Gurobi 5.0.1 (linux64) logging started Mon Nov 19 06:45:07 2012

Optimize a model with 1740 rows, 84 columns and 3480 nonzeros
Presolve removed 1212 rows and 0 columns
Presolve time: 0.05s
Presolved: 528 rows, 84 columns, 3361 nonzeros
Variable types: 0 continuous, 84 integer (84 binary)
Found heuristic solution: objective 6.0000000

Root relaxation: objective 1.299542e+01, 297 iterations, 0.01 seconds

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

     0     0   12.99542    0   82    6.00000   12.99542   117%     -    0s
H    0     0                       8.0000000   12.99542  62.4%     -    0s
     0     0   12.57814    0   82    8.00000   12.57814  57.2%     -    0s
     0     0   12.51100    0   83    8.00000   12.51100  56.4%     -    0s
     0     0   12.49006    0   83    8.00000   12.49006  56.1%     -    0s
H    0     0                      10.0000000   12.49006  24.9%     -    0s
     0     0   12.47541    0   83   10.00000   12.47541  24.8%     -    0s
     0     0   12.47063    0   83   10.00000   12.47063  24.7%     -    0s
     0     0   12.47038    0   83   10.00000   12.47038  24.7%     -    0s
     0     0   12.47004    0   83   10.00000   12.47004  24.7%     -    0s
     0     2   12.46731    0   83   10.00000   12.46731  24.7%     -    0s

Cutting planes:
  Clique: 31
  Zero half: 5

Explored 23 nodes (1761 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%