Gurobi 5.0.1 (linux64) logging started Mon Dec 10 23:40:46 2012 Optimize a model with 2190 rows, 2160 columns and 7147 nonzeros Presolve removed 90 rows and 51 columns Presolve time: 0.02s Presolved: 2100 rows, 2109 columns, 6946 nonzeros Variable types: 1400 continuous, 709 integer (709 binary) Root relaxation: objective 1.851315e+05, 1058 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 185131.496 0 365 - 185131.496 - - 0s H 0 0 298981.00000 185131.496 38.1% - 0s H 0 0 295565.00000 185131.496 37.4% - 0s 0 0 229199.028 0 103 295565.000 229199.028 22.5% - 0s 0 0 230802.763 0 72 295565.000 230802.763 21.9% - 0s 0 0 231244.451 0 45 295565.000 231244.451 21.8% - 0s 0 0 231304.392 0 21 295565.000 231304.392 21.7% - 0s 0 0 231306.831 0 21 295565.000 231306.831 21.7% - 0s H 0 0 295539.00000 231306.831 21.7% - 0s 0 2 231307.961 0 21 295539.000 231307.961 21.7% - 0s H 27 27 232674.00000 231309.259 0.59% 3.9 0s H 100 34 231908.00000 231309.259 0.26% 4.5 0s * 185 99 68 231869.00000 231317.685 0.24% 4.3 0s * 415 158 45 231555.00000 231333.122 0.10% 4.1 0s * 479 177 59 231513.00000 231335.136 0.08% 4.0 0s H 600 213 231463.00000 231339.952 0.05% 3.9 0s H 747 167 231428.00000 231415.123 0.01% 5.0 1s Cutting planes: Gomory: 18 Cover: 1 Flow cover: 98 Flow path: 73 Explored 747 nodes (5399 simplex iterations) in 1.19 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 2.314279999999e+05, best bound 2.314151226893e+05, gap 0.0056%