Certification Problem

Input (TPDB TRS_Standard/GTSSK07/cade15)

The rewrite relation of the following TRS is considered.

Property / Task

Answer / Result

Proof (by AProVE @ termCOMP 2023)

1 Switch to Innermost Termination

The TRS is overlay and locally confluent:

Hence, it suffices to show innermost termination in the following.

1.1 Dependency Pair Transformation

1.1.1 Dependency Graph Processor

The dependency pairs are split into 5 components.

• The 1^st component contains the pair

  cond1#(true,n,l)	→	st#(s(n),l)	(25)
  st#(n,l)	→	cond1#(member(n,l),n,l)	(23)
  cond1#(false,n,l)	→	cond2#(gt(n,max(l)),n,l)	(26)
  cond2#(false,n,l)	→	st#(s(n),l)	(29)

  1.1.1.1 Usable Rules Processor

  We restrict the rewrite rules to the following usable rules of the DP problem.

  max(nil)	→	0	(18)
  max(cons(u,l))	→	if(gt(u,max(l)),u,max(l))	(19)
  gt(0,v)	→	false	(15)
  gt(s(u),0)	→	true	(16)
  gt(s(u),s(v))	→	gt(u,v)	(17)
  if(true,u,v)	→	u	(20)
  if(false,u,v)	→	v	(21)
  member(n,nil)	→	false	(7)
  member(n,cons(m,l))	→	or(equal(n,m),member(n,l))	(8)
  equal(0,0)	→	true	(11)
  equal(s(x),0)	→	false	(12)
  equal(0,s(y))	→	false	(13)
  equal(s(x),s(y))	→	equal(x,y)	(14)
  or(x,true)	→	true	(9)
  or(x,false)	→	x	(10)

  1.1.1.1.1 Innermost Lhss Removal Processor

  We restrict the innermost strategy to the following left hand sides.

  member(x0,nil)

  member(x0,cons(x1,x2))

  or(x0,true)

  or(x0,false)

  equal(0,0)

  equal(s(x0),0)

  equal(0,s(x0))

  equal(s(x0),s(x1))

  gt(0,x0)

  gt(s(x0),0)

  gt(s(x0),s(x1))

  max(nil)

  max(cons(x0,x1))

  if(true,x0,x1)

  if(false,x0,x1)

  1.1.1.1.1.1 Reduction Pair Processor

  We apply the generic reduction pair processor using the linear polynomial interpretation over the naturals

  [c]	=	-2
  [st#(x1, x2)]	=	-1 · x1 + 1 · x2 + -1
  [cond1#(x1, x2, x3)]	=	-1 · x1 + -1 · x2 + 1 · x3 + -1
  [cond2#(x1, x2, x3)]	=	-1 · x1 + -1 · x2 + 1 · x3 + -1
  [true]	=	0
  [s(x1)]	=	1 · x1 + 1
  [member(x1, x2)]	=	0
  [false]	=	0
  [gt(x1, x2)]	=	0
  [max(x1)]	=	0
  [nil]	=	0
  [0]	=	0
  [cons(x1, x2)]	=	1 · x1 + 1 · x2
  [if(x1, x2, x3)]	=	0
  [or(x1, x2)]	=	0
  [equal(x1, x2)]	=	0

  The pair(s)

  cond1#(true,n,l)	→	st#(s(n),l)	(25)
  cond2#(false,n,l)	→	st#(s(n),l)	(29)

  are strictly oriented and the pair(s)

  cond1#(true,n,l)	→	st#(s(n),l)	(25)
  cond2#(false,n,l)	→	st#(s(n),l)	(29)

  are bounded w.r.t. the constant c.

  The following constraints are generated for the pairs.

  • (cond1^#(true,x45,x43)≥c⟹cond1^#(true,x45,cons(x44,x43))≥c)
  • cond1^#(true,0,cons(0,x43))≥c
  • (cond1^#(true,x53,cons(x52,x43))≥c⟹cond1^#(true,s(x53),cons(s(x52),x43))≥c)
  • cond2^#(false,0,x37)≥c
  • cond2^#(false,s(0),cons(s(x87),x74))≥c
  • (cond2^#(false,s(x90),cons(s(x89),x74))≥c⟹cond2^#(false,s(s(x90)),cons(s(s(x89)),x74))≥c)
  • (cond2^#(false,s(x72),x74)≥c⟹cond2^#(false,s(x72),cons(0,x74))≥c)
  • (cond2^#(false,s(x72),cons(x95,x74))≥c⟹cond2^#(false,s(x72),cons(s(x95),x74))≥c)
  • (cond1^#(true,x45,x43) > st^#(s(x45),x43)⟹cond1^#(true,x45,cons(x44,x43)) > st^#(s(x45),cons(x44,x43)))
  • cond1^#(true,0,cons(0,x43)) > st^#(s(0),cons(0,x43))
  • (cond1^#(true,x53,cons(x52,x43)) > st^#(s(x53),cons(x52,x43))⟹cond1^#(true,s(x53),cons(s(x52),x43)) > st^#(s(s(x53)),cons(s(x52),x43)))
  • st^#(s(x10),x11)≥cond1^#(member(s(x10),x11),s(x10),x11)
  • st^#(s(x18),x19)≥cond1^#(member(s(x18),x19),s(x18),x19)
  • cond1^#(false,x55,nil)≥cond2^#(gt(x55,max(nil)),x55,nil)
  • (cond1^#(false,s(x63),x56)≥cond2^#(gt(s(x63),max(x56)),s(x63),x56)⟹cond1^#(false,s(x63),cons(0,x56))≥cond2^#(gt(s(x63),max(cons(0,x56))),s(x63),cons(0,x56)))
  • (cond1^#(false,0,x56)≥cond2^#(gt(0,max(x56)),0,x56)⟹cond1^#(false,0,cons(s(x64),x56))≥cond2^#(gt(0,max(cons(s(x64),x56))),0,cons(s(x64),x56)))
  • (cond1^#(false,s(x66),x56)≥cond2^#(gt(s(x66),max(x56)),s(x66),x56)⟹cond1^#(false,s(x66),cons(s(x65),x56))≥cond2^#(gt(s(x66),max(cons(s(x65),x56))),s(x66),cons(s(x65),x56)))
  • cond2^#(false,0,x37) > st^#(s(0),x37)
  • cond2^#(false,s(0),cons(s(x87),x74)) > st^#(s(s(0)),cons(s(x87),x74))
  • (cond2^#(false,s(x90),cons(s(x89),x74)) > st^#(s(s(x90)),cons(s(x89),x74))⟹cond2^#(false,s(s(x90)),cons(s(s(x89)),x74)) > st^#(s(s(s(x90))),cons(s(s(x89)),x74)))
  • (cond2^#(false,s(x72),x74) > st^#(s(s(x72)),x74)⟹cond2^#(false,s(x72),cons(0,x74)) > st^#(s(s(x72)),cons(0,x74)))
  • (cond2^#(false,s(x72),cons(x95,x74)) > st^#(s(s(x72)),cons(x95,x74))⟹cond2^#(false,s(x72),cons(s(x95),x74)) > st^#(s(s(x72)),cons(s(x95),x74)))

  The details are shown below:

  • For the chain we build the initial constraint

    (cond1^#(member(x2,x3),x2,x3)→^*cond1^#(true,x4,x5)⟹cond1^#(true,x4,x5)≥c)

    which is simplified as follows.

