Abstract
In this paper we survey the area of formal verification techniques, with emphasis on model checking due to its wide acceptance by both academia and industry. The major approaches and their characteristics are presented, together with the main problems faced while trying to apply them. With the increased complexity of systems, as well as interest in software correctness, the demand for more powerful automatic techniques is pushing the theories and tools towards integration. We discuss the state of the art in combining formal methods tools, mainly model checking with theorem proving and abstract interpretation. In particular, we present our own recent contribution on an approach to integrate model checking and theorem proving to handle state-rich systems specified using a combination of Z and CSP.
Published Version
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