=2968 → 3876
[TX025] Transfer $913: A=3876 → 2963, B=4324 → 5237
[TX026] Transfer $850: A=2963 → 2113, B=5237 → 6087
[TX027] Transfer $957: B=6087 → 5130, A=2113 → 3070
[TX028] Transfer $880: A=3070 → 2190, B=5130 → 6010
[TX029] Transfer $319: A=2190 → 1871, B=6010 → 6329
[TX030] Transfer $189: B=6329 → 6140, A=1871 → 2060
[TX031] Payment PAY1020: Transfer $214: B=6140 → 5926, A=2060 → 2274
[TX032] Transfer $310: A=2274 → 1964, B=5926 → 6236
[TX033] Transfer $733: A=1964 → 1231, B=6236 → 6969
[TX034] Transfer $802: B=6969 → 6167, A=1231 → 2033
[TX035] Transfer $567: A=2033 → 1466, B=6167 → 6734
[TX036] Transfer $584: B=6734 → 6150, A=1466 → 2050
[TX037] Transfer $773: B=6150 → 5377, A=2050 → 2823
[TX038] Transfer $909: A=2823 → 1914, B=5377 → 6286
[TX039] Transfer $450: A=1914 → 1464, B=6286 → 6736
[TX040] Transfer $478: B=6736 → 6258, A=1464 → 1942
[TX041] Transfer $40: B=6258 → 6218, A=1942 → 1982
[TX042] Transfer $863: B=6218 → 5355, A=1982 → 2845
[TX043] Transfer $160: B=5355 → 5195, A=2845 → 3005
[TX044] Transfer $971: A=3005 → 2034, B=5195 → 6166
[TX045] Transfer $167: A=2034 → 1867, B=6166 → 6333
[TX046] Transfer $402: B=6333 → 5931, A=1867 → 2269
[TX047] Transfer $461: B=5931 → 5470, A=2269 → 2730
[TX048] Transfer $205: B=5470 → 5265, A=2730 → 2935
[TX049] Transfer $534: A=2935 → 2401, B=5265 → 5799
[TX050] Transfer $11: A=2401 → 2390, B=5799 → 5810
[TX051] Transfer $139: A=2390 → 2251, B=5810 → 5949
[TX052] Transfer $589: B=5949 → 5360, A=2251 → 2840
[TX053] Transfer $211: A=2840 → 2629, B=5360 → 5571
[TX054] Transfer $24: A=2629 → 2605, B=5571 → 5595
[TX055] Transfer $261: A=2605 → 2344, B=5595 → 5856
[TX056] Transfer $453: B=5856 → 5403, A=2344 → 2797
[TX057] Transfer $688: A=2797 → 2109, B=5403 → 6091
[TX058] Transfer $375: B=6091 → 5716, A=2109 → 2484
[TX059] Transfer $878: A=2484 → 1606, B=5716 → 6594
[TX060] Transfer $796: B=6594 → 5798, A=1606 → 2402
[TX061] Transfer $770: B=5798 → 5028, A=2402 → 3172
[TX062] Transfer $922: B=5028 → 4106, A=3172 → 4094
[TX063] Transfer $286: A=4094 → 3808, B=4106 → 4392
[TX064] Transfer $59: B=4392 → 4333, A=3808 → 3867
[TX065] Transfer $934: A=3867 → 2933, B=4333 → 5267
[TX066] Transfer $837: A=2933 → 2096, B=5267 → 6104
[TX067] Transfer $242: B=6104 → 5862, A=2096 → 2338
[TX068] Transfer $279: A=2338 → 2059, B=5862 → 6141
[TX069] Transfer $132: A=2059 → 1927, B=6141 → 6273
[TX070] Transfer $71: B=6273 → 6202, A=1927 → 1998
[TX071] Transfer $467: A=1998 → 1531, B=6202 → 6669
[TX072] Transfer $679: A=1531 → 852, B=6669 → 7348
[TX073] Payment PAY1020: Transfer $214: B=7348 → 7134, A=852 → 1066
[TX074] Transfer $55: A=1066 → 1011, B=7134 → 7189
[TX075] Transfer $451: B=7189 → 6738, A=1011 → 1462
[TX076] Transfer $678: B=6738 → 6060, A=1462 → 2140
[TX077] Transfer $853: B=6060 → 5207, A=2140 → 2993
[TX078] Transfer $330: B=5207 → 4877, A=2993 → 3323
[TX079] Transfer $110: B=4877 → 4767, A=3323 → 3433
[TX080] Transfer $53: A=3433 → 3380, B=4767 → 4820
[TX081] Transfer $657: B=4820 → 4163, A=3380 → 4037
[TX082] Transfer $159: A=4037 → 3878, B=4163 → 4322
[TX083] Transfer $349: B=4322 → 3973, A=3878 → 4227
[TX084] Transfer $161: A=4227 → 4066, B=3973 → 4134
[TX085] Transfer $823: B=4134 → 3311, A=4066 → 4889
[TX086] Transfer $405: B=3311 → 2906, A=4889 → 5294
[TX087] Transfer $938: B=2906 → 1968, A=5294 → 6232
[TX088] Transfer $499: A=6232 → 5733, B=1968 → 2467
[TX089] Transfer $464: A=5733 → 5269, B=2467 → 2931
[TX090] Transfer $104: A=5269 → 5165, B=2931 → 3035
[TX091] Transfer $90: A=5165 → 5075, B=3035 → 3125
[TX092] Transfer $545: A=5075 → 4530, B=3125 → 3670
[TX093] Transfer $243: B=3670 → 3427, A=4530 → 4773
[TX094] Transfer $828: B=3427 → 2599, A=4773 → 5601
[TX095] Transfer $467: A=5601 → 5134, B=2599 → 3066
[TX096] Transfer $300: A=5134 → 4834, B=3066 → 3366
[TX097] Transfer $614: A=4834 → 4220, B=3366 → 3980
[TX098] Transfer $108: A=4220 → 4112, B=3980 → 4088
[TX099] Transfer $184: B=4088 → 3904, A=4112 → 4296
[TX100] Transfer $507: B=3904 → 3397, A=4296 → 4803
[TX101] Transfer $181: A=4803 → 4622, B=3397 → 3578
[TX102] Transfer $970: A=4622 → 3652, B=3578 → 4548
[TX103] Transfer $257: B=4548 → 4291, A=3652 → 3909
[TX104] Transfer $188: A=3909 → 3721, B=4291 → 4479
[TX105] Transfer $371: A=3721 → 3350, B=4479 → 4850
[TX106] Transfer $149: B=4850 → 4701, A=3350 → 3499
[TX107] Transfer $182: A=3499 → 3317, B=4701 → 4883
[TX108] Transfer $703: B=4883 → 4180, A=3317 → 4020
[TX109] Transfer $872: B=4180 → 3308, A=4020 → 4892
[TX110] Transfer $759: A=4892 → 4133, B=3308 → 4067
[TX111] Transfer $209: A=4133 → 3924, B=4067 → 4276
[TX112] Transfer $311: B=4276 → 3965, A=3924 → 4235
[TX113] Transfer $314: B=3965 → 3651, A=4235 → 4549
POSSIBLE BUG TYPES (choose exactly one):
- CALC_ERROR: Mathematical calculation is incorrect
- NEGATIVE_BAL: Account balance becomes negative
- LOST_UPDATE: Concurrent update causes lost transaction
- DUPLICATE_TXN: Same transaction processed multiple times
Identify the SINGLE bug if any exists.
Respond with ONLY a JSON object:
{"bug_type": "<type>", "bug_location": "<TX_ID>"
Your response:
|
DUPLICATE_TXN
|
TX073
|
Payment PAY1020 processed twice
|
DUPLICATE_TXN
| 113
|
{"bug_type": "DUPLICATE_TXN", "bug_location": "TX073", "explanation": "Payment PAY1020 processed twice"}
|
{"bug_type": "DUPLICATE_TXN", "n_ops": 113}
|
10
|
Analyze this banking transaction log for bugs.
Each operation shows the complete state change.
INITIAL STATE:
{
"account_A": 4000,
"account_B": 4200,
"total": 8200
}
RULES:
1. Total money must remain constant (conservation)
2. No account can go negative
3. All calculations must be mathematically correct
TRANSACTION LOG:
[TX001] Transfer $816: A=4000 → 3184, B=4200 → 5016
[TX002] Transfer $35: A=3184 → 3149, B=5016 → 5051
[TX003] Transfer $552: B=5051 → 4499, A=3149 → 3701
[TX004] Transfer $801: B=4499 → 3698, A=3701 → 4502
[TX005] Transfer $564: B=3698 → 3134, A=4502 → 5066
[TX006] Transfer $276: A=5066 → 4790, B=3134 → 3410
[TX007] Transfer $780: B=3410 → 2630, A=4790 → 5570
[TX008] Transfer $437: B=2630 → 2193, A=5570 → 6007
[TX009] Transfer $306: A=6007 → 5701, B=2193 → 2499
[TX010] Transfer $271: A=5701 → 5430, B=2499 → 2770
[TX011] Transfer $451: B=2770 → 2319, A=5430 → 5881
[TX012] Transfer $216: A=5881 → 5665, B=2319 → 2535
[TX013] Transfer $171: B=2535 → 2364, A=5665 → 5836
[TX014] Transfer $835: A=5836 → 5001, B=2364 → 3199
[TX015] Transfer $585: A=5001 → 4416, B=3199 → 3784
[TX016] Transfer $613: B=3784 → 3171, A=4416 → 5029
[TX017] Transfer $722: A=5029 → 4307, B=3171 → 3893
[TX018] Transfer $588: B=3893 → 3305, A=4307 → 4895
[TX019] Transfer $140: B=3305 → 3165, A=4895 → 5035
[TX020] Transfer $285: B=3165 → 2880, A=5035 → 5320
[TX021] Transfer $257: A=5320 → 5063, B=2880 → 3137
[TX022] Transfer $850: A=5063 → 4213, B=3137 → 3987
[TX023] Transfer $4229: A=4213 → -16, B=3987 → 8216
[TX024] Balance check: A=-16
[TX025] Transfer $464: B=8216 → 7752, A=-16 → 448
[TX026] Transfer $208: A=448 → 240, B=7752 → 7960
[TX027] Transfer $467: B=7960 → 7493, A=240 → 707
[TX028] Transfer $597: B=7493 → 6896, A=707 → 1304
[TX029] Transfer $750: A=1304 → 554, B=6896 → 7646
[TX030] Transfer $872: B=7646 → 6774, A=554 → 1426
[TX031] Transfer $225: A=1426 → 1201, B=6774 → 6999
[TX032] Transfer $508: B=6999 → 6491, A=1201 → 1709
[TX033] Transfer $850: B=6491 → 5641, A=1709 → 2559
[TX034] Transfer $562: B=5641 → 5079, A=2559 → 3121
[TX035] Transfer $809: A=3121 → 2312, B=5079 → 5888
[TX036] Transfer $49: B=5888 → 5839, A=2312 → 2361
[TX037] Transfer $18: A=2361 → 2343, B=5839 → 5857
[TX038] Transfer $453: A=2343 → 1890, B=5857 → 6310
[TX039] Transfer $983: B=6310 → 5327, A=1890 → 2873
[TX040] Transfer $707: B=5327 → 4620, A=2873 → 3580
[TX041] Transfer $164: A=3580 → 3416, B=4620 → 4784
[TX042] Transfer $672: B=4784 → 4112, A=3416 → 4088
[TX043] Transfer $86: B=4112 → 4026, A=4088 → 4174
[TX044] Transfer $55: B=4026 → 3971, A=4174 → 4229
[TX045] Transfer $745: B=3971 → 3226, A=4229 → 4974
[TX046] Transfer $673: A=4974 → 4301, B=3226 → 3899
[TX047] Transfer $3: A=4301 → 4298, B=3899 → 3902
[TX048] Transfer $81: A=4298 → 4217, B=3902 → 3983
[TX049] Transfer $533: A=4217 → 3684, B=3983 → 4516
[TX050] Transfer $10: B=4516 → 4506, A=3684 → 3694
[TX051] Transfer $882: B=4506 → 3624, A=3694 → 4576
[TX052] Transfer $491: B=3624 → 3133, A=4576 → 5067
[TX053] Transfer $394: A=5067 → 4673, B=3133 → 3527
[TX054] Transfer $107: A=4673 → 4566, B=3527 → 3634
[TX055] Transfer $904: B=3634 → 2730, A=4566 → 5470
[TX056] Transfer $393: B=2730 → 2337, A=5470 → 5863
[TX057] Transfer $72: A=5863 → 5791, B=2337 → 2409
[TX058] Transfer $452: A=5791 → 5339, B=2409 → 2861
[TX059] Transfer $645: B=2861 → 2216, A=5339 → 5984
[TX060] Transfer $632: A=5984 → 5352, B=2216 → 2848
[TX061] Transfer $90: B=2848 → 2758, A=5352 → 5442
[TX062] Transfer $772: A=5442 → 4670, B=2758 → 3530
[TX063] Transfer $361: A=4670 → 4309, B=3530 → 3891
[TX064] Transfer $812: B=3891 → 3079, A=4309 → 5121
[TX065] Transfer $285: A=5121 → 4836, B=3079 → 3364
[TX066] Transfer $568: A=4836 → 4268, B=3364 → 3932
[TX067] Transfer $870: B=3932 → 3062, A=4268 → 5138
[TX068] Transfer $532: B=3062 → 2530, A=5138 → 5670
[TX069] Transfer $304: A=5670 → 5366, B=2530 → 2834
[TX070] Transfer $508: A=5366 → 4858, B=2834 → 3342
[TX071] Transfer $248: B=3342 → 3094, A=4858 → 5106
[TX072] Transfer $542: B=3094 → 2552, A=5106 → 5648
[TX073] Transfer $958: A=5648 → 4690, B=2552 → 3510
[TX074] Transfer $398: B=3510 → 3112, A=4690 → 5088
[TX075] Transfer $561: B=3112 → 2551, A=5088 → 5649
[TX076] Transfer $979: A=5649 → 4670, B=2551 → 3530
[TX077] Transfer $603: A=4670 → 4067, B=3530 → 4133
[TX078] Transfer $270: A=4067 → 3797, B=4133 → 4403
[TX079] Transfer $946: A=3797 → 2851, B=4403 → 5349
[TX080] Transfer $520: A=2851 → 2331, B=5349 → 5869
[TX081] Transfer $435: B=5869 → 5434, A=2331 → 2766
[TX082] Transfer $657: B=5434 → 4777, A=2766 → 3423
[TX083] Transfer $87: A=3423 → 3336, B=4777 → 4864
[TX084] Transfer $525: B=4864 → 4339, A=3336 → 3861
[TX085] Transfer $551: A=3861 → 3310, B=4339 → 4890
[TX086] Transfer $602: B=4890 → 4288, A=3310 → 3912
[TX087] Transfer $717: A=3912 → 3195, B=4288 → 5005
[TX088] Transfer $61: B=5005 → 4944, A=3195 → 3256
[TX089] Transfer $948: A=3256 → 2308, B=4944 → 5892
[TX090] Transfer $466: B=5892 → 5426, A=2308 → 2774
[TX091] Transfer $684: A=2774 → 2090, B=5426 → 6110
[TX092] Transfer $14: A=2090 → 2076, B=6110 → 6124
[TX093] Transfer $169: A=2076 → 1907, B=6124 → 6293
[TX094] Transfer $537: B=6293 → 5756, A=1907 → 2444
[TX095] Transfer $382: B=5756 → 5374, A=2444 → 2826
[TX096] Transfer $752: A=2826 → 2074, B=5374 → 6126
[TX097] Transfer $345: A=2074 → 1729, B=6126 → 6471
[TX098] Transfer $538: B=6471 → 5933, A=1729 → 2267
[TX099] Transfer $731: A=2267 → 1536, B=5933 → 6664
[TX100] Transfer $468: A=1536 → 1068, B=6664 → 7132
POSSIBLE BUG TYPES (choose exactly one):
- CALC_ERROR: Mathematical calculation is incorrect
- NEGATIVE_BAL: Account balance becomes negative
- LOST_UPDATE: Concurrent update causes lost transaction
- DUPLICATE_TXN: Same transaction processed multiple times
Identify the SINGLE bug if any exists.
Respond with ONLY a JSON object:
{"bug_type": "<type>", "bug_location": "<TX_ID>"
Your response:
|
NEGATIVE_BAL
|
TX023
|
Account balance goes negative
|
NEGATIVE_BAL
| 100
|
{"bug_type": "NEGATIVE_BAL", "bug_location": "TX023", "explanation": "Account balance goes negative"}
|
{"bug_type": "NEGATIVE_BAL", "n_ops": 100}
|
55
|
Analyze this banking transaction log for bugs.
Each operation shows the complete state change.
INITIAL STATE:
{
"account_A": 4000,
"account_B": 4200,
"total": 8200
}
RULES:
1. Total money must remain constant (conservation)
2. No account can go negative
3. All calculations must be mathematically correct
TRANSACTION LOG:
[TX001] Transfer $274: B=4200 → 3926, A=4000 → 4274
[TX002] Transfer $645: A=4274 → 3629, B=3926 → 4571
[TX003] Transfer $489: B=4571 → 4082, A=3629 → 4118
[TX004] Transfer $322: B=4082 → 3760, A=4118 → 4440
[TX005] Transfer $187: A=4440 → 4253, B=3760 → 3947
[TX006] Transfer $780: A=4253 → 3473, B=3947 → 4727
[TX007] Transfer $869: A=3473 → 2604, B=4727 → 5596
[TX008] Transfer $112: A=2604 → 2492, B=5596 → 5708
[TX009] Transfer $804: B=5708 → 4904, A=2492 → 3296
[TX010] Transfer $211: A=3296 → 3085, B=4904 → 5115
[TX011] Transfer $12: A=3085 → 3073, B=5115 → 5127
[TX012] Transfer $641: A=3073 → 2432, B=5127 → 5768
[TX013] Transfer $442: B=5768 → 5326, A=2432 → 2874
[TX014] Transfer $227: A=2874 → 2647, B=5326 → 5553
[TX015] Transfer $862: B=5553 → 4691, A=2647 → 3509
[TX016] Transfer $25: A=3509 → 3484, B=4691 → 4716
[TX017] Transfer $177: B=4716 → 4539, A=3484 → 3661
[TX018] Transfer $556: B=4539 → 3983, A=3661 → 4217
[TX019] Transfer $95: A=4217 → 4122, B=3983 → 4078
[TX020] Transfer $129: B=4078 → 3949, A=4122 → 4251
[TX021] Transfer $867: A=4251 → 3384, B=3949 → 4816
[TX022] Transfer $249: B=4816 → 4567, A=3384 → 3633
[TX023] Transfer $915: B=4567 → 3652, A=3633 → 4548
[TX024] Transfer $288: A=4548 → 4260, B=3652 → 3940
[TX025] Transfer $246: A=4260 → 4014, B=3940 → 4186
[TX026] Transfer $595: B=4186 → 3591, A=4014 → 4609
[TX027] Transfer $220: B=3591 → 3371, A=4609 → 4829
[TX028] Transfer $869: A=4829 → 3960, B=3371 → 4240
[TX029] Transfer $731: A=3960 → 3229, B=4240 → 4971
[TX030] Transfer $155: B=4971 → 4816, A=3229 → 3384
[TX031] Transfer $25: B=4816 → 4791, A=3384 → 3409
[TX032] Transfer $904: B=4791 → 3887, A=3409 → 4313
[TX033] Transfer $810: B=3887 → 3077, A=4313 → 5123
[TX034] Transfer $23: B=3077 → 3054, A=5123 → 5146
[TX035] Transfer $860: B=3054 → 2194, A=5146 → 6006
[TX036] Thread T1: READ B=2194
[TX037] Thread T2: READ B=2194
[TX038] Thread T1: COMMIT B=2194 → 2092
[TX039] Thread T2: COMMIT B=2194 → 2049
[TX040] Transfer $617: A=6006 → 5389, B=2049 → 2666
[TX041] Transfer $808: B=2666 → 1858, A=5389 → 6197
[TX042] Transfer $225: B=1858 → 1633, A=6197 → 6422
[TX043] Transfer $416: B=1633 → 1217, A=6422 → 6838
[TX044] Transfer $734: B=1217 → 483, A=6838 → 7572
[TX045] Transfer $196: B=483 → 287, A=7572 → 7768
[TX046] Transfer $177: B=287 → 110, A=7768 → 7945
[TX047] Transfer $465: A=7945 → 7480, B=110 → 575
[TX048] Transfer $587: A=7480 → 6893, B=575 → 1162
[TX049] Transfer $392: B=1162 → 770, A=6893 → 7285
[TX050] Transfer $448: A=7285 → 6837, B=770 → 1218
[TX051] Transfer $93: B=1218 → 1125, A=6837 → 6930
[TX052] Transfer $358: B=1125 → 767, A=6930 → 7288
[TX053] Transfer $377: A=7288 → 6911, B=767 → 1144
[TX054] Transfer $163: B=1144 → 981, A=6911 → 7074
[TX055] Transfer $876: A=7074 → 6198, B=981 → 1857
[TX056] Transfer $392: A=6198 → 5806, B=1857 → 2249
[TX057] Transfer $780: B=2249 → 1469, A=5806 → 6586
[TX058] Transfer $726: A=6586 → 5860, B=1469 → 2195
[TX059] Transfer $632: A=5860 → 5228, B=2195 → 2827
[TX060] Transfer $83: A=5228 → 5145, B=2827 → 2910
[TX061] Transfer $154: B=2910 → 2756, A=5145 → 5299
[TX062] Transfer $881: B=2756 → 1875, A=5299 → 6180
[TX063] Transfer $893: B=1875 → 982, A=6180 → 7073
[TX064] Transfer $421: A=7073 → 6652, B=982 → 1403
[TX065] Transfer $535: B=1403 → 868, A=6652 → 7187
[TX066] Transfer $894: A=7187 → 6293, B=868 → 1762
[TX067] Transfer $588: A=6293 → 5705, B=1762 → 2350
[TX068] Transfer $563: A=5705 → 5142, B=2350 → 2913
[TX069] Transfer $918: B=2913 → 1995, A=5142 → 6060
[TX070] Transfer $19: A=6060 → 6041, B=1995 → 2014
[TX071] Transfer $70: A=6041 → 5971, B=2014 → 2084
[TX072] Transfer $838: A=5971 → 5133, B=2084 → 2922
[TX073] Transfer $799: A=5133 → 4334, B=2922 → 3721
[TX074] Transfer $742: B=3721 → 2979, A=4334 → 5076
[TX075] Transfer $548: A=5076 → 4528, B=2979 → 3527
[TX076] Transfer $807: A=4528 → 3721, B=3527 → 4334
[TX077] Transfer $877: A=3721 → 2844, B=4334 → 5211
[TX078] Transfer $527: A=2844 → 2317, B=5211 → 5738
[TX079] Transfer $405: A=2317 → 1912, B=5738 → 6143
[TX080] Transfer $51: A=1912 → 1861, B=6143 → 6194
[TX081] Transfer $868: B=6194 → 5326, A=1861 → 2729
[TX082] Transfer $884: A=2729 → 1845, B=5326 → 6210
[TX083] Transfer $475: B=6210 → 5735, A=1845 → 2320
[TX084] Transfer $181: A=2320 → 2139, B=5735 → 5916
[TX085] Transfer $167: A=2139 → 1972, B=5916 → 6083
[TX086] Transfer $388: A=1972 → 1584, B=6083 → 6471
[TX087] Transfer $296: A=1584 → 1288, B=6471 → 6767
[TX088] Transfer $695: B=6767 → 6072, A=1288 → 1983
[TX089] Transfer $912: B=6072 → 5160, A=1983 → 2895
[TX090] Transfer $807: B=5160 → 4353, A=2895 → 3702
[TX091] Transfer $538: B=4353 → 3815, A=3702 → 4240
POSSIBLE BUG TYPES (choose exactly one):
- CALC_ERROR: Mathematical calculation is incorrect
- NEGATIVE_BAL: Account balance becomes negative
- LOST_UPDATE: Concurrent update causes lost transaction
- DUPLICATE_TXN: Same transaction processed multiple times
Identify the SINGLE bug if any exists.
Respond with ONLY a JSON object:
{"bug_type": "<type>", "bug_location": "<TX_ID>"
Your response:
|
LOST_UPDATE
|
TX039
|
Thread T2 overwrites T1's change
|
LOST_UPDATE
| 91
|
{"bug_type": "LOST_UPDATE", "bug_location": "TX039", "explanation": "Thread T2 overwrites T1's change"}
|
{"bug_type": "LOST_UPDATE", "n_ops": 91}
|
56
|
Analyze this banking transaction log for bugs.
Each operation shows the complete state change.
INITIAL STATE:
{
"account_A": 4000,
"account_B": 4200,
"total": 8200
}
RULES:
1. Total money must remain constant (conservation)
2. No account can go negative
3. All calculations must be mathematically correct
TRANSACTION LOG:
[TX001] Transfer $213: A=4000 → 3787, B=4200 → 4413
[TX002] Transfer $864: A=3787 → 2923, B=4413 → 5277
[TX003] Transfer $620: B=5277 → 4657, A=2923 → 3543
[TX004] Transfer $386: B=4657 → 4271, A=3543 → 3929
[TX005] Transfer $26: B=4271 → 4245, A=3929 → 3955
[TX006] Transfer $205: B=4245 → 4040, A=3955 → 4160
[TX007] Transfer $447: A=4160 → 3713, B=4040 → 4487
[TX008] Transfer $887: A=3713 → 2826, B=4487 → 5374
[TX009] Transfer $407: A=2826 → 2419, B=5374 → 5781
[TX010] Transfer $18: A=2419 → 2401, B=5781 → 5799
[TX011] Transfer $260: A=2401 → 2141, B=5799 → 6059
[TX012] Transfer $479: B=6059 → 5580, A=2141 → 2620
[TX013] Transfer $905: B=5580 → 4675, A=2620 → 3525
[TX014] Transfer $135: A=3525 → 3390, B=4675 → 4810
[TX015] Transfer $253: B=4810 → 4557, A=3390 → 3643
[TX016] Transfer $304: A=3643 → 3339, B=4557 → 4861
[TX017] Transfer $360: B=4861 → 4501, A=3339 → 3699
[TX018] Transfer $910: B=4501 → 3591, A=3699 → 4609
[TX019] Transfer $614: B=3591 → 2977, A=4609 → 5223
[TX020] Transfer $842: B=2977 → 2135, A=5223 → 6065
[TX021] Transfer $958: B=2135 → 1177, A=6065 → 7023
[TX022] Transfer $362: B=1177 → 815, A=7023 → 7385
[TX023] Transfer $319: B=815 → 496, A=7385 → 7704
[TX024] Transfer $105: A=7704 → 7599, B=496 → 601
[TX025] Transfer $63: A=7599 → 7536, B=601 → 664
[TX026] Transfer $647: A=7536 → 6889, B=664 → 1311
[TX027] Transfer $461: B=1311 → 850, A=6889 → 7350
[TX028] Transfer $629: B=850 → 221, A=7350 → 7979
[TX029] Transfer $81: B=221 → 140, A=7979 → 8060
[TX030] Transfer $25: B=140 → 115, A=8060 → 8085
[TX031] Transfer $906: A=8085 → 7179, B=115 → 1021
[TX032] Transfer $445: B=1021 → 576, A=7179 → 7624
[TX033] Transfer $993: A=7624 → 6631, B=576 → 1569
[TX034] Transfer $340: A=6631 → 6291, B=1569 → 1909
[TX035] Transfer $149: B=1909 → 1760, A=6291 → 6440
[TX036] Transfer $97: A=6440 → 6343, B=1760 → 1857
[TX037] Transfer $405: B=1857 → 1452, A=6343 → 6748
[TX038] Transfer $47: A=6748 → 6701, B=1452 → 1499
[TX039] Transfer $978: B=1499 → 521, A=6701 → 7679
[TX040] Transfer $430: A=7679 → 7249, B=521 → 951
[TX041] Transfer $820: A=7249 → 6429, B=951 → 1771
[TX042] Transfer $562: A=6429 → 5867, B=1771 → 2333
[TX043] Transfer $2: B=2333 → 2331, A=5867 → 5869
[TX044] Transfer $881: A=5869 → 4988, B=2331 → 3212
[TX045] Transfer $746: A=4988 → 4242, B=3212 → 3958
[TX046] Transfer $226: B=3958 → 3732, A=4242 → 4468
[TX047] Transfer $949: B=3732 → 2783, A=4468 → 5417
[TX048] Transfer $83: B=2783 → 2700, A=5417 → 5500
[TX049] Transfer $633: B=2700 → 2067, A=5500 → 6133
[TX050] Transfer $980: B=2067 → 1087, A=6133 → 7113
[TX051] Transfer $648: B=1087 → 439, A=7113 → 7761
[TX052] Transfer $303: B=439 → 136, A=7761 → 8064
[TX053] Transfer $16: B=136 → 120, A=8064 → 8080
[TX054] Transfer $496: A=8080 → 7584, B=120 → 616
[TX055] Transfer $309: B=616 → 307, A=7584 → 7893
[TX056] Transfer $15: B=307 → 292, A=7893 → 7908
[TX057] Transfer $29: B=292 → 263, A=7908 → 7937
[TX058] Transfer $866: A=7937 → 7071, B=263 → 1129
[TX059] Transfer $477: A=7071 → 6594, B=1129 → 1606
[TX060] Transfer $716: A=6594 → 5878, B=1606 → 2322
[TX061] Transfer $762: B=2322 → 1560, A=5878 → 6640
[TX062] Transfer $582: B=1560 → 978, A=6640 → 7222
[TX063] Transfer $85: B=978 → 893, A=7222 → 7307
[TX064] Transfer $640: A=7307 → 6667, B=893 → 1533
[TX065] Transfer $795: B=1533 → 738, A=6667 → 7464
[TX066] Transfer $417: A=7462 → 7045, B=738 → 1155
[TX067] Transfer $426: B=1155 → 729, A=7045 → 7471
[TX068] Transfer $343: B=729 → 386, A=7471 → 7814
[TX069] Transfer $159: B=386 → 227, A=7814 → 7973
[TX070] Transfer $902: A=7973 → 7071, B=227 → 1129
[TX071] Transfer $604: B=1129 → 525, A=7071 → 7675
[TX072] Transfer $442: A=7675 → 7233, B=525 → 967
[TX073] Transfer $251: A=7233 → 6982, B=967 → 1218
[TX074] Transfer $165: A=6982 → 6817, B=1218 → 1383
[TX075] Transfer $875: B=1383 → 508, A=6817 → 7692
[TX076] Transfer $86: A=7692 → 7606, B=508 → 594
[TX077] Transfer $155: A=7606 → 7451, B=594 → 749
POSSIBLE BUG TYPES (choose exactly one):
- CALC_ERROR: Mathematical calculation is incorrect
- NEGATIVE_BAL: Account balance becomes negative
- LOST_UPDATE: Concurrent update causes lost transaction
- DUPLICATE_TXN: Same transaction processed multiple times
Identify the SINGLE bug if any exists.
Respond with ONLY a JSON object:
{"bug_type": "<type>", "bug_location": "<TX_ID>"
Your response:
|
CALC_ERROR
|
TX065
|
Mathematical calculation is incorrect
|
CALC_ERROR
| 77
|
{"bug_type": "CALC_ERROR", "bug_location": "TX065", "explanation": "Mathematical calculation is incorrect"}
|
{"bug_type": "CALC_ERROR", "n_ops": 77}
|
72
|
Analyze this banking transaction log for bugs.
Each operation shows the complete state change.
INITIAL STATE:
{
"account_A": 4000,
"account_B": 4200,
"total": 8200
}
RULES:
1. Total money must remain constant (conservation)
2. No account can go negative
3. All calculations must be mathematically correct
TRANSACTION LOG:
[TX001] Transfer $800: B=4200 → 3400, A=4000 → 4800
[TX002] Transfer $207: B=3400 → 3193, A=4800 → 5007
[TX003] Transfer $773: B=3193 → 2420, A=5007 → 5780
[TX004] Transfer $150: B=2420 → 2270, A=5780 → 5930
[TX005] Transfer $709: A=5930 → 5221, B=2270 → 2979
[TX006] Transfer $977: A=5221 → 4244, B=2979 → 3956
[TX007] Transfer $651: A=4244 → 3593, B=3956 → 4607
[TX008] Transfer $261: A=3593 → 3332, B=4607 → 4868
[TX009] Transfer $575: A=3332 → 2757, B=4868 → 5443
[TX010] Transfer $184: A=2757 → 2573, B=5443 → 5627
[TX011] Transfer $60: B=5627 → 5567, A=2573 → 2633
[TX012] Transfer $842: B=5567 → 4725, A=2633 → 3475
[TX013] Transfer $382: B=4725 → 4343, A=3475 → 3857
[TX014] Transfer $250: A=3857 → 3607, B=4343 → 4593
[TX015] Transfer $70: B=4593 → 4523, A=3607 → 3677
[TX016] Transfer $280: A=3677 → 3397, B=4523 → 4803
[TX017] Transfer $284: B=4803 → 4519, A=3397 → 3681
[TX018] Transfer $8: A=3681 → 3673, B=4519 → 4527
[TX019] Transfer $236: B=4527 → 4291, A=3673 → 3909
[TX020] Transfer $670: B=4291 → 3621, A=3909 → 4579
[TX021] Transfer $15: B=3621 → 3606, A=4579 → 4594
[TX022] Transfer $795: A=4594 → 3799, B=3606 → 4401
[TX023] Transfer $412: B=4401 → 3989, A=3799 → 4211
[TX024] Transfer $681: A=4211 → 3530, B=3989 → 4670
[TX025] Transfer $586: B=4670 → 4084, A=3530 → 4116
[TX026] Transfer $397: B=4084 → 3687, A=4116 → 4513
[TX027] Transfer $750: A=4513 → 3763, B=3687 → 4437
[TX028] Transfer $48: B=4437 → 4389, A=3763 → 3811
[TX029] Transfer $259: B=4389 → 4130, A=3811 → 4070
[TX030] Transfer $961: A=4070 → 3109, B=4130 → 5091
[TX031] Transfer $90: A=3109 → 3019, B=5091 → 5181
[TX032] Payment PAY1019: Transfer $75: B=5181 → 5106, A=3019 → 3094
[TX033] Transfer $339: A=3094 → 2755, B=5106 → 5445
[TX034] Transfer $19: B=5445 → 5426, A=2755 → 2774
[TX035] Transfer $608: A=2774 → 2166, B=5426 → 6034
[TX036] Transfer $463: A=2166 → 1703, B=6034 → 6497
[TX037] Transfer $826: B=6497 → 5671, A=1703 → 2529
[TX038] Transfer $490: A=2529 → 2039, B=5671 → 6161
[TX039] Transfer $20: A=2039 → 2019, B=6161 → 6181
[TX040] Transfer $447: B=6181 → 5734, A=2019 → 2466
[TX041] Transfer $74: A=2466 → 2392, B=5734 → 5808
[TX042] Transfer $141: B=5808 → 5667, A=2392 → 2533
[TX043] Transfer $316: A=2533 → 2217, B=5667 → 5983
[TX044] Transfer $587: A=2217 → 1630, B=5983 → 6570
[TX045] Transfer $929: A=1630 → 701, B=6570 → 7499
[TX046] Transfer $546: B=7499 → 6953, A=701 → 1247
[TX047] Transfer $39: B=6953 → 6914, A=1247 → 1286
[TX048] Transfer $77: B=6914 → 6837, A=1286 → 1363
[TX049] Transfer $504: A=1363 → 859, B=6837 → 7341
[TX050] Transfer $83: B=7341 → 7258, A=859 → 942
[TX051] Transfer $450: A=942 → 492, B=7258 → 7708
[TX052] Transfer $473: B=7708 → 7235, A=492 → 965
[TX053] Transfer $666: B=7235 → 6569, A=965 → 1631
[TX054] Transfer $244: B=6569 → 6325, A=1631 → 1875
[TX055] Transfer $209: A=1875 → 1666, B=6325 → 6534
[TX056] Transfer $647: A=1666 → 1019, B=6534 → 7181
[TX057] Transfer $318: B=7181 → 6863, A=1019 → 1337
[TX058] Transfer $978: A=1337 → 359, B=6863 → 7841
[TX059] Transfer $240: B=7841 → 7601, A=359 → 599
[TX060] Transfer $25: A=599 → 574, B=7601 → 7626
[TX061] Transfer $302: A=574 → 272, B=7626 → 7928
[TX062] Transfer $8: A=272 → 264, B=7928 → 7936
[TX063] Transfer $828: B=7936 → 7108, A=264 → 1092
[TX064] Transfer $291: B=7108 → 6817, A=1092 → 1383
[TX065] Transfer $493: B=6817 → 6324, A=1383 → 1876
[TX066] Transfer $3: A=1876 → 1873, B=6324 → 6327
[TX067] Transfer $993: A=1873 → 880, B=6327 → 7320
[TX068] Transfer $315: B=7320 → 7005, A=880 → 1195
[TX069] Transfer $510: B=7005 → 6495, A=1195 → 1705
[TX070] Transfer $588: B=6495 → 5907, A=1705 → 2293
[TX071] Transfer $947: B=5907 → 4960, A=2293 → 3240
[TX072] Transfer $431: B=4960 → 4529, A=3240 → 3671
[TX073] Transfer $913: A=3671 → 2758, B=4529 → 5442
[TX074] Transfer $709: B=5442 → 4733, A=2758 → 3467
[TX075] Transfer $880: A=3467 → 2587, B=4733 → 5613
[TX076] Transfer $25: B=5613 → 5588, A=2587 → 2612
[TX077] Transfer $363: B=5588 → 5225, A=2612 → 2975
[TX078] Transfer $483: B=5225 → 4742, A=2975 → 3458
[TX079] Transfer $604: A=3458 → 2854, B=4742 → 5346
[TX080] Transfer $580: B=5346 → 4766, A=2854 → 3434
[TX081] Transfer $987: B=4766 → 3779, A=3434 → 4421
[TX082] Transfer $82: B=3779 → 3697, A=4421 → 4503
[TX083] Transfer $142: A=4503 → 4361, B=3697 → 3839
[TX084] Transfer $330: B=3839 → 3509, A=4361 → 4691
[TX085] Transfer $713: A=4691 → 3978, B=3509 → 4222
[TX086] Transfer $738: B=4222 → 3484, A=3978 → 4716
[TX087] Transfer $378: A=4716 → 4338, B=3484 → 3862
[TX088] Payment PAY1019: Transfer $75: B=3862 → 3787, A=4338 → 4413
[TX089] Transfer $167: B=3787 → 3620, A=4413 → 4580
[TX090] Transfer $425: A=4580 → 4155, B=3620 → 4045
[TX091] Transfer $308: A=4155 → 3847, B=4045 → 4353
[TX092] Transfer $875: A=3847 → 2972, B=4353 → 5228
[TX093] Transfer $940: B=5228 → 4288, A=2972 → 3912
[TX094] Transfer $359: B=4288 → 3929, A=3912 → 4271
[TX095] Transfer $675: B=3929 → 3254, A=4271 → 4946
[TX096] Transfer $307: B=3254 → 2947, A=4946 → 5253
[TX097] Transfer $897: B=2947 → 2050, A=5253 → 6150
[TX098] Transfer $316: B=2050 → 1734, A=6150 → 6466
[TX099] Transfer $812: B=1734 → 922, A=6466 → 7278
[TX100] Transfer $407: B=922 → 515, A=7278 → 7685
[TX101] Transfer $855: A=7685 → 6830, B=515 → 1370
[TX102] Transfer $594: B=1370 → 776, A=6830 → 7424
[TX103] Transfer $233: B=776 → 543, A=7424 → 7657
[TX104] Transfer $137: B=543 → 406, A=7657 → 7794
[TX105] Transfer $151: A=7794 → 7643, B=406 → 557
[TX106] Transfer $609: A=7643 → 7034, B=557 → 1166
[TX107] Transfer $133: B=1166 → 1033, A=7034 → 7167
[TX108] Transfer $591: B=1033 → 442, A=7167 → 7758
[TX109] Transfer $129: B=442 → 313, A=7758 → 7887
[TX110] Transfer $992: A=7887 → 6895, B=313 → 1305
[TX111] Transfer $134: A=6895 → 6761, B=1305 → 1439
[TX112] Transfer $119: A=6761 → 6642, B=1439 → 1558
POSSIBLE BUG TYPES (choose exactly one):
- CALC_ERROR: Mathematical calculation is incorrect
- NEGATIVE_BAL: Account balance becomes negative
- LOST_UPDATE: Concurrent update causes lost transaction
- DUPLICATE_TXN: Same transaction processed multiple times
Identify the SINGLE bug if any exists.
Respond with ONLY a JSON object:
{"bug_type": "<type>", "bug_location": "<TX_ID>"
Your response:
|
DUPLICATE_TXN
|
TX088
|
Payment PAY1019 processed twice
|
DUPLICATE_TXN
| 112
|
{"bug_type": "DUPLICATE_TXN", "bug_location": "TX088", "explanation": "Payment PAY1019 processed twice"}
|
{"bug_type": "DUPLICATE_TXN", "n_ops": 112}
|
45
|
Analyze this banking transaction log for bugs.
Each operation shows the complete state change.
INITIAL STATE:
{
"account_A": 4000,
"account_B": 4200,
"total": 8200
}
RULES:
1. Total money must remain constant (conservation)
2. No account can go negative
3. All calculations must be mathematically correct
TRANSACTION LOG:
[TX001] Transfer $135: A=4000 → 3865, B=4200 → 4335
[TX002] Transfer $995: B=4335 → 3340, A=3865 → 4860
[TX003] Transfer $813: A=4860 → 4047, B=3340 → 4153
[TX004] Transfer $471: A=4047 → 3576, B=4153 → 4624
[TX005] Transfer $473: B=4624 → 4151, A=3576 → 4049
[TX006] Transfer $207: A=4049 → 3842, B=4151 → 4358
[TX007] Transfer $316: A=3842 → 3526, B=4358 → 4674
[TX008] Transfer $243: A=3526 → 3283, B=4674 → 4917
[TX009] Transfer $94: A=3283 → 3189, B=4917 → 5011
[TX010] Transfer $703: A=3189 → 2486, B=5011 → 5714
[TX011] Transfer $490: B=5714 → 5224, A=2486 → 2976
[TX012] Transfer $104: A=2976 → 2872, B=5224 → 5328
[TX013] Transfer $717: B=5328 → 4611, A=2872 → 3589
[TX014] Transfer $686: A=3589 → 2903, B=4611 → 5297
[TX015] Transfer $725: B=5297 → 4572, A=2903 → 3628
[TX016] Transfer $398: A=3628 → 3230, B=4572 → 4970
[TX017] Transfer $783: A=3230 → 2447, B=4970 → 5753
[TX018] Transfer $793: A=2447 → 1654, B=5753 → 6546
[TX019] Transfer $841: B=6546 → 5705, A=1654 → 2495
[TX020] Transfer $548: B=5705 → 5157, A=2495 → 3043
[TX021] Transfer $502: A=3043 → 2541, B=5157 → 5659
[TX022] Transfer $908: A=2541 → 1633, B=5659 → 6567
[TX023] Transfer $379: A=1633 → 1254, B=6567 → 6946
[TX024] Transfer $515: B=6946 → 6431, A=1254 → 1769
[TX025] Transfer $938: A=1769 → 831, B=6431 → 7369
[TX026] Transfer $143: A=831 → 688, B=7369 → 7512
[TX027] Transfer $47: B=7512 → 7465, A=688 → 735
[TX028] Transfer $447: A=735 → 288, B=7465 → 7912
[TX029] Transfer $100: A=288 → 188, B=7912 → 8012
[TX030] Transfer $21: A=188 → 167, B=8012 → 8033
[TX031] Transfer $398: B=8033 → 7635, A=167 → 565
[TX032] Transfer $269: B=7635 → 7366, A=565 → 834
[TX033] Transfer $169: B=7366 → 7197, A=834 → 1003
[TX034] Transfer $478: B=7197 → 6719, A=1003 → 1481
[TX035] Transfer $704: A=1481 → 777, B=6719 → 7423
[TX036] Transfer $14: A=777 → 763, B=7423 → 7437
[TX037] Transfer $133: A=763 → 630, B=7437 → 7570
[TX038] Transfer $13: B=7570 → 7557, A=630 → 643
[TX039] Transfer $434: B=7557 → 7123, A=643 → 1077
[TX040] Transfer $437: A=1077 → 640, B=7123 → 7562
[TX041] Transfer $516: A=640 → 124, B=7560 → 8076
[TX042] Transfer $731: B=8076 → 7345, A=124 → 855
[TX043] Transfer $116: B=7345 → 7229, A=855 → 971
[TX044] Transfer $546: A=971 → 425, B=7229 → 7775
[TX045] Transfer $155: B=7775 → 7620, A=425 → 580
[TX046] Transfer $480: A=580 → 100, B=7620 → 8100
[TX047] Transfer $529: B=8100 → 7571, A=100 → 629
[TX048] Transfer $51: B=7571 → 7520, A=629 → 680
[TX049] Transfer $42: B=7520 → 7478, A=680 → 722
[TX050] Transfer $473: A=722 → 249, B=7478 → 7951
[TX051] Transfer $912: B=7951 → 7039, A=249 → 1161
[TX052] Transfer $437: B=7039 → 6602, A=1161 → 1598
[TX053] Transfer $787: B=6602 → 5815, A=1598 → 2385
[TX054] Transfer $185: A=2385 → 2200, B=5815 → 6000
[TX055] Transfer $429: B=6000 → 5571, A=2200 → 2629
[TX056] Transfer $334: A=2629 → 2295, B=5571 → 5905
[TX057] Transfer $612: B=5905 → 5293, A=2295 → 2907
[TX058] Transfer $751: A=2907 → 2156, B=5293 → 6044
[TX059] Transfer $256: A=2156 → 1900, B=6044 → 6300
[TX060] Transfer $549: A=1900 → 1351, B=6300 → 6849
[TX061] Transfer $746: A=1351 → 605, B=6849 → 7595
[TX062] Transfer $222: A=605 → 383, B=7595 → 7817
[TX063] Transfer $997: B=7817 → 6820, A=383 → 1380
[TX064] Transfer $942: B=6820 → 5878, A=1380 → 2322
[TX065] Transfer $80: B=5878 → 5798, A=2322 → 2402
[TX066] Transfer $41: B=5798 → 5757, A=2402 → 2443
[TX067] Transfer $393: A=2443 → 2050, B=5757 → 6150
[TX068] Transfer $951: A=2050 → 1099, B=6150 → 7101
[TX069] Transfer $412: B=7101 → 6689, A=1099 → 1511
[TX070] Transfer $975: A=1511 → 536, B=6689 → 7664
[TX071] Transfer $858: B=7664 → 6806, A=536 → 1394
[TX072] Transfer $814: B=6806 → 5992, A=1394 → 2208
[TX073] Transfer $312: A=2208 → 1896, B=5992 → 6304
[TX074] Transfer $385: A=1896 → 1511, B=6304 → 6689
[TX075] Transfer $780: B=6689 → 5909, A=1511 → 2291
[TX076] Transfer $766: B=5909 → 5143, A=2291 → 3057
[TX077] Transfer $515: A=3057 → 2542, B=5143 → 5658
[TX078] Transfer $933: A=2542 → 1609, B=5658 → 6591
[TX079] Transfer $281: A=1609 → 1328, B=6591 → 6872
[TX080] Transfer $214: A=1328 → 1114, B=6872 → 7086
[TX081] Transfer $674: A=1114 → 440, B=7086 → 7760
[TX082] Transfer $138: A=440 → 302, B=7760 → 7898
[TX083] Transfer $101: B=7898 → 7797, A=302 → 403
[TX084] Transfer $11: A=403 → 392, B=7797 → 7808
[TX085] Transfer $67: B=7808 → 7741, A=392 → 459
[TX086] Transfer $604: B=7741 → 7137, A=459 → 1063
[TX087] Transfer $556: B=7137 → 6581, A=1063 → 1619
[TX088] Transfer $954: B=6581 → 5627, A=1619 → 2573
[TX089] Transfer $350: A=2573 → 2223, B=5627 → 5977
POSSIBLE BUG TYPES (choose exactly one):
- CALC_ERROR: Mathematical calculation is incorrect
- NEGATIVE_BAL: Account balance becomes negative
- LOST_UPDATE: Concurrent update causes lost transaction
- DUPLICATE_TXN: Same transaction processed multiple times
Identify the SINGLE bug if any exists.
Respond with ONLY a JSON object:
{"bug_type": "<type>", "bug_location": "<TX_ID>"
Your response:
|
CALC_ERROR
|
TX040
|
Mathematical calculation is incorrect
|
CALC_ERROR
| 89
|
{"bug_type": "CALC_ERROR", "bug_location": "TX040", "explanation": "Mathematical calculation is incorrect"}
|
{"bug_type": "CALC_ERROR", "n_ops": 89}
|
48
|
Analyze this banking transaction log for bugs.
Each operation shows the complete state change.
INITIAL STATE:
{
"account_A": 4000,
"account_B": 4200,
"total": 8200
}
RULES:
1. Total money must remain constant (conservation)
2. No account can go negative
3. All calculations must be mathematically correct
TRANSACTION LOG:
[TX001] Transfer $195: B=4200 → 4005, A=4000 → 4195
[TX002] Transfer $317: A=4195 → 3878, B=4005 → 4322
[TX003] Transfer $28: A=3878 → 3850, B=4322 → 4350
[TX004] Transfer $555: A=3850 → 3295, B=4350 → 4905
[TX005] Transfer $337: B=4905 → 4568, A=3295 → 3632
[TX006] Transfer $675: B=4568 → 3893, A=3632 → 4307
[TX007] Transfer $312: A=4307 → 3995, B=3893 → 4205
[TX008] Transfer $279: A=3995 → 3716, B=4205 → 4484
[TX009] Transfer $792: A=3716 → 2924, B=4484 → 5276
[TX010] Transfer $142: B=5276 → 5134, A=2924 → 3066
[TX011] Transfer $856: B=5134 → 4278, A=3066 → 3922
[TX012] Transfer $456: B=4278 → 3822, A=3922 → 4378
[TX013] Transfer $52: A=4378 → 4326, B=3822 → 3874
[TX014] Transfer $410: B=3874 → 3464, A=4326 → 4736
[TX015] Transfer $791: A=4736 → 3945, B=3464 → 4255
[TX016] Transfer $97: B=4255 → 4158, A=3945 → 4042
[TX017] Transfer $168: A=4042 → 3874, B=4158 → 4326
[TX018] Transfer $965: A=3874 → 2909, B=4326 → 5291
[TX019] Transfer $769: B=5291 → 4522, A=2909 → 3678
[TX020] Transfer $197: B=4522 → 4325, A=3678 → 3875
[TX021] Transfer $820: A=3875 → 3055, B=4325 → 5145
[TX022] Transfer $263: B=5145 → 4882, A=3055 → 3318
[TX023] Transfer $18: A=3318 → 3300, B=4882 → 4900
[TX024] Transfer $824: A=3300 → 2476, B=4900 → 5724
[TX025] Transfer $986: B=5724 → 4738, A=2476 → 3462
[TX026] Thread T1: READ A=3462
[TX027] Thread T2: READ A=3462
[TX028] Thread T1: COMMIT A=3462 → 3322
[TX029] Thread T2: COMMIT A=3462 → 3320
[TX030] Transfer $446: B=4738 → 4292, A=3320 → 3766
[TX031] Transfer $720: B=4292 → 3572, A=3766 → 4486
[TX032] Transfer $898: A=4486 → 3588, B=3572 → 4470
[TX033] Transfer $976: B=4470 → 3494, A=3588 → 4564
[TX034] Transfer $48: B=3494 → 3446, A=4564 → 4612
[TX035] Transfer $183: A=4612 → 4429, B=3446 → 3629
[TX036] Transfer $533: A=4429 → 3896, B=3629 → 4162
[TX037] Transfer $713: A=3896 → 3183, B=4162 → 4875
[TX038] Transfer $64: B=4875 → 4811, A=3183 → 3247
[TX039] Transfer $382: A=3247 → 2865, B=4811 → 5193
[TX040] Transfer $431: B=5193 → 4762, A=2865 → 3296
[TX041] Transfer $960: A=3296 → 2336, B=4762 → 5722
[TX042] Transfer $375: A=2336 → 1961, B=5722 → 6097
[TX043] Transfer $32: A=1961 → 1929, B=6097 → 6129
[TX044] Transfer $315: B=6129 → 5814, A=1929 → 2244
[TX045] Transfer $932: B=5814 → 4882, A=2244 → 3176
[TX046] Transfer $31: B=4882 → 4851, A=3176 → 3207
[TX047] Transfer $31: A=3207 → 3176, B=4851 → 4882
[TX048] Transfer $754: B=4882 → 4128, A=3176 → 3930
[TX049] Transfer $49: A=3930 → 3881, B=4128 → 4177
[TX050] Transfer $163: B=4177 → 4014, A=3881 → 4044
[TX051] Transfer $359: A=4044 → 3685, B=4014 → 4373
[TX052] Transfer $431: A=3685 → 3254, B=4373 → 4804
[TX053] Transfer $993: A=3254 → 2261, B=4804 → 5797
[TX054] Transfer $427: B=5797 → 5370, A=2261 → 2688
[TX055] Transfer $879: B=5370 → 4491, A=2688 → 3567
[TX056] Transfer $489: A=3567 → 3078, B=4491 → 4980
[TX057] Transfer $133: B=4980 → 4847, A=3078 → 3211
[TX058] Transfer $981: B=4847 → 3866, A=3211 → 4192
[TX059] Transfer $506: A=4192 → 3686, B=3866 → 4372
[TX060] Transfer $226: A=3686 → 3460, B=4372 → 4598
[TX061] Transfer $232: A=3460 → 3228, B=4598 → 4830
[TX062] Transfer $736: A=3228 → 2492, B=4830 → 5566
[TX063] Transfer $910: B=5566 → 4656, A=2492 → 3402
[TX064] Transfer $233: A=3402 → 3169, B=4656 → 4889
[TX065] Transfer $749: B=4889 → 4140, A=3169 → 3918
[TX066] Transfer $729: B=4140 → 3411, A=3918 → 4647
[TX067] Transfer $780: B=3411 → 2631, A=4647 → 5427
[TX068] Transfer $434: A=5427 → 4993, B=2631 → 3065
[TX069] Transfer $595: B=3065 → 2470, A=4993 → 5588
[TX070] Transfer $649: A=5588 → 4939, B=2470 → 3119
[TX071] Transfer $188: A=4939 → 4751, B=3119 → 3307
[TX072] Transfer $651: A=4751 → 4100, B=3307 → 3958
[TX073] Transfer $167: A=4100 → 3933, B=3958 → 4125
[TX074] Transfer $13: B=4125 → 4112, A=3933 → 3946
[TX075] Transfer $880: B=4112 → 3232, A=3946 → 4826
[TX076] Transfer $645: B=3232 → 2587, A=4826 → 5471
[TX077] Transfer $221: B=2587 → 2366, A=5471 → 5692
[TX078] Transfer $560: B=2366 → 1806, A=5692 → 6252
[TX079] Transfer $764: B=1806 → 1042, A=6252 → 7016
[TX080] Transfer $347: B=1042 → 695, A=7016 → 7363
[TX081] Transfer $351: A=7363 → 7012, B=695 → 1046
[TX082] Transfer $681: B=1046 → 365, A=7012 → 7693
[TX083] Transfer $783: A=7693 → 6910, B=365 → 1148
[TX084] Transfer $802: B=1148 → 346, A=6910 → 7712
[TX085] Transfer $166: B=346 → 180, A=7712 → 7878
[TX086] Transfer $98: A=7878 → 7780, B=180 → 278
[TX087] Transfer $851: A=7780 → 6929, B=278 → 1129
[TX088] Transfer $565: A=6929 → 6364, B=1129 → 1694
[TX089] Transfer $896: B=1694 → 798, A=6364 → 7260
[TX090] Transfer $465: B=798 → 333, A=7260 → 7725
[TX091] Transfer $223: B=333 → 110, A=7725 → 7948
[TX092] Transfer $841: A=7948 → 7107, B=110 → 951
[TX093] Transfer $862: A=7107 → 6245, B=951 → 1813
[TX094] Transfer $205: A=6245 → 6040, B=1813 → 2018
[TX095] Transfer $578: B=2018 → 1440, A=6040 → 6618
[TX096] Transfer $554: A=6618 → 6064, B=1440 → 1994
[TX097] Transfer $385: A=6064 → 5679, B=1994 → 2379
POSSIBLE BUG TYPES (choose exactly one):
- CALC_ERROR: Mathematical calculation is incorrect
- NEGATIVE_BAL: Account balance becomes negative
- LOST_UPDATE: Concurrent update causes lost transaction
- DUPLICATE_TXN: Same transaction processed multiple times
Identify the SINGLE bug if any exists.
Respond with ONLY a JSON object:
{"bug_type": "<type>", "bug_location": "<TX_ID>"
Your response:
|
LOST_UPDATE
|
TX029
|
Thread T2 overwrites T1's change
|
LOST_UPDATE
| 97
|
{"bug_type": "LOST_UPDATE", "bug_location": "TX029", "explanation": "Thread T2 overwrites T1's change"}
|
{"bug_type": "LOST_UPDATE", "n_ops": 97}
|
92
|
Analyze this banking transaction log for bugs.
Each operation shows the complete state change.
INITIAL STATE:
{
"account_A": 4000,
"account_B": 4200,
"total": 8200
}
RULES:
1. Total money must remain constant (conservation)
2. No account can go negative
3. All calculations must be mathematically correct
TRANSACTION LOG:
[TX001] Transfer $282: A=4000 → 3718, B=4200 → 4482
[TX002] Transfer $983: B=4482 → 3499, A=3718 → 4701
[TX003] Transfer $397: A=4701 → 4304, B=3499 → 3896
[TX004] Transfer $122: B=3896 → 3774, A=4304 → 4426
[TX005] Transfer $294: A=4426 → 4132, B=3774 → 4068
[TX006] Transfer $608: B=4068 → 3460, A=4132 → 4740
[TX007] Transfer $408: B=3460 → 3052, A=4740 → 5148
[TX008] Transfer $659: A=5148 → 4489, B=3052 → 3711
[TX009] Transfer $768: B=3711 → 2943, A=4489 → 5257
[TX010] Transfer $864: A=5257 → 4393, B=2943 → 3807
[TX011] Transfer $770: B=3807 → 3037, A=4393 → 5163
[TX012] Transfer $941: B=3037 → 2096, A=5163 → 6104
[TX013] Transfer $473: A=6104 → 5631, B=2096 → 2569
[TX014] Transfer $13: A=5631 → 5618, B=2569 → 2582
[TX015] Transfer $842: A=5618 → 4776, B=2582 → 3424
[TX016] Transfer $685: B=3424 → 2739, A=4776 → 5461
[TX017] Transfer $659: A=5461 → 4802, B=2739 → 3398
[TX018] Transfer $737: B=3398 → 2661, A=4802 → 5539
[TX019] Transfer $92: B=2661 → 2569, A=5539 → 5631
[TX020] Transfer $690: B=2569 → 1879, A=5631 → 6321
[TX021] Transfer $700: A=6321 → 5621, B=1879 → 2579
[TX022] Transfer $338: A=5621 → 5283, B=2579 → 2917
[TX023] Transfer $35: A=5283 → 5248, B=2917 → 2952
[TX024] Transfer $112: A=5248 → 5136, B=2952 → 3064
[TX025] Transfer $806: A=5136 → 4330, B=3064 → 3870
[TX026] Transfer $412: A=4330 → 3918, B=3870 → 4282
[TX027] Transfer $750: A=3918 → 3168, B=4282 → 5032
[TX028] Transfer $201: A=3168 → 2967, B=5032 → 5233
[TX029] Transfer $280: A=2967 → 2687, B=5233 → 5513
[TX030] Transfer $489: B=5513 → 5024, A=2687 → 3176
[TX031] Transfer $674: B=5024 → 4350, A=3176 → 3850
[TX032] Transfer $548: A=3850 → 3302, B=4350 → 4898
[TX033] Transfer $48: A=3302 → 3254, B=4898 → 4946
[TX034] Transfer $747: B=4946 → 4199, A=3254 → 4001
[TX035] Transfer $887: A=4001 → 3114, B=4199 → 5086
[TX036] Transfer $616: B=5086 → 4470, A=3114 → 3730
[TX037] Transfer $77: A=3730 → 3653, B=4470 → 4547
[TX038] Transfer $108: B=4547 → 4439, A=3653 → 3761
[TX039] Transfer $1000: B=4439 → 3439, A=3761 → 4761
[TX040] Transfer $792: B=3439 → 2647, A=4761 → 5553
[TX041] Transfer $870: A=5553 → 4683, B=2647 → 3517
[TX042] Transfer $917: B=3517 → 2600, A=4683 → 5600
[TX043] Transfer $544: A=5600 → 5056, B=2600 → 3144
[TX044] Transfer $950: B=3144 → 2194, A=5056 → 6006
[TX045] Transfer $939: A=6006 → 5067, B=2194 → 3133
[TX046] Transfer $899: A=5067 → 4168, B=3133 → 4032
[TX047] Transfer $300: A=4168 → 3868, B=4032 → 4332
[TX048] Transfer $979: A=3868 → 2889, B=4332 → 5311
[TX049] Transfer $515: A=2889 → 2374, B=5311 → 5826
[TX050] Transfer $568: B=5826 → 5258, A=2374 → 2942
[TX051] Transfer $63: B=5258 → 5195, A=2942 → 3005
[TX052] Transfer $204: A=3005 → 2801, B=5195 → 5399
[TX053] Transfer $64: A=2801 → 2737, B=5399 → 5463
[TX054] Transfer $499: B=5463 → 4964, A=2737 → 3236
[TX055] Transfer $944: A=3236 → 2292, B=4964 → 5908
[TX056] Transfer $83: B=5908 → 5825, A=2292 → 2375
[TX057] Transfer $103: B=5825 → 5722, A=2375 → 2478
[TX058] Transfer $120: A=2478 → 2358, B=5722 → 5842
[TX059] Transfer $803: A=2358 → 1555, B=5842 → 6645
[TX060] Transfer $950: A=1555 → 605, B=6645 → 7595
[TX061] Transfer $157: A=605 → 448, B=7595 → 7752
[TX062] Transfer $167: B=7752 → 7585, A=448 → 615
[TX063] Transfer $96: A=615 → 519, B=7585 → 7681
[TX064] Transfer $275: A=519 → 244, B=7681 → 7956
[TX065] Transfer $326: B=7956 → 7630, A=244 → 570
[TX066] Transfer $358: A=570 → 212, B=7630 → 7988
[TX067] Transfer $57: A=212 → 155, B=7988 → 8045
[TX068] Transfer $504: B=8045 → 7541, A=155 → 659
[TX069] Transfer $882: B=7541 → 6659, A=659 → 1541
[TX070] Transfer $621: B=6659 → 6038, A=1541 → 2162
[TX071] Transfer $569: A=2162 → 1593, B=6038 → 6607
[TX072] Transfer $942: A=1593 → 651, B=6607 → 7549
[TX073] Transfer $631: B=7549 → 6918, A=651 → 1282
[TX074] Transfer $127: A=1282 → 1155, B=6918 → 7045
[TX075] Transfer $257: B=7045 → 6788, A=1155 → 1412
[TX076] Transfer $358: A=1412 → 1054, B=6788 → 7146
[TX077] Transfer $79: B=7146 → 7067, A=1054 → 1133
[TX078] Transfer $944: A=1133 → 189, B=7067 → 8011
[TX079] Transfer $341: B=8011 → 7670, A=189 → 530
[TX080] Transfer $307: A=530 → 223, B=7670 → 7977
[TX081] Transfer $399: B=7977 → 7578, A=223 → 622
[TX082] Transfer $261: A=622 → 361, B=7578 → 7839
[TX083] Transfer $173: B=7839 → 7666, A=361 → 534
[TX084] Transfer $777: B=7666 → 6889, A=534 → 1311
[TX085] Transfer $916: B=6889 → 5973, A=1311 → 2227
[TX086] Transfer $144: A=2227 → 2083, B=5973 → 6117
[TX087] Transfer $500: B=6117 → 5617, A=2083 → 2583
[TX088] Transfer $599: A=2583 → 1984, B=5617 → 6216
[TX089] Transfer $438: B=6216 → 5778, A=1984 → 2422
[TX090] Transfer $520: B=5778 → 5258, A=2422 → 2942
[TX091] Transfer $33: A=2942 → 2909, B=5258 → 5291
[TX092] Transfer $607: B=5291 → 4684, A=2909 → 3516
[TX093] Transfer $464: B=4684 → 4220, A=3516 → 3980
[TX094] Transfer $215: B=4220 → 4005, A=3980 → 4195
[TX095] Transfer $798: B=4005 → 3207, A=4195 → 4993
[TX096] Transfer $874: B=3207 → 2333, A=4993 → 5867
[TX097] Transfer $655: A=5867 → 5212, B=2333 → 2988
[TX098] Transfer $161: A=5212 → 5051, B=2988 → 3149
[TX099] Transfer $138: B=3149 → 3011, A=5051 → 5189
[TX100] Thread T1: READ B=3011
[TX101] Thread T2: READ B=3011
[TX102] Thread T1: COMMIT B=3011 → 2858
[TX103] Thread T2: COMMIT B=3011 → 2868
[TX104] Transfer $393: A=5189 → 4796, B=2868 → 3261
[TX105] Transfer $25: A=4796 → 4771, B=3261 → 3286
[TX106] Transfer $303: A=4771 → 4468, B=3286 → 3589
[TX107] Transfer $860: B=3589 → 2729, A=4468 → 5328
[TX108] Transfer $840: A=5328 → 4488, B=2729 → 3569
[TX109] Transfer $883: B=3569 → 2686, A=4488 → 5371
POSSIBLE BUG TYPES (choose exactly one):
- CALC_ERROR: Mathematical calculation is incorrect
- NEGATIVE_BAL: Account balance becomes negative
- LOST_UPDATE: Concurrent update causes lost transaction
- DUPLICATE_TXN: Same transaction processed multiple times
Identify the SINGLE bug if any exists.
Respond with ONLY a JSON object:
{"bug_type": "<type>", "bug_location": "<TX_ID>"
Your response:
|
LOST_UPDATE
|
TX103
|
Thread T2 overwrites T1's change
|
LOST_UPDATE
| 109
|
{"bug_type": "LOST_UPDATE", "bug_location": "TX103", "explanation": "Thread T2 overwrites T1's change"}
|
{"bug_type": "LOST_UPDATE", "n_ops": 109}
|
76
|
Analyze this banking transaction log for bugs.
Each operation shows the complete state change.
INITIAL STATE:
{
"account_A": 4000,
"account_B": 4200,
"total": 8200
}
RULES:
1. Total money must remain constant (conservation)
2. No account can go negative
3. All calculations must be mathematically correct
TRANSACTION LOG:
[TX001] Transfer $960: A=4000 → 3040, B=4200 → 5160
[TX002] Transfer $520: A=3040 → 2520, B=5160 → 5680
[TX003] Transfer $363: A=2520 → 2157, B=5680 → 6043
[TX004] Transfer $558: A=2157 → 1599, B=6043 → 6601
[TX005] Transfer $11: B=6601 → 6590, A=1599 → 1610
[TX006] Transfer $190: B=6590 → 6400, A=1610 → 1800
[TX007] Transfer $322: B=6400 → 6078, A=1800 → 2122
[TX008] Transfer $457: A=2122 → 1665, B=6078 → 6535
[TX009] Transfer $336: B=6535 → 6199, A=1665 → 2001
[TX010] Transfer $748: A=2001 → 1253, B=6199 → 6947
[TX011] Transfer $833: A=1253 → 420, B=6947 → 7780
[TX012] Transfer $264: A=420 → 156, B=7780 → 8044
[TX013] Transfer $29: A=156 → 127, B=8044 → 8073
[TX014] Transfer $301: B=8073 → 7772, A=127 → 428
[TX015] Transfer $510: B=7772 → 7262, A=428 → 938
[TX016] Transfer $455: A=938 → 483, B=7262 → 7717
[TX017] Transfer $608: B=7717 → 7109, A=483 → 1091
[TX018] Transfer $319: B=7109 → 6790, A=1091 → 1410
[TX019] Transfer $835: A=1410 → 575, B=6790 → 7625
[TX020] Transfer $603: B=7625 → 7022, A=575 → 1178
[TX021] Transfer $646: B=7022 → 6376, A=1178 → 1824
[TX022] Transfer $996: B=6376 → 5380, A=1824 → 2820
[TX023] Transfer $626: B=5380 → 4754, A=2820 → 3446
[TX024] Transfer $116: A=3446 → 3330, B=4754 → 4870
[TX025] Transfer $493: A=3330 → 2837, B=4870 → 5363
[TX026] Transfer $546: A=2837 → 2291, B=5363 → 5909
[TX027] Transfer $169: A=2291 → 2122, B=5909 → 6078
[TX028] Transfer $555: A=2122 → 1567, B=6078 → 6633
[TX029] Transfer $928: B=6633 → 5705, A=1567 → 2495
[TX030] Transfer $668: B=5705 → 5037, A=2495 → 3163
[TX031] Transfer $285: B=5037 → 4752, A=3163 → 3448
[TX032] Transfer $598: B=4752 → 4154, A=3448 → 4046
[TX033] Transfer $176: B=4154 → 3978, A=4046 → 4222
[TX034] Transfer $338: B=3978 → 3640, A=4222 → 4560
[TX035] Transfer $970: B=3640 → 2670, A=4560 → 5530
[TX036] Transfer $185: A=5530 → 5345, B=2670 → 2855
[TX037] Transfer $453: A=5345 → 4892, B=2855 → 3308
[TX038] Transfer $841: B=3308 → 2467, A=4892 → 5733
[TX039] Transfer $543: A=5733 → 5190, B=2467 → 3010
[TX040] Transfer $922: A=5190 → 4268, B=3010 → 3932
[TX041] Transfer $16: A=4268 → 4252, B=3932 → 3948
[TX042] Transfer $939: B=3948 → 3009, A=4252 → 5191
[TX043] Transfer $832: B=3009 → 2177, A=5191 → 6023
[TX044] Transfer $815: A=6023 → 5208, B=2177 → 2992
[TX045] Transfer $510: A=5208 → 4698, B=2992 → 3502
[TX046] Transfer $537: A=4698 → 4161, B=3502 → 4039
[TX047] Transfer $188: A=4161 → 3973, B=4039 → 4227
[TX048] Transfer $216: A=3973 → 3757, B=4227 → 4443
[TX049] Transfer $871: B=4443 → 3572, A=3757 → 4628
[TX050] Transfer $593: A=4628 → 4035, B=3572 → 4165
[TX051] Transfer $856: A=4035 → 3179, B=4165 → 5021
[TX052] Transfer $969: A=3179 → 2210, B=5021 → 5990
[TX053] Transfer $910: B=5990 → 5080, A=2210 → 3120
[TX054] Transfer $855: A=3120 → 2265, B=5080 → 5935
[TX055] Transfer $481: A=2265 → 1784, B=5935 → 6416
[TX056] Transfer $325: A=1784 → 1459, B=6416 → 6741
[TX057] Transfer $948: A=1459 → 511, B=6741 → 7689
[TX058] Transfer $228: B=7689 → 7461, A=511 → 739
[TX059] Transfer $645: B=7461 → 6816, A=739 → 1384
[TX060] Transfer $774: B=6816 → 6042, A=1384 → 2158
[TX061] Transfer $789: B=6042 → 5253, A=2158 → 2947
[TX062] Transfer $131: B=5253 → 5122, A=2947 → 3078
[TX063] Transfer $766: B=5122 → 4356, A=3078 → 3844
[TX064] Transfer $591: A=3844 → 3253, B=4356 → 4947
[TX065] Transfer $12: A=3253 → 3241, B=4947 → 4959
[TX066] Transfer $875: A=3241 → 2366, B=4959 → 5834
[TX067] Transfer $139: B=5834 → 5695, A=2366 → 2505
[TX068] Transfer $126: B=5695 → 5569, A=2505 → 2630
[TX069] Transfer $589: B=5569 → 4980, A=2631 → 3220
[TX070] Transfer $848: A=3220 → 2372, B=4980 → 5828
[TX071] Transfer $45: A=2372 → 2327, B=5828 → 5873
[TX072] Transfer $64: B=5873 → 5809, A=2327 → 2391
[TX073] Transfer $219: A=2391 → 2172, B=5809 → 6028
[TX074] Transfer $412: B=6028 → 5616, A=2172 → 2584
[TX075] Transfer $957: A=2584 → 1627, B=5616 → 6573
[TX076] Transfer $390: B=6573 → 6183, A=1627 → 2017
[TX077] Transfer $938: B=6183 → 5245, A=2017 → 2955
[TX078] Transfer $224: B=5245 → 5021, A=2955 → 3179
[TX079] Transfer $583: B=5021 → 4438, A=3179 → 3762
[TX080] Transfer $363: A=3762 → 3399, B=4438 → 4801
[TX081] Transfer $723: A=3399 → 2676, B=4801 → 5524
[TX082] Transfer $559: A=2676 → 2117, B=5524 → 6083
POSSIBLE BUG TYPES (choose exactly one):
- CALC_ERROR: Mathematical calculation is incorrect
- NEGATIVE_BAL: Account balance becomes negative
- LOST_UPDATE: Concurrent update causes lost transaction
- DUPLICATE_TXN: Same transaction processed multiple times
Identify the SINGLE bug if any exists.
Respond with ONLY a JSON object:
{"bug_type": "<type>", "bug_location": "<TX_ID>"
Your response:
|
CALC_ERROR
|
TX068
|
Mathematical calculation is incorrect
|
CALC_ERROR
| 82
|
{"bug_type": "CALC_ERROR", "bug_location": "TX068", "explanation": "Mathematical calculation is incorrect"}
|
{"bug_type": "CALC_ERROR", "n_ops": 82}
|
37
|
Analyze this banking transaction log for bugs.
Each operation shows the complete state change.
INITIAL STATE:
{
"account_A": 4000,
"account_B": 4200,
"total": 8200
}
RULES:
1. Total money must remain constant (conservation)
2. No account can go negative
3. All calculations must be mathematically correct
TRANSACTION LOG:
[TX001] Transfer $152: A=4000 → 3848, B=4200 → 4352
[TX002] Transfer $82: B=4352 → 4270, A=3848 → 3930
[TX003] Transfer $14: A=3930 → 3916, B=4270 → 4284
[TX004] Transfer $785: B=4284 → 3499, A=3916 → 4701
[TX005] Transfer $763: A=4701 → 3938, B=3499 → 4262
[TX006] Transfer $483: A=3938 → 3455, B=4262 → 4745
[TX007] Transfer $456: B=4745 → 4289, A=3455 → 3911
[TX008] Transfer $115: A=3911 → 3796, B=4289 → 4404
[TX009] Transfer $904: A=3796 → 2892, B=4404 → 5308
[TX010] Transfer $517: A=2892 → 2375, B=5308 → 5825
[TX011] Transfer $407: A=2375 → 1968, B=5825 → 6232
[TX012] Transfer $569: B=6232 → 5663, A=1968 → 2537
[TX013] Transfer $728: B=5663 → 4935, A=2537 → 3265
[TX014] Transfer $955: A=3265 → 2310, B=4935 → 5890
[TX015] Transfer $998: A=2310 → 1312, B=5890 → 6888
[TX016] Transfer $975: A=1312 → 337, B=6888 → 7863
[TX017] Transfer $104: A=337 → 233, B=7863 → 7967
[TX018] Transfer $102: A=233 → 131, B=7967 → 8069
[TX019] Transfer $28: A=131 → 103, B=8069 → 8097
[TX020] Transfer $322: B=8097 → 7775, A=103 → 425
[TX021] Transfer $170: B=7775 → 7605, A=425 → 595
[TX022] Transfer $333: A=595 → 262, B=7605 → 7938
[TX023] Transfer $278: B=7938 → 7660, A=262 → 540
[TX024] Transfer $41: A=540 → 499, B=7660 → 7701
[TX025] Transfer $30: B=7701 → 7671, A=499 → 529
[TX026] Transfer $85: A=529 → 444, B=7671 → 7756
[TX027] Transfer $110: A=444 → 334, B=7756 → 7866
[TX028] Transfer $50: A=334 → 284, B=7866 → 7916
[TX029] Transfer $63: A=284 → 221, B=7916 → 7979
[TX030] Transfer $585: B=7979 → 7394, A=221 → 806
[TX031] Transfer $48: A=806 → 758, B=7394 → 7442
[TX032] Transfer $97: A=758 → 661, B=7442 → 7539
[TX033] Transfer $367: B=7539 → 7172, A=661 → 1028
[TX034] Transfer $514: B=7172 → 6658, A=1028 → 1542
[TX035] Transfer $771: A=1542 → 771, B=6658 → 7429
[TX036] Transfer $999: B=7429 → 6430, A=771 → 1770
[TX037] Transfer $341: A=1770 → 1429, B=6430 → 6771
[TX038] Transfer $516: B=6771 → 6255, A=1429 → 1945
[TX039] Transfer $603: A=1945 → 1342, B=6255 → 6858
[TX040] Transfer $602: B=6858 → 6256, A=1342 → 1944
[TX041] Transfer $167: A=1944 → 1777, B=6256 → 6423
[TX042] Transfer $82: A=1777 → 1695, B=6423 → 6505
[TX043] Transfer $907: A=1695 → 788, B=6505 → 7412
[TX044] Transfer $166: A=788 → 622, B=7412 → 7578
[TX045] Transfer $806: B=7578 → 6772, A=622 → 1428
[TX046] Transfer $299: A=1428 → 1129, B=6772 → 7071
[TX047] Transfer $42: B=7071 → 7029, A=1129 → 1171
[TX048] Transfer $215: B=7029 → 6814, A=1171 → 1386
[TX049] Transfer $582: A=1386 → 804, B=6814 → 7396
[TX050] Transfer $826: B=7396 → 6570, A=804 → 1630
[TX051] Transfer $786: A=1630 → 844, B=6570 → 7356
[TX052] Transfer $512: B=7356 → 6844, A=844 → 1356
[TX053] Transfer $323: A=1356 → 1033, B=6844 → 7167
[TX054] Transfer $167: A=1033 → 866, B=7167 → 7334
[TX055] Transfer $592: A=866 → 274, B=7334 → 7926
[TX056] Transfer $93: B=7926 → 7833, A=274 → 367
[TX057] Transfer $237: A=367 → 130, B=7833 → 8070
[TX058] Transfer $264: B=8070 → 7806, A=130 → 394
[TX059] Transfer $964: B=7806 → 6842, A=394 → 1358
[TX060] Transfer $42: A=1358 → 1316, B=6842 → 6884
[TX061] Transfer $412: B=6884 → 6472, A=1316 → 1728
[TX062] Transfer $453: B=6472 → 6019, A=1728 → 2181
[TX063] Transfer $384: B=6019 → 5635, A=2181 → 2565
[TX064] Transfer $520: A=2565 → 2045, B=5635 → 6155
[TX065] Transfer $900: B=6155 → 5255, A=2045 → 2945
[TX066] Transfer $760: A=2945 → 2185, B=5255 → 6015
[TX067] Transfer $160: A=2185 → 2025, B=6015 → 6175
[TX068] Transfer $386: A=2025 → 1639, B=6175 → 6561
[TX069] Transfer $876: A=1639 → 763, B=6561 → 7437
[TX070] Transfer $399: A=763 → 364, B=7437 → 7836
[TX071] Transfer $359: B=7836 → 7477, A=364 → 723
[TX072] Transfer $659: B=7477 → 6818, A=723 → 1382
[TX073] Transfer $89: B=6818 → 6729, A=1382 → 1471
[TX074] Transfer $941: A=1471 → 530, B=6729 → 7670
[TX075] Transfer $206: B=7670 → 7464, A=530 → 736
[TX076] Transfer $68: B=7464 → 7396, A=736 → 804
[TX077] Transfer $620: B=7396 → 6776, A=804 → 1424
[TX078] Transfer $721: B=6776 → 6055, A=1424 → 2143
[TX079] Transfer $467: A=2145 → 1678, B=6055 → 6522
[TX080] Transfer $973: A=1678 → 705, B=6522 → 7495
[TX081] Transfer $657: B=7495 → 6838, A=705 → 1362
[TX082] Transfer $583: A=1362 → 779, B=6838 → 7421
[TX083] Transfer $65: A=779 → 714, B=7421 → 7486
[TX084] Transfer $486: B=7486 → 7000, A=714 → 1200
[TX085] Transfer $218: A=1200 → 982, B=7000 → 7218
[TX086] Transfer $278: A=982 → 704, B=7218 → 7496
[TX087] Transfer $87: B=7496 → 7409, A=704 → 791
[TX088] Transfer $282: A=791 → 509, B=7409 → 7691
[TX089] Transfer $307: B=7691 → 7384, A=509 → 816
[TX090] Transfer $539: B=7384 → 6845, A=816 → 1355
[TX091] Transfer $190: A=1355 → 1165, B=6845 → 7035
[TX092] Transfer $918: A=1165 → 247, B=7035 → 7953
[TX093] Transfer $988: B=7953 → 6965, A=247 → 1235
[TX094] Transfer $205: B=6965 → 6760, A=1235 → 1440
POSSIBLE BUG TYPES (choose exactly one):
- CALC_ERROR: Mathematical calculation is incorrect
- NEGATIVE_BAL: Account balance becomes negative
- LOST_UPDATE: Concurrent update causes lost transaction
- DUPLICATE_TXN: Same transaction processed multiple times
Identify the SINGLE bug if any exists.
Respond with ONLY a JSON object:
{"bug_type": "<type>", "bug_location": "<TX_ID>"
Your response:
|
CALC_ERROR
|
TX078
|
Mathematical calculation is incorrect
|
CALC_ERROR
| 94
|
{"bug_type": "CALC_ERROR", "bug_location": "TX078", "explanation": "Mathematical calculation is incorrect"}
|
{"bug_type": "CALC_ERROR", "n_ops": 94}
|
30
|
Analyze this banking transaction log for bugs.
Each operation shows the complete state change.
INITIAL STATE:
{
"account_A": 4000,
"account_B": 4200,
"total": 8200
}
RULES:
1. Total money must remain constant (conservation)
2. No account can go negative
3. All calculations must be mathematically correct
TRANSACTION LOG:
[TX001] Transfer $522: A=4000 → 3478, B=4200 → 4722
[TX002] Transfer $277: B=4722 → 4445, A=3478 → 3755
[TX003] Transfer $477: A=3755 → 3278, B=4445 → 4922
[TX004] Transfer $497: B=4922 → 4425, A=3278 → 3775
[TX005] Transfer $650: A=3775 → 3125, B=4425 → 5075
[TX006] Transfer $277: A=3125 → 2848, B=5075 → 5352
[TX007] Transfer $783: A=2848 → 2065, B=5352 → 6135
[TX008] Transfer $583: A=2065 → 1482, B=6135 → 6718
[TX009] Transfer $87: B=6718 → 6631, A=1482 → 1569
[TX010] Transfer $384: A=1569 → 1185, B=6631 → 7015
[TX011] Transfer $552: A=1185 → 633, B=7015 → 7567
[TX012] Transfer $44: B=7567 → 7523, A=633 → 677
[TX013] Transfer $298: A=677 → 379, B=7523 → 7821
[TX014] Transfer $32: A=379 → 347, B=7821 → 7853
[TX015] Transfer $614: B=7853 → 7239, A=347 → 961
[TX016] Transfer $361: B=7239 → 6878, A=961 → 1322
[TX017] Transfer $48: A=1322 → 1274, B=6878 → 6926
[TX018] Transfer $309: A=1274 → 965, B=6926 → 7235
[TX019] Transfer $717: A=965 → 248, B=7235 → 7952
[TX020] Transfer $144: A=248 → 104, B=7952 → 8096
[TX021] Transfer $217: B=8096 → 7879, A=104 → 321
[TX022] Transfer $652: B=7879 → 7227, A=321 → 973
[TX023] Transfer $281: B=7227 → 6946, A=973 → 1254
[TX024] Transfer $351: A=1254 → 903, B=6946 → 7297
[TX025] Transfer $615: A=903 → 288, B=7297 → 7912
[TX026] Transfer $937: B=7912 → 6975, A=288 → 1225
[TX027] Transfer $625: A=1225 → 600, B=6975 → 7600
[TX028] Transfer $925: B=7600 → 6675, A=600 → 1525
[TX029] Transfer $425: A=1525 → 1100, B=6675 → 7100
[TX030] Transfer $553: B=7100 → 6547, A=1100 → 1653
[TX031] Transfer $553: A=1653 → 1100, B=6547 → 7100
[TX032] Transfer $690: A=1100 → 410, B=7100 → 7790
[TX033] Transfer $194: A=410 → 216, B=7790 → 7984
[TX034] Transfer $183: B=7984 → 7801, A=216 → 399
[TX035] Transfer $238: A=399 → 161, B=7801 → 8039
[TX036] Transfer $457: B=8039 → 7582, A=161 → 618
[TX037] Transfer $22: A=618 → 596, B=7582 → 7604
[TX038] Transfer $198: B=7604 → 7406, A=596 → 794
[TX039] Transfer $228: A=794 → 566, B=7406 → 7634
[TX040] Transfer $187: A=566 → 379, B=7634 → 7821
[TX041] Transfer $254: A=379 → 125, B=7821 → 8075
[TX042] Transfer $8: A=125 → 117, B=8075 → 8083
[TX043] Transfer $892: B=8083 → 7191, A=117 → 1009
[TX044] Transfer $176: B=7191 → 7015, A=1009 → 1185
[TX045] Transfer $68: A=1185 → 1117, B=7015 → 7083
[TX046] Transfer $132: A=1117 → 985, B=7083 → 7215
[TX047] Transfer $904: B=7215 → 6311, A=985 → 1889
[TX048] Transfer $870: B=6311 → 5441, A=1889 → 2759
[TX049] Transfer $699: A=2759 → 2060, B=5441 → 6140
[TX050] Transfer $962: B=6140 → 5178, A=2060 → 3022
[TX051] Transfer $876: B=5178 → 4302, A=3022 → 3898
[TX052] Transfer $866: B=4302 → 3436, A=3898 → 4764
[TX053] Transfer $126: B=3436 → 3310, A=4764 → 4890
[TX054] Transfer $372: B=3310 → 2938, A=4890 → 5262
[TX055] Transfer $50: A=5262 → 5212, B=2938 → 2988
[TX056] Transfer $547: B=2988 → 2441, A=5212 → 5759
[TX057] Transfer $7: B=2441 → 2434, A=5759 → 5766
[TX058] Transfer $344: B=2434 → 2090, A=5766 → 6110
[TX059] Transfer $757: A=6110 → 5353, B=2090 → 2847
[TX060] Transfer $982: A=5353 → 4371, B=2847 → 3829
[TX061] Transfer $203: A=4371 → 4168, B=3829 → 4032
[TX062] Transfer $320: A=4168 → 3848, B=4032 → 4352
[TX063] Transfer $30: A=3848 → 3818, B=4352 → 4382
[TX064] Transfer $829: B=4382 → 3553, A=3818 → 4647
[TX065] Transfer $862: A=4647 → 3785, B=3553 → 4415
[TX066] Transfer $112: B=4415 → 4303, A=3785 → 3897
[TX067] Transfer $983: B=4303 → 3320, A=3897 → 4880
[TX068] Transfer $843: B=3320 → 2477, A=4880 → 5723
[TX069] Transfer $968: B=2477 → 1509, A=5723 → 6691
[TX070] Transfer $784: A=6691 → 5907, B=1509 → 2293
[TX071] Transfer $594: A=5907 → 5313, B=2293 → 2887
[TX072] Transfer $999: A=5313 → 4314, B=2887 → 3886
[TX073] Transfer $388: A=4314 → 3926, B=3886 → 4274
[TX074] Transfer $803: B=4274 → 3471, A=3926 → 4729
[TX075] Transfer $943: A=4729 → 3786, B=3471 → 4414
[TX076] Transfer $310: B=4414 → 4104, A=3786 → 4096
[TX077] Transfer $106: B=4104 → 3998, A=4096 → 4202
[TX078] Transfer $303: A=4202 → 3899, B=3998 → 4299
[TX079] Transfer $634: B=4301 → 3667, A=3899 → 4533
[TX080] Transfer $887: B=3667 → 2780, A=4533 → 5420
[TX081] Transfer $395: A=5420 → 5025, B=2780 → 3175
[TX082] Transfer $903: B=3175 → 2272, A=5025 → 5928
[TX083] Transfer $668: A=5928 → 5260, B=2272 → 2940
[TX084] Transfer $531: A=5260 → 4729, B=2940 → 3471
[TX085] Transfer $112: B=3471 → 3359, A=4729 → 4841
[TX086] Transfer $611: A=4841 → 4230, B=3359 → 3970
[TX087] Transfer $928: A=4230 → 3302, B=3970 → 4898
[TX088] Transfer $365: A=3302 → 2937, B=4898 → 5263
[TX089] Transfer $744: B=5263 → 4519, A=2937 → 3681
[TX090] Transfer $250: B=4519 → 4269, A=3681 → 3931
[TX091] Transfer $63: A=3931 → 3868, B=4269 → 4332
[TX092] Transfer $600: A=3868 → 3268, B=4332 → 4932
[TX093] Transfer $320: B=4932 → 4612, A=3268 → 3588
[TX094] Transfer $482: A=3588 → 3106, B=4612 → 5094
[TX095] Transfer $300: B=5094 → 4794, A=3106 → 3406
[TX096] Transfer $532: B=4794 → 4262, A=3406 → 3938
[TX097] Transfer $245: A=3938 → 3693, B=4262 → 4507
[TX098] Transfer $354: A=3693 → 3339, B=4507 → 4861
[TX099] Transfer $657: A=3339 → 2682, B=4861 → 5518
[TX100] Transfer $351: A=2682 → 2331, B=5518 → 5869
[TX101] Transfer $713: A=2331 → 1618, B=5869 → 6582
[TX102] Transfer $874: B=6582 → 5708, A=1618 → 2492
[TX103] Transfer $430: B=5708 → 5278, A=2492 → 2922
[TX104] Transfer $109: B=5278 → 5169, A=2922 → 3031
[TX105] Transfer $509: B=5169 → 4660, A=3031 → 3540
[TX106] Transfer $656: A=3540 → 2884, B=4660 → 5316
[TX107] Transfer $479: A=2884 → 2405, B=5316 → 5795
POSSIBLE BUG TYPES (choose exactly one):
- CALC_ERROR: Mathematical calculation is incorrect
- NEGATIVE_BAL: Account balance becomes negative
- LOST_UPDATE: Concurrent update causes lost transaction
- DUPLICATE_TXN: Same transaction processed multiple times
Identify the SINGLE bug if any exists.
Respond with ONLY a JSON object:
{"bug_type": "<type>", "bug_location": "<TX_ID>"
Your response:
|
CALC_ERROR
|
TX078
|
Mathematical calculation is incorrect
|
CALC_ERROR
| 107
|
{"bug_type": "CALC_ERROR", "bug_location": "TX078", "explanation": "Mathematical calculation is incorrect"}
|
{"bug_type": "CALC_ERROR", "n_ops": 107}
|
21
|
Analyze this banking transaction log for bugs.
Each operation shows the complete state change.
