%------------------------------------------------------------------------------
% File : E-SAT---3.5.1
% Problem : SEV539+1 : TPTP v9.3.1. Released v9.1.0.
% Transfm : none
% Format : tptp:raw
% Command : run_E /export/starexec/sandbox2/benchmark/theBenchmark.p 300 THM
% Computer : n014.cluster.edu
% Model : x86_64 x86_64
% CPU : Intel(R) Xeon(R) CPU E5-2620 v4 2.10GHz
% Memory : 8046.5625MB
% OS : Linux 6.8.0-71-generic
% CPULimit : 300s
% WCLimit : 300s
% DateTime : Thu Sep 24 02:36:47 PM UTC 2026
% Result : Theorem 21.73s 4.62s
% Output : CNFRefutation 21.73s
% Verified :
% SZS Type : Refutation
% Derivation depth : 21
% Number of leaves : 13
% Syntax : Number of formulae : 118 ( 42 unt; 0 def)
% Number of atoms : 258 ( 31 equ)
% Maximal formula atoms : 10 ( 2 avg)
% Number of connectives : 228 ( 88 ~; 102 |; 24 &)
% ( 11 <=>; 3 =>; 0 <=; 0 <~>)
% Maximal formula depth : 10 ( 3 avg)
% Maximal term depth : 9 ( 2 avg)
% Number of predicates : 7 ( 5 usr; 1 prp; 0-2 aty)
% Number of functors : 11 ( 11 usr; 1 con; 0-2 aty)
% Number of variables : 213 ( 36 sgn 61 !; 5 ?)
% Comments :
%------------------------------------------------------------------------------
fof(e_ax,axiom,
! [X1] : ~ mem(X1,e),
file('/export/starexec/sandbox2/benchmark/Axioms/SET010+0.ax',e_ax) ).
fof(subq_def,axiom,
! [X1,X2] :
( subq(X1,X2)
<=> ! [X3] :
( mem(X3,X1)
=> mem(X3,X2) ) ),
file('/export/starexec/sandbox2/benchmark/Axioms/SET010+0.ax',subq_def) ).
fof(setext,axiom,
! [X1,X2] :
( subq(X1,X2)
=> ( subq(X2,X1)
=> X1 = X2 ) ),
file('/export/starexec/sandbox2/benchmark/Axioms/SET010+0.ax',setext) ).
fof(p_ax,axiom,
! [X1,X2] :
( mem(X1,p(X2))
<=> subq(X1,X2) ),
file('/export/starexec/sandbox2/benchmark/Axioms/SET010+0.ax',p_ax) ).
fof(s_ax,axiom,
! [X1,X2] :
( mem(X1,s(X2))
<=> X1 = X2 ),
file('/export/starexec/sandbox2/benchmark/Axioms/SET010+0.ax',s_ax) ).
fof(u_ax,axiom,
! [X1,X2,X3] :
( mem(X1,u(X2,X3))
<=> ( mem(X1,X3)
| mem(X1,X2) ) ),
file('/export/starexec/sandbox2/benchmark/Axioms/SET010+0.ax',u_ax) ).
fof(disj_def,axiom,
! [X1,X2] :
( disj(X1,X2)
<=> ~ ? [X3] :
( mem(X3,X2)
& mem(X3,X1) ) ),
file('/export/starexec/sandbox2/benchmark/Axioms/SET010+0.ax',disj_def) ).
fof(atleast3_327,conjecture,
atleast3p(u(n(n(s(n(e)))),p(s(n(n(e)))))),
file('/export/starexec/sandbox2/benchmark/theBenchmark.p',atleast3_327) ).
fof(atleast3p_def,axiom,
! [X1] :
( atleast3p(X1)
<=> ? [X2] :
( ~ subq(X1,X2)
& atleast2p(X2)
& subq(X2,X1) ) ),
file('/export/starexec/sandbox2/benchmark/Axioms/SET010+0.ax',atleast3p_def) ).
fof(atleast2p_def,axiom,
! [X1] :
( atleast2p(X1)
<=> ? [X2] :
( ~ subq(X1,p(X2))
& mem(X2,X1) ) ),
file('/export/starexec/sandbox2/benchmark/Axioms/SET010+0.ax',atleast2p_def) ).
fof(m_ax,axiom,
! [X1,X2,X3] :
( mem(X1,m(X2,X3))
<=> ( ~ mem(X1,X3)
& mem(X1,X2) ) ),
file('/export/starexec/sandbox2/benchmark/Axioms/SET010+0.ax',m_ax) ).
fof(n_def,axiom,
! [X1] : n(X1) = a(X1,X1),
file('/export/starexec/sandbox2/benchmark/Axioms/SET010+0.ax',n_def) ).
fof(a_def,axiom,
! [X1,X2] : a(X1,X2) = u(X1,s(X2)),
file('/export/starexec/sandbox2/benchmark/Axioms/SET010+0.ax',a_def) ).
fof(c_0_13,plain,
! [X1] : ~ mem(X1,e),
inference(fof_simplification,[status(thm)],[e_ax]) ).
