Gurobi 5.0.1 (linux64) logging started Wed Apr 24 00:57:33 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 3.625706e+04, 2038 iterations, 0.33 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 36257.0611 0 31 - 36257.0611 - - 0s H 0 0 42398.000000 36257.0611 14.5% - 0s 0 0 40478.3429 0 2 42398.0000 40478.3429 4.53% - 1s H 0 0 40989.528571 40478.3429 1.25% - 1s H 0 0 40936.000000 40478.3429 1.12% - 1s H 0 0 40480.000000 40478.3429 0.00% - 1s Cutting planes: Gomory: 1 Implied bound: 26 Explored 0 nodes (2856 simplex iterations) in 1.08 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 4.048000000000e+04, best bound 4.047834285714e+04, gap 0.0041%