Gurobi 5.0.1 (linux64) logging started Mon Nov 19 06:43:52 2012

Optimize a model with 1181 rows, 70 columns and 2362 nonzeros
Presolve removed 823 rows and 0 columns
Presolve time: 0.02s
Presolved: 358 rows, 70 columns, 2150 nonzeros
Variable types: 0 continuous, 70 integer (70 binary)
Found heuristic solution: objective 6.0000000

Root relaxation: objective 1.155423e+01, 250 iterations, 0.01 seconds

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

     0     0   11.55423    0   64    6.00000   11.55423  92.6%     -    0s
H    0     0                       8.0000000   11.55423  44.4%     -    0s
     0     0   11.24393    0   65    8.00000   11.24393  40.5%     -    0s
     0     0   11.15680    0   65    8.00000   11.15680  39.5%     -    0s
     0     0   11.14305    0   66    8.00000   11.14305  39.3%     -    0s
     0     0   11.13948    0   66    8.00000   11.13948  39.2%     -    0s
     0     0   11.13402    0   67    8.00000   11.13402  39.2%     -    0s
     0     0   11.13378    0   68    8.00000   11.13378  39.2%     -    0s
     0     2   11.12676    0   68    8.00000   11.12676  39.1%     -    0s

Cutting planes:
  Clique: 24
  Zero half: 8

Explored 51 nodes (2312 simplex iterations) in 0.30 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 8.000000000000e+00, best bound 8.000000000000e+00, gap 0.0%