Gurobi 5.0.1 (linux64) logging started Sat Nov 17 23:38:06 2012

Optimize a model with 69 rows, 59 columns and 229 nonzeros
Presolve time: 0.00s
Presolved: 69 rows, 59 columns, 229 nonzeros
Variable types: 0 continuous, 59 integer (59 binary)
Found heuristic solution: objective 17.0000000
Found heuristic solution: objective 13.0000000

Root relaxation: objective 0.000000e+00, 39 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   24   13.00000    0.00000   100%     -    0s
H    0     0                       8.0000000    0.00000   100%     -    0s
     0     0    0.45993    0   26    8.00000    0.45993  94.3%     -    0s
     0     0    0.52421    0   28    8.00000    0.52421  93.4%     -    0s
     0     0    0.54086    0   27    8.00000    0.54086  93.2%     -    0s
     0     0    0.56757    0   28    8.00000    0.56757  92.9%     -    0s
     0     0    0.61584    0   30    8.00000    0.61584  92.3%     -    0s
     0     0    0.61977    0   27    8.00000    0.61977  92.3%     -    0s
     0     0    0.61977    0   27    8.00000    0.61977  92.3%     -    0s
     0     2    0.63768    0   27    8.00000    0.63768  92.0%     -    0s
*    5     5               3       5.0000000    2.66667  46.7%  21.0    0s

Cutting planes:
  Gomory: 1
  Zero half: 2
  Mod-K: 3

Explored 10 nodes (248 simplex iterations) in 0.01 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 5.000000000000e+00, best bound 5.000000000000e+00, gap 0.0%