Gurobi 5.0.1 (linux64) logging started Tue Nov 20 12:32:02 2012

Optimize a model with 157 rows, 75 columns and 314 nonzeros
Presolve removed 20 rows and 8 columns
Presolve time: 0.00s
Presolved: 137 rows, 67 columns, 279 nonzeros
Variable types: 0 continuous, 67 integer (67 binary)
Found heuristic solution: objective 32.0000000

Root relaxation: objective 3.700000e+01, 80 iterations, 0.00 seconds

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

     0     0   37.00000    0   62   32.00000   37.00000  15.6%     -    0s
     0     0   35.25000    0   61   32.00000   35.25000  10.2%     -    0s
     0     0   35.00000    0   54   32.00000   35.00000  9.38%     -    0s
     0     0   34.75000    0   52   32.00000   34.75000  8.59%     -    0s
     0     0   34.50000    0   55   32.00000   34.50000  7.81%     -    0s
     0     0   34.41237    0   66   32.00000   34.41237  7.54%     -    0s
     0     0   34.28000    0   67   32.00000   34.28000  7.13%     -    0s
     0     0   34.05263    0   64   32.00000   34.05263  6.41%     -    0s
     0     0   33.85714    0   67   32.00000   33.85714  5.80%     -    0s
     0     0   33.75000    0   66   32.00000   33.75000  5.47%     -    0s
     0     0   33.50000    0   63   32.00000   33.50000  4.69%     -    0s
     0     0   33.50000    0   64   32.00000   33.50000  4.69%     -    0s
     0     0   33.50000    0   55   32.00000   33.50000  4.69%     -    0s
     0     2   33.50000    0   55   32.00000   33.50000  4.69%     -    0s
*    7     2               5      33.0000000   33.41176  1.25%  14.1    0s

Cutting planes:
  Zero half: 16

Explored 8 nodes (565 simplex iterations) in 0.03 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 3.300000000000e+01, best bound 3.300000000000e+01, gap 0.0%