%------------------------------------------------------------------------------
% File : Vampire-SAT---5.0.1
% Problem : NLP267^2 : TPTP v9.3.1. Released v8.1.0.
% Transfm : none
% Format : tptp:raw
% Command : run_vampire /export/starexec/sandbox2/benchmark/theBenchmark.p 300 SAT
% Computer : n014.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 08:16:36 AM UTC 2026
% Result : Theorem 0.20s 0.28s
% Output : Refutation 0.20s
% Verified :
% SZS Type : Refutation
% Derivation depth : 20
% Number of leaves : 9
% Syntax : Number of formulae : 76 ( 51 unt; 0 typ; 1 def)
% Number of atoms : 415 ( 79 equ; 0 cnn)
% Maximal formula atoms : 10 ( 5 avg)
% Number of connectives : 387 ( 12 ~; 22 |; 10 &; 303 @)
% ( 1 <=>; 29 =>; 0 <=; 0 <~>)
% Maximal formula depth : 8 ( 2 avg)
% Maximal term depth : 1 ( 1 avg)
% Number of types : 3 ( 1 usr)
% Number of type conns : 35 ( 35 >; 0 *; 0 +; 0 <<)
% Number of symbols : 34 ( 30 usr; 9 con; 0-4 aty)
% ( 10 !!; 0 ??; 0 @@+; 0 @@-)
% Number of variables : 80 ( 0 sgn 13 !; 0 ?; 80 :)
% Comments :
%------------------------------------------------------------------------------
thf(type_def_5,type,
mworld: $tType ).
thf(type_def_6,type,
sTfun: ( $tType * $tType ) > $tType ).
thf(func_def_0,type,
mrel: mworld > mworld > $o ).
thf(func_def_1,type,
mactual: mworld ).
thf(func_def_2,type,
mlocal: ( mworld > $o ) > $o ).
thf(func_def_4,type,
mnot: ( mworld > $o ) > mworld > $o ).
thf(func_def_5,type,
mand: ( mworld > $o ) > ( mworld > $o ) > mworld > $o ).
thf(func_def_6,type,
mor: ( mworld > $o ) > ( mworld > $o ) > mworld > $o ).
thf(func_def_7,type,
mimplies: ( mworld > $o ) > ( mworld > $o ) > mworld > $o ).
thf(func_def_8,type,
mequiv: ( mworld > $o ) > ( mworld > $o ) > mworld > $o ).
thf(func_def_9,type,
mbox: ( mworld > $o ) > mworld > $o ).
thf(func_def_10,type,
mdia: ( mworld > $o ) > mworld > $o ).
thf(func_def_16,type,
price: $i > mworld > $o ).
thf(func_def_17,type,
dest: $i > mworld > $o ).
thf(func_def_18,type,
class: $i > mworld > $o ).
thf(func_def_19,type,
db0:
!>[X0: $tType] : X0 ).
thf(func_def_20,type,
vLAM:
!>[X0: $tType,X1: $tType] : ( X1 > X0 > X1 ) ).
thf(func_def_21,type,
vNOT: $o > $o ).
thf(func_def_22,type,
db1:
!>[X0: $tType] : X0 ).
thf(func_def_23,type,
vAND: $o > $o > $o ).
thf(func_def_24,type,
db2:
!>[X0: $tType] : X0 ).
thf(func_def_25,type,
vOR: $o > $o > $o ).
thf(func_def_26,type,
vIMP: $o > $o > $o ).
thf(func_def_27,type,
vIFF: $o > $o > $o ).
thf(func_def_28,type,
vPI:
!>[X0: $tType] : ( ( X0 > $o ) > $o ) ).
thf(func_def_29,type,
vSIGMA:
!>[X0: $tType] : ( ( X0 > $o ) > $o ) ).
thf(func_def_32,type,
sK0: mworld ).
thf(f1,axiom,
( mlocal
= ( ^ [X0: mworld > $o] : ( X0 @ mactual ) ) ),
file('/export/starexec/sandbox2/benchmark/theBenchmark.p',mlocal_def) ).
thf(f3,axiom,
( mand
= ( ^ [X0: mworld > $o,X1: mworld > $o,X2: mworld] :
( ( X1 @ X2 )
& ( X0 @ X2 ) ) ) ),
file('/export/starexec/sandbox2/benchmark/theBenchmark.p',mand_def) ).
