Gurobi 5.0.1 (linux64) logging started Tue Dec 25 15:26:56 2012

Optimize a model with 482 rows, 441 columns and 2774 nonzeros
Presolve removed 50 rows and 89 columns
Presolve time: 0.01s
Presolved: 432 rows, 352 columns, 3959 nonzeros
Variable types: 20 continuous, 332 integer (332 binary)

Root relaxation: objective 1.743281e+02, 80 iterations, 0.00 seconds

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

     0     0  174.32813    0   17          -  174.32813     -      -    0s
     0     0  175.50000    0   20          -  175.50000     -      -    0s
     0     0  175.50000    0   30          -  175.50000     -      -    0s
     0     0  176.00000    0   20          -  176.00000     -      -    0s
     0     0  176.00000    0   20          -  176.00000     -      -    0s
     0     0  176.00000    0   20          -  176.00000     -      -    0s
     0     2  176.27654    0   20          -  176.27654     -      -    0s
*   17    16              15     252.0000000  177.21410  29.7%   6.6    0s
H  108    70                     251.0000000  182.65006  27.2%   9.1    0s
*  155    69              16     233.0000000  184.07677  21.0%   9.2    0s
*  262    53              10     225.0000000  192.26177  14.6%   9.0    0s

Cutting planes:
  Learned: 5
  Gomory: 3
  Cover: 28
  Implied bound: 3
  MIR: 6
  GUB cover: 1
  Zero half: 3

Explored 530 nodes (4667 simplex iterations) in 0.39 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 2.250000000000e+02, best bound 2.250000000000e+02, gap 0.0%