Practical verification of multi-agent systems against SLK specifications

摘要

We introduce Strategy Logic with Knowledge, a novel formalism to reason about knowledge and strategic ability in memoryless multi-agent systems with incomplete information. We exemplify its expressive power; we define the model checking problem for the logic and show that it is PSPACE-COMPLETE. We propose a labelling algorithm for solving the verification problem that we show is amenable to symbolic implementation. We introduce MCMAS(SLK), an extension of the open-source model checker MCMAS, implementing the proposed algorithm. We report the benchmarks obtained on a number of scenarios from the literature, including the dining cryptographers protocol. (c) 2017 Published by Elsevier Inc.