Gurobi 5.0.1 (linux64) logging started Wed Apr 24 08:28:21 2013 Optimize a model with 95157 rows, 94187 columns and 376457 nonzeros Presolve removed 3729 rows and 0 columns Presolve time: 0.67s Presolved: 91428 rows, 94187 columns, 368999 nonzeros Variable types: 94090 continuous, 97 integer (97 binary) Root relaxation: objective 1.321056e+05, 20256 iterations, 4.91 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 132105.553 0 4 - 132105.553 - - 5s H 0 0 136414.00000 132105.553 3.16% - 6s H 0 0 132732.00000 132105.553 0.47% - 6s 0 0 132106.136 0 5 132732.000 132106.136 0.47% - 7s H 0 0 132392.21094 132106.136 0.22% - 9s H 0 0 132314.00000 132106.136 0.16% - 9s 0 0 132106.833 0 2 132314.000 132106.833 0.16% - 12s 0 0 132108.517 0 4 132314.000 132108.517 0.16% - 12s 0 0 132108.517 0 4 132314.000 132108.517 0.16% - 12s 0 2 132119.061 0 4 132314.000 132119.061 0.15% - 14s 6 3 132238.045 3 1 132314.000 132238.045 0.06% 64.3 15s Cutting planes: Gomory: 2 Flow cover: 1 Explored 9 nodes (25614 simplex iterations) in 15.08 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.323140000000e+05, best bound 1.323030000000e+05, gap 0.0083%