    • Applying Rule "Same Constructor" results in
      (member(x2,x3)→^*true⟹x2→^*x4⟹x3→^*x5⟹cond1^#(true,x4,x5)≥c)
    • Applying Rule "Variable in Equation" allows to substitute x4 by x2 which results in
      (member(x2,x3)→^*true⟹x3→^*x5⟹cond1^#(true,x2,x5)≥c)
    • Applying Rule "Variable in Equation" allows to substitute x5 by x3 which results in
      (member(x2,x3)→^*true⟹cond1^#(true,x2,x3)≥c)
    • Applying Rule "Induction" on member(x2,x3)→^*true results in the following 2 new constraints.
      1. (false→^*true⟹cond1^#(true,x42,nil)≥c)
         • Applying Rule "Different Constructors" allows to drop this constraint.
      2. (or(equal(x45,x44),member(x45,x43))→^*true⟹(member(x45,x43)→^*true⟹cond1^#(true,x45,x43)≥c)⟹cond1^#(true,x45,cons(x44,x43))≥c)
         • Applying Rule "Introduce fresh variable" results in
           ((member(x45,x43)→^*true⟹cond1^#(true,x45,x43)≥c)⟹member(x45,x43)→^*x47⟹or(equal(x45,x44),x47)→^*true⟹cond1^#(true,x45,cons(x44,x43))≥c)
         • Applying Rule "Introduce fresh variable" results in
           (equal(x45,x44)→^*x46⟹member(x45,x43)→^*x47⟹or(x46,x47)→^*true⟹(member(x45,x43)→^*true⟹cond1^#(true,x45,x43)≥c)⟹cond1^#(true,x45,cons(x44,x43))≥c)
         • Applying Rule "Induction" on or(x46,x47)→^*true results in the following 2 new constraints.
           1. (true→^*true⟹equal(x45,x44)→^*x48⟹member(x45,x43)→^*true⟹(member(x45,x43)→^*true⟹cond1^#(true,x45,x43)≥c)⟹cond1^#(true,x45,cons(x44,x43))≥c)
              • Applying Rule "Same Constructor" results in
                (equal(x45,x44)→^*x48⟹member(x45,x43)→^*true⟹(member(x45,x43)→^*true⟹cond1^#(true,x45,x43)≥c)⟹cond1^#(true,x45,cons(x44,x43))≥c)
              • Applying Rule "Simplify Conditions" results in
                (equal(x45,x44)→^*x48⟹cond1^#(true,x45,x43)≥c⟹cond1^#(true,x45,cons(x44,x43))≥c)
              • Applying Rule "Delete Conditions" results in
                (cond1^#(true,x45,x43)≥c⟹cond1^#(true,x45,cons(x44,x43))≥c)

              • This constraint is kept as final constraint.

           2. (x49→^*true⟹equal(x45,x44)→^*x49⟹member(x45,x43)→^*false⟹(member(x45,x43)→^*true⟹cond1^#(true,x45,x43)≥c)⟹cond1^#(true,x45,cons(x44,x43))≥c)
              • Applying Rule "Variable in Equation" allows to substitute x49 by true which results in
                (equal(x45,x44)→^*true⟹member(x45,x43)→^*false⟹(member(x45,x43)→^*true⟹cond1^#(true,x45,x43)≥c)⟹cond1^#(true,x45,cons(x44,x43))≥c)
              • Applying Rule "Delete Conditions" results in
                (equal(x45,x44)→^*true⟹member(x45,x43)→^*false⟹cond1^#(true,x45,cons(x44,x43))≥c)
              • Applying Rule "Delete Conditions" results in
                (equal(x45,x44)→^*true⟹cond1^#(true,x45,cons(x44,x43))≥c)
              • Applying Rule "Induction" on equal(x45,x44)→^*true results in the following 4 new constraints.
                1. (true→^*true⟹cond1^#(true,0,cons(0,x43))≥c)
                   • Applying Rule "Same Constructor" results in
                     cond1^#(true,0,cons(0,x43))≥c

                   • This constraint is kept as final constraint.

                2. (false→^*true⟹cond1^#(true,s(x50),cons(0,x43))≥c)
                   • Applying Rule "Different Constructors" allows to drop this constraint.
                3. (false→^*true⟹cond1^#(true,0,cons(s(x51),x43))≥c)
                   • Applying Rule "Different Constructors" allows to drop this constraint.
                4. (equal(x53,x52)→^*true⟹∀x54 . (equal(x53,x52)→^*true⟹cond1^#(true,x53,cons(x52,x54))≥c)⟹cond1^#(true,s(x53),cons(s(x52),x43))≥c)
                   • Applying Rule "Simplify Conditions" results in
                     (cond1^#(true,x53,cons(x52,x43))≥c⟹cond1^#(true,s(x53),cons(s(x52),x43))≥c)

                   • This constraint is kept as final constraint.

  • For the chain we build the initial constraint

    (cond2^#(gt(x36,max(x37)),x36,x37)→^*cond2^#(false,x38,x39)⟹cond2^#(false,x38,x39)≥c)

    which is simplified as follows.

    • Applying Rule "Same Constructor" results in
      (gt(x36,max(x37))→^*false⟹x36→^*x38⟹x37→^*x39⟹cond2^#(false,x38,x39)≥c)
    • Applying Rule "Variable in Equation" allows to substitute x38 by x36 which results in
      (gt(x36,max(x37))→^*false⟹x37→^*x39⟹cond2^#(false,x36,x39)≥c)
    • Applying Rule "Variable in Equation" allows to substitute x39 by x37 which results in
      (gt(x36,max(x37))→^*false⟹cond2^#(false,x36,x37)≥c)
    • Applying Rule "Introduce fresh variable" results in
      (max(x37)→^*x68⟹gt(x36,x68)→^*false⟹cond2^#(false,x36,x37)≥c)
    • Applying Rule "Induction" on gt(x36,x68)→^*false results in the following 3 new constraints.
      1. (false→^*false⟹max(x37)→^*x69⟹cond2^#(false,0,x37)≥c)
         • Applying Rule "Same Constructor" results in
           (max(x37)→^*x69⟹cond2^#(false,0,x37)≥c)
         • Applying Rule "Delete Conditions" results in
           cond2^#(false,0,x37)≥c

         • This constraint is kept as final constraint.

