Gurobi 5.0.1 (linux64) logging started Sun Nov 18 03:11:36 2012

Optimize a model with 141 rows, 121 columns and 471 nonzeros
Presolve time: 0.00s
Presolved: 141 rows, 121 columns, 471 nonzeros
Variable types: 0 continuous, 121 integer (121 binary)
Found heuristic solution: objective 27.0000000

Root relaxation: objective 0.000000e+00, 78 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   27.00000    0.00000   100%     -    0s
H    0     0                      26.0000000    0.00000   100%     -    0s
H    0     0                      24.0000000    0.00000   100%     -    0s
H    0     0                      23.0000000    0.00000   100%     -    0s
     0     0    0.66667    0   51   23.00000    0.66667  97.1%     -    0s
H    0     0                      18.0000000    0.66667  96.3%     -    0s
     0     0    1.00000    0   52   18.00000    1.00000  94.4%     -    0s
H    0     0                      17.0000000    1.00000  94.1%     -    0s
     0     0    1.00448    0   54   17.00000    1.00448  94.1%     -    0s
     0     0    1.00448    0   54   17.00000    1.00448  94.1%     -    0s
H    0     0                      15.0000000    1.00448  93.3%     -    0s
H    0     0                      13.0000000    1.00448  92.3%     -    0s
     0     2    1.00624    0   54   13.00000    1.00624  92.3%     -    0s
*   10    10               7       9.0000000    2.52893  71.9%  34.5    0s
*   20     8               5       8.0000000    2.57990  67.8%  25.3    0s

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

Explored 51 nodes (1282 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%