%------------------------------------------------------------------------------
% File : Vampire---5.0.1
% Problem : LCL620^1 : TPTP v9.3.1. Released v3.6.0.
% Transfm : none
% Format : tptp:raw
% Command : run_vampire /export/starexec/sandbox/benchmark/theBenchmark.p 300 THM
% Computer : n013.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 Sep 30 08:14:28 AM UTC 2026
% Result : Theorem 0.07s 0.26s
% Output : Refutation 0.07s
% Verified :
% SZS Type : Refutation
% Derivation depth : 20
% Number of leaves : 8
% Syntax : Number of formulae : 57 ( 43 unt; 0 typ; 2 def)
% Number of atoms : 243 ( 45 equ; 0 cnn)
% Maximal formula atoms : 7 ( 4 avg)
% Number of connectives : 269 ( 47 ~; 23 |; 11 &; 182 @)
% ( 2 <=>; 0 =>; 0 <=; 0 <~>)
% Maximal formula depth : 11 ( 2 avg)
% Maximal term depth : 1 ( 1 avg)
% Number of types : 3 ( 1 usr)
% Number of type conns : 64 ( 64 >; 0 *; 0 +; 0 <<)
% Number of symbols : 39 ( 35 usr; 6 con; 0-4 aty)
% ( 4 !!; 0 ??; 0 @@+; 0 @@-)
% Number of variables : 90 ( 2 sgn 12 !; 4 ?; 90 :)
% Comments :
%------------------------------------------------------------------------------
thf(type_def_5,type,
sTfun: ( $tType * $tType ) > $tType ).
thf(type_def_6,type,
individuals: $tType ).
thf(func_def_1,type,
prop_a: $i > $o ).
thf(func_def_2,type,
prop_b: $i > $o ).
thf(func_def_3,type,
prop_c: $i > $o ).
thf(func_def_4,type,
mfalse: $i > $o ).
thf(func_def_5,type,
mtrue: $i > $o ).
thf(func_def_6,type,
mnot: ( $i > $o ) > $i > $o ).
thf(func_def_8,type,
mor: ( $i > $o ) > ( $i > $o ) > $i > $o ).
thf(func_def_9,type,
mand: ( $i > $o ) > ( $i > $o ) > $i > $o ).
thf(func_def_10,type,
mimpl: ( $i > $o ) > ( $i > $o ) > $i > $o ).
thf(func_def_11,type,
miff: ( $i > $o ) > ( $i > $o ) > $i > $o ).
thf(func_def_12,type,
mbox: ( $i > $i > $o ) > ( $i > $o ) > $i > $o ).
thf(func_def_13,type,
mdia: ( $i > $i > $o ) > ( $i > $o ) > $i > $o ).
thf(func_def_14,type,
mall: ( individuals > $i > $o ) > $i > $o ).
thf(func_def_15,type,
mexists: ( individuals > $i > $o ) > $i > $o ).
thf(func_def_16,type,
mvalid: ( $i > $o ) > $o ).
thf(func_def_17,type,
msatisfiable: ( $i > $o ) > $o ).
thf(func_def_18,type,
mcountersatisfiable: ( $i > $o ) > $o ).
thf(func_def_19,type,
minvalid: ( $i > $o ) > $o ).
thf(func_def_20,type,
db1:
!>[X0: $tType] : X0 ).
thf(func_def_21,type,
db0:
!>[X0: $tType] : X0 ).
thf(func_def_22,type,
vLAM:
!>[X0: $tType,X1: $tType] : ( X1 > X0 > X1 ) ).
thf(func_def_23,type,
vPI:
!>[X0: $tType] : ( ( X0 > $o ) > $o ) ).
thf(func_def_24,type,
vIMP: $o > $o > $o ).
thf(func_def_25,type,
db3:
!>[X0: $tType] : X0 ).
thf(func_def_26,type,
db2:
!>[X0: $tType] : X0 ).
thf(func_def_27,type,
vSIGMA:
!>[X0: $tType] : ( ( X0 > $o ) > $o ) ).
thf(func_def_30,type,
vNOT: $o > $o ).
thf(func_def_31,type,
vOR: $o > $o > $o ).
thf(func_def_32,type,
vAND: $o > $o > $o ).
thf(func_def_33,type,
sK0: $i > $o ).
thf(func_def_34,type,
sK1: $i > $o ).
