%------------------------------------------------------------------------------
% File : Vampire---5.0.1
% Problem : SET120-7 : TPTP v9.3.1. Bugfixed v7.3.0.
% Transfm : none
% Format : tptp:raw
% Command : run_vampire /export/starexec/sandbox/benchmark/theBenchmark.p 300 THM
% Computer : n008.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 12:40:12 PM UTC 2026
% Result : Unsatisfiable 0.14s 1.40s
% Output : Refutation 0.14s
% Verified :
% SZS Type : Refutation
% Derivation depth : 8
% Number of leaves : 6
% Syntax : Number of formulae : 21 ( 12 unt; 1 def)
% Number of atoms : 30 ( 9 equ)
% Maximal formula atoms : 2 ( 1 avg)
% Number of connectives : 20 ( 11 ~; 8 |; 0 &)
% ( 1 <=>; 0 =>; 0 <=; 0 <~>)
% Maximal formula depth : 7 ( 2 avg)
% Maximal term depth : 4 ( 2 avg)
% Number of predicates : 4 ( 2 usr; 2 prp; 0-2 aty)
% Number of functors : 7 ( 7 usr; 3 con; 0-2 aty)
% Number of variables : 6 ( 0 sgn 6 !; 0 ?)
% Comments :
%------------------------------------------------------------------------------
fof(f14,axiom,
! [X2,X3,X0,X1] :
( ~ member(ordered_pair(X0,X1),cross_product(X2,X3))
| member(X0,X2) ),
file('/export/starexec/sandbox/benchmark/theBenchmark.p',cartesian_product1) ).
fof(f176,axiom,
! [X0] :
( second(X0) = X0
| member(ordered_pair(first(X0),second(X0)),cross_product(universal_class,universal_class)) ),
file('/export/starexec/sandbox/benchmark/theBenchmark.p',existence_of_1st_and_2nd_3) ).
fof(f178,axiom,
! [X0] :
( second(X0) = X0
| ordered_pair(first(X0),second(X0)) = X0 ),
file('/export/starexec/sandbox/benchmark/theBenchmark.p',existence_of_1st_and_2nd_5) ).
fof(f187,negated_conjecture,
~ member(x,universal_class),
file('/export/starexec/sandbox/benchmark/theBenchmark.p',prove_corollary_2_to_OP_determines_components1_1) ).
fof(f188,negated_conjecture,
second(ordered_pair(x,y)) != ordered_pair(x,y),
file('/export/starexec/sandbox/benchmark/theBenchmark.p',prove_corollary_2_to_OP_determines_components1_2) ).
fof(f189,plain,
ordered_pair(x,y) != second(ordered_pair(x,y)),
inference(reorient_equations,[],[f188]) ).
fof(f353,plain,
( ordered_pair(x,y) != ordered_pair(x,y)
| ordered_pair(x,y) = ordered_pair(first(ordered_pair(x,y)),second(ordered_pair(x,y))) ),
inference(superposition,[],[f189,f178]) ).
fof(f355,plain,
ordered_pair(x,y) = ordered_pair(first(ordered_pair(x,y)),second(ordered_pair(x,y))),
inference(trivial_inequality_removal,[],[f353]) ).
fof(f442,plain,
( ordered_pair(x,y) != ordered_pair(x,y)
| member(ordered_pair(first(ordered_pair(x,y)),second(ordered_pair(x,y))),cross_product(universal_class,universal_class)) ),
inference(superposition,[],[f189,f176]) ).
fof(f444,plain,
member(ordered_pair(first(ordered_pair(x,y)),second(ordered_pair(x,y))),cross_product(universal_class,universal_class)),
inference(trivial_inequality_removal,[],[f442]) ).
fof(f609,definition,
( spl0_17
<=> member(ordered_pair(x,y),cross_product(universal_class,universal_class)) ),
introduced(definition,[new_symbols(definition,[spl0_17])],[avatar_definition]) ).
fof(f610,plain,
( member(ordered_pair(x,y),cross_product(universal_class,universal_class))
| ~ spl0_17 ),
inference(avatar_component_clause,[],[f609]) ).
fof(f664,plain,
member(ordered_pair(x,y),cross_product(universal_class,universal_class)),
inference(forward_demodulation,[],[f444,f355]) ).
fof(f665,plain,
spl0_17,
inference(avatar_split_clause,[],[f664,f609]) ).
fof(f904,plain,
( member(x,universal_class)
| ~ spl0_17 ),
inference(resolution,[],[f610,f14]) ).
fof(f919,plain,
( $false
| ~ spl0_17 ),
inference(forward_subsumption_resolution,[],[f904,f187]) ).
fof(f920,plain,
~ spl0_17,
inference(avatar_contradiction_clause,[],[f919]) ).
cnf(s21,plain,
spl0_17,
inference(sat_conversion,[],[f665]) ).
cnf(s52,plain,
~ spl0_17,
inference(sat_conversion,[],[f920]) ).
cnf(s57,plain,
$false,
inference(rat,[],[s21,s52]) ).
fof(f937,plain,
$false,
inference(avatar_sat_refutation,[],[s57]) ).
