OSVAuto:操作系统功能规格的半自动验证器

Yulun Wu, Bohua Zhan, Bican Xia
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引用次数: 0

摘要

我们介绍了一种用于半自动验证操作系统模块功能规格的工具的设计和实现。这种验证任务传统上是在交互式定理证明器中完成的,模块的功能是在抽象和具体层面上使用结构、代数数据类型、数组、映射等数据指定的。在这项工作中,我们为 SMT 提供了这些常见数据类型的编码,从而可以将验证条件简化为适合 SMT 求解器的形式。将 SMT 求解器与战术语言结合使用,可以对规范进行半自动验证。我们应用该工具验证了 uC-OS/II 操作系统关键部分的功能规范,这是在 Coq 中对该系统进行全面验证的早期工作的基础上进行的。我们展示了由于自动化水平的提高而大大减少的人工工作量。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
OSVAuto: semi-automatic verifier for functional specifications of operating systems
We present the design and implementation of a tool for semi-automatic verification of functional specifications of operating system modules. Such verification tasks are traditionally done in interactive theorem provers, where the functionalities of the module are specified at abstract and concrete levels using data such as structures, algebraic datatypes, arrays, maps and so on. In this work, we provide encodings to SMT for these commonly occurring data types. This allows verification conditions to be reduced into a form suitable for SMT solvers. The use of SMT solvers combined with a tactic language allows semi-automatic verification of the specification. We apply the tool to verify functional specification for key parts of the uC-OS/II operating system, based on earlier work giving full verification of the system in Coq. We demonstrate a large reduction in the amount of human effort due to increased level of automation.
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