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Optimistic synchronization-based state-space reduction. (English) Zbl 1031.68085
Garavel, Hubert (ed.) et al., Tools and algorithms for the construction and analysis of systems. 9th international conference TACAS 2003, held as part of the joint European conferences on theory and practice of software, ETAPS 2003, Warsaw, Poland, April 7-11, 2003. Proceedings. Berlin: Springer. Lect. Notes Comput. Sci. 2619, 489-504 (2003).
Summary: Reductions that aggregate fine-grained transitions into coarser transitions can significantly reduce the cost of automated verification, by reducing the size of the state space. We propose a reduction that can exploit common synchronization disciplines, such as the use of mutual exclusion for accesses to shared data structures. Exploiting them using traditional reduction theorems requires checking that the discipline is followed in the original (i.e., unreduced) system. That check can be prohibitively expensive. This paper presents a reduction that instead requires checking whether the discipline is followed in the reduced system. This check may be much cheaper, because the reachable state space is smaller.
For the entire collection see [Zbl 1017.00035].

MSC:
68Q85 Models and methods for concurrent and distributed computing (process algebras, bisimulation, transition nets, etc.)
68N30 Mathematical aspects of software engineering (specification, verification, metrics, requirements, etc.)
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