Gurobi 5.0.1 (linux64) logging started Fri Jan 18 00:15:39 2013 Optimize a model with 110 rows, 440 columns and 1245 nonzeros Presolve removed 5 rows and 65 columns Presolve time: 0.00s Presolved: 105 rows, 375 columns, 1145 nonzeros Variable types: 355 continuous, 20 integer (20 binary) Root relaxation: objective 1.204447e+04, 47 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 12044.4669 0 2 - 12044.4669 - - 0s 0 0 12050.8923 0 4 - 12050.8923 - - 0s 0 0 12052.3280 0 4 - 12052.3280 - - 0s * 0 0 0 12097.681887 12097.6819 0.0% - 0s Cutting planes: Gomory: 1 Flow cover: 1 Explored 0 nodes (77 simplex iterations) in 0.01 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.209768188701e+04, best bound 1.209768188701e+04, gap 0.0%