Gurobi 5.0.1 (linux64) logging started Wed Apr 24 00:57:49 2013 Optimize a model with 14896 rows, 14516 columns and 57836 nonzeros Presolve removed 38 rows and 0 columns Presolve time: 0.06s Presolved: 14858 rows, 14516 columns, 57798 nonzeros Variable types: 14478 continuous, 38 integer (38 binary) Root relaxation: objective 3.514978e+04, 1980 iterations, 0.38 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 35149.7805 0 27 - 35149.7805 - - 0s H 0 0 40588.000000 35149.7805 13.4% - 0s 0 0 38866.3048 0 4 40588.0000 38866.3048 4.24% - 1s H 0 0 40312.472813 38866.3048 3.59% - 1s H 0 0 39276.000000 38866.3048 1.04% - 1s 0 0 38882.5033 0 4 39276.0000 38882.5033 1.00% - 1s 0 0 38882.5329 0 3 39276.0000 38882.5329 1.00% - 1s H 0 0 38938.000000 38882.5329 0.14% - 1s 0 2 38886.0116 0 2 38938.0000 38886.0116 0.13% - 1s * 10 0 3 38908.000000 38908.0000 0.0% 81.7 1s Cutting planes: Gomory: 2 Implied bound: 27 Explored 11 nodes (3633 simplex iterations) in 1.70 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 3.890800000000e+04, best bound 3.890800000000e+04, gap 0.0%