1 The Department2 Programming, Logic and Semantics, Software & Systems, The Department3 unknown
Abstraction refinement techniques in probabilistic model checking are prominent approaches to the verification of very large or infinite-state probabilistic concurrent systems. At the core of the refinement step lies the implicit or explicit analysis of a counterexample. This paper proposes an abstraction refinement approach for the probabilistic computation tree logic (PCTL), which is based on incrementally computing a sequence of may- and must-quotient automata. These are induced by depth-bounded bisimulation equivalences of increasing depth. The approach is both sound and complete, since the equivalences converge to the genuine PCTL equivalence. Experimental results with a prototype implementation show the effectiveness of the approach.
International Conference on Application of Concurrency To System Design. Proceedings, 2013, p. 11-20
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13th International Conference on Application of Concurrency to System DesignInternational Conference on Application of Concurrency to System Design, 2013