Refinement and Verification of Responsive Control Systems.
ABZ(2020)
摘要
Statechart notations with ‘run to completion’ semantics, are popular with engineers for designing controllers that respond to events in the environment with a sequence of state transitions. However, they lack formal refinement and rigorous verification methods.
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, on the other hand, is based on refinement from an initial abstraction and is designed to make formal verification by automatic theorem provers feasible. We introduce a notion of refinement into a ‘run to completion’ statechart modelling notation, and leverage
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tool support for theorem proving. We describe the difficulties in translating ‘run to completion’ semantics into
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refinements and suggest a solution. We outline how safety and liveness properties could be verified.
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关键词
control systems,verification
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