Gurobi 5.0.1 (linux64) logging started Mon Nov 19 06:44:07 2012

Optimize a model with 1352 rows, 74 columns and 2704 nonzeros
Presolve removed 956 rows and 0 columns
Presolve time: 0.03s
Presolved: 396 rows, 74 columns, 2476 nonzeros
Variable types: 0 continuous, 74 integer (74 binary)
Found heuristic solution: objective 6.0000000

Root relaxation: objective 1.179007e+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   11.79007    0   70    6.00000   11.79007  96.5%     -    0s
H    0     0                       8.0000000   11.79007  47.4%     -    0s
     0     0   11.45144    0   69    8.00000   11.45144  43.1%     -    0s
     0     0   11.38723    0   71    8.00000   11.38723  42.3%     -    0s
     0     0   11.36257    0   71    8.00000   11.36257  42.0%     -    0s
     0     0   11.34533    0   71    8.00000   11.34533  41.8%     -    0s
     0     0   11.33566    0   71    8.00000   11.33566  41.7%     -    0s
     0     0   11.32948    0   72    8.00000   11.32948  41.6%     -    0s
     0     0   11.32789    0   72    8.00000   11.32789  41.6%     -    0s
     0     0   11.32773    0   72    8.00000   11.32773  41.6%     -    0s
     0     0   11.32773    0   72    8.00000   11.32773  41.6%     -    0s
     0     2   11.32607    0   72    8.00000   11.32607  41.6%     -    0s

Cutting planes:
  Clique: 49
  Zero half: 3

Explored 61 nodes (3132 simplex iterations) in 0.34 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%