Gurobi 5.0.1 (linux64) logging started Fri Jan 18 03:12:25 2013 Optimize a model with 5800 rows, 35150 columns and 85250 nonzeros Presolve removed 50 rows and 50 columns Presolve time: 0.21s Presolved: 5750 rows, 35100 columns, 80200 nonzeros Variable types: 30100 continuous, 5000 integer (5000 binary) Root relaxation: objective 1.959342e+05, 3670 iterations, 0.14 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 196133.111 0 4 - 196133.111 - - 0s 0 0 196140.257 0 4 - 196140.257 - - 0s 0 0 196140.322 0 4 - 196140.322 - - 0s 0 0 196140.322 0 4 - 196140.322 - - 1s H 0 0 196588.71393 196140.322 0.23% - 1s 0 2 196140.322 0 4 196588.714 196140.322 0.23% - 1s H 27 1 196570.65000 196379.694 0.10% 28.6 2s Cutting planes: Gomory: 2 Implied bound: 46 Flow cover: 3 Explored 65 nodes (5499 simplex iterations) in 2.80 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.965706500001e+05, best bound 1.965518272504e+05, gap 0.0096%