Date: 26 Jun 2005

Partial model checking with ROBDDs

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This paper introduces a technique for localizing model checking of concurrent state-based systems. The technique, called partial model checking, is fully automatic and performs model checking by gradually specializing the specification with respect to the concurrent components one by one, computing a “concurrent weakest precondition.” Specifications are invariance properties and the concurrent components axe sets of transitions. Both are expressed as predicates represented by Reduced Ordered Binary Decision Diagrams (ROBDDs). The self-reducing properties of ROBDDs are important for the success of the technique.

We describe experimental results obtained on four different examples.