TSTP Solution File: PUZ033-1 by Otter---3.3

View Problem - Process Solution

%------------------------------------------------------------------------------
% File     : Otter---3.3
% Problem  : PUZ033-1 : TPTP v8.1.0. Released v1.0.0.
% Transfm  : none
% Format   : tptp:raw
% Command  : otter-tptp-script %s

% Computer : n007.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 : Wed Jul 27 13:11:26 EDT 2022

% Result   : Unsatisfiable 1.71s 1.92s
% Output   : Refutation 1.71s
% Verified : 
% SZS Type : Refutation
%            Derivation depth      :    9
%            Number of leaves      :   12
% Syntax   : Number of clauses     :   26 (  10 unt;   7 nHn;  26 RR)
%            Number of literals    :   55 (   0 equ;  24 neg)
%            Maximal clause size   :    4 (   2 avg)
%            Maximal term depth    :    0 (   0 avg)
%            Number of predicates  :   12 (  11 usr;  12 prp; 0-0 aty)
%            Number of functors    :    0 (   0 usr;   0 con; --- aty)
%            Number of variables   :    0 (   0 sgn)

% Comments : 
%------------------------------------------------------------------------------
cnf(1,axiom,
    ( ~ wind_in_east
    | sunshine ),
    file('PUZ033-1.p',unknown),
    [] ).

cnf(2,axiom,
    ( ~ cold
    | ~ foggy
    | neighbor_practices_flute ),
    file('PUZ033-1.p',unknown),
    [] ).

cnf(3,axiom,
    ( ~ fire_smokes
    | door_is_open ),
    file('PUZ033-1.p',unknown),
    [] ).

cnf(4,axiom,
    ( ~ cold
    | ~ i_feel_rheumatic
    | fire_is_lit ),
    file('PUZ033-1.p',unknown),
    [] ).

cnf(5,axiom,
    ( ~ wind_in_east
    | ~ wind_in_gusts
    | fire_smokes ),
    file('PUZ033-1.p',unknown),
    [] ).

cnf(7,axiom,
    ( ~ sunshine
    | cold
    | ~ foggy
    | window_is_shut ),
    file('PUZ033-1.p',unknown),
    [] ).

cnf(8,plain,
    ( ~ sunshine
    | ~ foggy
    | cold
    | window_is_shut ),
    inference(propositional,[status(thm)],[inference(copy,[status(thm)],[7])]),
    [iquote('copy,7,propositional')] ).

cnf(9,axiom,
    ( wind_in_gusts
    | ~ fire_is_lit
    | door_is_open
    | ~ i_feel_rheumatic ),
    file('PUZ033-1.p',unknown),
    [] ).

cnf(10,plain,
    ( ~ i_feel_rheumatic
    | ~ fire_is_lit
    | door_is_open
    | wind_in_gusts ),
    inference(propositional,[status(thm)],[inference(copy,[status(thm)],[9])]),
    [iquote('copy,9,propositional')] ).

cnf(11,axiom,
    ( ~ sunshine
    | foggy ),
    file('PUZ033-1.p',unknown),
    [] ).

cnf(12,axiom,
    ( ~ neighbor_practices_flute
    | ~ door_is_open ),
    file('PUZ033-1.p',unknown),
    [] ).

cnf(13,axiom,
    ( ~ foggy
    | ~ wind_in_east
    | i_feel_rheumatic ),
    file('PUZ033-1.p',unknown),
    [] ).

cnf(14,plain,
    ( ~ wind_in_east
    | ~ foggy
    | i_feel_rheumatic ),
    inference(propositional,[status(thm)],[inference(copy,[status(thm)],[13])]),
    [iquote('copy,13,propositional')] ).

cnf(15,axiom,
    ~ window_is_shut,
    file('PUZ033-1.p',unknown),
    [] ).

cnf(16,axiom,
    wind_in_east,
    file('PUZ033-1.p',unknown),
    [] ).

cnf(17,plain,
    sunshine,
    inference(hyper,[status(thm)],[16,1]),
    [iquote('hyper,16,1')] ).

cnf(18,plain,
    foggy,
    inference(hyper,[status(thm)],[17,11]),
    [iquote('hyper,17,11')] ).

cnf(19,plain,
    i_feel_rheumatic,
    inference(hyper,[status(thm)],[18,14,16]),
    [iquote('hyper,18,14,16')] ).