thf(f5,axiom,
( mimplies
= ( ^ [X0: mworld > $o,X1: mworld > $o,X2: mworld] :
( ( X0 @ X2 )
=> ( X1 @ X2 ) ) ) ),
file('/export/starexec/sandbox2/benchmark/theBenchmark.p',mimplies_def) ).
thf(f7,axiom,
( mbox
= ( ^ [X0: mworld > $o,X1: mworld] :
! [X2: mworld] :
( ( mrel @ X1 @ X2 )
=> ( X0 @ X2 ) ) ) ),
file('/export/starexec/sandbox2/benchmark/theBenchmark.p',mbox_def) ).
thf(f11,axiom,
mlocal @ ( mbox @ ( mimplies @ ( mand @ ( dest @ paris ) @ ( class @ second ) ) @ ( price @ seventy ) ) ),
file('/export/starexec/sandbox2/benchmark/theBenchmark.p',law2) ).
thf(f14,axiom,
mlocal @ ( mbox @ ( dest @ paris ) ),
file('/export/starexec/sandbox2/benchmark/theBenchmark.p',belief1) ).
thf(f15,axiom,
mlocal @ ( mbox @ ( class @ second ) ),
file('/export/starexec/sandbox2/benchmark/theBenchmark.p',belief2) ).
thf(f16,conjecture,
mlocal @ ( mbox @ ( price @ seventy ) ),
file('/export/starexec/sandbox2/benchmark/theBenchmark.p',con) ).
thf(f17,negated_conjecture,
~ ( mlocal @ ( mbox @ ( price @ seventy ) ) ),
inference(negated_conjecture,[status(cth)],[f16]) ).
thf(f18,plain,
( mlocal
= ( ^ [Y0: mworld > $o] : ( Y0 @ mactual ) ) ),
inference(fool_elimination,[],[f1]) ).
thf(f21,plain,
( mand
= ( ^ [X0: mworld > $o,X1: mworld > $o,X2: mworld] :
( ( X1 @ X2 )
& ( X0 @ X2 ) ) ) ),
inference(rectify,[],[f3]) ).
thf(f22,plain,
( mand
= ( ^ [Y0: mworld > $o,Y1: mworld > $o,Y2: mworld] :
( ( Y0 @ Y2 )
& ( Y1 @ Y2 ) ) ) ),
inference(fool_elimination,[],[f21]) ).
thf(f25,plain,
( mimplies
= ( ^ [X0: mworld > $o,X1: mworld > $o,X2: mworld] :
( ( X0 @ X2 )
=> ( X1 @ X2 ) ) ) ),
inference(rectify,[],[f5]) ).
thf(f26,plain,
( mimplies
= ( ^ [Y0: mworld > $o,Y1: mworld > $o,Y2: mworld] :
( ( Y0 @ Y2 )
=> ( Y1 @ Y2 ) ) ) ),
inference(fool_elimination,[],[f25]) ).
thf(f29,plain,
( mbox
= ( ^ [X0: mworld > $o,X1: mworld] :
! [X2: mworld] :
( ( mrel @ X1 @ X2 )
=> ( X0 @ X2 ) ) ) ),
inference(rectify,[],[f7]) ).
thf(f30,plain,
( mbox
= ( ^ [Y0: mworld > $o,Y1: mworld] :
( !! @ mworld
@ ^ [Y2: mworld] :
( ( mrel @ Y1 @ Y2 )
=> ( Y0 @ Y2 ) ) ) ) ),
inference(fool_elimination,[],[f29]) ).
thf(f37,plain,
mlocal @ ( mbox @ ( mimplies @ ( mand @ ( dest @ paris ) @ ( class @ second ) ) @ ( price @ seventy ) ) ),
inference(rectify,[],[f11]) ).
thf(f38,plain,
( ( mlocal @ ( mbox @ ( mimplies @ ( mand @ ( dest @ paris ) @ ( class @ second ) ) @ ( price @ seventy ) ) ) )
= $true ),
inference(fool_elimination,[],[f37]) ).
thf(f43,plain,
mlocal @ ( mbox @ ( dest @ paris ) ),
inference(rectify,[],[f14]) ).
thf(f44,plain,
( ( mlocal @ ( mbox @ ( dest @ paris ) ) )
= $true ),
inference(fool_elimination,[],[f43]) ).
thf(f45,plain,
mlocal @ ( mbox @ ( class @ second ) ),
inference(rectify,[],[f15]) ).
