Gurobi 5.0.1 (linux64) logging started Fri Jan 18 05:40:46 2013 Optimize a model with 140 rows, 6030 columns and 17040 nonzeros Presolve removed 10 rows and 10 columns Presolve time: 0.01s Presolved: 130 rows, 6020 columns, 12030 nonzeros Variable types: 6020 continuous, 0 integer (0 binary) Root relaxation: objective 1.836170e+04, 107 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 18361.7044 0 1 - 18361.7044 - - 0s 0 2 18361.7044 0 1 - 18361.7044 - - 0s * 39 13 20 18419.009955 18418.1829 0.00% 9.9 0s Explored 40 nodes (492 simplex iterations) in 0.13 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.841900995515e+04, best bound 1.841818287240e+04, gap 0.0045%