%------------------------------------------------------------------------------
% File : Vampire---5.0.1
% Problem : MSC002-2 : 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 : 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 12:04:45 PM UTC 2026
% Result : Unsatisfiable 3.37s 1.35s
% Output : Refutation 3.37s
% Verified :
% SZS Type : Refutation
% Derivation depth : 7
% Number of leaves : 10
% Syntax : Number of formulae : 21 ( 7 unt; 0 def)
% Number of atoms : 39 ( 0 equ)
% Maximal formula atoms : 3 ( 1 avg)
% Number of connectives : 43 ( 25 ~; 18 |; 0 &)
% ( 0 <=>; 0 =>; 0 <=; 0 <~>)
% Maximal formula depth : 9 ( 5 avg)
% Maximal term depth : 5 ( 1 avg)
% Number of predicates : 7 ( 6 usr; 1 prp; 0-3 aty)
% Number of functors : 7 ( 7 usr; 4 con; 0-2 aty)
% Number of variables : 50 ( 50 !; 0 ?)
% Comments :
%------------------------------------------------------------------------------
fof(f1,axiom,
at(something,here,now),
file('/export/starexec/sandbox2/benchmark/theBenchmark.p',something_is_here_now) ).
fof(f2,axiom,
! [X0,X1] : ~ held(X0,let_go(X1)),
file('/export/starexec/sandbox2/benchmark/theBenchmark.p',cant_hold_and_let_go) ).
fof(f3,axiom,
! [X0,X1] :
( ~ at(X0,here,X1)
| red(X0) ),
file('/export/starexec/sandbox2/benchmark/theBenchmark.p',everything_is_red) ).
fof(f4,axiom,
! [X2,X0,X1] :
( at(X0,X1,let_go(X2))
| ~ at(X0,X1,X2) ),
file('/export/starexec/sandbox2/benchmark/theBenchmark.p',situation_let_go) ).
fof(f5,axiom,
! [X2,X0,X1] :
( at(X0,X1,pick_up(X2))
| ~ at(X0,X1,X2) ),
file('/export/starexec/sandbox2/benchmark/theBenchmark.p',situation_pick_up) ).
fof(f6,axiom,
! [X2,X0,X1] :
( grabbed(X0,pick_up(go(X1,let_go(X2))))
| ~ at(X0,X1,X2) ),
file('/export/starexec/sandbox2/benchmark/theBenchmark.p',can_grab_if_previously_let_go) ).
fof(f7,axiom,
! [X0,X1] :
( ~ red(X0)
| ~ put(X0,there,X1)
| answer(X1) ),
file('/export/starexec/sandbox2/benchmark/theBenchmark.p',answer_if_red_and_put_there) ).
fof(f8,axiom,
! [X2,X3,X0,X1] :
( ~ grabbed(X0,X2)
| ~ at(X0,X1,X2)
| put(X0,X3,go(X3,X2)) ),
file('/export/starexec/sandbox2/benchmark/theBenchmark.p',can_put_somewhere_if_grab_and_go_there) ).
fof(f9,axiom,
! [X2,X3,X0,X1] :
( held(X0,X1)
| ~ at(X0,X2,X1)
| at(X0,X2,go(X3,X1)) ),
file('/export/starexec/sandbox2/benchmark/theBenchmark.p',thing_either_held_or_went_there) ).
fof(f10,negated_conjecture,
! [X0] : ~ answer(X0),
file('/export/starexec/sandbox2/benchmark/theBenchmark.p',prove_there_is_an_answer_situation) ).
fof(f11,plain,
! [X0,X1] :
( ~ red(X0)
| ~ put(X0,there,X1) ),
inference(forward_subsumption_resolution,[],[f7,f10]) ).
fof(f12,plain,
red(something),
inference(resolution,[],[f1,f3]) ).
fof(f13,plain,
! [X0] : ~ put(something,there,X0),
inference(resolution,[],[f12,f11]) ).
