Gurobi 5.0.1 (linux64) logging started Tue Nov 20 05:48:41 2012

Optimize a model with 212 rows, 64 columns and 424 nonzeros
Presolve removed 86 rows and 6 columns
Presolve time: 0.00s
Presolved: 126 rows, 58 columns, 302 nonzeros
Variable types: 0 continuous, 58 integer (58 binary)
Found heuristic solution: objective 21.0000000

Root relaxation: objective 2.575000e+01, 83 iterations, 0.00 seconds

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

     0     0   25.75000    0   49   21.00000   25.75000  22.6%     -    0s
H    0     0                      22.0000000   25.75000  17.0%     -    0s
     0     0   25.00000    0   55   22.00000   25.00000  13.6%     -    0s
     0     0   24.92500    0   58   22.00000   24.92500  13.3%     -    0s
H    0     0                      23.0000000   24.92500  8.37%     -    0s
     0     0   24.65217    0   56   23.00000   24.65217  7.18%     -    0s
     0     0   24.57143    0   57   23.00000   24.57143  6.83%     -    0s
     0     0   24.51471    0   56   23.00000   24.51471  6.59%     -    0s
     0     0   24.46429    0   56   23.00000   24.46429  6.37%     -    0s
     0     0   24.44388    0   57   23.00000   24.44388  6.28%     -    0s
     0     0   24.41156    0   57   23.00000   24.41156  6.14%     -    0s
     0     0   24.38559    0   57   23.00000   24.38559  6.02%     -    0s
     0     0   24.37631    0   57   23.00000   24.37631  5.98%     -    0s
     0     0   24.37631    0   57   23.00000   24.37631  5.98%     -    0s
     0     2   24.37631    0   57   23.00000   24.37631  5.98%     -    0s

Cutting planes:
  Clique: 1
  Zero half: 31

Explored 13 nodes (407 simplex iterations) in 0.03 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 2.300000000000e+01, best bound 2.300000000000e+01, gap 0.0%