Gurobi 5.0.1 (linux64) logging started Mon Nov 19 07:11:14 2012

Optimize a model with 4453 rows, 133 columns and 8906 nonzeros
Presolve removed 3198 rows and 0 columns
Presolve time: 0.16s
Presolved: 1255 rows, 133 columns, 8981 nonzeros
Variable types: 0 continuous, 133 integer (133 binary)
Found heuristic solution: objective 8.0000000

Root relaxation: objective 1.715135e+01, 606 iterations, 0.03 seconds

    Nodes    |    Current Node    |     Objective Bounds      |     Work
 Expl Unexpl |  Obj  Depth IntInf | Incumbent    BestBd   Gap | It/Node Time

     0     0   17.15135    0  131    8.00000   17.15135   114%     -    0s
     0     0   16.77065    0  132    8.00000   16.77065   110%     -    0s
H    0     0                       9.0000000   16.77065  86.3%     -    0s
     0     0   16.63538    0  133    9.00000   16.63538  84.8%     -    0s
     0     0   16.55534    0  131    9.00000   16.55534  83.9%     -    0s
     0     0   16.53684    0  132    9.00000   16.53684  83.7%     -    1s
     0     0   16.53253    0  132    9.00000   16.53253  83.7%     -    1s
     0     0   16.53211    0  132    9.00000   16.53211  83.7%     -    1s
     0     0   16.53200    0  131    9.00000   16.53200  83.7%     -    1s
     0     2   16.53105    0  131    9.00000   16.53105  83.7%     -    2s
   530   246   11.28889   23   53    9.00000   13.61061  51.2%  67.3    5s
*  559   179               9      10.0000000   13.59159  35.9%  65.5    5s

Cutting planes:
  Clique: 103

Explored 809 nodes (50317 simplex iterations) in 6.12 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 1.000000000000e+01, best bound 1.000000000000e+01, gap 0.0%