Gurobi 5.0.1 (linux64) logging started Fri Jan 18 04:02:54 2013 Optimize a model with 1070 rows, 3260 columns and 8505 nonzeros Presolve removed 10 rows and 15 columns Presolve time: 0.16s Presolved: 1060 rows, 3245 columns, 6490 nonzeros Variable types: 2250 continuous, 995 integer (995 binary) Root relaxation: objective 1.121714e+04, 28 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 1 - 11217.1409 - - 0s 0 0 11217.3168 0 2 - 11217.3168 - - 0s 0 0 11217.3681 0 2 - 11217.3681 - - 0s 0 0 11217.3681 0 2 - 11217.3681 - - 0s 0 2 11217.5322 0 2 - 11217.5322 - - 0s * 189 93 185 11429.777248 11250.4037 1.57% 1.9 0s * 194 0 9 11250.403664 11250.4037 0.0% 1.9 0s Cutting planes: Gomory: 1 Flow cover: 2 Explored 195 nodes (608 simplex iterations) in 0.77 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.125040366371e+04, best bound 1.125040366371e+04, gap 0.0%