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Conference Papers Year : 2017

Goal-Driven Unfolding of Petri Nets

Abstract

Unfoldings provide an efficient way to avoid the state-space explosion due to interleavings of concurrent transitions when exploring the runs of a Petri net. The theory of adequate orders allows one to define finite prefixes of unfoldings which contain all the reachable markings. In this paper we are interested in reachability of a single given marking, called the goal. We propose an algorithm for computing a finite prefix of the unfolding of a 1-safe Petri net that preserves all minimal configurations reaching this goal. Our algorithm combines the unfolding technique with on-the-fly model reduction by static analysis aiming at avoiding the exploration of branches which are not needed for reaching the goal. We present some experimental results.
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Dates and versions

hal-01392203 , version 1 (29-06-2017)
hal-01392203 , version 2 (04-07-2017)

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Thomas Chatain, Loïc Paulevé. Goal-Driven Unfolding of Petri Nets. 28th International Conference on Concurrency Theory (CONCUR 2017), Sep 2017, Berlin, Germany. ⟨10.4230/LIPIcs.CONCUR.2017.14⟩. ⟨hal-01392203v2⟩
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