Gurobi 5.0.1 (linux64) logging started Mon Nov 19 06:44:24 2012

Optimize a model with 1462 rows, 78 columns and 2924 nonzeros
Presolve removed 1041 rows and 0 columns
Presolve time: 0.03s
Presolved: 421 rows, 78 columns, 2577 nonzeros
Variable types: 0 continuous, 78 integer (78 binary)
Found heuristic solution: objective 6.0000000

Root relaxation: objective 1.220644e+01, 237 iterations, 0.01 seconds

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

     0     0   12.20644    0   74    6.00000   12.20644   103%     -    0s
H    0     0                       7.0000000   12.20644  74.4%     -    0s
H    0     0                       8.0000000   12.20644  52.6%     -    0s
     0     0   11.93532    0   75    8.00000   11.93532  49.2%     -    0s
     0     0   11.88338    0   74    8.00000   11.88338  48.5%     -    0s
     0     0   11.84876    0   76    8.00000   11.84876  48.1%     -    0s
     0     0   11.83887    0   75    8.00000   11.83887  48.0%     -    0s
     0     0   11.83636    0   75    8.00000   11.83636  48.0%     -    0s
H    0     0                       9.0000000   11.83636  31.5%     -    0s
     0     0   11.83629    0   75    9.00000   11.83629  31.5%     -    0s
     0     2   11.83595    0   75    9.00000   11.83595  31.5%     -    0s

Cutting planes:
  Gomory: 1
  Clique: 34
  Zero half: 9

Explored 29 nodes (2060 simplex iterations) in 0.35 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%