Gurobi 5.0.1 (linux64) logging started Fri Jan 18 01:40:27 2013 Optimize a model with 130 rows, 930 columns and 5065 nonzeros Presolve removed 5 rows and 145 columns Presolve time: 0.01s Presolved: 125 rows, 785 columns, 4565 nonzeros Variable types: 755 continuous, 30 integer (30 binary) Root relaxation: objective 1.121714e+04, 41 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 11217.1409 0 3 - 11217.1409 - - 0s 0 0 11217.2101 0 6 - 11217.2101 - - 0s 0 0 11217.2748 0 6 - 11217.2748 - - 0s 0 0 11247.0614 0 2 - 11247.0614 - - 0s 0 0 11247.0614 0 2 - 11247.0614 - - 0s H 0 0 11567.876096 11247.0614 2.77% - 0s 0 2 11247.7111 0 2 11567.8761 11247.7111 2.77% - 0s * 6 4 5 11250.387904 11247.8041 0.02% 5.8 0s Cutting planes: Gomory: 1 Flow cover: 2 Explored 10 nodes (177 simplex iterations) in 0.07 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.125038790425e+04, best bound 1.124996025514e+04, gap 0.0038%