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

Strict Trs:
  { or(x, true()) -> true()
  , or(true(), y) -> true()
  , or(false(), false()) -> false()
  , mem(x, nil()) -> false()
  , mem(x, set(y)) -> =(x, y)
  , mem(x, union(y, z)) -> or(mem(x, y), mem(x, z)) }
Obligation:
  runtime complexity
Answer:
  YES(O(1),O(n^1))

We add the following weak dependency pairs:

Strict DPs:
  { or^#(x, true()) -> c_1()
  , or^#(true(), y) -> c_2()
  , or^#(false(), false()) -> c_3()
  , mem^#(x, nil()) -> c_4()
  , mem^#(x, set(y)) -> c_5(x, y)
  , mem^#(x, union(y, z)) -> c_6(or^#(mem(x, y), mem(x, z))) }

and mark the set of starting terms.

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

Strict DPs:
  { or^#(x, true()) -> c_1()
  , or^#(true(), y) -> c_2()
  , or^#(false(), false()) -> c_3()
  , mem^#(x, nil()) -> c_4()
  , mem^#(x, set(y)) -> c_5(x, y)
  , mem^#(x, union(y, z)) -> c_6(or^#(mem(x, y), mem(x, z))) }
Strict Trs:
  { or(x, true()) -> true()
  , or(true(), y) -> true()
  , or(false(), false()) -> false()
  , mem(x, nil()) -> false()
  , mem(x, set(y)) -> =(x, y)
  , mem(x, union(y, z)) -> or(mem(x, y), mem(x, z)) }
Obligation:
  runtime complexity
Answer:
  YES(O(1),O(n^1))

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

The following argument positions are usable:
  Uargs(or) = {1, 2}, Uargs(or^#) = {1, 2}, Uargs(c_6) = {1}

TcT has computed the following constructor-restricted matrix
interpretation.

     [or](x1, x2) = [1 0] x1 + [1 0] x2 + [2]
                    [0 0]      [0 0]      [1]
                                             
           [true] = [2]                      
                    [0]                      
                                             
          [false] = [1]                      
                    [1]                      
                                             
    [mem](x1, x2) = [1 1] x2 + [1]           
                    [0 0]      [1]           
                                             
            [nil] = [2]                      
                    [1]                      
                                             
        [set](x1) = [0]                      
                    [0]                      
                                             
      [=](x1, x2) = [0]                      
                    [0]                      
                                             
  [union](x1, x2) = [1 0] x1 + [1 0] x2 + [2]
                    [0 1]      [0 1]      [2]
                                             
   [or^#](x1, x2) = [1 0] x1 + [1 1] x2 + [0]
                    [0 0]      [0 0]      [0]
                                             
            [c_1] = [0]                      
                    [0]                      
                                             
            [c_2] = [0]                      
                    [0]                      
                                             
            [c_3] = [0]                      
                    [0]                      
                                             
  [mem^#](x1, x2) = [1 1] x1 + [2 1] x2 + [0]
                    [0 0]      [0 0]      [0]
                                             
            [c_4] = [0]                      
                    [0]                      
                                             
    [c_5](x1, x2) = [0]                      
                    [0]                      
                                             
        [c_6](x1) = [1 0] x1 + [0]           
                    [0 1]      [0]           

The order satisfies the following ordering constraints:

           [or(x, true())] =  [1 0] x + [4]                    
                              [0 0]     [1]                    
                           >  [2]                              
                              [0]                              
                           =  [true()]                         
                                                               
           [or(true(), y)] =  [1 0] y + [4]                    
                              [0 0]     [1]                    
                           >  [2]                              
                              [0]                              
                           =  [true()]                         
                                                               
    [or(false(), false())] =  [4]                              
                              [1]                              
                           >  [1]                              
                              [1]                              
                           =  [false()]                        
                                                               
           [mem(x, nil())] =  [4]                              
                              [1]                              
                           >  [1]                              
                              [1]                              
                           =  [false()]                        
                                                               
          [mem(x, set(y))] =  [1]                              
                              [1]                              
                           >  [0]                              
                              [0]                              
                           =  [=(x, y)]                        
                                                               
     [mem(x, union(y, z))] =  [1 1] y + [1 1] z + [5]          
                              [0 0]     [0 0]     [1]          
                           >  [1 1] y + [1 1] z + [4]          
                              [0 0]     [0 0]     [1]          
                           =  [or(mem(x, y), mem(x, z))]       
                                                               
