%------------------------------------------------------------------------------
% File : Vampire---5.0.1
% Problem : KRS187+1 : TPTP v9.3.1. Bugfixed v5.4.0.
% Transfm : none
% Format : tptp:raw
% Command : run_vampire /export/starexec/sandbox/benchmark/theBenchmark.p 300 THM
% Computer : n013.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 11:41:51 AM UTC 2026
% Result : Theorem 0.39s 1.02s
% Output : Refutation 0.39s
% Verified :
% SZS Type : Refutation
% Derivation depth : 7
% Number of leaves : 4
% Syntax : Number of formulae : 27 ( 9 unt; 0 def)
% Number of atoms : 80 ( 0 equ)
% Maximal formula atoms : 6 ( 2 avg)
% Number of connectives : 85 ( 32 ~; 28 |; 17 &)
% ( 4 <=>; 4 =>; 0 <=; 0 <~>)
% Maximal formula depth : 8 ( 5 avg)
% Maximal term depth : 3 ( 1 avg)
% Number of predicates : 4 ( 3 usr; 1 prp; 0-3 aty)
% Number of functors : 7 ( 7 usr; 2 con; 0-2 aty)
% Number of variables : 67 ( 56 !; 11 ?)
% Comments :
%------------------------------------------------------------------------------
fof(f5,axiom,
! [X0,X1] :
( ! [X2] :
( model(X2,X0)
=> model(X2,X1) )
<=> status(X0,X1,thm) ),
file('/export/starexec/sandbox/benchmark/theBenchmark.p',thm) ).
fof(f7,axiom,
! [X0,X1] :
( ( ? [X2] : model(X2,X0)
& ! [X3] : model(X3,X1) )
<=> status(X0,X1,tac) ),
file('/export/starexec/sandbox/benchmark/theBenchmark.p',tac) ).
fof(f21,axiom,
! [X0,X1] :
( ! [X2,X3] :
( status(X2,X3,X0)
=> status(X2,X3,X1) )
<=> isa(X0,X1) ),
file('/export/starexec/sandbox/benchmark/theBenchmark.p',isa) ).
fof(f33,conjecture,
isa(tac,thm),
file('/export/starexec/sandbox/benchmark/theBenchmark.p',isa_tac_thm) ).
fof(f34,negated_conjecture,
~ isa(tac,thm),
inference(negated_conjecture,[status(cth)],[f33]) ).
fof(f35,plain,
~ isa(tac,thm),
inference(flattening,[],[f34]) ).
fof(f36,plain,
! [X0,X1] :
( ! [X2,X3] :
( status(X2,X3,X0)
=> status(X2,X3,X1) )
=> isa(X0,X1) ),
inference(unused_predicate_definition_removal,[],[f21]) ).
fof(f37,plain,
! [X0,X1] :
( isa(X0,X1)
| ? [X2,X3] :
( ~ status(X2,X3,X1)
& status(X2,X3,X0) ) ),
inference(ennf_transformation,[],[f36]) ).
fof(f38,plain,
! [X0,X1] :
( ! [X2] :
( model(X2,X1)
| ~ model(X2,X0) )
<=> status(X0,X1,thm) ),
inference(ennf_transformation,[],[f5]) ).
fof(f40,plain,
! [X0,X1] :
( isa(X0,X1)
| ( ~ status(sK0(X0,X1),sK1(X0,X1),X1)
& status(sK0(X0,X1),sK1(X0,X1),X0) ) ),
inference(skolemize,[status(esa),new_symbols(skolem,[sK0,sK1]),skolemize(X2,sK0(X0,X1)),skolemize(X3,sK1(X0,X1))],[f37]) ).
fof(f41,plain,
! [X0,X1] :
( ( ! [X2] :
( model(X2,X1)
| ~ model(X2,X0) )
| ~ status(X0,X1,thm) )
& ( status(X0,X1,thm)
| ? [X2] :
( ~ model(X2,X1)
& model(X2,X0) ) ) ),
inference(nnf_transformation,[],[f38]) ).
