TSTP Solution File: GRA008+2 by Princess---230619

View Problem - Process Solution

%------------------------------------------------------------------------------
% File     : Princess---230619
% Problem  : GRA008+2 : TPTP v8.1.2. Bugfixed v3.2.0.
% Transfm  : none
% Format   : tptp
% Command  : princess -inputFormat=tptp +threads -portfolio=casc +printProof -timeoutSec=%d %s

% Computer : n028.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 00:04:29 EDT 2023

% Result   : Theorem 29.90s 4.80s
% Output   : Proof 79.65s
% Verified : 
% SZS Type : -

% Comments : 
%------------------------------------------------------------------------------
%----WARNING: Could not form TPTP format derivation
%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.00/0.13  % Problem  : GRA008+2 : TPTP v8.1.2. Bugfixed v3.2.0.
% 0.00/0.14  % Command  : princess -inputFormat=tptp +threads -portfolio=casc +printProof -timeoutSec=%d %s
% 0.19/0.35  % Computer : n028.cluster.edu
% 0.19/0.35  % Model    : x86_64 x86_64
% 0.19/0.35  % CPU      : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.19/0.35  % Memory   : 8042.1875MB
% 0.19/0.35  % OS       : Linux 3.10.0-693.el7.x86_64
% 0.19/0.35  % CPULimit : 300
% 0.19/0.35  % WCLimit  : 300
% 0.19/0.35  % DateTime : Sun Aug 27 03:46:23 EDT 2023
% 0.19/0.35  % CPUTime  : 
% 0.21/0.61  ________       _____
% 0.21/0.61  ___  __ \_________(_)________________________________
% 0.21/0.61  __  /_/ /_  ___/_  /__  __ \  ___/  _ \_  ___/_  ___/
% 0.21/0.61  _  ____/_  /   _  / _  / / / /__ /  __/(__  )_(__  )
% 0.21/0.61  /_/     /_/    /_/  /_/ /_/\___/ \___//____/ /____/
% 0.21/0.61  
% 0.21/0.61  A Theorem Prover for First-Order Logic modulo Linear Integer Arithmetic
% 0.21/0.61  (2023-06-19)
% 0.21/0.61  
% 0.21/0.62  (c) Philipp Rümmer, 2009-2023
% 0.21/0.62  Contributors: Peter Backeman, Peter Baumgartner, Angelo Brillout, Zafer Esen,
% 0.21/0.62                Amanda Stjerna.
% 0.21/0.62  Free software under BSD-3-Clause.
% 0.21/0.62  
% 0.21/0.62  For more information, visit http://www.philipp.ruemmer.org/princess.shtml
% 0.21/0.62  
% 0.21/0.62  Loading /export/starexec/sandbox2/benchmark/theBenchmark.p ...
% 0.21/0.63  Running up to 7 provers in parallel.
% 0.21/0.65  Prover 0: Options:  +triggersInConjecture +genTotalityAxioms +tightFunctionScopes -clausifier=simple -reverseFunctionalityPropagation -boolFunsAsPreds -triggerStrategy=allUni -realRatSaturationRounds=0 -ignoreQuantifiers -constructProofs=never -generateTriggers=all -randomSeed=1042961893
% 0.21/0.65  Prover 2: Options:  +triggersInConjecture +genTotalityAxioms -tightFunctionScopes -clausifier=simple +reverseFunctionalityPropagation +boolFunsAsPreds -triggerStrategy=allMinimalAndEmpty -realRatSaturationRounds=1 -ignoreQuantifiers -constructProofs=never -generateTriggers=all -randomSeed=-1065072994
% 0.21/0.65  Prover 1: Options:  +triggersInConjecture -genTotalityAxioms -tightFunctionScopes -clausifier=none -reverseFunctionalityPropagation -boolFunsAsPreds -triggerStrategy=maximal -realRatSaturationRounds=0 +ignoreQuantifiers -constructProofs=always -generateTriggers=all -randomSeed=-1571432423
% 0.21/0.65  Prover 3: Options:  +triggersInConjecture -genTotalityAxioms -tightFunctionScopes -clausifier=none -reverseFunctionalityPropagation -boolFunsAsPreds -triggerStrategy=maximal -realRatSaturationRounds=1 +ignoreQuantifiers -constructProofs=never -generateTriggers=all -randomSeed=1922548996
% 0.21/0.65  Prover 5: Options:  +triggersInConjecture -genTotalityAxioms +tightFunctionScopes -clausifier=none +reverseFunctionalityPropagation +boolFunsAsPreds -triggerStrategy=allMaximal -realRatSaturationRounds=1 -ignoreQuantifiers -constructProofs=never -generateTriggers=complete -randomSeed=1259561288
% 0.21/0.65  Prover 4: Options:  +triggersInConjecture -genTotalityAxioms -tightFunctionScopes -clausifier=simple -reverseFunctionalityPropagation -boolFunsAsPreds -triggerStrategy=allUni -realRatSaturationRounds=0 +ignoreQuantifiers -constructProofs=always -generateTriggers=all -randomSeed=1868514696
% 0.21/0.65  Prover 6: Options:  -triggersInConjecture -genTotalityAxioms +tightFunctionScopes -clausifier=none +reverseFunctionalityPropagation -boolFunsAsPreds -triggerStrategy=maximalOutermost -realRatSaturationRounds=0 -ignoreQuantifiers -constructProofs=never -generateTriggers=all -randomSeed=-1399714365
% 2.99/1.11  Prover 1: Preprocessing ...
