%------------------------------------------------------------------------------
% File : Vampire---5.0.1
% Problem : SET183-6 : TPTP v9.3.1. Bugfixed v2.1.0.
% Transfm : none
% Format : tptp:raw
% Command : run_vampire /export/starexec/sandbox2/benchmark/theBenchmark.p 300 THM
% 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 : Tue Sep 29 12:40:26 PM UTC 2026
% Result : Unsatisfiable 2.53s 1.32s
% Output : Refutation 2.53s
% Verified :
% SZS Type : Refutation
% Derivation depth : 11
% Number of leaves : 13
% Syntax : Number of formulae : 46 ( 11 unt; 5 def)
% Number of atoms : 89 ( 4 equ)
% Maximal formula atoms : 3 ( 1 avg)
% Number of connectives : 79 ( 36 ~; 38 |; 0 &)
% ( 5 <=>; 0 =>; 0 <=; 0 <~>)
% Maximal formula depth : 7 ( 3 avg)
% Maximal term depth : 3 ( 1 avg)
% Number of predicates : 9 ( 7 usr; 5 prp; 0-2 aty)
% Number of functors : 4 ( 4 usr; 2 con; 0-2 aty)
% Number of variables : 20 ( 0 sgn 20 !; 0 ?)
% Comments :
%------------------------------------------------------------------------------
fof(f1,axiom,
! [X2,X0,X1] :
( ~ subclass(X0,X1)
| ~ member(X2,X0)
| member(X2,X1) ),
file('/export/starexec/sandbox2/benchmark/theBenchmark.p',subclass_members) ).
fof(f2,axiom,
! [X0,X1] :
( subclass(X0,X1)
| member(not_subclass_element(X0,X1),X0) ),
file('/export/starexec/sandbox2/benchmark/theBenchmark.p',not_subclass_members1) ).
fof(f3,axiom,
! [X0,X1] :
( subclass(X0,X1)
| ~ member(not_subclass_element(X0,X1),X1) ),
file('/export/starexec/sandbox2/benchmark/theBenchmark.p',not_subclass_members2) ).
fof(f7,axiom,
! [X0,X1] :
( ~ subclass(X0,X1)
| ~ subclass(X1,X0)
| X0 = X1 ),
file('/export/starexec/sandbox2/benchmark/theBenchmark.p',subclass_implies_equal) ).
fof(f21,axiom,
! [X2,X0,X1] :
( ~ member(X0,intersection(X1,X2))
| member(X0,X1) ),
file('/export/starexec/sandbox2/benchmark/theBenchmark.p',intersection1) ).
fof(f23,axiom,
! [X2,X0,X1] :
( member(X0,intersection(X1,X2))
| ~ member(X0,X2)
| ~ member(X0,X1) ),
file('/export/starexec/sandbox2/benchmark/theBenchmark.p',intersection3) ).
fof(f122,negated_conjecture,
subclass(x,y),
file('/export/starexec/sandbox2/benchmark/theBenchmark.p',prove_subclass_property1_1) ).
fof(f123,negated_conjecture,
intersection(x,y) != x,
file('/export/starexec/sandbox2/benchmark/theBenchmark.p',prove_subclass_property1_2) ).
fof(f124,plain,
x != intersection(x,y),
inference(reorient_equations,[],[f123]) ).
fof(f177,definition,
! [X0,X1] :
( sQ0_eqProxy(X0,X1)
<=> X0 = X1 ),
introduced(definition,[new_symbols(definition,[sQ0_eqProxy])],[equality_proxy_definition]) ).
fof(f178,plain,
~ sQ0_eqProxy(x,intersection(x,y)),
inference(equality_proxy_replacement,[],[f124,f177]) ).
fof(f181,plain,
! [X0,X1] :
( sQ0_eqProxy(X0,X1)
| ~ subclass(X1,X0)
| ~ subclass(X0,X1) ),
inference(equality_proxy_replacement,[],[f7,f177]) ).
fof(f208,plain,
! [X0] :
( member(X0,y)
| ~ member(X0,x) ),
inference(resolution,[],[f1,f122]) ).
fof(f209,plain,
( ~ subclass(intersection(x,y),x)
| ~ subclass(x,intersection(x,y)) ),
inference(resolution,[],[f181,f178]) ).
fof(f212,definition,
( spl1_1
<=> subclass(intersection(x,y),x) ),
introduced(definition,[new_symbols(definition,[spl1_1])],[avatar_definition]) ).
fof(f213,plain,
( ~ subclass(intersection(x,y),x)
| spl1_1 ),
inference(avatar_component_clause,[],[f212]) ).
fof(f215,definition,
( spl1_2
<=> subclass(x,intersection(x,y)) ),
introduced(definition,[new_symbols(definition,[spl1_2])],[avatar_definition]) ).
fof(f216,plain,
( ~ subclass(x,intersection(x,y))
| spl1_2 ),
inference(avatar_component_clause,[],[f215]) ).
fof(f218,plain,
( ~ spl1_2
| ~ spl1_1 ),
inference(avatar_split_clause,[],[f209,f212,f215]) ).
