Gurobi 5.0.1 (linux64) logging started Wed Apr 24 12:08:55 2013 Optimize a model with 1650 rows, 225150 columns and 450150 nonzeros Presolve time: 0.53s Presolved: 1650 rows, 225150 columns, 450150 nonzeros Variable types: 225000 continuous, 150 integer (150 binary) Root relaxation: objective 2.445012e+05, 8851 iterations, 0.68 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 244501.210 0 7 - 244501.210 - - 1s H 0 0 263316.00000 244501.210 7.15% - 2s H 0 0 246347.00000 244501.210 0.75% - 2s 0 0 245117.252 0 5 246347.000 245117.252 0.50% - 3s 0 0 245117.252 0 7 246347.000 245117.252 0.50% - 4s 0 0 245117.252 0 5 246347.000 245117.252 0.50% - 5s 0 0 245181.779 0 5 246347.000 245181.779 0.47% - 5s 0 0 245192.092 0 4 246347.000 245192.092 0.47% - 5s 0 0 245205.244 0 5 246347.000 245205.244 0.46% - 5s 0 0 245210.630 0 5 246347.000 245210.630 0.46% - 6s 0 0 245211.168 0 5 246347.000 245211.168 0.46% - 6s 0 0 245215.941 0 3 246347.000 245215.941 0.46% - 6s 0 0 245222.298 0 3 246347.000 245222.298 0.46% - 6s 0 0 245222.298 0 3 246347.000 245222.298 0.46% - 7s 0 0 245223.848 0 4 246347.000 245223.848 0.46% - 7s 0 0 245226.434 0 3 246347.000 245226.434 0.45% - 7s 0 0 245226.434 0 3 246347.000 245226.434 0.45% - 7s 0 0 245226.434 0 3 246347.000 245226.434 0.45% - 8s 0 0 245226.434 0 3 246347.000 245226.434 0.45% - 8s 0 2 245228.318 0 3 246347.000 245228.318 0.45% - 9s 3 5 245282.928 3 2 246347.000 245247.983 0.45% 108 10s H 15 12 245786.00000 245360.237 0.17% 95.4 11s H 17 13 245756.00000 245360.237 0.16% 97.5 11s H 18 13 245724.00000 245360.237 0.15% 94.5 11s * 21 11 17 245675.00000 245360.237 0.13% 89.5 12s * 30 11 12 245417.00000 245370.292 0.02% 78.1 12s Cutting planes: Implied bound: 140 Flow cover: 6 Explored 37 nodes (19449 simplex iterations) in 12.80 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 2.454170000000e+05, best bound 2.453934725738e+05, gap 0.0096%