Boosting Verification by Automatic Tuning of Decision Procedures

  • Authors:
  • Frank Hutter;Domagoj Babic;Holger H. Hoos;Alan J. Hu

  • Affiliations:
  • -;-;-;-

  • Venue:
  • FMCAD '07 Proceedings of the Formal Methods in Computer Aided Design
  • Year:
  • 2007

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Abstract

Parameterized heuristics abound in computer aided design and verification, and manual tuning of the respective parameters is difficult and time-consuming. Very recent results from the artificial intelligence (AI) community suggest that this tuning process can be automated, and that doing so can lead to significant performance improvements; furthermore, automated parameter optimization can provide valuable guidance during the development of heuristic algorithms. In this paper, we study how such an AI approach can improve a state-of-the-art SAT solver for large, real-world bounded model-checking and software verification instances. The resulting, automatically-derived parameter settings yielded runtimes on average 4.5 times faster on bounded model checking instances and 500 times faster on software verification problems than extensive hand-tuning of the decision procedure. Furthermore, the availability of automatic tuning influenced the design of the solver, and the automatically-derived parameter settings provided a deeper insight into the properties of problem instances.