BISIMULATOR: a modular tool for on-the-fly equivalence checking

  • Authors:
  • Damien Bergamini;Nicolas Descoubes;Christophe Joubert;Radu Mateescu

  • Affiliations:
  • Inria Rhône-Alpes/Vasy, Montbonnot St Martin, France;Inria Rhône-Alpes/Vasy, Montbonnot St Martin, France;Inria Rhône-Alpes/Vasy, Montbonnot St Martin, France;Inria Rhône-Alpes/Vasy, Montbonnot St Martin, France

  • Venue:
  • TACAS'05 Proceedings of the 11th international conference on Tools and Algorithms for the Construction and Analysis of Systems
  • Year:
  • 2005

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Abstract

The equivalence checking problem consists in verifying that a system (e.g., a protocol) matches its abstract specification (e.g., a service) by comparing their Labeled Transition Systems (Ltss) modulo a given equivalence relation. Two approaches are traditionally used to perform equivalence checking: global verification requires to construct the two Ltss before comparison, whereas local (or on-the-fly) verification allows to explore them incrementally during comparison. The latter approach is able to detect errors even in prohibitively large systems, and therefore reveals more effective in combating state explosion.