Combining Interval Arithmetic and Three-Valued Temporal Logics for the Verification of Analog Systems.

We deal with the problem of designing suitable languages for the modeling and the automatic verification of properties over analog circuits. To this purpose, we suitably enrich classical temporal logics with basic formulæ allowing to model arbitrary functions relating analog variables. We show how to accomplish the task of automatically check the resulting CTLf formulæ on analog circuits. To this purpose, we extend to the analog context a number of techniques for the abstraction and the verification of digital systems, based on three-valued temporal logics.