2000 | OriginalPaper | Chapter
Model Checking with Finite Complete Prefixes Is PSPACE-Complete
Author : Keijo Heljanko
Published in: CONCUR 2000 — Concurrency Theory
Publisher: Springer Berlin Heidelberg
Included in: Professional Book Archive
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Unfoldings are a technique for verification of concurrent and distributed systems introduced by McMillan. The method constructs a finite complete prefix, which can be seen as a symbolic representation of an interleaved reachability graph. We show that model checking a fixed size formula of several temporal logics, including LTL, CTL, and CTL*, is PSPACE-complete in the size of a finite complete prefix of a 1-safe Petri net. This proof employs a class of 1-safe Petri nets for which it is easy to generate a finite complete prefix in polynomial time.