%------------------------------------------------------------------------------
% File : LEO-II---2.3.1
% Problem : SYO038-1.003.003 : TPTP v9.3.1. Released v5.3.0.
% 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 : 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 11:07:25 AM UTC 2026
% Result : Unsatisfiable 0.06s 0.22s
% Output : CNFRefutation 0.06s
% Verified :
% SZS Type : Refutation
% Derivation depth : 7
% Number of leaves : 7
% Syntax : Number of formulae : 34 ( 31 unt; 0 typ; 0 def)
% Number of atoms : 96 ( 41 equ; 0 cnn)
% Maximal formula atoms : 2 ( 2 avg)
% Number of connectives : 150 ( 10 ~; 6 |; 0 &; 134 @)
% ( 0 <=>; 0 =>; 0 <=; 0 <~>)
% Maximal formula depth : 7 ( 2 avg)
% Number of types : 2 ( 0 usr)
% Number of type conns : 0 ( 0 >; 0 *; 0 +; 0 <<)
% Number of symbols : 7 ( 4 usr; 3 con; 0-2 aty)
% Number of variables : 24 ( 0 ^; 24 !; 0 ?; 24 :)
% Comments :
%------------------------------------------------------------------------------
thf(tp_d,type,
d: $i > $o ).
thf(tp_f,type,
f: $i > $i > $i ).
thf(tp_one,type,
one: $i ).
thf(tp_s,type,
s: $i > $i ).
thf(1,axiom,
! [X: $i] :
( ~ ( d @ X )
| ( d @ ( s @ X ) ) ),
file('/export/starexec/sandbox/benchmark/theBenchmark.p',ax5) ).
thf(2,axiom,
d @ one,
file('/export/starexec/sandbox/benchmark/theBenchmark.p',ax4) ).
thf(3,axiom,
! [N: $i,X: $i] :
( ( f @ ( s @ N ) @ ( s @ X ) )
= ( f @ N @ ( f @ ( s @ N ) @ X ) ) ),
file('/export/starexec/sandbox/benchmark/theBenchmark.p',ax3) ).
thf(4,axiom,
! [X: $i] :
( ( f @ one @ ( s @ X ) )
= ( s @ ( s @ ( f @ one @ X ) ) ) ),
file('/export/starexec/sandbox/benchmark/theBenchmark.p',ax2) ).
thf(5,axiom,
! [N: $i] :
( ( f @ N @ one )
= ( s @ one ) ),
file('/export/starexec/sandbox/benchmark/theBenchmark.p',ax1) ).
thf(6,conjecture,
$false,
file('no conjecture given, we try to refute the axioms',dummy_conjecture) ).
thf(7,negated_conjecture,
$false = $false,
inference(negate_conjecture,[status(cth)],[6]) ).
thf(8,negated_conjecture,
~ ( d @ ( f @ ( s @ ( s @ one ) ) @ ( s @ ( s @ one ) ) ) ),
file('/export/starexec/sandbox/benchmark/theBenchmark.p',conj) ).
thf(9,plain,
$false = $false,
inference(unfold_def,[status(thm)],[7]) ).
thf(10,plain,
( ( ! [X: $i] :
( ~ ( d @ X )
| ( d @ ( s @ X ) ) ) )
= $true ),
inference(unfold_def,[status(thm)],[1]) ).
thf(11,plain,
( ( d @ one )
= $true ),
inference(unfold_def,[status(thm)],[2]) ).
thf(12,plain,
( ( ! [N: $i,X: $i] :
( ( f @ ( s @ N ) @ ( s @ X ) )
= ( f @ N @ ( f @ ( s @ N ) @ X ) ) ) )
= $true ),
inference(unfold_def,[status(thm)],[3]) ).
thf(13,plain,
( ( ! [X: $i] :
( ( f @ one @ ( s @ X ) )
= ( s @ ( s @ ( f @ one @ X ) ) ) ) )
= $true ),
inference(unfold_def,[status(thm)],[4]) ).
thf(14,plain,
( ( ! [N: $i] :
( ( f @ N @ one )
= ( s @ one ) ) )
= $true ),
inference(unfold_def,[status(thm)],[5]) ).
thf(15,plain,
( ( ~ ( d @ ( f @ ( s @ ( s @ one ) ) @ ( s @ ( s @ one ) ) ) ) )
= $true ),
inference(unfold_def,[status(thm)],[8]) ).
thf(16,plain,
( ( ~ $false ) = $true ),
inference(polarity_switch,[status(thm)],[9]) ).
thf(17,plain,
( ( ~ ( d @ ( f @ ( s @ ( s @ one ) ) @ ( s @ ( s @ one ) ) ) ) )
= $true ),
inference(copy,[status(thm)],[15]) ).
thf(18,plain,
( ( ! [N: $i] :
( ( f @ N @ one )
= ( s @ one ) ) )
= $true ),
inference(copy,[status(thm)],[14]) ).
thf(19,plain,
( ( ! [X: $i] :
( ( f @ one @ ( s @ X ) )
= ( s @ ( s @ ( f @ one @ X ) ) ) ) )
= $true ),
inference(copy,[status(thm)],[13]) ).
thf(20,plain,
( ( ! [N: $i,X: $i] :
( ( f @ ( s @ N ) @ ( s @ X ) )
= ( f @ N @ ( f @ ( s @ N ) @ X ) ) ) )
= $true ),
inference(copy,[status(thm)],[12]) ).
