Gurobi 5.0.1 (linux64) logging started Fri Jan 18 00:55:27 2013 Optimize a model with 140 rows, 1230 columns and 2640 nonzeros Presolve removed 10 rows and 10 columns Presolve time: 0.00s Presolved: 130 rows, 1220 columns, 2430 nonzeros Variable types: 1220 continuous, 0 integer (0 binary) Root relaxation: objective 1.836170e+04, 101 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 H 0 0 18423.142900 18361.7044 0.33% - 0s 0 2 18361.7044 0 1 18423.1429 18361.7044 0.33% - 0s * 21 3 11 18418.150058 18417.4129 0.00% 2.2 0s Explored 22 nodes (147 simplex iterations) in 0.02 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.841815005800e+04, best bound 1.841741285274e+04, gap 0.0040%