Gurobi 5.0.1 (linux64) logging started Sat Dec 8 03:30:35 2012 Optimize a model with 1635 rows, 1620 columns and 5912 nonzeros Presolve removed 202 rows and 58 columns Presolve time: 0.02s Presolved: 1433 rows, 1562 columns, 5470 nonzeros Variable types: 1392 continuous, 170 integer (170 binary) Root relaxation: objective 6.108313e+04, 244 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 61083.1310 0 3 - 61083.1310 - - 0s H 0 0 61511.000000 61083.1310 0.70% - 0s H 0 0 61177.000000 61083.1310 0.15% - 0s 0 0 61088.2888 0 8 61177.0000 61088.2888 0.15% - 0s 0 0 61088.2888 0 3 61177.0000 61088.2888 0.15% - 0s 0 0 61088.2888 0 8 61177.0000 61088.2888 0.15% - 0s 0 0 61091.2901 0 5 61177.0000 61091.2901 0.14% - 0s 0 1 61102.4286 0 5 61177.0000 61102.4286 0.12% - 0s * 9 0 3 61128.000000 61128.0000 0.0% 2.1 0s Cutting planes: Gomory: 1 Explored 10 nodes (410 simplex iterations) in 0.07 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 6.112800000000e+04, best bound 6.112800000000e+04, gap 0.0%