Gurobi 5.0.1 (linux64) logging started Sat Nov 17 23:39:23 2012

Optimize a model with 89 rows, 80 columns and 300 nonzeros
Presolve removed 0 rows and 4 columns
Presolve time: 0.00s
Presolved: 89 rows, 76 columns, 296 nonzeros
Variable types: 0 continuous, 76 integer (75 binary)
Found heuristic solution: objective 14.0000000

Root relaxation: objective 0.000000e+00, 50 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   31   14.00000    0.00000   100%     -    0s
H    0     0                       8.0000000    0.00000   100%     -    0s
     0     0    0.41935    0   32    8.00000    0.41935  94.8%     -    0s
     0     0    1.00000    0   34    8.00000    1.00000  87.5%     -    0s
     0     0    1.00000    0   34    8.00000    1.00000  87.5%     -    0s
     0     2    1.00000    0   34    8.00000    1.00000  87.5%     -    0s
*   12    11               9       7.0000000    1.71099  75.6%  14.6    0s
*   28     6              10       6.0000000    2.11526  64.7%   9.6    0s

Cutting planes:
  Gomory: 3
  Zero half: 3

Explored 42 nodes (674 simplex iterations) in 0.04 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%