Gurobi 5.0.1 (linux64) logging started Mon Dec 10 23:41:56 2012 Optimize a model with 2190 rows, 2160 columns and 7149 nonzeros Presolve removed 105 rows and 61 columns Presolve time: 0.02s Presolved: 2085 rows, 2099 columns, 6905 nonzeros Variable types: 1396 continuous, 703 integer (703 binary) Root relaxation: objective 1.796482e+05, 1040 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 179648.201 0 339 - 179648.201 - - 0s H 0 0 282823.00000 179648.201 36.5% - 0s 0 0 221232.402 0 81 282823.000 221232.402 21.8% - 0s 0 0 222611.240 0 61 282823.000 222611.240 21.3% - 0s 0 0 222986.055 0 48 282823.000 222986.055 21.2% - 0s H 0 0 227201.00000 222986.055 1.86% - 0s 0 0 223025.817 0 37 227201.000 223025.817 1.84% - 0s 0 0 223057.646 0 32 227201.000 223057.646 1.82% - 0s 0 0 223073.289 0 37 227201.000 223073.289 1.82% - 0s 0 2 223074.163 0 37 227201.000 223074.163 1.82% - 0s H 59 59 225636.00000 223076.197 1.13% 5.2 0s H 202 201 224965.00000 223076.197 0.84% 4.3 0s * 206 188 188 224580.00000 223076.197 0.67% 4.3 0s H 600 268 223522.00000 223105.143 0.19% 5.9 0s H 719 271 223501.00000 223107.470 0.18% 8.1 1s H 809 242 223437.00000 223131.278 0.14% 8.0 1s * 2321 650 104 223393.00000 223230.881 0.07% 5.9 3s * 2780 619 101 223357.00000 223245.882 0.05% 5.5 3s 4574 1012 223330.218 43 17 223357.000 223284.096 0.03% 4.7 5s Cutting planes: Gomory: 27 Cover: 2 Implied bound: 1 Flow cover: 122 Flow path: 84 Explored 8240 nodes (35143 simplex iterations) in 7.43 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 2.233569999999e+05, best bound 2.233346977574e+05, gap 0.0100%