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This note introduce a novel method for improving CDCL-based SAT solvers by relaxing backtrack and integrating local search techniques, and we use this 阅读全文
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Typical clause maintenance strategies The clause database reduction scheme is one of a small number of key heuristic mechanisms in a CDCL solver。 译文:子 阅读全文
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变元活跃度计算模式有:VSIDS、基于历史出现时刻与当前冲突时刻距离等 有三个最小堆: // A priority queue of variables ordered with respect to the variable activity. Heap<VarOrderLt> order_hea 阅读全文
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第一种方法:直接采用随机赋值的方法 1.在初始时任意指派(真l_True 或者 假l_False) 2.回溯阶段采用技术,保留原来相位,相位转换交给回溯层变元翻转。 1 // Revert to the state at given level (keeping all assignment at 阅读全文
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This is a new heuristic which is called Core First Unit Propagation in MapleLCMdistCBTcoreFirst sat solver . CFUP ( Core First Unit Propagation) heuri 阅读全文
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walksat2013版本的函数 重点函数之一 1 //cpick means computing break values and pick, this function is adopted for random 4-SAT 2 int cpick_bbreak_gmake() 3 { 4 in 阅读全文