Papers › Improving Thread-Modular Abstract Interpretation
Improving Thread-Modular Abstract Interpretation
Michael Schwarz, Simmo Saan, Helmut Seidl, Kalmer Apinis, Julian Erhard, Vesal Vojdani
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We give thread-modular non-relational value analyses as abstractions of a local trace semantics. The semantics as well as the analyses are formulated by means of global invariants and side-effecting constraint systems. We show that a generalization of the analysis provided by the static analyzer Goblint as well as a natural improvement of Antoine Min\'e's approach can be obtained as instances of this general scheme. We show that these two analyses are incomparable w.r.t. precision and provide a refinement which improves on both precision-wise. We also report on a preliminary experimental comparison of the given analyses on a meaningful suite of benchmarks.
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