Abstract
Automatic controllers are interfacing computer systems and physical systems. Because they are physically interacting with surrounding environments, their misbehavior can critically harm anyone nearby. For their safe operations, it is critical to ensure that their behaviors conform to the specification in normal operational conditions and any hazardous actions due to unexpected operational environments are prevented. In this paper, we introduce a quantitative model checking technique to the design of a controller so that the resulting system satisfies the specification in normal condition. Furthermore, we applied the technique to check and forewarn if a sensor reading now may lead to a violation of the specifications in the future.
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