Gurobi 5.0.1 (linux64) logging started Fri Jan 18 05:28:05 2013 Optimize a model with 2580 rows, 5265 columns and 18025 nonzeros Presolve removed 5 rows and 5 columns Presolve time: 0.18s Presolved: 2575 rows, 5260 columns, 15520 nonzeros Variable types: 2760 continuous, 2500 integer (2500 binary) Root relaxation: objective 1.204447e+04, 51 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 12044.4669 0 2 - 12044.4669 - - 0s 0 0 12049.2366 0 2 - 12049.2366 - - 0s 0 0 12051.0562 0 2 - 12051.0562 - - 0s 0 0 12052.4099 0 2 - 12052.4099 - - 0s 0 0 12053.3603 0 3 - 12053.3603 - - 0s 0 0 12053.5238 0 2 - 12053.5238 - - 0s 0 0 12053.5776 0 5 - 12053.5776 - - 0s 0 0 12054.4850 0 2 - 12054.4850 - - 0s 0 0 12054.9213 0 4 - 12054.9213 - - 0s 0 0 12055.3382 0 2 - 12055.3382 - - 0s 0 0 12055.9693 0 7 - 12055.9693 - - 0s 0 0 12056.1100 0 2 - 12056.1100 - - 0s 0 0 12056.2906 0 7 - 12056.2906 - - 0s 0 0 12056.8176 0 2 - 12056.8176 - - 0s 0 0 12057.4728 0 2 - 12057.4728 - - 0s 0 0 12057.6197 0 10 - 12057.6197 - - 0s 0 0 12058.0845 0 2 - 12058.0845 - - 0s 0 0 12058.3927 0 7 - 12058.3927 - - 0s 0 0 12058.6591 0 2 - 12058.6591 - - 0s 0 0 12058.8047 0 6 - 12058.8047 - - 0s 0 0 12058.8134 0 3 - 12058.8134 - - 0s 0 0 12058.9858 0 7 - 12058.9858 - - 0s 0 0 12059.2017 0 2 - 12059.2017 - - 0s 0 0 12059.3106 0 3 - 12059.3106 - - 0s 0 0 12059.3759 0 12 - 12059.3759 - - 0s 0 0 12059.5992 0 3 - 12059.5992 - - 0s 0 0 12059.6193 0 4 - 12059.6193 - - 0s 0 0 12059.6883 0 10 - 12059.6883 - - 0s 0 0 12059.7163 0 2 - 12059.7163 - - 0s 0 0 12059.7296 0 14 - 12059.7296 - - 1s 0 0 12060.2062 0 2 - 12060.2062 - - 1s 0 0 12060.2742 0 2 - 12060.2742 - - 1s 0 0 12060.4829 0 9 - 12060.4829 - - 1s 0 0 12060.6145 0 5 - 12060.6145 - - 1s 0 0 12060.6741 0 2 - 12060.6741 - - 1s 0 0 12060.7844 0 8 - 12060.7844 - - 1s 0 0 12061.1222 0 2 - 12061.1222 - - 1s 0 0 12061.1294 0 10 - 12061.1294 - - 1s 0 0 12061.2861 0 8 - 12061.2861 - - 1s 0 0 12061.5524 0 2 - 12061.5524 - - 1s 0 0 12061.5852 0 19 - 12061.5852 - - 1s 0 0 12061.6766 0 4 - 12061.6766 - - 1s 0 0 12061.7780 0 19 - 12061.7780 - - 1s 0 0 12061.9075 0 19 - 12061.9075 - - 1s 0 0 12061.9328 0 19 - 12061.9328 - - 1s 0 0 12061.9542 0 19 - 12061.9542 - - 1s 0 0 12061.9542 0 19 - 12061.9542 - - 1s 0 2 12061.9542 0 19 - 12061.9542 - - 2s * 17 5 9 12097.776310 12097.7757 0.00% 35.2 2s Cutting planes: Gomory: 1 Implied bound: 34 Flow cover: 9 Explored 18 nodes (1045 simplex iterations) in 2.25 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.209777630968e+04, best bound 1.209777571816e+04, gap 0.0000%