INITIAL STATE:
{
"account_A": 4000,
"account_B": 4200,
"total": 8200
}
RULES:
1. Total money must remain constant (conservation)
2. No account can go negative
3. All calculations must be mathematically correct
TRANSACTION LOG:
[TX001] Transfer $633: A=4000 → 3367, B=4200 → 4833
[TX002] Transfer $342: B=4833 → 4491, A=3367 → 3709
[TX003] Transfer $999: A=3709 → 2710, B=4491 → 5490
[TX004] Transfer $97: B=5490 → 5393, A=2710 → 2807
[TX005] Transfer $468: B=5393 → 4925, A=2807 → 3275
[TX006] Transfer $483: B=4925 → 4442, A=3275 → 3758
[TX007] Transfer $149: A=3758 → 3609, B=4442 → 4591
[TX008] Transfer $403: B=4591 → 4188, A=3609 → 4012
[TX009] Transfer $809: A=4012 → 3203, B=4188 → 4997
[TX010] Transfer $501: B=4997 → 4496, A=3203 → 3704
[TX011] Transfer $488: A=3704 → 3216, B=4496 → 4984
[TX012] Transfer $492: A=3216 → 2724, B=4984 → 5476
[TX013] Transfer $291: B=5476 → 5185, A=2724 → 3015
[TX014] Transfer $522: B=5185 → 4663, A=3015 → 3537
[TX015] Transfer $839: A=3537 → 2698, B=4663 → 5502
[TX016] Transfer $571: A=2698 → 2127, B=5502 → 6073
[TX017] Transfer $547: A=2127 → 1580, B=6073 → 6620
[TX018] Transfer $606: B=6620 → 6014, A=1580 → 2186
[TX019] Transfer $637: B=6014 → 5377, A=2186 → 2823
[TX020] Transfer $999: A=2823 → 1824, B=5377 → 6376
[TX021] Transfer $69: B=6376 → 6307, A=1824 → 1893
[TX022] Transfer $835: B=6307 → 5472, A=1893 → 2728
[TX023] Transfer $582: B=5472 → 4890, A=2728 → 3310
[TX024] Transfer $179: B=4890 → 4711, A=3310 → 3489
[TX025] Transfer $119: A=3489 → 3370, B=4711 → 4830
[TX026] Transfer $570: B=4830 → 4260, A=3370 → 3940
[TX027] Transfer $182: A=3940 → 3758, B=4260 → 4442
[TX028] Transfer $73: B=4442 → 4369, A=3758 → 3831
[TX029] Transfer $337: A=3831 → 3494, B=4369 → 4706
[TX030] Transfer $94: B=4706 → 4612, A=3494 → 3588
[TX031] Transfer $910: A=3588 → 2678, B=4612 → 5522
[TX032] Transfer $678: A=2678 → 2000, B=5522 → 6200
[TX033] Transfer $546: A=2000 → 1454, B=6200 → 6746
[TX034] Transfer $632: B=6746 → 6114, A=1454 → 2086
[TX035] Transfer $212: B=6114 → 5902, A=2086 → 2298
[TX036] Transfer $585: B=5902 → 5317, A=2298 → 2883
[TX037] Transfer $737: B=5317 → 4580, A=2883 → 3620
[TX038] Transfer $598: B=4580 → 3982, A=3620 → 4218
[TX039] Transfer $869: A=4218 → 3349, B=3982 → 4851
[TX040] Transfer $65: A=3349 → 3284, B=4851 → 4916
[TX041] Transfer $2: B=4916 → 4914, A=3284 → 3286
[TX042] Transfer $883: B=4914 → 4031, A=3286 → 4169
[TX043] Transfer $242: B=4031 → 3789, A=4169 → 4411
[TX044] Transfer $642: B=3789 → 3147, A=4411 → 5053
[TX045] Transfer $417: B=3147 → 2730, A=5053 → 5470
[TX046] Transfer $560: B=2730 → 2170, A=5470 → 6030
[TX047] Transfer $488: A=6030 → 5542, B=2170 → 2658
[TX048] Transfer $570: A=5542 → 4972, B=2658 → 3228
[TX049] Transfer $862: B=3228 → 2366, A=4972 → 5834
[TX050] Transfer $297: B=2366 → 2069, A=5834 → 6131
[TX051] Transfer $13: A=6131 → 6118, B=2069 → 2082
[TX052] Transfer $149: A=6118 → 5969, B=2082 → 2229
[TX053] Transfer $88: B=2231 → 2143, A=5969 → 6057
[TX054] Transfer $882: A=6057 → 5175, B=2143 → 3025
[TX055] Transfer $640: B=3025 → 2385, A=5175 → 5815
[TX056] Transfer $523: A=5815 → 5292, B=2385 → 2908
[TX057] Transfer $395: B=2908 → 2513, A=5292 → 5687
[TX058] Transfer $192: B=2513 → 2321, A=5687 → 5879
[TX059] Transfer $593: B=2321 → 1728, A=5879 → 6472
[TX060] Transfer $731: B=1728 → 997, A=6472 → 7203
[TX061] Transfer $561: B=997 → 436, A=7203 → 7764
[TX062] Transfer $21: B=436 → 415, A=7764 → 7785
[TX063] Transfer $59: B=415 → 356, A=7785 → 7844
[TX064] Transfer $38: B=356 → 318, A=7844 → 7882
[TX065] Transfer $134: B=318 → 184, A=7882 → 8016
[TX066] Transfer $253: A=8016 → 7763, B=184 → 437
[TX067] Transfer $326: B=437 → 111, A=7763 → 8089
[TX068] Transfer $7: B=111 → 104, A=8089 → 8096
[TX069] Transfer $466: A=8096 → 7630, B=104 → 570
[TX070] Transfer $217: B=570 → 353, A=7630 → 7847
[TX071] Transfer $76: B=353 → 277, A=7847 → 7923
[TX072] Transfer $713: A=7923 → 7210, B=277 → 990
[TX073] Transfer $64: B=990 → 926, A=7210 → 7274
[TX074] Transfer $588: B=926 → 338, A=7274 → 7862
[TX075] Transfer $830: A=7862 → 7032, B=338 → 1168
[TX076] Transfer $498: A=7032 → 6534, B=1168 → 1666
[TX077] Transfer $519: A=6534 → 6015, B=1666 → 2185
[TX078] Transfer $260: A=6015 → 5755, B=2185 → 2445
[TX079] Transfer $283: A=5755 → 5472, B=2445 → 2728
[TX080] Transfer $761: B=2728 → 1967, A=5472 → 6233
[TX081] Transfer $933: A=6233 → 5300, B=1967 → 2900
[TX082] Transfer $380: A=5300 → 4920, B=2900 → 3280
POSSIBLE BUG TYPES (choose exactly one):
- CALC_ERROR: Mathematical calculation is incorrect
- NEGATIVE_BAL: Account balance becomes negative
- LOST_UPDATE: Concurrent update causes lost transaction
- DUPLICATE_TXN: Same transaction processed multiple times
Identify the SINGLE bug if any exists.
Respond with ONLY a JSON object:
{"bug_type": "<type>", "bug_location": "<TX_ID>"
Your response:
|
CALC_ERROR
|
TX052
|
Mathematical calculation is incorrect
|
CALC_ERROR
| 82
|
{"bug_type": "CALC_ERROR", "bug_location": "TX052", "explanation": "Mathematical calculation is incorrect"}
|
{"bug_type": "CALC_ERROR", "n_ops": 82}
|
32
|
Analyze this banking transaction log for bugs.
Each operation shows the complete state change.
INITIAL STATE:
{
"account_A": 4000,
"account_B": 4200,
"total": 8200
}
RULES:
1. Total money must remain constant (conservation)
2. No account can go negative
3. All calculations must be mathematically correct
TRANSACTION LOG:
[TX001] Transfer $717: B=4200 → 3483, A=4000 → 4717
[TX002] Transfer $717: A=4717 → 4000, B=3483 → 4200
[TX003] Transfer $908: A=4000 → 3092, B=4200 → 5108
[TX004] Transfer $905: A=3092 → 2187, B=5108 → 6013
[TX005] Transfer $716: B=6013 → 5297, A=2187 → 2903
[TX006] Transfer $423: A=2903 → 2480, B=5297 → 5720
[TX007] Transfer $80: A=2480 → 2400, B=5720 → 5800
[TX008] Transfer $421: A=2400 → 1979, B=5800 → 6221
[TX009] Transfer $260: B=6221 → 5961, A=1979 → 2239
[TX010] Transfer $475: A=2239 → 1764, B=5961 → 6436
[TX011] Transfer $656: A=1764 → 1108, B=6436 → 7092
[TX012] Transfer $353: B=7092 → 6739, A=1108 → 1461
[TX013] Transfer $408: B=6739 → 6331, A=1461 → 1869
[TX014] Transfer $258: A=1869 → 1611, B=6331 → 6589
[TX015] Transfer $336: A=1611 → 1275, B=6589 → 6925
[TX016] Transfer $474: B=6925 → 6451, A=1275 → 1749
[TX017] Transfer $563: A=1749 → 1186, B=6451 → 7014
[TX018] Transfer $145: A=1186 → 1041, B=7014 → 7159
[TX019] Transfer $863: B=7159 → 6296, A=1041 → 1904
[TX020] Transfer $860: A=1904 → 1044, B=6296 → 7156
[TX021] Transfer $183: A=1044 → 861, B=7156 → 7339
[TX022] Transfer $549: B=7339 → 6790, A=861 → 1410
[TX023] Transfer $81: B=6790 → 6709, A=1410 → 1491
[TX024] Transfer $159: A=1491 → 1332, B=6709 → 6868
[TX025] Transfer $184: B=6868 → 6684, A=1332 → 1516
[TX026] Transfer $916: A=1516 → 600, B=6684 → 7600
[TX027] Transfer $358: A=600 → 242, B=7600 → 7958
[TX028] Payment PAY1008: Transfer $51: A=242 → 191, B=7958 → 8009
[TX029] Transfer $55: B=8009 → 7954, A=191 → 246
[TX030] Transfer $98: A=246 → 148, B=7954 → 8052
[TX031] Transfer $25: A=148 → 123, B=8052 → 8077
[TX032] Transfer $4: A=123 → 119, B=8077 → 8081
[TX033] Transfer $2: A=119 → 117, B=8081 → 8083
[TX034] Transfer $8: A=117 → 109, B=8083 → 8091
[TX035] Transfer $3: A=109 → 106, B=8091 → 8094
[TX036] Transfer $2: A=106 → 104, B=8094 → 8096
[TX037] Transfer $837: B=8096 → 7259, A=104 → 941
[TX038] Transfer $577: B=7259 → 6682, A=941 → 1518
[TX039] Transfer $958: A=1518 → 560, B=6682 → 7640
[TX040] Transfer $125: B=7640 → 7515, A=560 → 685
[TX041] Transfer $110: A=685 → 575, B=7515 → 7625
[TX042] Transfer $179: B=7625 → 7446, A=575 → 754
[TX043] Transfer $325: A=754 → 429, B=7446 → 7771
[TX044] Transfer $110: A=429 → 319, B=7771 → 7881
[TX045] Transfer $69: B=7881 → 7812, A=319 → 388
[TX046] Transfer $46: B=7812 → 7766, A=388 → 434
[TX047] Transfer $212: A=434 → 222, B=7766 → 7978
[TX048] Transfer $106: B=7978 → 7872, A=222 → 328
[TX049] Transfer $26: A=328 → 302, B=7872 → 7898
[TX050] Transfer $696: B=7898 → 7202, A=302 → 998
[TX051] Transfer $181: A=998 → 817, B=7202 → 7383
[TX052] Transfer $71: B=7383 → 7312, A=817 → 888
[TX053] Transfer $625: B=7312 → 6687, A=888 → 1513
[TX054] Transfer $525: B=6687 → 6162, A=1513 → 2038
[TX055] Transfer $240: A=2038 → 1798, B=6162 → 6402
[TX056] Transfer $318: A=1798 → 1480, B=6402 → 6720
[TX057] Transfer $777: A=1480 → 703, B=6720 → 7497
[TX058] Payment PAY1008: Transfer $51: A=703 → 652, B=7497 → 7548
[TX059] Transfer $63: A=652 → 589, B=7548 → 7611
[TX060] Transfer $257: A=589 → 332, B=7611 → 7868
[TX061] Transfer $157: B=7868 → 7711, A=332 → 489
[TX062] Transfer $659: B=7711 → 7052, A=489 → 1148
[TX063] Transfer $947: A=1148 → 201, B=7052 → 7999
[TX064] Transfer $139: B=7999 → 7860, A=201 → 340
[TX065] Transfer $661: B=7860 → 7199, A=340 → 1001
[TX066] Transfer $665: A=1001 → 336, B=7199 → 7864
[TX067] Transfer $236: B=7864 → 7628, A=336 → 572
[TX068] Transfer $250: B=7628 → 7378, A=572 → 822
[TX069] Transfer $682: A=822 → 140, B=7378 → 8060
[TX070] Transfer $40: A=140 → 100, B=8060 → 8100
[TX071] Transfer $189: B=8100 → 7911, A=100 → 289
[TX072] Transfer $68: B=7911 → 7843, A=289 → 357
[TX073] Transfer $978: B=7843 → 6865, A=357 → 1335
[TX074] Transfer $651: A=1335 → 684, B=6865 → 7516
[TX075] Transfer $130: A=684 → 554, B=7516 → 7646
[TX076] Transfer $305: A=554 → 249, B=7646 → 7951
[TX077] Transfer $131: A=249 → 118, B=7951 → 8082
[TX078] Transfer $16: A=118 → 102, B=8082 → 8098
[TX079] Transfer $740: B=8098 → 7358, A=102 → 842
[TX080] Transfer $436: A=842 → 406, B=7358 → 7794
[TX081] Transfer $157: A=406 → 249, B=7794 → 7951
[TX082] Transfer $992: B=7951 → 6959, A=249 → 1241
[TX083] Transfer $885: A=1241 → 356, B=6959 → 7844
[TX084] Transfer $975: B=7844 → 6869, A=356 → 1331
POSSIBLE BUG TYPES (choose exactly one):
- CALC_ERROR: Mathematical calculation is incorrect
- NEGATIVE_BAL: Account balance becomes negative
- LOST_UPDATE: Concurrent update causes lost transaction
- DUPLICATE_TXN: Same transaction processed multiple times
Identify the SINGLE bug if any exists.
Respond with ONLY a JSON object:
{"bug_type": "<type>", "bug_location": "<TX_ID>"
Your response:
|
DUPLICATE_TXN
|
TX058
|
Payment PAY1008 processed twice
|
DUPLICATE_TXN
| 84
|
{"bug_type": "DUPLICATE_TXN", "bug_location": "TX058", "explanation": "Payment PAY1008 processed twice"}
|
{"bug_type": "DUPLICATE_TXN", "n_ops": 84}
|
96
|
Analyze this banking transaction log for bugs.
Each operation shows the complete state change.
INITIAL STATE:
{
"account_A": 4000,
"account_B": 4200,
"total": 8200
}
RULES:
1. Total money must remain constant (conservation)
2. No account can go negative
3. All calculations must be mathematically correct
TRANSACTION LOG:
[TX001] Transfer $130: A=4000 → 3870, B=4200 → 4330
[TX002] Transfer $785: A=3870 → 3085, B=4330 → 5115
[TX003] Transfer $974: A=3085 → 2111, B=5115 → 6089
[TX004] Transfer $482: B=6089 → 5607, A=2111 → 2593
[TX005] Transfer $125: B=5607 → 5482, A=2593 → 2718
[TX006] Transfer $328: B=5482 → 5154, A=2718 → 3046
[TX007] Transfer $670: A=3046 → 2376, B=5154 → 5824
[TX008] Transfer $3: B=5824 → 5821, A=2376 → 2379
[TX009] Transfer $455: A=2379 → 1924, B=5821 → 6276
[TX010] Transfer $76: A=1924 → 1848, B=6276 → 6352
[TX011] Transfer $735: A=1848 → 1113, B=6352 → 7087
[TX012] Transfer $200: B=7087 → 6887, A=1113 → 1313
[TX013] Transfer $502: B=6887 → 6385, A=1313 → 1815
[TX014] Transfer $359: A=1815 → 1456, B=6385 → 6744
[TX015] Transfer $482: B=6744 → 6262, A=1456 → 1938
[TX016] Transfer $959: A=1938 → 979, B=6262 → 7221
[TX017] Transfer $112: A=979 → 867, B=7221 → 7333
[TX018] Transfer $728: B=7333 → 6605, A=867 → 1595
[TX019] Transfer $792: B=6605 → 5813, A=1595 → 2387
[TX020] Transfer $790: B=5813 → 5023, A=2387 → 3177
[TX021] Transfer $305: B=5023 → 4718, A=3177 → 3482
[TX022] Transfer $538: A=3482 → 2944, B=4718 → 5256
[TX023] Transfer $296: A=2944 → 2648, B=5256 → 5552
[TX024] Transfer $19: B=5552 → 5533, A=2648 → 2667
[TX025] Transfer $167: B=5533 → 5366, A=2667 → 2834
[TX026] Transfer $5379: B=5366 → -13, A=2834 → 8213
[TX027] Balance check: B=-13
[TX028] Balance check: B=-13
[TX029] Transfer $859: A=8213 → 7354, B=-13 → 846
[TX030] Transfer $780: A=7354 → 6574, B=846 → 1626
[TX031] Transfer $640: B=1626 → 986, A=6574 → 7214
[TX032] Transfer $23: A=7214 → 7191, B=986 → 1009
[TX033] Transfer $491: B=1009 → 518, A=7191 → 7682
[TX034] Transfer $53: A=7682 → 7629, B=518 → 571
[TX035] Transfer $506: A=7629 → 7123, B=571 → 1077
[TX036] Transfer $931: A=7123 → 6192, B=1077 → 2008
[TX037] Transfer $765: B=2008 → 1243, A=6192 → 6957
[TX038] Transfer $72: A=6957 → 6885, B=1243 → 1315
[TX039] Transfer $431: B=1315 → 884, A=6885 → 7316
[TX040] Transfer $518: A=7316 → 6798, B=884 → 1402
[TX041] Transfer $412: A=6798 → 6386, B=1402 → 1814
[TX042] Transfer $687: B=1814 → 1127, A=6386 → 7073
[TX043] Transfer $933: B=1127 → 194, A=7073 → 8006
[TX044] Transfer $73: B=194 → 121, A=8006 → 8079
[TX045] Transfer $328: A=8079 → 7751, B=121 → 449
[TX046] Transfer $185: B=449 → 264, A=7751 → 7936
[TX047] Transfer $155: B=264 → 109, A=7936 → 8091
[TX048] Transfer $292: A=8091 → 7799, B=109 → 401
[TX049] Transfer $293: B=401 → 108, A=7799 → 8092
[TX050] Transfer $395: A=8092 → 7697, B=108 → 503
[TX051] Transfer $650: A=7697 → 7047, B=503 → 1153
[TX052] Transfer $697: B=1153 → 456, A=7047 → 7744
[TX053] Transfer $25: A=7744 → 7719, B=456 → 481
[TX054] Transfer $967: A=7719 → 6752, B=481 → 1448
[TX055] Transfer $838: B=1448 → 610, A=6752 → 7590
[TX056] Transfer $188: B=610 → 422, A=7590 → 7778
[TX057] Transfer $319: A=7778 → 7459, B=422 → 741
[TX058] Transfer $272: B=741 → 469, A=7459 → 7731
[TX059] Transfer $687: A=7731 → 7044, B=469 → 1156
[TX060] Transfer $4: A=7044 → 7040, B=1156 → 1160
[TX061] Transfer $707: A=7040 → 6333, B=1160 → 1867
[TX062] Transfer $561: A=6333 → 5772, B=1867 → 2428
[TX063] Transfer $90: B=2428 → 2338, A=5772 → 5862
[TX064] Transfer $810: B=2338 → 1528, A=5862 → 6672
[TX065] Transfer $90: A=6672 → 6582, B=1528 → 1618
[TX066] Transfer $288: A=6582 → 6294, B=1618 → 1906
[TX067] Transfer $509: A=6294 → 5785, B=1906 → 2415
[TX068] Transfer $979: A=5785 → 4806, B=2415 → 3394
[TX069] Transfer $902: A=4806 → 3904, B=3394 → 4296
[TX070] Transfer $329: A=3904 → 3575, B=4296 → 4625
[TX071] Transfer $392: B=4625 → 4233, A=3575 → 3967
[TX072] Transfer $93: A=3967 → 3874, B=4233 → 4326
[TX073] Transfer $741: A=3874 → 3133, B=4326 → 5067
[TX074] Transfer $540: A=3133 → 2593, B=5067 → 5607
[TX075] Transfer $568: A=2593 → 2025, B=5607 → 6175
[TX076] Transfer $746: B=6175 → 5429, A=2025 → 2771
[TX077] Transfer $876: A=2771 → 1895, B=5429 → 6305
[TX078] Transfer $541: A=1895 → 1354, B=6305 → 6846
[TX079] Transfer $717: A=1354 → 637, B=6846 → 7563
[TX080] Transfer $345: B=7563 → 7218, A=637 → 982
[TX081] Transfer $638: A=982 → 344, B=7218 → 7856
[TX082] Transfer $238: A=344 → 106, B=7856 → 8094
[TX083] Transfer $650: B=8094 → 7444, A=106 → 756
[TX084] Transfer $436: B=7444 → 7008, A=756 → 1192
[TX085] Transfer $790: A=1192 → 402, B=7008 → 7798
[TX086] Transfer $176: B=7798 → 7622, A=402 → 578
[TX087] Transfer $73: A=578 → 505, B=7622 → 7695
[TX088] Transfer $268: A=505 → 237, B=7695 → 7963
[TX089] Transfer $79: A=237 → 158, B=7963 → 8042
POSSIBLE BUG TYPES (choose exactly one):
- CALC_ERROR: Mathematical calculation is incorrect
- NEGATIVE_BAL: Account balance becomes negative
- LOST_UPDATE: Concurrent update causes lost transaction
- DUPLICATE_TXN: Same transaction processed multiple times
Identify the SINGLE bug if any exists.
Respond with ONLY a JSON object:
{"bug_type": "<type>", "bug_location": "<TX_ID>"
Your response:
|
NEGATIVE_BAL
|
TX026
|
Account balance goes negative
|
NEGATIVE_BAL
| 89
|
{"bug_type": "NEGATIVE_BAL", "bug_location": "TX026", "explanation": "Account balance goes negative"}
|
{"bug_type": "NEGATIVE_BAL", "n_ops": 89}
|
80
|
Analyze this banking transaction log for bugs.
Each operation shows the complete state change.
INITIAL STATE:
{
"account_A": 4000,
"account_B": 4200,
"total": 8200
}
RULES:
1. Total money must remain constant (conservation)
2. No account can go negative
3. All calculations must be mathematically correct
TRANSACTION LOG:
[TX001] Transfer $347: B=4200 → 3853, A=4000 → 4347
[TX002] Transfer $743: B=3853 → 3110, A=4347 → 5090
[TX003] Transfer $602: A=5090 → 4488, B=3110 → 3712
[TX004] Transfer $416: B=3712 → 3296, A=4488 → 4904
[TX005] Transfer $888: B=3296 → 2408, A=4904 → 5792
[TX006] Transfer $869: A=5792 → 4923, B=2408 → 3277
[TX007] Transfer $46: A=4923 → 4877, B=3277 → 3323
[TX008] Transfer $166: A=4877 → 4711, B=3323 → 3489
[TX009] Transfer $202: B=3489 → 3287, A=4711 → 4913
[TX010] Transfer $823: B=3287 → 2464, A=4913 → 5736
[TX011] Transfer $885: A=5736 → 4851, B=2464 → 3349
[TX012] Transfer $727: A=4851 → 4124, B=3349 → 4076
[TX013] Transfer $320: B=4076 → 3756, A=4124 → 4444
[TX014] Transfer $845: B=3756 → 2911, A=4444 → 5289
[TX015] Transfer $147: A=5289 → 5142, B=2911 → 3058
[TX016] Transfer $56: A=5142 → 5086, B=3058 → 3114
[TX017] Transfer $169: A=5086 → 4917, B=3114 → 3283
[TX018] Transfer $109: A=4917 → 4808, B=3283 → 3392
[TX019] Transfer $84: B=3392 → 3308, A=4808 → 4892
[TX020] Transfer $35: A=4892 → 4857, B=3308 → 3343
[TX021] Transfer $306: A=4857 → 4551, B=3343 → 3649
[TX022] Transfer $248: B=3649 → 3401, A=4551 → 4799
[TX023] Transfer $767: A=4799 → 4032, B=3401 → 4168
[TX024] Transfer $782: A=4032 → 3250, B=4168 → 4950
[TX025] Transfer $801: B=4950 → 4149, A=3250 → 4051
[TX026] Transfer $907: A=4051 → 3144, B=4149 → 5056
[TX027] Transfer $702: A=3144 → 2442, B=5056 → 5758
[TX028] Payment PAY1023: Transfer $102: A=2442 → 2340, B=5758 → 5860
[TX029] Transfer $843: B=5860 → 5017, A=2340 → 3183
[TX030] Transfer $945: B=5017 → 4072, A=3183 → 4128
[TX031] Transfer $80: A=4128 → 4048, B=4072 → 4152
[TX032] Transfer $350: A=4048 → 3698, B=4152 → 4502
[TX033] Transfer $544: A=3698 → 3154, B=4502 → 5046
[TX034] Transfer $25: A=3154 → 3129, B=5046 → 5071
[TX035] Transfer $573: B=5071 → 4498, A=3129 → 3702
[TX036] Transfer $484: B=4498 → 4014, A=3702 → 4186
[TX037] Transfer $615: A=4186 → 3571, B=4014 → 4629
[TX038] Transfer $481: A=3571 → 3090, B=4629 → 5110
[TX039] Transfer $110: A=3090 → 2980, B=5110 → 5220
[TX040] Transfer $567: B=5220 → 4653, A=2980 → 3547
[TX041] Transfer $856: A=3547 → 2691, B=4653 → 5509
[TX042] Transfer $917: A=2691 → 1774, B=5509 → 6426
[TX043] Payment PAY1023: Transfer $102: A=1774 → 1672, B=6426 → 6528
[TX044] Transfer $259: A=1672 → 1413, B=6528 → 6787
[TX045] Transfer $795: B=6787 → 5992, A=1413 → 2208
[TX046] Transfer $498: A=2208 → 1710, B=5992 → 6490
[TX047] Transfer $43: B=6490 → 6447, A=1710 → 1753
[TX048] Transfer $575: B=6447 → 5872, A=1753 → 2328
[TX049] Transfer $188: A=2328 → 2140, B=5872 → 6060
[TX050] Transfer $691: B=6060 → 5369, A=2140 → 2831
[TX051] Transfer $478: B=5369 → 4891, A=2831 → 3309
[TX052] Transfer $175: A=3309 → 3134, B=4891 → 5066
[TX053] Transfer $200: B=5066 → 4866, A=3134 → 3334
[TX054] Transfer $899: A=3334 → 2435, B=4866 → 5765
[TX055] Transfer $168: B=5765 → 5597, A=2435 → 2603
[TX056] Transfer $601: A=2603 → 2002, B=5597 → 6198
[TX057] Transfer $618: A=2002 → 1384, B=6198 → 6816
[TX058] Transfer $869: B=6816 → 5947, A=1384 → 2253
[TX059] Transfer $409: B=5947 → 5538, A=2253 → 2662
[TX060] Transfer $400: B=5538 → 5138, A=2662 → 3062
[TX061] Transfer $69: B=5138 → 5069, A=3062 → 3131
[TX062] Transfer $253: B=5069 → 4816, A=3131 → 3384
[TX063] Transfer $93: B=4816 → 4723, A=3384 → 3477
[TX064] Transfer $755: B=4723 → 3968, A=3477 → 4232
[TX065] Transfer $918: A=4232 → 3314, B=3968 → 4886
[TX066] Transfer $399: B=4886 → 4487, A=3314 → 3713
[TX067] Transfer $493: A=3713 → 3220, B=4487 → 4980
[TX068] Transfer $204: A=3220 → 3016, B=4980 → 5184
[TX069] Transfer $965: B=5184 → 4219, A=3016 → 3981
[TX070] Transfer $290: B=4219 → 3929, A=3981 → 4271
[TX071] Transfer $636: A=4271 → 3635, B=3929 → 4565
[TX072] Transfer $297: A=3635 → 3338, B=4565 → 4862
[TX073] Transfer $227: B=4862 → 4635, A=3338 → 3565
[TX074] Transfer $310: A=3565 → 3255, B=4635 → 4945
[TX075] Transfer $617: A=3255 → 2638, B=4945 → 5562
[TX076] Transfer $325: A=2638 → 2313, B=5562 → 5887
[TX077] Transfer $152: A=2313 → 2161, B=5887 → 6039
[TX078] Transfer $935: A=2161 → 1226, B=6039 → 6974
[TX079] Transfer $489: A=1226 → 737, B=6974 → 7463
[TX080] Transfer $717: B=7463 → 6746, A=737 → 1454
[TX081] Transfer $732: B=6746 → 6014, A=1454 → 2186
[TX082] Transfer $685: A=2186 → 1501, B=6014 → 6699
[TX083] Transfer $319: B=6699 → 6380, A=1501 → 1820
[TX084] Transfer $5: A=1820 → 1815, B=6380 → 6385
[TX085] Transfer $841: B=6385 → 5544, A=1815 → 2656
[TX086] Transfer $935: A=2656 → 1721, B=5544 → 6479
[TX087] Transfer $267: B=6479 → 6212, A=1721 → 1988
[TX088] Transfer $519: A=1988 → 1469, B=6212 → 6731
POSSIBLE BUG TYPES (choose exactly one):
- CALC_ERROR: Mathematical calculation is incorrect
- NEGATIVE_BAL: Account balance becomes negative
- LOST_UPDATE: Concurrent update causes lost transaction
- DUPLICATE_TXN: Same transaction processed multiple times
Identify the SINGLE bug if any exists.
Respond with ONLY a JSON object:
{"bug_type": "<type>", "bug_location": "<TX_ID>"
Your response:
|
DUPLICATE_TXN
|
TX043
|
Payment PAY1023 processed twice
|
DUPLICATE_TXN
| 88
|
{"bug_type": "DUPLICATE_TXN", "bug_location": "TX043", "explanation": "Payment PAY1023 processed twice"}
|
{"bug_type": "DUPLICATE_TXN", "n_ops": 88}
|
49
|
Analyze this banking transaction log for bugs.
Each operation shows the complete state change.
INITIAL STATE:
{
"account_A": 4000,
"account_B": 4200,
"total": 8200
}
RULES:
1. Total money must remain constant (conservation)
2. No account can go negative
3. All calculations must be mathematically correct
TRANSACTION LOG:
[TX001] Transfer $555: A=4000 → 3445, B=4200 → 4755
[TX002] Transfer $287: B=4755 → 4468, A=3445 → 3732
[TX003] Transfer $305: A=3732 → 3427, B=4468 → 4773
[TX004] Transfer $917: B=4773 → 3856, A=3427 → 4344
[TX005] Transfer $331: B=3856 → 3525, A=4344 → 4675
[TX006] Transfer $2: A=4675 → 4673, B=3525 → 3527
[TX007] Transfer $727: A=4673 → 3946, B=3527 → 4254
[TX008] Transfer $947: B=4254 → 3307, A=3946 → 4893
[TX009] Transfer $775: A=4893 → 4118, B=3307 → 4082
[TX010] Transfer $149: B=4082 → 3933, A=4118 → 4267
[TX011] Transfer $784: B=3933 → 3149, A=4267 → 5051
[TX012] Transfer $807: A=5051 → 4244, B=3149 → 3956
[TX013] Transfer $402: A=4244 → 3842, B=3956 → 4358
[TX014] Transfer $856: A=3842 → 2986, B=4358 → 5214
[TX015] Transfer $233: B=5214 → 4981, A=2986 → 3219
[TX016] Transfer $916: B=4981 → 4065, A=3219 → 4135
[TX017] Transfer $745: B=4065 → 3320, A=4135 → 4880
[TX018] Transfer $456: A=4880 → 4424, B=3320 → 3776
[TX019] Transfer $780: A=4424 → 3644, B=3776 → 4556
[TX020] Transfer $654: B=4556 → 3902, A=3644 → 4298
[TX021] Transfer $538: A=4298 → 3760, B=3902 → 4440
[TX022] Transfer $239: A=3760 → 3521, B=4440 → 4679
[TX023] Transfer $843: B=4679 → 3836, A=3521 → 4365
[TX024] Transfer $74: B=3836 → 3762, A=4364 → 4438
[TX025] Transfer $974: B=3762 → 2788, A=4438 → 5412
[TX026] Transfer $860: A=5412 → 4552, B=2788 → 3648
[TX027] Transfer $643: B=3648 → 3005, A=4552 → 5195
[TX028] Transfer $601: B=3005 → 2404, A=5195 → 5796
[TX029] Transfer $778: A=5796 → 5018, B=2404 → 3182
[TX030] Transfer $537: B=3182 → 2645, A=5018 → 5555
[TX031] Transfer $751: A=5555 → 4804, B=2645 → 3396
[TX032] Transfer $892: B=3396 → 2504, A=4804 → 5696
[TX033] Transfer $433: B=2504 → 2071, A=5696 → 6129
[TX034] Transfer $887: A=6129 → 5242, B=2071 → 2958
[TX035] Transfer $928: B=2958 → 2030, A=5242 → 6170
[TX036] Transfer $431: B=2030 → 1599, A=6170 → 6601
[TX037] Transfer $87: B=1599 → 1512, A=6601 → 6688
[TX038] Transfer $732: A=6688 → 5956, B=1512 → 2244
[TX039] Transfer $601: B=2244 → 1643, A=5956 → 6557
[TX040] Transfer $607: B=1643 → 1036, A=6557 → 7164
[TX041] Transfer $108: B=1036 → 928, A=7164 → 7272
[TX042] Transfer $623: B=928 → 305, A=7272 → 7895
[TX043] Transfer $156: B=305 → 149, A=7895 → 8051
[TX044] Transfer $591: A=8051 → 7460, B=149 → 740
[TX045] Transfer $991: A=7460 → 6469, B=740 → 1731
[TX046] Transfer $596: A=6469 → 5873, B=1731 → 2327
[TX047] Transfer $737: B=2327 → 1590, A=5873 → 6610
[TX048] Transfer $664: A=6610 → 5946, B=1590 → 2254
[TX049] Transfer $589: B=2254 → 1665, A=5946 → 6535
[TX050] Transfer $834: A=6535 → 5701, B=1665 → 2499
[TX051] Transfer $223: B=2499 → 2276, A=5701 → 5924
[TX052] Transfer $647: A=5924 → 5277, B=2276 → 2923
[TX053] Transfer $301: B=2923 → 2622, A=5277 → 5578
[TX054] Transfer $748: B=2622 → 1874, A=5578 → 6326
[TX055] Transfer $369: B=1874 → 1505, A=6326 → 6695
[TX056] Transfer $998: B=1505 → 507, A=6695 → 7693
[TX057] Transfer $458: A=7693 → 7235, B=507 → 965
[TX058] Transfer $471: A=7235 → 6764, B=965 → 1436
[TX059] Transfer $216: B=1436 → 1220, A=6764 → 6980
[TX060] Transfer $773: B=1220 → 447, A=6980 → 7753
[TX061] Transfer $257: B=447 → 190, A=7753 → 8010
[TX062] Transfer $362: A=8010 → 7648, B=190 → 552
[TX063] Transfer $850: A=7648 → 6798, B=552 → 1402
[TX064] Transfer $938: B=1402 → 464, A=6798 → 7736
[TX065] Transfer $322: A=7736 → 7414, B=464 → 786
[TX066] Transfer $393: B=786 → 393, A=7414 → 7807
[TX067] Transfer $878: A=7807 → 6929, B=393 → 1271
[TX068] Transfer $347: B=1271 → 924, A=6929 → 7276
[TX069] Transfer $774: B=924 → 150, A=7276 → 8050
[TX070] Transfer $332: A=8050 → 7718, B=150 → 482
[TX071] Transfer $196: A=7718 → 7522, B=482 → 678
[TX072] Transfer $575: B=678 → 103, A=7522 → 8097
[TX073] Transfer $635: A=8097 → 7462, B=103 → 738
[TX074] Transfer $97: A=7462 → 7365, B=738 → 835
[TX075] Transfer $874: A=7365 → 6491, B=835 → 1709
[TX076] Transfer $735: B=1709 → 974, A=6491 → 7226
[TX077] Transfer $408: B=974 → 566, A=7226 → 7634
[TX078] Transfer $108: A=7634 → 7526, B=566 → 674
[TX079] Transfer $333: B=674 → 341, A=7526 → 7859
[TX080] Transfer $847: A=7859 → 7012, B=341 → 1188
[TX081] Transfer $563: A=7012 → 6449, B=1188 → 1751
[TX082] Transfer $28: A=6449 → 6421, B=1751 → 1779
[TX083] Transfer $855: B=1779 → 924, A=6421 → 7276
[TX084] Transfer $898: A=7276 → 6378, B=924 → 1822
[TX085] Transfer $665: A=6378 → 5713, B=1822 → 2487
[TX086] Transfer $14: A=5713 → 5699, B=2487 → 2501
[TX087] Transfer $989: B=2501 → 1512, A=5699 → 6688
[TX088] Transfer $860: A=6688 → 5828, B=1512 → 2372
[TX089] Transfer $571: B=2372 → 1801, A=5828 → 6399
[TX090] Transfer $192: A=6399 → 6207, B=1801 → 1993
[TX091] Transfer $766: B=1993 → 1227, A=6207 → 6973
[TX092] Transfer $824: B=1227 → 403, A=6973 → 7797
[TX093] Transfer $191: B=403 → 212, A=7797 → 7988
[TX094] Transfer $42: B=212 → 170, A=7988 → 8030
[TX095] Transfer $19: B=170 → 151, A=8030 → 8049
[TX096] Transfer $36: B=151 → 115, A=8049 → 8085
[TX097] Transfer $941: A=8085 → 7144, B=115 → 1056
[TX098] Transfer $109: B=1056 → 947, A=7144 → 7253
[TX099] Transfer $736: A=7253 → 6517, B=947 → 1683
[TX100] Transfer $277: A=6517 → 6240, B=1683 → 1960
[TX101] Transfer $635: A=6240 → 5605, B=1960 → 2595
[TX102] Transfer $607: B=2595 → 1988, A=5605 → 6212
[TX103] Transfer $978: B=1988 → 1010, A=6212 → 7190
[TX104] Transfer $575: A=7190 → 6615, B=1010 → 1585
[TX105] Transfer $919: B=1585 → 666, A=6615 → 7534
[TX106] Transfer $153: B=666 → 513, A=7534 → 7687
[TX107] Transfer $68: A=7687 → 7619, B=513 → 581
[TX108] Transfer $461: B=581 → 120, A=7619 → 8080
[TX109] Transfer $443: A=8080 → 7637, B=120 → 563
[TX110] Transfer $222: A=7637 → 7415, B=563 → 785
POSSIBLE BUG TYPES (choose exactly one):
- CALC_ERROR: Mathematical calculation is incorrect
- NEGATIVE_BAL: Account balance becomes negative
- LOST_UPDATE: Concurrent update causes lost transaction
- DUPLICATE_TXN: Same transaction processed multiple times
Identify the SINGLE bug if any exists.
Respond with ONLY a JSON object:
{"bug_type": "<type>", "bug_location": "<TX_ID>"
Your response:
|
CALC_ERROR
|
TX023
|
Mathematical calculation is incorrect
|
CALC_ERROR
| 110
|
{"bug_type": "CALC_ERROR", "bug_location": "TX023", "explanation": "Mathematical calculation is incorrect"}
|
{"bug_type": "CALC_ERROR", "n_ops": 110}
|
83
|
Analyze this banking transaction log for bugs.
Each operation shows the complete state change.
INITIAL STATE:
{
"account_A": 4000,
"account_B": 4200,
"total": 8200
}
RULES:
1. Total money must remain constant (conservation)
2. No account can go negative
3. All calculations must be mathematically correct
TRANSACTION LOG:
[TX001] Transfer $873: A=4000 → 3127, B=4200 → 5073
[TX002] Transfer $253: A=3127 → 2874, B=5073 → 5326
[TX003] Transfer $296: B=5326 → 5030, A=2874 → 3170
[TX004] Transfer $808: A=3170 → 2362, B=5030 → 5838
[TX005] Transfer $405: A=2362 → 1957, B=5838 → 6243
[TX006] Transfer $42: A=1957 → 1915, B=6243 → 6285
[TX007] Transfer $410: A=1915 → 1505, B=6285 → 6695
[TX008] Transfer $942: A=1505 → 563, B=6695 → 7637
[TX009] Transfer $987: B=7637 → 6650, A=563 → 1550
[TX010] Transfer $200: B=6650 → 6450, A=1550 → 1750
[TX011] Transfer $490: A=1750 → 1260, B=6450 → 6940
[TX012] Transfer $21: B=6940 → 6919, A=1260 → 1281
[TX013] Transfer $53: A=1281 → 1228, B=6919 → 6972
[TX014] Transfer $253: A=1228 → 975, B=6972 → 7225
[TX015] Transfer $553: B=7225 → 6672, A=975 → 1528
[TX016] Transfer $166: A=1528 → 1362, B=6672 → 6838
[TX017] Transfer $97: B=6838 → 6741, A=1362 → 1459
[TX018] Transfer $393: A=1459 → 1066, B=6741 → 7134
[TX019] Transfer $431: A=1066 → 635, B=7134 → 7565
[TX020] Transfer $474: A=635 → 161, B=7565 → 8039
[TX021] Transfer $330: B=8039 → 7709, A=161 → 491
[TX022] Transfer $411: B=7709 → 7298, A=491 → 902
[TX023] Transfer $58: A=902 → 844, B=7298 → 7356
[TX024] Transfer $893: B=7356 → 6463, A=844 → 1737
[TX025] Transfer $1747: A=1737 → -10, B=6463 → 8210
[TX026] Balance check: A=-10
[TX027] Balance check: A=-10
[TX028] Transfer $476: B=8210 → 7734, A=-10 → 466
[TX029] Transfer $140: A=466 → 326, B=7734 → 7874
[TX030] Transfer $457: B=7874 → 7417, A=326 → 783
[TX031] Transfer $879: B=7417 → 6538, A=783 → 1662
[TX032] Transfer $212: A=1662 → 1450, B=6538 → 6750
[TX033] Transfer $119: A=1450 → 1331, B=6750 → 6869
[TX034] Transfer $291: A=1331 → 1040, B=6869 → 7160
[TX035] Transfer $308: A=1040 → 732, B=7160 → 7468
[TX036] Transfer $103: A=732 → 629, B=7468 → 7571
[TX037] Transfer $284: B=7571 → 7287, A=629 → 913
[TX038] Transfer $939: B=7287 → 6348, A=913 → 1852
[TX039] Transfer $184: A=1852 → 1668, B=6348 → 6532
[TX040] Transfer $676: B=6532 → 5856, A=1668 → 2344
[TX041] Transfer $490: B=5856 → 5366, A=2344 → 2834
[TX042] Transfer $434: B=5366 → 4932, A=2834 → 3268
[TX043] Transfer $620: A=3268 → 2648, B=4932 → 5552
[TX044] Transfer $640: B=5552 → 4912, A=2648 → 3288
[TX045] Transfer $903: A=3288 → 2385, B=4912 → 5815
[TX046] Transfer $486: B=5815 → 5329, A=2385 → 2871
[TX047] Transfer $104: B=5329 → 5225, A=2871 → 2975
[TX048] Transfer $90: B=5225 → 5135, A=2975 → 3065
[TX049] Transfer $178: B=5135 → 4957, A=3065 → 3243
[TX050] Transfer $44: B=4957 → 4913, A=3243 → 3287
[TX051] Transfer $575: A=3287 → 2712, B=4913 → 5488
[TX052] Transfer $317: A=2712 → 2395, B=5488 → 5805
[TX053] Transfer $81: B=5805 → 5724, A=2395 → 2476
[TX054] Transfer $226: B=5724 → 5498, A=2476 → 2702
[TX055] Transfer $440: B=5498 → 5058, A=2702 → 3142
[TX056] Transfer $515: B=5058 → 4543, A=3142 → 3657
[TX057] Transfer $461: B=4543 → 4082, A=3657 → 4118
[TX058] Transfer $369: A=4118 → 3749, B=4082 → 4451
[TX059] Transfer $765: B=4451 → 3686, A=3749 → 4514
[TX060] Transfer $864: A=4514 → 3650, B=3686 → 4550
[TX061] Transfer $574: A=3650 → 3076, B=4550 → 5124
[TX062] Transfer $706: A=3076 → 2370, B=5124 → 5830
[TX063] Transfer $204: B=5830 → 5626, A=2370 → 2574
[TX064] Transfer $66: B=5626 → 5560, A=2574 → 2640
[TX065] Transfer $611: A=2640 → 2029, B=5560 → 6171
[TX066] Transfer $514: B=6171 → 5657, A=2029 → 2543
[TX067] Transfer $495: B=5657 → 5162, A=2543 → 3038
[TX068] Transfer $95: B=5162 → 5067, A=3038 → 3133
[TX069] Transfer $242: B=5067 → 4825, A=3133 → 3375
[TX070] Transfer $857: B=4825 → 3968, A=3375 → 4232
[TX071] Transfer $490: A=4232 → 3742, B=3968 → 4458
[TX072] Transfer $690: A=3742 → 3052, B=4458 → 5148
[TX073] Transfer $314: B=5148 → 4834, A=3052 → 3366
[TX074] Transfer $756: B=4834 → 4078, A=3366 → 4122
[TX075] Transfer $229: A=4122 → 3893, B=4078 → 4307
[TX076] Transfer $284: B=4307 → 4023, A=3893 → 4177
[TX077] Transfer $54: A=4177 → 4123, B=4023 → 4077
[TX078] Transfer $86: B=4077 → 3991, A=4123 → 4209
[TX079] Transfer $901: B=3991 → 3090, A=4209 → 5110
[TX080] Transfer $919: B=3090 → 2171, A=5110 → 6029
[TX081] Transfer $136: B=2171 → 2035, A=6029 → 6165
[TX082] Transfer $415: B=2035 → 1620, A=6165 → 6580
[TX083] Transfer $676: A=6580 → 5904, B=1620 → 2296
[TX084] Transfer $533: B=2296 → 1763, A=5904 → 6437
[TX085] Transfer $962: B=1763 → 801, A=6437 → 7399
[TX086] Transfer $465: A=7399 → 6934, B=801 → 1266
[TX087] Transfer $592: B=1266 → 674, A=6934 → 7526
[TX088] Transfer $797: A=7526 → 6729, B=674 → 1471
[TX089] Transfer $43: B=1471 → 1428, A=6729 → 6772
[TX090] Transfer $22: B=1428 → 1406, A=6772 → 6794
[TX091] Transfer $374: B=1406 → 1032, A=6794 → 7168
[TX092] Transfer $36: B=1032 → 996, A=7168 → 7204
[TX093] Transfer $235: B=996 → 761, A=7204 → 7439
[TX094] Transfer $275: A=7439 → 7164, B=761 → 1036
[TX095] Transfer $218: B=1036 → 818, A=7164 → 7382
[TX096] Transfer $496: A=7382 → 6886, B=818 → 1314
[TX097] Transfer $24: B=1314 → 1290, A=6886 → 6910
[TX098] Transfer $719: B=1290 → 571, A=6910 → 7629
[TX099] Transfer $189: A=7629 → 7440, B=571 → 760
[TX100] Transfer $422: A=7440 → 7018, B=760 → 1182
[TX101] Transfer $796: B=1182 → 386, A=7018 → 7814
[TX102] Transfer $791: A=7814 → 7023, B=386 → 1177
[TX103] Transfer $338: B=1177 → 839, A=7023 → 7361
[TX104] Transfer $694: A=7361 → 6667, B=839 → 1533
[TX105] Transfer $484: A=6667 → 6183, B=1533 → 2017
[TX106] Transfer $211: A=6183 → 5972, B=2017 → 2228
[TX107] Transfer $715: B=2228 → 1513, A=5972 → 6687
[TX108] Transfer $26: B=1513 → 1487, A=6687 → 6713
POSSIBLE BUG TYPES (choose exactly one):
- CALC_ERROR: Mathematical calculation is incorrect
- NEGATIVE_BAL: Account balance becomes negative
- LOST_UPDATE: Concurrent update causes lost transaction
- DUPLICATE_TXN: Same transaction processed multiple times
Identify the SINGLE bug if any exists.
Respond with ONLY a JSON object:
{"bug_type": "<type>", "bug_location": "<TX_ID>"
Your response:
|
NEGATIVE_BAL
|
TX025
|
Account balance goes negative
|
NEGATIVE_BAL
| 108
|
{"bug_type": "NEGATIVE_BAL", "bug_location": "TX025", "explanation": "Account balance goes negative"}
|
{"bug_type": "NEGATIVE_BAL", "n_ops": 108}
|
26
|
Analyze this banking transaction log for bugs.
Each operation shows the complete state change.
INITIAL STATE:
{
"account_A": 4000,
"account_B": 4200,
"total": 8200
}
RULES:
1. Total money must remain constant (conservation)
2. No account can go negative
3. All calculations must be mathematically correct
TRANSACTION LOG:
[TX001] Transfer $508: B=4200 → 3692, A=4000 → 4508
[TX002] Transfer $786: B=3692 → 2906, A=4508 → 5294
[TX003] Transfer $64: B=2906 → 2842, A=5294 → 5358
[TX004] Transfer $133: A=5358 → 5225, B=2842 → 2975
[TX005] Transfer $830: B=2975 → 2145, A=5225 → 6055
[TX006] Transfer $391: A=6055 → 5664, B=2145 → 2536
[TX007] Transfer $355: A=5664 → 5309, B=2536 → 2891
[TX008] Transfer $361: B=2891 → 2530, A=5309 → 5670
[TX009] Transfer $255: A=5670 → 5415, B=2530 → 2784
[TX010] Transfer $934: B=2785 → 1851, A=5415 → 6349
[TX011] Transfer $119: A=6349 → 6230, B=1851 → 1970
[TX012] Transfer $22: B=1970 → 1948, A=6230 → 6252
[TX013] Transfer $473: B=1948 → 1475, A=6252 → 6725
[TX014] Transfer $275: B=1475 → 1200, A=6725 → 7000
[TX015] Transfer $604: A=7000 → 6396, B=1200 → 1804
[TX016] Transfer $388: A=6396 → 6008, B=1804 → 2192
[TX017] Transfer $588: B=2192 → 1604, A=6008 → 6596
[TX018] Transfer $104: A=6596 → 6492, B=1604 → 1708
[TX019] Transfer $510: A=6492 → 5982, B=1708 → 2218
[TX020] Transfer $631: B=2218 → 1587, A=5982 → 6613
[TX021] Transfer $994: B=1587 → 593, A=6613 → 7607
[TX022] Transfer $256: B=593 → 337, A=7607 → 7863
[TX023] Transfer $296: A=7863 → 7567, B=337 → 633
[TX024] Transfer $306: B=633 → 327, A=7567 → 7873
[TX025] Transfer $161: B=327 → 166, A=7873 → 8034
[TX026] Transfer $608: A=8034 → 7426, B=166 → 774
[TX027] Transfer $70: B=774 → 704, A=7426 → 7496
[TX028] Transfer $216: B=704 → 488, A=7496 → 7712
[TX029] Transfer $335: B=488 → 153, A=7712 → 8047
[TX030] Transfer $29: B=153 → 124, A=8047 → 8076
[TX031] Transfer $15: B=124 → 109, A=8076 → 8091
[TX032] Transfer $9: B=109 → 100, A=8091 → 8100
[TX033] Transfer $644: A=8100 → 7456, B=100 → 744
[TX034] Transfer $220: A=7456 → 7236, B=744 → 964
[TX035] Transfer $655: B=964 → 309, A=7236 → 7891
[TX036] Transfer $135: B=309 → 174, A=7891 → 8026
[TX037] Transfer $475: A=8026 → 7551, B=174 → 649
[TX038] Transfer $156: A=7551 → 7395, B=649 → 805
[TX039] Transfer $422: B=805 → 383, A=7395 → 7817
[TX040] Transfer $106: B=383 → 277, A=7817 → 7923
[TX041] Transfer $75: B=277 → 202, A=7923 → 7998
[TX042] Transfer $705: A=7998 → 7293, B=202 → 907
[TX043] Transfer $246: A=7293 → 7047, B=907 → 1153
[TX044] Transfer $198: A=7047 → 6849, B=1153 → 1351
[TX045] Transfer $818: A=6849 → 6031, B=1351 → 2169
[TX046] Transfer $499: B=2169 → 1670, A=6031 → 6530
[TX047] Transfer $664: B=1670 → 1006, A=6530 → 7194
[TX048] Transfer $165: A=7194 → 7029, B=1006 → 1171
[TX049] Transfer $31: B=1171 → 1140, A=7029 → 7060
[TX050] Transfer $676: B=1140 → 464, A=7060 → 7736
[TX051] Transfer $988: A=7736 → 6748, B=464 → 1452
[TX052] Transfer $58: B=1452 → 1394, A=6748 → 6806
[TX053] Transfer $618: A=6806 → 6188, B=1394 → 2012
[TX054] Transfer $924: B=2012 → 1088, A=6188 → 7112
[TX055] Transfer $689: B=1088 → 399, A=7112 → 7801
[TX056] Transfer $967: A=7801 → 6834, B=399 → 1366
[TX057] Transfer $116: A=6834 → 6718, B=1366 → 1482
[TX058] Transfer $510: A=6718 → 6208, B=1482 → 1992
[TX059] Transfer $616: A=6208 → 5592, B=1992 → 2608
[TX060] Transfer $339: A=5592 → 5253, B=2608 → 2947
[TX061] Transfer $959: B=2947 → 1988, A=5253 → 6212
[TX062] Transfer $149: B=1988 → 1839, A=6212 → 6361
[TX063] Transfer $221: A=6361 → 6140, B=1839 → 2060
[TX064] Transfer $420: B=2060 → 1640, A=6140 → 6560
[TX065] Transfer $504: B=1640 → 1136, A=6560 → 7064
[TX066] Transfer $326: B=1136 → 810, A=7064 → 7390
[TX067] Transfer $701: B=810 → 109, A=7390 → 8091
[TX068] Transfer $902: A=8091 → 7189, B=109 → 1011
[TX069] Transfer $488: A=7189 → 6701, B=1011 → 1499
[TX070] Transfer $23: B=1499 → 1476, A=6701 → 6724
[TX071] Transfer $709: A=6724 → 6015, B=1476 → 2185
[TX072] Transfer $567: A=6015 → 5448, B=2185 → 2752
[TX073] Transfer $656: B=2752 → 2096, A=5448 → 6104
[TX074] Transfer $549: B=2096 → 1547, A=6104 → 6653
[TX075] Transfer $399: A=6653 → 6254, B=1547 → 1946
[TX076] Transfer $951: A=6254 → 5303, B=1946 → 2897
[TX077] Transfer $94: B=2897 → 2803, A=5303 → 5397
[TX078] Transfer $217: A=5397 → 5180, B=2803 → 3020
[TX079] Transfer $648: A=5180 → 4532, B=3020 → 3668
[TX080] Transfer $810: B=3668 → 2858, A=4532 → 5342
[TX081] Transfer $889: A=5342 → 4453, B=2858 → 3747
[TX082] Transfer $484: A=4453 → 3969, B=3747 → 4231
[TX083] Transfer $736: B=4231 → 3495, A=3969 → 4705
[TX084] Transfer $846: B=3495 → 2649, A=4705 → 5551
[TX085] Transfer $520: A=5551 → 5031, B=2649 → 3169
[TX086] Transfer $432: A=5031 → 4599, B=3169 → 3601
[TX087] Transfer $713: B=3601 → 2888, A=4599 → 5312
[TX088] Transfer $658: A=5312 → 4654, B=2888 → 3546
[TX089] Transfer $812: A=4654 → 3842, B=3546 → 4358
[TX090] Transfer $412: A=3842 → 3430, B=4358 → 4770
[TX091] Transfer $323: A=3430 → 3107, B=4770 → 5093
[TX092] Transfer $163: A=3107 → 2944, B=5093 → 5256
[TX093] Transfer $869: A=2944 → 2075, B=5256 → 6125
[TX094] Transfer $464: B=6125 → 5661, A=2075 → 2539
[TX095] Transfer $268: B=5661 → 5393, A=2539 → 2807
[TX096] Transfer $820: A=2807 → 1987, B=5393 → 6213
[TX097] Transfer $88: B=6213 → 6125, A=1987 → 2075
[TX098] Transfer $188: B=6125 → 5937, A=2075 → 2263
POSSIBLE BUG TYPES (choose exactly one):
- CALC_ERROR: Mathematical calculation is incorrect
- NEGATIVE_BAL: Account balance becomes negative
- LOST_UPDATE: Concurrent update causes lost transaction
- DUPLICATE_TXN: Same transaction processed multiple times
Identify the SINGLE bug if any exists.
Respond with ONLY a JSON object:
{"bug_type": "<type>", "bug_location": "<TX_ID>"
Your response:
|
CALC_ERROR
|
TX009
|
Mathematical calculation is incorrect
|
CALC_ERROR
| 98
|
{"bug_type": "CALC_ERROR", "bug_location": "TX009", "explanation": "Mathematical calculation is incorrect"}
|
{"bug_type": "CALC_ERROR", "n_ops": 98}
|
87
|
Analyze this banking transaction log for bugs.
Each operation shows the complete state change.
INITIAL STATE:
{
"account_A": 4000,
"account_B": 4200,
"total": 8200
}
RULES:
1. Total money must remain constant (conservation)
2. No account can go negative
3. All calculations must be mathematically correct
TRANSACTION LOG:
[TX001] Transfer $742: A=4000 → 3258, B=4200 → 4942
[TX002] Transfer $588: B=4942 → 4354, A=3258 → 3846
[TX003] Transfer $447: A=3846 → 3399, B=4354 → 4801
[TX004] Transfer $596: B=4801 → 4205, A=3399 → 3995
[TX005] Transfer $340: A=3995 → 3655, B=4205 → 4545
[TX006] Transfer $569: B=4545 → 3976, A=3655 → 4224
[TX007] Transfer $904: A=4224 → 3320, B=3976 → 4880
[TX008] Transfer $272: B=4880 → 4608, A=3320 → 3592
[TX009] Transfer $562: B=4608 → 4046, A=3592 → 4154
[TX010] Transfer $705: A=4154 → 3449, B=4046 → 4751
[TX011] Transfer $792: B=4751 → 3959, A=3449 → 4241
[TX012] Transfer $765: A=4241 → 3476, B=3959 → 4724
[TX013] Transfer $822: B=4724 → 3902, A=3476 → 4298
[TX014] Transfer $252: A=4298 → 4046, B=3902 → 4154
[TX015] Transfer $579: A=4046 → 3467, B=4154 → 4733
[TX016] Transfer $28: A=3467 → 3439, B=4733 → 4761
[TX017] Transfer $502: B=4761 → 4259, A=3439 → 3941
[TX018] Transfer $196: A=3941 → 3745, B=4259 → 4455
[TX019] Transfer $219: A=3745 → 3526, B=4455 → 4674
[TX020] Transfer $581: A=3526 → 2945, B=4674 → 5255
[TX021] Transfer $267: B=5255 → 4988, A=2945 → 3212
[TX022] Transfer $891: A=3212 → 2321, B=4988 → 5879
[TX023] Transfer $247: A=2321 → 2074, B=5879 → 6126
[TX024] Transfer $959: A=2074 → 1115, B=6126 → 7085
[TX025] Transfer $634: B=7085 → 6451, A=1115 → 1749
[TX026] Transfer $171: A=1749 → 1578, B=6451 → 6622
[TX027] Transfer $942: B=6622 → 5680, A=1578 → 2520
[TX028] Transfer $231: A=2520 → 2289, B=5680 → 5911
[TX029] Transfer $49: B=5911 → 5862, A=2289 → 2338
[TX030] Payment PAY1026: Transfer $704: A=2338 → 1634, B=5862 → 6566
[TX031] Transfer $591: A=1634 → 1043, B=6566 → 7157
[TX032] Transfer $707: A=1043 → 336, B=7157 → 7864
[TX033] Transfer $110: A=336 → 226, B=7864 → 7974
[TX034] Transfer $99: A=226 → 127, B=7974 → 8073
[TX035] Transfer $11: A=127 → 116, B=8073 → 8084
[TX036] Transfer $6: A=116 → 110, B=8084 → 8090
[TX037] Transfer $621: B=8090 → 7469, A=110 → 731
[TX038] Transfer $496: A=731 → 235, B=7469 → 7965
[TX039] Transfer $884: B=7965 → 7081, A=235 → 1119
[TX040] Transfer $864: A=1119 → 255, B=7081 → 7945
[TX041] Transfer $131: B=7945 → 7814, A=255 → 386
[TX042] Transfer $938: B=7814 → 6876, A=386 → 1324
[TX043] Transfer $448: B=6876 → 6428, A=1324 → 1772
[TX044] Transfer $566: A=1772 → 1206, B=6428 → 6994
[TX045] Transfer $32: A=1206 → 1174, B=6994 → 7026
[TX046] Transfer $809: A=1174 → 365, B=7026 → 7835
[TX047] Transfer $220: B=7835 → 7615, A=365 → 585
[TX048] Transfer $398: A=585 → 187, B=7615 → 8013
[TX049] Transfer $937: B=8013 → 7076, A=187 → 1124
[TX050] Transfer $462: A=1124 → 662, B=7076 → 7538
[TX051] Transfer $225: B=7538 → 7313, A=662 → 887
[TX052] Transfer $426: A=887 → 461, B=7313 → 7739
[TX053] Transfer $207: A=461 → 254, B=7739 → 7946
[TX054] Transfer $30: B=7946 → 7916, A=254 → 284
[TX055] Transfer $214: B=7916 → 7702, A=284 → 498
[TX056] Transfer $245: B=7702 → 7457, A=498 → 743
[TX057] Transfer $345: B=7457 → 7112, A=743 → 1088
[TX058] Transfer $640: B=7112 → 6472, A=1088 → 1728
[TX059] Transfer $647: B=6472 → 5825, A=1728 → 2375
[TX060] Transfer $747: B=5825 → 5078, A=2375 → 3122
[TX061] Transfer $812: A=3122 → 2310, B=5078 → 5890
[TX062] Transfer $137: B=5890 → 5753, A=2310 → 2447
[TX063] Transfer $20: B=5753 → 5733, A=2447 → 2467
[TX064] Transfer $802: B=5733 → 4931, A=2467 → 3269
[TX065] Transfer $440: B=4931 → 4491, A=3269 → 3709
[TX066] Transfer $143: B=4491 → 4348, A=3709 → 3852
[TX067] Transfer $864: B=4348 → 3484, A=3852 → 4716
[TX068] Payment PAY1026: Transfer $704: A=4716 → 4012, B=3484 → 4188
[TX069] Transfer $16: B=4188 → 4172, A=4012 → 4028
[TX070] Transfer $725: A=4028 → 3303, B=4172 → 4897
[TX071] Transfer $826: B=4897 → 4071, A=3303 → 4129
[TX072] Transfer $906: B=4071 → 3165, A=4129 → 5035
[TX073] Transfer $748: B=3165 → 2417, A=5035 → 5783
[TX074] Transfer $589: A=5783 → 5194, B=2417 → 3006
[TX075] Transfer $324: B=3006 → 2682, A=5194 → 5518
[TX076] Transfer $108: B=2682 → 2574, A=5518 → 5626
[TX077] Transfer $768: A=5626 → 4858, B=2574 → 3342
[TX078] Transfer $265: B=3342 → 3077, A=4858 → 5123
[TX079] Transfer $605: B=3077 → 2472, A=5123 → 5728
POSSIBLE BUG TYPES (choose exactly one):
- CALC_ERROR: Mathematical calculation is incorrect
- NEGATIVE_BAL: Account balance becomes negative
- LOST_UPDATE: Concurrent update causes lost transaction
- DUPLICATE_TXN: Same transaction processed multiple times
Identify the SINGLE bug if any exists.
Respond with ONLY a JSON object:
{"bug_type": "<type>", "bug_location": "<TX_ID>"
Your response:
|
DUPLICATE_TXN
|
TX068
|
Payment PAY1026 processed twice
|
DUPLICATE_TXN
| 79
|
{"bug_type": "DUPLICATE_TXN", "bug_location": "TX068", "explanation": "Payment PAY1026 processed twice"}
|
{"bug_type": "DUPLICATE_TXN", "n_ops": 79}
|
33
|
Analyze this banking transaction log for bugs.
Each operation shows the complete state change.
INITIAL STATE:
{
"account_A": 4000,
"account_B": 4200,
"total": 8200
}
RULES:
1. Total money must remain constant (conservation)
2. No account can go negative
3. All calculations must be mathematically correct
TRANSACTION LOG:
[TX001] Transfer $434: B=4200 → 3766, A=4000 → 4434
[TX002] Transfer $841: B=3766 → 2925, A=4434 → 5275
[TX003] Transfer $782: B=2925 → 2143, A=5275 → 6057
[TX004] Transfer $876: B=2143 → 1267, A=6057 → 6933
[TX005] Transfer $611: A=6933 → 6322, B=1267 → 1878
[TX006] Transfer $265: A=6322 → 6057, B=1878 → 2143
[TX007] Transfer $315: B=2143 → 1828, A=6057 → 6372
[TX008] Transfer $386: B=1828 → 1442, A=6372 → 6758
[TX009] Transfer $343: B=1442 → 1099, A=6758 → 7101
[TX010] Transfer $202: A=7101 → 6899, B=1099 → 1301
[TX011] Transfer $6: A=6899 → 6893, B=1301 → 1307
[TX012] Transfer $505: A=6893 → 6388, B=1307 → 1812
[TX013] Transfer $964: B=1812 → 848, A=6388 → 7352
[TX014] Transfer $395: B=848 → 453, A=7352 → 7747
[TX015] Transfer $330: B=453 → 123, A=7747 → 8077
[TX016] Transfer $908: A=8077 → 7169, B=123 → 1031
[TX017] Transfer $396: A=7169 → 6773, B=1031 → 1427
[TX018] Transfer $783: A=6773 → 5990, B=1427 → 2210
[TX019] Transfer $791: B=2210 → 1419, A=5990 → 6781
[TX020] Transfer $652: B=1419 → 767, A=6781 → 7433
[TX021] Transfer $396: B=767 → 371, A=7433 → 7829
[TX022] Transfer $126: B=371 → 245, A=7829 → 7955
[TX023] Transfer $257: B=245 → -12, A=7955 → 8212
[TX024] Transfer $269: A=8212 → 7943, B=-12 → 257
[TX025] Transfer $67: B=257 → 190, A=7943 → 8010
[TX026] Transfer $14: A=8010 → 7996, B=190 → 204
[TX027] Transfer $661: A=7996 → 7335, B=204 → 865
[TX028] Transfer $725: B=865 → 140, A=7335 → 8060
[TX029] Transfer $899: A=8060 → 7161, B=140 → 1039
[TX030] Transfer $851: B=1039 → 188, A=7161 → 8012
[TX031] Transfer $40: B=188 → 148, A=8012 → 8052
[TX032] Transfer $48: B=148 → 100, A=8052 → 8100
[TX033] Balance check: B=100
[TX034] Transfer $835: A=8100 → 7265, B=100 → 935
[TX035] Transfer $768: A=7265 → 6497, B=935 → 1703
[TX036] Transfer $717: A=6497 → 5780, B=1703 → 2420
[TX037] Transfer $174: B=2420 → 2246, A=5780 → 5954
[TX038] Transfer $101: B=2246 → 2145, A=5954 → 6055
[TX039] Transfer $539: A=6055 → 5516, B=2145 → 2684
[TX040] Transfer $752: B=2684 → 1932, A=5516 → 6268
[TX041] Transfer $182: B=1932 → 1750, A=6268 → 6450
[TX042] Transfer $722: B=1750 → 1028, A=6450 → 7172
[TX043] Transfer $500: A=7172 → 6672, B=1028 → 1528
[TX044] Transfer $463: A=6672 → 6209, B=1528 → 1991
[TX045] Transfer $207: A=6209 → 6002, B=1991 → 2198
[TX046] Transfer $830: A=6002 → 5172, B=2198 → 3028
[TX047] Transfer $925: A=5172 → 4247, B=3028 → 3953
[TX048] Transfer $643: B=3953 → 3310, A=4247 → 4890
[TX049] Transfer $83: A=4890 → 4807, B=3310 → 3393
[TX050] Transfer $388: B=3393 → 3005, A=4807 → 5195
[TX051] Transfer $67: A=5195 → 5128, B=3005 → 3072
[TX052] Transfer $601: B=3072 → 2471, A=5128 → 5729
[TX053] Transfer $498: A=5729 → 5231, B=2471 → 2969
[TX054] Transfer $64: A=5231 → 5167, B=2969 → 3033
[TX055] Transfer $683: B=3033 → 2350, A=5167 → 5850
[TX056] Transfer $218: A=5850 → 5632, B=2350 → 2568
[TX057] Transfer $619: A=5632 → 5013, B=2568 → 3187
[TX058] Transfer $486: B=3187 → 2701, A=5013 → 5499
[TX059] Transfer $346: B=2701 → 2355, A=5499 → 5845
[TX060] Transfer $324: B=2355 → 2031, A=5845 → 6169
[TX061] Transfer $683: A=6169 → 5486, B=2031 → 2714
[TX062] Transfer $627: B=2714 → 2087, A=5486 → 6113
[TX063] Transfer $896: A=6113 → 5217, B=2087 → 2983
[TX064] Transfer $5: B=2983 → 2978, A=5217 → 5222
[TX065] Transfer $744: B=2978 → 2234, A=5222 → 5966
[TX066] Transfer $618: A=5966 → 5348, B=2234 → 2852
[TX067] Transfer $975: A=5348 → 4373, B=2852 → 3827
[TX068] Transfer $464: A=4373 → 3909, B=3827 → 4291
[TX069] Transfer $678: B=4291 → 3613, A=3909 → 4587
[TX070] Transfer $655: A=4587 → 3932, B=3613 → 4268
[TX071] Transfer $650: B=4268 → 3618, A=3932 → 4582
[TX072] Transfer $994: B=3618 → 2624, A=4582 → 5576
[TX073] Transfer $241: B=2624 → 2383, A=5576 → 5817
[TX074] Transfer $758: B=2383 → 1625, A=5817 → 6575
[TX075] Transfer $440: A=6575 → 6135, B=1625 → 2065
[TX076] Transfer $753: B=2065 → 1312, A=6135 → 6888
[TX077] Transfer $623: B=1312 → 689, A=6888 → 7511
[TX078] Transfer $892: A=7511 → 6619, B=689 → 1581
[TX079] Transfer $511: A=6619 → 6108, B=1581 → 2092
[TX080] Transfer $854: A=6108 → 5254, B=2092 → 2946
[TX081] Transfer $919: B=2946 → 2027, A=5254 → 6173
[TX082] Transfer $495: B=2027 → 1532, A=6173 → 6668
[TX083] Transfer $218: A=6668 → 6450, B=1532 → 1750
[TX084] Transfer $110: A=6450 → 6340, B=1750 → 1860
[TX085] Transfer $166: B=1860 → 1694, A=6340 → 6506
[TX086] Transfer $786: B=1694 → 908, A=6506 → 7292
[TX087] Transfer $738: B=908 → 170, A=7292 → 8030
[TX088] Transfer $17: B=170 → 153, A=8030 → 8047
[TX089] Transfer $94: A=8047 → 7953, B=153 → 247
[TX090] Transfer $18: B=247 → 229, A=7953 → 7971
[TX091] Transfer $99: B=229 → 130, A=7971 → 8070
[TX092] Transfer $9: B=130 → 121, A=8070 → 8079
[TX093] Transfer $11: B=121 → 110, A=8079 → 8090
[TX094] Transfer $93: A=8090 → 7997, B=110 → 203
[TX095] Transfer $97: B=203 → 106, A=7997 → 8094
[TX096] Transfer $132: A=8094 → 7962, B=106 → 238
[TX097] Transfer $2: B=238 → 236, A=7962 → 7964
[TX098] Transfer $50: B=236 → 186, A=7964 → 8014
[TX099] Transfer $42: B=186 → 144, A=8014 → 8056
[TX100] Transfer $35: B=144 → 109, A=8056 → 8091
[TX101] Transfer $406: A=8091 → 7685, B=109 → 515
[TX102] Transfer $325: A=7685 → 7360, B=515 → 840
[TX103] Transfer $859: A=7360 → 6501, B=840 → 1699
POSSIBLE BUG TYPES (choose exactly one):
- CALC_ERROR: Mathematical calculation is incorrect
- NEGATIVE_BAL: Account balance becomes negative
- LOST_UPDATE: Concurrent update causes lost transaction
- DUPLICATE_TXN: Same transaction processed multiple times
Identify the SINGLE bug if any exists.
Respond with ONLY a JSON object:
{"bug_type": "<type>", "bug_location": "<TX_ID>"
Your response:
|
NEGATIVE_BAL
|
TX023
|
Account balance goes negative
|
NEGATIVE_BAL
| 103
|
{"bug_type": "NEGATIVE_BAL", "bug_location": "TX023", "explanation": "Account balance goes negative"}
|
{"bug_type": "NEGATIVE_BAL", "n_ops": 103}
|
8
|
Analyze this banking transaction log for bugs.
Each operation shows the complete state change.
INITIAL STATE:
{
"account_A": 4000,
"account_B": 4200,
"total": 8200
}
RULES:
1. Total money must remain constant (conservation)
2. No account can go negative
3. All calculations must be mathematically correct
TRANSACTION LOG:
[TX001] Transfer $145: A=4000 → 3855, B=4200 → 4345
[TX002] Transfer $960: B=4345 → 3385, A=3855 → 4815
[TX003] Transfer $269: A=4815 → 4546, B=3385 → 3654
[TX004] Transfer $459: B=3654 → 3195, A=4546 → 5005
[TX005] Transfer $311: B=3195 → 2884, A=5005 → 5316
[TX006] Transfer $671: A=5316 → 4645, B=2884 → 3555
[TX007] Transfer $65: B=3555 → 3490, A=4645 → 4710
[TX008] Transfer $316: A=4710 → 4394, B=3490 → 3806
[TX009] Transfer $704: A=4394 → 3690, B=3806 → 4510
[TX010] Transfer $656: B=4510 → 3854, A=3690 → 4346
[TX011] Transfer $631: B=3854 → 3223, A=4346 → 4977
[TX012] Transfer $982: A=4977 → 3995, B=3223 → 4205
[TX013] Transfer $158: A=3995 → 3837, B=4205 → 4363
[TX014] Transfer $427: B=4363 → 3936, A=3837 → 4264
[TX015] Transfer $782: B=3936 → 3154, A=4264 → 5046
[TX016] Transfer $540: A=5046 → 4506, B=3154 → 3694
[TX017] Transfer $81: B=3694 → 3613, A=4506 → 4587
[TX018] Transfer $850: A=4587 → 3737, B=3613 → 4463
[TX019] Transfer $170: A=3737 → 3567, B=4463 → 4633
[TX020] Transfer $121: B=4633 → 4512, A=3567 → 3688
[TX021] Transfer $95: A=3688 → 3593, B=4512 → 4607
[TX022] Transfer $466: B=4607 → 4141, A=3593 → 4059
[TX023] Transfer $469: A=4059 → 3590, B=4141 → 4610
[TX024] Transfer $690: A=3590 → 2900, B=4610 → 5300
[TX025] Transfer $407: B=5300 → 4893, A=2900 → 3307
[TX026] Transfer $765: B=4893 → 4128, A=3307 → 4072
[TX027] Transfer $48: A=4072 → 4024, B=4128 → 4176
[TX028] Transfer $719: B=4176 → 3457, A=4024 → 4743
[TX029] Transfer $959: A=4743 → 3784, B=3457 → 4416
[TX030] Transfer $34: A=3784 → 3750, B=4416 → 4450
[TX031] Transfer $186: B=4450 → 4264, A=3750 → 3936
[TX032] Transfer $385: A=3936 → 3551, B=4264 → 4649
[TX033] Transfer $892: B=4649 → 3757, A=3551 → 4443
[TX034] Transfer $84: B=3757 → 3673, A=4443 → 4527
[TX035] Transfer $123: A=4527 → 4404, B=3673 → 3796
[TX036] Transfer $543: A=4404 → 3861, B=3796 → 4339
[TX037] Transfer $856: A=3861 → 3005, B=4339 → 5195
[TX038] Transfer $307: A=3005 → 2698, B=5195 → 5502
[TX039] Transfer $546: B=5502 → 4956, A=2698 → 3244
[TX040] Transfer $255: B=4956 → 4701, A=3244 → 3499
[TX041] Transfer $160: B=4701 → 4541, A=3499 → 3659
[TX042] Transfer $961: B=4541 → 3580, A=3659 → 4620
[TX043] Transfer $830: A=4620 → 3790, B=3580 → 4410
[TX044] Transfer $248: B=4410 → 4162, A=3790 → 4038
[TX045] Transfer $105: A=4038 → 3933, B=4162 → 4267
[TX046] Transfer $614: A=3933 → 3319, B=4267 → 4881
[TX047] Transfer $760: A=3319 → 2559, B=4881 → 5641
[TX048] Transfer $451: A=2559 → 2108, B=5641 → 6092
[TX049] Transfer $774: A=2108 → 1334, B=6092 → 6866
[TX050] Transfer $517: A=1334 → 817, B=6866 → 7383
[TX051] Transfer $837: B=7383 → 6546, A=817 → 1654
[TX052] Transfer $244: B=6546 → 6302, A=1654 → 1898
[TX053] Transfer $678: B=6302 → 5624, A=1898 → 2576
[TX054] Transfer $309: A=2576 → 2267, B=5624 → 5933
[TX055] Transfer $572: B=5933 → 5361, A=2267 → 2839
[TX056] Transfer $571: A=2839 → 2268, B=5361 → 5932
[TX057] Transfer $997: B=5932 → 4935, A=2268 → 3265
[TX058] Transfer $806: B=4935 → 4129, A=3265 → 4071
[TX059] Transfer $420: B=4129 → 3709, A=4071 → 4491
[TX060] Transfer $387: A=4491 → 4104, B=3709 → 4096
[TX061] Transfer $248: A=4104 → 3856, B=4096 → 4344
[TX062] Transfer $880: A=3856 → 2976, B=4344 → 5224
[TX063] Transfer $938: A=2976 → 2038, B=5224 → 6162
[TX064] Transfer $993: A=2038 → 1045, B=6162 → 7155
[TX065] Transfer $399: B=7155 → 6756, A=1045 → 1444
[TX066] Transfer $210: A=1444 → 1234, B=6756 → 6966
[TX067] Transfer $946: B=6966 → 6020, A=1234 → 2180
[TX068] Transfer $96: B=6020 → 5924, A=2180 → 2276
[TX069] Transfer $276: A=2276 → 2000, B=5924 → 6200
[TX070] Transfer $896: B=6200 → 5304, A=2000 → 2896
[TX071] Transfer $825: A=2896 → 2071, B=5304 → 6129
[TX072] Transfer $215: A=2071 → 1856, B=6129 → 6344
[TX073] Transfer $981: B=6344 → 5363, A=1856 → 2837
[TX074] Transfer $961: A=2837 → 1876, B=5363 → 6324
[TX075] Transfer $766: A=1876 → 1110, B=6324 → 7090
[TX076] Transfer $714: B=7090 → 6376, A=1110 → 1824
[TX077] Transfer $939: A=1824 → 885, B=6376 → 7315
[TX078] Transfer $291: A=885 → 594, B=7315 → 7606
[TX079] Transfer $548: B=7606 → 7058, A=594 → 1142
[TX080] Transfer $269: B=7058 → 6789, A=1142 → 1411
[TX081] Transfer $479: B=6789 → 6310, A=1411 → 1890
[TX082] Transfer $781: A=1890 → 1109, B=6310 → 7091
[TX083] Transfer $381: B=7091 → 6710, A=1109 → 1490
[TX084] Transfer $48: B=6710 → 6662, A=1490 → 1538
[TX085] Transfer $18: A=1538 → 1520, B=6662 → 6680
[TX086] Transfer $304: B=6680 → 6376, A=1520 → 1824
[TX087] Transfer $339: A=1824 → 1485, B=6376 → 6714
[TX088] Transfer $513: B=6715 → 6202, A=1485 → 1998
[TX089] Transfer $783: B=6202 → 5419, A=1998 → 2781
[TX090] Transfer $473: B=5419 → 4946, A=2781 → 3254
[TX091] Transfer $175: A=3254 → 3079, B=4946 → 5121
[TX092] Transfer $190: A=3079 → 2889, B=5121 → 5311
[TX093] Transfer $861: A=2889 → 2028, B=5311 → 6172
[TX094] Transfer $784: A=2028 → 1244, B=6172 → 6956
[TX095] Transfer $142: A=1244 → 1102, B=6956 → 7098
[TX096] Transfer $726: A=1102 → 376, B=7098 → 7824
[TX097] Transfer $113: A=376 → 263, B=7824 → 7937
[TX098] Transfer $63: B=7937 → 7874, A=263 → 326
[TX099] Transfer $18: B=7874 → 7856, A=326 → 344
[TX100] Transfer $5: A=344 → 339, B=7856 → 7861
[TX101] Transfer $139: A=339 → 200, B=7861 → 8000
[TX102] Transfer $516: B=8000 → 7484, A=200 → 716
[TX103] Transfer $111: B=7484 → 7373, A=716 → 827
[TX104] Transfer $248: A=827 → 579, B=7373 → 7621
[TX105] Transfer $419: A=579 → 160, B=7621 → 8040
[TX106] Transfer $816: B=8040 → 7224, A=160 → 976
[TX107] Transfer $384: B=7224 → 6840, A=976 → 1360
[TX108] Transfer $580: B=6840 → 6260, A=1360 → 1940
[TX109] Transfer $309: A=1940 → 1631, B=6260 → 6569
[TX110] Transfer $97: A=1631 → 1534, B=6569 → 6666
[TX111] Transfer $388: B=6666 → 6278, A=1534 → 1922
POSSIBLE BUG TYPES (choose exactly one):
- CALC_ERROR: Mathematical calculation is incorrect
- NEGATIVE_BAL: Account balance becomes negative
- LOST_UPDATE: Concurrent update causes lost transaction
- DUPLICATE_TXN: Same transaction processed multiple times
Identify the SINGLE bug if any exists.
Respond with ONLY a JSON object:
{"bug_type": "<type>", "bug_location": "<TX_ID>"
Your response:
|
CALC_ERROR
|
TX087
|
Mathematical calculation is incorrect
|
CALC_ERROR
| 111
|
{"bug_type": "CALC_ERROR", "bug_location": "TX087", "explanation": "Mathematical calculation is incorrect"}
|
{"bug_type": "CALC_ERROR", "n_ops": 111}
|
47
|
Analyze this banking transaction log for bugs.
Each operation shows the complete state change.
INITIAL STATE:
{
"account_A": 4000,
"account_B": 4200,
"total": 8200
}
RULES:
1. Total money must remain constant (conservation)
2. No account can go negative
3. All calculations must be mathematically correct
TRANSACTION LOG:
[TX001] Transfer $251: A=4000 → 3749, B=4200 → 4451
[TX002] Transfer $102: B=4451 → 4349, A=3749 → 3851
[TX003] Transfer $810: A=3851 → 3041, B=4349 → 5159
[TX004] Transfer $491: A=3041 → 2550, B=5159 → 5650
[TX005] Transfer $87: A=2550 → 2463, B=5650 → 5737
[TX006] Transfer $104: B=5737 → 5633, A=2463 → 2567
[TX007] Transfer $309: A=2567 → 2258, B=5633 → 5942
[TX008] Thread T1: READ A=2258
[TX009] Thread T2: READ A=2258
[TX010] Thread T1: COMMIT A=2258 → 2060
[TX011] Thread T2: COMMIT A=2258 → 2098
[TX012] Transfer $798: A=2098 → 1300, B=5942 → 6740
[TX013] Transfer $2: A=1300 → 1298, B=6740 → 6742
[TX014] Transfer $617: B=6742 → 6125, A=1298 → 1915
[TX015] Transfer $648: B=6125 → 5477, A=1915 → 2563
[TX016] Transfer $521: A=2563 → 2042, B=5477 → 5998
[TX017] Transfer $976: B=5998 → 5022, A=2042 → 3018
[TX018] Transfer $890: B=5022 → 4132, A=3018 → 3908
[TX019] Transfer $283: A=3908 → 3625, B=4132 → 4415
[TX020] Transfer $116: B=4415 → 4299, A=3625 → 3741
[TX021] Transfer $8: A=3741 → 3733, B=4299 → 4307
[TX022] Transfer $509: B=4307 → 3798, A=3733 → 4242
[TX023] Transfer $69: A=4242 → 4173, B=3798 → 3867
[TX024] Transfer $98: B=3867 → 3769, A=4173 → 4271
[TX025] Transfer $655: B=3769 → 3114, A=4271 → 4926
[TX026] Transfer $799: A=4926 → 4127, B=3114 → 3913
[TX027] Transfer $220: A=4127 → 3907, B=3913 → 4133
[TX028] Transfer $329: B=4133 → 3804, A=3907 → 4236
[TX029] Transfer $703: B=3804 → 3101, A=4236 → 4939
[TX030] Transfer $586: B=3101 → 2515, A=4939 → 5525
[TX031] Transfer $162: A=5525 → 5363, B=2515 → 2677
[TX032] Transfer $806: A=5363 → 4557, B=2677 → 3483
[TX033] Transfer $626: A=4557 → 3931, B=3483 → 4109
[TX034] Transfer $981: A=3931 → 2950, B=4109 → 5090
[TX035] Transfer $800: B=5090 → 4290, A=2950 → 3750
[TX036] Transfer $957: B=4290 → 3333, A=3750 → 4707
[TX037] Transfer $958: B=3333 → 2375, A=4707 → 5665
[TX038] Transfer $150: B=2375 → 2225, A=5665 → 5815
[TX039] Transfer $746: B=2225 → 1479, A=5815 → 6561
[TX040] Transfer $462: B=1479 → 1017, A=6561 → 7023
[TX041] Transfer $578: B=1017 → 439, A=7023 → 7601
[TX042] Transfer $4: B=439 → 435, A=7601 → 7605
[TX043] Transfer $211: B=435 → 224, A=7605 → 7816
[TX044] Transfer $60: B=224 → 164, A=7816 → 7876
[TX045] Transfer $54: B=164 → 110, A=7876 → 7930
[TX046] Transfer $679: A=7930 → 7251, B=110 → 789
[TX047] Transfer $384: B=789 → 405, A=7251 → 7635
[TX048] Transfer $439: A=7635 → 7196, B=405 → 844
[TX049] Transfer $573: B=844 → 271, A=7196 → 7769
[TX050] Transfer $634: A=7769 → 7135, B=271 → 905
[TX051] Transfer $111: B=905 → 794, A=7135 → 7246
[TX052] Transfer $166: A=7246 → 7080, B=794 → 960
[TX053] Transfer $740: B=960 → 220, A=7080 → 7820
[TX054] Transfer $101: B=220 → 119, A=7820 → 7921
[TX055] Transfer $9: B=119 → 110, A=7921 → 7930
[TX056] Transfer $2: B=110 → 108, A=7930 → 7932
[TX057] Transfer $656: A=7932 → 7276, B=108 → 764
[TX058] Transfer $552: B=764 → 212, A=7276 → 7828
[TX059] Transfer $38: B=212 → 174, A=7828 → 7866
[TX060] Transfer $139: A=7866 → 7727, B=174 → 313
[TX061] Transfer $795: A=7727 → 6932, B=313 → 1108
[TX062] Transfer $896: B=1108 → 212, A=6932 → 7828
[TX063] Transfer $589: A=7828 → 7239, B=212 → 801
[TX064] Transfer $450: A=7239 → 6789, B=801 → 1251
[TX065] Transfer $588: A=6789 → 6201, B=1251 → 1839
[TX066] Transfer $708: B=1839 → 1131, A=6201 → 6909
[TX067] Transfer $792: A=6909 → 6117, B=1131 → 1923
[TX068] Transfer $982: A=6117 → 5135, B=1923 → 2905
[TX069] Transfer $767: B=2905 → 2138, A=5135 → 5902
[TX070] Transfer $330: A=5902 → 5572, B=2138 → 2468
[TX071] Transfer $473: B=2468 → 1995, A=5572 → 6045
[TX072] Transfer $205: B=1995 → 1790, A=6045 → 6250
[TX073] Transfer $620: B=1790 → 1170, A=6250 → 6870
[TX074] Transfer $124: A=6870 → 6746, B=1170 → 1294
[TX075] Transfer $407: B=1294 → 887, A=6746 → 7153
[TX076] Transfer $543: B=887 → 344, A=7153 → 7696
[TX077] Transfer $18: A=7696 → 7678, B=344 → 362
[TX078] Transfer $260: B=362 → 102, A=7678 → 7938
[TX079] Transfer $2: B=102 → 100, A=7938 → 7940
[TX080] Balance check: B=100
[TX081] Transfer $999: A=7940 → 6941, B=100 → 1099
[TX082] Transfer $819: A=6941 → 6122, B=1099 → 1918
[TX083] Transfer $626: A=6122 → 5496, B=1918 → 2544
[TX084] Transfer $787: A=5496 → 4709, B=2544 → 3331
[TX085] Transfer $478: B=3331 → 2853, A=4709 → 5187
[TX086] Transfer $668: B=2853 → 2185, A=5187 → 5855
[TX087] Transfer $188: B=2185 → 1997, A=5855 → 6043
[TX088] Transfer $542: B=1997 → 1455, A=6043 → 6585
[TX089] Transfer $413: B=1455 → 1042, A=6585 → 6998
[TX090] Transfer $640: B=1042 → 402, A=6998 → 7638
[TX091] Transfer $6: B=402 → 396, A=7638 → 7644
[TX092] Transfer $439: A=7644 → 7205, B=396 → 835
[TX093] Transfer $878: A=7205 → 6327, B=835 → 1713
[TX094] Transfer $547: A=6327 → 5780, B=1713 → 2260
POSSIBLE BUG TYPES (choose exactly one):
- CALC_ERROR: Mathematical calculation is incorrect
- NEGATIVE_BAL: Account balance becomes negative
- LOST_UPDATE: Concurrent update causes lost transaction
- DUPLICATE_TXN: Same transaction processed multiple times
Identify the SINGLE bug if any exists.
Respond with ONLY a JSON object:
{"bug_type": "<type>", "bug_location": "<TX_ID>"
Your response:
|
LOST_UPDATE
|
TX011
|
Thread T2 overwrites T1's change
|
LOST_UPDATE
| 94
|
{"bug_type": "LOST_UPDATE", "bug_location": "TX011", "explanation": "Thread T2 overwrites T1's change"}
|
{"bug_type": "LOST_UPDATE", "n_ops": 94}
|
59
|
Analyze this banking transaction log for bugs.
Each operation shows the complete state change.
INITIAL STATE:
{
"account_A": 4000,
"account_B": 4200,
"total": 8200
}
RULES:
1. Total money must remain constant (conservation)
2. No account can go negative
3. All calculations must be mathematically correct
TRANSACTION LOG:
[TX001] Transfer $806: A=4000 → 3194, B=4200 → 5006
[TX002] Transfer $358: A=3194 → 2836, B=5006 → 5364
[TX003] Transfer $462: B=5364 → 4902, A=2836 → 3298
[TX004] Transfer $861: A=3298 → 2437, B=4902 → 5763
[TX005] Transfer $278: B=5763 → 5485, A=2437 → 2715
[TX006] Transfer $227: A=2715 → 2488, B=5485 → 5712
[TX007] Transfer $19: B=5712 → 5693, A=2488 → 2507
[TX008] Transfer $395: A=2507 → 2112, B=5693 → 6088
[TX009] Transfer $114: A=2112 → 1998, B=6088 → 6202
[TX010] Transfer $536: B=6202 → 5666, A=1998 → 2534
[TX011] Transfer $280: B=5666 → 5386, A=2534 → 2814
[TX012] Transfer $22: B=5386 → 5364, A=2814 → 2836
[TX013] Transfer $249: A=2836 → 2587, B=5364 → 5613
[TX014] Transfer $831: B=5613 → 4782, A=2587 → 3418
[TX015] Transfer $644: A=3418 → 2774, B=4782 → 5426
[TX016] Transfer $154: B=5426 → 5272, A=2774 → 2928
[TX017] Transfer $788: A=2928 → 2140, B=5272 → 6060
[TX018] Transfer $3: B=6060 → 6057, A=2140 → 2143
[TX019] Transfer $193: B=6057 → 5864, A=2143 → 2336
[TX020] Transfer $740: A=2336 → 1596, B=5864 → 6604
[TX021] Transfer $714: B=6604 → 5890, A=1596 → 2310
[TX022] Transfer $645: B=5890 → 5245, A=2310 → 2955
[TX023] Transfer $100: B=5245 → 5145, A=2955 → 3055
[TX024] Transfer $641: B=5145 → 4504, A=3055 → 3696
[TX025] Transfer $334: A=3696 → 3362, B=4504 → 4838
[TX026] Transfer $367: A=3362 → 2995, B=4838 → 5205
[TX027] Transfer $547: B=5205 → 4658, A=2995 → 3542
[TX028] Transfer $235: B=4658 → 4423, A=3542 → 3777
[TX029] Transfer $708: B=4423 → 3715, A=3777 → 4485
[TX030] Transfer $580: A=4485 → 3905, B=3715 → 4295
[TX031] Transfer $422: A=3905 → 3483, B=4295 → 4717
[TX032] Transfer $480: A=3483 → 3003, B=4717 → 5197
[TX033] Transfer $107: B=5197 → 5090, A=3003 → 3110
[TX034] Transfer $228: B=5090 → 4862, A=3110 → 3338
[TX035] Transfer $381: A=3338 → 2957, B=4862 → 5243
[TX036] Transfer $264: A=2957 → 2693, B=5243 → 5507
[TX037] Transfer $125: A=2693 → 2568, B=5507 → 5632
[TX038] Transfer $916: B=5632 → 4716, A=2568 → 3484
[TX039] Transfer $350: A=3484 → 3134, B=4716 → 5066
[TX040] Transfer $97: A=3134 → 3037, B=5066 → 5163
[TX041] Transfer $47: B=5163 → 5116, A=3037 → 3084
[TX042] Transfer $556: B=5116 → 4560, A=3084 → 3640
[TX043] Transfer $950: A=3640 → 2690, B=4560 → 5510
[TX044] Transfer $816: B=5510 → 4694, A=2690 → 3506
[TX045] Transfer $104: B=4694 → 4590, A=3506 → 3610
[TX046] Transfer $949: A=3610 → 2661, B=4590 → 5539
[TX047] Transfer $439: B=5539 → 5100, A=2661 → 3100
[TX048] Transfer $773: B=5100 → 4327, A=3100 → 3873
[TX049] Transfer $29: B=4327 → 4298, A=3873 → 3902
[TX050] Transfer $685: A=3902 → 3217, B=4298 → 4983
[TX051] Transfer $178: B=4983 → 4805, A=3217 → 3395
[TX052] Transfer $757: A=3395 → 2638, B=4805 → 5562
[TX053] Transfer $202: A=2638 → 2436, B=5562 → 5764
[TX054] Transfer $137: A=2436 → 2299, B=5764 → 5901
[TX055] Transfer $64: B=5901 → 5837, A=2299 → 2363
[TX056] Transfer $5857: B=5837 → -20, A=2363 → 8220
[TX057] Transfer $122: A=8220 → 8098, B=-20 → 102
[TX058] Transfer $644: A=8098 → 7454, B=102 → 746
[TX059] Transfer $159: B=746 → 587, A=7454 → 7613
[TX060] Transfer $487: A=7613 → 7126, B=587 → 1074
[TX061] Transfer $177: B=1074 → 897, A=7126 → 7303
[TX062] Transfer $547: B=897 → 350, A=7303 → 7850
[TX063] Transfer $113: A=7850 → 7737, B=350 → 463
[TX064] Transfer $218: A=7737 → 7519, B=463 → 681
[TX065] Transfer $427: A=7519 → 7092, B=681 → 1108
[TX066] Transfer $236: A=7092 → 6856, B=1108 → 1344
[TX067] Transfer $732: A=6856 → 6124, B=1344 → 2076
[TX068] Transfer $163: B=2076 → 1913, A=6124 → 6287
[TX069] Transfer $437: A=6287 → 5850, B=1913 → 2350
[TX070] Transfer $287: A=5850 → 5563, B=2350 → 2637
[TX071] Transfer $622: B=2637 → 2015, A=5563 → 6185
[TX072] Transfer $202: A=6185 → 5983, B=2015 → 2217
[TX073] Transfer $386: B=2217 → 1831, A=5983 → 6369
[TX074] Transfer $897: B=1831 → 934, A=6369 → 7266
[TX075] Transfer $924: A=7266 → 6342, B=934 → 1858
[TX076] Transfer $756: A=6342 → 5586, B=1858 → 2614
[TX077] Transfer $406: A=5586 → 5180, B=2614 → 3020
[TX078] Transfer $532: A=5180 → 4648, B=3020 → 3552
[TX079] Transfer $820: A=4648 → 3828, B=3552 → 4372
[TX080] Transfer $931: A=3828 → 2897, B=4372 → 5303
[TX081] Transfer $249: A=2897 → 2648, B=5303 → 5552
[TX082] Transfer $539: A=2648 → 2109, B=5552 → 6091
[TX083] Transfer $269: A=2109 → 1840, B=6091 → 6360
[TX084] Transfer $849: B=6360 → 5511, A=1840 → 2689
[TX085] Transfer $439: A=2689 → 2250, B=5511 → 5950
[TX086] Transfer $145: B=5950 → 5805, A=2250 → 2395
[TX087] Transfer $532: A=2395 → 1863, B=5805 → 6337
[TX088] Transfer $75: A=1863 → 1788, B=6337 → 6412
[TX089] Transfer $757: B=6412 → 5655, A=1788 → 2545
[TX090] Transfer $170: B=5655 → 5485, A=2545 → 2715
[TX091] Transfer $32: B=5485 → 5453, A=2715 → 2747
[TX092] Transfer $800: A=2747 → 1947, B=5453 → 6253
[TX093] Transfer $885: A=1947 → 1062, B=6253 → 7138
[TX094] Transfer $332: A=1062 → 730, B=7138 → 7470
[TX095] Transfer $86: A=730 → 644, B=7470 → 7556
[TX096] Transfer $102: A=644 → 542, B=7556 → 7658
[TX097] Transfer $60: B=7658 → 7598, A=542 → 602
[TX098] Transfer $182: A=602 → 420, B=7598 → 7780
[TX099] Transfer $690: B=7780 → 7090, A=420 → 1110
[TX100] Transfer $772: A=1110 → 338, B=7090 → 7862
[TX101] Transfer $165: B=7862 → 7697, A=338 → 503
[TX102] Transfer $309: A=503 → 194, B=7697 → 8006
[TX103] Transfer $504: B=8006 → 7502, A=194 → 698
[TX104] Transfer $181: A=698 → 517, B=7502 → 7683
[TX105] Transfer $323: B=7683 → 7360, A=517 → 840
[TX106] Transfer $43: B=7360 → 7317, A=840 → 883
[TX107] Transfer $28: B=7317 → 7289, A=883 → 911
[TX108] Transfer $4: A=911 → 907, B=7289 → 7293
[TX109] Transfer $388: B=7293 → 6905, A=907 → 1295
[TX110] Transfer $92: B=6905 → 6813, A=1295 → 1387
POSSIBLE BUG TYPES (choose exactly one):
- CALC_ERROR: Mathematical calculation is incorrect
- NEGATIVE_BAL: Account balance becomes negative
- LOST_UPDATE: Concurrent update causes lost transaction
- DUPLICATE_TXN: Same transaction processed multiple times
Identify the SINGLE bug if any exists.
