Multiple State and Single State Tableaux for Combining Local and Global Model Checking

  • Authors:
  • Armin Biere;Edmund M. Clarke;Yunshan Zhu

  • Affiliations:
  • -;-;-

  • Venue:
  • Correct System Design, Recent Insight and Advances, (to Hans Langmaack on the occasion of his retirement from his professorship at the University of Kiel)
  • Year:
  • 1999

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Abstract

The verification process of reactive systems in local model checking [2, 9, 28] and in explicit state model checking [14, 16] is on-the-fly. Therefore only those states of a system have to be traversed that are necessary to prove a property. In addition, if the property does not hold, than often only a small subset of the state space has to be traversed to produce a counterexample. Global model checking [8, 24] and, in particular, symbolic model checking [6, 23] can utilize compact representations of the state space, e.g. BDDs [5], to handle much larger designs than what is possible with local and explicit model checking. We present a new model checking algorithm for LTL that combines both approaches. In essence, it is a generalization of the tableau construction of [2] that enables the use of BDDs but still is on-the-fly.