      2. (true→^*false⟹cond2^#(false,s(x70),x37)≥c)
         • Applying Rule "Different Constructors" allows to drop this constraint.
      3. (gt(x72,x71)→^*false⟹max(x37)→^*s(x71)⟹∀x73 . (gt(x72,x71)→^*false⟹max(x73)→^*x71⟹cond2^#(false,x72,x73)≥c)⟹cond2^#(false,s(x72),x37)≥c)
         • Applying Rule "Induction" on max(x37)→^*s(x71) results in the following 2 new constraints.
           1. (0→^*s(x71)⟹cond2^#(false,s(x72),nil)≥c)
              • Applying Rule "Different Constructors" allows to drop this constraint.
           2. (if(gt(x75,max(x74)),x75,max(x74))→^*s(x71)⟹gt(x72,x71)→^*false⟹∀x73 . (gt(x72,x71)→^*false⟹max(x73)→^*x71⟹cond2^#(false,x72,x73)≥c)⟹∀x76 . ∀x77 . ∀x78 . (max(x74)→^*s(x76)⟹gt(x77,x76)→^*false⟹∀x78 . (gt(x77,x76)→^*false⟹max(x78)→^*x76⟹cond2^#(false,x77,x78)≥c)⟹cond2^#(false,s(x77),x74)≥c)⟹cond2^#(false,s(x72),cons(x75,x74))≥c)
              • Applying Rule "Introduce fresh variable" results in
                (gt(x72,x71)→^*false⟹∀x73 . (gt(x72,x71)→^*false⟹max(x73)→^*x71⟹cond2^#(false,x72,x73)≥c)⟹∀x76 . ∀x77 . ∀x78 . (max(x74)→^*s(x76)⟹gt(x77,x76)→^*false⟹∀x78 . (gt(x77,x76)→^*false⟹max(x78)→^*x76⟹cond2^#(false,x77,x78)≥c)⟹cond2^#(false,s(x77),x74)≥c)⟹max(x74)→^*x80⟹if(gt(x75,max(x74)),x75,x80)→^*s(x71)⟹cond2^#(false,s(x72),cons(x75,x74))≥c)
              • Applying Rule "Introduce fresh variable" results in
                (gt(x75,max(x74))→^*x79⟹max(x74)→^*x80⟹if(x79,x75,x80)→^*s(x71)⟹gt(x72,x71)→^*false⟹∀x73 . (gt(x72,x71)→^*false⟹max(x73)→^*x71⟹cond2^#(false,x72,x73)≥c)⟹∀x76 . ∀x77 . ∀x78 . (max(x74)→^*s(x76)⟹gt(x77,x76)→^*false⟹∀x78 . (gt(x77,x76)→^*false⟹max(x78)→^*x76⟹cond2^#(false,x77,x78)≥c)⟹cond2^#(false,s(x77),x74)≥c)⟹cond2^#(false,s(x72),cons(x75,x74))≥c)
              • Applying Rule "Introduce fresh variable" results in
                (max(x74)→^*x81⟹gt(x75,x81)→^*x79⟹max(x74)→^*x80⟹if(x79,x75,x80)→^*s(x71)⟹gt(x72,x71)→^*false⟹∀x73 . (gt(x72,x71)→^*false⟹max(x73)→^*x71⟹cond2^#(false,x72,x73)≥c)⟹∀x76 . ∀x77 . ∀x78 . (max(x74)→^*s(x76)⟹gt(x77,x76)→^*false⟹∀x78 . (gt(x77,x76)→^*false⟹max(x78)→^*x76⟹cond2^#(false,x77,x78)≥c)⟹cond2^#(false,s(x77),x74)≥c)⟹cond2^#(false,s(x72),cons(x75,x74))≥c)
              • Applying Rule "Delete Conditions" results in
                (gt(x75,x81)→^*x79⟹max(x74)→^*x80⟹if(x79,x75,x80)→^*s(x71)⟹gt(x72,x71)→^*false⟹∀x73 . (gt(x72,x71)→^*false⟹max(x73)→^*x71⟹cond2^#(false,x72,x73)≥c)⟹∀x76 . ∀x77 . ∀x78 . (max(x74)→^*s(x76)⟹gt(x77,x76)→^*false⟹∀x78 . (gt(x77,x76)→^*false⟹max(x78)→^*x76⟹cond2^#(false,x77,x78)≥c)⟹cond2^#(false,s(x77),x74)≥c)⟹cond2^#(false,s(x72),cons(x75,x74))≥c)
              • Applying Rule "Induction" on if(x79,x75,x80)→^*s(x71) results in the following 2 new constraints.
                1. (x83→^*s(x71)⟹gt(x83,x81)→^*true⟹max(x74)→^*x82⟹gt(x72,x71)→^*false⟹∀x73 . (gt(x72,x71)→^*false⟹max(x73)→^*x71⟹cond2^#(false,x72,x73)≥c)⟹∀x76 . ∀x77 . ∀x78 . (max(x74)→^*s(x76)⟹gt(x77,x76)→^*false⟹∀x78 . (gt(x77,x76)→^*false⟹max(x78)→^*x76⟹cond2^#(false,x77,x78)≥c)⟹cond2^#(false,s(x77),x74)≥c)⟹cond2^#(false,s(x72),cons(x83,x74))≥c)
                   • Applying Rule "Delete Conditions" results in
                     (x83→^*s(x71)⟹gt(x83,x81)→^*true⟹gt(x72,x71)→^*false⟹∀x73 . (gt(x72,x71)→^*false⟹max(x73)→^*x71⟹cond2^#(false,x72,x73)≥c)⟹∀x76 . ∀x77 . ∀x78 . (max(x74)→^*s(x76)⟹gt(x77,x76)→^*false⟹∀x78 . (gt(x77,x76)→^*false⟹max(x78)→^*x76⟹cond2^#(false,x77,x78)≥c)⟹cond2^#(false,s(x77),x74)≥c)⟹cond2^#(false,s(x72),cons(x83,x74))≥c)
                   • Applying Rule "Variable in Equation" allows to substitute x83 by s(x71) which results in
                     (gt(s(x71),x81)→^*true⟹gt(x72,x71)→^*false⟹∀x73 . (gt(x72,x71)→^*false⟹max(x73)→^*x71⟹cond2^#(false,x72,x73)≥c)⟹∀x76 . ∀x77 . ∀x78 . (max(x74)→^*s(x76)⟹gt(x77,x76)→^*false⟹∀x78 . (gt(x77,x76)→^*false⟹max(x78)→^*x76⟹cond2^#(false,x77,x78)≥c)⟹cond2^#(false,s(x77),x74)≥c)⟹cond2^#(false,s(x72),cons(s(x71),x74))≥c)
                   • Applying Rule "Introduce fresh variable" results in
                     (s(x71)→^*x86⟹gt(x86,x81)→^*true⟹gt(x72,x71)→^*false⟹∀x73 . (gt(x72,x71)→^*false⟹max(x73)→^*x71⟹cond2^#(false,x72,x73)≥c)⟹∀x76 . ∀x77 . ∀x78 . (max(x74)→^*s(x76)⟹gt(x77,x76)→^*false⟹∀x78 . (gt(x77,x76)→^*false⟹max(x78)→^*x76⟹cond2^#(false,x77,x78)≥c)⟹cond2^#(false,s(x77),x74)≥c)⟹cond2^#(false,s(x72),cons(s(x71),x74))≥c)
                   • Applying Rule "Delete Conditions" results in
                     (s(x71)→^*x86⟹gt(x86,x81)→^*true⟹gt(x72,x71)→^*false⟹cond2^#(false,s(x72),cons(s(x71),x74))≥c)
                   • Applying Rule "Delete Conditions" results in
                     (s(x71)→^*x86⟹gt(x72,x71)→^*false⟹cond2^#(false,s(x72),cons(s(x71),x74))≥c)
                   • Applying Rule "Delete Conditions" results in
                     (gt(x72,x71)→^*false⟹cond2^#(false,s(x72),cons(s(x71),x74))≥c)
                   • Applying Rule "Induction" on gt(x72,x71)→^*false results in the following 3 new constraints.
                     1. (false→^*false⟹cond2^#(false,s(0),cons(s(x87),x74))≥c)
                        • Applying Rule "Same Constructor" results in
                          cond2^#(false,s(0),cons(s(x87),x74))≥c

                        • This constraint is kept as final constraint.

                     2. (true→^*false⟹cond2^#(false,s(s(x88)),cons(s(0),x74))≥c)
                        • Applying Rule "Different Constructors" allows to drop this constraint.
                     3. (gt(x90,x89)→^*false⟹∀x91 . (gt(x90,x89)→^*false⟹cond2^#(false,s(x90),cons(s(x89),x91))≥c)⟹cond2^#(false,s(s(x90)),cons(s(s(x89)),x74))≥c)
                        • Applying Rule "Simplify Conditions" results in
                          (cond2^#(false,s(x90),cons(s(x89),x74))≥c⟹cond2^#(false,s(s(x90)),cons(s(s(x89)),x74))≥c)

                        • This constraint is kept as final constraint.