fof(f42,plain,
! [X0,X1] :
( ( ! [X2] :
( model(X2,X1)
| ~ model(X2,X0) )
| ~ status(X0,X1,thm) )
& ( status(X0,X1,thm)
| ? [X3] :
( ~ model(X3,X1)
& model(X3,X0) ) ) ),
inference(rectify,[],[f41]) ).
fof(f43,plain,
! [X0,X1] :
( ( ! [X2] :
( model(X2,X1)
| ~ model(X2,X0) )
| ~ status(X0,X1,thm) )
& ( status(X0,X1,thm)
| ( ~ model(sK2(X0,X1),X1)
& model(sK2(X0,X1),X0) ) ) ),
inference(skolemize,[status(esa),new_symbols(skolem,[sK2]),skolemize(X3,sK2(X0,X1))],[f42]) ).
fof(f44,plain,
! [X0,X1] :
( ( ( ? [X2] : model(X2,X0)
& ! [X3] : model(X3,X1) )
| ~ status(X0,X1,tac) )
& ( status(X0,X1,tac)
| ! [X2] : ~ model(X2,X0)
| ? [X3] : ~ model(X3,X1) ) ),
inference(nnf_transformation,[],[f7]) ).
fof(f45,plain,
! [X0,X1] :
( ( ( ? [X2] : model(X2,X0)
& ! [X3] : model(X3,X1) )
| ~ status(X0,X1,tac) )
& ( status(X0,X1,tac)
| ! [X2] : ~ model(X2,X0)
| ? [X3] : ~ model(X3,X1) ) ),
inference(flattening,[],[f44]) ).
fof(f46,plain,
! [X0,X1] :
( ( ( ? [X2] : model(X2,X0)
& ! [X3] : model(X3,X1) )
| ~ status(X0,X1,tac) )
& ( status(X0,X1,tac)
| ! [X4] : ~ model(X4,X0)
| ? [X5] : ~ model(X5,X1) ) ),
inference(rectify,[],[f45]) ).
fof(f47,plain,
! [X0,X1] :
( ( ( model(sK3(X0),X0)
& ! [X3] : model(X3,X1) )
| ~ status(X0,X1,tac) )
& ( status(X0,X1,tac)
| ! [X4] : ~ model(X4,X0)
| ~ model(sK4(X1),X1) ) ),
inference(skolemize,[status(esa),new_symbols(skolem,[sK3,sK4]),skolemize(X2,sK3(X0)),skolemize(X5,sK4(X1))],[f46]) ).
fof(f54,plain,
~ isa(tac,thm),
inference(cnf_transformation,[],[f35]) ).
fof(f55,plain,
! [X0,X1] :
( isa(X0,X1)
| status(sK0(X0,X1),sK1(X0,X1),X0) ),
inference(cnf_transformation,[],[f40]) ).
fof(f56,plain,
! [X0,X1] :
( isa(X0,X1)
| ~ status(sK0(X0,X1),sK1(X0,X1),X1) ),
inference(cnf_transformation,[],[f40]) ).
fof(f58,plain,
! [X0,X1] :
( status(X0,X1,thm)
| ~ model(sK2(X0,X1),X1) ),
inference(cnf_transformation,[],[f43]) ).
fof(f61,plain,
! [X3,X0,X1] :
( ~ status(X0,X1,tac)
| model(X3,X1) ),
inference(cnf_transformation,[],[f47]) ).
fof(f88,plain,
status(sK0(tac,thm),sK1(tac,thm),tac),
inference(resolution,[],[f55,f54]) ).
fof(f90,plain,
! [X0] : model(X0,sK1(tac,thm)),
inference(resolution,[],[f88,f61]) ).
fof(f91,plain,
~ status(sK0(tac,thm),sK1(tac,thm),thm),
inference(resolution,[],[f56,f54]) ).
fof(f125,plain,
~ model(sK2(sK0(tac,thm),sK1(tac,thm)),sK1(tac,thm)),
inference(resolution,[],[f91,f58]) ).
fof(f419,plain,
$false,
inference(resolution,[],[f125,f90]) ).
%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.00/0.03 % Problem : KRS187+1 : TPTP v9.3.1. Bugfixed v5.4.0.