% 2.99/1.11  Prover 4: Preprocessing ...
% 3.36/1.14  Prover 6: Preprocessing ...
% 3.36/1.14  Prover 5: Preprocessing ...
% 3.36/1.14  Prover 2: Preprocessing ...
% 3.36/1.15  Prover 0: Preprocessing ...
% 3.36/1.15  Prover 3: Preprocessing ...
% 7.32/1.77  Prover 1: Constructing countermodel ...
% 7.82/1.80  Prover 6: Proving ...
% 7.82/1.80  Prover 5: Proving ...
% 7.82/1.81  Prover 3: Constructing countermodel ...
% 7.82/1.83  Prover 2: Proving ...
% 8.98/1.99  Prover 0: Proving ...
% 8.98/2.04  Prover 4: Constructing countermodel ...
% 29.90/4.79  Prover 5: proved (4156ms)
% 29.90/4.80  
% 29.90/4.80  % SZS status Theorem for /export/starexec/sandbox2/benchmark/theBenchmark.p
% 29.90/4.80  
% 30.49/4.80  Prover 7: Options:  +triggersInConjecture -genTotalityAxioms +tightFunctionScopes -clausifier=simple +reverseFunctionalityPropagation +boolFunsAsPreds -triggerStrategy=allUni -realRatSaturationRounds=1 +ignoreQuantifiers -constructProofs=always -generateTriggers=all -randomSeed=-236303470
% 30.49/4.81  Prover 3: stopped
% 30.49/4.82  Prover 0: stopped
% 30.49/4.82  Prover 6: stopped
% 30.49/4.86  Prover 2: stopped
% 30.49/4.86  Prover 8: Options:  +triggersInConjecture +genTotalityAxioms -tightFunctionScopes -clausifier=none -reverseFunctionalityPropagation -boolFunsAsPreds -triggerStrategy=maximal -realRatSaturationRounds=0 +ignoreQuantifiers -constructProofs=always -generateTriggers=all -randomSeed=-200781089
% 30.49/4.86  Prover 10: Options:  +triggersInConjecture -genTotalityAxioms +tightFunctionScopes -clausifier=simple -reverseFunctionalityPropagation +boolFunsAsPreds -triggerStrategy=maximal -realRatSaturationRounds=1 +ignoreQuantifiers -constructProofs=always -generateTriggers=all -randomSeed=919308125
% 30.49/4.86  Prover 7: Preprocessing ...
% 30.49/4.86  Prover 8: Preprocessing ...
% 30.49/4.86  Prover 11: Options:  +triggersInConjecture -genTotalityAxioms +tightFunctionScopes -clausifier=simple -reverseFunctionalityPropagation -boolFunsAsPreds -triggerStrategy=allUni -realRatSaturationRounds=1 +ignoreQuantifiers -constructProofs=always -generateTriggers=all -randomSeed=-1509710984
% 30.49/4.87  Prover 13: Options:  +triggersInConjecture -genTotalityAxioms -tightFunctionScopes -clausifier=simple -reverseFunctionalityPropagation +boolFunsAsPreds -triggerStrategy=maximal -realRatSaturationRounds=0 +ignoreQuantifiers -constructProofs=always -generateTriggers=complete -randomSeed=1138197443
% 31.02/4.93  Prover 10: Preprocessing ...
% 31.02/4.96  Prover 11: Preprocessing ...
% 31.02/4.99  Prover 10: Warning: ignoring some quantifiers
% 31.02/4.99  Prover 13: Preprocessing ...
% 31.02/5.01  Prover 10: Constructing countermodel ...
% 31.02/5.04  Prover 8: Warning: ignoring some quantifiers
% 31.02/5.05  Prover 8: Constructing countermodel ...
% 31.02/5.07  Prover 10: gave up
% 31.02/5.08  Prover 16: Options:  +triggersInConjecture -genTotalityAxioms +tightFunctionScopes -clausifier=simple +reverseFunctionalityPropagation +boolFunsAsPreds -triggerStrategy=maximal -realRatSaturationRounds=1 +ignoreQuantifiers -constructProofs=always -generateTriggers=completeFrugal -randomSeed=-2043353683
% 31.02/5.09  Prover 7: Warning: ignoring some quantifiers
% 31.02/5.10  Prover 7: Constructing countermodel ...
