%------------------------------------------------------------------------------
% File : Vampire---5.0.1
% Problem : SET630^5 : 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 : n006.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 08:23:25 AM UTC 2026
% Result : Theorem 0.07s 0.25s
% Output : Refutation 0.07s
% Verified :
% SZS Type : Refutation
% Derivation depth : 10
% Number of leaves : 1
% Syntax : Number of formulae : 13 ( 4 unt; 0 typ; 0 def)
% Number of atoms : 82 ( 35 equ; 0 cnn)
% Maximal formula atoms : 6 ( 6 avg)
% Number of connectives : 122 ( 28 ~; 9 |; 32 &; 53 @)
% ( 0 <=>; 0 =>; 0 <=; 0 <~>)
% Maximal formula depth : 12 ( 7 avg)
% Number of types : 2 ( 1 usr)
% Number of type conns : 14 ( 14 >; 0 *; 0 +; 0 <<)
% Number of symbols : 7 ( 4 usr; 3 con; 0-2 aty)
% Number of variables : 21 ( 0 ^; 10 !; 11 ?; 21 :)
% 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 ).
thf(f1,conjecture,
! [X0: a > $o,X1: a > $o] :
~ ? [X2: a] :
( ( ( ( X1 @ X2 )
& ~ ( X0 @ X2 ) )
| ( ~ ( X1 @ X2 )
& ( X0 @ X2 ) ) )
& ( X1 @ X2 )
& ( X0 @ X2 ) ),
file('/export/starexec/sandbox2/benchmark/theBenchmark.p',cBOOL_PROP_112_pme) ).
thf(f2,negated_conjecture,
~ ! [X0: a > $o,X1: a > $o] :
~ ? [X2: a] :
( ( ( ( X1 @ X2 )
& ~ ( X0 @ X2 ) )
| ( ~ ( X1 @ X2 )
& ( X0 @ X2 ) ) )
& ( X1 @ X2 )
& ( X0 @ X2 ) ),
inference(negated_conjecture,[status(cth)],[f1]) ).
thf(f3,plain,
~ ! [X0: a > $o,X1: a > $o] :
~ ? [X2: a] :
( ( ( ( X1 @ X2 )
& ~ ( X0 @ X2 ) )
| ( ~ ( X1 @ X2 )
& ( X0 @ X2 ) ) )
& ( X1 @ X2 )
& ( X0 @ X2 ) ),
inference(rectify,[],[f2]) ).
thf(f4,plain,
~ ! [X0: a > $o,X1: a > $o] :
~ ? [X2: a] :
( ( ( ( ( X1 @ X2 )
= $true )
& ( ( X0 @ X2 )
!= $true ) )
| ( ( ( X1 @ X2 )
!= $true )
& ( ( X0 @ X2 )
= $true ) ) )
& ( ( X1 @ X2 )
= $true )
& ( ( X0 @ X2 )
= $true ) ),
inference(fool_elimination,[],[f3]) ).
thf(f5,plain,
~ ! [X0: a > $o,X1: a > $o] :
~ ? [X2: a] :
( ( ( ( ( X0 @ X2 )
= $true )
& ( ( X1 @ X2 )
!= $true ) )
| ( ( ( X1 @ X2 )
= $true )
& ( ( X0 @ X2 )
!= $true ) ) )
& ( ( X1 @ X2 )
= $true )
& ( ( X0 @ X2 )
= $true ) ),
inference(flattening,[],[f4]) ).
thf(f6,plain,
? [X0: a > $o,X1: a > $o,X2: a] :
( ( ( ( ( X0 @ X2 )
= $true )
& ( ( X1 @ X2 )
!= $true ) )
| ( ( ( X1 @ X2 )
= $true )
& ( ( X0 @ X2 )
!= $true ) ) )
& ( ( X1 @ X2 )
= $true )
& ( ( X0 @ X2 )
= $true ) ),
inference(ennf_transformation,[],[f5]) ).
thf(f7,plain,
? [X0: a > $o,X1: a > $o,X2: a] :
( ( ( ( ( X0 @ X2 )
= $true )
& ( ( X1 @ X2 )
!= $true ) )
| ( ( ( X1 @ X2 )
= $true )
& ( ( X0 @ X2 )
!= $true ) ) )
& ( ( X1 @ X2 )
= $true )
& ( ( X0 @ X2 )
= $true ) ),
inference(flattening,[],[f6]) ).
