TSTP Solution File: COM002-1 by CSE---1.6

View Problem - Process Solution

%------------------------------------------------------------------------------
% File     : CSE---1.6
% Problem  : COM002-1 : TPTP v8.1.2. Released v1.0.0.
% Transfm  : none
% Format   : tptp:raw
% Command  : java -jar /export/starexec/sandbox/solver/bin/mcs_scs.jar %s %d

% Computer : n026.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 Aug 30 18:35:06 EDT 2023

% Result   : Unsatisfiable 0.20s 0.69s
% Output   : CNFRefutation 0.20s
% Verified : 
% SZS Type : -

% Comments : 
%------------------------------------------------------------------------------
%----WARNING: Could not form TPTP format derivation
%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.00/0.12  % Problem    : COM002-1 : TPTP v8.1.2. Released v1.0.0.
% 0.00/0.13  % Command    : java -jar /export/starexec/sandbox/solver/bin/mcs_scs.jar %s %d
% 0.12/0.35  % Computer : n026.cluster.edu
% 0.12/0.35  % Model    : x86_64 x86_64
% 0.12/0.35  % CPU      : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.12/0.35  % Memory   : 8042.1875MB
% 0.12/0.35  % OS       : Linux 3.10.0-693.el7.x86_64
% 0.12/0.35  % CPULimit   : 300
% 0.12/0.35  % WCLimit    : 300
% 0.12/0.35  % DateTime   : Tue Aug 29 13:20:05 EDT 2023
% 0.12/0.35  % CPUTime    : 
% 0.20/0.58  start to proof:theBenchmark
% 0.20/0.68  %-------------------------------------------
% 0.20/0.68  % File        :CSE---1.6
% 0.20/0.68  % Problem     :theBenchmark
% 0.20/0.68  % Transform   :cnf
% 0.20/0.68  % Format      :tptp:raw
% 0.20/0.68  % Command     :java -jar mcs_scs.jar %d %s
% 0.20/0.68  
% 0.20/0.68  % Result      :Theorem 0.050000s
% 0.20/0.68  % Output      :CNFRefutation 0.050000s
% 0.20/0.68  %-------------------------------------------
% 0.20/0.68  %--------------------------------------------------------------------------
% 0.20/0.68  % File     : COM002-1 : TPTP v8.1.2. Released v1.0.0.
% 0.20/0.68  % Domain   : Computing Theory
% 0.20/0.68  % Problem  : A program correctness theorem
% 0.20/0.69  % Version  : Especial.
% 0.20/0.69  % English  : A computing state space, with eight states - P1 to P8.
% 0.20/0.69  %            P1 leads to P3 via P2. There is a branch at P3 such that the
% 0.20/0.69  %            following state is either P4 or P6. P6 leads to P8, which has
% 0.20/0.69  %            a loop back to P3, while P4 leads to termination. The problem
% 0.20/0.69  %            is to show that there is a loop in the computation, passing
% 0.20/0.69  %            through P3.
% 0.20/0.69  
% 0.20/0.69  % Refs     : [RR+72] Reboh et al. (1972), Study of automatic theorem provin
% 0.20/0.69  %          : [WM76]  Wilson & Minker (1976), Resolution, Refinements, and S
% 0.20/0.69  % Source   : [SPRFN]
% 0.20/0.69  % Names    : BURSTALL [RR+72]
