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arXiv · 2107.00723

Verifying Verified Code

Siddharth Priya·Xiang Zhou·Yusen Su·Yakir Vizel·Yuyan Bao·Arie Gurfinkel
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Abstract

A recent case study from AWS by Chong et al. proposes an effective methodology for Bounded Model Checking in industry. In this paper, we report on a follow up case study that explores the methodology from the perspective of three research questions: (a) can proof artifacts be used across verification tools; (b) are there bugs in verified code; and (c) can specifications be improved. To study these questions, we port the verification tasks for $\texttt{aws-c-common}$ library to SEAHORN and KLEE. We show the benefits of using compiler semantics and cross-checking specifications with different verification techniques, and call for standardizing proof library extensions to increase specification reuse. The verification tasks discussed are publicly available online.

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Siddharth Priya, Xiang Zhou, Yusen Su, Yakir Vizel, Yuyan Bao, Arie Gurfinkel. 2021-07-01. Verifying Verified Code. https://arxiv.org/abs/2107.00723

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