Gurobi 5.0.1 (linux64) logging started Wed Apr 24 06:15:17 2013 Optimize a model with 83811 rows, 82901 columns and 331331 nonzeros Presolve removed 6850 rows and 0 columns Presolve time: 0.57s Presolved: 76961 rows, 82901 columns, 317631 nonzeros Variable types: 82810 continuous, 91 integer (91 binary) Root relaxation: objective 1.249907e+05, 18714 iterations, 4.86 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 124990.727 0 3 - 124990.727 - - 5s H 0 0 126373.00000 124990.727 1.09% - 5s 0 0 124991.336 0 4 126373.000 124991.336 1.09% - 6s 0 0 124991.336 0 4 126373.000 124991.336 1.09% - 7s 0 0 124991.505 0 4 126373.000 124991.505 1.09% - 7s H 0 0 125408.00000 124991.505 0.33% - 9s 0 0 124991.505 0 3 125408.000 124991.505 0.33% - 13s 0 0 124991.505 0 4 125408.000 124991.505 0.33% - 13s 0 0 124991.783 0 4 125408.000 124991.783 0.33% - 13s 0 2 124998.404 0 4 125408.000 124998.404 0.33% - 15s H 14 8 125276.00000 125072.396 0.16% 82.6 16s H 15 9 125274.00000 125072.396 0.16% 80.7 16s H 16 10 125269.00000 125072.396 0.16% 78.1 16s * 18 9 15 125253.00000 125072.396 0.14% 73.4 16s Cutting planes: Gomory: 1 Flow cover: 3 Explored 43 nodes (27705 simplex iterations) in 18.05 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.252530000000e+05, best bound 1.252530000000e+05, gap 0.0%