         [or^#(x, true())] =  [1 0] x + [2]                    
                              [0 0]     [0]                    
                           >  [0]                              
                              [0]                              
                           =  [c_1()]                          
                                                               
         [or^#(true(), y)] =  [1 1] y + [2]                    
                              [0 0]     [0]                    
                           >  [0]                              
                              [0]                              
                           =  [c_2()]                          
                                                               
  [or^#(false(), false())] =  [3]                              
                              [0]                              
                           >  [0]                              
                              [0]                              
                           =  [c_3()]                          
                                                               
         [mem^#(x, nil())] =  [1 1] x + [5]                    
                              [0 0]     [0]                    
                           >  [0]                              
                              [0]                              
                           =  [c_4()]                          
                                                               
        [mem^#(x, set(y))] =  [1 1] x + [0]                    
                              [0 0]     [0]                    
                           >= [0]                              
                              [0]                              
                           =  [c_5(x, y)]                      
                                                               
   [mem^#(x, union(y, z))] =  [2 1] y + [1 1] x + [2 1] z + [6]
                              [0 0]     [0 0]     [0 0]     [0]
                           >  [1 1] y + [1 1] z + [3]          
                              [0 0]     [0 0]     [0]          
                           =  [c_6(or^#(mem(x, y), mem(x, z)))]
                                                               

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^1)).

Strict DPs: { mem^#(x, set(y)) -> c_5(x, y) }
Weak DPs:
  { or^#(x, true()) -> c_1()
  , or^#(true(), y) -> c_2()
  , or^#(false(), false()) -> c_3()
  , mem^#(x, nil()) -> c_4()
  , mem^#(x, union(y, z)) -> c_6(or^#(mem(x, y), mem(x, z))) }
Weak Trs:
  { or(x, true()) -> true()
  , or(true(), y) -> true()
  , or(false(), false()) -> false()
  , mem(x, nil()) -> false()
  , mem(x, set(y)) -> =(x, y)
  , mem(x, union(y, z)) -> or(mem(x, y), mem(x, z)) }
Obligation:
  runtime complexity
Answer:
  YES(O(1),O(n^1))

The following weak DPs constitute a sub-graph of the DG that is
closed under successors. The DPs are removed.

{ or^#(x, true()) -> c_1()
, or^#(true(), y) -> c_2()
, or^#(false(), false()) -> c_3()
, mem^#(x, nil()) -> c_4()
, mem^#(x, union(y, z)) -> c_6(or^#(mem(x, y), mem(x, z))) }

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

Strict DPs: { mem^#(x, set(y)) -> c_5(x, y) }
Weak Trs:
  { or(x, true()) -> true()
  , or(true(), y) -> true()
  , or(false(), false()) -> false()
  , mem(x, nil()) -> false()
  , mem(x, set(y)) -> =(x, y)
  , mem(x, union(y, z)) -> or(mem(x, y), mem(x, z)) }
Obligation:
  runtime complexity
Answer:
  YES(O(1),O(n^1))

No rule is usable, rules are removed from the input problem.

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

Strict DPs: { mem^#(x, set(y)) -> c_5(x, y) }
Obligation:
  runtime complexity
Answer:
  YES(O(1),O(n^1))

We use the processor 'matrix interpretation of dimension 1' to
orient following rules strictly.

DPs:
  { 1: mem^#(x, set(y)) -> c_5(x, y) }

Sub-proof:
----------
  The following argument positions are usable:
    none
  
  TcT has computed the following constructor-based matrix
  interpretation satisfying not(EDA).
  
          [set](x1) = [1]                  
                                           
    [mem^#](x1, x2) = [7] x1 + [1] x2 + [4]
                                           
      [c_5](x1, x2) = [1] x1 + [1]         
  
  The order satisfies the following ordering constraints:
  
    [mem^#(x, set(y))] = [7] x + [5]
                       > [1] x + [1]
                       = [c_5(x, y)]
                                    

The strictly oriented rules are moved into the weak component.

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

Weak DPs: { mem^#(x, set(y)) -> c_5(x, y) }
Obligation:
  runtime complexity
Answer:
  YES(O(1),O(1))

The following weak DPs constitute a sub-graph of the DG that is
closed under successors. The DPs are removed.

{ mem^#(x, set(y)) -> c_5(x, y) }

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

Rules: Empty
Obligation:
  runtime complexity
Answer:
  YES(O(1),O(1))

Empty rules are trivially bounded

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