Gurobi 5.0.1 (linux64) logging started Tue Nov 20 05:48:40 2012

Optimize a model with 157 rows, 58 columns and 314 nonzeros
Presolve removed 50 rows and 7 columns
Presolve time: 0.00s
Presolved: 107 rows, 51 columns, 229 nonzeros
Variable types: 0 continuous, 51 integer (51 binary)
Found heuristic solution: objective 21.0000000

Root relaxation: objective 2.550000e+01, 70 iterations, 0.00 seconds

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

     0     0   25.50000    0   41   21.00000   25.50000  21.4%     -    0s
H    0     0                      22.0000000   25.50000  15.9%     -    0s
     0     0   24.58333    0   49   22.00000   24.58333  11.7%     -    0s
H    0     0                      23.0000000   24.58333  6.88%     -    0s
H    0     0                      24.0000000   24.58333  2.43%     -    0s

Cutting planes:
  Gomory: 1
  Zero half: 7

Explored 0 nodes (135 simplex iterations) in 0.00 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%