Respond with ONLY a JSON object:
{"bug_type": "<type>", "bug_location": "<TX_ID>"
Your response:
|
NEGATIVE_BAL
|
TX056
|
Account balance goes negative
|
NEGATIVE_BAL
| 110
|
{"bug_type": "NEGATIVE_BAL", "bug_location": "TX056", "explanation": "Account balance goes negative"}
|
{"bug_type": "NEGATIVE_BAL", "n_ops": 110}
|
63
|
Analyze this banking transaction log for bugs.
Each operation shows the complete state change.
INITIAL STATE:
{
"account_A": 4000,
"account_B": 4200,
"total": 8200
}
RULES:
1. Total money must remain constant (conservation)
2. No account can go negative
3. All calculations must be mathematically correct
TRANSACTION LOG:
[TX001] Transfer $519: A=4000 → 3481, B=4200 → 4719
[TX002] Transfer $859: B=4719 → 3860, A=3481 → 4340
[TX003] Transfer $530: A=4340 → 3810, B=3860 → 4390
[TX004] Transfer $769: A=3810 → 3041, B=4390 → 5159
[TX005] Transfer $699: A=3041 → 2342, B=5159 → 5858
[TX006] Transfer $660: A=2342 → 1682, B=5858 → 6518
[TX007] Transfer $379: A=1682 → 1303, B=6518 → 6897
[TX008] Transfer $906: A=1303 → 397, B=6897 → 7803
[TX009] Transfer $201: A=397 → 196, B=7803 → 8004
[TX010] Transfer $704: B=8004 → 7300, A=196 → 900
[TX011] Transfer $33: B=7300 → 7267, A=900 → 933
[TX012] Transfer $288: A=933 → 645, B=7267 → 7555
[TX013] Transfer $385: A=645 → 260, B=7555 → 7940
[TX014] Transfer $188: B=7940 → 7752, A=260 → 448
[TX015] Transfer $609: B=7752 → 7143, A=448 → 1057
[TX016] Transfer $145: B=7143 → 6998, A=1057 → 1202
[TX017] Transfer $192: B=6998 → 6806, A=1202 → 1394
[TX018] Transfer $701: A=1394 → 693, B=6806 → 7507
[TX019] Transfer $852: B=7507 → 6655, A=693 → 1545
[TX020] Transfer $561: A=1545 → 984, B=6655 → 7216
[TX021] Transfer $416: A=984 → 568, B=7216 → 7632
[TX022] Transfer $42: A=568 → 526, B=7632 → 7674
[TX023] Transfer $547: B=7674 → 7127, A=526 → 1073
[TX024] Transfer $184: B=7127 → 6943, A=1073 → 1257
[TX025] Transfer $173: B=6943 → 6770, A=1257 → 1430
[TX026] Transfer $970: A=1430 → 460, B=6770 → 7740
[TX027] Transfer $177: A=460 → 283, B=7740 → 7917
[TX028] Transfer $230: B=7917 → 7687, A=283 → 513
[TX029] Transfer $191: A=513 → 322, B=7687 → 7878
[TX030] Transfer $976: B=7878 → 6902, A=322 → 1298
[TX031] Transfer $981: B=6902 → 5921, A=1298 → 2279
[TX032] Transfer $18: B=5921 → 5903, A=2279 → 2297
[TX033] Transfer $793: B=5903 → 5110, A=2297 → 3090
[TX034] Transfer $231: B=5110 → 4879, A=3090 → 3321
[TX035] Transfer $315: A=3321 → 3006, B=4879 → 5194
[TX036] Transfer $950: A=3006 → 2056, B=5194 → 6144
[TX037] Transfer $615: A=2056 → 1441, B=6144 → 6759
[TX038] Transfer $50: B=6759 → 6709, A=1441 → 1491
[TX039] Transfer $597: A=1491 → 894, B=6709 → 7306
[TX040] Transfer $40: A=894 → 854, B=7306 → 7346
[TX041] Transfer $217: A=854 → 637, B=7346 → 7563
[TX042] Transfer $92: B=7563 → 7471, A=637 → 729
[TX043] Transfer $466: B=7471 → 7005, A=729 → 1195
[TX044] Transfer $849: A=1195 → 346, B=7005 → 7854
[TX045] Transfer $111: B=7854 → 7743, A=346 → 457
[TX046] Transfer $189: A=457 → 268, B=7743 → 7932
[TX047] Transfer $123: A=268 → 145, B=7932 → 8055
[TX048] Transfer $29: A=145 → 116, B=8055 → 8084
[TX049] Transfer $48: B=8084 → 8036, A=116 → 164
[TX050] Transfer $62: A=164 → 102, B=8036 → 8098
[TX051] Transfer $2: A=102 → 100, B=8098 → 8100
[TX052] Balance check: A=100
[TX053] Transfer $469: B=8100 → 7631, A=100 → 569
[TX054] Transfer $714: B=7631 → 6917, A=569 → 1283
[TX055] Transfer $621: B=6917 → 6296, A=1283 → 1904
[TX056] Transfer $8: A=1904 → 1896, B=6296 → 6304
[TX057] Transfer $134: B=6304 → 6170, A=1896 → 2030
[TX058] Transfer $413: A=2030 → 1617, B=6170 → 6583
[TX059] Transfer $959: A=1617 → 658, B=6583 → 7542
[TX060] Transfer $428: B=7542 → 7114, A=658 → 1086
[TX061] Transfer $886: A=1086 → 200, B=7114 → 8000
[TX062] Transfer $553: B=8000 → 7447, A=200 → 753
[TX063] Transfer $307: B=7447 → 7140, A=753 → 1060
[TX064] Transfer $506: A=1060 → 554, B=7140 → 7646
[TX065] Transfer $760: B=7646 → 6886, A=554 → 1314
[TX066] Transfer $752: B=6886 → 6134, A=1314 → 2066
[TX067] Transfer $817: B=6134 → 5317, A=2066 → 2883
[TX068] Transfer $184: B=5317 → 5133, A=2883 → 3067
[TX069] Transfer $982: A=3067 → 2085, B=5133 → 6115
[TX070] Transfer $833: A=2085 → 1252, B=6115 → 6948
[TX071] Transfer $6949: B=6948 → -1, A=1252 → 8201
[TX072] Transfer $905: A=8201 → 7296, B=-1 → 904
[TX073] Transfer $161: A=7296 → 7135, B=904 → 1065
[TX074] Transfer $656: B=1065 → 409, A=7135 → 7791
[TX075] Transfer $76: A=7791 → 7715, B=409 → 485
[TX076] Transfer $660: A=7715 → 7055, B=485 → 1145
[TX077] Transfer $891: A=7055 → 6164, B=1145 → 2036
[TX078] Transfer $215: B=2036 → 1821, A=6164 → 6379
[TX079] Transfer $350: A=6379 → 6029, B=1821 → 2171
[TX080] Transfer $536: B=2171 → 1635, A=6029 → 6565
[TX081] Transfer $570: A=6565 → 5995, B=1635 → 2205
[TX082] Transfer $292: A=5995 → 5703, B=2205 → 2497
[TX083] Transfer $873: B=2497 → 1624, A=5703 → 6576
[TX084] Transfer $602: B=1624 → 1022, A=6576 → 7178
[TX085] Transfer $513: B=1022 → 509, A=7178 → 7691
[TX086] Transfer $461: A=7691 → 7230, B=509 → 970
[TX087] Transfer $660: B=970 → 310, A=7230 → 7890
[TX088] Transfer $193: B=310 → 117, A=7890 → 8083
[TX089] Transfer $377: A=8083 → 7706, B=117 → 494
[TX090] Transfer $296: A=7706 → 7410, B=494 → 790
[TX091] Transfer $540: A=7410 → 6870, B=790 → 1330
[TX092] Transfer $726: A=6870 → 6144, B=1330 → 2056
[TX093] Transfer $196: A=6144 → 5948, B=2056 → 2252
[TX094] Transfer $206: A=5948 → 5742, B=2252 → 2458
[TX095] Transfer $643: A=5742 → 5099, B=2458 → 3101
[TX096] Transfer $62: B=3101 → 3039, A=5099 → 5161
[TX097] Transfer $908: B=3039 → 2131, A=5161 → 6069
[TX098] Transfer $427: A=6069 → 5642, B=2131 → 2558
[TX099] Transfer $165: B=2558 → 2393, A=5642 → 5807
[TX100] Transfer $355: A=5807 → 5452, B=2393 → 2748
[TX101] Transfer $787: A=5452 → 4665, B=2748 → 3535
[TX102] Transfer $533: B=3535 → 3002, A=4665 → 5198
[TX103] Transfer $183: A=5198 → 5015, B=3002 → 3185
[TX104] Transfer $493: A=5015 → 4522, B=3185 → 3678
[TX105] Transfer $268: B=3678 → 3410, A=4522 → 4790
POSSIBLE BUG TYPES (choose exactly one):
- CALC_ERROR: Mathematical calculation is incorrect
- NEGATIVE_BAL: Account balance becomes negative
- LOST_UPDATE: Concurrent update causes lost transaction
- DUPLICATE_TXN: Same transaction processed multiple times
Identify the SINGLE bug if any exists.
Respond with ONLY a JSON object:
{"bug_type": "<type>", "bug_location": "<TX_ID>"
Your response:
|
NEGATIVE_BAL
|
TX071
|
Account balance goes negative
|
NEGATIVE_BAL
| 105
|
{"bug_type": "NEGATIVE_BAL", "bug_location": "TX071", "explanation": "Account balance goes negative"}
|
{"bug_type": "NEGATIVE_BAL", "n_ops": 105}
|
74
|
Analyze this banking transaction log for bugs.
Each operation shows the complete state change.
INITIAL STATE:
{
"account_A": 4000,
"account_B": 4200,
"total": 8200
}
RULES:
1. Total money must remain constant (conservation)
2. No account can go negative
3. All calculations must be mathematically correct
TRANSACTION LOG:
[TX001] Transfer $279: B=4200 → 3921, A=4000 → 4279
[TX002] Transfer $825: B=3921 → 3096, A=4279 → 5104
[TX003] Transfer $882: A=5104 → 4222, B=3096 → 3978
[TX004] Transfer $786: B=3978 → 3192, A=4222 → 5008
[TX005] Transfer $628: B=3192 → 2564, A=5008 → 5636
[TX006] Transfer $808: B=2564 → 1756, A=5636 → 6444
[TX007] Transfer $265: B=1756 → 1491, A=6444 → 6709
[TX008] Transfer $439: A=6709 → 6270, B=1491 → 1930
[TX009] Transfer $972: A=6270 → 5298, B=1930 → 2902
[TX010] Transfer $240: B=2902 → 2662, A=5298 → 5538
[TX011] Transfer $465: B=2662 → 2197, A=5538 → 6003
[TX012] Transfer $328: B=2197 → 1869, A=6003 → 6331
[TX013] Transfer $935: A=6331 → 5396, B=1869 → 2804
[TX014] Transfer $19: B=2804 → 2785, A=5396 → 5415
[TX015] Transfer $909: B=2785 → 1876, A=5415 → 6324
[TX016] Transfer $557: B=1876 → 1319, A=6324 → 6881
[TX017] Transfer $830: A=6881 → 6051, B=1319 → 2149
[TX018] Transfer $671: A=6051 → 5380, B=2149 → 2820
[TX019] Transfer $156: B=2820 → 2664, A=5380 → 5536
[TX020] Transfer $75: B=2664 → 2589, A=5536 → 5611
[TX021] Transfer $225: B=2589 → 2364, A=5611 → 5836
[TX022] Transfer $607: A=5836 → 5229, B=2364 → 2971
[TX023] Transfer $777: B=2971 → 2194, A=5229 → 6006
[TX024] Transfer $448: B=2194 → 1746, A=6006 → 6454
[TX025] Transfer $686: A=6454 → 5768, B=1746 → 2432
[TX026] Transfer $178: A=5768 → 5590, B=2432 → 2610
[TX027] Transfer $45: B=2610 → 2565, A=5590 → 5635
[TX028] Transfer $79: B=2565 → 2486, A=5635 → 5714
[TX029] Transfer $640: B=2486 → 1846, A=5714 → 6354
[TX030] Transfer $101: A=6354 → 6253, B=1846 → 1947
[TX031] Transfer $743: A=6253 → 5510, B=1947 → 2690
[TX032] Payment PAY1021: Transfer $672: A=5510 → 4838, B=2690 → 3362
[TX033] Transfer $281: A=4838 → 4557, B=3362 → 3643
[TX034] Transfer $67: A=4557 → 4490, B=3643 → 3710
[TX035] Transfer $872: A=4490 → 3618, B=3710 → 4582
[TX036] Transfer $974: A=3618 → 2644, B=4582 → 5556
[TX037] Transfer $383: A=2644 → 2261, B=5556 → 5939
[TX038] Transfer $730: B=5939 → 5209, A=2261 → 2991
[TX039] Transfer $892: B=5209 → 4317, A=2991 → 3883
[TX040] Transfer $550: B=4317 → 3767, A=3883 → 4433
[TX041] Transfer $307: B=3767 → 3460, A=4433 → 4740
[TX042] Transfer $783: A=4740 → 3957, B=3460 → 4243
[TX043] Transfer $270: A=3957 → 3687, B=4243 → 4513
[TX044] Transfer $318: A=3687 → 3369, B=4513 → 4831
[TX045] Transfer $859: B=4831 → 3972, A=3369 → 4228
[TX046] Transfer $815: A=4228 → 3413, B=3972 → 4787
[TX047] Transfer $585: B=4787 → 4202, A=3413 → 3998
[TX048] Transfer $655: B=4202 → 3547, A=3998 → 4653
[TX049] Transfer $853: B=3547 → 2694, A=4653 → 5506
[TX050] Transfer $796: B=2694 → 1898, A=5506 → 6302
[TX051] Transfer $290: B=1898 → 1608, A=6302 → 6592
[TX052] Transfer $795: B=1608 → 813, A=6592 → 7387
[TX053] Transfer $743: A=7387 → 6644, B=813 → 1556
[TX054] Transfer $305: A=6644 → 6339, B=1556 → 1861
[TX055] Transfer $627: A=6339 → 5712, B=1861 → 2488
[TX056] Transfer $830: A=5712 → 4882, B=2488 → 3318
[TX057] Transfer $78: A=4882 → 4804, B=3318 → 3396
[TX058] Transfer $19: A=4804 → 4785, B=3396 → 3415
[TX059] Transfer $48: B=3415 → 3367, A=4785 → 4833
[TX060] Transfer $628: B=3367 → 2739, A=4833 → 5461
[TX061] Transfer $816: B=2739 → 1923, A=5461 → 6277
[TX062] Transfer $752: A=6277 → 5525, B=1923 → 2675
[TX063] Transfer $94: B=2675 → 2581, A=5525 → 5619
[TX064] Transfer $159: B=2581 → 2422, A=5619 → 5778
[TX065] Transfer $591: B=2422 → 1831, A=5778 → 6369
[TX066] Transfer $528: A=6369 → 5841, B=1831 → 2359
[TX067] Transfer $755: A=5841 → 5086, B=2359 → 3114
[TX068] Transfer $226: A=5086 → 4860, B=3114 → 3340
[TX069] Transfer $421: B=3340 → 2919, A=4860 → 5281
[TX070] Transfer $725: A=5281 → 4556, B=2919 → 3644
[TX071] Transfer $7: A=4556 → 4549, B=3644 → 3651
[TX072] Transfer $767: B=3651 → 2884, A=4549 → 5316
[TX073] Transfer $200: A=5316 → 5116, B=2884 → 3084
[TX074] Transfer $895: B=3084 → 2189, A=5116 → 6011
[TX075] Transfer $331: A=6011 → 5680, B=2189 → 2520
[TX076] Transfer $831: A=5680 → 4849, B=2520 → 3351
[TX077] Transfer $252: A=4849 → 4597, B=3351 → 3603
[TX078] Transfer $959: A=4597 → 3638, B=3603 → 4562
[TX079] Transfer $949: B=4562 → 3613, A=3638 → 4587
[TX080] Transfer $677: B=3613 → 2936, A=4587 → 5264
[TX081] Transfer $463: A=5264 → 4801, B=2936 → 3399
[TX082] Transfer $169: B=3399 → 3230, A=4801 → 4970
[TX083] Transfer $957: B=3230 → 2273, A=4970 → 5927
[TX084] Transfer $183: A=5927 → 5744, B=2273 → 2456
[TX085] Transfer $691: A=5744 → 5053, B=2456 → 3147
[TX086] Transfer $836: A=5053 → 4217, B=3147 → 3983
[TX087] Transfer $923: B=3983 → 3060, A=4217 → 5140
[TX088] Transfer $652: A=5140 → 4488, B=3060 → 3712
[TX089] Transfer $183: A=4488 → 4305, B=3712 → 3895
[TX090] Transfer $109: B=3895 → 3786, A=4305 → 4414
[TX091] Transfer $567: A=4414 → 3847, B=3786 → 4353
[TX092] Transfer $2: B=4353 → 4351, A=3847 → 3849
[TX093] Transfer $160: A=3849 → 3689, B=4351 → 4511
[TX094] Transfer $923: A=3689 → 2766, B=4511 → 5434
[TX095] Transfer $103: A=2766 → 2663, B=5434 → 5537
[TX096] Transfer $921: A=2663 → 1742, B=5537 → 6458
[TX097] Transfer $756: A=1742 → 986, B=6458 → 7214
[TX098] Payment PAY1021: Transfer $672: A=986 → 314, B=7214 → 7886
[TX099] Transfer $85: A=314 → 229, B=7886 → 7971
[TX100] Transfer $125: A=229 → 104, B=7971 → 8096
[TX101] Transfer $99: B=8096 → 7997, A=104 → 203
[TX102] Transfer $98: A=203 → 105, B=7997 → 8095
[TX103] Transfer $8: B=8095 → 8087, A=105 → 113
[TX104] Transfer $5: A=113 → 108, B=8087 → 8092
[TX105] Transfer $5: A=108 → 103, B=8092 → 8097
[TX106] Transfer $121: B=8097 → 7976, A=103 → 224
[TX107] Transfer $362: B=7976 → 7614, A=224 → 586
[TX108] Transfer $556: B=7614 → 7058, A=586 → 1142
POSSIBLE BUG TYPES (choose exactly one):
- CALC_ERROR: Mathematical calculation is incorrect
- NEGATIVE_BAL: Account balance becomes negative
- LOST_UPDATE: Concurrent update causes lost transaction
- DUPLICATE_TXN: Same transaction processed multiple times
Identify the SINGLE bug if any exists.
Respond with ONLY a JSON object:
{"bug_type": "<type>", "bug_location": "<TX_ID>"
Your response:
|
DUPLICATE_TXN
|
TX098
|
Payment PAY1021 processed twice
|
DUPLICATE_TXN
| 108
|
{"bug_type": "DUPLICATE_TXN", "bug_location": "TX098", "explanation": "Payment PAY1021 processed twice"}
|
{"bug_type": "DUPLICATE_TXN", "n_ops": 108}
|
44
|
Analyze this banking transaction log for bugs.
Each operation shows the complete state change.
INITIAL STATE:
{
"account_A": 4000,
"account_B": 4200,
"total": 8200
}
RULES:
1. Total money must remain constant (conservation)
2. No account can go negative
3. All calculations must be mathematically correct
TRANSACTION LOG:
[TX001] Transfer $533: A=4000 → 3467, B=4200 → 4733
[TX002] Transfer $475: B=4733 → 4258, A=3467 → 3942
[TX003] Transfer $951: A=3942 → 2991, B=4258 → 5209
[TX004] Transfer $538: A=2991 → 2453, B=5209 → 5747
[TX005] Transfer $327: B=5747 → 5420, A=2453 → 2780
[TX006] Transfer $155: B=5420 → 5265, A=2780 → 2935
[TX007] Transfer $7: B=5265 → 5258, A=2935 → 2942
[TX008] Transfer $206: B=5258 → 5052, A=2942 → 3148
[TX009] Transfer $340: A=3148 → 2808, B=5052 → 5392
[TX010] Transfer $641: A=2808 → 2167, B=5392 → 6033
[TX011] Transfer $70: B=6033 → 5963, A=2167 → 2237
[TX012] Transfer $355: B=5963 → 5608, A=2237 → 2592
[TX013] Transfer $283: A=2592 → 2309, B=5608 → 5891
[TX014] Transfer $600: B=5891 → 5291, A=2309 → 2909
[TX015] Transfer $641: B=5291 → 4650, A=2909 → 3550
[TX016] Transfer $576: B=4650 → 4074, A=3550 → 4126
[TX017] Transfer $608: A=4126 → 3518, B=4074 → 4682
[TX018] Transfer $750: A=3518 → 2768, B=4682 → 5432
[TX019] Transfer $184: A=2768 → 2584, B=5432 → 5616
[TX020] Transfer $131: B=5616 → 5485, A=2584 → 2715
[TX021] Transfer $591: B=5485 → 4894, A=2715 → 3306
[TX022] Transfer $216: B=4894 → 4678, A=3306 → 3522
[TX023] Transfer $804: A=3522 → 2718, B=4678 → 5482
[TX024] Transfer $95: A=2718 → 2623, B=5482 → 5577
[TX025] Transfer $170: A=2623 → 2453, B=5577 → 5747
[TX026] Transfer $333: B=5747 → 5414, A=2453 → 2786
[TX027] Transfer $142: A=2786 → 2644, B=5414 → 5556
[TX028] Transfer $682: B=5556 → 4874, A=2644 → 3326
[TX029] Transfer $311: B=4874 → 4563, A=3326 → 3637
[TX030] Transfer $575: A=3637 → 3062, B=4563 → 5138
[TX031] Transfer $794: B=5138 → 4344, A=3062 → 3856
[TX032] Transfer $365: B=4344 → 3979, A=3856 → 4221
[TX033] Transfer $545: B=3979 → 3434, A=4221 → 4766
[TX034] Transfer $980: A=4766 → 3786, B=3434 → 4414
[TX035] Transfer $730: A=3786 → 3056, B=4414 → 5144
[TX036] Transfer $575: A=3056 → 2481, B=5144 → 5719
[TX037] Transfer $713: B=5719 → 5006, A=2481 → 3194
[TX038] Transfer $573: B=5006 → 4433, A=3194 → 3767
[TX039] Transfer $184: B=4433 → 4249, A=3767 → 3952
[TX040] Transfer $791: B=4249 → 3458, A=3951 → 4742
[TX041] Transfer $220: B=3458 → 3238, A=4742 → 4962
[TX042] Transfer $385: A=4962 → 4577, B=3238 → 3623
[TX043] Transfer $202: A=4577 → 4375, B=3623 → 3825
[TX044] Transfer $540: B=3825 → 3285, A=4375 → 4915
[TX045] Transfer $602: A=4915 → 4313, B=3285 → 3887
[TX046] Transfer $98: B=3887 → 3789, A=4313 → 4411
[TX047] Transfer $516: B=3789 → 3273, A=4411 → 4927
[TX048] Transfer $36: A=4927 → 4891, B=3273 → 3309
[TX049] Transfer $409: B=3309 → 2900, A=4891 → 5300
[TX050] Transfer $282: A=5300 → 5018, B=2900 → 3182
[TX051] Transfer $885: A=5018 → 4133, B=3182 → 4067
[TX052] Transfer $504: B=4067 → 3563, A=4133 → 4637
[TX053] Transfer $769: A=4637 → 3868, B=3563 → 4332
[TX054] Transfer $380: A=3868 → 3488, B=4332 → 4712
[TX055] Transfer $724: A=3488 → 2764, B=4712 → 5436
[TX056] Transfer $86: A=2764 → 2678, B=5436 → 5522
[TX057] Transfer $59: B=5522 → 5463, A=2678 → 2737
[TX058] Transfer $323: B=5463 → 5140, A=2737 → 3060
[TX059] Transfer $875: A=3060 → 2185, B=5140 → 6015
[TX060] Transfer $342: A=2185 → 1843, B=6015 → 6357
[TX061] Transfer $929: B=6357 → 5428, A=1843 → 2772
[TX062] Transfer $965: B=5428 → 4463, A=2772 → 3737
[TX063] Transfer $859: B=4463 → 3604, A=3737 → 4596
[TX064] Transfer $199: A=4596 → 4397, B=3604 → 3803
[TX065] Transfer $87: A=4397 → 4310, B=3803 → 3890
[TX066] Transfer $47: A=4310 → 4263, B=3890 → 3937
[TX067] Transfer $707: B=3937 → 3230, A=4263 → 4970
[TX068] Transfer $652: B=3230 → 2578, A=4970 → 5622
[TX069] Transfer $282: A=5622 → 5340, B=2578 → 2860
[TX070] Transfer $351: B=2860 → 2509, A=5340 → 5691
[TX071] Transfer $581: B=2509 → 1928, A=5691 → 6272
[TX072] Transfer $121: B=1928 → 1807, A=6272 → 6393
[TX073] Transfer $749: A=6393 → 5644, B=1807 → 2556
[TX074] Transfer $327: A=5644 → 5317, B=2556 → 2883
[TX075] Transfer $809: A=5317 → 4508, B=2883 → 3692
[TX076] Transfer $655: A=4508 → 3853, B=3692 → 4347
[TX077] Transfer $85: B=4347 → 4262, A=3853 → 3938
[TX078] Transfer $859: A=3938 → 3079, B=4262 → 5121
[TX079] Transfer $319: A=3079 → 2760, B=5121 → 5440
[TX080] Transfer $724: A=2760 → 2036, B=5440 → 6164
[TX081] Transfer $287: B=6164 → 5877, A=2036 → 2323
[TX082] Transfer $425: A=2323 → 1898, B=5877 → 6302
[TX083] Transfer $281: A=1898 → 1617, B=6302 → 6583
[TX084] Transfer $304: A=1617 → 1313, B=6583 → 6887
[TX085] Transfer $272: B=6887 → 6615, A=1313 → 1585
[TX086] Transfer $365: A=1585 → 1220, B=6615 → 6980
[TX087] Transfer $792: B=6980 → 6188, A=1220 → 2012
[TX088] Transfer $39: B=6188 → 6149, A=2012 → 2051
[TX089] Transfer $552: B=6149 → 5597, A=2051 → 2603
[TX090] Transfer $357: A=2603 → 2246, B=5597 → 5954
[TX091] Transfer $352: B=5954 → 5602, A=2246 → 2598
[TX092] Transfer $527: B=5602 → 5075, A=2598 → 3125
[TX093] Transfer $225: A=3125 → 2900, B=5075 → 5300
[TX094] Transfer $34: B=5300 → 5266, A=2900 → 2934
[TX095] Transfer $488: A=2934 → 2446, B=5266 → 5754
[TX096] Transfer $602: A=2446 → 1844, B=5754 → 6356
[TX097] Transfer $579: B=6356 → 5777, A=1844 → 2423
[TX098] Transfer $332: B=5777 → 5445, A=2423 → 2755
[TX099] Transfer $892: A=2755 → 1863, B=5445 → 6337
[TX100] Transfer $433: A=1863 → 1430, B=6337 → 6770
[TX101] Transfer $346: B=6770 → 6424, A=1430 → 1776
[TX102] Transfer $937: A=1776 → 839, B=6424 → 7361
[TX103] Transfer $168: B=7361 → 7193, A=839 → 1007
[TX104] Transfer $772: B=7193 → 6421, A=1007 → 1779
[TX105] Transfer $830: A=1779 → 949, B=6421 → 7251
[TX106] Transfer $750: B=7251 → 6501, A=949 → 1699
[TX107] Transfer $856: B=6501 → 5645, A=1699 → 2555
[TX108] Transfer $742: A=2555 → 1813, B=5645 → 6387
[TX109] Transfer $496: B=6387 → 5891, A=1813 → 2309
[TX110] Transfer $43: B=5891 → 5848, A=2309 → 2352
[TX111] Transfer $433: A=2352 → 1919, B=5848 → 6281
[TX112] Transfer $978: B=6281 → 5303, A=1919 → 2897
[TX113] Transfer $169: B=5303 → 5134, A=2897 → 3066
POSSIBLE BUG TYPES (choose exactly one):
- CALC_ERROR: Mathematical calculation is incorrect
- NEGATIVE_BAL: Account balance becomes negative
- LOST_UPDATE: Concurrent update causes lost transaction
- DUPLICATE_TXN: Same transaction processed multiple times
Identify the SINGLE bug if any exists.
Respond with ONLY a JSON object:
{"bug_type": "<type>", "bug_location": "<TX_ID>"
Your response:
|
CALC_ERROR
|
TX039
|
Mathematical calculation is incorrect
|
CALC_ERROR
| 113
|
{"bug_type": "CALC_ERROR", "bug_location": "TX039", "explanation": "Mathematical calculation is incorrect"}
|
{"bug_type": "CALC_ERROR", "n_ops": 113}
|
98
|
Analyze this banking transaction log for bugs.
Each operation shows the complete state change.
INITIAL STATE:
{
"account_A": 4000,
"account_B": 4200,
"total": 8200
}
RULES:
1. Total money must remain constant (conservation)
2. No account can go negative
3. All calculations must be mathematically correct
TRANSACTION LOG:
[TX001] Transfer $613: A=4000 → 3387, B=4200 → 4813
[TX002] Transfer $366: B=4813 → 4447, A=3387 → 3753
[TX003] Transfer $328: A=3753 → 3425, B=4447 → 4775
[TX004] Transfer $740: A=3425 → 2685, B=4775 → 5515
[TX005] Transfer $546: A=2685 → 2139, B=5515 → 6061
[TX006] Transfer $476: B=6061 → 5585, A=2139 → 2615
[TX007] Transfer $54: A=2615 → 2561, B=5585 → 5639
[TX008] Transfer $289: B=5639 → 5350, A=2561 → 2850
[TX009] Transfer $582: A=2850 → 2268, B=5350 → 5932
[TX010] Transfer $459: A=2268 → 1809, B=5932 → 6391
[TX011] Transfer $930: A=1809 → 879, B=6391 → 7321
[TX012] Transfer $278: A=879 → 601, B=7321 → 7599
[TX013] Transfer $249: B=7599 → 7350, A=601 → 850
[TX014] Transfer $433: A=850 → 417, B=7350 → 7783
[TX015] Transfer $288: A=417 → 129, B=7783 → 8071
[TX016] Transfer $364: B=8071 → 7707, A=129 → 493
[TX017] Transfer $354: A=493 → 139, B=7707 → 8061
[TX018] Transfer $23: A=139 → 116, B=8061 → 8084
[TX019] Transfer $10: A=116 → 106, B=8084 → 8094
[TX020] Transfer $3: A=106 → 103, B=8094 → 8097
[TX021] Transfer $907: B=8097 → 7190, A=103 → 1010
[TX022] Transfer $477: A=1010 → 533, B=7190 → 7667
[TX023] Transfer $846: B=7667 → 6821, A=533 → 1379
[TX024] Transfer $637: A=1379 → 742, B=6821 → 7458
[TX025] Transfer $82: B=7458 → 7376, A=742 → 824
[TX026] Transfer $147: A=824 → 677, B=7376 → 7523
[TX027] Transfer $31: A=677 → 646, B=7523 → 7554
[TX028] Transfer $412: B=7554 → 7142, A=646 → 1058
[TX029] Transfer $908: B=7142 → 6234, A=1058 → 1966
[TX030] Transfer $154: B=6234 → 6080, A=1966 → 2120
[TX031] Transfer $929: B=6080 → 5151, A=2120 → 3049
[TX032] Transfer $115: A=3049 → 2934, B=5151 → 5266
[TX033] Transfer $509: A=2934 → 2425, B=5266 → 5775
[TX034] Transfer $569: A=2425 → 1856, B=5775 → 6344
[TX035] Transfer $301: B=6344 → 6043, A=1856 → 2157
[TX036] Transfer $267: B=6043 → 5776, A=2157 → 2424
[TX037] Transfer $819: B=5776 → 4957, A=2424 → 3243
[TX038] Transfer $333: A=3243 → 2910, B=4957 → 5290
[TX039] Thread T1: READ A=2910
[TX040] Thread T2: READ A=2910
[TX041] Thread T1: COMMIT A=2910 → 2840
[TX042] Thread T2: COMMIT A=2910 → 2738
[TX043] Transfer $850: B=5290 → 4440, A=2738 → 3588
[TX044] Transfer $775: B=4440 → 3665, A=3588 → 4363
[TX045] Transfer $717: A=4363 → 3646, B=3665 → 4382
[TX046] Transfer $140: A=3646 → 3506, B=4382 → 4522
[TX047] Transfer $558: B=4522 → 3964, A=3506 → 4064
[TX048] Transfer $468: A=4064 → 3596, B=3964 → 4432
[TX049] Transfer $454: A=3596 → 3142, B=4432 → 4886
[TX050] Transfer $99: B=4886 → 4787, A=3142 → 3241
[TX051] Transfer $685: A=3241 → 2556, B=4787 → 5472
[TX052] Transfer $385: B=5472 → 5087, A=2556 → 2941
[TX053] Transfer $781: B=5087 → 4306, A=2941 → 3722
[TX054] Transfer $906: B=4306 → 3400, A=3722 → 4628
[TX055] Transfer $773: A=4628 → 3855, B=3400 → 4173
[TX056] Transfer $528: B=4173 → 3645, A=3855 → 4383
[TX057] Transfer $525: B=3645 → 3120, A=4383 → 4908
[TX058] Transfer $165: B=3120 → 2955, A=4908 → 5073
[TX059] Transfer $436: A=5073 → 4637, B=2955 → 3391
[TX060] Transfer $619: A=4637 → 4018, B=3391 → 4010
[TX061] Transfer $22: B=4010 → 3988, A=4018 → 4040
[TX062] Transfer $974: A=4040 → 3066, B=3988 → 4962
[TX063] Transfer $764: A=3066 → 2302, B=4962 → 5726
[TX064] Transfer $320: B=5726 → 5406, A=2302 → 2622
[TX065] Transfer $731: B=5406 → 4675, A=2622 → 3353
[TX066] Transfer $941: B=4675 → 3734, A=3353 → 4294
[TX067] Transfer $453: A=4294 → 3841, B=3734 → 4187
[TX068] Transfer $972: A=3841 → 2869, B=4187 → 5159
[TX069] Transfer $289: A=2869 → 2580, B=5159 → 5448
[TX070] Transfer $317: A=2580 → 2263, B=5448 → 5765
[TX071] Transfer $675: B=5765 → 5090, A=2263 → 2938
[TX072] Transfer $60: B=5090 → 5030, A=2938 → 2998
[TX073] Transfer $624: A=2998 → 2374, B=5030 → 5654
[TX074] Transfer $306: A=2374 → 2068, B=5654 → 5960
[TX075] Transfer $881: B=5960 → 5079, A=2068 → 2949
[TX076] Transfer $806: A=2949 → 2143, B=5079 → 5885
[TX077] Transfer $254: A=2143 → 1889, B=5885 → 6139
POSSIBLE BUG TYPES (choose exactly one):
- CALC_ERROR: Mathematical calculation is incorrect
- NEGATIVE_BAL: Account balance becomes negative
- LOST_UPDATE: Concurrent update causes lost transaction
- DUPLICATE_TXN: Same transaction processed multiple times
Identify the SINGLE bug if any exists.
Respond with ONLY a JSON object:
{"bug_type": "<type>", "bug_location": "<TX_ID>"
Your response:
|
LOST_UPDATE
|
TX042
|
Thread T2 overwrites T1's change
|
LOST_UPDATE
| 77
|
{"bug_type": "LOST_UPDATE", "bug_location": "TX042", "explanation": "Thread T2 overwrites T1's change"}
|
{"bug_type": "LOST_UPDATE", "n_ops": 77}
|
52
|
Analyze this banking transaction log for bugs.
Each operation shows the complete state change.
INITIAL STATE:
{
"account_A": 4000,
"account_B": 4200,
"total": 8200
}
RULES:
1. Total money must remain constant (conservation)
2. No account can go negative
3. All calculations must be mathematically correct
TRANSACTION LOG:
[TX001] Transfer $598: A=4000 → 3402, B=4200 → 4798
[TX002] Transfer $806: B=4798 → 3992, A=3402 → 4208
[TX003] Transfer $59: A=4208 → 4149, B=3992 → 4051
[TX004] Transfer $942: A=4149 → 3207, B=4051 → 4993
[TX005] Transfer $95: A=3207 → 3112, B=4993 → 5088
[TX006] Transfer $445: A=3112 → 2667, B=5088 → 5533
[TX007] Transfer $53: A=2667 → 2614, B=5533 → 5586
[TX008] Transfer $330: A=2614 → 2284, B=5586 → 5916
[TX009] Transfer $839: A=2284 → 1445, B=5916 → 6755
[TX010] Transfer $621: A=1445 → 824, B=6755 → 7376
[TX011] Transfer $296: A=824 → 528, B=7376 → 7672
[TX012] Transfer $96: A=528 → 432, B=7672 → 7768
[TX013] Transfer $92: A=432 → 340, B=7768 → 7860
[TX014] Transfer $38: A=340 → 302, B=7860 → 7898
[TX015] Transfer $181: A=302 → 121, B=7898 → 8079
[TX016] Transfer $7: A=121 → 114, B=8079 → 8086
[TX017] Transfer $168: B=8086 → 7918, A=114 → 282
[TX018] Transfer $617: B=7918 → 7301, A=282 → 899
[TX019] Transfer $225: B=7301 → 7076, A=899 → 1124
[TX020] Transfer $846: B=7076 → 6230, A=1124 → 1970
[TX021] Transfer $545: B=6230 → 5685, A=1970 → 2515
[TX022] Transfer $290: A=2515 → 2225, B=5685 → 5975
[TX023] Transfer $65: A=2225 → 2160, B=5975 → 6040
[TX024] Transfer $354: A=2160 → 1806, B=6040 → 6394
[TX025] Transfer $83: A=1806 → 1723, B=6394 → 6477
[TX026] Transfer $764: B=6477 → 5713, A=1723 → 2487
[TX027] Transfer $604: A=2487 → 1883, B=5713 → 6317
[TX028] Transfer $584: B=6317 → 5733, A=1883 → 2467
[TX029] Transfer $463: B=5733 → 5270, A=2467 → 2930
[TX030] Transfer $381: B=5270 → 4889, A=2930 → 3311
[TX031] Transfer $783: B=4889 → 4106, A=3311 → 4094
[TX032] Transfer $561: B=4106 → 3545, A=4094 → 4655
[TX033] Transfer $603: A=4655 → 4052, B=3545 → 4148
[TX034] Transfer $709: A=4052 → 3343, B=4148 → 4857
[TX035] Transfer $478: B=4857 → 4379, A=3343 → 3821
[TX036] Transfer $947: B=4379 → 3432, A=3821 → 4768
[TX037] Transfer $891: B=3432 → 2541, A=4768 → 5659
[TX038] Transfer $158: B=2541 → 2383, A=5659 → 5817
[TX039] Transfer $431: A=5817 → 5386, B=2383 → 2814
[TX040] Transfer $809: A=5386 → 4577, B=2814 → 3623
[TX041] Transfer $893: B=3623 → 2730, A=4577 → 5470
[TX042] Transfer $376: A=5470 → 5094, B=2730 → 3106
[TX043] Transfer $812: A=5094 → 4282, B=3106 → 3918
[TX044] Transfer $609: A=4282 → 3673, B=3918 → 4527
[TX045] Transfer $99: A=3673 → 3574, B=4527 → 4627
[TX046] Transfer $155: B=4626 → 4471, A=3574 → 3729
[TX047] Transfer $204: B=4471 → 4267, A=3729 → 3933
[TX048] Transfer $403: A=3933 → 3530, B=4267 → 4670
[TX049] Transfer $851: A=3530 → 2679, B=4670 → 5521
[TX050] Transfer $196: B=5521 → 5325, A=2679 → 2875
[TX051] Transfer $445: B=5325 → 4880, A=2875 → 3320
[TX052] Transfer $501: B=4880 → 4379, A=3320 → 3821
[TX053] Transfer $986: A=3821 → 2835, B=4379 → 5365
[TX054] Transfer $977: A=2835 → 1858, B=5365 → 6342
[TX055] Transfer $624: B=6342 → 5718, A=1858 → 2482
[TX056] Transfer $242: B=5718 → 5476, A=2482 → 2724
[TX057] Transfer $428: B=5476 → 5048, A=2724 → 3152
[TX058] Transfer $981: B=5048 → 4067, A=3152 → 4133
[TX059] Transfer $348: B=4067 → 3719, A=4133 → 4481
[TX060] Transfer $628: B=3719 → 3091, A=4481 → 5109
[TX061] Transfer $544: A=5109 → 4565, B=3091 → 3635
[TX062] Transfer $744: B=3635 → 2891, A=4565 → 5309
[TX063] Transfer $380: B=2891 → 2511, A=5309 → 5689
[TX064] Transfer $20: B=2511 → 2491, A=5689 → 5709
[TX065] Transfer $429: B=2491 → 2062, A=5709 → 6138
[TX066] Transfer $969: A=6138 → 5169, B=2062 → 3031
[TX067] Transfer $933: B=3031 → 2098, A=5169 → 6102
[TX068] Transfer $807: B=2098 → 1291, A=6102 → 6909
[TX069] Transfer $593: B=1291 → 698, A=6909 → 7502
[TX070] Transfer $132: B=698 → 566, A=7502 → 7634
[TX071] Transfer $364: B=566 → 202, A=7634 → 7998
[TX072] Transfer $502: A=7998 → 7496, B=202 → 704
[TX073] Transfer $322: B=704 → 382, A=7496 → 7818
[TX074] Transfer $770: A=7818 → 7048, B=382 → 1152
[TX075] Transfer $85: A=7048 → 6963, B=1152 → 1237
[TX076] Transfer $619: B=1237 → 618, A=6963 → 7582
[TX077] Transfer $462: B=618 → 156, A=7582 → 8044
[TX078] Transfer $52: B=156 → 104, A=8044 → 8096
[TX079] Transfer $3: B=104 → 101, A=8096 → 8099
[TX080] Transfer $254: A=8099 → 7845, B=101 → 355
[TX081] Transfer $337: A=7845 → 7508, B=355 → 692
[TX082] Transfer $577: B=692 → 115, A=7508 → 8085
[TX083] Transfer $981: A=8085 → 7104, B=115 → 1096
[TX084] Transfer $323: B=1096 → 773, A=7104 → 7427
[TX085] Transfer $982: A=7427 → 6445, B=773 → 1755
[TX086] Transfer $753: A=6445 → 5692, B=1755 → 2508
[TX087] Transfer $538: A=5692 → 5154, B=2508 → 3046
[TX088] Transfer $811: B=3046 → 2235, A=5154 → 5965
[TX089] Transfer $719: B=2235 → 1516, A=5965 → 6684
[TX090] Transfer $269: A=6684 → 6415, B=1516 → 1785
POSSIBLE BUG TYPES (choose exactly one):
- CALC_ERROR: Mathematical calculation is incorrect
- NEGATIVE_BAL: Account balance becomes negative
- LOST_UPDATE: Concurrent update causes lost transaction
- DUPLICATE_TXN: Same transaction processed multiple times
Identify the SINGLE bug if any exists.
Respond with ONLY a JSON object:
{"bug_type": "<type>", "bug_location": "<TX_ID>"
Your response:
|
CALC_ERROR
|
TX045
|
Mathematical calculation is incorrect
|
CALC_ERROR
| 90
|
{"bug_type": "CALC_ERROR", "bug_location": "TX045", "explanation": "Mathematical calculation is incorrect"}
|
{"bug_type": "CALC_ERROR", "n_ops": 90}
|
85
|
Analyze this banking transaction log for bugs.
Each operation shows the complete state change.
INITIAL STATE:
{
"account_A": 4000,
"account_B": 4200,
"total": 8200
}
RULES:
1. Total money must remain constant (conservation)
2. No account can go negative
3. All calculations must be mathematically correct
TRANSACTION LOG:
[TX001] Transfer $292: B=4200 → 3908, A=4000 → 4292
[TX002] Transfer $383: A=4292 → 3909, B=3908 → 4291
[TX003] Transfer $993: B=4291 → 3298, A=3909 → 4902
[TX004] Transfer $768: A=4902 → 4134, B=3298 → 4066
[TX005] Transfer $192: A=4134 → 3942, B=4066 → 4258
[TX006] Transfer $171: B=4258 → 4087, A=3942 → 4113
[TX007] Transfer $13: B=4087 → 4074, A=4113 → 4126
[TX008] Transfer $409: B=4074 → 3665, A=4126 → 4535
[TX009] Transfer $973: A=4535 → 3562, B=3665 → 4638
[TX010] Transfer $195: B=4638 → 4443, A=3562 → 3757
[TX011] Transfer $626: B=4443 → 3817, A=3757 → 4383
[TX012] Transfer $222: A=4383 → 4161, B=3817 → 4039
[TX013] Transfer $887: B=4039 → 3152, A=4161 → 5048
[TX014] Transfer $729: B=3152 → 2423, A=5048 → 5777
[TX015] Transfer $627: B=2423 → 1796, A=5777 → 6404
[TX016] Transfer $940: A=6404 → 5464, B=1796 → 2736
[TX017] Transfer $310: B=2736 → 2426, A=5464 → 5774
[TX018] Transfer $262: A=5774 → 5512, B=2426 → 2688
[TX019] Transfer $537: A=5512 → 4975, B=2688 → 3225
[TX020] Transfer $99: B=3225 → 3126, A=4975 → 5074
[TX021] Transfer $619: B=3126 → 2507, A=5074 → 5693
[TX022] Transfer $160: A=5693 → 5533, B=2507 → 2667
[TX023] Transfer $12: A=5533 → 5521, B=2667 → 2679
[TX024] Transfer $920: A=5521 → 4601, B=2679 → 3599
[TX025] Transfer $306: A=4601 → 4295, B=3599 → 3905
[TX026] Transfer $954: A=4295 → 3341, B=3905 → 4859
[TX027] Transfer $862: B=4859 → 3997, A=3341 → 4203
[TX028] Transfer $760: A=4203 → 3443, B=3997 → 4757
[TX029] Transfer $893: A=3443 → 2550, B=4757 → 5650
[TX030] Transfer $224: B=5650 → 5426, A=2550 → 2774
[TX031] Transfer $19: B=5426 → 5407, A=2774 → 2793
[TX032] Transfer $331: A=2793 → 2462, B=5407 → 5738
[TX033] Transfer $137: A=2462 → 2325, B=5738 → 5875
[TX034] Transfer $661: A=2325 → 1664, B=5875 → 6536
[TX035] Transfer $306: B=6536 → 6230, A=1664 → 1970
[TX036] Transfer $305: A=1970 → 1665, B=6230 → 6535
[TX037] Transfer $637: A=1665 → 1028, B=6535 → 7172
[TX038] Transfer $533: A=1028 → 495, B=7172 → 7705
[TX039] Transfer $174: A=495 → 321, B=7705 → 7879
[TX040] Transfer $147: A=321 → 174, B=7879 → 8026
[TX041] Transfer $440: B=8026 → 7586, A=174 → 614
[TX042] Transfer $412: A=614 → 202, B=7586 → 7998
[TX043] Transfer $85: A=202 → 117, B=7998 → 8083
[TX044] Transfer $548: B=8083 → 7535, A=117 → 665
[TX045] Transfer $89: A=665 → 576, B=7535 → 7624
[TX046] Transfer $253: B=7624 → 7371, A=576 → 829
[TX047] Transfer $632: A=829 → 197, B=7371 → 8003
[TX048] Transfer $104: B=8003 → 7899, A=197 → 301
[TX049] Transfer $493: B=7899 → 7406, A=301 → 794
[TX050] Transfer $8: A=794 → 786, B=7406 → 7414
[TX051] Transfer $816: B=7414 → 6598, A=786 → 1602
[TX052] Transfer $265: B=6598 → 6333, A=1602 → 1867
[TX053] Transfer $327: A=1867 → 1540, B=6333 → 6659
[TX054] Transfer $495: A=1540 → 1045, B=6660 → 7155
[TX055] Transfer $101: B=7155 → 7054, A=1045 → 1146
[TX056] Transfer $510: A=1146 → 636, B=7054 → 7564
[TX057] Transfer $203: B=7564 → 7361, A=636 → 839
[TX058] Transfer $510: A=839 → 329, B=7361 → 7871
[TX059] Transfer $233: B=7871 → 7638, A=329 → 562
[TX060] Transfer $777: B=7638 → 6861, A=562 → 1339
[TX061] Transfer $152: A=1339 → 1187, B=6861 → 7013
[TX062] Transfer $606: B=7013 → 6407, A=1187 → 1793
[TX063] Transfer $200: A=1793 → 1593, B=6407 → 6607
[TX064] Transfer $43: A=1593 → 1550, B=6607 → 6650
[TX065] Transfer $751: A=1550 → 799, B=6650 → 7401
[TX066] Transfer $319: A=799 → 480, B=7401 → 7720
[TX067] Transfer $295: B=7720 → 7425, A=480 → 775
[TX068] Transfer $507: A=775 → 268, B=7425 → 7932
[TX069] Transfer $456: B=7932 → 7476, A=268 → 724
[TX070] Transfer $795: B=7476 → 6681, A=724 → 1519
[TX071] Transfer $69: A=1519 → 1450, B=6681 → 6750
[TX072] Transfer $425: A=1450 → 1025, B=6750 → 7175
[TX073] Transfer $798: B=7175 → 6377, A=1025 → 1823
[TX074] Transfer $646: A=1823 → 1177, B=6377 → 7023
[TX075] Transfer $93: A=1177 → 1084, B=7023 → 7116
[TX076] Transfer $986: B=7116 → 6130, A=1084 → 2070
[TX077] Transfer $82: A=2070 → 1988, B=6130 → 6212
[TX078] Transfer $394: B=6212 → 5818, A=1988 → 2382
[TX079] Transfer $39: A=2382 → 2343, B=5818 → 5857
[TX080] Transfer $523: A=2343 → 1820, B=5857 → 6380
[TX081] Transfer $356: A=1820 → 1464, B=6380 → 6736
[TX082] Transfer $330: A=1464 → 1134, B=6736 → 7066
[TX083] Transfer $279: B=7066 → 6787, A=1134 → 1413
[TX084] Transfer $256: B=6787 → 6531, A=1413 → 1669
[TX085] Transfer $50: A=1669 → 1619, B=6531 → 6581
[TX086] Transfer $4: B=6581 → 6577, A=1619 → 1623
[TX087] Transfer $13: A=1623 → 1610, B=6577 → 6590
POSSIBLE BUG TYPES (choose exactly one):
- CALC_ERROR: Mathematical calculation is incorrect
- NEGATIVE_BAL: Account balance becomes negative
- LOST_UPDATE: Concurrent update causes lost transaction
- DUPLICATE_TXN: Same transaction processed multiple times
Identify the SINGLE bug if any exists.
Respond with ONLY a JSON object:
{"bug_type": "<type>", "bug_location": "<TX_ID>"
Your response:
|
CALC_ERROR
|
TX053
|
Mathematical calculation is incorrect
|
CALC_ERROR
| 87
|
{"bug_type": "CALC_ERROR", "bug_location": "TX053", "explanation": "Mathematical calculation is incorrect"}
|
{"bug_type": "CALC_ERROR", "n_ops": 87}
|
12
|
Analyze this banking transaction log for bugs.
Each operation shows the complete state change.
INITIAL STATE:
{
"account_A": 4000,
"account_B": 4200,
"total": 8200
}
RULES:
1. Total money must remain constant (conservation)
2. No account can go negative
3. All calculations must be mathematically correct
TRANSACTION LOG:
[TX001] Transfer $591: A=4000 → 3409, B=4200 → 4791
[TX002] Transfer $959: B=4791 → 3832, A=3409 → 4368
[TX003] Transfer $244: A=4368 → 4124, B=3832 → 4076
[TX004] Transfer $937: B=4076 → 3139, A=4124 → 5061
[TX005] Transfer $972: A=5061 → 4089, B=3139 → 4111
[TX006] Transfer $858: A=4089 → 3231, B=4111 → 4969
[TX007] Transfer $181: B=4969 → 4788, A=3231 → 3412
[TX008] Transfer $94: B=4788 → 4694, A=3412 → 3506
[TX009] Transfer $618: A=3506 → 2888, B=4694 → 5312
[TX010] Transfer $541: A=2888 → 2347, B=5312 → 5853
[TX011] Transfer $341: B=5853 → 5512, A=2347 → 2688
[TX012] Transfer $350: A=2688 → 2338, B=5512 → 5862
[TX013] Transfer $62: A=2338 → 2276, B=5862 → 5924
[TX014] Transfer $602: A=2276 → 1674, B=5924 → 6526
[TX015] Transfer $868: A=1674 → 806, B=6526 → 7394
[TX016] Transfer $384: B=7394 → 7010, A=806 → 1190
[TX017] Transfer $346: B=7010 → 6664, A=1190 → 1536
[TX018] Transfer $141: B=6664 → 6523, A=1536 → 1677
[TX019] Transfer $812: A=1677 → 865, B=6523 → 7335
[TX020] Transfer $180: B=7335 → 7155, A=865 → 1045
[TX021] Transfer $683: B=7155 → 6472, A=1045 → 1728
[TX022] Transfer $316: A=1728 → 1412, B=6472 → 6788
[TX023] Transfer $183: B=6788 → 6605, A=1412 → 1595
[TX024] Transfer $873: A=1595 → 722, B=6605 → 7478
[TX025] Transfer $618: A=722 → 104, B=7478 → 8096
[TX026] Transfer $656: B=8096 → 7440, A=104 → 760
[TX027] Transfer $146: A=760 → 614, B=7440 → 7586
[TX028] Transfer $245: B=7586 → 7341, A=614 → 859
[TX029] Transfer $173: B=7341 → 7168, A=859 → 1032
[TX030] Transfer $459: A=1032 → 573, B=7168 → 7627
[TX031] Transfer $109: A=573 → 464, B=7627 → 7736
[TX032] Transfer $181: A=464 → 283, B=7736 → 7917
[TX033] Transfer $739: B=7917 → 7178, A=283 → 1022
[TX034] Transfer $397: A=1022 → 625, B=7178 → 7575
[TX035] Transfer $994: B=7575 → 6581, A=625 → 1619
[TX036] Transfer $506: A=1619 → 1113, B=6581 → 7087
[TX037] Transfer $561: B=7087 → 6526, A=1113 → 1674
[TX038] Transfer $850: B=6526 → 5676, A=1674 → 2524
[TX039] Transfer $168: B=5676 → 5508, A=2524 → 2692
[TX040] Transfer $820: B=5508 → 4688, A=2692 → 3512
[TX041] Transfer $22: A=3512 → 3490, B=4688 → 4710
[TX042] Transfer $976: B=4710 → 3734, A=3490 → 4466
[TX043] Transfer $352: A=4466 → 4114, B=3734 → 4086
[TX044] Transfer $166: A=4114 → 3948, B=4086 → 4252
[TX045] Transfer $348: A=3948 → 3600, B=4252 → 4600
[TX046] Transfer $443: B=4600 → 4157, A=3600 → 4043
[TX047] Transfer $162: A=4043 → 3881, B=4157 → 4319
[TX048] Transfer $341: A=3881 → 3540, B=4319 → 4660
[TX049] Transfer $421: A=3540 → 3119, B=4660 → 5081
[TX050] Transfer $306: B=5081 → 4775, A=3119 → 3425
[TX051] Transfer $52: A=3425 → 3373, B=4775 → 4827
[TX052] Transfer $159: B=4827 → 4668, A=3373 → 3532
[TX053] Transfer $5: A=3532 → 3527, B=4668 → 4673
[TX054] Transfer $303: B=4673 → 4370, A=3527 → 3830
[TX055] Transfer $101: B=4370 → 4269, A=3830 → 3931
[TX056] Transfer $176: A=3931 → 3755, B=4269 → 4445
[TX057] Transfer $486: B=4445 → 3959, A=3755 → 4241
[TX058] Transfer $805: A=4241 → 3436, B=3959 → 4764
[TX059] Transfer $502: B=4764 → 4262, A=3436 → 3938
[TX060] Transfer $659: B=4262 → 3603, A=3938 → 4597
[TX061] Transfer $381: B=3603 → 3222, A=4597 → 4978
[TX062] Transfer $193: B=3222 → 3029, A=4978 → 5171
[TX063] Transfer $271: B=3029 → 2758, A=5171 → 5442
[TX064] Transfer $271: B=2758 → 2487, A=5442 → 5713
[TX065] Transfer $579: A=5713 → 5134, B=2487 → 3066
[TX066] Transfer $772: A=5134 → 4362, B=3066 → 3838
[TX067] Transfer $686: A=4362 → 3676, B=3838 → 4524
[TX068] Transfer $996: B=4524 → 3528, A=3676 → 4672
[TX069] Transfer $862: A=4672 → 3810, B=3528 → 4390
[TX070] Transfer $990: B=4390 → 3400, A=3810 → 4798
[TX071] Transfer $308: A=4800 → 4492, B=3400 → 3708
[TX072] Transfer $926: A=4492 → 3566, B=3708 → 4634
[TX073] Transfer $125: A=3566 → 3441, B=4634 → 4759
[TX074] Transfer $973: B=4759 → 3786, A=3441 → 4414
[TX075] Transfer $829: A=4414 → 3585, B=3786 → 4615
[TX076] Transfer $45: A=3585 → 3540, B=4615 → 4660
[TX077] Transfer $701: B=4660 → 3959, A=3540 → 4241
[TX078] Transfer $844: B=3959 → 3115, A=4241 → 5085
[TX079] Transfer $329: A=5085 → 4756, B=3115 → 3444
[TX080] Transfer $399: A=4756 → 4357, B=3444 → 3843
[TX081] Transfer $879: B=3843 → 2964, A=4357 → 5236
[TX082] Transfer $941: B=2964 → 2023, A=5236 → 6177
[TX083] Transfer $117: A=6177 → 6060, B=2023 → 2140
[TX084] Transfer $153: B=2140 → 1987, A=6060 → 6213
[TX085] Transfer $578: A=6213 → 5635, B=1987 → 2565
[TX086] Transfer $890: A=5635 → 4745, B=2565 → 3455
[TX087] Transfer $272: B=3455 → 3183, A=4745 → 5017
[TX088] Transfer $587: B=3183 → 2596, A=5017 → 5604
[TX089] Transfer $178: B=2596 → 2418, A=5604 → 5782
[TX090] Transfer $149: B=2418 → 2269, A=5782 → 5931
[TX091] Transfer $407: B=2269 → 1862, A=5931 → 6338
[TX092] Transfer $52: B=1862 → 1810, A=6338 → 6390
[TX093] Transfer $920: B=1810 → 890, A=6390 → 7310
[TX094] Transfer $347: B=890 → 543, A=7310 → 7657
[TX095] Transfer $145: B=543 → 398, A=7657 → 7802
[TX096] Transfer $118: B=398 → 280, A=7802 → 7920
[TX097] Transfer $999: A=7920 → 6921, B=280 → 1279
[TX098] Transfer $277: B=1279 → 1002, A=6921 → 7198
[TX099] Transfer $194: B=1002 → 808, A=7198 → 7392
[TX100] Transfer $418: B=808 → 390, A=7392 → 7810
[TX101] Transfer $30: B=390 → 360, A=7810 → 7840
[TX102] Transfer $320: A=7840 → 7520, B=360 → 680
[TX103] Transfer $538: B=680 → 142, A=7520 → 8058
[TX104] Transfer $199: A=8058 → 7859, B=142 → 341
[TX105] Transfer $257: A=7859 → 7602, B=341 → 598
[TX106] Transfer $53: A=7602 → 7549, B=598 → 651
[TX107] Transfer $282: B=651 → 369, A=7549 → 7831
POSSIBLE BUG TYPES (choose exactly one):
- CALC_ERROR: Mathematical calculation is incorrect
- NEGATIVE_BAL: Account balance becomes negative
- LOST_UPDATE: Concurrent update causes lost transaction
- DUPLICATE_TXN: Same transaction processed multiple times
Identify the SINGLE bug if any exists.
Respond with ONLY a JSON object:
{"bug_type": "<type>", "bug_location": "<TX_ID>"
Your response:
|
CALC_ERROR
|
TX070
|
Mathematical calculation is incorrect
|
CALC_ERROR
| 107
|
{"bug_type": "CALC_ERROR", "bug_location": "TX070", "explanation": "Mathematical calculation is incorrect"}
|
{"bug_type": "CALC_ERROR", "n_ops": 107}
|
36
|
Analyze this banking transaction log for bugs.
Each operation shows the complete state change.
INITIAL STATE:
{
"account_A": 4000,
"account_B": 4200,
"total": 8200
}
RULES:
1. Total money must remain constant (conservation)
2. No account can go negative
3. All calculations must be mathematically correct
TRANSACTION LOG:
[TX001] Transfer $312: B=4200 → 3888, A=4000 → 4312
[TX002] Thread T1: READ A=4312
[TX003] Thread T2: READ A=4312
[TX004] Thread T1: COMMIT A=4312 → 4187
[TX005] Thread T2: COMMIT A=4312 → 4194
[TX006] Transfer $231: A=4194 → 3963, B=3888 → 4119
[TX007] Transfer $300: A=3963 → 3663, B=4119 → 4419
[TX008] Transfer $966: A=3663 → 2697, B=4419 → 5385
[TX009] Transfer $278: B=5385 → 5107, A=2697 → 2975
[TX010] Transfer $845: A=2975 → 2130, B=5107 → 5952
[TX011] Transfer $3: A=2130 → 2127, B=5952 → 5955
[TX012] Transfer $334: B=5955 → 5621, A=2127 → 2461
[TX013] Transfer $741: A=2461 → 1720, B=5621 → 6362
[TX014] Transfer $921: A=1720 → 799, B=6362 → 7283
[TX015] Transfer $60: B=7283 → 7223, A=799 → 859
[TX016] Transfer $226: A=859 → 633, B=7223 → 7449
[TX017] Transfer $264: B=7449 → 7185, A=633 → 897
[TX018] Transfer $741: A=897 → 156, B=7185 → 7926
[TX019] Transfer $892: B=7926 → 7034, A=156 → 1048
[TX020] Transfer $227: A=1048 → 821, B=7034 → 7261
[TX021] Transfer $210: B=7261 → 7051, A=821 → 1031
[TX022] Transfer $458: B=7051 → 6593, A=1031 → 1489
[TX023] Transfer $379: A=1489 → 1110, B=6593 → 6972
[TX024] Transfer $97: A=1110 → 1013, B=6972 → 7069
[TX025] Transfer $472: B=7069 → 6597, A=1013 → 1485
[TX026] Transfer $195: A=1485 → 1290, B=6597 → 6792
[TX027] Transfer $665: B=6792 → 6127, A=1290 → 1955
[TX028] Transfer $319: B=6127 → 5808, A=1955 → 2274
[TX029] Transfer $839: A=2274 → 1435, B=5808 → 6647
[TX030] Transfer $73: B=6647 → 6574, A=1435 → 1508
[TX031] Transfer $438: A=1508 → 1070, B=6574 → 7012
[TX032] Transfer $932: A=1070 → 138, B=7012 → 7944
[TX033] Transfer $743: B=7944 → 7201, A=138 → 881
[TX034] Transfer $619: A=881 → 262, B=7201 → 7820
[TX035] Transfer $100: A=262 → 162, B=7820 → 7920
[TX036] Transfer $54: A=162 → 108, B=7920 → 7974
[TX037] Transfer $3: A=108 → 105, B=7974 → 7977
[TX038] Transfer $4: A=105 → 101, B=7977 → 7981
[TX039] Balance check: A=101
[TX040] Balance check: A=101
[TX041] Transfer $209: B=7981 → 7772, A=101 → 310
[TX042] Transfer $196: A=310 → 114, B=7772 → 7968
[TX043] Transfer $316: B=7968 → 7652, A=114 → 430
[TX044] Transfer $160: B=7652 → 7492, A=430 → 590
[TX045] Transfer $280: A=590 → 310, B=7492 → 7772
[TX046] Transfer $23: B=7772 → 7749, A=310 → 333
[TX047] Transfer $141: A=333 → 192, B=7749 → 7890
[TX048] Transfer $525: B=7890 → 7365, A=192 → 717
[TX049] Transfer $3: B=7365 → 7362, A=717 → 720
[TX050] Transfer $234: A=720 → 486, B=7362 → 7596
[TX051] Transfer $152: B=7596 → 7444, A=486 → 638
[TX052] Transfer $233: B=7444 → 7211, A=638 → 871
[TX053] Transfer $505: B=7211 → 6706, A=871 → 1376
[TX054] Transfer $231: A=1376 → 1145, B=6706 → 6937
[TX055] Transfer $367: A=1145 → 778, B=6937 → 7304
[TX056] Transfer $123: A=778 → 655, B=7304 → 7427
[TX057] Transfer $919: B=7427 → 6508, A=655 → 1574
[TX058] Transfer $184: A=1574 → 1390, B=6508 → 6692
[TX059] Transfer $616: B=6692 → 6076, A=1390 → 2006
[TX060] Transfer $155: A=2006 → 1851, B=6076 → 6231
[TX061] Transfer $358: B=6231 → 5873, A=1851 → 2209
[TX062] Transfer $940: A=2209 → 1269, B=5873 → 6813
[TX063] Transfer $957: B=6813 → 5856, A=1269 → 2226
[TX064] Transfer $809: B=5856 → 5047, A=2226 → 3035
[TX065] Transfer $798: A=3035 → 2237, B=5047 → 5845
[TX066] Transfer $153: A=2237 → 2084, B=5845 → 5998
[TX067] Transfer $740: B=5998 → 5258, A=2084 → 2824
[TX068] Transfer $117: B=5258 → 5141, A=2824 → 2941
[TX069] Transfer $150: B=5141 → 4991, A=2941 → 3091
[TX070] Transfer $132: A=3091 → 2959, B=4991 → 5123
[TX071] Transfer $363: A=2959 → 2596, B=5123 → 5486
[TX072] Transfer $436: B=5486 → 5050, A=2596 → 3032
[TX073] Transfer $618: B=5050 → 4432, A=3032 → 3650
[TX074] Transfer $823: B=4432 → 3609, A=3650 → 4473
[TX075] Transfer $430: A=4473 → 4043, B=3609 → 4039
[TX076] Transfer $547: B=4039 → 3492, A=4043 → 4590
[TX077] Transfer $87: A=4590 → 4503, B=3492 → 3579
[TX078] Transfer $721: B=3579 → 2858, A=4503 → 5224
[TX079] Transfer $372: A=5224 → 4852, B=2858 → 3230
[TX080] Transfer $873: A=4852 → 3979, B=3230 → 4103
[TX081] Transfer $573: A=3979 → 3406, B=4103 → 4676
[TX082] Transfer $945: B=4676 → 3731, A=3406 → 4351
[TX083] Transfer $935: A=4351 → 3416, B=3731 → 4666
[TX084] Transfer $871: B=4666 → 3795, A=3416 → 4287
[TX085] Transfer $473: A=4287 → 3814, B=3795 → 4268
[TX086] Transfer $250: A=3814 → 3564, B=4268 → 4518
[TX087] Transfer $59: A=3564 → 3505, B=4518 → 4577
[TX088] Transfer $987: A=3505 → 2518, B=4577 → 5564
[TX089] Transfer $752: A=2518 → 1766, B=5564 → 6316
[TX090] Transfer $382: A=1766 → 1384, B=6316 → 6698
[TX091] Transfer $680: A=1384 → 704, B=6698 → 7378
POSSIBLE BUG TYPES (choose exactly one):
- CALC_ERROR: Mathematical calculation is incorrect
- NEGATIVE_BAL: Account balance becomes negative
- LOST_UPDATE: Concurrent update causes lost transaction
- DUPLICATE_TXN: Same transaction processed multiple times
Identify the SINGLE bug if any exists.
Respond with ONLY a JSON object:
{"bug_type": "<type>", "bug_location": "<TX_ID>"
Your response:
|
LOST_UPDATE
|
TX005
|
Thread T2 overwrites T1's change
|
LOST_UPDATE
| 91
|
{"bug_type": "LOST_UPDATE", "bug_location": "TX005", "explanation": "Thread T2 overwrites T1's change"}
|
{"bug_type": "LOST_UPDATE", "n_ops": 91}
|
23
|
Analyze this banking transaction log for bugs.
Each operation shows the complete state change.
INITIAL STATE:
{
"account_A": 4000,
"account_B": 4200,
"total": 8200
}
RULES:
1. Total money must remain constant (conservation)
2. No account can go negative
3. All calculations must be mathematically correct
TRANSACTION LOG:
[TX001] Transfer $839: A=4000 → 3161, B=4200 → 5039
[TX002] Transfer $511: A=3161 → 2650, B=5039 → 5550
[TX003] Transfer $825: A=2650 → 1825, B=5550 → 6375
[TX004] Transfer $347: A=1825 → 1478, B=6375 → 6722
[TX005] Transfer $125: B=6722 → 6597, A=1478 → 1603
[TX006] Transfer $858: A=1603 → 745, B=6597 → 7455
[TX007] Payment PAY1006: Transfer $305: A=745 → 440, B=7455 → 7760
[TX008] Transfer $34: A=440 → 406, B=7760 → 7794
[TX009] Transfer $74: A=406 → 332, B=7794 → 7868
[TX010] Transfer $715: B=7868 → 7153, A=332 → 1047
[TX011] Transfer $451: B=7153 → 6702, A=1047 → 1498
[TX012] Transfer $138: A=1498 → 1360, B=6702 → 6840
[TX013] Transfer $798: A=1360 → 562, B=6840 → 7638
[TX014] Transfer $452: A=562 → 110, B=7638 → 8090
[TX015] Transfer $8: B=8090 → 8082, A=110 → 118
[TX016] Transfer $4: A=118 → 114, B=8082 → 8086
[TX017] Transfer $712: B=8086 → 7374, A=114 → 826
[TX018] Transfer $213: B=7374 → 7161, A=826 → 1039
[TX019] Transfer $537: A=1039 → 502, B=7161 → 7698
[TX020] Transfer $246: B=7698 → 7452, A=502 → 748
[TX021] Transfer $612: A=748 → 136, B=7452 → 8064
[TX022] Transfer $7: A=136 → 129, B=8064 → 8071
[TX023] Transfer $430: B=8071 → 7641, A=129 → 559
[TX024] Transfer $100: A=559 → 459, B=7641 → 7741
[TX025] Transfer $318: A=459 → 141, B=7741 → 8059
[TX026] Transfer $477: B=8059 → 7582, A=141 → 618
[TX027] Transfer $56: A=618 → 562, B=7582 → 7638
[TX028] Transfer $409: A=562 → 153, B=7638 → 8047
[TX029] Transfer $33: A=153 → 120, B=8047 → 8080
[TX030] Transfer $3: A=120 → 117, B=8080 → 8083
[TX031] Transfer $11: A=117 → 106, B=8083 → 8094
[TX032] Transfer $4: A=106 → 102, B=8094 → 8098
[TX033] Transfer $46: B=8098 → 8052, A=102 → 148
[TX034] Transfer $36: A=148 → 112, B=8052 → 8088
[TX035] Transfer $2: A=112 → 110, B=8088 → 8090
[TX036] Transfer $74: B=8090 → 8016, A=110 → 184
[TX037] Transfer $77: A=184 → 107, B=8016 → 8093
[TX038] Transfer $205: B=8093 → 7888, A=107 → 312
[TX039] Transfer $799: B=7888 → 7089, A=312 → 1111
[TX040] Transfer $235: A=1111 → 876, B=7089 → 7324
[TX041] Transfer $757: A=876 → 119, B=7324 → 8081
[TX042] Transfer $386: B=8081 → 7695, A=119 → 505
[TX043] Transfer $243: A=505 → 262, B=7695 → 7938
[TX044] Transfer $913: B=7938 → 7025, A=262 → 1175
[TX045] Transfer $223: B=7025 → 6802, A=1175 → 1398
[TX046] Transfer $398: B=6802 → 6404, A=1398 → 1796
[TX047] Transfer $470: B=6404 → 5934, A=1796 → 2266
[TX048] Transfer $1000: A=2266 → 1266, B=5934 → 6934
[TX049] Transfer $345: B=6934 → 6589, A=1266 → 1611
[TX050] Transfer $710: A=1611 → 901, B=6589 → 7299
[TX051] Transfer $141: A=901 → 760, B=7299 → 7440
[TX052] Transfer $471: A=760 → 289, B=7440 → 7911
[TX053] Transfer $780: B=7911 → 7131, A=289 → 1069
[TX054] Transfer $909: B=7131 → 6222, A=1069 → 1978
[TX055] Transfer $810: B=6222 → 5412, A=1978 → 2788
[TX056] Transfer $90: A=2788 → 2698, B=5412 → 5502
[TX057] Transfer $884: B=5502 → 4618, A=2698 → 3582
[TX058] Transfer $859: A=3582 → 2723, B=4618 → 5477
[TX059] Transfer $16: B=5477 → 5461, A=2723 → 2739
[TX060] Transfer $255: B=5461 → 5206, A=2739 → 2994
[TX061] Transfer $595: B=5206 → 4611, A=2994 → 3589
[TX062] Transfer $937: A=3589 → 2652, B=4611 → 5548
[TX063] Transfer $47: A=2652 → 2605, B=5548 → 5595
[TX064] Transfer $753: A=2605 → 1852, B=5595 → 6348
[TX065] Transfer $545: A=1852 → 1307, B=6348 → 6893
[TX066] Payment PAY1006: Transfer $305: A=1307 → 1002, B=6893 → 7198
[TX067] Transfer $831: B=7198 → 6367, A=1002 → 1833
[TX068] Transfer $509: A=1833 → 1324, B=6367 → 6876
[TX069] Transfer $573: A=1324 → 751, B=6876 → 7449
[TX070] Transfer $225: A=751 → 526, B=7449 → 7674
[TX071] Transfer $153: A=526 → 373, B=7674 → 7827
[TX072] Transfer $10: A=373 → 363, B=7827 → 7837
[TX073] Transfer $167: B=7837 → 7670, A=363 → 530
[TX074] Transfer $467: B=7670 → 7203, A=530 → 997
[TX075] Transfer $897: B=7203 → 6306, A=997 → 1894
[TX076] Transfer $810: B=6306 → 5496, A=1894 → 2704
[TX077] Transfer $722: B=5496 → 4774, A=2704 → 3426
[TX078] Transfer $396: A=3426 → 3030, B=4774 → 5170
[TX079] Transfer $305: B=5170 → 4865, A=3030 → 3335
[TX080] Transfer $716: B=4865 → 4149, A=3335 → 4051
[TX081] Transfer $637: A=4051 → 3414, B=4149 → 4786
[TX082] Transfer $529: B=4786 → 4257, A=3414 → 3943
[TX083] Transfer $115: B=4257 → 4142, A=3943 → 4058
POSSIBLE BUG TYPES (choose exactly one):
- CALC_ERROR: Mathematical calculation is incorrect
- NEGATIVE_BAL: Account balance becomes negative
- LOST_UPDATE: Concurrent update causes lost transaction
- DUPLICATE_TXN: Same transaction processed multiple times
Identify the SINGLE bug if any exists.
Respond with ONLY a JSON object:
{"bug_type": "<type>", "bug_location": "<TX_ID>"
Your response:
|
DUPLICATE_TXN
|
TX066
|
Payment PAY1006 processed twice
|
DUPLICATE_TXN
| 83
|
{"bug_type": "DUPLICATE_TXN", "bug_location": "TX066", "explanation": "Payment PAY1006 processed twice"}
|
{"bug_type": "DUPLICATE_TXN", "n_ops": 83}
|
39
|
Analyze this banking transaction log for bugs.
Each operation shows the complete state change.
INITIAL STATE:
{
"account_A": 4000,
"account_B": 4200,
"total": 8200
}
RULES:
1. Total money must remain constant (conservation)
2. No account can go negative
3. All calculations must be mathematically correct
TRANSACTION LOG:
[TX001] Transfer $800: B=4200 → 3400, A=4000 → 4800
[TX002] Transfer $11: B=3400 → 3389, A=4800 → 4811
[TX003] Transfer $736: B=3389 → 2653, A=4811 → 5547
[TX004] Transfer $478: B=2653 → 2175, A=5547 → 6025
[TX005] Transfer $577: B=2175 → 1598, A=6025 → 6602
[TX006] Transfer $292: A=6602 → 6310, B=1598 → 1890
[TX007] Transfer $107: A=6310 → 6203, B=1890 → 1997
[TX008] Transfer $589: B=1997 → 1408, A=6203 → 6792
[TX009] Transfer $327: B=1408 → 1081, A=6792 → 7119
[TX010] Transfer $203: B=1081 → 878, A=7119 → 7322
[TX011] Transfer $512: A=7322 → 6810, B=878 → 1390
[TX012] Transfer $433: A=6810 → 6377, B=1390 → 1823
[TX013] Transfer $465: A=6377 → 5912, B=1823 → 2288
[TX014] Transfer $607: A=5912 → 5305, B=2288 → 2895
[TX015] Transfer $592: B=2895 → 2303, A=5305 → 5897
[TX016] Transfer $20: A=5897 → 5877, B=2303 → 2323
[TX017] Transfer $293: A=5877 → 5584, B=2323 → 2616
[TX018] Transfer $39: A=5584 → 5545, B=2616 → 2655
[TX019] Transfer $662: A=5545 → 4883, B=2655 → 3317
[TX020] Transfer $483: A=4883 → 4400, B=3317 → 3800
[TX021] Transfer $742: A=4400 → 3658, B=3800 → 4542
[TX022] Transfer $326: B=4542 → 4216, A=3658 → 3984
[TX023] Transfer $83: B=4216 → 4133, A=3984 → 4067
[TX024] Transfer $629: B=4133 → 3504, A=4067 → 4696
[TX025] Transfer $307: A=4696 → 4389, B=3504 → 3811
[TX026] Transfer $871: B=3811 → 2940, A=4389 → 5260
[TX027] Transfer $962: A=5260 → 4298, B=2940 → 3902
[TX028] Transfer $231: A=4298 → 4067, B=3902 → 4133
[TX029] Transfer $144: A=4067 → 3923, B=4133 → 4277
[TX030] Transfer $884: A=3923 → 3039, B=4277 → 5161
[TX031] Transfer $176: B=5161 → 4985, A=3039 → 3215
[TX032] Transfer $743: A=3215 → 2472, B=4985 → 5728
[TX033] Transfer $958: B=5728 → 4770, A=2472 → 3430
[TX034] Transfer $906: A=3430 → 2524, B=4770 → 5676
[TX035] Transfer $51: A=2524 → 2473, B=5676 → 5727
[TX036] Transfer $272: B=5727 → 5455, A=2473 → 2745
[TX037] Transfer $278: B=5455 → 5177, A=2745 → 3023
[TX038] Transfer $599: A=3023 → 2424, B=5177 → 5776
[TX039] Transfer $131: B=5776 → 5645, A=2424 → 2555
[TX040] Transfer $773: B=5645 → 4872, A=2555 → 3328
[TX041] Transfer $686: B=4872 → 4186, A=3328 → 4014
[TX042] Transfer $593: A=4014 → 3421, B=4186 → 4779
[TX043] Transfer $289: B=4779 → 4490, A=3421 → 3710
[TX044] Transfer $233: B=4490 → 4257, A=3710 → 3943
[TX045] Transfer $786: A=3943 → 3157, B=4257 → 5043
[TX046] Transfer $363: B=5043 → 4680, A=3157 → 3520
[TX047] Transfer $713: A=3520 → 2807, B=4680 → 5393
[TX048] Transfer $997: A=2807 → 1810, B=5393 → 6390
[TX049] Transfer $219: B=6390 → 6171, A=1810 → 2030
[TX050] Transfer $840: A=2029 → 1189, B=6171 → 7011
[TX051] Transfer $501: B=7011 → 6510, A=1189 → 1690
[TX052] Transfer $215: A=1690 → 1475, B=6510 → 6725
[TX053] Transfer $727: B=6725 → 5998, A=1475 → 2202
[TX054] Transfer $870: B=5998 → 5128, A=2202 → 3072
[TX055] Transfer $226: A=3072 → 2846, B=5128 → 5354
[TX056] Transfer $1000: B=5354 → 4354, A=2846 → 3846
[TX057] Transfer $800: B=4354 → 3554, A=3846 → 4646
[TX058] Transfer $72: B=3554 → 3482, A=4646 → 4718
[TX059] Transfer $170: B=3482 → 3312, A=4718 → 4888
[TX060] Transfer $152: B=3312 → 3160, A=4888 → 5040
[TX061] Transfer $764: B=3160 → 2396, A=5040 → 5804
[TX062] Transfer $18: A=5804 → 5786, B=2396 → 2414
[TX063] Transfer $275: B=2414 → 2139, A=5786 → 6061
[TX064] Transfer $679: A=6061 → 5382, B=2139 → 2818
[TX065] Transfer $273: B=2818 → 2545, A=5382 → 5655
[TX066] Transfer $364: A=5655 → 5291, B=2545 → 2909
[TX067] Transfer $156: B=2909 → 2753, A=5291 → 5447
[TX068] Transfer $522: B=2753 → 2231, A=5447 → 5969
[TX069] Transfer $453: B=2231 → 1778, A=5969 → 6422
[TX070] Transfer $102: B=1778 → 1676, A=6422 → 6524
[TX071] Transfer $751: A=6524 → 5773, B=1676 → 2427
[TX072] Transfer $303: B=2427 → 2124, A=5773 → 6076
[TX073] Transfer $182: A=6076 → 5894, B=2124 → 2306
[TX074] Transfer $533: B=2306 → 1773, A=5894 → 6427
[TX075] Transfer $699: B=1773 → 1074, A=6427 → 7126
[TX076] Transfer $983: A=7126 → 6143, B=1074 → 2057
[TX077] Transfer $119: A=6143 → 6024, B=2057 → 2176
[TX078] Transfer $591: A=6024 → 5433, B=2176 → 2767
[TX079] Transfer $69: B=2767 → 2698, A=5433 → 5502
[TX080] Transfer $233: A=5502 → 5269, B=2698 → 2931
[TX081] Transfer $404: B=2931 → 2527, A=5269 → 5673
[TX082] Transfer $753: A=5673 → 4920, B=2527 → 3280
[TX083] Transfer $212: B=3280 → 3068, A=4920 → 5132
[TX084] Transfer $357: A=5132 → 4775, B=3068 → 3425
[TX085] Transfer $753: B=3425 → 2672, A=4775 → 5528
[TX086] Transfer $191: A=5528 → 5337, B=2672 → 2863
[TX087] Transfer $875: B=2863 → 1988, A=5337 → 6212
[TX088] Transfer $324: A=6212 → 5888, B=1988 → 2312
[TX089] Transfer $193: A=5888 → 5695, B=2312 → 2505
[TX090] Transfer $147: B=2505 → 2358, A=5695 → 5842
[TX091] Transfer $440: A=5842 → 5402, B=2358 → 2798
[TX092] Transfer $183: B=2798 → 2615, A=5402 → 5585
[TX093] Transfer $176: B=2615 → 2439, A=5585 → 5761
[TX094] Transfer $994: A=5761 → 4767, B=2439 → 3433
[TX095] Transfer $502: B=3433 → 2931, A=4767 → 5269
[TX096] Transfer $114: A=5269 → 5155, B=2931 → 3045
[TX097] Transfer $582: A=5155 → 4573, B=3045 → 3627
[TX098] Transfer $539: B=3627 → 3088, A=4573 → 5112
[TX099] Transfer $795: A=5112 → 4317, B=3088 → 3883
[TX100] Transfer $313: A=4317 → 4004, B=3883 → 4196
[TX101] Transfer $504: B=4196 → 3692, A=4004 → 4508
POSSIBLE BUG TYPES (choose exactly one):
- CALC_ERROR: Mathematical calculation is incorrect
- NEGATIVE_BAL: Account balance becomes negative
- LOST_UPDATE: Concurrent update causes lost transaction
- DUPLICATE_TXN: Same transaction processed multiple times
Identify the SINGLE bug if any exists.
Respond with ONLY a JSON object:
{"bug_type": "<type>", "bug_location": "<TX_ID>"
Your response:
|
CALC_ERROR
|
TX049
|
Mathematical calculation is incorrect
|
CALC_ERROR
| 101
|
{"bug_type": "CALC_ERROR", "bug_location": "TX049", "explanation": "Mathematical calculation is incorrect"}
|
{"bug_type": "CALC_ERROR", "n_ops": 101}
|
40
|
Analyze this banking transaction log for bugs.
Each operation shows the complete state change.
INITIAL STATE:
{
"account_A": 4000,
"account_B": 4200,
"total": 8200
}
RULES:
1. Total money must remain constant (conservation)
2. No account can go negative
3. All calculations must be mathematically correct
TRANSACTION LOG:
[TX001] Transfer $261: B=4200 → 3939, A=4000 → 4261
[TX002] Transfer $15: B=3939 → 3924, A=4261 → 4276
[TX003] Transfer $729: B=3924 → 3195, A=4276 → 5005
[TX004] Transfer $117: B=3195 → 3078, A=5005 → 5122
[TX005] Transfer $153: B=3078 → 2925, A=5122 → 5275
[TX006] Transfer $677: B=2925 → 2248, A=5275 → 5952
[TX007] Transfer $511: A=5952 → 5441, B=2248 → 2759
[TX008] Transfer $593: A=5441 → 4848, B=2759 → 3352
[TX009] Transfer $213: B=3352 → 3139, A=4848 → 5061
[TX010] Transfer $944: A=5061 → 4117, B=3139 → 4083
[TX011] Transfer $990: B=4083 → 3093, A=4117 → 5107
[TX012] Transfer $983: B=3093 → 2110, A=5107 → 6090
[TX013] Transfer $934: A=6090 → 5156, B=2110 → 3044
[TX014] Transfer $402: B=3044 → 2642, A=5156 → 5558
[TX015] Transfer $318: B=2642 → 2324, A=5558 → 5876
[TX016] Transfer $595: A=5876 → 5281, B=2324 → 2919
[TX017] Transfer $445: B=2919 → 2474, A=5281 → 5726
[TX018] Transfer $297: B=2474 → 2177, A=5726 → 6023
[TX019] Transfer $512: A=6023 → 5511, B=2177 → 2689
[TX020] Transfer $699: A=5511 → 4812, B=2689 → 3388
[TX021] Transfer $640: A=4812 → 4172, B=3388 → 4028
[TX022] Transfer $500: A=4172 → 3672, B=4028 → 4528
[TX023] Transfer $820: B=4528 → 3708, A=3672 → 4492
[TX024] Transfer $466: B=3708 → 3242, A=4492 → 4958
[TX025] Transfer $291: A=4958 → 4667, B=3242 → 3533
[TX026] Transfer $502: A=4667 → 4165, B=3533 → 4035
[TX027] Transfer $442: B=4035 → 3593, A=4165 → 4607
[TX028] Transfer $53: B=3593 → 3540, A=4607 → 4660
[TX029] Transfer $360: B=3540 → 3180, A=4660 → 5020
[TX030] Transfer $978: B=3180 → 2202, A=5020 → 5998
[TX031] Transfer $148: A=5998 → 5850, B=2202 → 2350
[TX032] Transfer $601: A=5850 → 5249, B=2350 → 2951
[TX033] Transfer $226: A=5249 → 5023, B=2951 → 3177
[TX034] Transfer $957: A=5023 → 4066, B=3177 → 4134
[TX035] Transfer $833: B=4134 → 3301, A=4066 → 4899
[TX036] Transfer $410: B=3301 → 2891, A=4899 → 5309
[TX037] Transfer $944: A=5309 → 4365, B=2891 → 3835
[TX038] Transfer $179: B=3835 → 3656, A=4365 → 4544
[TX039] Transfer $825: B=3656 → 2831, A=4544 → 5369
[TX040] Transfer $258: A=5369 → 5111, B=2831 → 3089
[TX041] Transfer $569: A=5111 → 4542, B=3089 → 3658
[TX042] Transfer $314: A=4542 → 4228, B=3658 → 3972
[TX043] Transfer $582: A=4228 → 3646, B=3972 → 4554
[TX044] Transfer $386: B=4554 → 4168, A=3646 → 4032
[TX045] Transfer $143: B=4168 → 4025, A=4032 → 4175
[TX046] Transfer $517: B=4025 → 3508, A=4175 → 4692
[TX047] Transfer $364: B=3508 → 3144, A=4692 → 5056
[TX048] Transfer $432: B=3144 → 2712, A=5056 → 5488
[TX049] Transfer $30: B=2712 → 2682, A=5488 → 5518
[TX050] Transfer $92: A=5518 → 5426, B=2682 → 2774
[TX051] Transfer $807: A=5426 → 4619, B=2774 → 3581
[TX052] Transfer $132: A=4619 → 4487, B=3581 → 3713
[TX053] Transfer $775: B=3713 → 2938, A=4487 → 5262
[TX054] Transfer $414: B=2938 → 2524, A=5262 → 5676
[TX055] Transfer $828: A=5676 → 4848, B=2524 → 3352
[TX056] Transfer $88: B=3352 → 3264, A=4848 → 4936
[TX057] Transfer $851: A=4936 → 4085, B=3264 → 4115
[TX058] Transfer $610: A=4085 → 3475, B=4115 → 4725
[TX059] Transfer $581: A=3475 → 2894, B=4725 → 5306
[TX060] Transfer $887: B=5306 → 4419, A=2894 → 3781
[TX061] Transfer $760: A=3781 → 3021, B=4419 → 5179
[TX062] Transfer $530: A=3021 → 2491, B=5179 → 5709
[TX063] Transfer $141: A=2491 → 2350, B=5709 → 5850
[TX064] Transfer $310: A=2350 → 2040, B=5850 → 6160
[TX065] Transfer $826: B=6160 → 5334, A=2040 → 2866
[TX066] Transfer $119: B=5334 → 5215, A=2866 → 2985
[TX067] Transfer $158: A=2985 → 2827, B=5215 → 5373
[TX068] Transfer $255: A=2827 → 2572, B=5373 → 5628
[TX069] Transfer $487: A=2572 → 2085, B=5628 → 6115
[TX070] Transfer $402: A=2085 → 1683, B=6115 → 6517
[TX071] Transfer $1693: A=1683 → -10, B=6517 → 8210
[TX072] Transfer $190: B=8210 → 8020, A=-10 → 180
[TX073] Transfer $80: A=180 → 100, B=8020 → 8100
[TX074] Transfer $444: B=8100 → 7656, A=100 → 544
[TX075] Transfer $96: A=544 → 448, B=7656 → 7752
[TX076] Transfer $89: A=448 → 359, B=7752 → 7841
[TX077] Transfer $247: A=359 → 112, B=7841 → 8088
[TX078] Transfer $685: B=8088 → 7403, A=112 → 797
[TX079] Transfer $378: A=797 → 419, B=7403 → 7781
[TX080] Transfer $397: B=7781 → 7384, A=419 → 816
POSSIBLE BUG TYPES (choose exactly one):
- CALC_ERROR: Mathematical calculation is incorrect
- NEGATIVE_BAL: Account balance becomes negative
- LOST_UPDATE: Concurrent update causes lost transaction
- DUPLICATE_TXN: Same transaction processed multiple times
Identify the SINGLE bug if any exists.
