Papers › Symbolic Execution Game Semantics

Symbolic Execution Game Semantics

21 Feb 2020arXiv:2002.09115links table onlyarchive 2025-07-28

Yu-Yang Lin, Nikos Tzevelekos

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We present a framework for symbolically executing and model checking higher-order programs with external (open) methods. We focus on the client-library paradigm and in particular we aim to check libraries with respect to any definable client. We combine traditional symbolic execution techniques with operational game semantics to build a symbolic execution semantics that captures arbitrary external behaviour. We prove the symbolic semantics to be sound and complete. This yields a bounded technique by imposing bounds on the depth of recursion and callbacks. We provide an implementation of our technique in the K framework and showcase its performance on a custom benchmark based on higher-order coding errors such as reentrancy bugs.

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