A Symbolic Semantics for Abstract Model Checking

  • Authors:
  • Francesca Levi

  • Affiliations:
  • -

  • Venue:
  • SAS '98 Proceedings of the 5th International Symposium on Static Analysis
  • Year:
  • 1998

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Abstract

We present a finite symbolic semantics of value-passing concurrent processes, that can be suitably interpreted over abstract values to compute a lower approximate semantics of full µ-calculus. The main feature of the semantics is that classical branching is replaced by explicit relations of non-deterministic and alternative choices among transitions. A combination of safe upper and lower approximations of the basic operators of the logic is used to handle negation. The relations of non-deterministic and alternative choices turn out to be very useful for the dual approximations of the existential next modality.