%------------------------------------------------------------------------------
% File : Vampire---5.0.1
% Problem : GEO218+1 : TPTP v9.3.1. Released v3.3.0.
% Transfm : none
% Format : tptp:raw
% Command : run_vampire /export/starexec/sandbox2/benchmark/theBenchmark.p 300 THM
% Computer : n026.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 : Tue Sep 29 09:52:04 AM UTC 2026
% Result : Theorem 0.17s 16.50s
% Output : Refutation 0.17s
% Verified :
% SZS Type : Refutation
% Derivation depth : 13
% Number of leaves : 8
% Syntax : Number of formulae : 48 ( 14 unt; 3 def)
% Number of atoms : 108 ( 0 equ)
% Maximal formula atoms : 6 ( 2 avg)
% Number of connectives : 113 ( 53 ~; 39 |; 14 &)
% ( 3 <=>; 4 =>; 0 <=; 0 <~>)
% Maximal formula depth : 8 ( 4 avg)
% Maximal term depth : 1 ( 1 avg)
% Number of predicates : 6 ( 5 usr; 4 prp; 0-2 aty)
% Number of functors : 3 ( 3 usr; 3 con; 0-0 aty)
% Number of variables : 47 ( 0 sgn 41 !; 6 ?)
% Comments :
%------------------------------------------------------------------------------
fof(f3,axiom,
! [X0] : ~ convergent_lines(X0,X0),
file('/export/starexec/sandbox2/benchmark/theBenchmark.p',apart3) ).
fof(f6,axiom,
! [X0,X1,X2] :
( convergent_lines(X0,X1)
=> ( convergent_lines(X0,X2)
| convergent_lines(X1,X2) ) ),
file('/export/starexec/sandbox2/benchmark/theBenchmark.p',ax6) ).
fof(f15,axiom,
! [X0,X1] :
~ ( ~ convergent_lines(X0,X1)
& ~ unorthogonal_lines(X0,X1) ),
file('/export/starexec/sandbox2/benchmark/theBenchmark.p',coipo1) ).
fof(f16,axiom,
! [X0,X1,X2] :
( ( ( ~ convergent_lines(X0,X1)
| ~ unorthogonal_lines(X0,X1) )
& ( ~ convergent_lines(X0,X2)
| ~ unorthogonal_lines(X0,X2) ) )
=> ( ~ convergent_lines(X1,X2)
| ~ unorthogonal_lines(X1,X2) ) ),
file('/export/starexec/sandbox2/benchmark/theBenchmark.p',cotno1) ).
fof(f18,conjecture,
! [X0,X1,X2] :
( ( ~ convergent_lines(X0,X1)
& ~ unorthogonal_lines(X0,X2) )
=> ~ unorthogonal_lines(X1,X2) ),
file('/export/starexec/sandbox2/benchmark/theBenchmark.p',con) ).
fof(f19,negated_conjecture,
~ ! [X0,X1,X2] :
( ( ~ convergent_lines(X0,X1)
& ~ unorthogonal_lines(X0,X2) )
=> ~ unorthogonal_lines(X1,X2) ),
inference(negated_conjecture,[status(cth)],[f18]) ).
fof(f20,plain,
? [X0,X1,X2] :
( unorthogonal_lines(X1,X2)
& ~ convergent_lines(X0,X1)
& ~ unorthogonal_lines(X0,X2) ),
inference(ennf_transformation,[],[f19]) ).
fof(f21,plain,
? [X0,X1,X2] :
( unorthogonal_lines(X1,X2)
& ~ convergent_lines(X0,X1)
& ~ unorthogonal_lines(X0,X2) ),
inference(flattening,[],[f20]) ).
fof(f24,plain,
! [X0,X1,X2] :
( ~ convergent_lines(X1,X2)
| ~ unorthogonal_lines(X1,X2)
| ( convergent_lines(X0,X1)
& unorthogonal_lines(X0,X1) )
| ( convergent_lines(X0,X2)
& unorthogonal_lines(X0,X2) ) ),
inference(ennf_transformation,[],[f16]) ).
