Extending Sledgehammer with SMT solvers

  • Authors:
  • Jasmin Christian Blanchette;Sascha Böhme;Lawrence C. Paulson

  • Affiliations:
  • Institut für Informatik, Technische Universität München, Germany;Institut für Informatik, Technische Universität München, Germany;Computer Laboratory, University of Cambridge, U.K.

  • Venue:
  • CADE'11 Proceedings of the 23rd international conference on Automated deduction
  • Year:
  • 2011

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Abstract

Sledgehammer is a component of Isabelle/HOL that employs firstorder automatic theorem provers (ATPs) to discharge goals arising in interactive proofs. It heuristically selects relevant facts and, if an ATP is successful, produces a snippet that replays the proof in Isabelle. We extended Sledgehammer to invoke satisfiability modulo theories (SMT) solvers as well, exploiting its relevance filter and parallel architecture. Isabelle users are now pleasantly surprised by SMT proofs for problems beyond the ATPs' reach. Remarkably, the best SMT solver performs better than the best ATP on most of our benchmarks