TSTP Solution File: PLA005-1 by SPASS---3.9

View Problem - Process Solution

%------------------------------------------------------------------------------
% File     : SPASS---3.9
% Problem  : PLA005-1 : TPTP v8.1.0. Released v1.1.0.
% Transfm  : none
% Format   : tptp
% Command  : run_spass %d %s

% Computer : n019.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  : 600s
% DateTime : Mon Jul 18 17:32:17 EDT 2022

% Result   : Unsatisfiable 0.20s 0.44s
% Output   : Refutation 0.20s
% Verified : 
% SZS Type : Refutation
%            Derivation depth      :   24
%            Number of leaves      :   24
% Syntax   : Number of clauses     :   50 (  17 unt;   0 nHn;  50 RR)
%            Number of literals    :  153 (   0 equ; 127 neg)
%            Maximal clause size   :    7 (   3 avg)
%            Maximal term depth    :    3 (   1 avg)
%            Number of predicates  :    3 (   2 usr;   1 prp; 0-2 aty)
%            Number of functors    :   19 (  19 usr;  12 con; 0-2 aty)
%            Number of variables   :    0 (   0 sgn)

% Comments : 
%------------------------------------------------------------------------------
cnf(1,axiom,
    ~ holds(and__dfg(on(c,a),on(d,b)),u),
    file('PLA005-1.p',unknown),
    [] ).

cnf(2,axiom,
    ( ~ holds(u,v)
    | ~ holds(w,v)
    | holds(and__dfg(w,u),v) ),
    file('PLA005-1.p',unknown),
    [] ).

cnf(3,axiom,
    ( ~ differ(u,table)
    | ~ holds(empty,v)
    | ~ holds(clear(u),v)
    | holds(holding(u),do(pickup(u),v)) ),
    file('PLA005-1.p',unknown),
    [] ).

cnf(4,axiom,
    ( ~ holds(empty,u)
    | ~ holds(clear(v),u)
    | ~ holds(on(v,w),u)
    | holds(clear(w),do(pickup(v),u)) ),
    file('PLA005-1.p',unknown),
    [] ).

cnf(5,axiom,
    ( ~ differ(u,v)
    | ~ holds(on(u,w),x)
    | holds(on(u,w),do(pickup(v),x)) ),
    file('PLA005-1.p',unknown),
    [] ).

cnf(6,axiom,
    ( ~ differ(u,v)
    | ~ holds(clear(u),w)
    | holds(clear(u),do(pickup(v),w)) ),
    file('PLA005-1.p',unknown),
    [] ).

cnf(7,axiom,
    ( ~ holds(clear(u),v)
    | ~ holds(holding(w),v)
    | holds(empty,do(putdown(w,u),v)) ),
    file('PLA005-1.p',unknown),
    [] ).

cnf(8,axiom,
    ( ~ holds(clear(u),v)
    | ~ holds(holding(w),v)
    | holds(on(w,u),do(putdown(w,u),v)) ),
    file('PLA005-1.p',unknown),
    [] ).

cnf(10,axiom,
    ( ~ holds(on(u,v),w)
    | holds(on(u,v),do(putdown(x,y),w)) ),
    file('PLA005-1.p',unknown),
    [] ).

cnf(11,axiom,
    ( ~ differ(u,v)
    | ~ holds(clear(u),w)
    | holds(clear(u),do(putdown(x,v),w)) ),
    file('PLA005-1.p',unknown),
    [] ).

cnf(12,axiom,
    ( ~ differ(u,v)
    | differ(v,u) ),
    file('PLA005-1.p',unknown),
    [] ).

cnf(13,axiom,
    differ(a,b),
    file('PLA005-1.p',unknown),
    [] ).

cnf(14,axiom,
    differ(a,c),
    file('PLA005-1.p',unknown),
    [] ).

cnf(15,axiom,
    differ(a,d),
    file('PLA005-1.p',unknown),
    [] ).

cnf(17,axiom,
    differ(b,c),
    file('PLA005-1.p',unknown),
    [] ).