%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.00/0.02 % Problem : SET120-7 : TPTP v9.3.1. Bugfixed v7.3.0.
% 0.00/0.05 % Command : run_vampire /export/starexec/sandbox/benchmark/theBenchmark.p 300 THM
% 0.09/0.36 % Computer : n008.cluster.edu
% 0.09/0.36 % Model : x86_64 x86_64
% 0.09/0.36 % CPU : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.09/0.36 % Memory : 8046.5625MB
% 0.09/0.36 % OS : Linux 6.8.0-71-generic
% 0.09/0.36 % CPULimit : 300
% 0.09/0.36 % WCLimit : 300
% 0.09/0.36 % DateTime : Mon Sep 28 00:49:54 UTC 2026
% 0.09/0.36 % CPUTime :
% 0.09/0.36 Running run_vampire /export/starexec/sandbox/benchmark/theBenchmark.p 300 THM
% 0.09/0.40 Running first-order theorem proving
% 0.09/0.40 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
% 0.14/1.40 % (1766572)Input is clausal, will run a generic CNF schedule.
% 0.14/1.40 % (1766580)lrs+10_1_sil=8000:sp=occurrence:random_seed=4205627746:i=107:sd=3:ss=axioms:sgt=8_2999 on theBenchmark for (2999ds/107Mi)
% 0.14/1.40 % (1766580)Refutation not found, incomplete strategy
% 0.14/1.40 % (1766580)------------------------------
% 0.14/1.40 % (1766580)Version: Vampire 5.0.1 (Release build, commit ea8961452 on 2026-07-16 15:14:34 +0200)
% 0.14/1.40 % (1766580)Linked with Z3 4.14.0.0 3c47fd96cf5645d0c42b2c819d9e9a84380aa721 z3-4.8.4-9178-g3c47fd96c
% 0.14/1.40 % (1766580)CaDiCaL version: 2.1.3
% 0.14/1.40 % (1766580)Termination reason: Refutation not found, incomplete strategy
% 0.14/1.40 % (1766580)Time elapsed: 0.001 s
% 0.14/1.40 % (1766580)Peak memory usage: 88 MB
% 0.14/1.40 % (1766580)Instructions burned: 1 (million)
% 0.14/1.40 % (1766577)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=3202999575:i=140167_2999 on theBenchmark for (2999ds/140167Mi)
% 0.14/1.40 % (1766578)lrs+10_1_ncem=casc2026/models/loop8.pt:sil=128000:npcc=on:urr=on:br=off:random_seed=4264562277:i=132376:av=off_2999 on theBenchmark for (2999ds/132376Mi)
% 0.14/1.40 % (1766579)lrs+1002_1_ncem=casc2026/models/loop8.pt:sil=128000:tgt=ground:npcc=on:sp=reverse_frequency:spb=intro:random_seed=1217412800:i=137899:s2at=10:gtgl=3:kws=precedence:add=on:bd=preordered:gtg=position_2999 on theBenchmark for (2999ds/137899Mi)
% 0.14/1.40 % (1766581)dis-1002_1_to=lpo:sil=16000:fd=off:random_seed=2522054426:st=1.5:i=114:aac=none:ins=7:ss=axioms:fsd=on_2999 on theBenchmark for (2999ds/114Mi)
% 0.14/1.40 % (1766583)dis-21_1_sil=8000:lcm=predicate:random_seed=1981130518: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)
% 0.14/1.40 % (1766582)dis-1011_1_sil=16000:fde=unused:s2agt=70:random_seed=2533460981:s2a=on:i=180:gtg=position_2999 on theBenchmark for (2999ds/180Mi)
% 0.14/1.40 % (1766582)First to succeed.
% 0.14/1.40 % (1766582)Solution written to "/export/starexec/sandbox/tmp/vampire-proof-1766572"
% 0.14/1.40 % (1766581)Instruction limit reached!
% 0.14/1.40 % (1766581)------------------------------
% 0.14/1.40 % (1766581)Version: Vampire 5.0.1 (Release build, commit ea8961452 on 2026-07-16 15:14:34 +0200)
% 0.14/1.40 % (1766581)Linked with Z3 4.14.0.0 3c47fd96cf5645d0c42b2c819d9e9a84380aa721 z3-4.8.4-9178-g3c47fd96c
% 0.14/1.40 % (1766581)CaDiCaL version: 2.1.3
% 0.14/1.40 % (1766581)Termination reason: Instruction limit
% 0.14/1.40 % (1766581)Termination phase: Saturation
% 0.14/1.40 % (1766581)Time elapsed: 0.066 s
% 0.14/1.40 % (1766581)Peak memory usage: 88 MB
% 0.14/1.40 % (1766581)Instructions burned: 114 (million)
% 0.14/1.40 % (1766583)Instruction limit reached!
