%------------------------------------------------------------------------------
% File : LEO-II---2.3.1
% Problem : SEV397^5 : 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 : n010.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 10:50:02 AM UTC 2026
% Result : Theorem 0.10s 0.19s
% Output : CNFRefutation 0.10s
% Verified :
% SZS Type : Refutation
% Derivation depth : 17
% Number of leaves : 1
% Syntax : Number of formulae : 53 ( 31 unt; 0 typ; 0 def)
% Number of atoms : 339 ( 72 equ; 0 cnn)
% Maximal formula atoms : 7 ( 6 avg)
% Number of connectives : 414 ( 80 ~; 112 |; 20 &; 192 @)
% ( 4 <=>; 6 =>; 0 <=; 0 <~>)
% Maximal formula depth : 6 ( 1 avg)
% Number of types : 2 ( 1 usr)
% Number of type conns : 0 ( 0 >; 0 *; 0 +; 0 <<)
% Number of symbols : 7 ( 4 usr; 3 con; 0-2 aty)
% Number of variables : 3 ( 0 ^; 3 !; 0 ?; 3 :)
% Comments :
%------------------------------------------------------------------------------
thf(tp_a,type,
a: $tType ).
thf(tp_cX,type,
cX: a > $o ).
thf(tp_cY,type,
cY: a > $o ).
thf(tp_cZ,type,
cZ: a > $o ).
thf(tp_sK1_Xx,type,
sK1_Xx: a ).
thf(1,conjecture,
! [Xx: a] :
( ( ( ( cX @ Xx )
& ( cY @ Xx ) )
| ( cZ @ Xx ) )
<=> ( ( ( cX @ Xx )
| ( cZ @ Xx ) )
& ( ( cY @ Xx )
| ( cZ @ Xx ) ) ) ),
file('/export/starexec/sandbox/benchmark/theBenchmark.p',cTHM59_pme) ).
thf(2,negated_conjecture,
( ( ! [Xx: a] :
( ( ( ( cX @ Xx )
& ( cY @ Xx ) )
| ( cZ @ Xx ) )
<=> ( ( ( cX @ Xx )
| ( cZ @ Xx ) )
& ( ( cY @ Xx )
| ( cZ @ Xx ) ) ) ) )
= $false ),
inference(negate_conjecture,[status(cth)],[1]) ).
thf(3,plain,
( ( ! [Xx: a] :
( ( ( ( cX @ Xx )
& ( cY @ Xx ) )
| ( cZ @ Xx ) )
<=> ( ( ( cX @ Xx )
| ( cZ @ Xx ) )
& ( ( cY @ Xx )
| ( cZ @ Xx ) ) ) ) )
= $false ),
inference(unfold_def,[status(thm)],[2]) ).
thf(4,plain,
( ( ( ( ( cX @ sK1_Xx )
& ( cY @ sK1_Xx ) )
| ( cZ @ sK1_Xx ) )
<=> ( ( ( cX @ sK1_Xx )
| ( cZ @ sK1_Xx ) )
& ( ( cY @ sK1_Xx )
| ( cZ @ sK1_Xx ) ) ) )
= $false ),
inference(extcnf_forall_neg,[status(esa)],[3]) ).
thf(5,plain,
( ( ( ( ( cX @ sK1_Xx )
& ( cY @ sK1_Xx ) )
| ( cZ @ sK1_Xx ) )
=> ( ( ( cX @ sK1_Xx )
| ( cZ @ sK1_Xx ) )
& ( ( cY @ sK1_Xx )
| ( cZ @ sK1_Xx ) ) ) )
= $false ),
inference(split_conjecture,[split_conjecture(split,[])],[4]) ).
thf(6,plain,
( ( ( ( ( cX @ sK1_Xx )
| ( cZ @ sK1_Xx ) )
& ( ( cY @ sK1_Xx )
| ( cZ @ sK1_Xx ) ) )
=> ( ( ( cX @ sK1_Xx )
& ( cY @ sK1_Xx ) )
| ( cZ @ sK1_Xx ) ) )
= $false ),
inference(split_conjecture,[split_conjecture(split,[])],[4]) ).