cnf(20,plain,
    ( cold
    | window_is_shut ),
    inference(hyper,[status(thm)],[18,8,17]),
    [iquote('hyper,18,8,17')] ).

cnf(21,plain,
    cold,
    inference(hyper,[status(thm)],[20,15]),
    [iquote('hyper,20,15')] ).

cnf(22,plain,
    fire_is_lit,
    inference(hyper,[status(thm)],[21,4,19]),
    [iquote('hyper,21,4,19')] ).

cnf(23,plain,
    neighbor_practices_flute,
    inference(hyper,[status(thm)],[21,2,18]),
    [iquote('hyper,21,2,18')] ).

cnf(24,plain,
    ( door_is_open
    | wind_in_gusts ),
    inference(hyper,[status(thm)],[22,10,19]),
    [iquote('hyper,22,10,19')] ).

cnf(25,plain,
    ( fire_smokes
    | door_is_open ),
    inference(hyper,[status(thm)],[24,5,16]),
    [iquote('hyper,24,5,16')] ).

cnf(26,plain,
    door_is_open,
    inference(hyper,[status(thm)],[25,3]),
    [iquote('hyper,25,3')] ).

cnf(27,plain,
    $false,
    inference(hyper,[status(thm)],[26,12,23]),
    [iquote('hyper,26,12,23')] ).

