Gurobi 5.0.1 (linux64) logging started Mon Nov 19 06:45:18 2012

Optimize a model with 1803 rows, 86 columns and 3606 nonzeros
Presolve removed 1248 rows and 0 columns
Presolve time: 0.04s
Presolved: 555 rows, 86 columns, 3610 nonzeros
Variable types: 0 continuous, 86 integer (86 binary)
Found heuristic solution: objective 5.0000000

Root relaxation: objective 1.327697e+01, 305 iterations, 0.01 seconds

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

     0     0   13.27697    0   81    5.00000   13.27697   166%     -    0s
H    0     0                       7.0000000   13.27697  89.7%     -    0s
     0     0   13.01870    0   82    7.00000   13.01870  86.0%     -    0s
     0     0   12.95539    0   84    7.00000   12.95539  85.1%     -    0s
H    0     0                       8.0000000   12.95539  61.9%     -    0s
     0     0   12.90088    0   84    8.00000   12.90088  61.3%     -    0s
     0     0   12.87956    0   84    8.00000   12.87956  61.0%     -    0s
     0     0   12.84377    0   86    8.00000   12.84377  60.5%     -    0s
     0     0   12.84352    0   85    8.00000   12.84352  60.5%     -    0s
     0     0   12.84228    0   85    8.00000   12.84228  60.5%     -    0s
H    0     0                       9.0000000   12.84228  42.7%     -    0s
     0     0   12.83272    0   86    9.00000   12.83272  42.6%     -    0s
     0     0   12.83262    0   86    9.00000   12.83262  42.6%     -    0s
     0     2   12.82945    0   86    9.00000   12.82945  42.5%     -    0s

Cutting planes:
  Clique: 41
  Zero half: 2

Explored 73 nodes (4711 simplex iterations) in 0.88 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%