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Beschreibung:
Real-life specifications often contain complicated functions. Animation and validation of such functions and specifications is very important. However, such functions pose a major challenge to animation and model checking. Earlier versions of ProB required that functions be explicitly expanded which is prohibitively expensive or impossible. The central idea of this new research is to compile such functions into symbolic closures which are only examined when the function is applied to some particular argument. This enables ProB to successfully animate and model check a new class of specifications, where animation is especially important due to the involved nature of the specification. We will illustrate this new approach on an industrial case study.