Gurobi 5.0.1 (linux64) logging started Mon Nov 19 06:45:44 2012

Optimize a model with 1930 rows, 89 columns and 3860 nonzeros
Presolve removed 1366 rows and 0 columns
Presolve time: 0.06s
Presolved: 564 rows, 89 columns, 3604 nonzeros
Variable types: 0 continuous, 89 integer (89 binary)
Found heuristic solution: objective 6.0000000

Root relaxation: objective 1.339610e+01, 343 iterations, 0.01 seconds

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

     0     0   13.39610    0   88    6.00000   13.39610   123%     -    0s
H    0     0                       7.0000000   13.39610  91.4%     -    0s
H    0     0                       8.0000000   13.39610  67.5%     -    0s
     0     0   13.10283    0   88    8.00000   13.10283  63.8%     -    0s
     0     0   13.03081    0   88    8.00000   13.03081  62.9%     -    0s
     0     0   13.01863    0   88    8.00000   13.01863  62.7%     -    0s
     0     0   12.99773    0   89    8.00000   12.99773  62.5%     -    0s
     0     0   12.99360    0   89    8.00000   12.99360  62.4%     -    0s
     0     0   12.96958    0   89    8.00000   12.96958  62.1%     -    0s
     0     0   12.94751    0   89    8.00000   12.94751  61.8%     -    0s
     0     0   12.94514    0   89    8.00000   12.94514  61.8%     -    0s
     0     2   12.94456    0   89    8.00000   12.94456  61.8%     -    0s
H   58    11                      10.0000000   12.61558  26.2%  49.6    0s

Cutting planes:
  Clique: 41
  Zero half: 6

Explored 72 nodes (4502 simplex iterations) in 0.90 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 1.000000000000e+01, best bound 1.000000000000e+01, gap 0.0%