Ranking abstraction of recursive programs

  • Authors:
  • Ittai Balaban;Ariel Cohen;Amir Pnueli

  • Affiliations:
  • Dept. of Computer Science, New York University;Dept. of Computer Science, New York University;Dept. of Computer Science, New York University

  • Venue:
  • VMCAI'06 Proceedings of the 7th international conference on Verification, Model Checking, and Abstract Interpretation
  • Year:
  • 2006

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Abstract

We present a method for model-checking of safety and liveness properties over procedural programs, by combining state and ranking abstractions with procedure summarization. Our abstraction is an augmented finitary abstraction [KP00,BPZ05], meaning that a concrete procedural program is first augmented with a well founded ranking function, and then abstracted by a finitary state abstraction. This results in a procedural abstract program with strong fairness requirements which is then reduced to a finite-state fair discrete system (fds) using procedure summarization. This fds is then model checked for the property.