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

Optimize a model with 1341 rows, 73 columns and 2682 nonzeros
Presolve removed 967 rows and 0 columns
Presolve time: 0.03s
Presolved: 374 rows, 73 columns, 2426 nonzeros
Variable types: 0 continuous, 73 integer (73 binary)
Found heuristic solution: objective 7.0000000

Root relaxation: objective 1.131452e+01, 282 iterations, 0.01 seconds

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

     0     0   11.31452    0   67    7.00000   11.31452  61.6%     -    0s
     0     0   11.05316    0   70    7.00000   11.05316  57.9%     -    0s
H    0     0                       8.0000000   11.05316  38.2%     -    0s
     0     0   11.00775    0   70    8.00000   11.00775  37.6%     -    0s
     0     0   10.97594    0   70    8.00000   10.97594  37.2%     -    0s
     0     0   10.96742    0   70    8.00000   10.96742  37.1%     -    0s
     0     0   10.96485    0   70    8.00000   10.96485  37.1%     -    0s
     0     0   10.96443    0   69    8.00000   10.96443  37.1%     -    0s
     0     0   10.96441    0   69    8.00000   10.96441  37.1%     -    0s
     0     2   10.96335    0   69    8.00000   10.96335  37.0%     -    0s

Cutting planes:
  Gomory: 1
  Clique: 36
  Zero half: 6

Explored 43 nodes (2376 simplex iterations) in 0.33 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%