Gurobi 5.0.1 (linux64) logging started Tue Nov 20 12:32:14 2012

Optimize a model with 296 rows, 109 columns and 592 nonzeros
Presolve removed 66 rows and 4 columns
Presolve time: 0.00s
Presolved: 230 rows, 105 columns, 489 nonzeros
Variable types: 0 continuous, 105 integer (105 binary)
Found heuristic solution: objective 44.0000000

Root relaxation: objective 4.828571e+01, 155 iterations, 0.00 seconds

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

     0     0   48.28571    0   98   44.00000   48.28571  9.74%     -    0s
H    0     0                      45.0000000   48.28571  7.30%     -    0s
     0     0   47.62500    0  104   45.00000   47.62500  5.83%     -    0s
     0     0   47.14062    0  103   45.00000   47.14062  4.76%     -    0s
H    0     0                      46.0000000   47.14062  2.48%     -    0s
     0     0     cutoff    0        46.00000   46.99995  2.17%     -    0s

Cutting planes:
  Gomory: 1
  Zero half: 45

Explored 0 nodes (291 simplex iterations) in 0.02 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 4.600000000000e+01, best bound 4.600000000000e+01, gap 0.0%