Gurobi 5.0.1 (linux64) logging started Wed Apr 24 12:40:52 2013 Optimize a model with 2200 rows, 400200 columns and 800200 nonzeros Presolve time: 1.06s Presolved: 2200 rows, 400200 columns, 800200 nonzeros Variable types: 400000 continuous, 200 integer (200 binary) Root relaxation: objective 3.705253e+05, 13446 iterations, 1.87 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 370525.345 0 6 - 370525.345 - - 3s H 0 0 394053.00000 370525.345 5.97% - 4s 0 0 370673.854 0 6 394053.000 370673.854 5.93% - 6s H 0 0 387027.00000 370673.854 4.23% - 6s 0 0 370682.617 0 5 387027.000 370682.617 4.22% - 7s 0 0 370686.347 0 4 387027.000 370686.347 4.22% - 8s 0 0 370687.713 0 5 387027.000 370687.713 4.22% - 8s 0 0 370688.206 0 4 387027.000 370688.206 4.22% - 9s 0 0 370690.466 0 2 387027.000 370690.466 4.22% - 10s H 0 0 378941.76699 370690.466 2.18% - 10s H 0 0 378528.00000 370690.466 2.07% - 10s 0 0 370698.522 0 2 378528.000 370698.522 2.07% - 11s 0 0 370698.522 0 6 378528.000 370698.522 2.07% - 14s H 0 0 376846.00000 370698.522 1.63% - 15s 0 0 370698.522 0 6 376846.000 370698.522 1.63% - 16s 0 0 370698.522 0 5 376846.000 370698.522 1.63% - 17s 0 0 370698.522 0 4 376846.000 370698.522 1.63% - 17s 0 0 370698.522 0 4 376846.000 370698.522 1.63% - 18s 0 0 370698.522 0 3 376846.000 370698.522 1.63% - 18s 0 0 370698.522 0 2 376846.000 370698.522 1.63% - 19s 0 0 370698.522 0 2 376846.000 370698.522 1.63% - 20s 0 0 370698.522 0 2 376846.000 370698.522 1.63% - 20s 0 0 370698.522 0 2 376846.000 370698.522 1.63% - 21s 0 0 370698.522 0 2 376846.000 370698.522 1.63% - 21s 0 2 370698.713 0 2 376846.000 370698.713 1.63% - 23s H 2 2 371114.20000 370709.600 0.11% 14.0 24s H 3 2 370976.35385 370709.708 0.07% 47.3 24s 6 4 370717.735 5 1 370976.354 370717.735 0.07% 65.3 25s * 13 5 11 370964.00000 370717.735 0.07% 49.5 25s * 27 6 12 370835.00000 370778.974 0.02% 51.2 27s Cutting planes: Implied bound: 88 Flow cover: 1 Explored 31 nodes (27409 simplex iterations) in 27.75 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 3.708350000000e+05, best bound 3.708086502347e+05, gap 0.0071%