%------------------------------------------------------------------------------
% File : LEO-II---2.3.1
% Problem : SYO199^5 : TPTP v9.3.1. Released v4.0.0.
% Transfm : none
% Format : tptp:raw
% Command : leo --cores 7 --timeout 300 --proofoutput 1 --foatp e --atp e=/export/starexec/sandbox/solver/bin/eprover /export/starexec/sandbox/benchmark/theBenchmark.p
% Computer : n001.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 : Wed Oct 7 11:07:48 AM UTC 2026
% Result : Theorem 0.10s 0.21s
% Output : CNFRefutation 0.10s
% Verified :
% SZS Type : Refutation
% Derivation depth : 13
% Number of leaves : 1
% Syntax : Number of formulae : 30 ( 12 unt; 0 typ; 0 def)
% Number of atoms : 140 ( 45 equ; 0 cnn)
% Maximal formula atoms : 2 ( 4 avg)
% Number of connectives : 131 ( 51 ~; 24 |; 4 &; 52 @)
% ( 0 <=>; 0 =>; 0 <=; 0 <~>)
% Maximal formula depth : 6 ( 2 avg)
% Number of types : 1 ( 0 usr)
% Number of type conns : 10 ( 10 >; 0 *; 0 +; 0 <<)
% Number of symbols : 5 ( 2 usr; 2 con; 0-2 aty)
% Number of variables : 38 ( 20 ^; 14 !; 4 ?; 38 :)
% Comments :
%------------------------------------------------------------------------------
thf(tp_sK1_Xy,type,
sK1_Xy: ( $o > $o ) > $o ).
thf(tp_sK2_Xx,type,
sK2_Xx: ( $o > $o ) > $o ).
thf(1,conjecture,
? [Xp: $o > $o] :
! [Xx: $o,Xy: $o] :
( ( Xp @ Xx )
& ( Xp @ Xy ) ),
file('/export/starexec/sandbox/benchmark/theBenchmark.p',cCT7) ).
thf(2,negated_conjecture,
( ( ? [Xp: $o > $o] :
! [Xx: $o,Xy: $o] :
( ( Xp @ Xx )
& ( Xp @ Xy ) ) )
= $false ),
inference(negate_conjecture,[status(cth)],[1]) ).
thf(3,plain,
( ( ? [Xp: $o > $o] :
! [Xx: $o,Xy: $o] :
( ( Xp @ Xx )
& ( Xp @ Xy ) ) )
= $false ),
inference(unfold_def,[status(thm)],[2]) ).
thf(4,plain,
( ( ~ ? [Xp: $o > $o] :
! [Xx: $o,Xy: $o] :
( ( Xp @ Xx )
& ( Xp @ Xy ) ) )
= $true ),
inference(polarity_switch,[status(thm)],[3]) ).
thf(5,plain,
( ( ! [Xp: $o > $o] :
( ~ ( Xp @ ( sK2_Xx @ Xp ) )
| ~ ( Xp @ ( sK1_Xy @ Xp ) ) ) )
= $true ),
inference(extcnf_combined,[status(esa)],[4]) ).
thf(6,plain,
( ( ! [Xp: $o > $o] :
( ~ ( Xp @ ( sK2_Xx @ Xp ) )
| ~ ( Xp @ ( sK1_Xy @ Xp ) ) ) )
= $true ),
inference(copy,[status(thm)],[5]) ).
thf(7,plain,
! [SV1: $o > $o] :
( ( ~ ( SV1 @ ( sK2_Xx @ SV1 ) )
| ~ ( SV1 @ ( sK1_Xy @ SV1 ) ) )
= $true ),
inference(extcnf_forall_special_pos,[status(thm)],[6]) ).
thf(8,plain,
( ( ~ $true
| ~ $true )
= $true ),
inference(extcnf_forall_special_pos,[status(thm)],[6]) ).
thf(9,plain,
( ( ~ $false
| ~ $false )
= $true ),
inference(extcnf_forall_special_pos,[status(thm)],[6]) ).
