Gurobi 5.0.1 (linux64) logging started Wed Apr 24 00:59:53 2013

Optimize a model with 17302 rows, 16892 columns and 67322 nonzeros
Presolve removed 41 rows and 0 columns
Presolve time: 0.07s
Presolved: 17261 rows, 16892 columns, 67281 nonzeros
Variable types: 16851 continuous, 41 integer (41 binary)

Root relaxation: objective 3.984054e+04, 2768 iterations, 0.45 seconds

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

     0     0 39840.5438    0   37          - 39840.5438     -      -    0s
H    0     0                    48401.000000 39840.5438  17.7%     -    0s
     0     0 43840.5263    0   10 48401.0000 43840.5263  9.42%     -    1s
H    0     0                    46210.792601 43840.5263  5.13%     -    1s
H    0     0                    45432.000000 43840.5263  3.50%     -    1s
     0     0 43984.4113    0    5 45432.0000 43984.4113  3.19%     -    1s
H    0     0                    45128.434964 43984.4113  2.54%     -    1s
H    0     0                    44759.000000 43984.4113  1.73%     -    1s
     0     0 44066.8900    0    6 44759.0000 44066.8900  1.55%     -    1s
H    0     0                    44729.000000 44066.8900  1.48%     -    1s
H    0     0                    44208.000000 44066.8900  0.32%     -    1s
     0     1 44116.5597    0    4 44208.0000 44116.5597  0.21%     -    2s
*    6     3               6    44166.000000 44151.5450  0.03%  30.5    2s

Cutting planes:
  Gomory: 1
  Implied bound: 36

Explored 9 nodes (4529 simplex iterations) in 2.12 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 4.416600000000e+04, best bound 4.416600000000e+04, gap 0.0%