Rumur is a model checker, a formal verification tool for proving safety and security properties of systems represented as state machines. It is based on a previous tool, CMurphi, and intended to be close to a drop-in replacement. Rumur takes the same input format as CMurphi, the Murphi modelling language, with some extensions and generates a C program that implements a verifier. WWW: https://github.com/Smattr/rumur