Counterexamples in probabilistic model checking

  • Authors:
  • Tingting Han;Joost-Pieter Katoen

  • Affiliations:
  • Software Modelling and Verification, RWTH Aachen, Germany and Formal Methods and Tools, University of Twente, The Netherlands;Software Modelling and Verification, RWTH Aachen, Germany and Formal Methods and Tools, University of Twente, The Netherlands

  • Venue:
  • TACAS'07 Proceedings of the 13th international conference on Tools and algorithms for the construction and analysis of systems
  • Year:
  • 2007

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Abstract

This paper considers algorithms for counterexample generation for (bounded) probabilistic reachability properties in fully probabilistic systems. Finding the strongest evidence (i.e, the most probable path) violating a (bounded) until-formula is shown to be reducible to a single-source (hop-constrained) shortest path problem. Counterexamples of smallest size that aremostly deviating from the required probability bound can be computed by adopting (partially new hopconstrained) k shortest paths algorithms that dynamically determine k.