Gurobi 5.0.1 (linux64) logging started Wed Apr 24 05:49:54 2013 Optimize a model with 80278 rows, 79388 columns and 317018 nonzeros Presolve removed 89 rows and 0 columns Presolve time: 0.38s Presolved: 80189 rows, 79388 columns, 316929 nonzeros Variable types: 79299 continuous, 89 integer (89 binary) Warning: Markowitz tolerance tightened to 0.03125 Root simplex log... Iteration Objective Primal Inf. Dual Inf. Time 7932 8.0586745e+04 2.995702e+04 0.000000e+00 5s 9552 8.2085691e+04 8.106246e+04 0.000000e+00 10s 11334 8.2739392e+04 1.938339e+02 0.000000e+00 15s 11611 8.2748883e+04 0.000000e+00 0.000000e+00 16s Root relaxation: objective 8.274888e+04, 11611 iterations, 16.02 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 82748.8834 0 70 - 82748.8834 - - 16s H 0 0 157243.00000 82748.8834 47.4% - 31s 0 0 120441.599 0 14 157243.000 120441.599 23.4% - 52s H 0 0 143631.97054 120441.599 16.1% - 52s H 0 0 136268.00000 120441.599 11.6% - 52s 0 0 124522.815 0 8 136268.000 124522.815 8.62% - 57s H 0 0 132323.00000 124522.815 5.89% - 57s 0 0 125150.461 0 6 132323.000 125150.461 5.42% - 59s 0 0 125390.956 0 5 132323.000 125390.956 5.24% - 60s H 0 0 131582.30254 125390.956 4.71% - 60s H 0 0 129764.00000 125390.956 3.37% - 60s H 0 0 125684.00000 125390.956 0.23% - 61s 0 0 125418.357 0 3 125684.000 125418.357 0.21% - 61s 0 2 125420.225 0 3 125684.000 125420.225 0.21% - 63s * 7 4 6 125661.00000 125516.380 0.12% 205 65s Cutting planes: Gomory: 2 Implied bound: 87 Explored 13 nodes (32022 simplex iterations) in 65.87 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.256610000000e+05, best bound 1.256507662338e+05, gap 0.0081%