Abstract
This talk describes how a combination of symbolic computation techniques with first-order theorem proving can be used for solving some challenges of automating program analysis, in particular for generating and proving properties about the logically complex parts of software. The talk will first present how computer algebra methods, such as Gröbner basis computation, quantifier elimination and algebraic recurrence solving, help us in inferring properties of program loops with non-trivial arithmetic. Typical properties inferred by our work are loop invariants and expressions bounding the number of loop iterations. The talk will then describe our work to generate first-order properties of programs with unbounded data structures, such as arrays. For doing so, we use saturation-based first-order theorem proving and extend first-order provers with support for program analysis. Since program analysis requires reasoning in the combination of first-order theories of data structures, the talk also discusses new features in first-order theorem proving, such as inductive reasoning and built-in boolean sort. These extensions allow us to express program properties directly in first-order logic and hence use further first-order theorem provers to reason about program properties.
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Acknowledgments
The work described in this talk is based on joint work with a number of authors, including Tudor Jebelean (RISC-Linz), Evgeny Kotelnikov and Simon Robillard (Chalmers University of Technology), and Andrei Voronkov (The University of Manchester and Chalmers University of Technology).
The author acknowledges funding from the ERC Starting Grant 2014 SYMCAR 639270, the Wallenberg Academy Fellowship 2014, the Swedish VR grant D0497701 and the Austrian research project FWF S11409-N23
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Kovács, L. (2016). Symbolic Computation and Automated Reasoning for Program Analysis. In: Ábrahám, E., Huisman, M. (eds) Integrated Formal Methods. IFM 2016. Lecture Notes in Computer Science(), vol 9681. Springer, Cham. https://doi.org/10.1007/978-3-319-33693-0_2
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