Gurobi 5.0.1 (linux64) logging started Mon Nov 19 06:45:53 2012

Optimize a model with 1968 rows, 90 columns and 3936 nonzeros
Presolve removed 1403 rows and 0 columns
Presolve time: 0.05s
Presolved: 565 rows, 90 columns, 3645 nonzeros
Variable types: 0 continuous, 90 integer (90 binary)
Found heuristic solution: objective 7.0000000

Root relaxation: objective 1.342842e+01, 330 iterations, 0.01 seconds

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

     0     0   13.42842    0   82    7.00000   13.42842  91.8%     -    0s
H    0     0                       9.0000000   13.42842  49.2%     -    0s
     0     0   13.20244    0   90    9.00000   13.20244  46.7%     -    0s
     0     0   13.16116    0   90    9.00000   13.16116  46.2%     -    0s
     0     0   13.13555    0   88    9.00000   13.13555  46.0%     -    0s
     0     0   13.13397    0   89    9.00000   13.13397  45.9%     -    0s
     0     0   13.13327    0   89    9.00000   13.13327  45.9%     -    0s
     0     0   13.13102    0   90    9.00000   13.13102  45.9%     -    0s
     0     0   13.12854    0   89    9.00000   13.12854  45.9%     -    0s
     0     0   13.12772    0   89    9.00000   13.12772  45.9%     -    0s
     0     0   13.12763    0   89    9.00000   13.12763  45.9%     -    0s
     0     2   13.12659    0   89    9.00000   13.12659  45.9%     -    0s

Cutting planes:
  Gomory: 1
  Clique: 44
  Zero half: 4

Explored 93 nodes (6388 simplex iterations) in 1.03 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 9.000000000000e+00, best bound 9.000000000000e+00, gap 0.0%