Gurobi 5.0.1 (linux64) logging started Wed Apr 24 00:52:22 2013 Optimize a model with 6024 rows, 5784 columns and 23064 nonzeros Presolve removed 787 rows and 0 columns Presolve time: 0.03s Presolved: 5237 rows, 5784 columns, 21490 nonzeros Variable types: 5760 continuous, 24 integer (24 binary) Root relaxation: objective 2.806386e+04, 764 iterations, 0.03 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 28063.8571 0 1 - 28063.8571 - - 0s H 0 0 28081.000000 28063.8571 0.06% - 0s 0 0 28065.0340 0 2 28081.0000 28065.0340 0.06% - 0s 0 0 28065.6054 0 2 28081.0000 28065.6054 0.05% - 0s Cutting planes: Gomory: 1 Flow cover: 3 Explored 0 nodes (779 simplex iterations) in 0.12 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 2.808100000000e+04, best bound 2.808100000000e+04, gap 0.0%