Gurobi 5.0.1 (linux64) logging started Tue Dec 25 15:28:10 2012

Optimize a model with 442 rows, 441 columns and 1995 nonzeros
Presolve removed 134 rows and 77 columns
Presolve time: 0.02s
Presolved: 308 rows, 364 columns, 3580 nonzeros
Variable types: 20 continuous, 344 integer (344 binary)

Root relaxation: objective 1.577536e+02, 83 iterations, 0.00 seconds

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

     0     0  157.75361    0   39          -  157.75361     -      -    0s
     0     0  171.69860    0   38          -  171.69860     -      -    0s
     0     0  176.80288    0   38          -  176.80288     -      -    0s
     0     0  177.33333    0   34          -  177.33333     -      -    0s
     0     0  177.33333    0   34          -  177.33333     -      -    0s
     0     0  177.33333    0   34          -  177.33333     -      -    0s
H    0     0                     392.0000000  177.33333  54.8%     -    0s
H    0     0                     385.0000000  177.33333  53.9%     -    0s
     0     2  180.66667    0   34  385.00000  180.66667  53.1%     -    0s
H  271   167                     261.0000000  183.00000  29.9%   8.1    0s
H  610   334                     257.0000000  189.82137  26.1%   7.2    0s
H  721   335                     251.0000000  199.85714  20.4%  11.0    1s
H  748   320                     250.0000000  200.42487  19.8%  11.1    1s
* 1376   258              25     245.0000000  214.40415  12.5%  15.8    2s

Cutting planes:
  Gomory: 12
  Cover: 6
  Implied bound: 31
  Clique: 2
  MIR: 59
  GUB cover: 3
  Zero half: 78

Explored 3807 nodes (49246 simplex iterations) in 4.14 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 2.450000000000e+02, best bound 2.450000000000e+02, gap 0.0%