Gurobi 5.0.1 (linux64) logging started Thu Jan 17 23:46:46 2013 Optimize a model with 1000 rows, 25550 columns and 51900 nonzeros Presolve removed 50 rows and 50 columns Presolve time: 0.15s Presolved: 950 rows, 25500 columns, 51600 nonzeros Variable types: 25350 continuous, 150 integer (150 binary) Root relaxation: objective 1.959342e+05, 2193 iterations, 0.08 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 195934.242 0 6 - 195934.242 - - 0s 0 0 196095.435 0 6 - 196095.435 - - 0s 0 0 196129.269 0 6 - 196129.269 - - 0s 0 0 196132.645 0 8 - 196132.645 - - 0s 0 0 196132.645 0 8 - 196132.645 - - 0s 0 0 196133.929 0 6 - 196133.929 - - 0s 0 0 196135.835 0 6 - 196135.835 - - 0s 0 0 196136.638 0 6 - 196136.638 - - 0s 0 0 196137.560 0 6 - 196137.560 - - 0s 0 0 196137.904 0 6 - 196137.904 - - 1s 0 0 196142.935 0 6 - 196142.935 - - 1s 0 0 196143.349 0 6 - 196143.349 - - 1s 0 0 196144.860 0 6 - 196144.860 - - 1s 0 0 196145.514 0 6 - 196145.514 - - 1s 0 0 196145.556 0 6 - 196145.556 - - 1s 0 0 196145.556 0 6 - 196145.556 - - 1s H 0 0 199359.35265 196145.556 1.61% - 1s H 0 0 197545.93233 196145.556 0.71% - 1s 0 2 196160.267 0 6 197545.932 196160.267 0.70% - 1s * 15 8 14 196562.61813 196330.753 0.12% 41.0 2s Cutting planes: Flow cover: 16 Explored 23 nodes (3935 simplex iterations) in 2.54 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.965626181321e+05, best bound 1.965529812064e+05, gap 0.0049%