Gurobi 5.0.1 (linux64) logging started Mon Nov 19 06:44:20 2012

Optimize a model with 1457 rows, 77 columns and 2914 nonzeros
Presolve removed 1023 rows and 0 columns
Presolve time: 0.04s
Presolved: 434 rows, 77 columns, 2736 nonzeros
Variable types: 0 continuous, 77 integer (77 binary)
Found heuristic solution: objective 6.0000000

Root relaxation: objective 1.210037e+01, 267 iterations, 0.01 seconds

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

     0     0   12.10037    0   68    6.00000   12.10037   102%     -    0s
H    0     0                       7.0000000   12.10037  72.9%     -    0s
     0     0   11.71061    0   76    7.00000   11.71061  67.3%     -    0s
H    0     0                       8.0000000   11.71061  46.4%     -    0s
     0     0   11.65174    0   74    8.00000   11.65174  45.6%     -    0s
     0     0   11.62583    0   75    8.00000   11.62583  45.3%     -    0s
     0     0   11.56664    0   74    8.00000   11.56664  44.6%     -    0s
H    0     0                       9.0000000   11.56664  28.5%     -    0s
     0     0   11.55082    0   76    9.00000   11.55082  28.3%     -    0s
     0     0   11.55081    0   76    9.00000   11.55081  28.3%     -    0s
     0     2   11.54852    0   76    9.00000   11.54852  28.3%     -    0s

Cutting planes:
  Clique: 27
  Zero half: 3

Explored 25 nodes (1937 simplex iterations) in 0.33 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%