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Automatic Verification of Sequential Circuits Using Temporal Logic

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4 Author(s)
Browne, M.C. ; Department of Computer Science, Carnegie-Mellon University ; Clarke, E.M. ; Dill, D.L. ; Mishra, B.

Verifying the correctness of sequential circuits has been an important problem for a long time. But lack of any formal and efficient method of verification has prevented the creation of practical design aids for this purpose. Since all the known techniques of simulation and prototype testing are time consuming and not very reliable, there is an acute need for such tools. In this paper we describe an automatic verification system for sequential circuits in which specifications are expressed in a propositional temporal logic. In contrast to most other mechanical verification systems, our system does not require any user assistance and is quite fast—experimental results show that state machines with several hundred states can be checked for correctness in a matter of seconds!

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Computers, IEEE Transactions on  (Volume:C-35 ,  Issue: 12 )