Clausal Proofs for Pseudo-Boolean Reasoning

Clausal Proofs for Pseudo-Boolean Reasoning
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伪布尔推理的子句证明

DOI:
10.1007/978-3-030-99524-9_25
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发表时间:
2022
期刊:
International Conference on Tools and Algorithms for the Construction and Analysis of Systems
影响因子:
--
通讯作者:
Heule, Marijn J.
Heule, Marijn J.
中科院分区:
--
文献类型:
--
作者:
Bryant, Randal E.;Heule, Marijn J.

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当使用伪布尔(PB)求解器增强时,布尔可满足性(SAT)求解器可以应用强大的推理方法来确定从输入公式的子句中提取的奇偶性或基数约束的集合何时没有解。通过将PB求解器生成的中间约束转换为有序二元决策图(BDD),基于BDD的证明生成SAT求解器可以生成输入公式不可满足的子句证明。两个求解器一起工作,可以为其他证明生成SAT求解器难以解决的问题生成不可满足性证明。PB求解器有时可以检测到证明可以利用模运算来给出更小的BDD表示,从而缩短证明。
When augmented with a Pseudo-Boolean (PB) solver, a Boolean satisfiability (SAT) solver can apply apply powerful reasoning methods to determine when a set of parity or cardinality constraints, extracted from the clauses of the input formula, has no solution. By converting the intermediate constraints generated by the PB solver into ordered binary decision diagrams (BDDs), a proof-generating, BDD-based SAT solver can then produce a clausal proof that the input formula is unsatisfiable. Working together, the two solvers can generate proofs of unsatisfiability for problems that are intractable for other proof-generating SAT solvers. The PB solver can, at times, detect that the proof can exploit modular arithmetic to give smaller BDD representations and therefore shorter proofs.
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影响因子: --
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DOI: --
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