fof(c_0_14,plain,
! [X18] : ~ mem(X18,e),
inference(fof_nnf,[status(thm)],[inference(variable_rename,[status(thm)],[c_0_13])]) ).
fof(c_0_15,plain,
! [X4,X5,X6,X7,X8] :
( ( subq(X7,X8)
| ~ mem(esk1_2(X7,X8),X8) )
& ( subq(X7,X8)
| mem(esk1_2(X7,X8),X7) )
& ( mem(X6,X5)
| ~ mem(X6,X4)
| ~ subq(X4,X5) ) ),
inference(distribute,[status(thm)],[inference(fof_nnf,[status(thm)],[inference(shift_quantors,[status(thm)],[inference(skolemize,[status(esa)],[inference(variable_rename,[status(thm)],[inference(shift_quantors,[status(thm)],[inference(fof_nnf,[status(thm)],[subq_def])])])])])])]) ).
fof(c_0_16,plain,
! [X10,X11] :
( X10 = X11
| ~ subq(X11,X10)
| ~ subq(X10,X11) ),
inference(fof_nnf,[status(thm)],[inference(variable_rename,[status(thm)],[inference(fof_nnf,[status(thm)],[setext])])]) ).
cnf(c_0_17,plain,
~ mem(X1,e),
inference(split_conjunct,[status(thm)],[c_0_14]) ).
cnf(c_0_18,plain,
( subq(X1,X2)
| mem(esk1_2(X1,X2),X1) ),
inference(split_conjunct,[status(thm)],[c_0_15]) ).
fof(c_0_19,plain,
! [X30,X31] :
( ( mem(X30,p(X31))
| ~ subq(X30,X31) )
& ( subq(X30,X31)
| ~ mem(X30,p(X31)) ) ),
inference(fof_nnf,[status(thm)],[inference(variable_rename,[status(thm)],[inference(fof_nnf,[status(thm)],[p_ax])])]) ).
cnf(c_0_20,plain,
( ~ subq(X2,X1)
| ~ subq(X1,X2)
| X1 = X2 ),
inference(split_conjunct,[status(thm)],[c_0_16]) ).
cnf(c_0_21,plain,
subq(e,X1),
inference(spm,[status(thm)],[c_0_17,c_0_18]) ).
cnf(c_0_22,plain,
( ~ mem(X1,p(X2))
| subq(X1,X2) ),
inference(split_conjunct,[status(thm)],[c_0_19]) ).
fof(c_0_23,plain,
! [X19,X20] :
( ( mem(X19,s(X20))
| X19 != X20 )
& ( X19 = X20
| ~ mem(X19,s(X20)) ) ),
inference(fof_nnf,[status(thm)],[inference(variable_rename,[status(thm)],[inference(fof_nnf,[status(thm)],[s_ax])])]) ).
cnf(c_0_24,plain,
( ~ subq(X1,e)
| X1 = e ),
inference(spm,[status(thm)],[c_0_20,c_0_21]) ).
cnf(c_0_25,plain,
( subq(p(X1),X2)
| subq(esk1_2(p(X1),X2),X1) ),
inference(spm,[status(thm)],[c_0_22,c_0_18]) ).
cnf(c_0_26,plain,
( ~ mem(X1,s(X2))
| X1 = X2 ),
inference(split_conjunct,[status(thm)],[c_0_23]) ).
cnf(c_0_27,plain,
( ~ mem(esk1_2(X1,X2),X2)
| subq(X1,X2) ),
inference(split_conjunct,[status(thm)],[c_0_15]) ).
cnf(c_0_28,plain,
( subq(p(e),X1)
| esk1_2(p(e),X1) = e ),
inference(spm,[status(thm)],[c_0_24,c_0_25]) ).
cnf(c_0_29,plain,
( X1 != X2
| mem(X1,s(X2)) ),
inference(split_conjunct,[status(thm)],[c_0_23]) ).
cnf(c_0_30,plain,
( subq(s(X1),X2)
| esk1_2(s(X1),X2) = X1 ),
inference(spm,[status(thm)],[c_0_26,c_0_18]) ).
cnf(c_0_31,plain,
( ~ subq(X1,X2)
| mem(X1,p(X2)) ),
inference(split_conjunct,[status(thm)],[c_0_19]) ).
cnf(c_0_32,plain,
subq(X1,X1),
inference(spm,[status(thm)],[c_0_27,c_0_18]) ).
cnf(c_0_33,plain,
( ~ mem(e,X1)
| subq(p(e),X1) ),
inference(spm,[status(thm)],[c_0_27,c_0_28]) ).
cnf(c_0_34,plain,
mem(X1,s(X1)),
inference(er,[status(thm)],[c_0_29]) ).
cnf(c_0_35,plain,
( ~ mem(X1,X2)
| subq(s(X1),X2) ),
inference(spm,[status(thm)],[c_0_27,c_0_30]) ).
