Gurobi 5.0.1 (linux64) logging started Mon Nov 19 06:45:43 2012

Optimize a model with 1917 rows, 88 columns and 3834 nonzeros
Presolve removed 1337 rows and 0 columns
Presolve time: 0.05s
Presolved: 580 rows, 88 columns, 3872 nonzeros
Variable types: 0 continuous, 88 integer (88 binary)
Found heuristic solution: objective 7.0000000

Root relaxation: objective 1.285856e+01, 306 iterations, 0.01 seconds

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

     0     0   12.85856    0   82    7.00000   12.85856  83.7%     -    0s
     0     0   12.58100    0   86    7.00000   12.58100  79.7%     -    0s
     0     0   12.54706    0   86    7.00000   12.54706  79.2%     -    0s
H    0     0                       8.0000000   12.54706  56.8%     -    0s
     0     0   12.53336    0   85    8.00000   12.53336  56.7%     -    0s
     0     0   12.52557    0   86    8.00000   12.52557  56.6%     -    0s
     0     0   12.50485    0   86    8.00000   12.50485  56.3%     -    0s
     0     0   12.50302    0   86    8.00000   12.50302  56.3%     -    0s
     0     0   12.50215    0   86    8.00000   12.50215  56.3%     -    0s
     0     0   12.50202    0   86    8.00000   12.50202  56.3%     -    0s
     0     2   12.50130    0   86    8.00000   12.50130  56.3%     -    0s

Cutting planes:
  Clique: 49
  Zero half: 2

Explored 197 nodes (9338 simplex iterations) in 1.07 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%