Gurobi 5.0.1 (linux64) logging started Mon Nov 19 06:44:11 2012

Optimize a model with 1383 rows, 75 columns and 2766 nonzeros
Presolve removed 965 rows and 0 columns
Presolve time: 0.03s
Presolved: 418 rows, 75 columns, 2608 nonzeros
Variable types: 0 continuous, 75 integer (75 binary)
Found heuristic solution: objective 5.0000000

Root relaxation: objective 1.208770e+01, 223 iterations, 0.01 seconds

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

     0     0   12.08770    0   68    5.00000   12.08770   142%     -    0s
H    0     0                       6.0000000   12.08770   101%     -    0s
H    0     0                       8.0000000   12.08770  51.1%     -    0s
     0     0   11.66414    0   73    8.00000   11.66414  45.8%     -    0s
     0     0   11.57754    0   74    8.00000   11.57754  44.7%     -    0s
H    0     0                       9.0000000   11.57754  28.6%     -    0s
     0     0   11.55488    0   75    9.00000   11.55488  28.4%     -    0s
     0     0   11.55303    0   75    9.00000   11.55303  28.4%     -    0s
     0     0   11.55279    0   74    9.00000   11.55279  28.4%     -    0s
     0     0   11.55223    0   75    9.00000   11.55223  28.4%     -    0s
     0     2   11.55051    0   75    9.00000   11.55051  28.3%     -    0s

Cutting planes:
  Clique: 29
  Zero half: 6

Explored 21 nodes (1481 simplex iterations) in 0.31 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%