cnf(c_0_36,plain,
mem(X1,p(X1)),
inference(spm,[status(thm)],[c_0_31,c_0_32]) ).
cnf(c_0_37,plain,
subq(p(e),s(e)),
inference(spm,[status(thm)],[c_0_33,c_0_34]) ).
cnf(c_0_38,plain,
subq(s(X1),p(X1)),
inference(spm,[status(thm)],[c_0_35,c_0_36]) ).
fof(c_0_39,plain,
! [X21,X22,X23] :
( ( mem(X21,u(X22,X23))
| ~ mem(X21,X23) )
& ( mem(X21,u(X22,X23))
| ~ mem(X21,X22) )
& ( mem(X21,X23)
| mem(X21,X22)
| ~ mem(X21,u(X22,X23)) ) ),
inference(distribute,[status(thm)],[inference(fof_nnf,[status(thm)],[inference(variable_rename,[status(thm)],[inference(fof_nnf,[status(thm)],[u_ax])])])]) ).
cnf(c_0_40,plain,
p(e) = s(e),
inference(cn,[status(thm)],[inference(rw,[status(thm)],[inference(spm,[status(thm)],[c_0_20,c_0_37]),c_0_38])]) ).
fof(c_0_41,plain,
! [X12,X13,X14,X15,X16] :
( ( disj(X15,X16)
| mem(esk2_2(X15,X16),X16) )
& ( disj(X15,X16)
| mem(esk2_2(X15,X16),X15) )
& ( ~ mem(X14,X13)
| ~ mem(X14,X12)
| ~ disj(X12,X13) ) ),
inference(distribute,[status(thm)],[inference(fof_nnf,[status(thm)],[inference(shift_quantors,[status(thm)],[inference(skolemize,[status(esa)],[inference(variable_rename,[status(thm)],[inference(shift_quantors,[status(thm)],[inference(fof_nnf,[status(thm)],[disj_def])])])])])])]) ).
fof(c_0_42,negated_conjecture,
~ atleast3p(u(n(n(s(n(e)))),p(s(n(n(e)))))),
inference(assume_negation,[status(cth)],[atleast3_327]) ).
fof(c_0_43,plain,
! [X1] :
( atleast3p(X1)
<=> ? [X2] :
( ~ subq(X1,X2)
& atleast2p(X2)
& subq(X2,X1) ) ),
inference(fof_simplification,[status(thm)],[atleast3p_def]) ).
cnf(c_0_44,plain,
( ~ mem(X1,X2)
| mem(X1,u(X3,X2)) ),
inference(split_conjunct,[status(thm)],[c_0_39]) ).
cnf(c_0_45,plain,
( ~ mem(X1,u(X2,X3))
| mem(X1,X3)
| mem(X1,X2) ),
inference(split_conjunct,[status(thm)],[c_0_39]) ).
fof(c_0_46,plain,
! [X1] :
( atleast2p(X1)
<=> ? [X2] :
( ~ subq(X1,p(X2))
& mem(X2,X1) ) ),
inference(fof_simplification,[status(thm)],[atleast2p_def]) ).
cnf(c_0_47,plain,
( ~ mem(X3,X1)
| ~ subq(X1,X2)
| mem(X3,X2) ),
inference(split_conjunct,[status(thm)],[c_0_15]) ).
cnf(c_0_48,plain,
( ~ mem(X1,s(e))
| subq(X1,e) ),
inference(spm,[status(thm)],[c_0_22,c_0_40]) ).
cnf(c_0_49,plain,
( disj(X1,X2)
| mem(esk2_2(X1,X2),X2) ),
inference(split_conjunct,[status(thm)],[c_0_41]) ).
fof(c_0_50,plain,
! [X1,X2,X3] :
( mem(X1,m(X2,X3))
<=> ( ~ mem(X1,X3)
& mem(X1,X2) ) ),
inference(fof_simplification,[status(thm)],[m_ax]) ).
fof(c_0_51,negated_conjecture,
~ atleast3p(u(n(n(s(n(e)))),p(s(n(n(e)))))),
inference(fof_simplification,[status(thm)],[c_0_42]) ).
fof(c_0_52,plain,
! [X36,X38,X39] :
( ( atleast3p(X38)
| subq(X38,X39)
| ~ atleast2p(X39)
| ~ subq(X39,X38) )
& ( ~ atleast3p(X36)
| ~ subq(X36,esk4_1(X36)) )
& ( ~ atleast3p(X36)
| atleast2p(esk4_1(X36)) )
& ( ~ atleast3p(X36)
| subq(esk4_1(X36),X36) ) ),
inference(distribute,[status(thm)],[inference(fof_nnf,[status(thm)],[inference(shift_quantors,[status(thm)],[inference(skolemize,[status(esa)],[inference(variable_rename,[status(thm)],[inference(shift_quantors,[status(thm)],[inference(fof_nnf,[status(thm)],[c_0_43])])])])])])]) ).
cnf(c_0_53,plain,
( subq(X1,X2)
| mem(esk1_2(X1,X2),u(X3,X1)) ),
inference(spm,[status(thm)],[c_0_44,c_0_18]) ).