Respond with ONLY a JSON object:
{"bug_type": "<type>", "bug_location": "<TX_ID>"
Your response:
|
NEGATIVE_BAL
|
TX071
|
Account balance goes negative
|
NEGATIVE_BAL
| 80
|
{"bug_type": "NEGATIVE_BAL", "bug_location": "TX071", "explanation": "Account balance goes negative"}
|
{"bug_type": "NEGATIVE_BAL", "n_ops": 80}
|
18
|
Analyze this banking transaction log for bugs.
Each operation shows the complete state change.
INITIAL STATE:
{
"account_A": 4000,
"account_B": 4200,
"total": 8200
}
RULES:
1. Total money must remain constant (conservation)
2. No account can go negative
3. All calculations must be mathematically correct
TRANSACTION LOG:
[TX001] Transfer $23: B=4200 → 4177, A=4000 → 4023
[TX002] Transfer $743: B=4177 → 3434, A=4023 → 4766
[TX003] Transfer $922: A=4766 → 3844, B=3434 → 4356
[TX004] Transfer $725: A=3844 → 3119, B=4356 → 5081
[TX005] Transfer $557: B=5081 → 4524, A=3119 → 3676
[TX006] Transfer $582: B=4524 → 3942, A=3676 → 4258
[TX007] Transfer $333: A=4258 → 3925, B=3942 → 4275
[TX008] Transfer $890: B=4275 → 3385, A=3925 → 4815
[TX009] Transfer $545: A=4815 → 4270, B=3385 → 3930
[TX010] Transfer $304: A=4270 → 3966, B=3930 → 4234
[TX011] Transfer $466: B=4234 → 3768, A=3966 → 4432
[TX012] Transfer $753: A=4432 → 3679, B=3768 → 4521
[TX013] Transfer $636: A=3679 → 3043, B=4521 → 5157
[TX014] Transfer $330: B=5157 → 4827, A=3043 → 3373
[TX015] Transfer $196: A=3373 → 3177, B=4827 → 5023
[TX016] Transfer $629: B=5023 → 4394, A=3177 → 3806
[TX017] Transfer $421: B=4394 → 3973, A=3806 → 4227
[TX018] Transfer $100: B=3973 → 3873, A=4227 → 4327
[TX019] Transfer $857: A=4327 → 3470, B=3873 → 4730
[TX020] Transfer $896: A=3470 → 2574, B=4730 → 5626
[TX021] Transfer $111: A=2574 → 2463, B=5626 → 5737
[TX022] Transfer $103: B=5737 → 5634, A=2463 → 2566
[TX023] Transfer $675: A=2566 → 1891, B=5634 → 6309
[TX024] Transfer $52: B=6309 → 6257, A=1891 → 1943
[TX025] Transfer $622: B=6257 → 5635, A=1943 → 2565
[TX026] Transfer $954: A=2565 → 1611, B=5635 → 6589
[TX027] Transfer $952: A=1611 → 659, B=6589 → 7541
[TX028] Transfer $64: A=659 → 595, B=7541 → 7605
[TX029] Transfer $843: B=7605 → 6762, A=595 → 1438
[TX030] Transfer $845: B=6762 → 5917, A=1438 → 2283
[TX031] Transfer $753: B=5917 → 5164, A=2283 → 3036
[TX032] Transfer $81: A=3036 → 2955, B=5164 → 5245
[TX033] Transfer $105: A=2955 → 2850, B=5245 → 5350
[TX034] Transfer $196: A=2850 → 2654, B=5350 → 5546
[TX035] Transfer $585: A=2654 → 2069, B=5546 → 6131
[TX036] Transfer $766: A=2069 → 1303, B=6131 → 6897
[TX037] Transfer $692: A=1303 → 611, B=6897 → 7589
[TX038] Transfer $906: B=7589 → 6683, A=611 → 1517
[TX039] Transfer $813: A=1517 → 704, B=6683 → 7496
[TX040] Transfer $518: A=704 → 186, B=7496 → 8014
[TX041] Transfer $548: B=8014 → 7466, A=186 → 734
[TX042] Transfer $926: B=7466 → 6540, A=734 → 1660
[TX043] Transfer $867: B=6540 → 5673, A=1660 → 2527
[TX044] Transfer $784: B=5673 → 4889, A=2527 → 3311
[TX045] Thread T1: READ B=4889
[TX046] Thread T2: READ B=4889
[TX047] Thread T1: COMMIT B=4889 → 4757
[TX048] Thread T2: COMMIT B=4889 → 4778
[TX049] Transfer $786: A=3311 → 2525, B=4778 → 5564
[TX050] Transfer $986: B=5564 → 4578, A=2525 → 3511
[TX051] Transfer $984: B=4578 → 3594, A=3511 → 4495
[TX052] Transfer $745: B=3594 → 2849, A=4495 → 5240
[TX053] Transfer $612: A=5240 → 4628, B=2849 → 3461
[TX054] Transfer $913: A=4628 → 3715, B=3461 → 4374
[TX055] Transfer $309: B=4374 → 4065, A=3715 → 4024
[TX056] Transfer $878: A=4024 → 3146, B=4065 → 4943
[TX057] Transfer $792: B=4943 → 4151, A=3146 → 3938
[TX058] Transfer $98: B=4151 → 4053, A=3938 → 4036
[TX059] Transfer $366: A=4036 → 3670, B=4053 → 4419
[TX060] Transfer $273: A=3670 → 3397, B=4419 → 4692
[TX061] Transfer $240: B=4692 → 4452, A=3397 → 3637
[TX062] Transfer $96: B=4452 → 4356, A=3637 → 3733
[TX063] Transfer $753: B=4356 → 3603, A=3733 → 4486
[TX064] Transfer $813: A=4486 → 3673, B=3603 → 4416
[TX065] Transfer $501: B=4416 → 3915, A=3673 → 4174
[TX066] Transfer $40: A=4174 → 4134, B=3915 → 3955
[TX067] Transfer $800: B=3955 → 3155, A=4134 → 4934
[TX068] Transfer $358: A=4934 → 4576, B=3155 → 3513
[TX069] Transfer $954: B=3513 → 2559, A=4576 → 5530
[TX070] Transfer $767: A=5530 → 4763, B=2559 → 3326
[TX071] Transfer $57: A=4763 → 4706, B=3326 → 3383
[TX072] Transfer $328: B=3383 → 3055, A=4706 → 5034
[TX073] Transfer $516: A=5034 → 4518, B=3055 → 3571
[TX074] Transfer $53: A=4518 → 4465, B=3571 → 3624
[TX075] Transfer $772: B=3624 → 2852, A=4465 → 5237
[TX076] Transfer $444: A=5237 → 4793, B=2852 → 3296
[TX077] Transfer $153: B=3296 → 3143, A=4793 → 4946
[TX078] Transfer $86: A=4946 → 4860, B=3143 → 3229
[TX079] Transfer $563: B=3229 → 2666, A=4860 → 5423
[TX080] Transfer $89: B=2666 → 2577, A=5423 → 5512
[TX081] Transfer $794: B=2577 → 1783, A=5512 → 6306
[TX082] Transfer $494: A=6306 → 5812, B=1783 → 2277
[TX083] Transfer $406: A=5812 → 5406, B=2277 → 2683
POSSIBLE BUG TYPES (choose exactly one):
- CALC_ERROR: Mathematical calculation is incorrect
- NEGATIVE_BAL: Account balance becomes negative
- LOST_UPDATE: Concurrent update causes lost transaction
- DUPLICATE_TXN: Same transaction processed multiple times
Identify the SINGLE bug if any exists.
Respond with ONLY a JSON object:
{"bug_type": "<type>", "bug_location": "<TX_ID>"
Your response:
|
LOST_UPDATE
|
TX048
|
Thread T2 overwrites T1's change
|
LOST_UPDATE
| 83
|
{"bug_type": "LOST_UPDATE", "bug_location": "TX048", "explanation": "Thread T2 overwrites T1's change"}
|
{"bug_type": "LOST_UPDATE", "n_ops": 83}
|
66
|
Analyze this banking transaction log for bugs.
Each operation shows the complete state change.
INITIAL STATE:
{
"account_A": 4000,
"account_B": 4200,
"total": 8200
}
RULES:
1. Total money must remain constant (conservation)
2. No account can go negative
3. All calculations must be mathematically correct
TRANSACTION LOG:
[TX001] Transfer $682: B=4200 → 3518, A=4000 → 4682
[TX002] Transfer $46: A=4682 → 4636, B=3518 → 3564
[TX003] Transfer $732: B=3564 → 2832, A=4636 → 5368
[TX004] Transfer $928: A=5368 → 4440, B=2832 → 3760
[TX005] Transfer $117: A=4440 → 4323, B=3760 → 3877
[TX006] Transfer $47: B=3877 → 3830, A=4323 → 4370
[TX007] Transfer $183: B=3830 → 3647, A=4370 → 4553
[TX008] Transfer $692: B=3647 → 2955, A=4553 → 5245
[TX009] Transfer $742: A=5245 → 4503, B=2955 → 3697
[TX010] Transfer $111: B=3697 → 3586, A=4503 → 4614
[TX011] Transfer $188: B=3586 → 3398, A=4614 → 4802
[TX012] Transfer $908: B=3398 → 2490, A=4802 → 5710
[TX013] Transfer $857: B=2490 → 1633, A=5710 → 6567
[TX014] Transfer $561: B=1633 → 1072, A=6567 → 7128
[TX015] Transfer $960: A=7128 → 6168, B=1072 → 2032
[TX016] Transfer $274: B=2032 → 1758, A=6168 → 6442
[TX017] Transfer $157: B=1758 → 1601, A=6442 → 6599
[TX018] Transfer $13: A=6599 → 6586, B=1601 → 1614
[TX019] Transfer $106: A=6586 → 6480, B=1614 → 1720
[TX020] Transfer $165: B=1720 → 1555, A=6480 → 6645
[TX021] Transfer $847: B=1555 → 708, A=6645 → 7492
[TX022] Transfer $557: B=708 → 151, A=7492 → 8049
[TX023] Transfer $516: A=8049 → 7533, B=151 → 667
[TX024] Transfer $549: A=7533 → 6984, B=667 → 1216
[TX025] Transfer $630: B=1216 → 586, A=6984 → 7614
[TX026] Transfer $142: A=7614 → 7472, B=586 → 728
[TX027] Transfer $493: B=728 → 235, A=7472 → 7965
[TX028] Transfer $618: A=7965 → 7347, B=235 → 853
[TX029] Transfer $24: A=7347 → 7323, B=853 → 877
[TX030] Transfer $309: A=7323 → 7014, B=877 → 1186
[TX031] Transfer $851: A=7014 → 6163, B=1186 → 2037
[TX032] Transfer $368: A=6163 → 5795, B=2037 → 2405
[TX033] Transfer $733: A=5795 → 5062, B=2405 → 3138
[TX034] Transfer $240: B=3138 → 2898, A=5062 → 5302
[TX035] Transfer $738: A=5302 → 4564, B=2898 → 3636
[TX036] Transfer $351: B=3636 → 3285, A=4564 → 4915
[TX037] Transfer $46: A=4915 → 4869, B=3285 → 3331
[TX038] Transfer $571: B=3331 → 2760, A=4869 → 5440
[TX039] Transfer $342: A=5440 → 5098, B=2760 → 3102
[TX040] Transfer $370: A=5098 → 4728, B=3102 → 3472
[TX041] Transfer $509: B=3472 → 2963, A=4728 → 5237
[TX042] Transfer $129: A=5237 → 5108, B=2963 → 3092
[TX043] Transfer $327: A=5108 → 4781, B=3092 → 3419
[TX044] Transfer $715: A=4781 → 4066, B=3419 → 4134
[TX045] Transfer $30: B=4134 → 4104, A=4066 → 4096
[TX046] Transfer $867: B=4104 → 3237, A=4096 → 4963
[TX047] Transfer $775: A=4963 → 4188, B=3237 → 4012
[TX048] Transfer $792: B=4012 → 3220, A=4188 → 4980
[TX049] Transfer $610: A=4980 → 4370, B=3220 → 3830
[TX050] Transfer $889: A=4370 → 3481, B=3830 → 4719
[TX051] Transfer $855: B=4719 → 3864, A=3481 → 4336
[TX052] Transfer $280: A=4336 → 4056, B=3864 → 4144
[TX053] Transfer $279: A=4056 → 3777, B=4144 → 4423
[TX054] Transfer $808: B=4423 → 3615, A=3777 → 4585
[TX055] Transfer $639: A=4585 → 3946, B=3615 → 4254
[TX056] Transfer $643: A=3946 → 3303, B=4254 → 4897
[TX057] Transfer $561: B=4897 → 4336, A=3303 → 3864
[TX058] Transfer $717: B=4336 → 3619, A=3864 → 4581
[TX059] Transfer $321: B=3619 → 3298, A=4581 → 4902
[TX060] Transfer $707: B=3298 → 2591, A=4902 → 5609
[TX061] Transfer $350: A=5609 → 5259, B=2591 → 2941
[TX062] Transfer $824: B=2941 → 2117, A=5259 → 6083
[TX063] Transfer $129: A=6083 → 5954, B=2117 → 2246
[TX064] Transfer $61: A=5954 → 5893, B=2246 → 2307
[TX065] Transfer $254: B=2307 → 2053, A=5893 → 6147
[TX066] Transfer $361: B=2053 → 1692, A=6147 → 6508
[TX067] Transfer $487: A=6508 → 6021, B=1692 → 2179
[TX068] Transfer $701: A=6021 → 5320, B=2179 → 2880
[TX069] Transfer $854: A=5320 → 4466, B=2880 → 3734
[TX070] Transfer $433: B=3734 → 3301, A=4466 → 4899
[TX071] Transfer $422: B=3301 → 2879, A=4899 → 5321
[TX072] Transfer $529: A=5321 → 4792, B=2879 → 3408
[TX073] Transfer $383: B=3408 → 3025, A=4792 → 5175
[TX074] Transfer $499: A=5175 → 4676, B=3025 → 3524
[TX075] Transfer $27: A=4676 → 4649, B=3524 → 3551
[TX076] Transfer $307: B=3551 → 3244, A=4649 → 4956
[TX077] Transfer $50: B=3244 → 3194, A=4956 → 5006
[TX078] Transfer $386: B=3194 → 2808, A=5006 → 5392
[TX079] Transfer $443: B=2808 → 2365, A=5392 → 5835
[TX080] Transfer $53: B=2365 → 2312, A=5835 → 5888
[TX081] Transfer $270: B=2312 → 2042, A=5888 → 6158
[TX082] Transfer $841: A=6158 → 5317, B=2042 → 2883
[TX083] Transfer $435: B=2883 → 2448, A=5317 → 5752
[TX084] Transfer $776: B=2448 → 1672, A=5752 → 6528
[TX085] Transfer $552: B=1672 → 1120, A=6528 → 7080
[TX086] Transfer $803: A=7080 → 6277, B=1120 → 1923
[TX087] Transfer $989: B=1923 → 934, A=6277 → 7266
[TX088] Transfer $802: A=7266 → 6464, B=934 → 1736
[TX089] Transfer $135: A=6464 → 6329, B=1736 → 1871
[TX090] Transfer $266: A=6329 → 6063, B=1871 → 2137
[TX091] Transfer $804: B=2137 → 1333, A=6063 → 6867
[TX092] Transfer $790: A=6867 → 6077, B=1333 → 2123
[TX093] Transfer $719: B=2123 → 1404, A=6077 → 6796
[TX094] Transfer $113: B=1404 → 1291, A=6796 → 6907
[TX095] Transfer $236: B=1291 → 1055, A=6909 → 7145
[TX096] Transfer $713: A=7145 → 6432, B=1055 → 1768
[TX097] Transfer $878: B=1768 → 890, A=6432 → 7310
[TX098] Transfer $181: A=7310 → 7129, B=890 → 1071
[TX099] Transfer $187: A=7129 → 6942, B=1071 → 1258
[TX100] Transfer $989: B=1258 → 269, A=6942 → 7931
[TX101] Transfer $81: B=269 → 188, A=7931 → 8012
[TX102] Transfer $42: B=188 → 146, A=8012 → 8054
[TX103] Transfer $30: A=8054 → 8024, B=146 → 176
[TX104] Transfer $183: A=8024 → 7841, B=176 → 359
[TX105] Transfer $49: B=359 → 310, A=7841 → 7890
[TX106] Transfer $138: B=310 → 172, A=7890 → 8028
[TX107] Transfer $2: B=172 → 170, A=8028 → 8030
[TX108] Transfer $487: A=8030 → 7543, B=170 → 657
[TX109] Transfer $508: B=657 → 149, A=7543 → 8051
[TX110] Transfer $897: A=8051 → 7154, B=149 → 1046
[TX111] Transfer $593: A=7154 → 6561, B=1046 → 1639
[TX112] Transfer $955: B=1639 → 684, A=6561 → 7516
[TX113] Transfer $458: A=7516 → 7058, B=684 → 1142
[TX114] Transfer $813: A=7058 → 6245, B=1142 → 1955
POSSIBLE BUG TYPES (choose exactly one):
- CALC_ERROR: Mathematical calculation is incorrect
- NEGATIVE_BAL: Account balance becomes negative
- LOST_UPDATE: Concurrent update causes lost transaction
- DUPLICATE_TXN: Same transaction processed multiple times
Identify the SINGLE bug if any exists.
Respond with ONLY a JSON object:
{"bug_type": "<type>", "bug_location": "<TX_ID>"
Your response:
|
CALC_ERROR
|
TX094
|
Mathematical calculation is incorrect
|
CALC_ERROR
| 114
|
{"bug_type": "CALC_ERROR", "bug_location": "TX094", "explanation": "Mathematical calculation is incorrect"}
|
{"bug_type": "CALC_ERROR", "n_ops": 114}
|
61
|
Analyze this banking transaction log for bugs.
Each operation shows the complete state change.
INITIAL STATE:
{
"account_A": 4000,
"account_B": 4200,
"total": 8200
}
RULES:
1. Total money must remain constant (conservation)
2. No account can go negative
3. All calculations must be mathematically correct
TRANSACTION LOG:
[TX001] Transfer $839: B=4200 → 3361, A=4000 → 4839
[TX002] Transfer $448: B=3361 → 2913, A=4839 → 5287
[TX003] Transfer $643: A=5287 → 4644, B=2913 → 3556
[TX004] Transfer $783: B=3556 → 2773, A=4644 → 5427
[TX005] Transfer $539: A=5427 → 4888, B=2773 → 3312
[TX006] Transfer $769: B=3312 → 2543, A=4888 → 5657
[TX007] Transfer $249: A=5657 → 5408, B=2543 → 2792
[TX008] Transfer $814: B=2792 → 1978, A=5408 → 6222
[TX009] Transfer $352: B=1978 → 1626, A=6222 → 6574
[TX010] Transfer $490: B=1626 → 1136, A=6574 → 7064
[TX011] Transfer $49: A=7064 → 7015, B=1136 → 1185
[TX012] Transfer $662: A=7015 → 6353, B=1185 → 1847
[TX013] Transfer $56: B=1847 → 1791, A=6353 → 6409
[TX014] Transfer $464: A=6409 → 5945, B=1791 → 2255
[TX015] Transfer $521: A=5945 → 5424, B=2255 → 2776
[TX016] Transfer $824: B=2776 → 1952, A=5424 → 6248
[TX017] Payment PAY1012: Transfer $589: B=1952 → 1363, A=6248 → 6837
[TX018] Transfer $733: A=6837 → 6104, B=1363 → 2096
[TX019] Transfer $598: B=2096 → 1498, A=6104 → 6702
[TX020] Transfer $776: A=6702 → 5926, B=1498 → 2274
[TX021] Transfer $892: B=2274 → 1382, A=5926 → 6818
[TX022] Transfer $93: B=1382 → 1289, A=6818 → 6911
[TX023] Transfer $550: B=1289 → 739, A=6911 → 7461
[TX024] Transfer $584: B=739 → 155, A=7461 → 8045
[TX025] Transfer $340: A=8045 → 7705, B=155 → 495
[TX026] Transfer $23: A=7705 → 7682, B=495 → 518
[TX027] Transfer $91: B=518 → 427, A=7682 → 7773
[TX028] Transfer $191: A=7773 → 7582, B=427 → 618
[TX029] Transfer $801: A=7582 → 6781, B=618 → 1419
[TX030] Transfer $415: A=6781 → 6366, B=1419 → 1834
[TX031] Transfer $639: A=6366 → 5727, B=1834 → 2473
[TX032] Transfer $160: A=5727 → 5567, B=2473 → 2633
[TX033] Transfer $470: B=2633 → 2163, A=5567 → 6037
[TX034] Transfer $659: B=2163 → 1504, A=6037 → 6696
[TX035] Transfer $769: B=1504 → 735, A=6696 → 7465
[TX036] Transfer $577: A=7465 → 6888, B=735 → 1312
[TX037] Transfer $335: A=6888 → 6553, B=1312 → 1647
[TX038] Transfer $922: B=1647 → 725, A=6553 → 7475
[TX039] Transfer $858: A=7475 → 6617, B=725 → 1583
[TX040] Transfer $920: B=1583 → 663, A=6617 → 7537
[TX041] Transfer $122: B=663 → 541, A=7537 → 7659
[TX042] Transfer $351: A=7659 → 7308, B=541 → 892
[TX043] Transfer $417: A=7308 → 6891, B=892 → 1309
[TX044] Transfer $446: B=1309 → 863, A=6891 → 7337
[TX045] Transfer $565: B=863 → 298, A=7337 → 7902
[TX046] Transfer $90: B=298 → 208, A=7902 → 7992
[TX047] Transfer $108: B=208 → 100, A=7992 → 8100
[TX048] Transfer $577: A=8100 → 7523, B=100 → 677
[TX049] Transfer $102: B=677 → 575, A=7523 → 7625
[TX050] Transfer $828: A=7625 → 6797, B=575 → 1403
[TX051] Transfer $947: B=1403 → 456, A=6797 → 7744
[TX052] Transfer $865: A=7744 → 6879, B=456 → 1321
[TX053] Transfer $410: A=6879 → 6469, B=1321 → 1731
[TX054] Transfer $603: A=6469 → 5866, B=1731 → 2334
[TX055] Transfer $643: B=2334 → 1691, A=5866 → 6509
[TX056] Transfer $854: A=6509 → 5655, B=1691 → 2545
[TX057] Transfer $772: A=5655 → 4883, B=2545 → 3317
[TX058] Transfer $8: A=4883 → 4875, B=3317 → 3325
[TX059] Transfer $931: B=3325 → 2394, A=4875 → 5806
[TX060] Transfer $58: B=2394 → 2336, A=5806 → 5864
[TX061] Payment PAY1012: Transfer $589: B=2336 → 1747, A=5864 → 6453
[TX062] Transfer $517: A=6453 → 5936, B=1747 → 2264
[TX063] Transfer $85: A=5936 → 5851, B=2264 → 2349
[TX064] Transfer $845: A=5851 → 5006, B=2349 → 3194
[TX065] Transfer $970: A=5006 → 4036, B=3194 → 4164
[TX066] Transfer $542: A=4036 → 3494, B=4164 → 4706
[TX067] Transfer $84: A=3494 → 3410, B=4706 → 4790
[TX068] Transfer $880: B=4790 → 3910, A=3410 → 4290
[TX069] Transfer $466: B=3910 → 3444, A=4290 → 4756
[TX070] Transfer $885: B=3444 → 2559, A=4756 → 5641
[TX071] Transfer $659: A=5641 → 4982, B=2559 → 3218
[TX072] Transfer $53: B=3218 → 3165, A=4982 → 5035
[TX073] Transfer $654: B=3165 → 2511, A=5035 → 5689
[TX074] Transfer $19: B=2511 → 2492, A=5689 → 5708
[TX075] Transfer $455: B=2492 → 2037, A=5708 → 6163
[TX076] Transfer $168: B=2037 → 1869, A=6163 → 6331
[TX077] Transfer $908: A=6331 → 5423, B=1869 → 2777
[TX078] Transfer $783: A=5423 → 4640, B=2777 → 3560
[TX079] Transfer $612: B=3560 → 2948, A=4640 → 5252
[TX080] Transfer $21: A=5252 → 5231, B=2948 → 2969
[TX081] Transfer $744: A=5231 → 4487, B=2969 → 3713
[TX082] Transfer $947: B=3713 → 2766, A=4487 → 5434
[TX083] Transfer $580: A=5434 → 4854, B=2766 → 3346
POSSIBLE BUG TYPES (choose exactly one):
- CALC_ERROR: Mathematical calculation is incorrect
- NEGATIVE_BAL: Account balance becomes negative
- LOST_UPDATE: Concurrent update causes lost transaction
- DUPLICATE_TXN: Same transaction processed multiple times
Identify the SINGLE bug if any exists.
Respond with ONLY a JSON object:
{"bug_type": "<type>", "bug_location": "<TX_ID>"
Your response:
|
DUPLICATE_TXN
|
TX061
|
Payment PAY1012 processed twice
|
DUPLICATE_TXN
| 83
|
{"bug_type": "DUPLICATE_TXN", "bug_location": "TX061", "explanation": "Payment PAY1012 processed twice"}
|
{"bug_type": "DUPLICATE_TXN", "n_ops": 83}
|
60
|
Analyze this banking transaction log for bugs.
Each operation shows the complete state change.
INITIAL STATE:
{
"account_A": 4000,
"account_B": 4200,
"total": 8200
}
RULES:
1. Total money must remain constant (conservation)
2. No account can go negative
3. All calculations must be mathematically correct
TRANSACTION LOG:
[TX001] Transfer $388: A=4000 → 3612, B=4200 → 4588
[TX002] Transfer $424: A=3612 → 3188, B=4588 → 5012
[TX003] Transfer $525: A=3188 → 2663, B=5012 → 5537
[TX004] Transfer $380: A=2663 → 2283, B=5537 → 5917
[TX005] Transfer $319: A=2283 → 1964, B=5917 → 6236
[TX006] Transfer $749: A=1964 → 1215, B=6236 → 6985
[TX007] Transfer $642: A=1215 → 573, B=6985 → 7627
[TX008] Transfer $418: B=7627 → 7209, A=573 → 991
[TX009] Transfer $422: A=991 → 569, B=7209 → 7631
[TX010] Transfer $807: B=7631 → 6824, A=569 → 1376
[TX011] Transfer $130: A=1376 → 1246, B=6824 → 6954
[TX012] Transfer $276: A=1246 → 970, B=6954 → 7230
[TX013] Transfer $403: A=970 → 567, B=7230 → 7633
[TX014] Transfer $913: B=7633 → 6720, A=567 → 1480
[TX015] Transfer $642: A=1480 → 838, B=6720 → 7362
[TX016] Transfer $562: B=7362 → 6800, A=838 → 1400
[TX017] Transfer $903: B=6800 → 5897, A=1400 → 2303
[TX018] Transfer $389: A=2303 → 1914, B=5897 → 6286
[TX019] Transfer $411: A=1914 → 1503, B=6286 → 6697
[TX020] Transfer $160: B=6697 → 6537, A=1503 → 1663
[TX021] Transfer $715: A=1663 → 948, B=6537 → 7252
[TX022] Transfer $745: B=7252 → 6507, A=948 → 1693
[TX023] Transfer $419: A=1693 → 1274, B=6507 → 6926
[TX024] Transfer $23: B=6926 → 6903, A=1274 → 1297
[TX025] Transfer $776: A=1297 → 521, B=6903 → 7679
[TX026] Transfer $371: A=521 → 150, B=7679 → 8050
[TX027] Transfer $108: B=8050 → 7942, A=150 → 258
[TX028] Transfer $86: B=7942 → 7856, A=258 → 344
[TX029] Transfer $843: B=7856 → 7013, A=344 → 1187
[TX030] Transfer $970: B=7013 → 6043, A=1187 → 2157
[TX031] Transfer $365: B=6043 → 5678, A=2157 → 2522
[TX032] Transfer $889: B=5678 → 4789, A=2522 → 3411
[TX033] Transfer $414: A=3411 → 2997, B=4789 → 5203
[TX034] Transfer $350: A=2997 → 2647, B=5203 → 5553
[TX035] Transfer $198: A=2647 → 2449, B=5553 → 5751
[TX036] Thread T1: READ A=2449
[TX037] Thread T2: READ A=2449
[TX038] Thread T1: COMMIT A=2449 → 2378
[TX039] Thread T2: COMMIT A=2449 → 2279
[TX040] Transfer $423: B=5751 → 5328, A=2279 → 2702
[TX041] Transfer $527: B=5328 → 4801, A=2702 → 3229
[TX042] Transfer $750: A=3229 → 2479, B=4801 → 5551
[TX043] Transfer $249: A=2479 → 2230, B=5551 → 5800
[TX044] Transfer $341: A=2230 → 1889, B=5800 → 6141
[TX045] Transfer $626: A=1889 → 1263, B=6141 → 6767
[TX046] Transfer $40: A=1263 → 1223, B=6767 → 6807
[TX047] Transfer $875: B=6807 → 5932, A=1223 → 2098
[TX048] Transfer $211: B=5932 → 5721, A=2098 → 2309
[TX049] Transfer $995: A=2309 → 1314, B=5721 → 6716
[TX050] Transfer $850: B=6716 → 5866, A=1314 → 2164
[TX051] Transfer $906: B=5866 → 4960, A=2164 → 3070
[TX052] Transfer $747: A=3070 → 2323, B=4960 → 5707
[TX053] Transfer $827: A=2323 → 1496, B=5707 → 6534
[TX054] Transfer $98: A=1496 → 1398, B=6534 → 6632
[TX055] Transfer $740: B=6632 → 5892, A=1398 → 2138
[TX056] Transfer $623: A=2138 → 1515, B=5892 → 6515
[TX057] Transfer $609: A=1515 → 906, B=6515 → 7124
[TX058] Transfer $506: A=906 → 400, B=7124 → 7630
[TX059] Transfer $209: A=400 → 191, B=7630 → 7839
[TX060] Transfer $42: B=7839 → 7797, A=191 → 233
[TX061] Transfer $742: B=7797 → 7055, A=233 → 975
[TX062] Transfer $770: A=975 → 205, B=7055 → 7825
[TX063] Transfer $400: B=7825 → 7425, A=205 → 605
[TX064] Transfer $493: A=605 → 112, B=7425 → 7918
[TX065] Transfer $12: B=7918 → 7906, A=112 → 124
[TX066] Transfer $2: A=124 → 122, B=7906 → 7908
[TX067] Transfer $12: A=122 → 110, B=7908 → 7920
[TX068] Transfer $564: B=7920 → 7356, A=110 → 674
[TX069] Transfer $252: A=674 → 422, B=7356 → 7608
[TX070] Transfer $485: B=7608 → 7123, A=422 → 907
[TX071] Transfer $748: B=7123 → 6375, A=907 → 1655
[TX072] Transfer $985: B=6375 → 5390, A=1655 → 2640
[TX073] Transfer $905: B=5390 → 4485, A=2640 → 3545
[TX074] Transfer $378: A=3545 → 3167, B=4485 → 4863
[TX075] Transfer $909: B=4863 → 3954, A=3167 → 4076
[TX076] Transfer $320: A=4076 → 3756, B=3954 → 4274
[TX077] Transfer $893: A=3756 → 2863, B=4274 → 5167
[TX078] Transfer $554: B=5167 → 4613, A=2863 → 3417
[TX079] Transfer $238: B=4613 → 4375, A=3417 → 3655
[TX080] Transfer $353: B=4375 → 4022, A=3655 → 4008
[TX081] Transfer $776: A=4008 → 3232, B=4022 → 4798
[TX082] Transfer $176: B=4798 → 4622, A=3232 → 3408
[TX083] Transfer $623: A=3408 → 2785, B=4622 → 5245
[TX084] Transfer $247: A=2785 → 2538, B=5245 → 5492
[TX085] Transfer $345: B=5492 → 5147, A=2538 → 2883
[TX086] Transfer $80: B=5147 → 5067, A=2883 → 2963
[TX087] Transfer $958: A=2963 → 2005, B=5067 → 6025
[TX088] Transfer $135: A=2005 → 1870, B=6025 → 6160
[TX089] Transfer $851: B=6160 → 5309, A=1870 → 2721
[TX090] Transfer $798: B=5309 → 4511, A=2721 → 3519
[TX091] Transfer $506: B=4511 → 4005, A=3519 → 4025
[TX092] Transfer $447: B=4005 → 3558, A=4025 → 4472
[TX093] Transfer $121: A=4472 → 4351, B=3558 → 3679
[TX094] Transfer $801: A=4351 → 3550, B=3679 → 4480
[TX095] Transfer $968: A=3550 → 2582, B=4480 → 5448
[TX096] Transfer $534: A=2582 → 2048, B=5448 → 5982
[TX097] Transfer $401: A=2048 → 1647, B=5982 → 6383
[TX098] Transfer $839: B=6383 → 5544, A=1647 → 2486
[TX099] Transfer $159: A=2486 → 2327, B=5544 → 5703
[TX100] Transfer $330: B=5703 → 5373, A=2327 → 2657
[TX101] Transfer $977: A=2657 → 1680, B=5373 → 6350
POSSIBLE BUG TYPES (choose exactly one):
- CALC_ERROR: Mathematical calculation is incorrect
- NEGATIVE_BAL: Account balance becomes negative
- LOST_UPDATE: Concurrent update causes lost transaction
- DUPLICATE_TXN: Same transaction processed multiple times
Identify the SINGLE bug if any exists.
Respond with ONLY a JSON object:
{"bug_type": "<type>", "bug_location": "<TX_ID>"
Your response:
|
LOST_UPDATE
|
TX039
|
Thread T2 overwrites T1's change
|
LOST_UPDATE
| 101
|
{"bug_type": "LOST_UPDATE", "bug_location": "TX039", "explanation": "Thread T2 overwrites T1's change"}
|
{"bug_type": "LOST_UPDATE", "n_ops": 101}
|
7
|
Analyze this banking transaction log for bugs.
Each operation shows the complete state change.
INITIAL STATE:
{
"account_A": 4000,
"account_B": 4200,
"total": 8200
}
RULES:
1. Total money must remain constant (conservation)
2. No account can go negative
3. All calculations must be mathematically correct
TRANSACTION LOG:
[TX001] Transfer $210: B=4200 → 3990, A=4000 → 4210
[TX002] Transfer $322: B=3990 → 3668, A=4210 → 4532
[TX003] Transfer $1000: B=3668 → 2668, A=4532 → 5532
[TX004] Transfer $780: B=2668 → 1888, A=5532 → 6312
[TX005] Transfer $328: B=1888 → 1560, A=6312 → 6640
[TX006] Transfer $127: A=6640 → 6513, B=1560 → 1687
[TX007] Transfer $255: B=1687 → 1432, A=6513 → 6768
[TX008] Transfer $53: A=6768 → 6715, B=1432 → 1485
[TX009] Transfer $886: B=1485 → 599, A=6715 → 7601
[TX010] Transfer $494: B=599 → 105, A=7601 → 8095
[TX011] Transfer $958: A=8095 → 7137, B=105 → 1063
[TX012] Transfer $783: B=1063 → 280, A=7137 → 7920
[TX013] Transfer $529: A=7920 → 7391, B=280 → 809
[TX014] Transfer $317: B=809 → 492, A=7391 → 7708
[TX015] Transfer $48: B=492 → 444, A=7708 → 7756
[TX016] Transfer $125: B=444 → 319, A=7756 → 7881
[TX017] Transfer $51: A=7881 → 7830, B=319 → 370
[TX018] Transfer $508: A=7830 → 7322, B=370 → 878
[TX019] Transfer $551: B=878 → 327, A=7322 → 7873
[TX020] Transfer $443: A=7873 → 7430, B=327 → 770
[TX021] Transfer $746: A=7430 → 6684, B=770 → 1516
[TX022] Transfer $376: B=1516 → 1140, A=6684 → 7060
[TX023] Transfer $54: A=7060 → 7006, B=1140 → 1194
[TX024] Transfer $568: A=7006 → 6438, B=1194 → 1762
[TX025] Transfer $397: B=1762 → 1365, A=6438 → 6835
[TX026] Transfer $847: B=1365 → 518, A=6835 → 7682
[TX027] Transfer $1000: A=7682 → 6682, B=518 → 1518
[TX028] Transfer $384: A=6682 → 6298, B=1518 → 1902
[TX029] Transfer $775: B=1902 → 1127, A=6298 → 7073
[TX030] Transfer $618: A=7073 → 6455, B=1127 → 1745
[TX031] Transfer $48: B=1745 → 1697, A=6455 → 6503
[TX032] Transfer $732: A=6503 → 5771, B=1697 → 2429
[TX033] Transfer $533: B=2429 → 1896, A=5771 → 6304
[TX034] Transfer $622: B=1896 → 1274, A=6304 → 6926
[TX035] Transfer $955: A=6926 → 5971, B=1274 → 2229
[TX036] Transfer $404: B=2229 → 1825, A=5971 → 6375
[TX037] Transfer $521: B=1825 → 1304, A=6375 → 6896
[TX038] Transfer $488: B=1304 → 816, A=6896 → 7384
[TX039] Transfer $341: A=7384 → 7043, B=816 → 1157
[TX040] Transfer $599: A=7043 → 6444, B=1157 → 1756
[TX041] Transfer $613: B=1756 → 1143, A=6444 → 7057
[TX042] Transfer $992: B=1143 → 151, A=7057 → 8049
[TX043] Transfer $599: A=8049 → 7450, B=151 → 750
[TX044] Transfer $538: B=750 → 212, A=7450 → 7988
[TX045] Transfer $107: B=212 → 105, A=7988 → 8095
[TX046] Transfer $588: A=8095 → 7507, B=105 → 693
[TX047] Transfer $21: A=7507 → 7486, B=693 → 714
[TX048] Transfer $430: B=714 → 284, A=7486 → 7916
[TX049] Transfer $709: A=7916 → 7207, B=284 → 993
[TX050] Transfer $515: A=7207 → 6692, B=993 → 1508
[TX051] Transfer $724: B=1508 → 784, A=6692 → 7416
[TX052] Transfer $576: A=7416 → 6840, B=784 → 1360
[TX053] Transfer $540: B=1360 → 820, A=6840 → 7380
[TX054] Transfer $179: B=820 → 641, A=7380 → 7559
[TX055] Transfer $364: B=641 → 277, A=7559 → 7925
[TX056] Transfer $65: B=277 → 212, A=7923 → 7988
[TX057] Transfer $30: B=212 → 182, A=7988 → 8018
[TX058] Transfer $28: B=182 → 154, A=8018 → 8046
[TX059] Transfer $32: B=154 → 122, A=8046 → 8078
[TX060] Transfer $11: B=122 → 111, A=8078 → 8089
[TX061] Transfer $919: A=8089 → 7170, B=111 → 1030
[TX062] Transfer $793: B=1030 → 237, A=7170 → 7963
[TX063] Transfer $45: A=7963 → 7918, B=237 → 282
[TX064] Transfer $90: B=282 → 192, A=7918 → 8008
[TX065] Transfer $63: B=192 → 129, A=8008 → 8071
[TX066] Transfer $849: A=8071 → 7222, B=129 → 978
[TX067] Transfer $142: B=978 → 836, A=7222 → 7364
[TX068] Transfer $250: A=7364 → 7114, B=836 → 1086
[TX069] Transfer $655: A=7114 → 6459, B=1086 → 1741
[TX070] Transfer $104: A=6459 → 6355, B=1741 → 1845
[TX071] Transfer $736: B=1845 → 1109, A=6355 → 7091
[TX072] Transfer $699: B=1109 → 410, A=7091 → 7790
[TX073] Transfer $989: A=7790 → 6801, B=410 → 1399
[TX074] Transfer $670: A=6801 → 6131, B=1399 → 2069
[TX075] Transfer $668: B=2069 → 1401, A=6131 → 6799
[TX076] Transfer $330: A=6799 → 6469, B=1401 → 1731
[TX077] Transfer $931: B=1731 → 800, A=6469 → 7400
[TX078] Transfer $549: A=7400 → 6851, B=800 → 1349
[TX079] Transfer $429: A=6851 → 6422, B=1349 → 1778
[TX080] Transfer $858: A=6422 → 5564, B=1778 → 2636
[TX081] Transfer $192: B=2636 → 2444, A=5564 → 5756
[TX082] Transfer $11: B=2444 → 2433, A=5756 → 5767
[TX083] Transfer $952: B=2433 → 1481, A=5767 → 6719
[TX084] Transfer $467: B=1481 → 1014, A=6719 → 7186
[TX085] Transfer $873: B=1014 → 141, A=7186 → 8059
[TX086] Transfer $14: B=141 → 127, A=8059 → 8073
[TX087] Transfer $168: A=8073 → 7905, B=127 → 295
[TX088] Transfer $185: B=295 → 110, A=7905 → 8090
[TX089] Transfer $756: A=8090 → 7334, B=110 → 866
[TX090] Transfer $583: B=866 → 283, A=7334 → 7917
[TX091] Transfer $627: A=7917 → 7290, B=283 → 910
[TX092] Transfer $529: B=910 → 381, A=7290 → 7819
POSSIBLE BUG TYPES (choose exactly one):
- CALC_ERROR: Mathematical calculation is incorrect
- NEGATIVE_BAL: Account balance becomes negative
- LOST_UPDATE: Concurrent update causes lost transaction
- DUPLICATE_TXN: Same transaction processed multiple times
Identify the SINGLE bug if any exists.
Respond with ONLY a JSON object:
{"bug_type": "<type>", "bug_location": "<TX_ID>"
Your response:
|
CALC_ERROR
|
TX055
|
Mathematical calculation is incorrect
|
CALC_ERROR
| 92
|
{"bug_type": "CALC_ERROR", "bug_location": "TX055", "explanation": "Mathematical calculation is incorrect"}
|
{"bug_type": "CALC_ERROR", "n_ops": 92}
|
34
|
Analyze this banking transaction log for bugs.
Each operation shows the complete state change.
INITIAL STATE:
{
"account_A": 4000,
"account_B": 4200,
"total": 8200
}
RULES:
1. Total money must remain constant (conservation)
2. No account can go negative
3. All calculations must be mathematically correct
TRANSACTION LOG:
[TX001] Transfer $151: A=4000 → 3849, B=4200 → 4351
[TX002] Transfer $318: A=3849 → 3531, B=4351 → 4669
[TX003] Transfer $870: A=3531 → 2661, B=4669 → 5539
[TX004] Transfer $508: B=5539 → 5031, A=2661 → 3169
[TX005] Transfer $62: B=5031 → 4969, A=3169 → 3231
[TX006] Transfer $849: B=4969 → 4120, A=3231 → 4080
[TX007] Transfer $719: A=4080 → 3361, B=4120 → 4839
[TX008] Transfer $879: A=3361 → 2482, B=4839 → 5718
[TX009] Transfer $308: B=5718 → 5410, A=2482 → 2790
[TX010] Transfer $563: A=2790 → 2227, B=5410 → 5973
[TX011] Transfer $434: B=5973 → 5539, A=2227 → 2661
[TX012] Transfer $777: B=5539 → 4762, A=2661 → 3438
[TX013] Transfer $75: B=4762 → 4687, A=3438 → 3513
[TX014] Transfer $715: B=4687 → 3972, A=3513 → 4228
[TX015] Transfer $101: A=4228 → 4127, B=3972 → 4073
[TX016] Transfer $772: A=4127 → 3355, B=4073 → 4845
[TX017] Transfer $470: A=3355 → 2885, B=4845 → 5315
[TX018] Transfer $454: A=2885 → 2431, B=5315 → 5769
[TX019] Transfer $920: B=5769 → 4849, A=2431 → 3351
[TX020] Transfer $225: A=3351 → 3126, B=4849 → 5074
[TX021] Transfer $372: A=3126 → 2754, B=5074 → 5446
[TX022] Transfer $387: A=2754 → 2367, B=5446 → 5833
[TX023] Transfer $950: B=5833 → 4883, A=2367 → 3317
[TX024] Transfer $366: A=3317 → 2951, B=4883 → 5249
[TX025] Transfer $969: B=5249 → 4280, A=2951 → 3920
[TX026] Transfer $529: A=3920 → 3391, B=4280 → 4809
[TX027] Transfer $995: B=4809 → 3814, A=3391 → 4386
[TX028] Transfer $252: A=4386 → 4134, B=3814 → 4066
[TX029] Transfer $248: A=4134 → 3886, B=4066 → 4314
[TX030] Transfer $311: B=4314 → 4003, A=3886 → 4197
[TX031] Transfer $796: A=4197 → 3401, B=4003 → 4799
[TX032] Transfer $887: A=3401 → 2514, B=4799 → 5686
[TX033] Transfer $649: B=5686 → 5037, A=2514 → 3163
[TX034] Transfer $13: B=5037 → 5024, A=3163 → 3176
[TX035] Transfer $86: A=3176 → 3090, B=5024 → 5110
[TX036] Transfer $658: A=3090 → 2432, B=5110 → 5768
[TX037] Transfer $602: A=2432 → 1830, B=5768 → 6370
[TX038] Transfer $712: B=6370 → 5658, A=1830 → 2542
[TX039] Transfer $395: A=2542 → 2147, B=5658 → 6053
[TX040] Transfer $307: B=6053 → 5746, A=2147 → 2454
[TX041] Transfer $335: A=2454 → 2119, B=5746 → 6081
[TX042] Transfer $417: A=2119 → 1702, B=6081 → 6498
[TX043] Transfer $571: A=1702 → 1131, B=6498 → 7069
[TX044] Transfer $533: B=7069 → 6536, A=1131 → 1664
[TX045] Transfer $990: A=1664 → 674, B=6536 → 7526
[TX046] Transfer $186: A=674 → 488, B=7526 → 7712
[TX047] Transfer $162: A=488 → 326, B=7712 → 7874
[TX048] Transfer $34: A=326 → 292, B=7874 → 7908
[TX049] Transfer $24: A=292 → 268, B=7908 → 7932
[TX050] Transfer $88: B=7932 → 7844, A=268 → 356
[TX051] Transfer $95: A=356 → 261, B=7844 → 7939
[TX052] Transfer $2: A=261 → 259, B=7939 → 7941
[TX053] Transfer $13: A=259 → 246, B=7941 → 7954
[TX054] Transfer $145: B=7954 → 7809, A=246 → 391
[TX055] Transfer $537: B=7809 → 7272, A=391 → 928
[TX056] Transfer $706: B=7272 → 6566, A=928 → 1634
[TX057] Transfer $244: A=1634 → 1390, B=6566 → 6810
[TX058] Transfer $147: A=1390 → 1243, B=6810 → 6957
[TX059] Transfer $982: B=6957 → 5975, A=1243 → 2225
[TX060] Transfer $2244: A=2225 → -19, B=5975 → 8219
[TX061] Transfer $133: B=8219 → 8086, A=-19 → 114
[TX062] Transfer $565: B=8086 → 7521, A=114 → 679
[TX063] Transfer $392: B=7521 → 7129, A=679 → 1071
[TX064] Transfer $469: A=1071 → 602, B=7129 → 7598
[TX065] Transfer $348: A=602 → 254, B=7598 → 7946
[TX066] Transfer $550: B=7946 → 7396, A=254 → 804
[TX067] Transfer $646: A=804 → 158, B=7396 → 8042
[TX068] Transfer $733: B=8042 → 7309, A=158 → 891
[TX069] Transfer $431: B=7309 → 6878, A=891 → 1322
[TX070] Transfer $808: A=1322 → 514, B=6878 → 7686
[TX071] Transfer $28: B=7686 → 7658, A=514 → 542
[TX072] Transfer $140: A=542 → 402, B=7658 → 7798
[TX073] Transfer $282: A=402 → 120, B=7798 → 8080
[TX074] Transfer $339: B=8080 → 7741, A=120 → 459
[TX075] Transfer $172: A=459 → 287, B=7741 → 7913
[TX076] Transfer $891: B=7913 → 7022, A=287 → 1178
[TX077] Transfer $12: A=1178 → 1166, B=7022 → 7034
[TX078] Transfer $994: A=1166 → 172, B=7034 → 8028
[TX079] Transfer $15: A=172 → 157, B=8028 → 8043
[TX080] Transfer $35: A=157 → 122, B=8043 → 8078
[TX081] Transfer $99: B=8078 → 7979, A=122 → 221
[TX082] Transfer $566: B=7979 → 7413, A=221 → 787
[TX083] Transfer $920: B=7413 → 6493, A=787 → 1707
[TX084] Transfer $327: A=1707 → 1380, B=6493 → 6820
[TX085] Transfer $355: B=6820 → 6465, A=1380 → 1735
[TX086] Transfer $608: B=6465 → 5857, A=1735 → 2343
[TX087] Transfer $11: A=2343 → 2332, B=5857 → 5868
[TX088] Transfer $148: A=2332 → 2184, B=5868 → 6016
[TX089] Transfer $56: B=6016 → 5960, A=2184 → 2240
[TX090] Transfer $696: B=5960 → 5264, A=2240 → 2936
[TX091] Transfer $189: B=5264 → 5075, A=2936 → 3125
POSSIBLE BUG TYPES (choose exactly one):
- CALC_ERROR: Mathematical calculation is incorrect
- NEGATIVE_BAL: Account balance becomes negative
- LOST_UPDATE: Concurrent update causes lost transaction
- DUPLICATE_TXN: Same transaction processed multiple times
Identify the SINGLE bug if any exists.
Respond with ONLY a JSON object:
{"bug_type": "<type>", "bug_location": "<TX_ID>"
Your response:
|
NEGATIVE_BAL
|
TX060
|
Account balance goes negative
|
NEGATIVE_BAL
| 91
|
{"bug_type": "NEGATIVE_BAL", "bug_location": "TX060", "explanation": "Account balance goes negative"}
|
{"bug_type": "NEGATIVE_BAL", "n_ops": 91}
|
99
|
Analyze this banking transaction log for bugs.
Each operation shows the complete state change.
INITIAL STATE:
{
"account_A": 4000,
"account_B": 4200,
"total": 8200
}
RULES:
1. Total money must remain constant (conservation)
2. No account can go negative
3. All calculations must be mathematically correct
TRANSACTION LOG:
[TX001] Transfer $389: B=4200 → 3811, A=4000 → 4389
[TX002] Transfer $622: B=3811 → 3189, A=4389 → 5011
[TX003] Transfer $737: A=5011 → 4274, B=3189 → 3926
[TX004] Transfer $606: B=3926 → 3320, A=4274 → 4880
[TX005] Transfer $645: A=4880 → 4235, B=3320 → 3965
[TX006] Transfer $918: B=3965 → 3047, A=4235 → 5153
[TX007] Transfer $664: A=5153 → 4489, B=3047 → 3711
[TX008] Transfer $448: B=3711 → 3263, A=4489 → 4937
[TX009] Transfer $939: B=3263 → 2324, A=4937 → 5876
[TX010] Transfer $704: A=5876 → 5172, B=2324 → 3028
[TX011] Transfer $497: A=5172 → 4675, B=3028 → 3525
[TX012] Transfer $330: A=4675 → 4345, B=3525 → 3855
[TX013] Transfer $152: A=4345 → 4193, B=3855 → 4007
[TX014] Transfer $621: A=4193 → 3572, B=4007 → 4628
[TX015] Transfer $926: A=3572 → 2646, B=4628 → 5554
[TX016] Transfer $933: B=5554 → 4621, A=2646 → 3579
[TX017] Transfer $879: B=4621 → 3742, A=3579 → 4458
[TX018] Transfer $864: A=4458 → 3594, B=3742 → 4606
[TX019] Transfer $703: B=4606 → 3903, A=3594 → 4297
[TX020] Transfer $750: A=4297 → 3547, B=3903 → 4653
[TX021] Transfer $841: B=4653 → 3812, A=3547 → 4388
[TX022] Transfer $102: A=4388 → 4286, B=3812 → 3914
[TX023] Transfer $582: A=4286 → 3704, B=3914 → 4496
[TX024] Transfer $455: A=3704 → 3249, B=4496 → 4951
[TX025] Transfer $447: A=3249 → 2802, B=4951 → 5398
[TX026] Transfer $793: B=5398 → 4605, A=2802 → 3595
[TX027] Transfer $142: A=3595 → 3453, B=4605 → 4747
[TX028] Transfer $3: B=4747 → 4744, A=3453 → 3456
[TX029] Transfer $356: B=4744 → 4388, A=3456 → 3812
[TX030] Transfer $886: A=3812 → 2926, B=4388 → 5274
[TX031] Transfer $262: A=2926 → 2664, B=5274 → 5536
[TX032] Transfer $54: B=5536 → 5482, A=2664 → 2718
[TX033] Transfer $8: A=2718 → 2710, B=5482 → 5490
[TX034] Transfer $762: A=2710 → 1948, B=5490 → 6252
[TX035] Transfer $570: A=1948 → 1378, B=6252 → 6822
[TX036] Transfer $764: A=1378 → 614, B=6822 → 7586
[TX037] Transfer $903: B=7586 → 6683, A=614 → 1517
[TX038] Transfer $610: A=1517 → 907, B=6683 → 7293
[TX039] Transfer $465: B=7293 → 6828, A=907 → 1372
[TX040] Transfer $245: B=6828 → 6583, A=1372 → 1617
[TX041] Transfer $10: A=1617 → 1607, B=6583 → 6593
[TX042] Transfer $419: A=1607 → 1188, B=6593 → 7012
[TX043] Transfer $306: B=7012 → 6706, A=1188 → 1494
[TX044] Transfer $247: A=1494 → 1247, B=6706 → 6953
[TX045] Transfer $47: B=6953 → 6906, A=1247 → 1294
[TX046] Transfer $852: A=1294 → 442, B=6906 → 7758
[TX047] Transfer $90: A=442 → 352, B=7758 → 7848
[TX048] Transfer $225: A=352 → 127, B=7848 → 8075
[TX049] Transfer $9: A=127 → 118, B=8073 → 8082
[TX050] Transfer $63: B=8082 → 8019, A=118 → 181
[TX051] Transfer $22: A=181 → 159, B=8019 → 8041
[TX052] Transfer $8: A=159 → 151, B=8041 → 8049
[TX053] Transfer $25: A=151 → 126, B=8049 → 8074
[TX054] Transfer $3: A=126 → 123, B=8074 → 8077
[TX055] Transfer $23: A=123 → 100, B=8077 → 8100
[TX056] Transfer $743: B=8100 → 7357, A=100 → 843
[TX057] Transfer $427: B=7357 → 6930, A=843 → 1270
[TX058] Transfer $552: A=1270 → 718, B=6930 → 7482
[TX059] Transfer $253: A=718 → 465, B=7482 → 7735
[TX060] Transfer $479: B=7735 → 7256, A=465 → 944
[TX061] Transfer $440: B=7256 → 6816, A=944 → 1384
[TX062] Transfer $49: B=6816 → 6767, A=1384 → 1433
[TX063] Transfer $364: A=1433 → 1069, B=6767 → 7131
[TX064] Transfer $265: A=1069 → 804, B=7131 → 7396
[TX065] Transfer $487: A=804 → 317, B=7396 → 7883
[TX066] Transfer $31: A=317 → 286, B=7883 → 7914
[TX067] Transfer $277: B=7914 → 7637, A=286 → 563
[TX068] Transfer $815: B=7637 → 6822, A=563 → 1378
[TX069] Transfer $186: B=6822 → 6636, A=1378 → 1564
[TX070] Transfer $8: A=1564 → 1556, B=6636 → 6644
[TX071] Transfer $785: B=6644 → 5859, A=1556 → 2341
[TX072] Transfer $639: A=2341 → 1702, B=5859 → 6498
[TX073] Transfer $372: B=6498 → 6126, A=1702 → 2074
[TX074] Transfer $432: B=6126 → 5694, A=2074 → 2506
[TX075] Transfer $633: B=5694 → 5061, A=2506 → 3139
[TX076] Transfer $348: B=5061 → 4713, A=3139 → 3487
[TX077] Transfer $616: B=4713 → 4097, A=3487 → 4103
[TX078] Transfer $440: A=4103 → 3663, B=4097 → 4537
POSSIBLE BUG TYPES (choose exactly one):
- CALC_ERROR: Mathematical calculation is incorrect
- NEGATIVE_BAL: Account balance becomes negative
- LOST_UPDATE: Concurrent update causes lost transaction
- DUPLICATE_TXN: Same transaction processed multiple times
Identify the SINGLE bug if any exists.
Respond with ONLY a JSON object:
{"bug_type": "<type>", "bug_location": "<TX_ID>"
Your response:
|
CALC_ERROR
|
TX048
|
Mathematical calculation is incorrect
|
CALC_ERROR
| 78
|
{"bug_type": "CALC_ERROR", "bug_location": "TX048", "explanation": "Mathematical calculation is incorrect"}
|
{"bug_type": "CALC_ERROR", "n_ops": 78}
|
46
|
Analyze this banking transaction log for bugs.
Each operation shows the complete state change.
INITIAL STATE:
{
"account_A": 4000,
"account_B": 4200,
"total": 8200
}
RULES:
1. Total money must remain constant (conservation)
2. No account can go negative
3. All calculations must be mathematically correct
TRANSACTION LOG:
[TX001] Transfer $876: A=4000 → 3124, B=4200 → 5076
[TX002] Transfer $547: B=5076 → 4529, A=3124 → 3671
[TX003] Transfer $263: A=3671 → 3408, B=4529 → 4792
[TX004] Transfer $678: B=4792 → 4114, A=3408 → 4086
[TX005] Transfer $576: A=4086 → 3510, B=4114 → 4690
[TX006] Transfer $214: B=4690 → 4476, A=3510 → 3724
[TX007] Transfer $300: B=4476 → 4176, A=3724 → 4024
[TX008] Transfer $692: B=4176 → 3484, A=4024 → 4716
[TX009] Transfer $161: B=3484 → 3323, A=4716 → 4877
[TX010] Transfer $580: A=4877 → 4297, B=3323 → 3903
[TX011] Transfer $785: B=3903 → 3118, A=4297 → 5082
[TX012] Transfer $571: A=5082 → 4511, B=3118 → 3689
[TX013] Transfer $386: B=3689 → 3303, A=4511 → 4897
[TX014] Transfer $623: A=4897 → 4274, B=3303 → 3926
[TX015] Transfer $407: A=4274 → 3867, B=3926 → 4333
[TX016] Transfer $115: A=3867 → 3752, B=4333 → 4448
[TX017] Transfer $887: B=4448 → 3561, A=3752 → 4639
[TX018] Transfer $565: A=4639 → 4074, B=3561 → 4126
[TX019] Transfer $771: B=4126 → 3355, A=4074 → 4845
[TX020] Transfer $924: A=4845 → 3921, B=3355 → 4279
[TX021] Transfer $790: B=4279 → 3489, A=3921 → 4711
[TX022] Transfer $682: B=3489 → 2807, A=4711 → 5393
[TX023] Transfer $232: B=2807 → 2575, A=5393 → 5625
[TX024] Transfer $776: B=2575 → 1799, A=5625 → 6401
[TX025] Transfer $847: B=1799 → 952, A=6401 → 7248
[TX026] Transfer $183: B=952 → 769, A=7248 → 7431
[TX027] Transfer $5: B=769 → 764, A=7431 → 7436
[TX028] Transfer $178: B=764 → 586, A=7436 → 7614
[TX029] Transfer $596: A=7614 → 7018, B=586 → 1182
[TX030] Transfer $422: B=1182 → 760, A=7018 → 7440
[TX031] Transfer $635: A=7440 → 6805, B=760 → 1395
[TX032] Transfer $626: A=6805 → 6179, B=1395 → 2021
[TX033] Transfer $970: A=6179 → 5209, B=2021 → 2991
[TX034] Transfer $626: A=5209 → 4583, B=2991 → 3617
[TX035] Transfer $584: A=4583 → 3999, B=3617 → 4201
[TX036] Transfer $976: B=4201 → 3225, A=3999 → 4975
[TX037] Transfer $762: B=3225 → 2463, A=4975 → 5737
[TX038] Transfer $872: B=2463 → 1591, A=5737 → 6609
[TX039] Transfer $379: A=6609 → 6230, B=1591 → 1970
[TX040] Transfer $485: A=6230 → 5745, B=1970 → 2455
[TX041] Transfer $137: A=5745 → 5608, B=2455 → 2592
[TX042] Transfer $917: B=2592 → 1675, A=5608 → 6525
[TX043] Transfer $593: A=6525 → 5932, B=1675 → 2268
[TX044] Transfer $252: B=2268 → 2016, A=5932 → 6184
[TX045] Transfer $817: B=2016 → 1199, A=6184 → 7001
[TX046] Transfer $514: A=7001 → 6487, B=1199 → 1713
[TX047] Transfer $895: A=6487 → 5592, B=1713 → 2608
[TX048] Transfer $475: A=5592 → 5117, B=2608 → 3083
[TX049] Transfer $768: A=5117 → 4349, B=3083 → 3851
[TX050] Transfer $889: A=4349 → 3460, B=3851 → 4740
[TX051] Transfer $74: B=4740 → 4666, A=3460 → 3534
[TX052] Transfer $906: B=4666 → 3760, A=3534 → 4440
[TX053] Transfer $451: A=4440 → 3989, B=3760 → 4211
[TX054] Transfer $301: B=4211 → 3910, A=3989 → 4290
[TX055] Transfer $374: B=3910 → 3536, A=4290 → 4664
[TX056] Transfer $440: B=3536 → 3096, A=4664 → 5104
[TX057] Transfer $151: A=5104 → 4953, B=3096 → 3247
[TX058] Transfer $3253: B=3247 → -6, A=4953 → 8206
[TX059] Balance check: B=-6
[TX060] Balance check: B=-6
[TX061] Transfer $217: A=8206 → 7989, B=-6 → 211
[TX062] Transfer $44: B=211 → 167, A=7989 → 8033
[TX063] Transfer $922: A=8033 → 7111, B=167 → 1089
[TX064] Transfer $777: B=1089 → 312, A=7111 → 7888
[TX065] Transfer $77: B=312 → 235, A=7888 → 7965
[TX066] Transfer $117: B=235 → 118, A=7965 → 8082
[TX067] Transfer $3: B=118 → 115, A=8082 → 8085
[TX068] Transfer $536: A=8085 → 7549, B=115 → 651
[TX069] Transfer $228: B=651 → 423, A=7549 → 7777
[TX070] Transfer $151: B=423 → 272, A=7777 → 7928
[TX071] Transfer $147: B=272 → 125, A=7928 → 8075
[TX072] Transfer $24: B=125 → 101, A=8075 → 8099
[TX073] Balance check: B=101
[TX074] Transfer $152: A=8099 → 7947, B=101 → 253
[TX075] Transfer $67: B=253 → 186, A=7947 → 8014
[TX076] Transfer $873: A=8014 → 7141, B=186 → 1059
[TX077] Transfer $153: A=7141 → 6988, B=1059 → 1212
[TX078] Transfer $374: A=6988 → 6614, B=1212 → 1586
[TX079] Transfer $635: B=1586 → 951, A=6614 → 7249
[TX080] Transfer $661: A=7249 → 6588, B=951 → 1612
[TX081] Transfer $537: A=6588 → 6051, B=1612 → 2149
[TX082] Transfer $888: B=2149 → 1261, A=6051 → 6939
[TX083] Transfer $893: B=1261 → 368, A=6939 → 7832
[TX084] Transfer $249: B=368 → 119, A=7832 → 8081
[TX085] Transfer $4: B=119 → 115, A=8081 → 8085
[TX086] Transfer $6: B=115 → 109, A=8085 → 8091
[TX087] Transfer $155: A=8091 → 7936, B=109 → 264
[TX088] Transfer $52: B=264 → 212, A=7936 → 7988
[TX089] Transfer $60: B=212 → 152, A=7988 → 8048
[TX090] Transfer $761: A=8048 → 7287, B=152 → 913
[TX091] Transfer $682: A=7287 → 6605, B=913 → 1595
[TX092] Transfer $643: A=6605 → 5962, B=1595 → 2238
[TX093] Transfer $521: A=5962 → 5441, B=2238 → 2759
[TX094] Transfer $568: A=5441 → 4873, B=2759 → 3327
[TX095] Transfer $459: A=4873 → 4414, B=3327 → 3786
[TX096] Transfer $264: A=4414 → 4150, B=3786 → 4050
[TX097] Transfer $235: A=4150 → 3915, B=4050 → 4285
[TX098] Transfer $43: B=4285 → 4242, A=3915 → 3958
[TX099] Transfer $95: B=4242 → 4147, A=3958 → 4053
[TX100] Transfer $929: A=4053 → 3124, B=4147 → 5076
POSSIBLE BUG TYPES (choose exactly one):
- CALC_ERROR: Mathematical calculation is incorrect
- NEGATIVE_BAL: Account balance becomes negative
- LOST_UPDATE: Concurrent update causes lost transaction
- DUPLICATE_TXN: Same transaction processed multiple times
Identify the SINGLE bug if any exists.
Respond with ONLY a JSON object:
{"bug_type": "<type>", "bug_location": "<TX_ID>"
Your response:
|
NEGATIVE_BAL
|
TX058
|
Account balance goes negative
|
NEGATIVE_BAL
| 100
|
{"bug_type": "NEGATIVE_BAL", "bug_location": "TX058", "explanation": "Account balance goes negative"}
|
{"bug_type": "NEGATIVE_BAL", "n_ops": 100}
|
2
|
Analyze this banking transaction log for bugs.
Each operation shows the complete state change.
INITIAL STATE:
{
"account_A": 4000,
"account_B": 4200,
"total": 8200
}
RULES:
1. Total money must remain constant (conservation)
2. No account can go negative
3. All calculations must be mathematically correct
TRANSACTION LOG:
[TX001] Transfer $822: B=4200 → 3378, A=4000 → 4822
[TX002] Transfer $974: B=3378 → 2404, A=4822 → 5796
[TX003] Transfer $852: B=2404 → 1552, A=5796 → 6648
[TX004] Transfer $763: B=1552 → 789, A=6648 → 7411
[TX005] Transfer $267: B=789 → 522, A=7411 → 7678
[TX006] Transfer $786: A=7678 → 6892, B=522 → 1308
[TX007] Transfer $283: B=1308 → 1025, A=6892 → 7175
[TX008] Transfer $732: B=1025 → 293, A=7175 → 7907
[TX009] Transfer $71: B=293 → 222, A=7907 → 7978
[TX010] Transfer $116: B=222 → 106, A=7978 → 8094
[TX011] Transfer $156: A=8094 → 7938, B=106 → 262
[TX012] Transfer $712: A=7938 → 7226, B=262 → 974
[TX013] Transfer $67: A=7226 → 7159, B=974 → 1041
[TX014] Transfer $340: B=1041 → 701, A=7159 → 7499
[TX015] Transfer $65: B=701 → 636, A=7499 → 7564
[TX016] Transfer $400: A=7564 → 7164, B=636 → 1036
[TX017] Transfer $490: A=7164 → 6674, B=1036 → 1527
[TX018] Transfer $773: B=1526 → 753, A=6674 → 7447
[TX019] Transfer $553: B=753 → 200, A=7447 → 8000
[TX020] Transfer $226: A=8000 → 7774, B=200 → 426
[TX021] Transfer $250: B=426 → 176, A=7774 → 8024
[TX022] Transfer $346: A=8024 → 7678, B=176 → 522
[TX023] Transfer $241: B=522 → 281, A=7678 → 7919
[TX024] Transfer $930: A=7919 → 6989, B=281 → 1211
[TX025] Transfer $87: B=1211 → 1124, A=6989 → 7076
[TX026] Transfer $889: B=1124 → 235, A=7076 → 7965
[TX027] Transfer $14: B=235 → 221, A=7965 → 7979
[TX028] Transfer $43: B=221 → 178, A=7979 → 8022
[TX029] Transfer $336: A=8022 → 7686, B=178 → 514
[TX030] Transfer $144: B=514 → 370, A=7686 → 7830
[TX031] Transfer $43: B=370 → 327, A=7830 → 7873
[TX032] Transfer $193: B=327 → 134, A=7873 → 8066
[TX033] Transfer $231: A=8066 → 7835, B=134 → 365
[TX034] Transfer $774: A=7835 → 7061, B=365 → 1139
[TX035] Transfer $206: A=7061 → 6855, B=1139 → 1345
[TX036] Transfer $246: A=6855 → 6609, B=1345 → 1591
[TX037] Transfer $687: A=6609 → 5922, B=1591 → 2278
[TX038] Transfer $478: A=5922 → 5444, B=2278 → 2756
[TX039] Transfer $173: B=2756 → 2583, A=5444 → 5617
[TX040] Transfer $989: A=5617 → 4628, B=2583 → 3572
[TX041] Transfer $594: B=3572 → 2978, A=4628 → 5222
[TX042] Transfer $591: A=5222 → 4631, B=2978 → 3569
[TX043] Transfer $966: B=3569 → 2603, A=4631 → 5597
[TX044] Transfer $608: A=5597 → 4989, B=2603 → 3211
[TX045] Transfer $715: A=4989 → 4274, B=3211 → 3926
[TX046] Transfer $817: B=3926 → 3109, A=4274 → 5091
[TX047] Transfer $547: A=5091 → 4544, B=3109 → 3656
[TX048] Transfer $72: B=3656 → 3584, A=4544 → 4616
[TX049] Transfer $871: B=3584 → 2713, A=4616 → 5487
[TX050] Transfer $110: B=2713 → 2603, A=5487 → 5597
[TX051] Transfer $652: B=2603 → 1951, A=5597 → 6249
[TX052] Transfer $447: B=1951 → 1504, A=6249 → 6696
[TX053] Transfer $632: A=6696 → 6064, B=1504 → 2136
[TX054] Transfer $448: B=2136 → 1688, A=6064 → 6512
[TX055] Transfer $874: B=1688 → 814, A=6512 → 7386
[TX056] Transfer $287: A=7386 → 7099, B=814 → 1101
[TX057] Transfer $770: B=1101 → 331, A=7099 → 7869
[TX058] Transfer $88: B=331 → 243, A=7869 → 7957
[TX059] Transfer $873: A=7957 → 7084, B=243 → 1116
[TX060] Transfer $501: B=1116 → 615, A=7084 → 7585
[TX061] Transfer $818: A=7585 → 6767, B=615 → 1433
[TX062] Transfer $288: B=1433 → 1145, A=6767 → 7055
[TX063] Transfer $531: B=1145 → 614, A=7055 → 7586
[TX064] Transfer $249: A=7586 → 7337, B=614 → 863
[TX065] Transfer $570: B=863 → 293, A=7337 → 7907
[TX066] Transfer $663: A=7907 → 7244, B=293 → 956
[TX067] Transfer $813: B=956 → 143, A=7244 → 8057
[TX068] Transfer $303: A=8057 → 7754, B=143 → 446
[TX069] Transfer $710: A=7754 → 7044, B=446 → 1156
[TX070] Transfer $681: A=7044 → 6363, B=1156 → 1837
[TX071] Transfer $568: B=1837 → 1269, A=6363 → 6931
[TX072] Transfer $765: B=1269 → 504, A=6931 → 7696
[TX073] Transfer $361: B=504 → 143, A=7696 → 8057
[TX074] Transfer $21: B=143 → 122, A=8057 → 8078
[TX075] Transfer $5: B=122 → 117, A=8078 → 8083
[TX076] Transfer $124: A=8083 → 7959, B=117 → 241
[TX077] Transfer $223: A=7959 → 7736, B=241 → 464
[TX078] Transfer $303: B=464 → 161, A=7736 → 8039
[TX079] Transfer $55: B=161 → 106, A=8039 → 8094
[TX080] Transfer $234: A=8094 → 7860, B=106 → 340
[TX081] Transfer $79: B=340 → 261, A=7860 → 7939
[TX082] Transfer $282: A=7939 → 7657, B=261 → 543
[TX083] Transfer $568: A=7657 → 7089, B=543 → 1111
[TX084] Transfer $655: B=1111 → 456, A=7089 → 7744
[TX085] Transfer $8: B=456 → 448, A=7744 → 7752
[TX086] Transfer $247: B=448 → 201, A=7752 → 7999
[TX087] Transfer $25: B=201 → 176, A=7999 → 8024
[TX088] Transfer $965: A=8024 → 7059, B=176 → 1141
[TX089] Transfer $843: B=1141 → 298, A=7059 → 7902
[TX090] Transfer $505: A=7902 → 7397, B=298 → 803
[TX091] Transfer $157: A=7397 → 7240, B=803 → 960
[TX092] Transfer $89: A=7240 → 7151, B=960 → 1049
[TX093] Transfer $573: A=7151 → 6578, B=1049 → 1622
[TX094] Transfer $796: B=1622 → 826, A=6578 → 7374
[TX095] Transfer $455: B=826 → 371, A=7374 → 7829
[TX096] Transfer $158: B=371 → 213, A=7829 → 7987
[TX097] Transfer $972: A=7987 → 7015, B=213 → 1185
[TX098] Transfer $272: A=7015 → 6743, B=1185 → 1457
[TX099] Transfer $247: A=6743 → 6496, B=1457 → 1704
[TX100] Transfer $162: A=6496 → 6334, B=1704 → 1866
[TX101] Transfer $463: A=6334 → 5871, B=1866 → 2329
[TX102] Transfer $35: B=2329 → 2294, A=5871 → 5906
[TX103] Transfer $725: A=5906 → 5181, B=2294 → 3019
[TX104] Transfer $74: B=3019 → 2945, A=5181 → 5255
[TX105] Transfer $808: A=5255 → 4447, B=2945 → 3753
[TX106] Transfer $119: A=4447 → 4328, B=3753 → 3872
[TX107] Transfer $932: A=4328 → 3396, B=3872 → 4804
POSSIBLE BUG TYPES (choose exactly one):
- CALC_ERROR: Mathematical calculation is incorrect
- NEGATIVE_BAL: Account balance becomes negative
- LOST_UPDATE: Concurrent update causes lost transaction
- DUPLICATE_TXN: Same transaction processed multiple times
Identify the SINGLE bug if any exists.
Respond with ONLY a JSON object:
{"bug_type": "<type>", "bug_location": "<TX_ID>"
Your response:
|
CALC_ERROR
|
TX017
|
Mathematical calculation is incorrect
|
CALC_ERROR
| 107
|
{"bug_type": "CALC_ERROR", "bug_location": "TX017", "explanation": "Mathematical calculation is incorrect"}
|
{"bug_type": "CALC_ERROR", "n_ops": 107}
|
51
|
Analyze this banking transaction log for bugs.
Each operation shows the complete state change.
INITIAL STATE:
{
"account_A": 4000,
"account_B": 4200,
"total": 8200
}
RULES:
1. Total money must remain constant (conservation)
2. No account can go negative
3. All calculations must be mathematically correct
TRANSACTION LOG:
[TX001] Transfer $894: B=4200 → 3306, A=4000 → 4894
[TX002] Transfer $865: B=3306 → 2441, A=4894 → 5759
[TX003] Transfer $572: A=5759 → 5187, B=2441 → 3013
[TX004] Transfer $562: A=5187 → 4625, B=3013 → 3575
[TX005] Transfer $116: B=3575 → 3459, A=4625 → 4741
[TX006] Transfer $532: A=4741 → 4209, B=3459 → 3991
[TX007] Transfer $743: A=4209 → 3466, B=3991 → 4734
[TX008] Transfer $41: B=4734 → 4693, A=3466 → 3507
[TX009] Transfer $702: A=3507 → 2805, B=4693 → 5395
[TX010] Transfer $392: A=2805 → 2413, B=5395 → 5787
[TX011] Transfer $835: A=2413 → 1578, B=5787 → 6622
[TX012] Transfer $879: B=6622 → 5743, A=1578 → 2457
[TX013] Transfer $579: A=2457 → 1878, B=5743 → 6322
[TX014] Transfer $666: A=1878 → 1212, B=6322 → 6988
[TX015] Transfer $291: B=6988 → 6697, A=1212 → 1503
[TX016] Transfer $934: B=6697 → 5763, A=1503 → 2437
[TX017] Transfer $629: A=2437 → 1808, B=5763 → 6392
[TX018] Transfer $653: B=6392 → 5739, A=1808 → 2461
[TX019] Transfer $943: B=5739 → 4796, A=2461 → 3404
[TX020] Transfer $551: A=3404 → 2853, B=4796 → 5347
[TX021] Transfer $149: B=5347 → 5198, A=2853 → 3002
[TX022] Transfer $988: B=5198 → 4210, A=3002 → 3990
[TX023] Transfer $905: B=4210 → 3305, A=3990 → 4895
[TX024] Transfer $759: A=4895 → 4136, B=3305 → 4064
[TX025] Transfer $826: A=4136 → 3310, B=4064 → 4890
[TX026] Transfer $45: B=4890 → 4845, A=3310 → 3355
[TX027] Transfer $729: B=4845 → 4116, A=3355 → 4084
[TX028] Transfer $130: A=4084 → 3954, B=4116 → 4246
[TX029] Transfer $966: B=4246 → 3280, A=3954 → 4920
[TX030] Transfer $906: B=3280 → 2374, A=4920 → 5826
[TX031] Transfer $753: B=2374 → 1621, A=5826 → 6579
[TX032] Transfer $977: B=1621 → 644, A=6579 → 7556
[TX033] Transfer $374: B=644 → 270, A=7556 → 7930
[TX034] Transfer $104: B=270 → 166, A=7930 → 8034
[TX035] Transfer $253: A=8034 → 7781, B=166 → 419
[TX036] Transfer $584: A=7781 → 7197, B=419 → 1003
[TX037] Transfer $923: A=7197 → 6274, B=1003 → 1926
[TX038] Transfer $385: B=1926 → 1541, A=6274 → 6659
[TX039] Transfer $404: B=1541 → 1137, A=6659 → 7063
[TX040] Transfer $113: A=7063 → 6950, B=1137 → 1250
[TX041] Transfer $928: B=1250 → 322, A=6950 → 7878
[TX042] Transfer $53: B=322 → 269, A=7878 → 7931
[TX043] Transfer $566: A=7931 → 7365, B=269 → 835
[TX044] Transfer $961: A=7365 → 6404, B=835 → 1796
[TX045] Transfer $967: B=1796 → 829, A=6404 → 7371
[TX046] Transfer $712: B=829 → 117, A=7371 → 8083
[TX047] Transfer $583: A=8083 → 7500, B=117 → 700
[TX048] Transfer $765: A=7500 → 6735, B=700 → 1465
[TX049] Transfer $590: A=6735 → 6145, B=1465 → 2055
[TX050] Transfer $423: A=6145 → 5722, B=2055 → 2478
[TX051] Transfer $253: B=2478 → 2225, A=5722 → 5975
[TX052] Transfer $325: A=5975 → 5650, B=2225 → 2550
[TX053] Transfer $807: A=5650 → 4843, B=2550 → 3357
[TX054] Transfer $23: A=4843 → 4820, B=3357 → 3380
[TX055] Transfer $341: A=4820 → 4479, B=3380 → 3721
[TX056] Transfer $955: A=4479 → 3524, B=3721 → 4676
[TX057] Transfer $763: B=4676 → 3913, A=3524 → 4287
[TX058] Transfer $316: A=4287 → 3971, B=3913 → 4229
[TX059] Transfer $640: A=3971 → 3331, B=4229 → 4869
[TX060] Transfer $488: B=4869 → 4381, A=3331 → 3819
[TX061] Transfer $298: B=4381 → 4083, A=3819 → 4117
[TX062] Transfer $823: B=4083 → 3260, A=4117 → 4940
[TX063] Transfer $169: A=4940 → 4771, B=3260 → 3429
[TX064] Transfer $547: B=3429 → 2882, A=4771 → 5318
[TX065] Transfer $577: B=2882 → 2305, A=5318 → 5895
[TX066] Transfer $708: B=2305 → 1597, A=5895 → 6603
[TX067] Transfer $681: A=6603 → 5922, B=1597 → 2278
[TX068] Transfer $101: A=5922 → 5821, B=2278 → 2379
[TX069] Transfer $903: A=5821 → 4918, B=2379 → 3282
[TX070] Transfer $390: B=3282 → 2892, A=4918 → 5308
[TX071] Transfer $787: B=2892 → 2105, A=5308 → 6095
[TX072] Transfer $955: A=6095 → 5140, B=2105 → 3060
[TX073] Transfer $460: B=3060 → 2600, A=5140 → 5600
[TX074] Transfer $971: A=5600 → 4629, B=2600 → 3571
[TX075] Transfer $89: B=3571 → 3482, A=4629 → 4718
[TX076] Transfer $183: B=3482 → 3299, A=4718 → 4901
[TX077] Transfer $695: A=4901 → 4206, B=3299 → 3994
[TX078] Transfer $115: B=3994 → 3879, A=4206 → 4321
[TX079] Transfer $301: A=4321 → 4020, B=3879 → 4180
[TX080] Transfer $619: A=4020 → 3401, B=4180 → 4799
[TX081] Transfer $638: B=4799 → 4161, A=3401 → 4039
[TX082] Transfer $375: B=4161 → 3786, A=4039 → 4414
[TX083] Transfer $527: B=3786 → 3259, A=4414 → 4941
[TX084] Transfer $503: B=3259 → 2756, A=4941 → 5444
[TX085] Transfer $55: B=2756 → 2701, A=5444 → 5499
[TX086] Transfer $271: A=5499 → 5228, B=2701 → 2970
[TX087] Transfer $43: B=2972 → 2929, A=5228 → 5271
[TX088] Transfer $677: B=2929 → 2252, A=5271 → 5948
[TX089] Transfer $566: A=5948 → 5382, B=2252 → 2818
[TX090] Transfer $894: A=5382 → 4488, B=2818 → 3712
[TX091] Transfer $311: A=4488 → 4177, B=3712 → 4023
[TX092] Transfer $928: B=4023 → 3095, A=4177 → 5105
[TX093] Transfer $399: B=3095 → 2696, A=5105 → 5504
[TX094] Transfer $715: A=5504 → 4789, B=2696 → 3411
[TX095] Transfer $377: B=3411 → 3034, A=4789 → 5166
[TX096] Transfer $726: B=3034 → 2308, A=5166 → 5892
[TX097] Transfer $967: B=2308 → 1341, A=5892 → 6859
[TX098] Transfer $567: B=1341 → 774, A=6859 → 7426
[TX099] Transfer $290: A=7426 → 7136, B=774 → 1064
[TX100] Transfer $937: B=1064 → 127, A=7136 → 8073
[TX101] Transfer $27: B=127 → 100, A=8073 → 8100
[TX102] Balance check: B=100
[TX103] Transfer $827: A=8100 → 7273, B=100 → 927
[TX104] Transfer $78: A=7273 → 7195, B=927 → 1005
[TX105] Transfer $68: A=7195 → 7127, B=1005 → 1073
[TX106] Transfer $799: A=7127 → 6328, B=1073 → 1872
[TX107] Transfer $11: A=6328 → 6317, B=1872 → 1883
POSSIBLE BUG TYPES (choose exactly one):
- CALC_ERROR: Mathematical calculation is incorrect
- NEGATIVE_BAL: Account balance becomes negative
- LOST_UPDATE: Concurrent update causes lost transaction
- DUPLICATE_TXN: Same transaction processed multiple times
Identify the SINGLE bug if any exists.
Respond with ONLY a JSON object:
{"bug_type": "<type>", "bug_location": "<TX_ID>"
Your response:
|
CALC_ERROR
|
TX086
|
Mathematical calculation is incorrect
|
CALC_ERROR
| 107
|
{"bug_type": "CALC_ERROR", "bug_location": "TX086", "explanation": "Mathematical calculation is incorrect"}
|
{"bug_type": "CALC_ERROR", "n_ops": 107}
|
16
|
Analyze this banking transaction log for bugs.
Each operation shows the complete state change.
INITIAL STATE:
{
"account_A": 4000,
"account_B": 4200,
"total": 8200
}
RULES:
1. Total money must remain constant (conservation)
2. No account can go negative
3. All calculations must be mathematically correct
TRANSACTION LOG:
[TX001] Transfer $971: A=4000 → 3029, B=4200 → 5171
[TX002] Transfer $461: A=3029 → 2568, B=5171 → 5632
[TX003] Transfer $176: B=5632 → 5456, A=2568 → 2744
[TX004] Transfer $617: A=2744 → 2127, B=5456 → 6073
[TX005] Transfer $640: A=2127 → 1487, B=6073 → 6713
[TX006] Transfer $743: B=6713 → 5970, A=1487 → 2230
[TX007] Transfer $612: B=5970 → 5358, A=2230 → 2842
[TX008] Transfer $389: A=2842 → 2453, B=5358 → 5747
[TX009] Transfer $113: B=5747 → 5634, A=2453 → 2566
[TX010] Transfer $537: A=2566 → 2029, B=5634 → 6171
[TX011] Transfer $622: B=6171 → 5549, A=2029 → 2651
[TX012] Transfer $489: A=2651 → 2162, B=5549 → 6038
[TX013] Transfer $97: A=2162 → 2065, B=6038 → 6135
[TX014] Transfer $925: B=6135 → 5210, A=2065 → 2990
[TX015] Transfer $536: A=2990 → 2454, B=5210 → 5746
[TX016] Transfer $897: B=5746 → 4849, A=2454 → 3351
[TX017] Transfer $236: A=3351 → 3115, B=4849 → 5085
[TX018] Transfer $360: B=5085 → 4725, A=3115 → 3475
[TX019] Transfer $139: A=3475 → 3336, B=4725 → 4864
[TX020] Transfer $786: B=4864 → 4078, A=3336 → 4122
[TX021] Transfer $292: A=4122 → 3830, B=4078 → 4370
[TX022] Transfer $195: B=4370 → 4175, A=3830 → 4025
[TX023] Transfer $593: A=4025 → 3432, B=4175 → 4768
[TX024] Transfer $386: A=3432 → 3046, B=4768 → 5154
[TX025] Transfer $420: A=3046 → 2626, B=5154 → 5574
[TX026] Transfer $160: B=5574 → 5414, A=2626 → 2786
[TX027] Transfer $269: B=5414 → 5145, A=2786 → 3055
[TX028] Transfer $628: B=5145 → 4517, A=3055 → 3683
[TX029] Transfer $775: B=4517 → 3742, A=3683 → 4458
[TX030] Transfer $567: A=4458 → 3891, B=3742 → 4309
[TX031] Transfer $381: B=4309 → 3928, A=3891 → 4272
[TX032] Transfer $316: B=3928 → 3612, A=4272 → 4588
[TX033] Transfer $755: B=3612 → 2857, A=4588 → 5343
[TX034] Transfer $767: A=5343 → 4576, B=2857 → 3624
[TX035] Transfer $803: A=4576 → 3773, B=3624 → 4427
[TX036] Transfer $221: A=3773 → 3552, B=4427 → 4648
[TX037] Transfer $822: B=4648 → 3826, A=3552 → 4374
[TX038] Transfer $400: A=4374 → 3974, B=3826 → 4226
[TX039] Transfer $845: A=3974 → 3129, B=4226 → 5071
[TX040] Transfer $950: A=3129 → 2179, B=5071 → 6021
[TX041] Transfer $67: B=6021 → 5954, A=2179 → 2246
[TX042] Transfer $381: B=5954 → 5573, A=2246 → 2627
[TX043] Transfer $743: A=2627 → 1884, B=5573 → 6316
[TX044] Transfer $630: B=6316 → 5686, A=1884 → 2514
[TX045] Transfer $970: B=5686 → 4716, A=2514 → 3484
[TX046] Transfer $451: A=3484 → 3033, B=4716 → 5167
[TX047] Transfer $872: A=3033 → 2161, B=5167 → 6039
[TX048] Transfer $36: B=6039 → 6003, A=2161 → 2197
[TX049] Transfer $692: A=2197 → 1505, B=6003 → 6695
[TX050] Transfer $246: A=1505 → 1259, B=6695 → 6941
[TX051] Transfer $90: A=1259 → 1169, B=6941 → 7031
[TX052] Thread T1: READ B=7031
[TX053] Thread T2: READ B=7031
[TX054] Thread T1: COMMIT B=7031 → 6879
[TX055] Thread T2: COMMIT B=7031 → 6891
[TX056] Transfer $602: B=6891 → 6289, A=1169 → 1771
[TX057] Transfer $756: A=1771 → 1015, B=6289 → 7045
[TX058] Transfer $564: A=1015 → 451, B=7045 → 7609
[TX059] Transfer $357: B=7609 → 7252, A=451 → 808
[TX060] Transfer $622: B=7252 → 6630, A=808 → 1430
[TX061] Transfer $954: A=1430 → 476, B=6630 → 7584
[TX062] Transfer $269: B=7584 → 7315, A=476 → 745
[TX063] Transfer $520: A=745 → 225, B=7315 → 7835
[TX064] Transfer $66: A=225 → 159, B=7835 → 7901
[TX065] Transfer $971: B=7901 → 6930, A=159 → 1130
[TX066] Transfer $899: A=1130 → 231, B=6930 → 7829
[TX067] Transfer $991: B=7829 → 6838, A=231 → 1222
[TX068] Transfer $790: B=6838 → 6048, A=1222 → 2012
[TX069] Transfer $986: A=2012 → 1026, B=6048 → 7034
[TX070] Transfer $920: B=7034 → 6114, A=1026 → 1946
[TX071] Transfer $121: A=1946 → 1825, B=6114 → 6235
[TX072] Transfer $393: B=6235 → 5842, A=1825 → 2218
[TX073] Transfer $821: A=2218 → 1397, B=5842 → 6663
[TX074] Transfer $980: B=6663 → 5683, A=1397 → 2377
[TX075] Transfer $719: B=5683 → 4964, A=2377 → 3096
[TX076] Transfer $296: B=4964 → 4668, A=3096 → 3392
[TX077] Transfer $691: A=3392 → 2701, B=4668 → 5359
[TX078] Transfer $569: B=5359 → 4790, A=2701 → 3270
[TX079] Transfer $323: A=3270 → 2947, B=4790 → 5113
[TX080] Transfer $917: B=5113 → 4196, A=2947 → 3864
[TX081] Transfer $971: B=4196 → 3225, A=3864 → 4835
[TX082] Transfer $756: A=4835 → 4079, B=3225 → 3981
[TX083] Transfer $755: A=4079 → 3324, B=3981 → 4736
[TX084] Transfer $213: A=3324 → 3111, B=4736 → 4949
[TX085] Transfer $856: A=3111 → 2255, B=4949 → 5805
[TX086] Transfer $161: A=2255 → 2094, B=5805 → 5966
[TX087] Transfer $944: A=2094 → 1150, B=5966 → 6910
[TX088] Transfer $630: A=1150 → 520, B=6910 → 7540
[TX089] Transfer $248: A=520 → 272, B=7540 → 7788
[TX090] Transfer $506: B=7788 → 7282, A=272 → 778
[TX091] Transfer $189: B=7282 → 7093, A=778 → 967
[TX092] Transfer $229: B=7093 → 6864, A=967 → 1196
[TX093] Transfer $540: A=1196 → 656, B=6864 → 7404
[TX094] Transfer $964: B=7404 → 6440, A=656 → 1620
[TX095] Transfer $405: A=1620 → 1215, B=6440 → 6845
[TX096] Transfer $125: A=1215 → 1090, B=6845 → 6970
POSSIBLE BUG TYPES (choose exactly one):
- CALC_ERROR: Mathematical calculation is incorrect
- NEGATIVE_BAL: Account balance becomes negative
- LOST_UPDATE: Concurrent update causes lost transaction
- DUPLICATE_TXN: Same transaction processed multiple times
Identify the SINGLE bug if any exists.
Respond with ONLY a JSON object:
{"bug_type": "<type>", "bug_location": "<TX_ID>"
Your response:
|
LOST_UPDATE
|
TX055
|
Thread T2 overwrites T1's change
|
LOST_UPDATE
| 96
|
{"bug_type": "LOST_UPDATE", "bug_location": "TX055", "explanation": "Thread T2 overwrites T1's change"}
|
{"bug_type": "LOST_UPDATE", "n_ops": 96}
|
38
|
Analyze this banking transaction log for bugs.
Each operation shows the complete state change.
