Gurobi 5.0.1 (linux64) logging started Fri Jan 18 08:33:43 2013 Optimize a model with 3400 rows, 201300 columns and 1403400 nonzeros Presolve removed 100 rows and 100 columns Presolve time: 2.45s Presolved: 3300 rows, 201200 columns, 1303300 nonzeros Variable types: 200200 continuous, 1000 integer (1000 binary) Root relaxation: objective 7.543716e+05, 6903 iterations, 1.11 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 754371.571 0 12 - 754371.571 - - 4s 0 0 754377.733 0 12 - 754377.733 - - 5s 0 0 754382.458 0 17 - 754382.458 - - 6s 0 0 754383.446 0 19 - 754383.446 - - 7s 0 0 754384.307 0 20 - 754384.307 - - 8s 0 0 754384.518 0 20 - 754384.518 - - 10s 0 0 754384.819 0 20 - 754384.819 - - 11s 0 0 754384.895 0 20 - 754384.895 - - 12s 0 0 754385.036 0 20 - 754385.036 - - 13s 0 0 754385.036 0 20 - 754385.036 - - 14s 0 0 754385.036 0 20 - 754385.036 - - 15s 0 0 754385.036 0 20 - 754385.036 - - 17s 0 0 754385.036 0 20 - 754385.036 - - 21s 0 2 754391.922 0 20 - 754391.922 - - 40s 13 15 755218.513 12 5 - 754674.714 - 141 45s 29 31 755712.514 28 1 - 754674.714 - 73.8 50s 38 40 755913.061 37 1 - 754674.714 - 62.4 55s 49 51 756305.957 48 1 - 754674.714 - 52.6 60s 65 67 756704.234 64 1 - 754674.714 - 44.8 65s 79 81 757089.790 78 1 - 754674.714 - 40.0 70s 94 96 757216.039 93 1 - 754674.714 - 35.1 75s 110 112 757473.965 109 1 - 754674.714 - 31.0 80s 127 129 757676.228 126 1 - 754674.714 - 27.3 85s 145 147 758038.437 144 3 - 754674.714 - 24.5 90s 167 169 758348.663 165 1 - 754674.714 - 22.3 95s 188 190 758575.069 186 1 - 754674.714 - 20.1 100s 222 224 758916.719 219 1 - 754674.714 - 17.5 105s 250 252 758990.528 247 1 - 754674.714 - 15.8 110s 298 300 759188.105 295 1 - 754674.714 - 13.5 115s 333 335 759262.060 330 1 - 754674.714 - 12.3 120s * 337 141 334 759263.30773 754674.714 0.60% 12.1 120s 436 230 756959.413 103 1 759263.308 754699.278 0.60% 13.8 125s H 503 217 758569.70977 754699.278 0.51% 12.3 126s 601 315 757693.687 184 20 758569.710 754699.278 0.51% 10.5 133s 603 316 755289.044 24 12 758569.710 754699.278 0.51% 10.5 136s 608 320 757132.442 119 20 758569.710 754699.278 0.51% 10.4 140s 612 322 757693.687 184 20 758569.710 754699.278 0.51% 10.4 145s 614 324 757759.713 208 20 758569.710 754699.278 0.51% 10.3 153s 616 325 757923.438 248 20 758569.710 754699.278 0.51% 10.3 155s 617 328 754717.343 11 16 758569.710 754717.343 0.51% 27.2 163s 619 329 754766.728 12 13 758569.710 754766.728 0.50% 28.9 169s 620 330 754793.550 12 3 758569.710 754793.550 0.50% 29.2 170s 631 337 754828.129 18 7 758569.710 754807.136 0.50% 30.1 175s 640 342 757915.366 22 3 758569.710 754919.013 0.48% 31.7 181s 645 345 756714.909 25 3 758569.710 755057.021 0.46% 32.4 185s 654 347 755596.425 31 3 758569.710 755057.021 0.46% 33.1 190s 666 343 755649.671 41 3 758569.710 755057.021 0.46% 34.2 195s H 670 300 755723.75930 755057.021 0.09% 34.1 197s 686 299 755683.042 56 3 755723.759 755057.021 0.09% 33.4 200s * 704 278 71 755685.30695 755057.021 0.08% 32.8 204s 706 274 755070.021 13 3 755685.307 755065.061 0.08% 33.2 205s 729 269 755181.305 25 3 755685.307 755065.061 0.08% 33.2 210s 767 255 755683.126 19 3 755685.307 755176.437 0.07% 33.2 215s 799 246 cutoff 21 755685.307 755426.607 0.03% 34.8 220s 850 224 755682.228 22 6 755685.307 755598.968 0.01% 34.3 225s Cutting planes: Flow cover: 22 Explored 855 nodes (38950 simplex iterations) in 225.69 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.556853069466e+05, best bound 7.556325136562e+05, gap 0.0070%