Gurobi 5.0.1 (linux64) logging started Mon Nov 19 06:43:54 2012

Optimize a model with 1242 rows, 70 columns and 2484 nonzeros
Presolve removed 887 rows and 0 columns
Presolve time: 0.03s
Presolved: 355 rows, 70 columns, 2270 nonzeros
Variable types: 0 continuous, 70 integer (70 binary)
Found heuristic solution: objective 6.0000000

Root relaxation: objective 1.070133e+01, 238 iterations, 0.01 seconds

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

     0     0   10.70133    0   68    6.00000   10.70133  78.4%     -    0s
H    0     0                       7.0000000   10.70133  52.9%     -    0s
     0     0   10.56093    0   67    7.00000   10.56093  50.9%     -    0s
H    0     0                       8.0000000   10.56093  32.0%     -    0s
     0     0   10.51536    0   69    8.00000   10.51536  31.4%     -    0s
     0     0   10.46282    0   68    8.00000   10.46282  30.8%     -    0s
     0     0   10.43630    0   69    8.00000   10.43630  30.5%     -    0s
     0     0   10.41985    0   69    8.00000   10.41985  30.2%     -    0s
     0     0   10.38998    0   68    8.00000   10.38998  29.9%     -    0s
     0     0   10.37071    0   68    8.00000   10.37071  29.6%     -    0s
     0     0   10.36095    0   67    8.00000   10.36095  29.5%     -    0s
     0     0   10.35677    0   68    8.00000   10.35677  29.5%     -    0s
     0     0   10.35646    0   68    8.00000   10.35646  29.5%     -    0s
     0     0   10.35611    0   68    8.00000   10.35611  29.5%     -    0s
     0     2   10.35533    0   68    8.00000   10.35533  29.4%     -    0s

Cutting planes:
  Clique: 25
  Zero half: 9

Explored 29 nodes (1977 simplex iterations) in 0.32 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%