%------------------------------------------------------------------------------
% File : Vampire---5.0.1
% Problem : SET588^5 : TPTP v9.3.1. Released v4.0.0.
% Transfm : none
% Format : tptp:raw
% Command : run_vampire /export/starexec/sandbox2/benchmark/theBenchmark.p 300 THM
% Computer : n020.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 08:23:18 AM UTC 2026
% Result : Theorem 0.25s 0.37s
% Output : Refutation 0.25s
% Verified :
% SZS Type : Refutation
% Derivation depth : 12
% Number of leaves : 1
% Syntax : Number of formulae : 17 ( 5 unt; 0 typ; 0 def)
% Number of atoms : 109 ( 46 equ; 0 cnn)
% Maximal formula atoms : 6 ( 6 avg)
% Number of connectives : 142 ( 31 ~; 11 |; 22 &; 63 @)
% ( 0 <=>; 15 =>; 0 <=; 0 <~>)
% Maximal formula depth : 11 ( 6 avg)
% Number of types : 2 ( 1 usr)
% Number of type conns : 24 ( 24 >; 0 *; 0 +; 0 <<)
% Number of symbols : 8 ( 5 usr; 3 con; 0-2 aty)
% Number of variables : 42 ( 0 ^; 30 !; 12 ?; 42 :)
% Comments :
%------------------------------------------------------------------------------
thf(type_def_5,type,
a: $tType ).
thf(type_def_6,type,
sTfun: ( $tType * $tType ) > $tType ).
thf(func_def_3,type,
sK0: a > $o ).
thf(func_def_4,type,
sK1: a > $o ).
thf(func_def_5,type,
sK2: a > $o ).
thf(func_def_6,type,
sK3: a ).
thf(f1,conjecture,
! [X0: a > $o,X2: a > $o,X1: a > $o] :
( ! [X3: a] :
( ( X0 @ X3 )
=> ( X1 @ X3 ) )
=> ! [X3: a] :
( ( ~ ( X2 @ X3 )
& ( X0 @ X3 ) )
=> ( ~ ( X2 @ X3 )
& ( X1 @ X3 ) ) ) ),
file('/export/starexec/sandbox2/benchmark/theBenchmark.p',cBOOL_PROP_46_pme) ).
thf(f2,negated_conjecture,
~ ! [X0: a > $o,X2: a > $o,X1: a > $o] :
( ! [X3: a] :
( ( X0 @ X3 )
=> ( X1 @ X3 ) )
=> ! [X3: a] :
( ( ~ ( X2 @ X3 )
& ( X0 @ X3 ) )
=> ( ~ ( X2 @ X3 )
& ( X1 @ X3 ) ) ) ),
inference(negated_conjecture,[status(cth)],[f1]) ).
thf(f3,plain,
~ ! [X0: a > $o,X1: a > $o,X2: a > $o] :
( ! [X3: a] :
( ( X0 @ X3 )
=> ( X2 @ X3 ) )
=> ! [X4: a] :
( ( ~ ( X1 @ X4 )
& ( X0 @ X4 ) )
=> ( ~ ( X1 @ X4 )
& ( X2 @ X4 ) ) ) ),
inference(rectify,[],[f2]) ).
thf(f4,plain,
~ ! [X0: a > $o,X1: a > $o,X2: a > $o] :
( ! [X3: a] :
( ( ( X0 @ X3 )
= $true )
=> ( ( X2 @ X3 )
= $true ) )
=> ! [X4: a] :
( ( ( $true
!= ( X1 @ X4 ) )
& ( ( X0 @ X4 )
= $true ) )
=> ( ( $true
!= ( X1 @ X4 ) )
& ( $true
= ( X2 @ X4 ) ) ) ) ),
inference(fool_elimination,[],[f3]) ).
thf(f5,plain,
~ ! [X2: a > $o,X0: a > $o,X1: a > $o] :
( ! [X3: a] :
( ( ( X0 @ X3 )
= $true )
=> ( ( X2 @ X3 )
= $true ) )
=> ! [X4: a] :
( ( ( $true
!= ( X1 @ X4 ) )
& ( ( X0 @ X4 )
= $true ) )
=> ( ( $true
!= ( X1 @ X4 ) )
& ( $true
= ( X2 @ X4 ) ) ) ) ),
inference(flattening,[],[f4]) ).
thf(f6,plain,
? [X2: a > $o,X0: a > $o,X1: a > $o] :
( ? [X4: a] :
( ( ( $true
= ( X1 @ X4 ) )
| ( $true
!= ( X2 @ X4 ) ) )
& ( $true
!= ( X1 @ X4 ) )
& ( ( X0 @ X4 )
= $true ) )
& ! [X3: a] :
( ( ( X0 @ X3 )
!= $true )
| ( ( X2 @ X3 )
= $true ) ) ),
inference(ennf_transformation,[],[f5]) ).
thf(f7,plain,
? [X0: a > $o,X2: a > $o,X1: a > $o] :
( ? [X4: a] :
( ( ( $true
= ( X1 @ X4 ) )
| ( $true
!= ( X2 @ X4 ) ) )
& ( ( X0 @ X4 )
= $true )
& ( $true
!= ( X1 @ X4 ) ) )
& ! [X3: a] :
( ( ( X0 @ X3 )
!= $true )
| ( ( X2 @ X3 )
= $true ) ) ),
inference(flattening,[],[f6]) ).
