Gurobi 5.0.1 (linux64) logging started Wed Apr 24 03:28:18 2013

Optimize a model with 63279 rows, 62489 columns and 249719 nonzeros
Presolve removed 3657 rows and 0 columns
Presolve time: 0.39s
Presolved: 59622 rows, 62489 columns, 242405 nonzeros
Variable types: 62410 continuous, 79 integer (79 binary)

Root relaxation: objective 9.011019e+04, 13399 iterations, 3.18 seconds

    Nodes    |    Current Node    |     Objective Bounds      |     Work
 Expl Unexpl |  Obj  Depth IntInf | Incumbent    BestBd   Gap | It/Node Time

     0     0 90110.1896    0    3          - 90110.1896     -      -    3s
H    0     0                    92161.000000 90110.1896  2.23%     -    4s
H    0     0                    90408.000000 90110.1896  0.33%     -    4s
     0     0 90110.5936    0    4 90408.0000 90110.5936  0.33%     -    4s
     0     0 90110.7104    0    4 90408.0000 90110.7104  0.33%     -    5s
     0     0 90110.7104    0    3 90408.0000 90110.7104  0.33%     -    8s
     0     0 90110.8965    0    4 90408.0000 90110.8965  0.33%     -    8s
     0     0 90111.0936    0    4 90408.0000 90111.0936  0.33%     -    9s
H    0     0                    90325.000000 90111.0936  0.24%     -    9s
     0     2 90261.2857    0    2 90325.0000 90261.2857  0.07%     -   10s

Cutting planes:
  Gomory: 1
  Flow cover: 5

Explored 5 nodes (18548 simplex iterations) in 10.46 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 9.032500000000e+04, best bound 9.032500000000e+04, gap 0.0%