Gurobi 5.0.1 (linux64) logging started Thu Jan 17 23:19:41 2013 Optimize a model with 700 rows, 25250 columns and 50500 nonzeros Presolve removed 50 rows and 50 columns Presolve time: 0.03s Presolved: 800 rows, 25300 columns, 50650 nonzeros Variable types: 25200 continuous, 100 integer (100 binary) Root relaxation: objective 1.626233e+05, 1728 iterations, 0.05 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 162623.326 0 10 - 162623.326 - - 0s H 0 0 172583.64524 162623.326 5.77% - 0s H 0 0 165485.65810 162623.326 1.73% - 0s 0 0 162707.646 0 10 165485.658 162707.646 1.68% - 0s H 0 0 163537.80026 162707.646 0.51% - 0s 0 0 162724.942 0 12 163537.800 162724.942 0.50% - 0s 0 0 162731.610 0 8 163537.800 162731.610 0.49% - 0s 0 0 162733.638 0 8 163537.800 162733.638 0.49% - 0s 0 0 162733.638 0 8 163537.800 162733.638 0.49% - 0s 0 0 162733.638 0 8 163537.800 162733.638 0.49% - 0s 0 0 162734.178 0 8 163537.800 162734.178 0.49% - 0s 0 0 162734.178 0 8 163537.800 162734.178 0.49% - 0s 0 0 162735.759 0 10 163537.800 162735.759 0.49% - 0s 0 0 162736.120 0 8 163537.800 162736.120 0.49% - 0s 0 0 162736.193 0 8 163537.800 162736.193 0.49% - 0s 0 0 162736.533 0 8 163537.800 162736.533 0.49% - 1s 0 0 162736.533 0 8 163537.800 162736.533 0.49% - 1s 0 0 162736.553 0 8 163537.800 162736.553 0.49% - 1s 0 0 162736.553 0 8 163537.800 162736.553 0.49% - 1s 0 2 162737.080 0 8 163537.800 162737.080 0.49% - 1s * 9 8 7 163385.85058 162844.892 0.33% 46.9 1s * 15 3 11 162910.04610 162861.229 0.03% 31.8 1s * 17 1 11 162887.15892 162861.229 0.02% 28.8 1s Cutting planes: Flow cover: 21 Explored 19 nodes (3044 simplex iterations) in 1.73 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.628871589165e+05, best bound 1.628871589165e+05, gap 0.0%