Gurobi 5.0.1 (linux64) logging started Mon Nov 19 06:44:04 2012

Optimize a model with 1331 rows, 73 columns and 2662 nonzeros
Presolve removed 945 rows and 0 columns
Presolve time: 0.02s
Presolved: 386 rows, 73 columns, 2420 nonzeros
Variable types: 0 continuous, 73 integer (73 binary)
Found heuristic solution: objective 7.0000000

Root relaxation: objective 1.152205e+01, 208 iterations, 0.00 seconds

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

     0     0   11.52205    0   63    7.00000   11.52205  64.6%     -    0s
H    0     0                       8.0000000   11.52205  44.0%     -    0s
     0     0   11.18387    0   69    8.00000   11.18387  39.8%     -    0s
     0     0   11.11399    0   72    8.00000   11.11399  38.9%     -    0s
     0     0   11.03762    0   71    8.00000   11.03762  38.0%     -    0s
     0     0   11.00726    0   69    8.00000   11.00726  37.6%     -    0s
     0     0   10.97783    0   72    8.00000   10.97783  37.2%     -    0s
     0     0   10.96503    0   71    8.00000   10.96503  37.1%     -    0s
     0     0   10.95682    0   71    8.00000   10.95682  37.0%     -    0s
     0     0   10.95110    0   71    8.00000   10.95110  36.9%     -    0s
     0     0   10.94838    0   72    8.00000   10.94838  36.9%     -    0s
     0     2   10.94797    0   72    8.00000   10.94797  36.8%     -    0s

Cutting planes:
  Clique: 40
  Zero half: 4

Explored 45 nodes (2207 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%