Gurobi 5.0.1 (linux64) logging started Sun Nov 18 04:00:10 2012 Optimize a model with 379 rows, 273 columns and 1218 nonzeros Presolve time: 0.00s Presolved: 379 rows, 273 columns, 1218 nonzeros Variable types: 0 continuous, 273 integer (273 binary) Found heuristic solution: objective 86.0000000 Root relaxation: objective 0.000000e+00, 138 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 84 86.00000 0.00000 100% - 0s H 0 0 62.0000000 0.00000 100% - 0s 0 0 0.80769 0 85 62.00000 0.80769 98.7% - 0s 0 0 1.13215 0 87 62.00000 1.13215 98.2% - 0s 0 0 1.54873 0 89 62.00000 1.54873 97.5% - 0s 0 0 1.55589 0 89 62.00000 1.55589 97.5% - 0s H 0 0 54.0000000 1.55589 97.1% - 0s H 0 0 50.0000000 1.55589 96.9% - 0s 0 2 1.57326 0 89 50.00000 1.57326 96.9% - 0s H 27 27 49.0000000 3.34231 93.2% 39.0 0s H 54 40 45.0000000 3.34231 92.6% 25.9 0s * 104 64 32 41.0000000 3.34513 91.8% 25.2 0s * 195 121 21 38.0000000 7.58580 80.0% 29.2 0s * 528 271 17 37.0000000 14.64918 60.4% 28.4 0s * 997 420 28 36.0000000 16.65385 53.7% 30.1 1s H 2279 584 35.0000000 16.65385 52.4% 28.8 2s 4309 850 cutoff 23 35.00000 19.90323 43.1% 28.1 5s 9574 581 32.12329 21 125 35.00000 25.71429 26.5% 27.5 10s Explored 11952 nodes (322142 simplex iterations) in 11.90 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 3.500000000000e+01, best bound 3.500000000000e+01, gap 0.0%