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arXiv · 1904.07136

Specifying Concurrent Programs in Separation Logic: Morphisms and Simulations

Aleksandar Nanevski·Anindya Banerjee·Germán Andrés Delbianco·Ignacio Fábregas
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Abstract

In addition to pre- and postconditions, program specifications in recent separation logics for concurrency have employed an algebraic structure of resources---a form of state transition system---to describe the state-based program invariants that must be preserved, and to record the permissible atomic changes to program state. In this paper we introduce a novel notion of resource morphism, i.e. structure-preserving function on resources, and show how to effectively integrate it into separation logic, using an associated notion of morphism-specific simulation. We apply morphisms and simulations to programs verified under one resource, to compositionally adapt them to operate under another resource, thus facilitating proof reuse.

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Aleksandar Nanevski, Anindya Banerjee, Germán Andrés Delbianco, Ignacio Fábregas. 2019-04-15. Specifying Concurrent Programs in Separation Logic: Morphisms and Simulations. https://arxiv.org/abs/1904.07136

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