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Published in:
2010 | OriginalPaper | Chapter
Efficient Reachability Analysis of Büchi Pushdown Systems for Hardware/Software Co-verification
Authors : Juncao Li, Fei Xie, Thomas Ball, Vladimir Levin
Published in: Computer Aided Verification
Publisher: Springer Berlin Heidelberg
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We present an efficient approach to reachability analysis of Büchi Pushdown System (BPDS) models for Hardware/Software (HW/SW) co-verificat-ion. This approach utilizes the asynchronous nature of the HW/SW interactions to reduce unnecessary HW/SW state transition orders being explored in co-verificat-ion. The reduction is applied when the verification model is constructed. We have realized this approach in our co-verification tool, CoVer, and applied it to the co-verification of two fully functional Windows device drivers with their device models respectively. Both of the drivers are open source and their original C code has been used. CoVer has proven seven safety properties and detected seven previously undiscovered software bugs. Evaluation shows that the reduction can significantly scale co-verification.