Gurobi 5.0.1 (linux64) logging started Wed Apr 24 02:42:38 2013 Optimize a model with 54166 rows, 53436 columns and 213306 nonzeros Presolve removed 73 rows and 0 columns Presolve time: 0.24s Presolved: 54093 rows, 53436 columns, 213233 nonzeros Variable types: 53363 continuous, 73 integer (73 binary) Root simplex log... Iteration Objective Primal Inf. Dual Inf. Time 7253 6.3028547e+04 7.711798e+03 0.000000e+00 5s 7700 6.3091429e+04 0.000000e+00 0.000000e+00 6s Root relaxation: objective 6.309143e+04, 7700 iterations, 5.95 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 63091.4289 0 62 - 63091.4289 - - 6s H 0 0 108011.00000 63091.4289 41.6% - 9s 0 0 80878.1736 0 21 108011.000 80878.1736 25.1% - 18s H 0 0 93667.000000 80878.1736 13.7% - 19s 0 0 82524.4628 0 5 93667.0000 82524.4628 11.9% - 21s H 0 0 86219.296176 82524.4628 4.29% - 21s H 0 0 83306.000000 82524.4628 0.94% - 21s 0 0 82533.0357 0 3 83306.0000 82533.0357 0.93% - 21s H 0 0 83283.015873 82533.0357 0.90% - 22s 0 2 82533.9148 0 3 83283.0159 82533.9148 0.90% - 23s H 1 1 83274.100000 82533.9148 0.89% 0.0 23s H 3 3 82815.428571 82661.2806 0.19% 241 24s 6 5 82690.8567 5 2 82815.4286 82661.2806 0.19% 208 25s * 25 5 24 82754.000000 82661.2806 0.11% 108 26s H 27 3 82737.000000 82692.5974 0.05% 107 27s Cutting planes: Gomory: 1 Implied bound: 72 Explored 40 nodes (19253 simplex iterations) in 27.96 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 8.273700000000e+04, best bound 8.272900000000e+04, gap 0.0097%