Gurobi 5.0.1 (linux64) logging started Sun Nov 18 03:20:28 2012 Optimize a model with 181 rows, 155 columns and 605 nonzeros Presolve removed 0 rows and 2 columns Presolve time: 0.00s Presolved: 181 rows, 153 columns, 603 nonzeros Variable types: 0 continuous, 153 integer (152 binary) Found heuristic solution: objective 40.0000000 Root relaxation: objective 0.000000e+00, 94 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 0.00000 0 62 40.00000 0.00000 100% - 0s H 0 0 38.0000000 0.00000 100% - 0s H 0 0 30.0000000 0.00000 100% - 0s 0 0 0.48387 0 63 30.00000 0.48387 98.4% - 0s H 0 0 29.0000000 0.48387 98.3% - 0s 0 0 1.00000 0 64 29.00000 1.00000 96.6% - 0s H 0 0 26.0000000 1.00000 96.2% - 0s 0 0 1.03768 0 65 26.00000 1.03768 96.0% - 0s 0 0 1.08293 0 68 26.00000 1.08293 95.8% - 0s 0 0 1.09076 0 68 26.00000 1.09076 95.8% - 0s 0 0 1.09076 0 68 26.00000 1.09076 95.8% - 0s H 0 0 22.0000000 1.09076 95.0% - 0s H 0 0 19.0000000 1.09076 94.3% - 0s 0 2 1.10152 0 68 19.00000 1.10152 94.2% - 0s * 18 15 15 13.0000000 3.27561 74.8% 28.7 0s * 41 15 14 11.0000000 3.28676 70.1% 19.4 0s * 52 11 8 10.0000000 5.97500 40.2% 18.1 0s Cutting planes: Gomory: 5 Zero half: 1 Explored 73 nodes (1742 simplex iterations) in 0.14 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.000000000000e+01, best bound 1.000000000000e+01, gap 0.0%