%------------------------------------------------------------------------------
% File : Vampire---5.0.1
% Problem : MGT049+1 : TPTP v9.3.1. Released v2.4.0.
% Transfm : none
% Format : tptp:raw
% Command : run_vampire /export/starexec/sandbox/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 12:02:13 PM UTC 2026
% Result : Theorem 3.31s 1.27s
% Output : Refutation 3.31s
% Verified :
% SZS Type : Refutation
% Derivation depth : 8
% Number of leaves : 3
% Syntax : Number of formulae : 17 ( 4 unt; 0 def)
% Number of atoms : 42 ( 18 equ)
% Maximal formula atoms : 5 ( 2 avg)
% Number of connectives : 41 ( 16 ~; 9 |; 10 &)
% ( 0 <=>; 6 =>; 0 <=; 0 <~>)
% Maximal formula depth : 8 ( 5 avg)
% Maximal term depth : 2 ( 1 avg)
% Number of predicates : 4 ( 2 usr; 1 prp; 0-2 aty)
% Number of functors : 6 ( 6 usr; 3 con; 0-2 aty)
% Number of variables : 35 ( 29 !; 6 ?)
% Comments :
%------------------------------------------------------------------------------
fof(f7,axiom,
! [X0,X1,X2] :
( organization(X0)
=> ( ( greater(external_ties(X0,X2),external_ties(X0,X1))
=> greater(position(X0,X2),position(X0,X1)) )
& ( external_ties(X0,X2) = external_ties(X0,X1)
=> position(X0,X2) = position(X0,X1) ) ) ),
file('/export/starexec/sandbox/benchmark/theBenchmark.p',assumption_6) ).
fof(f8,axiom,
! [X0,X1,X2] :
( organization(X0)
=> external_ties(X0,X2) = external_ties(X0,X1) ),
file('/export/starexec/sandbox/benchmark/theBenchmark.p',assumption_11) ).
fof(f9,conjecture,
! [X0,X1,X2] :
( ( organization(X0)
& greater(age(X0,X2),age(X0,X1)) )
=> position(X0,X2) = position(X0,X1) ),
file('/export/starexec/sandbox/benchmark/theBenchmark.p',lemma_6) ).
fof(f10,negated_conjecture,
~ ! [X0,X1,X2] :
( ( organization(X0)
& greater(age(X0,X2),age(X0,X1)) )
=> position(X0,X2) = position(X0,X1) ),
inference(negated_conjecture,[status(cth)],[f9]) ).
fof(f11,plain,
? [X0,X1,X2] :
( position(X0,X2) != position(X0,X1)
& organization(X0)
& greater(age(X0,X2),age(X0,X1)) ),
inference(ennf_transformation,[],[f10]) ).
fof(f12,plain,
? [X0,X1,X2] :
( position(X0,X2) != position(X0,X1)
& organization(X0)
& greater(age(X0,X2),age(X0,X1)) ),
inference(flattening,[],[f11]) ).
fof(f13,plain,
! [X0,X1,X2] :
( ( ( greater(position(X0,X2),position(X0,X1))
| ~ greater(external_ties(X0,X2),external_ties(X0,X1)) )
& ( position(X0,X2) = position(X0,X1)
| external_ties(X0,X2) != external_ties(X0,X1) ) )
| ~ organization(X0) ),
inference(ennf_transformation,[],[f7]) ).
fof(f17,plain,
! [X0,X1,X2] :
( external_ties(X0,X2) = external_ties(X0,X1)
| ~ organization(X0) ),
inference(ennf_transformation,[],[f8]) ).
fof(f18,plain,
( position(sK0,sK2) != position(sK0,sK1)
& organization(sK0)
& greater(age(sK0,sK2),age(sK0,sK1)) ),
inference(skolemize,[status(esa),new_symbols(skolem,[sK0,sK1,sK2]),skolemize(X0,sK0),skolemize(X1,sK1),skolemize(X2,sK2)],[f12]) ).
fof(f20,plain,
organization(sK0),
inference(cnf_transformation,[],[f18]) ).
fof(f21,plain,
position(sK0,sK2) != position(sK0,sK1),
inference(cnf_transformation,[],[f18]) ).
fof(f22,plain,
! [X2,X0,X1] :
( position(X0,X2) = position(X0,X1)
| external_ties(X0,X2) != external_ties(X0,X1)
| ~ organization(X0) ),
inference(cnf_transformation,[],[f13]) ).
fof(f26,plain,
! [X2,X0,X1] :
( external_ties(X0,X2) = external_ties(X0,X1)
| ~ organization(X0) ),
inference(cnf_transformation,[],[f17]) ).
fof(f48,plain,
! [X2,X0,X1] :
( position(X0,X2) = position(X0,X1)
| ~ organization(X0) ),
inference(forward_subsumption_resolution,[],[f22,f26]) ).
fof(f59,plain,
! [X0] :
( position(sK0,sK1) != position(sK0,X0)
| ~ organization(sK0) ),
inference(superposition,[],[f21,f48]) ).
fof(f64,plain,
! [X0] : position(sK0,sK1) != position(sK0,X0),
inference(forward_subsumption_resolution,[],[f59,f20]) ).
fof(f70,plain,
$false,
inference(equality_resolution,[],[f64]) ).
