Gurobi 5.0.1 (linux64) logging started Wed Apr 24 01:17:56 2013

Optimize a model with 29754 rows, 29214 columns and 116694 nonzeros
Presolve removed 2432 rows and 0 columns
Presolve time: 0.16s
Presolved: 27322 rows, 29214 columns, 111830 nonzeros
Variable types: 29160 continuous, 54 integer (54 binary)

Root relaxation: objective 6.506347e+04, 6345 iterations, 0.75 seconds

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

     0     0 65063.4731    0    2          - 65063.4731     -      -    0s
H    0     0                    65655.000000 65063.4731  0.90%     -    1s
     0     0 65069.1007    0    4 65655.0000 65069.1007  0.89%     -    1s
     0     0 65069.1007    0    4 65655.0000 65069.1007  0.89%     -    1s
     0     2 65076.8271    0    4 65655.0000 65076.8271  0.88%     -    2s
*   12     5              11    65217.000000 65180.9858  0.06%  45.6    2s

Cutting planes:
  Gomory: 1
  Flow cover: 3

Explored 18 nodes (7101 simplex iterations) in 2.67 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 6.521700000000e+04, best bound 6.521365478678e+04, gap 0.0051%