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VERCORS

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Verification of Concurrent Data Structures

Increasing performance demands, application complexity and explicit multi-core parallelism makes concurrency omnipresent in software applications. However, due to the complex interferences between threads in an application, concur... ver más

31/01/2016

UNIVERSITEIT TWENT...

1M€

Presupuesto del proyecto: 1M€

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UNIVERSITEIT TWENTE No se ha especificado una descripción o un objeto social para esta compañía.

TRL 4-5

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Financiación concedida El organismo FP7 notifico la concesión del proyecto el día 2016-01-31 No tenemos la información de la convocatoria

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Líder del proyecto

UNIVERSITEIT TWENTE No se ha especificado una descripción o un objeto social para esta compañía.

TRL 4-5

Presupuesto del proyecto 1M€

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Descripción del proyecto Increasing performance demands, application complexity and explicit multi-core parallelism makes concurrency omnipresent in software applications. However, due to the complex interferences between threads in an application, concurrent software is also notoriously hard to get correct. Instead of spending large amounts of money to fix incorrect software, formal techniques are needed to reason about the behaviour of concurrent programs. In earlier work, we developed a variant of permission-based separation logic that is particularly suited to reason about multithreaded Java programs with dynamic thread creation and termination, and reentrant locks. The VerCors project will extend expressiveness of the logic, to specify and verify concurrent data structures. The verification logic will be parameterised over the locking policy, so that a high-level specification of the behaviour of a data structure can be reused for different implementations. Thus the implementation of a concurrent data structure can be changed, without affecting correctness of the applications using it. The logic will also be parameterised with concurrency and synchronisation primitives, so that a logic for a different programming language can be defined as an instance of the general logic. It will also be adapted to reason about programs with benign data races, i.e., data races where the same value is written simultaneously by different threads. Also techniques to generate part of the specifications automatically will be developed. Finally, the logic will be adapted to a distributed setting, where data consistency between the different sites has to be maintained. All results will be integrated in a tool set that generates and proves proof obligations automatically. It will be validated on realistic case studies.

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