May 1999
Abstract:The Ravenscar tasking profile for Ada95 has been designed to allow implementation of safety critical systems in Ada. Ravenscar defines a tasking run-time system with deterministic behaviour and low complexity. We provide a formal model of the primitives provided by Ravenscar. This formal model can be used to verify safety properties of applications targeting a Ravenscar-compliant run-time system. As an illustration of this, we model a sample application and formally verify its correctness using the real-time model checker UPPAAL.
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