Invariant Discovery via Failed Proof Attempts

  • Authors:
  • Jamie Stark;Andrew Ireland

  • Affiliations:
  • -;-

  • Venue:
  • LOPSTR '98 Proceedings of the 8th International Workshop on Logic Programming Synthesis and Transformation
  • Year:
  • 1998

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Abstract

We present a framework for automating the discovery of loop invariants based upon failed proof attempts. The discovery of suitable loop invariants represents a bottleneck for automatic verification of imperative programs. Using the proof planning framework we reconstruct standard heuristics for developing invariants. We relate these heuristics to the analysis of failed proof attempts allowing us to discover invariants through a process of refinement.