# A cut-off approach for bounded verification of parameterized systems

@article{Yang2010ACA, title={A cut-off approach for bounded verification of parameterized systems}, author={Qiusong Yang and Mingshu Li}, journal={2010 ACM/IEEE 32nd International Conference on Software Engineering}, year={2010}, volume={1}, pages={345-354} }

The features in multi-threaded programs, such as recursion, dynamic creation and communication, pose a great challenge to formal verification. A widely adopted strategy is to verify tentatively a system with a smaller size, by limiting the depth of recursion or the number of replicated processes, to find errors without ensuring the full correctness. The model checking of parameterized systems, a parametric infinite family of systems, is to decide if a property holds in every size instance…

## 20 Citations

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This work converts the multi-parameterised verification of safety properties by refinement checking in the context of labelled transition systems (LTSs) into the unsatisfiability of a first-order formula and provides a SAT modulo theories (SMT)-based semi-algorithm for dynamically, i.e., iteratively, computing the cut-offs.

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A generic compositional formalism is introduced, based on parameterised labelled transition systems, which allows to express safety properties of parameterised quorum systems and proves that any parameterised verification task expressible in the formalism collapses into finitely many finite state refinement checking problems.

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