thf(7,plain,
( ( ~ ( ( ( ( cX @ sK1_Xx )
& ( cY @ sK1_Xx ) )
| ( cZ @ sK1_Xx ) )
=> ( ( ( cX @ sK1_Xx )
| ( cZ @ sK1_Xx ) )
& ( ( cY @ sK1_Xx )
| ( cZ @ sK1_Xx ) ) ) ) )
= $true ),
inference(polarity_switch,[status(thm)],[5]) ).
thf(8,plain,
( ( ~ ( ( ( ( cX @ sK1_Xx )
| ( cZ @ sK1_Xx ) )
& ( ( cY @ sK1_Xx )
| ( cZ @ sK1_Xx ) ) )
=> ( ( ( cX @ sK1_Xx )
& ( cY @ sK1_Xx ) )
| ( cZ @ sK1_Xx ) ) ) )
= $true ),
inference(polarity_switch,[status(thm)],[6]) ).
thf(9,plain,
( ( ~ ( ( ( ( cX @ sK1_Xx )
& ( cY @ sK1_Xx ) )
| ( cZ @ sK1_Xx ) )
=> ( ( ( cX @ sK1_Xx )
| ( cZ @ sK1_Xx ) )
& ( ( cY @ sK1_Xx )
| ( cZ @ sK1_Xx ) ) ) ) )
= $true ),
inference(copy,[status(thm)],[7]) ).
thf(10,plain,
( ( ~ ( ~ ( ~ ( ~ ( cX @ sK1_Xx )
| ~ ( cY @ sK1_Xx ) )
| ( cZ @ sK1_Xx ) )
| ~ ( ~ ( ( cX @ sK1_Xx )
| ( cZ @ sK1_Xx ) )
| ~ ( ( cY @ sK1_Xx )
| ( cZ @ sK1_Xx ) ) ) ) )
= $true ),
inference(unfold_def,[status(thm)],[9]) ).
thf(11,plain,
( ( ~ ( ~ ( ~ ( cX @ sK1_Xx )
| ~ ( cY @ sK1_Xx ) )
| ( cZ @ sK1_Xx ) )
| ~ ( ~ ( ( cX @ sK1_Xx )
| ( cZ @ sK1_Xx ) )
| ~ ( ( cY @ sK1_Xx )
| ( cZ @ sK1_Xx ) ) ) )
= $false ),
inference(extcnf_not_pos,[status(thm)],[10]) ).
thf(12,plain,
( ( ~ ( ~ ( ~ ( cX @ sK1_Xx )
| ~ ( cY @ sK1_Xx ) )
| ( cZ @ sK1_Xx ) ) )
= $false ),
inference(extcnf_or_neg,[status(thm)],[11]) ).
thf(13,plain,
( ( ~ ( ~ ( ( cX @ sK1_Xx )
| ( cZ @ sK1_Xx ) )
| ~ ( ( cY @ sK1_Xx )
| ( cZ @ sK1_Xx ) ) ) )
= $false ),
inference(extcnf_or_neg,[status(thm)],[11]) ).
thf(14,plain,
( ( ~ ( ~ ( cX @ sK1_Xx )
| ~ ( cY @ sK1_Xx ) )
| ( cZ @ sK1_Xx ) )
= $true ),
inference(extcnf_not_neg,[status(thm)],[12]) ).
thf(15,plain,
( ( ~ ( ( cX @ sK1_Xx )
| ( cZ @ sK1_Xx ) )
| ~ ( ( cY @ sK1_Xx )
| ( cZ @ sK1_Xx ) ) )
= $true ),
inference(extcnf_not_neg,[status(thm)],[13]) ).
