TSTP Solution File: PLA005-2 by Vampire---4.8

View Problem - Process Solution

%------------------------------------------------------------------------------
% File     : Vampire---4.8
% Problem  : PLA005-2 : TPTP v8.1.2. Released v1.1.0.
% Transfm  : none
% Format   : tptp:raw
% Command  : vampire --ignore_missing on --mode portfolio/casc [--schedule casc_hol_2020] -p tptp -om szs -t %d %s

% Computer : n002.cluster.edu
% Model    : x86_64 x86_64
% CPU      : Intel(R) Xeon(R) CPU E5-2620 v4 2.10GHz
% Memory   : 8042.1875MB
% OS       : Linux 3.10.0-693.el7.x86_64
% CPULimit : 300s
% WCLimit  : 300s
% DateTime : Thu Aug 31 13:03:28 EDT 2023

% Result   : Unsatisfiable 0.20s 0.44s
% Output   : Refutation 0.20s
% Verified : 
% SZS Type : Refutation
%            Derivation depth      :   31
%            Number of leaves      :   24
% Syntax   : Number of formulae    :   55 (  16 unt;   0 def)
%            Number of atoms       :  200 (   0 equ)
%            Maximal formula atoms :   10 (   3 avg)
%            Number of connectives :  321 ( 176   ~; 145   |;   0   &)
%                                         (   0 <=>;   0  =>;   0  <=;   0 <~>)
%            Maximal formula depth :   12 (   6 avg)
%            Maximal term depth    :    3 (   1 avg)
%            Number of predicates  :    3 (   2 usr;   1 prp; 0-2 aty)
%            Number of functors    :   14 (  14 usr;   7 con; 0-2 aty)
%            Number of variables   :   64 (;  64   !;   0   ?)

% Comments : 
%------------------------------------------------------------------------------
fof(f507,plain,
    $false,
    inference(resolution,[],[f506,f29]) ).

fof(f29,axiom,
    holds(empty,s0),
    file('/export/starexec/sandbox2/tmp/tmp.MZQB2WAGmF/Vampire---4.8_19569',initial_state8) ).

fof(f506,plain,
    ~ holds(empty,s0),
    inference(resolution,[],[f505,f26]) ).

fof(f26,axiom,
    holds(clear(a),s0),
    file('/export/starexec/sandbox2/tmp/tmp.MZQB2WAGmF/Vampire---4.8_19569',initial_state5) ).

fof(f505,plain,
    ( ~ holds(clear(a),s0)
    | ~ holds(empty,s0) ),
    inference(resolution,[],[f504,f27]) ).

fof(f27,axiom,
    holds(clear(b),s0),
    file('/export/starexec/sandbox2/tmp/tmp.MZQB2WAGmF/Vampire---4.8_19569',initial_state6) ).

fof(f504,plain,
    ( ~ holds(clear(b),s0)
    | ~ holds(clear(a),s0)
    | ~ holds(empty,s0) ),
    inference(resolution,[],[f503,f28]) ).

fof(f28,axiom,
    holds(clear(c),s0),
    file('/export/starexec/sandbox2/tmp/tmp.MZQB2WAGmF/Vampire---4.8_19569',initial_state7) ).

fof(f503,plain,
    ( ~ holds(clear(c),s0)
    | ~ holds(clear(b),s0)
    | ~ holds(clear(a),s0)
    | ~ holds(empty,s0) ),
    inference(resolution,[],[f498,f24]) ).

fof(f24,axiom,
    holds(on(c,d),s0),
    file('/export/starexec/sandbox2/tmp/tmp.MZQB2WAGmF/Vampire---4.8_19569',initial_state3) ).

fof(f498,plain,
    ! [X0] :
      ( ~ holds(on(c,d),X0)
      | ~ holds(clear(b),X0)
      | ~ holds(clear(c),X0)
      | ~ holds(clear(a),X0)
      | ~ holds(empty,X0) ),
    inference(resolution,[],[f496,f13]) ).

fof(f13,axiom,
    differ(a,c),
    file('/export/starexec/sandbox2/tmp/tmp.MZQB2WAGmF/Vampire---4.8_19569',differ_a_c) ).

fof(f496,plain,
    ! [X0] :
      ( ~ differ(a,c)
      | ~ holds(clear(c),X0)
      | ~ holds(clear(b),X0)
      | ~ holds(on(c,d),X0)
      | ~ holds(clear(a),X0)
      | ~ holds(empty,X0) ),
    inference(resolution,[],[f494,f16]) ).

