Gurobi 5.0.1 (linux64) logging started Mon Nov 19 06:45:04 2012

Optimize a model with 1773 rows, 84 columns and 3546 nonzeros
Presolve removed 1265 rows and 0 columns
Presolve time: 0.05s
Presolved: 508 rows, 84 columns, 3285 nonzeros
Variable types: 0 continuous, 84 integer (84 binary)
Found heuristic solution: objective 5.0000000

Root relaxation: objective 1.260967e+01, 255 iterations, 0.01 seconds

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

     0     0   12.60967    0   77    5.00000   12.60967   152%     -    0s
H    0     0                       8.0000000   12.60967  57.6%     -    0s
     0     0   12.21641    0   82    8.00000   12.21641  52.7%     -    0s
     0     0   12.15279    0   83    8.00000   12.15279  51.9%     -    0s
     0     0   12.12944    0   83    8.00000   12.12944  51.6%     -    0s
     0     0   12.12570    0   84    8.00000   12.12570  51.6%     -    0s
     0     0   12.12567    0   84    8.00000   12.12567  51.6%     -    0s
     0     0   12.12559    0   84    8.00000   12.12559  51.6%     -    0s
H    0     0                       9.0000000   12.12559  34.7%     -    0s
     0     2   12.12504    0   84    9.00000   12.12504  34.7%     -    0s

Cutting planes:
  Clique: 42
  Zero half: 5

Explored 43 nodes (2914 simplex iterations) in 0.53 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%