INITIAL STATE:
{
"account_A": 4000,
"account_B": 4200,
"total": 8200
}
RULES:
1. Total money must remain constant (conservation)
2. No account can go negative
3. All calculations must be mathematically correct
TRANSACTION LOG:
[TX001] Transfer $365: A=4000 → 3635, B=4200 → 4565
[TX002] Transfer $576: B=4565 → 3989, A=3635 → 4211
[TX003] Transfer $742: A=4211 → 3469, B=3989 → 4731
[TX004] Transfer $682: A=3469 → 2787, B=4731 → 5413
[TX005] Transfer $156: B=5413 → 5257, A=2787 → 2943
[TX006] Transfer $513: B=5257 → 4744, A=2943 → 3456
[TX007] Transfer $813: B=4744 → 3931, A=3456 → 4269
[TX008] Transfer $535: B=3931 → 3396, A=4269 → 4804
[TX009] Transfer $967: A=4804 → 3837, B=3396 → 4363
[TX010] Transfer $656: A=3837 → 3181, B=4363 → 5019
[TX011] Transfer $225: A=3181 → 2956, B=5019 → 5244
[TX012] Transfer $715: A=2956 → 2241, B=5244 → 5959
[TX013] Transfer $223: A=2241 → 2018, B=5959 → 6182
[TX014] Transfer $977: B=6182 → 5205, A=2018 → 2995
[TX015] Transfer $381: A=2995 → 2614, B=5205 → 5586
[TX016] Transfer $311: B=5586 → 5275, A=2614 → 2925
[TX017] Transfer $718: B=5275 → 4557, A=2925 → 3643
[TX018] Transfer $425: B=4557 → 4132, A=3643 → 4068
[TX019] Transfer $362: B=4132 → 3770, A=4068 → 4430
[TX020] Transfer $118: B=3770 → 3652, A=4430 → 4548
[TX021] Transfer $440: A=4548 → 4108, B=3652 → 4092
[TX022] Transfer $568: B=4092 → 3524, A=4108 → 4676
[TX023] Transfer $392: A=4676 → 4284, B=3524 → 3916
[TX024] Transfer $651: B=3916 → 3265, A=4284 → 4935
[TX025] Transfer $91: B=3265 → 3174, A=4935 → 5026
[TX026] Transfer $667: A=5026 → 4359, B=3174 → 3841
[TX027] Transfer $108: A=4359 → 4251, B=3841 → 3949
[TX028] Transfer $650: B=3949 → 3299, A=4251 → 4901
[TX029] Transfer $685: B=3299 → 2614, A=4901 → 5586
[TX030] Transfer $218: B=2614 → 2396, A=5586 → 5804
[TX031] Payment PAY1010: Transfer $566: A=5804 → 5238, B=2396 → 2962
[TX032] Transfer $202: B=2962 → 2760, A=5238 → 5440
[TX033] Transfer $361: B=2760 → 2399, A=5440 → 5801
[TX034] Transfer $931: B=2399 → 1468, A=5801 → 6732
[TX035] Transfer $964: B=1468 → 504, A=6732 → 7696
[TX036] Transfer $261: B=504 → 243, A=7696 → 7957
[TX037] Transfer $69: B=243 → 174, A=7957 → 8026
[TX038] Transfer $32: B=174 → 142, A=8026 → 8058
[TX039] Transfer $35: A=8058 → 8023, B=142 → 177
[TX040] Transfer $159: A=8023 → 7864, B=177 → 336
[TX041] Transfer $87: B=336 → 249, A=7864 → 7951
[TX042] Transfer $249: A=7951 → 7702, B=249 → 498
[TX043] Transfer $317: B=498 → 181, A=7702 → 8019
[TX044] Transfer $75: B=181 → 106, A=8019 → 8094
[TX045] Transfer $5: B=106 → 101, A=8094 → 8099
[TX046] Transfer $927: A=8099 → 7172, B=101 → 1028
[TX047] Transfer $449: B=1028 → 579, A=7172 → 7621
[TX048] Transfer $729: A=7621 → 6892, B=579 → 1308
[TX049] Transfer $648: A=6892 → 6244, B=1308 → 1956
[TX050] Transfer $859: B=1956 → 1097, A=6244 → 7103
[TX051] Transfer $210: A=7103 → 6893, B=1097 → 1307
[TX052] Transfer $28: A=6893 → 6865, B=1307 → 1335
[TX053] Transfer $645: B=1335 → 690, A=6865 → 7510
[TX054] Transfer $634: A=7510 → 6876, B=690 → 1324
[TX055] Transfer $27: A=6876 → 6849, B=1324 → 1351
[TX056] Transfer $651: A=6849 → 6198, B=1351 → 2002
[TX057] Transfer $247: B=2002 → 1755, A=6198 → 6445
[TX058] Transfer $200: A=6445 → 6245, B=1755 → 1955
[TX059] Transfer $790: A=6245 → 5455, B=1955 → 2745
[TX060] Transfer $283: B=2745 → 2462, A=5455 → 5738
[TX061] Transfer $644: A=5738 → 5094, B=2462 → 3106
[TX062] Transfer $115: A=5094 → 4979, B=3106 → 3221
[TX063] Transfer $111: B=3221 → 3110, A=4979 → 5090
[TX064] Transfer $270: A=5090 → 4820, B=3110 → 3380
[TX065] Transfer $81: A=4820 → 4739, B=3380 → 3461
[TX066] Transfer $936: B=3461 → 2525, A=4739 → 5675
[TX067] Transfer $105: A=5675 → 5570, B=2525 → 2630
[TX068] Transfer $425: B=2630 → 2205, A=5570 → 5995
[TX069] Transfer $984: A=5995 → 5011, B=2205 → 3189
[TX070] Transfer $705: A=5011 → 4306, B=3189 → 3894
[TX071] Transfer $913: B=3894 → 2981, A=4306 → 5219
[TX072] Transfer $829: B=2981 → 2152, A=5219 → 6048
[TX073] Transfer $307: A=6048 → 5741, B=2152 → 2459
[TX074] Transfer $677: A=5741 → 5064, B=2459 → 3136
[TX075] Transfer $353: A=5064 → 4711, B=3136 → 3489
[TX076] Transfer $630: B=3489 → 2859, A=4711 → 5341
[TX077] Transfer $536: A=5341 → 4805, B=2859 → 3395
[TX078] Transfer $199: B=3395 → 3196, A=4805 → 5004
[TX079] Transfer $532: A=5004 → 4472, B=3196 → 3728
[TX080] Transfer $889: A=4472 → 3583, B=3728 → 4617
[TX081] Transfer $922: B=4617 → 3695, A=3583 → 4505
[TX082] Transfer $337: A=4505 → 4168, B=3695 → 4032
[TX083] Transfer $87: A=4168 → 4081, B=4032 → 4119
[TX084] Transfer $282: A=4081 → 3799, B=4119 → 4401
[TX085] Transfer $978: B=4401 → 3423, A=3799 → 4777
[TX086] Transfer $727: A=4777 → 4050, B=3423 → 4150
[TX087] Transfer $765: B=4150 → 3385, A=4050 → 4815
[TX088] Transfer $526: B=3385 → 2859, A=4815 → 5341
[TX089] Transfer $258: B=2859 → 2601, A=5341 → 5599
[TX090] Transfer $705: A=5599 → 4894, B=2601 → 3306
[TX091] Transfer $107: B=3306 → 3199, A=4894 → 5001
[TX092] Payment PAY1010: Transfer $566: A=5001 → 4435, B=3199 → 3765
[TX093] Transfer $815: B=3765 → 2950, A=4435 → 5250
[TX094] Transfer $445: A=5250 → 4805, B=2950 → 3395
[TX095] Transfer $612: B=3395 → 2783, A=4805 → 5417
[TX096] Transfer $639: B=2783 → 2144, A=5417 → 6056
[TX097] Transfer $441: A=6056 → 5615, B=2144 → 2585
[TX098] Transfer $384: A=5615 → 5231, B=2585 → 2969
[TX099] Transfer $173: A=5231 → 5058, B=2969 → 3142
[TX100] Transfer $602: A=5058 → 4456, B=3142 → 3744
[TX101] Transfer $620: B=3744 → 3124, A=4456 → 5076
[TX102] Transfer $32: B=3124 → 3092, A=5076 → 5108
[TX103] Transfer $830: A=5108 → 4278, B=3092 → 3922
[TX104] Transfer $811: B=3922 → 3111, A=4278 → 5089
[TX105] Transfer $253: A=5089 → 4836, B=3111 → 3364
POSSIBLE BUG TYPES (choose exactly one):
- CALC_ERROR: Mathematical calculation is incorrect
- NEGATIVE_BAL: Account balance becomes negative
- LOST_UPDATE: Concurrent update causes lost transaction
- DUPLICATE_TXN: Same transaction processed multiple times
Identify the SINGLE bug if any exists.
Respond with ONLY a JSON object:
{"bug_type": "<type>", "bug_location": "<TX_ID>"
Your response:
|
DUPLICATE_TXN
|
TX092
|
Payment PAY1010 processed twice
|
DUPLICATE_TXN
| 105
|
{"bug_type": "DUPLICATE_TXN", "bug_location": "TX092", "explanation": "Payment PAY1010 processed twice"}
|
{"bug_type": "DUPLICATE_TXN", "n_ops": 105}
|
58
|
Analyze this banking transaction log for bugs.
Each operation shows the complete state change.
INITIAL STATE:
{
"account_A": 4000,
"account_B": 4200,
"total": 8200
}
RULES:
1. Total money must remain constant (conservation)
2. No account can go negative
3. All calculations must be mathematically correct
TRANSACTION LOG:
[TX001] Transfer $896: A=4000 → 3104, B=4200 → 5096
[TX002] Transfer $978: A=3104 → 2126, B=5096 → 6074
[TX003] Transfer $799: A=2126 → 1327, B=6074 → 6873
[TX004] Transfer $118: B=6873 → 6755, A=1327 → 1445
[TX005] Transfer $126: B=6755 → 6629, A=1445 → 1571
[TX006] Transfer $494: B=6629 → 6135, A=1571 → 2065
[TX007] Transfer $366: B=6135 → 5769, A=2065 → 2431
[TX008] Transfer $182: A=2431 → 2249, B=5769 → 5951
[TX009] Thread T1: READ B=5951
[TX010] Thread T2: READ B=5951
[TX011] Thread T1: COMMIT B=5951 → 5853
[TX012] Thread T2: COMMIT B=5951 → 5762
[TX013] Transfer $934: B=5762 → 4828, A=2249 → 3183
[TX014] Transfer $168: A=3183 → 3015, B=4828 → 4996
[TX015] Transfer $166: A=3015 → 2849, B=4996 → 5162
[TX016] Transfer $948: A=2849 → 1901, B=5162 → 6110
[TX017] Transfer $350: B=6110 → 5760, A=1901 → 2251
[TX018] Transfer $108: B=5760 → 5652, A=2251 → 2359
[TX019] Transfer $173: B=5652 → 5479, A=2359 → 2532
[TX020] Transfer $794: A=2532 → 1738, B=5479 → 6273
[TX021] Transfer $856: A=1738 → 882, B=6273 → 7129
[TX022] Transfer $398: B=7129 → 6731, A=882 → 1280
[TX023] Transfer $205: B=6731 → 6526, A=1280 → 1485
[TX024] Transfer $465: A=1485 → 1020, B=6526 → 6991
[TX025] Transfer $586: A=1020 → 434, B=6991 → 7577
[TX026] Transfer $682: B=7577 → 6895, A=434 → 1116
[TX027] Transfer $427: B=6895 → 6468, A=1116 → 1543
[TX028] Transfer $884: A=1543 → 659, B=6468 → 7352
[TX029] Transfer $139: B=7352 → 7213, A=659 → 798
[TX030] Transfer $609: A=798 → 189, B=7213 → 7822
[TX031] Transfer $65: A=189 → 124, B=7822 → 7887
[TX032] Transfer $641: B=7887 → 7246, A=124 → 765
[TX033] Transfer $253: A=765 → 512, B=7246 → 7499
[TX034] Transfer $302: B=7499 → 7197, A=512 → 814
[TX035] Transfer $58: A=814 → 756, B=7197 → 7255
[TX036] Transfer $714: B=7255 → 6541, A=756 → 1470
[TX037] Transfer $158: B=6541 → 6383, A=1470 → 1628
[TX038] Transfer $872: B=6383 → 5511, A=1628 → 2500
[TX039] Transfer $1000: B=5511 → 4511, A=2500 → 3500
[TX040] Transfer $512: B=4511 → 3999, A=3500 → 4012
[TX041] Transfer $418: B=3999 → 3581, A=4012 → 4430
[TX042] Transfer $293: A=4430 → 4137, B=3581 → 3874
[TX043] Transfer $730: B=3874 → 3144, A=4137 → 4867
[TX044] Transfer $955: A=4867 → 3912, B=3144 → 4099
[TX045] Transfer $118: A=3912 → 3794, B=4099 → 4217
[TX046] Transfer $788: A=3794 → 3006, B=4217 → 5005
[TX047] Transfer $911: B=5005 → 4094, A=3006 → 3917
[TX048] Transfer $592: A=3917 → 3325, B=4094 → 4686
[TX049] Transfer $239: A=3325 → 3086, B=4686 → 4925
[TX050] Transfer $320: A=3086 → 2766, B=4925 → 5245
[TX051] Transfer $930: A=2766 → 1836, B=5245 → 6175
[TX052] Transfer $918: B=6175 → 5257, A=1836 → 2754
[TX053] Transfer $321: B=5257 → 4936, A=2754 → 3075
[TX054] Transfer $675: B=4936 → 4261, A=3075 → 3750
[TX055] Transfer $760: B=4261 → 3501, A=3750 → 4510
[TX056] Transfer $72: A=4510 → 4438, B=3501 → 3573
[TX057] Transfer $111: A=4438 → 4327, B=3573 → 3684
[TX058] Transfer $482: B=3684 → 3202, A=4327 → 4809
[TX059] Transfer $556: B=3202 → 2646, A=4809 → 5365
[TX060] Transfer $164: A=5365 → 5201, B=2646 → 2810
[TX061] Transfer $344: A=5201 → 4857, B=2810 → 3154
[TX062] Transfer $666: A=4857 → 4191, B=3154 → 3820
[TX063] Transfer $483: A=4191 → 3708, B=3820 → 4303
[TX064] Transfer $175: A=3708 → 3533, B=4303 → 4478
[TX065] Transfer $7: A=3533 → 3526, B=4478 → 4485
[TX066] Transfer $506: B=4485 → 3979, A=3526 → 4032
[TX067] Transfer $442: A=4032 → 3590, B=3979 → 4421
[TX068] Transfer $199: A=3590 → 3391, B=4421 → 4620
[TX069] Transfer $141: B=4620 → 4479, A=3391 → 3532
[TX070] Transfer $934: B=4479 → 3545, A=3532 → 4466
[TX071] Transfer $257: B=3545 → 3288, A=4466 → 4723
[TX072] Transfer $263: A=4723 → 4460, B=3288 → 3551
[TX073] Transfer $119: B=3551 → 3432, A=4460 → 4579
[TX074] Transfer $766: B=3432 → 2666, A=4579 → 5345
[TX075] Transfer $592: B=2666 → 2074, A=5345 → 5937
[TX076] Transfer $992: A=5937 → 4945, B=2074 → 3066
[TX077] Transfer $730: A=4945 → 4215, B=3066 → 3796
[TX078] Transfer $257: A=4215 → 3958, B=3796 → 4053
[TX079] Transfer $702: A=3958 → 3256, B=4053 → 4755
[TX080] Transfer $990: B=4755 → 3765, A=3256 → 4246
[TX081] Transfer $984: A=4246 → 3262, B=3765 → 4749
[TX082] Transfer $669: A=3262 → 2593, B=4749 → 5418
[TX083] Transfer $851: A=2593 → 1742, B=5418 → 6269
[TX084] Transfer $111: A=1742 → 1631, B=6269 → 6380
[TX085] Transfer $459: B=6380 → 5921, A=1631 → 2090
[TX086] Transfer $743: A=2090 → 1347, B=5921 → 6664
[TX087] Transfer $334: A=1347 → 1013, B=6664 → 6998
[TX088] Transfer $677: B=6998 → 6321, A=1013 → 1690
[TX089] Transfer $681: B=6321 → 5640, A=1690 → 2371
[TX090] Transfer $213: A=2371 → 2158, B=5640 → 5853
[TX091] Transfer $194: B=5853 → 5659, A=2158 → 2352
[TX092] Transfer $502: A=2352 → 1850, B=5659 → 6161
[TX093] Transfer $52: B=6161 → 6109, A=1850 → 1902
[TX094] Transfer $445: B=6109 → 5664, A=1902 → 2347
[TX095] Transfer $64: B=5664 → 5600, A=2347 → 2411
[TX096] Transfer $538: A=2411 → 1873, B=5600 → 6138
[TX097] Transfer $425: B=6138 → 5713, A=1873 → 2298
[TX098] Transfer $146: A=2298 → 2152, B=5713 → 5859
POSSIBLE BUG TYPES (choose exactly one):
- CALC_ERROR: Mathematical calculation is incorrect
- NEGATIVE_BAL: Account balance becomes negative
- LOST_UPDATE: Concurrent update causes lost transaction
- DUPLICATE_TXN: Same transaction processed multiple times
Identify the SINGLE bug if any exists.
Respond with ONLY a JSON object:
{"bug_type": "<type>", "bug_location": "<TX_ID>"
Your response:
|
LOST_UPDATE
|
TX012
|
Thread T2 overwrites T1's change
|
LOST_UPDATE
| 98
|
{"bug_type": "LOST_UPDATE", "bug_location": "TX012", "explanation": "Thread T2 overwrites T1's change"}
|
{"bug_type": "LOST_UPDATE", "n_ops": 98}
|
68
|
Analyze this banking transaction log for bugs.
Each operation shows the complete state change.
INITIAL STATE:
{
"account_A": 4000,
"account_B": 4200,
"total": 8200
}
RULES:
1. Total money must remain constant (conservation)
2. No account can go negative
3. All calculations must be mathematically correct
TRANSACTION LOG:
[TX001] Transfer $727: B=4200 → 3473, A=4000 → 4727
[TX002] Transfer $290: A=4727 → 4437, B=3473 → 3763
[TX003] Transfer $556: A=4437 → 3881, B=3763 → 4319
[TX004] Transfer $410: B=4319 → 3909, A=3881 → 4291
[TX005] Transfer $44: B=3909 → 3865, A=4291 → 4335
[TX006] Transfer $793: A=4335 → 3542, B=3865 → 4658
[TX007] Transfer $431: A=3542 → 3111, B=4658 → 5089
[TX008] Transfer $569: A=3111 → 2542, B=5089 → 5658
[TX009] Transfer $549: A=2542 → 1993, B=5658 → 6207
[TX010] Transfer $399: B=6207 → 5808, A=1993 → 2392
[TX011] Transfer $542: B=5808 → 5266, A=2392 → 2934
[TX012] Transfer $573: A=2934 → 2361, B=5266 → 5839
[TX013] Transfer $543: A=2361 → 1818, B=5839 → 6382
[TX014] Transfer $374: B=6382 → 6008, A=1818 → 2192
[TX015] Transfer $824: A=2192 → 1368, B=6008 → 6832
[TX016] Transfer $373: B=6832 → 6459, A=1368 → 1741
[TX017] Transfer $585: B=6459 → 5874, A=1741 → 2326
[TX018] Transfer $25: B=5874 → 5849, A=2326 → 2351
[TX019] Transfer $24: A=2351 → 2327, B=5849 → 5873
[TX020] Transfer $443: A=2327 → 1884, B=5873 → 6316
[TX021] Transfer $871: B=6316 → 5445, A=1884 → 2755
[TX022] Transfer $17: A=2755 → 2738, B=5445 → 5462
[TX023] Transfer $568: B=5462 → 4894, A=2738 → 3306
[TX024] Transfer $958: A=3306 → 2348, B=4894 → 5852
[TX025] Transfer $804: A=2348 → 1544, B=5852 → 6656
[TX026] Transfer $345: B=6656 → 6311, A=1544 → 1889
[TX027] Transfer $473: B=6311 → 5838, A=1889 → 2362
[TX028] Transfer $299: B=5838 → 5539, A=2362 → 2661
[TX029] Transfer $501: A=2661 → 2160, B=5539 → 6040
[TX030] Transfer $618: B=6040 → 5422, A=2160 → 2778
[TX031] Transfer $100: A=2778 → 2678, B=5422 → 5522
[TX032] Transfer $96: A=2678 → 2582, B=5522 → 5618
[TX033] Transfer $448: B=5618 → 5170, A=2582 → 3030
[TX034] Transfer $168: B=5170 → 5002, A=3030 → 3198
[TX035] Transfer $344: A=3198 → 2854, B=5002 → 5346
[TX036] Transfer $56: A=2854 → 2798, B=5346 → 5402
[TX037] Transfer $274: B=5402 → 5128, A=2798 → 3072
[TX038] Transfer $845: A=3072 → 2227, B=5128 → 5973
[TX039] Transfer $383: B=5973 → 5590, A=2227 → 2610
[TX040] Transfer $328: B=5590 → 5262, A=2610 → 2938
[TX041] Transfer $4: B=5262 → 5258, A=2938 → 2942
[TX042] Transfer $866: A=2942 → 2076, B=5258 → 6124
[TX043] Transfer $852: B=6124 → 5272, A=2076 → 2928
[TX044] Transfer $962: A=2928 → 1966, B=5272 → 6234
[TX045] Transfer $649: A=1966 → 1317, B=6234 → 6883
[TX046] Transfer $949: B=6883 → 5934, A=1317 → 2266
[TX047] Transfer $283: B=5934 → 5651, A=2266 → 2549
[TX048] Transfer $177: A=2549 → 2372, B=5651 → 5828
[TX049] Transfer $2381: A=2372 → -9, B=5828 → 8209
[TX050] Transfer $517: B=8209 → 7692, A=-9 → 508
[TX051] Transfer $371: A=508 → 137, B=7692 → 8063
[TX052] Transfer $61: B=8063 → 8002, A=137 → 198
[TX053] Transfer $68: A=198 → 130, B=8002 → 8070
[TX054] Transfer $24: A=130 → 106, B=8070 → 8094
[TX055] Transfer $248: B=8094 → 7846, A=106 → 354
[TX056] Transfer $109: A=354 → 245, B=7846 → 7955
[TX057] Transfer $140: A=245 → 105, B=7955 → 8095
[TX058] Transfer $495: B=8095 → 7600, A=105 → 600
[TX059] Transfer $404: A=600 → 196, B=7600 → 8004
[TX060] Transfer $95: B=8004 → 7909, A=196 → 291
[TX061] Transfer $2: A=291 → 289, B=7909 → 7911
[TX062] Transfer $29: A=289 → 260, B=7911 → 7940
[TX063] Transfer $49: A=260 → 211, B=7940 → 7989
[TX064] Transfer $767: B=7989 → 7222, A=211 → 978
[TX065] Transfer $234: A=978 → 744, B=7222 → 7456
[TX066] Transfer $842: B=7456 → 6614, A=744 → 1586
[TX067] Transfer $46: A=1586 → 1540, B=6614 → 6660
[TX068] Transfer $74: A=1540 → 1466, B=6660 → 6734
[TX069] Transfer $698: B=6734 → 6036, A=1466 → 2164
[TX070] Transfer $981: A=2164 → 1183, B=6036 → 7017
[TX071] Transfer $929: B=7017 → 6088, A=1183 → 2112
[TX072] Transfer $577: A=2112 → 1535, B=6088 → 6665
[TX073] Transfer $234: B=6665 → 6431, A=1535 → 1769
[TX074] Transfer $425: A=1769 → 1344, B=6431 → 6856
[TX075] Transfer $354: A=1344 → 990, B=6856 → 7210
[TX076] Transfer $287: A=990 → 703, B=7210 → 7497
[TX077] Transfer $425: B=7497 → 7072, A=703 → 1128
[TX078] Transfer $487: A=1128 → 641, B=7072 → 7559
POSSIBLE BUG TYPES (choose exactly one):
- CALC_ERROR: Mathematical calculation is incorrect
- NEGATIVE_BAL: Account balance becomes negative
- LOST_UPDATE: Concurrent update causes lost transaction
- DUPLICATE_TXN: Same transaction processed multiple times
Identify the SINGLE bug if any exists.
Respond with ONLY a JSON object:
{"bug_type": "<type>", "bug_location": "<TX_ID>"
Your response:
|
NEGATIVE_BAL
|
TX049
|
Account balance goes negative
|
NEGATIVE_BAL
| 78
|
{"bug_type": "NEGATIVE_BAL", "bug_location": "TX049", "explanation": "Account balance goes negative"}
|
{"bug_type": "NEGATIVE_BAL", "n_ops": 78}
|
22
|
Analyze this banking transaction log for bugs.
Each operation shows the complete state change.
INITIAL STATE:
{
"account_A": 4000,
"account_B": 4200,
"total": 8200
}
RULES:
1. Total money must remain constant (conservation)
2. No account can go negative
3. All calculations must be mathematically correct
TRANSACTION LOG:
[TX001] Transfer $820: B=4200 → 3380, A=4000 → 4820
[TX002] Transfer $88: A=4820 → 4732, B=3380 → 3468
[TX003] Transfer $859: A=4732 → 3873, B=3468 → 4327
[TX004] Transfer $790: B=4327 → 3537, A=3873 → 4663
[TX005] Transfer $678: B=3537 → 2859, A=4663 → 5341
[TX006] Transfer $217: B=2859 → 2642, A=5341 → 5558
[TX007] Transfer $659: B=2642 → 1983, A=5558 → 6217
[TX008] Transfer $55: B=1983 → 1928, A=6217 → 6272
[TX009] Transfer $410: A=6272 → 5862, B=1928 → 2338
[TX010] Transfer $489: B=2338 → 1849, A=5862 → 6351
[TX011] Transfer $701: A=6351 → 5650, B=1849 → 2550
[TX012] Transfer $270: B=2550 → 2280, A=5650 → 5920
[TX013] Transfer $14: A=5920 → 5906, B=2280 → 2294
[TX014] Transfer $393: B=2294 → 1901, A=5906 → 6299
[TX015] Transfer $101: B=1901 → 1800, A=6299 → 6400
[TX016] Transfer $627: B=1800 → 1173, A=6400 → 7027
[TX017] Transfer $278: B=1173 → 895, A=7027 → 7305
[TX018] Transfer $263: B=895 → 632, A=7305 → 7568
[TX019] Transfer $249: B=632 → 383, A=7568 → 7817
[TX020] Transfer $695: A=7817 → 7122, B=383 → 1078
[TX021] Transfer $562: A=7122 → 6560, B=1078 → 1640
[TX022] Transfer $853: A=6560 → 5707, B=1640 → 2493
[TX023] Transfer $423: A=5707 → 5284, B=2493 → 2916
[TX024] Transfer $703: A=5284 → 4581, B=2916 → 3619
[TX025] Transfer $226: B=3619 → 3393, A=4581 → 4807
[TX026] Transfer $199: B=3393 → 3194, A=4807 → 5006
[TX027] Transfer $636: A=5006 → 4370, B=3194 → 3830
[TX028] Transfer $963: A=4370 → 3407, B=3830 → 4793
[TX029] Transfer $727: A=3407 → 2680, B=4793 → 5520
[TX030] Transfer $878: A=2680 → 1802, B=5520 → 6398
[TX031] Transfer $674: A=1802 → 1128, B=6398 → 7072
[TX032] Transfer $714: A=1128 → 414, B=7072 → 7785
[TX033] Transfer $480: B=7786 → 7306, A=414 → 894
[TX034] Transfer $285: A=894 → 609, B=7306 → 7591
[TX035] Transfer $265: B=7591 → 7326, A=609 → 874
[TX036] Transfer $285: A=874 → 589, B=7326 → 7611
[TX037] Transfer $200: A=589 → 389, B=7611 → 7811
[TX038] Transfer $266: B=7811 → 7545, A=389 → 655
[TX039] Transfer $453: B=7545 → 7092, A=655 → 1108
[TX040] Transfer $952: A=1108 → 156, B=7092 → 8044
[TX041] Transfer $13: A=156 → 143, B=8044 → 8057
[TX042] Transfer $149: B=8057 → 7908, A=143 → 292
[TX043] Transfer $630: B=7908 → 7278, A=292 → 922
[TX044] Transfer $734: A=922 → 188, B=7278 → 8012
[TX045] Transfer $37: B=8012 → 7975, A=188 → 225
[TX046] Transfer $75: A=225 → 150, B=7975 → 8050
[TX047] Transfer $21: B=8050 → 8029, A=150 → 171
[TX048] Transfer $670: B=8029 → 7359, A=171 → 841
[TX049] Transfer $682: A=841 → 159, B=7359 → 8041
[TX050] Transfer $157: B=8041 → 7884, A=159 → 316
[TX051] Transfer $590: B=7884 → 7294, A=316 → 906
[TX052] Transfer $491: A=906 → 415, B=7294 → 7785
[TX053] Transfer $866: B=7785 → 6919, A=415 → 1281
[TX054] Transfer $5: A=1281 → 1276, B=6919 → 6924
[TX055] Transfer $126: B=6924 → 6798, A=1276 → 1402
[TX056] Transfer $700: B=6798 → 6098, A=1402 → 2102
[TX057] Transfer $58: B=6098 → 6040, A=2102 → 2160
[TX058] Transfer $549: A=2160 → 1611, B=6040 → 6589
[TX059] Transfer $863: B=6589 → 5726, A=1611 → 2474
[TX060] Transfer $665: B=5726 → 5061, A=2474 → 3139
[TX061] Transfer $569: A=3139 → 2570, B=5061 → 5630
[TX062] Transfer $678: A=2570 → 1892, B=5630 → 6308
[TX063] Transfer $714: A=1892 → 1178, B=6308 → 7022
[TX064] Transfer $647: B=7022 → 6375, A=1178 → 1825
[TX065] Transfer $88: B=6375 → 6287, A=1825 → 1913
[TX066] Transfer $145: B=6287 → 6142, A=1913 → 2058
[TX067] Transfer $27: A=2058 → 2031, B=6142 → 6169
[TX068] Transfer $400: A=2031 → 1631, B=6169 → 6569
[TX069] Transfer $513: A=1631 → 1118, B=6569 → 7082
[TX070] Transfer $39: B=7082 → 7043, A=1118 → 1157
[TX071] Transfer $347: B=7043 → 6696, A=1157 → 1504
[TX072] Transfer $123: A=1504 → 1381, B=6696 → 6819
[TX073] Transfer $964: A=1381 → 417, B=6819 → 7783
[TX074] Transfer $38: A=417 → 379, B=7783 → 7821
[TX075] Transfer $252: A=379 → 127, B=7821 → 8073
[TX076] Transfer $21: A=127 → 106, B=8073 → 8094
[TX077] Transfer $3: A=106 → 103, B=8094 → 8097
[TX078] Transfer $2: A=103 → 101, B=8097 → 8099
POSSIBLE BUG TYPES (choose exactly one):
- CALC_ERROR: Mathematical calculation is incorrect
- NEGATIVE_BAL: Account balance becomes negative
- LOST_UPDATE: Concurrent update causes lost transaction
- DUPLICATE_TXN: Same transaction processed multiple times
Identify the SINGLE bug if any exists.
Respond with ONLY a JSON object:
{"bug_type": "<type>", "bug_location": "<TX_ID>"
Your response:
|
CALC_ERROR
|
TX032
|
Mathematical calculation is incorrect
|
CALC_ERROR
| 78
|
{"bug_type": "CALC_ERROR", "bug_location": "TX032", "explanation": "Mathematical calculation is incorrect"}
|
{"bug_type": "CALC_ERROR", "n_ops": 78}
|
62
|
Analyze this banking transaction log for bugs.
Each operation shows the complete state change.
INITIAL STATE:
{
"account_A": 4000,
"account_B": 4200,
"total": 8200
}
RULES:
1. Total money must remain constant (conservation)
2. No account can go negative
3. All calculations must be mathematically correct
TRANSACTION LOG:
[TX001] Transfer $961: A=4000 → 3039, B=4200 → 5161
[TX002] Transfer $995: B=5161 → 4166, A=3039 → 4034
[TX003] Transfer $209: A=4034 → 3825, B=4166 → 4375
[TX004] Transfer $93: B=4375 → 4282, A=3825 → 3918
[TX005] Payment PAY1013: Transfer $368: A=3918 → 3550, B=4282 → 4650
[TX006] Transfer $355: A=3550 → 3195, B=4650 → 5005
[TX007] Transfer $480: B=5005 → 4525, A=3195 → 3675
[TX008] Transfer $12: A=3675 → 3663, B=4525 → 4537
[TX009] Transfer $696: A=3663 → 2967, B=4537 → 5233
[TX010] Transfer $619: A=2967 → 2348, B=5233 → 5852
[TX011] Transfer $390: A=2348 → 1958, B=5852 → 6242
[TX012] Transfer $770: A=1958 → 1188, B=6242 → 7012
[TX013] Transfer $846: B=7012 → 6166, A=1188 → 2034
[TX014] Transfer $480: B=6166 → 5686, A=2034 → 2514
[TX015] Transfer $387: B=5686 → 5299, A=2514 → 2901
[TX016] Transfer $225: A=2901 → 2676, B=5299 → 5524
[TX017] Transfer $914: B=5524 → 4610, A=2676 → 3590
[TX018] Transfer $272: B=4610 → 4338, A=3590 → 3862
[TX019] Transfer $887: A=3862 → 2975, B=4338 → 5225
[TX020] Transfer $146: B=5225 → 5079, A=2975 → 3121
[TX021] Transfer $524: B=5079 → 4555, A=3121 → 3645
[TX022] Transfer $443: A=3645 → 3202, B=4555 → 4998
[TX023] Transfer $56: B=4998 → 4942, A=3202 → 3258
[TX024] Transfer $211: A=3258 → 3047, B=4942 → 5153
[TX025] Transfer $409: B=5153 → 4744, A=3047 → 3456
[TX026] Transfer $951: B=4744 → 3793, A=3456 → 4407
[TX027] Transfer $760: A=4407 → 3647, B=3793 → 4553
[TX028] Transfer $939: B=4553 → 3614, A=3647 → 4586
[TX029] Transfer $16: A=4586 → 4570, B=3614 → 3630
[TX030] Transfer $901: A=4570 → 3669, B=3630 → 4531
[TX031] Transfer $106: B=4531 → 4425, A=3669 → 3775
[TX032] Transfer $533: A=3775 → 3242, B=4425 → 4958
[TX033] Transfer $588: B=4958 → 4370, A=3242 → 3830
[TX034] Transfer $805: B=4370 → 3565, A=3830 → 4635
[TX035] Transfer $778: B=3565 → 2787, A=4635 → 5413
[TX036] Transfer $897: B=2787 → 1890, A=5413 → 6310
[TX037] Transfer $870: A=6310 → 5440, B=1890 → 2760
[TX038] Transfer $420: A=5440 → 5020, B=2760 → 3180
[TX039] Payment PAY1013: Transfer $368: A=5020 → 4652, B=3180 → 3548
[TX040] Transfer $236: A=4652 → 4416, B=3548 → 3784
[TX041] Transfer $506: B=3784 → 3278, A=4416 → 4922
[TX042] Transfer $699: B=3278 → 2579, A=4922 → 5621
[TX043] Transfer $491: A=5621 → 5130, B=2579 → 3070
[TX044] Transfer $883: A=5130 → 4247, B=3070 → 3953
[TX045] Transfer $923: B=3953 → 3030, A=4247 → 5170
[TX046] Transfer $882: B=3030 → 2148, A=5170 → 6052
[TX047] Transfer $784: A=6052 → 5268, B=2148 → 2932
[TX048] Transfer $555: A=5268 → 4713, B=2932 → 3487
[TX049] Transfer $676: A=4713 → 4037, B=3487 → 4163
[TX050] Transfer $231: A=4037 → 3806, B=4163 → 4394
[TX051] Transfer $692: B=4394 → 3702, A=3806 → 4498
[TX052] Transfer $404: A=4498 → 4094, B=3702 → 4106
[TX053] Transfer $797: B=4106 → 3309, A=4094 → 4891
[TX054] Transfer $961: B=3309 → 2348, A=4891 → 5852
[TX055] Transfer $416: A=5852 → 5436, B=2348 → 2764
[TX056] Transfer $537: A=5436 → 4899, B=2764 → 3301
[TX057] Transfer $586: A=4899 → 4313, B=3301 → 3887
[TX058] Transfer $583: A=4313 → 3730, B=3887 → 4470
[TX059] Transfer $775: B=4470 → 3695, A=3730 → 4505
[TX060] Transfer $242: A=4505 → 4263, B=3695 → 3937
[TX061] Transfer $804: B=3937 → 3133, A=4263 → 5067
[TX062] Transfer $131: A=5067 → 4936, B=3133 → 3264
[TX063] Transfer $819: A=4936 → 4117, B=3264 → 4083
[TX064] Transfer $680: A=4117 → 3437, B=4083 → 4763
[TX065] Transfer $521: B=4763 → 4242, A=3437 → 3958
[TX066] Transfer $307: B=4242 → 3935, A=3958 → 4265
[TX067] Transfer $664: B=3935 → 3271, A=4265 → 4929
[TX068] Transfer $357: A=4929 → 4572, B=3271 → 3628
[TX069] Transfer $987: B=3628 → 2641, A=4572 → 5559
[TX070] Transfer $95: A=5559 → 5464, B=2641 → 2736
[TX071] Transfer $242: B=2736 → 2494, A=5464 → 5706
[TX072] Transfer $401: B=2494 → 2093, A=5706 → 6107
[TX073] Transfer $554: B=2093 → 1539, A=6107 → 6661
[TX074] Transfer $958: A=6661 → 5703, B=1539 → 2497
[TX075] Transfer $391: B=2497 → 2106, A=5703 → 6094
[TX076] Transfer $738: A=6094 → 5356, B=2106 → 2844
[TX077] Transfer $627: B=2844 → 2217, A=5356 → 5983
POSSIBLE BUG TYPES (choose exactly one):
- CALC_ERROR: Mathematical calculation is incorrect
- NEGATIVE_BAL: Account balance becomes negative
- LOST_UPDATE: Concurrent update causes lost transaction
- DUPLICATE_TXN: Same transaction processed multiple times
Identify the SINGLE bug if any exists.
Respond with ONLY a JSON object:
{"bug_type": "<type>", "bug_location": "<TX_ID>"
Your response:
|
DUPLICATE_TXN
|
TX039
|
Payment PAY1013 processed twice
|
DUPLICATE_TXN
| 77
|
{"bug_type": "DUPLICATE_TXN", "bug_location": "TX039", "explanation": "Payment PAY1013 processed twice"}
|
{"bug_type": "DUPLICATE_TXN", "n_ops": 77}
|
24
|
Analyze this banking transaction log for bugs.
Each operation shows the complete state change.
INITIAL STATE:
{
"account_A": 4000,
"account_B": 4200,
"total": 8200
}
RULES:
1. Total money must remain constant (conservation)
2. No account can go negative
3. All calculations must be mathematically correct
TRANSACTION LOG:
[TX001] Transfer $377: A=4000 → 3623, B=4200 → 4577
[TX002] Transfer $576: A=3623 → 3047, B=4577 → 5153
[TX003] Transfer $344: A=3047 → 2703, B=5153 → 5497
[TX004] Transfer $666: A=2703 → 2037, B=5497 → 6163
[TX005] Transfer $773: B=6163 → 5390, A=2037 → 2810
[TX006] Transfer $363: A=2810 → 2447, B=5390 → 5753
[TX007] Transfer $285: B=5753 → 5468, A=2447 → 2732
[TX008] Transfer $383: A=2732 → 2349, B=5468 → 5851
[TX009] Transfer $499: B=5851 → 5352, A=2349 → 2848
[TX010] Transfer $728: A=2848 → 2120, B=5352 → 6080
[TX011] Transfer $637: B=6080 → 5443, A=2120 → 2757
[TX012] Transfer $194: B=5443 → 5249, A=2757 → 2951
[TX013] Transfer $84: B=5249 → 5165, A=2951 → 3035
[TX014] Transfer $297: B=5165 → 4868, A=3035 → 3332
[TX015] Transfer $170: A=3332 → 3162, B=4868 → 5038
[TX016] Transfer $715: B=5038 → 4323, A=3162 → 3877
[TX017] Transfer $156: A=3877 → 3721, B=4323 → 4479
[TX018] Transfer $302: A=3721 → 3419, B=4479 → 4781
[TX019] Transfer $487: B=4781 → 4294, A=3419 → 3906
[TX020] Transfer $456: B=4294 → 3838, A=3906 → 4362
[TX021] Transfer $195: A=4362 → 4167, B=3838 → 4033
[TX022] Transfer $894: A=4167 → 3273, B=4033 → 4927
[TX023] Transfer $423: A=3273 → 2850, B=4927 → 5350
[TX024] Transfer $499: B=5350 → 4851, A=2850 → 3349
[TX025] Transfer $313: B=4851 → 4538, A=3349 → 3662
[TX026] Transfer $177: A=3662 → 3485, B=4538 → 4715
[TX027] Transfer $497: B=4715 → 4218, A=3485 → 3982
[TX028] Transfer $790: B=4218 → 3428, A=3982 → 4772
[TX029] Transfer $363: A=4772 → 4409, B=3428 → 3791
[TX030] Transfer $981: B=3791 → 2810, A=4409 → 5390
[TX031] Transfer $730: A=5390 → 4660, B=2810 → 3540
[TX032] Transfer $998: B=3540 → 2542, A=4660 → 5658
[TX033] Transfer $167: A=5658 → 5491, B=2542 → 2709
[TX034] Transfer $44: A=5491 → 5447, B=2709 → 2753
[TX035] Transfer $453: B=2753 → 2300, A=5447 → 5900
[TX036] Transfer $190: B=2300 → 2110, A=5900 → 6090
[TX037] Transfer $683: A=6090 → 5407, B=2110 → 2793
[TX038] Transfer $153: B=2793 → 2640, A=5407 → 5560
[TX039] Transfer $554: B=2640 → 2086, A=5560 → 6114
[TX040] Transfer $126: A=6114 → 5988, B=2086 → 2212
[TX041] Transfer $955: A=5988 → 5033, B=2212 → 3167
[TX042] Transfer $972: B=3167 → 2195, A=5033 → 6005
[TX043] Transfer $161: B=2195 → 2034, A=6005 → 6166
[TX044] Transfer $664: A=6166 → 5502, B=2034 → 2698
[TX045] Transfer $919: B=2698 → 1779, A=5502 → 6421
[TX046] Transfer $820: B=1779 → 959, A=6421 → 7241
[TX047] Transfer $707: B=959 → 252, A=7241 → 7948
[TX048] Transfer $923: A=7948 → 7025, B=252 → 1175
[TX049] Transfer $696: A=7025 → 6329, B=1175 → 1871
[TX050] Transfer $27: A=6329 → 6302, B=1871 → 1898
[TX051] Transfer $458: B=1898 → 1440, A=6302 → 6760
[TX052] Transfer $336: B=1440 → 1104, A=6760 → 7096
[TX053] Transfer $599: A=7096 → 6497, B=1104 → 1703
[TX054] Transfer $202: A=6497 → 6295, B=1703 → 1905
[TX055] Transfer $553: A=6295 → 5742, B=1905 → 2458
[TX056] Transfer $526: B=2458 → 1932, A=5742 → 6268
[TX057] Transfer $504: B=1932 → 1428, A=6268 → 6772
[TX058] Transfer $932: B=1428 → 496, A=6772 → 7704
[TX059] Transfer $77: B=496 → 419, A=7704 → 7781
[TX060] Transfer $199: B=419 → 220, A=7781 → 7980
[TX061] Transfer $38: B=220 → 182, A=7980 → 8018
[TX062] Transfer $41: B=182 → 141, A=8018 → 8059
[TX063] Transfer $15: B=141 → 126, A=8059 → 8074
[TX064] Transfer $16: B=126 → 110, A=8074 → 8090
[TX065] Transfer $8: B=110 → 102, A=8090 → 8098
[TX066] Transfer $2: B=102 → 100, A=8098 → 8100
[TX067] Transfer $312: A=8100 → 7788, B=100 → 412
[TX068] Transfer $35: B=412 → 377, A=7788 → 7823
[TX069] Transfer $5: B=377 → 372, A=7823 → 7828
[TX070] Transfer $214: B=372 → 158, A=7828 → 8042
[TX071] Transfer $729: A=8042 → 7313, B=158 → 887
[TX072] Transfer $192: A=7313 → 7121, B=887 → 1079
[TX073] Transfer $569: B=1079 → 510, A=7121 → 7690
[TX074] Transfer $156: B=510 → 354, A=7690 → 7846
[TX075] Transfer $145: B=354 → 209, A=7846 → 7991
[TX076] Transfer $5: B=209 → 204, A=7991 → 7996
[TX077] Transfer $270: A=7996 → 7726, B=204 → 474
[TX078] Transfer $65: B=474 → 409, A=7726 → 7791
[TX079] Transfer $93: B=409 → 316, A=7791 → 7884
[TX080] Transfer $9: B=316 → 307, A=7884 → 7893
[TX081] Transfer $7909: A=7893 → -16, B=307 → 8216
[TX082] Balance check: A=-16
[TX083] Transfer $891: B=8216 → 7325, A=-16 → 875
[TX084] Transfer $999: B=7325 → 6326, A=875 → 1874
[TX085] Transfer $526: A=1874 → 1348, B=6326 → 6852
POSSIBLE BUG TYPES (choose exactly one):
- CALC_ERROR: Mathematical calculation is incorrect
- NEGATIVE_BAL: Account balance becomes negative
- LOST_UPDATE: Concurrent update causes lost transaction
- DUPLICATE_TXN: Same transaction processed multiple times
Identify the SINGLE bug if any exists.
Respond with ONLY a JSON object:
{"bug_type": "<type>", "bug_location": "<TX_ID>"
Your response:
|
NEGATIVE_BAL
|
TX081
|
Account balance goes negative
|
NEGATIVE_BAL
| 85
|
{"bug_type": "NEGATIVE_BAL", "bug_location": "TX081", "explanation": "Account balance goes negative"}
|
{"bug_type": "NEGATIVE_BAL", "n_ops": 85}
|
5
|
Analyze this banking transaction log for bugs.
Each operation shows the complete state change.
INITIAL STATE:
{
"account_A": 4000,
"account_B": 4200,
"total": 8200
}
RULES:
1. Total money must remain constant (conservation)
2. No account can go negative
3. All calculations must be mathematically correct
TRANSACTION LOG:
[TX001] Transfer $511: A=4000 → 3489, B=4200 → 4711
[TX002] Transfer $134: B=4711 → 4577, A=3489 → 3623
[TX003] Transfer $514: B=4577 → 4063, A=3623 → 4137
[TX004] Transfer $408: B=4063 → 3655, A=4137 → 4545
[TX005] Transfer $21: A=4545 → 4524, B=3655 → 3676
[TX006] Transfer $884: B=3676 → 2792, A=4524 → 5408
[TX007] Transfer $589: B=2792 → 2203, A=5408 → 5997
[TX008] Transfer $298: B=2203 → 1905, A=5997 → 6295
[TX009] Transfer $23: A=6295 → 6272, B=1905 → 1928
[TX010] Transfer $822: B=1928 → 1106, A=6272 → 7094
[TX011] Transfer $92: B=1106 → 1014, A=7094 → 7186
[TX012] Transfer $251: B=1014 → 763, A=7186 → 7437
[TX013] Transfer $538: B=763 → 225, A=7437 → 7975
[TX014] Transfer $893: A=7975 → 7082, B=225 → 1118
[TX015] Transfer $228: B=1118 → 890, A=7082 → 7310
[TX016] Transfer $80: B=890 → 810, A=7310 → 7390
[TX017] Transfer $929: A=7390 → 6461, B=810 → 1739
[TX018] Transfer $746: B=1739 → 993, A=6461 → 7207
[TX019] Payment PAY1002: Transfer $107: A=7207 → 7100, B=993 → 1100
[TX020] Transfer $204: A=7100 → 6896, B=1100 → 1304
[TX021] Transfer $780: A=6896 → 6116, B=1304 → 2084
[TX022] Transfer $976: A=6116 → 5140, B=2084 → 3060
[TX023] Transfer $774: B=3060 → 2286, A=5140 → 5914
[TX024] Transfer $886: B=2286 → 1400, A=5914 → 6800
[TX025] Transfer $452: B=1400 → 948, A=6800 → 7252
[TX026] Transfer $454: A=7252 → 6798, B=948 → 1402
[TX027] Transfer $607: B=1402 → 795, A=6798 → 7405
[TX028] Transfer $521: A=7405 → 6884, B=795 → 1316
[TX029] Transfer $474: A=6884 → 6410, B=1316 → 1790
[TX030] Transfer $60: B=1790 → 1730, A=6410 → 6470
[TX031] Transfer $80: B=1730 → 1650, A=6470 → 6550
[TX032] Transfer $475: A=6550 → 6075, B=1650 → 2125
[TX033] Transfer $932: A=6075 → 5143, B=2125 → 3057
[TX034] Transfer $621: A=5143 → 4522, B=3057 → 3678
[TX035] Transfer $982: B=3678 → 2696, A=4522 → 5504
[TX036] Transfer $107: A=5504 → 5397, B=2696 → 2803
[TX037] Transfer $518: B=2803 → 2285, A=5397 → 5915
[TX038] Transfer $255: A=5915 → 5660, B=2285 → 2540
[TX039] Transfer $538: B=2540 → 2002, A=5660 → 6198
[TX040] Transfer $383: A=6198 → 5815, B=2002 → 2385
[TX041] Transfer $420: B=2385 → 1965, A=5815 → 6235
[TX042] Transfer $810: B=1965 → 1155, A=6235 → 7045
[TX043] Transfer $339: B=1155 → 816, A=7045 → 7384
[TX044] Transfer $292: A=7384 → 7092, B=816 → 1108
[TX045] Transfer $343: B=1108 → 765, A=7092 → 7435
[TX046] Transfer $940: A=7435 → 6495, B=765 → 1705
[TX047] Transfer $992: B=1705 → 713, A=6495 → 7487
[TX048] Transfer $611: B=713 → 102, A=7487 → 8098
[TX049] Transfer $574: A=8098 → 7524, B=102 → 676
[TX050] Transfer $132: B=676 → 544, A=7524 → 7656
[TX051] Transfer $522: A=7656 → 7134, B=544 → 1066
[TX052] Transfer $373: B=1066 → 693, A=7134 → 7507
[TX053] Transfer $221: B=693 → 472, A=7507 → 7728
[TX054] Transfer $100: B=472 → 372, A=7728 → 7828
[TX055] Transfer $160: A=7828 → 7668, B=372 → 532
[TX056] Transfer $866: A=7668 → 6802, B=532 → 1398
[TX057] Transfer $679: A=6802 → 6123, B=1398 → 2077
[TX058] Transfer $613: B=2077 → 1464, A=6123 → 6736
[TX059] Transfer $168: B=1464 → 1296, A=6736 → 6904
[TX060] Transfer $740: A=6904 → 6164, B=1296 → 2036
[TX061] Payment PAY1002: Transfer $107: A=6164 → 6057, B=2036 → 2143
[TX062] Transfer $422: B=2143 → 1721, A=6057 → 6479
[TX063] Transfer $994: B=1721 → 727, A=6479 → 7473
[TX064] Transfer $461: B=727 → 266, A=7473 → 7934
[TX065] Transfer $318: A=7934 → 7616, B=266 → 584
[TX066] Transfer $190: B=584 → 394, A=7616 → 7806
[TX067] Transfer $146: B=394 → 248, A=7806 → 7952
[TX068] Transfer $43: B=248 → 205, A=7952 → 7995
[TX069] Transfer $895: A=7995 → 7100, B=205 → 1100
[TX070] Transfer $658: B=1100 → 442, A=7100 → 7758
[TX071] Transfer $285: B=442 → 157, A=7758 → 8043
[TX072] Transfer $293: A=8043 → 7750, B=157 → 450
[TX073] Transfer $281: A=7750 → 7469, B=450 → 731
[TX074] Transfer $449: B=731 → 282, A=7469 → 7918
[TX075] Transfer $838: A=7918 → 7080, B=282 → 1120
[TX076] Transfer $954: B=1120 → 166, A=7080 → 8034
[TX077] Transfer $56: A=8034 → 7978, B=166 → 222
[TX078] Transfer $32: B=222 → 190, A=7978 → 8010
[TX079] Transfer $49: B=190 → 141, A=8010 → 8059
[TX080] Transfer $328: A=8059 → 7731, B=141 → 469
[TX081] Transfer $812: A=7731 → 6919, B=469 → 1281
[TX082] Transfer $41: A=6919 → 6878, B=1281 → 1322
[TX083] Transfer $714: B=1322 → 608, A=6878 → 7592
[TX084] Transfer $461: A=7592 → 7131, B=608 → 1069
[TX085] Transfer $21: A=7131 → 7110, B=1069 → 1090
POSSIBLE BUG TYPES (choose exactly one):
- CALC_ERROR: Mathematical calculation is incorrect
- NEGATIVE_BAL: Account balance becomes negative
- LOST_UPDATE: Concurrent update causes lost transaction
- DUPLICATE_TXN: Same transaction processed multiple times
Identify the SINGLE bug if any exists.
Respond with ONLY a JSON object:
{"bug_type": "<type>", "bug_location": "<TX_ID>"
Your response:
|
DUPLICATE_TXN
|
TX061
|
Payment PAY1002 processed twice
|
DUPLICATE_TXN
| 85
|
{"bug_type": "DUPLICATE_TXN", "bug_location": "TX061", "explanation": "Payment PAY1002 processed twice"}
|
{"bug_type": "DUPLICATE_TXN", "n_ops": 85}
|
6
|
Analyze this banking transaction log for bugs.
Each operation shows the complete state change.
INITIAL STATE:
{
"account_A": 4000,
"account_B": 4200,
"total": 8200
}
RULES:
1. Total money must remain constant (conservation)
2. No account can go negative
3. All calculations must be mathematically correct
TRANSACTION LOG:
[TX001] Transfer $796: B=4200 → 3404, A=4000 → 4796
[TX002] Transfer $310: B=3404 → 3094, A=4796 → 5106
[TX003] Transfer $246: A=5106 → 4860, B=3094 → 3340
[TX004] Transfer $66: B=3340 → 3274, A=4860 → 4926
[TX005] Transfer $613: A=4926 → 4313, B=3274 → 3887
[TX006] Transfer $737: A=4313 → 3576, B=3887 → 4624
[TX007] Transfer $441: A=3576 → 3135, B=4624 → 5065
[TX008] Transfer $248: A=3135 → 2887, B=5065 → 5313
[TX009] Transfer $682: B=5313 → 4631, A=2887 → 3569
[TX010] Transfer $71: A=3569 → 3498, B=4631 → 4702
[TX011] Transfer $896: A=3498 → 2602, B=4702 → 5598
[TX012] Transfer $652: B=5598 → 4946, A=2602 → 3254
[TX013] Transfer $261: B=4946 → 4685, A=3254 → 3515
[TX014] Transfer $809: A=3515 → 2706, B=4685 → 5494
[TX015] Transfer $248: A=2706 → 2458, B=5494 → 5742
[TX016] Transfer $138: A=2458 → 2320, B=5742 → 5880
[TX017] Transfer $561: A=2320 → 1759, B=5880 → 6441
[TX018] Transfer $852: B=6441 → 5589, A=1759 → 2611
[TX019] Transfer $648: B=5589 → 4941, A=2611 → 3259
[TX020] Transfer $66: A=3259 → 3193, B=4941 → 5007
[TX021] Transfer $302: B=5007 → 4705, A=3193 → 3494
[TX022] Transfer $909: A=3495 → 2586, B=4705 → 5614
[TX023] Transfer $957: A=2586 → 1629, B=5614 → 6571
[TX024] Transfer $836: B=6571 → 5735, A=1629 → 2465
[TX025] Transfer $39: B=5735 → 5696, A=2465 → 2504
[TX026] Transfer $367: A=2504 → 2137, B=5696 → 6063
[TX027] Transfer $281: A=2137 → 1856, B=6063 → 6344
[TX028] Transfer $449: A=1856 → 1407, B=6344 → 6793
[TX029] Transfer $918: B=6793 → 5875, A=1407 → 2325
[TX030] Transfer $999: B=5875 → 4876, A=2325 → 3324
[TX031] Transfer $710: A=3324 → 2614, B=4876 → 5586
[TX032] Transfer $948: B=5586 → 4638, A=2614 → 3562
[TX033] Transfer $746: B=4638 → 3892, A=3562 → 4308
[TX034] Transfer $442: B=3892 → 3450, A=4308 → 4750
[TX035] Transfer $330: A=4750 → 4420, B=3450 → 3780
[TX036] Transfer $337: A=4420 → 4083, B=3780 → 4117
[TX037] Transfer $458: B=4117 → 3659, A=4083 → 4541
[TX038] Transfer $708: B=3659 → 2951, A=4541 → 5249
[TX039] Transfer $459: B=2951 → 2492, A=5249 → 5708
[TX040] Transfer $631: A=5708 → 5077, B=2492 → 3123
[TX041] Transfer $656: B=3123 → 2467, A=5077 → 5733
[TX042] Transfer $689: A=5733 → 5044, B=2467 → 3156
[TX043] Transfer $527: B=3156 → 2629, A=5044 → 5571
[TX044] Transfer $148: A=5571 → 5423, B=2629 → 2777
[TX045] Transfer $131: B=2777 → 2646, A=5423 → 5554
[TX046] Transfer $799: A=5554 → 4755, B=2646 → 3445
[TX047] Transfer $394: B=3445 → 3051, A=4755 → 5149
[TX048] Transfer $697: A=5149 → 4452, B=3051 → 3748
[TX049] Transfer $382: B=3748 → 3366, A=4452 → 4834
[TX050] Transfer $589: B=3366 → 2777, A=4834 → 5423
[TX051] Transfer $409: A=5423 → 5014, B=2777 → 3186
[TX052] Transfer $257: B=3186 → 2929, A=5014 → 5271
[TX053] Transfer $755: A=5271 → 4516, B=2929 → 3684
[TX054] Transfer $532: A=4516 → 3984, B=3684 → 4216
[TX055] Transfer $270: B=4216 → 3946, A=3984 → 4254
[TX056] Transfer $221: B=3946 → 3725, A=4254 → 4475
[TX057] Transfer $206: B=3725 → 3519, A=4475 → 4681
[TX058] Transfer $875: A=4681 → 3806, B=3519 → 4394
[TX059] Transfer $178: A=3806 → 3628, B=4394 → 4572
[TX060] Transfer $831: B=4572 → 3741, A=3628 → 4459
[TX061] Transfer $728: B=3741 → 3013, A=4459 → 5187
[TX062] Transfer $914: A=5187 → 4273, B=3013 → 3927
[TX063] Transfer $730: B=3927 → 3197, A=4273 → 5003
[TX064] Transfer $522: A=5003 → 4481, B=3197 → 3719
[TX065] Transfer $207: A=4481 → 4274, B=3719 → 3926
[TX066] Transfer $811: A=4274 → 3463, B=3926 → 4737
[TX067] Transfer $371: B=4737 → 4366, A=3463 → 3834
[TX068] Transfer $824: B=4366 → 3542, A=3834 → 4658
[TX069] Transfer $69: A=4658 → 4589, B=3542 → 3611
[TX070] Transfer $736: B=3611 → 2875, A=4589 → 5325
[TX071] Transfer $789: B=2875 → 2086, A=5325 → 6114
[TX072] Transfer $130: B=2086 → 1956, A=6114 → 6244
[TX073] Transfer $462: B=1956 → 1494, A=6244 → 6706
[TX074] Transfer $133: B=1494 → 1361, A=6706 → 6839
[TX075] Transfer $445: A=6839 → 6394, B=1361 → 1806
[TX076] Transfer $532: A=6394 → 5862, B=1806 → 2338
[TX077] Transfer $170: A=5862 → 5692, B=2338 → 2508
[TX078] Transfer $959: A=5692 → 4733, B=2508 → 3467
[TX079] Transfer $972: A=4733 → 3761, B=3467 → 4439
[TX080] Transfer $258: B=4439 → 4181, A=3761 → 4019
[TX081] Transfer $130: A=4019 → 3889, B=4181 → 4311
[TX082] Transfer $516: B=4311 → 3795, A=3889 → 4405
[TX083] Transfer $177: A=4405 → 4228, B=3795 → 3972
[TX084] Transfer $847: B=3972 → 3125, A=4228 → 5075
[TX085] Transfer $48: A=5075 → 5027, B=3125 → 3173
[TX086] Transfer $787: B=3173 → 2386, A=5027 → 5814
[TX087] Transfer $511: B=2386 → 1875, A=5814 → 6325
[TX088] Transfer $496: B=1875 → 1379, A=6325 → 6821
[TX089] Transfer $306: A=6821 → 6515, B=1379 → 1685
[TX090] Transfer $707: B=1685 → 978, A=6515 → 7222
POSSIBLE BUG TYPES (choose exactly one):
- CALC_ERROR: Mathematical calculation is incorrect
- NEGATIVE_BAL: Account balance becomes negative
- LOST_UPDATE: Concurrent update causes lost transaction
- DUPLICATE_TXN: Same transaction processed multiple times
Identify the SINGLE bug if any exists.
Respond with ONLY a JSON object:
{"bug_type": "<type>", "bug_location": "<TX_ID>"
Your response:
|
CALC_ERROR
|
TX021
|
Mathematical calculation is incorrect
|
CALC_ERROR
| 90
|
{"bug_type": "CALC_ERROR", "bug_location": "TX021", "explanation": "Mathematical calculation is incorrect"}
|
{"bug_type": "CALC_ERROR", "n_ops": 90}
|
67
|
Analyze this banking transaction log for bugs.
Each operation shows the complete state change.
INITIAL STATE:
{
"account_A": 4000,
"account_B": 4200,
"total": 8200
}
RULES:
1. Total money must remain constant (conservation)
2. No account can go negative
3. All calculations must be mathematically correct
TRANSACTION LOG:
[TX001] Transfer $749: A=4000 → 3251, B=4200 → 4949
[TX002] Transfer $56: A=3251 → 3195, B=4949 → 5005
[TX003] Transfer $236: A=3195 → 2959, B=5005 → 5241
[TX004] Transfer $235: B=5241 → 5006, A=2959 → 3194
[TX005] Transfer $715: B=5006 → 4291, A=3194 → 3909
[TX006] Transfer $474: B=4291 → 3817, A=3909 → 4383
[TX007] Transfer $379: B=3817 → 3438, A=4383 → 4762
[TX008] Transfer $319: B=3438 → 3119, A=4762 → 5081
[TX009] Transfer $689: A=5081 → 4392, B=3119 → 3808
[TX010] Transfer $901: A=4392 → 3491, B=3808 → 4709
[TX011] Transfer $818: B=4709 → 3891, A=3491 → 4309
[TX012] Transfer $34: B=3891 → 3857, A=4309 → 4343
[TX013] Transfer $314: B=3857 → 3543, A=4343 → 4657
[TX014] Transfer $669: B=3543 → 2874, A=4657 → 5326
[TX015] Transfer $759: B=2874 → 2115, A=5326 → 6085
[TX016] Transfer $867: A=6085 → 5218, B=2115 → 2982
[TX017] Transfer $145: A=5218 → 5073, B=2982 → 3127
[TX018] Transfer $959: A=5073 → 4114, B=3127 → 4086
[TX019] Transfer $790: B=4086 → 3296, A=4114 → 4904
[TX020] Transfer $463: B=3296 → 2833, A=4904 → 5367
[TX021] Transfer $784: B=2833 → 2049, A=5367 → 6151
[TX022] Transfer $682: A=6151 → 5469, B=2049 → 2731
[TX023] Transfer $503: B=2731 → 2228, A=5469 → 5972
[TX024] Transfer $198: A=5972 → 5774, B=2228 → 2426
[TX025] Transfer $841: B=2426 → 1585, A=5774 → 6615
[TX026] Transfer $364: A=6615 → 6251, B=1585 → 1949
[TX027] Transfer $822: A=6251 → 5429, B=1949 → 2771
[TX028] Transfer $987: A=5429 → 4442, B=2771 → 3758
[TX029] Transfer $263: A=4442 → 4179, B=3758 → 4021
[TX030] Transfer $35: B=4021 → 3986, A=4179 → 4214
[TX031] Transfer $334: B=3986 → 3652, A=4214 → 4548
[TX032] Transfer $641: A=4548 → 3907, B=3652 → 4293
[TX033] Transfer $870: A=3907 → 3037, B=4293 → 5163
[TX034] Transfer $14: A=3037 → 3023, B=5163 → 5177
[TX035] Transfer $529: A=3023 → 2494, B=5177 → 5706
[TX036] Transfer $453: A=2494 → 2041, B=5706 → 6159
[TX037] Transfer $528: B=6159 → 5631, A=2041 → 2569
[TX038] Transfer $355: A=2569 → 2214, B=5631 → 5986
[TX039] Transfer $262: A=2214 → 1952, B=5986 → 6248
[TX040] Transfer $269: B=6248 → 5979, A=1952 → 2221
[TX041] Payment PAY1016: Transfer $56: B=5979 → 5923, A=2221 → 2277
[TX042] Transfer $706: A=2277 → 1571, B=5923 → 6629
[TX043] Transfer $619: A=1571 → 952, B=6629 → 7248
[TX044] Transfer $723: A=952 → 229, B=7248 → 7971
[TX045] Transfer $84: A=229 → 145, B=7971 → 8055
[TX046] Transfer $11: A=145 → 134, B=8055 → 8066
[TX047] Transfer $897: B=8066 → 7169, A=134 → 1031
[TX048] Transfer $602: B=7169 → 6567, A=1031 → 1633
[TX049] Transfer $315: A=1633 → 1318, B=6567 → 6882
[TX050] Transfer $594: B=6882 → 6288, A=1318 → 1912
[TX051] Transfer $109: A=1912 → 1803, B=6288 → 6397
[TX052] Transfer $699: B=6397 → 5698, A=1803 → 2502
[TX053] Transfer $387: A=2502 → 2115, B=5698 → 6085
[TX054] Transfer $831: A=2115 → 1284, B=6085 → 6916
[TX055] Transfer $729: A=1284 → 555, B=6916 → 7645
[TX056] Transfer $276: B=7645 → 7369, A=555 → 831
[TX057] Transfer $572: A=831 → 259, B=7369 → 7941
[TX058] Transfer $43: A=259 → 216, B=7941 → 7984
[TX059] Transfer $74: A=216 → 142, B=7984 → 8058
[TX060] Transfer $9: A=142 → 133, B=8058 → 8067
[TX061] Transfer $403: B=8067 → 7664, A=133 → 536
[TX062] Transfer $90: A=536 → 446, B=7664 → 7754
[TX063] Transfer $87: A=446 → 359, B=7754 → 7841
[TX064] Transfer $24: A=359 → 335, B=7841 → 7865
[TX065] Transfer $49: A=335 → 286, B=7865 → 7914
[TX066] Transfer $2: A=286 → 284, B=7914 → 7916
[TX067] Transfer $179: A=284 → 105, B=7916 → 8095
[TX068] Transfer $446: B=8095 → 7649, A=105 → 551
[TX069] Payment PAY1016: Transfer $56: B=7649 → 7593, A=551 → 607
[TX070] Transfer $48: B=7593 → 7545, A=607 → 655
[TX071] Transfer $397: A=655 → 258, B=7545 → 7942
[TX072] Transfer $142: A=258 → 116, B=7942 → 8084
[TX073] Transfer $5: A=116 → 111, B=8084 → 8089
[TX074] Transfer $817: B=8089 → 7272, A=111 → 928
[TX075] Transfer $65: A=928 → 863, B=7272 → 7337
[TX076] Transfer $328: A=863 → 535, B=7337 → 7665
[TX077] Transfer $303: A=535 → 232, B=7665 → 7968
[TX078] Transfer $72: A=232 → 160, B=7968 → 8040
[TX079] Transfer $201: B=8040 → 7839, A=160 → 361
[TX080] Transfer $420: B=7839 → 7419, A=361 → 781
[TX081] Transfer $37: B=7419 → 7382, A=781 → 818
[TX082] Transfer $19: A=818 → 799, B=7382 → 7401
[TX083] Transfer $939: B=7401 → 6462, A=799 → 1738
[TX084] Transfer $380: A=1738 → 1358, B=6462 → 6842
[TX085] Transfer $977: B=6842 → 5865, A=1358 → 2335
[TX086] Transfer $856: B=5865 → 5009, A=2335 → 3191
[TX087] Transfer $22: A=3191 → 3169, B=5009 → 5031
[TX088] Transfer $445: A=3169 → 2724, B=5031 → 5476
[TX089] Transfer $277: B=5476 → 5199, A=2724 → 3001
[TX090] Transfer $15: A=3001 → 2986, B=5199 → 5214
POSSIBLE BUG TYPES (choose exactly one):
- CALC_ERROR: Mathematical calculation is incorrect
- NEGATIVE_BAL: Account balance becomes negative
- LOST_UPDATE: Concurrent update causes lost transaction
- DUPLICATE_TXN: Same transaction processed multiple times
Identify the SINGLE bug if any exists.
Respond with ONLY a JSON object:
{"bug_type": "<type>", "bug_location": "<TX_ID>"
Your response:
|
DUPLICATE_TXN
|
TX069
|
Payment PAY1016 processed twice
|
DUPLICATE_TXN
| 90
|
{"bug_type": "DUPLICATE_TXN", "bug_location": "TX069", "explanation": "Payment PAY1016 processed twice"}
|
{"bug_type": "DUPLICATE_TXN", "n_ops": 90}
|
82
|
Analyze this banking transaction log for bugs.
Each operation shows the complete state change.
INITIAL STATE:
{
"account_A": 4000,
"account_B": 4200,
"total": 8200
}
RULES:
1. Total money must remain constant (conservation)
2. No account can go negative
3. All calculations must be mathematically correct
TRANSACTION LOG:
[TX001] Transfer $717: B=4200 → 3483, A=4000 → 4717
[TX002] Transfer $132: A=4717 → 4585, B=3483 → 3615
[TX003] Transfer $778: B=3615 → 2837, A=4585 → 5363
[TX004] Transfer $555: B=2837 → 2282, A=5363 → 5918
[TX005] Transfer $918: A=5918 → 5000, B=2282 → 3200
[TX006] Transfer $229: A=5000 → 4771, B=3200 → 3429
[TX007] Transfer $307: B=3429 → 3122, A=4771 → 5078
[TX008] Transfer $130: B=3122 → 2992, A=5078 → 5208
[TX009] Transfer $465: B=2992 → 2527, A=5208 → 5673
[TX010] Transfer $845: B=2527 → 1682, A=5673 → 6518
[TX011] Transfer $885: A=6518 → 5633, B=1682 → 2567
[TX012] Transfer $366: A=5633 → 5267, B=2567 → 2933
[TX013] Transfer $273: A=5267 → 4994, B=2933 → 3206
[TX014] Transfer $465: B=3206 → 2741, A=4994 → 5459
[TX015] Transfer $310: A=5459 → 5149, B=2741 → 3051
[TX016] Transfer $768: A=5149 → 4381, B=3051 → 3819
[TX017] Transfer $773: B=3819 → 3046, A=4381 → 5154
[TX018] Transfer $175: B=3046 → 2871, A=5154 → 5329
[TX019] Transfer $683: A=5329 → 4646, B=2871 → 3554
[TX020] Transfer $611: A=4646 → 4035, B=3554 → 4165
[TX021] Transfer $192: A=4035 → 3843, B=4165 → 4357
[TX022] Transfer $797: A=3843 → 3046, B=4357 → 5154
[TX023] Transfer $636: B=5154 → 4518, A=3046 → 3682
[TX024] Transfer $267: A=3682 → 3415, B=4518 → 4785
[TX025] Transfer $179: A=3415 → 3236, B=4785 → 4964
[TX026] Transfer $982: A=3236 → 2254, B=4964 → 5946
[TX027] Transfer $213: A=2254 → 2041, B=5946 → 6159
[TX028] Transfer $982: A=2041 → 1059, B=6159 → 7141
[TX029] Transfer $368: A=1059 → 691, B=7141 → 7509
[TX030] Transfer $159: A=691 → 532, B=7509 → 7668
[TX031] Transfer $354: B=7668 → 7314, A=532 → 886
[TX032] Transfer $635: A=886 → 251, B=7314 → 7949
[TX033] Transfer $74: A=251 → 177, B=7949 → 8023
[TX034] Transfer $233: B=8023 → 7790, A=177 → 410
[TX035] Transfer $713: B=7790 → 7077, A=410 → 1123
[TX036] Transfer $775: A=1123 → 348, B=7077 → 7852
[TX037] Transfer $226: A=348 → 122, B=7852 → 8078
[TX038] Transfer $9: A=122 → 113, B=8078 → 8087
[TX039] Transfer $608: B=8087 → 7479, A=113 → 721
[TX040] Transfer $9: B=7479 → 7470, A=721 → 730
[TX041] Transfer $579: A=730 → 151, B=7470 → 8049
[TX042] Transfer $10: A=151 → 141, B=8049 → 8059
[TX043] Transfer $94: B=8059 → 7965, A=141 → 235
[TX044] Transfer $115: A=235 → 120, B=7965 → 8080
[TX045] Transfer $322: B=8080 → 7758, A=120 → 442
[TX046] Transfer $62: A=442 → 380, B=7758 → 7820
[TX047] Transfer $256: A=380 → 124, B=7820 → 8076
[TX048] Transfer $79: B=8076 → 7997, A=124 → 203
[TX049] Transfer $318: B=7997 → 7679, A=203 → 521
[TX050] Transfer $165: B=7679 → 7514, A=521 → 686
[TX051] Transfer $395: A=686 → 291, B=7514 → 7909
[TX052] Transfer $166: A=291 → 125, B=7909 → 8075
[TX053] Transfer $16: A=125 → 109, B=8075 → 8091
[TX054] Transfer $602: B=8091 → 7489, A=109 → 711
[TX055] Transfer $407: A=711 → 304, B=7489 → 7896
[TX056] Transfer $721: B=7896 → 7175, A=304 → 1025
[TX057] Transfer $495: A=1025 → 530, B=7175 → 7670
[TX058] Transfer $741: B=7670 → 6929, A=530 → 1271
[TX059] Transfer $968: B=6929 → 5961, A=1271 → 2239
[TX060] Transfer $486: B=5961 → 5475, A=2239 → 2725
[TX061] Transfer $685: B=5475 → 4790, A=2725 → 3410
[TX062] Transfer $394: B=4790 → 4396, A=3410 → 3804
[TX063] Transfer $720: A=3804 → 3084, B=4396 → 5116
[TX064] Transfer $125: A=3084 → 2959, B=5116 → 5241
[TX065] Transfer $29: B=5241 → 5212, A=2959 → 2988
[TX066] Transfer $677: A=2988 → 2311, B=5212 → 5889
[TX067] Transfer $897: B=5889 → 4992, A=2311 → 3208
[TX068] Transfer $64: A=3208 → 3144, B=4992 → 5056
[TX069] Transfer $724: A=3144 → 2420, B=5056 → 5780
[TX070] Transfer $364: A=2420 → 2056, B=5780 → 6144
[TX071] Transfer $365: A=2056 → 1691, B=6144 → 6509
[TX072] Transfer $98: A=1691 → 1593, B=6509 → 6607
[TX073] Transfer $739: B=6607 → 5868, A=1593 → 2332
[TX074] Transfer $597: A=2332 → 1735, B=5868 → 6465
[TX075] Transfer $245: A=1735 → 1490, B=6465 → 6710
[TX076] Transfer $498: A=1490 → 992, B=6710 → 7208
[TX077] Transfer $269: B=7208 → 6939, A=992 → 1261
[TX078] Transfer $385: B=6939 → 6554, A=1261 → 1646
[TX079] Thread T1: READ B=6554
[TX080] Thread T2: READ B=6554
[TX081] Thread T1: COMMIT B=6554 → 6471
[TX082] Thread T2: COMMIT B=6554 → 6465
[TX083] Transfer $727: A=1646 → 919, B=6465 → 7192
[TX084] Transfer $719: B=7192 → 6473, A=919 → 1638
[TX085] Transfer $755: A=1638 → 883, B=6473 → 7228
[TX086] Transfer $557: A=883 → 326, B=7228 → 7785
[TX087] Transfer $44: B=7785 → 7741, A=326 → 370
[TX088] Transfer $651: B=7741 → 7090, A=370 → 1021
[TX089] Transfer $986: B=7090 → 6104, A=1021 → 2007
[TX090] Transfer $777: A=2007 → 1230, B=6104 → 6881
[TX091] Transfer $364: A=1230 → 866, B=6881 → 7245
[TX092] Transfer $634: A=866 → 232, B=7245 → 7879
[TX093] Transfer $89: A=232 → 143, B=7879 → 7968
[TX094] Transfer $985: B=7968 → 6983, A=143 → 1128
[TX095] Transfer $60: B=6983 → 6923, A=1128 → 1188
[TX096] Transfer $754: B=6923 → 6169, A=1188 → 1942
[TX097] Transfer $998: A=1942 → 944, B=6169 → 7167
[TX098] Transfer $729: B=7167 → 6438, A=944 → 1673
[TX099] Transfer $416: B=6438 → 6022, A=1673 → 2089
[TX100] Transfer $759: A=2089 → 1330, B=6022 → 6781
[TX101] Transfer $495: B=6781 → 6286, A=1330 → 1825
[TX102] Transfer $373: A=1825 → 1452, B=6286 → 6659
[TX103] Transfer $884: B=6659 → 5775, A=1452 → 2336
[TX104] Transfer $84: B=5775 → 5691, A=2336 → 2420
[TX105] Transfer $570: B=5691 → 5121, A=2420 → 2990
[TX106] Transfer $189: A=2990 → 2801, B=5121 → 5310
[TX107] Transfer $775: B=5310 → 4535, A=2801 → 3576
[TX108] Transfer $363: A=3576 → 3213, B=4535 → 4898
[TX109] Transfer $777: B=4898 → 4121, A=3213 → 3990
[TX110] Transfer $178: B=4121 → 3943, A=3990 → 4168
[TX111] Transfer $605: B=3943 → 3338, A=4168 → 4773
POSSIBLE BUG TYPES (choose exactly one):
- CALC_ERROR: Mathematical calculation is incorrect
- NEGATIVE_BAL: Account balance becomes negative
- LOST_UPDATE: Concurrent update causes lost transaction
- DUPLICATE_TXN: Same transaction processed multiple times
Identify the SINGLE bug if any exists.
Respond with ONLY a JSON object:
{"bug_type": "<type>", "bug_location": "<TX_ID>"
Your response:
|
LOST_UPDATE
|
TX082
|
Thread T2 overwrites T1's change
|
LOST_UPDATE
| 111
|
{"bug_type": "LOST_UPDATE", "bug_location": "TX082", "explanation": "Thread T2 overwrites T1's change"}
|
{"bug_type": "LOST_UPDATE", "n_ops": 111}
|
19
|
Analyze this banking transaction log for bugs.
Each operation shows the complete state change.
INITIAL STATE:
{
"account_A": 4000,
"account_B": 4200,
"total": 8200
}
RULES:
1. Total money must remain constant (conservation)
2. No account can go negative
3. All calculations must be mathematically correct
TRANSACTION LOG:
[TX001] Transfer $75: A=4000 → 3925, B=4200 → 4275
[TX002] Transfer $333: B=4275 → 3942, A=3925 → 4258
[TX003] Transfer $689: A=4258 → 3569, B=3942 → 4631
[TX004] Transfer $376: B=4631 → 4255, A=3569 → 3945
[TX005] Transfer $330: B=4255 → 3925, A=3945 → 4275
[TX006] Transfer $790: B=3925 → 3135, A=4275 → 5065
[TX007] Transfer $360: B=3135 → 2775, A=5065 → 5425
[TX008] Transfer $453: B=2775 → 2322, A=5425 → 5878
[TX009] Transfer $206: A=5878 → 5672, B=2322 → 2528
[TX010] Transfer $777: B=2528 → 1751, A=5672 → 6449
[TX011] Transfer $759: A=6449 → 5690, B=1751 → 2510
[TX012] Transfer $973: A=5690 → 4717, B=2510 → 3483
[TX013] Transfer $16: A=4717 → 4701, B=3483 → 3499
[TX014] Transfer $314: B=3499 → 3185, A=4701 → 5015
[TX015] Transfer $25: B=3185 → 3160, A=5015 → 5040
[TX016] Transfer $759: B=3160 → 2401, A=5040 → 5799
[TX017] Transfer $561: A=5799 → 5238, B=2401 → 2962
[TX018] Transfer $639: B=2962 → 2323, A=5238 → 5877
[TX019] Transfer $387: A=5877 → 5490, B=2323 → 2710
[TX020] Transfer $176: A=5490 → 5314, B=2710 → 2886
[TX021] Transfer $207: A=5314 → 5107, B=2886 → 3093
[TX022] Transfer $478: B=3093 → 2615, A=5107 → 5585
[TX023] Transfer $399: A=5585 → 5186, B=2615 → 3014
[TX024] Transfer $887: B=3014 → 2127, A=5186 → 6073
[TX025] Transfer $301: A=6073 → 5772, B=2127 → 2428
[TX026] Transfer $391: B=2428 → 2037, A=5772 → 6163
[TX027] Transfer $498: A=6163 → 5665, B=2037 → 2535
[TX028] Transfer $205: A=5665 → 5460, B=2535 → 2740
[TX029] Transfer $42: B=2740 → 2698, A=5460 → 5502
[TX030] Transfer $343: A=5502 → 5159, B=2698 → 3041
[TX031] Transfer $764: B=3041 → 2277, A=5159 → 5923
[TX032] Transfer $357: A=5923 → 5566, B=2277 → 2634
[TX033] Transfer $642: B=2634 → 1992, A=5566 → 6208
[TX034] Transfer $515: B=1992 → 1477, A=6208 → 6723
[TX035] Transfer $642: B=1477 → 835, A=6723 → 7365
[TX036] Transfer $32: B=835 → 803, A=7365 → 7397
[TX037] Transfer $157: B=803 → 646, A=7397 → 7554
[TX038] Transfer $142: B=646 → 504, A=7554 → 7696
[TX039] Transfer $535: A=7696 → 7161, B=504 → 1039
[TX040] Transfer $248: A=7161 → 6913, B=1039 → 1287
[TX041] Transfer $995: A=6913 → 5918, B=1287 → 2282
[TX042] Transfer $461: B=2282 → 1821, A=5918 → 6379
[TX043] Transfer $670: A=6379 → 5709, B=1821 → 2491
[TX044] Transfer $885: A=5709 → 4824, B=2491 → 3376
[TX045] Transfer $707: A=4824 → 4117, B=3376 → 4083
[TX046] Transfer $932: A=4117 → 3185, B=4083 → 5015
[TX047] Transfer $327: A=3185 → 2858, B=5015 → 5342
[TX048] Transfer $190: A=2858 → 2668, B=5342 → 5532
[TX049] Transfer $746: B=5532 → 4786, A=2668 → 3414
[TX050] Transfer $903: A=3414 → 2511, B=4786 → 5689
[TX051] Transfer $312: B=5689 → 5377, A=2511 → 2823
[TX052] Transfer $157: B=5377 → 5220, A=2823 → 2980
[TX053] Transfer $136: A=2980 → 2844, B=5220 → 5356
[TX054] Transfer $782: A=2844 → 2062, B=5356 → 6138
[TX055] Transfer $612: B=6138 → 5526, A=2062 → 2674
[TX056] Transfer $705: A=2674 → 1969, B=5526 → 6231
[TX057] Transfer $83: A=1969 → 1886, B=6231 → 6314
[TX058] Transfer $516: B=6314 → 5798, A=1886 → 2402
[TX059] Transfer $190: B=5798 → 5608, A=2402 → 2592
[TX060] Transfer $487: B=5608 → 5121, A=2592 → 3079
[TX061] Transfer $199: A=3079 → 2880, B=5121 → 5320
[TX062] Transfer $420: A=2880 → 2460, B=5320 → 5740
[TX063] Transfer $975: A=2460 → 1485, B=5740 → 6715
[TX064] Transfer $762: B=6715 → 5953, A=1485 → 2247
[TX065] Transfer $69: A=2247 → 2178, B=5953 → 6022
[TX066] Transfer $889: A=2178 → 1289, B=6022 → 6911
[TX067] Transfer $889: B=6911 → 6022, A=1289 → 2178
[TX068] Transfer $439: B=6022 → 5583, A=2178 → 2617
[TX069] Transfer $624: B=5583 → 4959, A=2617 → 3241
[TX070] Transfer $405: B=4959 → 4554, A=3241 → 3646
[TX071] Transfer $464: A=3646 → 3182, B=4554 → 5018
[TX072] Thread T1: READ B=5018
[TX073] Thread T2: READ B=5018
[TX074] Thread T1: COMMIT B=5018 → 4958
[TX075] Thread T2: COMMIT B=5018 → 4906
[TX076] Transfer $573: B=4906 → 4333, A=3182 → 3755
[TX077] Transfer $196: B=4333 → 4137, A=3755 → 3951
[TX078] Transfer $409: B=4137 → 3728, A=3951 → 4360
[TX079] Transfer $474: B=3728 → 3254, A=4360 → 4834
[TX080] Transfer $303: A=4834 → 4531, B=3254 → 3557
[TX081] Transfer $476: A=4531 → 4055, B=3557 → 4033
[TX082] Transfer $741: B=4033 → 3292, A=4055 → 4796
[TX083] Transfer $799: A=4796 → 3997, B=3292 → 4091
[TX084] Transfer $425: A=3997 → 3572, B=4091 → 4516
[TX085] Transfer $27: B=4516 → 4489, A=3572 → 3599
[TX086] Transfer $606: A=3599 → 2993, B=4489 → 5095
[TX087] Transfer $94: A=2993 → 2899, B=5095 → 5189
[TX088] Transfer $710: B=5189 → 4479, A=2899 → 3609
[TX089] Transfer $95: A=3609 → 3514, B=4479 → 4574
[TX090] Transfer $651: A=3514 → 2863, B=4574 → 5225
[TX091] Transfer $538: B=5225 → 4687, A=2863 → 3401
[TX092] Transfer $389: B=4687 → 4298, A=3401 → 3790
[TX093] Transfer $788: B=4298 → 3510, A=3790 → 4578
[TX094] Transfer $581: A=4578 → 3997, B=3510 → 4091
[TX095] Transfer $891: A=3997 → 3106, B=4091 → 4982
[TX096] Transfer $789: A=3106 → 2317, B=4982 → 5771
[TX097] Transfer $317: A=2317 → 2000, B=5771 → 6088
[TX098] Transfer $297: B=6088 → 5791, A=2000 → 2297
[TX099] Transfer $922: A=2297 → 1375, B=5791 → 6713
[TX100] Transfer $5: A=1375 → 1370, B=6713 → 6718
[TX101] Transfer $471: B=6718 → 6247, A=1370 → 1841
[TX102] Transfer $558: B=6247 → 5689, A=1841 → 2399
[TX103] Transfer $245: A=2399 → 2154, B=5689 → 5934
[TX104] Transfer $466: A=2154 → 1688, B=5934 → 6400
[TX105] Transfer $83: B=6400 → 6317, A=1688 → 1771
POSSIBLE BUG TYPES (choose exactly one):
- CALC_ERROR: Mathematical calculation is incorrect
- NEGATIVE_BAL: Account balance becomes negative
- LOST_UPDATE: Concurrent update causes lost transaction
- DUPLICATE_TXN: Same transaction processed multiple times
Identify the SINGLE bug if any exists.
Respond with ONLY a JSON object:
{"bug_type": "<type>", "bug_location": "<TX_ID>"
Your response:
|
LOST_UPDATE
|
TX075
|
Thread T2 overwrites T1's change
|
LOST_UPDATE
| 105
|
{"bug_type": "LOST_UPDATE", "bug_location": "TX075", "explanation": "Thread T2 overwrites T1's change"}
|
{"bug_type": "LOST_UPDATE", "n_ops": 105}
|
79
|
Analyze this banking transaction log for bugs.
Each operation shows the complete state change.
INITIAL STATE:
{
"account_A": 4000,
"account_B": 4200,
"total": 8200
}
RULES:
1. Total money must remain constant (conservation)
2. No account can go negative
3. All calculations must be mathematically correct
TRANSACTION LOG:
[TX001] Transfer $998: B=4200 → 3202, A=4000 → 4998
[TX002] Transfer $653: A=4998 → 4345, B=3202 → 3855
[TX003] Transfer $72: B=3855 → 3783, A=4345 → 4417
[TX004] Transfer $333: B=3783 → 3450, A=4417 → 4750
[TX005] Transfer $424: A=4750 → 4326, B=3450 → 3874
[TX006] Transfer $459: B=3874 → 3415, A=4326 → 4785
[TX007] Transfer $968: B=3415 → 2447, A=4785 → 5753
[TX008] Transfer $597: B=2447 → 1850, A=5753 → 6350
[TX009] Transfer $444: B=1850 → 1406, A=6350 → 6794
[TX010] Transfer $735: B=1406 → 671, A=6794 → 7529
[TX011] Transfer $61: A=7529 → 7468, B=671 → 732
[TX012] Transfer $904: A=7468 → 6564, B=732 → 1636
[TX013] Transfer $725: A=6564 → 5839, B=1636 → 2361
[TX014] Transfer $944: A=5839 → 4895, B=2361 → 3305
[TX015] Transfer $527: A=4895 → 4368, B=3305 → 3832
[TX016] Transfer $993: B=3832 → 2839, A=4368 → 5361
[TX017] Transfer $986: A=5361 → 4375, B=2839 → 3825
[TX018] Transfer $36: B=3825 → 3789, A=4375 → 4411
[TX019] Transfer $510: B=3789 → 3279, A=4411 → 4921
[TX020] Transfer $3284: B=3279 → -5, A=4921 → 8205
[TX021] Balance check: B=-5
[TX022] Balance check: B=-5
[TX023] Balance check: B=-5
[TX024] Transfer $354: A=8205 → 7851, B=-5 → 349
[TX025] Transfer $4: B=349 → 345, A=7851 → 7855
[TX026] Transfer $42: B=345 → 303, A=7855 → 7897
[TX027] Transfer $566: A=7897 → 7331, B=303 → 869
[TX028] Transfer $564: B=869 → 305, A=7331 → 7895
[TX029] Transfer $962: A=7895 → 6933, B=305 → 1267
[TX030] Transfer $807: A=6933 → 6126, B=1267 → 2074
[TX031] Transfer $580: B=2074 → 1494, A=6126 → 6706
[TX032] Transfer $683: A=6706 → 6023, B=1494 → 2177
[TX033] Transfer $906: B=2177 → 1271, A=6023 → 6929
[TX034] Transfer $477: A=6929 → 6452, B=1271 → 1748
[TX035] Transfer $58: A=6452 → 6394, B=1748 → 1806
[TX036] Transfer $420: B=1806 → 1386, A=6394 → 6814
[TX037] Transfer $89: A=6814 → 6725, B=1386 → 1475
[TX038] Transfer $536: A=6725 → 6189, B=1475 → 2011
[TX039] Transfer $90: A=6189 → 6099, B=2011 → 2101
[TX040] Transfer $742: A=6099 → 5357, B=2101 → 2843
[TX041] Transfer $927: A=5357 → 4430, B=2843 → 3770
[TX042] Transfer $72: A=4430 → 4358, B=3770 → 3842
[TX043] Transfer $130: B=3842 → 3712, A=4358 → 4488
[TX044] Transfer $971: A=4488 → 3517, B=3712 → 4683
[TX045] Transfer $511: B=4683 → 4172, A=3517 → 4028
[TX046] Transfer $771: B=4172 → 3401, A=4028 → 4799
[TX047] Transfer $980: B=3401 → 2421, A=4799 → 5779
[TX048] Transfer $392: B=2421 → 2029, A=5779 → 6171
[TX049] Transfer $672: A=6171 → 5499, B=2029 → 2701
[TX050] Transfer $452: A=5499 → 5047, B=2701 → 3153
[TX051] Transfer $874: B=3153 → 2279, A=5047 → 5921
[TX052] Transfer $847: B=2279 → 1432, A=5921 → 6768
[TX053] Transfer $638: A=6768 → 6130, B=1432 → 2070
[TX054] Transfer $244: A=6130 → 5886, B=2070 → 2314
[TX055] Transfer $513: A=5886 → 5373, B=2314 → 2827
[TX056] Transfer $505: A=5373 → 4868, B=2827 → 3332
[TX057] Transfer $242: A=4868 → 4626, B=3332 → 3574
[TX058] Transfer $87: B=3574 → 3487, A=4626 → 4713
[TX059] Transfer $549: B=3487 → 2938, A=4713 → 5262
[TX060] Transfer $964: A=5262 → 4298, B=2938 → 3902
[TX061] Transfer $769: B=3902 → 3133, A=4298 → 5067
[TX062] Transfer $686: A=5067 → 4381, B=3133 → 3819
[TX063] Transfer $465: A=4381 → 3916, B=3819 → 4284
[TX064] Transfer $869: A=3916 → 3047, B=4284 → 5153
[TX065] Transfer $959: B=5153 → 4194, A=3047 → 4006
[TX066] Transfer $977: B=4194 → 3217, A=4006 → 4983
[TX067] Transfer $284: A=4983 → 4699, B=3217 → 3501
[TX068] Transfer $907: A=4699 → 3792, B=3501 → 4408
[TX069] Transfer $524: B=4408 → 3884, A=3792 → 4316
[TX070] Transfer $486: B=3884 → 3398, A=4316 → 4802
[TX071] Transfer $680: B=3398 → 2718, A=4802 → 5482
[TX072] Transfer $656: A=5482 → 4826, B=2718 → 3374
[TX073] Transfer $17: A=4826 → 4809, B=3374 → 3391
[TX074] Transfer $1000: A=4809 → 3809, B=3391 → 4391
[TX075] Transfer $514: A=3809 → 3295, B=4391 → 4905
[TX076] Transfer $998: B=4905 → 3907, A=3295 → 4293
[TX077] Transfer $242: A=4293 → 4051, B=3907 → 4149
[TX078] Transfer $833: B=4149 → 3316, A=4051 → 4884
[TX079] Transfer $56: A=4884 → 4828, B=3316 → 3372
[TX080] Transfer $901: B=3372 → 2471, A=4828 → 5729
[TX081] Transfer $972: B=2471 → 1499, A=5729 → 6701
[TX082] Transfer $90: A=6701 → 6611, B=1499 → 1589
[TX083] Transfer $865: B=1589 → 724, A=6611 → 7476
[TX084] Transfer $169: B=724 → 555, A=7476 → 7645
[TX085] Transfer $296: B=555 → 259, A=7645 → 7941
[TX086] Transfer $995: A=7941 → 6946, B=259 → 1254
[TX087] Transfer $822: B=1254 → 432, A=6946 → 7768
[TX088] Transfer $65: B=432 → 367, A=7768 → 7833
[TX089] Transfer $794: A=7833 → 7039, B=367 → 1161
[TX090] Transfer $545: A=7039 → 6494, B=1161 → 1706
[TX091] Transfer $257: A=6494 → 6237, B=1706 → 1963
POSSIBLE BUG TYPES (choose exactly one):
- CALC_ERROR: Mathematical calculation is incorrect
- NEGATIVE_BAL: Account balance becomes negative
- LOST_UPDATE: Concurrent update causes lost transaction
- DUPLICATE_TXN: Same transaction processed multiple times
Identify the SINGLE bug if any exists.
