Gurobi 5.0.1 (linux64) logging started Mon Nov 19 06:50:57 2012

Optimize a model with 2807 rows, 107 columns and 5614 nonzeros
Presolve removed 1972 rows and 0 columns
Presolve time: 0.09s
Presolved: 835 rows, 107 columns, 5598 nonzeros
Variable types: 0 continuous, 107 integer (107 binary)
Found heuristic solution: objective 8.0000000

Root relaxation: objective 1.500043e+01, 474 iterations, 0.02 seconds

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

     0     0   15.00043    0  102    8.00000   15.00043  87.5%     -    0s
     0     0   14.74323    0  106    8.00000   14.74323  84.3%     -    0s
     0     0   14.68489    0  104    8.00000   14.68489  83.6%     -    0s
     0     0   14.62659    0  106    8.00000   14.62659  82.8%     -    0s
     0     0   14.60161    0  106    8.00000   14.60161  82.5%     -    0s
H    0     0                       9.0000000   14.60161  62.2%     -    0s
     0     0   14.57116    0  107    9.00000   14.57116  61.9%     -    0s
     0     0   14.56605    0  107    9.00000   14.56605  61.8%     -    0s
     0     0   14.56416    0  107    9.00000   14.56416  61.8%     -    0s
     0     0   14.56412    0  107    9.00000   14.56412  61.8%     -    0s
     0     2   14.56348    0  107    9.00000   14.56348  61.8%     -    1s

Cutting planes:
  Clique: 64
  Zero half: 3

Explored 319 nodes (18371 simplex iterations) in 2.23 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%