Gurobi 5.0.1 (linux64) logging started Mon Nov 19 07:03:25 2012

Optimize a model with 3997 rows, 126 columns and 7994 nonzeros
Presolve removed 2927 rows and 0 columns
Presolve time: 0.14s
Presolved: 1070 rows, 126 columns, 7681 nonzeros
Variable types: 0 continuous, 126 integer (126 binary)
Found heuristic solution: objective 7.0000000

Root relaxation: objective 1.615226e+01, 545 iterations, 0.03 seconds

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

     0     0   16.15226    0  120    7.00000   16.15226   131%     -    0s
H    0     0                       8.0000000   16.15226   102%     -    0s
     0     0   15.82860    0  123    8.00000   15.82860  97.9%     -    0s
     0     0   15.72257    0  125    8.00000   15.72257  96.5%     -    0s
     0     0   15.68738    0  125    8.00000   15.68738  96.1%     -    0s
H    0     0                       9.0000000   15.68738  74.3%     -    0s
     0     0   15.66699    0  126    9.00000   15.66699  74.1%     -    0s
     0     0   15.66258    0  125    9.00000   15.66258  74.0%     -    0s
     0     0   15.66141    0  125    9.00000   15.66141  74.0%     -    1s
     0     0   15.66083    0  125    9.00000   15.66083  74.0%     -    1s
     0     0   15.66080    0  125    9.00000   15.66080  74.0%     -    1s
     0     2   15.65711    0  125    9.00000   15.65711  74.0%     -    2s

Cutting planes:
  Clique: 100

Explored 723 nodes (43135 simplex iterations) in 4.99 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 9.000000000000e+00, best bound 9.000000000000e+00, gap 0.0%