Gurobi 5.0.1 (linux64) logging started Wed Apr 24 03:27:51 2013

Optimize a model with 63279 rows, 62489 columns and 249719 nonzeros
Presolve removed 4204 rows and 0 columns
Presolve time: 0.40s
Presolved: 59075 rows, 62489 columns, 241311 nonzeros
Variable types: 62410 continuous, 79 integer (79 binary)

Root relaxation: objective 9.304359e+04, 12836 iterations, 2.90 seconds

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

     0     0 93043.5931    0    4          - 93043.5931     -      -    3s
H    0     0                    97082.000000 93043.5931  4.16%     -    3s
     0     0 93048.1181    0    8 97082.0000 93048.1181  4.16%     -    4s
H    0     0                    93902.000000 93048.1181  0.91%     -    6s
     0     2 93050.3675    0    8 93902.0000 93050.3675  0.91%     -    8s
H    3     3                    93599.251553 93176.7159  0.45%   302    8s
H    5     5                    93598.142857 93335.7070  0.28%   334    9s
H    6     6                    93570.714286 93335.7070  0.25%   281    9s
*    8     8               6    93405.000000 93335.7070  0.07%   231    9s

Cutting planes:
  Gomory: 3
  Flow cover: 7

Explored 17 nodes (15110 simplex iterations) in 9.83 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 9.340500000000e+04, best bound 9.340500000000e+04, gap 0.0%