Tuning the Alt-Ergo SMT Solver for B Proof Obligations

Sylvain Conchon (1, 2) , Mohamed Iguernelala (3)

1 TOCCATA - Formally Verified Programs, Certified Tools and Numerical Computations
2 LRI - Laboratoire de Recherche en Informatique
3 OCamlPro SAS

In this paper, we present recent developments on the Alt-Ergo SMT-solver to efficiently discharge proof obligations (PO) generated by Atelier B. This includes a new plugin architecture to facilitate experiments with different SAT engines, new heuristics to handle quantified formulas, and important modifications in its internal data structures to boost performances of core decision procedures. Benchmarks realized on more than 10,000 PO generated from industrial B projects show significant improvements.

Mots clés: SMT solvers; B Proof Obligations; B Method

Domaines: Logique en informatique [cs.LO]

Sylvain Conchon, Mohamed Iguernelala. Tuning the Alt-Ergo SMT Solver for B Proof Obligations. ABZ, Jun 2014, Toulouse, France. ⟨hal-01093000⟩