Compositional SCC Analysis for Language Emptiness

  title={Compositional SCC Analysis for Language Emptiness},
  author={Chao Wang and Roderick Bloem and Gary D. Hachtel and Kavita Ravi and Fabio Somenzi},
  journal={Formal Methods in System Design},
We propose a refinement approach to language emptiness, which is based on the enumeration and the successive refinements of SCCs on over-approximations of the exact system. Our algorithm is compositional: It performs as much computation as possible on the abstract systems, and prunes uninteresting part of the search space as early as possible. It decomposes the state space disjunctively so that each state subset can be checked in isolation to decide language emptiness for the given system. We… CONTINUE READING


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