Gurobi 5.0.1 (linux64) logging started Wed Apr 24 04:00:06 2013 Optimize a model with 68142 rows, 67322 columns and 269042 nonzeros Presolve removed 3507 rows and 0 columns Presolve time: 0.45s Presolved: 64635 rows, 67322 columns, 262028 nonzeros Variable types: 67240 continuous, 82 integer (82 binary) Root relaxation: objective 1.015035e+05, 15290 iterations, 3.44 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 101503.474 0 4 - 101503.474 - - 4s H 0 0 104226.00000 101503.474 2.61% - 4s H 0 0 104097.00000 101503.474 2.49% - 4s H 0 0 101823.00000 101503.474 0.31% - 4s 0 0 101503.990 0 5 101823.000 101503.990 0.31% - 4s 0 0 101503.990 0 5 101823.000 101503.990 0.31% - 5s 0 0 101505.672 0 2 101823.000 101505.672 0.31% - 6s 0 0 101505.672 0 2 101823.000 101505.672 0.31% - 9s 0 0 101505.706 0 3 101823.000 101505.706 0.31% - 9s 0 2 101509.069 0 3 101823.000 101509.069 0.31% - 10s H 1 1 101653.95000 101509.069 0.14% 0.0 10s H 3 0 101623.19512 101564.165 0.06% 40.0 10s * 11 0 6 101594.00000 101594.000 0.0% 27.8 11s Cutting planes: Gomory: 1 Flow cover: 2 Explored 12 nodes (21316 simplex iterations) in 11.07 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.015940000000e+05, best bound 1.015940000000e+05, gap 0.0%