Gurobi 5.0.1 (linux64) logging started Wed Apr 24 12:08:37 2013 Optimize a model with 1650 rows, 225150 columns and 450150 nonzeros Presolve time: 0.54s Presolved: 1650 rows, 225150 columns, 450150 nonzeros Variable types: 225000 continuous, 150 integer (150 binary) Root relaxation: objective 2.434136e+05, 7700 iterations, 0.60 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 243413.631 0 5 - 243413.631 - - 1s H 0 0 252223.00000 243413.631 3.49% - 1s H 0 0 245360.00000 243413.631 0.79% - 2s 0 0 243638.034 0 4 245360.000 243638.034 0.70% - 3s 0 0 243638.034 0 5 245360.000 243638.034 0.70% - 4s 0 0 243638.419 0 4 245360.000 243638.419 0.70% - 5s 0 0 243641.682 0 4 245360.000 243641.682 0.70% - 5s 0 0 243650.067 0 4 245360.000 243650.067 0.70% - 5s 0 0 243650.067 0 4 245360.000 243650.067 0.70% - 5s 0 0 243650.067 0 4 245360.000 243650.067 0.70% - 6s 0 0 243650.067 0 4 245360.000 243650.067 0.70% - 6s 0 2 243659.808 0 4 245360.000 243659.808 0.69% - 7s H 12 12 244667.00000 243806.087 0.35% 189 9s H 13 13 244549.00000 243806.087 0.30% 183 9s 13 14 244045.614 11 2 244549.000 243806.087 0.30% 190 10s H 19 11 244172.00000 243806.087 0.15% 150 10s H 20 9 244162.00000 243806.087 0.15% 146 10s * 23 9 21 244154.00000 243806.087 0.14% 127 10s Cutting planes: Implied bound: 142 Flow cover: 5 Explored 43 nodes (19403 simplex iterations) in 12.37 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 2.441540000000e+05, best bound 2.441365200000e+05, gap 0.0072%