Gurobi 5.0.1 (linux64) logging started Wed Apr 24 12:38:37 2013 Optimize a model with 2200 rows, 400200 columns and 800200 nonzeros Presolve time: 1.10s Presolved: 2200 rows, 400200 columns, 800200 nonzeros Variable types: 400000 continuous, 200 integer (200 binary) Root relaxation: objective 4.085432e+05, 13472 iterations, 1.43 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 408543.156 0 7 - 408543.156 - - 2s H 0 0 471043.00000 408543.156 13.3% - 3s 0 0 408891.360 0 7 471043.000 408891.360 13.2% - 5s 0 0 409002.377 0 6 471043.000 409002.377 13.2% - 6s H 0 0 461866.17199 409002.377 11.4% - 6s H 0 0 459925.00000 409002.377 11.1% - 7s 0 0 409045.227 0 5 459925.000 409045.227 11.1% - 8s H 0 0 458974.00000 409045.227 10.9% - 8s 0 0 409054.249 0 7 458974.000 409054.249 10.9% - 9s H 0 0 458918.00000 409054.249 10.9% - 9s 0 0 409076.571 0 6 458918.000 409076.571 10.9% - 10s 0 0 409079.147 0 5 458918.000 409079.147 10.9% - 11s 0 0 409086.886 0 4 458918.000 409086.886 10.9% - 12s H 0 0 450339.05226 409086.886 9.16% - 13s H 0 0 448929.00000 409086.886 8.87% - 13s 0 0 409086.886 0 4 448929.000 409086.886 8.87% - 13s 0 0 409093.617 0 5 448929.000 409093.617 8.87% - 15s 0 0 409093.930 0 4 448929.000 409093.930 8.87% - 16s 0 0 409094.008 0 4 448929.000 409094.008 8.87% - 17s 0 0 409095.181 0 4 448929.000 409095.181 8.87% - 18s 0 0 409095.181 0 4 448929.000 409095.181 8.87% - 19s 0 0 409095.181 0 4 448929.000 409095.181 8.87% - 20s 0 0 409095.181 0 4 448929.000 409095.181 8.87% - 21s 0 2 409116.513 0 4 448929.000 409116.513 8.87% - 24s 1 3 409356.608 1 5 448929.000 409345.976 8.82% 441 26s H 2 2 436924.42323 409345.976 6.31% 220 27s H 4 4 434234.83353 409490.962 5.70% 425 30s H 7 7 429352.51203 409754.491 4.56% 489 33s H 9 9 420027.63918 409754.491 2.45% 432 35s H 11 11 416160.87162 409754.491 1.54% 407 37s H 14 11 410156.00000 409754.491 0.10% 363 37s * 16 10 12 410153.00000 409754.491 0.10% 326 37s 31 9 cutoff 4 410153.000 409853.781 0.07% 221 40s * 41 8 8 410104.00000 409877.315 0.06% 197 41s Cutting planes: Implied bound: 308 Flow cover: 7 Explored 54 nodes (24413 simplex iterations) in 42.96 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 4.101040000000e+05, best bound 4.101040000000e+05, gap 0.0%