Gurobi 5.0.1 (linux64) logging started Mon Feb 4 17:17:03 2013 Optimize a model with 5488 rows, 1024 columns and 16896 nonzeros Presolve removed 712 rows and 516 columns Presolve time: 0.04s Presolved: 4776 rows, 508 columns, 14878 nonzeros Variable types: 19 continuous, 489 integer (489 binary) Found heuristic solution: objective 18042.000000 Root relaxation: objective 1.139313e+04, 2129 iterations, 0.06 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 11393.1333 0 10 18042.0000 11393.1333 36.9% - 0s H 0 0 11409.000000 11393.1333 0.14% - 0s H 0 0 11403.000000 11393.1333 0.09% - 0s 0 0 11393.1333 0 20 11403.0000 11393.1333 0.09% - 0s 0 0 11393.1333 0 9 11403.0000 11393.1333 0.09% - 0s 0 0 11393.1333 0 32 11403.0000 11393.1333 0.09% - 0s 0 0 11393.1333 0 16 11403.0000 11393.1333 0.09% - 0s 0 0 11393.1333 0 30 11403.0000 11393.1333 0.09% - 0s H 0 0 11401.000000 11393.1333 0.07% - 0s 0 0 11393.1333 0 24 11401.0000 11393.1333 0.07% - 0s 0 2 11393.1333 0 22 11401.0000 11393.1333 0.07% - 0s H 471 196 11399.000000 11393.6307 0.05% 14.5 0s Cutting planes: Gomory: 8 Implied bound: 3 MIR: 39 Zero half: 17 Explored 3684 nodes (39391 simplex iterations) in 1.39 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.139900000000e+04, best bound 1.139800000000e+04, gap 0.0088%