%------------------------------------------------------------------------------
% File : Vampire-SAT---5.0.1
% Problem : SET803+4 : TPTP v9.3.1. Released v3.2.0.
% Transfm : none
% Format : tptp:raw
% Command : run_vampire /export/starexec/sandbox/benchmark/theBenchmark.p 300 SAT
% Computer : n001.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 12:44:39 PM UTC 2026
% Result : Theorem 0.10s 0.44s
% Output : Refutation 0.10s
% Verified :
% SZS Type : Refutation
% Derivation depth : 7
% Number of leaves : 4
% Syntax : Number of formulae : 39 ( 8 unt; 0 def)
% Number of atoms : 189 ( 19 equ)
% Maximal formula atoms : 14 ( 4 avg)
% Number of connectives : 218 ( 68 ~; 70 |; 50 &)
% ( 4 <=>; 26 =>; 0 <=; 0 <~>)
% Maximal formula depth : 14 ( 8 avg)
% Maximal term depth : 1 ( 1 avg)
% Number of predicates : 7 ( 5 usr; 1 prp; 0-3 aty)
% Number of functors : 5 ( 5 usr; 5 con; 0-0 aty)
% Number of variables : 140 ( 128 !; 12 ?)
% Comments :
%------------------------------------------------------------------------------
fof(f1,axiom,
! [X0,X1] :
( order(X0,X1)
<=> ( ! [X2] :
( member(X2,X1)
=> apply(X0,X2,X2) )
& ! [X2,X3] :
( ( member(X2,X1)
& member(X3,X1) )
=> ( ( apply(X0,X2,X3)
& apply(X0,X3,X2) )
=> X2 = X3 ) )
& ! [X2,X3,X4] :
( ( member(X2,X1)
& member(X3,X1)
& member(X4,X1) )
=> ( ( apply(X0,X2,X3)
& apply(X0,X3,X4) )
=> apply(X0,X2,X4) ) ) ) ),
file('/export/starexec/sandbox/benchmark/Axioms/SET006+3.ax',order) ).
fof(f5,axiom,
! [X0,X1,X2] :
( greatest(X2,X0,X1)
<=> ( member(X2,X1)
& ! [X3] :
( member(X3,X1)
=> apply(X0,X3,X2) ) ) ),
file('/export/starexec/sandbox/benchmark/Axioms/SET006+3.ax',greatest) ).
fof(f7,axiom,
! [X0,X1,X2] :
( max(X2,X0,X1)
<=> ( member(X2,X1)
& ! [X3] :
( ( member(X3,X1)
& apply(X0,X2,X3) )
=> X2 = X3 ) ) ),
file('/export/starexec/sandbox/benchmark/Axioms/SET006+3.ax',max) ).
fof(f11,conjecture,
! [X0,X1] :
( order(X0,X1)
=> ! [X2,X3] :
( ( max(X2,X0,X1)
& max(X3,X0,X1)
& X2 != X3 )
=> ~ ? [X4] : greatest(X4,X0,X1) ) ),
file('/export/starexec/sandbox/benchmark/theBenchmark.p',thIV15) ).
fof(f12,negated_conjecture,
~ ! [X0,X1] :
( order(X0,X1)
=> ! [X2,X3] :
( ( max(X2,X0,X1)
& max(X3,X0,X1)
& X2 != X3 )
=> ~ ? [X4] : greatest(X4,X0,X1) ) ),
inference(negated_conjecture,[status(cth)],[f11]) ).
fof(f13,plain,
! [X0,X1] :
( order(X0,X1)
<=> ( ! [X2] :
( member(X2,X1)
=> apply(X0,X2,X2) )
& ! [X3,X4] :
( ( member(X3,X1)
& member(X4,X1) )
=> ( ( apply(X0,X3,X4)
& apply(X0,X4,X3) )
=> X3 = X4 ) )
& ! [X5,X6,X7] :
( ( member(X5,X1)
& member(X6,X1)
& member(X7,X1) )
=> ( ( apply(X0,X5,X6)
& apply(X0,X6,X7) )
=> apply(X0,X5,X7) ) ) ) ),
inference(rectify,[],[f1]) ).