thf(16,plain,
( ( ( ~ ( ~ ( cX @ sK1_Xx )
| ~ ( cY @ sK1_Xx ) ) )
= $true )
| ( ( cZ @ sK1_Xx )
= $true ) ),
inference(extcnf_or_pos,[status(thm)],[14]) ).
thf(17,plain,
( ( ( ~ ( ( cX @ sK1_Xx )
| ( cZ @ sK1_Xx ) ) )
= $true )
| ( ( ~ ( ( cY @ sK1_Xx )
| ( cZ @ sK1_Xx ) ) )
= $true ) ),
inference(extcnf_or_pos,[status(thm)],[15]) ).
thf(18,plain,
( ( ( ~ ( cX @ sK1_Xx )
| ~ ( cY @ sK1_Xx ) )
= $false )
| ( ( cZ @ sK1_Xx )
= $true ) ),
inference(extcnf_not_pos,[status(thm)],[16]) ).
thf(19,plain,
( ( ( ( cX @ sK1_Xx )
| ( cZ @ sK1_Xx ) )
= $false )
| ( ( ~ ( ( cY @ sK1_Xx )
| ( cZ @ sK1_Xx ) ) )
= $true ) ),
inference(extcnf_not_pos,[status(thm)],[17]) ).
thf(20,plain,
( ( ( ~ ( cX @ sK1_Xx ) )
= $false )
| ( ( cZ @ sK1_Xx )
= $true ) ),
inference(extcnf_or_neg,[status(thm)],[18]) ).
thf(21,plain,
( ( ( ~ ( cY @ sK1_Xx ) )
= $false )
| ( ( cZ @ sK1_Xx )
= $true ) ),
inference(extcnf_or_neg,[status(thm)],[18]) ).
thf(22,plain,
( ( ( cX @ sK1_Xx )
= $false )
| ( ( ~ ( ( cY @ sK1_Xx )
| ( cZ @ sK1_Xx ) ) )
= $true ) ),
inference(extcnf_or_neg,[status(thm)],[19]) ).
thf(23,plain,
( ( ( cZ @ sK1_Xx )
= $false )
| ( ( ~ ( ( cY @ sK1_Xx )
| ( cZ @ sK1_Xx ) ) )
= $true ) ),
inference(extcnf_or_neg,[status(thm)],[19]) ).
thf(24,plain,
( ( ( cX @ sK1_Xx )
= $true )
| ( ( cZ @ sK1_Xx )
= $true ) ),
inference(extcnf_not_neg,[status(thm)],[20]) ).
thf(25,plain,
( ( ( cY @ sK1_Xx )
= $true )
| ( ( cZ @ sK1_Xx )
= $true ) ),
inference(extcnf_not_neg,[status(thm)],[21]) ).
thf(26,plain,
( ( ( ( cY @ sK1_Xx )
| ( cZ @ sK1_Xx ) )
= $false )
| ( ( cX @ sK1_Xx )
= $false ) ),
inference(extcnf_not_pos,[status(thm)],[22]) ).
thf(27,plain,
( ( ( ( cY @ sK1_Xx )
| ( cZ @ sK1_Xx ) )
= $false )
| ( ( cZ @ sK1_Xx )
= $false ) ),
inference(extcnf_not_pos,[status(thm)],[23]) ).
thf(28,plain,
( ( ( cY @ sK1_Xx )
= $false )
| ( ( cX @ sK1_Xx )
= $false ) ),
inference(extcnf_or_neg,[status(thm)],[26]) ).
thf(29,plain,
( ( ( cZ @ sK1_Xx )
= $false )
| ( ( cX @ sK1_Xx )
= $false ) ),
inference(extcnf_or_neg,[status(thm)],[26]) ).
thf(30,plain,
( ( ( cY @ sK1_Xx )
= $false )
| ( ( cZ @ sK1_Xx )
= $false ) ),
inference(extcnf_or_neg,[status(thm)],[27]) ).
thf(31,plain,
( ( ( cZ @ sK1_Xx )
= $false )
| ( ( cZ @ sK1_Xx )
= $false ) ),
inference(extcnf_or_neg,[status(thm)],[27]) ).
