%------------------------------------------------------------------------------
% File : LEO-II---2.3.1
% Problem : SYO154^5 : 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/sandbox2/solver/bin/eprover /export/starexec/sandbox2/benchmark/theBenchmark.p
% Computer : n018.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 11:07:43 AM UTC 2026
% Result : Theorem 0.08s 0.22s
% Output : CNFRefutation 0.08s
% Verified :
% SZS Type : Refutation
% Derivation depth : 12
% Number of leaves : 1
% Syntax : Number of formulae : 27 ( 22 unt; 0 typ; 0 def)
% Number of atoms : 112 ( 29 equ; 0 cnn)
% Maximal formula atoms : 6 ( 4 avg)
% Number of connectives : 112 ( 15 ~; 8 |; 6 &; 70 @)
% ( 0 <=>; 13 =>; 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 : 9 ( 6 usr; 3 con; 0-2 aty)
% Number of variables : 29 ( 0 ^; 23 !; 6 ?; 29 :)
% Comments :
%------------------------------------------------------------------------------
thf(tp_a,type,
a: $i ).
thf(tp_cP,type,
cP: $i > $o ).
thf(tp_cQ,type,
cQ: $i > $o ).
thf(tp_cR,type,
cR: $i > $o ).
thf(tp_f,type,
f: $i > $i ).
thf(tp_g,type,
g: $i > $i ).
thf(1,conjecture,
( ( ( cP @ a )
& ! [Xx: $i] :
( ( cP @ Xx )
=> ( cQ @ ( f @ Xx ) ) )
& ! [Xy: $i] :
( ( cQ @ Xy )
=> ( cR @ ( g @ Xy ) ) ) )
=> ? [Xw: $i] : ( cR @ Xw ) ),
file('/export/starexec/sandbox2/benchmark/theBenchmark.p',cDEMO_TRIV1) ).
thf(2,negated_conjecture,
( ( ( ( cP @ a )
& ! [Xx: $i] :
( ( cP @ Xx )
=> ( cQ @ ( f @ Xx ) ) )
& ! [Xy: $i] :
( ( cQ @ Xy )
=> ( cR @ ( g @ Xy ) ) ) )
=> ? [Xw: $i] : ( cR @ Xw ) )
= $false ),
inference(negate_conjecture,[status(cth)],[1]) ).
thf(3,plain,
( ( ( ( cP @ a )
& ! [Xx: $i] :
( ( cP @ Xx )
=> ( cQ @ ( f @ Xx ) ) )
& ! [Xy: $i] :
( ( cQ @ Xy )
=> ( cR @ ( g @ Xy ) ) ) )
=> ? [Xw: $i] : ( cR @ Xw ) )
= $false ),
inference(unfold_def,[status(thm)],[2]) ).
thf(4,plain,
( ( cP @ a )
= $true ),
inference(standard_cnf,[status(thm)],[3]) ).
thf(5,plain,
( ( ! [Xx: $i] :
( ( cP @ Xx )
=> ( cQ @ ( f @ Xx ) ) ) )
= $true ),
inference(standard_cnf,[status(thm)],[3]) ).
thf(6,plain,
( ( ! [Xy: $i] :
( ( cQ @ Xy )
=> ( cR @ ( g @ Xy ) ) ) )
= $true ),
inference(standard_cnf,[status(thm)],[3]) ).
thf(7,plain,
( ( ? [Xw: $i] : ( cR @ Xw ) )
= $false ),
inference(standard_cnf,[status(thm)],[3]) ).
thf(8,plain,
( ( ~ ? [Xw: $i] : ( cR @ Xw ) )
= $true ),
inference(polarity_switch,[status(thm)],[7]) ).
thf(9,plain,
( ( ! [Xy: $i] :
( ( cQ @ Xy )
=> ( cR @ ( g @ Xy ) ) ) )
= $true ),
inference(copy,[status(thm)],[6]) ).
thf(10,plain,
( ( ! [Xx: $i] :
( ( cP @ Xx )
=> ( cQ @ ( f @ Xx ) ) ) )
= $true ),
inference(copy,[status(thm)],[5]) ).
thf(11,plain,
( ( cP @ a )
= $true ),
inference(copy,[status(thm)],[4]) ).
thf(12,plain,
( ( ~ ? [Xw: $i] : ( cR @ Xw ) )
= $true ),
inference(copy,[status(thm)],[8]) ).
thf(13,plain,
( ( ~ ~ ! [SX0: $i] :
~ ( cR @ SX0 ) )
= $true ),
inference(unfold_def,[status(thm)],[12]) ).
thf(14,plain,
( ( ! [SX0: $i] :
( ~ ( cQ @ SX0 )
| ( cR @ ( g @ SX0 ) ) ) )
= $true ),
inference(unfold_def,[status(thm)],[9]) ).
