Gurobi 5.0.1 (linux64) logging started Mon Nov 19 06:43:45 2012

Optimize a model with 1121 rows, 68 columns and 2242 nonzeros
Presolve removed 786 rows and 0 columns
Presolve time: 0.02s
Presolved: 335 rows, 68 columns, 1981 nonzeros
Variable types: 0 continuous, 68 integer (68 binary)
Found heuristic solution: objective 7.0000000

Root relaxation: objective 1.149295e+01, 146 iterations, 0.00 seconds

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

     0     0   11.49295    0   64    7.00000   11.49295  64.2%     -    0s
H    0     0                       8.0000000   11.49295  43.7%     -    0s
     0     0   11.16364    0   64    8.00000   11.16364  39.5%     -    0s
     0     0   11.06247    0   66    8.00000   11.06247  38.3%     -    0s
     0     0   11.01702    0   66    8.00000   11.01702  37.7%     -    0s
     0     0   10.99839    0   68    8.00000   10.99839  37.5%     -    0s
     0     0   10.97207    0   67    8.00000   10.97207  37.2%     -    0s
     0     0   10.97200    0   67    8.00000   10.97200  37.1%     -    0s
     0     2   10.96475    0   67    8.00000   10.96475  37.1%     -    0s
*   24     5               4       9.0000000   10.66179  18.5%  36.6    0s

Cutting planes:
  Clique: 27
  Zero half: 4

Explored 30 nodes (1340 simplex iterations) in 0.24 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%