Gurobi 5.0.1 (linux64) logging started Wed Apr 24 01:09:13 2013 Optimize a model with 24598 rows, 24108 columns and 96138 nonzeros Presolve removed 49 rows and 0 columns Presolve time: 0.10s Presolved: 24549 rows, 24108 columns, 96089 nonzeros Variable types: 24059 continuous, 49 integer (49 binary) Root relaxation: objective 4.726610e+04, 4017 iterations, 1.48 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 47266.0980 0 44 - 47266.0980 - - 1s H 0 0 62200.000000 47266.0980 24.0% - 2s 0 0 56981.8401 0 2 62200.0000 56981.8401 8.39% - 3s H 0 0 57379.468652 56981.8401 0.69% - 3s H 0 0 57123.000000 56981.8401 0.25% - 3s H 0 0 57072.000000 56981.8401 0.16% - 3s 0 0 57000.5289 0 1 57072.0000 57000.5289 0.13% - 4s 0 2 57001.9051 0 1 57072.0000 57001.9051 0.12% - 4s * 2 1 2 57032.000000 57032.0000 0.0% 100 4s Cutting planes: Implied bound: 40 Explored 3 nodes (6234 simplex iterations) in 4.44 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.703200000000e+04, best bound 5.703200000000e+04, gap 0.0%