Gurobi 5.0.1 (linux64) logging started Sat Nov 17 19:52:51 2012

Optimize a model with 113 rows, 73 columns and 353 nonzeros
Presolve time: 0.00s
Presolved: 113 rows, 73 columns, 353 nonzeros
Variable types: 0 continuous, 73 integer (73 binary)
Found heuristic solution: objective 29.0000000

Root relaxation: objective 0.000000e+00, 29 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   17   29.00000    0.00000   100%     -    0s
H    0     0                      23.0000000    0.00000   100%     -    0s
     0     0    0.70588    0   18   23.00000    0.70588  96.9%     -    0s
H    0     0                      19.0000000    0.70588  96.3%     -    0s
     0     0    1.05882    0   19   19.00000    1.05882  94.4%     -    0s
     0     0    1.46857    0   22   19.00000    1.46857  92.3%     -    0s
     0     0    1.49823    0   22   19.00000    1.49823  92.1%     -    0s
     0     0    1.54446    0   23   19.00000    1.54446  91.9%     -    0s
     0     0    1.55440    0   24   19.00000    1.55440  91.8%     -    0s
     0     2    1.61566    0   24   19.00000    1.61566  91.5%     -    0s
*   30    11               6      18.0000000    5.14224  71.4%  17.6    0s

Cutting planes:
  Gomory: 4
  Mod-K: 5

Explored 103 nodes (1538 simplex iterations) in 0.05 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 1.800000000000e+01, best bound 1.800000000000e+01, gap 0.0%