Gurobi 5.0.1 (linux64) logging started Wed Apr 24 01:34:01 2013 Optimize a model with 660 rows, 36060 columns and 72060 nonzeros Presolve time: 0.05s Presolved: 660 rows, 36060 columns, 72060 nonzeros Variable types: 36000 continuous, 60 integer (60 binary) Root relaxation: objective 6.505291e+04, 1334 iterations, 0.03 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 65052.9089 0 9 - 65052.9089 - - 0s H 0 0 68063.000000 65052.9089 4.42% - 0s H 0 0 65978.000000 65052.9089 1.40% - 0s 0 0 65543.8197 0 6 65978.0000 65543.8197 0.66% - 0s 0 0 65587.5581 0 8 65978.0000 65587.5581 0.59% - 0s 0 0 65597.2756 0 7 65978.0000 65597.2756 0.58% - 0s 0 0 65597.2756 0 9 65978.0000 65597.2756 0.58% - 0s 0 0 65597.2756 0 6 65978.0000 65597.2756 0.58% - 0s 0 0 65597.2756 0 7 65978.0000 65597.2756 0.58% - 0s 0 0 65600.1195 0 7 65978.0000 65600.1195 0.57% - 0s 0 0 65600.1273 0 6 65978.0000 65600.1273 0.57% - 0s 0 0 65606.3831 0 6 65978.0000 65606.3831 0.56% - 0s 0 0 65607.8007 0 6 65978.0000 65607.8007 0.56% - 0s 0 0 65607.8007 0 6 65978.0000 65607.8007 0.56% - 0s 0 2 65625.6917 0 6 65978.0000 65625.6917 0.53% - 1s H 8 5 65872.864865 65769.0470 0.16% 37.4 1s H 10 4 65872.132450 65769.0470 0.16% 45.7 1s * 10 4 8 65870.000000 65769.0470 0.15% 45.9 1s * 17 2 7 65869.000000 65781.7015 0.13% 49.3 1s * 23 1 9 65845.000000 65845.0000 0.0% 42.9 1s Cutting planes: Implied bound: 143 Flow cover: 6 Explored 24 nodes (4294 simplex iterations) in 1.33 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 6.584500000000e+04, best bound 6.584500000000e+04, gap 0.0%