thf(32,plain,
$false = $true,
inference(fo_atp_e,[status(thm)],[24,31,30,29,28,25]) ).
thf(33,plain,
( ( ~ ( ( ( ( cX @ sK1_Xx )
| ( cZ @ sK1_Xx ) )
& ( ( cY @ sK1_Xx )
| ( cZ @ sK1_Xx ) ) )
=> ( ( ( cX @ sK1_Xx )
& ( cY @ sK1_Xx ) )
| ( cZ @ sK1_Xx ) ) ) )
= $true ),
inference(copy,[status(thm)],[8]) ).
thf(34,plain,
( ( ~ ( ~ ~ ( ~ ( ( cX @ sK1_Xx )
| ( cZ @ sK1_Xx ) )
| ~ ( ( cY @ sK1_Xx )
| ( cZ @ sK1_Xx ) ) )
| ~ ( ~ ( cX @ sK1_Xx )
| ~ ( cY @ sK1_Xx ) )
| ( cZ @ sK1_Xx ) ) )
= $true ),
inference(unfold_def,[status(thm)],[33]) ).
thf(35,plain,
( ( ~ ~ ( ~ ( ( cX @ sK1_Xx )
| ( cZ @ sK1_Xx ) )
| ~ ( ( cY @ sK1_Xx )
| ( cZ @ sK1_Xx ) ) )
| ~ ( ~ ( cX @ sK1_Xx )
| ~ ( cY @ sK1_Xx ) )
| ( cZ @ sK1_Xx ) )
= $false ),
inference(extcnf_not_pos,[status(thm)],[34]) ).
thf(36,plain,
( ( ~ ~ ( ~ ( ( cX @ sK1_Xx )
| ( cZ @ sK1_Xx ) )
| ~ ( ( cY @ sK1_Xx )
| ( cZ @ sK1_Xx ) ) ) )
= $false ),
inference(extcnf_or_neg,[status(thm)],[35]) ).
thf(37,plain,
( ( ~ ( ~ ( cX @ sK1_Xx )
| ~ ( cY @ sK1_Xx ) )
| ( cZ @ sK1_Xx ) )
= $false ),
inference(extcnf_or_neg,[status(thm)],[35]) ).
thf(38,plain,
( ( ~ ( ~ ( ( cX @ sK1_Xx )
| ( cZ @ sK1_Xx ) )
| ~ ( ( cY @ sK1_Xx )
| ( cZ @ sK1_Xx ) ) ) )
= $true ),
inference(extcnf_not_neg,[status(thm)],[36]) ).
thf(39,plain,
( ( ~ ( ~ ( cX @ sK1_Xx )
| ~ ( cY @ sK1_Xx ) ) )
= $false ),
inference(extcnf_or_neg,[status(thm)],[37]) ).
thf(40,plain,
( ( cZ @ sK1_Xx )
= $false ),
inference(extcnf_or_neg,[status(thm)],[37]) ).
thf(41,plain,
( ( ~ ( ( cX @ sK1_Xx )
| ( cZ @ sK1_Xx ) )
| ~ ( ( cY @ sK1_Xx )
| ( cZ @ sK1_Xx ) ) )
= $false ),
inference(extcnf_not_pos,[status(thm)],[38]) ).
thf(42,plain,
( ( ~ ( cX @ sK1_Xx )
| ~ ( cY @ sK1_Xx ) )
= $true ),
inference(extcnf_not_neg,[status(thm)],[39]) ).
thf(43,plain,
( ( ~ ( ( cX @ sK1_Xx )
| ( cZ @ sK1_Xx ) ) )
= $false ),
inference(extcnf_or_neg,[status(thm)],[41]) ).
thf(44,plain,
( ( ~ ( ( cY @ sK1_Xx )
| ( cZ @ sK1_Xx ) ) )
= $false ),
inference(extcnf_or_neg,[status(thm)],[41]) ).
