In this paper we present a framework for carrying out counterexample guided abstraction-refinement (CEGAR) for systems modelled as rectangular hybrid automata. The main difference, between our approach and previous proposals for CEGAR for hybrid automata, is that we consider the abstractions to be hybrid automata as well. We show that the CEGAR scheme is semi-complete for the class of rectangular hybrid automata and complete for the subclass of initialized rectangular automata. We have implemented the CEGAR based algorithm in a tool called Hare, that makes calls to HyTech to analyze the abstract models and validate the counterexamples. Our experiments demonstrate the usefulness of the approach. © Springer-Verlag 2013.
CITATION STYLE
Prabhakar, P., Duggirala, P. S., Mitra, S., & Viswanathan, M. (2013). Hybrid automata-based CEGAR for rectangular hybrid systems. In Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics) (Vol. 7737 LNCS, pp. 48–67). Springer Verlag. https://doi.org/10.1007/978-3-642-35873-9_6
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