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arXiv · 1611.01296

Goal-Driven Unfolding of Petri Nets

Thomas Chatain·Loïc Paulevé
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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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Thomas Chatain, Loïc Paulevé. 2016-11-04. Goal-Driven Unfolding of Petri Nets. https://arxiv.org/abs/1611.01296

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