Adaptive Static Analysis via Learning with Bayesian Optimization

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Building a cost-effective static analyzer for real-world programs is still regarded an art. One key contributor to this grim reputation is the difficulty in balancing the cost and the precision of an analyzer. An ideal analyzer should be adaptive to a given analysis task and avoid using techniques that unnecessarily improve precision and increase analysis cost. However, achieving this ideal is highly nontrivial, and it requires a large amount of engineering efforts. In this article, we present a new learning-based approach for adaptive static analysis. In our approach, the analysis includes a sophisticated parameterized strategy that decides, for each part of a given program, whether to apply a precision-improving technique to that part or not. We present a method for learning a good parameter for such a strategy from an existing codebase via Bayesian optimization. The learnt strategy is then used for new, unseen programs. Using our approach, we developed partially flow- and context-sensitive variants of a realistic C static analyzer. The experimental results demonstrate that using Bayesian optimization is crucial for learning from an existing codebase. Also, they show that among all program queries that require flow- or context-sensitivity, our partially flow- and context-sensitive analysis answers 75% of them, while increasing the analysis cost only by 3.3× of the baseline flow- and context-insensitive analysis, rather than 40× or more of the fully sensitive version.
Publisher
ASSOC COMPUTING MACHINERY
Issue Date
2018-12
Language
English
Article Type
Article
Citation

ACM TRANSACTIONS ON PROGRAMMING LANGUAGES AND SYSTEMS, v.40, no.4

ISSN
0164-0925
DOI
10.1145/3121135
URI
http://hdl.handle.net/10203/248748
Appears in Collection
CS-Journal Papers(저널논문)
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