% 0.20/0.69  %          : BURSTALL [WM76]
% 0.20/0.69  
% 0.20/0.69  % Status   : Unsatisfiable
% 0.20/0.69  % Rating   : 0.00 v5.4.0, 0.06 v5.3.0, 0.10 v5.2.0, 0.00 v2.2.1, 0.11 v2.1.0, 0.00 v2.0.0
% 0.20/0.69  % Syntax   : Number of clauses     :   19 (  15 unt;   0 nHn;  19 RR)
% 0.20/0.69  %            Number of literals    :   25 (   0 equ;   7 neg)
% 0.20/0.69  %            Maximal clause size   :    3 (   1 avg)
% 0.20/0.69  %            Maximal term depth    :    3 (   1 avg)
% 0.20/0.69  %            Number of predicates  :    4 (   4 usr;   0 prp; 2-2 aty)
% 0.20/0.69  %            Number of functors    :   22 (  22 usr;  16 con; 0-2 aty)
% 0.20/0.69  %            Number of variables   :   11 (   1 sgn)
% 0.20/0.69  % SPC      : CNF_UNS_RFO_NEQ_HRN
% 0.20/0.69  
% 0.20/0.69  % Comments : I suspect this problem was originally by R.M. Burstall.
% 0.20/0.69  %--------------------------------------------------------------------------
% 0.20/0.69  cnf(direct_success,axiom,
% 0.20/0.69      ( succeeds(Goal_state,Start_state)
% 0.20/0.69      | ~ follows(Goal_state,Start_state) ) ).
% 0.20/0.69  
% 0.20/0.69  cnf(transitivity_of_success,axiom,
% 0.20/0.69      ( succeeds(Goal_state,Start_state)
% 0.20/0.69      | ~ succeeds(Goal_state,Intermediate_state)
% 0.20/0.69      | ~ succeeds(Intermediate_state,Start_state) ) ).
% 0.20/0.69  
% 0.20/0.69  cnf(goto_success,axiom,
% 0.20/0.69      ( succeeds(Goal_state,Start_state)
% 0.20/0.69      | ~ has(Start_state,goto(Label))
% 0.20/0.69      | ~ labels(Label,Goal_state) ) ).
% 0.20/0.69  
% 0.20/0.69  cnf(conditional_success,axiom,
% 0.20/0.69      ( succeeds(Goal_state,Start_state)
% 0.20/0.69      | ~ has(Start_state,ifthen(Condition,Goal_state)) ) ).
% 0.20/0.69  
% 0.20/0.69  cnf(state_1,hypothesis,
% 0.20/0.69      has(p1,assign(register_j,n0)) ).
% 0.20/0.69  
% 0.20/0.69  cnf(transition_1_to_2,hypothesis,
% 0.20/0.69      follows(p2,p1) ).
% 0.20/0.69  
% 0.20/0.69  cnf(state_2,hypothesis,
% 0.20/0.69      has(p2,assign(register_k,n1)) ).
% 0.20/0.69  
% 0.20/0.69  cnf(label_state_3,hypothesis,
% 0.20/0.69      labels(loop,p3) ).
% 0.20/0.69  
% 0.20/0.69  cnf(transition_2_to_3,hypothesis,
% 0.20/0.69      follows(p3,p2) ).
% 0.20/0.69  
% 0.20/0.69  cnf(state_3,hypothesis,
% 0.20/0.69      has(p3,ifthen(equal_function(register_j,n),p4)) ).
% 0.20/0.69  
% 0.20/0.69  cnf(state_4,hypothesis,
% 0.20/0.69      has(p4,goto(out)) ).
% 0.20/0.69  
% 0.20/0.69  cnf(transition_4_to_5,hypothesis,
% 0.20/0.69      follows(p5,p4) ).
% 0.20/0.69  
% 0.20/0.69  cnf(transition_3_to_6,hypothesis,
% 0.20/0.69      follows(p6,p3) ).
% 0.20/0.69  
% 0.20/0.69  cnf(state_6,hypothesis,
% 0.20/0.69      has(p6,assign(register_k,times(n2,register_k))) ).
% 0.20/0.69  
% 0.20/0.69  cnf(transition_6_to_7,hypothesis,
% 0.20/0.69      follows(p7,p6) ).
% 0.20/0.69  
