Gurobi 5.0.1 (linux64) logging started Mon Nov 19 06:44:57 2012

Optimize a model with 1734 rows, 83 columns and 3468 nonzeros
Presolve removed 1246 rows and 0 columns
Presolve time: 0.04s
Presolved: 488 rows, 83 columns, 3198 nonzeros
Variable types: 0 continuous, 83 integer (83 binary)
Found heuristic solution: objective 7.0000000

Root relaxation: objective 1.222314e+01, 276 iterations, 0.01 seconds

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

     0     0   12.22314    0   77    7.00000   12.22314  74.6%     -    0s
H    0     0                       8.0000000   12.22314  52.8%     -    0s
H    0     0                       9.0000000   12.22314  35.8%     -    0s
     0     0   11.91070    0   81    9.00000   11.91070  32.3%     -    0s
     0     0   11.83761    0   82    9.00000   11.83761  31.5%     -    0s
     0     0   11.82322    0   81    9.00000   11.82322  31.4%     -    0s
     0     0   11.81171    0   82    9.00000   11.81171  31.2%     -    0s
     0     0   11.80956    0   82    9.00000   11.80956  31.2%     -    0s
     0     0   11.80948    0   82    9.00000   11.80948  31.2%     -    0s
     0     2   11.80618    0   82    9.00000   11.80618  31.2%     -    0s

Cutting planes:
  Clique: 42
  Zero half: 6

Explored 31 nodes (2404 simplex iterations) in 0.42 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%