Gurobi 5.0.1 (linux64) logging started Wed Apr 24 07:02:38 2013 Optimize a model with 87606 rows, 86676 columns and 346146 nonzeros Presolve removed 93 rows and 0 columns Presolve time: 0.43s Presolved: 87513 rows, 86676 columns, 346053 nonzeros Variable types: 86583 continuous, 93 integer (93 binary) Root simplex log... Iteration Objective Primal Inf. Dual Inf. Time 9558 8.0814372e+04 2.211758e+05 0.000000e+00 5s Warning: Markowitz tolerance tightened to 0.03125 11238 8.2201340e+04 8.353053e+04 0.000000e+00 10s 12750 8.2591199e+04 2.067060e-02 0.000000e+00 15s 12762 8.2591225e+04 0.000000e+00 0.000000e+00 15s Root relaxation: objective 8.259122e+04, 12762 iterations, 15.10 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 82591.2247 0 75 - 82591.2247 - - 16s H 0 0 159420.00000 82591.2247 48.2% - 24s 0 0 109052.717 0 19 159420.000 109052.717 31.6% - 50s H 0 0 152802.98704 109052.717 28.6% - 51s H 0 0 127472.00000 109052.717 14.4% - 52s 0 0 117579.165 0 8 127472.000 117579.165 7.76% - 59s 0 0 118679.298 0 5 127472.000 118679.298 6.90% - 63s H 0 0 125089.00000 118679.298 5.12% - 63s 0 0 119072.412 0 3 125089.000 119072.412 4.81% - 64s H 0 0 124064.75876 119072.412 4.02% - 66s H 0 0 121006.67778 119072.412 1.60% - 66s 0 2 119073.132 0 3 121006.678 119073.132 1.60% - 68s H 2 2 120023.60227 119087.522 0.78% 52.5 68s H 4 4 119709.73458 119089.383 0.52% 68.2 68s H 8 6 119411.21237 119094.504 0.27% 156 70s H 10 5 119358.80800 119094.504 0.22% 175 70s H 11 5 119276.16505 119094.504 0.15% 174 70s * 15 6 14 119257.00000 119094.504 0.14% 149 71s * 40 4 25 119229.00000 119166.933 0.05% 108 74s Cutting planes: Implied bound: 93 Explored 44 nodes (35496 simplex iterations) in 74.77 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.192290000000e+05, best bound 1.192220000000e+05, gap 0.0059%