% 0.20/0.69  cnf(state_7,hypothesis,
% 0.20/0.69      has(p7,assign(register_j,plus(register_j,n1))) ).
% 0.20/0.69  
% 0.20/0.69  cnf(transition_7_to_8,hypothesis,
% 0.20/0.69      follows(p8,p7) ).
% 0.20/0.69  
% 0.20/0.69  cnf(state_8,hypothesis,
% 0.20/0.69      has(p8,goto(loop)) ).
% 0.20/0.69  
% 0.20/0.69  cnf(prove_there_is_a_loop_through_p3,negated_conjecture,
% 0.20/0.69      ~ succeeds(p3,p3) ).
% 0.20/0.69  
% 0.20/0.69  %--------------------------------------------------------------------------
% 0.20/0.69  %-------------------------------------------
% 0.20/0.69  % Proof found
% 0.20/0.69  % SZS status Theorem for theBenchmark
% 0.20/0.69  % SZS output start Proof
% 0.20/0.69  %ClaNum:19(EqnAxiom:0)
% 0.20/0.69  %VarNum:21(SingletonVarNum:11)
% 0.20/0.69  %MaxLitNum:3
% 0.20/0.69  %MaxfuncDepth:2
% 0.20/0.69  %SharedTerms:41
% 0.20/0.69  %goalClause: 15
% 0.20/0.69  %singleGoalClaCount:1
% 0.20/0.69  [1]P1(a1,a2)
% 0.20/0.69  [2]P1(a13,a1)
% 0.20/0.69  [3]P1(a14,a15)
% 0.20/0.69  [4]P1(a16,a13)
% 0.20/0.69  [5]P1(a17,a16)
% 0.20/0.69  [6]P1(a18,a17)
% 0.20/0.69  [7]P2(a3,a13)
% 0.20/0.69  [15]~P4(a13,a13)
% 0.20/0.69  [8]P3(a15,f4(a8))
% 0.20/0.69  [9]P3(a18,f4(a3))
% 0.20/0.69  [10]P3(a2,f5(a19,a9))
% 0.20/0.69  [11]P3(a1,f5(a21,a11))
% 0.20/0.69  [12]P3(a16,f5(a21,f22(a12,a21)))
% 0.20/0.69  [13]P3(a17,f5(a19,f20(a19,a11)))
% 0.20/0.69  [14]P3(a13,f7(f6(a19,a10),a15))
% 0.20/0.69  [16]~P1(x161,x162)+P4(x161,x162)
% 0.20/0.69  [19]P4(x191,x192)+~P3(x192,f7(x193,x191))
% 0.20/0.69  [17]~P4(x171,x173)+P4(x171,x172)+~P4(x173,x172)
% 0.20/0.69  [18]P4(x181,x182)+~P2(x183,x181)+~P3(x182,f4(x183))
% 0.20/0.69  %EqnAxiom
% 0.20/0.69  
% 0.20/0.69  %-------------------------------------------
% 0.20/0.69  cnf(22,plain,
% 0.20/0.69     (~P4(a13,a15)),
% 0.20/0.69     inference(scs_inference,[],[15,14,16,19,17])).
% 0.20/0.69  cnf(34,plain,
% 0.20/0.69     (P4(a13,a18)),
% 0.20/0.69     inference(scs_inference,[],[9,7,18])).
% 0.20/0.69  cnf(72,plain,
% 0.20/0.69     (P4(a16,a13)),
% 0.20/0.69     inference(scs_inference,[],[4,16])).
% 0.20/0.69  cnf(84,plain,
% 0.20/0.69     (P4(a17,a16)),
% 0.20/0.69     inference(scs_inference,[],[5,7,22,18,16])).
% 0.20/0.69  cnf(90,plain,
% 0.20/0.69     (P4(a17,a13)),
% 0.20/0.69     inference(scs_inference,[],[22,72,84,16,17])).
% 0.20/0.69  cnf(96,plain,
% 0.20/0.69     (P4(a18,a17)),
% 0.20/0.69     inference(scs_inference,[],[6,34,90,17,16])).
% 0.20/0.69  cnf(146,plain,
% 0.20/0.69     (~P4(a13,a17)),
% 0.20/0.69     inference(scs_inference,[],[22,90,15,7,18,17])).
% 0.20/0.69  cnf(156,plain,
% 0.20/0.69     ($false),
% 0.20/0.69     inference(scs_inference,[],[34,146,96,17]),
% 0.20/0.69     ['proof']).
% 0.20/0.69  % SZS output end Proof
% 0.20/0.69  % Total time :0.050000s
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