fof(f219,plain,
( ~ member(not_subclass_element(intersection(x,y),x),x)
| spl1_1 ),
inference(resolution,[],[f213,f3]) ).
fof(f220,plain,
( member(not_subclass_element(intersection(x,y),x),intersection(x,y))
| spl1_1 ),
inference(resolution,[],[f213,f2]) ).
fof(f222,plain,
( member(not_subclass_element(intersection(x,y),x),x)
| spl1_1 ),
inference(resolution,[],[f220,f21]) ).
fof(f223,plain,
( $false
| spl1_1 ),
inference(resolution,[],[f222,f219]) ).
fof(f224,plain,
spl1_1,
inference(avatar_contradiction_clause,[],[f223]) ).
fof(f225,plain,
( ~ member(not_subclass_element(x,intersection(x,y)),intersection(x,y))
| spl1_2 ),
inference(resolution,[],[f216,f3]) ).
fof(f226,plain,
( member(not_subclass_element(x,intersection(x,y)),x)
| spl1_2 ),
inference(resolution,[],[f216,f2]) ).
fof(f232,plain,
( ~ member(not_subclass_element(x,intersection(x,y)),y)
| ~ member(not_subclass_element(x,intersection(x,y)),x)
| spl1_2 ),
inference(resolution,[],[f23,f225]) ).
fof(f234,definition,
( spl1_3
<=> member(not_subclass_element(x,intersection(x,y)),x) ),
introduced(definition,[new_symbols(definition,[spl1_3])],[avatar_definition]) ).
fof(f235,plain,
( ~ member(not_subclass_element(x,intersection(x,y)),x)
| spl1_3 ),
inference(avatar_component_clause,[],[f234]) ).
fof(f237,definition,
( spl1_4
<=> member(not_subclass_element(x,intersection(x,y)),y) ),
introduced(definition,[new_symbols(definition,[spl1_4])],[avatar_definition]) ).
fof(f238,plain,
( ~ member(not_subclass_element(x,intersection(x,y)),y)
| spl1_4 ),
inference(avatar_component_clause,[],[f237]) ).
fof(f239,plain,
( ~ spl1_3
| ~ spl1_4
| spl1_2 ),
inference(avatar_split_clause,[],[f232,f215,f237,f234]) ).
fof(f240,plain,
( $false
| spl1_2
| spl1_3 ),
inference(resolution,[],[f235,f226]) ).
fof(f241,plain,
( spl1_2
| spl1_3 ),
inference(avatar_contradiction_clause,[],[f240]) ).
fof(f242,plain,
( ~ member(not_subclass_element(x,intersection(x,y)),x)
| spl1_4 ),
inference(resolution,[],[f238,f208]) ).
fof(f243,plain,
( ~ spl1_3
| spl1_4 ),
inference(avatar_split_clause,[],[f242,f237,f234]) ).
cnf(s2,plain,
( ~ spl1_1
| ~ spl1_2 ),
inference(sat_conversion,[],[f218]) ).
cnf(s3,plain,
spl1_1,
inference(sat_conversion,[],[f224]) ).
cnf(s4,plain,
( spl1_2
| ~ spl1_3
| ~ spl1_4 ),
inference(sat_conversion,[],[f239]) ).
cnf(s5,plain,
( spl1_2
| spl1_3 ),
inference(sat_conversion,[],[f241]) ).
cnf(s6,plain,
( ~ spl1_3
| spl1_4 ),
inference(sat_conversion,[],[f243]) ).
cnf(s7,plain,
~ spl1_2,
inference(rat,[],[s2,s3]) ).
cnf(s8,plain,
spl1_3,
inference(rat,[],[s5,s7]) ).
cnf(s9,plain,
spl1_4,
inference(rat,[],[s6,s8]) ).
cnf(s10,plain,
$false,
inference(rat,[],[s4,s7,s9,s8]) ).
fof(f244,plain,
$false,
inference(avatar_sat_refutation,[],[s10]) ).
%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.00/0.03 % Problem : SET183-6 : TPTP v9.3.1. Bugfixed v2.1.0.
% 0.00/0.06 % Command : run_vampire /export/starexec/sandbox2/benchmark/theBenchmark.p 300 THM
% 0.13/0.38 % Computer : n004.cluster.edu
% 0.13/0.38 % Model : x86_64 x86_64
% 0.13/0.38 % CPU : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.13/0.38 % Memory : 8046.5625MB
% 0.13/0.38 % OS : Linux 6.8.0-71-generic
% 0.13/0.38 % CPULimit : 300
% 0.13/0.38 % WCLimit : 300
% 0.13/0.38 % DateTime : Mon Sep 28 01:01:52 UTC 2026
% 0.13/0.38 % CPUTime :
% 0.13/0.38 Running run_vampire /export/starexec/sandbox2/benchmark/theBenchmark.p 300 THM
% 0.13/0.42 Running first-order theorem proving
% 0.13/0.42 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
% 2.53/1.32 % (4048311)Input is clausal, will run a generic CNF schedule.
