Gurobi 5.0.1 (linux64) logging started Thu Jan 17 23:18:20 2013 Optimize a model with 800 rows, 25350 columns and 50950 nonzeros Presolve removed 50 rows and 50 columns Presolve time: 0.08s Presolved: 750 rows, 25300 columns, 50750 nonzeros Variable types: 25250 continuous, 50 integer (50 binary) Root relaxation: objective 2.246016e+05, 1684 iterations, 0.06 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 4 224847.24808 224777.808 0.03% 69.0 0s Cutting planes: Flow cover: 4 Explored 7 nodes (2562 simplex iterations) in 0.76 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%