Gurobi 5.0.1 (linux64) logging started Sun Nov 18 03:12:39 2012

Optimize a model with 147 rows, 129 columns and 494 nonzeros
Presolve removed 0 rows and 5 columns
Presolve time: 0.00s
Presolved: 147 rows, 124 columns, 489 nonzeros
Variable types: 0 continuous, 124 integer (123 binary)
Found heuristic solution: objective 36.0000000
Found heuristic solution: objective 32.0000000

Root relaxation: objective 0.000000e+00, 80 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   32.00000    0.00000   100%     -    0s
H    0     0                      31.0000000    0.00000   100%     -    0s
H    0     0                      27.0000000    0.00000   100%     -    0s
H    0     0                      24.0000000    0.00000   100%     -    0s
     0     0    0.44000    0   51   24.00000    0.44000  98.2%     -    0s
H    0     0                      21.0000000    0.44000  97.9%     -    0s
H    0     0                      16.0000000    0.44000  97.2%     -    0s
     0     0    1.13705    0   53   16.00000    1.13705  92.9%     -    0s
     0     0    1.31730    0   54   16.00000    1.31730  91.8%     -    0s
     0     0    1.31979    0   54   16.00000    1.31979  91.8%     -    0s
     0     0    1.31979    0   54   16.00000    1.31979  91.8%     -    0s
H    0     0                      15.0000000    1.31979  91.2%     -    0s
     0     2    1.32656    0   54   15.00000    1.32656  91.2%     -    0s
*   15    15               9      10.0000000    3.04545  69.5%  23.5    0s
*   37    14              12       8.0000000    4.57235  42.8%  19.7    0s

Cutting planes:
  Gomory: 4
  Mod-K: 2

Explored 64 nodes (1551 simplex iterations) in 0.10 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%