Gurobi 5.0.1 (linux64) logging started Mon Nov 19 06:44:14 2012

Optimize a model with 1386 rows, 75 columns and 2772 nonzeros
Presolve removed 962 rows and 0 columns
Presolve time: 0.03s
Presolved: 424 rows, 75 columns, 2633 nonzeros
Variable types: 0 continuous, 75 integer (75 binary)
Found heuristic solution: objective 7.0000000

Root relaxation: objective 1.181234e+01, 250 iterations, 0.01 seconds

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

     0     0   11.81234    0   73    7.00000   11.81234  68.7%     -    0s
H    0     0                       8.0000000   11.81234  47.7%     -    0s
     0     0   11.59075    0   73    8.00000   11.59075  44.9%     -    0s
     0     0   11.51724    0   73    8.00000   11.51724  44.0%     -    0s
     0     0   11.47626    0   75    8.00000   11.47626  43.5%     -    0s
     0     0   11.43983    0   75    8.00000   11.43983  43.0%     -    0s
     0     0   11.39062    0   75    8.00000   11.39062  42.4%     -    0s
     0     0   11.38450    0   75    8.00000   11.38450  42.3%     -    0s
     0     0   11.37985    0   75    8.00000   11.37985  42.2%     -    0s
     0     0   11.37971    0   75    8.00000   11.37971  42.2%     -    0s
     0     0   11.37471    0   74    8.00000   11.37471  42.2%     -    0s
     0     0   11.36596    0   75    8.00000   11.36596  42.1%     -    0s
     0     0   11.35829    0   75    8.00000   11.35829  42.0%     -    0s
     0     0   11.35578    0   75    8.00000   11.35578  41.9%     -    0s
     0     0   11.35478    0   75    8.00000   11.35478  41.9%     -    0s
     0     2   11.35405    0   75    8.00000   11.35405  41.9%     -    0s

Cutting planes:
  Clique: 30
  Zero half: 12

Explored 66 nodes (3605 simplex iterations) in 0.56 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%