Gurobi 5.0.1 (linux64) logging started Wed Apr 24 01:13:19 2013

Optimize a model with 26622 rows, 26112 columns and 104142 nonzeros
Presolve removed 51 rows and 0 columns
Presolve time: 0.12s
Presolved: 26571 rows, 26112 columns, 104091 nonzeros
Variable types: 26061 continuous, 51 integer (51 binary)

Root relaxation: objective 4.528700e+04, 3759 iterations, 1.49 seconds

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

     0     0 45286.9990    0   38          - 45286.9990     -      -    1s
H    0     0                    60989.000000 45286.9990  25.7%     -    2s
     0     0 54498.7414    0    7 60989.0000 54498.7414  10.6%     -    3s
H    0     0                    57050.328640 54498.7414  4.47%     -    3s
H    0     0                    55220.000000 54498.7414  1.31%     -    3s
     0     0 55027.2303    0    2 55220.0000 55027.2303  0.35%     -    4s
H    0     0                    55195.000000 55027.2303  0.30%     -    4s
     0     0 55030.8148    0    1 55195.0000 55030.8148  0.30%     -    4s
     0     2 55036.0000    0    1 55195.0000 55036.0000  0.29%     -    4s
     6     1 55154.0000    2    1 55195.0000 55154.0000  0.07%   109    5s
*    7     0               3    55172.000000 55172.0000   0.0%   123    5s

Cutting planes:
  Gomory: 1
  Implied bound: 42

Explored 8 nodes (7264 simplex iterations) in 5.11 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 5.517200000000e+04, best bound 5.517200000000e+04, gap 0.0%