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Formal Methods in System Design

, Volume 32, Issue 3, pp 285–301 | Cite as

Automated assumption generation for compositional verification

  • Anubhav Gupta
  • K. L. McMillan
  • Zhaohui Fu
Article

Abstract

We describe a method for computing a minimum-state automaton to act as an intermediate assertion in assume-guarantee reasoning, using a sampling approach and a Boolean satisfiability solver. For a set of synthetic benchmarks intended to mimic common situations in hardware verification, this is shown to be significantly more effective than earlier approximate methods based on Angluin’s L* algorithm. For many of these benchmarks, this method also outperforms BDD-based model checking and interpolation-based model checking. We also demonstrate how domain knowledge can be incorporated into our algorithm to improve its performance.

Keywords

Formal verification Model checking Compositional verification Assume-guarantee L* SAT Decision tree 

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Copyright information

© Springer Science+Business Media, LLC 2008

Authors and Affiliations

  1. 1.Cadence Design Systems, Inc.BerkeleyUSA

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