fof(f14,plain,
! [X0,X1,X2] :
( max(X2,X0,X1)
=> ( member(X2,X1)
& ! [X3] :
( ( member(X3,X1)
& apply(X0,X2,X3) )
=> X2 = X3 ) ) ),
inference(unused_predicate_definition_removal,[],[f7]) ).
fof(f15,plain,
! [X0,X1,X2] :
( greatest(X2,X0,X1)
=> ( member(X2,X1)
& ! [X3] :
( member(X3,X1)
=> apply(X0,X3,X2) ) ) ),
inference(unused_predicate_definition_removal,[],[f5]) ).
fof(f16,plain,
! [X0,X1] :
( order(X0,X1)
=> ( ! [X2] :
( member(X2,X1)
=> apply(X0,X2,X2) )
& ! [X3,X4] :
( ( member(X3,X1)
& member(X4,X1) )
=> ( ( apply(X0,X3,X4)
& apply(X0,X4,X3) )
=> X3 = X4 ) )
& ! [X5,X6,X7] :
( ( member(X5,X1)
& member(X6,X1)
& member(X7,X1) )
=> ( ( apply(X0,X5,X6)
& apply(X0,X6,X7) )
=> apply(X0,X5,X7) ) ) ) ),
inference(unused_predicate_definition_removal,[],[f13]) ).
fof(f17,plain,
! [X0,X1] :
( ( ! [X2] :
( apply(X0,X2,X2)
| ~ member(X2,X1) )
& ! [X3,X4] :
( X3 = X4
| ~ apply(X0,X3,X4)
| ~ apply(X0,X4,X3)
| ~ member(X3,X1)
| ~ member(X4,X1) )
& ! [X5,X6,X7] :
( apply(X0,X5,X7)
| ~ apply(X0,X5,X6)
| ~ apply(X0,X6,X7)
| ~ member(X5,X1)
| ~ member(X6,X1)
| ~ member(X7,X1) ) )
| ~ order(X0,X1) ),
inference(ennf_transformation,[],[f16]) ).
fof(f18,plain,
! [X0,X1] :
( ( ! [X2] :
( apply(X0,X2,X2)
| ~ member(X2,X1) )
& ! [X3,X4] :
( X3 = X4
| ~ apply(X0,X3,X4)
| ~ apply(X0,X4,X3)
| ~ member(X3,X1)
| ~ member(X4,X1) )
& ! [X5,X6,X7] :
( apply(X0,X5,X7)
| ~ apply(X0,X5,X6)
| ~ apply(X0,X6,X7)
| ~ member(X5,X1)
| ~ member(X6,X1)
| ~ member(X7,X1) ) )
| ~ order(X0,X1) ),
inference(flattening,[],[f17]) ).
fof(f19,plain,
! [X0,X1,X2] :
( ( member(X2,X1)
& ! [X3] :
( apply(X0,X3,X2)
| ~ member(X3,X1) ) )
| ~ greatest(X2,X0,X1) ),
inference(ennf_transformation,[],[f15]) ).
fof(f20,plain,
! [X0,X1,X2] :
( ( member(X2,X1)
& ! [X3] :
( X2 = X3
| ~ member(X3,X1)
| ~ apply(X0,X2,X3) ) )
| ~ max(X2,X0,X1) ),
inference(ennf_transformation,[],[f14]) ).
fof(f21,plain,
! [X0,X1,X2] :
( ( member(X2,X1)
& ! [X3] :
( X2 = X3
| ~ member(X3,X1)
| ~ apply(X0,X2,X3) ) )
| ~ max(X2,X0,X1) ),
inference(flattening,[],[f20]) ).
fof(f22,plain,
? [X0,X1] :
( ? [X2,X3] :
( ? [X4] : greatest(X4,X0,X1)
& max(X2,X0,X1)
& max(X3,X0,X1)
& X2 != X3 )
& order(X0,X1) ),
inference(ennf_transformation,[],[f12]) ).
fof(f23,plain,
? [X0,X1] :
( ? [X2,X3] :
( ? [X4] : greatest(X4,X0,X1)
& max(X2,X0,X1)
& max(X3,X0,X1)
& X2 != X3 )
& order(X0,X1) ),
inference(flattening,[],[f22]) ).
