Gurobi 5.0.1 (linux64) logging started Wed Apr 24 03:08:54 2013

Optimize a model with 60137 rows, 59367 columns and 237237 nonzeros
Presolve removed 4054 rows and 0 columns
Presolve time: 0.39s
Presolved: 56083 rows, 59367 columns, 229129 nonzeros
Variable types: 59290 continuous, 77 integer (77 binary)

Root relaxation: objective 9.399332e+04, 15861 iterations, 3.29 seconds

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

     0     0 93993.3226    0    5          - 93993.3226     -      -    3s
H    0     0                    95385.000000 93993.3226  1.46%     -    4s
     0     0 93993.5066    0    6 95385.0000 93993.5066  1.46%     -    4s
     0     0 93993.5066    0    6 95385.0000 93993.5066  1.46%     -    4s
H    0     0                    94955.149425 93993.5066  1.01%     -    6s
H    0     0                    94775.000000 93993.5066  0.82%     -    6s
     0     2 93993.6701    0    6 94775.0000 93993.6701  0.82%     -    7s
*    9     5               7    94572.000000 94435.1293  0.14%   315    9s

Cutting planes:
  Gomory: 1
  Flow cover: 5

Explored 16 nodes (19210 simplex iterations) in 9.23 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 9.457200000000e+04, best bound 9.457200000000e+04, gap 0.0%