Gurobi 5.0.1 (linux64) logging started Sun Nov 18 03:12:25 2012

Optimize a model with 145 rows, 127 columns and 487 nonzeros
Presolve removed 0 rows and 4 columns
Presolve time: 0.00s
Presolved: 145 rows, 123 columns, 483 nonzeros
Variable types: 0 continuous, 123 integer (122 binary)
Found heuristic solution: objective 24.0000000

Root relaxation: objective 0.000000e+00, 110 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   50   24.00000    0.00000   100%     -    0s
H    0     0                      22.0000000    0.00000   100%     -    0s
     0     0    0.30065    0   52   22.00000    0.30065  98.6%     -    0s
     0     0    0.89290    0   54   22.00000    0.89290  95.9%     -    0s
H    0     0                      21.0000000    0.89290  95.7%     -    0s
H    0     0                      19.0000000    0.89290  95.3%     -    0s
     0     0    0.89714    0   55   19.00000    0.89714  95.3%     -    0s
     0     0    0.89714    0   55   19.00000    0.89714  95.3%     -    0s
H    0     0                      16.0000000    0.89714  94.4%     -    0s
H    0     0                      11.0000000    0.89714  91.8%     -    0s
     0     2    0.90886    0   55   11.00000    0.90886  91.7%     -    0s
*   15     9               9      10.0000000    3.71875  62.8%  25.5    0s
*   35    15               8       9.0000000    4.79856  46.7%  21.9    0s
*   36    14               8       8.0000000    4.79856  40.0%  21.3    0s

Cutting planes:
  Gomory: 4
  Mod-K: 1

Explored 55 nodes (1336 simplex iterations) in 0.08 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%