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The analysis and verification of hybrid automata (HA) models against richformal properties can be a challenging task. Existing methods and tools canmainly reason whether a given property is satisfied or violated. However, suchqualitative answers might not provide sufficient information about the modelbehaviors. This paper presents the ForFET$^{SMT}$ tool which can be used toreason quantitatively about such properties. It employs feature automata andcan evaluate quantitative property corners of HA. ForFET$^{SMT}$ uses twothird-party formal verification tools as its backbone: the SpaceEx reachabilitytool and the SMT solver dReach/dReal. Herein, we describe the design andimplementation of ForFET$^{SMT}$ and present its functionalities and modules.To improve the usability of the tool for non-expert users, we also provide alist of quantitative property templates.

Quantitative Corner Case Feature Analysis of Hybrid Automata with ForFET$^{SMT}$