fof(f25,plain,
! [X0,X1,X2] :
( ~ convergent_lines(X1,X2)
| ~ unorthogonal_lines(X1,X2)
| ( convergent_lines(X0,X1)
& unorthogonal_lines(X0,X1) )
| ( convergent_lines(X0,X2)
& unorthogonal_lines(X0,X2) ) ),
inference(flattening,[],[f24]) ).
fof(f26,plain,
! [X0,X1] :
( convergent_lines(X0,X1)
| unorthogonal_lines(X0,X1) ),
inference(ennf_transformation,[],[f15]) ).
fof(f31,plain,
! [X0,X1,X2] :
( convergent_lines(X0,X2)
| convergent_lines(X1,X2)
| ~ convergent_lines(X0,X1) ),
inference(ennf_transformation,[],[f6]) ).
fof(f32,plain,
! [X0,X1,X2] :
( convergent_lines(X0,X2)
| convergent_lines(X1,X2)
| ~ convergent_lines(X0,X1) ),
inference(flattening,[],[f31]) ).
fof(f45,plain,
( unorthogonal_lines(sK1,sK2)
& ~ convergent_lines(sK0,sK1)
& ~ unorthogonal_lines(sK0,sK2) ),
inference(skolemize,[status(esa),new_symbols(skolem,[sK0,sK1,sK2]),skolemize(X0,sK0),skolemize(X1,sK1),skolemize(X2,sK2)],[f21]) ).
fof(f46,plain,
~ unorthogonal_lines(sK0,sK2),
inference(cnf_transformation,[],[f45]) ).
fof(f47,plain,
~ convergent_lines(sK0,sK1),
inference(cnf_transformation,[],[f45]) ).
fof(f48,plain,
unorthogonal_lines(sK1,sK2),
inference(cnf_transformation,[],[f45]) ).
fof(f52,plain,
! [X2,X0,X1] :
( unorthogonal_lines(X0,X2)
| ~ unorthogonal_lines(X1,X2)
| convergent_lines(X0,X1)
| ~ convergent_lines(X1,X2) ),
inference(cnf_transformation,[],[f25]) ).
fof(f54,plain,
! [X0,X1] :
( unorthogonal_lines(X0,X1)
| convergent_lines(X0,X1) ),
inference(cnf_transformation,[],[f26]) ).
fof(f58,plain,
! [X2,X0,X1] :
( convergent_lines(X1,X2)
| convergent_lines(X0,X2)
| ~ convergent_lines(X0,X1) ),
inference(cnf_transformation,[],[f32]) ).
fof(f59,plain,
! [X0] : ~ convergent_lines(X0,X0),
inference(cnf_transformation,[],[f3]) ).
fof(f69,plain,
convergent_lines(sK0,sK2),
inference(resolution,[],[f54,f46]) ).
fof(f101,definition,
( spl3_1
<=> convergent_lines(sK2,sK1) ),
introduced(definition,[new_symbols(definition,[spl3_1])],[avatar_definition]) ).
fof(f102,plain,
( ~ convergent_lines(sK2,sK1)
| spl3_1 ),
inference(avatar_component_clause,[],[f101]) ).
fof(f110,plain,
( ! [X0] :
( ~ convergent_lines(X0,sK2)
| convergent_lines(X0,sK1) )
| spl3_1 ),
inference(resolution,[],[f102,f58]) ).
fof(f117,plain,
( convergent_lines(sK0,sK1)
| spl3_1 ),
inference(resolution,[],[f110,f69]) ).
fof(f120,plain,
( $false
| spl3_1 ),
inference(resolution,[],[f117,f47]) ).
fof(f122,plain,
spl3_1,
inference(avatar_contradiction_clause,[],[f120]) ).