thf(f3,axiom,
( mnot
= ( ^ [X0: $i > $o,X1: $i] :
~ ( X0 @ X1 ) ) ),
file('/export/starexec/sandbox/benchmark/Axioms/LCL008^0.ax',mnot) ).
thf(f4,axiom,
( mor
= ( ^ [X0: $i > $o,X1: $i > $o,X2: $i] :
( ( X1 @ X2 )
| ( X0 @ X2 ) ) ) ),
file('/export/starexec/sandbox/benchmark/Axioms/LCL008^0.ax',mor) ).
thf(f5,axiom,
( ( ^ [X0: $i > $o,X1: $i > $o,X2: $i] :
( ( X0 @ X2 )
& ( X1 @ X2 ) ) )
= mand ),
file('/export/starexec/sandbox/benchmark/Axioms/LCL008^0.ax',mand) ).
thf(f6,axiom,
( mimpl
= ( ^ [X0: $i > $o,X1: $i > $o] : ( mor @ ( mnot @ X0 ) @ X1 ) ) ),
file('/export/starexec/sandbox/benchmark/Axioms/LCL008^0.ax',mimpl) ).
thf(f12,axiom,
( ( ^ [X0: $i > $o] :
! [X1: $i] : ( X0 @ X1 ) )
= mvalid ),
file('/export/starexec/sandbox/benchmark/Axioms/LCL008^0.ax',mvalid) ).
thf(f16,conjecture,
! [X2: $i > $o,X1: $i > $o,X0: $i > $i > $o] : ( mvalid @ ( mimpl @ ( mnot @ ( mand @ X1 @ X2 ) ) @ ( mor @ ( mnot @ X1 ) @ ( mnot @ X2 ) ) ) ),
file('/export/starexec/sandbox/benchmark/theBenchmark.p',thm) ).
thf(f17,negated_conjecture,
~ ! [X2: $i > $o,X1: $i > $o,X0: $i > $i > $o] : ( mvalid @ ( mimpl @ ( mnot @ ( mand @ X1 @ X2 ) ) @ ( mor @ ( mnot @ X1 ) @ ( mnot @ X2 ) ) ) ),
inference(negated_conjecture,[status(cth)],[f16]) ).
thf(f19,plain,
( mimpl
= ( ^ [Y0: $i > $o,Y1: $i > $o] : ( mor @ ( mnot @ Y0 ) @ Y1 ) ) ),
inference(fool_elimination,[],[f6]) ).
thf(f27,plain,
( mnot
= ( ^ [X0: $i > $o,X1: $i] :
~ ( X0 @ X1 ) ) ),
inference(rectify,[],[f3]) ).
thf(f28,plain,
( mnot
= ( ^ [Y0: $i > $o,Y1: $i] :
~ ( Y0 @ Y1 ) ) ),
inference(fool_elimination,[],[f27]) ).
thf(f29,plain,
~ ! [X0: $i > $o,X1: $i > $o] : ( mvalid @ ( mimpl @ ( mnot @ ( mand @ X1 @ X0 ) ) @ ( mor @ ( mnot @ X1 ) @ ( mnot @ X0 ) ) ) ),
inference(rectify,[],[f17]) ).
thf(f30,plain,
~ ! [X1: $i > $o,X0: $i > $o] :
( ( mvalid @ ( mimpl @ ( mnot @ ( mand @ X1 @ X0 ) ) @ ( mor @ ( mnot @ X1 ) @ ( mnot @ X0 ) ) ) )
= $true ),
inference(fool_elimination,[],[f29]) ).
thf(f31,plain,
( mor
= ( ^ [X0: $i > $o,X1: $i > $o,X2: $i] :
( ( X1 @ X2 )
| ( X0 @ X2 ) ) ) ),
inference(rectify,[],[f4]) ).
thf(f32,plain,
( mor
= ( ^ [Y0: $i > $o,Y1: $i > $o,Y2: $i] :
( ( Y0 @ Y2 )
| ( Y1 @ Y2 ) ) ) ),
inference(fool_elimination,[],[f31]) ).
thf(f36,plain,
( ( ^ [X0: $i > $o] :
! [X1: $i] : ( X0 @ X1 ) )
= mvalid ),
inference(rectify,[],[f12]) ).
