Gurobi 5.0.1 (linux64) logging started Sat Nov 17 07:46:21 2012 Optimize a model with 73706 rows, 56406 columns and 276340 nonzeros Presolve removed 737 rows and 6162 columns (presolve time = 5s) ... Presolve removed 739 rows and 6164 columns Presolve time: 6.33s Presolved: 72967 rows, 50242 columns, 267903 nonzeros Variable types: 0 continuous, 50242 integer (50242 binary) Found heuristic solution: objective 237.0000000 Root simplex log... Iteration Objective Primal Inf. Dual Inf. Time 33793 2.8334503e+00 1.465833e+02 0.000000e+00 6s 38449 2.8890183e+00 5.555556e+01 0.000000e+00 10s 50815 3.0001408e+00 1.761035e+02 0.000000e+00 15s 54845 3.0001519e+00 9.489020e+02 0.000000e+00 20s 57480 3.0001596e+00 1.652129e+03 0.000000e+00 25s 59805 3.0001638e+00 1.856055e+02 0.000000e+00 30s 62130 3.0001663e+00 1.279421e+02 0.000000e+00 35s 64610 3.0001689e+00 9.957429e+01 0.000000e+00 40s 67245 3.0001720e+00 1.150513e+02 0.000000e+00 45s 69725 3.0001751e+00 2.397590e+01 0.000000e+00 50s 72050 3.0001777e+00 8.259766e+01 0.000000e+00 55s 74530 3.0001804e+00 3.270613e+02 0.000000e+00 60s 77010 3.0001831e+00 3.668170e+01 0.000000e+00 65s 79645 3.0001867e+00 7.354233e+01 0.000000e+00 70s 81970 3.0001894e+00 1.218790e+02 0.000000e+00 75s 84295 3.0001916e+00 2.130080e+02 0.000000e+00 80s 86620 3.0001932e+00 1.103519e+02 0.000000e+00 85s 88945 3.0001957e+00 3.719220e+02 0.000000e+00 90s 91270 3.0001983e+00 4.443444e+01 0.000000e+00 95s 93440 3.0002003e+00 2.637251e+01 0.000000e+00 100s 95610 3.0002017e+00 1.854188e+01 0.000000e+00 105s 97780 3.0002036e+00 1.003744e+01 0.000000e+00 110s 99950 3.0002052e+00 3.342845e+01 0.000000e+00 115s 102275 3.0002071e+00 1.407088e+01 0.000000e+00 120s 104600 3.0002097e+00 6.234582e+00 0.000000e+00 125s 106770 3.0002115e+00 3.820670e+01 0.000000e+00 130s 108940 3.0002131e+00 4.052680e+02 0.000000e+00 135s 111110 3.0002150e+00 2.050705e+01 0.000000e+00 140s 113280 3.0002173e+00 8.396610e+01 0.000000e+00 145s 115450 3.0002194e+00 4.141652e+00 0.000000e+00 150s 117620 3.0002209e+00 1.617257e+01 0.000000e+00 155s 119635 3.0002212e+00 1.626060e+00 0.000000e+00 160s 119983 3.0000000e+00 0.000000e+00 0.000000e+00 161s Root relaxation: objective 3.000000e+00, 119983 iterations, 160.92 seconds Total elapsed time = 224.35s Total elapsed time = 226.73s Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 3.00000 0 62 237.00000 3.00000 98.7% - 228s H 0 0 3.0000000 3.00000 0.0% - 228s Explored 0 nodes (202566 simplex iterations) in 228.67 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 3.000000000000e+00, best bound 3.000000000000e+00, gap 0.0%