thf(15,plain,
( ( ! [SX0: $i] :
( ~ ( cP @ SX0 )
| ( cQ @ ( f @ SX0 ) ) ) )
= $true ),
inference(unfold_def,[status(thm)],[10]) ).
thf(16,plain,
( ( ~ ! [SX0: $i] :
~ ( cR @ SX0 ) )
= $false ),
inference(extcnf_not_pos,[status(thm)],[13]) ).
thf(17,plain,
! [SV1: $i] :
( ( ~ ( cQ @ SV1 )
| ( cR @ ( g @ SV1 ) ) )
= $true ),
inference(extcnf_forall_pos,[status(thm)],[14]) ).
thf(18,plain,
! [SV2: $i] :
( ( ~ ( cP @ SV2 )
| ( cQ @ ( f @ SV2 ) ) )
= $true ),
inference(extcnf_forall_pos,[status(thm)],[15]) ).
thf(19,plain,
( ( ! [SX0: $i] :
~ ( cR @ SX0 ) )
= $true ),
inference(extcnf_not_neg,[status(thm)],[16]) ).
thf(20,plain,
! [SV1: $i] :
( ( ( ~ ( cQ @ SV1 ) )
= $true )
| ( ( cR @ ( g @ SV1 ) )
= $true ) ),
inference(extcnf_or_pos,[status(thm)],[17]) ).
thf(21,plain,
! [SV2: $i] :
( ( ( ~ ( cP @ SV2 ) )
= $true )
| ( ( cQ @ ( f @ SV2 ) )
= $true ) ),
inference(extcnf_or_pos,[status(thm)],[18]) ).
thf(22,plain,
! [SV3: $i] :
( ( ~ ( cR @ SV3 ) )
= $true ),
inference(extcnf_forall_pos,[status(thm)],[19]) ).
thf(23,plain,
! [SV1: $i] :
( ( ( cQ @ SV1 )
= $false )
| ( ( cR @ ( g @ SV1 ) )
= $true ) ),
inference(extcnf_not_pos,[status(thm)],[20]) ).
thf(24,plain,
! [SV2: $i] :
( ( ( cP @ SV2 )
= $false )
| ( ( cQ @ ( f @ SV2 ) )
= $true ) ),
inference(extcnf_not_pos,[status(thm)],[21]) ).
thf(25,plain,
! [SV3: $i] :
( ( cR @ SV3 )
= $false ),
inference(extcnf_not_pos,[status(thm)],[22]) ).
thf(26,plain,
$false = $true,
inference(fo_atp_e,[status(thm)],[11,25,24,23]) ).
thf(27,plain,
$false,
inference(solved_all_splits,[solved_all_splits(join,[])],[26]) ).
%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.00/0.03 % Problem : SYO154^5 : 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/sandbox2/solver/bin/eprover /export/starexec/sandbox2/benchmark/theBenchmark.p
% 0.08/0.19 % Computer : n018.cluster.edu
% 0.08/0.19 % Model : x86_64 x86_64
% 0.08/0.19 % CPU : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.08/0.19 % Memory : 8046.5625MB
% 0.08/0.19 % OS : Linux 6.8.0-71-generic
% 0.08/0.19 % CPULimit : 300
% 0.08/0.19 % WCLimit : 300
% 0.08/0.19 % DateTime : Tue Oct 6 17:35:22 UTC 2026
% 0.08/0.19 % CPUTime :
% 0.08/0.20 Running leo --cores 7 --timeout 300 --proofoutput 1 --foatp e --atp e=/export/starexec/sandbox2/solver/bin/eprover /export/starexec/sandbox2/benchmark/theBenchmark.p
% 0.08/0.22
% 0.08/0.22 No.of.Axioms: 0
% 0.08/0.22
% 0.08/0.22 Length.of.Defs: 0
% 0.08/0.22
% 0.08/0.22 Contains.Choice.Funs: false
% 0.08/0.22
% 0.08/0.22 ********************************
% 0.08/0.22 * All subproblems solved! *
% 0.08/0.22 ********************************
% 0.08/0.22 % SZS status Theorem for /export/starexec/sandbox2/benchmark/theBenchmark.p : (rf:1,axioms:3,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:26,loop_count:0,foatp_calls:1,translation:fof_full)
% 0.08/0.22
% 0.08/0.22 %**** Beginning of derivation protocol ****
% 0.08/0.22 % SZS output start CNFRefutation
% See solution above
% 0.08/0.22
% 0.08/0.22 %**** End of derivation protocol ****
% 0.08/0.22 %**** no. of clauses in derivation: 27 ****
% 0.08/0.22 %**** clause counter: 26 ****
% 0.08/0.22
% 0.08/0.22 % SZS status Theorem for /export/starexec/sandbox2/benchmark/theBenchmark.p : (rf:1,axioms:3,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:26,loop_count:0,foatp_calls:1,translation:fof_full)
%------------------------------------------------------------------------------