Gurobi 5.0.1 (linux64) logging started Sat Nov 17 23:38:40 2012

Optimize a model with 93 rows, 77 columns and 307 nonzeros
Presolve removed 0 rows and 1 columns
Presolve time: 0.00s
Presolved: 93 rows, 76 columns, 306 nonzeros
Variable types: 0 continuous, 76 integer (75 binary)
Found heuristic solution: objective 18.0000000

Root relaxation: objective 0.000000e+00, 39 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   29   18.00000    0.00000   100%     -    0s
H    0     0                      12.0000000    0.00000   100%     -    0s
     0     0    0.69732    0   30   12.00000    0.69732  94.2%     -    0s
     0     0    1.13554    0   32   12.00000    1.13554  90.5%     -    0s
     0     0    1.13554    0   32   12.00000    1.13554  90.5%     -    0s
     0     2    1.15030    0   32   12.00000    1.15030  90.4%     -    0s
*   15    14              10       9.0000000    3.62100  59.8%  13.8    0s
*   40     9               6       8.0000000    5.22727  34.7%  10.3    0s

Cutting planes:
  Gomory: 3

Explored 52 nodes (677 simplex iterations) in 0.04 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%