cnf(18,axiom,
    differ(b,d),
    file('PLA005-1.p',unknown),
    [] ).

cnf(20,axiom,
    differ(c,d),
    file('PLA005-1.p',unknown),
    [] ).

cnf(21,axiom,
    differ(c,table),
    file('PLA005-1.p',unknown),
    [] ).

cnf(22,axiom,
    differ(d,table),
    file('PLA005-1.p',unknown),
    [] ).

cnf(25,axiom,
    holds(on(c,d),s0),
    file('PLA005-1.p',unknown),
    [] ).

cnf(27,axiom,
    holds(clear(a),s0),
    file('PLA005-1.p',unknown),
    [] ).

cnf(28,axiom,
    holds(clear(b),s0),
    file('PLA005-1.p',unknown),
    [] ).

cnf(29,axiom,
    holds(clear(c),s0),
    file('PLA005-1.p',unknown),
    [] ).

cnf(30,axiom,
    holds(empty,s0),
    file('PLA005-1.p',unknown),
    [] ).

cnf(32,plain,
    ( ~ holds(on(d,b),u)
    | ~ holds(on(c,a),u) ),
    inference(res,[status(thm),theory(equality)],[2,1]),
    [iquote('0:Res:2.2,1.0')] ).

cnf(39,plain,
    differ(d,a),
    inference(res,[status(thm),theory(equality)],[15,12]),
    [iquote('0:Res:15.0,12.0')] ).

cnf(42,plain,
    differ(b,a),
    inference(res,[status(thm),theory(equality)],[13,12]),
    [iquote('0:Res:13.0,12.0')] ).

cnf(54,plain,
    ( ~ holds(on(c,a),u)
    | ~ holds(on(d,b),do(putdown(v,w),u)) ),
    inference(res,[status(thm),theory(equality)],[10,32]),
    [iquote('0:Res:10.1,32.1')] ).

cnf(59,plain,
    ( ~ holds(clear(b),u)
    | ~ holds(holding(d),u)
    | ~ holds(on(c,a),u) ),
    inference(res,[status(thm),theory(equality)],[8,54]),
    [iquote('0:Res:8.2,54.1')] ).

cnf(61,plain,
    ( ~ differ(c,u)
    | ~ holds(on(c,a),v)
    | ~ holds(clear(b),do(pickup(u),v))
    | ~ holds(holding(d),do(pickup(u),v)) ),
    inference(res,[status(thm),theory(equality)],[5,59]),
    [iquote('0:Res:5.2,59.2')] ).

cnf(67,plain,
    ( ~ differ(d,table)
    | ~ holds(empty,u)
    | ~ holds(clear(d),u)
    | ~ differ(c,d)
    | ~ holds(on(c,a),u)
    | ~ holds(clear(b),do(pickup(d),u)) ),
    inference(res,[status(thm),theory(equality)],[3,61]),
    [iquote('0:Res:3.3,61.3')] ).

cnf(68,plain,
    ( ~ holds(empty,u)
    | ~ holds(clear(d),u)
    | ~ holds(on(c,a),u)
    | ~ holds(clear(b),do(pickup(d),u)) ),
    inference(mrr,[status(thm)],[67,22,20]),
    [iquote('0:MRR:67.0,67.3,22.0,20.0')] ).

cnf(69,plain,
    ( ~ differ(b,d)
    | ~ holds(clear(b),u)
    | ~ holds(empty,u)
    | ~ holds(clear(d),u)
    | ~ holds(on(c,a),u) ),
    inference(res,[status(thm),theory(equality)],[6,68]),
    [iquote('0:Res:6.2,68.3')] ).

cnf(71,plain,
    ( ~ holds(clear(b),u)
    | ~ holds(empty,u)
    | ~ holds(clear(d),u)
    | ~ holds(on(c,a),u) ),
    inference(mrr,[status(thm)],[69,18]),
    [iquote('0:MRR:69.0,18.0')] ).

