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Scalable hybrid verification for embedded software

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6 Author(s)
Behrend, J. ; Dept. of Comput. Eng., Univ. of Tubingen, Tübingen, Germany ; Lettnin, D. ; Heckeler, P. ; Ruf, J.
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The verification of embedded software has become an important subject over the last years. However, neither standalone verification approaches, like simulation-based or formal verification, nor state-of-the-art hybrid/semiformal verification approaches are able to verify large and complex embedded software with hardware dependencies. This work presents a new scalable and extendable hybrid verification approach for the verification of temporal properties in embedded software with hardware dependencies using for the first time a new mixed bottom-up/top-down algorithm. Therefore, new algorithms and methodologies like static parameter assignment and counterexample guided simulation are proposed in order to combine simulation-based and formal verification in a new way. We have successfully applied this hybrid approach to embedded software applications: Motorola's Powerstone Benchmark suite and a complex industrial embedded automotive software. The results show that our approach scales better than stand-alone software model checkers to reach deep state spaces. The whole approach is best suited for fast falsification.

Published in:

Design, Automation & Test in Europe Conference & Exhibition (DATE), 2011

Date of Conference:

14-18 March 2011