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A method to localize faults in concurrent C programs
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DOI：10.1016/j.jss.2017.03.010.png)
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摘要
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We describe a new approach to localize faults in concurrent programs, which is based on bounded model checking and sequentialization techniques. The main novelty is the idea of reproducing a faulty behavior, in a sequential version of a concurrent program. In order to pinpoint faulty lines, we analyze counter-examples generated by a model checker, to the new instrumented sequential program, and search for a diagnostic value, which corresponds to actual lines in a program. This approach is useful to improve debugging processes for concurrent programs, since it tells which line should be corrected and what values lead to a successful execution. We implemented this approach as a code-to-code transformation from concurrent into non-deterministic sequential programs, which are used as inputs to existing verification tools. Experimental results show that our approach is effective and capable of identifying faults in our benchmark set, which was extracted from the SV-COMP 2016 suite. (C) 2017 Elsevier Inc. All rights reserved.
Keyword:
Concurrent software
Bounded model checking
Fault localization
Non-determinism
Sequentialization
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