A hybrid SAT-based decision procedure for separation logic with uninterpreted functions

Proceedings 2003. Design Automation Conference (IEEE Cat. No.03CH37451) Pub Date : 2003-06-02 DOI:10.1145/775832.775945

S. Seshia, Shuvendu K. Lahiri, R. Bryant

引用次数: 91

Abstract

SAT-based decision procedures for quantifier-free fragments of first-order logic have proved to be useful in formal verification. These decisions procedures are either based on encoding atomic subformulas with Boolean variables, or by encoding integer variables as bit-vectors. Based on evaluating these two encoding methods on a diverse set of hardware and software benchmarks, we conclude that neither method is robust to variations in formula characteristics. We therefore propose a new hybrid technique that combines the two methods. We give experimental results showing that the hybrid method can significantly outperform either approach as well as other decision procedures.

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一个基于sat的混合决策过程，用于分离逻辑和未解释的函数

基于sat的一阶逻辑无量词片段的决策程序已被证明是形式化验证的有用方法。这些决策过程要么基于用布尔变量编码原子子公式，要么基于将整数变量编码为位向量。基于在不同的硬件和软件基准测试中评估这两种编码方法，我们得出结论，这两种方法对公式特征的变化都没有鲁棒性。因此，我们提出了一种新的混合技术，将这两种方法结合起来。我们给出的实验结果表明，混合方法可以显著优于任何一种方法以及其他决策方法。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Proceedings 2003. Design Automation Conference (IEEE Cat. No.03CH37451)

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