%0 Conference Paper
%A Nanevski, Aleksandar
%A Banerjee, Anindya
%A Delbianco, Germán Andrés
%A Fábregas, Ignacio
%A Fábregas Alfaro, Ignacio
%T Specifying concurrent programs in separation logic: morphisms and simulations
%D 2019
%U https://hdl.handle.net/20.500.14352/98261
%X In addition to pre- and postconditions, program specifications in recent separation logics for concurrency have employed an algebraic structure of resourcesÐa form of state transition systemsÐto 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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