% 32.63/5.14  Prover 7: gave up
% 32.63/5.14  Prover 19: Options:  +triggersInConjecture -genTotalityAxioms -tightFunctionScopes -clausifier=none -reverseFunctionalityPropagation -boolFunsAsPreds -triggerStrategy=maximal -realRatSaturationRounds=1 +ignoreQuantifiers -constructProofs=always -generateTriggers=complete -randomSeed=-1780594085
% 32.90/5.15  Prover 13: Warning: ignoring some quantifiers
% 32.90/5.16  Prover 16: Preprocessing ...
% 32.90/5.17  Prover 13: Constructing countermodel ...
% 33.13/5.19  Prover 19: Preprocessing ...
% 33.13/5.20  Prover 11: Constructing countermodel ...
% 33.67/5.25  Prover 16: Warning: ignoring some quantifiers
% 33.67/5.27  Prover 16: Constructing countermodel ...
% 34.23/5.37  Prover 19: Warning: ignoring some quantifiers
% 34.64/5.38  Prover 19: Constructing countermodel ...
% 68.07/10.01  Prover 13: stopped
% 68.07/10.02  Prover 19: stopped
% 78.26/11.24  Prover 16: Found proof (size 137)
% 78.26/11.24  Prover 16: proved (6160ms)
% 78.26/11.25  Prover 8: stopped
% 78.26/11.25  Prover 11: stopped
% 78.26/11.25  Prover 1: stopped
% 78.26/11.25  Prover 4: stopped
% 78.26/11.25  
% 78.26/11.25  % SZS status Theorem for /export/starexec/sandbox2/benchmark/theBenchmark.p
% 78.26/11.25  
% 78.85/11.28  % SZS output start Proof for theBenchmark
% 78.85/11.28  Assumptions after simplification:
% 78.85/11.28  ---------------------------------
% 78.85/11.28  
% 78.85/11.28    (back_edge)
% 78.85/11.31     ~ complete |  ! [v0: $i] :  ! [v1: $i] :  ! [v2: $i] :  ! [v3: $i] :  ! [v4:
% 78.85/11.31      $i] : ( ~ $i(v4) |  ~ $i(v3) |  ~ $i(v2) |  ~ $i(v1) |  ~ $i(v0) |  ~
% 78.85/11.31      shortest_path(v0, v1, v4) |  ~ precedes(v2, v3, v4) |  ? [v5: $i] :  ? [v6:
% 78.85/11.31        $i] :  ? [v7: $i] : (head_of(v7) = v6 & head_of(v3) = v5 & tail_of(v7) =
% 78.85/11.31        v5 & tail_of(v2) = v6 & $i(v7) & $i(v6) & $i(v5) & edge(v7)))
% 78.85/11.31  
% 78.85/11.31    (edge_ends_are_vertices)
% 78.85/11.31     ! [v0: $i] : ( ~ $i(v0) |  ~ edge(v0) |  ? [v1: $i] :  ? [v2: $i] :
% 78.85/11.31      (head_of(v0) = v1 & tail_of(v0) = v2 & $i(v2) & $i(v1) & vertex(v2) &
% 78.85/11.31        vertex(v1)))
% 78.85/11.31  
% 78.85/11.31    (no_loops)
% 78.85/11.31     ! [v0: $i] : ( ~ $i(v0) |  ~ edge(v0) |  ? [v1: $i] :  ? [v2: $i] : ( ~ (v2 =
% 78.85/11.31          v1) & head_of(v0) = v1 & tail_of(v0) = v2 & $i(v2) & $i(v1)))
% 78.85/11.31  
% 78.85/11.31    (on_path_properties)
% 78.85/11.31     ! [v0: $i] :  ! [v1: $i] :  ! [v2: $i] :  ! [v3: $i] : ( ~ $i(v3) |  ~ $i(v2)
% 78.85/11.31      |  ~ $i(v1) |  ~ $i(v0) |  ~ on_path(v3, v2) |  ~ path(v0, v1, v2) |
% 78.85/11.31      edge(v3)) &  ! [v0: $i] :  ! [v1: $i] :  ! [v2: $i] :  ! [v3: $i] : ( ~
% 78.85/11.31      $i(v3) |  ~ $i(v2) |  ~ $i(v1) |  ~ $i(v0) |  ~ on_path(v3, v2) |  ~
% 78.85/11.31      path(v0, v1, v2) |  ? [v4: $i] :  ? [v5: $i] : (head_of(v3) = v4 &
