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Computer Science > Software Engineering

arXiv:1606.00502 (cs)
[Submitted on 1 Jun 2016]

Title:Program Repair by Stepwise Correctness Enhancement

Authors:Nafi Diallo (NJIT, Newark NJ), Wided Ghardallou (FST, Tunis, Tunisia), Ali Mili (NJIT, Newark NJ)
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Abstract:Relative correctness is the property of a program to be more-correct than another with respect to a given specification. Whereas the traditional definition of (absolute) correctness divides candidate program into two classes (correct, and incorrect), relative correctness arranges candidate programs on the richer structure of a partial ordering. In other venues we discuss the impact of relative correctness on program derivation, and on program verification. In this paper, we discuss the impact of relative correctness on program testing; specifically, we argue that when we remove a fault from a program, we ought to test the new program for relative correctness over the old program, rather than for absolute correctness. We present analytical arguments to support our position, as well as an empirical argument in the form of a small program whose faults are removed in a stepwise manner as its relative correctness rises with each fault removal until we obtain a correct program.
Comments: In Proceedings PrePost 2016, arXiv:1605.08096
Subjects: Software Engineering (cs.SE); Discrete Mathematics (cs.DM); Logic in Computer Science (cs.LO); Programming Languages (cs.PL)
Cite as: arXiv:1606.00502 [cs.SE]
  (or arXiv:1606.00502v1 [cs.SE] for this version)
  https://doi.org/10.48550/arXiv.1606.00502
Journal reference: EPTCS 208, 2016, pp. 1-15
Related DOI: https://doi.org/10.4204/EPTCS.208.1

Submission history

From: EPTCS [view email] [via EPTCS proxy]
[v1] Wed, 1 Jun 2016 23:59:02 UTC (26 KB)
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