We are left with following problem, upon which TcT provides the
certificate YES(O(1),O(n^2)).

Strict Trs:
  { a__f(X1, X2) -> f(X1, X2)
  , a__f(g(X), Y) -> a__f(mark(X), f(g(X), Y))
  , mark(g(X)) -> g(mark(X))
  , mark(f(X1, X2)) -> a__f(mark(X1), X2) }
Obligation:
  innermost runtime complexity
Answer:
  YES(O(1),O(n^2))

The weightgap principle applies (using the following nonconstant
growth matrix-interpretation)

The following argument positions are usable:
  Uargs(a__f) = {1}, Uargs(g) = {1}

TcT has computed the following matrix interpretation satisfying
not(EDA) and not(IDA(1)).

  [a__f](x1, x2) = [1] x1 + [1]
                               
         [g](x1) = [1] x1 + [0]
                               
      [mark](x1) = [0]         
                               
     [f](x1, x2) = [1] x1 + [0]

The order satisfies the following ordering constraints:

     [a__f(X1, X2)] =  [1] X1 + [1]               
                    >  [1] X1 + [0]               
                    =  [f(X1, X2)]                
                                                  
    [a__f(g(X), Y)] =  [1] X + [1]                
                    >= [1]                        
                    =  [a__f(mark(X), f(g(X), Y))]
                                                  
       [mark(g(X))] =  [0]                        
                    >= [0]                        
                    =  [g(mark(X))]               
                                                  
  [mark(f(X1, X2))] =  [0]                        
                    ?  [1]                        
                    =  [a__f(mark(X1), X2)]       
                                                  

Further, it can be verified that all rules not oriented are covered by the weightgap condition.

We are left with following problem, upon which TcT provides the
certificate YES(O(1),O(n^2)).

Strict Trs:
  { a__f(g(X), Y) -> a__f(mark(X), f(g(X), Y))
  , mark(g(X)) -> g(mark(X))
  , mark(f(X1, X2)) -> a__f(mark(X1), X2) }
Weak Trs: { a__f(X1, X2) -> f(X1, X2) }
Obligation:
  innermost runtime complexity
Answer:
  YES(O(1),O(n^2))

The weightgap principle applies (using the following nonconstant
growth matrix-interpretation)

The following argument positions are usable:
  Uargs(a__f) = {1}, Uargs(g) = {1}

TcT has computed the following matrix interpretation satisfying
not(EDA) and not(IDA(1)).

  [a__f](x1, x2) = [1] x1 + [4]
                               
         [g](x1) = [1] x1 + [4]
                               
      [mark](x1) = [1]         
                               
     [f](x1, x2) = [1] x1 + [0]

The order satisfies the following ordering constraints:

     [a__f(X1, X2)] = [1] X1 + [4]               
                    > [1] X1 + [0]               
                    = [f(X1, X2)]                
                                                 
    [a__f(g(X), Y)] = [1] X + [8]                
                    > [5]                        
                    = [a__f(mark(X), f(g(X), Y))]
                                                 
       [mark(g(X))] = [1]                        
                    ? [5]                        
                    = [g(mark(X))]               
                                                 
  [mark(f(X1, X2))] = [1]                        
                    ? [5]                        
                    = [a__f(mark(X1), X2)]       
                                                 

Further, it can be verified that all rules not oriented are covered by the weightgap condition.

We are left with following problem, upon which TcT provides the
certificate YES(O(1),O(n^2)).

Strict Trs:
  { mark(g(X)) -> g(mark(X))
  , mark(f(X1, X2)) -> a__f(mark(X1), X2) }
Weak Trs:
  { a__f(X1, X2) -> f(X1, X2)
  , a__f(g(X), Y) -> a__f(mark(X), f(g(X), Y)) }
Obligation:
  innermost runtime complexity
Answer:
  YES(O(1),O(n^2))

We use the processor 'matrix interpretation of dimension 2' to
orient following rules strictly.

Trs: { mark(g(X)) -> g(mark(X)) }

The induced complexity on above rules (modulo remaining rules) is
YES(?,O(n^2)) . These rules are moved into the corresponding weak
component(s).

Sub-proof:
----------
  The following argument positions are usable:
    Uargs(a__f) = {1}, Uargs(g) = {1}
  
  TcT has computed the following constructor-based matrix
  interpretation satisfying not(EDA).
  
