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

Optimize a model with 195 rows, 63 columns and 390 nonzeros
Presolve removed 48 rows and 0 columns
Presolve time: 0.00s
Presolved: 147 rows, 63 columns, 329 nonzeros
Variable types: 0 continuous, 63 integer (63 binary)
Found heuristic solution: objective 21.0000000

Root relaxation: objective 2.600000e+01, 94 iterations, 0.00 seconds

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

     0     0   26.00000    0   49   21.00000   26.00000  23.8%     -    0s
H    0     0                      25.0000000   26.00000  4.00%     -    0s
     0     0 infeasible    0        25.00000   25.99997  4.00%     -    0s

Cutting planes:
  Gomory: 1
  Zero half: 40

Explored 0 nodes (156 simplex iterations) in 0.01 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 2.500000000000e+01, best bound 2.500000000000e+01, gap 0.0%