# Combining Lists with Non-Stably Infinite Theories

1 MOSEL - Proof-oriented development of computer-based systems
INRIA Lorraine, LORIA - Laboratoire Lorrain de Recherche en Informatique et ses Applications
2 CASSIS - Combination of approaches to the security of infinite states systems
FEMTO-ST - Franche-Comté Électronique Mécanique, Thermique et Optique - Sciences et Technologies (UMR 6174), INRIA Lorraine, LORIA - Laboratoire Lorrain de Recherche en Informatique et ses Applications
Abstract : In program verification one has often to reason about lists over elements of a given nature. Thus, it becomes important to be able to combine the theory of lists with a generic theory $T$ modeling the elements. This combination can be achieved using the Nelson-Oppen method only if $T$ is stably infinite. The goal of this paper is to relax the stable-infiniteness requirement. More specifically, we provide a new method that is able to combine the theory of lists with any theory $T$ of the elements, regardless of whether $T$ is stably infinite or not. The crux of our combination method is to guess an arrangement over a set of variables that is larger than the one considered by Nelson and Oppen. Furthermore, our results entail that it is also possible to combine $T$ with the more general theory of lists with a length function.
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Conference papers

Cited literature [23 references]

https://hal.inria.fr/inria-00000481
Contributor : Pascal Fontaine <>
Submitted on : Friday, October 21, 2005 - 6:00:04 PM
Last modification on : Wednesday, October 14, 2020 - 4:03:15 AM
Long-term archiving on: : Thursday, April 1, 2010 - 10:53:09 PM

### Citation

Pascal Fontaine, Silvio Ranise, Calogero Zarba. Combining Lists with Non-Stably Infinite Theories. 11th International Conference on Logic for Programming, Artificial Intelligence, and Reasoning (LPAR'04), Mar 2005, Montevideo/Uruguay, pp.51--66, ⟨10.1007/b106931⟩. ⟨inria-00000481⟩

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