% 0.00/0.06 % Command : run_vampire /export/starexec/sandbox/benchmark/theBenchmark.p 300 THM
% 0.13/0.38 % Computer : n013.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 : Sun Sep 27 13:35:06 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
% 0.39/1.02 % (235348)Detected formulas, will run a generic FOF schedule.
% 0.39/1.02 % (235359)dis-21_1_sil=8000:lcm=predicate:random_seed=3250078131: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)
% 0.39/1.02 % (235359)First to succeed.
% 0.39/1.02 % (235359)Solution written to "/export/starexec/sandbox/tmp/vampire-proof-235348"
% 0.39/1.02 % (235353)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=3855488843:i=141193_2999 on theBenchmark for (2999ds/141193Mi)
% 0.39/1.02 % (235356)lrs+1010_1_to=lpo:sil=32000:sos=on:spb=goal_then_units:bce=on:random_seed=699913921:i=109:sd=1:ins=1:gsp=on:ss=axioms_2999 on theBenchmark for (2999ds/109Mi)
% 0.39/1.02 % (235357)dis-1010_2:3_sil=16000:sp=reverse_frequency:random_seed=3235175374:i=119:av=off:ss=axioms_2999 on theBenchmark for (2999ds/119Mi)
% 0.39/1.02 % (235354)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=1314868811:i=134677:sd=20:aac=none:nm=16:ss=included:sgt=10_2999 on theBenchmark for (2999ds/134677Mi)
% 0.39/1.02 % (235355)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=3126108933:i=141695:sd=1:nm=32:gsp=on:ss=included_2999 on theBenchmark for (2999ds/141695Mi)
% 0.39/1.02 % (235358)dis-1011_1_sil=16000:fde=unused:s2agt=70:random_seed=1567048025:s2a=on:i=139:gtg=position_2999 on theBenchmark for (2999ds/139Mi)
% 0.39/1.02 % (235356)Refutation not found, incomplete strategy
% 0.39/1.02 % (235356)------------------------------
% 0.39/1.02 % (235356)Version: Vampire 5.0.1 (Release build, commit ea8961452 on 2026-07-16 15:14:34 +0200)
% 0.39/1.02 % (235356)Linked with Z3 4.14.0.0 3c47fd96cf5645d0c42b2c819d9e9a84380aa721 z3-4.8.4-9178-g3c47fd96c
% 0.39/1.02 % (235356)CaDiCaL version: 2.1.3
% 0.39/1.02 % (235356)Termination reason: Refutation not found, incomplete strategy
% 0.39/1.02 % (235356)Time elapsed: 0.001 s
% 0.39/1.02 % (235356)Peak memory usage: 88 MB
% 0.39/1.02 % (235357)Also succeeded, but the first one will report.
% 0.39/1.02 % (235358)Also succeeded, but the first one will report.
% 0.39/1.02 % (235359)Refutation found. Thanks to Tanya!
% 0.39/1.02 % SZS status Theorem for theBenchmark
% 0.39/1.02 % SZS output start Proof for theBenchmark
% See solution above
% 0.39/1.02 % (235359)------------------------------
% 0.39/1.02 % (235359)Version: Vampire 5.0.1 (Release build, commit ea8961452 on 2026-07-16 15:14:34 +0200)
% 0.39/1.02 % (235359)Linked with Z3 4.14.0.0 3c47fd96cf5645d0c42b2c819d9e9a84380aa721 z3-4.8.4-9178-g3c47fd96c
% 0.39/1.02 % (235359)CaDiCaL version: 2.1.3
% 0.39/1.02 % (235359)Termination reason: Refutation
% 0.39/1.02 % (235359)Time elapsed: 0.004 s
% 0.39/1.02 % (235359)Peak memory usage: 88 MB
% 0.39/1.02 % (235359)Instructions burned: 7 (million)
% 0.39/1.02 % (235359)------------------------------
% 0.39/1.02 % (235359)------------------------------
% 0.39/1.02 % (235348)Success in time 0.298 s
% 0.39/1.02 % Vampire exiting
%------------------------------------------------------------------------------