fof(f16,axiom,
    differ(b,c),
    file('/export/starexec/sandbox2/tmp/tmp.MZQB2WAGmF/Vampire---4.8_19569',differ_b_c) ).

fof(f494,plain,
    ! [X0] :
      ( ~ differ(b,c)
      | ~ holds(on(c,d),X0)
      | ~ holds(clear(c),X0)
      | ~ holds(clear(b),X0)
      | ~ differ(a,c)
      | ~ holds(clear(a),X0)
      | ~ holds(empty,X0) ),
    inference(resolution,[],[f493,f20]) ).

fof(f20,axiom,
    differ(c,table),
    file('/export/starexec/sandbox2/tmp/tmp.MZQB2WAGmF/Vampire---4.8_19569',differ_c_table) ).

fof(f493,plain,
    ! [X0] :
      ( ~ differ(c,table)
      | ~ holds(clear(c),X0)
      | ~ holds(on(c,d),X0)
      | ~ differ(b,c)
      | ~ holds(clear(b),X0)
      | ~ differ(a,c)
      | ~ holds(clear(a),X0)
      | ~ holds(empty,X0) ),
    inference(duplicate_literal_removal,[],[f492]) ).

fof(f492,plain,
    ! [X0] :
      ( ~ holds(empty,X0)
      | ~ holds(clear(c),X0)
      | ~ holds(on(c,d),X0)
      | ~ differ(b,c)
      | ~ holds(clear(b),X0)
      | ~ differ(a,c)
      | ~ holds(clear(a),X0)
      | ~ differ(c,table)
      | ~ holds(empty,X0)
      | ~ holds(clear(c),X0) ),
    inference(resolution,[],[f441,f2]) ).

fof(f2,axiom,
    ! [X2,X0] :
      ( ~ differ(X0,table)
      | ~ holds(empty,X2)
      | ~ holds(clear(X0),X2)
      | holds(holding(X0),do(pickup(X0),X2)) ),
    file('/export/starexec/sandbox2/tmp/tmp.MZQB2WAGmF/Vampire---4.8_19569',pickup_1) ).

fof(f441,plain,
    ! [X2,X3] :
      ( ~ holds(holding(c),do(pickup(X2),X3))
      | ~ holds(empty,X3)
      | ~ holds(clear(X2),X3)
      | ~ holds(on(X2,d),X3)
      | ~ differ(b,X2)
      | ~ holds(clear(b),X3)
      | ~ differ(a,X2)
      | ~ holds(clear(a),X3) ),
    inference(resolution,[],[f370,f5]) ).

fof(f5,axiom,
    ! [X2,X3,X0] :
      ( ~ differ(X0,X3)
      | ~ holds(clear(X0),X2)
      | holds(clear(X0),do(pickup(X3),X2)) ),
    file('/export/starexec/sandbox2/tmp/tmp.MZQB2WAGmF/Vampire---4.8_19569',pickup_4) ).

fof(f370,plain,
    ! [X2,X3] :
      ( ~ holds(clear(a),do(pickup(X2),X3))
      | ~ holds(holding(c),do(pickup(X2),X3))
      | ~ holds(empty,X3)
      | ~ holds(clear(X2),X3)
      | ~ holds(on(X2,d),X3)
      | ~ differ(b,X2)
      | ~ holds(clear(b),X3) ),
    inference(resolution,[],[f277,f5]) ).

fof(f277,plain,
    ! [X0,X1] :
      ( ~ holds(clear(b),do(pickup(X0),X1))
      | ~ holds(clear(a),do(pickup(X0),X1))
      | ~ holds(holding(c),do(pickup(X0),X1))
      | ~ holds(empty,X1)
      | ~ holds(clear(X0),X1)
      | ~ holds(on(X0,d),X1) ),
    inference(resolution,[],[f276,f3]) ).

fof(f3,axiom,
    ! [X2,X0,X1] :
      ( ~ holds(empty,X2)
      | ~ holds(clear(X0),X2)
      | ~ holds(on(X0,X1),X2)
      | holds(clear(X1),do(pickup(X0),X2)) ),
    file('/export/starexec/sandbox2/tmp/tmp.MZQB2WAGmF/Vampire---4.8_19569',pickup_2) ).

fof(f276,plain,
    ! [X0] :
      ( ~ holds(clear(d),X0)
      | ~ holds(clear(a),X0)
      | ~ holds(clear(b),X0)
      | ~ holds(holding(c),X0) ),
    inference(duplicate_literal_removal,[],[f275]) ).