                2. (x84→^*s(x71)⟹gt(x85,x81)→^*false⟹max(x74)→^*x84⟹gt(x72,x71)→^*false⟹∀x73 . (gt(x72,x71)→^*false⟹max(x73)→^*x71⟹cond2^#(false,x72,x73)≥c)⟹∀x76 . ∀x77 . ∀x78 . (max(x74)→^*s(x76)⟹gt(x77,x76)→^*false⟹∀x78 . (gt(x77,x76)→^*false⟹max(x78)→^*x76⟹cond2^#(false,x77,x78)≥c)⟹cond2^#(false,s(x77),x74)≥c)⟹cond2^#(false,s(x72),cons(x85,x74))≥c)
                   • Applying Rule "Variable in Equation" allows to substitute x84 by s(x71) which results in
                     (gt(x85,x81)→^*false⟹max(x74)→^*s(x71)⟹gt(x72,x71)→^*false⟹∀x73 . (gt(x72,x71)→^*false⟹max(x73)→^*x71⟹cond2^#(false,x72,x73)≥c)⟹∀x76 . ∀x77 . ∀x78 . (max(x74)→^*s(x76)⟹gt(x77,x76)→^*false⟹∀x78 . (gt(x77,x76)→^*false⟹max(x78)→^*x76⟹cond2^#(false,x77,x78)≥c)⟹cond2^#(false,s(x77),x74)≥c)⟹cond2^#(false,s(x72),cons(x85,x74))≥c)
                   • Applying Rule "Simplify Conditions" results in
                     (gt(x85,x81)→^*false⟹cond2^#(false,s(x72),x74)≥c⟹cond2^#(false,s(x72),cons(x85,x74))≥c)
                   • Applying Rule "Induction" on gt(x85,x81)→^*false results in the following 3 new constraints.
                     1. (false→^*false⟹cond2^#(false,s(x72),x74)≥c⟹cond2^#(false,s(x72),cons(0,x74))≥c)
                        • Applying Rule "Same Constructor" results in
                          (cond2^#(false,s(x72),x74)≥c⟹cond2^#(false,s(x72),cons(0,x74))≥c)

                        • This constraint is kept as final constraint.

                     2. (true→^*false⟹cond2^#(false,s(x72),cons(s(x93),x74))≥c)
                        • Applying Rule "Different Constructors" allows to drop this constraint.
                     3. (gt(x95,x94)→^*false⟹cond2^#(false,s(x72),x74)≥c⟹∀x96 . ∀x97 . (gt(x95,x94)→^*false⟹cond2^#(false,s(x96),x97)≥c⟹cond2^#(false,s(x96),cons(x95,x97))≥c)⟹cond2^#(false,s(x72),cons(s(x95),x74))≥c)
                        • Applying Rule "Simplify Conditions" results in
                          (cond2^#(false,s(x72),cons(x95,x74))≥c⟹cond2^#(false,s(x72),cons(s(x95),x74))≥c)

                        • This constraint is kept as final constraint.

  • For the chain we build the initial constraint

    (cond1^#(member(x2,x3),x2,x3)→^*cond1^#(true,x4,x5)⟹cond1^#(true,x4,x5) > st^#(s(x4),x5))

    which is simplified as follows.

    • Applying Rule "Same Constructor" results in
      (member(x2,x3)→^*true⟹x2→^*x4⟹x3→^*x5⟹cond1^#(true,x4,x5) > st^#(s(x4),x5))
    • Applying Rule "Variable in Equation" allows to substitute x4 by x2 which results in
      (member(x2,x3)→^*true⟹x3→^*x5⟹cond1^#(true,x2,x5) > st^#(s(x2),x5))
    • Applying Rule "Variable in Equation" allows to substitute x5 by x3 which results in
      (member(x2,x3)→^*true⟹cond1^#(true,x2,x3) > st^#(s(x2),x3))
    • Applying Rule "Induction" on member(x2,x3)→^*true results in the following 2 new constraints.
      1. (false→^*true⟹cond1^#(true,x42,nil) > st^#(s(x42),nil))
         • Applying Rule "Different Constructors" allows to drop this constraint.
      2. (or(equal(x45,x44),member(x45,x43))→^*true⟹(member(x45,x43)→^*true⟹cond1^#(true,x45,x43) > st^#(s(x45),x43))⟹cond1^#(true,x45,cons(x44,x43)) > st^#(s(x45),cons(x44,x43)))
         • Applying Rule "Introduce fresh variable" results in
           ((member(x45,x43)→^*true⟹cond1^#(true,x45,x43) > st^#(s(x45),x43))⟹member(x45,x43)→^*x47⟹or(equal(x45,x44),x47)→^*true⟹cond1^#(true,x45,cons(x44,x43)) > st^#(s(x45),cons(x44,x43)))
         • Applying Rule "Introduce fresh variable" results in
           (equal(x45,x44)→^*x46⟹member(x45,x43)→^*x47⟹or(x46,x47)→^*true⟹(member(x45,x43)→^*true⟹cond1^#(true,x45,x43) > st^#(s(x45),x43))⟹cond1^#(true,x45,cons(x44,x43)) > st^#(s(x45),cons(x44,x43)))
         • Applying Rule "Induction" on or(x46,x47)→^*true results in the following 2 new constraints.
           1. (true→^*true⟹equal(x45,x44)→^*x48⟹member(x45,x43)→^*true⟹(member(x45,x43)→^*true⟹cond1^#(true,x45,x43) > st^#(s(x45),x43))⟹cond1^#(true,x45,cons(x44,x43)) > st^#(s(x45),cons(x44,x43)))
              • Applying Rule "Same Constructor" results in
                (equal(x45,x44)→^*x48⟹member(x45,x43)→^*true⟹(member(x45,x43)→^*true⟹cond1^#(true,x45,x43) > st^#(s(x45),x43))⟹cond1^#(true,x45,cons(x44,x43)) > st^#(s(x45),cons(x44,x43)))
              • Applying Rule "Simplify Conditions" results in
                (equal(x45,x44)→^*x48⟹cond1^#(true,x45,x43) > st^#(s(x45),x43)⟹cond1^#(true,x45,cons(x44,x43)) > st^#(s(x45),cons(x44,x43)))
              • Applying Rule "Delete Conditions" results in
                (cond1^#(true,x45,x43) > st^#(s(x45),x43)⟹cond1^#(true,x45,cons(x44,x43)) > st^#(s(x45),cons(x44,x43)))

              • This constraint is kept as final constraint.

           2. (x49→^*true⟹equal(x45,x44)→^*x49⟹member(x45,x43)→^*false⟹(member(x45,x43)→^*true⟹cond1^#(true,x45,x43) > st^#(s(x45),x43))⟹cond1^#(true,x45,cons(x44,x43)) > st^#(s(x45),cons(x44,x43)))
              • Applying Rule "Variable in Equation" allows to substitute x49 by true which results in
                (equal(x45,x44)→^*true⟹member(x45,x43)→^*false⟹(member(x45,x43)→^*true⟹cond1^#(true,x45,x43) > st^#(s(x45),x43))⟹cond1^#(true,x45,cons(x44,x43)) > st^#(s(x45),cons(x44,x43)))
              • Applying Rule "Delete Conditions" results in
                (equal(x45,x44)→^*true⟹member(x45,x43)→^*false⟹cond1^#(true,x45,cons(x44,x43)) > st^#(s(x45),cons(x44,x43)))
              • Applying Rule "Delete Conditions" results in
                (equal(x45,x44)→^*true⟹cond1^#(true,x45,cons(x44,x43)) > st^#(s(x45),cons(x44,x43)))
              • Applying Rule "Induction" on equal(x45,x44)→^*true results in the following 4 new constraints.
                1. (true→^*true⟹cond1^#(true,0,cons(0,x43)) > st^#(s(0),cons(0,x43)))
                   • Applying Rule "Same Constructor" results in
                     cond1^#(true,0,cons(0,x43)) > st^#(s(0),cons(0,x43))

                   • This constraint is kept as final constraint.

