Tomasco, Ermenegildo, Nguyen Lam, Truc, Fischer, Bernd, La Torre, Salvatore and Parlato, Gennaro
Embedding weak memory models within eager sequentialization University of Southampton 29pp. , Southampton, GB
Sequentialization is one of the most promising approaches for the symbolic analysis of concurrent programs. However, existing sequentializations assume sequential consistency, which modern hardware architectures no longer guarantee. In this paper we describe an approach to embed weak memory models within eager sequentializations (a la Lal/Reps). Our approach is based on the separation of intra-thread computations from inter-thread communications by means of a shared memory abstraction (SMA). We give details of SMA implementations for the SC, TSO, and PSO memory models that are based on the idea of individual memory unwindings, and sketch an extension to the Power memory model. We use our approach to implement a new, efficient BMC-based bug finding tool for multi-threaded C programs under SC, TSO, or PSO based on these SMAs, and show experimentally that it is competitive to existing tools.
||Electronic & Software Systems
||03 Nov 2016 00:12
||10 Mar 2017 11:05
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