Gurobi 5.0.1 (linux64) logging started Thu Jan 17 23:38:31 2013 Optimize a model with 1600 rows, 100600 columns and 201400 nonzeros Presolve removed 100 rows and 100 columns Presolve time: 0.27s Presolved: 1500 rows, 100500 columns, 201100 nonzeros Variable types: 100400 continuous, 100 integer (100 binary) Root relaxation: objective 9.053666e+05, 7498 iterations, 0.51 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 905366.638 0 2 - 905366.638 - - 0s H 0 0 925632.03755 905366.638 2.19% - 1s H 0 0 920393.93002 905366.638 1.63% - 1s 0 0 905399.438 0 2 920393.930 905399.438 1.63% - 1s 0 0 905423.554 0 2 920393.930 905423.554 1.63% - 2s 0 0 905427.247 0 2 920393.930 905427.247 1.63% - 2s 0 0 905432.247 0 2 920393.930 905432.247 1.63% - 2s 0 0 905448.335 0 2 920393.930 905448.335 1.62% - 2s 0 0 905449.683 0 2 920393.930 905449.683 1.62% - 3s 0 0 905452.151 0 2 920393.930 905452.151 1.62% - 3s 0 0 905453.596 0 2 920393.930 905453.596 1.62% - 3s 0 0 905455.266 0 2 920393.930 905455.266 1.62% - 3s 0 0 905456.089 0 2 920393.930 905456.089 1.62% - 3s 0 0 905456.868 0 2 920393.930 905456.868 1.62% - 4s 0 0 905457.184 0 2 920393.930 905457.184 1.62% - 4s 0 0 905457.389 0 2 920393.930 905457.389 1.62% - 4s 0 0 905457.763 0 2 920393.930 905457.763 1.62% - 5s 0 0 905458.287 0 2 920393.930 905458.287 1.62% - 5s 0 0 905459.442 0 2 920393.930 905459.442 1.62% - 5s 0 0 905460.109 0 2 920393.930 905460.109 1.62% - 6s 0 0 905460.782 0 2 920393.930 905460.782 1.62% - 6s 0 0 905461.527 0 2 920393.930 905461.527 1.62% - 6s 0 0 905462.008 0 2 920393.930 905462.008 1.62% - 6s 0 0 905462.280 0 2 920393.930 905462.280 1.62% - 6s 0 0 905463.212 0 2 920393.930 905463.212 1.62% - 7s 0 0 905463.944 0 2 920393.930 905463.944 1.62% - 7s 0 0 905464.179 0 2 920393.930 905464.179 1.62% - 7s 0 0 905466.896 0 2 920393.930 905466.896 1.62% - 8s 0 0 905469.467 0 2 920393.930 905469.467 1.62% - 8s 0 0 905470.112 0 2 920393.930 905470.112 1.62% - 8s 0 0 905471.028 0 2 920393.930 905471.028 1.62% - 9s 0 0 905471.164 0 2 920393.930 905471.164 1.62% - 9s 0 0 905471.249 0 2 920393.930 905471.249 1.62% - 9s 0 0 905471.550 0 2 920393.930 905471.550 1.62% - 9s 0 0 905471.841 0 2 920393.930 905471.841 1.62% - 10s 0 0 905471.940 0 2 920393.930 905471.940 1.62% - 10s 0 0 905471.940 0 2 920393.930 905471.940 1.62% - 10s 0 2 905479.736 0 2 920393.930 905479.736 1.62% - 11s * 17 7 16 907923.98716 906520.968 0.15% 91.1 13s 25 7 907700.702 8 1 907923.987 906821.471 0.12% 93.7 15s Cutting planes: Flow cover: 32 Explored 54 nodes (15755 simplex iterations) in 18.29 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 9.079239871585e+05, best bound 9.078924582509e+05, gap 0.0035%