More motivation for model checking ISSTA 1998 (March), Model Checking Without a Model:An Analysis of the Heart- Beat Monitor of a Telephone Switch using.

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Presentation transcript:

More motivation for model checking ISSTA 1998 (March), Model Checking Without a Model:An Analysis of the Heart- Beat Monitor of a Telephone Switch using VeriSoft, by 3 researchers from Lucent and Bell Labs.

Abstract VeriSoft a tool for systematically exploring state spaces of systems composed of several concurrent processes written in full-fledged programing languages. State space: directed graph represents combined behavior of concurrent components. VeriSoft detects coordination problems. Executes thousands of tests per minute.

Abstract Application to be tested: Heart-Beat Monitor (HBM) of a telephone switch. Used for faster routing of data. Discuss steps of analysis of HBM. No modeling was necessary: only a few hours up to tests instead of several days or weeks.

Introduction Systematic state exploration, e.g. temporal- logic model-checking, attracting growing attention. Existing tools restricted to explore the state space of an abstract description of the system.