Causal Reasoning for Safety in Hennessy Milner Logic

Determining and computing root causes in system failures is a significant issue in science and engineering. In this paper, we introduce a notion of causality for explaining counter-examples in system analysis based on formal models. The counter-examples are produced by checking for hazardous situations expressed in the Hennessy-Milner Logic, in the context of Labelled Transition System models. We also introduce CauseJMu, a tool for automatically identifying such causal computations within a system model. CauseJMu relies on encoding causality in terms of an extension of Hennessy-Milner Logic to recursive formulae with data. The encodings enable deciding whether a certain computation is causal or not, using the mCRL2 model checker.

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Opracowanie rekordu ze środków MNiSW, umowa Nr 461252 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2020).