%------------------------------------------------------------------------------
% File : Vampire-SAT---5.0.1
% Problem : GRP004-2 : TPTP v9.3.1. Released v1.0.0.
% Transfm : none
% Format : tptp:raw
% Command : run_vampire /export/starexec/sandbox2/benchmark/theBenchmark.p 300 SAT
% Computer : n002.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 10:16:20 AM UTC 2026
% Result : Unsatisfiable 0.10s 0.46s
% Output : Refutation 0.10s
% Verified :
% SZS Type : Refutation
% Derivation depth : 6
% Number of leaves : 6
% Syntax : Number of formulae : 16 ( 8 unt; 0 def)
% Number of atoms : 31 ( 0 equ)
% Maximal formula atoms : 4 ( 1 avg)
% Number of connectives : 31 ( 16 ~; 15 |; 0 &)
% ( 0 <=>; 0 =>; 0 <=; 0 <~>)
% Maximal formula depth : 11 ( 5 avg)
% Maximal term depth : 3 ( 1 avg)
% Number of predicates : 2 ( 1 usr; 1 prp; 0-3 aty)
% Number of functors : 4 ( 4 usr; 2 con; 0-2 aty)
% Number of variables : 40 ( 40 !; 0 ?)
% Comments :
%------------------------------------------------------------------------------
fof(f1,axiom,
! [X0] : product(identity,X0,X0),
file('/export/starexec/sandbox2/benchmark/Axioms/GRP005-0.ax',left_identity) ).
fof(f2,axiom,
! [X0] : product(inverse(X0),X0,identity),
file('/export/starexec/sandbox2/benchmark/Axioms/GRP005-0.ax',left_inverse) ).
fof(f3,axiom,
! [X0,X1] : product(X0,X1,multiply(X0,X1)),
file('/export/starexec/sandbox2/benchmark/Axioms/GRP005-0.ax',total_function1) ).
fof(f5,axiom,
! [X2,X3,X0,X1,X4,X5] :
( ~ product(X0,X1,X2)
| ~ product(X1,X3,X4)
| ~ product(X2,X3,X5)
| product(X0,X4,X5) ),
file('/export/starexec/sandbox2/benchmark/Axioms/GRP005-0.ax',associativity1) ).
fof(f6,axiom,
! [X2,X3,X0,X1,X4,X5] :
( ~ product(X0,X1,X2)
| ~ product(X1,X3,X4)
| ~ product(X0,X4,X5)
| product(X2,X3,X5) ),
file('/export/starexec/sandbox2/benchmark/Axioms/GRP005-0.ax',associativity2) ).
fof(f8,negated_conjecture,
~ product(a,inverse(a),identity),
file('/export/starexec/sandbox2/benchmark/theBenchmark.p',prove_right_inverse) ).
fof(f15,plain,
! [X2,X3,X0,X1] :
( ~ product(X0,X1,X2)
| ~ product(identity,X1,X3)
| product(inverse(X0),X2,X3) ),
inference(resolution,[],[f5,f2]) ).
fof(f18,plain,
! [X2,X3,X0,X1] :
( ~ product(X0,X1,X2)
| ~ product(identity,X2,X3)
| product(X0,X1,X3) ),
inference(resolution,[],[f6,f1]) ).
fof(f19,plain,
! [X2,X3,X0,X1] :
( ~ product(inverse(X0),X2,X3)
| ~ product(X0,X1,X2)
| product(identity,X1,X3) ),
inference(resolution,[],[f6,f2]) ).
fof(f35,plain,
! [X2,X0,X1] :
( ~ product(identity,multiply(X0,X1),X2)
| product(X0,X1,X2) ),
inference(resolution,[],[f18,f3]) ).
fof(f40,plain,
! [X2,X0,X1] :
( ~ product(identity,X0,X1)
| product(inverse(X2),multiply(X2,X0),X1) ),
inference(resolution,[],[f15,f3]) ).
fof(f49,plain,
! [X0,X1] :
( ~ product(X0,X1,X0)
| product(identity,X1,identity) ),
inference(resolution,[],[f19,f2]) ).
fof(f132,plain,
! [X0,X1] : product(inverse(X0),multiply(X0,X1),X1),
inference(resolution,[],[f40,f1]) ).
fof(f277,plain,
! [X0] : product(identity,multiply(X0,inverse(X0)),identity),
inference(resolution,[],[f132,f49]) ).
fof(f511,plain,
! [X0] : product(X0,inverse(X0),identity),
inference(resolution,[],[f277,f35]) ).
fof(f569,plain,
$false,
inference(resolution,[],[f511,f8]) ).
%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.00/0.03 % Problem : GRP004-2 : TPTP v9.3.1. Released v1.0.0.
