Gurobi 5.0.1 (linux64) logging started Fri Jan 18 04:33:47 2013 Optimize a model with 10800 rows, 45150 columns and 120250 nonzeros Presolve removed 50 rows and 50 columns Presolve time: 0.29s Presolved: 10750 rows, 45100 columns, 110200 nonzeros Variable types: 35100 continuous, 10000 integer (10000 binary) Root relaxation: objective 2.246016e+05, 4783 iterations, 0.20 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 224601.597 0 2 - 224601.597 - - 0s H 0 0 225712.94553 224601.597 0.49% - 0s 0 0 224603.813 0 2 225712.946 224603.813 0.49% - 0s 0 0 224604.903 0 6 225712.946 224604.903 0.49% - 1s H 0 0 224847.24808 224604.903 0.11% - 1s 0 0 224607.644 0 4 224847.248 224607.644 0.11% - 1s 0 0 224607.896 0 4 224847.248 224607.896 0.11% - 1s 0 0 224609.094 0 4 224847.248 224609.094 0.11% - 1s 0 0 224609.259 0 4 224847.248 224609.259 0.11% - 1s 0 0 224610.427 0 4 224847.248 224610.427 0.11% - 1s 0 0 224610.741 0 4 224847.248 224610.741 0.11% - 2s 0 0 224659.632 0 6 224847.248 224659.632 0.08% - 2s 0 0 224661.726 0 4 224847.248 224661.726 0.08% - 2s 0 0 224661.807 0 2 224847.248 224661.807 0.08% - 2s 0 0 224661.807 0 2 224847.248 224661.807 0.08% - 2s 0 2 224661.807 0 2 224847.248 224661.807 0.08% - 3s Cutting planes: Gomory: 2 Implied bound: 17 Flow cover: 1 Explored 8 nodes (7126 simplex iterations) in 3.34 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 2.248472480793e+05, best bound 2.248472480793e+05, gap 0.0%