Gurobi 5.0.1 (linux64) logging started Sat Nov 17 19:52:12 2012

Optimize a model with 55 rows, 37 columns and 172 nonzeros
Presolve time: 0.00s
Presolved: 55 rows, 37 columns, 172 nonzeros
Variable types: 0 continuous, 37 integer (37 binary)
Found heuristic solution: objective 16.0000000
Found heuristic solution: objective 14.0000000

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   14.00000    0.00000   100%     -    0s
     0     0    0.80000    0   12   14.00000    0.80000  94.3%     -    0s
H    0     0                      13.0000000    0.80000  93.8%     -    0s
H    0     0                      12.0000000    0.80000  93.3%     -    0s
     0     0    0.90000    0   12   12.00000    0.90000  92.5%     -    0s
     0     0    1.10000    0   13   12.00000    1.10000  90.8%     -    0s
     0     0    1.17778    0   16   12.00000    1.17778  90.2%     -    0s
     0     0    1.40000    0   13   12.00000    1.40000  88.3%     -    0s
     0     0    1.40000    0   15   12.00000    1.40000  88.3%     -    0s
     0     0    1.40000    0   15   12.00000    1.40000  88.3%     -    0s
     0     2    1.40000    0   15   12.00000    1.40000  88.3%     -    0s
*    9     7               5      11.0000000    3.00000  72.7%  12.7    0s

Cutting planes:
  Gomory: 1
  Zero half: 8

Explored 33 nodes (317 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%