Gurobi 5.0.1 (linux64) logging started Wed Apr 24 02:53:04 2013 Optimize a model with 57075 rows, 56325 columns and 225075 nonzeros Presolve removed 3001 rows and 0 columns Presolve time: 0.35s Presolved: 54074 rows, 56325 columns, 219073 nonzeros Variable types: 56250 continuous, 75 integer (75 binary) Root relaxation: objective 9.632020e+04, 16598 iterations, 3.80 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 96320.2046 0 4 - 96320.2046 - - 4s H 0 0 97617.000000 96320.2046 1.33% - 4s 0 0 96322.7831 0 5 97617.0000 96322.7831 1.33% - 4s 0 0 96323.4038 0 5 97617.0000 96323.4038 1.33% - 5s 0 0 96323.4271 0 5 97617.0000 96323.4271 1.33% - 5s H 0 0 97194.304558 96323.4271 0.90% - 6s H 0 0 97122.524862 96323.4271 0.82% - 7s 0 0 96323.4271 0 4 97122.5249 96323.4271 0.82% - 10s 0 0 96323.4271 0 5 97122.5249 96323.4271 0.82% - 10s 0 0 96323.5213 0 5 97122.5249 96323.5213 0.82% - 10s H 0 0 96949.000000 96323.5213 0.65% - 12s 0 2 96329.7122 0 5 96949.0000 96329.7122 0.64% - 12s H 8 7 96641.000000 96523.5990 0.12% 236 13s H 9 5 96632.466667 96523.5990 0.11% 214 13s * 11 4 7 96612.000000 96523.5990 0.09% 185 14s Cutting planes: Gomory: 2 Flow cover: 7 Explored 22 nodes (27100 simplex iterations) in 14.43 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 9.661200000000e+04, best bound 9.661200000000e+04, gap 0.0%