Gurobi 5.0.1 (linux64) logging started Fri Jan 18 04:32:06 2013 Optimize a model with 10800 rows, 45150 columns and 120250 nonzeros Presolve removed 50 rows and 50 columns Presolve time: 0.30s Presolved: 10750 rows, 45100 columns, 110200 nonzeros Variable types: 35100 continuous, 10000 integer (10000 binary) Root relaxation: objective 1.650739e+05, 3955 iterations, 0.16 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 165073.856 0 4 - 165073.856 - - 0s 0 0 165258.687 0 8 - 165258.687 - - 1s 0 0 165289.798 0 6 - 165289.798 - - 1s 0 0 165319.213 0 10 - 165319.213 - - 1s 0 0 165367.771 0 6 - 165367.771 - - 1s 0 0 165367.815 0 10 - 165367.815 - - 1s 0 0 165368.310 0 10 - 165368.310 - - 1s 0 0 165368.310 0 10 - 165368.310 - - 2s 0 0 165368.310 0 10 - 165368.310 - - 2s 0 2 165368.310 0 10 - 165368.310 - - 3s 24 26 165847.555 12 2 - 165613.412 - 140 5s * 34 8 17 165622.03860 165613.412 0.01% 102 5s Cutting planes: Gomory: 1 Implied bound: 67 Flow cover: 4 Explored 35 nodes (8940 simplex iterations) in 5.22 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.656220386021e+05, best bound 1.656134116070e+05, gap 0.0052%