% 2.53/1.32 % (4048322)dis-21_1_sil=8000:lcm=predicate:random_seed=3145907783:st=5:avsq=on:i=117:avsqr=1,16:sd=3:aac=none:ep=RS:fsr=off:ss=included_2999 on theBenchmark for (2999ds/117Mi)
% 2.53/1.32 % (4048322)First to succeed.
% 2.53/1.32 % (4048322)Solution written to "/export/starexec/sandbox2/tmp/vampire-proof-4048311"
% 2.53/1.32 % (4048317)lrs+10_1_ncem=casc2026/models/loop8.pt:sil=128000:npcc=on:urr=on:br=off:random_seed=2607411010:i=132376:av=off_2999 on theBenchmark for (2999ds/132376Mi)
% 2.53/1.32 % (4048319)lrs+10_1_sil=8000:sp=occurrence:random_seed=3208887773:i=107:sd=3:ss=axioms:sgt=8_2999 on theBenchmark for (2999ds/107Mi)
% 2.53/1.32 % (4048320)dis-1002_1_to=lpo:sil=16000:fd=off:random_seed=3476084171:st=1.5:i=114:aac=none:ins=7:ss=axioms:fsd=on_2999 on theBenchmark for (2999ds/114Mi)
% 2.53/1.32 % (4048318)lrs+1002_1_ncem=casc2026/models/loop8.pt:sil=128000:tgt=ground:npcc=on:sp=reverse_frequency:spb=intro:random_seed=1467265261:i=137899:s2at=10:gtgl=3:kws=precedence:add=on:bd=preordered:gtg=position_2999 on theBenchmark for (2999ds/137899Mi)
% 2.53/1.32 % (4048316)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=1463544699:i=140167_2999 on theBenchmark for (2999ds/140167Mi)
% 2.53/1.32 % (4048319)Refutation not found, incomplete strategy
% 2.53/1.32 % (4048319)------------------------------
% 2.53/1.32 % (4048319)Version: Vampire 5.0.1 (Release build, commit ea8961452 on 2026-07-16 15:14:34 +0200)
% 2.53/1.32 % (4048319)Linked with Z3 4.14.0.0 3c47fd96cf5645d0c42b2c819d9e9a84380aa721 z3-4.8.4-9178-g3c47fd96c
% 2.53/1.32 % (4048319)CaDiCaL version: 2.1.3
% 2.53/1.32 % (4048319)Termination reason: Refutation not found, incomplete strategy
% 2.53/1.32 % (4048319)Time elapsed: 0.002 s
% 2.53/1.32 % (4048319)Peak memory usage: 88 MB
% 2.53/1.32 % (4048319)Instructions burned: 1 (million)
% 2.53/1.32 % (4048320)Refutation not found, incomplete strategy
% 2.53/1.32 % (4048320)------------------------------
% 2.53/1.32 % (4048320)Version: Vampire 5.0.1 (Release build, commit ea8961452 on 2026-07-16 15:14:34 +0200)
% 2.53/1.32 % (4048320)Linked with Z3 4.14.0.0 3c47fd96cf5645d0c42b2c819d9e9a84380aa721 z3-4.8.4-9178-g3c47fd96c
% 2.53/1.32 % (4048320)CaDiCaL version: 2.1.3
% 2.53/1.32 % (4048320)Termination reason: Refutation not found, incomplete strategy
% 2.53/1.32 % (4048320)Time elapsed: 0.002 s
% 2.53/1.32 % (4048320)Peak memory usage: 88 MB
% 2.53/1.32 % (4048320)Instructions burned: 1 (million)
% 2.53/1.32 % (4048321)dis-1011_1_sil=16000:fde=unused:s2agt=70:random_seed=756467875:s2a=on:i=180:gtg=position_2999 on theBenchmark for (2999ds/180Mi)
% 2.53/1.32 % (4048322)Refutation found. Thanks to Tanya!
% 2.53/1.32 % SZS status Unsatisfiable for theBenchmark
% 2.53/1.32 % SZS output start Proof for theBenchmark
% See solution above
% 2.53/1.32 % (4048322)------------------------------
% 2.53/1.32 % (4048322)Version: Vampire 5.0.1 (Release build, commit ea8961452 on 2026-07-16 15:14:34 +0200)
% 2.53/1.32 % (4048322)Linked with Z3 4.14.0.0 3c47fd96cf5645d0c42b2c819d9e9a84380aa721 z3-4.8.4-9178-g3c47fd96c
% 2.53/1.32 % (4048322)CaDiCaL version: 2.1.3
% 2.53/1.32 % (4048322)Termination reason: Refutation
% 2.53/1.32 % (4048322)Time elapsed: 0.003 s
% 2.53/1.32 % (4048322)Peak memory usage: 89 MB
% 2.53/1.32 % (4048322)Instructions burned: 7 (million)
% 2.53/1.32 % (4048322)------------------------------
% 2.53/1.32 % (4048322)------------------------------
% 2.53/1.32 % (4048311)Success in time 0.275 s
% 2.53/1.32 % Vampire exiting
%------------------------------------------------------------------------------