Gurobi 5.0.1 (linux64) logging started Fri Jan 18 05:40:45 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 2.162324e+04, 122 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 21623.2446 0 2 - 21623.2446 - - 0s 0 2 21623.2446 0 2 - 21623.2446 - - 0s * 2 2 1 22011.316113 21675.3035 1.53% 9.5 0s * 35 9 18 21759.395167 21747.3031 0.06% 3.3 0s Explored 45 nodes (242 simplex iterations) in 0.27 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 2.175939516730e+04, best bound 2.175786607313e+04, gap 0.0070%