Gurobi 5.0.1 (linux64) logging started Sat Nov 17 22:01:32 2012 Optimize a model with 487 rows, 275 columns and 1490 nonzeros Presolve time: 0.00s Presolved: 487 rows, 275 columns, 1490 nonzeros Variable types: 0 continuous, 275 integer (275 binary) Found heuristic solution: objective 121.0000000 Found heuristic solution: objective 115.0000000 Root relaxation: objective 0.000000e+00, 70 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 32 115.00000 0.00000 100% - 0s H 0 0 113.0000000 0.00000 100% - 0s H 0 0 107.0000000 0.00000 100% - 0s 0 0 0.75000 0 34 107.00000 0.75000 99.3% - 0s H 0 0 105.0000000 0.75000 99.3% - 0s 0 0 0.87564 0 47 105.00000 0.87564 99.2% - 0s 0 0 0.96875 0 34 105.00000 0.96875 99.1% - 0s 0 0 0.96875 0 34 105.00000 0.96875 99.1% - 0s 0 0 0.96875 0 34 105.00000 0.96875 99.1% - 0s 0 0 0.96875 0 34 105.00000 0.96875 99.1% - 0s 0 2 1.13331 0 34 105.00000 1.13331 98.9% - 0s * 424 222 23 104.0000000 32.03533 69.2% 35.6 0s * 548 286 22 102.0000000 34.62500 66.1% 34.7 0s * 551 278 20 100.0000000 34.62500 65.4% 34.5 0s * 921 412 27 95.0000000 39.88889 58.0% 37.7 1s 3720 904 91.88889 23 154 95.00000 56.90909 40.1% 31.7 5s 8709 1655 85.23810 20 152 95.00000 67.40000 29.1% 29.0 10s 14575 2215 93.10526 22 158 95.00000 73.05263 23.1% 27.3 15s 21521 2521 94.00000 23 154 95.00000 77.00000 18.9% 26.1 20s 28809 2404 92.29412 24 151 95.00000 80.05000 15.7% 25.1 25s 36581 1808 cutoff 23 95.00000 83.00000 12.6% 24.1 30s 44721 332 92.00000 23 154 95.00000 90.76471 4.46% 23.3 35s Cutting planes: Gomory: 1 Mod-K: 3 Explored 45196 nodes (1047306 simplex iterations) in 35.17 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 9.500000000000e+01, best bound 9.500000000000e+01, gap 0.0%