Gurobi 5.0.1 (linux64) logging started Sun Nov 18 03:11:25 2012

Optimize a model with 135 rows, 117 columns and 452 nonzeros
Presolve removed 0 rows and 2 columns
Presolve time: 0.00s
Presolved: 135 rows, 115 columns, 450 nonzeros
Variable types: 0 continuous, 115 integer (114 binary)
Found heuristic solution: objective 27.0000000

Root relaxation: objective 0.000000e+00, 76 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   47   27.00000    0.00000   100%     -    0s
H    0     0                      15.0000000    0.00000   100%     -    0s
     0     0    0.45899    0   49   15.00000    0.45899  96.9%     -    0s
     0     0    0.91491    0   53   15.00000    0.91491  93.9%     -    0s
     0     0    0.91491    0   53   15.00000    0.91491  93.9%     -    0s
H    0     0                      14.0000000    0.91491  93.5%     -    0s
H    0     0                      12.0000000    0.91491  92.4%     -    0s
     0     2    0.92101    0   53   12.00000    0.92101  92.3%     -    0s
*   17    12              12      10.0000000    1.73052  82.7%  20.8    0s
H   27    12                       9.0000000    3.75927  58.2%  21.4    0s
*   47    11              11       8.0000000    4.71002  41.1%  17.3    0s

Cutting planes:
  Gomory: 3
  Mod-K: 1

Explored 65 nodes (1321 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%