%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.07/0.12  % Problem  : PUZ033-1 : TPTP v8.1.0. Released v1.0.0.
% 0.07/0.13  % Command  : otter-tptp-script %s
% 0.13/0.34  % Computer : n007.cluster.edu
% 0.13/0.34  % Model    : x86_64 x86_64
% 0.13/0.34  % CPU      : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.13/0.34  % Memory   : 8042.1875MB
% 0.13/0.34  % OS       : Linux 3.10.0-693.el7.x86_64
% 0.13/0.34  % CPULimit : 300
% 0.13/0.34  % WCLimit  : 300
% 0.13/0.34  % DateTime : Wed Jul 27 01:32:31 EDT 2022
% 0.13/0.34  % CPUTime  : 
% 1.71/1.92  ----- Otter 3.3f, August 2004 -----
% 1.71/1.92  The process was started by sandbox on n007.cluster.edu,
% 1.71/1.92  Wed Jul 27 01:32:31 2022
% 1.71/1.92  The command was "./otter".  The process ID is 19408.
% 1.71/1.92  
% 1.71/1.92  set(prolog_style_variables).
% 1.71/1.92  set(auto).
% 1.71/1.92     dependent: set(auto1).
% 1.71/1.92     dependent: set(process_input).
% 1.71/1.92     dependent: clear(print_kept).
% 1.71/1.92     dependent: clear(print_new_demod).
% 1.71/1.92     dependent: clear(print_back_demod).
% 1.71/1.92     dependent: clear(print_back_sub).
% 1.71/1.92     dependent: set(control_memory).
% 1.71/1.92     dependent: assign(max_mem, 12000).
% 1.71/1.92     dependent: assign(pick_given_ratio, 4).
% 1.71/1.92     dependent: assign(stats_level, 1).
% 1.71/1.92     dependent: assign(max_seconds, 10800).
% 1.71/1.92  clear(print_given).
% 1.71/1.92  
% 1.71/1.92  list(usable).
% 1.71/1.92  0 [] -wind_in_east|sunshine.
% 1.71/1.92  0 [] -cold| -foggy|neighbor_practices_flute.
% 1.71/1.92  0 [] -fire_smokes|door_is_open.
% 1.71/1.92  0 [] -cold| -i_feel_rheumatic|fire_is_lit.
% 1.71/1.92  0 [] -wind_in_east| -wind_in_gusts|fire_smokes.
% 1.71/1.92  0 [] -door_is_open| -headache.
% 1.71/1.92  0 [] -sunshine|cold| -foggy|window_is_shut.
% 1.71/1.92  0 [] wind_in_gusts| -fire_is_lit|door_is_open| -i_feel_rheumatic.
% 1.71/1.92  0 [] -sunshine|foggy.
% 1.71/1.92  0 [] -neighbor_practices_flute| -door_is_open.
% 1.71/1.92  0 [] -foggy| -wind_in_east|i_feel_rheumatic.
% 1.71/1.92  0 [] wind_in_east.
% 1.71/1.92  0 [] -window_is_shut.
% 1.71/1.92  end_of_list.
% 1.71/1.92  
% 1.71/1.92  SCAN INPUT: prop=1, horn=0, equality=0, symmetry=0, max_lits=4.
% 1.71/1.92  
% 1.71/1.92  The clause set is propositional; the strategy will be
% 1.71/1.92  ordered hyperresolution with the propositional
% 1.71/1.92  optimizations, with satellites in sos and nuclei in usable.
% 1.71/1.92  
% 1.71/1.92     dependent: set(hyper_res).
% 1.71/1.92     dependent: set(propositional).
% 1.71/1.92     dependent: set(sort_literals).
% 1.71/1.92  
% 1.71/1.92  ------------> process usable:
% 1.71/1.92  ** KEPT (pick-wt=2): 1 [] -wind_in_east|sunshine.
% 1.71/1.92  ** KEPT (pick-wt=3): 2 [] -cold| -foggy|neighbor_practices_flute.
% 1.71/1.92  ** KEPT (pick-wt=2): 3 [] -fire_smokes|door_is_open.
% 1.71/1.92  ** KEPT (pick-wt=3): 4 [] -cold| -i_feel_rheumatic|fire_is_lit.
% 1.71/1.92  ** KEPT (pick-wt=3): 5 [] -wind_in_east| -wind_in_gusts|fire_smokes.
% 1.71/1.92  ** KEPT (pick-wt=2): 6 [] -door_is_open| -headache.
% 1.71/1.92  ** KEPT (pick-wt=4): 8 [copy,7,propositional] -sunshine| -foggy|cold|window_is_shut.
% 1.71/1.92  ** KEPT (pick-wt=4): 10 [copy,9,propositional] -i_feel_rheumatic| -fire_is_lit|door_is_open|wind_in_gusts.
% 1.71/1.92  ** KEPT (pick-wt=2): 11 [] -sunshine|foggy.
% 1.71/1.92  ** KEPT (pick-wt=2): 12 [] -neighbor_practices_flute| -door_is_open.
% 1.71/1.92  ** KEPT (pick-wt=3): 14 [copy,13,propositional] -wind_in_east| -foggy|i_feel_rheumatic.
% 1.71/1.92  ** KEPT (pick-wt=1): 15 [] -window_is_shut.
% 1.71/1.92  
% 1.71/1.92  ------------> process sos:
% 1.71/1.92  ** KEPT (pick-wt=1): 16 [] wind_in_east.
% 1.71/1.92  
% 1.71/1.92  ======= end of input processing =======
% 1.71/1.92  
% 1.71/1.92  =========== start of search ===========
% 1.71/1.92  
% 1.71/1.92  -------- PROOF -------- 
% 1.71/1.92  
% 1.71/1.92  -----> EMPTY CLAUSE at   0.00 sec ----> 27 [hyper,26,12,23] $F.
% 1.71/1.92  
% 1.71/1.92  Length of proof is 13.  Level of proof is 8.
% 1.71/1.92  
% 1.71/1.92  ---------------- PROOF ----------------
% 1.71/1.92  % SZS status Unsatisfiable
% 1.71/1.92  % SZS output start Refutation
% See solution above
% 1.71/1.92  ------------ end of proof -------------
% 1.71/1.92  
% 1.71/1.92  
% 1.71/1.92  Search stopped by max_proofs option.
% 1.71/1.92  
% 1.71/1.92  
% 1.71/1.92  Search stopped by max_proofs option.
% 1.71/1.92  
% 1.71/1.92  ============ end of search ============
% 1.71/1.92  
% 1.71/1.92  -------------- statistics -------------
% 1.71/1.92  clauses given                 11
% 1.71/1.92  clauses generated             11
% 1.71/1.92  clauses kept                  23
% 1.71/1.92  clauses forward subsumed       0
% 1.71/1.92  clauses back subsumed         11
% 1.71/1.92  Kbytes malloced              976
% 1.71/1.92  
% 1.71/1.92  ----------- times (seconds) -----------
% 1.71/1.92  user CPU time          0.00          (0 hr, 0 min, 0 sec)
% 1.71/1.92  system CPU time        0.00          (0 hr, 0 min, 0 sec)
% 1.71/1.92  wall-clock time        1             (0 hr, 0 min, 1 sec)
% 1.71/1.92  
% 1.71/1.92  That finishes the proof of the theorem.
% 1.71/1.92  
% 1.71/1.92  Process 19408 finished Wed Jul 27 01:32:32 2022
% 1.71/1.92  Otter interrupted
% 1.71/1.92  PROOF FOUND
%------------------------------------------------------------------------------