Gurobi 5.0.1 (linux64) logging started Tue Nov 20 05:49:21 2012

Optimize a model with 483 rows, 101 columns and 966 nonzeros
Presolve removed 166 rows and 0 columns
Presolve time: 0.00s
Presolved: 317 rows, 101 columns, 771 nonzeros
Variable types: 0 continuous, 101 integer (101 binary)
Found heuristic solution: objective 29.0000000

Root relaxation: objective 3.691667e+01, 206 iterations, 0.00 seconds

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

     0     0   36.91667    0   95   29.00000   36.91667  27.3%     -    0s
H    0     0                      31.0000000   36.91667  19.1%     -    0s
     0     0   36.00000    0   97   31.00000   36.00000  16.1%     -    0s
     0     0   36.00000    0   95   31.00000   36.00000  16.1%     -    0s
     0     0   35.87137    0   98   31.00000   35.87137  15.7%     -    0s
     0     0   35.61972    0   99   31.00000   35.61972  14.9%     -    0s
     0     0   35.39856    0   98   31.00000   35.39856  14.2%     -    0s
     0     0   35.33831    0   96   31.00000   35.33831  14.0%     -    0s
     0     0   35.21455    0   98   31.00000   35.21455  13.6%     -    0s
     0     0   35.14814    0  100   31.00000   35.14814  13.4%     -    0s
     0     0   35.13165    0  100   31.00000   35.13165  13.3%     -    0s
     0     0   35.13165    0   96   31.00000   35.13165  13.3%     -    0s
     0     2   35.13064    0   96   31.00000   35.13064  13.3%     -    0s
*   44     9               5      32.0000000   34.65248  8.29%  27.0    0s

Cutting planes:
  Clique: 1
  Zero half: 60

Explored 84 nodes (2953 simplex iterations) in 0.15 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 3.200000000000e+01, best bound 3.200000000000e+01, gap 0.0%