fof(f24,plain,
( greatest(sK4,sK0,sK1)
& max(sK2,sK0,sK1)
& max(sK3,sK0,sK1)
& sK2 != sK3
& order(sK0,sK1) ),
inference(skolemize,[status(esa),new_symbols(skolem,[sK0,sK1,sK2,sK3,sK4]),skolemize(X0,sK0),skolemize(X1,sK1),skolemize(X2,sK2),skolemize(X3,sK3),skolemize(X4,sK4)],[f23]) ).
fof(f25,plain,
! [X0,X1,X6,X7,X5] :
( apply(X0,X5,X7)
| ~ apply(X0,X5,X6)
| ~ apply(X0,X6,X7)
| ~ member(X5,X1)
| ~ member(X6,X1)
| ~ member(X7,X1)
| ~ order(X0,X1) ),
inference(cnf_transformation,[],[f18]) ).
fof(f26,plain,
! [X3,X0,X1,X4] :
( X3 = X4
| ~ apply(X0,X3,X4)
| ~ apply(X0,X4,X3)
| ~ member(X3,X1)
| ~ member(X4,X1)
| ~ order(X0,X1) ),
inference(cnf_transformation,[],[f18]) ).
fof(f27,plain,
! [X2,X0,X1] :
( apply(X0,X2,X2)
| ~ member(X2,X1)
| ~ order(X0,X1) ),
inference(cnf_transformation,[],[f18]) ).
fof(f28,plain,
! [X2,X3,X0,X1] :
( apply(X0,X3,X2)
| ~ member(X3,X1)
| ~ greatest(X2,X0,X1) ),
inference(cnf_transformation,[],[f19]) ).
fof(f29,plain,
! [X2,X0,X1] :
( member(X2,X1)
| ~ greatest(X2,X0,X1) ),
inference(cnf_transformation,[],[f19]) ).
fof(f30,plain,
! [X2,X3,X0,X1] :
( X2 = X3
| ~ member(X3,X1)
| ~ apply(X0,X2,X3)
| ~ max(X2,X0,X1) ),
inference(cnf_transformation,[],[f21]) ).
fof(f31,plain,
! [X2,X0,X1] :
( member(X2,X1)
| ~ max(X2,X0,X1) ),
inference(cnf_transformation,[],[f21]) ).
fof(f32,plain,
order(sK0,sK1),
inference(cnf_transformation,[],[f24]) ).
fof(f33,plain,
sK2 != sK3,
inference(cnf_transformation,[],[f24]) ).
fof(f34,plain,
max(sK3,sK0,sK1),
inference(cnf_transformation,[],[f24]) ).
fof(f35,plain,
max(sK2,sK0,sK1),
inference(cnf_transformation,[],[f24]) ).
fof(f36,plain,
greatest(sK4,sK0,sK1),
inference(cnf_transformation,[],[f24]) ).
fof(f37,plain,
! [X2,X0,X1] :
( ~ apply(X0,X1,X1)
| member(X1,X2)
| order(X0,X2) ),
inference(consistent_polarity_flipping,[],[f27]) ).
fof(f38,plain,
! [X2,X3,X0,X1] :
( X0 = X1
| apply(X2,X0,X1)
| apply(X2,X1,X0)
| member(X0,X3)
| member(X1,X3)
| order(X2,X3) ),
inference(consistent_polarity_flipping,[],[f26]) ).
fof(f39,plain,
! [X2,X3,X0,X1,X4] :
( ~ apply(X0,X1,X2)
| apply(X0,X1,X3)
| apply(X0,X3,X2)
| member(X1,X4)
| member(X3,X4)
| member(X2,X4)
| order(X0,X4) ),
inference(consistent_polarity_flipping,[],[f25]) ).
fof(f40,plain,
! [X2,X0,X1] :
( ~ member(X0,X1)
| greatest(X0,X2,X1) ),
inference(consistent_polarity_flipping,[],[f29]) ).
fof(f41,plain,
! [X2,X3,X0,X1] :
( ~ apply(X0,X1,X2)
| member(X1,X3)
| greatest(X2,X0,X3) ),
inference(consistent_polarity_flipping,[],[f28]) ).
