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

Optimize a model with 307 rows, 109 columns and 614 nonzeros
Presolve removed 90 rows and 13 columns
Presolve time: 0.00s
Presolved: 217 rows, 96 columns, 452 nonzeros
Variable types: 0 continuous, 96 integer (96 binary)
Found heuristic solution: objective 41.0000000

Root relaxation: objective 4.850000e+01, 111 iterations, 0.00 seconds

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

     0     0   48.50000    0   81   41.00000   48.50000  18.3%     -    0s
     0     0   47.00000    0   76   41.00000   47.00000  14.6%     -    0s
     0     0   46.61765    0   95   41.00000   46.61765  13.7%     -    0s
H    0     0                      44.0000000   46.61765  5.95%     -    0s
     0     0   46.12500    0   94   44.00000   46.12500  4.83%     -    0s
     0     0   45.80000    0   92   44.00000   45.80000  4.09%     -    0s
     0     0   45.75000    0   90   44.00000   45.75000  3.98%     -    0s
     0     0   45.75000    0   90   44.00000   45.75000  3.98%     -    0s
     0     0   45.75000    0   84   44.00000   45.75000  3.98%     -    0s
     0     2   45.75000    0   84   44.00000   45.75000  3.98%     -    0s

Cutting planes:
  Gomory: 2
  Zero half: 26

Explored 19 nodes (736 simplex iterations) in 0.03 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 4.400000000000e+01, best bound 4.400000000000e+01, gap 0.0%