RVHyper: A Runtime Verification Tool for Temporal Hyperproperties

Bernd Finkbeiner, Christopher Hahn, Marvin Stenger, Leander Tentrup

Abstract: We present $$\text {RVHyper}$$ , a runtime verification tool for hyperproperties. Hyperproperties, such as non-interference and observational determinism, relate multiple computation traces with each other. Specifications are given as formulas in the temporal logic $$\text {HyperLTL}$$ , which extends linear-time temporal logic (LTL) with trace quantifiers and trace variables. $$\text {RVHyper}$$ processes execution traces sequentially until a violation of the specification is detected. In this case, a counter example, in the form of a set of traces, is returned. As an example application, we show how $$\text {RVHyper}$$ can be used to detect spurious dependencies in hardware designs.