Gurobi 5.0.1 (linux64) logging started Fri Jan 18 05:52:15 2013 Optimize a model with 10320 rows, 24060 columns and 78100 nonzeros Presolve removed 20 rows and 20 columns Presolve time: 0.35s Presolved: 10300 rows, 24040 columns, 68080 nonzeros Variable types: 14040 continuous, 10000 integer (10000 binary) Root relaxation: objective 4.636776e+04, 551 iterations, 0.05 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 46367.7551 0 4 - 46367.7551 - - 1s 0 0 46395.7239 0 4 - 46395.7239 - - 1s 0 0 46404.5137 0 4 - 46404.5137 - - 1s 0 0 46410.2181 0 6 - 46410.2181 - - 1s 0 0 46411.0579 0 5 - 46411.0579 - - 1s 0 0 46414.1782 0 4 - 46414.1782 - - 1s 0 0 46418.5220 0 7 - 46418.5220 - - 2s 0 0 46423.2229 0 4 - 46423.2229 - - 2s 0 0 46423.6838 0 6 - 46423.6838 - - 2s 0 0 46424.1635 0 9 - 46424.1635 - - 2s 0 0 46426.9278 0 9 - 46426.9278 - - 2s 0 0 46428.8776 0 9 - 46428.8776 - - 2s 0 0 46429.5810 0 9 - 46429.5810 - - 2s 0 0 46431.0690 0 11 - 46431.0690 - - 2s 0 0 46431.3270 0 10 - 46431.3270 - - 2s 0 0 46432.4624 0 16 - 46432.4624 - - 2s 0 0 46433.4915 0 10 - 46433.4915 - - 2s 0 0 46433.5679 0 18 - 46433.5679 - - 3s 0 0 46435.4351 0 10 - 46435.4351 - - 3s 0 0 46435.5044 0 20 - 46435.5044 - - 3s 0 0 46437.2268 0 10 - 46437.2268 - - 3s 0 0 46437.3501 0 21 - 46437.3501 - - 3s 0 0 46438.3228 0 21 - 46438.3228 - - 3s 0 0 46438.5247 0 18 - 46438.5247 - - 3s 0 0 46438.6738 0 21 - 46438.6738 - - 3s 0 0 46438.9187 0 10 - 46438.9187 - - 4s 0 0 46438.9284 0 18 - 46438.9284 - - 4s 0 0 46439.0759 0 22 - 46439.0759 - - 4s 0 0 46439.1009 0 22 - 46439.1009 - - 4s 0 0 46439.1009 0 22 - 46439.1009 - - 4s 0 2 46439.1009 0 22 - 46439.1009 - - 6s * 23 7 12 46653.828005 46653.6145 0.00% 32.8 6s Cutting planes: Gomory: 2 Implied bound: 57 Flow cover: 10 Explored 24 nodes (2485 simplex iterations) in 6.97 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 4.665382800523e+04, best bound 4.665361451749e+04, gap 0.0005%