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Abstract answer set solvers with backjumping and learning

Published online by Cambridge University Press:  22 February 2011

YULIYA LIERLER*
Affiliation:
Department of Computer Science, University of Kentucky, 773C Anderson Hall, Lexington, USA (e-mail: yuliya@cs.uky.edu)
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Abstract

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Nieuwenhuis et al. (2006. Solving SAT and SAT modulo theories: From an abstract Davis-Putnam-Logemann-Loveland procedure to DPLL(T). Journal of the ACM 53(6), 937977 showed how to describe enhancements of the Davis–Putnam–Logemann–Loveland algorithm using transition systems, instead of pseudocode. We design a similar framework for several algorithms that generate answer sets for logic programs: smodels, smodelscc, asp-sat with Learning (cmodels), and a newly designed and implemented algorithm sup. This approach to describe answer set solvers makes it easier to prove their correctness, to compare them, and to design new systems.

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Type
Regular Papers
Copyright
Copyright © Cambridge University Press 2011