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

Optimize a model with 319 rows, 79 columns and 638 nonzeros
Presolve removed 95 rows and 0 columns
Presolve time: 0.00s
Presolved: 224 rows, 79 columns, 517 nonzeros
Variable types: 0 continuous, 79 integer (79 binary)
Found heuristic solution: objective 24.0000000

Root relaxation: objective 3.050000e+01, 153 iterations, 0.00 seconds

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

     0     0   30.50000    0   55   24.00000   30.50000  27.1%     -    0s
     0     0   29.62963    0   76   24.00000   29.62963  23.5%     -    0s
     0     0   29.09524    0   73   24.00000   29.09524  21.2%     -    0s
     0     0   28.85714    0   77   24.00000   28.85714  20.2%     -    0s
     0     0   28.81053    0   78   24.00000   28.81053  20.0%     -    0s
     0     0   28.67869    0   77   24.00000   28.67869  19.5%     -    0s
     0     0   28.54466    0   79   24.00000   28.54466  18.9%     -    0s
H    0     0                      25.0000000   28.54466  14.2%     -    0s
     0     0   28.53143    0   79   25.00000   28.53143  14.1%     -    0s
     0     0   28.53143    0   79   25.00000   28.53143  14.1%     -    0s
H    0     0                      26.0000000   28.53143  9.74%     -    0s
     0     2   28.53143    0   79   26.00000   28.53143  9.74%     -    0s

Cutting planes:
  Gomory: 2
  Zero half: 31

Explored 30 nodes (1242 simplex iterations) in 0.07 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 2.600000000000e+01, best bound 2.600000000000e+01, gap 0.0%