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Distributed model-checking and counterexample search for CTL logic
by Mohand Cherif Boukala; Laure Petrucci
International Journal of Critical Computer-Based Systems (IJCCBS), Vol. 3, No. 1/2, 2012

 

Abstract: In this paper, we propose a distributed algorithm for CTL model-checking and a counterexample search whenever the CTL formula is not satisfied. The distributed approach is used in order to cope with the state space explosion problem. A cluster of workstations performs collaborative verification over a partitioned state space. Thus, every process involved in the distributed verification performs the labelling procedure on its own partial state space, and uses the parse tree of the CTL formula to evaluate sub-formulas and delay the synchronisations so as to minimise idle time. A counterexample search consists in a distributed construction of the tree-like corresponding to the failure executions. Some experiments have been carried out to evaluate the efficiency of this approach.

Online publication date: Tue, 24-Jan-2012

 

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