Gurobi 5.0.1 (linux64) logging started Fri Nov 16 01:08:13 2012

Optimize a model with 2967 rows, 552 columns and 9361 nonzeros
Presolve removed 888 rows and 0 columns
Presolve time: 0.04s
Presolved: 2079 rows, 552 columns, 11315 nonzeros
Variable types: 0 continuous, 552 integer (552 binary)
Found heuristic solution: objective 18.0000000

Root relaxation: objective 5.000000e+00, 2139 iterations, 0.22 seconds

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

     0     0    5.00000    0   82   18.00000    5.00000  72.2%     -    0s
H    0     0                       8.0000000    5.00000  37.5%     -    0s
H    0     0                       7.0000000    5.00000  28.6%     -    0s
H    0     0                       6.0000000    5.00000  16.7%     -    0s
     0     0    5.00000    0  101    6.00000    5.00000  16.7%     -    0s
     0     0    5.00000    0  106    6.00000    5.00000  16.7%     -    0s
     0     0    5.00000    0   85    6.00000    5.00000  16.7%     -    1s
     0     0    5.00000    0   85    6.00000    5.00000  16.7%     -    1s
     0     0    5.00000    0   62    6.00000    5.00000  16.7%     -    1s
     0     0    5.00000    0   87    6.00000    5.00000  16.7%     -    2s
     0     0    5.00000    0   88    6.00000    5.00000  16.7%     -    2s
     0     0    5.00000    0   88    6.00000    5.00000  16.7%     -    2s
     0     2    5.00000    0   73    6.00000    5.00000  16.7%     -    3s
     9     8    5.00000    1   40    6.00000    5.00000  16.7%   111    5s

Cutting planes:
  Gomory: 5
  Clique: 4
  Zero half: 38

Explored 47 nodes (40401 simplex iterations) in 9.07 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 6.000000000000e+00, best bound 6.000000000000e+00, gap 0.0%