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Concolic Execution and Test Case Generation in Prolog

  • Germán VidalEmail author
Conference paper
Part of the Lecture Notes in Computer Science book series (LNCS, volume 8981)

Abstract

Symbolic execution extends concrete execution by allowing symbolic input data and then exploring all feasible execution paths. It has been defined and used in the context of many different programming languages and paradigms. A symbolic execution engine is at the heart of many program analysis and transformation techniques, like partial evaluation, test case generation or model checking, to name a few. Despite its relevance, traditional symbolic execution also suffers from several drawbacks. For instance, the search space is usually huge (often infinite) even for the simplest programs. Also, symbolic execution generally computes an overapproximation of the concrete execution space, so that false positives may occur. In this paper, we propose the use of a variant of symbolic execution, called concolic execution, for test case generation in Prolog. Our technique aims at full statement coverage. We argue that this technique computes an underapproximation of the concrete execution space (thus avoiding false positives) and scales up better to medium and large Prolog applications.

Keywords

Execution Path Symbolic Execution Test Case Generation Symbolic State Program Clause 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

Notes

Acknowledgements

The author gratefully acknowledges the anonymous referees and the participants of LOPSTR 2014 for many useful comments and suggestions. I would also like to thank Fred Mesnard and Etienne Payet for their remarks to improve the paper.

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Copyright information

© Springer International Publishing Switzerland 2015

Authors and Affiliations

  1. 1.MiST, DSICUniversitat Politècnica de ValènciaValenciaSpain

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