Respond with ONLY a JSON object:
{"bug_type": "<type>", "bug_location": "<TX_ID>"
Your response:
|
NEGATIVE_BAL
|
TX020
|
Account balance goes negative
|
NEGATIVE_BAL
| 91
|
{"bug_type": "NEGATIVE_BAL", "bug_location": "TX020", "explanation": "Account balance goes negative"}
|
{"bug_type": "NEGATIVE_BAL", "n_ops": 91}
|
43
|
Analyze this banking transaction log for bugs.
Each operation shows the complete state change.
INITIAL STATE:
{
"account_A": 4000,
"account_B": 4200,
"total": 8200
}
RULES:
1. Total money must remain constant (conservation)
2. No account can go negative
3. All calculations must be mathematically correct
TRANSACTION LOG:
[TX001] Transfer $614: A=4000 → 3386, B=4200 → 4814
[TX002] Transfer $8: A=3386 → 3378, B=4814 → 4822
[TX003] Transfer $380: B=4822 → 4442, A=3378 → 3758
[TX004] Transfer $966: A=3758 → 2792, B=4442 → 5408
[TX005] Transfer $535: B=5408 → 4873, A=2792 → 3327
[TX006] Transfer $304: A=3327 → 3023, B=4873 → 5177
[TX007] Transfer $457: A=3023 → 2566, B=5177 → 5634
[TX008] Transfer $271: B=5634 → 5363, A=2566 → 2837
[TX009] Transfer $287: A=2837 → 2550, B=5363 → 5650
[TX010] Transfer $824: A=2550 → 1726, B=5650 → 6474
[TX011] Transfer $746: A=1726 → 980, B=6474 → 7220
[TX012] Transfer $162: A=980 → 818, B=7220 → 7382
[TX013] Transfer $466: B=7382 → 6916, A=818 → 1284
[TX014] Transfer $915: A=1284 → 369, B=6916 → 7831
[TX015] Transfer $53: A=369 → 316, B=7831 → 7884
[TX016] Transfer $863: B=7884 → 7021, A=316 → 1179
[TX017] Transfer $253: A=1179 → 926, B=7021 → 7274
[TX018] Transfer $227: A=926 → 699, B=7274 → 7501
[TX019] Transfer $483: A=699 → 216, B=7501 → 7984
[TX020] Transfer $106: A=216 → 110, B=7984 → 8090
[TX021] Transfer $6: A=110 → 104, B=8090 → 8096
[TX022] Transfer $4: A=104 → 100, B=8096 → 8100
[TX023] Balance check: A=100
[TX024] Balance check: A=100
[TX025] Balance check: A=100
[TX026] Balance check: A=100
[TX027] Balance check: A=100
[TX028] Transfer $648: B=8100 → 7452, A=100 → 748
[TX029] Transfer $497: A=748 → 251, B=7452 → 7949
[TX030] Transfer $61: A=251 → 190, B=7949 → 8010
[TX031] Transfer $503: B=8010 → 7507, A=190 → 693
[TX032] Transfer $558: B=7507 → 6949, A=693 → 1251
[TX033] Transfer $100: B=6949 → 6849, A=1251 → 1351
[TX034] Transfer $988: A=1351 → 363, B=6849 → 7837
[TX035] Transfer $994: B=7837 → 6843, A=363 → 1357
[TX036] Transfer $255: B=6843 → 6588, A=1357 → 1612
[TX037] Transfer $182: B=6588 → 6406, A=1612 → 1794
[TX038] Transfer $678: B=6406 → 5728, A=1794 → 2472
[TX039] Transfer $715: A=2472 → 1757, B=5728 → 6443
[TX040] Transfer $794: B=6443 → 5649, A=1757 → 2551
[TX041] Transfer $617: B=5649 → 5032, A=2551 → 3168
[TX042] Transfer $31: B=5032 → 5001, A=3168 → 3199
[TX043] Transfer $521: B=5001 → 4480, A=3199 → 3720
[TX044] Transfer $64: A=3720 → 3656, B=4480 → 4544
[TX045] Transfer $693: B=4544 → 3851, A=3656 → 4349
[TX046] Transfer $402: B=3851 → 3449, A=4349 → 4751
[TX047] Transfer $410: B=3449 → 3039, A=4751 → 5161
[TX048] Transfer $276: B=3039 → 2763, A=5161 → 5437
[TX049] Transfer $349: B=2763 → 2414, A=5437 → 5786
[TX050] Transfer $460: A=5786 → 5326, B=2414 → 2874
[TX051] Transfer $588: B=2874 → 2286, A=5326 → 5914
[TX052] Transfer $800: A=5914 → 5114, B=2286 → 3086
[TX053] Transfer $134: A=5114 → 4980, B=3086 → 3220
[TX054] Transfer $823: A=4980 → 4157, B=3220 → 4043
[TX055] Transfer $801: B=4043 → 3242, A=4157 → 4958
[TX056] Transfer $787: B=3242 → 2455, A=4958 → 5745
[TX057] Transfer $533: A=5745 → 5212, B=2455 → 2988
[TX058] Transfer $550: A=5212 → 4662, B=2988 → 3538
[TX059] Transfer $860: A=4662 → 3802, B=3538 → 4398
[TX060] Transfer $299: B=4398 → 4099, A=3802 → 4101
[TX061] Transfer $341: A=4101 → 3760, B=4099 → 4440
[TX062] Transfer $568: B=4440 → 3872, A=3760 → 4328
[TX063] Transfer $38: A=4328 → 4290, B=3872 → 3910
[TX064] Transfer $515: A=4290 → 3775, B=3910 → 4425
[TX065] Transfer $45: B=4425 → 4380, A=3775 → 3820
[TX066] Transfer $310: A=3820 → 3510, B=4380 → 4690
[TX067] Transfer $648: A=3510 → 2862, B=4690 → 5338
[TX068] Transfer $280: A=2862 → 2582, B=5338 → 5618
[TX069] Transfer $673: A=2582 → 1909, B=5618 → 6291
[TX070] Transfer $839: B=6291 → 5452, A=1909 → 2748
[TX071] Transfer $80: B=5452 → 5372, A=2748 → 2828
[TX072] Transfer $22: A=2828 → 2806, B=5372 → 5395
[TX073] Transfer $755: A=2806 → 2051, B=5394 → 6149
[TX074] Transfer $853: B=6149 → 5296, A=2051 → 2904
[TX075] Transfer $437: B=5296 → 4859, A=2904 → 3341
[TX076] Transfer $282: A=3341 → 3059, B=4859 → 5141
[TX077] Transfer $104: B=5141 → 5037, A=3059 → 3163
[TX078] Transfer $387: B=5037 → 4650, A=3163 → 3550
[TX079] Transfer $97: B=4650 → 4553, A=3550 → 3647
[TX080] Transfer $576: A=3647 → 3071, B=4553 → 5129
[TX081] Transfer $293: B=5129 → 4836, A=3071 → 3364
[TX082] Transfer $19: A=3364 → 3345, B=4836 → 4855
[TX083] Transfer $976: B=4855 → 3879, A=3345 → 4321
[TX084] Transfer $465: B=3879 → 3414, A=4321 → 4786
[TX085] Transfer $408: A=4786 → 4378, B=3414 → 3822
[TX086] Transfer $380: A=4378 → 3998, B=3822 → 4202
[TX087] Transfer $660: B=4202 → 3542, A=3998 → 4658
[TX088] Transfer $149: B=3542 → 3393, A=4658 → 4807
[TX089] Transfer $576: A=4807 → 4231, B=3393 → 3969
[TX090] Transfer $887: A=4231 → 3344, B=3969 → 4856
[TX091] Transfer $87: B=4856 → 4769, A=3344 → 3431
[TX092] Transfer $633: A=3431 → 2798, B=4769 → 5402
[TX093] Transfer $62: B=5402 → 5340, A=2798 → 2860
[TX094] Transfer $423: B=5340 → 4917, A=2860 → 3283
[TX095] Transfer $856: B=4917 → 4061, A=3283 → 4139
[TX096] Transfer $331: A=4139 → 3808, B=4061 → 4392
[TX097] Transfer $276: B=4392 → 4116, A=3808 → 4084
[TX098] Transfer $560: A=4084 → 3524, B=4116 → 4676
[TX099] Transfer $984: B=4676 → 3692, A=3524 → 4508
[TX100] Transfer $474: A=4508 → 4034, B=3692 → 4166
[TX101] Transfer $945: B=4166 → 3221, A=4034 → 4979
[TX102] Transfer $718: A=4979 → 4261, B=3221 → 3939
[TX103] Transfer $132: A=4261 → 4129, B=3939 → 4071
[TX104] Transfer $534: A=4129 → 3595, B=4071 → 4605
[TX105] Transfer $204: A=3595 → 3391, B=4605 → 4809
[TX106] Transfer $41: B=4809 → 4768, A=3391 → 3432
[TX107] Transfer $176: B=4768 → 4592, A=3432 → 3608
[TX108] Transfer $768: B=4592 → 3824, A=3608 → 4376
[TX109] Transfer $11: B=3824 → 3813, A=4376 → 4387
[TX110] Transfer $447: B=3813 → 3366, A=4387 → 4834
[TX111] Transfer $537: B=3366 → 2829, A=4834 → 5371
[TX112] Transfer $579: B=2829 → 2250, A=5371 → 5950
POSSIBLE BUG TYPES (choose exactly one):
- CALC_ERROR: Mathematical calculation is incorrect
- NEGATIVE_BAL: Account balance becomes negative
- LOST_UPDATE: Concurrent update causes lost transaction
- DUPLICATE_TXN: Same transaction processed multiple times
Identify the SINGLE bug if any exists.
Respond with ONLY a JSON object:
{"bug_type": "<type>", "bug_location": "<TX_ID>"
Your response:
|
CALC_ERROR
|
TX072
|
Mathematical calculation is incorrect
|
CALC_ERROR
| 112
|
{"bug_type": "CALC_ERROR", "bug_location": "TX072", "explanation": "Mathematical calculation is incorrect"}
|
{"bug_type": "CALC_ERROR", "n_ops": 112}
|
90
|
Analyze this banking transaction log for bugs.
Each operation shows the complete state change.
INITIAL STATE:
{
"account_A": 4000,
"account_B": 4200,
"total": 8200
}
RULES:
1. Total money must remain constant (conservation)
2. No account can go negative
3. All calculations must be mathematically correct
TRANSACTION LOG:
[TX001] Transfer $960: A=4000 → 3040, B=4200 → 5160
[TX002] Transfer $873: A=3040 → 2167, B=5160 → 6033
[TX003] Transfer $412: A=2167 → 1755, B=6033 → 6445
[TX004] Payment PAY1027: Transfer $334: B=6445 → 6111, A=1755 → 2089
[TX005] Transfer $763: B=6111 → 5348, A=2089 → 2852
[TX006] Transfer $901: A=2852 → 1951, B=5348 → 6249
[TX007] Transfer $552: B=6249 → 5697, A=1951 → 2503
[TX008] Transfer $239: A=2503 → 2264, B=5697 → 5936
[TX009] Transfer $367: B=5936 → 5569, A=2264 → 2631
[TX010] Transfer $271: B=5569 → 5298, A=2631 → 2902
[TX011] Transfer $590: B=5298 → 4708, A=2902 → 3492
[TX012] Transfer $938: B=4708 → 3770, A=3492 → 4430
[TX013] Transfer $745: A=4430 → 3685, B=3770 → 4515
[TX014] Transfer $835: B=4515 → 3680, A=3685 → 4520
[TX015] Transfer $444: A=4520 → 4076, B=3680 → 4124
[TX016] Transfer $629: A=4076 → 3447, B=4124 → 4753
[TX017] Transfer $225: B=4753 → 4528, A=3447 → 3672
[TX018] Transfer $891: B=4528 → 3637, A=3672 → 4563
[TX019] Transfer $598: A=4563 → 3965, B=3637 → 4235
[TX020] Transfer $465: B=4235 → 3770, A=3965 → 4430
[TX021] Transfer $680: A=4430 → 3750, B=3770 → 4450
[TX022] Transfer $108: B=4450 → 4342, A=3750 → 3858
[TX023] Transfer $729: B=4342 → 3613, A=3858 → 4587
[TX024] Transfer $580: A=4587 → 4007, B=3613 → 4193
[TX025] Transfer $574: A=4007 → 3433, B=4193 → 4767
[TX026] Transfer $659: B=4767 → 4108, A=3433 → 4092
[TX027] Transfer $234: A=4092 → 3858, B=4108 → 4342
[TX028] Transfer $94: A=3858 → 3764, B=4342 → 4436
[TX029] Transfer $72: B=4436 → 4364, A=3764 → 3836
[TX030] Transfer $552: B=4364 → 3812, A=3836 → 4388
[TX031] Transfer $818: A=4388 → 3570, B=3812 → 4630
[TX032] Transfer $971: B=4630 → 3659, A=3570 → 4541
[TX033] Transfer $309: B=3659 → 3350, A=4541 → 4850
[TX034] Transfer $868: B=3350 → 2482, A=4850 → 5718
[TX035] Transfer $400: B=2482 → 2082, A=5718 → 6118
[TX036] Transfer $355: A=6118 → 5763, B=2082 → 2437
[TX037] Transfer $667: B=2437 → 1770, A=5763 → 6430
[TX038] Transfer $276: A=6430 → 6154, B=1770 → 2046
[TX039] Transfer $67: A=6154 → 6087, B=2046 → 2113
[TX040] Transfer $346: B=2113 → 1767, A=6087 → 6433
[TX041] Transfer $921: A=6433 → 5512, B=1767 → 2688
[TX042] Transfer $527: A=5512 → 4985, B=2688 → 3215
[TX043] Transfer $580: A=4985 → 4405, B=3215 → 3795
[TX044] Transfer $914: A=4405 → 3491, B=3795 → 4709
[TX045] Transfer $808: A=3491 → 2683, B=4709 → 5517
[TX046] Transfer $685: B=5517 → 4832, A=2683 → 3368
[TX047] Transfer $717: B=4832 → 4115, A=3368 → 4085
[TX048] Transfer $838: A=4085 → 3247, B=4115 → 4953
[TX049] Transfer $832: A=3247 → 2415, B=4953 → 5785
[TX050] Transfer $28: B=5785 → 5757, A=2415 → 2443
[TX051] Transfer $550: A=2443 → 1893, B=5757 → 6307
[TX052] Transfer $682: B=6307 → 5625, A=1893 → 2575
[TX053] Transfer $791: A=2575 → 1784, B=5625 → 6416
[TX054] Transfer $436: A=1784 → 1348, B=6416 → 6852
[TX055] Transfer $590: B=6852 → 6262, A=1348 → 1938
[TX056] Transfer $121: B=6262 → 6141, A=1938 → 2059
[TX057] Transfer $388: A=2059 → 1671, B=6141 → 6529
[TX058] Transfer $128: B=6529 → 6401, A=1671 → 1799
[TX059] Transfer $425: B=6401 → 5976, A=1799 → 2224
[TX060] Transfer $3: B=5976 → 5973, A=2224 → 2227
[TX061] Transfer $766: A=2227 → 1461, B=5973 → 6739
[TX062] Transfer $286: B=6739 → 6453, A=1461 → 1747
[TX063] Transfer $139: A=1747 → 1608, B=6453 → 6592
[TX064] Transfer $698: A=1608 → 910, B=6592 → 7290
[TX065] Transfer $630: A=910 → 280, B=7290 → 7920
[TX066] Transfer $55: A=280 → 225, B=7920 → 7975
[TX067] Transfer $569: B=7975 → 7406, A=225 → 794
[TX068] Transfer $501: A=794 → 293, B=7406 → 7907
[TX069] Transfer $98: B=7907 → 7809, A=293 → 391
[TX070] Transfer $631: B=7809 → 7178, A=391 → 1022
[TX071] Transfer $155: A=1022 → 867, B=7178 → 7333
[TX072] Transfer $835: B=7333 → 6498, A=867 → 1702
[TX073] Transfer $282: B=6498 → 6216, A=1702 → 1984
[TX074] Transfer $633: B=6216 → 5583, A=1984 → 2617
[TX075] Transfer $253: A=2617 → 2364, B=5583 → 5836
[TX076] Transfer $470: B=5836 → 5366, A=2364 → 2834
[TX077] Transfer $931: B=5366 → 4435, A=2834 → 3765
[TX078] Transfer $904: B=4435 → 3531, A=3765 → 4669
[TX079] Transfer $891: B=3531 → 2640, A=4669 → 5560
[TX080] Transfer $114: B=2640 → 2526, A=5560 → 5674
[TX081] Transfer $503: B=2526 → 2023, A=5674 → 6177
[TX082] Transfer $225: A=6177 → 5952, B=2023 → 2248
[TX083] Transfer $754: A=5952 → 5198, B=2248 → 3002
[TX084] Transfer $366: B=3002 → 2636, A=5198 → 5564
[TX085] Transfer $499: A=5564 → 5065, B=2636 → 3135
[TX086] Transfer $873: B=3135 → 2262, A=5065 → 5938
[TX087] Transfer $307: B=2262 → 1955, A=5938 → 6245
[TX088] Payment PAY1027: Transfer $334: B=1955 → 1621, A=6245 → 6579
[TX089] Transfer $223: A=6579 → 6356, B=1621 → 1844
[TX090] Transfer $998: B=1844 → 846, A=6356 → 7354
[TX091] Transfer $353: A=7354 → 7001, B=846 → 1199
[TX092] Transfer $853: A=7001 → 6148, B=1199 → 2052
[TX093] Transfer $949: B=2052 → 1103, A=6148 → 7097
[TX094] Transfer $494: B=1103 → 609, A=7097 → 7591
[TX095] Transfer $548: A=7591 → 7043, B=609 → 1157
[TX096] Transfer $309: A=7043 → 6734, B=1157 → 1466
[TX097] Transfer $981: B=1466 → 485, A=6734 → 7715
[TX098] Transfer $260: A=7715 → 7455, B=485 → 745
[TX099] Transfer $389: B=745 → 356, A=7455 → 7844
[TX100] Transfer $705: A=7844 → 7139, B=356 → 1061
[TX101] Transfer $596: B=1061 → 465, A=7139 → 7735
[TX102] Transfer $368: A=7735 → 7367, B=465 → 833
[TX103] Transfer $268: A=7367 → 7099, B=833 → 1101
[TX104] Transfer $605: B=1101 → 496, A=7099 → 7704
[TX105] Transfer $34: B=496 → 462, A=7704 → 7738
[TX106] Transfer $298: A=7738 → 7440, B=462 → 760
[TX107] Transfer $294: A=7440 → 7146, B=760 → 1054
[TX108] Transfer $509: A=7146 → 6637, B=1054 → 1563
POSSIBLE BUG TYPES (choose exactly one):
- CALC_ERROR: Mathematical calculation is incorrect
- NEGATIVE_BAL: Account balance becomes negative
- LOST_UPDATE: Concurrent update causes lost transaction
- DUPLICATE_TXN: Same transaction processed multiple times
Identify the SINGLE bug if any exists.
Respond with ONLY a JSON object:
{"bug_type": "<type>", "bug_location": "<TX_ID>"
Your response:
|
DUPLICATE_TXN
|
TX088
|
Payment PAY1027 processed twice
|
DUPLICATE_TXN
| 108
|
{"bug_type": "DUPLICATE_TXN", "bug_location": "TX088", "explanation": "Payment PAY1027 processed twice"}
|
{"bug_type": "DUPLICATE_TXN", "n_ops": 108}
|
20
|
Analyze this banking transaction log for bugs.
Each operation shows the complete state change.
INITIAL STATE:
{
"account_A": 4000,
"account_B": 4200,
"total": 8200
}
RULES:
1. Total money must remain constant (conservation)
2. No account can go negative
3. All calculations must be mathematically correct
TRANSACTION LOG:
[TX001] Transfer $52: B=4200 → 4148, A=4000 → 4052
[TX002] Transfer $58: A=4052 → 3994, B=4148 → 4206
[TX003] Transfer $150: B=4206 → 4056, A=3994 → 4144
[TX004] Transfer $341: A=4144 → 3803, B=4056 → 4397
[TX005] Transfer $113: A=3803 → 3690, B=4397 → 4510
[TX006] Transfer $167: B=4510 → 4343, A=3690 → 3857
[TX007] Transfer $991: B=4343 → 3352, A=3857 → 4848
[TX008] Transfer $955: B=3352 → 2397, A=4848 → 5803
[TX009] Transfer $788: A=5803 → 5015, B=2397 → 3185
[TX010] Transfer $379: B=3185 → 2806, A=5015 → 5394
[TX011] Transfer $778: B=2806 → 2028, A=5394 → 6172
[TX012] Transfer $301: B=2028 → 1727, A=6172 → 6473
[TX013] Transfer $126: B=1727 → 1601, A=6473 → 6599
[TX014] Transfer $541: B=1601 → 1060, A=6599 → 7140
[TX015] Transfer $714: B=1060 → 346, A=7140 → 7854
[TX016] Transfer $113: A=7854 → 7741, B=346 → 459
[TX017] Transfer $743: A=7741 → 6998, B=459 → 1202
[TX018] Transfer $625: B=1202 → 577, A=6998 → 7623
[TX019] Transfer $271: B=577 → 306, A=7623 → 7894
[TX020] Transfer $159: B=306 → 147, A=7894 → 8053
[TX021] Transfer $33: B=147 → 114, A=8053 → 8086
[TX022] Transfer $727: A=8086 → 7359, B=114 → 841
[TX023] Transfer $3: B=841 → 838, A=7359 → 7362
[TX024] Transfer $478: A=7362 → 6884, B=838 → 1316
[TX025] Transfer $820: A=6884 → 6064, B=1316 → 2136
[TX026] Transfer $48: B=2136 → 2088, A=6064 → 6112
[TX027] Transfer $575: B=2088 → 1513, A=6112 → 6687
[TX028] Transfer $657: A=6687 → 6030, B=1513 → 2170
[TX029] Transfer $262: A=6030 → 5768, B=2170 → 2432
[TX030] Transfer $309: A=5768 → 5459, B=2432 → 2741
[TX031] Transfer $118: B=2741 → 2623, A=5459 → 5577
[TX032] Thread T1: READ B=2623
[TX033] Thread T2: READ B=2623
[TX034] Thread T1: COMMIT B=2623 → 2486
[TX035] Thread T2: COMMIT B=2623 → 2472
[TX036] Transfer $200: A=5577 → 5377, B=2472 → 2672
[TX037] Transfer $946: B=2672 → 1726, A=5377 → 6323
[TX038] Transfer $818: B=1726 → 908, A=6323 → 7141
[TX039] Transfer $495: A=7141 → 6646, B=908 → 1403
[TX040] Transfer $915: A=6646 → 5731, B=1403 → 2318
[TX041] Transfer $804: B=2318 → 1514, A=5731 → 6535
[TX042] Transfer $857: B=1514 → 657, A=6535 → 7392
[TX043] Transfer $550: B=657 → 107, A=7392 → 7942
[TX044] Transfer $593: A=7942 → 7349, B=107 → 700
[TX045] Transfer $69: B=700 → 631, A=7349 → 7418
[TX046] Transfer $862: A=7418 → 6556, B=631 → 1493
[TX047] Transfer $386: A=6556 → 6170, B=1493 → 1879
[TX048] Transfer $193: A=6170 → 5977, B=1879 → 2072
[TX049] Transfer $724: A=5977 → 5253, B=2072 → 2796
[TX050] Transfer $280: B=2796 → 2516, A=5253 → 5533
[TX051] Transfer $510: B=2516 → 2006, A=5533 → 6043
[TX052] Transfer $464: A=6043 → 5579, B=2006 → 2470
[TX053] Transfer $539: B=2470 → 1931, A=5579 → 6118
[TX054] Transfer $116: B=1931 → 1815, A=6118 → 6234
[TX055] Transfer $798: B=1815 → 1017, A=6234 → 7032
[TX056] Transfer $456: A=7032 → 6576, B=1017 → 1473
[TX057] Transfer $928: A=6576 → 5648, B=1473 → 2401
[TX058] Transfer $350: A=5648 → 5298, B=2401 → 2751
[TX059] Transfer $796: B=2751 → 1955, A=5298 → 6094
[TX060] Transfer $789: B=1955 → 1166, A=6094 → 6883
[TX061] Transfer $212: A=6883 → 6671, B=1166 → 1378
[TX062] Transfer $398: A=6671 → 6273, B=1378 → 1776
[TX063] Transfer $320: A=6273 → 5953, B=1776 → 2096
[TX064] Transfer $343: A=5953 → 5610, B=2096 → 2439
[TX065] Transfer $107: B=2439 → 2332, A=5610 → 5717
[TX066] Transfer $593: B=2332 → 1739, A=5717 → 6310
[TX067] Transfer $330: B=1739 → 1409, A=6310 → 6640
[TX068] Transfer $295: A=6640 → 6345, B=1409 → 1704
[TX069] Transfer $793: B=1704 → 911, A=6345 → 7138
[TX070] Transfer $281: B=911 → 630, A=7138 → 7419
[TX071] Transfer $282: A=7419 → 7137, B=630 → 912
[TX072] Transfer $983: A=7137 → 6154, B=912 → 1895
[TX073] Transfer $557: A=6154 → 5597, B=1895 → 2452
[TX074] Transfer $279: B=2452 → 2173, A=5597 → 5876
[TX075] Transfer $589: A=5876 → 5287, B=2173 → 2762
[TX076] Transfer $74: A=5287 → 5213, B=2762 → 2836
[TX077] Transfer $555: B=2836 → 2281, A=5213 → 5768
[TX078] Transfer $135: B=2281 → 2146, A=5768 → 5903
[TX079] Transfer $926: A=5903 → 4977, B=2146 → 3072
[TX080] Transfer $394: A=4977 → 4583, B=3072 → 3466
POSSIBLE BUG TYPES (choose exactly one):
- CALC_ERROR: Mathematical calculation is incorrect
- NEGATIVE_BAL: Account balance becomes negative
- LOST_UPDATE: Concurrent update causes lost transaction
- DUPLICATE_TXN: Same transaction processed multiple times
Identify the SINGLE bug if any exists.
Respond with ONLY a JSON object:
{"bug_type": "<type>", "bug_location": "<TX_ID>"
Your response:
|
LOST_UPDATE
|
TX035
|
Thread T2 overwrites T1's change
|
LOST_UPDATE
| 80
|
{"bug_type": "LOST_UPDATE", "bug_location": "TX035", "explanation": "Thread T2 overwrites T1's change"}
|
{"bug_type": "LOST_UPDATE", "n_ops": 80}
|
0
|
Analyze this banking transaction log for bugs.
Each operation shows the complete state change.
INITIAL STATE:
{
"account_A": 4000,
"account_B": 4200,
"total": 8200
}
RULES:
1. Total money must remain constant (conservation)
2. No account can go negative
3. All calculations must be mathematically correct
TRANSACTION LOG:
[TX001] Transfer $230: B=4200 → 3970, A=4000 → 4230
[TX002] Transfer $694: A=4230 → 3536, B=3970 → 4664
[TX003] Transfer $34: A=3536 → 3502, B=4664 → 4698
[TX004] Thread T1: READ A=3502
[TX005] Thread T2: READ A=3502
[TX006] Thread T1: COMMIT A=3502 → 3429
[TX007] Thread T2: COMMIT A=3502 → 3397
[TX008] Transfer $576: A=3397 → 2821, B=4698 → 5274
[TX009] Transfer $227: A=2821 → 2594, B=5274 → 5501
[TX010] Transfer $830: B=5501 → 4671, A=2594 → 3424
[TX011] Transfer $716: A=3424 → 2708, B=4671 → 5387
[TX012] Transfer $286: B=5387 → 5101, A=2708 → 2994
[TX013] Transfer $982: A=2994 → 2012, B=5101 → 6083
[TX014] Transfer $96: B=6083 → 5987, A=2012 → 2108
[TX015] Transfer $369: B=5987 → 5618, A=2108 → 2477
[TX016] Transfer $828: B=5618 → 4790, A=2477 → 3305
[TX017] Transfer $551: A=3305 → 2754, B=4790 → 5341
[TX018] Transfer $82: A=2754 → 2672, B=5341 → 5423
[TX019] Transfer $593: B=5423 → 4830, A=2672 → 3265
[TX020] Transfer $48: A=3265 → 3217, B=4830 → 4878
[TX021] Transfer $83: A=3217 → 3134, B=4878 → 4961
[TX022] Transfer $391: A=3134 → 2743, B=4961 → 5352
[TX023] Transfer $652: B=5352 → 4700, A=2743 → 3395
[TX024] Transfer $381: B=4700 → 4319, A=3395 → 3776
[TX025] Transfer $688: B=4319 → 3631, A=3776 → 4464
[TX026] Transfer $625: B=3631 → 3006, A=4464 → 5089
[TX027] Transfer $169: A=5089 → 4920, B=3006 → 3175
[TX028] Transfer $278: B=3175 → 2897, A=4920 → 5198
[TX029] Transfer $865: A=5198 → 4333, B=2897 → 3762
[TX030] Transfer $843: A=4333 → 3490, B=3762 → 4605
[TX031] Transfer $412: A=3490 → 3078, B=4605 → 5017
[TX032] Transfer $218: B=5017 → 4799, A=3078 → 3296
[TX033] Transfer $673: B=4799 → 4126, A=3296 → 3969
[TX034] Transfer $907: B=4126 → 3219, A=3969 → 4876
[TX035] Transfer $273: B=3219 → 2946, A=4876 → 5149
[TX036] Transfer $764: A=5149 → 4385, B=2946 → 3710
[TX037] Transfer $921: B=3710 → 2789, A=4385 → 5306
[TX038] Transfer $226: B=2789 → 2563, A=5306 → 5532
[TX039] Transfer $95: A=5532 → 5437, B=2563 → 2658
[TX040] Transfer $158: A=5437 → 5279, B=2658 → 2816
[TX041] Transfer $612: A=5279 → 4667, B=2816 → 3428
[TX042] Transfer $392: A=4667 → 4275, B=3428 → 3820
[TX043] Transfer $996: B=3820 → 2824, A=4275 → 5271
[TX044] Transfer $700: A=5271 → 4571, B=2824 → 3524
[TX045] Transfer $116: B=3524 → 3408, A=4571 → 4687
[TX046] Transfer $163: B=3408 → 3245, A=4687 → 4850
[TX047] Transfer $978: B=3245 → 2267, A=4850 → 5828
[TX048] Transfer $521: B=2267 → 1746, A=5828 → 6349
[TX049] Transfer $863: A=6349 → 5486, B=1746 → 2609
[TX050] Transfer $384: A=5486 → 5102, B=2609 → 2993
[TX051] Transfer $615: A=5102 → 4487, B=2993 → 3608
[TX052] Transfer $21: B=3608 → 3587, A=4487 → 4508
[TX053] Transfer $901: A=4508 → 3607, B=3587 → 4488
[TX054] Transfer $61: B=4488 → 4427, A=3607 → 3668
[TX055] Transfer $89: A=3668 → 3579, B=4427 → 4516
[TX056] Transfer $780: B=4516 → 3736, A=3579 → 4359
[TX057] Transfer $677: A=4359 → 3682, B=3736 → 4413
[TX058] Transfer $273: B=4413 → 4140, A=3682 → 3955
[TX059] Transfer $953: B=4140 → 3187, A=3955 → 4908
[TX060] Transfer $410: A=4908 → 4498, B=3187 → 3597
[TX061] Transfer $923: B=3597 → 2674, A=4498 → 5421
[TX062] Transfer $255: B=2674 → 2419, A=5421 → 5676
[TX063] Transfer $348: A=5676 → 5328, B=2419 → 2767
[TX064] Transfer $604: A=5328 → 4724, B=2767 → 3371
[TX065] Transfer $74: A=4724 → 4650, B=3371 → 3445
[TX066] Transfer $71: A=4650 → 4579, B=3445 → 3516
[TX067] Transfer $74: A=4579 → 4505, B=3516 → 3590
[TX068] Transfer $687: A=4505 → 3818, B=3590 → 4277
[TX069] Transfer $554: B=4277 → 3723, A=3818 → 4372
[TX070] Transfer $250: A=4372 → 4122, B=3723 → 3973
[TX071] Transfer $196: B=3973 → 3777, A=4122 → 4318
[TX072] Transfer $676: A=4318 → 3642, B=3777 → 4453
[TX073] Transfer $435: B=4453 → 4018, A=3642 → 4077
[TX074] Transfer $886: B=4018 → 3132, A=4077 → 4963
[TX075] Transfer $64: A=4963 → 4899, B=3132 → 3196
[TX076] Transfer $821: B=3196 → 2375, A=4899 → 5720
[TX077] Transfer $198: A=5720 → 5522, B=2375 → 2573
[TX078] Transfer $145: A=5522 → 5377, B=2573 → 2718
[TX079] Transfer $287: B=2718 → 2431, A=5377 → 5664
[TX080] Transfer $897: B=2431 → 1534, A=5664 → 6561
[TX081] Transfer $829: A=6561 → 5732, B=1534 → 2363
[TX082] Transfer $669: A=5732 → 5063, B=2363 → 3032
[TX083] Transfer $950: A=5063 → 4113, B=3032 → 3982
[TX084] Transfer $418: A=4113 → 3695, B=3982 → 4400
[TX085] Transfer $220: B=4400 → 4180, A=3695 → 3915
[TX086] Transfer $170: B=4180 → 4010, A=3915 → 4085
[TX087] Transfer $401: B=4010 → 3609, A=4085 → 4486
[TX088] Transfer $294: B=3609 → 3315, A=4486 → 4780
[TX089] Transfer $160: B=3315 → 3155, A=4780 → 4940
[TX090] Transfer $224: A=4940 → 4716, B=3155 → 3379
[TX091] Transfer $767: A=4716 → 3949, B=3379 → 4146
POSSIBLE BUG TYPES (choose exactly one):
- CALC_ERROR: Mathematical calculation is incorrect
- NEGATIVE_BAL: Account balance becomes negative
- LOST_UPDATE: Concurrent update causes lost transaction
- DUPLICATE_TXN: Same transaction processed multiple times
Identify the SINGLE bug if any exists.
Respond with ONLY a JSON object:
{"bug_type": "<type>", "bug_location": "<TX_ID>"
Your response:
|
LOST_UPDATE
|
TX007
|
Thread T2 overwrites T1's change
|
LOST_UPDATE
| 91
|
{"bug_type": "LOST_UPDATE", "bug_location": "TX007", "explanation": "Thread T2 overwrites T1's change"}
|
{"bug_type": "LOST_UPDATE", "n_ops": 91}
|
95
|
Analyze this banking transaction log for bugs.
Each operation shows the complete state change.
INITIAL STATE:
{
"account_A": 4000,
"account_B": 4200,
"total": 8200
}
RULES:
1. Total money must remain constant (conservation)
2. No account can go negative
3. All calculations must be mathematically correct
TRANSACTION LOG:
[TX001] Transfer $934: A=4000 → 3066, B=4200 → 5134
[TX002] Transfer $742: B=5134 → 4392, A=3066 → 3808
[TX003] Transfer $384: B=4392 → 4008, A=3808 → 4192
[TX004] Transfer $716: A=4192 → 3476, B=4008 → 4724
[TX005] Transfer $26: A=3476 → 3450, B=4724 → 4750
[TX006] Transfer $667: A=3450 → 2783, B=4750 → 5417
[TX007] Transfer $301: A=2783 → 2482, B=5417 → 5718
[TX008] Transfer $794: B=5718 → 4924, A=2482 → 3276
[TX009] Transfer $457: A=3276 → 2819, B=4924 → 5381
[TX010] Transfer $950: A=2819 → 1869, B=5381 → 6331
[TX011] Transfer $67: B=6331 → 6264, A=1869 → 1936
[TX012] Transfer $411: B=6264 → 5853, A=1936 → 2347
[TX013] Transfer $406: B=5853 → 5447, A=2347 → 2753
[TX014] Transfer $647: A=2753 → 2106, B=5447 → 6094
[TX015] Transfer $871: A=2106 → 1235, B=6094 → 6965
[TX016] Transfer $6: B=6965 → 6959, A=1235 → 1241
[TX017] Transfer $143: A=1241 → 1098, B=6959 → 7102
[TX018] Transfer $843: A=1098 → 255, B=7102 → 7945
[TX019] Transfer $130: A=255 → 125, B=7945 → 8075
[TX020] Transfer $399: B=8075 → 7676, A=125 → 524
[TX021] Transfer $211: B=7676 → 7465, A=524 → 735
[TX022] Transfer $464: A=735 → 271, B=7465 → 7929
[TX023] Transfer $971: B=7929 → 6958, A=271 → 1242
[TX024] Transfer $512: A=1242 → 730, B=6958 → 7470
[TX025] Transfer $392: A=730 → 338, B=7470 → 7862
[TX026] Transfer $165: A=338 → 173, B=7862 → 8027
[TX027] Transfer $914: B=8027 → 7113, A=173 → 1087
[TX028] Transfer $26: B=7113 → 7087, A=1087 → 1113
[TX029] Transfer $288: B=7087 → 6799, A=1113 → 1401
[TX030] Transfer $889: A=1401 → 512, B=6799 → 7688
[TX031] Transfer $135: A=512 → 377, B=7688 → 7823
[TX032] Transfer $931: B=7823 → 6892, A=377 → 1308
[TX033] Transfer $53: A=1308 → 1255, B=6892 → 6945
[TX034] Transfer $112: A=1255 → 1143, B=6945 → 7057
[TX035] Transfer $402: B=7057 → 6655, A=1143 → 1545
[TX036] Transfer $355: A=1545 → 1190, B=6655 → 7010
[TX037] Transfer $223: A=1190 → 967, B=7010 → 7233
[TX038] Transfer $263: A=967 → 704, B=7233 → 7496
[TX039] Transfer $290: A=704 → 414, B=7496 → 7786
[TX040] Transfer $125: A=414 → 289, B=7786 → 7911
[TX041] Transfer $105: A=289 → 184, B=7911 → 8016
[TX042] Transfer $79: B=8016 → 7937, A=184 → 263
[TX043] Transfer $50: A=263 → 213, B=7937 → 7987
[TX044] Transfer $67: A=213 → 146, B=7987 → 8054
[TX045] Transfer $21: A=146 → 125, B=8054 → 8075
[TX046] Transfer $362: B=8075 → 7713, A=125 → 487
[TX047] Transfer $23: A=487 → 464, B=7713 → 7736
[TX048] Transfer $208: A=464 → 256, B=7736 → 7944
[TX049] Transfer $290: B=7944 → 7654, A=256 → 546
[TX050] Transfer $500: B=7654 → 7154, A=546 → 1046
[TX051] Transfer $38: B=7154 → 7116, A=1046 → 1084
[TX052] Transfer $160: A=1084 → 924, B=7116 → 7276
[TX053] Transfer $416: B=7276 → 6860, A=924 → 1340
[TX054] Transfer $720: A=1340 → 620, B=6860 → 7580
[TX055] Transfer $97: A=620 → 523, B=7580 → 7677
[TX056] Transfer $266: A=523 → 257, B=7677 → 7943
[TX057] Transfer $820: B=7943 → 7123, A=257 → 1077
[TX058] Transfer $89: B=7123 → 7034, A=1077 → 1166
[TX059] Transfer $451: B=7034 → 6583, A=1166 → 1617
[TX060] Transfer $681: B=6583 → 5902, A=1617 → 2298
[TX061] Transfer $425: A=2298 → 1873, B=5902 → 6327
[TX062] Transfer $892: A=1873 → 981, B=6327 → 7219
[TX063] Transfer $30: A=981 → 951, B=7219 → 7249
[TX064] Transfer $385: B=7249 → 6864, A=951 → 1336
[TX065] Transfer $367: A=1336 → 969, B=6864 → 7231
[TX066] Transfer $434: A=969 → 535, B=7231 → 7665
[TX067] Transfer $724: B=7665 → 6941, A=535 → 1259
[TX068] Transfer $254: A=1259 → 1005, B=6941 → 7195
[TX069] Transfer $255: B=7195 → 6940, A=1005 → 1260
[TX070] Transfer $165: A=1260 → 1095, B=6940 → 7105
[TX071] Transfer $677: B=7105 → 6428, A=1095 → 1772
[TX072] Transfer $481: A=1772 → 1291, B=6428 → 6909
[TX073] Transfer $574: B=6909 → 6335, A=1291 → 1865
[TX074] Transfer $699: A=1865 → 1166, B=6335 → 7034
[TX075] Transfer $953: B=7034 → 6081, A=1166 → 2119
[TX076] Transfer $563: B=6081 → 5518, A=2119 → 2682
[TX077] Transfer $6: B=5518 → 5512, A=2682 → 2688
[TX078] Transfer $157: A=2688 → 2531, B=5512 → 5669
[TX079] Transfer $163: B=5669 → 5506, A=2531 → 2694
[TX080] Transfer $492: B=5506 → 5014, A=2694 → 3186
[TX081] Transfer $608: B=5014 → 4406, A=3186 → 3794
[TX082] Transfer $326: A=3794 → 3468, B=4406 → 4732
[TX083] Transfer $832: A=3468 → 2636, B=4732 → 5564
[TX084] Transfer $329: A=2636 → 2307, B=5564 → 5893
[TX085] Transfer $968: A=2307 → 1339, B=5893 → 6861
[TX086] Thread T1: READ B=6861
[TX087] Thread T2: READ B=6861
[TX088] Thread T1: COMMIT B=6861 → 6702
[TX089] Thread T2: COMMIT B=6861 → 6784
[TX090] Transfer $825: A=1339 → 514, B=6784 → 7609
POSSIBLE BUG TYPES (choose exactly one):
- CALC_ERROR: Mathematical calculation is incorrect
- NEGATIVE_BAL: Account balance becomes negative
- LOST_UPDATE: Concurrent update causes lost transaction
- DUPLICATE_TXN: Same transaction processed multiple times
Identify the SINGLE bug if any exists.
Respond with ONLY a JSON object:
{"bug_type": "<type>", "bug_location": "<TX_ID>"
Your response:
|
LOST_UPDATE
|
TX089
|
Thread T2 overwrites T1's change
|
LOST_UPDATE
| 90
|
{"bug_type": "LOST_UPDATE", "bug_location": "TX089", "explanation": "Thread T2 overwrites T1's change"}
|
{"bug_type": "LOST_UPDATE", "n_ops": 90}
|
57
|
Analyze this banking transaction log for bugs.
Each operation shows the complete state change.
INITIAL STATE:
{
"account_A": 4000,
"account_B": 4200,
"total": 8200
}
RULES:
1. Total money must remain constant (conservation)
2. No account can go negative
3. All calculations must be mathematically correct
TRANSACTION LOG:
[TX001] Transfer $4: A=4000 → 3996, B=4200 → 4204
[TX002] Transfer $35: B=4204 → 4169, A=3996 → 4031
[TX003] Transfer $865: A=4031 → 3166, B=4169 → 5034
[TX004] Transfer $684: B=5034 → 4350, A=3166 → 3850
[TX005] Transfer $171: A=3850 → 3679, B=4350 → 4521
[TX006] Transfer $104: B=4521 → 4417, A=3679 → 3783
[TX007] Transfer $42: A=3783 → 3741, B=4417 → 4459
[TX008] Transfer $810: A=3741 → 2931, B=4459 → 5269
[TX009] Transfer $845: A=2931 → 2086, B=5269 → 6114
[TX010] Transfer $275: B=6114 → 5839, A=2086 → 2361
[TX011] Transfer $853: B=5839 → 4986, A=2361 → 3214
[TX012] Transfer $68: B=4986 → 4918, A=3214 → 3282
[TX013] Transfer $4924: B=4918 → -6, A=3282 → 8206
[TX014] Transfer $623: A=8206 → 7583, B=-6 → 617
[TX015] Transfer $34: A=7583 → 7549, B=617 → 651
[TX016] Transfer $168: B=651 → 483, A=7549 → 7717
[TX017] Transfer $185: B=483 → 298, A=7717 → 7902
[TX018] Transfer $169: B=298 → 129, A=7902 → 8071
[TX019] Transfer $27: B=129 → 102, A=8071 → 8098
[TX020] Transfer $684: A=8098 → 7414, B=102 → 786
[TX021] Transfer $248: B=786 → 538, A=7414 → 7662
[TX022] Transfer $362: B=538 → 176, A=7662 → 8024
[TX023] Transfer $83: A=8024 → 7941, B=176 → 259
[TX024] Transfer $153: A=7941 → 7788, B=259 → 412
[TX025] Transfer $131: A=7788 → 7657, B=412 → 543
[TX026] Transfer $291: A=7657 → 7366, B=543 → 834
[TX027] Transfer $595: B=834 → 239, A=7366 → 7961
[TX028] Transfer $447: A=7961 → 7514, B=239 → 686
[TX029] Transfer $567: B=686 → 119, A=7514 → 8081
[TX030] Transfer $17: B=119 → 102, A=8081 → 8098
[TX031] Transfer $162: A=8098 → 7936, B=102 → 264
[TX032] Transfer $90: B=264 → 174, A=7936 → 8026
[TX033] Transfer $34: A=8026 → 7992, B=174 → 208
[TX034] Transfer $25: B=208 → 183, A=7992 → 8017
[TX035] Transfer $52: B=183 → 131, A=8017 → 8069
[TX036] Transfer $6: B=131 → 125, A=8069 → 8075
[TX037] Transfer $23: B=125 → 102, A=8075 → 8098
[TX038] Transfer $2: B=102 → 100, A=8098 → 8100
[TX039] Transfer $427: A=8100 → 7673, B=100 → 527
[TX040] Transfer $898: A=7673 → 6775, B=527 → 1425
[TX041] Transfer $45: B=1425 → 1380, A=6775 → 6820
[TX042] Transfer $527: A=6820 → 6293, B=1380 → 1907
[TX043] Transfer $931: B=1907 → 976, A=6293 → 7224
[TX044] Transfer $429: A=7224 → 6795, B=976 → 1405
[TX045] Transfer $648: A=6795 → 6147, B=1405 → 2053
[TX046] Transfer $821: B=2053 → 1232, A=6147 → 6968
[TX047] Transfer $4: B=1232 → 1228, A=6968 → 6972
[TX048] Transfer $792: A=6972 → 6180, B=1228 → 2020
[TX049] Transfer $153: A=6180 → 6027, B=2020 → 2173
[TX050] Transfer $545: B=2173 → 1628, A=6027 → 6572
[TX051] Transfer $447: B=1628 → 1181, A=6572 → 7019
[TX052] Transfer $989: A=7019 → 6030, B=1181 → 2170
[TX053] Transfer $47: B=2170 → 2123, A=6030 → 6077
[TX054] Transfer $20: B=2123 → 2103, A=6077 → 6097
[TX055] Transfer $487: B=2103 → 1616, A=6097 → 6584
[TX056] Transfer $938: B=1616 → 678, A=6584 → 7522
[TX057] Transfer $856: A=7522 → 6666, B=678 → 1534
[TX058] Transfer $273: A=6666 → 6393, B=1534 → 1807
[TX059] Transfer $838: B=1807 → 969, A=6393 → 7231
[TX060] Transfer $406: A=7231 → 6825, B=969 → 1375
[TX061] Transfer $545: B=1375 → 830, A=6825 → 7370
[TX062] Transfer $229: A=7370 → 7141, B=830 → 1059
[TX063] Transfer $408: B=1059 → 651, A=7141 → 7549
[TX064] Transfer $50: A=7549 → 7499, B=651 → 701
[TX065] Transfer $550: A=7499 → 6949, B=701 → 1251
[TX066] Transfer $515: B=1251 → 736, A=6949 → 7464
[TX067] Transfer $510: B=736 → 226, A=7464 → 7974
[TX068] Transfer $800: A=7974 → 7174, B=226 → 1026
[TX069] Transfer $949: A=7174 → 6225, B=1026 → 1975
[TX070] Transfer $183: B=1975 → 1792, A=6225 → 6408
[TX071] Transfer $703: A=6408 → 5705, B=1792 → 2495
[TX072] Transfer $338: B=2495 → 2157, A=5705 → 6043
[TX073] Transfer $23: A=6043 → 6020, B=2157 → 2180
[TX074] Transfer $955: A=6020 → 5065, B=2180 → 3135
[TX075] Transfer $675: B=3135 → 2460, A=5065 → 5740
[TX076] Transfer $427: B=2460 → 2033, A=5740 → 6167
[TX077] Transfer $210: A=6167 → 5957, B=2033 → 2243
[TX078] Transfer $101: A=5957 → 5856, B=2243 → 2344
[TX079] Transfer $557: B=2344 → 1787, A=5856 → 6413
POSSIBLE BUG TYPES (choose exactly one):
- CALC_ERROR: Mathematical calculation is incorrect
- NEGATIVE_BAL: Account balance becomes negative
- LOST_UPDATE: Concurrent update causes lost transaction
- DUPLICATE_TXN: Same transaction processed multiple times
Identify the SINGLE bug if any exists.
Respond with ONLY a JSON object:
{"bug_type": "<type>", "bug_location": "<TX_ID>"
Your response:
|
NEGATIVE_BAL
|
TX013
|
Account balance goes negative
|
NEGATIVE_BAL
| 79
|
{"bug_type": "NEGATIVE_BAL", "bug_location": "TX013", "explanation": "Account balance goes negative"}
|
{"bug_type": "NEGATIVE_BAL", "n_ops": 79}
|
93
|
Analyze this banking transaction log for bugs.
Each operation shows the complete state change.
INITIAL STATE:
{
"account_A": 4000,
"account_B": 4200,
"total": 8200
}
RULES:
1. Total money must remain constant (conservation)
2. No account can go negative
3. All calculations must be mathematically correct
TRANSACTION LOG:
[TX001] Transfer $899: B=4200 → 3301, A=4000 → 4899
[TX002] Transfer $993: A=4899 → 3906, B=3301 → 4294
[TX003] Transfer $556: B=4294 → 3738, A=3906 → 4462
[TX004] Transfer $997: A=4462 → 3465, B=3738 → 4735
[TX005] Transfer $140: A=3465 → 3325, B=4735 → 4875
[TX006] Transfer $485: A=3325 → 2840, B=4875 → 5360
[TX007] Transfer $198: B=5360 → 5162, A=2840 → 3038
[TX008] Transfer $361: A=3038 → 2677, B=5162 → 5523
[TX009] Transfer $236: A=2677 → 2441, B=5523 → 5759
[TX010] Transfer $187: A=2441 → 2254, B=5759 → 5946
[TX011] Transfer $292: A=2254 → 1962, B=5946 → 6238
[TX012] Transfer $484: A=1962 → 1478, B=6238 → 6722
[TX013] Transfer $540: B=6722 → 6182, A=1478 → 2018
[TX014] Transfer $622: A=2018 → 1396, B=6182 → 6804
[TX015] Transfer $3: B=6804 → 6801, A=1396 → 1399
[TX016] Transfer $41: B=6801 → 6760, A=1399 → 1440
[TX017] Transfer $621: B=6760 → 6139, A=1440 → 2061
[TX018] Transfer $383: A=2061 → 1678, B=6139 → 6522
[TX019] Transfer $960: A=1678 → 718, B=6522 → 7482
[TX020] Transfer $32: A=718 → 686, B=7482 → 7514
[TX021] Transfer $328: B=7514 → 7186, A=686 → 1014
[TX022] Transfer $170: B=7186 → 7016, A=1014 → 1184
[TX023] Transfer $812: A=1184 → 372, B=7016 → 7828
[TX024] Transfer $122: B=7828 → 7706, A=372 → 494
[TX025] Transfer $571: B=7706 → 7135, A=494 → 1065
[TX026] Transfer $538: A=1065 → 527, B=7135 → 7673
[TX027] Transfer $67: A=527 → 460, B=7673 → 7740
[TX028] Transfer $14: A=460 → 446, B=7740 → 7754
[TX029] Transfer $638: B=7754 → 7116, A=446 → 1084
[TX030] Transfer $250: B=7116 → 6866, A=1084 → 1334
[TX031] Transfer $629: B=6866 → 6237, A=1334 → 1963
[TX032] Transfer $807: B=6237 → 5430, A=1963 → 2770
[TX033] Transfer $296: A=2770 → 2474, B=5430 → 5726
[TX034] Transfer $821: B=5726 → 4905, A=2474 → 3295
[TX035] Transfer $752: B=4905 → 4153, A=3295 → 4047
[TX036] Transfer $181: A=4047 → 3866, B=4153 → 4334
[TX037] Transfer $25: A=3866 → 3841, B=4334 → 4359
[TX038] Transfer $776: B=4359 → 3583, A=3841 → 4617
[TX039] Transfer $936: B=3583 → 2647, A=4617 → 5553
[TX040] Transfer $477: A=5553 → 5076, B=2647 → 3124
[TX041] Transfer $101: A=5076 → 4975, B=3124 → 3225
[TX042] Transfer $258: A=4975 → 4717, B=3225 → 3483
[TX043] Transfer $612: A=4717 → 4105, B=3483 → 4095
[TX044] Transfer $835: A=4105 → 3270, B=4095 → 4930
[TX045] Transfer $982: B=4930 → 3948, A=3270 → 4252
[TX046] Transfer $805: B=3948 → 3143, A=4252 → 5057
[TX047] Transfer $716: B=3143 → 2427, A=5057 → 5773
[TX048] Transfer $193: A=5773 → 5580, B=2427 → 2620
[TX049] Transfer $619: A=5580 → 4961, B=2620 → 3239
[TX050] Transfer $708: B=3239 → 2531, A=4961 → 5669
[TX051] Transfer $917: B=2531 → 1614, A=5669 → 6586
[TX052] Transfer $17: A=6586 → 6569, B=1614 → 1631
[TX053] Transfer $747: B=1631 → 884, A=6569 → 7316
[TX054] Transfer $341: A=7316 → 6975, B=884 → 1225
[TX055] Transfer $248: B=1225 → 977, A=6975 → 7223
[TX056] Transfer $776: A=7223 → 6447, B=977 → 1753
[TX057] Transfer $456: B=1753 → 1297, A=6447 → 6903
[TX058] Transfer $410: A=6903 → 6493, B=1297 → 1707
[TX059] Transfer $456: B=1707 → 1251, A=6493 → 6949
[TX060] Transfer $950: B=1251 → 301, A=6949 → 7899
[TX061] Transfer $681: A=7899 → 7218, B=301 → 982
[TX062] Transfer $603: A=7218 → 6615, B=982 → 1585
[TX063] Transfer $368: A=6615 → 6247, B=1585 → 1953
[TX064] Transfer $526: A=6247 → 5721, B=1953 → 2479
[TX065] Transfer $492: B=2479 → 1987, A=5721 → 6213
[TX066] Transfer $657: B=1987 → 1330, A=6213 → 6870
[TX067] Transfer $277: B=1330 → 1053, A=6870 → 7147
[TX068] Transfer $794: B=1053 → 259, A=7147 → 7941
[TX069] Transfer $84: B=259 → 175, A=7941 → 8025
[TX070] Transfer $693: A=8025 → 7332, B=175 → 868
[TX071] Transfer $763: A=7332 → 6569, B=868 → 1631
[TX072] Transfer $180: A=6569 → 6389, B=1631 → 1811
[TX073] Transfer $526: A=6389 → 5863, B=1811 → 2337
[TX074] Transfer $282: A=5863 → 5581, B=2337 → 2619
[TX075] Transfer $728: A=5581 → 4853, B=2619 → 3347
[TX076] Transfer $115: A=4853 → 4738, B=3347 → 3462
[TX077] Transfer $254: B=3462 → 3208, A=4738 → 4992
[TX078] Transfer $337: B=3208 → 2871, A=4992 → 5329
[TX079] Transfer $471: B=2871 → 2400, A=5329 → 5800
[TX080] Transfer $395: B=2400 → 2005, A=5800 → 6195
[TX081] Transfer $578: A=6195 → 5617, B=2005 → 2583
[TX082] Transfer $168: B=2583 → 2415, A=5617 → 5785
[TX083] Transfer $379: B=2415 → 2036, A=5785 → 6164
[TX084] Transfer $246: B=2036 → 1790, A=6164 → 6410
[TX085] Transfer $674: A=6410 → 5736, B=1790 → 2464
[TX086] Transfer $693: A=5736 → 5043, B=2464 → 3157
[TX087] Transfer $187: B=3157 → 2970, A=5043 → 5230
[TX088] Transfer $331: A=5230 → 4899, B=2970 → 3301
[TX089] Transfer $233: A=4899 → 4666, B=3301 → 3534
[TX090] Transfer $22: A=4666 → 4644, B=3534 → 3556
[TX091] Transfer $4657: A=4644 → -13, B=3556 → 8213
[TX092] Balance check: A=-13
[TX093] Transfer $103: B=8213 → 8110, A=-13 → 90
[TX094] Transfer $976: B=8110 → 7134, A=90 → 1066
[TX095] Transfer $851: A=1066 → 215, B=7134 → 7985
[TX096] Transfer $40: A=215 → 175, B=7985 → 8025
[TX097] Transfer $61: A=175 → 114, B=8025 → 8086
POSSIBLE BUG TYPES (choose exactly one):
- CALC_ERROR: Mathematical calculation is incorrect
- NEGATIVE_BAL: Account balance becomes negative
- LOST_UPDATE: Concurrent update causes lost transaction
- DUPLICATE_TXN: Same transaction processed multiple times
Identify the SINGLE bug if any exists.
Respond with ONLY a JSON object:
{"bug_type": "<type>", "bug_location": "<TX_ID>"
Your response:
|
NEGATIVE_BAL
|
TX091
|
Account balance goes negative
|
NEGATIVE_BAL
| 97
|
{"bug_type": "NEGATIVE_BAL", "bug_location": "TX091", "explanation": "Account balance goes negative"}
|
{"bug_type": "NEGATIVE_BAL", "n_ops": 97}
|
53
|
Analyze this banking transaction log for bugs.
Each operation shows the complete state change.
INITIAL STATE:
{
"account_A": 4000,
"account_B": 4200,
"total": 8200
}
RULES:
1. Total money must remain constant (conservation)
2. No account can go negative
3. All calculations must be mathematically correct
TRANSACTION LOG:
[TX001] Transfer $82: A=4000 → 3918, B=4200 → 4282
[TX002] Transfer $796: B=4282 → 3486, A=3918 → 4714
[TX003] Transfer $642: A=4714 → 4072, B=3486 → 4128
[TX004] Transfer $610: B=4128 → 3518, A=4072 → 4682
[TX005] Transfer $112: B=3518 → 3406, A=4682 → 4796
[TX006] Transfer $204: B=3406 → 3202, A=4794 → 4998
[TX007] Transfer $168: B=3202 → 3034, A=4998 → 5166
[TX008] Transfer $981: A=5166 → 4185, B=3034 → 4015
[TX009] Transfer $55: A=4185 → 4130, B=4015 → 4070
[TX010] Transfer $379: B=4070 → 3691, A=4130 → 4509
[TX011] Transfer $853: A=4509 → 3656, B=3691 → 4544
[TX012] Transfer $645: B=4544 → 3899, A=3656 → 4301
[TX013] Transfer $407: B=3899 → 3492, A=4301 → 4708
[TX014] Transfer $629: A=4708 → 4079, B=3492 → 4121
[TX015] Transfer $333: A=4079 → 3746, B=4121 → 4454
[TX016] Transfer $742: A=3746 → 3004, B=4454 → 5196
[TX017] Transfer $67: A=3004 → 2937, B=5196 → 5263
[TX018] Transfer $157: A=2937 → 2780, B=5263 → 5420
[TX019] Transfer $964: A=2780 → 1816, B=5420 → 6384
[TX020] Transfer $774: A=1816 → 1042, B=6384 → 7158
[TX021] Transfer $348: B=7158 → 6810, A=1042 → 1390
[TX022] Transfer $353: A=1390 → 1037, B=6810 → 7163
[TX023] Transfer $412: A=1037 → 625, B=7163 → 7575
[TX024] Transfer $407: A=625 → 218, B=7575 → 7982
[TX025] Transfer $106: A=218 → 112, B=7982 → 8088
[TX026] Transfer $4: A=112 → 108, B=8088 → 8092
[TX027] Transfer $3: A=108 → 105, B=8092 → 8095
[TX028] Transfer $2: A=105 → 103, B=8095 → 8097
[TX029] Transfer $3: A=103 → 100, B=8097 → 8100
[TX030] Balance check: A=100
[TX031] Balance check: A=100
[TX032] Balance check: A=100
[TX033] Transfer $398: B=8100 → 7702, A=100 → 498
[TX034] Transfer $524: B=7702 → 7178, A=498 → 1022
[TX035] Transfer $26: B=7178 → 7152, A=1022 → 1048
[TX036] Transfer $43: B=7152 → 7109, A=1048 → 1091
[TX037] Transfer $215: A=1091 → 876, B=7109 → 7324
[TX038] Transfer $9: A=876 → 867, B=7324 → 7333
[TX039] Transfer $597: B=7333 → 6736, A=867 → 1464
[TX040] Transfer $408: B=6736 → 6328, A=1464 → 1872
[TX041] Transfer $551: A=1872 → 1321, B=6328 → 6879
[TX042] Transfer $274: A=1321 → 1047, B=6879 → 7153
[TX043] Transfer $165: B=7153 → 6988, A=1047 → 1212
[TX044] Transfer $344: A=1212 → 868, B=6988 → 7332
[TX045] Transfer $268: A=868 → 600, B=7332 → 7600
[TX046] Transfer $668: B=7600 → 6932, A=600 → 1268
[TX047] Transfer $31: B=6932 → 6901, A=1268 → 1299
[TX048] Transfer $211: B=6901 → 6690, A=1299 → 1510
[TX049] Transfer $44: A=1510 → 1466, B=6690 → 6734
[TX050] Transfer $762: B=6734 → 5972, A=1466 → 2228
[TX051] Transfer $779: A=2228 → 1449, B=5972 → 6751
[TX052] Transfer $909: B=6751 → 5842, A=1449 → 2358
[TX053] Transfer $476: B=5842 → 5366, A=2358 → 2834
[TX054] Transfer $582: A=2834 → 2252, B=5366 → 5948
[TX055] Transfer $525: B=5948 → 5423, A=2252 → 2777
[TX056] Transfer $14: A=2777 → 2763, B=5423 → 5437
[TX057] Transfer $883: A=2763 → 1880, B=5437 → 6320
[TX058] Transfer $513: B=6320 → 5807, A=1880 → 2393
[TX059] Transfer $470: B=5807 → 5337, A=2393 → 2863
[TX060] Transfer $944: B=5337 → 4393, A=2863 → 3807
[TX061] Transfer $576: B=4393 → 3817, A=3807 → 4383
[TX062] Transfer $81: B=3817 → 3736, A=4383 → 4464
[TX063] Transfer $875: A=4464 → 3589, B=3736 → 4611
[TX064] Transfer $879: A=3589 → 2710, B=4611 → 5490
[TX065] Transfer $954: A=2710 → 1756, B=5490 → 6444
[TX066] Transfer $457: A=1756 → 1299, B=6444 → 6901
[TX067] Transfer $101: B=6901 → 6800, A=1299 → 1400
[TX068] Transfer $222: A=1400 → 1178, B=6800 → 7022
[TX069] Transfer $761: A=1178 → 417, B=7022 → 7783
[TX070] Transfer $288: B=7783 → 7495, A=417 → 705
[TX071] Transfer $306: B=7495 → 7189, A=705 → 1011
[TX072] Transfer $311: A=1011 → 700, B=7189 → 7500
[TX073] Transfer $469: A=700 → 231, B=7500 → 7969
[TX074] Transfer $9: A=231 → 222, B=7969 → 7978
[TX075] Transfer $16: B=7978 → 7962, A=222 → 238
[TX076] Transfer $62: A=238 → 176, B=7962 → 8024
[TX077] Transfer $278: B=8024 → 7746, A=176 → 454
[TX078] Transfer $34: A=454 → 420, B=7746 → 7780
[TX079] Transfer $35: A=420 → 385, B=7780 → 7815
[TX080] Transfer $32: B=7815 → 7783, A=385 → 417
[TX081] Transfer $223: A=417 → 194, B=7783 → 8006
[TX082] Transfer $181: B=8006 → 7825, A=194 → 375
[TX083] Transfer $34: A=375 → 341, B=7825 → 7859
[TX084] Transfer $738: B=7859 → 7121, A=341 → 1079
[TX085] Transfer $823: B=7121 → 6298, A=1079 → 1902
[TX086] Transfer $689: B=6298 → 5609, A=1902 → 2591
[TX087] Transfer $242: B=5609 → 5367, A=2591 → 2833
[TX088] Transfer $667: B=5367 → 4700, A=2833 → 3500
[TX089] Transfer $574: A=3500 → 2926, B=4700 → 5274
[TX090] Transfer $734: B=5274 → 4540, A=2926 → 3660
[TX091] Transfer $374: A=3660 → 3286, B=4540 → 4914
[TX092] Transfer $469: A=3286 → 2817, B=4914 → 5383
[TX093] Transfer $384: B=5383 → 4999, A=2817 → 3201
[TX094] Transfer $330: B=4999 → 4669, A=3201 → 3531
[TX095] Transfer $180: B=4669 → 4489, A=3531 → 3711
[TX096] Transfer $480: B=4489 → 4009, A=3711 → 4191
[TX097] Transfer $153: B=4009 → 3856, A=4191 → 4344
[TX098] Transfer $370: B=3856 → 3486, A=4344 → 4714
[TX099] Transfer $618: B=3486 → 2868, A=4714 → 5332
[TX100] Transfer $342: B=2868 → 2526, A=5332 → 5674
[TX101] Transfer $463: B=2526 → 2063, A=5674 → 6137
[TX102] Transfer $353: A=6137 → 5784, B=2063 → 2416
[TX103] Transfer $555: A=5784 → 5229, B=2416 → 2971
[TX104] Transfer $837: A=5229 → 4392, B=2971 → 3808
[TX105] Transfer $85: A=4392 → 4307, B=3808 → 3893
[TX106] Transfer $515: B=3893 → 3378, A=4307 → 4822
[TX107] Transfer $591: A=4822 → 4231, B=3378 → 3969
[TX108] Transfer $958: A=4231 → 3273, B=3969 → 4927
[TX109] Transfer $702: A=3273 → 2571, B=4927 → 5629
[TX110] Transfer $121: B=5629 → 5508, A=2571 → 2692
[TX111] Transfer $563: B=5508 → 4945, A=2692 → 3255
[TX112] Transfer $226: B=4945 → 4719, A=3255 → 3481
[TX113] Transfer $706: B=4719 → 4013, A=3481 → 4187
[TX114] Transfer $657: A=4187 → 3530, B=4013 → 4670
POSSIBLE BUG TYPES (choose exactly one):
- CALC_ERROR: Mathematical calculation is incorrect
- NEGATIVE_BAL: Account balance becomes negative
- LOST_UPDATE: Concurrent update causes lost transaction
- DUPLICATE_TXN: Same transaction processed multiple times
Identify the SINGLE bug if any exists.
Respond with ONLY a JSON object:
{"bug_type": "<type>", "bug_location": "<TX_ID>"
Your response:
|
CALC_ERROR
|
TX005
|
Mathematical calculation is incorrect
|
CALC_ERROR
| 114
|
{"bug_type": "CALC_ERROR", "bug_location": "TX005", "explanation": "Mathematical calculation is incorrect"}
|
{"bug_type": "CALC_ERROR", "n_ops": 114}
|
89
|
Analyze this banking transaction log for bugs.
Each operation shows the complete state change.
INITIAL STATE:
{
"account_A": 4000,
"account_B": 4200,
"total": 8200
}
RULES:
1. Total money must remain constant (conservation)
2. No account can go negative
3. All calculations must be mathematically correct
TRANSACTION LOG:
[TX001] Transfer $911: B=4200 → 3289, A=4000 → 4911
[TX002] Transfer $145: B=3289 → 3144, A=4911 → 5056
[TX003] Transfer $174: B=3144 → 2970, A=5056 → 5230
[TX004] Transfer $152: B=2970 → 2818, A=5230 → 5382
[TX005] Transfer $994: A=5382 → 4388, B=2818 → 3812
[TX006] Transfer $935: A=4388 → 3453, B=3812 → 4747
[TX007] Transfer $535: A=3453 → 2918, B=4747 → 5282
[TX008] Transfer $481: B=5282 → 4801, A=2918 → 3399
[TX009] Transfer $159: A=3399 → 3240, B=4801 → 4960
[TX010] Transfer $100: A=3240 → 3140, B=4960 → 5060
[TX011] Transfer $484: B=5060 → 4576, A=3140 → 3624
[TX012] Transfer $473: B=4576 → 4103, A=3624 → 4097
[TX013] Transfer $980: B=4103 → 3123, A=4097 → 5077
[TX014] Transfer $70: A=5077 → 5007, B=3123 → 3193
[TX015] Transfer $932: B=3193 → 2261, A=5007 → 5939
[TX016] Transfer $5: A=5939 → 5934, B=2261 → 2266
[TX017] Transfer $807: A=5934 → 5127, B=2266 → 3073
[TX018] Transfer $110: B=3073 → 2963, A=5127 → 5237
[TX019] Transfer $252: B=2963 → 2711, A=5237 → 5489
[TX020] Transfer $996: A=5489 → 4493, B=2711 → 3707
[TX021] Transfer $756: B=3707 → 2951, A=4493 → 5249
[TX022] Transfer $735: B=2951 → 2216, A=5249 → 5984
[TX023] Transfer $472: B=2216 → 1744, A=5984 → 6456
[TX024] Transfer $301: B=1744 → 1443, A=6456 → 6757
[TX025] Transfer $871: A=6757 → 5886, B=1443 → 2314
[TX026] Transfer $718: B=2314 → 1596, A=5886 → 6604
[TX027] Transfer $414: A=6604 → 6190, B=1596 → 2010
[TX028] Transfer $674: A=6190 → 5516, B=2010 → 2684
[TX029] Thread T1: READ A=5516
[TX030] Thread T2: READ A=5516
[TX031] Thread T1: COMMIT A=5516 → 5371
[TX032] Thread T2: COMMIT A=5516 → 5443
[TX033] Transfer $555: A=5443 → 4888, B=2684 → 3239
[TX034] Transfer $799: A=4888 → 4089, B=3239 → 4038
[TX035] Transfer $845: A=4089 → 3244, B=4038 → 4883
[TX036] Transfer $578: B=4883 → 4305, A=3244 → 3822
[TX037] Transfer $639: B=4305 → 3666, A=3822 → 4461
[TX038] Transfer $952: A=4461 → 3509, B=3666 → 4618
[TX039] Transfer $138: A=3509 → 3371, B=4618 → 4756
[TX040] Transfer $227: B=4756 → 4529, A=3371 → 3598
[TX041] Transfer $463: B=4529 → 4066, A=3598 → 4061
[TX042] Transfer $907: A=4061 → 3154, B=4066 → 4973
[TX043] Transfer $484: A=3154 → 2670, B=4973 → 5457
[TX044] Transfer $727: A=2670 → 1943, B=5457 → 6184
[TX045] Transfer $845: B=6184 → 5339, A=1943 → 2788
[TX046] Transfer $58: B=5339 → 5281, A=2788 → 2846
[TX047] Transfer $459: B=5281 → 4822, A=2846 → 3305
[TX048] Transfer $74: B=4822 → 4748, A=3305 → 3379
[TX049] Transfer $510: B=4748 → 4238, A=3379 → 3889
[TX050] Transfer $209: B=4238 → 4029, A=3889 → 4098
[TX051] Transfer $865: A=4098 → 3233, B=4029 → 4894
[TX052] Transfer $475: B=4894 → 4419, A=3233 → 3708
[TX053] Transfer $599: A=3708 → 3109, B=4419 → 5018
[TX054] Transfer $507: A=3109 → 2602, B=5018 → 5525
[TX055] Transfer $380: A=2602 → 2222, B=5525 → 5905
[TX056] Transfer $416: B=5905 → 5489, A=2222 → 2638
[TX057] Transfer $565: A=2638 → 2073, B=5489 → 6054
[TX058] Transfer $212: B=6054 → 5842, A=2073 → 2285
[TX059] Transfer $984: A=2285 → 1301, B=5842 → 6826
[TX060] Transfer $410: A=1301 → 891, B=6826 → 7236
[TX061] Transfer $245: A=891 → 646, B=7236 → 7481
[TX062] Transfer $186: B=7481 → 7295, A=646 → 832
[TX063] Transfer $649: A=832 → 183, B=7295 → 7944
[TX064] Transfer $562: B=7944 → 7382, A=183 → 745
[TX065] Transfer $582: A=745 → 163, B=7382 → 7964
[TX066] Transfer $525: B=7964 → 7439, A=163 → 688
[TX067] Transfer $502: A=688 → 186, B=7439 → 7941
[TX068] Transfer $51: A=186 → 135, B=7941 → 7992
[TX069] Transfer $5: A=135 → 130, B=7992 → 7997
[TX070] Transfer $226: B=7997 → 7771, A=130 → 356
[TX071] Transfer $605: B=7771 → 7166, A=356 → 961
[TX072] Transfer $568: A=961 → 393, B=7166 → 7734
[TX073] Transfer $142: A=393 → 251, B=7734 → 7876
[TX074] Transfer $624: B=7876 → 7252, A=251 → 875
[TX075] Transfer $250: B=7252 → 7002, A=875 → 1125
[TX076] Transfer $432: B=7002 → 6570, A=1125 → 1557
[TX077] Transfer $473: B=6570 → 6097, A=1557 → 2030
[TX078] Transfer $999: B=6097 → 5098, A=2030 → 3029
[TX079] Transfer $364: A=3029 → 2665, B=5098 → 5462
[TX080] Transfer $821: B=5462 → 4641, A=2665 → 3486
[TX081] Transfer $243: B=4641 → 4398, A=3486 → 3729
[TX082] Transfer $862: A=3729 → 2867, B=4398 → 5260
[TX083] Transfer $332: A=2867 → 2535, B=5260 → 5592
[TX084] Transfer $649: B=5592 → 4943, A=2535 → 3184
[TX085] Transfer $452: A=3184 → 2732, B=4943 → 5395
[TX086] Transfer $132: A=2732 → 2600, B=5395 → 5527
[TX087] Transfer $634: A=2600 → 1966, B=5527 → 6161
[TX088] Transfer $729: A=1966 → 1237, B=6161 → 6890
[TX089] Transfer $47: B=6890 → 6843, A=1237 → 1284
[TX090] Transfer $523: B=6843 → 6320, A=1284 → 1807
[TX091] Transfer $997: A=1807 → 810, B=6320 → 7317
[TX092] Transfer $67: A=810 → 743, B=7317 → 7384
POSSIBLE BUG TYPES (choose exactly one):
- CALC_ERROR: Mathematical calculation is incorrect
- NEGATIVE_BAL: Account balance becomes negative
- LOST_UPDATE: Concurrent update causes lost transaction
- DUPLICATE_TXN: Same transaction processed multiple times
Identify the SINGLE bug if any exists.
Respond with ONLY a JSON object:
{"bug_type": "<type>", "bug_location": "<TX_ID>"
Your response:
|
LOST_UPDATE
|
TX032
|
Thread T2 overwrites T1's change
|
LOST_UPDATE
| 92
|
{"bug_type": "LOST_UPDATE", "bug_location": "TX032", "explanation": "Thread T2 overwrites T1's change"}
|
{"bug_type": "LOST_UPDATE", "n_ops": 92}
|
25
|
Analyze this banking transaction log for bugs.
Each operation shows the complete state change.
INITIAL STATE:
{
"account_A": 4000,
"account_B": 4200,
"total": 8200
}
RULES:
1. Total money must remain constant (conservation)
2. No account can go negative
3. All calculations must be mathematically correct
TRANSACTION LOG:
[TX001] Transfer $151: A=4000 → 3849, B=4200 → 4351
[TX002] Transfer $901: B=4351 → 3450, A=3849 → 4750
[TX003] Transfer $169: A=4750 → 4581, B=3450 → 3619
[TX004] Transfer $371: A=4581 → 4210, B=3619 → 3990
[TX005] Transfer $51: B=3990 → 3939, A=4210 → 4261
[TX006] Transfer $544: B=3939 → 3395, A=4261 → 4805
[TX007] Transfer $786: A=4805 → 4019, B=3395 → 4181
[TX008] Transfer $615: A=4019 → 3404, B=4181 → 4796
[TX009] Transfer $895: A=3404 → 2509, B=4796 → 5691
[TX010] Transfer $279: B=5691 → 5412, A=2509 → 2788
[TX011] Transfer $549: B=5412 → 4863, A=2788 → 3337
[TX012] Transfer $15: B=4863 → 4848, A=3337 → 3352
[TX013] Transfer $383: A=3352 → 2969, B=4848 → 5231
[TX014] Transfer $350: B=5231 → 4881, A=2969 → 3319
[TX015] Transfer $225: A=3319 → 3094, B=4881 → 5106
[TX016] Transfer $853: A=3094 → 2241, B=5106 → 5959
[TX017] Transfer $429: A=2241 → 1812, B=5959 → 6388
[TX018] Transfer $121: B=6388 → 6267, A=1812 → 1933
[TX019] Transfer $493: A=1933 → 1440, B=6267 → 6760
[TX020] Transfer $709: B=6760 → 6051, A=1440 → 2149
[TX021] Transfer $838: B=6051 → 5213, A=2149 → 2987
[TX022] Transfer $178: B=5213 → 5035, A=2987 → 3165
[TX023] Transfer $764: B=5035 → 4271, A=3165 → 3929
[TX024] Transfer $133: A=3929 → 3796, B=4271 → 4404
[TX025] Transfer $316: A=3796 → 3480, B=4404 → 4720
[TX026] Transfer $135: A=3480 → 3345, B=4720 → 4855
[TX027] Transfer $709: A=3345 → 2636, B=4855 → 5564
[TX028] Transfer $21: A=2636 → 2615, B=5564 → 5585
[TX029] Transfer $45: B=5585 → 5540, A=2615 → 2660
[TX030] Transfer $35: A=2660 → 2625, B=5540 → 5575
[TX031] Transfer $123: A=2625 → 2502, B=5575 → 5698
[TX032] Transfer $69: B=5698 → 5629, A=2502 → 2571
[TX033] Transfer $774: B=5629 → 4855, A=2571 → 3345
[TX034] Thread T1: READ A=3345
[TX035] Thread T2: READ A=3345
[TX036] Thread T1: COMMIT A=3345 → 3264
[TX037] Thread T2: COMMIT A=3345 → 3243
[TX038] Transfer $688: A=3243 → 2555, B=4855 → 5543
[TX039] Transfer $94: B=5543 → 5449, A=2555 → 2649
[TX040] Transfer $973: A=2649 → 1676, B=5449 → 6422
[TX041] Transfer $166: B=6422 → 6256, A=1676 → 1842
[TX042] Transfer $103: A=1842 → 1739, B=6256 → 6359
[TX043] Transfer $734: A=1739 → 1005, B=6359 → 7093
[TX044] Transfer $177: A=1005 → 828, B=7093 → 7270
[TX045] Transfer $221: A=828 → 607, B=7270 → 7491
[TX046] Transfer $716: B=7491 → 6775, A=607 → 1323
[TX047] Transfer $691: A=1323 → 632, B=6775 → 7466
[TX048] Transfer $365: A=632 → 267, B=7466 → 7831
[TX049] Transfer $221: B=7831 → 7610, A=267 → 488
[TX050] Transfer $59: A=488 → 429, B=7610 → 7669
[TX051] Transfer $479: B=7669 → 7190, A=429 → 908
[TX052] Transfer $509: A=908 → 399, B=7190 → 7699
[TX053] Transfer $572: B=7699 → 7127, A=399 → 971
[TX054] Transfer $337: A=971 → 634, B=7127 → 7464
[TX055] Transfer $396: B=7464 → 7068, A=634 → 1030
[TX056] Transfer $616: B=7068 → 6452, A=1030 → 1646
[TX057] Transfer $233: B=6452 → 6219, A=1646 → 1879
[TX058] Transfer $877: B=6219 → 5342, A=1879 → 2756
[TX059] Transfer $879: B=5342 → 4463, A=2756 → 3635
[TX060] Transfer $963: A=3635 → 2672, B=4463 → 5426
[TX061] Transfer $15: B=5426 → 5411, A=2672 → 2687
[TX062] Transfer $407: B=5411 → 5004, A=2687 → 3094
[TX063] Transfer $124: B=5004 → 4880, A=3094 → 3218
[TX064] Transfer $412: A=3218 → 2806, B=4880 → 5292
[TX065] Transfer $68: A=2806 → 2738, B=5292 → 5360
[TX066] Transfer $348: B=5360 → 5012, A=2738 → 3086
[TX067] Transfer $127: A=3086 → 2959, B=5012 → 5139
[TX068] Transfer $744: A=2959 → 2215, B=5139 → 5883
[TX069] Transfer $785: B=5883 → 5098, A=2215 → 3000
[TX070] Transfer $366: B=5098 → 4732, A=3000 → 3366
[TX071] Transfer $498: B=4732 → 4234, A=3366 → 3864
[TX072] Transfer $788: B=4234 → 3446, A=3864 → 4652
[TX073] Transfer $127: B=3446 → 3319, A=4652 → 4779
[TX074] Transfer $511: B=3319 → 2808, A=4779 → 5290
[TX075] Transfer $32: A=5290 → 5258, B=2808 → 2840
[TX076] Transfer $852: A=5258 → 4406, B=2840 → 3692
[TX077] Transfer $696: A=4406 → 3710, B=3692 → 4388
[TX078] Transfer $393: A=3710 → 3317, B=4388 → 4781
[TX079] Transfer $312: B=4781 → 4469, A=3317 → 3629
[TX080] Transfer $678: A=3629 → 2951, B=4469 → 5147
[TX081] Transfer $208: B=5147 → 4939, A=2951 → 3159
[TX082] Transfer $504: B=4939 → 4435, A=3159 → 3663
[TX083] Transfer $830: B=4435 → 3605, A=3663 → 4493
[TX084] Transfer $442: A=4493 → 4051, B=3605 → 4047
[TX085] Transfer $462: A=4051 → 3589, B=4047 → 4509
[TX086] Transfer $455: B=4509 → 4054, A=3589 → 4044
[TX087] Transfer $35: B=4054 → 4019, A=4044 → 4079
[TX088] Transfer $907: A=4079 → 3172, B=4019 → 4926
[TX089] Transfer $443: A=3172 → 2729, B=4926 → 5369
[TX090] Transfer $734: A=2729 → 1995, B=5369 → 6103
[TX091] Transfer $784: B=6103 → 5319, A=1995 → 2779
[TX092] Transfer $677: A=2779 → 2102, B=5319 → 5996
[TX093] Transfer $577: B=5996 → 5419, A=2102 → 2679
POSSIBLE BUG TYPES (choose exactly one):
- CALC_ERROR: Mathematical calculation is incorrect
- NEGATIVE_BAL: Account balance becomes negative
- LOST_UPDATE: Concurrent update causes lost transaction
- DUPLICATE_TXN: Same transaction processed multiple times
Identify the SINGLE bug if any exists.
Respond with ONLY a JSON object:
{"bug_type": "<type>", "bug_location": "<TX_ID>"
Your response:
|
LOST_UPDATE
|
TX037
|
Thread T2 overwrites T1's change
|
LOST_UPDATE
| 93
|
{"bug_type": "LOST_UPDATE", "bug_location": "TX037", "explanation": "Thread T2 overwrites T1's change"}
|
{"bug_type": "LOST_UPDATE", "n_ops": 93}
|
71
|
Analyze this banking transaction log for bugs.
Each operation shows the complete state change.
INITIAL STATE:
{
"account_A": 4000,
"account_B": 4200,
"total": 8200
}
RULES:
1. Total money must remain constant (conservation)
2. No account can go negative
3. All calculations must be mathematically correct
TRANSACTION LOG:
[TX001] Transfer $759: B=4200 → 3441, A=4000 → 4759
[TX002] Transfer $656: B=3441 → 2785, A=4759 → 5415
[TX003] Transfer $931: A=5415 → 4484, B=2785 → 3716
[TX004] Transfer $271: A=4484 → 4213, B=3716 → 3987
[TX005] Transfer $575: A=4213 → 3638, B=3987 → 4562
[TX006] Transfer $910: B=4562 → 3652, A=3638 → 4548
[TX007] Transfer $971: A=4548 → 3577, B=3652 → 4623
[TX008] Transfer $912: B=4623 → 3711, A=3577 → 4489
[TX009] Transfer $375: B=3711 → 3336, A=4489 → 4864
[TX010] Transfer $253: A=4864 → 4611, B=3336 → 3589
[TX011] Transfer $974: B=3589 → 2615, A=4611 → 5585
[TX012] Transfer $81: A=5585 → 5504, B=2615 → 2696
[TX013] Transfer $870: A=5504 → 4634, B=2696 → 3566
[TX014] Transfer $30: B=3566 → 3536, A=4634 → 4664
[TX015] Transfer $380: B=3536 → 3156, A=4664 → 5044
[TX016] Transfer $940: B=3156 → 2216, A=5044 → 5984
[TX017] Transfer $340: B=2216 → 1876, A=5984 → 6324
[TX018] Transfer $602: B=1876 → 1274, A=6324 → 6926
[TX019] Transfer $971: B=1274 → 303, A=6926 → 7897
[TX020] Transfer $992: A=7897 → 6905, B=303 → 1295
[TX021] Transfer $381: A=6905 → 6524, B=1295 → 1676
[TX022] Transfer $404: B=1676 → 1272, A=6524 → 6928
[TX023] Transfer $987: B=1272 → 285, A=6928 → 7915
[TX024] Transfer $215: A=7915 → 7700, B=285 → 500
[TX025] Transfer $42: B=500 → 458, A=7700 → 7742
[TX026] Transfer $294: A=7742 → 7448, B=458 → 752
[TX027] Transfer $550: B=752 → 202, A=7448 → 7998
[TX028] Transfer $949: A=7998 → 7049, B=202 → 1151
[TX029] Transfer $836: B=1151 → 315, A=7049 → 7885
[TX030] Transfer $196: B=315 → 119, A=7885 → 8081
[TX031] Transfer $12: B=119 → 107, A=8081 → 8093
[TX032] Transfer $5: B=107 → 102, A=8093 → 8098
[TX033] Transfer $2: B=102 → 100, A=8098 → 8100
[TX034] Transfer $15: A=8100 → 8085, B=100 → 115
[TX035] Transfer $4: B=115 → 111, A=8085 → 8089
[TX036] Transfer $797: A=8089 → 7292, B=111 → 908
[TX037] Transfer $187: A=7292 → 7105, B=908 → 1095
[TX038] Transfer $957: B=1095 → 138, A=7105 → 8062
[TX039] Transfer $18: B=138 → 120, A=8062 → 8080
[TX040] Transfer $813: A=8080 → 7267, B=120 → 933
[TX041] Payment PAY1018: Transfer $838: A=7267 → 6429, B=933 → 1771
[TX042] Transfer $797: A=6429 → 5632, B=1771 → 2568
[TX043] Transfer $220: B=2568 → 2348, A=5632 → 5852
[TX044] Transfer $582: A=5852 → 5270, B=2348 → 2930
[TX045] Transfer $675: B=2930 → 2255, A=5270 → 5945
[TX046] Transfer $108: B=2255 → 2147, A=5945 → 6053
[TX047] Payment PAY1018: Transfer $838: A=6053 → 5215, B=2147 → 2985
[TX048] Transfer $548: A=5215 → 4667, B=2985 → 3533
[TX049] Transfer $964: A=4667 → 3703, B=3533 → 4497
[TX050] Transfer $147: B=4497 → 4350, A=3703 → 3850
[TX051] Transfer $379: A=3850 → 3471, B=4350 → 4729
[TX052] Transfer $940: B=4729 → 3789, A=3471 → 4411
[TX053] Transfer $162: B=3789 → 3627, A=4411 → 4573
[TX054] Transfer $837: A=4573 → 3736, B=3627 → 4464
[TX055] Transfer $445: B=4464 → 4019, A=3736 → 4181
[TX056] Transfer $275: B=4019 → 3744, A=4181 → 4456
[TX057] Transfer $117: B=3744 → 3627, A=4456 → 4573
[TX058] Transfer $660: B=3627 → 2967, A=4573 → 5233
[TX059] Transfer $710: A=5233 → 4523, B=2967 → 3677
[TX060] Transfer $898: B=3677 → 2779, A=4523 → 5421
[TX061] Transfer $928: A=5421 → 4493, B=2779 → 3707
[TX062] Transfer $465: B=3707 → 3242, A=4493 → 4958
[TX063] Transfer $411: A=4958 → 4547, B=3242 → 3653
[TX064] Transfer $194: B=3653 → 3459, A=4547 → 4741
[TX065] Transfer $5: A=4741 → 4736, B=3459 → 3464
[TX066] Transfer $934: A=4736 → 3802, B=3464 → 4398
[TX067] Transfer $949: A=3802 → 2853, B=4398 → 5347
[TX068] Transfer $835: B=5347 → 4512, A=2853 → 3688
[TX069] Transfer $27: B=4512 → 4485, A=3688 → 3715
[TX070] Transfer $666: B=4485 → 3819, A=3715 → 4381
[TX071] Transfer $27: A=4381 → 4354, B=3819 → 3846
[TX072] Transfer $878: A=4354 → 3476, B=3846 → 4724
[TX073] Transfer $69: A=3476 → 3407, B=4724 → 4793
[TX074] Transfer $329: B=4793 → 4464, A=3407 → 3736
[TX075] Transfer $124: B=4464 → 4340, A=3736 → 3860
[TX076] Transfer $620: B=4340 → 3720, A=3860 → 4480
[TX077] Transfer $992: B=3720 → 2728, A=4480 → 5472
[TX078] Transfer $783: A=5472 → 4689, B=2728 → 3511
[TX079] Transfer $508: B=3511 → 3003, A=4689 → 5197
[TX080] Transfer $205: A=5197 → 4992, B=3003 → 3208
[TX081] Transfer $389: A=4992 → 4603, B=3208 → 3597
[TX082] Transfer $728: B=3597 → 2869, A=4603 → 5331
[TX083] Transfer $182: A=5331 → 5149, B=2869 → 3051
[TX084] Transfer $591: A=5149 → 4558, B=3051 → 3642
[TX085] Transfer $354: B=3642 → 3288, A=4558 → 4912
[TX086] Transfer $991: A=4912 → 3921, B=3288 → 4279
[TX087] Transfer $933: B=4279 → 3346, A=3921 → 4854
[TX088] Transfer $175: A=4854 → 4679, B=3346 → 3521
[TX089] Transfer $234: A=4679 → 4445, B=3521 → 3755
[TX090] Transfer $3: A=4445 → 4442, B=3755 → 3758
[TX091] Transfer $875: B=3758 → 2883, A=4442 → 5317
[TX092] Transfer $802: B=2883 → 2081, A=5317 → 6119
[TX093] Transfer $134: B=2081 → 1947, A=6119 → 6253
[TX094] Transfer $439: A=6253 → 5814, B=1947 → 2386
[TX095] Transfer $997: A=5814 → 4817, B=2386 → 3383
[TX096] Transfer $408: A=4817 → 4409, B=3383 → 3791
[TX097] Transfer $566: A=4409 → 3843, B=3791 → 4357
[TX098] Transfer $525: B=4357 → 3832, A=3843 → 4368
[TX099] Transfer $623: A=4368 → 3745, B=3832 → 4455
[TX100] Transfer $784: B=4455 → 3671, A=3745 → 4529
[TX101] Transfer $392: A=4529 → 4137, B=3671 → 4063
[TX102] Transfer $16: A=4137 → 4121, B=4063 → 4079
[TX103] Transfer $161: B=4079 → 3918, A=4121 → 4282
[TX104] Transfer $364: B=3918 → 3554, A=4282 → 4646
[TX105] Transfer $725: A=4646 → 3921, B=3554 → 4279
POSSIBLE BUG TYPES (choose exactly one):
- CALC_ERROR: Mathematical calculation is incorrect
- NEGATIVE_BAL: Account balance becomes negative
- LOST_UPDATE: Concurrent update causes lost transaction
- DUPLICATE_TXN: Same transaction processed multiple times
Identify the SINGLE bug if any exists.
