The Bedwyr System for Model Checking over Syntactic Expressions

  • Authors:
  • David Baelde;Andrew Gacek;Dale Miller;Gopalan Nadathur;Alwen Tiu

  • Affiliations:
  • INRIA & LIX, ÉÉÉcole Polytechnique,;Digital Technology Center and Dept of CS, University of Minnesota,;INRIA & LIX, ÉÉÉcole Polytechnique,;Digital Technology Center and Dept of CS, University of Minnesota,;Australian National University and NICTA,

  • Venue:
  • CADE-21 Proceedings of the 21st international conference on Automated Deduction: Automated Deduction
  • Year:
  • 2007

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Abstract

Bedwyr is a generalization of logic programming that allows model checking directly on syntactic expressions possibly containing bindings. This system, written in OCaml, is a direct implementation of two recent advances in the theory of proof search. The first is centered on the fact that both finite success and finite failure can be captured in the sequent calculus by incorporating inference rules for definitionsthat allow fixed pointsto be explored. As a result, proof search in such a sequent calculus can capture simple model checking problems as well as may and must behavior in operational semantics. The second is that higher-order abstract syntax is directly supported using term-level 茂戮驴-binders and the 茂戮驴 quantifier. These features allow reasoning directly on expressions containing bound variables.