Gurobi 5.0.1 (linux64) logging started Wed Apr 24 03:18:04 2013

Optimize a model with 61698 rows, 60918 columns and 243438 nonzeros
Presolve removed 3782 rows and 0 columns
Presolve time: 0.38s
Presolved: 57916 rows, 60918 columns, 235874 nonzeros
Variable types: 60840 continuous, 78 integer (78 binary)

Root relaxation: objective 9.220157e+04, 11578 iterations, 2.38 seconds

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

     0     0 92201.5741    0    5          - 92201.5741     -      -    2s
H    0     0                    96291.000000 92201.5741  4.25%     -    3s
H    0     0                    93008.000000 92201.5741  0.87%     -    3s
     0     0 92204.6120    0    7 93008.0000 92204.6120  0.86%     -    3s
     0     0 92204.6120    0    7 93008.0000 92204.6120  0.86%     -    4s
     0     0 92204.6120    0    7 93008.0000 92204.6120  0.86%     -    4s
     0     2 92218.4923    0    7 93008.0000 92218.4923  0.85%     -    6s
*   12    11              10    92800.000000 92345.8679  0.49%   124    7s
H   13    10                    92744.000000 92345.8679  0.43%   115    7s
*   14     9              12    92738.000000 92345.8679  0.42%   109    7s
*   18     6               5    92591.000000 92427.5221  0.18%   119    7s

Cutting planes:
  Gomory: 2
  Flow cover: 3

Explored 32 nodes (14936 simplex iterations) in 8.41 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 9.259100000000e+04, best bound 9.259100000000e+04, gap 0.0%