Gurobi 5.0.1 (linux64) logging started Fri Nov 16 18:02:37 2012 Optimize a model with 7232 rows, 12882 columns and 34126 nonzeros Presolve removed 37 rows and 4181 columns Presolve time: 0.14s Presolved: 7195 rows, 8701 columns, 29945 nonzeros Variable types: 0 continuous, 8701 integer (8701 binary) Found heuristic solution: objective 35.0000000 Found heuristic solution: objective 2.0000000 Root relaxation: cutoff, 5623 iterations, 0.15 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 cutoff 0 2.00000 1.00000 50.0% - 0s Explored 0 nodes (5623 simplex iterations) in 0.30 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 2.000000000000e+00, best bound 2.000000000000e+00, gap 0.0%