cnf(c_0_54,plain,
( subq(u(X1,X2),X3)
| mem(esk1_2(u(X1,X2),X3),X2)
| mem(esk1_2(u(X1,X2),X3),X1) ),
inference(spm,[status(thm)],[c_0_45,c_0_18]) ).
fof(c_0_55,plain,
! [X32,X34,X35] :
( ( atleast2p(X34)
| subq(X34,p(X35))
| ~ mem(X35,X34) )
& ( ~ atleast2p(X32)
| ~ subq(X32,p(esk3_1(X32))) )
& ( ~ atleast2p(X32)
| mem(esk3_1(X32),X32) ) ),
inference(distribute,[status(thm)],[inference(fof_nnf,[status(thm)],[inference(shift_quantors,[status(thm)],[inference(skolemize,[status(esa)],[inference(variable_rename,[status(thm)],[inference(shift_quantors,[status(thm)],[inference(fof_nnf,[status(thm)],[c_0_46])])])])])])]) ).
cnf(c_0_56,plain,
( ~ mem(X1,X2)
| mem(X1,u(X2,X3)) ),
inference(split_conjunct,[status(thm)],[c_0_39]) ).
cnf(c_0_57,plain,
( ~ subq(X1,X3)
| subq(X1,X2)
| mem(esk1_2(X1,X2),X3) ),
inference(spm,[status(thm)],[c_0_47,c_0_18]) ).
cnf(c_0_58,plain,
( subq(esk2_2(X1,s(e)),e)
| disj(X1,s(e)) ),
inference(spm,[status(thm)],[c_0_48,c_0_49]) ).
cnf(c_0_59,plain,
( disj(X1,X2)
| mem(esk2_2(X1,X2),X1) ),
inference(split_conjunct,[status(thm)],[c_0_41]) ).
fof(c_0_60,plain,
! [X24,X25,X26] :
( ( mem(X24,m(X25,X26))
| mem(X24,X26)
| ~ mem(X24,X25) )
& ( ~ mem(X24,m(X25,X26))
| ~ mem(X24,X26) )
& ( ~ mem(X24,m(X25,X26))
| mem(X24,X25) ) ),
inference(distribute,[status(thm)],[inference(fof_nnf,[status(thm)],[inference(variable_rename,[status(thm)],[inference(fof_nnf,[status(thm)],[c_0_50])])])]) ).
fof(c_0_61,negated_conjecture,
~ atleast3p(u(n(n(s(n(e)))),p(s(n(n(e)))))),
inference(fof_nnf,[status(thm)],[c_0_51]) ).
fof(c_0_62,plain,
! [X29] : n(X29) = a(X29,X29),
inference(variable_rename,[status(thm)],[n_def]) ).
fof(c_0_63,plain,
! [X27,X28] : a(X27,X28) = u(X27,s(X28)),
inference(variable_rename,[status(thm)],[a_def]) ).
cnf(c_0_64,plain,
( ~ atleast2p(X1)
| ~ subq(X1,X2)
| atleast3p(X2)
| subq(X2,X1) ),
inference(split_conjunct,[status(thm)],[c_0_52]) ).
cnf(c_0_65,plain,
subq(X1,u(X2,X1)),
inference(spm,[status(thm)],[c_0_27,c_0_53]) ).
cnf(c_0_66,plain,
( subq(u(X1,X2),X2)
| mem(esk1_2(u(X1,X2),X2),X1) ),
inference(spm,[status(thm)],[c_0_27,c_0_54]) ).
cnf(c_0_67,plain,
( ~ mem(X1,X2)
| atleast2p(X2)
| subq(X2,p(X1)) ),
inference(split_conjunct,[status(thm)],[c_0_55]) ).
cnf(c_0_68,plain,
mem(e,p(X1)),
inference(spm,[status(thm)],[c_0_31,c_0_21]) ).
cnf(c_0_69,plain,
( subq(X1,X2)
| mem(esk1_2(X1,X2),u(X1,X3)) ),
inference(spm,[status(thm)],[c_0_56,c_0_18]) ).
cnf(c_0_70,plain,
( subq(esk2_2(X1,s(e)),X2)
| disj(X1,s(e)) ),
inference(sr,[status(thm)],[inference(spm,[status(thm)],[c_0_57,c_0_58]),c_0_17]) ).
cnf(c_0_71,plain,
( disj(s(X1),X2)
| esk2_2(s(X1),X2) = X1 ),
inference(spm,[status(thm)],[c_0_26,c_0_59]) ).
cnf(c_0_72,plain,
( ~ mem(X1,m(X2,X3))
| mem(X1,X2) ),
inference(split_conjunct,[status(thm)],[c_0_60]) ).
cnf(c_0_73,negated_conjecture,
~ atleast3p(u(n(n(s(n(e)))),p(s(n(n(e)))))),
inference(split_conjunct,[status(thm)],[c_0_61]) ).
