Gurobi 5.0.1 (linux64) logging started Fri Jan 18 00:19:36 2013 Optimize a model with 1100 rows, 25850 columns and 53800 nonzeros Presolve removed 50 rows and 50 columns Presolve time: 0.14s Presolved: 1050 rows, 25800 columns, 53250 nonzeros Variable types: 25600 continuous, 200 integer (200 binary) Root relaxation: objective 1.959342e+05, 1917 iterations, 0.09 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 195934.242 0 9 - 195934.242 - - 0s 0 0 196067.200 0 9 - 196067.200 - - 0s 0 0 196080.939 0 9 - 196080.939 - - 0s 0 0 196081.232 0 10 - 196081.232 - - 0s 0 0 196082.086 0 9 - 196082.086 - - 0s 0 0 196082.086 0 9 - 196082.086 - - 0s 0 0 196082.086 0 9 - 196082.086 - - 0s 0 0 196082.086 0 9 - 196082.086 - - 1s 0 0 196082.086 0 9 - 196082.086 - - 1s H 0 0 198811.31243 196082.086 1.37% - 1s 0 2 196084.568 0 9 198811.312 196084.568 1.37% - 1s H 27 8 196635.11475 196303.584 0.17% 20.5 3s * 47 12 46 196634.77699 196303.584 0.17% 13.9 3s * 52 8 4 196570.65000 196434.722 0.07% 18.7 3s Cutting planes: Flow cover: 9 Explored 61 nodes (3966 simplex iterations) in 3.64 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.965706500001e+05, best bound 1.965529812064e+05, gap 0.0090%