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

Optimize a model with 220 rows, 65 columns and 440 nonzeros
Presolve removed 72 rows and 5 columns
Presolve time: 0.00s
Presolved: 148 rows, 60 columns, 326 nonzeros
Variable types: 0 continuous, 60 integer (60 binary)
Found heuristic solution: objective 20.0000000

Root relaxation: objective 2.733333e+01, 93 iterations, 0.00 seconds

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

     0     0   27.33333    0   52   20.00000   27.33333  36.7%     -    0s
H    0     0                      21.0000000   27.33333  30.2%     -    0s
H    0     0                      23.0000000   27.33333  18.8%     -    0s
     0     0   26.79000    0   59   23.00000   26.79000  16.5%     -    0s
     0     0   26.40984    0   59   23.00000   26.40984  14.8%     -    0s
H    0     0                      24.0000000   26.40984  10.0%     -    0s
     0     0   26.25641    0   59   24.00000   26.25641  9.40%     -    0s
     0     0   25.93310    0   60   24.00000   25.93310  8.05%     -    0s
     0     0   25.89333    0   57   24.00000   25.89333  7.89%     -    0s
     0     0   25.80469    0   60   24.00000   25.80469  7.52%     -    0s
     0     0   25.73626    0   59   24.00000   25.73626  7.23%     -    0s
     0     0   25.70408    0   59   24.00000   25.70408  7.10%     -    0s
     0     0   25.67826    0   59   24.00000   25.67826  6.99%     -    0s
     0     0   25.67500    0   59   24.00000   25.67500  6.98%     -    0s
     0     0   25.67500    0   58   24.00000   25.67500  6.98%     -    0s
     0     2   25.67500    0   58   24.00000   25.67500  6.98%     -    0s

Cutting planes:
  Zero half: 26

Explored 16 nodes (540 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%