YES

Problem:
 rec[foldl_0][3](x6,Nil()) -> x6
 rec[foldl_0][3](x24,Cons(x40,x14)) -> rec[foldl_0][3](Cons(x40,x24),x14)
 main(x3) -> rec[foldl_0][3](Nil(),x3)

Proof:
 Matrix Interpretation Processor: dim=1
  
  interpretation:
   [main](x0) = 7x0 + 7,
   
   [Cons](x0, x1) = 4x0 + x1,
   
   [rec[foldl_0][3]](x0, x1) = x0 + 6x1 + 7,
   
   [Nil] = 0
  orientation:
   rec[foldl_0][3](x6,Nil()) = x6 + 7 >= x6 = x6
   
   rec[foldl_0][3](x24,Cons(x40,x14)) = 6x14 + x24 + 24x40 + 7 >= 6x14 + x24 + 4x40 + 7 = rec[foldl_0][3](Cons(x40,x24),x14)
   
   main(x3) = 7x3 + 7 >= 6x3 + 7 = rec[foldl_0][3](Nil(),x3)
  problem:
   rec[foldl_0][3](x24,Cons(x40,x14)) -> rec[foldl_0][3](Cons(x40,x24),x14)
   main(x3) -> rec[foldl_0][3](Nil(),x3)
  Matrix Interpretation Processor: dim=1
   
   interpretation:
    [main](x0) = x0 + 1,
    
    [Cons](x0, x1) = x0 + x1,
    
    [rec[foldl_0][3]](x0, x1) = x0 + x1,
    
    [Nil] = 0
   orientation:
    rec[foldl_0][3](x24,Cons(x40,x14)) = x14 + x24 + x40 >= x14 + x24 + x40 = rec[foldl_0][3](Cons(x40,x24),x14)
    
    main(x3) = x3 + 1 >= x3 = rec[foldl_0][3](Nil(),x3)
   problem:
    rec[foldl_0][3](x24,Cons(x40,x14)) -> rec[foldl_0][3](Cons(x40,x24),x14)
   Matrix Interpretation Processor: dim=1
    
    interpretation:
     [Cons](x0, x1) = x0 + x1 + 1,
     
     [rec[foldl_0][3]](x0, x1) = x0 + 2x1 + 7
    orientation:
     rec[foldl_0][3](x24,Cons(x40,x14)) = 2x14 + x24 + 2x40 + 9 >= 2x14 + x24 + x40 + 8 = rec[foldl_0][3](Cons(x40,x24),x14)
    problem:
     
    Qed