thf(21,plain,
( ( d @ one )
= $true ),
inference(copy,[status(thm)],[11]) ).
thf(22,plain,
( ( ! [X: $i] :
( ~ ( d @ X )
| ( d @ ( s @ X ) ) ) )
= $true ),
inference(copy,[status(thm)],[10]) ).
thf(23,plain,
( ( ~ $false ) = $true ),
inference(copy,[status(thm)],[16]) ).
thf(24,plain,
( ( d @ ( f @ ( s @ ( s @ one ) ) @ ( s @ ( s @ one ) ) ) )
= $false ),
inference(extcnf_not_pos,[status(thm)],[17]) ).
thf(25,plain,
! [SV1: $i] :
( ( ( f @ SV1 @ one )
= ( s @ one ) )
= $true ),
inference(extcnf_forall_pos,[status(thm)],[18]) ).
thf(26,plain,
! [SV2: $i] :
( ( ( f @ one @ ( s @ SV2 ) )
= ( s @ ( s @ ( f @ one @ SV2 ) ) ) )
= $true ),
inference(extcnf_forall_pos,[status(thm)],[19]) ).
thf(27,plain,
! [SV3: $i] :
( ( ! [SY5: $i] :
( ( f @ ( s @ SV3 ) @ ( s @ SY5 ) )
= ( f @ SV3 @ ( f @ ( s @ SV3 ) @ SY5 ) ) ) )
= $true ),
inference(extcnf_forall_pos,[status(thm)],[20]) ).
thf(28,plain,
! [SV4: $i] :
( ( ~ ( d @ SV4 )
| ( d @ ( s @ SV4 ) ) )
= $true ),
inference(extcnf_forall_pos,[status(thm)],[22]) ).
thf(29,plain,
$false = $false,
inference(extcnf_not_pos,[status(thm)],[23]) ).
thf(30,plain,
! [SV5: $i,SV3: $i] :
( ( ( f @ ( s @ SV3 ) @ ( s @ SV5 ) )
= ( f @ SV3 @ ( f @ ( s @ SV3 ) @ SV5 ) ) )
= $true ),
inference(extcnf_forall_pos,[status(thm)],[27]) ).
thf(31,plain,
! [SV4: $i] :
( ( ( ~ ( d @ SV4 ) )
= $true )
| ( ( d @ ( s @ SV4 ) )
= $true ) ),
inference(extcnf_or_pos,[status(thm)],[28]) ).
thf(32,plain,
! [SV4: $i] :
( ( ( d @ SV4 )
= $false )
| ( ( d @ ( s @ SV4 ) )
= $true ) ),
inference(extcnf_not_pos,[status(thm)],[31]) ).
thf(33,plain,
$false = $true,
inference(fo_atp_e,[status(thm)],[21,32,30,29,26,25,24]) ).
thf(34,plain,
$false,
inference(solved_all_splits,[solved_all_splits(join,[])],[33]) ).
%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.00/0.03 % Problem : SYO038-1.003.003 : TPTP v9.3.1. Released v5.3.0.
% 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
% 0.06/0.17 % Computer : n002.cluster.edu
% 0.06/0.17 % Model : x86_64 x86_64
% 0.06/0.17 % CPU : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.06/0.17 % Memory : 8046.5625MB
% 0.06/0.17 % OS : Linux 6.8.0-71-generic
% 0.06/0.17 % CPULimit : 300
% 0.06/0.17 % WCLimit : 300
% 0.06/0.17 % DateTime : Tue Oct 6 17:33:42 UTC 2026
% 0.06/0.17 % CPUTime :
% 0.06/0.17 Running leo --cores 7 --timeout 300 --proofoutput 1 --foatp e --atp e=/export/starexec/sandbox/solver/bin/eprover /export/starexec/sandbox/benchmark/theBenchmark.p
% 0.06/0.22
% 0.06/0.22 No.of.Axioms: 6
% 0.06/0.22
% 0.06/0.22 Length.of.Defs: 0
% 0.06/0.22
% 0.06/0.22 Contains.Choice.Funs: false
% 0.06/0.22
% 0.06/0.22 ********************************
% 0.06/0.22 * All subproblems solved! *
% 0.06/0.22 ********************************
% 0.06/0.22 % SZS status Unsatisfiable for /export/starexec/sandbox/benchmark/theBenchmark.p : (rf:0,axioms:6,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:74,atp_calls_frequency:5,ordering:none,proof_output:1,protocol_output:false,clause_count:33,loop_count:0,foatp_calls:1,translation:fof_experiment)
% 0.06/0.22
% 0.06/0.22 %**** Beginning of derivation protocol ****
% 0.06/0.22 % SZS output start CNFRefutation
% See solution above
% 0.06/0.22
% 0.06/0.22 %**** End of derivation protocol ****
% 0.06/0.22 %**** no. of clauses in derivation: 34 ****
% 0.06/0.22 %**** clause counter: 33 ****
% 0.06/0.22
% 0.06/0.22 % SZS status Unsatisfiable for /export/starexec/sandbox/benchmark/theBenchmark.p : (rf:0,axioms:6,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:74,atp_calls_frequency:5,ordering:none,proof_output:1,protocol_output:false,clause_count:33,loop_count:0,foatp_calls:1,translation:fof_experiment)
%------------------------------------------------------------------------------