cnf(c_0_74,plain,
n(X1) = a(X1,X1),
inference(split_conjunct,[status(thm)],[c_0_62]) ).
cnf(c_0_75,plain,
a(X1,X2) = u(X1,s(X2)),
inference(split_conjunct,[status(thm)],[c_0_63]) ).
cnf(c_0_76,plain,
( ~ atleast2p(X2)
| subq(u(X1,X2),X2)
| atleast3p(u(X1,X2)) ),
inference(spm,[status(thm)],[c_0_64,c_0_65]) ).
cnf(c_0_77,plain,
subq(u(e,X1),X1),
inference(spm,[status(thm)],[c_0_17,c_0_66]) ).
cnf(c_0_78,plain,
( subq(p(X1),p(e))
| atleast2p(p(X1)) ),
inference(spm,[status(thm)],[c_0_67,c_0_68]) ).
cnf(c_0_79,plain,
subq(X1,u(X1,X2)),
inference(spm,[status(thm)],[c_0_27,c_0_69]) ).
cnf(c_0_80,plain,
( subq(X1,X2)
| disj(s(X1),s(e)) ),
inference(spm,[status(thm)],[c_0_70,c_0_71]) ).
cnf(c_0_81,plain,
( subq(m(X1,X2),X3)
| mem(esk1_2(m(X1,X2),X3),X1) ),
inference(spm,[status(thm)],[c_0_72,c_0_18]) ).
cnf(c_0_82,plain,
mem(X1,u(s(X1),X2)),
inference(spm,[status(thm)],[c_0_56,c_0_34]) ).
cnf(c_0_83,negated_conjecture,
~ atleast3p(u(u(u(s(u(e,s(e))),s(s(u(e,s(e))))),s(u(s(u(e,s(e))),s(s(u(e,s(e))))))),p(s(u(u(e,s(e)),s(u(e,s(e)))))))),
inference(rw,[status(thm)],[inference(rw,[status(thm)],[inference(rw,[status(thm)],[inference(rw,[status(thm)],[inference(rw,[status(thm)],[inference(rw,[status(thm)],[inference(rw,[status(thm)],[inference(rw,[status(thm)],[inference(rw,[status(thm)],[inference(rw,[status(thm)],[inference(rw,[status(thm)],[inference(rw,[status(thm)],[inference(rw,[status(thm)],[inference(rw,[status(thm)],[inference(rw,[status(thm)],[c_0_73,c_0_74]),c_0_74]),c_0_74]),c_0_74]),c_0_74]),c_0_75]),c_0_75]),c_0_75]),c_0_75]),c_0_75]),c_0_75]),c_0_75]),c_0_75]),c_0_75]),c_0_75]) ).
cnf(c_0_84,plain,
( ~ atleast2p(X2)
| atleast3p(u(X1,X2))
| u(X1,X2) = X2 ),
inference(cn,[status(thm)],[inference(rw,[status(thm)],[inference(spm,[status(thm)],[c_0_20,c_0_76]),c_0_65])]) ).
cnf(c_0_85,plain,
u(e,X1) = X1,
inference(cn,[status(thm)],[inference(rw,[status(thm)],[inference(spm,[status(thm)],[c_0_20,c_0_77]),c_0_65])]) ).
cnf(c_0_86,plain,
( ~ subq(p(e),p(X1))
| atleast2p(p(X1))
| p(e) = p(X1) ),
inference(spm,[status(thm)],[c_0_20,c_0_78]) ).
cnf(c_0_87,plain,
subq(p(e),p(X1)),
inference(spm,[status(thm)],[c_0_33,c_0_68]) ).
cnf(c_0_88,plain,
( ~ mem(X1,m(X3,X2))
| ~ mem(X1,X2) ),
inference(split_conjunct,[status(thm)],[c_0_60]) ).
cnf(c_0_89,plain,
mem(X1,p(u(X1,X2))),
inference(spm,[status(thm)],[c_0_31,c_0_79]) ).
cnf(c_0_90,plain,
( ~ subq(X1,X2)
| disj(s(X2),s(e))
| X1 = X2 ),
inference(spm,[status(thm)],[c_0_20,c_0_80]) ).
cnf(c_0_91,plain,
subq(m(X1,X2),X1),
inference(spm,[status(thm)],[c_0_27,c_0_81]) ).
cnf(c_0_92,plain,
mem(X1,u(u(s(X1),X2),X3)),
inference(spm,[status(thm)],[c_0_56,c_0_82]) ).
cnf(c_0_93,negated_conjecture,
( ~ atleast2p(p(s(u(s(e),s(s(e))))))
| u(u(u(s(s(e)),s(s(s(e)))),s(u(s(s(e)),s(s(s(e)))))),p(s(u(s(e),s(s(e)))))) = p(s(u(s(e),s(s(e))))) ),
inference(rw,[status(thm)],[inference(rw,[status(thm)],[inference(rw,[status(thm)],[inference(rw,[status(thm)],[inference(rw,[status(thm)],[inference(rw,[status(thm)],[inference(rw,[status(thm)],[inference(rw,[status(thm)],[inference(rw,[status(thm)],[inference(rw,[status(thm)],[inference(spm,[status(thm)],[c_0_83,c_0_84]),c_0_85]),c_0_85]),c_0_85]),c_0_85]),c_0_85]),c_0_85]),c_0_85]),c_0_85]),c_0_85]),c_0_85]) ).