Respond with ONLY a JSON object:
{"bug_type": "<type>", "bug_location": "<TX_ID>"
Your response:
|
DUPLICATE_TXN
|
TX047
|
Payment PAY1018 processed twice
|
DUPLICATE_TXN
| 105
|
{"bug_type": "DUPLICATE_TXN", "bug_location": "TX047", "explanation": "Payment PAY1018 processed twice"}
|
{"bug_type": "DUPLICATE_TXN", "n_ops": 105}
|
84
|
Analyze this banking transaction log for bugs.
Each operation shows the complete state change.
INITIAL STATE:
{
"account_A": 4000,
"account_B": 4200,
"total": 8200
}
RULES:
1. Total money must remain constant (conservation)
2. No account can go negative
3. All calculations must be mathematically correct
TRANSACTION LOG:
[TX001] Transfer $586: A=4000 → 3414, B=4200 → 4786
[TX002] Transfer $850: A=3414 → 2564, B=4786 → 5636
[TX003] Transfer $62: A=2564 → 2502, B=5636 → 5698
[TX004] Transfer $785: B=5698 → 4913, A=2502 → 3287
[TX005] Transfer $701: A=3287 → 2586, B=4913 → 5614
[TX006] Transfer $418: B=5614 → 5196, A=2586 → 3004
[TX007] Transfer $193: B=5196 → 5003, A=3004 → 3197
[TX008] Transfer $413: A=3197 → 2784, B=5003 → 5416
[TX009] Transfer $487: A=2784 → 2297, B=5416 → 5903
[TX010] Transfer $787: A=2297 → 1510, B=5903 → 6690
[TX011] Transfer $504: A=1510 → 1006, B=6690 → 7194
[TX012] Transfer $430: A=1006 → 576, B=7194 → 7624
[TX013] Transfer $793: B=7624 → 6831, A=576 → 1369
[TX014] Transfer $94: A=1369 → 1275, B=6831 → 6925
[TX015] Transfer $548: B=6925 → 6377, A=1275 → 1823
[TX016] Transfer $627: B=6377 → 5750, A=1823 → 2450
[TX017] Transfer $416: B=5750 → 5334, A=2450 → 2866
[TX018] Transfer $32: B=5334 → 5302, A=2866 → 2898
[TX019] Transfer $997: A=2898 → 1901, B=5302 → 6299
[TX020] Transfer $982: A=1901 → 919, B=6299 → 7281
[TX021] Transfer $705: B=7281 → 6576, A=919 → 1624
[TX022] Transfer $291: A=1624 → 1333, B=6576 → 6867
[TX023] Transfer $462: B=6867 → 6405, A=1333 → 1795
[TX024] Transfer $615: A=1795 → 1180, B=6405 → 7020
[TX025] Transfer $633: A=1180 → 547, B=7020 → 7653
[TX026] Transfer $196: B=7653 → 7457, A=547 → 743
[TX027] Transfer $266: A=743 → 477, B=7457 → 7723
[TX028] Transfer $120: A=477 → 357, B=7723 → 7843
[TX029] Transfer $833: B=7843 → 7010, A=357 → 1190
[TX030] Transfer $803: A=1190 → 387, B=7010 → 7813
[TX031] Transfer $277: A=387 → 110, B=7813 → 8090
[TX032] Transfer $9: A=110 → 101, B=8090 → 8099
[TX033] Balance check: A=101
[TX034] Transfer $681: B=8099 → 7418, A=101 → 782
[TX035] Transfer $353: A=782 → 429, B=7418 → 7771
[TX036] Transfer $196: A=429 → 233, B=7771 → 7967
[TX037] Transfer $924: B=7967 → 7043, A=233 → 1157
[TX038] Transfer $3: A=1157 → 1154, B=7043 → 7046
[TX039] Transfer $795: A=1154 → 359, B=7046 → 7841
[TX040] Transfer $245: A=359 → 114, B=7841 → 8086
[TX041] Payment PAY1025: Transfer $5: A=114 → 109, B=8086 → 8091
[TX042] Transfer $458: B=8091 → 7633, A=109 → 567
[TX043] Transfer $17: A=567 → 550, B=7633 → 7650
[TX044] Transfer $234: A=550 → 316, B=7650 → 7884
[TX045] Transfer $40: A=316 → 276, B=7884 → 7924
[TX046] Transfer $142: A=276 → 134, B=7924 → 8066
[TX047] Transfer $21: A=134 → 113, B=8066 → 8087
[TX048] Transfer $678: B=8087 → 7409, A=113 → 791
[TX049] Transfer $152: A=791 → 639, B=7409 → 7561
[TX050] Transfer $658: B=7561 → 6903, A=639 → 1297
[TX051] Transfer $92: B=6903 → 6811, A=1297 → 1389
[TX052] Transfer $554: A=1389 → 835, B=6811 → 7365
[TX053] Transfer $608: A=835 → 227, B=7365 → 7973
[TX054] Transfer $111: A=227 → 116, B=7973 → 8084
[TX055] Transfer $14: A=116 → 102, B=8084 → 8098
[TX056] Transfer $403: B=8098 → 7695, A=102 → 505
[TX057] Transfer $287: A=505 → 218, B=7695 → 7982
[TX058] Transfer $109: A=218 → 109, B=7982 → 8091
[TX059] Transfer $3: A=109 → 106, B=8091 → 8094
[TX060] Transfer $652: B=8094 → 7442, A=106 → 758
[TX061] Transfer $201: A=758 → 557, B=7442 → 7643
[TX062] Payment PAY1025: Transfer $5: A=557 → 552, B=7643 → 7648
[TX063] Transfer $277: B=7648 → 7371, A=552 → 829
[TX064] Transfer $611: A=829 → 218, B=7371 → 7982
[TX065] Transfer $659: B=7982 → 7323, A=218 → 877
[TX066] Transfer $536: B=7323 → 6787, A=877 → 1413
[TX067] Transfer $85: B=6787 → 6702, A=1413 → 1498
[TX068] Transfer $755: A=1498 → 743, B=6702 → 7457
[TX069] Transfer $307: B=7457 → 7150, A=743 → 1050
[TX070] Transfer $222: A=1050 → 828, B=7150 → 7372
[TX071] Transfer $601: B=7372 → 6771, A=828 → 1429
[TX072] Transfer $981: A=1429 → 448, B=6771 → 7752
[TX073] Transfer $188: A=448 → 260, B=7752 → 7940
[TX074] Transfer $48: A=260 → 212, B=7940 → 7988
[TX075] Transfer $416: B=7988 → 7572, A=212 → 628
[TX076] Transfer $387: A=628 → 241, B=7572 → 7959
[TX077] Transfer $137: B=7959 → 7822, A=241 → 378
[TX078] Transfer $386: B=7822 → 7436, A=378 → 764
[TX079] Transfer $866: B=7436 → 6570, A=764 → 1630
[TX080] Transfer $362: B=6570 → 6208, A=1630 → 1992
[TX081] Transfer $717: B=6208 → 5491, A=1992 → 2709
[TX082] Transfer $515: B=5491 → 4976, A=2709 → 3224
[TX083] Transfer $810: A=3224 → 2414, B=4976 → 5786
[TX084] Transfer $697: B=5786 → 5089, A=2414 → 3111
[TX085] Transfer $896: A=3111 → 2215, B=5089 → 5985
[TX086] Transfer $862: B=5985 → 5123, A=2215 → 3077
[TX087] Transfer $362: A=3077 → 2715, B=5123 → 5485
[TX088] Transfer $256: B=5485 → 5229, A=2715 → 2971
[TX089] Transfer $963: B=5229 → 4266, A=2971 → 3934
[TX090] Transfer $157: B=4266 → 4109, A=3934 → 4091
[TX091] Transfer $238: A=4091 → 3853, B=4109 → 4347
POSSIBLE BUG TYPES (choose exactly one):
- CALC_ERROR: Mathematical calculation is incorrect
- NEGATIVE_BAL: Account balance becomes negative
- LOST_UPDATE: Concurrent update causes lost transaction
- DUPLICATE_TXN: Same transaction processed multiple times
Identify the SINGLE bug if any exists.
Respond with ONLY a JSON object:
{"bug_type": "<type>", "bug_location": "<TX_ID>"
Your response:
|
DUPLICATE_TXN
|
TX062
|
Payment PAY1025 processed twice
|
DUPLICATE_TXN
| 91
|
{"bug_type": "DUPLICATE_TXN", "bug_location": "TX062", "explanation": "Payment PAY1025 processed twice"}
|
{"bug_type": "DUPLICATE_TXN", "n_ops": 91}
|
77
|
Analyze this banking transaction log for bugs.
Each operation shows the complete state change.
INITIAL STATE:
{
"account_A": 4000,
"account_B": 4200,
"total": 8200
}
RULES:
1. Total money must remain constant (conservation)
2. No account can go negative
3. All calculations must be mathematically correct
TRANSACTION LOG:
[TX001] Transfer $463: B=4200 → 3737, A=4000 → 4463
[TX002] Transfer $668: A=4463 → 3795, B=3737 → 4405
[TX003] Transfer $842: B=4405 → 3563, A=3795 → 4637
[TX004] Transfer $600: B=3563 → 2963, A=4637 → 5237
[TX005] Transfer $367: B=2963 → 2596, A=5237 → 5604
[TX006] Transfer $105: B=2596 → 2491, A=5604 → 5709
[TX007] Transfer $254: B=2491 → 2237, A=5709 → 5963
[TX008] Transfer $677: B=2237 → 1560, A=5963 → 6640
[TX009] Transfer $484: A=6640 → 6156, B=1560 → 2044
[TX010] Transfer $469: B=2044 → 1575, A=6156 → 6625
[TX011] Transfer $559: A=6625 → 6066, B=1575 → 2134
[TX012] Transfer $421: B=2134 → 1713, A=6066 → 6487
[TX013] Transfer $938: A=6487 → 5549, B=1713 → 2651
[TX014] Transfer $183: A=5549 → 5366, B=2651 → 2834
[TX015] Transfer $828: A=5366 → 4538, B=2834 → 3662
[TX016] Transfer $72: B=3662 → 3590, A=4538 → 4610
[TX017] Transfer $37: B=3590 → 3553, A=4610 → 4647
[TX018] Transfer $983: A=4647 → 3664, B=3553 → 4536
[TX019] Transfer $344: B=4536 → 4192, A=3664 → 4008
[TX020] Transfer $850: B=4192 → 3342, A=4008 → 4858
[TX021] Transfer $1000: B=3342 → 2342, A=4858 → 5858
[TX022] Transfer $40: B=2342 → 2302, A=5858 → 5898
[TX023] Transfer $140: A=5898 → 5758, B=2302 → 2442
[TX024] Transfer $10: B=2442 → 2432, A=5758 → 5768
[TX025] Transfer $500: B=2432 → 1932, A=5768 → 6268
[TX026] Transfer $434: B=1932 → 1498, A=6268 → 6702
[TX027] Transfer $271: A=6702 → 6431, B=1498 → 1769
[TX028] Payment PAY1022: Transfer $466: B=1769 → 1303, A=6431 → 6897
[TX029] Transfer $608: A=6897 → 6289, B=1303 → 1911
[TX030] Transfer $950: B=1911 → 961, A=6289 → 7239
[TX031] Transfer $590: A=7239 → 6649, B=961 → 1551
[TX032] Transfer $509: A=6649 → 6140, B=1551 → 2060
[TX033] Transfer $713: B=2060 → 1347, A=6140 → 6853
[TX034] Payment PAY1022: Transfer $466: B=1347 → 881, A=6853 → 7319
[TX035] Transfer $179: A=7319 → 7140, B=881 → 1060
[TX036] Transfer $785: B=1060 → 275, A=7140 → 7925
[TX037] Transfer $91: B=275 → 184, A=7925 → 8016
[TX038] Transfer $853: A=8016 → 7163, B=184 → 1037
[TX039] Transfer $141: B=1037 → 896, A=7163 → 7304
[TX040] Transfer $466: B=896 → 430, A=7304 → 7770
[TX041] Transfer $12: B=430 → 418, A=7770 → 7782
[TX042] Transfer $56: B=418 → 362, A=7782 → 7838
[TX043] Transfer $19: B=362 → 343, A=7838 → 7857
[TX044] Transfer $971: A=7857 → 6886, B=343 → 1314
[TX045] Transfer $521: A=6886 → 6365, B=1314 → 1835
[TX046] Transfer $563: B=1835 → 1272, A=6365 → 6928
[TX047] Transfer $669: B=1272 → 603, A=6928 → 7597
[TX048] Transfer $376: B=603 → 227, A=7597 → 7973
[TX049] Transfer $416: A=7973 → 7557, B=227 → 643
[TX050] Transfer $462: B=643 → 181, A=7557 → 8019
[TX051] Transfer $98: A=8019 → 7921, B=181 → 279
[TX052] Transfer $621: A=7921 → 7300, B=279 → 900
[TX053] Transfer $966: A=7300 → 6334, B=900 → 1866
[TX054] Transfer $526: B=1866 → 1340, A=6334 → 6860
[TX055] Transfer $192: B=1340 → 1148, A=6860 → 7052
[TX056] Transfer $138: A=7052 → 6914, B=1148 → 1286
[TX057] Transfer $808: B=1286 → 478, A=6914 → 7722
[TX058] Transfer $948: A=7722 → 6774, B=478 → 1426
[TX059] Transfer $672: B=1426 → 754, A=6774 → 7446
[TX060] Transfer $917: A=7446 → 6529, B=754 → 1671
[TX061] Transfer $743: A=6529 → 5786, B=1671 → 2414
[TX062] Transfer $474: B=2414 → 1940, A=5786 → 6260
[TX063] Transfer $276: A=6260 → 5984, B=1940 → 2216
[TX064] Transfer $22: B=2216 → 2194, A=5984 → 6006
[TX065] Transfer $708: A=6006 → 5298, B=2194 → 2902
[TX066] Transfer $580: B=2902 → 2322, A=5298 → 5878
[TX067] Transfer $279: A=5878 → 5599, B=2322 → 2601
[TX068] Transfer $862: B=2601 → 1739, A=5599 → 6461
[TX069] Transfer $638: A=6461 → 5823, B=1739 → 2377
[TX070] Transfer $103: B=2377 → 2274, A=5823 → 5926
[TX071] Transfer $770: A=5926 → 5156, B=2274 → 3044
[TX072] Transfer $30: B=3044 → 3014, A=5156 → 5186
[TX073] Transfer $764: B=3014 → 2250, A=5186 → 5950
[TX074] Transfer $888: B=2250 → 1362, A=5950 → 6838
[TX075] Transfer $189: B=1362 → 1173, A=6838 → 7027
[TX076] Transfer $82: A=7027 → 6945, B=1173 → 1255
[TX077] Transfer $814: B=1255 → 441, A=6945 → 7759
[TX078] Transfer $298: A=7759 → 7461, B=441 → 739
[TX079] Transfer $854: A=7461 → 6607, B=739 → 1593
[TX080] Transfer $431: A=6607 → 6176, B=1593 → 2024
[TX081] Transfer $548: A=6176 → 5628, B=2024 → 2572
[TX082] Transfer $199: A=5628 → 5429, B=2572 → 2771
[TX083] Transfer $540: B=2771 → 2231, A=5429 → 5969
[TX084] Transfer $706: B=2231 → 1525, A=5969 → 6675
[TX085] Transfer $53: B=1525 → 1472, A=6675 → 6728
POSSIBLE BUG TYPES (choose exactly one):
- CALC_ERROR: Mathematical calculation is incorrect
- NEGATIVE_BAL: Account balance becomes negative
- LOST_UPDATE: Concurrent update causes lost transaction
- DUPLICATE_TXN: Same transaction processed multiple times
Identify the SINGLE bug if any exists.
Respond with ONLY a JSON object:
{"bug_type": "<type>", "bug_location": "<TX_ID>"
Your response:
|
DUPLICATE_TXN
|
TX034
|
Payment PAY1022 processed twice
|
DUPLICATE_TXN
| 85
|
{"bug_type": "DUPLICATE_TXN", "bug_location": "TX034", "explanation": "Payment PAY1022 processed twice"}
|
{"bug_type": "DUPLICATE_TXN", "n_ops": 85}
|
64
|
Analyze this banking transaction log for bugs.
Each operation shows the complete state change.
INITIAL STATE:
{
"account_A": 4000,
"account_B": 4200,
"total": 8200
}
RULES:
1. Total money must remain constant (conservation)
2. No account can go negative
3. All calculations must be mathematically correct
TRANSACTION LOG:
[TX001] Transfer $390: B=4200 → 3810, A=4000 → 4390
[TX002] Transfer $335: A=4390 → 4055, B=3810 → 4145
[TX003] Transfer $525: A=4055 → 3530, B=4145 → 4670
[TX004] Transfer $923: B=4670 → 3747, A=3530 → 4453
[TX005] Transfer $403: A=4453 → 4050, B=3747 → 4150
[TX006] Transfer $737: A=4050 → 3313, B=4150 → 4887
[TX007] Transfer $662: B=4887 → 4225, A=3313 → 3975
[TX008] Transfer $66: B=4225 → 4159, A=3975 → 4041
[TX009] Transfer $205: B=4159 → 3954, A=4041 → 4246
[TX010] Transfer $950: B=3954 → 3004, A=4246 → 5196
[TX011] Transfer $335: A=5196 → 4861, B=3004 → 3339
[TX012] Transfer $160: A=4861 → 4701, B=3339 → 3499
[TX013] Transfer $904: A=4701 → 3797, B=3499 → 4403
[TX014] Transfer $752: A=3797 → 3045, B=4403 → 5155
[TX015] Transfer $675: B=5155 → 4480, A=3045 → 3720
[TX016] Transfer $243: A=3720 → 3477, B=4480 → 4723
[TX017] Transfer $920: A=3477 → 2557, B=4723 → 5643
[TX018] Transfer $670: A=2557 → 1887, B=5643 → 6313
[TX019] Transfer $810: B=6313 → 5503, A=1887 → 2697
[TX020] Transfer $571: A=2697 → 2126, B=5503 → 6074
[TX021] Transfer $429: B=6074 → 5645, A=2126 → 2555
[TX022] Transfer $744: A=2555 → 1811, B=5645 → 6389
[TX023] Transfer $226: B=6389 → 6163, A=1811 → 2037
[TX024] Transfer $298: A=2037 → 1739, B=6163 → 6461
[TX025] Transfer $586: A=1739 → 1153, B=6461 → 7047
[TX026] Transfer $888: B=7047 → 6159, A=1153 → 2041
[TX027] Transfer $627: B=6159 → 5532, A=2041 → 2668
[TX028] Transfer $916: A=2668 → 1752, B=5532 → 6448
[TX029] Transfer $4: B=6448 → 6444, A=1752 → 1756
[TX030] Transfer $452: A=1756 → 1304, B=6444 → 6896
[TX031] Transfer $58: A=1304 → 1246, B=6896 → 6954
[TX032] Transfer $684: B=6954 → 6270, A=1246 → 1930
[TX033] Transfer $738: B=6270 → 5532, A=1930 → 2668
[TX034] Transfer $504: A=2668 → 2164, B=5532 → 6036
[TX035] Transfer $595: B=6036 → 5441, A=2164 → 2759
[TX036] Payment PAY1014: Transfer $154: A=2759 → 2605, B=5441 → 5595
[TX037] Transfer $139: A=2605 → 2466, B=5595 → 5734
[TX038] Transfer $748: B=5734 → 4986, A=2466 → 3214
[TX039] Transfer $179: A=3214 → 3035, B=4986 → 5165
[TX040] Transfer $273: A=3035 → 2762, B=5165 → 5438
[TX041] Transfer $533: B=5438 → 4905, A=2762 → 3295
[TX042] Transfer $702: B=4905 → 4203, A=3295 → 3997
[TX043] Transfer $685: A=3997 → 3312, B=4203 → 4888
[TX044] Transfer $244: B=4888 → 4644, A=3312 → 3556
[TX045] Transfer $819: B=4644 → 3825, A=3556 → 4375
[TX046] Transfer $19: A=4375 → 4356, B=3825 → 3844
[TX047] Transfer $243: B=3844 → 3601, A=4356 → 4599
[TX048] Transfer $836: B=3601 → 2765, A=4599 → 5435
[TX049] Transfer $473: B=2765 → 2292, A=5435 → 5908
[TX050] Transfer $857: A=5908 → 5051, B=2292 → 3149
[TX051] Transfer $894: A=5051 → 4157, B=3149 → 4043
[TX052] Transfer $799: A=4157 → 3358, B=4043 → 4842
[TX053] Transfer $799: A=3358 → 2559, B=4842 → 5641
[TX054] Transfer $96: B=5641 → 5545, A=2559 → 2655
[TX055] Transfer $491: B=5545 → 5054, A=2655 → 3146
[TX056] Transfer $60: B=5054 → 4994, A=3146 → 3206
[TX057] Transfer $592: A=3206 → 2614, B=4994 → 5586
[TX058] Transfer $86: B=5586 → 5500, A=2614 → 2700
[TX059] Transfer $97: A=2700 → 2603, B=5500 → 5597
[TX060] Transfer $409: A=2603 → 2194, B=5597 → 6006
[TX061] Transfer $751: A=2194 → 1443, B=6006 → 6757
[TX062] Transfer $214: A=1443 → 1229, B=6757 → 6971
[TX063] Transfer $889: A=1229 → 340, B=6971 → 7860
[TX064] Transfer $479: B=7860 → 7381, A=340 → 819
[TX065] Transfer $119: A=819 → 700, B=7381 → 7500
[TX066] Transfer $117: A=700 → 583, B=7500 → 7617
[TX067] Transfer $109: B=7617 → 7508, A=583 → 692
[TX068] Transfer $44: A=692 → 648, B=7508 → 7552
[TX069] Transfer $459: A=648 → 189, B=7552 → 8011
[TX070] Transfer $86: A=189 → 103, B=8011 → 8097
[TX071] Payment PAY1014: Transfer $154: A=103 → -51, B=8097 → 8251
[TX072] Transfer $204: B=8251 → 8047, A=-51 → 153
[TX073] Transfer $20: A=153 → 133, B=8047 → 8067
[TX074] Transfer $26: A=133 → 107, B=8067 → 8093
[TX075] Transfer $551: B=8093 → 7542, A=107 → 658
[TX076] Transfer $468: A=658 → 190, B=7542 → 8010
[TX077] Transfer $155: B=8010 → 7855, A=190 → 345
[TX078] Transfer $104: B=7855 → 7751, A=345 → 449
[TX079] Transfer $13: A=449 → 436, B=7751 → 7764
[TX080] Transfer $946: B=7764 → 6818, A=436 → 1382
[TX081] Transfer $592: B=6818 → 6226, A=1382 → 1974
[TX082] Transfer $155: B=6226 → 6071, A=1974 → 2129
[TX083] Transfer $133: B=6071 → 5938, A=2129 → 2262
[TX084] Transfer $719: A=2262 → 1543, B=5938 → 6657
[TX085] Transfer $740: B=6657 → 5917, A=1543 → 2283
[TX086] Transfer $831: B=5917 → 5086, A=2283 → 3114
[TX087] Transfer $734: A=3114 → 2380, B=5086 → 5820
[TX088] Transfer $799: B=5820 → 5021, A=2380 → 3179
[TX089] Transfer $796: B=5021 → 4225, A=3179 → 3975
[TX090] Transfer $994: A=3975 → 2981, B=4225 → 5219
[TX091] Transfer $147: B=5219 → 5072, A=2981 → 3128
[TX092] Transfer $436: B=5072 → 4636, A=3128 → 3564
[TX093] Transfer $554: B=4636 → 4082, A=3564 → 4118
[TX094] Transfer $316: B=4082 → 3766, A=4118 → 4434
[TX095] Transfer $868: A=4434 → 3566, B=3766 → 4634
[TX096] Transfer $966: A=3566 → 2600, B=4634 → 5600
[TX097] Transfer $28: A=2600 → 2572, B=5600 → 5628
[TX098] Transfer $954: A=2572 → 1618, B=5628 → 6582
[TX099] Transfer $128: A=1618 → 1490, B=6582 → 6710
[TX100] Transfer $492: B=6710 → 6218, A=1490 → 1982
[TX101] Transfer $286: A=1982 → 1696, B=6218 → 6504
[TX102] Transfer $615: A=1696 → 1081, B=6504 → 7119
[TX103] Transfer $738: A=1081 → 343, B=7119 → 7857
[TX104] Transfer $111: A=343 → 232, B=7857 → 7968
[TX105] Transfer $60: A=232 → 172, B=7968 → 8028
[TX106] Transfer $38: A=172 → 134, B=8028 → 8066
[TX107] Transfer $22: A=134 → 112, B=8066 → 8088
POSSIBLE BUG TYPES (choose exactly one):
- CALC_ERROR: Mathematical calculation is incorrect
- NEGATIVE_BAL: Account balance becomes negative
- LOST_UPDATE: Concurrent update causes lost transaction
- DUPLICATE_TXN: Same transaction processed multiple times
Identify the SINGLE bug if any exists.
Respond with ONLY a JSON object:
{"bug_type": "<type>", "bug_location": "<TX_ID>"
Your response:
|
DUPLICATE_TXN
|
TX071
|
Payment PAY1014 processed twice
|
DUPLICATE_TXN
| 107
|
{"bug_type": "DUPLICATE_TXN", "bug_location": "TX071", "explanation": "Payment PAY1014 processed twice"}
|
{"bug_type": "DUPLICATE_TXN", "n_ops": 107}
|
29
|
Analyze this banking transaction log for bugs.
Each operation shows the complete state change.
INITIAL STATE:
{
"account_A": 4000,
"account_B": 4200,
"total": 8200
}
RULES:
1. Total money must remain constant (conservation)
2. No account can go negative
3. All calculations must be mathematically correct
TRANSACTION LOG:
[TX001] Transfer $143: B=4200 → 4057, A=4000 → 4143
[TX002] Transfer $942: B=4057 → 3115, A=4143 → 5085
[TX003] Transfer $976: B=3115 → 2139, A=5085 → 6061
[TX004] Transfer $455: B=2139 → 1684, A=6061 → 6516
[TX005] Transfer $736: A=6516 → 5780, B=1684 → 2420
[TX006] Transfer $348: A=5780 → 5432, B=2420 → 2768
[TX007] Transfer $792: B=2768 → 1976, A=5432 → 6224
[TX008] Transfer $64: A=6224 → 6160, B=1976 → 2040
[TX009] Transfer $678: B=2040 → 1362, A=6160 → 6838
[TX010] Transfer $648: A=6838 → 6190, B=1362 → 2010
[TX011] Transfer $413: B=2010 → 1597, A=6190 → 6603
[TX012] Transfer $933: B=1597 → 664, A=6603 → 7536
[TX013] Transfer $288: B=664 → 376, A=7536 → 7824
[TX014] Transfer $458: A=7824 → 7366, B=376 → 834
[TX015] Transfer $716: A=7366 → 6650, B=834 → 1550
[TX016] Transfer $796: B=1550 → 754, A=6650 → 7446
[TX017] Transfer $88: A=7446 → 7358, B=754 → 842
[TX018] Transfer $401: A=7358 → 6957, B=842 → 1243
[TX019] Transfer $220: A=6957 → 6737, B=1243 → 1463
[TX020] Thread T1: READ A=6737
[TX021] Thread T2: READ A=6737
[TX022] Thread T1: COMMIT A=6737 → 6557
[TX023] Thread T2: COMMIT A=6737 → 6546
[TX024] Transfer $777: B=1463 → 686, A=6546 → 7323
[TX025] Transfer $30: A=7323 → 7293, B=686 → 716
[TX026] Transfer $313: B=716 → 403, A=7293 → 7606
[TX027] Transfer $32: B=403 → 371, A=7606 → 7638
[TX028] Transfer $261: B=371 → 110, A=7638 → 7899
[TX029] Transfer $2: B=110 → 108, A=7899 → 7901
[TX030] Transfer $307: A=7901 → 7594, B=108 → 415
[TX031] Transfer $349: A=7594 → 7245, B=415 → 764
[TX032] Transfer $360: A=7245 → 6885, B=764 → 1124
[TX033] Transfer $684: B=1124 → 440, A=6885 → 7569
[TX034] Transfer $534: A=7569 → 7035, B=440 → 974
[TX035] Transfer $337: A=7035 → 6698, B=974 → 1311
[TX036] Transfer $467: A=6698 → 6231, B=1311 → 1778
[TX037] Transfer $730: A=6231 → 5501, B=1778 → 2508
[TX038] Transfer $85: B=2508 → 2423, A=5501 → 5586
[TX039] Transfer $437: A=5586 → 5149, B=2423 → 2860
[TX040] Transfer $221: A=5149 → 4928, B=2860 → 3081
[TX041] Transfer $380: B=3081 → 2701, A=4928 → 5308
[TX042] Transfer $894: B=2701 → 1807, A=5308 → 6202
[TX043] Transfer $653: B=1807 → 1154, A=6202 → 6855
[TX044] Transfer $707: B=1154 → 447, A=6855 → 7562
[TX045] Transfer $85: B=447 → 362, A=7562 → 7647
[TX046] Transfer $498: A=7647 → 7149, B=362 → 860
[TX047] Transfer $723: B=860 → 137, A=7149 → 7872
[TX048] Transfer $468: A=7872 → 7404, B=137 → 605
[TX049] Transfer $384: B=605 → 221, A=7404 → 7788
[TX050] Transfer $945: A=7788 → 6843, B=221 → 1166
[TX051] Transfer $114: A=6843 → 6729, B=1166 → 1280
[TX052] Transfer $587: A=6729 → 6142, B=1280 → 1867
[TX053] Transfer $537: B=1867 → 1330, A=6142 → 6679
[TX054] Transfer $382: A=6679 → 6297, B=1330 → 1712
[TX055] Transfer $312: B=1712 → 1400, A=6297 → 6609
[TX056] Transfer $30: B=1400 → 1370, A=6609 → 6639
[TX057] Transfer $804: A=6639 → 5835, B=1370 → 2174
[TX058] Transfer $961: B=2174 → 1213, A=5835 → 6796
[TX059] Transfer $222: B=1213 → 991, A=6796 → 7018
[TX060] Transfer $4: A=7018 → 7014, B=991 → 995
[TX061] Transfer $71: A=7014 → 6943, B=995 → 1066
[TX062] Transfer $494: A=6943 → 6449, B=1066 → 1560
[TX063] Transfer $923: B=1560 → 637, A=6449 → 7372
[TX064] Transfer $488: B=637 → 149, A=7372 → 7860
[TX065] Transfer $518: A=7860 → 7342, B=149 → 667
[TX066] Transfer $461: B=667 → 206, A=7342 → 7803
[TX067] Transfer $93: A=7803 → 7710, B=206 → 299
[TX068] Transfer $61: B=299 → 238, A=7710 → 7771
[TX069] Transfer $13: B=238 → 225, A=7771 → 7784
[TX070] Transfer $84: B=225 → 141, A=7784 → 7868
[TX071] Transfer $726: A=7868 → 7142, B=141 → 867
[TX072] Transfer $576: A=7142 → 6566, B=867 → 1443
[TX073] Transfer $199: A=6566 → 6367, B=1443 → 1642
[TX074] Transfer $770: A=6367 → 5597, B=1642 → 2412
[TX075] Transfer $125: B=2412 → 2287, A=5597 → 5722
[TX076] Transfer $283: A=5722 → 5439, B=2287 → 2570
[TX077] Transfer $851: A=5439 → 4588, B=2570 → 3421
[TX078] Transfer $828: B=3421 → 2593, A=4588 → 5416
[TX079] Transfer $605: B=2593 → 1988, A=5416 → 6021
[TX080] Transfer $884: A=6021 → 5137, B=1988 → 2872
[TX081] Transfer $449: A=5137 → 4688, B=2872 → 3321
[TX082] Transfer $26: A=4688 → 4662, B=3321 → 3347
[TX083] Transfer $265: B=3347 → 3082, A=4662 → 4927
[TX084] Transfer $103: A=4927 → 4824, B=3082 → 3185
[TX085] Transfer $149: A=4824 → 4675, B=3185 → 3334
[TX086] Transfer $788: A=4675 → 3887, B=3334 → 4122
[TX087] Transfer $316: A=3887 → 3571, B=4122 → 4438
[TX088] Transfer $62: B=4438 → 4376, A=3571 → 3633
[TX089] Transfer $29: B=4376 → 4347, A=3633 → 3662
[TX090] Transfer $401: A=3662 → 3261, B=4347 → 4748
[TX091] Transfer $147: A=3261 → 3114, B=4748 → 4895
[TX092] Transfer $266: B=4895 → 4629, A=3114 → 3380
[TX093] Transfer $55: B=4629 → 4574, A=3380 → 3435
POSSIBLE BUG TYPES (choose exactly one):
- CALC_ERROR: Mathematical calculation is incorrect
- NEGATIVE_BAL: Account balance becomes negative
- LOST_UPDATE: Concurrent update causes lost transaction
- DUPLICATE_TXN: Same transaction processed multiple times
Identify the SINGLE bug if any exists.
Respond with ONLY a JSON object:
{"bug_type": "<type>", "bug_location": "<TX_ID>"
Your response:
|
LOST_UPDATE
|
TX023
|
Thread T2 overwrites T1's change
|
LOST_UPDATE
| 93
|
{"bug_type": "LOST_UPDATE", "bug_location": "TX023", "explanation": "Thread T2 overwrites T1's change"}
|
{"bug_type": "LOST_UPDATE", "n_ops": 93}
|
27
|
Analyze this banking transaction log for bugs.
Each operation shows the complete state change.
INITIAL STATE:
{
"account_A": 4000,
"account_B": 4200,
"total": 8200
}
RULES:
1. Total money must remain constant (conservation)
2. No account can go negative
3. All calculations must be mathematically correct
TRANSACTION LOG:
[TX001] Transfer $947: A=4000 → 3053, B=4200 → 5147
[TX002] Transfer $999: A=3053 → 2054, B=5147 → 6146
[TX003] Transfer $270: B=6146 → 5876, A=2054 → 2324
[TX004] Transfer $412: A=2324 → 1912, B=5876 → 6288
[TX005] Transfer $154: B=6288 → 6134, A=1912 → 2066
[TX006] Transfer $176: A=2066 → 1890, B=6134 → 6310
[TX007] Transfer $737: A=1890 → 1153, B=6310 → 7047
[TX008] Transfer $849: B=7047 → 6198, A=1153 → 2002
[TX009] Transfer $231: B=6198 → 5967, A=2002 → 2233
[TX010] Transfer $970: A=2233 → 1263, B=5967 → 6937
[TX011] Transfer $766: B=6937 → 6171, A=1263 → 2029
[TX012] Transfer $135: B=6171 → 6036, A=2029 → 2164
[TX013] Transfer $616: B=6036 → 5420, A=2164 → 2780
[TX014] Transfer $746: A=2780 → 2034, B=5420 → 6166
[TX015] Transfer $186: A=2034 → 1848, B=6166 → 6352
[TX016] Transfer $31: B=6352 → 6321, A=1848 → 1879
[TX017] Transfer $243: B=6321 → 6078, A=1879 → 2122
[TX018] Transfer $380: B=6078 → 5698, A=2122 → 2502
[TX019] Transfer $12: B=5698 → 5686, A=2502 → 2514
[TX020] Transfer $894: B=5686 → 4792, A=2514 → 3408
[TX021] Transfer $705: B=4792 → 4087, A=3408 → 4113
[TX022] Transfer $727: A=4113 → 3386, B=4087 → 4814
[TX023] Transfer $76: B=4814 → 4738, A=3386 → 3462
[TX024] Transfer $55: A=3462 → 3407, B=4738 → 4793
[TX025] Transfer $484: B=4793 → 4309, A=3407 → 3891
[TX026] Transfer $7: B=4309 → 4302, A=3891 → 3898
[TX027] Transfer $311: B=4302 → 3991, A=3898 → 4209
[TX028] Transfer $137: B=3991 → 3854, A=4209 → 4346
[TX029] Transfer $268: A=4346 → 4078, B=3854 → 4122
[TX030] Transfer $954: A=4078 → 3124, B=4122 → 5076
[TX031] Transfer $137: B=5076 → 4939, A=3124 → 3261
[TX032] Transfer $729: A=3261 → 2532, B=4939 → 5668
[TX033] Transfer $268: B=5668 → 5400, A=2532 → 2800
[TX034] Transfer $47: A=2800 → 2753, B=5400 → 5447
[TX035] Transfer $894: A=2753 → 1859, B=5447 → 6341
[TX036] Transfer $950: B=6341 → 5391, A=1859 → 2809
[TX037] Payment PAY1007: Transfer $926: B=5391 → 4465, A=2809 → 3735
[TX038] Transfer $531: B=4465 → 3934, A=3735 → 4266
[TX039] Transfer $916: B=3934 → 3018, A=4266 → 5182
[TX040] Transfer $756: A=5182 → 4426, B=3018 → 3774
[TX041] Transfer $571: B=3774 → 3203, A=4426 → 4997
[TX042] Transfer $195: B=3203 → 3008, A=4997 → 5192
[TX043] Transfer $237: A=5192 → 4955, B=3008 → 3245
[TX044] Transfer $483: A=4955 → 4472, B=3245 → 3728
[TX045] Transfer $724: B=3728 → 3004, A=4472 → 5196
[TX046] Transfer $120: B=3004 → 2884, A=5196 → 5316
[TX047] Transfer $454: B=2884 → 2430, A=5316 → 5770
[TX048] Transfer $470: B=2430 → 1960, A=5770 → 6240
[TX049] Transfer $868: B=1960 → 1092, A=6240 → 7108
[TX050] Transfer $359: A=7108 → 6749, B=1092 → 1451
[TX051] Transfer $891: A=6749 → 5858, B=1451 → 2342
[TX052] Payment PAY1007: Transfer $926: B=2342 → 1416, A=5858 → 6784
[TX053] Transfer $856: B=1416 → 560, A=6784 → 7640
[TX054] Transfer $578: A=7640 → 7062, B=560 → 1138
[TX055] Transfer $540: A=7062 → 6522, B=1138 → 1678
[TX056] Transfer $944: A=6522 → 5578, B=1678 → 2622
[TX057] Transfer $788: A=5578 → 4790, B=2622 → 3410
[TX058] Transfer $910: B=3410 → 2500, A=4790 → 5700
[TX059] Transfer $293: B=2500 → 2207, A=5700 → 5993
[TX060] Transfer $384: A=5993 → 5609, B=2207 → 2591
[TX061] Transfer $159: A=5609 → 5450, B=2591 → 2750
[TX062] Transfer $473: A=5450 → 4977, B=2750 → 3223
[TX063] Transfer $645: B=3223 → 2578, A=4977 → 5622
[TX064] Transfer $339: B=2578 → 2239, A=5622 → 5961
[TX065] Transfer $334: A=5961 → 5627, B=2239 → 2573
[TX066] Transfer $885: A=5627 → 4742, B=2573 → 3458
[TX067] Transfer $332: A=4742 → 4410, B=3458 → 3790
[TX068] Transfer $562: A=4410 → 3848, B=3790 → 4352
[TX069] Transfer $410: B=4352 → 3942, A=3848 → 4258
[TX070] Transfer $247: B=3942 → 3695, A=4258 → 4505
[TX071] Transfer $23: B=3695 → 3672, A=4505 → 4528
[TX072] Transfer $399: A=4528 → 4129, B=3672 → 4071
[TX073] Transfer $664: B=4071 → 3407, A=4129 → 4793
[TX074] Transfer $307: A=4793 → 4486, B=3407 → 3714
[TX075] Transfer $755: B=3714 → 2959, A=4486 → 5241
[TX076] Transfer $369: B=2959 → 2590, A=5241 → 5610
POSSIBLE BUG TYPES (choose exactly one):
- CALC_ERROR: Mathematical calculation is incorrect
- NEGATIVE_BAL: Account balance becomes negative
- LOST_UPDATE: Concurrent update causes lost transaction
- DUPLICATE_TXN: Same transaction processed multiple times
Identify the SINGLE bug if any exists.
Respond with ONLY a JSON object:
{"bug_type": "<type>", "bug_location": "<TX_ID>"
Your response:
|
DUPLICATE_TXN
|
TX052
|
Payment PAY1007 processed twice
|
DUPLICATE_TXN
| 76
|
{"bug_type": "DUPLICATE_TXN", "bug_location": "TX052", "explanation": "Payment PAY1007 processed twice"}
|
{"bug_type": "DUPLICATE_TXN", "n_ops": 76}
|
88
|
Analyze this banking transaction log for bugs.
Each operation shows the complete state change.
INITIAL STATE:
{
"account_A": 4000,
"account_B": 4200,
"total": 8200
}
RULES:
1. Total money must remain constant (conservation)
2. No account can go negative
3. All calculations must be mathematically correct
TRANSACTION LOG:
[TX001] Transfer $889: B=4200 → 3311, A=4000 → 4889
[TX002] Transfer $148: B=3311 → 3163, A=4889 → 5037
[TX003] Transfer $305: B=3163 → 2858, A=5037 → 5342
[TX004] Transfer $136: A=5342 → 5206, B=2858 → 2994
[TX005] Transfer $916: A=5206 → 4290, B=2994 → 3910
[TX006] Transfer $135: B=3910 → 3775, A=4290 → 4425
[TX007] Transfer $737: A=4425 → 3688, B=3775 → 4512
[TX008] Transfer $339: A=3688 → 3349, B=4512 → 4851
[TX009] Transfer $235: B=4851 → 4616, A=3349 → 3584
[TX010] Transfer $6: B=4616 → 4610, A=3584 → 3590
[TX011] Transfer $703: A=3590 → 2887, B=4610 → 5313
[TX012] Transfer $761: B=5313 → 4552, A=2887 → 3648
[TX013] Transfer $933: A=3648 → 2715, B=4552 → 5485
[TX014] Transfer $963: A=2715 → 1752, B=5485 → 6448
[TX015] Transfer $178: B=6448 → 6270, A=1752 → 1930
[TX016] Transfer $409: A=1930 → 1521, B=6270 → 6679
[TX017] Transfer $67: B=6679 → 6612, A=1521 → 1588
[TX018] Transfer $211: A=1588 → 1377, B=6612 → 6823
[TX019] Transfer $61: B=6823 → 6762, A=1377 → 1438
[TX020] Transfer $71: B=6762 → 6691, A=1438 → 1509
[TX021] Transfer $395: B=6691 → 6296, A=1509 → 1904
[TX022] Transfer $716: A=1904 → 1188, B=6296 → 7012
[TX023] Transfer $412: B=7012 → 6600, A=1188 → 1600
[TX024] Transfer $767: B=6600 → 5833, A=1600 → 2367
[TX025] Transfer $27: B=5833 → 5806, A=2367 → 2394
[TX026] Transfer $705: B=5806 → 5101, A=2394 → 3099
[TX027] Transfer $582: B=5101 → 4519, A=3099 → 3681
[TX028] Transfer $906: B=4519 → 3613, A=3681 → 4587
[TX029] Transfer $878: A=4587 → 3709, B=3613 → 4491
[TX030] Transfer $208: B=4491 → 4283, A=3709 → 3917
[TX031] Transfer $53: B=4283 → 4230, A=3917 → 3970
[TX032] Transfer $429: A=3970 → 3541, B=4230 → 4659
[TX033] Transfer $412: A=3541 → 3129, B=4659 → 5071
[TX034] Transfer $103: A=3129 → 3026, B=5071 → 5174
[TX035] Transfer $366: B=5174 → 4808, A=3026 → 3392
[TX036] Transfer $702: B=4808 → 4106, A=3392 → 4094
[TX037] Transfer $340: B=4106 → 3766, A=4094 → 4434
[TX038] Transfer $332: B=3766 → 3434, A=4434 → 4766
[TX039] Transfer $911: B=3434 → 2523, A=4766 → 5677
[TX040] Transfer $104: B=2523 → 2419, A=5677 → 5781
[TX041] Thread T1: READ A=5781
[TX042] Thread T2: READ A=5781
[TX043] Thread T1: COMMIT A=5781 → 5666
[TX044] Thread T2: COMMIT A=5781 → 5611
[TX045] Transfer $7: B=2419 → 2412, A=5611 → 5618
[TX046] Transfer $397: A=5618 → 5221, B=2412 → 2809
[TX047] Transfer $535: B=2809 → 2274, A=5221 → 5756
[TX048] Transfer $300: B=2274 → 1974, A=5756 → 6056
[TX049] Transfer $75: A=6056 → 5981, B=1974 → 2049
[TX050] Transfer $363: B=2049 → 1686, A=5981 → 6344
[TX051] Transfer $111: B=1686 → 1575, A=6344 → 6455
[TX052] Transfer $915: A=6455 → 5540, B=1575 → 2490
[TX053] Transfer $268: B=2490 → 2222, A=5540 → 5808
[TX054] Transfer $957: A=5808 → 4851, B=2222 → 3179
[TX055] Transfer $149: B=3179 → 3030, A=4851 → 5000
[TX056] Transfer $543: A=5000 → 4457, B=3030 → 3573
[TX057] Transfer $19: B=3573 → 3554, A=4457 → 4476
[TX058] Transfer $842: A=4476 → 3634, B=3554 → 4396
[TX059] Transfer $749: B=4396 → 3647, A=3634 → 4383
[TX060] Transfer $22: A=4383 → 4361, B=3647 → 3669
[TX061] Transfer $200: A=4361 → 4161, B=3669 → 3869
[TX062] Transfer $831: A=4161 → 3330, B=3869 → 4700
[TX063] Transfer $940: B=4700 → 3760, A=3330 → 4270
[TX064] Transfer $64: A=4270 → 4206, B=3760 → 3824
[TX065] Transfer $818: A=4206 → 3388, B=3824 → 4642
[TX066] Transfer $555: B=4642 → 4087, A=3388 → 3943
[TX067] Transfer $625: A=3943 → 3318, B=4087 → 4712
[TX068] Transfer $219: B=4712 → 4493, A=3318 → 3537
[TX069] Transfer $599: B=4493 → 3894, A=3537 → 4136
[TX070] Transfer $845: B=3894 → 3049, A=4136 → 4981
[TX071] Transfer $890: B=3049 → 2159, A=4981 → 5871
[TX072] Transfer $862: B=2159 → 1297, A=5871 → 6733
[TX073] Transfer $158: B=1297 → 1139, A=6733 → 6891
[TX074] Transfer $216: B=1139 → 923, A=6891 → 7107
[TX075] Transfer $626: B=923 → 297, A=7107 → 7733
[TX076] Transfer $78: B=297 → 219, A=7733 → 7811
[TX077] Transfer $61: B=219 → 158, A=7811 → 7872
[TX078] Transfer $773: A=7872 → 7099, B=158 → 931
[TX079] Transfer $308: B=931 → 623, A=7099 → 7407
[TX080] Transfer $512: A=7407 → 6895, B=623 → 1135
POSSIBLE BUG TYPES (choose exactly one):
- CALC_ERROR: Mathematical calculation is incorrect
- NEGATIVE_BAL: Account balance becomes negative
- LOST_UPDATE: Concurrent update causes lost transaction
- DUPLICATE_TXN: Same transaction processed multiple times
Identify the SINGLE bug if any exists.
Respond with ONLY a JSON object:
{"bug_type": "<type>", "bug_location": "<TX_ID>"
Your response:
|
LOST_UPDATE
|
TX044
|
Thread T2 overwrites T1's change
|
LOST_UPDATE
| 80
|
{"bug_type": "LOST_UPDATE", "bug_location": "TX044", "explanation": "Thread T2 overwrites T1's change"}
|
{"bug_type": "LOST_UPDATE", "n_ops": 80}
|
97
|
Analyze this banking transaction log for bugs.
Each operation shows the complete state change.
INITIAL STATE:
{
"account_A": 4000,
"account_B": 4200,
"total": 8200
}
RULES:
1. Total money must remain constant (conservation)
2. No account can go negative
3. All calculations must be mathematically correct
TRANSACTION LOG:
[TX001] Transfer $894: B=4200 → 3306, A=4000 → 4894
[TX002] Transfer $77: B=3306 → 3229, A=4894 → 4971
[TX003] Transfer $359: A=4971 → 4612, B=3229 → 3588
[TX004] Transfer $10: A=4612 → 4602, B=3588 → 3598
[TX005] Transfer $954: B=3598 → 2644, A=4602 → 5556
[TX006] Transfer $635: A=5556 → 4921, B=2644 → 3279
[TX007] Transfer $98: B=3279 → 3181, A=4921 → 5019
[TX008] Transfer $145: A=5019 → 4874, B=3181 → 3326
[TX009] Transfer $487: B=3326 → 2839, A=4874 → 5361
[TX010] Transfer $665: B=2839 → 2174, A=5361 → 6026
[TX011] Transfer $417: A=6026 → 5609, B=2174 → 2591
[TX012] Transfer $492: B=2591 → 2099, A=5609 → 6101
[TX013] Transfer $492: A=6101 → 5609, B=2099 → 2591
[TX014] Transfer $675: B=2591 → 1916, A=5609 → 6284
[TX015] Transfer $951: A=6284 → 5333, B=1916 → 2867
[TX016] Transfer $559: A=5333 → 4774, B=2867 → 3426
[TX017] Transfer $91: B=3426 → 3335, A=4774 → 4865
[TX018] Transfer $472: B=3335 → 2863, A=4865 → 5337
[TX019] Transfer $608: B=2863 → 2255, A=5337 → 5945
[TX020] Transfer $437: A=5945 → 5508, B=2255 → 2692
[TX021] Transfer $456: B=2692 → 2236, A=5508 → 5964
[TX022] Transfer $460: A=5964 → 5504, B=2236 → 2696
[TX023] Transfer $974: B=2696 → 1722, A=5504 → 6478
[TX024] Transfer $175: B=1722 → 1547, A=6478 → 6653
[TX025] Transfer $476: A=6653 → 6177, B=1547 → 2023
[TX026] Transfer $829: B=2023 → 1194, A=6177 → 7006
[TX027] Transfer $140: B=1194 → 1054, A=7006 → 7146
[TX028] Transfer $639: B=1054 → 415, A=7146 → 7785
[TX029] Transfer $240: B=415 → 175, A=7785 → 8025
[TX030] Transfer $332: A=8025 → 7693, B=175 → 507
[TX031] Transfer $153: B=507 → 354, A=7693 → 7846
[TX032] Transfer $936: A=7846 → 6910, B=354 → 1290
[TX033] Transfer $326: B=1290 → 964, A=6910 → 7236
[TX034] Transfer $7246: A=7236 → -10, B=964 → 8210
[TX035] Balance check: A=-10
[TX036] Balance check: A=-10
[TX037] Transfer $566: B=8210 → 7644, A=-10 → 556
[TX038] Transfer $423: A=556 → 133, B=7644 → 8067
[TX039] Transfer $27: A=133 → 106, B=8067 → 8094
[TX040] Transfer $549: B=8094 → 7545, A=106 → 655
[TX041] Transfer $665: B=7545 → 6880, A=655 → 1320
[TX042] Transfer $540: A=1320 → 780, B=6880 → 7420
[TX043] Transfer $59: B=7420 → 7361, A=780 → 839
[TX044] Transfer $6: B=7361 → 7355, A=839 → 845
[TX045] Transfer $278: A=845 → 567, B=7355 → 7633
[TX046] Transfer $289: A=567 → 278, B=7633 → 7922
[TX047] Transfer $656: B=7922 → 7266, A=278 → 934
[TX048] Transfer $643: B=7266 → 6623, A=934 → 1577
[TX049] Transfer $794: A=1577 → 783, B=6623 → 7417
[TX050] Transfer $20: A=783 → 763, B=7417 → 7437
[TX051] Transfer $155: A=763 → 608, B=7437 → 7592
[TX052] Transfer $67: B=7592 → 7525, A=608 → 675
[TX053] Transfer $507: B=7525 → 7018, A=675 → 1182
[TX054] Transfer $587: B=7018 → 6431, A=1182 → 1769
[TX055] Transfer $679: A=1769 → 1090, B=6431 → 7110
[TX056] Transfer $187: B=7110 → 6923, A=1090 → 1277
[TX057] Transfer $873: A=1277 → 404, B=6923 → 7796
[TX058] Transfer $109: A=404 → 295, B=7796 → 7905
[TX059] Transfer $100: A=295 → 195, B=7905 → 8005
[TX060] Transfer $3: A=195 → 192, B=8005 → 8008
[TX061] Transfer $22: B=8008 → 7986, A=192 → 214
[TX062] Transfer $102: A=214 → 112, B=7986 → 8088
[TX063] Transfer $12: A=112 → 100, B=8088 → 8100
[TX064] Transfer $267: B=8100 → 7833, A=100 → 367
[TX065] Transfer $246: B=7833 → 7587, A=367 → 613
[TX066] Transfer $27: B=7587 → 7560, A=613 → 640
[TX067] Transfer $907: B=7560 → 6653, A=640 → 1547
[TX068] Transfer $314: A=1547 → 1233, B=6653 → 6967
[TX069] Transfer $924: B=6967 → 6043, A=1233 → 2157
[TX070] Transfer $263: B=6043 → 5780, A=2157 → 2420
[TX071] Transfer $557: A=2420 → 1863, B=5780 → 6337
[TX072] Transfer $372: B=6337 → 5965, A=1863 → 2235
[TX073] Transfer $964: B=5965 → 5001, A=2235 → 3199
[TX074] Transfer $262: B=5001 → 4739, A=3199 → 3461
[TX075] Transfer $289: B=4739 → 4450, A=3461 → 3750
[TX076] Transfer $919: B=4450 → 3531, A=3750 → 4669
[TX077] Transfer $951: B=3531 → 2580, A=4669 → 5620
[TX078] Transfer $520: A=5620 → 5100, B=2580 → 3100
[TX079] Transfer $577: A=5100 → 4523, B=3100 → 3677
[TX080] Transfer $672: A=4523 → 3851, B=3677 → 4349
[TX081] Transfer $877: B=4349 → 3472, A=3851 → 4728
[TX082] Transfer $223: B=3472 → 3249, A=4728 → 4951
[TX083] Transfer $851: B=3249 → 2398, A=4951 → 5802
[TX084] Transfer $248: B=2398 → 2150, A=5802 → 6050
[TX085] Transfer $883: A=6050 → 5167, B=2150 → 3033
[TX086] Transfer $375: B=3033 → 2658, A=5167 → 5542
[TX087] Transfer $948: B=2658 → 1710, A=5542 → 6490
[TX088] Transfer $164: B=1710 → 1546, A=6490 → 6654
[TX089] Transfer $674: B=1546 → 872, A=6654 → 7328
POSSIBLE BUG TYPES (choose exactly one):
- CALC_ERROR: Mathematical calculation is incorrect
- NEGATIVE_BAL: Account balance becomes negative
- LOST_UPDATE: Concurrent update causes lost transaction
- DUPLICATE_TXN: Same transaction processed multiple times
Identify the SINGLE bug if any exists.
Respond with ONLY a JSON object:
{"bug_type": "<type>", "bug_location": "<TX_ID>"
Your response:
|
NEGATIVE_BAL
|
TX034
|
Account balance goes negative
|
NEGATIVE_BAL
| 89
|
{"bug_type": "NEGATIVE_BAL", "bug_location": "TX034", "explanation": "Account balance goes negative"}
|
{"bug_type": "NEGATIVE_BAL", "n_ops": 89}
|
4
|
Analyze this banking transaction log for bugs.
Each operation shows the complete state change.
INITIAL STATE:
{
"account_A": 4000,
"account_B": 4200,
"total": 8200
}
RULES:
1. Total money must remain constant (conservation)
2. No account can go negative
3. All calculations must be mathematically correct
TRANSACTION LOG:
[TX001] Transfer $988: A=4000 → 3012, B=4200 → 5188
[TX002] Transfer $774: A=3012 → 2238, B=5188 → 5962
[TX003] Transfer $992: A=2238 → 1246, B=5962 → 6954
[TX004] Transfer $811: B=6954 → 6143, A=1246 → 2057
[TX005] Transfer $272: B=6143 → 5871, A=2057 → 2329
[TX006] Transfer $379: A=2329 → 1950, B=5871 → 6250
[TX007] Transfer $844: B=6250 → 5406, A=1950 → 2794
[TX008] Transfer $693: B=5406 → 4713, A=2794 → 3487
[TX009] Transfer $27: A=3487 → 3460, B=4713 → 4740
[TX010] Transfer $665: B=4740 → 4075, A=3460 → 4125
[TX011] Transfer $933: A=4125 → 3192, B=4075 → 5008
[TX012] Transfer $121: B=5008 → 4887, A=3192 → 3313
[TX013] Transfer $970: A=3313 → 2343, B=4887 → 5857
[TX014] Transfer $506: A=2343 → 1837, B=5857 → 6363
[TX015] Transfer $242: A=1837 → 1595, B=6363 → 6605
[TX016] Transfer $466: A=1595 → 1129, B=6605 → 7071
[TX017] Transfer $603: B=7071 → 6468, A=1129 → 1732
[TX018] Transfer $672: A=1732 → 1060, B=6468 → 7140
[TX019] Payment PAY1001: Transfer $317: A=1060 → 743, B=7140 → 7457
[TX020] Transfer $35: B=7457 → 7422, A=743 → 778
[TX021] Transfer $456: B=7422 → 6966, A=778 → 1234
[TX022] Transfer $877: B=6966 → 6089, A=1234 → 2111
[TX023] Transfer $704: B=6089 → 5385, A=2111 → 2815
[TX024] Transfer $64: B=5385 → 5321, A=2815 → 2879
[TX025] Transfer $196: B=5321 → 5125, A=2879 → 3075
[TX026] Transfer $95: A=3075 → 2980, B=5125 → 5220
[TX027] Transfer $53: A=2980 → 2927, B=5220 → 5273
[TX028] Transfer $130: B=5273 → 5143, A=2927 → 3057
[TX029] Transfer $851: A=3057 → 2206, B=5143 → 5994
[TX030] Transfer $834: A=2206 → 1372, B=5994 → 6828
[TX031] Transfer $794: A=1372 → 578, B=6828 → 7622
[TX032] Transfer $143: A=578 → 435, B=7622 → 7765
[TX033] Transfer $278: A=435 → 157, B=7765 → 8043
[TX034] Transfer $114: B=8043 → 7929, A=157 → 271
[TX035] Transfer $5: A=271 → 266, B=7929 → 7934
[TX036] Transfer $604: B=7934 → 7330, A=266 → 870
[TX037] Transfer $180: B=7330 → 7150, A=870 → 1050
[TX038] Transfer $131: B=7150 → 7019, A=1050 → 1181
[TX039] Transfer $765: B=7019 → 6254, A=1181 → 1946
[TX040] Transfer $461: A=1946 → 1485, B=6254 → 6715
[TX041] Transfer $464: B=6715 → 6251, A=1485 → 1949
[TX042] Transfer $746: A=1949 → 1203, B=6251 → 6997
[TX043] Transfer $660: B=6997 → 6337, A=1203 → 1863
[TX044] Transfer $492: A=1863 → 1371, B=6337 → 6829
[TX045] Transfer $704: B=6829 → 6125, A=1371 → 2075
[TX046] Transfer $731: A=2075 → 1344, B=6125 → 6856
[TX047] Transfer $922: B=6856 → 5934, A=1344 → 2266
[TX048] Transfer $624: A=2266 → 1642, B=5934 → 6558
[TX049] Transfer $131: A=1642 → 1511, B=6558 → 6689
[TX050] Transfer $392: B=6689 → 6297, A=1511 → 1903
[TX051] Transfer $519: B=6297 → 5778, A=1903 → 2422
[TX052] Transfer $814: B=5778 → 4964, A=2422 → 3236
[TX053] Transfer $442: A=3236 → 2794, B=4964 → 5406
[TX054] Transfer $425: B=5406 → 4981, A=2794 → 3219
[TX055] Transfer $410: B=4981 → 4571, A=3219 → 3629
[TX056] Transfer $322: B=4571 → 4249, A=3629 → 3951
[TX057] Transfer $683: B=4249 → 3566, A=3951 → 4634
[TX058] Transfer $978: B=3566 → 2588, A=4634 → 5612
[TX059] Transfer $70: A=5612 → 5542, B=2588 → 2658
[TX060] Transfer $97: A=5542 → 5445, B=2658 → 2755
[TX061] Transfer $764: B=2755 → 1991, A=5445 → 6209
[TX062] Transfer $571: B=1991 → 1420, A=6209 → 6780
[TX063] Payment PAY1001: Transfer $317: A=6780 → 6463, B=1420 → 1737
[TX064] Transfer $688: A=6463 → 5775, B=1737 → 2425
[TX065] Transfer $364: A=5775 → 5411, B=2425 → 2789
[TX066] Transfer $993: B=2789 → 1796, A=5411 → 6404
[TX067] Transfer $362: B=1796 → 1434, A=6404 → 6766
[TX068] Transfer $160: A=6766 → 6606, B=1434 → 1594
[TX069] Transfer $869: B=1594 → 725, A=6606 → 7475
[TX070] Transfer $867: A=7475 → 6608, B=725 → 1592
[TX071] Transfer $782: B=1592 → 810, A=6608 → 7390
[TX072] Transfer $441: B=810 → 369, A=7390 → 7831
[TX073] Transfer $31: A=7831 → 7800, B=369 → 400
[TX074] Transfer $721: A=7800 → 7079, B=400 → 1121
[TX075] Transfer $361: B=1121 → 760, A=7079 → 7440
[TX076] Transfer $892: A=7440 → 6548, B=760 → 1652
[TX077] Transfer $73: A=6548 → 6475, B=1652 → 1725
[TX078] Transfer $95: A=6475 → 6380, B=1725 → 1820
[TX079] Transfer $431: A=6380 → 5949, B=1820 → 2251
[TX080] Transfer $163: B=2251 → 2088, A=5949 → 6112
[TX081] Transfer $740: B=2088 → 1348, A=6112 → 6852
[TX082] Transfer $906: B=1348 → 442, A=6852 → 7758
[TX083] Transfer $163: A=7758 → 7595, B=442 → 605
[TX084] Transfer $280: A=7595 → 7315, B=605 → 885
[TX085] Transfer $499: B=885 → 386, A=7315 → 7814
[TX086] Transfer $141: B=386 → 245, A=7814 → 7955
[TX087] Transfer $355: A=7955 → 7600, B=245 → 600
[TX088] Transfer $147: B=600 → 453, A=7600 → 7747
[TX089] Transfer $25: B=453 → 428, A=7747 → 7772
[TX090] Transfer $615: A=7772 → 7157, B=428 → 1043
[TX091] Transfer $211: A=7157 → 6946, B=1043 → 1254
[TX092] Transfer $787: B=1254 → 467, A=6946 → 7733
POSSIBLE BUG TYPES (choose exactly one):
- CALC_ERROR: Mathematical calculation is incorrect
- NEGATIVE_BAL: Account balance becomes negative
- LOST_UPDATE: Concurrent update causes lost transaction
- DUPLICATE_TXN: Same transaction processed multiple times
Identify the SINGLE bug if any exists.
Respond with ONLY a JSON object:
{"bug_type": "<type>", "bug_location": "<TX_ID>"
Your response:
|
DUPLICATE_TXN
|
TX063
|
Payment PAY1001 processed twice
|
DUPLICATE_TXN
| 92
|
{"bug_type": "DUPLICATE_TXN", "bug_location": "TX063", "explanation": "Payment PAY1001 processed twice"}
|
{"bug_type": "DUPLICATE_TXN", "n_ops": 92}
|
54
|
Analyze this banking transaction log for bugs.
Each operation shows the complete state change.
INITIAL STATE:
{
"account_A": 4000,
"account_B": 4200,
"total": 8200
}
RULES:
1. Total money must remain constant (conservation)
2. No account can go negative
3. All calculations must be mathematically correct
TRANSACTION LOG:
[TX001] Transfer $916: A=4000 → 3084, B=4200 → 5116
[TX002] Transfer $149: A=3084 → 2935, B=5116 → 5265
[TX003] Transfer $249: A=2935 → 2686, B=5265 → 5514
[TX004] Transfer $847: B=5514 → 4667, A=2686 → 3533
[TX005] Transfer $976: A=3533 → 2557, B=4667 → 5643
[TX006] Transfer $18: A=2557 → 2539, B=5643 → 5661
[TX007] Transfer $125: A=2539 → 2414, B=5661 → 5786
[TX008] Transfer $849: A=2414 → 1565, B=5786 → 6635
[TX009] Transfer $261: A=1565 → 1304, B=6635 → 6896
[TX010] Transfer $434: B=6896 → 6462, A=1304 → 1738
[TX011] Transfer $12: B=6462 → 6450, A=1738 → 1750
[TX012] Transfer $399: B=6450 → 6051, A=1750 → 2149
[TX013] Transfer $313: B=6051 → 5738, A=2149 → 2462
[TX014] Transfer $652: B=5738 → 5086, A=2462 → 3114
[TX015] Transfer $34: A=3114 → 3080, B=5086 → 5120
[TX016] Transfer $361: B=5120 → 4759, A=3080 → 3441
[TX017] Transfer $719: A=3441 → 2722, B=4759 → 5478
[TX018] Transfer $772: B=5478 → 4706, A=2722 → 3494
[TX019] Transfer $707: A=3494 → 2787, B=4706 → 5413
[TX020] Transfer $29: B=5413 → 5384, A=2787 → 2816
[TX021] Transfer $987: B=5384 → 4397, A=2816 → 3803
[TX022] Transfer $488: B=4397 → 3909, A=3803 → 4291
[TX023] Transfer $86: B=3909 → 3823, A=4291 → 4377
[TX024] Transfer $467: A=4377 → 3910, B=3823 → 4290
[TX025] Transfer $249: B=4290 → 4041, A=3910 → 4159
[TX026] Transfer $332: B=4041 → 3709, A=4159 → 4491
[TX027] Transfer $223: B=3709 → 3486, A=4491 → 4714
[TX028] Transfer $12: B=3486 → 3474, A=4714 → 4726
[TX029] Transfer $959: A=4726 → 3767, B=3474 → 4433
[TX030] Transfer $516: B=4433 → 3917, A=3767 → 4283
[TX031] Transfer $283: A=4283 → 4000, B=3917 → 4200
[TX032] Transfer $261: B=4200 → 3939, A=4000 → 4261
[TX033] Transfer $180: A=4261 → 4081, B=3939 → 4119
[TX034] Transfer $876: B=4119 → 3243, A=4081 → 4957
[TX035] Transfer $299: A=4957 → 4658, B=3243 → 3542
[TX036] Transfer $114: B=3542 → 3428, A=4658 → 4772
[TX037] Transfer $205: A=4772 → 4567, B=3428 → 3633
[TX038] Transfer $257: B=3633 → 3376, A=4567 → 4824
[TX039] Transfer $796: A=4824 → 4028, B=3376 → 4172
[TX040] Transfer $46: A=4028 → 3982, B=4172 → 4218
[TX041] Transfer $230: B=4218 → 3988, A=3982 → 4212
[TX042] Transfer $236: B=3988 → 3752, A=4212 → 4448
[TX043] Transfer $105: B=3752 → 3647, A=4448 → 4553
[TX044] Transfer $137: A=4553 → 4416, B=3647 → 3784
[TX045] Transfer $510: A=4416 → 3906, B=3784 → 4294
[TX046] Transfer $23: B=4294 → 4271, A=3906 → 3929
[TX047] Transfer $430: B=4271 → 3841, A=3929 → 4359
[TX048] Transfer $287: B=3841 → 3554, A=4359 → 4646
[TX049] Transfer $70: B=3554 → 3484, A=4646 → 4716
[TX050] Transfer $271: A=4716 → 4445, B=3484 → 3755
[TX051] Transfer $412: B=3755 → 3343, A=4445 → 4857
[TX052] Transfer $125: A=4857 → 4732, B=3343 → 3468
[TX053] Transfer $90: A=4732 → 4642, B=3468 → 3558
[TX054] Transfer $458: A=4642 → 4184, B=3558 → 4016
[TX055] Transfer $491: B=4016 → 3525, A=4184 → 4675
[TX056] Transfer $598: A=4675 → 4077, B=3525 → 4123
[TX057] Transfer $575: B=4123 → 3548, A=4077 → 4652
[TX058] Transfer $209: A=4652 → 4443, B=3548 → 3757
[TX059] Transfer $138: A=4443 → 4305, B=3757 → 3895
[TX060] Transfer $382: B=3895 → 3513, A=4305 → 4687
[TX061] Transfer $117: A=4687 → 4570, B=3513 → 3630
[TX062] Transfer $312: B=3630 → 3318, A=4570 → 4882
[TX063] Transfer $944: A=4882 → 3938, B=3318 → 4262
[TX064] Transfer $822: A=3938 → 3116, B=4262 → 5084
[TX065] Transfer $681: A=3116 → 2435, B=5084 → 5765
[TX066] Transfer $492: B=5765 → 5273, A=2435 → 2927
[TX067] Transfer $178: A=2927 → 2749, B=5273 → 5451
[TX068] Transfer $151: B=5451 → 5300, A=2749 → 2900
[TX069] Transfer $883: A=2900 → 2017, B=5300 → 6183
[TX070] Transfer $527: A=2017 → 1490, B=6183 → 6710
[TX071] Transfer $254: A=1490 → 1236, B=6710 → 6964
[TX072] Transfer $962: B=6964 → 6002, A=1236 → 2198
[TX073] Transfer $418: A=2198 → 1780, B=6002 → 6420
[TX074] Transfer $45: A=1780 → 1735, B=6420 → 6465
[TX075] Transfer $30: B=6465 → 6435, A=1735 → 1765
[TX076] Transfer $402: A=1765 → 1363, B=6435 → 6837
[TX077] Transfer $768: B=6837 → 6069, A=1363 → 2131
[TX078] Transfer $631: A=2131 → 1500, B=6069 → 6700
[TX079] Transfer $249: B=6700 → 6451, A=1500 → 1749
[TX080] Transfer $793: B=6451 → 5658, A=1749 → 2542
[TX081] Transfer $616: A=2542 → 1926, B=5658 → 6274
[TX082] Transfer $69: A=1926 → 1857, B=6274 → 6343
[TX083] Transfer $793: A=1857 → 1064, B=6343 → 7136
[TX084] Transfer $286: A=1064 → 778, B=7136 → 7422
[TX085] Transfer $477: B=7422 → 6945, A=778 → 1255
[TX086] Transfer $858: B=6945 → 6087, A=1255 → 2113
[TX087] Transfer $877: B=6087 → 5210, A=2113 → 2990
[TX088] Transfer $397: B=5210 → 4813, A=2990 → 3387
[TX089] Transfer $347: A=3387 → 3040, B=4813 → 5160
[TX090] Transfer $1000: A=3040 → 2040, B=5160 → 6160
[TX091] Transfer $259: B=6160 → 5901, A=2040 → 2299
[TX092] Transfer $897: B=5901 → 5004, A=2299 → 3196
[TX093] Transfer $322: B=5004 → 4682, A=3196 → 3518
[TX094] Transfer $581: B=4682 → 4101, A=3518 → 4099
[TX095] Transfer $997: A=4099 → 3102, B=4101 → 5098
[TX096] Transfer $847: B=5098 → 4251, A=3102 → 3949
[TX097] Transfer $287: B=4251 → 3964, A=3949 → 4236
[TX098] Transfer $687: B=3964 → 3277, A=4236 → 4923
[TX099] Transfer $823: A=4923 → 4100, B=3277 → 4100
[TX100] Transfer $705: B=4100 → 3395, A=4100 → 4805
[TX101] Transfer $211: B=3395 → 3184, A=4805 → 5016
[TX102] Transfer $122: B=3184 → 3062, A=5016 → 5138
[TX103] Transfer $212: B=3062 → 2850, A=5138 → 5350
[TX104] Transfer $910: B=2850 → 1940, A=5350 → 6260
[TX105] Transfer $253: B=1940 → 1687, A=6260 → 6513
[TX106] Transfer $736: B=1687 → 951, A=6513 → 7249
[TX107] Transfer $552: B=951 → 399, A=7249 → 7801
[TX108] Transfer $408: B=399 → -9, A=7801 → 8209
[TX109] Transfer $129: A=8209 → 8080, B=-9 → 120
[TX110] Transfer $2: B=120 → 118, A=8080 → 8082
[TX111] Transfer $833: A=8082 → 7249, B=118 → 951
[TX112] Transfer $467: B=951 → 484, A=7249 → 7716
POSSIBLE BUG TYPES (choose exactly one):
- CALC_ERROR: Mathematical calculation is incorrect
- NEGATIVE_BAL: Account balance becomes negative
- LOST_UPDATE: Concurrent update causes lost transaction
- DUPLICATE_TXN: Same transaction processed multiple times
Identify the SINGLE bug if any exists.
Respond with ONLY a JSON object:
{"bug_type": "<type>", "bug_location": "<TX_ID>"
Your response:
|
NEGATIVE_BAL
|
TX108
|
Account balance goes negative
|
NEGATIVE_BAL
| 112
|
{"bug_type": "NEGATIVE_BAL", "bug_location": "TX108", "explanation": "Account balance goes negative"}
|
{"bug_type": "NEGATIVE_BAL", "n_ops": 112}
|
75
|
Analyze this banking transaction log for bugs.
Each operation shows the complete state change.
INITIAL STATE:
{
"account_A": 4000,
"account_B": 4200,
"total": 8200
}
RULES:
1. Total money must remain constant (conservation)
2. No account can go negative
3. All calculations must be mathematically correct
TRANSACTION LOG:
[TX001] Transfer $754: B=4200 → 3446, A=4000 → 4754
[TX002] Transfer $720: A=4754 → 4034, B=3446 → 4166
[TX003] Transfer $379: B=4166 → 3787, A=4034 → 4413
[TX004] Transfer $784: B=3787 → 3003, A=4413 → 5197
[TX005] Transfer $590: A=5197 → 4607, B=3003 → 3593
[TX006] Transfer $333: A=4607 → 4274, B=3593 → 3926
[TX007] Transfer $317: B=3926 → 3609, A=4274 → 4591
[TX008] Transfer $335: A=4591 → 4256, B=3609 → 3944
[TX009] Transfer $689: A=4256 → 3567, B=3944 → 4633
[TX010] Transfer $784: B=4633 → 3849, A=3567 → 4351
[TX011] Transfer $909: B=3849 → 2940, A=4351 → 5260
[TX012] Transfer $457: A=5260 → 4803, B=2940 → 3397
[TX013] Transfer $148: B=3397 → 3249, A=4803 → 4951
[TX014] Transfer $606: B=3249 → 2643, A=4951 → 5557
[TX015] Transfer $784: B=2643 → 1859, A=5557 → 6341
[TX016] Transfer $498: B=1859 → 1361, A=6341 → 6839
[TX017] Transfer $568: A=6839 → 6271, B=1361 → 1929
[TX018] Transfer $704: B=1929 → 1225, A=6271 → 6975
[TX019] Transfer $574: B=1225 → 651, A=6975 → 7549
[TX020] Transfer $417: B=651 → 234, A=7549 → 7966
[TX021] Transfer $132: B=234 → 102, A=7966 → 8098
[TX022] Transfer $117: A=8098 → 7981, B=102 → 219
[TX023] Transfer $33: B=219 → 186, A=7981 → 8014
[TX024] Transfer $68: B=186 → 118, A=8014 → 8082
[TX025] Transfer $14: B=118 → 104, A=8082 → 8096
[TX026] Transfer $301: A=8096 → 7795, B=104 → 405
[TX027] Transfer $298: A=7795 → 7497, B=405 → 703
[TX028] Transfer $172: B=703 → 531, A=7497 → 7669
[TX029] Transfer $169: B=531 → 362, A=7669 → 7838
[TX030] Transfer $857: A=7838 → 6981, B=362 → 1219
[TX031] Transfer $410: A=6981 → 6571, B=1219 → 1629
[TX032] Transfer $42: A=6571 → 6529, B=1629 → 1671
[TX033] Transfer $298: B=1671 → 1373, A=6529 → 6827
[TX034] Transfer $862: A=6827 → 5965, B=1373 → 2235
[TX035] Transfer $549: A=5965 → 5416, B=2235 → 2784
[TX036] Transfer $534: B=2784 → 2250, A=5416 → 5950
[TX037] Transfer $2: A=5950 → 5948, B=2250 → 2252
[TX038] Transfer $339: A=5948 → 5609, B=2252 → 2591
[TX039] Transfer $684: B=2591 → 1907, A=5609 → 6293
[TX040] Transfer $270: A=6293 → 6023, B=1907 → 2177
[TX041] Transfer $427: A=6023 → 5596, B=2177 → 2604
[TX042] Transfer $154: A=5596 → 5442, B=2604 → 2758
[TX043] Transfer $939: B=2758 → 1819, A=5442 → 6381
[TX044] Transfer $2: A=6381 → 6379, B=1819 → 1821
[TX045] Transfer $697: A=6379 → 5682, B=1821 → 2518
[TX046] Transfer $780: B=2518 → 1738, A=5682 → 6462
[TX047] Transfer $608: B=1738 → 1130, A=6462 → 7070
[TX048] Transfer $19: B=1130 → 1111, A=7070 → 7089
[TX049] Transfer $301: B=1111 → 810, A=7089 → 7390
[TX050] Transfer $787: A=7390 → 6603, B=810 → 1597
[TX051] Transfer $556: A=6603 → 6047, B=1597 → 2153
[TX052] Transfer $461: B=2153 → 1692, A=6047 → 6508
[TX053] Transfer $937: A=6508 → 5571, B=1692 → 2629
[TX054] Transfer $545: A=5571 → 5026, B=2629 → 3174
[TX055] Transfer $426: B=3174 → 2748, A=5026 → 5452
[TX056] Transfer $117: A=5452 → 5335, B=2748 → 2865
[TX057] Transfer $383: A=5335 → 4952, B=2865 → 3248
[TX058] Transfer $238: A=4952 → 4714, B=3248 → 3486
[TX059] Transfer $312: B=3486 → 3174, A=4714 → 5026
[TX060] Transfer $617: B=3174 → 2557, A=5026 → 5643
[TX061] Transfer $497: A=5643 → 5146, B=2557 → 3054
[TX062] Transfer $979: B=3054 → 2075, A=5146 → 6125
[TX063] Transfer $840: B=2075 → 1235, A=6125 → 6965
[TX064] Transfer $310: B=1235 → 925, A=6965 → 7275
[TX065] Transfer $147: A=7275 → 7128, B=925 → 1072
[TX066] Transfer $333: A=7128 → 6795, B=1072 → 1405
[TX067] Transfer $895: B=1405 → 510, A=6795 → 7690
[TX068] Transfer $163: B=510 → 347, A=7690 → 7853
[TX069] Transfer $49: B=347 → 298, A=7853 → 7902
[TX070] Transfer $625: A=7902 → 7277, B=298 → 923
[TX071] Transfer $243: A=7277 → 7034, B=923 → 1166
[TX072] Transfer $452: A=7034 → 6582, B=1166 → 1618
[TX073] Transfer $512: A=6582 → 6070, B=1618 → 2130
[TX074] Transfer $924: B=2130 → 1206, A=6070 → 6994
[TX075] Transfer $556: B=1206 → 650, A=6994 → 7550
[TX076] Transfer $383: B=650 → 267, A=7550 → 7933
[TX077] Transfer $336: A=7933 → 7597, B=267 → 603
[TX078] Transfer $870: A=7597 → 6727, B=603 → 1473
[TX079] Transfer $322: A=6727 → 6405, B=1473 → 1795
[TX080] Transfer $852: A=6405 → 5553, B=1795 → 2647
[TX081] Transfer $296: A=5553 → 5257, B=2647 → 2943
[TX082] Transfer $225: B=2943 → 2718, A=5257 → 5482
[TX083] Transfer $720: A=5482 → 4762, B=2718 → 3438
[TX084] Transfer $760: A=4762 → 4002, B=3438 → 4198
[TX085] Transfer $132: A=4002 → 3870, B=4198 → 4330
[TX086] Transfer $3873: A=3870 → -3, B=4330 → 8203
[TX087] Transfer $947: B=8203 → 7256, A=-3 → 944
[TX088] Transfer $508: A=944 → 436, B=7256 → 7764
[TX089] Transfer $140: A=436 → 296, B=7764 → 7904
[TX090] Transfer $144: A=296 → 152, B=7904 → 8048
[TX091] Transfer $569: B=8048 → 7479, A=152 → 721
[TX092] Transfer $187: B=7479 → 7292, A=721 → 908
[TX093] Transfer $699: B=7292 → 6593, A=908 → 1607
[TX094] Transfer $731: B=6593 → 5862, A=1607 → 2338
[TX095] Transfer $417: B=5862 → 5445, A=2338 → 2755
[TX096] Transfer $502: A=2755 → 2253, B=5445 → 5947
[TX097] Transfer $461: B=5947 → 5486, A=2253 → 2714
[TX098] Transfer $346: A=2714 → 2368, B=5486 → 5832
[TX099] Transfer $373: A=2368 → 1995, B=5832 → 6205
[TX100] Transfer $266: B=6205 → 5939, A=1995 → 2261
[TX101] Transfer $316: B=5939 → 5623, A=2261 → 2577
[TX102] Transfer $237: B=5623 → 5386, A=2577 → 2814
[TX103] Transfer $367: B=5386 → 5019, A=2814 → 3181
[TX104] Transfer $450: A=3181 → 2731, B=5019 → 5469
[TX105] Transfer $855: B=5469 → 4614, A=2731 → 3586
[TX106] Transfer $366: B=4614 → 4248, A=3586 → 3952
[TX107] Transfer $206: B=4248 → 4042, A=3952 → 4158
[TX108] Transfer $869: B=4042 → 3173, A=4158 → 5027
[TX109] Transfer $343: A=5027 → 4684, B=3173 → 3516
[TX110] Transfer $524: A=4684 → 4160, B=3516 → 4040
[TX111] Transfer $201: A=4160 → 3959, B=4040 → 4241
[TX112] Transfer $433: A=3959 → 3526, B=4241 → 4674
[TX113] Transfer $706: A=3526 → 2820, B=4674 → 5380
POSSIBLE BUG TYPES (choose exactly one):
- CALC_ERROR: Mathematical calculation is incorrect
- NEGATIVE_BAL: Account balance becomes negative
- LOST_UPDATE: Concurrent update causes lost transaction
- DUPLICATE_TXN: Same transaction processed multiple times
Identify the SINGLE bug if any exists.
Respond with ONLY a JSON object:
{"bug_type": "<type>", "bug_location": "<TX_ID>"
Your response:
|
NEGATIVE_BAL
|
TX086
|
Account balance goes negative
|
NEGATIVE_BAL
| 113
|
{"bug_type": "NEGATIVE_BAL", "bug_location": "TX086", "explanation": "Account balance goes negative"}
|
{"bug_type": "NEGATIVE_BAL", "n_ops": 113}
|
11
|
Analyze this banking transaction log for bugs.
Each operation shows the complete state change.
INITIAL STATE:
{
"account_A": 4000,
"account_B": 4200,
"total": 8200
}
RULES:
1. Total money must remain constant (conservation)
2. No account can go negative
3. All calculations must be mathematically correct
TRANSACTION LOG:
[TX001] Transfer $163: A=4000 → 3837, B=4200 → 4363
[TX002] Transfer $917: B=4363 → 3446, A=3837 → 4754
[TX003] Transfer $760: A=4754 → 3994, B=3446 → 4206
[TX004] Transfer $881: A=3994 → 3113, B=4206 → 5087
[TX005] Transfer $49: A=3113 → 3064, B=5087 → 5136
[TX006] Transfer $394: B=5136 → 4742, A=3064 → 3458
[TX007] Transfer $955: A=3458 → 2503, B=4742 → 5697
[TX008] Transfer $231: A=2503 → 2272, B=5697 → 5928
[TX009] Transfer $428: B=5928 → 5500, A=2272 → 2700
[TX010] Transfer $847: B=5500 → 4653, A=2700 → 3547
[TX011] Transfer $124: A=3547 → 3423, B=4653 → 4777
[TX012] Transfer $230: A=3423 → 3193, B=4777 → 5007
[TX013] Transfer $72: A=3193 → 3121, B=5007 → 5079
[TX014] Transfer $794: B=5079 → 4285, A=3121 → 3915
[TX015] Transfer $90: B=4285 → 4195, A=3915 → 4005
[TX016] Transfer $379: B=4195 → 3816, A=4005 → 4384
[TX017] Transfer $579: A=4384 → 3805, B=3816 → 4395
[TX018] Transfer $477: B=4395 → 3918, A=3805 → 4282
[TX019] Transfer $793: B=3918 → 3125, A=4282 → 5075
[TX020] Transfer $156: A=5075 → 4919, B=3125 → 3281
[TX021] Transfer $26: A=4919 → 4893, B=3281 → 3307
[TX022] Transfer $653: A=4893 → 4240, B=3307 → 3960
[TX023] Transfer $3: A=4240 → 4237, B=3960 → 3963
[TX024] Transfer $108: B=3963 → 3855, A=4237 → 4345
[TX025] Transfer $431: A=4345 → 3914, B=3855 → 4286
[TX026] Transfer $997: B=4286 → 3289, A=3914 → 4911
[TX027] Transfer $97: A=4911 → 4814, B=3289 → 3386
[TX028] Transfer $920: A=4814 → 3894, B=3386 → 4306
[TX029] Transfer $471: B=4306 → 3835, A=3894 → 4365
[TX030] Transfer $519: A=4365 → 3846, B=3835 → 4354
[TX031] Transfer $78: A=3846 → 3768, B=4354 → 4432
[TX032] Transfer $680: A=3768 → 3088, B=4432 → 5112
[TX033] Transfer $300: A=3088 → 2788, B=5112 → 5412
[TX034] Transfer $950: B=5412 → 4462, A=2788 → 3738
[TX035] Transfer $327: B=4462 → 4135, A=3738 → 4065
[TX036] Transfer $241: B=4135 → 3894, A=4065 → 4306
[TX037] Transfer $141: A=4306 → 4165, B=3894 → 4035
[TX038] Transfer $110: A=4165 → 4055, B=4035 → 4145
[TX039] Transfer $479: A=4055 → 3576, B=4145 → 4624
[TX040] Transfer $125: B=4624 → 4499, A=3576 → 3701
[TX041] Transfer $464: B=4499 → 4035, A=3701 → 4165
[TX042] Transfer $273: B=4035 → 3762, A=4165 → 4438
[TX043] Transfer $163: A=4438 → 4275, B=3762 → 3925
[TX044] Transfer $222: B=3925 → 3703, A=4275 → 4497
[TX045] Transfer $95: B=3703 → 3608, A=4497 → 4592
[TX046] Transfer $407: A=4592 → 4185, B=3608 → 4015
[TX047] Transfer $268: A=4185 → 3917, B=4015 → 4283
[TX048] Transfer $976: A=3917 → 2941, B=4283 → 5259
[TX049] Transfer $571: B=5259 → 4688, A=2941 → 3512
[TX050] Transfer $475: A=3512 → 3037, B=4688 → 5163
[TX051] Transfer $126: A=3037 → 2911, B=5163 → 5289
[TX052] Transfer $852: A=2911 → 2059, B=5289 → 6141
[TX053] Transfer $204: A=2059 → 1855, B=6141 → 6345
[TX054] Transfer $704: B=6345 → 5641, A=1855 → 2559
[TX055] Transfer $941: A=2559 → 1618, B=5641 → 6582
[TX056] Transfer $68: A=1618 → 1550, B=6582 → 6650
[TX057] Transfer $830: A=1550 → 720, B=6650 → 7480
[TX058] Transfer $341: A=720 → 379, B=7480 → 7821
[TX059] Transfer $238: A=379 → 141, B=7821 → 8059
[TX060] Transfer $38: A=141 → 103, B=8059 → 8097
[TX061] Transfer $510: B=8097 → 7587, A=103 → 613
[TX062] Transfer $438: A=613 → 175, B=7587 → 8025
[TX063] Transfer $29: A=175 → 146, B=8025 → 8054
[TX064] Transfer $19: A=146 → 127, B=8054 → 8073
[TX065] Transfer $8075: B=8073 → -2, A=127 → 8202
[TX066] Transfer $512: A=8202 → 7690, B=-2 → 510
[TX067] Transfer $33: B=510 → 477, A=7690 → 7723
[TX068] Transfer $394: A=7723 → 7329, B=477 → 871
[TX069] Transfer $206: A=7329 → 7123, B=871 → 1077
[TX070] Transfer $393: A=7123 → 6730, B=1077 → 1470
[TX071] Transfer $559: B=1470 → 911, A=6730 → 7289
[TX072] Transfer $581: B=911 → 330, A=7289 → 7870
[TX073] Transfer $71: B=330 → 259, A=7870 → 7941
[TX074] Transfer $328: A=7941 → 7613, B=259 → 587
[TX075] Transfer $919: A=7613 → 6694, B=587 → 1506
[TX076] Transfer $830: B=1506 → 676, A=6694 → 7524
[TX077] Transfer $240: B=676 → 436, A=7524 → 7764
[TX078] Transfer $255: A=7764 → 7509, B=436 → 691
POSSIBLE BUG TYPES (choose exactly one):
- CALC_ERROR: Mathematical calculation is incorrect
- NEGATIVE_BAL: Account balance becomes negative
- LOST_UPDATE: Concurrent update causes lost transaction
- DUPLICATE_TXN: Same transaction processed multiple times
Identify the SINGLE bug if any exists.
Respond with ONLY a JSON object:
{"bug_type": "<type>", "bug_location": "<TX_ID>"
Your response:
|
NEGATIVE_BAL
|
TX065
|
Account balance goes negative
|
NEGATIVE_BAL
| 78
|
{"bug_type": "NEGATIVE_BAL", "bug_location": "TX065", "explanation": "Account balance goes negative"}
|
{"bug_type": "NEGATIVE_BAL", "n_ops": 78}
|
69
|
Analyze this banking transaction log for bugs.
Each operation shows the complete state change.