thf(f46,plain,
( ( mlocal @ ( mbox @ ( class @ second ) ) )
= $true ),
inference(fool_elimination,[],[f45]) ).
thf(f47,plain,
~ ( mlocal @ ( mbox @ ( price @ seventy ) ) ),
inference(rectify,[],[f17]) ).
thf(f48,plain,
( ( mlocal @ ( mbox @ ( price @ seventy ) ) )
!= $true ),
inference(fool_elimination,[],[f47]) ).
thf(f49,plain,
( ( mlocal @ ( mbox @ ( price @ seventy ) ) )
!= $true ),
inference(flattening,[],[f48]) ).
thf(f50,plain,
( mlocal
= ( ^ [Y0: mworld > $o] : ( Y0 @ mactual ) ) ),
inference(cnf_transformation,[],[f18]) ).
thf(f52,plain,
( mand
= ( ^ [Y0: mworld > $o,Y1: mworld > $o,Y2: mworld] :
( ( Y0 @ Y2 )
& ( Y1 @ Y2 ) ) ) ),
inference(cnf_transformation,[],[f22]) ).
thf(f54,plain,
( mimplies
= ( ^ [Y0: mworld > $o,Y1: mworld > $o,Y2: mworld] :
( ( Y0 @ Y2 )
=> ( Y1 @ Y2 ) ) ) ),
inference(cnf_transformation,[],[f26]) ).
thf(f56,plain,
( mbox
= ( ^ [Y0: mworld > $o,Y1: mworld] :
( !! @ mworld
@ ^ [Y2: mworld] :
( ( mrel @ Y1 @ Y2 )
=> ( Y0 @ Y2 ) ) ) ) ),
inference(cnf_transformation,[],[f30]) ).
thf(f60,plain,
( ( mlocal @ ( mbox @ ( mimplies @ ( mand @ ( dest @ paris ) @ ( class @ second ) ) @ ( price @ seventy ) ) ) )
= $true ),
inference(cnf_transformation,[],[f38]) ).
thf(f63,plain,
( ( mlocal @ ( mbox @ ( dest @ paris ) ) )
= $true ),
inference(cnf_transformation,[],[f44]) ).
thf(f64,plain,
( ( mlocal @ ( mbox @ ( class @ second ) ) )
= $true ),
inference(cnf_transformation,[],[f46]) ).
thf(f65,plain,
( ( mlocal @ ( mbox @ ( price @ seventy ) ) )
!= $true ),
inference(cnf_transformation,[],[f49]) ).
thf(f69,plain,
( $true
= ( ^ [Y0: mworld > $o] : ( Y0 @ mactual )
@ ( ^ [Y0: mworld > $o,Y1: mworld] :
( !! @ mworld
@ ^ [Y2: mworld] :
( ( mrel @ Y1 @ Y2 )
=> ( Y0 @ Y2 ) ) )
@ ( ^ [Y0: mworld > $o,Y1: mworld > $o,Y2: mworld] :
( ( Y0 @ Y2 )
=> ( Y1 @ Y2 ) )
@ ( ^ [Y0: mworld > $o,Y1: mworld > $o,Y2: mworld] :
( ( Y0 @ Y2 )
& ( Y1 @ Y2 ) )
@ ( dest @ paris )
@ ( class @ second ) )
@ ( price @ seventy ) ) ) ) ),
inference(definition_unfolding,[],[f60,f50,f56,f54,f52]) ).
thf(f72,plain,
( $true
= ( ^ [Y0: mworld > $o] : ( Y0 @ mactual )
@ ( ^ [Y0: mworld > $o,Y1: mworld] :
( !! @ mworld
@ ^ [Y2: mworld] :
( ( mrel @ Y1 @ Y2 )
=> ( Y0 @ Y2 ) ) )
@ ( dest @ paris ) ) ) ),
inference(definition_unfolding,[],[f63,f50,f56]) ).
thf(f73,plain,
( $true
= ( ^ [Y0: mworld > $o] : ( Y0 @ mactual )
@ ( ^ [Y0: mworld > $o,Y1: mworld] :
( !! @ mworld
@ ^ [Y2: mworld] :
( ( mrel @ Y1 @ Y2 )
=> ( Y0 @ Y2 ) ) )
@ ( class @ second ) ) ) ),
inference(definition_unfolding,[],[f64,f50,f56]) ).
