Gurobi 5.0.1 (linux64) logging started Wed Apr 24 03:50:51 2013 Optimize a model with 891 rows, 65691 columns and 131301 nonzeros Presolve time: 0.10s Presolved: 891 rows, 65691 columns, 131301 nonzeros Variable types: 65610 continuous, 81 integer (81 binary) Root relaxation: objective 9.763152e+04, 2874 iterations, 0.12 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 97631.5203 0 7 - 97631.5203 - - 0s H 0 0 104590.00000 97631.5203 6.65% - 0s 0 0 97745.2226 0 4 104590.000 97745.2226 6.54% - 0s 0 0 97762.0374 0 4 104590.000 97762.0374 6.53% - 0s 0 0 97777.0016 0 4 104590.000 97777.0016 6.51% - 0s 0 0 97780.6458 0 4 104590.000 97780.6458 6.51% - 0s 0 0 97783.9648 0 3 104590.000 97783.9648 6.51% - 0s H 0 0 101879.35431 97783.9648 4.02% - 0s H 0 0 101030.00000 97783.9648 3.21% - 1s 0 0 97784.5716 0 4 101030.000 97784.5716 3.21% - 1s H 0 0 100919.00000 97784.5716 3.11% - 1s 0 0 97784.8571 0 4 100919.000 97784.8571 3.11% - 1s 0 0 97786.0184 0 4 100919.000 97786.0184 3.10% - 1s 0 0 97786.2149 0 3 100919.000 97786.2149 3.10% - 1s 0 0 97786.2149 0 3 100919.000 97786.2149 3.10% - 1s 0 0 97786.2149 0 3 100919.000 97786.2149 3.10% - 1s H 0 0 100866.00000 97786.2149 3.05% - 1s 0 0 97786.2149 0 3 100866.000 97786.2149 3.05% - 1s 0 2 97786.5739 0 3 100866.000 97786.5739 3.05% - 2s H 3 3 99494.651515 97821.6349 1.68% 61.3 2s H 7 7 98477.000000 97828.0407 0.66% 52.3 2s H 9 9 98202.000000 97828.0407 0.38% 44.9 2s H 14 7 97971.000000 97828.0407 0.15% 32.9 2s * 17 8 16 97951.000000 97828.0407 0.13% 31.2 2s H 22 2 97889.590674 97849.0000 0.04% 29.6 2s * 24 1 10 97887.000000 97878.5192 0.01% 32.0 2s Cutting planes: Implied bound: 101 Flow cover: 3 Explored 25 nodes (4162 simplex iterations) in 2.66 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 9.788700000000e+04, best bound 9.787851917098e+04, gap 0.0087%