Abstract : Distributed systems are hard to design, and formal methods help to find bugs early. Yet, there may still remain a semantic gap between a formal model and the actual distributed implementation, which is generally hand-written. Automated generation of distributed implementations requires an elaborate multiway synchronization protocol. In this paper, we explore how to verify correctness of such protocols. We generate formal models, written in the LNT language, of synchronization scenarios for three protocols and we use the CADP toolbox for automated formal verifications. We expose a bug leading to a deadlock in one protocol, and we discuss protocol extensions.
https://hal.inria.fr/hal-00818788
Contributor : Hugues Evrard
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Submitted on : Monday, April 29, 2013 - 10:57:50 AM
Last modification on : Thursday, October 11, 2018 - 8:48:04 AM
Long-term archiving on : Tuesday, July 30, 2013 - 4:45:10 AM
Hugues Evrard, Frédéric Lang. Formal Verification of Distributed Branching Multiway Synchronization Protocols. 15th International Conference on Formal Methods for Open Object-Based Distributed Systems (FMOOODS) / 33th International Conference on Formal Techniques for Networked and Distributed Systems (FORTE), Jun 2013, Florence, Italy. pp.146-160. ⟨hal-00818788⟩
