Process-Algebraic Models of Multi-Writer Multi-Reader Non-Atomic Registers

07/11/2023

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by   Myrthe Spronck, et al.

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We present process-algebraic models of multi-writer multi-reader safe, regular and atomic registers. We establish the relationship between our models and alternative versions presented in the literature. We use our models to formally analyse by model checking to what extent several well-known mutual exclusion algorithms are robust for relaxed atomicity requirements. Our analyses refute correctness claims made about some of these algorithms in the literature.