thf(10,plain,
( ( ~ ( sK2_Xx
@ ^ [SX0: $o] : SX0 )
| ~ ( sK1_Xy
@ ^ [SX0: $o] : SX0 ) )
= $true ),
inference(extcnf_forall_special_pos,[status(thm)],[6]) ).
thf(11,plain,
( ( ~ ~ ( sK2_Xx
@ ^ [SX0: $o] : ~ SX0 )
| ~ ~ ( sK1_Xy
@ ^ [SX0: $o] : ~ SX0 ) )
= $true ),
inference(extcnf_forall_special_pos,[status(thm)],[6]) ).
thf(12,plain,
! [SV1: $o > $o] :
( ( ( ~ ( SV1 @ ( sK2_Xx @ SV1 ) ) )
= $true )
| ( ( ~ ( SV1 @ ( sK1_Xy @ SV1 ) ) )
= $true ) ),
inference(extcnf_or_pos,[status(thm)],[7]) ).
thf(13,plain,
( ( ( ~ $true ) = $true )
| ( ( ~ $true ) = $true ) ),
inference(extcnf_or_pos,[status(thm)],[8]) ).
thf(14,plain,
( ( ( ~ $false ) = $true )
| ( ( ~ $false ) = $true ) ),
inference(extcnf_or_pos,[status(thm)],[9]) ).
thf(15,plain,
( ( ( ~ ( sK2_Xx
@ ^ [SX0: $o] : SX0 ) )
= $true )
| ( ( ~ ( sK1_Xy
@ ^ [SX0: $o] : SX0 ) )
= $true ) ),
inference(extcnf_or_pos,[status(thm)],[10]) ).
thf(16,plain,
( ( ( ~ ~ ( sK2_Xx
@ ^ [SX0: $o] : ~ SX0 ) )
= $true )
| ( ( ~ ~ ( sK1_Xy
@ ^ [SX0: $o] : ~ SX0 ) )
= $true ) ),
inference(extcnf_or_pos,[status(thm)],[11]) ).
thf(17,plain,
! [SV1: $o > $o] :
( ( ( SV1 @ ( sK2_Xx @ SV1 ) )
= $false )
| ( ( ~ ( SV1 @ ( sK1_Xy @ SV1 ) ) )
= $true ) ),
inference(extcnf_not_pos,[status(thm)],[12]) ).
thf(18,plain,
( ( $true = $false )
| ( ( ~ $true ) = $true ) ),
inference(extcnf_not_pos,[status(thm)],[13]) ).
thf(19,plain,
( ( $false = $false )
| ( ( ~ $false ) = $true ) ),
inference(extcnf_not_pos,[status(thm)],[14]) ).
thf(20,plain,
( ( ( sK2_Xx
@ ^ [SX0: $o] : SX0 )
= $false )
| ( ( ~ ( sK1_Xy
@ ^ [SX0: $o] : SX0 ) )
= $true ) ),
inference(extcnf_not_pos,[status(thm)],[15]) ).
thf(21,plain,
( ( ( ~ ( sK2_Xx
@ ^ [SX0: $o] : ~ SX0 ) )
= $false )
| ( ( ~ ~ ( sK1_Xy
@ ^ [SX0: $o] : ~ SX0 ) )
= $true ) ),
inference(extcnf_not_pos,[status(thm)],[16]) ).
thf(22,plain,
! [SV1: $o > $o] :
( ( ( SV1 @ ( sK1_Xy @ SV1 ) )
= $false )
| ( ( SV1 @ ( sK2_Xx @ SV1 ) )
= $false ) ),
inference(extcnf_not_pos,[status(thm)],[17]) ).
thf(23,plain,
( ( $true = $false )
| ( $true = $false ) ),
inference(extcnf_not_pos,[status(thm)],[18]) ).
thf(24,plain,
( ( $false = $false )
| ( $false = $false ) ),
inference(extcnf_not_pos,[status(thm)],[19]) ).
thf(25,plain,
( ( ( sK1_Xy
@ ^ [SX0: $o] : SX0 )
= $false )
| ( ( sK2_Xx
@ ^ [SX0: $o] : SX0 )
= $false ) ),
inference(extcnf_not_pos,[status(thm)],[20]) ).