thf(f37,plain,
( mvalid
= ( ^ [Y0: $i > $o] :
( !! @ $i
@ ^ [Y1: $i] : ( Y0 @ Y1 ) ) ) ),
inference(fool_elimination,[],[f36]) ).
thf(f38,plain,
( ( ^ [X0: $i > $o,X1: $i > $o,X2: $i] :
( ( X0 @ X2 )
& ( X1 @ X2 ) ) )
= mand ),
inference(rectify,[],[f5]) ).
thf(f39,plain,
( mand
= ( ^ [Y0: $i > $o,Y1: $i > $o,Y2: $i] :
( ( Y1 @ Y2 )
& ( Y0 @ Y2 ) ) ) ),
inference(fool_elimination,[],[f38]) ).
thf(f46,plain,
? [X1: $i > $o,X0: $i > $o] :
( ( mvalid @ ( mimpl @ ( mnot @ ( mand @ X1 @ X0 ) ) @ ( mor @ ( mnot @ X1 ) @ ( mnot @ X0 ) ) ) )
!= $true ),
inference(ennf_transformation,[],[f30]) ).
thf(f47,plain,
? [X0: $i > $o,X1: $i > $o] :
( ( mvalid @ ( mimpl @ ( mnot @ ( mand @ X0 @ X1 ) ) @ ( mor @ ( mnot @ X0 ) @ ( mnot @ X1 ) ) ) )
!= $true ),
inference(rectify,[],[f46]) ).
thf(f48,plain,
( $true
!= ( mvalid @ ( mimpl @ ( mnot @ ( mand @ sK0 @ sK1 ) ) @ ( mor @ ( mnot @ sK0 ) @ ( mnot @ sK1 ) ) ) ) ),
inference(skolemize,[status(esa),new_symbols(skolem,[sK0,sK1]),skolemize(X0,sK0),skolemize(X1,sK1)],[f47]) ).
thf(f51,plain,
( mand
= ( ^ [Y0: $i > $o,Y1: $i > $o,Y2: $i] :
( ( Y1 @ Y2 )
& ( Y0 @ Y2 ) ) ) ),
inference(cnf_transformation,[],[f39]) ).
thf(f52,plain,
( mnot
= ( ^ [Y0: $i > $o,Y1: $i] :
~ ( Y0 @ Y1 ) ) ),
inference(cnf_transformation,[],[f28]) ).
thf(f57,plain,
( mimpl
= ( ^ [Y0: $i > $o,Y1: $i > $o] : ( mor @ ( mnot @ Y0 ) @ Y1 ) ) ),
inference(cnf_transformation,[],[f19]) ).
thf(f58,plain,
( $true
!= ( mvalid @ ( mimpl @ ( mnot @ ( mand @ sK0 @ sK1 ) ) @ ( mor @ ( mnot @ sK0 ) @ ( mnot @ sK1 ) ) ) ) ),
inference(cnf_transformation,[],[f48]) ).
thf(f59,plain,
( mvalid
= ( ^ [Y0: $i > $o] :
( !! @ $i
@ ^ [Y1: $i] : ( Y0 @ Y1 ) ) ) ),
inference(cnf_transformation,[],[f37]) ).
thf(f62,plain,
( mor
= ( ^ [Y0: $i > $o,Y1: $i > $o,Y2: $i] :
( ( Y0 @ Y2 )
| ( Y1 @ Y2 ) ) ) ),
inference(cnf_transformation,[],[f32]) ).
thf(f67,plain,
( mimpl
= ( ^ [Y0: $i > $o,Y1: $i > $o] :
( ^ [Y2: $i > $o,Y3: $i > $o,Y4: $i] :
( ( Y2 @ Y4 )
| ( Y3 @ Y4 ) )
@ ( ^ [Y2: $i > $o,Y3: $i] :
~ ( Y2 @ Y3 )
@ Y0 )
@ Y1 ) ) ),
inference(definition_unfolding,[],[f57,f62,f52]) ).
