%------------------------------------------------------------------------------
% File : Vampire-SAT---5.0.1
% Problem : ALG280^5 : TPTP v9.3.1. Released v4.0.0.
% Transfm : none
% Format : tptp:raw
% Command : run_vampire /export/starexec/sandbox2/benchmark/theBenchmark.p 300 SAT
% Computer : n004.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 07:45:30 AM UTC 2026
% Result : Theorem 0.07s 0.26s
% Output : Refutation 0.07s
% Verified :
% SZS Type : Refutation
% Derivation depth : 13
% Number of leaves : 1
% Syntax : Number of formulae : 18 ( 11 unt; 0 typ; 0 def)
% Number of atoms : 39 ( 38 equ; 0 cnn)
% Maximal formula atoms : 4 ( 2 avg)
% Number of connectives : 173 ( 8 ~; 0 |; 18 &; 144 @)
% ( 0 <=>; 3 =>; 0 <=; 0 <~>)
% Maximal formula depth : 7 ( 4 avg)
% Number of types : 1 ( 1 usr)
% Number of type conns : 0 ( 0 >; 0 *; 0 +; 0 <<)
% Number of symbols : 7 ( 5 usr; 3 con; 0-2 aty)
% Number of variables : 54 ( 0 ^; 51 !; 3 ?; 54 :)
% Comments :
%------------------------------------------------------------------------------
thf(type_def_5,type,
a: $tType ).
thf(type_def_6,type,
sTfun: ( $tType * $tType ) > $tType ).
thf(func_def_0,type,
cE: a ).
thf(func_def_1,type,
cP: a > a > a ).
thf(func_def_2,type,
cJ: a > a ).
thf(func_def_4,type,
sK0: a ).
thf(f1,conjecture,
( ( ! [X1: a] :
( ( cP @ ( cJ @ X1 ) @ X1 )
= cE )
& ! [X0: a] :
( ( cP @ cE @ X0 )
= X0 )
& ! [X0: a,X1: a,X2: a] :
( ( cP @ ( cP @ X0 @ X1 ) @ X2 )
= ( cP @ X0 @ ( cP @ X1 @ X2 ) ) ) )
=> ! [X3: a] :
( ( cP @ X3 @ cE )
= X3 ) ),
file('/export/starexec/sandbox2/benchmark/theBenchmark.p',cTHM17_pme) ).
thf(f2,negated_conjecture,
~ ( ( ! [X1: a] :
( ( cP @ ( cJ @ X1 ) @ X1 )
= cE )
& ! [X0: a] :
( ( cP @ cE @ X0 )
= X0 )
& ! [X0: a,X1: a,X2: a] :
( ( cP @ ( cP @ X0 @ X1 ) @ X2 )
= ( cP @ X0 @ ( cP @ X1 @ X2 ) ) ) )
=> ! [X3: a] :
( ( cP @ X3 @ cE )
= X3 ) ),
inference(negated_conjecture,[status(cth)],[f1]) ).
thf(f3,plain,
~ ( ( ! [X0: a] :
( cE
= ( cP @ ( cJ @ X0 ) @ X0 ) )
& ! [X1: a] :
( ( cP @ cE @ X1 )
= X1 )
& ! [X2: a,X3: a,X4: a] :
( ( cP @ ( cP @ X2 @ X3 ) @ X4 )
= ( cP @ X2 @ ( cP @ X3 @ X4 ) ) ) )
=> ! [X5: a] :
( ( cP @ X5 @ cE )
= X5 ) ),
inference(rectify,[],[f2]) ).
thf(f4,plain,
( ? [X5: a] :
( ( cP @ X5 @ cE )
!= X5 )
& ! [X0: a] :
( cE
= ( cP @ ( cJ @ X0 ) @ X0 ) )
& ! [X1: a] :
( ( cP @ cE @ X1 )
= X1 )
& ! [X2: a,X3: a,X4: a] :
( ( cP @ ( cP @ X2 @ X3 ) @ X4 )
= ( cP @ X2 @ ( cP @ X3 @ X4 ) ) ) ),
inference(ennf_transformation,[],[f3]) ).
