Gurobi 5.0.1 (linux64) logging started Tue Nov 20 05:48:42 2012

Optimize a model with 216 rows, 67 columns and 432 nonzeros
Presolve removed 51 rows and 0 columns
Presolve time: 0.00s
Presolved: 165 rows, 67 columns, 368 nonzeros
Variable types: 0 continuous, 67 integer (67 binary)
Found heuristic solution: objective 22.0000000

Root relaxation: objective 2.750000e+01, 101 iterations, 0.00 seconds

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

     0     0   27.50000    0   51   22.00000   27.50000  25.0%     -    0s
     0     0   26.85906    0   66   22.00000   26.85906  22.1%     -    0s
     0     0   26.48889    0   65   22.00000   26.48889  20.4%     -    0s
     0     0   26.39394    0   67   22.00000   26.39394  20.0%     -    0s
     0     0   26.03448    0   64   22.00000   26.03448  18.3%     -    0s
H    0     0                      23.0000000   26.03448  13.2%     -    0s
     0     0   25.89157    0   66   23.00000   25.89157  12.6%     -    0s
     0     0   25.85022    0   66   23.00000   25.85022  12.4%     -    0s
     0     0   25.76923    0   65   23.00000   25.76923  12.0%     -    0s
H    0     0                      24.0000000   25.76923  7.37%     -    0s
     0     0   25.73404    0   67   24.00000   25.73404  7.23%     -    0s
     0     0   25.71753    0   65   24.00000   25.71753  7.16%     -    0s
     0     0   25.68932    0   67   24.00000   25.68932  7.04%     -    0s
     0     0   25.68932    0   66   24.00000   25.68932  7.04%     -    0s
     0     2   25.68932    0   66   24.00000   25.68932  7.04%     -    0s

Cutting planes:
  Gomory: 1
  Zero half: 31

Explored 19 nodes (692 simplex iterations) in 0.04 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 2.400000000000e+01, best bound 2.400000000000e+01, gap 0.0%