thf(f69,plain,
( ( ^ [Y0: $i > $o] :
( !! @ $i
@ ^ [Y1: $i] : ( Y0 @ Y1 ) )
@ ( ^ [Y0: $i > $o,Y1: $i > $o] :
( ^ [Y2: $i > $o,Y3: $i > $o,Y4: $i] :
( ( Y2 @ Y4 )
| ( Y3 @ Y4 ) )
@ ( ^ [Y2: $i > $o,Y3: $i] :
~ ( Y2 @ Y3 )
@ Y0 )
@ Y1 )
@ ( ^ [Y0: $i > $o,Y1: $i] :
~ ( Y0 @ Y1 )
@ ( ^ [Y0: $i > $o,Y1: $i > $o,Y2: $i] :
( ( Y1 @ Y2 )
& ( Y0 @ Y2 ) )
@ sK0
@ sK1 ) )
@ ( ^ [Y0: $i > $o,Y1: $i > $o,Y2: $i] :
( ( Y0 @ Y2 )
| ( Y1 @ Y2 ) )
@ ( ^ [Y0: $i > $o,Y1: $i] :
~ ( Y0 @ Y1 )
@ sK0 )
@ ( ^ [Y0: $i > $o,Y1: $i] :
~ ( Y0 @ Y1 )
@ sK1 ) ) ) )
!= $true ),
inference(definition_unfolding,[],[f58,f59,f67,f52,f51,f62,f52,f52]) ).
thf(f70,plain,
( ( !! @ $i
@ ^ [Y0: $i] :
( ~ ~ ( ( sK1 @ Y0 )
& ( sK0 @ Y0 ) )
| ~ ( sK0 @ Y0 )
| ~ ( sK1 @ Y0 ) ) )
!= $true ),
inference(beta-eta_normalization,[],[f69]) ).
thf(f71,plain,
( $false
= ( ^ [Y0: $i] :
( ~ ~ ( ( sK1 @ Y0 )
& ( sK0 @ Y0 ) )
| ~ ( sK0 @ Y0 )
| ~ ( sK1 @ Y0 ) )
@ sK2 ) ),
inference(sigma_proxy_clausification,[],[f70]) ).
thf(f72,plain,
( ( ~ ~ ( ( sK1 @ sK2 )
& ( sK0 @ sK2 ) )
| ~ ( sK0 @ sK2 )
| ~ ( sK1 @ sK2 ) )
= $false ),
inference(beta-eta_normalization,[],[f71]) ).
thf(f73,plain,
( $false
= ( ~ ( sK0 @ sK2 )
| ~ ( sK1 @ sK2 ) ) ),
inference(or_proxy_clausification,[],[f72]) ).
thf(f74,plain,
( $false
= ( ~ ~ ( ( sK1 @ sK2 )
& ( sK0 @ sK2 ) ) ) ),
inference(or_proxy_clausification,[],[f72]) ).
thf(f75,plain,
( ( ~ ( ( sK1 @ sK2 )
& ( sK0 @ sK2 ) ) )
= $true ),
inference(not_proxy_clausification,[],[f74]) ).
thf(f76,plain,
( ( ( sK1 @ sK2 )
& ( sK0 @ sK2 ) )
= $false ),
inference(not_proxy_clausification,[],[f75]) ).
thf(f77,plain,
( ( ( sK0 @ sK2 )
= $false )
| ( $false
= ( sK1 @ sK2 ) ) ),
inference(and_proxy_clausification,[],[f76]) ).
thf(f78,plain,
( $false
= ( ~ ( sK1 @ sK2 ) ) ),
inference(or_proxy_clausification,[],[f73]) ).
thf(f79,plain,
( ( ~ ( sK0 @ sK2 ) )
= $false ),
inference(or_proxy_clausification,[],[f73]) ).
thf(f80,plain,
( ( sK0 @ sK2 )
= $true ),
inference(not_proxy_clausification,[],[f79]) ).
thf(f81,plain,
( ( sK1 @ sK2 )
= $true ),
inference(not_proxy_clausification,[],[f78]) ).
thf(f83,definition,
( spl3_1
<=> ( ( sK0 @ sK2 )
= $false ) ),
introduced(definition,[new_symbols(definition,[spl3_1])],[avatar_definition]) ).
thf(f85,plain,
( ( ( sK0 @ sK2 )
= $false )
| ~ spl3_1 ),
inference(avatar_component_clause,[],[f83]) ).
thf(f87,definition,
( spl3_2
<=> ( $false
= ( sK1 @ sK2 ) ) ),
introduced(definition,[new_symbols(definition,[spl3_2])],[avatar_definition]) ).
thf(f89,plain,
( ( $false
= ( sK1 @ sK2 ) )
| ~ spl3_2 ),
inference(avatar_component_clause,[],[f87]) ).
