Gurobi 5.0.1 (linux64) logging started Wed Apr 24 03:09:21 2013 Optimize a model with 60137 rows, 59367 columns and 237237 nonzeros Presolve removed 1404 rows and 0 columns Presolve time: 0.37s Presolved: 58733 rows, 59367 columns, 234429 nonzeros Variable types: 59290 continuous, 77 integer (77 binary) Root relaxation: objective 1.025370e+05, 13587 iterations, 3.05 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 102536.977 0 3 - 102536.977 - - 3s H 0 0 105648.00000 102536.977 2.94% - 3s H 0 0 103338.00000 102536.977 0.78% - 4s 0 0 102540.553 0 5 103338.000 102540.553 0.77% - 4s 0 0 102541.168 0 5 103338.000 102541.168 0.77% - 4s 0 0 102541.168 0 5 103338.000 102541.168 0.77% - 5s 0 0 102548.435 0 5 103338.000 102548.435 0.76% - 6s 0 2 102549.198 0 5 103338.000 102549.198 0.76% - 7s * 13 10 11 103238.00000 102665.308 0.55% 166 9s 23 14 103012.354 7 2 103238.000 102675.185 0.55% 157 10s H 24 13 103213.51072 102675.185 0.52% 151 10s H 25 13 103206.61538 102675.185 0.51% 149 10s * 27 14 10 103170.00000 102675.185 0.48% 141 10s H 40 10 103015.72222 102820.556 0.19% 173 11s * 43 11 7 102973.00000 102821.356 0.15% 168 11s Cutting planes: Gomory: 2 Flow cover: 2 Explored 62 nodes (22397 simplex iterations) in 12.44 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.029730000000e+05, best bound 1.029730000000e+05, gap 0.0%