Verification and falsification of programs with loops using predicate abstraction

Author:

Kroening Daniel1,Weissenbacher Georg12

Affiliation:

1. Computing Laboratory, Oxford University, Wolfson Building, Parks Road, OX1 3QD, Oxford, UK

2. Computer Systems Institute, ETH Zurich, Zurich, Switzerland

Abstract

Abstract Predicate abstraction is a major abstraction technique for the verification of software. Data is abstracted by means of Boolean variables, which keep track of predicates over the data. In many cases, predicate abstraction suffers from the need for at least one predicate for each iteration of a loop construct in the program. We propose to extract looping counterexamples from the abstract model, and to parametrise the simulation instance in the number of loop iterations. We present a novel technique that speeds up the detection of long counterexamples as well as the verification of programs with loops.

Publisher

Association for Computing Machinery (ACM)

Subject

Theoretical Computer Science,Software

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