thf(f8,plain,
? [X0: a > $o,X1: a > $o,X2: a > $o] :
( ? [X3: a] :
( ( ( ( X2 @ X3 )
= $true )
| ( ( X1 @ X3 )
!= $true ) )
& ( ( X0 @ X3 )
= $true )
& ( ( X2 @ X3 )
!= $true ) )
& ! [X4: a] :
( ( ( X0 @ X4 )
!= $true )
| ( $true
= ( X1 @ X4 ) ) ) ),
inference(rectify,[],[f7]) ).
thf(f9,plain,
( ( ( ( sK2 @ sK3 )
= $true )
| ( $true
!= ( sK1 @ sK3 ) ) )
& ( ( sK0 @ sK3 )
= $true )
& ( ( sK2 @ sK3 )
!= $true )
& ! [X4: a] :
( ( ( sK0 @ X4 )
!= $true )
| ( ( sK1 @ X4 )
= $true ) ) ),
inference(skolemize,[status(esa),new_symbols(skolem,[sK0,sK1,sK2,sK3]),skolemize(X0,sK0),skolemize(X1,sK1),skolemize(X2,sK2),skolemize(X3,sK3)],[f8]) ).
thf(f10,plain,
! [X4: a] :
( ( ( sK0 @ X4 )
!= $true )
| ( ( sK1 @ X4 )
= $true ) ),
inference(cnf_transformation,[],[f9]) ).
thf(f11,plain,
( ( sK2 @ sK3 )
!= $true ),
inference(cnf_transformation,[],[f9]) ).
thf(f12,plain,
( ( sK0 @ sK3 )
= $true ),
inference(cnf_transformation,[],[f9]) ).
thf(f13,plain,
( ( ( sK2 @ sK3 )
= $true )
| ( $true
!= ( sK1 @ sK3 ) ) ),
inference(cnf_transformation,[],[f9]) ).
thf(f16,plain,
( $true
!= ( sK1 @ sK3 ) ),
inference(forward_subsumption_resolution,[],[f13,f11]) ).
thf(f17,plain,
( ( $true != $true )
| ( $true
= ( sK1 @ sK3 ) ) ),
inference(constrained_superposition,[],[f10,f12]) ).
thf(f18,plain,
( $true
= ( sK1 @ sK3 ) ),
inference(trivial_inequality_removal,[],[f17]) ).
thf(f19,plain,
$false,
inference(forward_subsumption_resolution,[],[f18,f16]) ).
%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.00/0.04 % Problem : SET588^5 : TPTP v9.3.1. Released v4.0.0.
% 0.00/0.08 % Command : run_vampire /export/starexec/sandbox2/benchmark/theBenchmark.p 300 THM
% 0.10/0.26 % Computer : n020.cluster.edu
% 0.10/0.26 % Model : x86_64 x86_64
% 0.10/0.26 % CPU : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.10/0.26 % Memory : 8046.5625MB
% 0.10/0.26 % OS : Linux 6.8.0-71-generic
% 0.10/0.26 % CPULimit : 300
% 0.10/0.26 % WCLimit : 300
% 0.10/0.26 % DateTime : Tue Sep 29 13:38:49 UTC 2026
% 0.10/0.26 % CPUTime :
% 0.10/0.26 Running run_vampire /export/starexec/sandbox2/benchmark/theBenchmark.p 300 THM
% 0.25/0.31 Running higher-order theorem proving
% 0.25/0.33 Running: /export/starexec/sandbox2/solver/bin/vampire-ho --input_syntax tptp --output_axiom_names on --mode casc -m 16384 --cores 7 -t 300 /export/starexec/sandbox2/benchmark/theBenchmark.p
% 0.25/0.37 % (1059670)Detected a higher-order problem, will run a greedy HOL sequence.
% 0.25/0.37 % (1059677)lrs+10_1_cnfonf=off:si=on:uwa=one_side_interpreted:random_seed=3388511603:i=3:rtra=on:inj=on:ntd=on_2999 on theBenchmark for (2999ds/3Mi)
% 0.25/0.37 % (1059677) found proof, printing to "/export/starexec/sandbox2/tmp/vampire-proof-1059670-1059677"...
% 0.25/0.37 % (1059677)...printing done.
% 0.25/0.37 % (1059677)Refutation found. Thanks to Tanya!
% 0.25/0.37 % SZS status Theorem for theBenchmark
% 0.25/0.37 % SZS output start Proof for theBenchmark
% See solution above
% 0.25/0.37 % (1059677)------------------------------
% 0.25/0.37 % (1059677)Version: Vampire 5.0.1 (Release build, commit 5ef7c2677 on 2026-07-16 16:54:09 +0200)
% 0.25/0.37 % (1059677)Linked with Z3 4.14.0.0 3c47fd96cf5645d0c42b2c819d9e9a84380aa721 z3-4.8.4-9178-g3c47fd96c
% 0.25/0.37 % (1059677)CaDiCaL version: 2.1.3
% 0.25/0.37 % (1059677)Termination reason: Refutation
% 0.25/0.37 % (1059677)Time elapsed: 0.002 s
% 0.25/0.37 % (1059677)Peak memory usage: 12 MB
% 0.25/0.37 % (1059677)Instructions burned: 1 (million)
% 0.25/0.37 % (1059670)Success in time 0.025 s
% 0.25/0.37 % Vampire exiting
%------------------------------------------------------------------------------