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Incremental Instance Generation in Local Reasoning

MPG-Autoren
http://pubman.mpdl.mpg.de/cone/persons/resource/persons44687

Jacobs,  Swen
Automation of Logic, MPI for Informatics, Max Planck Society;

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Zitation

Jacobs, S. (2009). Incremental Instance Generation in Local Reasoning. In A. Bouajjani, & O. Maler (Eds.), Computer Aided Verification (pp. 368-382). Berlin: Springer.


Zitierlink: http://hdl.handle.net/11858/00-001M-0000-000F-1A5C-D
Zusammenfassung
Many verification approaches use SMT solvers in some form, and are limited by their incomplete handling of quantified formulas. Local reasoning allows to handle SMT problems involving a certain class of universally quantified formulas in a complete way by instantiation to a finite set of ground formulas. We present a method to generate these instances incrementally, in order to provide a more efficient way of solving these satisfiability problems. The incremental instantiation is guided semantically, inspired by the instance generation approach to first-order theorem proving. Our method is sound and complete, and terminates on both satisfiable and unsatisfiable input after generating a subset of the instances needed in standard local reasoning. Experimental results show that for a large class of examples the incremental approach is substantially more efficient than eager generation of all instances.