fof(f275,plain,
    ! [X0] :
      ( ~ holds(holding(c),X0)
      | ~ holds(clear(a),X0)
      | ~ holds(clear(b),X0)
      | ~ holds(clear(d),X0)
      | ~ holds(holding(c),X0)
      | ~ holds(clear(a),X0) ),
    inference(resolution,[],[f273,f6]) ).

fof(f6,axiom,
    ! [X2,X0,X1] :
      ( ~ holds(holding(X0),X2)
      | ~ holds(clear(X1),X2)
      | holds(empty,do(putdown(X0,X1),X2)) ),
    file('/export/starexec/sandbox2/tmp/tmp.MZQB2WAGmF/Vampire---4.8_19569',putdown_1) ).

fof(f273,plain,
    ! [X0] :
      ( ~ holds(empty,do(putdown(c,a),X0))
      | ~ holds(holding(c),X0)
      | ~ holds(clear(a),X0)
      | ~ holds(clear(b),X0)
      | ~ holds(clear(d),X0) ),
    inference(resolution,[],[f272,f12]) ).

fof(f12,axiom,
    differ(a,b),
    file('/export/starexec/sandbox2/tmp/tmp.MZQB2WAGmF/Vampire---4.8_19569',differ_a_b) ).

fof(f272,plain,
    ! [X0] :
      ( ~ differ(a,b)
      | ~ holds(clear(d),X0)
      | ~ holds(holding(c),X0)
      | ~ holds(clear(a),X0)
      | ~ holds(clear(b),X0)
      | ~ holds(empty,do(putdown(c,a),X0)) ),
    inference(resolution,[],[f271,f11]) ).

fof(f11,axiom,
    ! [X0,X1] :
      ( ~ differ(X1,X0)
      | differ(X0,X1) ),
    file('/export/starexec/sandbox2/tmp/tmp.MZQB2WAGmF/Vampire---4.8_19569',symmetry_of_differ) ).

fof(f271,plain,
    ! [X0] :
      ( ~ differ(b,a)
      | ~ holds(empty,do(putdown(c,a),X0))
      | ~ holds(clear(d),X0)
      | ~ holds(holding(c),X0)
      | ~ holds(clear(a),X0)
      | ~ holds(clear(b),X0) ),
    inference(resolution,[],[f269,f10]) ).

fof(f10,axiom,
    ! [X2,X3,X0,X1] :
      ( ~ differ(X3,X1)
      | ~ holds(clear(X3),X2)
      | holds(clear(X3),do(putdown(X0,X1),X2)) ),
    file('/export/starexec/sandbox2/tmp/tmp.MZQB2WAGmF/Vampire---4.8_19569',putdown_5) ).

fof(f269,plain,
    ! [X0] :
      ( ~ holds(clear(b),do(putdown(c,a),X0))
      | ~ holds(clear(a),X0)
      | ~ holds(empty,do(putdown(c,a),X0))
      | ~ holds(clear(d),X0)
      | ~ holds(holding(c),X0) ),
    inference(resolution,[],[f268,f14]) ).

fof(f14,axiom,
    differ(a,d),
    file('/export/starexec/sandbox2/tmp/tmp.MZQB2WAGmF/Vampire---4.8_19569',differ_a_d) ).

fof(f268,plain,
    ! [X0] :
      ( ~ differ(a,d)
      | ~ holds(holding(c),X0)
      | ~ holds(clear(a),X0)
      | ~ holds(empty,do(putdown(c,a),X0))
      | ~ holds(clear(d),X0)
      | ~ holds(clear(b),do(putdown(c,a),X0)) ),
    inference(resolution,[],[f267,f11]) ).

fof(f267,plain,
    ! [X0] :
      ( ~ differ(d,a)
      | ~ holds(clear(b),do(putdown(c,a),X0))
      | ~ holds(holding(c),X0)
      | ~ holds(clear(a),X0)
      | ~ holds(empty,do(putdown(c,a),X0))
      | ~ holds(clear(d),X0) ),
    inference(resolution,[],[f71,f10]) ).

fof(f71,plain,
    ! [X3] :
      ( ~ holds(clear(d),do(putdown(c,a),X3))
      | ~ holds(empty,do(putdown(c,a),X3))
      | ~ holds(clear(b),do(putdown(c,a),X3))
      | ~ holds(holding(c),X3)
      | ~ holds(clear(a),X3) ),
    inference(resolution,[],[f68,f7]) ).

fof(f7,axiom,
    ! [X2,X0,X1] :
      ( ~ holds(holding(X0),X2)
      | ~ holds(clear(X1),X2)
      | holds(on(X0,X1),do(putdown(X0,X1),X2)) ),
    file('/export/starexec/sandbox2/tmp/tmp.MZQB2WAGmF/Vampire---4.8_19569',putdown_2) ).

