Gurobi 5.0.1 (linux64) logging started Wed Dec 19 14:04:01 2012

Optimize a model with 1762 rows, 1681 columns and 10091 nonzeros
Presolve removed 766 rows and 916 columns
Presolve time: 0.05s
Presolved: 996 rows, 765 columns, 14796 nonzeros
Variable types: 40 continuous, 725 integer (725 binary)

Root relaxation: objective 4.474083e+02, 188 iterations, 0.00 seconds

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

     0     0  447.40833    0   20          -  447.40833     -      -    0s
     0     0  451.37037    0   12          -  451.37037     -      -    0s
     0     0  452.01698    0   24          -  452.01698     -      -    0s
     0     0  453.00000    0   16          -  453.00000     -      -    0s
     0     0  453.00000    0   16          -  453.00000     -      -    0s
H    0     0                     473.0000000  453.00000  4.23%     -    0s
     0     0  453.00000    0   34  473.00000  453.00000  4.23%     -    0s
     0     0  453.16782    0   12  473.00000  453.16782  4.19%     -    0s
     0     0  455.00000    0   10  473.00000  455.00000  3.81%     -    0s
     0     0  455.00000    0    6  473.00000  455.00000  3.81%     -    0s
H    0     0                     471.0000000  455.00000  3.40%     -    0s
     0     2  457.00000    0    6  471.00000  457.00000  2.97%     -    0s
*    8     1               7     465.0000000  461.00000  0.86%  16.4    0s

Cutting planes:
  Gomory: 2
  Cover: 1
  Clique: 1
  GUB cover: 4

Explored 14 nodes (735 simplex iterations) in 0.32 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 4.650000000000e+02, best bound 4.650000000000e+02, gap 0.0%