TY - GEN
T1 - Boolean equi-propagation for optimized SAT encoding
AU - Metodi, Amit
AU - Codish, Michael
AU - Lagoon, Vitaly
AU - Stuckey, Peter J.
PY - 2011/9/26
Y1 - 2011/9/26
N2 - We present an approach to propagation based SAT encoding, Boolean equi-propagation, where constraints are modelled as Boolean functions which propagate information about equalities between Boolean literals. This information is then applied as a form of partial evaluation to simplify constraints prior to their encoding as CNF formulae. We demonstrate for a variety of benchmarks that our approach leads to a considerable reduction in the size of CNF encodings and subsequent speed-ups in SAT solving times.
AB - We present an approach to propagation based SAT encoding, Boolean equi-propagation, where constraints are modelled as Boolean functions which propagate information about equalities between Boolean literals. This information is then applied as a form of partial evaluation to simplify constraints prior to their encoding as CNF formulae. We demonstrate for a variety of benchmarks that our approach leads to a considerable reduction in the size of CNF encodings and subsequent speed-ups in SAT solving times.
UR - http://www.scopus.com/inward/record.url?scp=80053014980&partnerID=8YFLogxK
U2 - 10.1007/978-3-642-23786-7_47
DO - 10.1007/978-3-642-23786-7_47
M3 - Conference contribution
AN - SCOPUS:80053014980
SN - 9783642237850
T3 - Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)
SP - 621
EP - 636
BT - Principles and Practice of Constraint Programming, CP 2011 - 17th International Conference, Proceedings
T2 - 17th International Conference on Principles and Practice of Constraint Programming, CP 2011
Y2 - 12 September 2011 through 16 September 2011
ER -