Approximated Context-Sensitive Analysis for Parameterized Verification

  • Parosh Aziz Abdulla
  • Giorgio Delzanno
  • Ahmed Rezine
Conference paper
Part of the Lecture Notes in Computer Science book series (LNCS, volume 5522)


We propose a verification method for parameterized systems with global conditions. The method is based on context-sensitive constraints, a symbolic representation of infinite sets of configurations defined on top of words over a finite alphabet. We first define context-sensitive constraints for an exact symbolic backward analysis of parameterized systems with global conditions. Since the model is Turing complete, such an analysis is not guaranteed to terminate. To turn the method into a verification algorithm, we introduce context-sensitive constraints that over-approximate the set of backward reachable states and show how to symbolically test entailment and compute predecessors. We apply the resulting algorithm to automatically verify parameterized models for which the exact analysis and other existing verification methods either diverge or return false positives.


Global Condition Mutual Exclusion Regular Language Global Transition Cache Coherence Protocol 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.


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Copyright information

© IFIP International Federation for Information Processing 2009

Authors and Affiliations

  • Parosh Aziz Abdulla
    • 1
  • Giorgio Delzanno
    • 2
  • Ahmed Rezine
    • 3
  1. 1.Uppsala UniversitySweden
  2. 2.Università di GenovaItaly
  3. 3.University of Paris 7France

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