cnf(75,plain,
    ( ~ holds(clear(a),u)
    | ~ holds(holding(c),u)
    | ~ holds(clear(b),do(putdown(c,a),u))
    | ~ holds(empty,do(putdown(c,a),u))
    | ~ holds(clear(d),do(putdown(c,a),u)) ),
    inference(res,[status(thm),theory(equality)],[8,71]),
    [iquote('0:Res:8.2,71.3')] ).

cnf(76,plain,
    ( ~ holds(clear(a),u)
    | ~ holds(holding(c),u)
    | ~ holds(clear(b),do(putdown(c,a),u))
    | ~ holds(clear(d),do(putdown(c,a),u)) ),
    inference(mrr,[status(thm)],[75,7]),
    [iquote('0:MRR:75.3,7.2')] ).

cnf(87,plain,
    ( ~ differ(d,a)
    | ~ holds(clear(d),u)
    | ~ holds(clear(a),u)
    | ~ holds(holding(c),u)
    | ~ holds(clear(b),do(putdown(c,a),u)) ),
    inference(res,[status(thm),theory(equality)],[11,76]),
    [iquote('0:Res:11.2,76.3')] ).

cnf(88,plain,
    ( ~ holds(clear(d),u)
    | ~ holds(clear(a),u)
    | ~ holds(holding(c),u)
    | ~ holds(clear(b),do(putdown(c,a),u)) ),
    inference(mrr,[status(thm)],[87,39]),
    [iquote('0:MRR:87.0,39.0')] ).

cnf(89,plain,
    ( ~ differ(b,a)
    | ~ holds(clear(b),u)
    | ~ holds(clear(d),u)
    | ~ holds(clear(a),u)
    | ~ holds(holding(c),u) ),
    inference(res,[status(thm),theory(equality)],[11,88]),
    [iquote('0:Res:11.2,88.3')] ).

cnf(90,plain,
    ( ~ holds(clear(b),u)
    | ~ holds(clear(d),u)
    | ~ holds(clear(a),u)
    | ~ holds(holding(c),u) ),
    inference(mrr,[status(thm)],[89,42]),
    [iquote('0:MRR:89.0,42.0')] ).

cnf(93,plain,
    ( ~ differ(c,table)
    | ~ holds(empty,u)
    | ~ holds(clear(c),u)
    | ~ holds(clear(b),do(pickup(c),u))
    | ~ holds(clear(d),do(pickup(c),u))
    | ~ holds(clear(a),do(pickup(c),u)) ),
    inference(res,[status(thm),theory(equality)],[3,90]),
    [iquote('0:Res:3.3,90.3')] ).

cnf(94,plain,
    ( ~ holds(empty,u)
    | ~ holds(clear(c),u)
    | ~ holds(clear(b),do(pickup(c),u))
    | ~ holds(clear(d),do(pickup(c),u))
    | ~ holds(clear(a),do(pickup(c),u)) ),
    inference(mrr,[status(thm)],[93,21]),
    [iquote('0:MRR:93.0,21.0')] ).

cnf(125,plain,
    ( ~ differ(a,c)
    | ~ holds(clear(a),u)
    | ~ holds(empty,u)
    | ~ holds(clear(c),u)
    | ~ holds(clear(b),do(pickup(c),u))
    | ~ holds(clear(d),do(pickup(c),u)) ),
    inference(res,[status(thm),theory(equality)],[6,94]),
    [iquote('0:Res:6.2,94.4')] ).

cnf(127,plain,
    ( ~ holds(clear(a),u)
    | ~ holds(empty,u)
    | ~ holds(clear(c),u)
    | ~ holds(clear(b),do(pickup(c),u))
    | ~ holds(clear(d),do(pickup(c),u)) ),
    inference(mrr,[status(thm)],[125,14]),
    [iquote('0:MRR:125.0,14.0')] ).

cnf(130,plain,
    ( ~ holds(empty,u)
    | ~ holds(clear(c),u)
    | ~ holds(on(c,d),u)
    | ~ holds(clear(a),u)
    | ~ holds(empty,u)
    | ~ holds(clear(c),u)
    | ~ holds(clear(b),do(pickup(c),u)) ),
    inference(res,[status(thm),theory(equality)],[4,127]),
    [iquote('0:Res:4.3,127.4')] ).

