Gurobi 5.0.1 (linux64) logging started Fri Jan 18 08:50:59 2013 Optimize a model with 3400 rows, 201300 columns and 1403400 nonzeros Presolve removed 100 rows and 100 columns Presolve time: 2.17s Presolved: 3300 rows, 201200 columns, 1303300 nonzeros Variable types: 200200 continuous, 1000 integer (1000 binary) Root relaxation: objective 9.053666e+05, 7029 iterations, 1.15 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 905366.638 0 6 - 905366.638 - - 4s 0 0 905370.454 0 6 - 905370.454 - - 5s 0 0 905371.565 0 6 - 905371.565 - - 6s 0 0 905372.194 0 6 - 905372.194 - - 7s 0 0 905372.338 0 6 - 905372.338 - - 7s 0 0 905372.450 0 6 - 905372.450 - - 8s 0 0 905372.515 0 6 - 905372.515 - - 9s 0 0 905372.568 0 6 - 905372.568 - - 10s 0 0 905372.591 0 6 - 905372.591 - - 11s 0 0 905372.591 0 6 - 905372.591 - - 13s 0 2 905382.689 0 6 - 905382.689 - - 27s 3 5 906636.807 3 6 - 905437.757 - 304 30s 9 11 907298.806 8 3 - 905437.757 - 210 35s 17 19 908529.463 16 6 - 905437.757 - 152 40s 28 30 909232.638 27 4 - 905437.757 - 110 45s 36 38 909788.648 35 1 - 905437.757 - 97.8 50s 48 50 911148.477 47 1 - 905437.757 - 86.5 55s 60 62 911584.247 59 1 - 905437.757 - 80.1 60s 70 72 912597.676 69 1 - 905437.757 - 77.8 65s 84 86 914213.743 83 1 - 905437.757 - 70.5 70s 105 107 914323.246 104 1 - 905437.757 - 57.3 75s 130 132 914518.373 129 1 - 905437.757 - 46.8 80s 170 172 915008.228 169 1 - 905437.757 - 36.2 85s 221 223 915888.810 220 1 - 905437.757 - 28.3 90s 286 288 916348.207 285 1 - 905437.757 - 22.2 95s * 328 145 327 916518.07344 905437.757 1.21% 19.6 99s 332 140 905463.462 2 6 916518.073 905463.462 1.21% 19.5 100s 339 147 906978.040 8 3 916518.073 905712.758 1.18% 22.1 105s 344 151 907897.315 13 3 916518.073 905712.758 1.18% 23.0 110s H 359 19 908129.12362 905712.758 0.27% 22.5 114s 361 22 908013.830 30 3 908129.124 905712.758 0.27% 22.5 115s * 382 25 51 908035.79958 905712.758 0.26% 21.5 118s 387 24 906005.917 2 3 908035.800 906005.917 0.22% 22.8 120s 426 44 907882.074 2 6 908035.800 906125.350 0.21% 25.8 126s 435 42 906407.386 3 3 908035.800 906347.369 0.19% 29.0 130s 447 53 907703.010 9 3 908035.800 906347.369 0.19% 32.8 135s 459 49 907137.944 5 3 908035.800 906416.212 0.18% 36.9 140s 480 48 906416.212 6 3 908035.800 906416.212 0.18% 37.5 145s * 518 71 43 908035.48433 906416.212 0.18% 36.3 148s * 521 68 41 908034.60925 906416.212 0.18% 36.1 148s 524 69 907499.387 6 3 908034.609 906780.310 0.14% 36.5 150s 545 65 907068.435 4 6 908034.609 907068.435 0.11% 39.2 155s 561 61 907765.310 7 3 908034.609 907524.339 0.06% 41.2 160s 588 50 907841.445 7 3 908034.609 907841.445 0.02% 41.5 165s Cutting planes: Flow cover: 16 Explored 629 nodes (34585 simplex iterations) in 169.26 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 9.080346092482e+05, best bound 9.079453132848e+05, gap 0.0098%