                2. (false→^*true⟹cond1^#(true,s(x50),cons(0,x43)) > st^#(s(s(x50)),cons(0,x43)))
                   • Applying Rule "Different Constructors" allows to drop this constraint.
                3. (false→^*true⟹cond1^#(true,0,cons(s(x51),x43)) > st^#(s(0),cons(s(x51),x43)))
                   • Applying Rule "Different Constructors" allows to drop this constraint.
                4. (equal(x53,x52)→^*true⟹∀x54 . (equal(x53,x52)→^*true⟹cond1^#(true,x53,cons(x52,x54)) > st^#(s(x53),cons(x52,x54)))⟹cond1^#(true,s(x53),cons(s(x52),x43)) > st^#(s(s(x53)),cons(s(x52),x43)))
                   • Applying Rule "Simplify Conditions" results in
                     (cond1^#(true,x53,cons(x52,x43)) > st^#(s(x53),cons(x52,x43))⟹cond1^#(true,s(x53),cons(s(x52),x43)) > st^#(s(s(x53)),cons(s(x52),x43)))

                   • This constraint is kept as final constraint.

  • For the chain we build the initial constraint

    (st^#(s(x10),x11)→^*st^#(x12,x13)⟹st^#(x12,x13)≥cond1^#(member(x12,x13),x12,x13))

    which is simplified as follows.

    • Applying Rule "Same Constructor" results in
      (s(x10)→^*x12⟹x11→^*x13⟹st^#(x12,x13)≥cond1^#(member(x12,x13),x12,x13))
    • Applying Rule "Variable in Equation" allows to substitute x12 by s(x10) which results in
      (x11→^*x13⟹st^#(s(x10),x13)≥cond1^#(member(s(x10),x13),s(x10),x13))
    • Applying Rule "Variable in Equation" allows to substitute x13 by x11 which results in
      st^#(s(x10),x11)≥cond1^#(member(s(x10),x11),s(x10),x11)

    • This constraint is kept as final constraint.

  • For the chain we build the initial constraint

    (st^#(s(x18),x19)→^*st^#(x20,x21)⟹st^#(x20,x21)≥cond1^#(member(x20,x21),x20,x21))

    which is simplified as follows.

    • Applying Rule "Same Constructor" results in
      (s(x18)→^*x20⟹x19→^*x21⟹st^#(x20,x21)≥cond1^#(member(x20,x21),x20,x21))
    • Applying Rule "Variable in Equation" allows to substitute x20 by s(x18) which results in
      (x19→^*x21⟹st^#(s(x18),x21)≥cond1^#(member(s(x18),x21),s(x18),x21))
    • Applying Rule "Variable in Equation" allows to substitute x21 by x19 which results in
      st^#(s(x18),x19)≥cond1^#(member(s(x18),x19),s(x18),x19)

    • This constraint is kept as final constraint.

  • For the chain we build the initial constraint

    (cond1^#(member(x24,x25),x24,x25)→^*cond1^#(false,x26,x27)⟹cond1^#(false,x26,x27)≥cond2^#(gt(x26,max(x27)),x26,x27))

    which is simplified as follows.

    • Applying Rule "Same Constructor" results in
      (member(x24,x25)→^*false⟹x24→^*x26⟹x25→^*x27⟹cond1^#(false,x26,x27)≥cond2^#(gt(x26,max(x27)),x26,x27))
    • Applying Rule "Variable in Equation" allows to substitute x26 by x24 which results in
      (member(x24,x25)→^*false⟹x25→^*x27⟹cond1^#(false,x24,x27)≥cond2^#(gt(x24,max(x27)),x24,x27))
    • Applying Rule "Variable in Equation" allows to substitute x27 by x25 which results in
      (member(x24,x25)→^*false⟹cond1^#(false,x24,x25)≥cond2^#(gt(x24,max(x25)),x24,x25))
    • Applying Rule "Induction" on member(x24,x25)→^*false results in the following 2 new constraints.
      1. (false→^*false⟹cond1^#(false,x55,nil)≥cond2^#(gt(x55,max(nil)),x55,nil))
         • Applying Rule "Same Constructor" results in
           cond1^#(false,x55,nil)≥cond2^#(gt(x55,max(nil)),x55,nil)

         • This constraint is kept as final constraint.

      2. (or(equal(x58,x57),member(x58,x56))→^*false⟹(member(x58,x56)→^*false⟹cond1^#(false,x58,x56)≥cond2^#(gt(x58,max(x56)),x58,x56))⟹cond1^#(false,x58,cons(x57,x56))≥cond2^#(gt(x58,max(cons(x57,x56))),x58,cons(x57,x56)))
         • Applying Rule "Introduce fresh variable" results in
           ((member(x58,x56)→^*false⟹cond1^#(false,x58,x56)≥cond2^#(gt(x58,max(x56)),x58,x56))⟹member(x58,x56)→^*x60⟹or(equal(x58,x57),x60)→^*false⟹cond1^#(false,x58,cons(x57,x56))≥cond2^#(gt(x58,max(cons(x57,x56))),x58,cons(x57,x56)))
         • Applying Rule "Introduce fresh variable" results in
           (equal(x58,x57)→^*x59⟹member(x58,x56)→^*x60⟹or(x59,x60)→^*false⟹(member(x58,x56)→^*false⟹cond1^#(false,x58,x56)≥cond2^#(gt(x58,max(x56)),x58,x56))⟹cond1^#(false,x58,cons(x57,x56))≥cond2^#(gt(x58,max(cons(x57,x56))),x58,cons(x57,x56)))
         • Applying Rule "Induction" on or(x59,x60)→^*false results in the following 2 new constraints.
           1. (true→^*false⟹cond1^#(false,x58,cons(x57,x56))≥cond2^#(gt(x58,max(cons(x57,x56))),x58,cons(x57,x56)))
              • Applying Rule "Different Constructors" allows to drop this constraint.
           2. (x62→^*false⟹equal(x58,x57)→^*x62⟹member(x58,x56)→^*false⟹(member(x58,x56)→^*false⟹cond1^#(false,x58,x56)≥cond2^#(gt(x58,max(x56)),x58,x56))⟹cond1^#(false,x58,cons(x57,x56))≥cond2^#(gt(x58,max(cons(x57,x56))),x58,cons(x57,x56)))
              • Applying Rule "Simplify Conditions" results in
                (x62→^*false⟹equal(x58,x57)→^*x62⟹cond1^#(false,x58,x56)≥cond2^#(gt(x58,max(x56)),x58,x56)⟹cond1^#(false,x58,cons(x57,x56))≥cond2^#(gt(x58,max(cons(x57,x56))),x58,cons(x57,x56)))
              • Applying Rule "Variable in Equation" allows to substitute x62 by false which results in
                (equal(x58,x57)→^*false⟹cond1^#(false,x58,x56)≥cond2^#(gt(x58,max(x56)),x58,x56)⟹cond1^#(false,x58,cons(x57,x56))≥cond2^#(gt(x58,max(cons(x57,x56))),x58,cons(x57,x56)))
              • Applying Rule "Induction" on equal(x58,x57)→^*false results in the following 4 new constraints.
                1. (true→^*false⟹cond1^#(false,0,cons(0,x56))≥cond2^#(gt(0,max(cons(0,x56))),0,cons(0,x56)))
                   • Applying Rule "Different Constructors" allows to drop this constraint.
                2. (false→^*false⟹cond1^#(false,s(x63),x56)≥cond2^#(gt(s(x63),max(x56)),s(x63),x56)⟹cond1^#(false,s(x63),cons(0,x56))≥cond2^#(gt(s(x63),max(cons(0,x56))),s(x63),cons(0,x56)))
                   • Applying Rule "Same Constructor" results in
                     (cond1^#(false,s(x63),x56)≥cond2^#(gt(s(x63),max(x56)),s(x63),x56)⟹cond1^#(false,s(x63),cons(0,x56))≥cond2^#(gt(s(x63),max(cons(0,x56))),s(x63),cons(0,x56)))

