State Space Reduction Using Partial tau-Confluence

  • Authors:
  • Jan Friso Groote;Jaco van de Pol

  • Affiliations:
  • -;-

  • Venue:
  • MFCS '00 Proceedings of the 25th International Symposium on Mathematical Foundations of Computer Science
  • Year:
  • 2000

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Abstract

We present an efficient algorithm to determine the maximal class of confluent Τ -transitions in a labelled transition system. Confluent Τ -transitions are inert with respect to branching bisimulation. This allows to use Τ -priorisation, which means that in a state with a confluent outgoing Τ -transition all other transitions can be removed, maintaining branching bisimulation. In combination with the removal of Τ-loops, and the compression of Τ-sequences this yields an efficient algorithm to reduce the size of large state spaces.