fof(f42,plain,
! [X2,X0,X1] :
( ~ member(X0,X1)
| ~ max(X0,X2,X1) ),
inference(consistent_polarity_flipping,[],[f31]) ).
fof(f43,plain,
! [X2,X3,X0,X1] :
( X0 = X1
| member(X1,X2)
| apply(X3,X0,X1)
| ~ max(X0,X3,X2) ),
inference(consistent_polarity_flipping,[],[f30]) ).
fof(f44,plain,
~ greatest(sK4,sK0,sK1),
inference(consistent_polarity_flipping,[],[f36]) ).
fof(f45,plain,
~ order(sK0,sK1),
inference(consistent_polarity_flipping,[],[f32]) ).
fof(f51,plain,
$false,
inference(finite_model_not_found_(exhaustively_excluded_all_possible_domain_size_assignments),[],[f37,f38,f39,f40,f41,f42,f43,f44,f35,f34,f33,f45]) ).
%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.00/0.02 % Problem : SET803+4 : TPTP v9.3.1. Released v3.2.0.
% 0.00/0.05 % Command : run_vampire /export/starexec/sandbox/benchmark/theBenchmark.p 300 SAT
% 0.10/0.37 % Computer : n001.cluster.edu
% 0.10/0.37 % Model : x86_64 x86_64
% 0.10/0.37 % CPU : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.10/0.37 % Memory : 8046.5625MB
% 0.10/0.37 % OS : Linux 6.8.0-71-generic
% 0.10/0.37 % CPULimit : 300
% 0.10/0.37 % WCLimit : 300
% 0.10/0.37 % DateTime : Mon Sep 28 02:56:47 UTC 2026
% 0.10/0.37 % CPUTime :
% 0.10/0.37 Running run_vampire /export/starexec/sandbox/benchmark/theBenchmark.p 300 SAT
% 0.10/0.40 Running first-order model finding
% 0.10/0.40 Running: /export/starexec/sandbox/solver/bin/vampire-ho --input_syntax tptp --output_axiom_names on --mode casc --intent sat -m 16384 --cores 7 -t 300 /export/starexec/sandbox/benchmark/theBenchmark.p
% 0.10/0.44 % (4167270)Will run a generic schedule for satisfiability detection.
% 0.10/0.44 % (4167275)fmb+10_1_sas=cadical:bce=on:rp=on:random_seed=3240555118_2999 on theBenchmark for (2999ds/0Mi)
% 0.10/0.44 % Detected minimum model sizes of [1]
% 0.10/0.44 % Detected maximum model sizes of [5]
% 0.10/0.44 % TRYING [1]
% 0.10/0.44 % TRYING [2]
% 0.10/0.44 % TRYING [3]
% 0.10/0.44 % (4167275) found proof, printing to "/export/starexec/sandbox/tmp/vampire-proof-4167270-4167275"...
% 0.10/0.44 % (4167275)...printing done.
% 0.10/0.44 % (4167275)Refutation found. Thanks to Tanya!
% 0.10/0.44 % SZS status Theorem for theBenchmark
% 0.10/0.44 % SZS output start Proof for theBenchmark
% See solution above
% 0.10/0.44 % (4167275)------------------------------
% 0.10/0.44 % (4167275)Version: Vampire 5.0.1 (Release build, commit 5ef7c2677 on 2026-07-16 16:54:09 +0200)
% 0.10/0.44 % (4167275)Linked with Z3 4.14.0.0 3c47fd96cf5645d0c42b2c819d9e9a84380aa721 z3-4.8.4-9178-g3c47fd96c
% 0.10/0.44 % (4167275)CaDiCaL version: 2.1.3
% 0.10/0.44 % (4167275)Termination reason: Refutation
% 0.10/0.44 % (4167275)Time elapsed: 0.002 s
% 0.10/0.44 % (4167275)Peak memory usage: 11 MB
% 0.10/0.44 % (4167275)Instructions burned: 3 (million)
% 0.10/0.44 % (4167270)Success in time 0.027 s
% 0.10/0.44 % Vampire exiting
%------------------------------------------------------------------------------