%------------------------------------------------------------------------------
% File : Vampire---5.0.1
% Problem : GEO247+3 : TPTP v9.3.1. Released v4.0.0.
% Transfm : none
% Format : tptp:raw
% Command : run_vampire /export/starexec/sandbox/benchmark/theBenchmark.p 300 THM
% Computer : n018.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 09:52:13 AM UTC 2026
% Result : Theorem 3.44s 1.43s
% Output : Refutation 3.44s
% Verified :
% SZS Type : Refutation
% Derivation depth : 6
% Number of leaves : 2
% Syntax : Number of formulae : 10 ( 3 unt; 0 def)
% Number of atoms : 52 ( 0 equ)
% Maximal formula atoms : 9 ( 5 avg)
% Number of connectives : 50 ( 8 ~; 1 |; 39 &)
% ( 0 <=>; 2 =>; 0 <=; 0 <~>)
% Maximal formula depth : 16 ( 9 avg)
% Maximal term depth : 2 ( 1 avg)
% Number of predicates : 4 ( 3 usr; 1 prp; 0-2 aty)
% Number of functors : 7 ( 7 usr; 6 con; 0-1 aty)
% Number of variables : 30 ( 18 !; 12 ?)
% Comments :
%------------------------------------------------------------------------------
fof(f20,axiom,
! [X0,X1] :
~ ( left_apart_point(X0,X1)
| left_apart_point(X0,reverse_line(X1)) ),
file('/export/starexec/sandbox/benchmark/theBenchmark.p',ax10_basics) ).
fof(f37,conjecture,
! [X0,X1,X2,X3,X4,X5] :
( ( left_apart_point(X0,X4)
& left_apart_point(X0,X5)
& right_apart_point(X1,X4)
& right_apart_point(X1,X5)
& left_apart_point(X2,X4)
& right_apart_point(X2,X5)
& right_apart_point(X3,X4)
& left_apart_point(X3,X5) )
=> convergent_lines(X4,X5) ),
file('/export/starexec/sandbox/benchmark/theBenchmark.p',con) ).
fof(f38,negated_conjecture,
~ ! [X0,X1,X2,X3,X4,X5] :
( ( left_apart_point(X0,X4)
& left_apart_point(X0,X5)
& right_apart_point(X1,X4)
& right_apart_point(X1,X5)
& left_apart_point(X2,X4)
& right_apart_point(X2,X5)
& right_apart_point(X3,X4)
& left_apart_point(X3,X5) )
=> convergent_lines(X4,X5) ),
inference(negated_conjecture,[status(cth)],[f37]) ).
fof(f58,plain,
! [X0,X1] :
( ~ left_apart_point(X0,X1)
& ~ left_apart_point(X0,reverse_line(X1)) ),
inference(ennf_transformation,[],[f20]) ).
fof(f81,plain,
? [X0,X1,X2,X3,X4,X5] :
( ~ convergent_lines(X4,X5)
& left_apart_point(X0,X4)
& left_apart_point(X0,X5)
& right_apart_point(X1,X4)
& right_apart_point(X1,X5)
& left_apart_point(X2,X4)
& right_apart_point(X2,X5)
& right_apart_point(X3,X4)
& left_apart_point(X3,X5) ),
inference(ennf_transformation,[],[f38]) ).
fof(f82,plain,
? [X0,X1,X2,X3,X4,X5] :
( ~ convergent_lines(X4,X5)
& left_apart_point(X0,X4)
& left_apart_point(X0,X5)
& right_apart_point(X1,X4)
& right_apart_point(X1,X5)
& left_apart_point(X2,X4)
& right_apart_point(X2,X5)
& right_apart_point(X3,X4)
& left_apart_point(X3,X5) ),
inference(flattening,[],[f81]) ).
fof(f84,plain,
( ~ convergent_lines(sK4,sK5)
& left_apart_point(sK0,sK4)
& left_apart_point(sK0,sK5)
& right_apart_point(sK1,sK4)
& right_apart_point(sK1,sK5)
& left_apart_point(sK2,sK4)
& right_apart_point(sK2,sK5)
& right_apart_point(sK3,sK4)
& left_apart_point(sK3,sK5) ),
inference(skolemize,[status(esa),new_symbols(skolem,[sK0,sK1,sK2,sK3,sK4,sK5]),skolemize(X0,sK0),skolemize(X1,sK1),skolemize(X2,sK2),skolemize(X3,sK3),skolemize(X4,sK4),skolemize(X5,sK5)],[f82]) ).
fof(f105,plain,
! [X0,X1] : ~ left_apart_point(X0,X1),
inference(cnf_transformation,[],[f58]) ).
fof(f132,plain,
left_apart_point(sK0,sK4),
inference(cnf_transformation,[],[f84]) ).
fof(f137,plain,
$false,
inference(resolution,[],[f105,f132]) ).
