Gurobi 5.0.1 (linux64) logging started Mon Feb 4 17:17:02 2013 Optimize a model with 5488 rows, 1024 columns and 16896 nonzeros Presolve removed 1080 rows and 531 columns Presolve time: 0.04s Presolved: 4408 rows, 493 columns, 13716 nonzeros Variable types: 17 continuous, 476 integer (476 binary) Found heuristic solution: objective 21375.000000 Root relaxation: objective 1.467089e+04, 3077 iterations, 0.08 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 14670.8889 0 6 21375.0000 14670.8889 31.4% - 0s H 0 0 14684.000000 14670.8889 0.09% - 0s H 0 0 14677.000000 14670.8889 0.04% - 0s 0 0 14671.7978 0 14 14677.0000 14671.7978 0.04% - 0s 0 0 14671.7978 0 6 14677.0000 14671.7978 0.04% - 0s 0 0 14672.5115 0 12 14677.0000 14672.5115 0.03% - 0s 0 0 14673.1995 0 9 14677.0000 14673.1995 0.03% - 0s 0 0 14673.9499 0 17 14677.0000 14673.9499 0.02% - 0s 0 0 14674.2849 0 16 14677.0000 14674.2849 0.02% - 0s 0 1 14674.3333 0 16 14677.0000 14674.3333 0.02% - 0s Cutting planes: Gomory: 2 Cover: 1 MIR: 4 Explored 5 nodes (3238 simplex iterations) in 0.19 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.467700000000e+04, best bound 1.467600000000e+04, gap 0.0068%