fof(f16,plain,
! [X2,X3,X0,X1,X4] :
( put(X0,X4,go(X4,pick_up(go(X1,let_go(X2)))))
| ~ at(X0,X3,pick_up(go(X1,let_go(X2))))
| ~ at(X0,X1,X2) ),
inference(resolution,[],[f6,f8]) ).
fof(f17,plain,
! [X2,X3,X0,X1] :
( ~ at(X0,X1,let_go(X2))
| at(X0,X1,go(X3,let_go(X2))) ),
inference(resolution,[],[f9,f2]) ).
fof(f18,plain,
! [X2,X0,X1] :
( ~ at(something,X0,pick_up(go(X1,let_go(X2))))
| ~ at(something,X1,X2) ),
inference(resolution,[],[f16,f13]) ).
fof(f19,plain,
! [X2,X0,X1] :
( ~ at(something,X2,go(X0,let_go(X1)))
| ~ at(something,X0,X1) ),
inference(resolution,[],[f18,f5]) ).
fof(f20,plain,
! [X2,X3,X0,X1] :
( at(X0,X1,go(X2,let_go(X3)))
| ~ at(X0,X1,X3) ),
inference(resolution,[],[f17,f4]) ).
fof(f22,plain,
! [X2,X0,X1] :
( ~ at(something,X0,X1)
| ~ at(something,X2,X1) ),
inference(resolution,[],[f20,f19]) ).
fof(f23,plain,
! [X0] : ~ at(something,X0,now),
inference(resolution,[],[f22,f1]) ).
fof(f28,plain,
$false,
inference(resolution,[],[f23,f1]) ).
%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.00/0.03 % Problem : MSC002-2 : TPTP v9.3.1. Released v1.0.0.
% 0.00/0.06 % Command : run_vampire /export/starexec/sandbox2/benchmark/theBenchmark.p 300 THM
% 0.11/0.38 % Computer : n026.cluster.edu
% 0.11/0.38 % Model : x86_64 x86_64
% 0.11/0.38 % CPU : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.11/0.38 % Memory : 8046.5625MB
% 0.11/0.38 % OS : Linux 6.8.0-71-generic
% 0.11/0.38 % CPULimit : 300
% 0.11/0.38 % WCLimit : 300
% 0.11/0.38 % DateTime : Sun Sep 27 17:42:57 UTC 2026
% 0.11/0.38 % CPUTime :
% 0.11/0.38 Running run_vampire /export/starexec/sandbox2/benchmark/theBenchmark.p 300 THM
% 0.11/0.41 Running first-order theorem proving
% 0.11/0.41 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
% 3.37/1.35 % (3091832)Input is clausal, will run a generic CNF schedule.
% 3.37/1.35 % (3091884)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=909244846:i=140167_2999 on theBenchmark for (2999ds/140167Mi)
% 3.37/1.35 % (3091887)lrs+10_1_sil=8000:sp=occurrence:random_seed=2114146748:i=107:sd=3:ss=axioms:sgt=8_2999 on theBenchmark for (2999ds/107Mi)
% 3.37/1.35 % (3091885)lrs+10_1_ncem=casc2026/models/loop8.pt:sil=128000:npcc=on:urr=on:br=off:random_seed=1511466009:i=132376:av=off_2999 on theBenchmark for (2999ds/132376Mi)
% 3.37/1.35 % (3091886)lrs+1002_1_ncem=casc2026/models/loop8.pt:sil=128000:tgt=ground:npcc=on:sp=reverse_frequency:spb=intro:random_seed=2482410092:i=137899:s2at=10:gtgl=3:kws=precedence:add=on:bd=preordered:gtg=position_2999 on theBenchmark for (2999ds/137899Mi)
% 3.37/1.35 % (3091888)dis-1002_1_to=lpo:sil=16000:fd=off:random_seed=1963767916:st=1.5:i=114:aac=none:ins=7:ss=axioms:fsd=on_2999 on theBenchmark for (2999ds/114Mi)
