SAT-based counterexample-guided abstraction refinement

  title={SAT-based counterexample-guided abstraction refinement},
  author={Edmund M. Clarke and Anubhav Gupta and Ofer Strichman},
  journal={IEEE Transactions on Computer-Aided Design of Integrated Circuits and Systems},
We describe new techniques for model checking in the counterexample-guided abstraction-refinement framework. The abstraction phase "hides" the logic of various variables, hence considering them as inputs. This type of abstraction may lead to "spurious" counterexamples, i.e., traces that cannot be simulated on the original (concrete) machine. We check whether a counterexample is real or spurious with a satisfiability (SAT) checker. We then use a combination of 0-1 integer linear programming and… CONTINUE READING
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