Gurobi 5.0.1 (linux64) logging started Thu Jan 17 23:16:44 2013 Optimize a model with 900 rows, 25300 columns and 50850 nonzeros Presolve removed 200 rows and 150 columns Presolve time: 0.13s Presolved: 700 rows, 25150 columns, 50450 nonzeros Variable types: 25100 continuous, 50 integer (50 binary) Root relaxation: objective 2.208160e+05, 1348 iterations, 0.06 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 H 0 0 227372.29867 220815.985 2.88% - 0s H 0 0 223266.22477 220815.985 1.10% - 0s 0 2 220824.349 0 4 223266.225 220824.349 1.09% - 0s H 2 2 221438.01561 221020.715 0.19% 44.0 0s * 6 1 6 221424.70359 221131.433 0.13% 39.3 0s Explored 11 nodes (1835 simplex iterations) in 0.64 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 2.214247035946e+05, best bound 2.214247035946e+05, gap 0.0%