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1 2007

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Model Checking Abstract State Machines with Answer Set Programming

Tang C.K.F., Ternovska E.

Fundamenta Informaticae

2007

Vol. 77, nr 1,2

105-141

The quality of a computer system can be enhanced by modelling its design and verifying the correctness of the design before implementation is done. Abstract State Machines (ASMs) provide a mathematical framework for system modelling, while Model Checking is a technology for verification of system properties. Together, they form a powerful tool for checking systems. Bounded Model Checking (BMC) based on Answer Set Programming (ASP) is a competitive model checking approach due to its ability to compactly encode BMC problems. In this paper, we present a method of applying ASP to BMC of ASMs. Given an ASM and a temporal property, we show how to efficiently translate the BMC problem for the ASM into a problem of answer set computation. Experimental results for our method using the answer set solvers SMODELS and CMODELS are also given.