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In this paper we present ShapEx, a tool that generates random behaviors from shape expressions, a formal specification language for describing sophisticated temporal behaviors of CPS. The tool samples a random behavior in two steps: (1) it first explores the space of qualitative parameterized shapes and then (2) instantiates parameters by sampling a possibly non-linear constraint. We implement several sampling strategies in the tool that we present in the paper and demonstrate its applicability on two use scenarios.
sampling, specification language, testing
sampling, specification language, testing
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