Gurobi 5.0.1 (linux64) logging started Wed Apr 24 08:55:03 2013 Optimize a model with 97118 rows, 96138 columns and 384258 nonzeros Presolve removed 5927 rows and 0 columns Presolve time: 0.70s Presolved: 91191 rows, 96138 columns, 372404 nonzeros Variable types: 96040 continuous, 98 integer (98 binary) Root simplex log... Iteration Objective Primal Inf. Dual Inf. Time 19254 1.2216567e+05 6.996557e+02 0.000000e+00 5s 19867 1.2227952e+05 0.000000e+00 0.000000e+00 5s Root relaxation: objective 1.222795e+05, 19867 iterations, 5.44 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 122279.520 0 5 - 122279.520 - - 6s H 0 0 126166.00000 122279.520 3.08% - 7s H 0 0 123852.00000 122279.520 1.27% - 8s 0 0 122284.538 0 7 123852.000 122284.538 1.27% - 8s 0 0 122285.621 0 7 123852.000 122285.621 1.26% - 9s 0 0 122286.100 0 7 123852.000 122286.100 1.26% - 10s 0 0 122286.100 0 5 123852.000 122286.100 1.26% - 19s 0 0 122286.901 0 7 123852.000 122286.901 1.26% - 20s 0 0 122286.901 0 7 123852.000 122286.901 1.26% - 21s 0 2 122289.501 0 7 123852.000 122289.501 1.26% - 24s 2 5 122512.653 2 4 123852.000 122435.028 1.14% 351 25s H 5 5 123003.15466 122435.028 0.46% 249 25s H 8 8 122976.78431 122435.028 0.44% 191 26s H 10 10 122874.60000 122435.028 0.36% 179 26s * 11 10 10 122794.00000 122435.028 0.29% 171 26s H 27 10 122748.00000 122524.066 0.18% 133 27s * 29 9 8 122695.00000 122524.066 0.14% 136 27s Cutting planes: Gomory: 1 Flow cover: 8 Explored 39 nodes (38305 simplex iterations) in 28.24 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.226950000000e+05, best bound 1.226950000000e+05, gap 0.0%