Bourbouh, Hamza and Garoche, Pierre-Loïc and Garion, Christophe
and Gurfinkel, Arie and Kahsai, Temesghen and Thirioux, Xavier
Automated analysis of Stateflow models.
(2017)
In: 21st International Conference on Logic for Programming, Artificial Intelligence and Reasoning (LPAR 2017), 7 May 2017 - 12 May 2017 (Maun, Botswana).
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(Document in English)
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Official URL: https://doi.org/10.29007/b8gq
Abstract
Stateflow is a widely used modeling framework for embedded and cyberphysical systems where control software interacts with physical processes. In this work, we present a framework and a fully automated safety verification technique for Stateflow models. Our approach is two-folded: (i) we faithfully compile Stateflow models into hierarchical state machines, and (ii) we use automated logic-based verification engine to decide the validity of safety properties. The starting point of our approach is a denotational semantics of Stateflow. We propose a compilation process using continuation-passing style (CPS) denotational semantics. Our compilation technique preserves the structural and modal behavior of the system. The overall approach is implemented as an open source toolbox that can be integrated into the existing Mathworks Simulink/Stateflow modeling framework. We present preliminary experimental evaluations that illustrate the effectiveness of our approach in code generation and safety verification of industrial scale Stateflow models.
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