INITIAL STATE:
{
"account_A": 4000,
"account_B": 4200,
"total": 8200
}
RULES:
1. Total money must remain constant (conservation)
2. No account can go negative
3. All calculations must be mathematically correct
TRANSACTION LOG:
[TX001] Transfer $925: A=4000 → 3075, B=4200 → 5125
[TX002] Transfer $266: A=3075 → 2809, B=5125 → 5391
[TX003] Transfer $159: B=5391 → 5232, A=2809 → 2968
[TX004] Transfer $229: B=5232 → 5003, A=2968 → 3197
[TX005] Transfer $481: A=3197 → 2716, B=5003 → 5484
[TX006] Transfer $996: B=5484 → 4488, A=2716 → 3712
[TX007] Transfer $264: B=4488 → 4224, A=3712 → 3976
[TX008] Transfer $894: A=3976 → 3082, B=4224 → 5118
[TX009] Transfer $544: A=3082 → 2538, B=5118 → 5662
[TX010] Transfer $884: A=2538 → 1654, B=5662 → 6546
[TX011] Transfer $41: B=6546 → 6505, A=1654 → 1695
[TX012] Transfer $200: B=6505 → 6305, A=1695 → 1895
[TX013] Transfer $914: A=1895 → 981, B=6305 → 7219
[TX014] Transfer $562: B=7219 → 6657, A=981 → 1543
[TX015] Transfer $327: B=6657 → 6330, A=1543 → 1870
[TX016] Transfer $945: A=1870 → 925, B=6330 → 7275
[TX017] Transfer $938: B=7275 → 6337, A=925 → 1863
[TX018] Transfer $340: A=1863 → 1523, B=6337 → 6677
[TX019] Transfer $458: B=6677 → 6219, A=1523 → 1981
[TX020] Transfer $723: B=6219 → 5496, A=1981 → 2704
[TX021] Transfer $370: A=2704 → 2334, B=5496 → 5866
[TX022] Transfer $362: B=5866 → 5504, A=2334 → 2696
[TX023] Transfer $985: A=2696 → 1711, B=5504 → 6489
[TX024] Transfer $212: B=6489 → 6277, A=1711 → 1923
[TX025] Transfer $610: A=1923 → 1313, B=6277 → 6887
[TX026] Transfer $925: A=1313 → 388, B=6887 → 7812
[TX027] Transfer $45: B=7812 → 7767, A=388 → 433
[TX028] Transfer $750: B=7767 → 7017, A=433 → 1183
[TX029] Transfer $912: A=1183 → 271, B=7017 → 7929
[TX030] Transfer $23: A=271 → 248, B=7929 → 7952
[TX031] Transfer $131: A=248 → 117, B=7952 → 8083
[TX032] Transfer $617: B=8083 → 7466, A=117 → 734
[TX033] Transfer $338: A=734 → 396, B=7466 → 7804
[TX034] Transfer $700: B=7804 → 7104, A=396 → 1096
[TX035] Transfer $705: B=7104 → 6399, A=1096 → 1801
[TX036] Transfer $651: A=1801 → 1150, B=6399 → 7050
[TX037] Transfer $736: A=1150 → 414, B=7050 → 7786
[TX038] Transfer $324: B=7786 → 7462, A=414 → 738
[TX039] Transfer $700: B=7462 → 6762, A=738 → 1438
[TX040] Transfer $916: A=1438 → 522, B=6762 → 7678
[TX041] Transfer $95: A=522 → 427, B=7678 → 7773
[TX042] Transfer $805: B=7773 → 6968, A=427 → 1232
[TX043] Transfer $12: B=6968 → 6956, A=1232 → 1244
[TX044] Transfer $779: A=1244 → 465, B=6956 → 7735
[TX045] Transfer $165: A=465 → 300, B=7735 → 7900
[TX046] Transfer $56: A=300 → 244, B=7900 → 7956
[TX047] Transfer $68: A=244 → 176, B=7956 → 8024
[TX048] Transfer $34: B=8024 → 7990, A=176 → 210
[TX049] Transfer $46: B=7990 → 7944, A=210 → 256
[TX050] Transfer $785: B=7944 → 7159, A=256 → 1041
[TX051] Transfer $866: B=7159 → 6293, A=1041 → 1907
[TX052] Payment PAY1017: Transfer $611: A=1907 → 1296, B=6293 → 6904
[TX053] Transfer $727: A=1296 → 569, B=6904 → 7631
[TX054] Transfer $937: B=7631 → 6694, A=569 → 1506
[TX055] Transfer $51: A=1506 → 1455, B=6694 → 6745
[TX056] Transfer $296: A=1455 → 1159, B=6745 → 7041
[TX057] Transfer $793: A=1159 → 366, B=7041 → 7834
[TX058] Transfer $62: A=366 → 304, B=7834 → 7896
[TX059] Transfer $91: A=304 → 213, B=7896 → 7987
[TX060] Transfer $29: A=213 → 184, B=7987 → 8016
[TX061] Transfer $520: B=8016 → 7496, A=184 → 704
[TX062] Transfer $75: B=7496 → 7421, A=704 → 779
[TX063] Transfer $980: B=7421 → 6441, A=779 → 1759
[TX064] Transfer $903: A=1759 → 856, B=6441 → 7344
[TX065] Transfer $356: A=856 → 500, B=7344 → 7700
[TX066] Transfer $353: A=500 → 147, B=7700 → 8053
[TX067] Transfer $48: B=8053 → 8005, A=147 → 195
[TX068] Transfer $74: B=8005 → 7931, A=195 → 269
[TX069] Transfer $106: A=269 → 163, B=7931 → 8037
[TX070] Transfer $661: B=8037 → 7376, A=163 → 824
[TX071] Transfer $586: A=824 → 238, B=7376 → 7962
[TX072] Transfer $77: B=7962 → 7885, A=238 → 315
[TX073] Transfer $490: B=7885 → 7395, A=315 → 805
[TX074] Transfer $798: B=7395 → 6597, A=805 → 1603
[TX075] Transfer $514: A=1603 → 1089, B=6597 → 7111
[TX076] Transfer $735: B=7111 → 6376, A=1089 → 1824
[TX077] Transfer $585: A=1824 → 1239, B=6376 → 6961
[TX078] Transfer $596: B=6961 → 6365, A=1239 → 1835
[TX079] Transfer $23: B=6365 → 6342, A=1835 → 1858
[TX080] Transfer $504: A=1858 → 1354, B=6342 → 6846
[TX081] Transfer $778: B=6846 → 6068, A=1354 → 2132
[TX082] Transfer $337: A=2132 → 1795, B=6068 → 6405
[TX083] Transfer $166: A=1795 → 1629, B=6405 → 6571
[TX084] Transfer $76: B=6571 → 6495, A=1629 → 1705
[TX085] Transfer $390: B=6495 → 6105, A=1705 → 2095
[TX086] Transfer $135: B=6105 → 5970, A=2095 → 2230
[TX087] Payment PAY1017: Transfer $611: A=2230 → 1619, B=5970 → 6581
[TX088] Transfer $294: B=6581 → 6287, A=1619 → 1913
[TX089] Transfer $552: A=1913 → 1361, B=6287 → 6839
[TX090] Transfer $598: B=6839 → 6241, A=1361 → 1959
[TX091] Transfer $679: A=1959 → 1280, B=6241 → 6920
[TX092] Transfer $810: A=1280 → 470, B=6920 → 7730
[TX093] Transfer $171: A=470 → 299, B=7730 → 7901
[TX094] Transfer $5: A=299 → 294, B=7901 → 7906
[TX095] Transfer $166: A=294 → 128, B=7906 → 8072
[TX096] Transfer $366: B=8072 → 7706, A=128 → 494
[TX097] Transfer $328: A=494 → 166, B=7706 → 8034
[TX098] Transfer $250: B=8034 → 7784, A=166 → 416
[TX099] Transfer $61: A=416 → 355, B=7784 → 7845
[TX100] Transfer $102: A=355 → 253, B=7845 → 7947
[TX101] Transfer $815: B=7947 → 7132, A=253 → 1068
[TX102] Transfer $290: A=1068 → 778, B=7132 → 7422
[TX103] Transfer $344: B=7422 → 7078, A=778 → 1122
[TX104] Transfer $879: B=7078 → 6199, A=1122 → 2001
[TX105] Transfer $177: A=2001 → 1824, B=6199 → 6376
[TX106] Transfer $173: B=6376 → 6203, A=1824 → 1997
POSSIBLE BUG TYPES (choose exactly one):
- CALC_ERROR: Mathematical calculation is incorrect
- NEGATIVE_BAL: Account balance becomes negative
- LOST_UPDATE: Concurrent update causes lost transaction
- DUPLICATE_TXN: Same transaction processed multiple times
Identify the SINGLE bug if any exists.
Respond with ONLY a JSON object:
{"bug_type": "<type>", "bug_location": "<TX_ID>"
Your response:
|
DUPLICATE_TXN
|
TX087
|
Payment PAY1017 processed twice
|
DUPLICATE_TXN
| 106
|
{"bug_type": "DUPLICATE_TXN", "bug_location": "TX087", "explanation": "Payment PAY1017 processed twice"}
|
{"bug_type": "DUPLICATE_TXN", "n_ops": 106}
|
86
|
Analyze this banking transaction log for bugs.
Each operation shows the complete state change.
INITIAL STATE:
{
"account_A": 4000,
"account_B": 4200,
"total": 8200
}
RULES:
1. Total money must remain constant (conservation)
2. No account can go negative
3. All calculations must be mathematically correct
TRANSACTION LOG:
[TX001] Transfer $328: A=4000 → 3672, B=4200 → 4528
[TX002] Transfer $554: B=4528 → 3974, A=3672 → 4226
[TX003] Transfer $781: B=3974 → 3193, A=4226 → 5007
[TX004] Transfer $184: A=5007 → 4823, B=3193 → 3377
[TX005] Transfer $699: A=4823 → 4124, B=3377 → 4076
[TX006] Transfer $405: A=4124 → 3719, B=4076 → 4481
[TX007] Transfer $246: A=3719 → 3473, B=4481 → 4727
[TX008] Transfer $702: B=4727 → 4025, A=3473 → 4175
[TX009] Transfer $677: B=4025 → 3348, A=4175 → 4852
[TX010] Transfer $157: B=3348 → 3191, A=4852 → 5009
[TX011] Transfer $163: B=3191 → 3028, A=5009 → 5172
[TX012] Transfer $996: B=3028 → 2032, A=5172 → 6168
[TX013] Transfer $710: B=2032 → 1322, A=6168 → 6878
[TX014] Transfer $889: B=1322 → 433, A=6878 → 7767
[TX015] Transfer $352: A=7767 → 7415, B=433 → 785
[TX016] Transfer $206: B=785 → 579, A=7415 → 7621
[TX017] Transfer $621: A=7621 → 7000, B=579 → 1200
[TX018] Transfer $271: B=1200 → 929, A=7000 → 7271
[TX019] Transfer $782: A=7271 → 6489, B=929 → 1711
[TX020] Transfer $45: B=1711 → 1666, A=6489 → 6534
[TX021] Transfer $612: B=1666 → 1054, A=6534 → 7146
[TX022] Transfer $697: A=7146 → 6449, B=1054 → 1751
[TX023] Transfer $555: A=6449 → 5894, B=1751 → 2306
[TX024] Transfer $82: B=2306 → 2224, A=5894 → 5976
[TX025] Transfer $699: A=5976 → 5277, B=2224 → 2923
[TX026] Transfer $389: A=5277 → 4888, B=2923 → 3312
[TX027] Transfer $345: A=4888 → 4543, B=3312 → 3657
[TX028] Transfer $576: B=3657 → 3081, A=4543 → 5119
[TX029] Transfer $168: A=5119 → 4951, B=3081 → 3249
[TX030] Transfer $192: B=3249 → 3057, A=4951 → 5143
[TX031] Transfer $610: A=5143 → 4533, B=3057 → 3667
[TX032] Transfer $304: B=3667 → 3363, A=4533 → 4837
[TX033] Transfer $152: B=3363 → 3211, A=4837 → 4989
[TX034] Transfer $233: A=4989 → 4756, B=3211 → 3444
[TX035] Transfer $489: B=3444 → 2955, A=4756 → 5245
[TX036] Transfer $374: B=2955 → 2581, A=5245 → 5619
[TX037] Transfer $493: B=2581 → 2088, A=5619 → 6112
[TX038] Transfer $942: A=6112 → 5170, B=2088 → 3030
[TX039] Transfer $456: A=5170 → 4714, B=3030 → 3486
[TX040] Transfer $401: A=4714 → 4313, B=3486 → 3887
[TX041] Transfer $748: A=4313 → 3565, B=3887 → 4635
[TX042] Transfer $433: A=3565 → 3132, B=4635 → 5068
[TX043] Transfer $419: B=5068 → 4649, A=3132 → 3551
[TX044] Transfer $186: A=3551 → 3365, B=4649 → 4835
[TX045] Transfer $721: A=3365 → 2644, B=4835 → 5556
[TX046] Transfer $374: B=5556 → 5182, A=2644 → 3018
[TX047] Transfer $143: A=3018 → 2875, B=5182 → 5325
[TX048] Transfer $759: B=5325 → 4566, A=2875 → 3634
[TX049] Transfer $134: B=4566 → 4432, A=3634 → 3768
[TX050] Transfer $834: B=4432 → 3598, A=3768 → 4602
[TX051] Transfer $223: B=3598 → 3375, A=4602 → 4825
[TX052] Transfer $51: B=3375 → 3324, A=4825 → 4876
[TX053] Transfer $404: B=3324 → 2920, A=4876 → 5280
[TX054] Transfer $407: A=5280 → 4873, B=2920 → 3327
[TX055] Transfer $446: B=3327 → 2881, A=4873 → 5319
[TX056] Transfer $47: A=5319 → 5272, B=2881 → 2928
[TX057] Transfer $664: A=5272 → 4608, B=2928 → 3592
[TX058] Transfer $859: B=3592 → 2733, A=4608 → 5467
[TX059] Transfer $13: A=5467 → 5454, B=2733 → 2746
[TX060] Transfer $608: A=5454 → 4846, B=2746 → 3354
[TX061] Transfer $62: A=4846 → 4784, B=3354 → 3416
[TX062] Transfer $148: A=4784 → 4636, B=3416 → 3564
[TX063] Transfer $25: B=3564 → 3539, A=4636 → 4661
[TX064] Transfer $163: B=3539 → 3376, A=4661 → 4824
[TX065] Transfer $777: A=4824 → 4047, B=3376 → 4153
[TX066] Transfer $714: B=4153 → 3439, A=4047 → 4761
[TX067] Transfer $880: B=3439 → 2559, A=4761 → 5641
[TX068] Transfer $994: A=5641 → 4647, B=2559 → 3553
[TX069] Transfer $52: B=3553 → 3501, A=4647 → 4699
[TX070] Transfer $138: B=3501 → 3363, A=4699 → 4837
[TX071] Transfer $941: B=3363 → 2422, A=4837 → 5778
[TX072] Transfer $679: B=2422 → 1743, A=5778 → 6457
[TX073] Transfer $832: B=1743 → 911, A=6457 → 7289
[TX074] Transfer $46: B=911 → 865, A=7289 → 7335
[TX075] Transfer $572: B=865 → 293, A=7335 → 7907
[TX076] Transfer $86: B=293 → 207, A=7907 → 7993
[TX077] Transfer $129: A=7993 → 7864, B=207 → 336
[TX078] Transfer $737: A=7864 → 7127, B=336 → 1073
[TX079] Transfer $646: B=1073 → 427, A=7127 → 7773
[TX080] Transfer $147: B=427 → 280, A=7773 → 7920
[TX081] Transfer $103: B=280 → 177, A=7920 → 8023
[TX082] Transfer $23: B=177 → 154, A=8023 → 8046
[TX083] Transfer $9: B=154 → 145, A=8046 → 8055
[TX084] Transfer $5: B=145 → 140, A=8055 → 8060
[TX085] Transfer $26: B=140 → 114, A=8060 → 8086
[TX086] Transfer $994: A=8086 → 7092, B=114 → 1108
[TX087] Transfer $832: B=1108 → 276, A=7092 → 7924
[TX088] Transfer $81: B=276 → 195, A=7924 → 8005
[TX089] Transfer $59: B=195 → 136, A=8005 → 8064
[TX090] Transfer $461: A=8064 → 7603, B=136 → 597
[TX091] Transfer $925: A=7603 → 6678, B=597 → 1522
[TX092] Transfer $136: B=1522 → 1386, A=6678 → 6814
[TX093] Transfer $820: A=6814 → 5994, B=1386 → 2206
[TX094] Transfer $518: A=5994 → 5476, B=2206 → 2724
[TX095] Transfer $74: B=2724 → 2650, A=5476 → 5550
[TX096] Transfer $699: B=2650 → 1951, A=5550 → 6249
[TX097] Transfer $453: A=6249 → 5796, B=1951 → 2404
[TX098] Transfer $435: A=5796 → 5361, B=2404 → 2839
[TX099] Transfer $325: B=2839 → 2514, A=5361 → 5686
[TX100] Transfer $357: B=2514 → 2157, A=5686 → 6043
[TX101] Transfer $384: B=2157 → 1773, A=6043 → 6427
[TX102] Transfer $263: A=6427 → 6164, B=1773 → 2036
[TX103] Transfer $216: B=2036 → 1820, A=6164 → 6380
[TX104] Transfer $316: A=6380 → 6064, B=1820 → 2134
[TX105] Transfer $728: B=2136 → 1408, A=6064 → 6792
[TX106] Transfer $751: B=1408 → 657, A=6792 → 7543
[TX107] Transfer $101: B=657 → 556, A=7543 → 7644
POSSIBLE BUG TYPES (choose exactly one):
- CALC_ERROR: Mathematical calculation is incorrect
- NEGATIVE_BAL: Account balance becomes negative
- LOST_UPDATE: Concurrent update causes lost transaction
- DUPLICATE_TXN: Same transaction processed multiple times
Identify the SINGLE bug if any exists.
Respond with ONLY a JSON object:
{"bug_type": "<type>", "bug_location": "<TX_ID>"
Your response:
|
CALC_ERROR
|
TX104
|
Mathematical calculation is incorrect
|
CALC_ERROR
| 107
|
{"bug_type": "CALC_ERROR", "bug_location": "TX104", "explanation": "Mathematical calculation is incorrect"}
|
{"bug_type": "CALC_ERROR", "n_ops": 107}
|
13
|
Analyze this banking transaction log for bugs.
Each operation shows the complete state change.
INITIAL STATE:
{
"account_A": 4000,
"account_B": 4200,
"total": 8200
}
RULES:
1. Total money must remain constant (conservation)
2. No account can go negative
3. All calculations must be mathematically correct
TRANSACTION LOG:
[TX001] Transfer $249: A=4000 → 3751, B=4200 → 4449
[TX002] Transfer $610: B=4449 → 3839, A=3751 → 4361
[TX003] Transfer $985: B=3839 → 2854, A=4361 → 5346
[TX004] Transfer $354: B=2854 → 2500, A=5346 → 5700
[TX005] Transfer $768: A=5700 → 4932, B=2500 → 3268
[TX006] Transfer $30: A=4932 → 4902, B=3268 → 3298
[TX007] Transfer $168: B=3298 → 3130, A=4902 → 5070
[TX008] Transfer $664: A=5070 → 4406, B=3130 → 3794
[TX009] Transfer $277: A=4406 → 4129, B=3794 → 4071
[TX010] Transfer $887: B=4071 → 3184, A=4129 → 5016
[TX011] Transfer $935: A=5016 → 4081, B=3184 → 4119
[TX012] Transfer $617: A=4081 → 3464, B=4119 → 4736
[TX013] Transfer $260: A=3464 → 3204, B=4736 → 4996
[TX014] Transfer $435: B=4996 → 4561, A=3204 → 3639
[TX015] Transfer $472: B=4561 → 4089, A=3639 → 4111
[TX016] Transfer $479: B=4089 → 3610, A=4111 → 4590
[TX017] Transfer $600: B=3610 → 3010, A=4590 → 5190
[TX018] Transfer $525: A=5190 → 4665, B=3010 → 3535
[TX019] Transfer $307: B=3535 → 3228, A=4665 → 4972
[TX020] Transfer $67: A=4972 → 4905, B=3228 → 3295
[TX021] Transfer $657: B=3295 → 2638, A=4905 → 5562
[TX022] Transfer $269: B=2638 → 2369, A=5562 → 5831
[TX023] Transfer $155: B=2369 → 2214, A=5831 → 5986
[TX024] Transfer $826: A=5986 → 5160, B=2214 → 3040
[TX025] Transfer $699: B=3040 → 2341, A=5160 → 5859
[TX026] Transfer $673: A=5859 → 5186, B=2341 → 3014
[TX027] Transfer $267: B=3014 → 2747, A=5186 → 5453
[TX028] Transfer $399: B=2747 → 2348, A=5453 → 5852
[TX029] Transfer $353: A=5852 → 5499, B=2348 → 2701
[TX030] Transfer $930: A=5499 → 4569, B=2701 → 3631
[TX031] Transfer $867: B=3631 → 2764, A=4569 → 5436
[TX032] Transfer $302: A=5436 → 5134, B=2764 → 3066
[TX033] Payment PAY1003: Transfer $133: A=5134 → 5001, B=3066 → 3199
[TX034] Transfer $971: B=3199 → 2228, A=5001 → 5972
[TX035] Transfer $229: B=2228 → 1999, A=5972 → 6201
[TX036] Transfer $764: B=1999 → 1235, A=6201 → 6965
[TX037] Transfer $809: B=1235 → 426, A=6965 → 7774
[TX038] Transfer $135: B=426 → 291, A=7774 → 7909
[TX039] Transfer $32: B=291 → 259, A=7909 → 7941
[TX040] Transfer $151: B=259 → 108, A=7941 → 8092
[TX041] Transfer $912: A=8092 → 7180, B=108 → 1020
[TX042] Transfer $890: A=7180 → 6290, B=1020 → 1910
[TX043] Transfer $425: B=1910 → 1485, A=6290 → 6715
[TX044] Transfer $142: A=6715 → 6573, B=1485 → 1627
[TX045] Transfer $421: A=6573 → 6152, B=1627 → 2048
[TX046] Transfer $325: B=2048 → 1723, A=6152 → 6477
[TX047] Transfer $501: A=6477 → 5976, B=1723 → 2224
[TX048] Transfer $322: B=2224 → 1902, A=5976 → 6298
[TX049] Transfer $464: A=6298 → 5834, B=1902 → 2366
[TX050] Transfer $781: B=2366 → 1585, A=5834 → 6615
[TX051] Transfer $503: A=6615 → 6112, B=1585 → 2088
[TX052] Transfer $631: A=6112 → 5481, B=2088 → 2719
[TX053] Transfer $415: B=2719 → 2304, A=5481 → 5896
[TX054] Transfer $394: B=2304 → 1910, A=5896 → 6290
[TX055] Transfer $548: A=6290 → 5742, B=1910 → 2458
[TX056] Transfer $974: A=5742 → 4768, B=2458 → 3432
[TX057] Transfer $777: A=4768 → 3991, B=3432 → 4209
[TX058] Transfer $694: A=3991 → 3297, B=4209 → 4903
[TX059] Transfer $233: A=3297 → 3064, B=4903 → 5136
[TX060] Transfer $134: B=5136 → 5002, A=3064 → 3198
[TX061] Transfer $517: A=3198 → 2681, B=5002 → 5519
[TX062] Transfer $68: B=5519 → 5451, A=2681 → 2749
[TX063] Transfer $973: A=2749 → 1776, B=5451 → 6424
[TX064] Transfer $747: B=6424 → 5677, A=1776 → 2523
[TX065] Transfer $911: B=5677 → 4766, A=2523 → 3434
[TX066] Transfer $925: A=3434 → 2509, B=4766 → 5691
[TX067] Transfer $770: B=5691 → 4921, A=2509 → 3279
[TX068] Transfer $972: A=3279 → 2307, B=4921 → 5893
[TX069] Transfer $235: B=5893 → 5658, A=2307 → 2542
[TX070] Transfer $218: A=2542 → 2324, B=5658 → 5876
[TX071] Transfer $128: A=2324 → 2196, B=5876 → 6004
[TX072] Transfer $386: B=6004 → 5618, A=2196 → 2582
[TX073] Transfer $610: B=5618 → 5008, A=2582 → 3192
[TX074] Transfer $671: A=3192 → 2521, B=5008 → 5679
[TX075] Transfer $708: A=2521 → 1813, B=5679 → 6387
[TX076] Transfer $456: A=1813 → 1357, B=6387 → 6843
[TX077] Transfer $562: B=6843 → 6281, A=1357 → 1919
[TX078] Transfer $720: B=6281 → 5561, A=1919 → 2639
[TX079] Transfer $713: A=2639 → 1926, B=5561 → 6274
[TX080] Transfer $432: A=1926 → 1494, B=6274 → 6706
[TX081] Transfer $639: A=1494 → 855, B=6706 → 7345
[TX082] Transfer $109: A=855 → 746, B=7345 → 7454
[TX083] Transfer $118: A=746 → 628, B=7454 → 7572
[TX084] Payment PAY1003: Transfer $133: A=628 → 495, B=7572 → 7705
[TX085] Transfer $103: A=495 → 392, B=7705 → 7808
[TX086] Transfer $269: A=392 → 123, B=7808 → 8077
[TX087] Transfer $15: A=123 → 108, B=8077 → 8092
[TX088] Transfer $42: B=8092 → 8050, A=108 → 150
[TX089] Transfer $706: B=8050 → 7344, A=150 → 856
[TX090] Transfer $242: B=7344 → 7102, A=856 → 1098
[TX091] Transfer $689: A=1098 → 409, B=7102 → 7791
[TX092] Transfer $295: A=409 → 114, B=7791 → 8086
[TX093] Transfer $974: B=8086 → 7112, A=114 → 1088
[TX094] Transfer $742: A=1088 → 346, B=7112 → 7854
[TX095] Transfer $166: A=346 → 180, B=7854 → 8020
[TX096] Transfer $39: A=180 → 141, B=8020 → 8059
[TX097] Transfer $53: B=8059 → 8006, A=141 → 194
[TX098] Transfer $7: A=194 → 187, B=8006 → 8013
[TX099] Transfer $822: B=8013 → 7191, A=187 → 1009
[TX100] Transfer $758: B=7191 → 6433, A=1009 → 1767
[TX101] Transfer $873: A=1767 → 894, B=6433 → 7306
[TX102] Transfer $143: A=894 → 751, B=7306 → 7449
[TX103] Transfer $368: A=751 → 383, B=7449 → 7817
[TX104] Transfer $901: B=7817 → 6916, A=383 → 1284
[TX105] Transfer $836: A=1284 → 448, B=6916 → 7752
[TX106] Transfer $118: B=7752 → 7634, A=448 → 566
[TX107] Transfer $987: B=7634 → 6647, A=566 → 1553
[TX108] Transfer $857: B=6647 → 5790, A=1553 → 2410
[TX109] Transfer $821: B=5790 → 4969, A=2410 → 3231
[TX110] Transfer $117: B=4969 → 4852, A=3231 → 3348
[TX111] Transfer $967: A=3348 → 2381, B=4852 → 5819
[TX112] Transfer $428: A=2381 → 1953, B=5819 → 6247
[TX113] Transfer $187: B=6247 → 6060, A=1953 → 2140
[TX114] Transfer $628: B=6060 → 5432, A=2140 → 2768
POSSIBLE BUG TYPES (choose exactly one):
- CALC_ERROR: Mathematical calculation is incorrect
- NEGATIVE_BAL: Account balance becomes negative
- LOST_UPDATE: Concurrent update causes lost transaction
- DUPLICATE_TXN: Same transaction processed multiple times
Identify the SINGLE bug if any exists.
Respond with ONLY a JSON object:
{"bug_type": "<type>", "bug_location": "<TX_ID>"
Your response:
|
DUPLICATE_TXN
|
TX084
|
Payment PAY1003 processed twice
|
DUPLICATE_TXN
| 114
|
{"bug_type": "DUPLICATE_TXN", "bug_location": "TX084", "explanation": "Payment PAY1003 processed twice"}
|
{"bug_type": "DUPLICATE_TXN", "n_ops": 114}
|
17
|
Analyze this banking transaction log for bugs.
Each operation shows the complete state change.
INITIAL STATE:
{
"account_A": 4000,
"account_B": 4200,
"total": 8200
}
RULES:
1. Total money must remain constant (conservation)
2. No account can go negative
3. All calculations must be mathematically correct
TRANSACTION LOG:
[TX001] Transfer $692: A=4000 → 3308, B=4200 → 4892
[TX002] Transfer $596: A=3308 → 2712, B=4892 → 5488
[TX003] Transfer $372: A=2712 → 2340, B=5488 → 5860
[TX004] Transfer $563: B=5860 → 5297, A=2340 → 2903
[TX005] Transfer $277: B=5297 → 5020, A=2903 → 3180
[TX006] Transfer $376: B=5020 → 4644, A=3180 → 3556
[TX007] Transfer $436: A=3556 → 3120, B=4644 → 5080
[TX008] Transfer $719: A=3120 → 2401, B=5080 → 5799
[TX009] Transfer $876: B=5799 → 4923, A=2401 → 3277
[TX010] Transfer $463: B=4923 → 4460, A=3277 → 3740
[TX011] Transfer $591: A=3740 → 3149, B=4460 → 5051
[TX012] Transfer $740: A=3149 → 2409, B=5051 → 5791
[TX013] Transfer $570: B=5791 → 5221, A=2409 → 2979
[TX014] Transfer $202: B=5221 → 5019, A=2979 → 3181
[TX015] Transfer $486: A=3181 → 2695, B=5019 → 5505
[TX016] Transfer $433: A=2695 → 2262, B=5505 → 5938
[TX017] Transfer $916: B=5938 → 5022, A=2262 → 3178
[TX018] Transfer $309: B=5022 → 4713, A=3178 → 3487
[TX019] Transfer $409: B=4713 → 4304, A=3487 → 3896
[TX020] Transfer $63: A=3896 → 3833, B=4304 → 4367
[TX021] Transfer $489: A=3833 → 3344, B=4367 → 4856
[TX022] Transfer $764: A=3344 → 2580, B=4856 → 5620
[TX023] Transfer $371: B=5620 → 5249, A=2580 → 2951
[TX024] Transfer $354: B=5249 → 4895, A=2951 → 3305
[TX025] Transfer $126: A=3305 → 3179, B=4895 → 5021
[TX026] Transfer $592: B=5021 → 4429, A=3179 → 3771
[TX027] Transfer $365: A=3771 → 3406, B=4429 → 4794
[TX028] Transfer $795: B=4794 → 3999, A=3406 → 4201
[TX029] Transfer $392: B=3999 → 3607, A=4201 → 4593
[TX030] Transfer $648: B=3607 → 2959, A=4593 → 5241
[TX031] Transfer $657: A=5241 → 4584, B=2959 → 3616
[TX032] Transfer $648: B=3616 → 2968, A=4584 → 5232
[TX033] Transfer $83: B=2968 → 2885, A=5232 → 5315
[TX034] Transfer $235: A=5315 → 5080, B=2885 → 3120
[TX035] Transfer $670: B=3120 → 2450, A=5080 → 5750
[TX036] Transfer $621: B=2450 → 1829, A=5750 → 6371
[TX037] Transfer $910: B=1829 → 919, A=6371 → 7281
[TX038] Transfer $767: B=919 → 152, A=7281 → 8048
[TX039] Transfer $12: B=152 → 140, A=8048 → 8060
[TX040] Transfer $130: A=8060 → 7930, B=140 → 270
[TX041] Thread T1: READ A=7930
[TX042] Thread T2: READ A=7930
[TX043] Thread T1: COMMIT A=7930 → 7816
[TX044] Thread T2: COMMIT A=7930 → 7860
[TX045] Transfer $408: A=7860 → 7452, B=270 → 678
[TX046] Transfer $67: A=7452 → 7385, B=678 → 745
[TX047] Transfer $28: B=745 → 717, A=7385 → 7413
[TX048] Transfer $108: B=717 → 609, A=7413 → 7521
[TX049] Transfer $45: B=609 → 564, A=7521 → 7566
[TX050] Transfer $119: B=564 → 445, A=7566 → 7685
[TX051] Transfer $455: A=7685 → 7230, B=445 → 900
[TX052] Transfer $541: A=7230 → 6689, B=900 → 1441
[TX053] Transfer $37: A=6689 → 6652, B=1441 → 1478
[TX054] Transfer $886: B=1478 → 592, A=6652 → 7538
[TX055] Transfer $447: B=592 → 145, A=7538 → 7985
[TX056] Transfer $10: B=145 → 135, A=7985 → 7995
[TX057] Transfer $648: A=7995 → 7347, B=135 → 783
[TX058] Transfer $357: B=783 → 426, A=7347 → 7704
[TX059] Transfer $47: B=426 → 379, A=7704 → 7751
[TX060] Transfer $189: B=379 → 190, A=7751 → 7940
[TX061] Transfer $21: B=190 → 169, A=7940 → 7961
[TX062] Transfer $2: B=169 → 167, A=7961 → 7963
[TX063] Transfer $295: A=7963 → 7668, B=167 → 462
[TX064] Transfer $354: B=462 → 108, A=7668 → 8022
[TX065] Transfer $4: B=108 → 104, A=8022 → 8026
[TX066] Transfer $819: A=8026 → 7207, B=104 → 923
[TX067] Transfer $817: B=923 → 106, A=7207 → 8024
[TX068] Transfer $195: A=8024 → 7829, B=106 → 301
[TX069] Transfer $103: B=301 → 198, A=7829 → 7932
[TX070] Transfer $734: A=7932 → 7198, B=198 → 932
[TX071] Transfer $227: B=932 → 705, A=7198 → 7425
[TX072] Transfer $434: B=705 → 271, A=7425 → 7859
[TX073] Transfer $293: A=7859 → 7566, B=271 → 564
[TX074] Transfer $98: B=564 → 466, A=7566 → 7664
[TX075] Transfer $141: A=7664 → 7523, B=466 → 607
[TX076] Transfer $328: B=607 → 279, A=7523 → 7851
[TX077] Transfer $71: B=279 → 208, A=7851 → 7922
[TX078] Transfer $43: B=208 → 165, A=7922 → 7965
[TX079] Transfer $52: A=7965 → 7913, B=165 → 217
[TX080] Transfer $997: A=7913 → 6916, B=217 → 1214
[TX081] Transfer $277: A=6916 → 6639, B=1214 → 1491
[TX082] Transfer $746: A=6639 → 5893, B=1491 → 2237
[TX083] Transfer $94: A=5893 → 5799, B=2237 → 2331
[TX084] Transfer $507: A=5799 → 5292, B=2331 → 2838
[TX085] Transfer $432: A=5292 → 4860, B=2838 → 3270
[TX086] Transfer $382: B=3270 → 2888, A=4860 → 5242
[TX087] Transfer $340: B=2888 → 2548, A=5242 → 5582
[TX088] Transfer $59: A=5582 → 5523, B=2548 → 2607
[TX089] Transfer $75: B=2607 → 2532, A=5523 → 5598
[TX090] Transfer $198: B=2532 → 2334, A=5598 → 5796
[TX091] Transfer $850: B=2334 → 1484, A=5796 → 6646
[TX092] Transfer $999: A=6646 → 5647, B=1484 → 2483
[TX093] Transfer $791: A=5647 → 4856, B=2483 → 3274
[TX094] Transfer $757: B=3274 → 2517, A=4856 → 5613
[TX095] Transfer $473: A=5613 → 5140, B=2517 → 2990
[TX096] Transfer $486: A=5140 → 4654, B=2990 → 3476
[TX097] Transfer $960: B=3476 → 2516, A=4654 → 5614
[TX098] Transfer $646: B=2516 → 1870, A=5614 → 6260
[TX099] Transfer $261: A=6260 → 5999, B=1870 → 2131
[TX100] Transfer $205: B=2131 → 1926, A=5999 → 6204
[TX101] Transfer $886: B=1926 → 1040, A=6204 → 7090
[TX102] Transfer $243: A=7090 → 6847, B=1040 → 1283
[TX103] Transfer $17: B=1283 → 1266, A=6847 → 6864
[TX104] Transfer $600: A=6864 → 6264, B=1266 → 1866
[TX105] Transfer $810: A=6264 → 5454, B=1866 → 2676
[TX106] Transfer $994: A=5454 → 4460, B=2676 → 3670
[TX107] Transfer $706: A=4460 → 3754, B=3670 → 4376
[TX108] Transfer $791: A=3754 → 2963, B=4376 → 5167
[TX109] Transfer $163: A=2963 → 2800, B=5167 → 5330
[TX110] Transfer $704: B=5330 → 4626, A=2800 → 3504
[TX111] Transfer $63: B=4626 → 4563, A=3504 → 3567
[TX112] Transfer $720: B=4563 → 3843, A=3567 → 4287
[TX113] Transfer $501: A=4287 → 3786, B=3843 → 4344
[TX114] Transfer $573: A=3786 → 3213, B=4344 → 4917
POSSIBLE BUG TYPES (choose exactly one):
- CALC_ERROR: Mathematical calculation is incorrect
- NEGATIVE_BAL: Account balance becomes negative
- LOST_UPDATE: Concurrent update causes lost transaction
- DUPLICATE_TXN: Same transaction processed multiple times
Identify the SINGLE bug if any exists.
Respond with ONLY a JSON object:
{"bug_type": "<type>", "bug_location": "<TX_ID>"
Your response:
|
LOST_UPDATE
|
TX044
|
Thread T2 overwrites T1's change
|
LOST_UPDATE
| 114
|
{"bug_type": "LOST_UPDATE", "bug_location": "TX044", "explanation": "Thread T2 overwrites T1's change"}
|
{"bug_type": "LOST_UPDATE", "n_ops": 114}
|
28
|
Analyze this banking transaction log for bugs.
Each operation shows the complete state change.
INITIAL STATE:
{
"account_A": 4000,
"account_B": 4200,
"total": 8200
}
RULES:
1. Total money must remain constant (conservation)
2. No account can go negative
3. All calculations must be mathematically correct
TRANSACTION LOG:
[TX001] Transfer $458: A=4000 → 3542, B=4200 → 4658
[TX002] Transfer $276: B=4658 → 4382, A=3542 → 3818
[TX003] Transfer $776: B=4382 → 3606, A=3818 → 4594
[TX004] Transfer $630: B=3606 → 2976, A=4594 → 5224
[TX005] Transfer $647: A=5224 → 4577, B=2976 → 3623
[TX006] Transfer $43: B=3623 → 3580, A=4577 → 4620
[TX007] Transfer $694: B=3580 → 2886, A=4620 → 5314
[TX008] Transfer $955: A=5314 → 4359, B=2886 → 3841
[TX009] Transfer $299: B=3841 → 3542, A=4359 → 4658
[TX010] Transfer $83: B=3542 → 3459, A=4658 → 4741
[TX011] Transfer $154: B=3459 → 3305, A=4741 → 4895
[TX012] Transfer $863: A=4895 → 4032, B=3305 → 4168
[TX013] Transfer $304: A=4032 → 3728, B=4168 → 4472
[TX014] Transfer $941: A=3728 → 2787, B=4472 → 5413
[TX015] Transfer $524: A=2787 → 2263, B=5413 → 5937
[TX016] Transfer $98: B=5937 → 5839, A=2263 → 2361
[TX017] Transfer $365: B=5839 → 5474, A=2361 → 2726
[TX018] Transfer $789: B=5474 → 4685, A=2726 → 3515
[TX019] Transfer $760: A=3515 → 2755, B=4685 → 5445
[TX020] Transfer $807: B=5445 → 4638, A=2755 → 3562
[TX021] Transfer $48: A=3562 → 3514, B=4638 → 4686
[TX022] Transfer $899: A=3514 → 2615, B=4686 → 5585
[TX023] Transfer $603: B=5585 → 4982, A=2615 → 3218
[TX024] Transfer $640: B=4982 → 4342, A=3218 → 3858
[TX025] Transfer $991: B=4342 → 3351, A=3858 → 4849
[TX026] Transfer $191: A=4849 → 4658, B=3351 → 3542
[TX027] Transfer $894: A=4658 → 3764, B=3542 → 4436
[TX028] Transfer $549: A=3764 → 3215, B=4436 → 4985
[TX029] Transfer $406: A=3215 → 2809, B=4985 → 5391
[TX030] Transfer $177: A=2809 → 2632, B=5391 → 5568
[TX031] Transfer $710: B=5568 → 4858, A=2632 → 3342
[TX032] Transfer $312: B=4858 → 4546, A=3342 → 3654
[TX033] Transfer $825: B=4546 → 3721, A=3654 → 4479
[TX034] Transfer $130: B=3721 → 3591, A=4479 → 4609
[TX035] Transfer $197: A=4609 → 4412, B=3591 → 3788
[TX036] Transfer $714: A=4412 → 3698, B=3788 → 4502
[TX037] Transfer $216: A=3698 → 3482, B=4502 → 4718
[TX038] Transfer $667: B=4718 → 4051, A=3482 → 4149
[TX039] Transfer $864: A=4149 → 3285, B=4051 → 4915
[TX040] Transfer $310: A=3285 → 2975, B=4915 → 5225
[TX041] Transfer $487: B=5225 → 4738, A=2975 → 3462
[TX042] Transfer $121: B=4738 → 4617, A=3462 → 3583
[TX043] Transfer $758: A=3583 → 2825, B=4617 → 5375
[TX044] Transfer $484: B=5375 → 4891, A=2825 → 3309
[TX045] Transfer $601: A=3309 → 2708, B=4891 → 5492
[TX046] Transfer $303: A=2708 → 2405, B=5492 → 5795
[TX047] Transfer $343: B=5795 → 5452, A=2405 → 2748
[TX048] Transfer $647: A=2748 → 2101, B=5452 → 6099
[TX049] Transfer $870: B=6099 → 5229, A=2101 → 2969
[TX050] Transfer $501: B=5229 → 4728, A=2971 → 3472
[TX051] Transfer $527: B=4728 → 4201, A=3472 → 3999
[TX052] Transfer $733: B=4201 → 3468, A=3999 → 4732
[TX053] Transfer $434: A=4732 → 4298, B=3468 → 3902
[TX054] Transfer $276: B=3902 → 3626, A=4298 → 4574
[TX055] Transfer $121: B=3626 → 3505, A=4574 → 4695
[TX056] Transfer $461: B=3505 → 3044, A=4695 → 5156
[TX057] Transfer $167: B=3044 → 2877, A=5156 → 5323
[TX058] Transfer $482: B=2877 → 2395, A=5323 → 5805
[TX059] Transfer $239: B=2395 → 2156, A=5805 → 6044
[TX060] Transfer $945: A=6044 → 5099, B=2156 → 3101
[TX061] Transfer $906: B=3101 → 2195, A=5099 → 6005
[TX062] Transfer $984: B=2195 → 1211, A=6005 → 6989
[TX063] Transfer $817: B=1211 → 394, A=6989 → 7806
[TX064] Transfer $108: B=394 → 286, A=7806 → 7914
[TX065] Transfer $172: B=286 → 114, A=7914 → 8086
[TX066] Transfer $4: B=114 → 110, A=8086 → 8090
[TX067] Transfer $622: A=8090 → 7468, B=110 → 732
[TX068] Transfer $427: B=732 → 305, A=7468 → 7895
[TX069] Transfer $62: B=305 → 243, A=7895 → 7957
[TX070] Transfer $20: A=7957 → 7937, B=243 → 263
[TX071] Transfer $93: B=263 → 170, A=7937 → 8030
[TX072] Transfer $849: A=8030 → 7181, B=170 → 1019
[TX073] Transfer $347: A=7181 → 6834, B=1019 → 1366
[TX074] Transfer $634: B=1366 → 732, A=6834 → 7468
[TX075] Transfer $577: A=7468 → 6891, B=732 → 1309
[TX076] Transfer $266: A=6891 → 6625, B=1309 → 1575
[TX077] Transfer $789: B=1575 → 786, A=6625 → 7414
[TX078] Transfer $919: A=7414 → 6495, B=786 → 1705
[TX079] Transfer $725: A=6495 → 5770, B=1705 → 2430
[TX080] Transfer $820: A=5770 → 4950, B=2430 → 3250
[TX081] Transfer $1000: B=3250 → 2250, A=4950 → 5950
[TX082] Transfer $845: A=5950 → 5105, B=2250 → 3095
[TX083] Transfer $173: A=5105 → 4932, B=3095 → 3268
[TX084] Transfer $934: A=4932 → 3998, B=3268 → 4202
[TX085] Transfer $747: B=4202 → 3455, A=3998 → 4745
[TX086] Transfer $782: B=3455 → 2673, A=4745 → 5527
[TX087] Transfer $159: B=2673 → 2514, A=5527 → 5686
[TX088] Transfer $840: B=2514 → 1674, A=5686 → 6526
[TX089] Transfer $870: A=6526 → 5656, B=1674 → 2544
[TX090] Transfer $994: A=5656 → 4662, B=2544 → 3538
[TX091] Transfer $253: B=3538 → 3285, A=4662 → 4915
[TX092] Transfer $295: B=3285 → 2990, A=4915 → 5210
[TX093] Transfer $274: A=5210 → 4936, B=2990 → 3264
[TX094] Transfer $371: B=3264 → 2893, A=4936 → 5307
POSSIBLE BUG TYPES (choose exactly one):
- CALC_ERROR: Mathematical calculation is incorrect
- NEGATIVE_BAL: Account balance becomes negative
- LOST_UPDATE: Concurrent update causes lost transaction
- DUPLICATE_TXN: Same transaction processed multiple times
Identify the SINGLE bug if any exists.
Respond with ONLY a JSON object:
{"bug_type": "<type>", "bug_location": "<TX_ID>"
Your response:
|
CALC_ERROR
|
TX049
|
Mathematical calculation is incorrect
|
CALC_ERROR
| 94
|
{"bug_type": "CALC_ERROR", "bug_location": "TX049", "explanation": "Mathematical calculation is incorrect"}
|
{"bug_type": "CALC_ERROR", "n_ops": 94}
|
31
|
Analyze this banking transaction log for bugs.
Each operation shows the complete state change.
INITIAL STATE:
{
"account_A": 4000,
"account_B": 4200,
"total": 8200
}
RULES:
1. Total money must remain constant (conservation)
2. No account can go negative
3. All calculations must be mathematically correct
TRANSACTION LOG:
[TX001] Transfer $212: B=4200 → 3988, A=4000 → 4212
[TX002] Transfer $847: B=3988 → 3141, A=4212 → 5059
[TX003] Transfer $12: A=5059 → 5047, B=3141 → 3153
[TX004] Transfer $32: A=5047 → 5015, B=3153 → 3185
[TX005] Transfer $299: A=5015 → 4716, B=3185 → 3484
[TX006] Transfer $648: B=3484 → 2836, A=4716 → 5364
[TX007] Transfer $1000: B=2836 → 1836, A=5364 → 6364
[TX008] Transfer $204: A=6364 → 6160, B=1836 → 2040
[TX009] Transfer $226: B=2040 → 1814, A=6160 → 6386
[TX010] Transfer $349: B=1814 → 1465, A=6386 → 6735
[TX011] Transfer $202: A=6735 → 6533, B=1465 → 1667
[TX012] Transfer $865: A=6533 → 5668, B=1667 → 2532
[TX013] Transfer $23: B=2532 → 2509, A=5668 → 5691
[TX014] Transfer $672: A=5691 → 5019, B=2509 → 3181
[TX015] Transfer $960: A=5019 → 4059, B=3181 → 4141
[TX016] Transfer $469: A=4059 → 3590, B=4141 → 4610
[TX017] Transfer $830: A=3590 → 2760, B=4610 → 5440
[TX018] Transfer $965: B=5440 → 4475, A=2760 → 3725
[TX019] Transfer $123: B=4475 → 4352, A=3725 → 3848
[TX020] Transfer $815: A=3848 → 3033, B=4352 → 5167
[TX021] Transfer $547: A=3033 → 2486, B=5167 → 5714
[TX022] Transfer $327: B=5714 → 5387, A=2486 → 2813
[TX023] Transfer $945: B=5387 → 4442, A=2813 → 3758
[TX024] Transfer $876: A=3758 → 2882, B=4442 → 5318
[TX025] Transfer $337: B=5318 → 4981, A=2882 → 3219
[TX026] Transfer $646: A=3219 → 2573, B=4981 → 5627
[TX027] Transfer $873: B=5627 → 4754, A=2573 → 3446
[TX028] Transfer $746: B=4754 → 4008, A=3446 → 4192
[TX029] Transfer $811: A=4192 → 3381, B=4008 → 4819
[TX030] Transfer $522: A=3381 → 2859, B=4819 → 5341
[TX031] Transfer $512: B=5341 → 4829, A=2859 → 3371
[TX032] Transfer $331: B=4829 → 4498, A=3371 → 3702
[TX033] Transfer $734: B=4498 → 3764, A=3702 → 4436
[TX034] Transfer $276: B=3764 → 3488, A=4436 → 4712
[TX035] Transfer $214: B=3488 → 3274, A=4712 → 4926
[TX036] Transfer $464: A=4926 → 4462, B=3274 → 3738
[TX037] Transfer $225: A=4462 → 4237, B=3738 → 3963
[TX038] Transfer $912: B=3963 → 3051, A=4237 → 5149
[TX039] Transfer $959: B=3051 → 2092, A=5149 → 6108
[TX040] Transfer $565: B=2092 → 1527, A=6108 → 6673
[TX041] Transfer $771: A=6673 → 5902, B=1527 → 2298
[TX042] Transfer $457: A=5902 → 5445, B=2298 → 2755
[TX043] Transfer $599: B=2755 → 2156, A=5445 → 6044
[TX044] Transfer $526: A=6044 → 5518, B=2156 → 2682
[TX045] Transfer $463: B=2682 → 2219, A=5518 → 5981
[TX046] Transfer $420: B=2219 → 1799, A=5981 → 6401
[TX047] Transfer $326: B=1799 → 1473, A=6401 → 6727
[TX048] Transfer $27: B=1473 → 1446, A=6727 → 6754
[TX049] Transfer $241: A=6754 → 6513, B=1446 → 1687
[TX050] Transfer $369: B=1687 → 1318, A=6513 → 6882
[TX051] Transfer $864: A=6882 → 6018, B=1318 → 2182
[TX052] Transfer $950: A=6018 → 5068, B=2182 → 3132
[TX053] Transfer $123: A=5068 → 4945, B=3132 → 3255
[TX054] Transfer $41: A=4945 → 4904, B=3255 → 3296
[TX055] Transfer $203: A=4904 → 4701, B=3296 → 3499
[TX056] Transfer $311: B=3499 → 3188, A=4701 → 5012
[TX057] Transfer $724: B=3188 → 2464, A=5012 → 5736
[TX058] Transfer $10: A=5736 → 5726, B=2464 → 2474
[TX059] Transfer $844: B=2474 → 1630, A=5726 → 6570
[TX060] Transfer $970: B=1630 → 660, A=6570 → 7540
[TX061] Transfer $485: B=660 → 175, A=7540 → 8025
[TX062] Transfer $235: A=8025 → 7790, B=175 → 410
[TX063] Transfer $487: A=7790 → 7303, B=410 → 896
[TX064] Transfer $350: B=897 → 547, A=7303 → 7653
[TX065] Transfer $868: A=7653 → 6785, B=547 → 1415
[TX066] Transfer $790: A=6785 → 5995, B=1415 → 2205
[TX067] Transfer $451: B=2205 → 1754, A=5995 → 6446
[TX068] Transfer $385: B=1754 → 1369, A=6446 → 6831
[TX069] Transfer $314: A=6831 → 6517, B=1369 → 1683
[TX070] Transfer $831: A=6517 → 5686, B=1683 → 2514
[TX071] Transfer $232: B=2514 → 2282, A=5686 → 5918
[TX072] Transfer $704: B=2282 → 1578, A=5918 → 6622
[TX073] Transfer $335: B=1578 → 1243, A=6622 → 6957
[TX074] Transfer $946: A=6957 → 6011, B=1243 → 2189
[TX075] Transfer $977: A=6011 → 5034, B=2189 → 3166
[TX076] Transfer $392: B=3166 → 2774, A=5034 → 5426
[TX077] Transfer $67: A=5426 → 5359, B=2774 → 2841
[TX078] Transfer $488: B=2841 → 2353, A=5359 → 5847
[TX079] Transfer $585: A=5847 → 5262, B=2353 → 2938
[TX080] Transfer $97: B=2938 → 2841, A=5262 → 5359
[TX081] Transfer $693: A=5359 → 4666, B=2841 → 3534
[TX082] Transfer $848: A=4666 → 3818, B=3534 → 4382
[TX083] Transfer $193: B=4382 → 4189, A=3818 → 4011
[TX084] Transfer $935: A=4011 → 3076, B=4189 → 5124
[TX085] Transfer $212: B=5124 → 4912, A=3076 → 3288
[TX086] Transfer $677: A=3288 → 2611, B=4912 → 5589
[TX087] Transfer $60: A=2611 → 2551, B=5589 → 5649
[TX088] Transfer $177: B=5649 → 5472, A=2551 → 2728
[TX089] Transfer $402: B=5472 → 5070, A=2728 → 3130
[TX090] Transfer $134: A=3130 → 2996, B=5070 → 5204
[TX091] Transfer $762: B=5204 → 4442, A=2996 → 3758
[TX092] Transfer $980: A=3758 → 2778, B=4442 → 5422
[TX093] Transfer $893: A=2778 → 1885, B=5422 → 6315
[TX094] Transfer $444: A=1885 → 1441, B=6315 → 6759
[TX095] Transfer $620: B=6759 → 6139, A=1441 → 2061
[TX096] Transfer $516: B=6139 → 5623, A=2061 → 2577
[TX097] Transfer $208: B=5623 → 5415, A=2577 → 2785
[TX098] Transfer $458: A=2785 → 2327, B=5415 → 5873
[TX099] Transfer $621: A=2327 → 1706, B=5873 → 6494
[TX100] Transfer $934: A=1706 → 772, B=6494 → 7428
[TX101] Transfer $475: B=7428 → 6953, A=772 → 1247
[TX102] Transfer $296: A=1247 → 951, B=6953 → 7249
[TX103] Transfer $719: B=7249 → 6530, A=951 → 1670
[TX104] Transfer $629: B=6530 → 5901, A=1670 → 2299
[TX105] Transfer $257: A=2299 → 2042, B=5901 → 6158
POSSIBLE BUG TYPES (choose exactly one):
- CALC_ERROR: Mathematical calculation is incorrect
- NEGATIVE_BAL: Account balance becomes negative
- LOST_UPDATE: Concurrent update causes lost transaction
- DUPLICATE_TXN: Same transaction processed multiple times
Identify the SINGLE bug if any exists.
Respond with ONLY a JSON object:
{"bug_type": "<type>", "bug_location": "<TX_ID>"
Your response:
|
CALC_ERROR
|
TX063
|
Mathematical calculation is incorrect
|
CALC_ERROR
| 105
|
{"bug_type": "CALC_ERROR", "bug_location": "TX063", "explanation": "Mathematical calculation is incorrect"}
|
{"bug_type": "CALC_ERROR", "n_ops": 105}
|
35
|
Analyze this banking transaction log for bugs.
Each operation shows the complete state change.
INITIAL STATE:
{
"account_A": 4000,
"account_B": 4200,
"total": 8200
}
RULES:
1. Total money must remain constant (conservation)
2. No account can go negative
3. All calculations must be mathematically correct
TRANSACTION LOG:
[TX001] Transfer $977: B=4200 → 3223, A=4000 → 4977
[TX002] Transfer $314: B=3223 → 2909, A=4977 → 5291
[TX003] Transfer $418: A=5291 → 4873, B=2909 → 3327
[TX004] Transfer $651: B=3327 → 2676, A=4873 → 5524
[TX005] Transfer $749: A=5524 → 4775, B=2676 → 3425
[TX006] Transfer $171: A=4775 → 4604, B=3425 → 3596
[TX007] Transfer $763: A=4604 → 3841, B=3596 → 4359
[TX008] Transfer $829: B=4359 → 3530, A=3841 → 4670
[TX009] Transfer $695: A=4670 → 3975, B=3530 → 4225
[TX010] Transfer $511: A=3975 → 3464, B=4225 → 4736
[TX011] Transfer $16: A=3464 → 3448, B=4736 → 4752
[TX012] Transfer $733: A=3448 → 2715, B=4752 → 5485
[TX013] Transfer $252: B=5485 → 5233, A=2715 → 2967
[TX014] Transfer $989: A=2967 → 1978, B=5233 → 6222
[TX015] Transfer $181: A=1978 → 1797, B=6222 → 6403
[TX016] Transfer $861: A=1797 → 936, B=6403 → 7264
[TX017] Transfer $54: A=936 → 882, B=7264 → 7318
[TX018] Transfer $390: B=7318 → 6928, A=882 → 1272
[TX019] Transfer $995: A=1272 → 277, B=6928 → 7923
[TX020] Transfer $175: A=277 → 102, B=7923 → 8098
[TX021] Transfer $2: A=102 → 100, B=8098 → 8100
[TX022] Transfer $302: B=8100 → 7798, A=100 → 402
[TX023] Transfer $4: B=7798 → 7794, A=402 → 406
[TX024] Transfer $947: B=7794 → 6847, A=406 → 1353
[TX025] Transfer $959: B=6847 → 5888, A=1353 → 2312
[TX026] Transfer $60: B=5888 → 5828, A=2312 → 2372
[TX027] Transfer $632: B=5828 → 5196, A=2372 → 3004
[TX028] Transfer $307: B=5196 → 4889, A=3004 → 3311
[TX029] Transfer $7: B=4889 → 4882, A=3311 → 3318
[TX030] Transfer $413: B=4882 → 4469, A=3318 → 3731
[TX031] Transfer $105: B=4469 → 4364, A=3731 → 3836
[TX032] Transfer $204: B=4364 → 4160, A=3836 → 4040
[TX033] Transfer $422: A=4040 → 3618, B=4160 → 4582
[TX034] Transfer $9: A=3618 → 3609, B=4582 → 4591
[TX035] Transfer $233: A=3609 → 3376, B=4591 → 4824
[TX036] Transfer $385: B=4824 → 4439, A=3376 → 3761
[TX037] Transfer $440: B=4439 → 3999, A=3761 → 4201
[TX038] Transfer $113: A=4201 → 4088, B=3999 → 4112
[TX039] Transfer $167: B=4112 → 3945, A=4088 → 4255
[TX040] Transfer $767: A=4255 → 3488, B=3945 → 4712
[TX041] Transfer $369: B=4712 → 4343, A=3488 → 3857
[TX042] Transfer $196: A=3857 → 3661, B=4343 → 4539
[TX043] Transfer $138: B=4539 → 4401, A=3661 → 3799
[TX044] Transfer $763: B=4401 → 3638, A=3799 → 4562
[TX045] Transfer $166: B=3638 → 3472, A=4562 → 4728
[TX046] Transfer $984: A=4728 → 3744, B=3472 → 4456
[TX047] Transfer $433: B=4456 → 4023, A=3744 → 4177
[TX048] Transfer $821: B=4023 → 3202, A=4177 → 4998
[TX049] Transfer $771: A=4998 → 4227, B=3202 → 3973
[TX050] Transfer $136: B=3973 → 3837, A=4227 → 4363
[TX051] Transfer $813: A=4363 → 3550, B=3837 → 4650
[TX052] Payment PAY1009: Transfer $161: A=3550 → 3389, B=4650 → 4811
[TX053] Transfer $787: B=4811 → 4024, A=3389 → 4176
[TX054] Transfer $696: A=4176 → 3480, B=4024 → 4720
[TX055] Transfer $613: B=4720 → 4107, A=3480 → 4093
[TX056] Transfer $493: A=4093 → 3600, B=4107 → 4600
[TX057] Transfer $499: B=4600 → 4101, A=3600 → 4099
[TX058] Transfer $255: A=4099 → 3844, B=4101 → 4356
[TX059] Transfer $257: A=3844 → 3587, B=4356 → 4613
[TX060] Transfer $886: B=4613 → 3727, A=3587 → 4473
[TX061] Transfer $684: B=3727 → 3043, A=4473 → 5157
[TX062] Transfer $487: B=3043 → 2556, A=5157 → 5644
[TX063] Transfer $195: A=5644 → 5449, B=2556 → 2751
[TX064] Transfer $125: A=5449 → 5324, B=2751 → 2876
[TX065] Transfer $41: A=5324 → 5283, B=2876 → 2917
[TX066] Transfer $953: B=2917 → 1964, A=5283 → 6236
[TX067] Transfer $20: A=6236 → 6216, B=1964 → 1984
[TX068] Transfer $887: A=6216 → 5329, B=1984 → 2871
[TX069] Transfer $419: A=5329 → 4910, B=2871 → 3290
[TX070] Transfer $229: B=3290 → 3061, A=4910 → 5139
[TX071] Transfer $492: B=3061 → 2569, A=5139 → 5631
[TX072] Transfer $661: A=5631 → 4970, B=2569 → 3230
[TX073] Transfer $114: A=4970 → 4856, B=3230 → 3344
[TX074] Transfer $289: B=3344 → 3055, A=4856 → 5145
[TX075] Transfer $254: B=3055 → 2801, A=5145 → 5399
[TX076] Transfer $188: B=2801 → 2613, A=5399 → 5587
[TX077] Transfer $55: A=5587 → 5532, B=2613 → 2668
[TX078] Transfer $294: B=2668 → 2374, A=5532 → 5826
[TX079] Transfer $932: B=2374 → 1442, A=5826 → 6758
[TX080] Transfer $191: A=6758 → 6567, B=1442 → 1633
[TX081] Transfer $374: B=1633 → 1259, A=6567 → 6941
[TX082] Payment PAY1009: Transfer $161: A=6941 → 6780, B=1259 → 1420
[TX083] Transfer $116: B=1420 → 1304, A=6780 → 6896
[TX084] Transfer $701: A=6896 → 6195, B=1304 → 2005
[TX085] Transfer $371: A=6195 → 5824, B=2005 → 2376
[TX086] Transfer $245: B=2376 → 2131, A=5824 → 6069
[TX087] Transfer $600: B=2131 → 1531, A=6069 → 6669
[TX088] Transfer $910: B=1531 → 621, A=6669 → 7579
[TX089] Transfer $646: A=7579 → 6933, B=621 → 1267
[TX090] Transfer $602: A=6933 → 6331, B=1267 → 1869
[TX091] Transfer $723: A=6331 → 5608, B=1869 → 2592
[TX092] Transfer $78: B=2592 → 2514, A=5608 → 5686
[TX093] Transfer $744: B=2514 → 1770, A=5686 → 6430
[TX094] Transfer $548: B=1770 → 1222, A=6430 → 6978
[TX095] Transfer $132: A=6978 → 6846, B=1222 → 1354
[TX096] Transfer $565: A=6846 → 6281, B=1354 → 1919
[TX097] Transfer $918: B=1919 → 1001, A=6281 → 7199
[TX098] Transfer $646: B=1001 → 355, A=7199 → 7845
[TX099] Transfer $71: A=7845 → 7774, B=355 → 426
[TX100] Transfer $270: B=426 → 156, A=7774 → 8044
[TX101] Transfer $615: A=8044 → 7429, B=156 → 771
[TX102] Transfer $298: B=771 → 473, A=7429 → 7727
[TX103] Transfer $815: A=7727 → 6912, B=473 → 1288
[TX104] Transfer $508: A=6912 → 6404, B=1288 → 1796
[TX105] Transfer $450: A=6404 → 5954, B=1796 → 2246
[TX106] Transfer $412: B=2246 → 1834, A=5954 → 6366
[TX107] Transfer $190: B=1834 → 1644, A=6366 → 6556
[TX108] Transfer $587: A=6556 → 5969, B=1644 → 2231
POSSIBLE BUG TYPES (choose exactly one):
- CALC_ERROR: Mathematical calculation is incorrect
- NEGATIVE_BAL: Account balance becomes negative
- LOST_UPDATE: Concurrent update causes lost transaction
- DUPLICATE_TXN: Same transaction processed multiple times
Identify the SINGLE bug if any exists.
Respond with ONLY a JSON object:
{"bug_type": "<type>", "bug_location": "<TX_ID>"
Your response:
|
DUPLICATE_TXN
|
TX082
|
Payment PAY1009 processed twice
|
DUPLICATE_TXN
| 108
|
{"bug_type": "DUPLICATE_TXN", "bug_location": "TX082", "explanation": "Payment PAY1009 processed twice"}
|
{"bug_type": "DUPLICATE_TXN", "n_ops": 108}
|
94
|
Analyze this banking transaction log for bugs.
Each operation shows the complete state change.
INITIAL STATE:
{
"account_A": 4000,
"account_B": 4200,
"total": 8200
}
RULES:
1. Total money must remain constant (conservation)
2. No account can go negative
3. All calculations must be mathematically correct
TRANSACTION LOG:
[TX001] Transfer $606: B=4200 → 3594, A=4000 → 4606
[TX002] Transfer $393: A=4606 → 4213, B=3594 → 3987
[TX003] Transfer $881: A=4213 → 3332, B=3987 → 4868
[TX004] Transfer $228: A=3332 → 3104, B=4868 → 5096
[TX005] Transfer $771: A=3104 → 2333, B=5096 → 5867
[TX006] Transfer $126: A=2333 → 2207, B=5867 → 5993
[TX007] Transfer $514: A=2207 → 1693, B=5993 → 6507
[TX008] Transfer $546: A=1693 → 1147, B=6507 → 7053
[TX009] Transfer $191: B=7053 → 6862, A=1147 → 1338
[TX010] Transfer $430: A=1338 → 908, B=6862 → 7292
[TX011] Transfer $110: A=908 → 798, B=7292 → 7402
[TX012] Payment PAY1028: Transfer $110: A=798 → 688, B=7402 → 7512
[TX013] Transfer $503: B=7512 → 7009, A=688 → 1191
[TX014] Transfer $620: B=7009 → 6389, A=1191 → 1811
[TX015] Transfer $61: A=1811 → 1750, B=6389 → 6450
[TX016] Transfer $727: A=1750 → 1023, B=6450 → 7177
[TX017] Transfer $103: B=7177 → 7074, A=1023 → 1126
[TX018] Transfer $190: B=7074 → 6884, A=1126 → 1316
[TX019] Transfer $734: B=6884 → 6150, A=1316 → 2050
[TX020] Transfer $67: B=6150 → 6083, A=2050 → 2117
[TX021] Transfer $995: B=6083 → 5088, A=2117 → 3112
[TX022] Transfer $746: B=5088 → 4342, A=3112 → 3858
[TX023] Transfer $234: B=4342 → 4108, A=3858 → 4092
[TX024] Transfer $814: A=4092 → 3278, B=4108 → 4922
[TX025] Transfer $141: B=4922 → 4781, A=3278 → 3419
[TX026] Transfer $987: A=3419 → 2432, B=4781 → 5768
[TX027] Transfer $478: B=5768 → 5290, A=2432 → 2910
[TX028] Payment PAY1028: Transfer $110: A=2910 → 2800, B=5290 → 5400
[TX029] Transfer $341: A=2800 → 2459, B=5400 → 5741
[TX030] Transfer $453: B=5741 → 5288, A=2459 → 2912
[TX031] Transfer $456: B=5288 → 4832, A=2912 → 3368
[TX032] Transfer $631: A=3368 → 2737, B=4832 → 5463
[TX033] Transfer $202: B=5463 → 5261, A=2737 → 2939
[TX034] Transfer $688: A=2939 → 2251, B=5261 → 5949
[TX035] Transfer $440: B=5949 → 5509, A=2251 → 2691
[TX036] Transfer $350: B=5509 → 5159, A=2691 → 3041
[TX037] Transfer $183: A=3041 → 2858, B=5159 → 5342
[TX038] Transfer $70: B=5342 → 5272, A=2858 → 2928
[TX039] Transfer $804: A=2928 → 2124, B=5272 → 6076
[TX040] Transfer $843: A=2124 → 1281, B=6076 → 6919
[TX041] Transfer $562: B=6919 → 6357, A=1281 → 1843
[TX042] Transfer $680: A=1843 → 1163, B=6357 → 7037
[TX043] Transfer $161: A=1163 → 1002, B=7037 → 7198
[TX044] Transfer $72: A=1002 → 930, B=7198 → 7270
[TX045] Transfer $491: A=930 → 439, B=7270 → 7761
[TX046] Transfer $397: B=7761 → 7364, A=439 → 836
[TX047] Transfer $211: B=7364 → 7153, A=836 → 1047
[TX048] Transfer $140: B=7153 → 7013, A=1047 → 1187
[TX049] Transfer $702: A=1187 → 485, B=7013 → 7715
[TX050] Transfer $554: B=7715 → 7161, A=485 → 1039
[TX051] Transfer $75: B=7161 → 7086, A=1039 → 1114
[TX052] Transfer $840: A=1114 → 274, B=7086 → 7926
[TX053] Transfer $426: B=7926 → 7500, A=274 → 700
[TX054] Transfer $87: A=700 → 613, B=7500 → 7587
[TX055] Transfer $157: A=613 → 456, B=7587 → 7744
[TX056] Transfer $24: B=7744 → 7720, A=456 → 480
[TX057] Transfer $127: A=480 → 353, B=7720 → 7847
[TX058] Transfer $793: B=7847 → 7054, A=353 → 1146
[TX059] Transfer $896: A=1146 → 250, B=7054 → 7950
[TX060] Transfer $55: A=250 → 195, B=7950 → 8005
[TX061] Transfer $57: A=195 → 138, B=8005 → 8062
[TX062] Transfer $391: B=8062 → 7671, A=138 → 529
[TX063] Transfer $247: A=529 → 282, B=7671 → 7918
[TX064] Transfer $504: B=7918 → 7414, A=282 → 786
[TX065] Transfer $424: A=786 → 362, B=7414 → 7838
[TX066] Transfer $905: B=7838 → 6933, A=362 → 1267
[TX067] Transfer $943: B=6933 → 5990, A=1267 → 2210
[TX068] Transfer $98: A=2210 → 2112, B=5990 → 6088
[TX069] Transfer $685: A=2112 → 1427, B=6088 → 6773
[TX070] Transfer $825: A=1427 → 602, B=6773 → 7598
[TX071] Transfer $719: B=7598 → 6879, A=602 → 1321
[TX072] Transfer $301: B=6879 → 6578, A=1321 → 1622
[TX073] Transfer $457: A=1622 → 1165, B=6578 → 7035
[TX074] Transfer $67: A=1165 → 1098, B=7035 → 7102
[TX075] Transfer $189: A=1098 → 909, B=7102 → 7291
[TX076] Transfer $967: B=7291 → 6324, A=909 → 1876
[TX077] Transfer $987: B=6324 → 5337, A=1876 → 2863
[TX078] Transfer $974: A=2863 → 1889, B=5337 → 6311
[TX079] Transfer $323: B=6311 → 5988, A=1889 → 2212
[TX080] Transfer $422: B=5988 → 5566, A=2212 → 2634
[TX081] Transfer $525: B=5566 → 5041, A=2634 → 3159
[TX082] Transfer $165: B=5041 → 4876, A=3159 → 3324
[TX083] Transfer $835: A=3324 → 2489, B=4876 → 5711
[TX084] Transfer $852: B=5711 → 4859, A=2489 → 3341
[TX085] Transfer $316: A=3341 → 3025, B=4859 → 5175
[TX086] Transfer $324: B=5175 → 4851, A=3025 → 3349
[TX087] Transfer $594: A=3349 → 2755, B=4851 → 5445
[TX088] Transfer $336: A=2755 → 2419, B=5445 → 5781
[TX089] Transfer $881: B=5781 → 4900, A=2419 → 3300
[TX090] Transfer $840: A=3300 → 2460, B=4900 → 5740
[TX091] Transfer $786: A=2460 → 1674, B=5740 → 6526
[TX092] Transfer $898: A=1674 → 776, B=6526 → 7424
[TX093] Transfer $185: B=7424 → 7239, A=776 → 961
[TX094] Transfer $721: A=961 → 240, B=7239 → 7960
[TX095] Transfer $57: A=240 → 183, B=7960 → 8017
[TX096] Transfer $889: B=8017 → 7128, A=183 → 1072
[TX097] Transfer $136: A=1072 → 936, B=7128 → 7264
[TX098] Transfer $449: A=936 → 487, B=7264 → 7713
[TX099] Transfer $192: B=7713 → 7521, A=487 → 679
[TX100] Transfer $301: A=679 → 378, B=7521 → 7822
[TX101] Transfer $565: B=7822 → 7257, A=378 → 943
POSSIBLE BUG TYPES (choose exactly one):
- CALC_ERROR: Mathematical calculation is incorrect
- NEGATIVE_BAL: Account balance becomes negative
- LOST_UPDATE: Concurrent update causes lost transaction
- DUPLICATE_TXN: Same transaction processed multiple times
Identify the SINGLE bug if any exists.
Respond with ONLY a JSON object:
{"bug_type": "<type>", "bug_location": "<TX_ID>"
Your response:
|
DUPLICATE_TXN
|
TX028
|
Payment PAY1028 processed twice
|
DUPLICATE_TXN
| 101
|
{"bug_type": "DUPLICATE_TXN", "bug_location": "TX028", "explanation": "Payment PAY1028 processed twice"}
|
{"bug_type": "DUPLICATE_TXN", "n_ops": 101}
|
3
|
Analyze this banking transaction log for bugs.
Each operation shows the complete state change.
INITIAL STATE:
{
"account_A": 4000,
"account_B": 4200,
"total": 8200
}
RULES:
1. Total money must remain constant (conservation)
2. No account can go negative
3. All calculations must be mathematically correct
TRANSACTION LOG:
[TX001] Transfer $611: A=4000 → 3389, B=4200 → 4811
[TX002] Transfer $129: B=4811 → 4682, A=3389 → 3518
[TX003] Transfer $718: B=4682 → 3964, A=3518 → 4236
[TX004] Transfer $514: B=3964 → 3450, A=4236 → 4750
[TX005] Payment PAY1000: Transfer $84: B=3450 → 3366, A=4750 → 4834
[TX006] Transfer $754: A=4834 → 4080, B=3366 → 4120
[TX007] Transfer $28: B=4120 → 4092, A=4080 → 4108
[TX008] Transfer $986: A=4108 → 3122, B=4092 → 5078
[TX009] Transfer $592: A=3122 → 2530, B=5078 → 5670
[TX010] Transfer $483: A=2530 → 2047, B=5670 → 6153
[TX011] Transfer $187: B=6153 → 5966, A=2047 → 2234
[TX012] Transfer $994: B=5966 → 4972, A=2234 → 3228
[TX013] Payment PAY1000: Transfer $84: B=4972 → 4888, A=3228 → 3312
[TX014] Transfer $358: A=3312 → 2954, B=4888 → 5246
[TX015] Transfer $330: B=5246 → 4916, A=2954 → 3284
[TX016] Transfer $339: A=3284 → 2945, B=4916 → 5255
[TX017] Transfer $297: B=5255 → 4958, A=2945 → 3242
[TX018] Transfer $467: B=4958 → 4491, A=3242 → 3709
[TX019] Transfer $260: A=3709 → 3449, B=4491 → 4751
[TX020] Transfer $995: B=4751 → 3756, A=3449 → 4444
[TX021] Transfer $675: B=3756 → 3081, A=4444 → 5119
[TX022] Transfer $57: B=3081 → 3024, A=5119 → 5176
[TX023] Transfer $639: A=5176 → 4537, B=3024 → 3663
[TX024] Transfer $780: B=3663 → 2883, A=4537 → 5317
[TX025] Transfer $275: A=5317 → 5042, B=2883 → 3158
[TX026] Transfer $450: A=5042 → 4592, B=3158 → 3608
[TX027] Transfer $31: B=3608 → 3577, A=4592 → 4623
[TX028] Transfer $320: A=4623 → 4303, B=3577 → 3897
[TX029] Transfer $97: A=4303 → 4206, B=3897 → 3994
[TX030] Transfer $474: A=4206 → 3732, B=3994 → 4468
[TX031] Transfer $512: A=3732 → 3220, B=4468 → 4980
[TX032] Transfer $427: B=4980 → 4553, A=3220 → 3647
[TX033] Transfer $251: B=4553 → 4302, A=3647 → 3898
[TX034] Transfer $394: B=4302 → 3908, A=3898 → 4292
[TX035] Transfer $886: A=4292 → 3406, B=3908 → 4794
[TX036] Transfer $793: A=3406 → 2613, B=4794 → 5587
[TX037] Transfer $958: B=5587 → 4629, A=2613 → 3571
[TX038] Transfer $291: B=4629 → 4338, A=3571 → 3862
[TX039] Transfer $888: B=4338 → 3450, A=3862 → 4750
[TX040] Transfer $553: A=4750 → 4197, B=3450 → 4003
[TX041] Transfer $342: B=4003 → 3661, A=4197 → 4539
[TX042] Transfer $957: B=3661 → 2704, A=4539 → 5496
[TX043] Transfer $716: B=2704 → 1988, A=5496 → 6212
[TX044] Transfer $241: A=6212 → 5971, B=1988 → 2229
[TX045] Transfer $327: B=2229 → 1902, A=5971 → 6298
[TX046] Transfer $397: B=1902 → 1505, A=6298 → 6695
[TX047] Transfer $989: A=6695 → 5706, B=1505 → 2494
[TX048] Transfer $516: A=5706 → 5190, B=2494 → 3010
[TX049] Transfer $897: B=3010 → 2113, A=5190 → 6087
[TX050] Transfer $540: B=2113 → 1573, A=6087 → 6627
[TX051] Transfer $741: B=1573 → 832, A=6627 → 7368
[TX052] Transfer $893: A=7368 → 6475, B=832 → 1725
[TX053] Transfer $482: A=6475 → 5993, B=1725 → 2207
[TX054] Transfer $640: B=2207 → 1567, A=5993 → 6633
[TX055] Transfer $874: B=1567 → 693, A=6633 → 7507
[TX056] Transfer $326: B=693 → 367, A=7507 → 7833
[TX057] Transfer $37: B=367 → 330, A=7833 → 7870
[TX058] Transfer $234: A=7870 → 7636, B=330 → 564
[TX059] Transfer $102: A=7636 → 7534, B=564 → 666
[TX060] Transfer $172: A=7534 → 7362, B=666 → 838
[TX061] Transfer $49: B=838 → 789, A=7362 → 7411
[TX062] Transfer $302: B=789 → 487, A=7411 → 7713
[TX063] Transfer $222: B=487 → 265, A=7713 → 7935
[TX064] Transfer $545: A=7935 → 7390, B=265 → 810
[TX065] Transfer $176: B=810 → 634, A=7390 → 7566
[TX066] Transfer $626: A=7566 → 6940, B=634 → 1260
[TX067] Transfer $511: B=1260 → 749, A=6940 → 7451
[TX068] Transfer $474: A=7451 → 6977, B=749 → 1223
[TX069] Transfer $263: B=1223 → 960, A=6977 → 7240
[TX070] Transfer $924: A=7240 → 6316, B=960 → 1884
[TX071] Transfer $77: B=1884 → 1807, A=6316 → 6393
[TX072] Transfer $603: B=1807 → 1204, A=6393 → 6996
[TX073] Transfer $708: B=1204 → 496, A=6996 → 7704
[TX074] Transfer $156: B=496 → 340, A=7704 → 7860
[TX075] Transfer $875: A=7860 → 6985, B=340 → 1215
[TX076] Transfer $244: B=1215 → 971, A=6985 → 7229
[TX077] Transfer $590: B=971 → 381, A=7229 → 7819
[TX078] Transfer $13: B=381 → 368, A=7819 → 7832
[TX079] Transfer $6: B=368 → 362, A=7832 → 7838
[TX080] Transfer $854: A=7838 → 6984, B=362 → 1216
[TX081] Transfer $623: B=1216 → 593, A=6984 → 7607
[TX082] Transfer $327: B=593 → 266, A=7607 → 7934
[TX083] Transfer $696: A=7934 → 7238, B=266 → 962
[TX084] Transfer $927: A=7238 → 6311, B=962 → 1889
[TX085] Transfer $809: A=6311 → 5502, B=1889 → 2698
[TX086] Transfer $595: B=2698 → 2103, A=5502 → 6097
[TX087] Transfer $94: B=2103 → 2009, A=6097 → 6191
[TX088] Transfer $767: B=2009 → 1242, A=6191 → 6958
[TX089] Transfer $207: B=1242 → 1035, A=6958 → 7165
[TX090] Transfer $545: A=7165 → 6620, B=1035 → 1580
[TX091] Transfer $265: B=1580 → 1315, A=6620 → 6885
POSSIBLE BUG TYPES (choose exactly one):
- CALC_ERROR: Mathematical calculation is incorrect
- NEGATIVE_BAL: Account balance becomes negative
- LOST_UPDATE: Concurrent update causes lost transaction
- DUPLICATE_TXN: Same transaction processed multiple times
Identify the SINGLE bug if any exists.
Respond with ONLY a JSON object:
{"bug_type": "<type>", "bug_location": "<TX_ID>"
Your response:
|
DUPLICATE_TXN
|
TX013
|
Payment PAY1000 processed twice
|
DUPLICATE_TXN
| 91
|
{"bug_type": "DUPLICATE_TXN", "bug_location": "TX013", "explanation": "Payment PAY1000 processed twice"}
|
{"bug_type": "DUPLICATE_TXN", "n_ops": 91}
|
14
|
Analyze this banking transaction log for bugs.
Each operation shows the complete state change.
INITIAL STATE:
{
"account_A": 4000,
"account_B": 4200,
"total": 8200
}
RULES:
1. Total money must remain constant (conservation)
2. No account can go negative
3. All calculations must be mathematically correct
TRANSACTION LOG:
[TX001] Transfer $910: B=4200 → 3290, A=4000 → 4910
[TX002] Transfer $49: B=3290 → 3241, A=4910 → 4959
[TX003] Transfer $672: A=4959 → 4287, B=3241 → 3913
[TX004] Transfer $723: B=3913 → 3190, A=4287 → 5010
[TX005] Transfer $533: A=5010 → 4477, B=3190 → 3723
[TX006] Transfer $679: A=4477 → 3798, B=3723 → 4402
[TX007] Transfer $356: A=3798 → 3442, B=4402 → 4758
[TX008] Transfer $861: B=4758 → 3897, A=3442 → 4303
[TX009] Payment PAY1004: Transfer $660: A=4303 → 3643, B=3897 → 4557
[TX010] Transfer $874: A=3643 → 2769, B=4557 → 5431
[TX011] Transfer $78: B=5431 → 5353, A=2769 → 2847
[TX012] Transfer $248: B=5353 → 5105, A=2847 → 3095
[TX013] Transfer $53: B=5105 → 5052, A=3095 → 3148
[TX014] Transfer $414: A=3148 → 2734, B=5052 → 5466
[TX015] Transfer $472: A=2734 → 2262, B=5466 → 5938
[TX016] Transfer $92: B=5938 → 5846, A=2262 → 2354
[TX017] Transfer $325: B=5846 → 5521, A=2354 → 2679
[TX018] Transfer $765: A=2679 → 1914, B=5521 → 6286
[TX019] Transfer $415: A=1914 → 1499, B=6286 → 6701
[TX020] Transfer $572: B=6701 → 6129, A=1499 → 2071
[TX021] Transfer $812: A=2071 → 1259, B=6129 → 6941
[TX022] Transfer $672: B=6941 → 6269, A=1259 → 1931
[TX023] Transfer $374: B=6269 → 5895, A=1931 → 2305
[TX024] Transfer $866: A=2305 → 1439, B=5895 → 6761
[TX025] Transfer $575: B=6761 → 6186, A=1439 → 2014
[TX026] Transfer $735: B=6186 → 5451, A=2014 → 2749
[TX027] Transfer $101: B=5451 → 5350, A=2749 → 2850
[TX028] Transfer $351: A=2850 → 2499, B=5350 → 5701
[TX029] Transfer $562: B=5701 → 5139, A=2499 → 3061
[TX030] Transfer $48: B=5139 → 5091, A=3061 → 3109
[TX031] Transfer $145: A=3109 → 2964, B=5091 → 5236
[TX032] Transfer $262: B=5236 → 4974, A=2964 → 3226
[TX033] Transfer $125: A=3226 → 3101, B=4974 → 5099
[TX034] Transfer $470: B=5099 → 4629, A=3101 → 3571
[TX035] Transfer $112: A=3571 → 3459, B=4629 → 4741
[TX036] Transfer $950: B=4741 → 3791, A=3459 → 4409
[TX037] Transfer $470: A=4409 → 3939, B=3791 → 4261
[TX038] Transfer $6: A=3939 → 3933, B=4261 → 4267
[TX039] Transfer $860: A=3933 → 3073, B=4267 → 5127
[TX040] Transfer $710: B=5127 → 4417, A=3073 → 3783
[TX041] Transfer $108: A=3783 → 3675, B=4417 → 4525
[TX042] Transfer $518: B=4525 → 4007, A=3675 → 4193
[TX043] Transfer $625: B=4007 → 3382, A=4193 → 4818
[TX044] Transfer $409: A=4818 → 4409, B=3382 → 3791
[TX045] Transfer $465: B=3791 → 3326, A=4409 → 4874
[TX046] Transfer $424: A=4874 → 4450, B=3326 → 3750
[TX047] Transfer $730: B=3750 → 3020, A=4450 → 5180
[TX048] Transfer $216: A=5180 → 4964, B=3020 → 3236
[TX049] Transfer $945: B=3236 → 2291, A=4964 → 5909
[TX050] Transfer $517: A=5909 → 5392, B=2291 → 2808
[TX051] Transfer $781: B=2808 → 2027, A=5392 → 6173
[TX052] Transfer $598: B=2027 → 1429, A=6173 → 6771
[TX053] Transfer $900: B=1429 → 529, A=6771 → 7671
[TX054] Transfer $269: B=529 → 260, A=7671 → 7940
[TX055] Transfer $392: A=7940 → 7548, B=260 → 652
[TX056] Transfer $688: A=7548 → 6860, B=652 → 1340
[TX057] Transfer $275: A=6860 → 6585, B=1340 → 1615
[TX058] Transfer $701: A=6585 → 5884, B=1615 → 2316
[TX059] Transfer $861: B=2316 → 1455, A=5884 → 6745
[TX060] Transfer $210: A=6745 → 6535, B=1455 → 1665
[TX061] Transfer $835: A=6535 → 5700, B=1665 → 2500
[TX062] Transfer $632: B=2500 → 1868, A=5700 → 6332
[TX063] Transfer $245: A=6332 → 6087, B=1868 → 2113
[TX064] Transfer $950: B=2113 → 1163, A=6087 → 7037
[TX065] Transfer $428: B=1163 → 735, A=7037 → 7465
[TX066] Transfer $15: B=735 → 720, A=7465 → 7480
[TX067] Transfer $455: B=720 → 265, A=7480 → 7935
[TX068] Transfer $775: A=7935 → 7160, B=265 → 1040
[TX069] Transfer $303: A=7160 → 6857, B=1040 → 1343
[TX070] Transfer $701: B=1343 → 642, A=6857 → 7558
[TX071] Payment PAY1004: Transfer $660: A=7558 → 6898, B=642 → 1302
[TX072] Transfer $987: A=6898 → 5911, B=1302 → 2289
[TX073] Transfer $388: A=5911 → 5523, B=2289 → 2677
[TX074] Transfer $287: A=5523 → 5236, B=2677 → 2964
[TX075] Transfer $166: B=2964 → 2798, A=5236 → 5402
[TX076] Transfer $340: B=2798 → 2458, A=5402 → 5742
[TX077] Transfer $42: B=2458 → 2416, A=5742 → 5784
[TX078] Transfer $613: A=5784 → 5171, B=2416 → 3029
[TX079] Transfer $504: A=5171 → 4667, B=3029 → 3533
[TX080] Transfer $804: B=3533 → 2729, A=4667 → 5471
[TX081] Transfer $981: B=2729 → 1748, A=5471 → 6452
[TX082] Transfer $807: A=6452 → 5645, B=1748 → 2555
[TX083] Transfer $558: A=5645 → 5087, B=2555 → 3113
[TX084] Transfer $359: B=3113 → 2754, A=5087 → 5446
POSSIBLE BUG TYPES (choose exactly one):
- CALC_ERROR: Mathematical calculation is incorrect
- NEGATIVE_BAL: Account balance becomes negative
- LOST_UPDATE: Concurrent update causes lost transaction
- DUPLICATE_TXN: Same transaction processed multiple times
Identify the SINGLE bug if any exists.
Respond with ONLY a JSON object:
{"bug_type": "<type>", "bug_location": "<TX_ID>"
Your response:
|
DUPLICATE_TXN
|
TX071
|
Payment PAY1004 processed twice
|
DUPLICATE_TXN
| 84
|
{"bug_type": "DUPLICATE_TXN", "bug_location": "TX071", "explanation": "Payment PAY1004 processed twice"}
|
{"bug_type": "DUPLICATE_TXN", "n_ops": 84}
|
81
|
Analyze this banking transaction log for bugs.
Each operation shows the complete state change.
INITIAL STATE:
{
"account_A": 4000,
"account_B": 4200,
"total": 8200
}
RULES:
1. Total money must remain constant (conservation)
2. No account can go negative
3. All calculations must be mathematically correct
TRANSACTION LOG:
[TX001] Transfer $254: B=4200 → 3946, A=4000 → 4254
[TX002] Transfer $764: B=3946 → 3182, A=4254 → 5018
[TX003] Transfer $561: A=5018 → 4457, B=3182 → 3743
[TX004] Transfer $931: A=4457 → 3526, B=3743 → 4674
[TX005] Transfer $828: B=4674 → 3846, A=3526 → 4354
[TX006] Transfer $241: A=4354 → 4113, B=3846 → 4087
[TX007] Transfer $520: B=4087 → 3567, A=4113 → 4633
[TX008] Transfer $372: A=4633 → 4261, B=3567 → 3939
[TX009] Transfer $387: B=3939 → 3552, A=4261 → 4648
[TX010] Transfer $166: A=4648 → 4482, B=3552 → 3718
[TX011] Transfer $21: A=4482 → 4461, B=3718 → 3739
[TX012] Transfer $807: A=4461 → 3654, B=3739 → 4546
[TX013] Transfer $778: B=4546 → 3768, A=3654 → 4432
[TX014] Transfer $434: B=3768 → 3334, A=4432 → 4866
[TX015] Transfer $146: B=3334 → 3188, A=4866 → 5012
[TX016] Transfer $68: A=5012 → 4944, B=3188 → 3256
[TX017] Transfer $29: B=3256 → 3227, A=4944 → 4973
[TX018] Transfer $64: B=3227 → 3163, A=4973 → 5037
[TX019] Transfer $372: B=3163 → 2791, A=5037 → 5409
[TX020] Transfer $774: B=2791 → 2017, A=5409 → 6183
[TX021] Transfer $494: B=2017 → 1523, A=6183 → 6677
[TX022] Transfer $102: A=6677 → 6575, B=1523 → 1625
[TX023] Transfer $316: B=1625 → 1309, A=6575 → 6891
[TX024] Transfer $796: A=6891 → 6095, B=1309 → 2105
[TX025] Transfer $305: A=6095 → 5790, B=2105 → 2410
[TX026] Transfer $517: A=5790 → 5273, B=2410 → 2927
[TX027] Transfer $689: B=2927 → 2238, A=5273 → 5962
[TX028] Payment PAY1024: Transfer $53: A=5962 → 5909, B=2238 → 2291
[TX029] Transfer $342: A=5909 → 5567, B=2291 → 2633
[TX030] Transfer $703: B=2633 → 1930, A=5567 → 6270
[TX031] Transfer $916: B=1930 → 1014, A=6270 → 7186
[TX032] Transfer $570: B=1014 → 444, A=7186 → 7756
[TX033] Transfer $231: B=444 → 213, A=7756 → 7987
[TX034] Transfer $34: B=213 → 179, A=7987 → 8021
[TX035] Transfer $458: A=8021 → 7563, B=179 → 637
[TX036] Transfer $149: B=637 → 488, A=7563 → 7712
[TX037] Transfer $363: B=488 → 125, A=7712 → 8075
[TX038] Transfer $215: A=8075 → 7860, B=125 → 340
[TX039] Transfer $108: B=340 → 232, A=7860 → 7968
[TX040] Transfer $620: A=7968 → 7348, B=232 → 852
[TX041] Transfer $916: A=7348 → 6432, B=852 → 1768
[TX042] Transfer $623: B=1768 → 1145, A=6432 → 7055
[TX043] Transfer $919: A=7055 → 6136, B=1145 → 2064
[TX044] Payment PAY1024: Transfer $53: A=6136 → 6083, B=2064 → 2117
[TX045] Transfer $531: A=6083 → 5552, B=2117 → 2648
[TX046] Transfer $182: B=2648 → 2466, A=5552 → 5734
[TX047] Transfer $800: A=5734 → 4934, B=2466 → 3266
[TX048] Transfer $267: B=3266 → 2999, A=4934 → 5201
[TX049] Transfer $809: A=5201 → 4392, B=2999 → 3808
[TX050] Transfer $487: A=4392 → 3905, B=3808 → 4295
[TX051] Transfer $762: A=3905 → 3143, B=4295 → 5057
[TX052] Transfer $612: A=3143 → 2531, B=5057 → 5669
[TX053] Transfer $976: B=5669 → 4693, A=2531 → 3507
[TX054] Transfer $323: B=4693 → 4370, A=3507 → 3830
[TX055] Transfer $423: A=3830 → 3407, B=4370 → 4793
[TX056] Transfer $756: B=4793 → 4037, A=3407 → 4163
[TX057] Transfer $513: B=4037 → 3524, A=4163 → 4676
[TX058] Transfer $262: B=3524 → 3262, A=4676 → 4938
[TX059] Transfer $872: A=4938 → 4066, B=3262 → 4134
[TX060] Transfer $249: A=4066 → 3817, B=4134 → 4383
[TX061] Transfer $867: B=4383 → 3516, A=3817 → 4684
[TX062] Transfer $217: A=4684 → 4467, B=3516 → 3733
[TX063] Transfer $468: B=3733 → 3265, A=4467 → 4935
[TX064] Transfer $63: A=4935 → 4872, B=3265 → 3328
[TX065] Transfer $968: A=4872 → 3904, B=3328 → 4296
[TX066] Transfer $107: A=3904 → 3797, B=4296 → 4403
[TX067] Transfer $857: A=3797 → 2940, B=4403 → 5260
[TX068] Transfer $668: B=5260 → 4592, A=2940 → 3608
[TX069] Transfer $623: B=4592 → 3969, A=3608 → 4231
[TX070] Transfer $111: A=4231 → 4120, B=3969 → 4080
[TX071] Transfer $60: B=4080 → 4020, A=4120 → 4180
[TX072] Transfer $633: B=4020 → 3387, A=4180 → 4813
[TX073] Transfer $297: B=3387 → 3090, A=4813 → 5110
[TX074] Transfer $592: B=3090 → 2498, A=5110 → 5702
[TX075] Transfer $385: A=5702 → 5317, B=2498 → 2883
[TX076] Transfer $857: A=5317 → 4460, B=2883 → 3740
[TX077] Transfer $214: B=3740 → 3526, A=4460 → 4674
[TX078] Transfer $32: A=4674 → 4642, B=3526 → 3558
[TX079] Transfer $986: A=4642 → 3656, B=3558 → 4544
[TX080] Transfer $913: A=3656 → 2743, B=4544 → 5457
[TX081] Transfer $696: B=5457 → 4761, A=2743 → 3439
[TX082] Transfer $509: B=4761 → 4252, A=3439 → 3948
[TX083] Transfer $434: A=3948 → 3514, B=4252 → 4686
[TX084] Transfer $463: A=3514 → 3051, B=4686 → 5149
[TX085] Transfer $945: B=5149 → 4204, A=3051 → 3996
[TX086] Transfer $411: A=3996 → 3585, B=4204 → 4615
[TX087] Transfer $910: A=3585 → 2675, B=4615 → 5525
[TX088] Transfer $703: A=2675 → 1972, B=5525 → 6228
[TX089] Transfer $300: A=1972 → 1672, B=6228 → 6528
[TX090] Transfer $191: A=1672 → 1481, B=6528 → 6719
[TX091] Transfer $189: B=6719 → 6530, A=1481 → 1670
[TX092] Transfer $387: B=6530 → 6143, A=1670 → 2057
[TX093] Transfer $885: A=2057 → 1172, B=6143 → 7028
[TX094] Transfer $578: B=7028 → 6450, A=1172 → 1750
[TX095] Transfer $445: B=6450 → 6005, A=1750 → 2195
[TX096] Transfer $554: A=2195 → 1641, B=6005 → 6559
[TX097] Transfer $761: A=1641 → 880, B=6559 → 7320
[TX098] Transfer $268: B=7320 → 7052, A=880 → 1148
[TX099] Transfer $904: A=1148 → 244, B=7052 → 7956
POSSIBLE BUG TYPES (choose exactly one):
- CALC_ERROR: Mathematical calculation is incorrect
- NEGATIVE_BAL: Account balance becomes negative
- LOST_UPDATE: Concurrent update causes lost transaction
- DUPLICATE_TXN: Same transaction processed multiple times
Identify the SINGLE bug if any exists.
Respond with ONLY a JSON object:
{"bug_type": "<type>", "bug_location": "<TX_ID>"
Your response:
|
DUPLICATE_TXN
|
TX044
|
Payment PAY1024 processed twice
|
DUPLICATE_TXN
| 99
|
{"bug_type": "DUPLICATE_TXN", "bug_location": "TX044", "explanation": "Payment PAY1024 processed twice"}
|
{"bug_type": "DUPLICATE_TXN", "n_ops": 99}
|
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