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Efficient Reachability Analysis of Büchi Pushdown Systems for Hardware/Software Co-verification

2010; Springer Science+Business Media; Linguagem: Inglês

10.1007/978-3-642-14295-6_30

1611-3349

Juncao Li, Fei Xie, Thomas Ball, Vladimir Levin,

Software Reliability and Analysis Research

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.