Gurobi 5.0.1 (linux64) logging started Wed Apr 24 04:52:04 2013 Optimize a model with 74906 rows, 74046 columns and 295926 nonzeros Presolve removed 7455 rows and 0 columns Presolve time: 0.49s Presolved: 67451 rows, 74046 columns, 281016 nonzeros Variable types: 73960 continuous, 86 integer (86 binary) Root relaxation: objective 1.254279e+05, 16515 iterations, 3.30 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 125427.907 0 5 - 125427.907 - - 3s H 0 0 134916.00000 125427.907 7.03% - 4s H 0 0 126561.00000 125427.907 0.90% - 4s 0 0 125437.742 0 10 126561.000 125437.742 0.89% - 5s 0 0 125437.962 0 10 126561.000 125437.962 0.89% - 5s 0 0 125438.020 0 11 126561.000 125438.020 0.89% - 6s 0 0 125443.208 0 8 126561.000 125443.208 0.88% - 8s 0 2 125447.123 0 8 126561.000 125447.123 0.88% - 10s H 14 13 126414.00000 125636.667 0.61% 250 13s H 15 14 126392.00000 125636.667 0.60% 246 13s * 19 13 15 126229.00000 125636.667 0.47% 219 14s 31 22 125983.182 12 1 126229.000 125637.166 0.47% 168 15s H 33 19 126102.00000 125637.166 0.37% 160 15s * 35 18 15 126034.00000 125637.166 0.31% 152 15s * 45 14 10 125967.00000 125661.599 0.24% 144 15s Cutting planes: Gomory: 3 Flow cover: 1 Explored 63 nodes (24129 simplex iterations) in 16.52 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.259670000000e+05, best bound 1.259670000000e+05, gap 0.0%