thf(26,plain,
( ( ( sK2_Xx
@ ^ [SX0: $o] : ~ SX0 )
= $true )
| ( ( ~ ~ ( sK1_Xy
@ ^ [SX0: $o] : ~ SX0 ) )
= $true ) ),
inference(extcnf_not_neg,[status(thm)],[21]) ).
thf(27,plain,
( ( ( ~ ( sK1_Xy
@ ^ [SX0: $o] : ~ SX0 ) )
= $false )
| ( ( sK2_Xx
@ ^ [SX0: $o] : ~ SX0 )
= $true ) ),
inference(extcnf_not_pos,[status(thm)],[26]) ).
thf(28,plain,
( ( ( sK1_Xy
@ ^ [SX0: $o] : ~ SX0 )
= $true )
| ( ( sK2_Xx
@ ^ [SX0: $o] : ~ SX0 )
= $true ) ),
inference(extcnf_not_neg,[status(thm)],[27]) ).
thf(29,plain,
$false = $true,
inference(fo_atp_e,[status(thm)],[22,28,25,24,23]) ).
thf(30,plain,
$false,
inference(solved_all_splits,[solved_all_splits(join,[])],[29]) ).
%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.00/0.03 % Problem : SYO199^5 : TPTP v9.3.1. Released v4.0.0.
% 0.00/0.04 % Command : leo --cores 7 --timeout 300 --proofoutput 1 --foatp e --atp e=/export/starexec/sandbox/solver/bin/eprover /export/starexec/sandbox/benchmark/theBenchmark.p
% 0.10/0.18 % Computer : n001.cluster.edu
% 0.10/0.18 % Model : x86_64 x86_64
% 0.10/0.18 % CPU : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.10/0.18 % Memory : 8046.5625MB
% 0.10/0.18 % OS : Linux 6.8.0-71-generic
% 0.10/0.18 % CPULimit : 300
% 0.10/0.18 % WCLimit : 300
% 0.10/0.18 % DateTime : Tue Oct 6 17:39:24 UTC 2026
% 0.10/0.18 % CPUTime :
% 0.10/0.18 Running leo --cores 7 --timeout 300 --proofoutput 1 --foatp e --atp e=/export/starexec/sandbox/solver/bin/eprover /export/starexec/sandbox/benchmark/theBenchmark.p
% 0.10/0.21
% 0.10/0.21 No.of.Axioms: 0
% 0.10/0.21
% 0.10/0.21 Length.of.Defs: 0
% 0.10/0.21
% 0.10/0.21 Contains.Choice.Funs: false
% 0.10/0.21
% 0.10/0.21 ********************************
% 0.10/0.21 * All subproblems solved! *
% 0.10/0.21 ********************************
% 0.10/0.21 % SZS status Theorem for /export/starexec/sandbox/benchmark/theBenchmark.p : (rf:0,axioms:0,ps:3,u:6,ude:true,rLeibEQ:true,rAndEQ:true,use_choice:true,use_extuni:true,use_extcnf_combined:true,expand_extuni:false,foatp:e,atp_timeout:15,atp_calls_frequency:5,ordering:none,proof_output:1,protocol_output:false,clause_count:29,loop_count:0,foatp_calls:1,translation:fof_full)
% 0.10/0.21
% 0.10/0.21 %**** Beginning of derivation protocol ****
% 0.10/0.21 % SZS output start CNFRefutation
% See solution above
% 0.10/0.21
% 0.10/0.21 %**** End of derivation protocol ****
% 0.10/0.21 %**** no. of clauses in derivation: 30 ****
% 0.10/0.21 %**** clause counter: 29 ****
% 0.10/0.21
% 0.10/0.21 % SZS status Theorem for /export/starexec/sandbox/benchmark/theBenchmark.p : (rf:0,axioms:0,ps:3,u:6,ude:true,rLeibEQ:true,rAndEQ:true,use_choice:true,use_extuni:true,use_extcnf_combined:true,expand_extuni:false,foatp:e,atp_timeout:15,atp_calls_frequency:5,ordering:none,proof_output:1,protocol_output:false,clause_count:29,loop_count:0,foatp_calls:1,translation:fof_full)
%------------------------------------------------------------------------------