thf(f5,plain,
( ? [X5: a] :
( ( cP @ X5 @ cE )
!= X5 )
& ! [X0: a] :
( cE
= ( cP @ ( cJ @ X0 ) @ X0 ) )
& ! [X1: a] :
( ( cP @ cE @ X1 )
= X1 )
& ! [X2: a,X3: a,X4: a] :
( ( cP @ ( cP @ X2 @ X3 ) @ X4 )
= ( cP @ X2 @ ( cP @ X3 @ X4 ) ) ) ),
inference(flattening,[],[f4]) ).
thf(f6,plain,
( ? [X0: a] :
( ( cP @ X0 @ cE )
!= X0 )
& ! [X1: a] :
( cE
= ( cP @ ( cJ @ X1 ) @ X1 ) )
& ! [X2: a] :
( ( cP @ cE @ X2 )
= X2 )
& ! [X3: a,X4: a,X5: a] :
( ( cP @ ( cP @ X3 @ X4 ) @ X5 )
= ( cP @ X3 @ ( cP @ X4 @ X5 ) ) ) ),
inference(rectify,[],[f5]) ).
thf(f7,plain,
( ( sK0
!= ( cP @ sK0 @ cE ) )
& ! [X1: a] :
( cE
= ( cP @ ( cJ @ X1 ) @ X1 ) )
& ! [X2: a] :
( ( cP @ cE @ X2 )
= X2 )
& ! [X3: a,X4: a,X5: a] :
( ( cP @ ( cP @ X3 @ X4 ) @ X5 )
= ( cP @ X3 @ ( cP @ X4 @ X5 ) ) ) ),
inference(skolemize,[status(esa),new_symbols(skolem,[sK0]),skolemize(X0,sK0)],[f6]) ).
thf(f8,plain,
! [X3: a,X4: a,X5: a] :
( ( cP @ ( cP @ X3 @ X4 ) @ X5 )
= ( cP @ X3 @ ( cP @ X4 @ X5 ) ) ),
inference(cnf_transformation,[],[f7]) ).
thf(f9,plain,
! [X2: a] :
( ( cP @ cE @ X2 )
= X2 ),
inference(cnf_transformation,[],[f7]) ).
thf(f10,plain,
! [X1: a] :
( cE
= ( cP @ ( cJ @ X1 ) @ X1 ) ),
inference(cnf_transformation,[],[f7]) ).
thf(f11,plain,
( sK0
!= ( cP @ sK0 @ cE ) ),
inference(cnf_transformation,[],[f7]) ).
thf(f13,plain,
! [X0: a,X1: a] :
( ( cP @ cE @ X1 )
= ( cP @ ( cJ @ X0 ) @ ( cP @ X0 @ X1 ) ) ),
inference(constrained_superposition,[],[f8,f10]) ).
thf(f16,plain,
! [X0: a,X1: a] :
( ( cP @ ( cJ @ X0 ) @ ( cP @ X0 @ X1 ) )
= X1 ),
inference(forward_demodulation,[],[f13,f9]) ).
thf(f19,plain,
! [X0: a] :
( ( cP @ ( cJ @ ( cJ @ X0 ) ) @ cE )
= X0 ),
inference(constrained_superposition,[],[f16,f10]) ).
thf(f21,plain,
! [X0: a,X1: a] :
( ( cP @ X1 @ X0 )
= ( cP @ ( cJ @ ( cJ @ X1 ) ) @ X0 ) ),
inference(constrained_superposition,[],[f16,f16]) ).
thf(f24,plain,
! [X0: a] :
( ( cP @ X0 @ cE )
= X0 ),
inference(forward_demodulation,[],[f19,f21]) ).
thf(f31,plain,
sK0 != sK0,
inference(constrained_superposition,[],[f11,f24]) ).
thf(f32,plain,
$false,
inference(trivial_inequality_removal,[],[f31]) ).