thf(f74,plain,
( $true
!= ( ^ [Y0: mworld > $o] : ( Y0 @ mactual )
@ ( ^ [Y0: mworld > $o,Y1: mworld] :
( !! @ mworld
@ ^ [Y2: mworld] :
( ( mrel @ Y1 @ Y2 )
=> ( Y0 @ Y2 ) ) )
@ ( price @ seventy ) ) ) ),
inference(definition_unfolding,[],[f65,f50,f56]) ).
thf(f75,plain,
( $true
!= ( !! @ mworld
@ ^ [Y0: mworld] :
( ( mrel @ mactual @ Y0 )
=> ( price @ seventy @ Y0 ) ) ) ),
inference(beta-eta_normalization,[],[f74]) ).
thf(f76,plain,
( $false
= ( ^ [Y0: mworld] :
( ( mrel @ mactual @ Y0 )
=> ( price @ seventy @ Y0 ) )
@ sK0 ) ),
inference(sigma_proxy_clausification,[],[f75]) ).
thf(f77,plain,
( $false
= ( ( mrel @ mactual @ sK0 )
=> ( price @ seventy @ sK0 ) ) ),
inference(beta-eta_normalization,[],[f76]) ).
thf(f78,plain,
( $false
= ( price @ seventy @ sK0 ) ),
inference(imp_proxy_clausification,[],[f77]) ).
thf(f79,plain,
( $true
= ( mrel @ mactual @ sK0 ) ),
inference(imp_proxy_clausification,[],[f77]) ).
thf(f80,plain,
( $true
= ( !! @ mworld
@ ^ [Y0: mworld] :
( ( mrel @ mactual @ Y0 )
=> ( class @ second @ Y0 ) ) ) ),
inference(beta-eta_normalization,[],[f73]) ).
thf(f81,plain,
! [X1: mworld] :
( $true
= ( ^ [Y0: mworld] :
( ( mrel @ mactual @ Y0 )
=> ( class @ second @ Y0 ) )
@ X1 ) ),
inference(pi_proxy_clausification,[],[f80]) ).
thf(f82,plain,
! [X1: mworld] :
( $true
= ( ( mrel @ mactual @ X1 )
=> ( class @ second @ X1 ) ) ),
inference(beta-eta_normalization,[],[f81]) ).
thf(f83,plain,
! [X1: mworld] :
( ( $false
= ( mrel @ mactual @ X1 ) )
| ( $true
= ( class @ second @ X1 ) ) ),
inference(imp_proxy_clausification,[],[f82]) ).
thf(f84,plain,
( $true
= ( !! @ mworld
@ ^ [Y0: mworld] :
( ( mrel @ mactual @ Y0 )
=> ( dest @ paris @ Y0 ) ) ) ),
inference(beta-eta_normalization,[],[f72]) ).
thf(f85,plain,
! [X1: mworld] :
( $true
= ( ^ [Y0: mworld] :
( ( mrel @ mactual @ Y0 )
=> ( dest @ paris @ Y0 ) )
@ X1 ) ),
inference(pi_proxy_clausification,[],[f84]) ).
thf(f86,plain,
! [X1: mworld] :
( $true
= ( ( mrel @ mactual @ X1 )
=> ( dest @ paris @ X1 ) ) ),
inference(beta-eta_normalization,[],[f85]) ).
thf(f87,plain,
! [X1: mworld] :
( ( $false
= ( mrel @ mactual @ X1 ) )
| ( $true
= ( dest @ paris @ X1 ) ) ),
inference(imp_proxy_clausification,[],[f86]) ).
thf(f100,plain,
( $true
= ( !! @ mworld
@ ^ [Y0: mworld] :
( ( mrel @ mactual @ Y0 )
=> ( ( ( dest @ paris @ Y0 )
& ( class @ second @ Y0 ) )
=> ( price @ seventy @ Y0 ) ) ) ) ),
inference(beta-eta_normalization,[],[f69]) ).
thf(f101,plain,
! [X1: mworld] :
( $true
= ( ^ [Y0: mworld] :
( ( mrel @ mactual @ Y0 )
=> ( ( ( dest @ paris @ Y0 )
& ( class @ second @ Y0 ) )
=> ( price @ seventy @ Y0 ) ) )
@ X1 ) ),
inference(pi_proxy_clausification,[],[f100]) ).
