Gurobi 5.0.1 (linux64) logging started Fri Nov 16 19:40:40 2012 Optimize a model with 10400 rows, 17030 columns and 47710 nonzeros Presolve removed 298 rows and 4940 columns Presolve time: 0.20s Presolved: 10102 rows, 12090 columns, 42120 nonzeros Variable types: 0 continuous, 12090 integer (12090 binary) Found heuristic solution: objective 40.0000000 Found heuristic solution: objective 3.0000000 Root relaxation: cutoff, 13331 iterations, 0.83 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 cutoff 0 3.00000 2.00000 33.3% - 1s Explored 0 nodes (13331 simplex iterations) in 1.06 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 3.000000000000e+00, best bound 3.000000000000e+00, gap 0.0%