cnf(c_0_94,plain,
( atleast2p(p(X1))
| p(X1) = s(e) ),
inference(rw,[status(thm)],[inference(cn,[status(thm)],[inference(rw,[status(thm)],[c_0_86,c_0_87])]),c_0_40]) ).
cnf(c_0_95,plain,
~ mem(X1,m(X2,p(u(X1,X3)))),
inference(spm,[status(thm)],[c_0_88,c_0_89]) ).
cnf(c_0_96,plain,
( disj(s(X1),s(e))
| m(X1,X2) = X1 ),
inference(spm,[status(thm)],[c_0_90,c_0_91]) ).
cnf(c_0_97,plain,
( disj(X1,s(X2))
| esk2_2(X1,s(X2)) = X2 ),
inference(spm,[status(thm)],[c_0_26,c_0_49]) ).
cnf(c_0_98,plain,
mem(X1,u(u(u(s(X1),X2),X3),X4)),
inference(spm,[status(thm)],[c_0_56,c_0_92]) ).
cnf(c_0_99,negated_conjecture,
( p(s(u(s(e),s(s(e))))) = s(e)
| u(u(u(s(s(e)),s(s(s(e)))),s(u(s(s(e)),s(s(s(e)))))),p(s(u(s(e),s(s(e)))))) = p(s(u(s(e),s(s(e))))) ),
inference(spm,[status(thm)],[c_0_93,c_0_94]) ).
cnf(c_0_100,plain,
( ~ mem(X2,X1)
| disj(s(X1),s(e)) ),
inference(spm,[status(thm)],[c_0_95,c_0_96]) ).
cnf(c_0_101,plain,
( ~ mem(X3,X2)
| ~ mem(X3,X1)
| ~ disj(X1,X2) ),
inference(split_conjunct,[status(thm)],[c_0_41]) ).
cnf(c_0_102,plain,
( mem(X2,X1)
| disj(X1,s(X2)) ),
inference(spm,[status(thm)],[c_0_59,c_0_97]) ).
cnf(c_0_103,negated_conjecture,
( mem(s(e),p(s(u(s(e),s(s(e))))))
| p(s(u(s(e),s(s(e))))) = s(e) ),
inference(spm,[status(thm)],[c_0_98,c_0_99]) ).
cnf(c_0_104,plain,
disj(s(s(X1)),s(e)),
inference(spm,[status(thm)],[c_0_100,c_0_34]) ).
cnf(c_0_105,plain,
mem(X1,u(X2,s(X1))),
inference(spm,[status(thm)],[c_0_44,c_0_34]) ).
cnf(c_0_106,plain,
( ~ mem(X3,X2)
| ~ mem(X3,s(X1))
| mem(X1,X2) ),
inference(spm,[status(thm)],[c_0_101,c_0_102]) ).
cnf(c_0_107,negated_conjecture,
( subq(s(e),s(u(s(e),s(s(e)))))
| p(s(u(s(e),s(s(e))))) = s(e) ),
inference(spm,[status(thm)],[c_0_22,c_0_103]) ).
cnf(c_0_108,plain,
( ~ mem(X1,s(e))
| ~ mem(X1,s(s(X2))) ),
inference(spm,[status(thm)],[c_0_101,c_0_104]) ).
cnf(c_0_109,plain,
disj(s(u(X1,s(X2))),s(e)),
inference(spm,[status(thm)],[c_0_100,c_0_105]) ).
cnf(c_0_110,plain,
( ~ mem(X2,s(X1))
| mem(X1,s(X2)) ),
inference(spm,[status(thm)],[c_0_106,c_0_34]) ).
cnf(c_0_111,negated_conjecture,
( subq(s(e),s(u(s(e),s(s(e)))))
| mem(s(u(s(e),s(s(e)))),s(e)) ),
inference(spm,[status(thm)],[c_0_36,c_0_107]) ).
cnf(c_0_112,plain,
~ mem(e,s(s(X1))),
inference(spm,[status(thm)],[c_0_108,c_0_34]) ).
cnf(c_0_113,plain,
( ~ mem(X1,s(e))
| ~ mem(X1,s(u(X2,s(X3)))) ),
inference(spm,[status(thm)],[c_0_101,c_0_109]) ).
cnf(c_0_114,plain,
( ~ subq(s(X1),X2)
| mem(X1,X2) ),
inference(spm,[status(thm)],[c_0_47,c_0_34]) ).
cnf(c_0_115,negated_conjecture,
subq(s(e),s(u(s(e),s(s(e))))),
inference(sr,[status(thm)],[inference(spm,[status(thm)],[c_0_110,c_0_111]),c_0_112]) ).
cnf(c_0_116,plain,
~ mem(e,s(u(X1,s(X2)))),
inference(spm,[status(thm)],[c_0_113,c_0_34]) ).
cnf(c_0_117,negated_conjecture,
$false,
inference(sr,[status(thm)],[inference(spm,[status(thm)],[c_0_114,c_0_115]),c_0_116]),
[proof] ).
