Gurobi 5.0.1 (linux64) logging started Wed Apr 24 03:27:12 2013

Optimize a model with 63279 rows, 62489 columns and 249719 nonzeros
Presolve removed 4613 rows and 0 columns
Presolve time: 0.40s
Presolved: 58666 rows, 62489 columns, 240493 nonzeros
Variable types: 62410 continuous, 79 integer (79 binary)

Root relaxation: objective 9.300710e+04, 14124 iterations, 3.52 seconds

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

     0     0 93007.1050    0    3          - 93007.1050     -      -    4s
H    0     0                    94573.000000 93007.1050  1.66%     -    4s
H    0     0                    93861.000000 93007.1050  0.91%     -    4s
     0     0 93007.9596    0    4 93861.0000 93007.9596  0.91%     -    4s
     0     0 93007.9596    0    4 93861.0000 93007.9596  0.91%     -    5s
     0     2 93017.7510    0    4 93861.0000 93017.7510  0.90%     -    7s
H    2     2                    93646.511628 93064.8494  0.62%   250    8s
    16     7 93479.3077   15    1 93646.5116 93089.8120  0.59%   154   10s
*   20     5              18    93629.000000 93089.8120  0.58%   129   10s
H   28     7                    93623.000000 93115.9538  0.54%   182   12s
H   45    14                    93558.000000 93169.4096  0.42%   163   13s
*   46    14               6    93502.000000 93169.4096  0.36%   163   13s
H   51     3                    93287.000000 93169.4096  0.13%   153   13s
*   52     0               5    93218.000000 93218.0000   0.0%   156   13s

Cutting planes:
  Gomory: 1
  Flow cover: 4

Explored 53 nodes (22241 simplex iterations) in 13.63 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 9.321800000000e+04, best bound 9.321800000000e+04, gap 0.0%