%------------------------------------------------------------------------------
% File : Vampire---5.0.1
% Problem : MSC003-1 : TPTP v9.3.1. Released v1.0.0.
% Transfm : none
% Format : tptp:raw
% Command : run_vampire /export/starexec/sandbox2/benchmark/theBenchmark.p 300 THM
% Computer : n012.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 12:04:45 PM UTC 2026
% Result : Unsatisfiable 1.94s 0.86s
% Output : Refutation 1.94s
% Verified :
% SZS Type : Refutation
% Derivation depth : 7
% Number of leaves : 7
% Syntax : Number of formulae : 14 ( 6 unt; 0 def)
% Number of atoms : 27 ( 0 equ)
% Maximal formula atoms : 4 ( 1 avg)
% Number of connectives : 28 ( 15 ~; 13 |; 0 &)
% ( 0 <=>; 0 =>; 0 <=; 0 <~>)
% Maximal formula depth : 9 ( 4 avg)
% Maximal term depth : 2 ( 1 avg)
% Number of predicates : 3 ( 2 usr; 1 prp; 0-3 aty)
% Number of functors : 9 ( 9 usr; 7 con; 0-5 aty)
% Number of variables : 20 ( 20 !; 0 ?)
% Comments :
%------------------------------------------------------------------------------
fof(f1,axiom,
! [X2,X3,X0,X1,X4] :
( in(object_in(X0,X1,X2,X3,X4),X1)
| has_parts(X0,times(X3,X4),X2)
| ~ has_parts(X0,X3,X1) ),
file('/export/starexec/sandbox2/benchmark/theBenchmark.p',not_part_inheritance) ).
fof(f2,axiom,
! [X2,X3,X0,X1,X4] :
( ~ has_parts(object_in(X0,X4,X3,X1,X2),X2,X3)
| ~ has_parts(X0,X1,X4)
| has_parts(X0,times(X1,X2),X3) ),
file('/export/starexec/sandbox2/benchmark/theBenchmark.p',part_inheritance) ).
fof(f3,axiom,
in(john,boy),
file('/export/starexec/sandbox2/benchmark/theBenchmark.p',john_is_a_boy) ).
fof(f4,axiom,
! [X0] :
( in(X0,human)
| ~ in(X0,boy) ),
file('/export/starexec/sandbox2/benchmark/theBenchmark.p',in_boy_in_human) ).
fof(f6,axiom,
! [X0] :
( has_parts(X0,n2,arm)
| ~ in(X0,human) ),
file('/export/starexec/sandbox2/benchmark/theBenchmark.p',humans_have_two_arms) ).
fof(f7,axiom,
! [X0] :
( has_parts(X0,n1,hand)
| ~ in(X0,arm) ),
file('/export/starexec/sandbox2/benchmark/theBenchmark.p',arms_have_one_hand) ).
fof(f8,negated_conjecture,
~ has_parts(john,times(n2,n1),hand),
file('/export/starexec/sandbox2/benchmark/theBenchmark.p',prove_john_has_2_hands) ).
fof(f11,plain,
! [X2,X0,X1] :
( ~ in(object_in(X0,X2,hand,X1,n1),arm)
| has_parts(X0,times(X1,n1),hand)
| ~ has_parts(X0,X1,X2) ),
inference(resolution,[],[f2,f7]) ).
fof(f18,plain,
! [X0,X1] :
( has_parts(X0,times(X1,n1),hand)
| ~ has_parts(X0,X1,arm)
| has_parts(X0,times(X1,n1),hand)
| ~ has_parts(X0,X1,arm) ),
inference(resolution,[],[f11,f1]) ).
fof(f19,plain,
! [X0,X1] :
( has_parts(X0,times(X1,n1),hand)
| ~ has_parts(X0,X1,arm) ),
inference(duplicate_literal_removal,[],[f18]) ).
fof(f21,plain,
~ has_parts(john,n2,arm),
inference(resolution,[],[f19,f8]) ).
fof(f23,plain,
~ in(john,human),
inference(resolution,[],[f21,f6]) ).
fof(f26,plain,
~ in(john,boy),
inference(resolution,[],[f23,f4]) ).
fof(f27,plain,
$false,
inference(forward_subsumption_resolution,[],[f26,f3]) ).
%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.00/0.01 % Problem : MSC003-1 : TPTP v9.3.1. Released v1.0.0.
