Gurobi 5.0.1 (linux64) logging started Sat Nov 17 19:52:05 2012

Optimize a model with 27 rows, 20 columns and 85 nonzeros
Presolve time: 0.00s
Presolved: 27 rows, 20 columns, 85 nonzeros
Variable types: 0 continuous, 20 integer (20 binary)
Found heuristic solution: objective 7.0000000

Root relaxation: objective 0.000000e+00, 9 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    7    7.00000    0.00000   100%     -    0s
     0     0    0.66667    0    9    7.00000    0.66667  90.5%     -    0s
H    0     0                       6.0000000    0.66667  88.9%     -    0s
     0     0    0.76190    0    9    6.00000    0.76190  87.3%     -    0s
     0     0    1.00000    0   11    6.00000    1.00000  83.3%     -    0s
     0     0    1.00000    0   11    6.00000    1.00000  83.3%     -    0s
     0     2    1.12500    0   11    6.00000    1.12500  81.2%     -    0s

Cutting planes:
  Gomory: 1
  Zero half: 4

Explored 6 nodes (80 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%