%------------------------------------------------------------------------------
% File : LEO-II---2.3.1
% Problem : SEU564^2 : TPTP v9.3.1. Released v3.7.0.
% Transfm : none
% Format : tptp:raw
% Command : leo --cores 7 --timeout 300 --proofoutput 1 --foatp e --atp e=/export/starexec/sandbox2/solver/bin/eprover /export/starexec/sandbox2/benchmark/theBenchmark.p
% Computer : n002.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 10:45:09 AM UTC 2026
% Result : Theorem 0.13s 0.24s
% Output : CNFRefutation 0.13s
% Verified :
% SZS Type : Refutation
% Derivation depth : 13
% Number of leaves : 2
% Syntax : Number of formulae : 21 ( 18 unt; 0 typ; 1 def)
% Number of atoms : 86 ( 21 equ; 0 cnn)
% Maximal formula atoms : 3 ( 4 avg)
% Number of connectives : 112 ( 5 ~; 4 |; 0 &; 84 @)
% ( 0 <=>; 19 =>; 0 <=; 0 <~>)
% Maximal formula depth : 8 ( 2 avg)
% Number of types : 2 ( 0 usr)
% Number of type conns : 0 ( 0 >; 0 *; 0 +; 0 <<)
% Number of symbols : 8 ( 5 usr; 5 con; 0-2 aty)
% Number of variables : 25 ( 2 ^; 23 !; 0 ?; 25 :)
% Comments :
%------------------------------------------------------------------------------
thf(tp_in,type,
in: $i > $i > $o ).
thf(tp_sK1_SY0,type,
sK1_SY0: $i ).
thf(tp_sK2_SY10,type,
sK2_SY10: $i ).
thf(tp_sK3_SY13,type,
sK3_SY13: $i ).
thf(tp_subset,type,
subset: $i > $i > $o ).
thf(subset,definition,
( subset
= ( ^ [A: $i,B: $i] :
! [Xx: $i] :
( ( in @ Xx @ A )
=> ( in @ Xx @ B ) ) ) ),
file('/export/starexec/sandbox2/benchmark/theBenchmark.p',subset) ).
thf(1,conjecture,
! [A: $i,B: $i,Xx: $i] :
( ( subset @ A @ B )
=> ( ( in @ Xx @ A )
=> ( in @ Xx @ B ) ) ),
file('/export/starexec/sandbox2/benchmark/theBenchmark.p',subsetE) ).
thf(2,negated_conjecture,
( ( ! [A: $i,B: $i,Xx: $i] :
( ( subset @ A @ B )
=> ( ( in @ Xx @ A )
=> ( in @ Xx @ B ) ) ) )
= $false ),
inference(negate_conjecture,[status(cth)],[1]) ).
thf(3,plain,
( ( ! [SY0: $i,SY1: $i,SY2: $i] :
( ! [SY5: $i] :
( ( in @ SY5 @ SY0 )
=> ( in @ SY5 @ SY1 ) )
=> ( ( in @ SY2 @ SY0 )
=> ( in @ SY2 @ SY1 ) ) ) )
= $false ),
inference(unfold_def,[status(thm)],[2,subset]) ).
thf(4,plain,
( ( ! [SY10: $i,SY11: $i] :
( ! [SY12: $i] :
( ( in @ SY12 @ sK1_SY0 )
=> ( in @ SY12 @ SY10 ) )
=> ( ( in @ SY11 @ sK1_SY0 )
=> ( in @ SY11 @ SY10 ) ) ) )
= $false ),
inference(extcnf_forall_neg,[status(esa)],[3]) ).
thf(5,plain,
( ( ! [SY13: $i] :
( ! [SY14: $i] :
( ( in @ SY14 @ sK1_SY0 )
=> ( in @ SY14 @ sK2_SY10 ) )
=> ( ( in @ SY13 @ sK1_SY0 )
=> ( in @ SY13 @ sK2_SY10 ) ) ) )
= $false ),
inference(extcnf_forall_neg,[status(esa)],[4]) ).
thf(6,plain,
( ( ! [SY14: $i] :
( ( in @ SY14 @ sK1_SY0 )
=> ( in @ SY14 @ sK2_SY10 ) )
=> ( ( in @ sK3_SY13 @ sK1_SY0 )
=> ( in @ sK3_SY13 @ sK2_SY10 ) ) )
= $false ),
inference(extcnf_forall_neg,[status(esa)],[5]) ).
thf(7,plain,
( ( ! [SY14: $i] :
( ( in @ SY14 @ sK1_SY0 )
=> ( in @ SY14 @ sK2_SY10 ) ) )
= $true ),
inference(standard_cnf,[status(thm)],[6]) ).
thf(8,plain,
( ( in @ sK3_SY13 @ sK1_SY0 )
= $true ),
inference(standard_cnf,[status(thm)],[6]) ).
thf(9,plain,
( ( in @ sK3_SY13 @ sK2_SY10 )
= $false ),
inference(standard_cnf,[status(thm)],[6]) ).
thf(10,plain,
( ( ~ ( in @ sK3_SY13 @ sK2_SY10 ) )
= $true ),
inference(polarity_switch,[status(thm)],[9]) ).