% 0.00/0.02 % Command : run_vampire /export/starexec/sandbox2/benchmark/theBenchmark.p 300 THM
% 0.04/0.30 % Computer : n012.cluster.edu
% 0.04/0.30 % Model : x86_64 x86_64
% 0.04/0.30 % CPU : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.04/0.30 % Memory : 8046.5625MB
% 0.04/0.30 % OS : Linux 6.8.0-71-generic
% 0.04/0.30 % CPULimit : 300
% 0.04/0.30 % WCLimit : 300
% 0.04/0.30 % DateTime : Sun Sep 27 17:39:34 UTC 2026
% 0.04/0.30 % CPUTime :
% 0.04/0.30 Running run_vampire /export/starexec/sandbox2/benchmark/theBenchmark.p 300 THM
% 0.04/0.32 Running first-order theorem proving
% 0.04/0.32 Running: /export/starexec/sandbox2/solver/bin/vampire --input_syntax tptp --output_axiom_names on --mode casc -m 16384 --cores 7 -t 300 /export/starexec/sandbox2/benchmark/theBenchmark.p
% 1.94/0.86 % (2615223)Input is clausal, will run a generic CNF schedule.
% 1.94/0.86 % (2615228)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=2115919641:i=140167_2999 on theBenchmark for (2999ds/140167Mi)
% 1.94/0.86 % (2615231)lrs+10_1_sil=8000:sp=occurrence:random_seed=3090791400:i=107:sd=3:ss=axioms:sgt=8_2999 on theBenchmark for (2999ds/107Mi)
% 1.94/0.86 % (2615232)dis-1002_1_to=lpo:sil=16000:fd=off:random_seed=4058124848:st=1.5:i=114:aac=none:ins=7:ss=axioms:fsd=on_2999 on theBenchmark for (2999ds/114Mi)
% 1.94/0.86 % (2615231)Also succeeded, but the first one will report.
% 1.94/0.86 % (2615232)First to succeed.
% 1.94/0.86 % (2615232)Solution written to "/export/starexec/sandbox2/tmp/vampire-proof-2615223"
% 1.94/0.86 % (2615230)lrs+1002_1_ncem=casc2026/models/loop8.pt:sil=128000:tgt=ground:npcc=on:sp=reverse_frequency:spb=intro:random_seed=1979486570:i=137899:s2at=10:gtgl=3:kws=precedence:add=on:bd=preordered:gtg=position_2999 on theBenchmark for (2999ds/137899Mi)
% 1.94/0.86 % (2615229)lrs+10_1_ncem=casc2026/models/loop8.pt:sil=128000:npcc=on:urr=on:br=off:random_seed=3821444583:i=132376:av=off_2999 on theBenchmark for (2999ds/132376Mi)
% 1.94/0.86 % (2615234)dis-21_1_sil=8000:lcm=predicate:random_seed=2152509376: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)
% 1.94/0.86 % (2615234)Also succeeded, but the first one will report.
% 1.94/0.86 % (2615233)dis-1011_1_sil=16000:fde=unused:s2agt=70:random_seed=2661980292:s2a=on:i=180:gtg=position_2999 on theBenchmark for (2999ds/180Mi)
% 1.94/0.86 % (2615233)Also succeeded, but the first one will report.
% 1.94/0.86 % (2615232)Refutation found. Thanks to Tanya!
% 1.94/0.86 % SZS status Unsatisfiable for theBenchmark
% 1.94/0.86 % SZS output start Proof for theBenchmark
% See solution above
% 1.94/0.86 % (2615232)------------------------------
% 1.94/0.86 % (2615232)Version: Vampire 5.0.1 (Release build, commit ea8961452 on 2026-07-16 15:14:34 +0200)
% 1.94/0.86 % (2615232)Linked with Z3 4.14.0.0 3c47fd96cf5645d0c42b2c819d9e9a84380aa721 z3-4.8.4-9178-g3c47fd96c
% 1.94/0.86 % (2615232)CaDiCaL version: 2.1.3
% 1.94/0.86 % (2615232)Termination reason: Refutation
% 1.94/0.86 % (2615232)Time elapsed: 0.001 s
% 1.94/0.86 % (2615232)Peak memory usage: 87 MB
% 1.94/0.86 % (2615232)Instructions burned: 1 (million)
% 1.94/0.86 % (2615232)------------------------------
% 1.94/0.86 % (2615232)------------------------------
% 1.94/0.86 % (2615223)Success in time 0.254 s
% 1.94/0.86 % Vampire exiting
%------------------------------------------------------------------------------