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Executable Analysis using Abstract Interpretation with Circular Linear Progressions

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2 Author(s)
Sen, R. ; Dept. of Comput. Sci. & Autom., Indian Inst. of Sci., Bangalore ; Srikant, Y.N.

We propose a new abstract domain for static analysis of executable code. Concrete states are abstracted using circular linear progressions (CLPs). CLPs model computations using a finite word length as is seen in any real life processor. The finite abstraction allows handling overflow scenarios in a natural and straight-forward manner. Abstract transfer functions have been defined for a wide range of operations which makes this domain easily applicable for analyzing code for a wide range of ISAs. CLPs combine the scalability of interval domains with the discreteness of linear congruence domains. We also present a novel, lightweight method to track linear equality relations between static objects that is used by the analysis to improve precision. The analysis is efficient, the total space and time overhead being quadratic in the number of static objects being tracked.

Published in:

Formal Methods and Models for Codesign, 2007. MEMOCODE 2007. 5th IEEE/ACM International Conference on

Date of Conference:

May 30 2007-June 2 2007

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