Gurobi 5.0.1 (linux64) logging started Thu Jan 17 23:17:39 2013 Optimize a model with 800 rows, 25400 columns and 50850 nonzeros Presolve removed 100 rows and 150 columns Presolve time: 0.14s Presolved: 700 rows, 25250 columns, 50500 nonzeros Variable types: 25200 continuous, 50 integer (50 binary) Root relaxation: objective 2.246016e+05, 1811 iterations, 0.09 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 224601.597 0 1 - 224601.597 - - 0s H 0 0 225547.53148 224601.597 0.42% - 0s 0 0 224601.597 0 1 225547.531 224601.597 0.42% - 0s 0 0 224601.597 0 1 225547.531 224601.597 0.42% - 0s 0 0 224601.597 0 1 225547.531 224601.597 0.42% - 0s 0 0 224601.597 0 1 225547.531 224601.597 0.42% - 0s 0 0 224601.597 0 1 225547.531 224601.597 0.42% - 0s 0 2 224703.255 0 1 225547.531 224703.255 0.37% - 0s * 4 1 3 224847.24808 224847.248 0.0% 72.5 0s Cutting planes: Flow cover: 4 Explored 5 nodes (2308 simplex iterations) in 0.89 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 2.248472480793e+05, best bound 2.248472480793e+05, gap 0.0%