Gurobi 5.0.1 (linux64) logging started Fri Nov 16 15:39:03 2012 Optimize a model with 10224 rows, 5256 columns and 35640 nonzeros Presolve removed 2090 rows and 144 columns Presolve time: 0.20s Presolved: 8134 rows, 5112 columns, 30384 nonzeros Variable types: 0 continuous, 5112 integer (5112 binary) Found heuristic solution: objective 46.0000000 Root relaxation: objective 3.000000e+00, 7730 iterations, 0.78 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 3.00000 0 91 46.00000 3.00000 93.5% - 2s H 0 0 5.0000000 3.00000 40.0% - 2s H 0 0 4.0000000 3.00000 25.0% - 2s 0 0 3.00000 0 113 4.00000 3.00000 25.0% - 3s H 0 0 3.0000000 3.00000 0.0% - 3s Cutting planes: Gomory: 1 Zero half: 1 Explored 0 nodes (24325 simplex iterations) in 3.15 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%