% 78.85/11.31        tail_of(v3) = v5 & $i(v5) & $i(v4) & in_path(v5, v2) & in_path(v4, v2)))
% 78.85/11.31  
% 78.85/11.31    (precedes_properties)
% 78.85/11.32     ! [v0: $i] :  ! [v1: $i] :  ! [v2: $i] :  ! [v3: $i] :  ! [v4: $i] :  ! [v5:
% 78.85/11.32      $i] : ( ~ $i(v5) |  ~ $i(v4) |  ~ $i(v3) |  ~ $i(v2) |  ~ $i(v1) |  ~ $i(v0)
% 78.85/11.32      |  ~ precedes(v3, v2, v0) |  ~ precedes(v1, v2, v0) |  ~ sequential(v1, v3)
% 78.85/11.32      |  ~ sequential(v1, v2) |  ~ path(v4, v5, v0)) &  ! [v0: $i] :  ! [v1: $i] :
% 78.85/11.32     ! [v2: $i] :  ! [v3: $i] :  ! [v4: $i] : ( ~ $i(v4) |  ~ $i(v3) |  ~ $i(v2) |
% 78.85/11.32       ~ $i(v1) |  ~ $i(v0) |  ~ precedes(v1, v2, v0) |  ~ path(v3, v4, v0) |
% 78.85/11.32      sequential(v1, v2) |  ? [v5: $i] : ($i(v5) & precedes(v5, v2, v0) &
% 78.85/11.32        sequential(v1, v5))) &  ! [v0: $i] :  ! [v1: $i] :  ! [v2: $i] :  ! [v3:
% 78.85/11.32      $i] :  ! [v4: $i] : ( ~ $i(v4) |  ~ $i(v3) |  ~ $i(v2) |  ~ $i(v1) |  ~
% 78.85/11.32      $i(v0) |  ~ precedes(v1, v2, v0) |  ~ path(v3, v4, v0) | on_path(v2, v0)) & 
% 78.85/11.32    ! [v0: $i] :  ! [v1: $i] :  ! [v2: $i] :  ! [v3: $i] :  ! [v4: $i] : ( ~
% 78.85/11.32      $i(v4) |  ~ $i(v3) |  ~ $i(v2) |  ~ $i(v1) |  ~ $i(v0) |  ~ precedes(v1, v2,
% 78.85/11.32        v0) |  ~ path(v3, v4, v0) | on_path(v1, v0))
% 78.85/11.32  
% 78.85/11.32    (sequential_defn)
% 78.85/11.33     ! [v0: $i] :  ! [v1: $i] : (v1 = v0 |  ~ $i(v1) |  ~ $i(v0) |  ~ edge(v1) | 
% 78.85/11.33      ~ edge(v0) | sequential(v0, v1) |  ? [v2: $i] :  ? [v3: $i] : ( ~ (v3 = v2)
% 78.85/11.33        & head_of(v0) = v2 & tail_of(v1) = v3 & $i(v3) & $i(v2))) &  ! [v0: $i] : 
% 78.85/11.33    ! [v1: $i] : ( ~ $i(v1) |  ~ $i(v0) |  ~ sequential(v0, v1) | edge(v1)) &  !
% 78.85/11.33    [v0: $i] :  ! [v1: $i] : ( ~ $i(v1) |  ~ $i(v0) |  ~ sequential(v0, v1) |
% 78.85/11.33      edge(v0)) &  ! [v0: $i] :  ! [v1: $i] : ( ~ $i(v1) |  ~ $i(v0) |  ~
% 78.85/11.33      sequential(v0, v1) |  ? [v2: $i] : (head_of(v0) = v2 & tail_of(v1) = v2 &
% 78.85/11.33        $i(v2))) &  ! [v0: $i] : ( ~ $i(v0) |  ~ sequential(v0, v0))
% 78.85/11.33  
% 78.85/11.33    (sequential_is_triangle)
% 78.85/11.33     ? [v0: $i] :  ? [v1: $i] :  ? [v2: $i] :  ? [v3: $i] :  ? [v4: $i] : ($i(v4)
% 78.85/11.33      & $i(v3) & $i(v2) & $i(v1) & $i(v0) & shortest_path(v0, v1, v4) &
% 78.85/11.33      precedes(v2, v3, v4) & sequential(v2, v3) & complete &  ! [v5: $i] : ( ~
% 78.85/11.33        $i(v5) |  ~ triangle(v2, v3, v5)))
% 78.85/11.33  
% 78.85/11.33    (shortest_path_defn)
% 78.85/11.34     ! [v0: $i] :  ! [v1: $i] :  ! [v2: $i] : (v1 = v0 |  ~ $i(v2) |  ~ $i(v1) | 
% 78.85/11.34      ~ $i(v0) |  ~ path(v0, v1, v2) | shortest_path(v0, v1, v2) |  ? [v3: $i] : 
% 78.85/11.34      ? [v4: $i] :  ? [v5: $i] : (length_of(v4) = v5 & length_of(v2) = v3 & $i(v5)
% 78.85/11.34        & $i(v4) & $i(v3) & path(v0, v1, v4) &  ~ less_or_equal(v3, v5))) &  !
