Gurobi 5.0.1 (linux64) logging started Sat Nov 17 23:40:38 2012

Optimize a model with 165 rows, 123 columns and 533 nonzeros
Presolve time: 0.00s
Presolved: 165 rows, 123 columns, 533 nonzeros
Variable types: 0 continuous, 123 integer (123 binary)
Found heuristic solution: objective 34.0000000

Root relaxation: objective 0.000000e+00, 62 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   41   34.00000    0.00000   100%     -    0s
H    0     0                      31.0000000    0.00000   100%     -    0s
H    0     0                      30.0000000    0.00000   100%     -    0s
H    0     0                      27.0000000    0.00000   100%     -    0s
     0     0    0.76327    0   43   27.00000    0.76327  97.2%     -    0s
     0     0    0.78772    0   43   27.00000    0.78772  97.1%     -    0s
H    0     0                      24.0000000    0.78772  96.7%     -    0s
     0     2    0.91582    0   43   24.00000    0.91582  96.2%     -    0s
*   21    21              15      21.0000000    3.19412  84.8%  20.9    0s
*   29    19              16      20.0000000    3.19412  84.0%  17.0    0s
*   54    29              17      19.0000000    3.23797  83.0%  16.4    0s
*   99    43              14      18.0000000    5.73529  68.1%  16.3    0s

Cutting planes:
  Gomory: 1
  Mod-K: 5

Explored 530 nodes (7267 simplex iterations) in 0.19 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%