منابع مشابه
Extended clause learning
The past decade has seen clause learning as the most successful algorithm for SAT instances arising from real-world applications. This practical success is accompanied by theoretical results showing clause learning as equivalent in power to resolution. There exist, however, problems that are intractable for resolution, for which clause-learning solvers are hence doomed. In this paper, we presen...
متن کاملConflict-Driven XOR-Clause Learning (extended version)
Modern conflict-driven clause learning (CDCL) SAT solvers are very good in solving conjunctive normal form (CNF) formulas. However, some application problems involve lots of parity (xor) constraints which are not necessarily efficiently handled if translated into CNF. This paper studies solving CNF formulas augmented with xor-clauses in the DPLL(XOR) framework where a CDCL SAT solver is coupled...
متن کاملExtension Heuristics for Extended Clause Learning
The Boolean Satisfiablity problem or SAT for short is a decision problem which determines whether a given propositional logic formula could evaluate to true under some assignment of variable values. For the past decade, the clause learning framework has been widely implemented due to its success in solving real-world problems. However, as clause learning is equivalent in power to resolution, cl...
متن کاملA Restriction of Extended Resolution for Clause Learning SAT Solvers
Modern complete SAT solvers almost uniformly implement variations of the clause learning framework introduced by Grasp and Chaff. The success of these solvers has been theoretically explained by showing that the clause learning framework is an implementation of a proof system which is as poweful as resolution. However, exponential lower bounds are known for resolution, which suggests that signi...
متن کاملClause Learning in SAT
The development of clause learning has had a tremendous effect on the overall performance of SAT-Solvers. Clause learning has allowed SAT-Solvers to tackle industrial sized problems that formerly would have required impractical time scales. The development of techniques for efficient clause management and storage have also proved important in reducing some of the memory usage problems inherent ...
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ژورنال
عنوان ژورنال: Artificial Intelligence
سال: 2010
ISSN: 0004-3702
DOI: 10.1016/j.artint.2010.07.008