Distributed Memory LTL Model Checking Based on Breadth First Search

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Authors

BARNAT Jiří BRIM Luboš CHALOUPKA Jakub

Year of publication 2004
Type Monograph
MU Faculty or unit

Faculty of Informatics

Citation
Description We propose a parallel distributed memory on-the-fly algorithm for enumerative LTL model checking. The algorithm is designed for network of workstations communicating via MPI. The detection of cycles (faulty runs) effectively employs the so called back-level edges. In particular, a parallel level synchronized breadth first search of the graph is performed to discover all back-level edges and for each level the back-level edges are checked in parallel by a nested search procedure to confirm or refute the presence of a cycle. Several optimizations of the basic algorithm are presented and advantages and drawbacks of their application to distributed LTL model checking are discussed. Experimental evaluation of the algorithm is presented.
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