Gurobi 5.0.1 (linux64) logging started Fri Jan 18 00:59:02 2013 Optimize a model with 1200 rows, 28550 columns and 66550 nonzeros Presolve removed 50 rows and 1250 columns Presolve time: 0.13s Presolved: 1150 rows, 27300 columns, 64550 nonzeros Variable types: 27050 continuous, 250 integer (250 binary) Root relaxation: objective 1.650739e+05, 2479 iterations, 0.10 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 165073.856 0 6 - 165073.856 - - 0s 0 0 165130.023 0 6 - 165130.023 - - 0s 0 0 165136.243 0 6 - 165136.243 - - 0s 0 0 165136.243 0 6 - 165136.243 - - 0s 0 0 165136.243 0 6 - 165136.243 - - 0s 0 0 165136.302 0 6 - 165136.302 - - 0s 0 0 165136.302 0 6 - 165136.302 - - 0s H 0 0 181428.65903 165136.302 8.98% - 0s 0 2 165143.759 0 6 181428.659 165143.759 8.98% - 1s * 14 5 14 165621.28759 165529.369 0.06% 30.6 1s Cutting planes: Flow cover: 9 Explored 25 nodes (3784 simplex iterations) in 1.86 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.656212875856e+05, best bound 1.656212875856e+05, gap 0.0%