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Formal program verification is a powerful technique to ensure the correctness of programs. To perform this technique, one oftentimes needs to manually specify assertions, which is a time-consuming and error-prone task. Generating assertions automatically can significantly improve the usability of formal program verification. To decide where an assertion is needed heavily and which value range of the...
Temporal induction is one of the most popular SAT-based model checking techniques. It consists of two parts, the base case and the induction step. With the search length increment, both parts generate a sequence of SAT problems. This paper focuses on learnt clause replication and reuse in incremental temporal induction. Firstly, with the aid of assumption literals, we present an alternative clause...
Temporal induction is a SAT-based model checking technique. We prove that the SAT instances generated by its induction rule can be reduced to the so called Incremental CNFs. A new DPLL procedure is customized for Incremental CNFs, so that the intermediate results in solving previous instances, including the learnt clauses and the search tree, can be reused in solving the next instance. To the best...
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