Gurobi 5.0.1 (linux64) logging started Mon Nov 19 06:44:23 2012

Optimize a model with 1456 rows, 77 columns and 2912 nonzeros
Presolve removed 992 rows and 0 columns
Presolve time: 0.03s
Presolved: 464 rows, 77 columns, 2941 nonzeros
Variable types: 0 continuous, 77 integer (77 binary)
Found heuristic solution: objective 6.0000000

Root relaxation: objective 1.234774e+01, 350 iterations, 0.01 seconds

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

     0     0   12.34774    0   66    6.00000   12.34774   106%     -    0s
H    0     0                       7.0000000   12.34774  76.4%     -    0s
     0     0   11.68627    0   75    7.00000   11.68627  66.9%     -    0s
H    0     0                       8.0000000   11.68627  46.1%     -    0s
     0     0   11.65971    0   75    8.00000   11.65971  45.7%     -    0s
     0     0   11.64519    0   75    8.00000   11.64519  45.6%     -    0s
     0     0   11.62263    0   74    8.00000   11.62263  45.3%     -    0s
     0     0   11.61060    0   74    8.00000   11.61060  45.1%     -    0s
H    0     0                       9.0000000   11.61060  29.0%     -    0s
     0     0   11.59517    0   74    9.00000   11.59517  28.8%     -    0s
     0     0   11.58443    0   76    9.00000   11.58443  28.7%     -    0s
     0     0   11.58298    0   76    9.00000   11.58298  28.7%     -    0s
     0     0   11.58276    0   76    9.00000   11.58276  28.7%     -    0s
     0     2   11.57975    0   76    9.00000   11.57975  28.7%     -    0s

Cutting planes:
  Clique: 42
  Zero half: 3

Explored 27 nodes (2223 simplex iterations) in 0.45 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%