2010 | OriginalPaper | Buchkapitel
Fast LCF-Style Proof Reconstruction for Z3
verfasst von : Sascha Böhme, Tjark Weber
Erschienen in: Interactive Theorem Proving
Verlag: Springer Berlin Heidelberg
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The Satisfiability Modulo Theories (SMT) solver Z3 can generate proofs of unsatisfiability. We present independent reconstruction of these proofs in the theorem provers Isabelle/HOL and HOL4 with particular focus on efficiency. Our highly optimized implementations outperform previous LCF-style proof checkers for SMT, often by orders of magnitude. Detailed performance data shows that LCF-style proof reconstruction can be faster than proof search in Z3.