Gurobi 5.0.1 (linux64) logging started Fri Jan 18 03:15:44 2013 Optimize a model with 2800 rows, 126500 columns and 401500 nonzeros Presolve removed 100 rows and 5700 columns Presolve time: 0.63s Presolved: 2700 rows, 120800 columns, 381500 nonzeros Variable types: 120100 continuous, 700 integer (700 binary) Root relaxation: objective 8.570461e+05, 7342 iterations, 0.91 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 857046.104 0 4 - 857046.104 - - 1s 0 0 857083.411 0 4 - 857083.411 - - 2s 0 0 857088.292 0 4 - 857088.292 - - 3s 0 0 857088.292 0 4 - 857088.292 - - 3s 0 0 857089.170 0 4 - 857089.170 - - 3s 0 0 857089.221 0 4 - 857089.221 - - 4s 0 0 857090.665 0 4 - 857090.665 - - 5s 0 0 857091.533 0 4 - 857091.533 - - 5s 0 0 857091.676 0 4 - 857091.676 - - 5s 0 0 857091.880 0 4 - 857091.880 - - 6s 0 0 857092.408 0 4 - 857092.408 - - 7s 0 0 857092.806 0 4 - 857092.806 - - 7s 0 0 857092.848 0 4 - 857092.848 - - 7s 0 0 857092.879 0 4 - 857092.879 - - 8s 0 0 857092.879 0 4 - 857092.879 - - 9s 0 0 857092.907 0 4 - 857092.907 - - 9s 0 0 857092.907 0 4 - 857092.907 - - 10s 0 2 857093.865 0 4 - 857093.865 - - 17s 6 8 857857.184 6 5 - 857810.259 - 189 20s 22 24 858558.747 22 8 - 857810.259 - 98.2 25s 46 48 859009.571 46 10 - 857810.259 - 69.6 30s 78 80 859449.202 77 4 - 857810.259 - 55.6 35s 105 107 859793.124 104 6 - 857810.259 - 47.6 40s 147 149 860648.233 146 1 - 857810.259 - 43.1 45s 186 188 861932.055 184 4 - 857810.259 - 41.6 50s * 213 190 209 863023.49963 857810.259 0.60% 39.6 52s 223 185 862663.027 10 8 863023.500 857888.914 0.59% 41.2 55s 268 219 861156.247 33 9 863023.500 857895.277 0.59% 42.1 60s H 272 189 861775.74984 857895.277 0.45% 41.7 60s H 326 56 859315.98525 858168.476 0.13% 39.3 62s H 353 64 859304.50498 858198.126 0.13% 38.6 63s * 390 79 37 859242.98384 858198.126 0.12% 36.6 64s 392 74 cutoff 11 859242.984 858211.183 0.12% 37.2 65s * 433 85 33 859210.78117 858289.400 0.11% 38.6 67s 481 123 858997.522 43 4 859210.781 858301.202 0.11% 37.7 70s * 571 121 33 859161.56610 858562.102 0.07% 37.5 74s 580 130 858833.823 31 3 859161.566 858562.102 0.07% 37.8 75s 701 147 859039.377 50 4 859161.566 858713.119 0.05% 35.1 81s 707 151 858868.413 36 8 859161.566 858713.119 0.05% 34.8 85s 712 155 858713.119 12 8 859161.566 858713.119 0.05% 48.1 90s 729 154 858881.634 26 4 859161.566 858713.119 0.05% 48.3 95s 752 147 858922.416 23 4 859161.566 858713.119 0.05% 48.5 100s 801 135 858875.027 25 4 859161.566 858863.263 0.03% 46.9 105s 863 118 859052.518 76 4 859161.566 858924.773 0.03% 44.3 110s * 905 95 111 859144.57209 858924.773 0.03% 42.7 112s * 913 72 44 859006.55282 859006.553 0.0% 43.0 113s Cutting planes: Gomory: 1 Flow cover: 9 Explored 914 nodes (51243 simplex iterations) in 113.40 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 8.590065528169e+05, best bound 8.590065528169e+05, gap 0.0%