Gurobi 5.0.1 (linux64) logging started Sat Nov 17 19:52:04 2012

Optimize a model with 23 rows, 17 columns and 72 nonzeros
Presolve time: 0.00s
Presolved: 23 rows, 17 columns, 72 nonzeros
Variable types: 0 continuous, 17 integer (17 binary)
Found heuristic solution: objective 9.0000000
Found heuristic solution: objective 6.0000000

Root relaxation: objective 0.000000e+00, 8 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    6    6.00000    0.00000   100%     -    0s
     0     0    1.16667    0   12    6.00000    1.16667  80.6%     -    0s
     0     0    1.35714    0   12    6.00000    1.35714  77.4%     -    0s
     0     0    1.40000    0   13    6.00000    1.40000  76.7%     -    0s
     0     0    1.50000    0   11    6.00000    1.50000  75.0%     -    0s
     0     0    1.50000    0    9    6.00000    1.50000  75.0%     -    0s
     0     0    1.50000    0    9    6.00000    1.50000  75.0%     -    0s
     0     2    1.50000    0    9    6.00000    1.50000  75.0%     -    0s

Cutting planes:
  Gomory: 1
  Zero half: 7

Explored 7 nodes (102 simplex iterations) in 0.01 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 6.000000000000e+00, best bound 6.000000000000e+00, gap 0.0%