Back to the future: revisiting precise program verification using SMT solvers

  • Authors:
  • Shuvendu Lahiri;Shaz Qadeer

  • Affiliations:
  • Microsoft Research, Redmond, WA;Microsoft Research, Redmond, WA

  • Venue:
  • Proceedings of the 35th annual ACM SIGPLAN-SIGACT symposium on Principles of programming languages
  • Year:
  • 2008

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Abstract

This paper takes a fresh look at the problem of precise verification of heap-manipulating programs using first-order Satisfiability-Modulo-Theories (SMT) solvers. We augment the specification logic of such solvers by introducing the Logic of Interpreted Sets and Bounded Quantification for specifying properties of heap-manipulating programs. Our logic is expressive, closed under weakest preconditions, and efficiently implementable on top of existing SMT solvers. We have created a prototype implementation of our logic over the solvers Simplify and Z3 and used our prototype to verify many programs. Our preliminary experience is encouraging; the completeness and the efficiency of the decisionprocedure is clearly evident in practice and has greatly improved the user experience of the verifier.