%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.00/0.02 % Problem : ALG280^5 : TPTP v9.3.1. Released v4.0.0.
% 0.00/0.05 % Command : run_vampire /export/starexec/sandbox2/benchmark/theBenchmark.p 300 SAT
% 0.07/0.19 % Computer : n004.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 17:36:22 UTC 2026
% 0.07/0.19 % CPUTime :
% 0.07/0.19 Running run_vampire /export/starexec/sandbox2/benchmark/theBenchmark.p 300 SAT
% 0.07/0.22 Running first-order model finding
% 0.07/0.22 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
% 0.07/0.26 % (1613418)Will run a generic schedule for satisfiability detection.
% 0.07/0.26 % (1613423)fmb+10_1_sas=cadical:bce=on:rp=on:random_seed=250437405_2999 on theBenchmark for (2999ds/0Mi)
% 0.07/0.26 % Exception at run slice level
% 0.07/0.26 User error: Finite model building is currently not compatible with polymorphism or higher-order constructs
% 0.07/0.26 % (1613424)% WARNING: option uhcvi not known.
% 0.07/0.26 % (1613424)dis+11_61:31_drc=ordering:lsd=5:bsr=unit_only:rp=on:newcnf=on:random_seed=2229295750:i=135531:add=off:rawr=on_2999 on theBenchmark for (2999ds/135531Mi)
% 0.07/0.26 % (1613427)ott+31_1_sil=16000:lcm=predicate:bce=on:newcnf=on:random_seed=4012297583:i=116_2999 on theBenchmark for (2999ds/116Mi)
% 0.07/0.26 % (1613424)WARNING: Not using 'newcnf' as currently not compatible with higher-order inputs.
% 0.07/0.26 % (1613424)WARNING: Look ahead literal selection is not currently compatible with higher-order. Ignoring request to use
% 0.07/0.26 % (1613427)WARNING: Not using 'newcnf' as currently not compatible with higher-order inputs.
% 0.07/0.26 % (1613429)ott-3_16_to=lpo:sil=16000:sp=arity:fd=off:rp=on:random_seed=2374487480:i=159:bs=unit_only:nicw=on:fsr=off:amm=off_2999 on theBenchmark for (2999ds/159Mi)
% 0.07/0.26 % (1613427) found proof, printing to "/export/starexec/sandbox2/tmp/vampire-proof-1613418-1613427"...
% 0.07/0.26 % (1613426)dis+10_1_sil=32000:sp=arity:random_seed=1261004615:i=103:fgj=on_2999 on theBenchmark for (2999ds/103Mi)
% 0.07/0.26 % (1613428)ott+1_1_to=lpo:sil=16000:sp=reverse_arity:erd=off:random_seed=2197458922:i=131_2999 on theBenchmark for (2999ds/131Mi)
% 0.07/0.26 % (1613427)...printing done.
% 0.07/0.26 % (1613424) found proof, printing to "/export/starexec/sandbox2/tmp/vampire-proof-1613418-1613424"...
% 0.07/0.26 % (1613427)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 % (1613427)------------------------------
% 0.07/0.26 % (1613427)Version: Vampire 5.0.1 (Release build, commit 5ef7c2677 on 2026-07-16 16:54:09 +0200)
% 0.07/0.26 % (1613427)Linked with Z3 4.14.0.0 3c47fd96cf5645d0c42b2c819d9e9a84380aa721 z3-4.8.4-9178-g3c47fd96c
% 0.07/0.26 % (1613427)CaDiCaL version: 2.1.3
% 0.07/0.26 % (1613427)Termination reason: Refutation
% 0.07/0.26 % (1613427)Time elapsed: 0.003 s
% 0.07/0.26 % (1613427)Peak memory usage: 12 MB
% 0.07/0.26 % (1613427)Instructions burned: 3 (million)
% 0.07/0.26 % (1613418)Success in time 0.036 s
% 0.07/0.26 % Vampire exiting
%------------------------------------------------------------------------------