cnf(132,plain,
    ( ~ holds(on(c,d),u)
    | ~ holds(clear(a),u)
    | ~ holds(empty,u)
    | ~ holds(clear(c),u)
    | ~ holds(clear(b),do(pickup(c),u)) ),
    inference(obv,[status(thm),theory(equality)],[130]),
    [iquote('0:Obv:130.1')] ).

cnf(155,plain,
    ( ~ differ(b,c)
    | ~ holds(clear(b),u)
    | ~ holds(on(c,d),u)
    | ~ holds(clear(a),u)
    | ~ holds(empty,u)
    | ~ holds(clear(c),u) ),
    inference(res,[status(thm),theory(equality)],[6,132]),
    [iquote('0:Res:6.2,132.4')] ).

cnf(157,plain,
    ( ~ holds(clear(b),u)
    | ~ holds(on(c,d),u)
    | ~ holds(clear(a),u)
    | ~ holds(empty,u)
    | ~ holds(clear(c),u) ),
    inference(mrr,[status(thm)],[155,17]),
    [iquote('0:MRR:155.0,17.0')] ).

cnf(159,plain,
    ( ~ holds(clear(b),s0)
    | ~ holds(clear(a),s0)
    | ~ holds(empty,s0)
    | ~ holds(clear(c),s0) ),
    inference(res,[status(thm),theory(equality)],[25,157]),
    [iquote('0:Res:25.0,157.1')] ).

cnf(163,plain,
    $false,
    inference(mrr,[status(thm)],[159,28,27,30,29]),
    [iquote('0:MRR:159.0,159.1,159.2,159.3,28.0,27.0,30.0,29.0')] ).

%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.06/0.12  % Problem  : PLA005-1 : TPTP v8.1.0. Released v1.1.0.
% 0.06/0.13  % Command  : run_spass %d %s
% 0.12/0.34  % Computer : n019.cluster.edu
% 0.12/0.34  % Model    : x86_64 x86_64
% 0.12/0.34  % CPU      : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.12/0.34  % Memory   : 8042.1875MB
% 0.12/0.34  % OS       : Linux 3.10.0-693.el7.x86_64
% 0.12/0.34  % CPULimit : 300
% 0.12/0.34  % WCLimit  : 600
% 0.12/0.34  % DateTime : Tue May 31 23:53:25 EDT 2022
% 0.12/0.34  % CPUTime  : 
% 0.20/0.44  
% 0.20/0.44  SPASS V 3.9 
% 0.20/0.44  SPASS beiseite: Proof found.
% 0.20/0.44  % SZS status Theorem
% 0.20/0.44  Problem: /export/starexec/sandbox2/benchmark/theBenchmark.p 
% 0.20/0.44  SPASS derived 101 clauses, backtracked 0 clauses, performed 0 splits and kept 114 clauses.
% 0.20/0.44  SPASS allocated 63307 KBytes.
% 0.20/0.44  SPASS spent	0:00:00.08 on the problem.
% 0.20/0.44  		0:00:00.04 for the input.
% 0.20/0.44  		0:00:00.00 for the FLOTTER CNF translation.
% 0.20/0.44  		0:00:00.00 for inferences.
% 0.20/0.44  		0:00:00.00 for the backtracking.
% 0.20/0.44  		0:00:00.02 for the reduction.
% 0.20/0.44  
% 0.20/0.44  
% 0.20/0.44  Here is a proof with depth 14, length 50 :
% 0.20/0.44  % SZS output start Refutation
% See solution above
% 0.20/0.44  Formulae used in the proof : prove_CA_DB and_definition pickup_1 pickup_2 pickup_3 pickup_4 putdown_1 putdown_2 putdown_4 putdown_5 symmetry_of_differ differ_a_b differ_a_c differ_a_d differ_b_c differ_b_d differ_c_d differ_c_table differ_d_table initial_state3 initial_state5 initial_state6 initial_state7 initial_state8
% 0.20/0.44  
%------------------------------------------------------------------------------