Gurobi 5.0.1 (linux64) logging started Fri Jan 18 06:09:52 2013 Optimize a model with 700 rows, 50150 columns and 125200 nonzeros Presolve removed 50 rows and 50 columns Presolve time: 0.15s Presolved: 650 rows, 50100 columns, 100150 nonzeros Variable types: 50100 continuous, 0 integer (0 binary) Root relaxation: objective 2.208160e+05, 2585 iterations, 0.18 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 220815.985 0 4 - 220815.985 - - 0s 0 2 220815.985 0 4 - 220815.985 - - 1s * 52 12 26 221476.99200 221214.319 0.12% 42.3 2s Explored 64 nodes (4959 simplex iterations) in 2.63 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 2.214769919976e+05, best bound 2.214758501702e+05, gap 0.0005%