% 78.85/11.34    [v0: $i] :  ! [v1: $i] :  ! [v2: $i] : ( ~ $i(v2) |  ~ $i(v1) |  ~ $i(v0) |  ~
% 78.85/11.34      shortest_path(v0, v1, v2) | path(v0, v1, v2)) &  ! [v0: $i] :  ! [v1: $i] : 
% 78.85/11.34    ! [v2: $i] : ( ~ $i(v2) |  ~ $i(v1) |  ~ $i(v0) |  ~ shortest_path(v0, v1, v2)
% 78.85/11.34      |  ? [v3: $i] : (length_of(v2) = v3 & $i(v3) &  ! [v4: $i] : ( ~ $i(v4) |  ~
% 78.85/11.34          path(v0, v1, v4) |  ? [v5: $i] : (length_of(v4) = v5 & $i(v5) &
% 78.85/11.34            less_or_equal(v3, v5))))) &  ! [v0: $i] :  ! [v1: $i] : ( ~ $i(v1) | 
% 78.85/11.34      ~ $i(v0) |  ~ shortest_path(v0, v0, v1))
% 78.85/11.34  
% 78.85/11.34    (shortest_path_properties)
% 78.85/11.34     ! [v0: $i] :  ! [v1: $i] :  ! [v2: $i] :  ! [v3: $i] :  ! [v4: $i] : ( ~
% 78.85/11.34      $i(v4) |  ~ $i(v3) |  ~ $i(v2) |  ~ $i(v1) |  ~ $i(v0) |  ~
% 78.85/11.34      shortest_path(v0, v1, v4) |  ~ precedes(v3, v2, v4) |  ~ precedes(v2, v3,
% 78.85/11.34        v4)) &  ! [v0: $i] :  ! [v1: $i] :  ! [v2: $i] :  ! [v3: $i] :  ! [v4: $i]
% 78.85/11.34    : ( ~ $i(v4) |  ~ $i(v3) |  ~ $i(v2) |  ~ $i(v1) |  ~ $i(v0) |  ~
% 78.85/11.34      shortest_path(v0, v1, v4) |  ~ precedes(v2, v3, v4) |  ? [v5: $i] :  ? [v6:
% 78.85/11.34        $i] : (head_of(v3) = v6 & tail_of(v2) = v5 & $i(v6) & $i(v5) &  ? [v7: $i]
% 78.85/11.34        : ( ~ $i(v7) |  ? [v8: $i] :  ? [v9: $i] : (( ~ (v9 = v6) & head_of(v7) =
% 78.85/11.34              v9 & $i(v9)) | ( ~ (v8 = v5) & tail_of(v7) = v8 & $i(v8))))))
% 78.85/11.34  
% 78.85/11.34    (triangle_defn)
% 78.85/11.35     ! [v0: $i] :  ! [v1: $i] :  ! [v2: $i] : ( ~ $i(v2) |  ~ $i(v1) |  ~ $i(v0) |
% 78.85/11.35       ~ triangle(v0, v1, v2) | sequential(v2, v0)) &  ! [v0: $i] :  ! [v1: $i] : 
% 78.85/11.35    ! [v2: $i] : ( ~ $i(v2) |  ~ $i(v1) |  ~ $i(v0) |  ~ triangle(v0, v1, v2) |
% 78.85/11.35      sequential(v1, v2)) &  ! [v0: $i] :  ! [v1: $i] :  ! [v2: $i] : ( ~ $i(v2) |
% 78.85/11.35       ~ $i(v1) |  ~ $i(v0) |  ~ triangle(v0, v1, v2) | sequential(v0, v1)) &  !
% 78.85/11.35    [v0: $i] :  ! [v1: $i] :  ! [v2: $i] : ( ~ $i(v2) |  ~ $i(v1) |  ~ $i(v0) |  ~
% 78.85/11.35      triangle(v0, v1, v2) | edge(v2)) &  ! [v0: $i] :  ! [v1: $i] :  ! [v2: $i] :
% 78.85/11.35    ( ~ $i(v2) |  ~ $i(v1) |  ~ $i(v0) |  ~ triangle(v0, v1, v2) | edge(v1)) &  !
% 78.85/11.35    [v0: $i] :  ! [v1: $i] :  ! [v2: $i] : ( ~ $i(v2) |  ~ $i(v1) |  ~ $i(v0) |  ~
% 78.85/11.35      triangle(v0, v1, v2) | edge(v0)) &  ! [v0: $i] :  ! [v1: $i] :  ! [v2: $i] :
% 78.85/11.35    ( ~ $i(v2) |  ~ $i(v1) |  ~ $i(v0) |  ~ sequential(v2, v0) |  ~ sequential(v1,
% 78.85/11.35        v2) |  ~ sequential(v0, v1) |  ~ edge(v2) |  ~ edge(v1) |  ~ edge(v0) |
% 78.85/11.35      triangle(v0, v1, v2))
% 78.85/11.35  
% 78.85/11.35    (function-axioms)
% 78.85/11.35     ! [v0: $i] :  ! [v1: $i] :  ! [v2: $i] :  ! [v3: $i] : (v1 = v0 |  ~
% 78.85/11.35      (minus(v3, v2) = v1) |  ~ (minus(v3, v2) = v0)) &  ! [v0: $i] :  ! [v1: $i]
% 78.85/11.35    :  ! [v2: $i] :  ! [v3: $i] : (v1 = v0 |  ~ (number_of_in(v3, v2) = v1) |  ~
% 78.85/11.35      (number_of_in(v3, v2) = v0)) &  ! [v0: $i] :  ! [v1: $i] :  ! [v2: $i] :  !
