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Conference Papers Year : 2016

Approaching the Coverability Problem Continuously

Abstract

The coverability problem for Petri nets plays a central role in the verification of concurrent shared-memory programs. However, its high EXPSPACE-complete complexity poses a challenge when encountered in real-world instances. In this paper, we develop a new approach to this problem which is primarily based on applying forward coverability in continuous Petri nets as a pruning criterion inside a backward coverability framework. A cornerstone of our approach is the efficient encoding of a recently developed polynomial-time algorithm for reachability in continuous Petri nets into SMT. We demonstrate the effectiveness of our approach on standard benchmarks from the literature, which shows that our approach decides significantly more instances than any existing tool and is in addition often much faster, in particular on large instances.
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Dates and versions

hal-01408044 , version 1 (14-03-2017)

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Michael Blondin, Alain Finkel, Christoph Haase, Serge Haddad. Approaching the Coverability Problem Continuously. 22nd International Conference on Tools and Algorithms for Construction and Analysis of Systems (TACAS 2016), Apr 2016, Eindhoven, Netherlands. pp.480-496, ⟨10.1007/978-3-662-49674-9_28⟩. ⟨hal-01408044⟩
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