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» Clause Elimination Procedures for CNF Formulas
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ACSD
2007
IEEE
93views Hardware» more  ACSD 2007»
13 years 7 months ago
SAT-based Unbounded Model Checking of Timed Automata
We present an improvement of the SAT-based Unbounded Model Checking (UMC) algorithm. UMC, a symbolic approach introduced in [7], uses propositional formulas in conjunctive normal ...
Wojciech Penczek, Maciej Szreter
ICALP
2001
Springer
13 years 10 months ago
Lower Bounds for the Weak Pigeonhole Principle Beyond Resolution
We work with an extension of Resolution, called Res(2), that allows clauses with conjunctions of two literals. In this system there are rules to introduce and eliminate such conju...
Albert Atserias, Maria Luisa Bonet, Juan Luis Este...
DATE
2003
IEEE
92views Hardware» more  DATE 2003»
13 years 11 months ago
Local Search for Boolean Relations on the Basis of Unit Propagation
We propose a method for local search of Boolean relations relating variables of a CNF formula. The method is to branch on small subsets of the set of CNF variables and to analyze ...
Yakov Novikov
SAT
2009
Springer
119views Hardware» more  SAT 2009»
14 years 9 days ago
Boundary Points and Resolution
We use the notion of boundary points to study resolution proofs. Given a CNF formula F, a lit(x)-boundary point is a complete assignment falsifying only clauses of F having the sam...
Eugene Goldberg
SAT
2004
Springer
109views Hardware» more  SAT 2004»
13 years 11 months ago
Resolve and Expand
We present a novel expansion based decision procedure for quantified boolean formulas (QBF) in conjunctive normal form (CNF). The basic idea is to resolve existentially quantifie...
Armin Biere