Gurobi 5.0.1 (linux64) logging started Sat Nov 17 20:15:44 2012 Optimize a model with 371 rows, 213 columns and 1138 nonzeros Presolve time: 0.00s Presolved: 371 rows, 213 columns, 1138 nonzeros Variable types: 0 continuous, 213 integer (213 binary) Found heuristic solution: objective 95.0000000 Root relaxation: objective 0.000000e+00, 58 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 28 95.00000 0.00000 100% - 0s H 0 0 94.0000000 0.00000 100% - 0s H 0 0 93.0000000 0.00000 100% - 0s H 0 0 88.0000000 0.00000 100% - 0s 0 0 0.89320 0 43 88.00000 0.89320 99.0% - 0s H 0 0 87.0000000 0.89320 99.0% - 0s 0 0 0.96154 0 30 87.00000 0.96154 98.9% - 0s 0 0 1.03846 0 30 87.00000 1.03846 98.8% - 0s 0 0 1.03846 0 30 87.00000 1.03846 98.8% - 0s 0 0 1.03846 0 30 87.00000 1.03846 98.8% - 0s 0 0 1.03846 0 30 87.00000 1.03846 98.8% - 0s H 0 0 84.0000000 1.03846 98.8% - 0s 0 2 1.22788 0 30 84.00000 1.22788 98.5% - 0s * 261 145 19 83.0000000 20.12308 75.8% 28.8 0s * 266 146 20 82.0000000 20.12308 75.5% 28.4 0s * 328 167 18 80.0000000 21.17949 73.5% 27.5 0s * 481 238 17 79.0000000 26.89349 66.0% 27.3 0s * 482 235 17 78.0000000 26.89349 65.5% 27.3 0s * 598 278 20 77.0000000 30.92308 59.8% 27.1 0s H 734 302 76.0000000 32.92308 56.7% 27.2 0s H 761 294 75.0000000 32.92308 56.1% 27.8 0s H 2894 450 74.0000000 48.87912 33.9% 26.1 2s * 3381 478 24 73.0000000 50.35000 31.0% 25.6 3s 6334 413 61.00000 19 116 73.00000 57.15789 21.7% 24.1 5s Cutting planes: Gomory: 1 Mod-K: 2 Explored 8759 nodes (201447 simplex iterations) in 6.53 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.300000000000e+01, best bound 7.300000000000e+01, gap 0.0%