Gurobi 5.0.1 (linux64) logging started Sat Nov 17 19:52:09 2012

Optimize a model with 37 rows, 27 columns and 117 nonzeros
Presolve time: 0.00s
Presolved: 37 rows, 27 columns, 117 nonzeros
Variable types: 0 continuous, 27 integer (27 binary)
Found heuristic solution: objective 9.0000000

Root relaxation: objective 0.000000e+00, 13 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    9    9.00000    0.00000   100%     -    0s
     0     0    0.97778    0   13    9.00000    0.97778  89.1%     -    0s
H    0     0                       8.0000000    0.97778  87.8%     -    0s
H    0     0                       6.0000000    0.97778  83.7%     -    0s
     0     2    1.05556    0   12    6.00000    1.05556  82.4%     -    0s

Cutting planes:
  Gomory: 1
  Mod-K: 1

Explored 18 nodes (133 simplex iterations) in 0.00 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%