thf(11,plain,
( ( in @ sK3_SY13 @ sK1_SY0 )
= $true ),
inference(copy,[status(thm)],[8]) ).
thf(12,plain,
( ( ! [SY14: $i] :
( ( in @ SY14 @ sK1_SY0 )
=> ( in @ SY14 @ sK2_SY10 ) ) )
= $true ),
inference(copy,[status(thm)],[7]) ).
thf(13,plain,
( ( ~ ( in @ sK3_SY13 @ sK2_SY10 ) )
= $true ),
inference(copy,[status(thm)],[10]) ).
thf(14,plain,
( ( ! [SX0: $i] :
( ~ ( in @ SX0 @ sK1_SY0 )
| ( in @ SX0 @ sK2_SY10 ) ) )
= $true ),
inference(unfold_def,[status(thm)],[12,subset]) ).
thf(15,plain,
( ( in @ sK3_SY13 @ sK2_SY10 )
= $false ),
inference(extcnf_not_pos,[status(thm)],[13]) ).
thf(16,plain,
! [SV1: $i] :
( ( ~ ( in @ SV1 @ sK1_SY0 )
| ( in @ SV1 @ sK2_SY10 ) )
= $true ),
inference(extcnf_forall_pos,[status(thm)],[14]) ).
thf(17,plain,
! [SV1: $i] :
( ( ( ~ ( in @ SV1 @ sK1_SY0 ) )
= $true )
| ( ( in @ SV1 @ sK2_SY10 )
= $true ) ),
inference(extcnf_or_pos,[status(thm)],[16]) ).
thf(18,plain,
! [SV1: $i] :
( ( ( in @ SV1 @ sK1_SY0 )
= $false )
| ( ( in @ SV1 @ sK2_SY10 )
= $true ) ),
inference(extcnf_not_pos,[status(thm)],[17]) ).
thf(19,plain,
$false = $true,
inference(fo_atp_e,[status(thm)],[11,18,15]) ).
thf(20,plain,
$false,
inference(solved_all_splits,[solved_all_splits(join,[])],[19]) ).
%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.00/0.03 % Problem : SEU564^2 : TPTP v9.3.1. Released v3.7.0.
% 0.00/0.04 % Command : leo --cores 7 --timeout 300 --proofoutput 1 --foatp e --atp e=/export/starexec/sandbox2/solver/bin/eprover /export/starexec/sandbox2/benchmark/theBenchmark.p
% 0.13/0.20 % Computer : n002.cluster.edu
% 0.13/0.20 % Model : x86_64 x86_64
% 0.13/0.20 % CPU : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.13/0.20 % Memory : 8046.5625MB
% 0.13/0.20 % OS : Linux 6.8.0-71-generic
% 0.13/0.20 % CPULimit : 300
% 0.13/0.20 % WCLimit : 300
% 0.13/0.20 % DateTime : Tue Oct 6 15:30:57 UTC 2026
% 0.13/0.20 % CPUTime :
% 0.13/0.20 Running leo --cores 7 --timeout 300 --proofoutput 1 --foatp e --atp e=/export/starexec/sandbox2/solver/bin/eprover /export/starexec/sandbox2/benchmark/theBenchmark.p
% 0.13/0.24
% 0.13/0.24 No.of.Axioms: 0
% 0.13/0.24
% 0.13/0.24 Length.of.Defs: 159
% 0.13/0.24
% 0.13/0.24 Contains.Choice.Funs: false
% 0.13/0.24
% 0.13/0.24 ********************************
% 0.13/0.24 * All subproblems solved! *
% 0.13/0.24 ********************************
% 0.13/0.24 % SZS status Theorem for /export/starexec/sandbox2/benchmark/theBenchmark.p : (rf:1,axioms:2,ps:0,u:6,ude:true,rLeibEQ:true,rAndEQ:true,use_choice:true,use_extuni:true,use_extcnf_combined:false,expand_extuni:false,foatp:e,atp_timeout:25,atp_calls_frequency:5,ordering:none,proof_output:1,protocol_output:false,clause_count:19,loop_count:0,foatp_calls:1,translation:fof_full)
% 0.13/0.24
% 0.13/0.24 %**** Beginning of derivation protocol ****
% 0.13/0.24 % SZS output start CNFRefutation
% See solution above
% 0.13/0.24
% 0.13/0.24 %**** End of derivation protocol ****
% 0.13/0.24 %**** no. of clauses in derivation: 20 ****
% 0.13/0.24 %**** clause counter: 19 ****
% 0.13/0.24
% 0.13/0.24 % SZS status Theorem for /export/starexec/sandbox2/benchmark/theBenchmark.p : (rf:1,axioms:2,ps:0,u:6,ude:true,rLeibEQ:true,rAndEQ:true,use_choice:true,use_extuni:true,use_extcnf_combined:false,expand_extuni:false,foatp:e,atp_timeout:25,atp_calls_frequency:5,ordering:none,proof_output:1,protocol_output:false,clause_count:19,loop_count:0,foatp_calls:1,translation:fof_full)
%------------------------------------------------------------------------------