% 3.37/1.35 % (3091889)dis-1011_1_sil=16000:fde=unused:s2agt=70:random_seed=2099691493:s2a=on:i=180:gtg=position_2999 on theBenchmark for (2999ds/180Mi)
% 3.37/1.35 % (3091888)Refutation not found, incomplete strategy
% 3.37/1.35 % (3091888)------------------------------
% 3.37/1.35 % (3091888)Version: Vampire 5.0.1 (Release build, commit ea8961452 on 2026-07-16 15:14:34 +0200)
% 3.37/1.35 % (3091888)Linked with Z3 4.14.0.0 3c47fd96cf5645d0c42b2c819d9e9a84380aa721 z3-4.8.4-9178-g3c47fd96c
% 3.37/1.35 % (3091888)CaDiCaL version: 2.1.3
% 3.37/1.35 % (3091888)Termination reason: Refutation not found, incomplete strategy
% 3.37/1.35 % (3091888)Time elapsed: 0.001 s
% 3.37/1.35 % (3091888)Peak memory usage: 86 MB
% 3.37/1.35 % (3091887)Refutation not found, incomplete strategy
% 3.37/1.35 % (3091887)------------------------------
% 3.37/1.35 % (3091887)Version: Vampire 5.0.1 (Release build, commit ea8961452 on 2026-07-16 15:14:34 +0200)
% 3.37/1.35 % (3091887)Linked with Z3 4.14.0.0 3c47fd96cf5645d0c42b2c819d9e9a84380aa721 z3-4.8.4-9178-g3c47fd96c
% 3.37/1.35 % (3091887)CaDiCaL version: 2.1.3
% 3.37/1.35 % (3091887)Termination reason: Refutation not found, incomplete strategy
% 3.37/1.35 % (3091887)Time elapsed: 0.001 s
% 3.37/1.35 % (3091887)Peak memory usage: 88 MB
% 3.37/1.35 % (3091889)First to succeed.
% 3.37/1.35 % (3091889)Solution written to "/export/starexec/sandbox2/tmp/vampire-proof-3091832"
% 3.37/1.35 % (3091890)dis-21_1_sil=8000:lcm=predicate:random_seed=3528344026: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)
% 3.37/1.35 % (3091890)Also succeeded, but the first one will report.
% 3.37/1.35 % (3091887)------------------------------
% 3.37/1.35 % (3091887)------------------------------
% 3.37/1.35 % (3091888)------------------------------
% 3.37/1.35 % (3091888)------------------------------
% 3.37/1.35 % (3091889)Refutation found. Thanks to Tanya!
% 3.37/1.35 % SZS status Unsatisfiable for theBenchmark
% 3.37/1.35 % SZS output start Proof for theBenchmark
% See solution above
% 3.37/1.35 % (3091889)------------------------------
% 3.37/1.35 % (3091889)Version: Vampire 5.0.1 (Release build, commit ea8961452 on 2026-07-16 15:14:34 +0200)
% 3.37/1.35 % (3091889)Linked with Z3 4.14.0.0 3c47fd96cf5645d0c42b2c819d9e9a84380aa721 z3-4.8.4-9178-g3c47fd96c
% 3.37/1.35 % (3091889)CaDiCaL version: 2.1.3
% 3.37/1.35 % (3091889)Termination reason: Refutation
% 3.37/1.35 % (3091889)Time elapsed: 0.002 s
% 3.37/1.35 % (3091889)Peak memory usage: 88 MB
% 3.37/1.35 % (3091889)Instructions burned: 1 (million)
% 3.37/1.35 % (3091889)------------------------------
% 3.37/1.35 % (3091889)------------------------------
% 3.37/1.35 % (3091832)Success in time 0.396 s
% 3.37/1.35 % Vampire exiting
%------------------------------------------------------------------------------