                   • This constraint is kept as final constraint.

                3. (false→^*false⟹cond1^#(false,0,x56)≥cond2^#(gt(0,max(x56)),0,x56)⟹cond1^#(false,0,cons(s(x64),x56))≥cond2^#(gt(0,max(cons(s(x64),x56))),0,cons(s(x64),x56)))
                   • Applying Rule "Same Constructor" results in
                     (cond1^#(false,0,x56)≥cond2^#(gt(0,max(x56)),0,x56)⟹cond1^#(false,0,cons(s(x64),x56))≥cond2^#(gt(0,max(cons(s(x64),x56))),0,cons(s(x64),x56)))

                   • This constraint is kept as final constraint.

                4. (equal(x66,x65)→^*false⟹cond1^#(false,s(x66),x56)≥cond2^#(gt(s(x66),max(x56)),s(x66),x56)⟹∀x67 . (equal(x66,x65)→^*false⟹cond1^#(false,x66,x67)≥cond2^#(gt(x66,max(x67)),x66,x67)⟹cond1^#(false,x66,cons(x65,x67))≥cond2^#(gt(x66,max(cons(x65,x67))),x66,cons(x65,x67)))⟹cond1^#(false,s(x66),cons(s(x65),x56))≥cond2^#(gt(s(x66),max(cons(s(x65),x56))),s(x66),cons(s(x65),x56)))
                   • Applying Rule "Delete Conditions" results in
                     (equal(x66,x65)→^*false⟹cond1^#(false,s(x66),x56)≥cond2^#(gt(s(x66),max(x56)),s(x66),x56)⟹cond1^#(false,s(x66),cons(s(x65),x56))≥cond2^#(gt(s(x66),max(cons(s(x65),x56))),s(x66),cons(s(x65),x56)))
                   • Applying Rule "Delete Conditions" results in
                     (cond1^#(false,s(x66),x56)≥cond2^#(gt(s(x66),max(x56)),s(x66),x56)⟹cond1^#(false,s(x66),cons(s(x65),x56))≥cond2^#(gt(s(x66),max(cons(s(x65),x56))),s(x66),cons(s(x65),x56)))

                   • This constraint is kept as final constraint.

  • For the chain we build the initial constraint

    (cond2^#(gt(x36,max(x37)),x36,x37)→^*cond2^#(false,x38,x39)⟹cond2^#(false,x38,x39) > st^#(s(x38),x39))

    which is simplified as follows.

    • Applying Rule "Same Constructor" results in
      (gt(x36,max(x37))→^*false⟹x36→^*x38⟹x37→^*x39⟹cond2^#(false,x38,x39) > st^#(s(x38),x39))
    • Applying Rule "Variable in Equation" allows to substitute x38 by x36 which results in
      (gt(x36,max(x37))→^*false⟹x37→^*x39⟹cond2^#(false,x36,x39) > st^#(s(x36),x39))
    • Applying Rule "Variable in Equation" allows to substitute x39 by x37 which results in
      (gt(x36,max(x37))→^*false⟹cond2^#(false,x36,x37) > st^#(s(x36),x37))
    • Applying Rule "Introduce fresh variable" results in
      (max(x37)→^*x68⟹gt(x36,x68)→^*false⟹cond2^#(false,x36,x37) > st^#(s(x36),x37))
    • Applying Rule "Induction" on gt(x36,x68)→^*false results in the following 3 new constraints.
      1. (false→^*false⟹max(x37)→^*x69⟹cond2^#(false,0,x37) > st^#(s(0),x37))
         • Applying Rule "Same Constructor" results in
           (max(x37)→^*x69⟹cond2^#(false,0,x37) > st^#(s(0),x37))
         • Applying Rule "Delete Conditions" results in
           cond2^#(false,0,x37) > st^#(s(0),x37)

         • This constraint is kept as final constraint.

