Gurobi 5.0.1 (linux64) logging started Mon Nov 19 06:44:23 2012

Optimize a model with 1491 rows, 77 columns and 2982 nonzeros
Presolve removed 1078 rows and 0 columns
Presolve time: 0.04s
Presolved: 413 rows, 77 columns, 2688 nonzeros
Variable types: 0 continuous, 77 integer (77 binary)
Found heuristic solution: objective 6.0000000

Root relaxation: objective 1.157350e+01, 327 iterations, 0.01 seconds

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

     0     0   11.57350    0   68    6.00000   11.57350  92.9%     -    0s
H    0     0                       7.0000000   11.57350  65.3%     -    0s
     0     0   11.26924    0   70    7.00000   11.26924  61.0%     -    0s
H    0     0                       8.0000000   11.26924  40.9%     -    0s
     0     0   11.20142    0   73    8.00000   11.20142  40.0%     -    0s
     0     0   11.20086    0   73    8.00000   11.20086  40.0%     -    0s
     0     0   11.20080    0   73    8.00000   11.20080  40.0%     -    0s
     0     2   11.19656    0   73    8.00000   11.19656  40.0%     -    0s

Cutting planes:
  Clique: 43
  Zero half: 3

Explored 59 nodes (3196 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%