% 78.85/11.35    [v3: $i] : (v1 = v0 |  ~ (path_cons(v3, v2) = v1) |  ~ (path_cons(v3, v2) =
% 78.85/11.35        v0)) &  ! [v0: $i] :  ! [v1: $i] :  ! [v2: $i] : (v1 = v0 |  ~
% 78.85/11.35      (length_of(v2) = v1) |  ~ (length_of(v2) = v0)) &  ! [v0: $i] :  ! [v1: $i]
% 78.85/11.35    :  ! [v2: $i] : (v1 = v0 |  ~ (head_of(v2) = v1) |  ~ (head_of(v2) = v0)) &  !
% 78.85/11.35    [v0: $i] :  ! [v1: $i] :  ! [v2: $i] : (v1 = v0 |  ~ (tail_of(v2) = v1) |  ~
% 78.85/11.35      (tail_of(v2) = v0))
% 78.85/11.35  
% 78.85/11.35  Further assumptions not needed in the proof:
% 78.85/11.35  --------------------------------------------
% 78.85/11.35  complete_properties, graph_has_them_all, in_path_properties, length_defn,
% 78.85/11.35  path_defn, path_length_sequential_pairs, path_properties, precedes_defn,
% 78.85/11.35  sequential_pairs_and_triangles
% 78.85/11.35  
% 78.85/11.35  Those formulas are unsatisfiable:
% 78.85/11.35  ---------------------------------
% 78.85/11.35  
% 78.85/11.35  Begin of proof
% 78.85/11.35  | 
% 78.85/11.35  | ALPHA: (on_path_properties) implies:
% 78.85/11.35  |   (1)   ! [v0: $i] :  ! [v1: $i] :  ! [v2: $i] :  ! [v3: $i] : ( ~ $i(v3) |  ~
% 78.85/11.35  |          $i(v2) |  ~ $i(v1) |  ~ $i(v0) |  ~ on_path(v3, v2) |  ~ path(v0, v1,
% 78.85/11.35  |            v2) |  ? [v4: $i] :  ? [v5: $i] : (head_of(v3) = v4 & tail_of(v3) =
% 78.85/11.35  |            v5 & $i(v5) & $i(v4) & in_path(v5, v2) & in_path(v4, v2)))
% 78.85/11.35  | 
% 78.85/11.35  | ALPHA: (sequential_defn) implies:
% 78.85/11.35  |   (2)   ! [v0: $i] :  ! [v1: $i] : ( ~ $i(v1) |  ~ $i(v0) |  ~ sequential(v0,
% 78.85/11.35  |            v1) |  ? [v2: $i] : (head_of(v0) = v2 & tail_of(v1) = v2 & $i(v2)))
% 78.85/11.36  |   (3)   ! [v0: $i] :  ! [v1: $i] : ( ~ $i(v1) |  ~ $i(v0) |  ~ sequential(v0,
% 78.85/11.36  |            v1) | edge(v0))
% 78.85/11.36  |   (4)   ! [v0: $i] :  ! [v1: $i] : ( ~ $i(v1) |  ~ $i(v0) |  ~ sequential(v0,
% 78.85/11.36  |            v1) | edge(v1))
% 78.85/11.36  |   (5)   ! [v0: $i] :  ! [v1: $i] : (v1 = v0 |  ~ $i(v1) |  ~ $i(v0) |  ~
% 78.85/11.36  |          edge(v1) |  ~ edge(v0) | sequential(v0, v1) |  ? [v2: $i] :  ? [v3:
% 78.85/11.36  |            $i] : ( ~ (v3 = v2) & head_of(v0) = v2 & tail_of(v1) = v3 & $i(v3)
% 78.85/11.36  |            & $i(v2)))
% 78.85/11.36  | 
% 78.85/11.36  | ALPHA: (precedes_properties) implies:
% 78.85/11.36  |   (6)   ! [v0: $i] :  ! [v1: $i] :  ! [v2: $i] :  ! [v3: $i] :  ! [v4: $i] : (
% 78.85/11.36  |          ~ $i(v4) |  ~ $i(v3) |  ~ $i(v2) |  ~ $i(v1) |  ~ $i(v0) |  ~
% 78.85/11.36  |          precedes(v1, v2, v0) |  ~ path(v3, v4, v0) | on_path(v1, v0))
% 78.85/11.36  |   (7)   ! [v0: $i] :  ! [v1: $i] :  ! [v2: $i] :  ! [v3: $i] :  ! [v4: $i] : (
% 78.85/11.36  |          ~ $i(v4) |  ~ $i(v3) |  ~ $i(v2) |  ~ $i(v1) |  ~ $i(v0) |  ~
% 78.85/11.36  |          precedes(v1, v2, v0) |  ~ path(v3, v4, v0) | on_path(v2, v0))
% 78.85/11.36  | 
% 78.85/11.36  | ALPHA: (shortest_path_defn) implies:
% 78.85/11.36  |   (8)   ! [v0: $i] :  ! [v1: $i] :  ! [v2: $i] : ( ~ $i(v2) |  ~ $i(v1) |  ~
