Gurobi 5.0.1 (linux64) logging started Wed Apr 24 05:20:54 2013 Optimize a model with 76734 rows, 75864 columns and 302934 nonzeros Presolve removed 87 rows and 0 columns Presolve time: 0.36s Presolved: 76647 rows, 75864 columns, 302847 nonzeros Variable types: 75777 continuous, 87 integer (87 binary) Root simplex log... Iteration Objective Primal Inf. Dual Inf. Time 8263 7.7125952e+04 4.305508e+04 0.000000e+00 5s 10317 7.8648060e+04 3.514129e+03 0.000000e+00 10s 11714 7.8908042e+04 0.000000e+00 0.000000e+00 14s Root relaxation: objective 7.890804e+04, 11714 iterations, 13.78 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 78908.0415 0 65 - 78908.0415 - - 14s H 0 0 141402.00000 78908.0415 44.2% - 21s 0 0 107875.384 0 17 141402.000 107875.384 23.7% - 37s H 0 0 141031.66209 107875.384 23.5% - 37s H 0 0 121252.00000 107875.384 11.0% - 38s 0 0 111910.565 0 9 121252.000 111910.565 7.70% - 41s 0 0 113392.790 0 4 121252.000 113392.790 6.48% - 43s H 0 0 118444.79403 113392.790 4.27% - 43s H 0 0 116879.00000 113392.790 2.98% - 44s H 0 0 113828.00000 113392.790 0.38% - 44s 0 0 113440.886 0 4 113828.000 113440.886 0.34% - 44s 0 0 113638.028 0 3 113828.000 113638.028 0.17% - 46s 0 0 113744.200 0 2 113828.000 113744.200 0.07% - 47s 0 0 113768.343 0 3 113828.000 113768.343 0.05% - 47s 0 0 113772.954 0 2 113828.000 113772.954 0.05% - 48s 0 0 113772.954 0 48 113828.000 113772.954 0.05% - 57s 0 0 113772.954 0 10 113828.000 113772.954 0.05% - 74s 0 0 113772.954 0 2 113828.000 113772.954 0.05% - 75s 0 0 113772.954 0 3 113828.000 113772.954 0.05% - 76s 0 0 113772.954 0 2 113828.000 113772.954 0.05% - 77s 0 0 113821.112 0 1 113828.000 113821.112 0.01% - 77s Cutting planes: Gomory: 2 Implied bound: 58 Explored 0 nodes (43919 simplex iterations) in 77.80 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.138280000000e+05, best bound 1.138211124498e+05, gap 0.0061%