  This report presents VLSAT-3 (an acronym for "Very Large Boolean
SATisfiability problems"),the third part of a benchmark suite to be used in
scientific experimentsand software competitions addressing SAT and SMT
(Satisfiability Modulo Theories) solving issues.VLSAT-3 contains 1200
(600~satisfiable and 600~unsatisfiable) quantifier-free first-order logic
formulasof increasing complexity, proposed in SMT-LIB format under a permissive
Creative Commons license.More than 90% of these benchmarks have been used
during the 16th International Satisfiability Modulo TheoriesCompetition
(SMT-COMP~2021).
