INRIA Grenoble-Rhône-Alpes, 655 Avenue de lEurope, Montbonnot, 38334 St Ismier Cedex, France. Pedro.Monteiro@inria.fr|INRIA Grenoble-Rhône-Alpes, 655 Avenue de lEurope, Montbonnot, 38334 St Ismier Cedex, France. Pedro.Monteiro@inria.fr|INRIA Grenoble-Rhône-Alpes, 655 Avenue de lEurope, Montbonnot, 38334 St Ismier Cedex, France. Pedro.Monteiro@inria.fr|INRIA Grenoble-Rhône-Alpes, 655 Avenue de lEurope, Montbonnot, 38334 St Ismier Cedex, France. Pedro.Monteiro@inria.fr|INRIA Grenoble-Rhône-Alpes, 655 Avenue de lEurope, Montbonnot, 38334 St Ismier Cedex, France. Pedro.Monteiro@inria.fr|INRIA Grenoble-Rhône-Alpes, 655 Avenue de lEurope, Montbonnot, 38334 St Ismier Cedex, France. Pedro.Monteiro@inria.fr|INRIA Grenoble-Rhône-Alpes, 655 Avenue de lEurope, Montbonnot, 38334 St Ismier Cedex, France. Pedro.Monteiro@inria.fr