%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.00/0.02 % Problem : SEV539+1 : TPTP v9.3.1. Released v9.1.0.
% 0.00/0.04 % Command : run_E /export/starexec/sandbox2/benchmark/theBenchmark.p 300 THM
% 0.09/0.36 % Computer : n014.cluster.edu
% 0.09/0.36 % Model : x86_64 x86_64
% 0.09/0.36 % CPU : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.09/0.36 % Memory : 8046.5625MB
% 0.09/0.36 % OS : Linux 6.8.0-71-generic
% 0.09/0.36 % CPULimit : 300
% 0.09/0.36 % WCLimit : 300
% 0.09/0.36 % DateTime : Mon Sep 21 07:25:19 UTC 2026
% 0.13/0.37 % CPUTime :
% 0.13/0.37 Running run_E /export/starexec/sandbox2/benchmark/theBenchmark.p 300 THM
% 0.13/0.41 Running first-order theorem proving
% 0.13/0.41 Running: /export/starexec/sandbox2/solver/bin/eprover --delete-bad-limit=2000000000 --definitional-cnf=24 -s --print-statistics -R --print-version --proof-object --auto-schedule=8 --cpu-limit=300 /export/starexec/sandbox2/benchmark/theBenchmark.p
% 21.73/4.62 % Version: 3.5.1
% 21.73/4.62 % Preprocessing class: FSMSSMSSSSSNFFN.
% 21.73/4.62 % Scheduled 4 strats onto 8 cores with 300 seconds (2400 total)
% 21.73/4.62 % Starting G-E--_208_C18_F1_SE_CS_SOS_SP_PS_S5PRR_RG_S04AN with 1500s (5) cores
% 21.73/4.62 % Starting new_bool_3 with 300s (1) cores
% 21.73/4.62 % Starting new_bool_1 with 300s (1) cores
% 21.73/4.62 % Starting sh5l with 300s (1) cores
% 21.73/4.62 % G-E--_208_C18_F1_SE_CS_SOS_SP_PS_S5PRR_RG_S04AN with pid 3532817 completed with status 0
% 21.73/4.62 % Result found by G-E--_208_C18_F1_SE_CS_SOS_SP_PS_S5PRR_RG_S04AN
% 21.73/4.62 % Preprocessing class: FSMSSMSSSSSNFFN.
% 21.73/4.62 % Scheduled 4 strats onto 8 cores with 300 seconds (2400 total)
% 21.73/4.62 % Starting G-E--_208_C18_F1_SE_CS_SOS_SP_PS_S5PRR_RG_S04AN with 1500s (5) cores
% 21.73/4.62 % (lift_lambdas = 1, lambda_to_forall = 1,unroll_only_formulas = 1, sine = Auto)
% 21.73/4.62 % No SInE strategy applied
% 21.73/4.62 % Search class: FGHSF-FFMF21-DFFFFFNN
% 21.73/4.62 % partial match(1): FGHSF-FFMF21-SFFFFFNN
% 21.73/4.62 % Scheduled 7 strats onto 5 cores with 1500 seconds (1500 total)
% 21.73/4.62 % Starting SubtermCWHack with 136s (1) cores
% 21.73/4.62 % Starting G-E--_208_C18_F1_SE_CS_SOS_SP_PS_S5PRR_RG_S04AN with 151s (1) cores
% 21.73/4.62 % Starting G-E--_208_B07----S_F1_SE_CS_SP_PS_S5PRR_RG_S04AN with 136s (1) cores
% 21.73/4.62 % Starting new_bool_3 with 136s (1) cores
% 21.73/4.62 % Starting G-E--_208_B00_00_F1_SE_CS_SP_PS_S033N with 136s (1) cores
% 21.73/4.62 % new_bool_3 with pid 3532827 completed with status 0
% 21.73/4.62 % Result found by new_bool_3
% 21.73/4.62 % Preprocessing class: FSMSSMSSSSSNFFN.
% 21.73/4.62 % Scheduled 4 strats onto 8 cores with 300 seconds (2400 total)
% 21.73/4.62 % Starting G-E--_208_C18_F1_SE_CS_SOS_SP_PS_S5PRR_RG_S04AN with 1500s (5) cores
% 21.73/4.62 % (lift_lambdas = 1, lambda_to_forall = 1,unroll_only_formulas = 1, sine = Auto)
% 21.73/4.62 % No SInE strategy applied
% 21.73/4.62 % Search class: FGHSF-FFMF21-DFFFFFNN
% 21.73/4.62 % partial match(1): FGHSF-FFMF21-SFFFFFNN
% 21.73/4.62 % Scheduled 7 strats onto 5 cores with 1500 seconds (1500 total)
% 21.73/4.62 % Starting SubtermCWHack with 136s (1) cores
% 21.73/4.62 % Starting G-E--_208_C18_F1_SE_CS_SOS_SP_PS_S5PRR_RG_S04AN with 151s (1) cores
% 21.73/4.62 % Starting G-E--_208_B07----S_F1_SE_CS_SP_PS_S5PRR_RG_S04AN with 136s (1) cores
% 21.73/4.62 % Starting new_bool_3 with 136s (1) cores
% 21.73/4.62 % Preprocessing time : 0.002 s
% 21.73/4.62 % Presaturation interreduction done
% 21.73/4.62
% 21.73/4.62 % Proof found!