% 78.85/11.36  |          $i(v0) |  ~ shortest_path(v0, v1, v2) | path(v0, v1, v2))
% 78.85/11.36  | 
% 78.85/11.36  | ALPHA: (shortest_path_properties) implies:
% 78.85/11.36  |   (9)   ! [v0: $i] :  ! [v1: $i] :  ! [v2: $i] :  ! [v3: $i] :  ! [v4: $i] : (
% 78.85/11.36  |          ~ $i(v4) |  ~ $i(v3) |  ~ $i(v2) |  ~ $i(v1) |  ~ $i(v0) |  ~
% 78.85/11.36  |          shortest_path(v0, v1, v4) |  ~ precedes(v2, v3, v4) |  ? [v5: $i] : 
% 78.85/11.36  |          ? [v6: $i] : (head_of(v3) = v6 & tail_of(v2) = v5 & $i(v6) & $i(v5) &
% 78.85/11.36  |             ? [v7: $i] : ( ~ $i(v7) |  ? [v8: $i] :  ? [v9: $i] : (( ~ (v9 =
% 78.85/11.36  |                    v6) & head_of(v7) = v9 & $i(v9)) | ( ~ (v8 = v5) &
% 78.85/11.36  |                  tail_of(v7) = v8 & $i(v8))))))
% 78.85/11.36  | 
% 78.85/11.36  | ALPHA: (triangle_defn) implies:
% 78.85/11.36  |   (10)   ! [v0: $i] :  ! [v1: $i] :  ! [v2: $i] : ( ~ $i(v2) |  ~ $i(v1) |  ~
% 78.85/11.36  |           $i(v0) |  ~ sequential(v2, v0) |  ~ sequential(v1, v2) |  ~
% 78.85/11.36  |           sequential(v0, v1) |  ~ edge(v2) |  ~ edge(v1) |  ~ edge(v0) |
% 78.85/11.36  |           triangle(v0, v1, v2))
% 78.85/11.36  | 
% 78.85/11.36  | ALPHA: (function-axioms) implies:
% 78.85/11.36  |   (11)   ! [v0: $i] :  ! [v1: $i] :  ! [v2: $i] : (v1 = v0 |  ~ (tail_of(v2) =
% 78.85/11.36  |             v1) |  ~ (tail_of(v2) = v0))
% 78.85/11.36  |   (12)   ! [v0: $i] :  ! [v1: $i] :  ! [v2: $i] : (v1 = v0 |  ~ (head_of(v2) =
% 78.85/11.36  |             v1) |  ~ (head_of(v2) = v0))
% 78.85/11.36  | 
% 78.85/11.36  | DELTA: instantiating (sequential_is_triangle) with fresh symbols all_19_0,
% 78.85/11.36  |        all_19_1, all_19_2, all_19_3, all_19_4 gives:
% 78.85/11.37  |   (13)  $i(all_19_0) & $i(all_19_1) & $i(all_19_2) & $i(all_19_3) &
% 78.85/11.37  |         $i(all_19_4) & shortest_path(all_19_4, all_19_3, all_19_0) &
% 78.85/11.37  |         precedes(all_19_2, all_19_1, all_19_0) & sequential(all_19_2,
% 78.85/11.37  |           all_19_1) & complete &  ! [v0: $i] : ( ~ $i(v0) |  ~
% 78.85/11.37  |           triangle(all_19_2, all_19_1, v0))
% 78.85/11.37  | 
% 78.85/11.37  | ALPHA: (13) implies:
% 78.85/11.37  |   (14)  complete
% 78.85/11.37  |   (15)  sequential(all_19_2, all_19_1)
% 78.85/11.37  |   (16)  precedes(all_19_2, all_19_1, all_19_0)
% 78.85/11.37  |   (17)  shortest_path(all_19_4, all_19_3, all_19_0)
% 78.85/11.37  |   (18)  $i(all_19_4)
% 78.85/11.37  |   (19)  $i(all_19_3)
% 78.85/11.37  |   (20)  $i(all_19_2)
% 78.85/11.37  |   (21)  $i(all_19_1)
% 78.85/11.37  |   (22)  $i(all_19_0)
% 78.85/11.37  |   (23)   ! [v0: $i] : ( ~ $i(v0) |  ~ triangle(all_19_2, all_19_1, v0))
% 78.85/11.37  | 
% 78.85/11.37  | BETA: splitting (back_edge) gives:
% 78.85/11.37  | 
% 78.85/11.37  | Case 1:
% 78.85/11.37  | | 
% 78.85/11.37  | |   (24)   ~ complete
% 78.85/11.37  | | 
% 78.85/11.37  | | PRED_UNIFY: (14), (24) imply:
% 78.85/11.37  | |   (25)  $false
% 78.85/11.37  | | 
% 78.85/11.37  | | CLOSE: (25) is inconsistent.