%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.00/0.02 % Problem : GEO247+3 : TPTP v9.3.1. Released v4.0.0.
% 0.00/0.05 % Command : run_vampire /export/starexec/sandbox/benchmark/theBenchmark.p 300 THM
% 0.10/0.36 % Computer : n018.cluster.edu
% 0.10/0.36 % Model : x86_64 x86_64
% 0.10/0.36 % CPU : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.10/0.36 % Memory : 8046.5625MB
% 0.10/0.36 % OS : Linux 6.8.0-71-generic
% 0.10/0.36 % CPULimit : 300
% 0.10/0.36 % WCLimit : 300
% 0.10/0.36 % DateTime : Sun Sep 27 07:53:38 UTC 2026
% 0.10/0.36 % CPUTime :
% 0.10/0.36 Running run_vampire /export/starexec/sandbox/benchmark/theBenchmark.p 300 THM
% 0.10/0.40 Running first-order theorem proving
% 0.10/0.40 Running: /export/starexec/sandbox/solver/bin/vampire --input_syntax tptp --output_axiom_names on --mode casc -m 16384 --cores 7 -t 300 /export/starexec/sandbox/benchmark/theBenchmark.p
% 3.44/1.43 % (2004192)Detected formulas, will run a generic FOF schedule.
% 3.44/1.43 % (2004199)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=1566230930:i=141695:sd=1:nm=32:gsp=on:ss=included_2999 on theBenchmark for (2999ds/141695Mi)
% 3.44/1.43 % (2004202)dis-1011_1_sil=16000:fde=unused:s2agt=70:random_seed=1261571834:s2a=on:i=139:gtg=position_2999 on theBenchmark for (2999ds/139Mi)
% 3.44/1.43 % (2004202)First to succeed.
% 3.44/1.43 % (2004202)Solution written to "/export/starexec/sandbox/tmp/vampire-proof-2004192"
% 3.44/1.43 % (2004198)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=2795953544:i=134677:sd=20:aac=none:nm=16:ss=included:sgt=10_2999 on theBenchmark for (2999ds/134677Mi)
% 3.44/1.43 % (2004201)dis-1010_2:3_sil=16000:sp=reverse_frequency:random_seed=3633597052:i=119:av=off:ss=axioms_2999 on theBenchmark for (2999ds/119Mi)
% 3.44/1.43 % (2004197)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=357619150:i=141193_2999 on theBenchmark for (2999ds/141193Mi)
% 3.44/1.43 % (2004200)lrs+1010_1_to=lpo:sil=32000:sos=on:spb=goal_then_units:bce=on:random_seed=1698687786:i=109:sd=1:ins=1:gsp=on:ss=axioms_2999 on theBenchmark for (2999ds/109Mi)
% 3.44/1.43 % (2004200)Also succeeded, but the first one will report.
% 3.44/1.43 % (2004201)Also succeeded, but the first one will report.
% 3.44/1.43 % (2004203)dis-21_1_sil=8000:lcm=predicate:random_seed=3816400342: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)
% 3.44/1.43 % (2004203)Also succeeded, but the first one will report.
% 3.44/1.43 % (2004202)Refutation found. Thanks to Tanya!
% 3.44/1.43 % SZS status Theorem for theBenchmark
% 3.44/1.43 % SZS output start Proof for theBenchmark
% See solution above
% 3.44/1.43 % (2004202)------------------------------
% 3.44/1.43 % (2004202)Version: Vampire 5.0.1 (Release build, commit ea8961452 on 2026-07-16 15:14:34 +0200)
% 3.44/1.43 % (2004202)Linked with Z3 4.14.0.0 3c47fd96cf5645d0c42b2c819d9e9a84380aa721 z3-4.8.4-9178-g3c47fd96c
% 3.44/1.43 % (2004202)CaDiCaL version: 2.1.3
% 3.44/1.43 % (2004202)Termination reason: Refutation
% 3.44/1.43 % (2004202)Time elapsed: 0.003 s
% 3.44/1.43 % (2004202)Peak memory usage: 88 MB
% 3.44/1.43 % (2004202)Instructions burned: 2 (million)
% 3.44/1.43 % (2004202)------------------------------
% 3.44/1.43 % (2004202)------------------------------
% 3.44/1.43 % (2004192)Success in time 0.404 s
% 3.44/1.43 % Vampire exiting
%------------------------------------------------------------------------------