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Circuit-Based Search Space Pruning in QBF

  • Mikoláš Janota
Conference paper
First Online:
Part of the Lecture Notes in Computer Science book series (LNCS, volume 10929)

Abstract

This paper describes the algorithm implemented in the QBF solver CQESTO, which has placed second in the non-CNF track of the last year’s QBF competition. The algorithm is inspired by the CNF-based solver QESTO. Just as QESTO, CQESTO invokes a SAT solver in a black-box fashion. However, it directly operates on the circuit representation of the formula. The paper analyzes the individual operations that the solver performs.

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Notes

Acknowledgments

This work was supported by national funds through Fundação para a Ciência e a Tecnologia (FCT) with reference UID/CEC/50021/2013. The author would like to thank Nikolaj Bjørner and João Marques-Silva for the helpful discussions on the topic.

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© Springer International Publishing AG, part of Springer Nature 2018

Authors and Affiliations

  1. 1.IST/INESC-IDUniversity of LisbonLisbonPortugal

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