Gurobi 5.0.1 (linux64) logging started Tue Nov 20 12:32:11 2012

Optimize a model with 252 rows, 104 columns and 504 nonzeros
Presolve removed 20 rows and 1 columns
Presolve time: 0.00s
Presolved: 232 rows, 103 columns, 475 nonzeros
Variable types: 0 continuous, 103 integer (103 binary)
Found heuristic solution: objective 43.0000000

Root relaxation: objective 4.925000e+01, 149 iterations, 0.00 seconds

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

     0     0   49.25000    0   89   43.00000   49.25000  14.5%     -    0s
     0     0   48.14286    0   96   43.00000   48.14286  12.0%     -    0s
H    0     0                      45.0000000   48.14286  6.98%     -    0s
H    0     0                      46.0000000   48.14286  4.66%     -    0s
     0     0   47.46154    0  101   46.00000   47.46154  3.18%     -    0s
     0     0     cutoff    0        46.00000   46.99995  2.17%     -    0s

Cutting planes:
  Zero half: 52

Explored 0 nodes (338 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%