Abstract : Refinement checking plays an important role in system verification. This means that the correctness of the system is established by showing a refinement relation between two models; one for the implementation and one for the specification. In [21], Wang et al. describe an algorithm based on antichains for efficiently deciding stable failures refinement and failures-divergences refinement. We identify several issues pertaining to the correctness and performance in these algorithms and propose new, correct, antichain-based algorithms. Using a number of experiments we show that our algorithms outperform the original ones in terms of running time and memory usage.
https://hal.inria.fr/hal-02313731 Contributor : Hal IfipConnect in order to contact the contributor Submitted on : Friday, October 11, 2019 - 2:55:05 PM Last modification on : Friday, October 11, 2019 - 3:43:39 PM
Maurice Laveaux, Jan Friso Groote, Tim Willemse. Correct and Efficient Antichain Algorithms for Refinement Checking. 39th International Conference on Formal Techniques for Distributed Objects, Components, and Systems (FORTE), Jun 2019, Copenhagen, Denmark. pp.185-203, ⟨10.1007/978-3-030-21759-4_11⟩. ⟨hal-02313731⟩