Gurobi 5.0.1 (linux64) logging started Mon Nov 19 06:59:30 2012

Optimize a model with 3681 rows, 122 columns and 7362 nonzeros
Presolve removed 2626 rows and 0 columns
Presolve time: 0.13s
Presolved: 1055 rows, 122 columns, 7639 nonzeros
Variable types: 0 continuous, 122 integer (122 binary)
Found heuristic solution: objective 8.0000000

Root relaxation: objective 1.594479e+01, 521 iterations, 0.03 seconds

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

     0     0   15.94479    0  118    8.00000   15.94479  99.3%     -    0s
     0     0   15.66719    0  121    8.00000   15.66719  95.8%     -    0s
     0     0   15.56595    0  121    8.00000   15.56595  94.6%     -    0s
H    0     0                       9.0000000   15.56595  73.0%     -    0s
     0     0   15.53356    0  122    9.00000   15.53356  72.6%     -    0s
     0     0   15.52242    0  122    9.00000   15.52242  72.5%     -    0s
     0     0   15.52150    0  122    9.00000   15.52150  72.5%     -    1s
     0     0   15.52094    0  122    9.00000   15.52094  72.5%     -    1s
     0     2   15.51965    0  122    9.00000   15.51965  72.4%     -    1s
*  430    68               7      10.0000000   12.26738  22.7%  62.5    3s

Cutting planes:
  Clique: 50
  Zero half: 8

Explored 500 nodes (29723 simplex iterations) in 3.54 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 1.000000000000e+01, best bound 1.000000000000e+01, gap 0.0%