Gurobi 5.0.1 (linux64) logging started Tue Nov 20 05:59:29 2012

Optimize a model with 787 rows, 125 columns and 1574 nonzeros
Presolve removed 295 rows and 0 columns
Presolve time: 0.01s
Presolved: 492 rows, 125 columns, 1251 nonzeros
Variable types: 0 continuous, 125 integer (125 binary)
Found heuristic solution: objective 28.0000000

Root relaxation: objective 4.246466e+01, 313 iterations, 0.01 seconds

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

     0     0   42.46466    0  120   28.00000   42.46466  51.7%     -    0s
H    0     0                      30.0000000   42.46466  41.5%     -    0s
     0     0   42.05861    0  122   30.00000   42.05861  40.2%     -    0s
H    0     0                      31.0000000   42.05861  35.7%     -    0s
     0     0   41.79122    0  122   31.00000   41.79122  34.8%     -    0s
     0     0   41.69389    0  123   31.00000   41.69389  34.5%     -    0s
     0     0   41.54596    0  124   31.00000   41.54596  34.0%     -    0s
     0     0   41.47568    0  124   31.00000   41.47568  33.8%     -    0s
     0     0   41.35462    0  123   31.00000   41.35462  33.4%     -    0s
     0     0   41.31214    0  123   31.00000   41.31214  33.3%     -    0s
     0     0   41.15994    0  124   31.00000   41.15994  32.8%     -    0s
     0     0   41.12077    0  123   31.00000   41.12077  32.6%     -    0s
     0     0   41.07418    0  122   31.00000   41.07418  32.5%     -    0s
     0     0   41.05635    0  124   31.00000   41.05635  32.4%     -    0s
     0     0   41.03323    0  124   31.00000   41.03323  32.4%     -    0s
     0     0   41.01564    0  124   31.00000   41.01564  32.3%     -    0s
     0     0   40.93132    0  123   31.00000   40.93132  32.0%     -    0s
     0     0   40.90173    0  124   31.00000   40.90173  31.9%     -    0s
     0     0   40.89098    0  123   31.00000   40.89098  31.9%     -    0s
     0     0   40.88749    0  124   31.00000   40.88749  31.9%     -    0s
     0     0   40.88749    0  124   31.00000   40.88749  31.9%     -    0s
     0     2   40.88574    0  124   31.00000   40.88574  31.9%     -    0s
*   15    15              13      32.0000000   40.88574  27.8%  43.8    0s
*  203    79              11      33.0000000   38.94549  18.0%  33.7    0s
   614   225   37.37500    8  123   33.00000   37.97500  15.1%  29.2    5s
  1986   457     cutoff   23        33.00000   36.58333  10.9%  29.9   10s
H 3731   102                      34.0000000   35.16667  3.43%  26.0   11s

Cutting planes:
  Gomory: 4
  Clique: 8
  Zero half: 81

Explored 3838 nodes (98748 simplex iterations) in 11.94 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 3.400000000000e+01, best bound 3.400000000000e+01, gap 0.0%