Gurobi 5.0.1 (linux64) logging started Wed Apr 24 00:54:05 2013 Optimize a model with 9951 rows, 9641 columns and 38471 nonzeros Presolve removed 131 rows and 0 columns Presolve time: 0.05s Presolved: 9820 rows, 9641 columns, 38209 nonzeros Variable types: 9610 continuous, 31 integer (31 binary) Root relaxation: objective 2.650648e+04, 1029 iterations, 0.06 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 26506.4848 0 2 - 26506.4848 - - 0s H 0 0 26639.000000 26506.4848 0.50% - 0s 0 0 26513.3630 0 3 26639.0000 26513.3630 0.47% - 0s 0 0 26514.0955 0 4 26639.0000 26514.0955 0.47% - 0s 0 0 26514.1928 0 4 26639.0000 26514.1928 0.47% - 0s 0 0 26548.2333 0 2 26639.0000 26548.2333 0.34% - 0s 0 0 26561.7471 0 3 26639.0000 26561.7471 0.29% - 0s 0 2 26565.9408 0 3 26639.0000 26565.9408 0.27% - 0s Cutting planes: Gomory: 1 Flow cover: 3 Explored 6 nodes (1209 simplex iterations) in 0.48 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 2.663900000000e+04, best bound 2.663900000000e+04, gap 0.0%