% 21.73/4.62 % SZS status Theorem
% 21.73/4.62 % SZS output start CNFRefutation
% See solution above
% 21.73/4.62 % Parsed axioms : 26
% 21.73/4.62 % Removed by relevancy pruning/SinE : 0
% 21.73/4.62 % Initial clauses : 80
% 21.73/4.62 % Removed in clause preprocessing : 2
% 21.73/4.62 % Initial clauses in saturation : 78
% 21.73/4.62 % Processed clauses : 19079
% 21.73/4.62 % ...of these trivial : 899
% 21.73/4.62 % ...subsumed : 12224
% 21.73/4.62 % ...remaining for further processing : 5956
% 21.73/4.62 % Other redundant clauses eliminated : 1
% 21.73/4.62 % Clauses deleted for lack of memory : 0
% 21.73/4.62 % Backward-subsumed : 678
% 21.73/4.62 % Backward-rewritten : 279
% 21.73/4.62 % Generated clauses : 124561
% 21.73/4.62 % ...of the previous two non-redundant : 98960
% 21.73/4.62 % ...aggressively subsumed : 0
% 21.73/4.62 % Contextual simplify-reflections : 204
% 21.73/4.62 % Paramodulations : 124517
% 21.73/4.62 % Factorizations : 40
% 21.73/4.62 % NegExts : 0
% 21.73/4.62 % Equation resolutions : 1
% 21.73/4.62 % Disequality decompositions : 0
% 21.73/4.62 % Total rewrite steps : 30229
% 21.73/4.62 % ...of those cached : 24249
% 21.73/4.62 % Propositional unsat checks : 1
% 21.73/4.62 % Propositional check models : 0
% 21.73/4.62 % Propositional check unsatisfiable : 0
% 21.73/4.62 % Propositional clauses : 0
% 21.73/4.62 % Propositional clauses after purity: 0
% 21.73/4.62 % Propositional unsat core size : 0
% 21.73/4.62 % Propositional preprocessing time : 0.000
% 21.73/4.62 % Propositional encoding time : 0.083
% 21.73/4.62 % Propositional solver time : 0.081
% 21.73/4.62 % Success case prop preproc time : 0.000
% 21.73/4.62 % Success case prop encoding time : 0.000
% 21.73/4.62 % Success case prop solver time : 0.000
% 21.73/4.62 % Current number of processed clauses : 4917
% 21.73/4.62 % Positive orientable unit clauses : 706
% 21.73/4.62 % Positive unorientable unit clauses: 0
% 21.73/4.62 % Negative unit clauses : 604
% 21.73/4.62 % Non-unit-clauses : 3607
% 21.73/4.62 % Current number of unprocessed clauses: 77600
% 21.73/4.62 % ...number of literals in the above : 214506
% 21.73/4.62 % Current number of archived formulas : 0
% 21.73/4.62 % Current number of archived clauses : 1040
% 21.73/4.62 % Clause-clause subsumption calls (NU) : 2689056
% 21.73/4.62 % Rec. Clause-clause subsumption calls : 1459545
% 21.73/4.62 % Non-unit clause-clause subsumptions : 7256
% 21.73/4.62 % Unit Clause-clause subsumption calls : 468501
% 21.73/4.62 % Rewrite failures with RHS unbound : 0
% 21.73/4.62 % BW rewrite match attempts : 27353
% 21.73/4.62 % BW rewrite match successes : 142
% 21.73/4.62 % Condensation attempts : 0
% 21.73/4.62 % Condensation successes : 0
% 21.73/4.62 % Termbank termtop insertions : 2385787
% 21.73/4.62 % Search garbage collected termcells : 1295
% 21.73/4.62
% 21.73/4.62 % -------------------------------------------------
% 21.73/4.62 % User time : 3.282 s
% 21.73/4.62 % System time : 0.103 s
% 21.73/4.62 % Total time : 3.385 s
% 21.73/4.62 % Maximum resident set size: 3668 pages
% 21.73/4.62
% 21.73/4.62 % -------------------------------------------------
% 21.73/4.62 % User time : 17.242 s
% 21.73/4.62 % System time : 0.598 s
% 21.73/4.62 % Total time : 17.840 s
% 21.73/4.62 % Maximum resident set size: 4608 pages
% 21.73/4.62 % E exiting
%------------------------------------------------------------------------------