Gurobi 5.0.1 (linux64) logging started Mon Nov 19 06:47:56 2012

Optimize a model with 2417 rows, 99 columns and 4834 nonzeros
Presolve removed 1758 rows and 0 columns
Presolve time: 0.07s
Presolved: 659 rows, 99 columns, 4412 nonzeros
Variable types: 0 continuous, 99 integer (99 binary)
Found heuristic solution: objective 6.0000000

Root relaxation: objective 1.426508e+01, 375 iterations, 0.01 seconds

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

     0     0   14.26508    0   94    6.00000   14.26508   138%     -    0s
H    0     0                       8.0000000   14.26508  78.3%     -    0s
     0     0   13.93289    0   96    8.00000   13.93289  74.2%     -    0s
     0     0   13.84096    0   98    8.00000   13.84096  73.0%     -    0s
     0     0   13.78878    0   97    8.00000   13.78878  72.4%     -    0s
H    0     0                       9.0000000   13.78878  53.2%     -    0s
     0     0   13.77074    0   98    9.00000   13.77074  53.0%     -    0s
     0     0   13.74338    0   97    9.00000   13.74338  52.7%     -    0s
     0     0   13.70849    0   98    9.00000   13.70849  52.3%     -    0s
     0     0   13.68720    0   97    9.00000   13.68720  52.1%     -    0s
     0     0   13.68341    0   97    9.00000   13.68341  52.0%     -    0s
     0     0   13.68267    0   97    9.00000   13.68267  52.0%     -    0s
     0     0   13.68259    0   97    9.00000   13.68259  52.0%     -    0s
     0     2   13.68173    0   97    9.00000   13.68173  52.0%     -    1s

Cutting planes:
  Clique: 55
  Zero half: 1

Explored 166 nodes (10462 simplex iterations) in 1.69 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%