A Modular Integration of SAT/SMT Solvers to Coq through Proof Witnesses
نویسندگان
چکیده
We present a way to enjoy the power of SAT and SMT provers in Coq without compromising soundness. This requires these provers to return not only a yes/no answer, but also a proof witness that can be independently rechecked. We present such a checker, written and fully certified in Coq. It is conceived in a modular way, in order to tame the proofs’ complexity and to be extendable. It can currently check witnesses from the SAT solver ZChaff and from the SMT solver veriT. Experiments highlight the efficiency of this checker. On top of it, new reflexive Coq tactics have been built that can decide a subset of Coq’s logic by calling external provers and carefully checking their answers.
منابع مشابه
Verifying SAT and SMT in Coq for a fully automated decision procedure
Enjoying the power of SAT and SMT solvers in the Coq proof assistant without compromising soundness requires more than a yes/no answer from them. SAT and SMT solvers should also return a proof witness that can be checked by an external tool. We propose a fully certified checker for such witnesses written in Coq. It can currently check witnesses from the SAT solvers ZChaff and MiniSat and from t...
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