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On superposition-based satisfiability procedures and their combination

Identifieur interne : 000536 ( PascalFrancis/Curation ); précédent : 000535; suivant : 000537

On superposition-based satisfiability procedures and their combination

Auteurs : Hélène Kirchner [France] ; Silvio Ranise [France] ; Christophe Ringeissen [France] ; DUC KHANH TRAN [France]

Source :

RBID : Pascal:05-0479611

Descripteurs français

English descriptors

Abstract

We study how to efficiently combine satisfiability procedures built by using a superposition calculus with satisfiability procedures for theories, for which the superposition calculus may not apply (e.g., for various decidable fragments of Arithmetic). Our starting point is the Nelson-Oppen combination method, where satisfiability procedures cooperate by exchanging entailed (disjunction of) equalities between variables. We show that the superposition calculus deduces sufficiently many such equalities for convex theories (e.g., the theory of equality and the theory of lists) and disjunction of equalities for non-convex theories (e.g., the theory of arrays) to guarantee the completeness of the combination method. Experimental results on proof obligations extracted from the certification of auto-generated aerospace software confirm the efficiency of the approach. Finally, we show how to make satisfiability procedures built by superposition both incremental and resettable by using a hierarchic variant of the Nelson-Oppen method.
pA  
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A08 01  1  ENG  @1 On superposition-based satisfiability procedures and their combination
A09 01  1  ENG  @1 Theoretical aspects of computing - ICTAC 2005 : Second international colloquium, Hanoi, Vietnam, October 17-21, 2005, proceedings
A11 01  1    @1 KIRCHNER (Hélène)
A11 02  1    @1 RANISE (Silvio)
A11 03  1    @1 RINGEISSEN (Christophe)
A11 04  1    @1 DUC KHANH TRAN
A14 01      @1 LORIA & INRIA-Lorraine @3 FRA @Z 1 aut. @Z 2 aut. @Z 3 aut. @Z 4 aut.
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A21       @1 2005
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A44       @0 0000 @1 © 2005 INIST-CNRS. All rights reserved.
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A60       @1 P @2 C
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C01 01    ENG  @0 We study how to efficiently combine satisfiability procedures built by using a superposition calculus with satisfiability procedures for theories, for which the superposition calculus may not apply (e.g., for various decidable fragments of Arithmetic). Our starting point is the Nelson-Oppen combination method, where satisfiability procedures cooperate by exchanging entailed (disjunction of) equalities between variables. We show that the superposition calculus deduces sufficiently many such equalities for convex theories (e.g., the theory of equality and the theory of lists) and disjunction of equalities for non-convex theories (e.g., the theory of arrays) to guarantee the completeness of the combination method. Experimental results on proof obligations extracted from the certification of auto-generated aerospace software confirm the efficiency of the approach. Finally, we show how to make satisfiability procedures built by superposition both incremental and resettable by using a hierarchic variant of the Nelson-Oppen method.
C02 01  X    @0 001D02A05
C03 01  X  FRE  @0 Décidabilité @5 06
C03 01  X  ENG  @0 Decidability @5 06
C03 01  X  SPA  @0 Decidibilidad @5 06
C03 02  X  FRE  @0 Traitement liste @5 07
C03 02  X  ENG  @0 List processing @5 07
C03 02  X  SPA  @0 Tratamiento lista @5 07
C03 03  X  FRE  @0 Superposition @5 18
C03 03  X  ENG  @0 Superposition @5 18
C03 03  X  SPA  @0 Superposición @5 18
C03 04  X  FRE  @0 Satisfiabilité @5 19
C03 04  X  ENG  @0 Satisfiability @5 19
C03 04  X  SPA  @0 Satisfactibilidad @5 19
C03 05  X  FRE  @0 Disjonction @5 20
C03 05  X  ENG  @0 Disjunction @5 20
C03 05  X  SPA  @0 Disyunción @5 20
C03 06  X  FRE  @0 Certification @5 21
C03 06  X  ENG  @0 Certification @5 21
C03 06  X  SPA  @0 Certificación @5 21
C03 07  X  FRE  @0 Aérospatiale @5 22
C03 07  X  ENG  @0 Aerospace @5 22
C03 07  X  SPA  @0 Aeroespacial @5 22
C03 08  X  FRE  @0 Arithmétique @5 23
C03 08  X  ENG  @0 Arithmetics @5 23
C03 08  X  SPA  @0 Aritmética @5 23
C03 09  X  FRE  @0 Analyse non convexe @5 24
C03 09  X  ENG  @0 Non convex analysis @5 24
C03 09  X  SPA  @0 Análisis no convexo @5 24
N21       @1 339
N44 01      @1 OTO
N82       @1 OTO
pR  
A30 01  1  ENG  @1 ICTAC : international colloquium on theoretical aspects of computing @2 2 @3 Hanoi VNM @4 2005-10-17

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