Gurobi 5.0.1 (linux64) logging started Sun Nov 18 02:51:52 2012 Optimize a model with 471 rows, 300 columns and 1475 nonzeros Presolve time: 0.00s Presolved: 471 rows, 300 columns, 1475 nonzeros Variable types: 0 continuous, 300 integer (300 binary) Found heuristic solution: objective 113.0000000 Root relaxation: objective 0.000000e+00, 117 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 65 113.00000 0.00000 100% - 0s H 0 0 97.0000000 0.00000 100% - 0s 0 0 0.73151 0 67 97.00000 0.73151 99.2% - 0s 0 0 0.73151 0 67 97.00000 0.73151 99.2% - 0s 0 0 0.78610 0 67 97.00000 0.78610 99.2% - 0s 0 0 0.78765 0 88 97.00000 0.78765 99.2% - 0s 0 0 0.79702 0 67 97.00000 0.79702 99.2% - 0s 0 0 0.84069 0 67 97.00000 0.84069 99.1% - 0s 0 0 0.85161 0 67 97.00000 0.85161 99.1% - 0s 0 0 0.85161 0 67 97.00000 0.85161 99.1% - 0s 0 0 0.85161 0 67 97.00000 0.85161 99.1% - 0s 0 2 0.87322 0 67 97.00000 0.87322 99.1% - 0s H 54 54 85.0000000 5.95248 93.0% 23.6 0s * 60 60 37 84.0000000 5.95248 92.9% 22.0 0s * 159 134 29 82.0000000 9.85670 88.0% 23.3 0s H 259 206 74.0000000 10.00000 86.5% 23.5 0s H 260 193 71.0000000 10.00000 85.9% 23.6 0s * 396 302 30 70.0000000 13.81818 80.3% 24.7 0s * 1775 683 36 69.0000000 24.95238 63.8% 23.7 2s * 2146 807 34 66.0000000 28.18182 57.3% 23.4 2s H 2439 862 63.0000000 29.13636 53.8% 23.3 3s 3997 1313 58.38776 25 154 63.00000 33.53125 46.8% 22.9 5s 9194 2517 61.15556 27 155 63.00000 38.70000 38.6% 21.8 10s 14821 3386 58.92000 25 155 63.00000 42.07692 33.2% 21.3 15s 20819 4100 55.19231 23 150 63.00000 44.58065 29.2% 20.9 20s 27322 4576 60.86364 27 150 63.00000 46.20000 26.7% 20.7 25s 33813 4902 cutoff 25 63.00000 47.73077 24.2% 20.5 30s 40544 5057 55.88000 24 150 63.00000 49.14634 22.0% 20.3 35s 41308 5078 61.05882 25 160 63.00000 49.25000 21.8% 20.3 44s 41993 5082 52.61538 23 148 63.00000 49.39535 21.6% 20.3 45s H44794 4738 61.0000000 49.89474 18.2% 20.1 47s 47845 4516 cutoff 27 61.00000 50.18519 17.7% 20.0 50s 54996 3864 57.65306 25 152 61.00000 51.28571 15.9% 19.8 55s 61999 2997 59.91837 25 149 61.00000 52.66667 13.7% 19.6 60s 69656 1686 cutoff 26 61.00000 54.48000 10.7% 19.3 65s Cutting planes: Gomory: 1 Mod-K: 6 Explored 73655 nodes (1405978 simplex iterations) in 67.32 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 6.100000000000e+01, best bound 6.100000000000e+01, gap 0.0%