Abstract
We describe a combination of BDDs and superposition theorem proving, called light-weight theorem proving, and its application to the flexible and efficient automation of the reasoning activity required to debug and verify pointer manipulating programs. This class of programs is notoriously challenging to reason about and it is also interesting from a programming point of view since pointers are an important source of bugs. The implementation of our technique (in a system called haRVey) scales up significantly better than state-of-the-art tools such as E (a superposition prover) and Simplify (a prover based on the Nelson and Oppen combination schema of decision procedures which is used in ESC/Java) on a set of proof obligations arising in debugging and verifying C functions manipulating pointers.
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