模型验证 model checking 模型的语义保持问题

探讨了ModelChecking方法在系统验证中的应用,强调了建模过程中语义一致性的重要性,指出模型与期望行为及真实系统间的一致性是该方法应用的关键挑战。

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Model Checking方法是基于系统模型来进行验证,建模过程需要对系统进行抽象,那么期望行为与对应模型之间,或者所建模型与基于该模型所创建的具体系统之间,存在一个语义一致性问题,即模型与期望与真实系统之间是否语义一致的问题,或许这也是限制该方法落地应用的一个因素!?

Model checking is a technique for verifying finite state concurrent systems such as sequential circuit designs and communication protocols. It has a number of advantages over traditional approaches that are based on simulation, testing, and deductive reasoning. In particular, model checking is automatic and usually quite fast. Also, if the design contains an error, model checking will produce a counterexample that can be used to pinpoint the source of the error. The method, which was awarded the 1998 ACM Paris Kanellakis Award for Theory and Practice, has been used successfully in practice to verify real industrial designs, and companies are beginning to market commercial model checkers. The main challenge in model checking is dealing with the state space explosion problem. This problem occurs in systems with many components that can interact with each other or systems with data structures that can assume many different values. In such cases the number of global states can be enormous. Researchers have made considerable progress on this problem over the last ten years. This is the first comprehensive presentation of the theory and practice of model checking. The book, which includes basic as well as state-of-the-art techniques, algorithms, and tools, can be used both as an introduction to the subject and as a reference for researchers. About the Authors Edmund M. Clarke, a pioneer of the automated method called Model Checking, is FORE Systems Professor of Computer Science and Professor of Electrical and Computer Engineering at Carnegie Mellon University, and a winner of the 2007 Turing Award given by the Association for Computing Machinery. Doron Peled is Professor of Computer Science at the University of Warwick, Coventry, UK. Endorsements "Model Checking is bound to be the pre-eminent source for research, teaching, and industrial practice on this important subject. The authors include the foremost experts. This is the first truly comprehensive treatment of a line of research that has gone from conception to industrial practice in only two decades." —R. P. Kurshan, Distinguished Member Technical Staff, Bell Laboratories
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