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Satometer: how much have we searched?

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3 Author(s)
Aloul, F.A. ; Electr. Eng. & Comput. Sci. Dept., Univ. of Michigan, Ann Arbor, MI, USA ; Sierawski, B.D. ; Sakallah, K.A.

We introduce Satometer, a tool that can be used to estimate the percentage of the search space actually explored by a backtrack Boolean satisfiability (SAT) solver. Satometer calculates a normalized minterm count for those portions of the search space identified by conflicts. The computation is carried out using a zero-suppressed binary decision diagram data structure and can have adjustable accuracy. The data provided by Satometer can help diagnose the performance of SAT solvers and can shed light on the nature of a SAT instance.

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Computer-Aided Design of Integrated Circuits and Systems, IEEE Transactions on  (Volume:22 ,  Issue: 8 )