Gurobi 5.0.1 (linux64) logging started Thu Jan 17 23:16:53 2013 Optimize a model with 900 rows, 25300 columns and 50850 nonzeros Presolve removed 200 rows and 150 columns Presolve time: 0.23s Presolved: 700 rows, 25150 columns, 50450 nonzeros Variable types: 25100 continuous, 50 integer (50 binary) Root relaxation: objective 2.198499e+05, 1265 iterations, 0.08 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 219849.939 0 2 - 219849.939 - - 0s H 0 0 224116.92822 219849.939 1.90% - 0s 0 2 219874.558 0 2 224116.928 219874.558 1.89% - 0s * 7 5 7 220916.27003 220841.109 0.03% 60.3 0s Explored 11 nodes (1868 simplex iterations) in 0.90 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 2.209162700342e+05, best bound 2.209162700342e+05, gap 0.0%