fof(f68,plain,
    ! [X0] :
      ( ~ holds(on(c,a),X0)
      | ~ holds(clear(b),X0)
      | ~ holds(empty,X0)
      | ~ holds(clear(d),X0) ),
    inference(resolution,[],[f66,f17]) ).

fof(f17,axiom,
    differ(b,d),
    file('/export/starexec/sandbox2/tmp/tmp.MZQB2WAGmF/Vampire---4.8_19569',differ_b_d) ).

fof(f66,plain,
    ! [X0] :
      ( ~ differ(b,d)
      | ~ holds(clear(b),X0)
      | ~ holds(on(c,a),X0)
      | ~ holds(empty,X0)
      | ~ holds(clear(d),X0) ),
    inference(resolution,[],[f64,f19]) ).

fof(f19,axiom,
    differ(c,d),
    file('/export/starexec/sandbox2/tmp/tmp.MZQB2WAGmF/Vampire---4.8_19569',differ_c_d) ).

fof(f64,plain,
    ! [X0] :
      ( ~ differ(c,d)
      | ~ differ(b,d)
      | ~ holds(clear(b),X0)
      | ~ holds(on(c,a),X0)
      | ~ holds(empty,X0)
      | ~ holds(clear(d),X0) ),
    inference(resolution,[],[f55,f21]) ).

fof(f21,axiom,
    differ(d,table),
    file('/export/starexec/sandbox2/tmp/tmp.MZQB2WAGmF/Vampire---4.8_19569',differ_d_table) ).

fof(f55,plain,
    ! [X0] :
      ( ~ differ(d,table)
      | ~ holds(on(c,a),X0)
      | ~ differ(b,d)
      | ~ holds(clear(b),X0)
      | ~ differ(c,d)
      | ~ holds(empty,X0)
      | ~ holds(clear(d),X0) ),
    inference(resolution,[],[f53,f2]) ).

fof(f53,plain,
    ! [X2,X3] :
      ( ~ holds(holding(d),do(pickup(X2),X3))
      | ~ differ(c,X2)
      | ~ holds(on(c,a),X3)
      | ~ differ(b,X2)
      | ~ holds(clear(b),X3) ),
    inference(resolution,[],[f45,f5]) ).

fof(f45,plain,
    ! [X4,X5] :
      ( ~ holds(clear(b),do(pickup(X4),X5))
      | ~ holds(holding(d),do(pickup(X4),X5))
      | ~ differ(c,X4)
      | ~ holds(on(c,a),X5) ),
    inference(resolution,[],[f42,f4]) ).

fof(f4,axiom,
    ! [X2,X3,X0,X1] :
      ( ~ differ(X0,X3)
      | ~ holds(on(X0,X1),X2)
      | holds(on(X0,X1),do(pickup(X3),X2)) ),
    file('/export/starexec/sandbox2/tmp/tmp.MZQB2WAGmF/Vampire---4.8_19569',pickup_3) ).

fof(f42,plain,
    ! [X0] :
      ( ~ holds(on(c,a),X0)
      | ~ holds(clear(b),X0)
      | ~ holds(holding(d),X0) ),
    inference(resolution,[],[f34,f9]) ).

fof(f9,axiom,
    ! [X2,X3,X0,X1,X4] :
      ( ~ holds(on(X0,X1),X2)
      | holds(on(X0,X1),do(putdown(X3,X4),X2)) ),
    file('/export/starexec/sandbox2/tmp/tmp.MZQB2WAGmF/Vampire---4.8_19569',putdown_4) ).

fof(f34,plain,
    ! [X3] :
      ( ~ holds(on(c,a),do(putdown(d,b),X3))
      | ~ holds(holding(d),X3)
      | ~ holds(clear(b),X3) ),
    inference(resolution,[],[f32,f7]) ).

fof(f32,plain,
    ! [X0] :
      ( ~ holds(on(d,b),X0)
      | ~ holds(on(c,a),X0) ),
    inference(resolution,[],[f31,f1]) ).

fof(f1,axiom,
    ! [X2,X0,X1] :
      ( ~ holds(X1,X2)
      | ~ holds(X0,X2)
      | holds(and(X0,X1),X2) ),
    file('/export/starexec/sandbox2/tmp/tmp.MZQB2WAGmF/Vampire---4.8_19569',and_definition) ).

fof(f31,axiom,
    ! [X2] : ~ holds(and(on(d,b),on(c,a)),X2),
    file('/export/starexec/sandbox2/tmp/tmp.MZQB2WAGmF/Vampire---4.8_19569',prove_DB_AC) ).

