Gurobi 5.0.1 (linux64) logging started Fri Jan 18 08:31:24 2013 Optimize a model with 3400 rows, 201300 columns and 1403400 nonzeros Presolve removed 100 rows and 100 columns Presolve time: 1.95s Presolved: 3300 rows, 201200 columns, 1303300 nonzeros Variable types: 200200 continuous, 1000 integer (1000 binary) Root relaxation: objective 9.481640e+05, 7539 iterations, 0.92 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 948163.962 0 12 - 948163.962 - - 3s 0 0 948173.359 0 12 - 948173.359 - - 5s 0 0 948185.071 0 18 - 948185.071 - - 5s 0 0 948187.979 0 18 - 948187.979 - - 6s 0 0 948190.874 0 18 - 948190.874 - - 7s 0 0 948192.075 0 18 - 948192.075 - - 8s 0 0 948192.282 0 18 - 948192.282 - - 8s 0 0 948192.282 0 18 - 948192.282 - - 9s 0 0 948192.868 0 18 - 948192.868 - - 10s 0 0 948192.938 0 18 - 948192.938 - - 11s 0 0 948192.983 0 18 - 948192.983 - - 12s 0 0 948193.066 0 18 - 948193.066 - - 13s 0 0 948193.226 0 18 - 948193.226 - - 15s 0 0 948193.226 0 18 - 948193.226 - - 16s 0 0 948193.226 0 18 - 948193.226 - - 19s 0 2 948201.855 0 18 - 948201.855 - - 32s 11 13 948601.110 10 3 - 948316.146 - 101 35s 18 20 949582.490 17 3 - 948316.146 - 90.2 40s 26 28 949896.759 25 6 - 948316.146 - 73.4 45s * 33 18 32 950276.23626 948316.146 0.21% 65.0 48s 37 18 948494.180 7 9 950276.236 948399.707 0.20% 62.6 50s 67 32 948593.848 5 10 950276.236 948418.055 0.20% 61.3 55s 77 33 950205.848 10 3 950276.236 948418.055 0.20% 85.2 60s 86 34 cutoff 10 950276.236 948696.080 0.17% 103 65s 103 30 948912.546 2 10 950276.236 948811.651 0.15% 114 71s 115 27 cutoff 8 950276.236 948854.510 0.15% 118 75s 130 28 949849.340 5 3 950276.236 949284.822 0.10% 125 80s 149 26 949572.847 7 8 950276.236 949333.265 0.10% 124 85s 168 14 949730.476 12 6 950276.236 949730.476 0.06% 124 90s 176 16 950150.727 15 6 950276.236 949773.815 0.05% 125 95s 203 17 950117.859 42 3 950276.236 949787.291 0.05% 110 100s 263 50 950035.788 68 3 950276.236 949787.291 0.05% 86.0 105s 311 30 cutoff 15 950276.236 949867.640 0.04% 73.2 110s Cutting planes: Flow cover: 27 Explored 340 nodes (33457 simplex iterations) in 111.67 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 9.502762362556e+05, best bound 9.501978871264e+05, gap 0.0082%