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Published in:
2007 | OriginalPaper | Chapter
Footprint Analysis: A Shape Analysis That Discovers Preconditions
Authors : Cristiano Calcagno, Dino Distefano, Peter W. O’Hearn, Hongseok Yang
Published in: Static Analysis
Publisher: Springer Berlin Heidelberg
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Existing shape analysis algorithms infer descriptions of data structures at program points, starting from a given precondition. We describe an analysis that does not require any preconditions. It works by attempting to infer a description of only the cells that might be accessed, following the footprint idea in separation logic. The analysis allows us to establish a true Hoare triple for a piece of code, independently of the context in which it occurs and without a whole-program analysis. We present experimental results for a range of typical list-processing algorithms, as well as for code fragments from a Windows device driver.