    [a__f](x1, x2) = [1 1] x1 + [4]
                     [0 1]      [4]
                                   
           [g](x1) = [1 1] x1 + [5]
                     [0 1]      [4]
                                   
        [mark](x1) = [1 1] x1 + [2]
                     [0 1]      [3]
                                   
       [f](x1, x2) = [1 1] x1 + [3]
                     [0 1]      [4]
  
  The order satisfies the following ordering constraints:
  
       [a__f(X1, X2)] =  [1 1] X1 + [4]             
                         [0 1]      [4]             
                      >  [1 1] X1 + [3]             
                         [0 1]      [4]             
                      =  [f(X1, X2)]                
                                                    
      [a__f(g(X), Y)] =  [1 2] X + [13]             
                         [0 1]     [8]              
                      >  [1 2] X + [9]              
                         [0 1]     [7]              
                      =  [a__f(mark(X), f(g(X), Y))]
                                                    
         [mark(g(X))] =  [1 2] X + [11]             
                         [0 1]     [7]              
                      >  [1 2] X + [10]             
                         [0 1]     [7]              
                      =  [g(mark(X))]               
                                                    
    [mark(f(X1, X2))] =  [1 2] X1 + [9]             
                         [0 1]      [7]             
                      >= [1 2] X1 + [9]             
                         [0 1]      [7]             
                      =  [a__f(mark(X1), X2)]       
                                                    

We return to the main proof.

We are left with following problem, upon which TcT provides the
certificate YES(O(1),O(n^2)).

Strict Trs: { mark(f(X1, X2)) -> a__f(mark(X1), X2) }
Weak Trs:
  { a__f(X1, X2) -> f(X1, X2)
  , a__f(g(X), Y) -> a__f(mark(X), f(g(X), Y))
  , mark(g(X)) -> g(mark(X)) }
Obligation:
  innermost runtime complexity
Answer:
  YES(O(1),O(n^2))

We use the processor 'matrix interpretation of dimension 2' to
orient following rules strictly.

Trs: { mark(f(X1, X2)) -> a__f(mark(X1), X2) }

The induced complexity on above rules (modulo remaining rules) is
YES(?,O(n^2)) . These rules are moved into the corresponding weak
component(s).

Sub-proof:
----------
  The following argument positions are usable:
    Uargs(a__f) = {1}, Uargs(g) = {1}
  
  TcT has computed the following constructor-based matrix
  interpretation satisfying not(EDA).
  
    [a__f](x1, x2) = [1 4] x1 + [0]
                     [0 1]      [1]
                                   
           [g](x1) = [1 4] x1 + [0]
                     [0 1]      [0]
                                   
        [mark](x1) = [1 4] x1 + [0]
                     [0 1]      [0]
                                   
       [f](x1, x2) = [1 4] x1 + [0]
                     [0 1]      [1]
  
  The order satisfies the following ordering constraints:
  
       [a__f(X1, X2)] =  [1 4] X1 + [0]             
                         [0 1]      [1]             
                      >= [1 4] X1 + [0]             
                         [0 1]      [1]             
                      =  [f(X1, X2)]                
                                                    
      [a__f(g(X), Y)] =  [1 8] X + [0]              
                         [0 1]     [1]              
                      >= [1 8] X + [0]              
                         [0 1]     [1]              
                      =  [a__f(mark(X), f(g(X), Y))]
                                                    
         [mark(g(X))] =  [1 8] X + [0]              
                         [0 1]     [0]              
                      >= [1 8] X + [0]              
                         [0 1]     [0]              
                      =  [g(mark(X))]               
                                                    
    [mark(f(X1, X2))] =  [1 8] X1 + [4]             
                         [0 1]      [1]             
                      >  [1 8] X1 + [0]             
                         [0 1]      [1]             
                      =  [a__f(mark(X1), X2)]       
                                                    

We return to the main proof.

We are left with following problem, upon which TcT provides the
certificate YES(O(1),O(1)).

Weak Trs:
  { a__f(X1, X2) -> f(X1, X2)
  , a__f(g(X), Y) -> a__f(mark(X), f(g(X), Y))
  , mark(g(X)) -> g(mark(X))
  , mark(f(X1, X2)) -> a__f(mark(X1), X2) }
Obligation:
  innermost runtime complexity
Answer:
  YES(O(1),O(1))

Empty rules are trivially bounded

Hurray, we answered YES(O(1),O(n^2))