Gurobi 5.0.1 (linux64) logging started Tue Nov 20 05:49:15 2012

Optimize a model with 480 rows, 99 columns and 960 nonzeros
Presolve removed 171 rows and 0 columns
Presolve time: 0.00s
Presolved: 309 rows, 99 columns, 770 nonzeros
Variable types: 0 continuous, 99 integer (99 binary)
Found heuristic solution: objective 28.0000000

Root relaxation: objective 3.588889e+01, 204 iterations, 0.00 seconds

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

     0     0   35.88889    0   92   28.00000   35.88889  28.2%     -    0s
     0     0   35.00000    0   98   28.00000   35.00000  25.0%     -    0s
     0     0   34.73387    0   96   28.00000   34.73387  24.0%     -    0s
H    0     0                      29.0000000   34.73387  19.8%     -    0s
     0     0   34.42857    0   98   29.00000   34.42857  18.7%     -    0s
     0     0   34.26667    0   94   29.00000   34.26667  18.2%     -    0s
     0     0   34.02533    0   96   29.00000   34.02533  17.3%     -    0s
     0     0   33.84464    0   97   29.00000   33.84464  16.7%     -    0s
     0     0   33.80000    0   95   29.00000   33.80000  16.6%     -    0s
     0     0   33.75498    0   94   29.00000   33.75498  16.4%     -    0s
     0     0   33.73574    0   96   29.00000   33.73574  16.3%     -    0s
     0     0   33.73574    0   95   29.00000   33.73574  16.3%     -    0s
     0     2   33.73528    0   95   29.00000   33.73528  16.3%     -    0s
*   16     7              12      30.0000000   33.73491  12.4%  19.9    0s

Cutting planes:
  Clique: 3
  Zero half: 42

Explored 128 nodes (3654 simplex iterations) in 0.17 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 3.000000000000e+01, best bound 3.000000000000e+01, gap 0.0%