Gurobi 5.0.1 (linux64) logging started Sun Nov 18 03:35:21 2012 Optimize a model with 373 rows, 264 columns and 1194 nonzeros Presolve time: 0.00s Presolved: 373 rows, 264 columns, 1194 nonzeros Variable types: 0 continuous, 264 integer (264 binary) Found heuristic solution: objective 85.0000000 Root relaxation: objective 0.000000e+00, 102 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 78 85.00000 0.00000 100% - 0s H 0 0 74.0000000 0.00000 100% - 0s H 0 0 69.0000000 0.00000 100% - 0s 0 0 0.66667 0 80 69.00000 0.66667 99.0% - 0s 0 0 0.74390 0 81 69.00000 0.74390 98.9% - 0s 0 0 0.76923 0 81 69.00000 0.76923 98.9% - 0s 0 0 0.84848 0 80 69.00000 0.84848 98.8% - 0s H 0 0 67.0000000 0.84848 98.7% - 0s 0 0 0.87143 0 81 67.00000 0.87143 98.7% - 0s H 0 0 66.0000000 0.87143 98.7% - 0s 0 0 0.89310 0 84 66.00000 0.89310 98.6% - 0s 0 0 0.90909 0 82 66.00000 0.90909 98.6% - 0s 0 0 0.93499 0 84 66.00000 0.93499 98.6% - 0s 0 0 0.97705 0 86 66.00000 0.97705 98.5% - 0s 0 0 0.99552 0 89 66.00000 0.99552 98.5% - 0s 0 0 1.00971 0 85 66.00000 1.00971 98.5% - 0s 0 0 1.01350 0 89 66.00000 1.01350 98.5% - 0s 0 2 1.03228 0 89 66.00000 1.03228 98.4% - 0s H 27 27 60.0000000 4.15596 93.1% 33.0 0s * 52 50 36 54.0000000 4.15596 92.3% 23.0 0s * 89 63 22 44.0000000 4.23864 90.4% 24.4 0s * 168 112 17 41.0000000 7.28000 82.2% 24.6 0s * 499 273 24 40.0000000 14.11429 64.7% 20.7 0s * 1116 442 32 39.0000000 16.81250 56.9% 23.7 1s * 4933 1019 33 38.0000000 25.80000 32.1% 22.6 4s 5302 1022 36.57143 25 126 38.00000 26.12727 31.2% 22.7 5s H 7156 852 36.0000000 28.00000 22.2% 22.7 6s Explored 9794 nodes (218118 simplex iterations) in 8.48 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 3.600000000000e+01, best bound 3.600000000000e+01, gap 0.0%