Gurobi 5.0.1 (linux64) logging started Sun Dec 9 21:45:07 2012 Optimize a model with 5970 rows, 5940 columns and 22666 nonzeros Presolve removed 309 rows and 44 columns Presolve time: 0.03s Presolved: 5661 rows, 5896 columns, 22015 nonzeros Variable types: 5545 continuous, 351 integer (351 binary) Root relaxation: objective 1.254541e+05, 542 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 125454.136 0 8 - 125454.136 - - 0s H 0 0 126398.00000 125454.136 0.75% - 0s H 0 0 126055.00000 125454.136 0.48% - 0s 0 0 125464.003 0 15 126055.000 125464.003 0.47% - 0s 0 0 125469.809 0 16 126055.000 125469.809 0.46% - 0s 0 0 125471.233 0 13 126055.000 125471.233 0.46% - 0s H 0 0 125789.00000 125471.233 0.25% - 0s H 0 0 125671.00000 125471.233 0.16% - 0s 0 0 125471.233 0 8 125671.000 125471.233 0.16% - 0s 0 0 125471.233 0 13 125671.000 125471.233 0.16% - 0s 0 2 125475.648 0 13 125671.000 125475.648 0.16% - 0s * 9 8 7 125554.00000 125497.007 0.05% 2.8 0s * 18 3 5 125540.00000 125513.966 0.02% 2.9 0s * 21 1 6 125534.00000 125523.538 0.01% 2.8 0s Cutting planes: Gomory: 2 Flow cover: 4 Explored 22 nodes (991 simplex iterations) in 0.31 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.255340000000e+05, best bound 1.255235382499e+05, gap 0.0083%