Papers › POPACheck: A Model Checker for Probabilistic Pushdown Automata
POPACheck: A Model Checker for Probabilistic Pushdown Automata
Francesco Pontiggia, Ezio Bartocci, Michele Chiari
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We present POPACheck, the first model checking tool for probabilistic Pushdown Automata (pPDA) supporting temporal logic specifications. POPACheck provides a user-friendly probabilistic modeling language with recursion that automatically translates into Probabilistic Operator Precedence Automata (pOPA). pOPA are a class of pPDA that can express all the behaviors of probabilistic programs: sampling, conditioning, recursive procedures, and nested inference queries. On pOPA, POPACheck can solve reachability queries as well as qualitative and quantitative model checking queries for specifications in Linear Temporal Logic (LTL) and a fragment of Precedence Oriented Temporal Logic (POTL), a logic for context-free properties such as pre/post-conditioning.
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