نبذة مختصرة : Runtime verification (RV) is an effective technique for dynamically monitoring, even after deployment, properties that could be hardly verified statically. To this aim, specification formalims for RV have to reconcile expressive power and monitoring efficiency. We present an event calculus which provides a basis for the semantics and the implementation of RML, a domain specific language (DSL) for RV. The semantics of the calculus is based on a deterministic reduction strategy which allows concise specifications of non context-free properties, and their efficient verification at runtime.
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