Gurobi 5.0.1 (linux64) logging started Tue Nov 20 12:32:08 2012

Optimize a model with 216 rows, 96 columns and 432 nonzeros
Presolve removed 67 rows and 20 columns
Presolve time: 0.00s
Presolved: 149 rows, 76 columns, 307 nonzeros
Variable types: 0 continuous, 76 integer (76 binary)
Found heuristic solution: objective 40.0000000

Root relaxation: objective 4.666667e+01, 108 iterations, 0.00 seconds

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

     0     0   46.66667    0   59   40.00000   46.66667  16.7%     -    0s
H    0     0                      45.0000000   46.66667  3.70%     -    0s
     0     0   46.00000    0   50   45.00000   46.00000  2.22%     -    0s
H    0     0                      46.0000000   46.00000   0.0%     -    0s

Cutting planes:
  Gomory: 1
  Zero half: 3

Explored 0 nodes (126 simplex iterations) in 0.01 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%