Gurobi 5.0.1 (linux64) logging started Fri Jan 18 08:37:54 2013 Optimize a model with 3400 rows, 201300 columns and 1403400 nonzeros Presolve removed 100 rows and 100 columns Presolve time: 2.39s Presolved: 3300 rows, 201200 columns, 1303300 nonzeros Variable types: 200200 continuous, 1000 integer (1000 binary) Root relaxation: objective 7.672886e+05, 6485 iterations, 1.44 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 767288.564 0 9 - 767288.564 - - 4s 0 0 767295.647 0 9 - 767295.647 - - 6s 0 0 767297.908 0 12 - 767297.908 - - 7s 0 0 767297.908 0 12 - 767297.908 - - 8s 0 0 767297.908 0 12 - 767297.908 - - 9s 0 0 767298.707 0 12 - 767298.707 - - 10s 0 0 767298.707 0 12 - 767298.707 - - 11s 0 0 767298.707 0 12 - 767298.707 - - 17s 0 2 767304.970 0 12 - 767304.970 - - 36s 16 18 768091.263 14 3 - 767389.200 - 66.1 40s 33 35 768391.967 31 3 - 767389.200 - 36.2 45s 44 46 768419.501 42 3 - 767389.200 - 29.2 50s 54 56 768440.046 52 1 - 767389.200 - 24.5 55s 68 70 768467.426 66 3 - 767389.200 - 20.3 60s 81 83 768494.804 79 1 - 767389.200 - 17.5 65s 97 99 768533.273 95 1 - 767389.200 - 15.0 70s 113 115 768572.774 111 1 - 767389.200 - 13.3 75s 126 128 768611.953 124 1 - 767389.200 - 12.2 80s 142 144 768658.726 140 1 - 767389.200 - 11.1 85s 163 165 768738.362 161 1 - 767389.200 - 10.0 90s 185 187 768795.586 183 1 - 767389.200 - 9.0 95s 213 215 768816.326 211 1 - 767389.200 - 8.0 100s 237 239 768845.895 235 1 - 767389.200 - 7.4 105s 279 281 768903.780 277 1 - 767389.200 - 6.5 110s 322 324 768988.424 320 1 - 767389.200 - 5.9 115s * 344 87 342 769067.48409 767389.200 0.22% 5.6 118s 365 93 768319.749 18 3 769067.484 767812.496 0.16% 8.2 120s H 373 26 768550.70803 767812.496 0.10% 8.2 120s * 387 29 38 768368.46641 767812.496 0.07% 8.1 121s H 428 32 768353.54371 767912.505 0.06% 9.2 123s * 435 31 37 768353.10833 767912.505 0.06% 9.0 123s 462 35 767930.285 5 3 768353.108 767917.219 0.06% 8.9 125s 582 41 768201.391 9 3 768353.108 768201.391 0.02% 9.1 130s Cutting planes: Flow cover: 7 Explored 603 nodes (13735 simplex iterations) in 131.49 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.683531083311e+05, best bound 7.682768126582e+05, gap 0.0099%