Abstract
The (linear) failure semantics is a well known model for the theoretical version of Hoare's CSP. We generalize this semantics by taking steps (i.e. multisets of simultaneously occurring actions) instead of single actions as the basic execution unit. Hence opposed to the linear semantics, where parallelism is modelled as arbitrary interleaving in order to avoid technical complication, the step failure semantics models true parallelism and is equally easy to manage. Opposed to the linear model here divergence is treated uniformly.
The relation to the linear semantics can be established using our newly introduced deparallelize operator.
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Taubner, D., Vogler, W. (1987). The step failure semantics. In: Brandenburg, F.J., Vidal-Naquet, G., Wirsing, M. (eds) STACS 87. STACS 1987. Lecture Notes in Computer Science, vol 247. Springer, Berlin, Heidelberg. https://doi.org/10.1007/BFb0039618
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DOI: https://doi.org/10.1007/BFb0039618
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