Gurobi 5.0.1 (linux64) logging started Wed Apr 24 03:50:34 2013 Optimize a model with 891 rows, 65691 columns and 131301 nonzeros Presolve time: 0.10s Presolved: 891 rows, 65691 columns, 131301 nonzeros Variable types: 65610 continuous, 81 integer (81 binary) Root relaxation: objective 1.152740e+05, 3026 iterations, 0.11 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 115273.963 0 6 - 115273.963 - - 0s H 0 0 117866.00000 115273.963 2.20% - 0s H 0 0 117749.00000 115273.963 2.10% - 0s 0 0 115446.217 0 3 117749.000 115446.217 1.96% - 0s H 0 0 117191.79167 115446.217 1.49% - 0s H 0 0 115866.00000 115446.217 0.36% - 0s 0 0 115506.508 0 4 115866.000 115506.508 0.31% - 0s 0 0 115506.508 0 6 115866.000 115506.508 0.31% - 0s 0 0 115506.508 0 3 115866.000 115506.508 0.31% - 1s 0 0 115507.172 0 2 115866.000 115507.172 0.31% - 1s 0 0 115535.217 0 1 115866.000 115535.217 0.29% - 1s 0 0 115542.115 0 3 115866.000 115542.115 0.28% - 1s 0 0 115546.261 0 1 115866.000 115546.261 0.28% - 1s 0 0 115546.261 0 1 115866.000 115546.261 0.28% - 1s 0 0 115546.261 0 1 115866.000 115546.261 0.28% - 1s 0 0 115546.261 0 1 115866.000 115546.261 0.28% - 1s 0 0 115546.261 0 1 115866.000 115546.261 0.28% - 1s 0 2 115547.631 0 1 115866.000 115547.631 0.27% - 1s H 9 4 115852.00000 115701.055 0.13% 69.4 2s * 14 2 8 115828.00000 115701.055 0.11% 65.6 2s * 19 2 6 115814.00000 115777.714 0.03% 67.2 2s Cutting planes: Implied bound: 78 Flow cover: 1 Explored 22 nodes (7031 simplex iterations) in 2.43 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.158140000000e+05, best bound 1.158140000000e+05, gap 0.0%