Gurobi 5.0.1 (linux64) logging started Sat Nov 17 19:52:11 2012

Optimize a model with 57 rows, 38 columns and 178 nonzeros
Presolve time: 0.00s
Presolved: 57 rows, 38 columns, 178 nonzeros
Variable types: 0 continuous, 38 integer (38 binary)
Found heuristic solution: objective 17.0000000

Root relaxation: objective 0.000000e+00, 15 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   10   17.00000    0.00000   100%     -    0s
H    0     0                      14.0000000    0.00000   100%     -    0s
     0     0    1.25926    0   16   14.00000    1.25926  91.0%     -    0s
H    0     0                      13.0000000    1.25926  90.3%     -    0s
     0     0    1.33333    0   12   13.00000    1.33333  89.7%     -    0s
     0     0    1.41667    0   14   13.00000    1.41667  89.1%     -    0s
     0     0    1.50000    0   13   13.00000    1.50000  88.5%     -    0s
     0     0    1.58333    0   16   13.00000    1.58333  87.8%     -    0s
     0     0    1.66667    0   13   13.00000    1.66667  87.2%     -    0s
     0     0    1.66667    0   16   13.00000    1.66667  87.2%     -    0s
     0     0    1.66667    0   14   13.00000    1.66667  87.2%     -    0s
     0     2    1.66667    0   13   13.00000    1.66667  87.2%     -    0s
*   16     8               5      12.0000000    5.66667  52.8%  13.2    0s
*   19     4               4      11.0000000    5.66667  48.5%  11.6    0s

Cutting planes:
  Gomory: 1
  Zero half: 8

Explored 30 nodes (374 simplex iterations) in 0.01 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 1.100000000000e+01, best bound 1.100000000000e+01, gap 0.0%