  Many business process models have control-flow errors, such as deadlocks,
which can hinder proper execution. In this paper, we introduce our new
soundness-checking tool that can instantaneously identify errors in BPMN
models, make them comprehensible for modelers, and even suggest corrections to
resolve them automatically. We demonstrate that our tool's soundness checking
is instantaneous, i.e., it takes less than 500ms, by benchmarking our tool
against synthetic BPMN models with increasing size and state space complexity,
as well as realistic models provided in the literature. Moreover, the tool
directly displays possible soundness violations in the model and provides an
interactive counterexample visualization of each violation. Additionally, it
provides fixes to resolve the violations found, which are not currently
available in other tools. The tool is open-source, modular, extensible, and
integrated into a popular BPMN modeling tool.
