Gurobi 5.0.1 (linux64) logging started Mon Nov 19 06:44:22 2012

Optimize a model with 1476 rows, 77 columns and 2952 nonzeros
Presolve removed 1052 rows and 0 columns
Presolve time: 0.03s
Presolved: 424 rows, 77 columns, 2656 nonzeros
Variable types: 0 continuous, 77 integer (77 binary)
Found heuristic solution: objective 7.0000000

Root relaxation: objective 1.168732e+01, 226 iterations, 0.01 seconds

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

     0     0   11.68732    0   75    7.00000   11.68732  67.0%     -    0s
     0     0   11.40355    0   74    7.00000   11.40355  62.9%     -    0s
     0     0   11.30591    0   75    7.00000   11.30591  61.5%     -    0s
     0     0   11.26835    0   76    7.00000   11.26835  61.0%     -    0s
     0     0   11.26336    0   76    7.00000   11.26336  60.9%     -    0s
     0     0   11.24740    0   76    7.00000   11.24740  60.7%     -    0s
H    0     0                       8.0000000   11.24740  40.6%     -    0s
     0     0   11.24575    0   76    8.00000   11.24575  40.6%     -    0s
     0     0   11.24152    0   76    8.00000   11.24152  40.5%     -    0s
     0     0   11.24149    0   76    8.00000   11.24149  40.5%     -    0s
     0     2   11.24147    0   76    8.00000   11.24147  40.5%     -    0s

Cutting planes:
  Clique: 47
  Zero half: 4

Explored 57 nodes (3189 simplex iterations) in 0.48 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%