Gurobi 5.0.1 (linux64) logging started Wed Apr 24 03:27:42 2013

Optimize a model with 63279 rows, 62489 columns and 249719 nonzeros
Presolve removed 3793 rows and 0 columns
Presolve time: 0.39s
Presolved: 59486 rows, 62489 columns, 242133 nonzeros
Variable types: 62410 continuous, 79 integer (79 binary)

Root relaxation: objective 9.714868e+04, 13714 iterations, 2.94 seconds

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

     0     0 97148.6771    0    3          - 97148.6771     -      -    3s
H    0     0                    98780.000000 97148.6771  1.65%     -    3s
H    0     0                    97223.000000 97148.6771  0.08%     -    4s
     0     0 97152.2191    0    5 97223.0000 97152.2191  0.07%     -    4s
     0     0 97152.2191    0    3 97223.0000 97152.2191  0.07%     -    5s
     0     0 97153.2074    0    5 97223.0000 97153.2074  0.07%     -    6s
     0     0 97154.3363    0    5 97223.0000 97154.3363  0.07%     -    6s
     0     0 97155.6259    0    5 97223.0000 97155.6259  0.07%     -    6s
     0     0     cutoff    0      97223.0000 97223.0000   0.0%     -    6s

Cutting planes:
  Gomory: 3
  Flow cover: 4

Explored 0 nodes (17598 simplex iterations) in 6.80 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 9.722300000000e+04, best bound 9.722300000000e+04, gap 0.0%