% 0.00/0.05 % Command : run_vampire /export/starexec/sandbox2/benchmark/theBenchmark.p 300 SAT
% 0.10/0.36 % Computer : n002.cluster.edu
% 0.10/0.36 % Model : x86_64 x86_64
% 0.10/0.36 % CPU : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.10/0.36 % Memory : 8046.5625MB
% 0.10/0.36 % OS : Linux 6.8.0-71-generic
% 0.10/0.36 % CPULimit : 300
% 0.10/0.36 % WCLimit : 300
% 0.10/0.36 % DateTime : Sun Sep 27 09:16:06 UTC 2026
% 0.10/0.37 % CPUTime :
% 0.10/0.37 Running run_vampire /export/starexec/sandbox2/benchmark/theBenchmark.p 300 SAT
% 0.10/0.40 Running first-order model finding
% 0.10/0.40 Running: /export/starexec/sandbox2/solver/bin/vampire-ho --input_syntax tptp --output_axiom_names on --mode casc --intent sat -m 16384 --cores 7 -t 300 /export/starexec/sandbox2/benchmark/theBenchmark.p
% 0.10/0.46 % (3260339)Will run a generic schedule for satisfiability detection.
% 0.10/0.46 % (3260348)ott+31_1_sil=16000:lcm=predicate:bce=on:newcnf=on:random_seed=3249412970:i=116_2999 on theBenchmark for (2999ds/116Mi)
% 0.10/0.46 % (3260345)% WARNING: option uhcvi not known.
% 0.10/0.46 % (3260344)fmb+10_1_sas=cadical:bce=on:rp=on:random_seed=767820535_2999 on theBenchmark for (2999ds/0Mi)
% 0.10/0.46 % (3260346)dis+10_161_sil=256000:plsq=on:plsqr=61199697,1048576:gs=on:alpa=true:sac=on:slsq=on:cn=on:random_seed=1514947265:i=88024:add=on:rawr=on_2999 on theBenchmark for (2999ds/88024Mi)
% 0.10/0.46 % (3260347)dis+10_1_sil=32000:sp=arity:random_seed=3343937234:i=103:fgj=on_2999 on theBenchmark for (2999ds/103Mi)
% 0.10/0.46 % (3260349)ott+1_1_to=lpo:sil=16000:sp=reverse_arity:erd=off:random_seed=2289291487:i=131_2999 on theBenchmark for (2999ds/131Mi)
% 0.10/0.46 % (3260350)ott-3_16_to=lpo:sil=16000:sp=arity:fd=off:rp=on:random_seed=604351973:i=159:bs=unit_only:nicw=on:fsr=off:amm=off_2999 on theBenchmark for (2999ds/159Mi)
% 0.10/0.46 % (3260345)dis+11_61:31_drc=ordering:lsd=5:bsr=unit_only:rp=on:newcnf=on:random_seed=3142735548:i=135531:add=off:rawr=on_2999 on theBenchmark for (2999ds/135531Mi)
% 0.10/0.46 % TRYING [1]
% 0.10/0.46 % TRYING [2]
% 0.10/0.46 % TRYING [3]
% 0.10/0.46 % TRYING [4]
% 0.10/0.46 % TRYING [5]
% 0.10/0.46 % (3260349) found proof, printing to "/export/starexec/sandbox2/tmp/vampire-proof-3260339-3260349"...
% 0.10/0.46 % (3260349)...printing done.
% 0.10/0.46 % (3260350) found proof, printing to "/export/starexec/sandbox2/tmp/vampire-proof-3260339-3260350"...
% 0.10/0.46 % (3260349)Refutation found. Thanks to Tanya!
% 0.10/0.46 % SZS status Unsatisfiable for theBenchmark
% 0.10/0.46 % SZS output start Proof for theBenchmark
% See solution above
% 0.10/0.46 % (3260349)------------------------------
% 0.10/0.46 % (3260349)Version: Vampire 5.0.1 (Release build, commit 5ef7c2677 on 2026-07-16 16:54:09 +0200)
% 0.10/0.46 % (3260349)Linked with Z3 4.14.0.0 3c47fd96cf5645d0c42b2c819d9e9a84380aa721 z3-4.8.4-9178-g3c47fd96c
% 0.10/0.46 % (3260349)CaDiCaL version: 2.1.3
% 0.10/0.46 % (3260349)Termination reason: Refutation
% 0.10/0.46 % (3260349)Time elapsed: 0.013 s
% 0.10/0.46 % (3260349)Peak memory usage: 11 MB
% 0.10/0.46 % (3260349)Instructions burned: 18 (million)
% 0.10/0.46 % (3260339)Success in time 0.046 s
% 0.10/0.46 % Vampire exiting
%------------------------------------------------------------------------------