fof(f123,plain,
! [X0] :
( ~ unorthogonal_lines(X0,sK2)
| convergent_lines(sK0,X0)
| ~ convergent_lines(X0,sK2) ),
inference(resolution,[],[f52,f46]) ).
fof(f260,plain,
( convergent_lines(sK0,sK1)
| ~ convergent_lines(sK1,sK2) ),
inference(resolution,[],[f123,f48]) ).
fof(f263,definition,
( spl3_3
<=> convergent_lines(sK1,sK2) ),
introduced(definition,[new_symbols(definition,[spl3_3])],[avatar_definition]) ).
fof(f264,plain,
( ~ convergent_lines(sK1,sK2)
| spl3_3 ),
inference(avatar_component_clause,[],[f263]) ).
fof(f266,definition,
( spl3_4
<=> convergent_lines(sK0,sK1) ),
introduced(definition,[new_symbols(definition,[spl3_4])],[avatar_definition]) ).
fof(f267,plain,
( convergent_lines(sK0,sK1)
| ~ spl3_4 ),
inference(avatar_component_clause,[],[f266]) ).
fof(f268,plain,
( ~ spl3_3
| spl3_4 ),
inference(avatar_split_clause,[],[f260,f266,f263]) ).
fof(f294,plain,
( ! [X0] :
( convergent_lines(X0,sK2)
| ~ convergent_lines(X0,sK1) )
| spl3_3 ),
inference(resolution,[],[f264,f58]) ).
fof(f295,plain,
( ~ convergent_lines(sK2,sK1)
| spl3_3 ),
inference(resolution,[],[f294,f59]) ).
fof(f297,plain,
( ~ spl3_1
| spl3_3 ),
inference(avatar_split_clause,[],[f295,f263,f101]) ).
fof(f298,plain,
( $false
| ~ spl3_4 ),
inference(resolution,[],[f267,f47]) ).
fof(f300,plain,
~ spl3_4,
inference(avatar_contradiction_clause,[],[f298]) ).
cnf(s2,plain,
spl3_1,
inference(sat_conversion,[],[f122]) ).
cnf(s3,plain,
( ~ spl3_3
| spl3_4 ),
inference(sat_conversion,[],[f268]) ).
cnf(s10,plain,
( ~ spl3_1
| spl3_3 ),
inference(sat_conversion,[],[f297]) ).
cnf(s11,plain,
~ spl3_4,
inference(sat_conversion,[],[f300]) ).
cnf(s12,plain,
~ spl3_3,
inference(rat,[],[s3,s11]) ).
cnf(s13,plain,
~ spl3_1,
inference(rat,[],[s10,s12]) ).
cnf(s14,plain,
$false,
inference(rat,[],[s2,s13]) ).
fof(f301,plain,
$false,
inference(avatar_sat_refutation,[],[s14]) ).
%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.00/0.02 % Problem : GEO218+1 : TPTP v9.3.1. Released v3.3.0.
% 0.00/0.05 % Command : run_vampire /export/starexec/sandbox2/benchmark/theBenchmark.p 300 THM
% 0.10/15.39 % Computer : n026.cluster.edu
% 0.10/15.39 % Model : x86_64 x86_64
% 0.10/15.39 % CPU : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.10/15.39 % Memory : 8046.5625MB
% 0.10/15.39 % OS : Linux 6.8.0-71-generic
% 0.10/15.39 % CPULimit : 300
% 0.10/15.39 % WCLimit : 300
% 0.10/15.39 % DateTime : Sun Sep 27 07:44:42 UTC 2026
% 0.10/15.39 % CPUTime :
% 0.10/15.39 Running run_vampire /export/starexec/sandbox2/benchmark/theBenchmark.p 300 THM
% 0.15/15.43 Running first-order theorem proving
% 0.15/15.43 Running: /export/starexec/sandbox2/solver/bin/vampire --input_syntax tptp --output_axiom_names on --mode casc -m 16384 --cores 7 -t 300 /export/starexec/sandbox2/benchmark/theBenchmark.p
% 0.17/16.50 % (2503414)Detected formulas, will run a generic FOF schedule.