%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.00/0.03 % Problem : MGT049+1 : TPTP v9.3.1. Released v2.4.0.
% 0.00/0.05 % Command : run_vampire /export/starexec/sandbox/benchmark/theBenchmark.p 300 THM
% 0.13/0.39 % Computer : n026.cluster.edu
% 0.13/0.39 % Model : x86_64 x86_64
% 0.13/0.39 % CPU : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.13/0.39 % Memory : 8046.5625MB
% 0.13/0.39 % OS : Linux 6.8.0-71-generic
% 0.13/0.39 % CPULimit : 300
% 0.13/0.39 % WCLimit : 300
% 0.13/0.39 % DateTime : Sun Sep 27 17:30:41 UTC 2026
% 0.13/0.39 % CPUTime :
% 0.13/0.39 Running run_vampire /export/starexec/sandbox/benchmark/theBenchmark.p 300 THM
% 0.13/0.42 Running first-order theorem proving
% 0.13/0.42 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
% 3.31/1.27 % (3086195)Detected formulas, will run a generic FOF schedule.
% 3.31/1.27 % (3086262)lrs+1010_1_to=lpo:sil=32000:sos=on:spb=goal_then_units:bce=on:random_seed=3959178146:i=109:sd=1:ins=1:gsp=on:ss=axioms_2999 on theBenchmark for (2999ds/109Mi)
% 3.31/1.27 % (3086260)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=3459622979:i=134677:sd=20:aac=none:nm=16:ss=included:sgt=10_2999 on theBenchmark for (2999ds/134677Mi)
% 3.31/1.27 % (3086258)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=102063849:i=141193_2999 on theBenchmark for (2999ds/141193Mi)
% 3.31/1.27 % (3086263)dis-1010_2:3_sil=16000:sp=reverse_frequency:random_seed=856531812:i=119:av=off:ss=axioms_2999 on theBenchmark for (2999ds/119Mi)
% 3.31/1.27 % (3086266)dis-21_1_sil=8000:lcm=predicate:random_seed=3378245719: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)
% 3.31/1.27 % (3086262)Refutation not found, incomplete strategy
% 3.31/1.27 % (3086262)------------------------------
% 3.31/1.27 % (3086262)Version: Vampire 5.0.1 (Release build, commit ea8961452 on 2026-07-16 15:14:34 +0200)
% 3.31/1.27 % (3086262)Linked with Z3 4.14.0.0 3c47fd96cf5645d0c42b2c819d9e9a84380aa721 z3-4.8.4-9178-g3c47fd96c
% 3.31/1.27 % (3086262)CaDiCaL version: 2.1.3
% 3.31/1.27 % (3086262)Termination reason: Refutation not found, incomplete strategy
% 3.31/1.27 % (3086262)Time elapsed: 0.001 s
% 3.31/1.27 % (3086262)Peak memory usage: 88 MB
% 3.31/1.27 % (3086263)First to succeed.
% 3.31/1.27 % (3086263)Solution written to "/export/starexec/sandbox/tmp/vampire-proof-3086195"
% 3.31/1.27 % (3086261)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=2977892449:i=141695:sd=1:nm=32:gsp=on:ss=included_2999 on theBenchmark for (2999ds/141695Mi)
% 3.31/1.27 % (3086266)Also succeeded, but the first one will report.
% 3.31/1.27 % (3086265)dis-1011_1_sil=16000:fde=unused:s2agt=70:random_seed=1927975686:s2a=on:i=139:gtg=position_2999 on theBenchmark for (2999ds/139Mi)
% 3.31/1.27 % (3086265)Also succeeded, but the first one will report.
% 3.31/1.27 % (3086262)------------------------------
% 3.31/1.27 % (3086262)------------------------------
% 3.31/1.27 % (3086263)Refutation found. Thanks to Tanya!
% 3.31/1.27 % SZS status Theorem for theBenchmark
% 3.31/1.27 % SZS output start Proof for theBenchmark
% See solution above
% 3.31/1.27 % (3086263)------------------------------
% 3.31/1.27 % (3086263)Version: Vampire 5.0.1 (Release build, commit ea8961452 on 2026-07-16 15:14:34 +0200)
% 3.31/1.27 % (3086263)Linked with Z3 4.14.0.0 3c47fd96cf5645d0c42b2c819d9e9a84380aa721 z3-4.8.4-9178-g3c47fd96c
% 3.31/1.27 % (3086263)CaDiCaL version: 2.1.3
% 3.31/1.27 % (3086263)Termination reason: Refutation
% 3.31/1.27 % (3086263)Time elapsed: 0.003 s
% 3.31/1.27 % (3086263)Peak memory usage: 88 MB
% 3.31/1.27 % (3086263)Instructions burned: 2 (million)
% 3.31/1.27 % (3086263)------------------------------
% 3.31/1.27 % (3086263)------------------------------
% 3.31/1.27 % (3086195)Success in time 0.423 s
% 3.31/1.27 % Vampire exiting
%------------------------------------------------------------------------------