      2. (true→^*false⟹cond2^#(false,s(x70),x37) > st^#(s(s(x70)),x37))
         • Applying Rule "Different Constructors" allows to drop this constraint.
      3. (gt(x72,x71)→^*false⟹max(x37)→^*s(x71)⟹∀x73 . (gt(x72,x71)→^*false⟹max(x73)→^*x71⟹cond2^#(false,x72,x73) > st^#(s(x72),x73))⟹cond2^#(false,s(x72),x37) > st^#(s(s(x72)),x37))
         • Applying Rule "Induction" on max(x37)→^*s(x71) results in the following 2 new constraints.
           1. (0→^*s(x71)⟹cond2^#(false,s(x72),nil) > st^#(s(s(x72)),nil))
              • Applying Rule "Different Constructors" allows to drop this constraint.
           2. (if(gt(x75,max(x74)),x75,max(x74))→^*s(x71)⟹gt(x72,x71)→^*false⟹∀x73 . (gt(x72,x71)→^*false⟹max(x73)→^*x71⟹cond2^#(false,x72,x73) > st^#(s(x72),x73))⟹∀x76 . ∀x77 . ∀x78 . (max(x74)→^*s(x76)⟹gt(x77,x76)→^*false⟹∀x78 . (gt(x77,x76)→^*false⟹max(x78)→^*x76⟹cond2^#(false,x77,x78) > st^#(s(x77),x78))⟹cond2^#(false,s(x77),x74) > st^#(s(s(x77)),x74))⟹cond2^#(false,s(x72),cons(x75,x74)) > st^#(s(s(x72)),cons(x75,x74)))
              • Applying Rule "Introduce fresh variable" results in
                (gt(x72,x71)→^*false⟹∀x73 . (gt(x72,x71)→^*false⟹max(x73)→^*x71⟹cond2^#(false,x72,x73) > st^#(s(x72),x73))⟹∀x76 . ∀x77 . ∀x78 . (max(x74)→^*s(x76)⟹gt(x77,x76)→^*false⟹∀x78 . (gt(x77,x76)→^*false⟹max(x78)→^*x76⟹cond2^#(false,x77,x78) > st^#(s(x77),x78))⟹cond2^#(false,s(x77),x74) > st^#(s(s(x77)),x74))⟹max(x74)→^*x80⟹if(gt(x75,max(x74)),x75,x80)→^*s(x71)⟹cond2^#(false,s(x72),cons(x75,x74)) > st^#(s(s(x72)),cons(x75,x74)))
              • Applying Rule "Introduce fresh variable" results in
                (gt(x75,max(x74))→^*x79⟹max(x74)→^*x80⟹if(x79,x75,x80)→^*s(x71)⟹gt(x72,x71)→^*false⟹∀x73 . (gt(x72,x71)→^*false⟹max(x73)→^*x71⟹cond2^#(false,x72,x73) > st^#(s(x72),x73))⟹∀x76 . ∀x77 . ∀x78 . (max(x74)→^*s(x76)⟹gt(x77,x76)→^*false⟹∀x78 . (gt(x77,x76)→^*false⟹max(x78)→^*x76⟹cond2^#(false,x77,x78) > st^#(s(x77),x78))⟹cond2^#(false,s(x77),x74) > st^#(s(s(x77)),x74))⟹cond2^#(false,s(x72),cons(x75,x74)) > st^#(s(s(x72)),cons(x75,x74)))
              • Applying Rule "Introduce fresh variable" results in
                (max(x74)→^*x81⟹gt(x75,x81)→^*x79⟹max(x74)→^*x80⟹if(x79,x75,x80)→^*s(x71)⟹gt(x72,x71)→^*false⟹∀x73 . (gt(x72,x71)→^*false⟹max(x73)→^*x71⟹cond2^#(false,x72,x73) > st^#(s(x72),x73))⟹∀x76 . ∀x77 . ∀x78 . (max(x74)→^*s(x76)⟹gt(x77,x76)→^*false⟹∀x78 . (gt(x77,x76)→^*false⟹max(x78)→^*x76⟹cond2^#(false,x77,x78) > st^#(s(x77),x78))⟹cond2^#(false,s(x77),x74) > st^#(s(s(x77)),x74))⟹cond2^#(false,s(x72),cons(x75,x74)) > st^#(s(s(x72)),cons(x75,x74)))
              • Applying Rule "Delete Conditions" results in
                (gt(x75,x81)→^*x79⟹max(x74)→^*x80⟹if(x79,x75,x80)→^*s(x71)⟹gt(x72,x71)→^*false⟹∀x73 . (gt(x72,x71)→^*false⟹max(x73)→^*x71⟹cond2^#(false,x72,x73) > st^#(s(x72),x73))⟹∀x76 . ∀x77 . ∀x78 . (max(x74)→^*s(x76)⟹gt(x77,x76)→^*false⟹∀x78 . (gt(x77,x76)→^*false⟹max(x78)→^*x76⟹cond2^#(false,x77,x78) > st^#(s(x77),x78))⟹cond2^#(false,s(x77),x74) > st^#(s(s(x77)),x74))⟹cond2^#(false,s(x72),cons(x75,x74)) > st^#(s(s(x72)),cons(x75,x74)))
              • Applying Rule "Induction" on if(x79,x75,x80)→^*s(x71) results in the following 2 new constraints.
                1. (x83→^*s(x71)⟹gt(x83,x81)→^*true⟹max(x74)→^*x82⟹gt(x72,x71)→^*false⟹∀x73 . (gt(x72,x71)→^*false⟹max(x73)→^*x71⟹cond2^#(false,x72,x73) > st^#(s(x72),x73))⟹∀x76 . ∀x77 . ∀x78 . (max(x74)→^*s(x76)⟹gt(x77,x76)→^*false⟹∀x78 . (gt(x77,x76)→^*false⟹max(x78)→^*x76⟹cond2^#(false,x77,x78) > st^#(s(x77),x78))⟹cond2^#(false,s(x77),x74) > st^#(s(s(x77)),x74))⟹cond2^#(false,s(x72),cons(x83,x74)) > st^#(s(s(x72)),cons(x83,x74)))
                   • Applying Rule "Delete Conditions" results in
                     (x83→^*s(x71)⟹gt(x83,x81)→^*true⟹gt(x72,x71)→^*false⟹∀x73 . (gt(x72,x71)→^*false⟹max(x73)→^*x71⟹cond2^#(false,x72,x73) > st^#(s(x72),x73))⟹∀x76 . ∀x77 . ∀x78 . (max(x74)→^*s(x76)⟹gt(x77,x76)→^*false⟹∀x78 . (gt(x77,x76)→^*false⟹max(x78)→^*x76⟹cond2^#(false,x77,x78) > st^#(s(x77),x78))⟹cond2^#(false,s(x77),x74) > st^#(s(s(x77)),x74))⟹cond2^#(false,s(x72),cons(x83,x74)) > st^#(s(s(x72)),cons(x83,x74)))
                   • Applying Rule "Variable in Equation" allows to substitute x83 by s(x71) which results in
                     (gt(s(x71),x81)→^*true⟹gt(x72,x71)→^*false⟹∀x73 . (gt(x72,x71)→^*false⟹max(x73)→^*x71⟹cond2^#(false,x72,x73) > st^#(s(x72),x73))⟹∀x76 . ∀x77 . ∀x78 . (max(x74)→^*s(x76)⟹gt(x77,x76)→^*false⟹∀x78 . (gt(x77,x76)→^*false⟹max(x78)→^*x76⟹cond2^#(false,x77,x78) > st^#(s(x77),x78))⟹cond2^#(false,s(x77),x74) > st^#(s(s(x77)),x74))⟹cond2^#(false,s(x72),cons(s(x71),x74)) > st^#(s(s(x72)),cons(s(x71),x74)))
                   • Applying Rule "Introduce fresh variable" results in
                     (s(x71)→^*x86⟹gt(x86,x81)→^*true⟹gt(x72,x71)→^*false⟹∀x73 . (gt(x72,x71)→^*false⟹max(x73)→^*x71⟹cond2^#(false,x72,x73) > st^#(s(x72),x73))⟹∀x76 . ∀x77 . ∀x78 . (max(x74)→^*s(x76)⟹gt(x77,x76)→^*false⟹∀x78 . (gt(x77,x76)→^*false⟹max(x78)→^*x76⟹cond2^#(false,x77,x78) > st^#(s(x77),x78))⟹cond2^#(false,s(x77),x74) > st^#(s(s(x77)),x74))⟹cond2^#(false,s(x72),cons(s(x71),x74)) > st^#(s(s(x72)),cons(s(x71),x74)))
                   • Applying Rule "Delete Conditions" results in
                     (s(x71)→^*x86⟹gt(x86,x81)→^*true⟹gt(x72,x71)→^*false⟹cond2^#(false,s(x72),cons(s(x71),x74)) > st^#(s(s(x72)),cons(s(x71),x74)))
                   • Applying Rule "Delete Conditions" results in
                     (s(x71)→^*x86⟹gt(x72,x71)→^*false⟹cond2^#(false,s(x72),cons(s(x71),x74)) > st^#(s(s(x72)),cons(s(x71),x74)))
                   • Applying Rule "Delete Conditions" results in
                     (gt(x72,x71)→^*false⟹cond2^#(false,s(x72),cons(s(x71),x74)) > st^#(s(s(x72)),cons(s(x71),x74)))
                   • Applying Rule "Induction" on gt(x72,x71)→^*false results in the following 3 new constraints.
                     1. (false→^*false⟹cond2^#(false,s(0),cons(s(x87),x74)) > st^#(s(s(0)),cons(s(x87),x74)))
                        • Applying Rule "Same Constructor" results in
                          cond2^#(false,s(0),cons(s(x87),x74)) > st^#(s(s(0)),cons(s(x87),x74))

                        • This constraint is kept as final constraint.

