Gurobi 5.0.1 (linux64) logging started Mon Nov 19 06:45:15 2012

Optimize a model with 1792 rows, 85 columns and 3584 nonzeros
Presolve removed 1275 rows and 0 columns
Presolve time: 0.04s
Presolved: 517 rows, 85 columns, 3377 nonzeros
Variable types: 0 continuous, 85 integer (85 binary)
Found heuristic solution: objective 7.0000000

Root relaxation: objective 1.260486e+01, 307 iterations, 0.01 seconds

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

     0     0   12.60486    0   81    7.00000   12.60486  80.1%     -    0s
H    0     0                       8.0000000   12.60486  57.6%     -    0s
     0     0   12.25120    0   82    8.00000   12.25120  53.1%     -    0s
     0     0   12.14646    0   83    8.00000   12.14646  51.8%     -    0s
     0     0   12.09438    0   84    8.00000   12.09438  51.2%     -    0s
     0     0   12.08382    0   85    8.00000   12.08382  51.0%     -    0s
     0     0   12.08366    0   85    8.00000   12.08366  51.0%     -    0s
     0     2   12.08351    0   85    8.00000   12.08351  51.0%     -    0s

Cutting planes:
  Clique: 44
  Zero half: 1

Explored 141 nodes (7197 simplex iterations) in 0.70 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%