Gurobi 5.0.1 (linux64) logging started Sun Nov 18 03:19:23 2012 Optimize a model with 203 rows, 163 columns and 668 nonzeros Presolve time: 0.00s Presolved: 203 rows, 163 columns, 668 nonzeros Variable types: 0 continuous, 163 integer (163 binary) Found heuristic solution: objective 47.0000000 Root relaxation: objective 0.000000e+00, 88 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 59 47.00000 0.00000 100% - 0s H 0 0 38.0000000 0.00000 100% - 0s H 0 0 36.0000000 0.00000 100% - 0s H 0 0 35.0000000 0.00000 100% - 0s 0 0 0.47191 0 62 35.00000 0.47191 98.7% - 0s 0 0 0.92517 0 64 35.00000 0.92517 97.4% - 0s 0 0 0.95204 0 66 35.00000 0.95204 97.3% - 0s 0 0 0.95204 0 67 35.00000 0.95204 97.3% - 0s 0 0 0.95204 0 66 35.00000 0.95204 97.3% - 0s H 0 0 32.0000000 0.95204 97.0% - 0s H 0 0 31.0000000 0.95204 96.9% - 0s H 0 0 27.0000000 0.95204 96.5% - 0s H 0 0 25.0000000 0.95204 96.2% - 0s 0 2 1.01850 0 66 25.00000 1.01850 95.9% - 0s H 27 27 21.0000000 3.25141 84.5% 20.3 0s * 41 22 9 16.0000000 3.34794 79.1% 20.6 0s * 52 21 15 15.0000000 3.34794 77.7% 17.6 0s * 143 23 10 13.0000000 6.72628 48.3% 16.6 0s * 154 16 11 12.0000000 6.72628 43.9% 16.5 0s Cutting planes: Gomory: 3 Mod-K: 1 Explored 193 nodes (3600 simplex iterations) in 0.19 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.200000000000e+01, best bound 1.200000000000e+01, gap 0.0%