Gurobi 5.0.1 (linux64) logging started Thu Jan 17 23:42:47 2013 Optimize a model with 1400 rows, 100500 columns and 201000 nonzeros Presolve removed 100 rows and 100 columns Presolve time: 0.21s Presolved: 1600 rows, 100600 columns, 201300 nonzeros Variable types: 100400 continuous, 200 integer (200 binary) Root relaxation: objective 9.053666e+05, 5564 iterations, 0.50 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 905366.638 0 4 - 905366.638 - - 0s H 0 0 920393.93002 905366.638 1.63% - 1s 0 0 905393.438 0 4 920393.930 905393.438 1.63% - 2s 0 0 905442.138 0 4 920393.930 905442.138 1.62% - 2s 0 0 905447.321 0 4 920393.930 905447.321 1.62% - 2s 0 0 905447.321 0 4 920393.930 905447.321 1.62% - 3s 0 0 905447.321 0 4 920393.930 905447.321 1.62% - 3s 0 0 905448.826 0 4 920393.930 905448.826 1.62% - 3s 0 0 905454.431 0 4 920393.930 905454.431 1.62% - 4s 0 0 905458.403 0 4 920393.930 905458.403 1.62% - 4s 0 0 905460.783 0 4 920393.930 905460.783 1.62% - 4s 0 0 905461.630 0 4 920393.930 905461.630 1.62% - 4s 0 0 905461.950 0 4 920393.930 905461.950 1.62% - 4s 0 0 905462.111 0 4 920393.930 905462.111 1.62% - 5s 0 0 905463.657 0 4 920393.930 905463.657 1.62% - 5s 0 0 905464.250 0 4 920393.930 905464.250 1.62% - 5s 0 0 905464.572 0 4 920393.930 905464.572 1.62% - 5s 0 0 905464.861 0 4 920393.930 905464.861 1.62% - 6s 0 0 905465.523 0 4 920393.930 905465.523 1.62% - 6s 0 0 905466.175 0 4 920393.930 905466.175 1.62% - 6s 0 0 905466.245 0 4 920393.930 905466.245 1.62% - 6s 0 0 905466.557 0 4 920393.930 905466.557 1.62% - 7s 0 0 905467.364 0 4 920393.930 905467.364 1.62% - 7s 0 0 905468.766 0 4 920393.930 905468.766 1.62% - 7s 0 0 905470.090 0 4 920393.930 905470.090 1.62% - 7s 0 0 905470.554 0 4 920393.930 905470.554 1.62% - 8s 0 0 905470.699 0 4 920393.930 905470.699 1.62% - 8s 0 0 905470.709 0 4 920393.930 905470.709 1.62% - 8s 0 0 905470.728 0 4 920393.930 905470.728 1.62% - 8s 0 0 905470.756 0 4 920393.930 905470.756 1.62% - 9s 0 0 905471.082 0 4 920393.930 905471.082 1.62% - 9s 0 0 905471.082 0 4 920393.930 905471.082 1.62% - 10s 0 2 905485.285 0 4 920393.930 905485.285 1.62% - 10s * 16 6 16 907923.98716 906151.455 0.20% 94.8 14s 18 4 906520.968 1 2 907923.987 906520.968 0.15% 111 15s Cutting planes: Flow cover: 32 Explored 41 nodes (14355 simplex iterations) in 19.36 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 9.079239871585e+05, best bound 9.078820735993e+05, gap 0.0046%