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arXiv · 2602.17142

Generating Rely-Guarantee Conditions with the Conditional-Writes Domain

James Tobler·Graeme Smith
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Abstract

Abstract interpretation has been shown to be a promising technique for the thread-modular verification of concurrent programs. Central to this is the generation of interferences, in the form of rely-guarantee conditions, conforming to a user-chosen structure. In this work, we introduce one such structure called the conditional-writes domain, designed for programs where it suffices to establish only the conditions under which particular variables are written to by each thread. We formalise our analysis within a novel abstract interpretation framework that is highly modular and can be easily extended to capture other structures for rely-guarantee conditions. We formalise two versions of our approach and evaluate their implementations on a simple programming language.

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James Tobler, Graeme Smith. 2026-02-19. Generating Rely-Guarantee Conditions with the Conditional-Writes Domain. https://arxiv.org/abs/2602.17142

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