thf(45,plain,
( ( ( ~ ( cX @ sK1_Xx ) )
= $true )
| ( ( ~ ( cY @ sK1_Xx ) )
= $true ) ),
inference(extcnf_or_pos,[status(thm)],[42]) ).
thf(46,plain,
( ( ( cX @ sK1_Xx )
| ( cZ @ sK1_Xx ) )
= $true ),
inference(extcnf_not_neg,[status(thm)],[43]) ).
thf(47,plain,
( ( ( cY @ sK1_Xx )
| ( cZ @ sK1_Xx ) )
= $true ),
inference(extcnf_not_neg,[status(thm)],[44]) ).
thf(48,plain,
( ( ( cX @ sK1_Xx )
= $false )
| ( ( ~ ( cY @ sK1_Xx ) )
= $true ) ),
inference(extcnf_not_pos,[status(thm)],[45]) ).
thf(49,plain,
( ( ( cX @ sK1_Xx )
= $true )
| ( ( cZ @ sK1_Xx )
= $true ) ),
inference(extcnf_or_pos,[status(thm)],[46]) ).
thf(50,plain,
( ( ( cY @ sK1_Xx )
= $true )
| ( ( cZ @ sK1_Xx )
= $true ) ),
inference(extcnf_or_pos,[status(thm)],[47]) ).
thf(51,plain,
( ( ( cY @ sK1_Xx )
= $false )
| ( ( cX @ sK1_Xx )
= $false ) ),
inference(extcnf_not_pos,[status(thm)],[48]) ).
thf(52,plain,
$false = $true,
inference(fo_atp_e,[status(thm)],[40,51,50,49]) ).
thf(53,plain,
$false,
inference(solved_all_splits,[solved_all_splits(join,[])],[52,32]) ).
%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.00/0.02 % Problem : SEV397^5 : 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
% 0.10/0.15 % Computer : n010.cluster.edu
% 0.10/0.15 % Model : x86_64 x86_64
% 0.10/0.15 % CPU : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.10/0.15 % Memory : 8046.5625MB
% 0.10/0.15 % OS : Linux 6.8.0-71-generic
% 0.10/0.15 % CPULimit : 300
% 0.10/0.15 % WCLimit : 300
% 0.10/0.15 % DateTime : Tue Oct 6 15:46:40 UTC 2026
% 0.10/0.15 % CPUTime :
% 0.10/0.16 Running leo --cores 7 --timeout 300 --proofoutput 1 --foatp e --atp e=/export/starexec/sandbox/solver/bin/eprover /export/starexec/sandbox/benchmark/theBenchmark.p
% 0.10/0.19
% 0.10/0.19 No.of.Axioms: 0
% 0.10/0.19
% 0.10/0.19 Length.of.Defs: 0
% 0.10/0.19
% 0.10/0.19 Contains.Choice.Funs: false
% 0.10/0.19
% 0.10/0.19 ********************************
% 0.10/0.19 * All subproblems solved! *
% 0.10/0.19 ********************************
% 0.10/0.19 % SZS status Theorem for /export/starexec/sandbox/benchmark/theBenchmark.p : (rf:1,axioms:0,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:52,loop_count:0,foatp_calls:1,translation:fof_full)
% 0.10/0.19
% 0.10/0.19 %**** Beginning of derivation protocol ****
% 0.10/0.19 % SZS output start CNFRefutation
% See solution above
% 0.10/0.19
% 0.10/0.19 %**** End of derivation protocol ****
% 0.10/0.19 %**** no. of clauses in derivation: 53 ****
% 0.10/0.19 %**** clause counter: 52 ****
% 0.10/0.19
% 0.10/0.19 % SZS status Theorem for /export/starexec/sandbox/benchmark/theBenchmark.p : (rf:1,axioms:0,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:52,loop_count:0,foatp_calls:1,translation:fof_full)
%------------------------------------------------------------------------------