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arXiv · 2401.03711

Project and Conquer: Fast Quantifier Elimination for Checking Petri Net Reachability

Nicolas Amat·Silvano Dal Zilio·Didier Le Botlan
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Abstract

We propose a method for checking generalized reachability properties in Petri nets that takes advantage of structural reductions and that can be used, transparently, as a pre-processing step of existing model-checkers. Our approach is based on a new procedure that can project a property, about an initial Petri net, into an equivalent formula that only refers to the reduced version of this net. Our projection is defined as a variable elimination procedure for linear integer arithmetic tailored to the specific kind of constraints we handle. It has linear complexity, is guaranteed to return a sound property, and makes use of a simple condition to detect when the result is exact. Experimental results show that our approach works well in practice and that it can be useful even when there is only a limited amount of reductions.

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Nicolas Amat, Silvano Dal Zilio, Didier Le Botlan. 2024-01-08. Project and Conquer: Fast Quantifier Elimination for Checking Petri Net Reachability. https://doi.org/10.1007/978-3-031-50524-9_5

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