Gurobi 5.0.1 (linux64) logging started Sat Nov 17 23:40:40 2012

Optimize a model with 185 rows, 133 columns and 593 nonzeros
Presolve time: 0.00s
Presolved: 185 rows, 133 columns, 593 nonzeros
Variable types: 0 continuous, 133 integer (133 binary)
Found heuristic solution: objective 40.0000000

Root relaxation: objective 0.000000e+00, 59 iterations, 0.00 seconds

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

     0     0    0.00000    0   40   40.00000    0.00000   100%     -    0s
H    0     0                      37.0000000    0.00000   100%     -    0s
H    0     0                      36.0000000    0.00000   100%     -    0s
     0     0    0.63333    0   41   36.00000    0.63333  98.2%     -    0s
H    0     0                      35.0000000    0.63333  98.2%     -    0s
     0     0    0.86377    0   43   35.00000    0.86377  97.5%     -    0s
     0     0    0.86377    0   43   35.00000    0.86377  97.5%     -    0s
     0     2    0.88148    0   43   35.00000    0.88148  97.5%     -    0s
*   21    20              14      25.0000000    4.67083  81.3%  24.5    0s
*   49    21              11      23.0000000    4.69524  79.6%  20.1    0s
*   63    31              11      22.0000000    7.38333  66.4%  23.2    0s
*   89    29              11      21.0000000    7.38519  64.8%  22.0    0s
H  136    28                      20.0000000   11.49333  42.5%  21.2    0s

Cutting planes:
  Gomory: 1
  Zero half: 1
  Mod-K: 1

Explored 222 nodes (4376 simplex iterations) in 0.13 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 2.000000000000e+01, best bound 2.000000000000e+01, gap 0.0%