Gurobi 5.0.1 (linux64) logging started Sun Nov 18 03:11:15 2012

Optimize a model with 125 rows, 111 columns and 421 nonzeros
Presolve removed 0 rows and 2 columns
Presolve time: 0.00s
Presolved: 125 rows, 109 columns, 419 nonzeros
Variable types: 0 continuous, 109 integer (108 binary)
Found heuristic solution: objective 23.0000000

Root relaxation: objective 0.000000e+00, 65 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   44   23.00000    0.00000   100%     -    0s
H    0     0                      21.0000000    0.00000   100%     -    0s
H    0     0                      19.0000000    0.00000   100%     -    0s
     0     0    0.45455    0   45   19.00000    0.45455  97.6%     -    0s
H    0     0                      18.0000000    0.45455  97.5%     -    0s
     0     0    1.00000    0   48   18.00000    1.00000  94.4%     -    0s
H    0     0                      13.0000000    1.00000  92.3%     -    0s
H    0     0                      11.0000000    1.00000  90.9%     -    0s
     0     0    1.00000    0   48   11.00000    1.00000  90.9%     -    0s
     0     0    1.00000    0   47   11.00000    1.00000  90.9%     -    0s
H    0     0                       9.0000000    1.00000  88.9%     -    0s
     0     2    1.00000    0   47    9.00000    1.00000  88.9%     -    0s
*   21    12              13       8.0000000    2.46085  69.2%  14.1    0s

Cutting planes:
  Gomory: 2
  Mod-K: 1

Explored 115 nodes (2016 simplex iterations) in 0.07 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%