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

Optimize a model with 41 rows, 29 columns and 129 nonzeros
Presolve time: 0.00s
Presolved: 41 rows, 29 columns, 129 nonzeros
Variable types: 0 continuous, 29 integer (29 binary)
Found heuristic solution: objective 12.0000000
Found heuristic solution: objective 10.0000000

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   10.00000    0.00000   100%     -    0s
     0     0    0.74074    0   10   10.00000    0.74074  92.6%     -    0s
     0     0    1.29630    0   11   10.00000    1.29630  87.0%     -    0s
     0     0    1.81630    0   13   10.00000    1.81630  81.8%     -    0s
     0     0    1.86420    0   13   10.00000    1.86420  81.4%     -    0s
     0     0    1.91605    0   13   10.00000    1.91605  80.8%     -    0s
     0     0    1.98519    0   14   10.00000    1.98519  80.1%     -    0s
     0     0    2.05026    0   18   10.00000    2.05026  79.5%     -    0s
     0     0    2.08304    0   22   10.00000    2.08304  79.2%     -    0s
H    0     0                       9.0000000    2.08304  76.9%     -    0s
     0     2    2.08424    0   22    9.00000    2.08424  76.8%     -    0s
*   15     2               4       8.0000000    6.00000  25.0%   8.6    0s

Cutting planes:
  Gomory: 3
  Zero half: 1
  Mod-K: 4

Explored 18 nodes (221 simplex iterations) in 0.01 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 8.000000000000e+00, best bound 8.000000000000e+00, gap 0.0%