Gurobi 5.0.1 (linux64) logging started Mon Nov 19 06:45:00 2012

Optimize a model with 1710 rows, 84 columns and 3420 nonzeros
Presolve removed 1196 rows and 0 columns
Presolve time: 0.04s
Presolved: 514 rows, 84 columns, 3315 nonzeros
Variable types: 0 continuous, 84 integer (84 binary)
Found heuristic solution: objective 6.0000000

Root relaxation: objective 1.338380e+01, 256 iterations, 0.01 seconds

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

     0     0   13.38380    0   77    6.00000   13.38380   123%     -    0s
H    0     0                       7.0000000   13.38380  91.2%     -    0s
H    0     0                       8.0000000   13.38380  67.3%     -    0s
     0     0   12.85669    0   81    8.00000   12.85669  60.7%     -    0s
H    0     0                       9.0000000   12.85669  42.9%     -    0s
H    0     0                      10.0000000   12.85669  28.6%     -    0s
     0     0   12.82870    0   81   10.00000   12.82870  28.3%     -    0s
     0     0   12.76919    0   80   10.00000   12.76919  27.7%     -    0s
     0     0   12.73470    0   84   10.00000   12.73470  27.3%     -    0s
     0     0   12.72015    0   84   10.00000   12.72015  27.2%     -    0s
     0     0   12.71238    0   84   10.00000   12.71238  27.1%     -    0s
     0     0   12.71238    0   84   10.00000   12.71238  27.1%     -    0s
     0     2   12.71162    0   84   10.00000   12.71162  27.1%     -    0s

Cutting planes:
  Clique: 51

Explored 27 nodes (2186 simplex iterations) in 0.56 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%