thf(f90,plain,
( spl3_1
| spl3_2 ),
inference(avatar_split_clause,[],[f77,f87,f83]) ).
thf(f91,plain,
( ( $false = $true )
| ~ spl3_2 ),
inference(forward_demodulation,[],[f89,f81]) ).
thf(f92,plain,
( $false
| ~ spl3_2 ),
inference(trivial_inequality_removal,[],[f91]) ).
thf(f93,plain,
~ spl3_2,
inference(avatar_contradiction_clause,[],[f92]) ).
thf(f94,plain,
( ( $false = $true )
| ~ spl3_1 ),
inference(forward_demodulation,[],[f85,f80]) ).
thf(f95,plain,
( $false
| ~ spl3_1 ),
inference(trivial_inequality_removal,[],[f94]) ).
thf(f96,plain,
~ spl3_1,
inference(avatar_contradiction_clause,[],[f95]) ).
cnf(s1,plain,
( spl3_1
| spl3_2 ),
inference(sat_conversion,[],[f90]) ).
cnf(s2,plain,
~ spl3_2,
inference(sat_conversion,[],[f93]) ).
cnf(s3,plain,
~ spl3_1,
inference(sat_conversion,[],[f96]) ).
cnf(s4,plain,
$false,
inference(rat,[],[s1,s2,s3]) ).
thf(f98,plain,
$false,
inference(avatar_sat_refutation,[],[s4]) ).
%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.00/0.03 % Problem : LCL620^1 : TPTP v9.3.1. Released v3.6.0.
% 0.00/0.06 % Command : run_vampire /export/starexec/sandbox/benchmark/theBenchmark.p 300 THM
% 0.07/0.19 % Computer : n013.cluster.edu
% 0.07/0.19 % Model : x86_64 x86_64
% 0.07/0.19 % CPU : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.07/0.19 % Memory : 8046.5625MB
% 0.07/0.19 % OS : Linux 6.8.0-71-generic
% 0.07/0.19 % CPULimit : 300
% 0.07/0.19 % WCLimit : 300
% 0.07/0.19 % DateTime : Tue Sep 29 09:25:52 UTC 2026
% 0.07/0.19 % CPUTime :
% 0.07/0.19 Running run_vampire /export/starexec/sandbox/benchmark/theBenchmark.p 300 THM
% 0.07/0.22 Running higher-order theorem proving
% 0.07/0.23 Running: /export/starexec/sandbox/solver/bin/vampire-ho --input_syntax tptp --output_axiom_names on --mode casc -m 16384 --cores 7 -t 300 /export/starexec/sandbox/benchmark/theBenchmark.p
% 0.07/0.26 % (1853580)Detected a higher-order problem, will run a greedy HOL sequence.
% 0.07/0.26 % (1853585)lrs+10_40_drc=off:e2e=on:si=on:uwa=one_side_interpreted:random_seed=2790293074:s2a=on:i=87:rtra=on:ntd=on_2999 on theBenchmark for (2999ds/87Mi)
% 0.07/0.26 % (1853585) found proof, printing to "/export/starexec/sandbox/tmp/vampire-proof-1853580-1853585"...
% 0.07/0.26 % (1853585)...printing done.
% 0.07/0.26 % (1853585)Refutation found. Thanks to Tanya!
% 0.07/0.26 % SZS status Theorem for theBenchmark
% 0.07/0.26 % SZS output start Proof for theBenchmark
% See solution above
% 0.07/0.26 % (1853585)------------------------------
% 0.07/0.26 % (1853585)Version: Vampire 5.0.1 (Release build, commit 5ef7c2677 on 2026-07-16 16:54:09 +0200)
% 0.07/0.26 % (1853585)Linked with Z3 4.14.0.0 3c47fd96cf5645d0c42b2c819d9e9a84380aa721 z3-4.8.4-9178-g3c47fd96c
% 0.07/0.26 % (1853585)CaDiCaL version: 2.1.3
% 0.07/0.26 % (1853585)Termination reason: Refutation
% 0.07/0.26 % (1853585)Time elapsed: 0.002 s
% 0.07/0.26 % (1853585)Peak memory usage: 12 MB
% 0.07/0.26 % (1853585)Instructions burned: 6 (million)
% 0.07/0.26 % (1853580)Success in time 0.017 s
% 0.07/0.26 % Vampire exiting
%------------------------------------------------------------------------------