                     2. (true→^*false⟹cond2^#(false,s(s(x88)),cons(s(0),x74)) > st^#(s(s(s(x88))),cons(s(0),x74)))
                        • Applying Rule "Different Constructors" allows to drop this constraint.
                     3. (gt(x90,x89)→^*false⟹∀x91 . (gt(x90,x89)→^*false⟹cond2^#(false,s(x90),cons(s(x89),x91)) > st^#(s(s(x90)),cons(s(x89),x91)))⟹cond2^#(false,s(s(x90)),cons(s(s(x89)),x74)) > st^#(s(s(s(x90))),cons(s(s(x89)),x74)))
                        • Applying Rule "Simplify Conditions" results in
                          (cond2^#(false,s(x90),cons(s(x89),x74)) > st^#(s(s(x90)),cons(s(x89),x74))⟹cond2^#(false,s(s(x90)),cons(s(s(x89)),x74)) > st^#(s(s(s(x90))),cons(s(s(x89)),x74)))

                        • This constraint is kept as final constraint.

                2. (x84→^*s(x71)⟹gt(x85,x81)→^*false⟹max(x74)→^*x84⟹gt(x72,x71)→^*false⟹∀x73 . (gt(x72,x71)→^*false⟹max(x73)→^*x71⟹cond2^#(false,x72,x73) > st^#(s(x72),x73))⟹∀x76 . ∀x77 . ∀x78 . (max(x74)→^*s(x76)⟹gt(x77,x76)→^*false⟹∀x78 . (gt(x77,x76)→^*false⟹max(x78)→^*x76⟹cond2^#(false,x77,x78) > st^#(s(x77),x78))⟹cond2^#(false,s(x77),x74) > st^#(s(s(x77)),x74))⟹cond2^#(false,s(x72),cons(x85,x74)) > st^#(s(s(x72)),cons(x85,x74)))
                   • Applying Rule "Variable in Equation" allows to substitute x84 by s(x71) which results in
                     (gt(x85,x81)→^*false⟹max(x74)→^*s(x71)⟹gt(x72,x71)→^*false⟹∀x73 . (gt(x72,x71)→^*false⟹max(x73)→^*x71⟹cond2^#(false,x72,x73) > st^#(s(x72),x73))⟹∀x76 . ∀x77 . ∀x78 . (max(x74)→^*s(x76)⟹gt(x77,x76)→^*false⟹∀x78 . (gt(x77,x76)→^*false⟹max(x78)→^*x76⟹cond2^#(false,x77,x78) > st^#(s(x77),x78))⟹cond2^#(false,s(x77),x74) > st^#(s(s(x77)),x74))⟹cond2^#(false,s(x72),cons(x85,x74)) > st^#(s(s(x72)),cons(x85,x74)))
                   • Applying Rule "Simplify Conditions" results in
                     (gt(x85,x81)→^*false⟹cond2^#(false,s(x72),x74) > st^#(s(s(x72)),x74)⟹cond2^#(false,s(x72),cons(x85,x74)) > st^#(s(s(x72)),cons(x85,x74)))
                   • Applying Rule "Induction" on gt(x85,x81)→^*false results in the following 3 new constraints.
                     1. (false→^*false⟹cond2^#(false,s(x72),x74) > st^#(s(s(x72)),x74)⟹cond2^#(false,s(x72),cons(0,x74)) > st^#(s(s(x72)),cons(0,x74)))
                        • Applying Rule "Same Constructor" results in
                          (cond2^#(false,s(x72),x74) > st^#(s(s(x72)),x74)⟹cond2^#(false,s(x72),cons(0,x74)) > st^#(s(s(x72)),cons(0,x74)))

                        • This constraint is kept as final constraint.

                     2. (true→^*false⟹cond2^#(false,s(x72),cons(s(x93),x74)) > st^#(s(s(x72)),cons(s(x93),x74)))
                        • Applying Rule "Different Constructors" allows to drop this constraint.
                     3. (gt(x95,x94)→^*false⟹cond2^#(false,s(x72),x74) > st^#(s(s(x72)),x74)⟹∀x96 . ∀x97 . (gt(x95,x94)→^*false⟹cond2^#(false,s(x96),x97) > st^#(s(s(x96)),x97)⟹cond2^#(false,s(x96),cons(x95,x97)) > st^#(s(s(x96)),cons(x95,x97)))⟹cond2^#(false,s(x72),cons(s(x95),x74)) > st^#(s(s(x72)),cons(s(x95),x74)))
                        • Applying Rule "Simplify Conditions" results in
                          (cond2^#(false,s(x72),cons(x95,x74)) > st^#(s(s(x72)),cons(x95,x74))⟹cond2^#(false,s(x72),cons(s(x95),x74)) > st^#(s(s(x72)),cons(s(x95),x74)))

                        • This constraint is kept as final constraint.

  We remove those pairs which are strictly decreasing and bounded.

  1.1.1.1.1.1.1 Dependency Graph Processor

  The dependency pairs are split into 0 components.

• The 2^nd component contains the pair

  member#(n,cons(m,l))

  →

  member#(n,l)

  (32)

  1.1.1.2 Usable Rules Processor

  We restrict the rewrite rules to the following usable rules of the DP problem.

  There are no rules.

  1.1.1.2.1 Innermost Lhss Removal Processor

  We restrict the innermost strategy to the following left hand sides.

  There are no lhss.

  1.1.1.2.1.1 Size-Change Termination

  Using size-change termination in combination with the subterm criterion one obtains the following initial size-change graphs.

  member#(n,cons(m,l))	→	member#(n,l)	(32)
  1	≥	1
  2	>	2

  As there is no critical graph in the transitive closure, there are no infinite chains.

• The 3^rd component contains the pair

  max#(cons(u,l))

  →

  max#(l)

  (37)

  1.1.1.3 Usable Rules Processor

  We restrict the rewrite rules to the following usable rules of the DP problem.

  There are no rules.

  1.1.1.3.1 Innermost Lhss Removal Processor

  We restrict the innermost strategy to the following left hand sides.

  There are no lhss.

  1.1.1.3.1.1 Size-Change Termination

  Using size-change termination in combination with the subterm criterion one obtains the following initial size-change graphs.

  max#(cons(u,l))	→	max#(l)	(37)
  1	>	1

  As there is no critical graph in the transitive closure, there are no infinite chains.

• The 4^th component contains the pair

  equal#(s(x),s(y))

  →

  equal#(x,y)

  (33)

  1.1.1.4 Usable Rules Processor

  We restrict the rewrite rules to the following usable rules of the DP problem.

  There are no rules.

  1.1.1.4.1 Innermost Lhss Removal Processor

  We restrict the innermost strategy to the following left hand sides.

  There are no lhss.

  1.1.1.4.1.1 Size-Change Termination

  Using size-change termination in combination with the subterm criterion one obtains the following initial size-change graphs.

  equal#(s(x),s(y))	→	equal#(x,y)	(33)
  1	>	1
  2	>	2

  As there is no critical graph in the transitive closure, there are no infinite chains.

• The 5^th component contains the pair

  gt#(s(u),s(v))

  →

  gt#(u,v)

  (34)

  1.1.1.5 Usable Rules Processor

  We restrict the rewrite rules to the following usable rules of the DP problem.

  There are no rules.

  1.1.1.5.1 Innermost Lhss Removal Processor

  We restrict the innermost strategy to the following left hand sides.

  There are no lhss.

  1.1.1.5.1.1 Size-Change Termination

  Using size-change termination in combination with the subterm criterion one obtains the following initial size-change graphs.

  gt#(s(u),s(v))	→	gt#(u,v)	(34)
  1	>	1
  2	>	2

  As there is no critical graph in the transitive closure, there are no infinite chains.