Abstract
In this paper, we present an approach to the interactive verification of statecharts. We use STATEMATE statecharts for the formal specification of safety critical systems and Interval Temporal Logic to formalize the proof conditions. To handle infinite data, complex functions and predicates, we use algebraic specifications.
Our verification approach is a basis for the aim of the project ForMoSA to put safety analysis techniques on formal grounds. As part of this approach, fault tree analysis (FTA) has been formalized yielding conditions that can be verified using the calculus defined in this paper. Verification conditions resulting from the formal FTA of the radio-based level crossing control have been successfully verified.
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Thums, A., Schellhorn, G., Ortmeier, F., Reif, W. (2004). Interactive Verification of Statecharts. In: Ehrig, H., et al. Integration of Software Specification Techniques for Applications in Engineering. Lecture Notes in Computer Science, vol 3147. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-540-27863-4_20
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DOI: https://doi.org/10.1007/978-3-540-27863-4_20
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