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- Carlos Ansótegui, Miquel Bofill, Felip Manyà, Mateu Villaret
- ISMVL
- 2012

There is a relatively large number of papers dealing with complexity and proof theory issues of infinitely-valued logics. Nevertheless, little attention has been paid so far to the development of efficient solvers for such logics. In this paper we show how the technology of Satisfiability Modulo Theories (SMT) can be used to build efficient automated… (More)

- Miquel Bofill, Cristina Borralleras, Enric Rodríguez-Carbonell, Albert Rubio
- J. Log. Comput.
- 2013

In most termination tools two ingredients, namely recursive path orderings (RPO) and polynomial interpretation orderings (POLO), are used in a consecutive disjoint way to solve the final constraints generated from the termination problem. In this paper we present a simple ordering that combines both RPO and POLO and defines a family of orderings that… (More)

The Resource-Constrained Project Scheduling Problem (RCPSP) and some of its extensions have been widely studied. Many approaches have been considered to solve this problem: constraint programming (CP), Boolean satisfiability (SAT), mixed integer linear programming (MILP), branch and bound algorithms (BB) and others. In this paper, we present a new approach… (More)

- Miquel Bofill, Jordi Coll, Josep Suy, Mateu Villaret
- 2016 IEEE 28th International Conference on Tools…
- 2016

The Multi-Mode Resource-Constrained Project Scheduling Problem (MRCPSP) is a generalization of the well known Resource-Constrained Project Scheduling Problem (RCPSP). The most common exact approaches for solving this problem are based on branch-and-bound algorithms, mixed integer linear programming and Boolean satisfiability (SAT). In this paper, we present… (More)

- Miquel Bofill, Josep Suy, Mateu Villaret
- SAT
- 2010

SAT Modulo Theories (SMT) consists of deciding the satisfiability of a formula with respect to a decidable background theory, such as linear integer arithmetic, bit-vectors, etc, in first-order logic with equality. SMT has its roots in the field of verification. It is known that the SAT technology offers an interesting, efficient and scalable method for… (More)

The extensional theory of arrays is one of the most important ones for applications of SAT Modulo Theories (SMT) to hardware and software verification. Here we present a new T -solver for arrays in the context of the DPLL(T ) approach to SMT. The main characteristics of our solver are: (i) no translation of writes into reads is needed, (ii) there is no… (More)

- Miquel Bofill, Miquel Palahí, Josep Suy, Mateu Villaret
- Constraints
- 2012

Due to significant advances in SAT technology in the last years, its use for solving constraint satisfaction problems has been gaining wide acceptance. Solvers for satisfiability modulo theories (SMT) generalize SAT solving by adding the ability to handle arithmetic and other theories. Although there are results pointing out the adequacy of SMT solvers for… (More)

- Miquel Bofill, Guillem Godoy
- ICALP
- 2001

A crucial way for reducing the search space in automated deduction are the so-called selection strategies: in each clause, the subset of selected literals are the only ones involved in inferences. For rst-order Horn clauses without equality, resolution is complete with an arbitrary selection of one single literal in each clause dN96]. For Horn clauses with… (More)

- Miquel Bofill, Guillem Godoy, Robert Nieuwenhuis, Albert Rubio
- LICS
- 1999

All current completeness results for ordered paramodulation require the term ordering to be well-founded, monotonic and total(izable) on ground terms. Here we introduce a new proof technique where the only properties required for are well-foundedness and the subterm property1. The technique is a relatively simple and elegant application of some fundamental… (More)