Gurobi 5.0.1 (linux64) logging started Mon Nov 19 06:44:38 2012

Optimize a model with 1587 rows, 80 columns and 3174 nonzeros
Presolve removed 1146 rows and 0 columns
Presolve time: 0.03s
Presolved: 441 rows, 80 columns, 2745 nonzeros
Variable types: 0 continuous, 80 integer (80 binary)
Found heuristic solution: objective 8.0000000

Root relaxation: objective 1.261513e+01, 282 iterations, 0.01 seconds

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

     0     0   12.61513    0   74    8.00000   12.61513  57.7%     -    0s
H    0     0                       9.0000000   12.61513  40.2%     -    0s
     0     0   12.23457    0   77    9.00000   12.23457  35.9%     -    0s
     0     0   12.16658    0   77    9.00000   12.16658  35.2%     -    0s
     0     0   12.09889    0   79    9.00000   12.09889  34.4%     -    0s
     0     0   12.07797    0   80    9.00000   12.07797  34.2%     -    0s
     0     0   12.07317    0   79    9.00000   12.07317  34.1%     -    0s
     0     0   12.07315    0   79    9.00000   12.07315  34.1%     -    0s
     0     2   12.07249    0   79    9.00000   12.07249  34.1%     -    0s
*   23     9               3      10.0000000   11.85491  18.5%  50.5    0s

Cutting planes:
  Clique: 35
  Zero half: 2

Explored 33 nodes (1819 simplex iterations) in 0.38 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%