% 0.17/16.50 % (2503435)lrs+10_1_ncem=casc2026/models/loop8.pt:sil=128000:tgt=full:npcc=on:drc=off:sp=weighted_frequency:spb=goal:fd=preordered:foolp=on:random_seed=691581485:i=141193_2999 on theBenchmark for (2999ds/141193Mi)
% 0.17/16.50 % (2503436)lrs+11_1_ncem=casc2026/models/loop8.pt:sil=128000:npcc=on:lma=off:spb=units:urr=ec_only:bce=on:s2agt=64:updr=off:random_seed=816661090:i=134677:sd=20:aac=none:nm=16:ss=included:sgt=10_2999 on theBenchmark for (2999ds/134677Mi)
% 0.17/16.50 % (2503441)dis-21_1_sil=8000:lcm=predicate:random_seed=68071384:st=5:avsq=on:i=129:avsqr=1,16:sd=3:aac=none:ep=RS:fsr=off:ss=included_2999 on theBenchmark for (2999ds/129Mi)
% 0.17/16.50 % (2503441)First to succeed.
% 0.17/16.50 % (2503441)Solution written to "/export/starexec/sandbox2/tmp/vampire-proof-2503414"
% 0.17/16.50 % (2503438)lrs+1010_1_to=lpo:sil=32000:sos=on:spb=goal_then_units:bce=on:random_seed=1988652178:i=109:sd=1:ins=1:gsp=on:ss=axioms_2999 on theBenchmark for (2999ds/109Mi)
% 0.17/16.50 % (2503437)lrs+1010_1_anc=all:sfv=off:to=kbo:ncem=casc2026/models/loop7.pt:sil=128000:npcc=on:prc=on:sos=all:bsr=unit_only:sac=on:random_seed=2451395008:i=141695:sd=1:nm=32:gsp=on:ss=included_2999 on theBenchmark for (2999ds/141695Mi)
% 0.17/16.50 % (2503439)dis-1010_2:3_sil=16000:sp=reverse_frequency:random_seed=3320180682:i=119:av=off:ss=axioms_2999 on theBenchmark for (2999ds/119Mi)
% 0.17/16.50 % (2503439)Also succeeded, but the first one will report.
% 0.17/16.50 % (2503438)Also succeeded, but the first one will report.
% 0.17/16.50 % (2503440)dis-1011_1_sil=16000:fde=unused:s2agt=70:random_seed=2499919014:s2a=on:i=139:gtg=position_2999 on theBenchmark for (2999ds/139Mi)
% 0.17/16.50 % (2503440)Also succeeded, but the first one will report.
% 0.17/16.50 % (2503441)Refutation found. Thanks to Tanya!
% 0.17/16.50 % SZS status Theorem for theBenchmark
% 0.17/16.50 % SZS output start Proof for theBenchmark
% See solution above
% 0.17/16.50 % (2503441)------------------------------
% 0.17/16.50 % (2503441)Version: Vampire 5.0.1 (Release build, commit ea8961452 on 2026-07-16 15:14:34 +0200)
% 0.17/16.50 % (2503441)Linked with Z3 4.14.0.0 3c47fd96cf5645d0c42b2c819d9e9a84380aa721 z3-4.8.4-9178-g3c47fd96c
% 0.17/16.50 % (2503441)CaDiCaL version: 2.1.3
% 0.17/16.50 % (2503441)Termination reason: Refutation
% 0.17/16.50 % (2503441)Time elapsed: 0.007 s
% 0.17/16.50 % (2503441)Peak memory usage: 89 MB
% 0.17/16.50 % (2503441)Instructions burned: 9 (million)
% 0.17/16.50 % (2503441)------------------------------
% 0.17/16.50 % (2503441)------------------------------
% 0.17/16.50 % (2503414)Success in time 0.397 s
% 0.17/16.50 % Vampire exiting
%------------------------------------------------------------------------------