Gurobi 5.0.1 (linux64) logging started Sat Nov 17 19:52:15 2012

Optimize a model with 61 rows, 41 columns and 191 nonzeros
Presolve time: 0.00s
Presolved: 61 rows, 41 columns, 191 nonzeros
Variable types: 0 continuous, 41 integer (41 binary)
Found heuristic solution: objective 17.0000000

Root relaxation: objective 0.000000e+00, 17 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   11   17.00000    0.00000   100%     -    0s
     0     0    0.67229    0   17   17.00000    0.67229  96.0%     -    0s
     0     0    0.79613    0   22   17.00000    0.79613  95.3%     -    0s
H    0     0                      13.0000000    0.79613  93.9%     -    0s
H    0     0                      12.0000000    0.79613  93.4%     -    0s
     0     0    0.92077    0   23   12.00000    0.92077  92.3%     -    0s
     0     0    1.04896    0   25   12.00000    1.04896  91.3%     -    0s
     0     0    1.05487    0   30   12.00000    1.05487  91.2%     -    0s
     0     2    1.07136    0   30   12.00000    1.07136  91.1%     -    0s

Cutting planes:
  Gomory: 1
  Zero half: 9

Explored 31 nodes (395 simplex iterations) in 0.01 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 1.200000000000e+01, best bound 1.200000000000e+01, gap 0.0%