Translating Basic Metric Temporal Logic Formulas into Promela

Abstract

To formally verify the real-time system using model checking technique, two necessary elements are required, the real-time system model and its expected real-time properties. In order to specify these real-time properties, an appropriate extended logic system, to cope with quantitative of time constraints is needed. We select one of the most popular real-time logic systems, called Metric Temporal Logic (MTL) to specify our mentioned real-time properties. However, the real-time properties defined in MTL are still not relevant to SPIN model checker. In this paper, we propose a novel scheme to translate the basic MTL formulas into Promela and LTL formulas as to be relevantly used in SPIN, in terms of Promela’s inline definitions and macro commands. The punctuality of the formulas is preserved during the translation. Practically, the basic timing constraints eventually and always operators of MTL are focused, and the translation of MTL formulas of the real-time safety property patterns is demonstrated.