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arXiv · 2003.11689

Benchmarking Software Model Checkers on Automotive Code

Lukas Westhofen·Philipp Berger·Joost-Pieter Katoen
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Abstract

This paper reports on our experiences with verifying automotive C code by state-of-the-art open source software model checkers. The embedded C code is automatically generated from Simulink open-loop controller models. Its diverse features (decision logic, floating-point and pointer arithmetic, rate limiters and state-flow systems) and the extensive use of floating-point variables make verifying the code highly challenging. Our study reveals large discrepancies in coverage - which is at most only 20% of all requirements --- and tool strength compared to results from the main annual software verification competition. A hand-crafted, simple extension of the verifier CBMC with $k$-induction delivers results on 63% of the requirements while the proprietary BTC EmbeddedValidator covers 80% and obtains bounded verification results for most of the remaining requirements.

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Lukas Westhofen, Philipp Berger, Joost-Pieter Katoen. 2020-03-26. Benchmarking Software Model Checkers on Automotive Code. https://arxiv.org/abs/2003.11689

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