Distributed Markovian Bisimulation Reduction aimed at CSL Model Checking

Stefan Blom, Boudewijn R. Haverkort, Matthias Kuntz, Jaco van de Pol

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    9 Citations (Scopus)
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    The verification of quantitative aspects like performance and dependability by means of model checking has become an important and vivid area of research over the past decade. An important result of that research is the logic CSL (continuous stochastic logic) and its corresponding model checking algorithms. The evaluation of properties expressed in CSL makes it necessary to solve large systems of linear (differential) equations, usually by means of numerical analysis. Both the inherent time and space complexity of the numerical algorithms make it practically infeasible to model check systems with more than 100 million states, whereas realistic system models may have billions of states. To overcome this severe restriction, it is important to be able to replace the original state space with a probabilistically equivalent, but smaller one. The most prominent equivalence relation is bisimulation, for which also a stochastic variant exists (Markovian bisimulation). In many cases, this bisimulation allows for a substantial reduction of the state space size. But, these savings in space come at the cost of an increased time complexity. Therefore in this paper a new distributed signature-based algorithm for the computation of the bisimulation quotient of a given state space is introduced. To demonstrate the feasibility of our approach in both a sequential, and more important, in a distributed setting, we have performed a number of case studies.
    Original languageEnglish
    Title of host publicationProceedings of the 7th International Workshop on Parallel and Distributed Methods in verifiCation
    EditorsIvana Černá, Gerald Lüttgen
    Place of PublicationAmsterdam
    Number of pages16
    Publication statusPublished - 3 Dec 2008
    Event7th International Workshop on Parallel and Distributed Methods in verifiCation, PDMC 2008 - Budapest, Hungary
    Duration: 29 Mar 200829 Mar 2008
    Conference number: 7

    Publication series

    NameElectronic Notes in Theoretical Computer Science
    ISSN (Print)1571-0661
    ISSN (Electronic)1571-0661


    Workshop7th International Workshop on Parallel and Distributed Methods in verifiCation, PDMC 2008
    Abbreviated titlePDMC
    Internet address


    • EC Grant Agreement nr.: FP6/043235


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