Merged Processes — A New Condensed Representation of Petri Net Behaviour

  • Victor Khomenko
  • Alex Kondratyev
  • Maciej Koutny
  • Walter Vogler
Part of the Lecture Notes in Computer Science book series (LNCS, volume 3653)


Model checking based on Petri net unfoldings is an approach widely applied to cope with the state space explosion problem.

In this paper we propose a new condensed representation of a Petri net’s behaviour called merged processes, which copes well not only with concurrency, but also with other sources of state space explosion, viz. sequences of choices and non-safeness. Moreover, this representation is sufficiently similar to the traditional unfoldings, so that a large body of results developed for the latter can be re-used. Experimental results indicate that the proposed representation of a Petri net’s behaviour alleviates the state space explosion problem to a significant degree and is suitable for model checking.


Merged processes Petri net unravelling Petri net unfolding state space explosion model checking formal verification 


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Copyright information

© Springer-Verlag Berlin Heidelberg 2005

Authors and Affiliations

  • Victor Khomenko
    • 1
  • Alex Kondratyev
    • 2
  • Maciej Koutny
    • 1
  • Walter Vogler
    • 3
  1. 1.School of Computing ScienceUniversity of NewcastleU.K.
  2. 2.Cadence Berkeley LabsBerkeleyUSA
  3. 3.Institut für InformatikUniversität AugsburgGermany

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