thf(f102,plain,
! [X1: mworld] :
( $true
= ( ( mrel @ mactual @ X1 )
=> ( ( ( dest @ paris @ X1 )
& ( class @ second @ X1 ) )
=> ( price @ seventy @ X1 ) ) ) ),
inference(beta-eta_normalization,[],[f101]) ).
thf(f103,plain,
! [X1: mworld] :
( ( $false
= ( mrel @ mactual @ X1 ) )
| ( $true
= ( ( ( dest @ paris @ X1 )
& ( class @ second @ X1 ) )
=> ( price @ seventy @ X1 ) ) ) ),
inference(imp_proxy_clausification,[],[f102]) ).
thf(f104,plain,
! [X1: mworld] :
( ( $false
= ( mrel @ mactual @ X1 ) )
| ( $false
= ( ( dest @ paris @ X1 )
& ( class @ second @ X1 ) ) )
| ( $true
= ( price @ seventy @ X1 ) ) ),
inference(imp_proxy_clausification,[],[f103]) ).
thf(f105,plain,
! [X1: mworld] :
( ( $false
= ( mrel @ mactual @ X1 ) )
| ( $false
= ( class @ second @ X1 ) )
| ( $true
= ( price @ seventy @ X1 ) )
| ( $false
= ( dest @ paris @ X1 ) ) ),
inference(and_proxy_clausification,[],[f104]) ).
thf(f128,plain,
( ( $true = $false )
| ( $true
= ( class @ second @ sK0 ) ) ),
inference(constrained_superposition,[],[f83,f79]) ).
thf(f129,plain,
( $true
= ( class @ second @ sK0 ) ),
inference(trivial_inequality_removal,[],[f128]) ).
thf(f135,plain,
( ( $true = $false )
| ( $true
= ( dest @ paris @ sK0 ) ) ),
inference(constrained_superposition,[],[f79,f87]) ).
thf(f136,plain,
( $true
= ( dest @ paris @ sK0 ) ),
inference(trivial_inequality_removal,[],[f135]) ).
thf(f189,plain,
( ( $true = $false )
| ( $false
= ( class @ second @ sK0 ) )
| ( $true
= ( price @ seventy @ sK0 ) )
| ( $false
= ( dest @ paris @ sK0 ) ) ),
inference(constrained_superposition,[],[f79,f105]) ).
thf(f190,plain,
( ( $false
= ( class @ second @ sK0 ) )
| ( $true
= ( price @ seventy @ sK0 ) )
| ( $false
= ( dest @ paris @ sK0 ) ) ),
inference(trivial_inequality_removal,[],[f189]) ).
thf(f195,plain,
( ( $true = $false )
| ( $true
= ( price @ seventy @ sK0 ) )
| ( $false
= ( dest @ paris @ sK0 ) ) ),
inference(forward_demodulation,[],[f190,f129]) ).
thf(f196,plain,
( ( $true
= ( price @ seventy @ sK0 ) )
| ( $false
= ( dest @ paris @ sK0 ) ) ),
inference(trivial_inequality_removal,[],[f195]) ).
thf(f209,plain,
( ( $true = $false )
| ( $false
= ( dest @ paris @ sK0 ) ) ),
inference(forward_demodulation,[],[f196,f78]) ).
thf(f210,plain,
( $false
= ( dest @ paris @ sK0 ) ),
inference(trivial_inequality_removal,[],[f209]) ).
thf(f224,definition,
( spl1_7
<=> ( $false
= ( dest @ paris @ sK0 ) ) ),
introduced(definition,[new_symbols(definition,[spl1_7])],[avatar_definition]) ).
thf(f226,plain,
( ( $false
= ( dest @ paris @ sK0 ) )
| ~ spl1_7 ),
inference(avatar_component_clause,[],[f224]) ).
thf(f258,plain,
spl1_7,
inference(avatar_split_clause,[],[f210,f224]) ).
thf(f259,plain,
( ( $true = $false )
| ~ spl1_7 ),
inference(constrained_superposition,[],[f226,f136]) ).
thf(f265,plain,
( $false
| ~ spl1_7 ),
inference(trivial_inequality_removal,[],[f259]) ).
thf(f266,plain,
~ spl1_7,
inference(avatar_contradiction_clause,[],[f265]) ).
cnf(s15,plain,
spl1_7,
inference(sat_conversion,[],[f258]) ).
cnf(s18,plain,
~ spl1_7,
inference(sat_conversion,[],[f266]) ).
cnf(s19,plain,
$false,
inference(rat,[],[s15,s18]) ).
thf(f267,plain,
$false,
inference(avatar_sat_refutation,[],[s19]) ).