thf(f8,plain,
( ( ( ( ( sK0 @ sK2 )
= $true )
& ( $true
!= ( sK1 @ sK2 ) ) )
| ( ( $true
= ( sK1 @ sK2 ) )
& ( ( sK0 @ sK2 )
!= $true ) ) )
& ( $true
= ( sK1 @ sK2 ) )
& ( ( sK0 @ sK2 )
= $true ) ),
inference(skolemize,[status(esa),new_symbols(skolem,[sK0,sK1,sK2]),skolemize(X0,sK0),skolemize(X1,sK1),skolemize(X2,sK2)],[f7]) ).
thf(f9,plain,
( ( sK0 @ sK2 )
= $true ),
inference(cnf_transformation,[],[f8]) ).
thf(f10,plain,
( $true
= ( sK1 @ sK2 ) ),
inference(cnf_transformation,[],[f8]) ).
thf(f11,plain,
( ( $true
!= ( sK1 @ sK2 ) )
| ( ( sK0 @ sK2 )
!= $true ) ),
inference(cnf_transformation,[],[f8]) ).
thf(f16,plain,
( ( sK0 @ sK2 )
!= $true ),
inference(forward_subsumption_resolution,[],[f11,f10]) ).
thf(f17,plain,
$false,
inference(forward_subsumption_resolution,[],[f16,f9]) ).
%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.00/0.03 % Problem : SET630^5 : TPTP v9.3.1. Released v4.0.0.
% 0.00/0.05 % Command : run_vampire /export/starexec/sandbox2/benchmark/theBenchmark.p 300 THM
% 0.07/0.18 % Computer : n006.cluster.edu
% 0.07/0.18 % Model : x86_64 x86_64
% 0.07/0.18 % CPU : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.07/0.18 % Memory : 8046.5625MB
% 0.07/0.18 % OS : Linux 6.8.0-71-generic
% 0.07/0.18 % CPULimit : 300
% 0.07/0.18 % WCLimit : 300
% 0.07/0.18 % DateTime : Tue Sep 29 13:39:55 UTC 2026
% 0.07/0.18 % CPUTime :
% 0.07/0.18 Running run_vampire /export/starexec/sandbox2/benchmark/theBenchmark.p 300 THM
% 0.07/0.22 Running higher-order theorem proving
% 0.07/0.23 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
% 0.07/0.25 % (725228)Detected a higher-order problem, will run a greedy HOL sequence.
% 0.07/0.25 % (725240)dis+21_4_fde=none:e2e=on:si=on:uwa=off:foolp=on:random_seed=8869847:i=24:av=off:rtra=on_2999 on theBenchmark for (2999ds/24Mi)
% 0.07/0.25 % (725240) found proof, printing to "/export/starexec/sandbox2/tmp/vampire-proof-725228-725240"...
% 0.07/0.25 % (725240)...printing done.
% 0.07/0.25 % (725240)Refutation found. Thanks to Tanya!
% 0.07/0.25 % SZS status Theorem for theBenchmark
% 0.07/0.25 % SZS output start Proof for theBenchmark
% See solution above
% 0.07/0.26 % (725240)------------------------------
% 0.07/0.26 % (725240)Version: Vampire 5.0.1 (Release build, commit 5ef7c2677 on 2026-07-16 16:54:09 +0200)
% 0.07/0.26 % (725240)Linked with Z3 4.14.0.0 3c47fd96cf5645d0c42b2c819d9e9a84380aa721 z3-4.8.4-9178-g3c47fd96c
% 0.07/0.26 % (725240)CaDiCaL version: 2.1.3
% 0.07/0.26 % (725240)Termination reason: Refutation
% 0.07/0.26 % (725240)Time elapsed: 0.001 s
% 0.07/0.26 % (725240)Peak memory usage: 12 MB
% 0.07/0.26 % (725240)Instructions burned: 1 (million)
% 0.07/0.26 % (725228)Success in time 0.017 s
% 0.07/0.26 % Vampire exiting
%------------------------------------------------------------------------------