% 0.14/1.40 % (1766583)------------------------------
% 0.14/1.40 % (1766583)Version: Vampire 5.0.1 (Release build, commit ea8961452 on 2026-07-16 15:14:34 +0200)
% 0.14/1.40 % (1766583)Linked with Z3 4.14.0.0 3c47fd96cf5645d0c42b2c819d9e9a84380aa721 z3-4.8.4-9178-g3c47fd96c
% 0.14/1.40 % (1766583)CaDiCaL version: 2.1.3
% 0.14/1.40 % (1766583)Termination reason: Instruction limit
% 0.14/1.40 % (1766583)Termination phase: Saturation
% 0.14/1.40 % (1766583)Time elapsed: 0.074 s
% 0.14/1.40 % (1766583)Peak memory usage: 89 MB
% 0.14/1.40 % (1766583)Instructions burned: 118 (million)
% 0.14/1.40 % (1766580)------------------------------
% 0.14/1.40 % (1766580)------------------------------
% 0.14/1.40 % (1766591)dis+1010_3_sil=8000:plsq=on:drc=off:fde=none:plsqc=1:bsd=on:plsqr=7,2:sos=on:spb=goal_then_units:random_seed=708832633:i=143:sd=2:aac=none:ss=axioms:sgt=16_2997 on theBenchmark for (2997ds/143Mi)
% 0.14/1.40 % (1766591)Refutation not found, incomplete strategy
% 0.14/1.40 % (1766591)------------------------------
% 0.14/1.40 % (1766591)Version: Vampire 5.0.1 (Release build, commit ea8961452 on 2026-07-16 15:14:34 +0200)
% 0.14/1.40 % (1766591)Linked with Z3 4.14.0.0 3c47fd96cf5645d0c42b2c819d9e9a84380aa721 z3-4.8.4-9178-g3c47fd96c
% 0.14/1.40 % (1766591)CaDiCaL version: 2.1.3
% 0.14/1.40 % (1766591)Termination reason: Refutation not found, incomplete strategy
% 0.14/1.40 % (1766591)Time elapsed: 0.003 s
% 0.14/1.40 % (1766591)Peak memory usage: 88 MB
% 0.14/1.40 % (1766591)Instructions burned: 2 (million)
% 0.14/1.40 % (1766592)ott-1010_1_to=lpo:sil=16000:sos=on:spb=units:urr=on:bce=on:br=off:random_seed=3104599324:st=3:avsq=on:s2a=on:i=189:s2at=1.2:avsqr=1,16:sd=2:bd=all:nm=64:ss=axioms:sgt=30_2997 on theBenchmark for (2997ds/189Mi)
% 0.14/1.40 % (1766592)Also succeeded, but the first one will report.
% 0.14/1.40 % (1766593)lrs-1002_1_to=lpo:sil=8000:fde=none:sos=on:random_seed=2859451654:st=4:i=219:sd=3:ss=axioms_2997 on theBenchmark for (2997ds/219Mi)
% 0.14/1.40 % (1766582)Refutation found. Thanks to Tanya!
% 0.14/1.40 % SZS status Unsatisfiable for theBenchmark
% 0.14/1.40 % SZS output start Proof for theBenchmark
% See solution above
% 0.14/1.40 % (1766582)------------------------------
% 0.14/1.40 % (1766582)Version: Vampire 5.0.1 (Release build, commit ea8961452 on 2026-07-16 15:14:34 +0200)
% 0.14/1.40 % (1766582)Linked with Z3 4.14.0.0 3c47fd96cf5645d0c42b2c819d9e9a84380aa721 z3-4.8.4-9178-g3c47fd96c
% 0.14/1.40 % (1766582)CaDiCaL version: 2.1.3
% 0.14/1.40 % (1766582)Termination reason: Refutation
% 0.14/1.40 % (1766582)Time elapsed: 0.027 s
% 0.14/1.40 % (1766582)Peak memory usage: 90 MB
% 0.14/1.40 % (1766582)Instructions burned: 34 (million)
% 0.14/1.40 % (1766582)------------------------------
% 0.14/1.40 % (1766582)------------------------------
% 0.14/1.40 % (1766572)Success in time 0.46 s
% 0.14/1.40 % Vampire exiting
%------------------------------------------------------------------------------