%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.00/0.03 % Problem : NLP267^2 : TPTP v9.3.1. Released v8.1.0.
% 0.00/0.06 % Command : run_vampire /export/starexec/sandbox2/benchmark/theBenchmark.p 300 SAT
% 0.09/0.19 % Computer : n014.cluster.edu
% 0.09/0.19 % Model : x86_64 x86_64
% 0.09/0.19 % CPU : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.09/0.19 % Memory : 8046.5625MB
% 0.09/0.19 % OS : Linux 6.8.0-71-generic
% 0.09/0.19 % CPULimit : 300
% 0.09/0.19 % WCLimit : 300
% 0.09/0.19 % DateTime : Tue Sep 29 11:49:00 UTC 2026
% 0.09/0.19 % CPUTime :
% 0.09/0.19 Running run_vampire /export/starexec/sandbox2/benchmark/theBenchmark.p 300 SAT
% 0.09/0.22 Running first-order model finding
% 0.09/0.22 Running: /export/starexec/sandbox2/solver/bin/vampire-ho --input_syntax tptp --output_axiom_names on --mode casc --intent sat -m 16384 --cores 7 -t 300 /export/starexec/sandbox2/benchmark/theBenchmark.p
% 0.20/0.28 % (2558983)Will run a generic schedule for satisfiability detection.
% 0.20/0.28 % (2558989)% WARNING: option uhcvi not known.
% 0.20/0.28 % (2558989)dis+11_61:31_drc=ordering:lsd=5:bsr=unit_only:rp=on:newcnf=on:random_seed=3875317756:i=135531:add=off:rawr=on_2999 on theBenchmark for (2999ds/135531Mi)
% 0.20/0.28 % (2558990)dis+10_161_sil=256000:plsq=on:plsqr=61199697,1048576:gs=on:alpa=true:sac=on:slsq=on:cn=on:random_seed=2950849934:i=88024:add=on:rawr=on_2999 on theBenchmark for (2999ds/88024Mi)
% 0.20/0.28 % (2558988)fmb+10_1_sas=cadical:bce=on:rp=on:random_seed=341176819_2999 on theBenchmark for (2999ds/0Mi)
% 0.20/0.28 % (2558989)WARNING: Not using 'newcnf' as currently not compatible with higher-order inputs.
% 0.20/0.28 % Exception at run slice level
% 0.20/0.28 User error: Finite model building is currently not compatible with polymorphism or higher-order constructs
% 0.20/0.28 % (2558989)WARNING: Look ahead literal selection is not currently compatible with higher-order. Ignoring request to use
% 0.20/0.28 % (2558989) found proof, printing to "/export/starexec/sandbox2/tmp/vampire-proof-2558983-2558989"...
% 0.20/0.28 % (2558991)dis+10_1_sil=32000:sp=arity:random_seed=2050209742:i=103:fgj=on_2999 on theBenchmark for (2999ds/103Mi)
% 0.20/0.28 % (2558990) found proof, printing to "/export/starexec/sandbox2/tmp/vampire-proof-2558983-2558990"...
% 0.20/0.28 % (2558989)...printing done.
% 0.20/0.28 % (2558989)Refutation found. Thanks to Tanya!
% 0.20/0.28 % SZS status Theorem for theBenchmark
% 0.20/0.28 % SZS output start Proof for theBenchmark
% See solution above
% 0.20/0.28 % (2558989)------------------------------
% 0.20/0.28 % (2558989)Version: Vampire 5.0.1 (Release build, commit 5ef7c2677 on 2026-07-16 16:54:09 +0200)
% 0.20/0.28 % (2558989)Linked with Z3 4.14.0.0 3c47fd96cf5645d0c42b2c819d9e9a84380aa721 z3-4.8.4-9178-g3c47fd96c
% 0.20/0.28 % (2558989)CaDiCaL version: 2.1.3
% 0.20/0.28 % (2558989)Termination reason: Refutation
% 0.20/0.28 % (2558989)Time elapsed: 0.010 s
% 0.20/0.28 % (2558989)Peak memory usage: 13 MB
% 0.20/0.28 % (2558989)Instructions burned: 15 (million)
% 0.20/0.28 % (2558983)Success in time 0.048 s
% 0.20/0.28 % Vampire exiting
%------------------------------------------------------------------------------