%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.03/0.13  % Problem    : PLA005-2 : TPTP v8.1.2. Released v1.1.0.
% 0.03/0.15  % Command    : vampire --ignore_missing on --mode portfolio/casc [--schedule casc_hol_2020] -p tptp -om szs -t %d %s
% 0.14/0.36  % Computer : n002.cluster.edu
% 0.14/0.36  % Model    : x86_64 x86_64
% 0.14/0.36  % CPU      : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.14/0.36  % Memory   : 8042.1875MB
% 0.14/0.36  % OS       : Linux 3.10.0-693.el7.x86_64
% 0.14/0.36  % CPULimit   : 300
% 0.14/0.36  % WCLimit    : 300
% 0.14/0.36  % DateTime   : Sun Aug 27 05:51:18 EDT 2023
% 0.14/0.36  % CPUTime    : 
% 0.14/0.36  This is a CNF_UNS_RFO_NEQ_HRN problem
% 0.14/0.36  Running vampire_casc2023 --mode casc -m 16384 --cores 7 -t 300 /export/starexec/sandbox2/tmp/tmp.MZQB2WAGmF/Vampire---4.8_19569
% 0.14/0.36  % (19685)Running in auto input_syntax mode. Trying TPTP
% 0.20/0.41  % (19688)lrs+11_4:3_aac=none:add=off:amm=off:anc=none:bd=preordered:bs=on:bce=on:flr=on:fsd=off:fsr=off:fde=none:nwc=2.5:sims=off:sp=reverse_arity:tgt=full:stl=188_1106 on Vampire---4 for (1106ds/0Mi)
% 0.20/0.41  % (19686)lrs-1_7_acc=on:amm=off:anc=all:bs=on:bsr=on:cond=fast:flr=on:fsr=off:gsp=on:lcm=reverse:lma=on:msp=off:nm=0:nwc=1.2:sp=frequency:stl=188_1354 on Vampire---4 for (1354ds/0Mi)
% 0.20/0.41  % (19692)dis+3_1024_av=off:fsr=off:gsp=on:lcm=predicate:nm=4:sos=all:sp=weighted_frequency_338 on Vampire---4 for (338ds/0Mi)
% 0.20/0.42  % (19689)dis-1_128_add=large:amm=sco:anc=all_dependent:bs=on:bsr=on:bce=on:cond=fast:fsr=off:gsp=on:gs=on:gsem=off:lcm=predicate:lma=on:nm=32:nwc=4.0:nicw=on:sac=on:sp=weighted_frequency_692 on Vampire---4 for (692ds/0Mi)
% 0.20/0.42  % (19690)ott-1010_5_add=off:amm=off:anc=none:bce=on:cond=fast:flr=on:lma=on:nm=2:nwc=1.1:sp=occurrence:tgt=ground_470 on Vampire---4 for (470ds/0Mi)
% 0.20/0.42  % (19687)dis-1002_1_av=off:bsr=on:cond=on:flr=on:fsr=off:gsp=on:nwc=2.0:sims=off_1218 on Vampire---4 for (1218ds/0Mi)
% 0.20/0.42  % (19691)ott+10_8_br=off:cond=on:fsr=off:gsp=on:nm=16:nwc=3.0:sims=off:sp=reverse_frequency:urr=on_415 on Vampire---4 for (415ds/0Mi)
% 0.20/0.44  % (19692)First to succeed.
% 0.20/0.44  % (19692)Refutation found. Thanks to Tanya!
% 0.20/0.44  % SZS status Unsatisfiable for Vampire---4
% 0.20/0.44  % SZS output start Proof for Vampire---4
% See solution above
% 0.20/0.44  % (19692)------------------------------
% 0.20/0.44  % (19692)Version: Vampire 4.7 (commit 05ef610bd on 2023-06-21 19:03:17 +0100)
% 0.20/0.44  % (19692)Linked with Z3 4.9.1.0 6ed071b44407cf6623b8d3c0dceb2a8fb7040cee z3-4.8.4-6427-g6ed071b44
% 0.20/0.44  % (19692)Termination reason: Refutation
% 0.20/0.44  
% 0.20/0.44  % (19692)Memory used [KB]: 1279
% 0.20/0.44  % (19692)Time elapsed: 0.026 s
% 0.20/0.44  % (19692)------------------------------
% 0.20/0.44  % (19692)------------------------------
% 0.20/0.44  % (19685)Success in time 0.075 s
% 0.20/0.44  % Vampire---4.8 exiting
%------------------------------------------------------------------------------