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News

Version 936 comes with the utility PicoMUS to compute a minimal unsatisfiable core respectively set (MUS).

Version 535 is the first public release.

Download

[ picosat-936.tar.gz | picosat-913.tar.gz | picosat-846.tar.gz | picosat-632.tar.gz | picosat-535.tar.gz ]

For more details refer to NEWS and to the SAT Race 2010 system description also published as FMV technical report 10/1.

There are three publications on PicoSAT: a longer article in JSAT and a short paper on controlling restarts. In our FMCAD'08 paper on Consistency Checking of All Different Constraints over Bit-Vectors within a SAT-Solver we describe how PicoSAT has been extended to handle all different constraints symbolically.

PicoSAT can generate proofs and cores in memory by compressing the proof trace. It supports the proof format of TraceCheck.

License

PicoSAT uses an MIT style license. In essence, you can use and modify the sources as you like provided that you acknowledge the origin of the software in the source code. More details can be found in the LICENSE file that comes with the sources.

Background

The SAT problem is the classical NP complete problem of searching for a satisfying assignment of a propositional formula in conjunctive normal form (CNF). General information on SAT can be found at www.satlive.org or www.satlib.org. Our invited talk A Short History on SAT Solver Technology and What is Next? describes some of the new features of PicoSAT. The experimental data used in this talk is available as Biere-SAT07-talk-experiments.tar.bz2 (14 MB).