Combining Preorder and Postorder Resolution in a Satisfiability Solver
نویسندگان
چکیده
منابع مشابه
Combining Preorder and Postorder Resolution in a Satisfiability Solver
Recently, the classical backtracking-search satis ability algorithm of Davis, Putnam, Loveland and Logemann (DPLL) has been enhanced in two distinct directions: with more advanced reasoning methods, or with con ict-directed back-jumping (CBJ). Previous methods used one idea or the other, but not both (except that CBJ has been combined with the unit-clause rule). The diÆculty is that more advanc...
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In many applications the desired outcome of satisfiability checking is that the formula is unsatisfiable: A satisfying assignment essentially exhibits a bug and unsatisfiability implies a lack of bugs, at least for the property being verified. Current high-performance satisfiability checkers are unable to provide proof of unsatisfiability. Since bugs have been discovered in many solvers long af...
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An efficient computational method is presented for state space analysis of singular systems via Haar wavelets. Singular systems are those in which dynamics are governed by a combination of algebraic and differential equations. The corresponding differential-algebraic matrix equation is converted to a generalized Sylvester matrix equation by using Haar wavelet basis. First, an explicit expressio...
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Binary trees are essential structures in Computer Science. The leaf (leaves) of a binary tree is one of the most significant aspects of it. In this study, we prove that the order of a leaf (leaves) of a binary tree is the same in the main tree traversals; preorder, inorder, and postorder. Then, we prove that given the preorder and postorder traversals of a binary tree, the leaf (leaves) of a bi...
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ژورنال
عنوان ژورنال: Electronic Notes in Discrete Mathematics
سال: 2001
ISSN: 1571-0653
DOI: 10.1016/s1571-0653(04)00317-8