Gurobi 5.0.1 (linux64) logging started Mon Nov 19 06:46:03 2012

Optimize a model with 2016 rows, 90 columns and 4032 nonzeros
Presolve removed 1445 rows and 0 columns
Presolve time: 0.06s
Presolved: 571 rows, 90 columns, 3740 nonzeros
Variable types: 0 continuous, 90 integer (90 binary)
Found heuristic solution: objective 7.0000000

Root relaxation: objective 1.328003e+01, 389 iterations, 0.01 seconds

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

     0     0   13.28003    0   88    7.00000   13.28003  89.7%     -    0s
     0     0   13.00540    0   89    7.00000   13.00540  85.8%     -    0s
H    0     0                       8.0000000   13.00540  62.6%     -    0s
     0     0   12.88503    0   87    8.00000   12.88503  61.1%     -    0s
H    0     0                       9.0000000   12.88503  43.2%     -    0s
     0     0   12.81645    0   89    9.00000   12.81645  42.4%     -    0s
     0     0   12.78090    0   89    9.00000   12.78090  42.0%     -    0s
     0     0   12.74875    0   89    9.00000   12.74875  41.7%     -    0s
     0     0   12.74772    0   88    9.00000   12.74772  41.6%     -    0s
     0     0   12.74533    0   89    9.00000   12.74533  41.6%     -    0s
     0     0   12.73495    0   89    9.00000   12.73495  41.5%     -    0s
     0     0   12.73242    0   89    9.00000   12.73242  41.5%     -    0s
     0     0   12.73235    0   89    9.00000   12.73235  41.5%     -    0s
     0     2   12.73230    0   89    9.00000   12.73230  41.5%     -    0s

Cutting planes:
  Clique: 48
  Zero half: 4

Explored 70 nodes (5425 simplex iterations) in 1.04 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%