Papers › Proof Generation for CDCL Solvers Using Gauss-Jordan Elimination
Proof Generation for CDCL Solvers Using Gauss-Jordan Elimination
Mate Soos, Randal E. Bryant
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Traditional Boolean satisfiability (SAT) solvers based on the conflict-driven clause-learning (CDCL) framework fare poorly on formulas involving large numbers of parity constraints. The CryptoMiniSat solver augments CDCL with Gauss-Jordan elimination to greatly improve performance on these formulas. Integrating the TBUDDY proof-generating BDD library into CryptoMiniSat enables it to generate unsatisfiability proofs when using Gauss-Jordan elimination. These proofs are compatible with standard, clausal proof frameworks.
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