% 78.85/11.37  | | 
% 78.85/11.37  | Case 2:
% 78.85/11.37  | | 
% 78.85/11.38  | |   (26)   ! [v0: $i] :  ! [v1: $i] :  ! [v2: $i] :  ! [v3: $i] :  ! [v4: $i]
% 78.85/11.38  | |         : ( ~ $i(v4) |  ~ $i(v3) |  ~ $i(v2) |  ~ $i(v1) |  ~ $i(v0) |  ~
% 78.85/11.38  | |           shortest_path(v0, v1, v4) |  ~ precedes(v2, v3, v4) |  ? [v5: $i]
% 78.85/11.38  | |           :  ? [v6: $i] :  ? [v7: $i] : (head_of(v7) = v6 & head_of(v3) = v5
% 78.85/11.39  | |             & tail_of(v7) = v5 & tail_of(v2) = v6 & $i(v7) & $i(v6) & $i(v5)
% 78.85/11.39  | |             & edge(v7)))
% 78.85/11.39  | | 
% 78.85/11.39  | | GROUND_INST: instantiating (4) with all_19_2, all_19_1, simplifying with
% 78.85/11.39  | |              (15), (20), (21) gives:
% 78.85/11.39  | |   (27)  edge(all_19_1)
% 78.85/11.39  | | 
% 78.85/11.39  | | GROUND_INST: instantiating (3) with all_19_2, all_19_1, simplifying with
% 78.85/11.39  | |              (15), (20), (21) gives:
% 78.85/11.39  | |   (28)  edge(all_19_2)
% 78.85/11.39  | | 
% 78.85/11.39  | | GROUND_INST: instantiating (2) with all_19_2, all_19_1, simplifying with
% 78.85/11.39  | |              (15), (20), (21) gives:
% 78.85/11.39  | |   (29)   ? [v0: $i] : (head_of(all_19_2) = v0 & tail_of(all_19_1) = v0 &
% 78.85/11.39  | |           $i(v0))
% 78.85/11.39  | | 
% 78.85/11.39  | | GROUND_INST: instantiating (26) with all_19_4, all_19_3, all_19_2, all_19_1,
% 78.85/11.39  | |              all_19_0, simplifying with (16), (17), (18), (19), (20), (21),
% 78.85/11.39  | |              (22) gives:
% 78.85/11.39  | |   (30)   ? [v0: $i] :  ? [v1: $i] :  ? [v2: $i] : (head_of(v2) = v1 &
% 78.85/11.39  | |           head_of(all_19_1) = v0 & tail_of(v2) = v0 & tail_of(all_19_2) = v1
% 78.85/11.39  | |           & $i(v2) & $i(v1) & $i(v0) & edge(v2))
% 78.85/11.39  | | 
% 78.85/11.39  | | GROUND_INST: instantiating (9) with all_19_4, all_19_3, all_19_2, all_19_1,
% 78.85/11.39  | |              all_19_0, simplifying with (16), (17), (18), (19), (20), (21),
% 78.85/11.39  | |              (22) gives:
% 78.85/11.39  | |   (31)   ? [v0: $i] :  ? [v1: $i] : (head_of(all_19_1) = v1 &
% 78.85/11.39  | |           tail_of(all_19_2) = v0 & $i(v1) & $i(v0) &  ? [v2: $i] : ( ~
% 78.85/11.39  | |             $i(v2) |  ? [v3: $i] :  ? [v4: $i] : (( ~ (v4 = v1) &
% 78.85/11.39  | |                 head_of(v2) = v4 & $i(v4)) | ( ~ (v3 = v0) & tail_of(v2) =
% 78.85/11.39  | |                 v3 & $i(v3)))))
% 78.85/11.39  | | 
% 78.85/11.39  | | GROUND_INST: instantiating (8) with all_19_4, all_19_3, all_19_0,
% 78.85/11.39  | |              simplifying with (17), (18), (19), (22) gives:
% 78.85/11.39  | |   (32)  path(all_19_4, all_19_3, all_19_0)
% 78.85/11.39  | | 
% 78.85/11.39  | | DELTA: instantiating (29) with fresh symbol all_39_0 gives:
% 78.85/11.39  | |   (33)  head_of(all_19_2) = all_39_0 & tail_of(all_19_1) = all_39_0 &
% 78.85/11.39  | |         $i(all_39_0)
% 78.85/11.39  | | 
% 78.85/11.39  | | ALPHA: (33) implies:
% 78.85/11.39  | |   (34)  tail_of(all_19_1) = all_39_0
% 78.85/11.39  | |   (35)  head_of(all_19_2) = all_39_0
% 78.85/11.39  | | 
% 78.85/11.39  | | DELTA: instantiating (30) with fresh symbols all_44_0, all_44_1, all_44_2
% 78.85/11.39  | |        gives:
% 78.85/11.39  | |   (36)  head_of(all_44_0) = all_44_1 & head_of(all_19_1) = all_44_2 &
% 78.85/11.39  | |         tail_of(all_44_0) = all_44_2 & tail_of(all_19_2) = all_44_1 &
% 78.85/11.39  | |         $i(all_44_0) & $i(all_44_1) & $i(all_44_2) & edge(all_44_0)
% 78.85/11.39  | | 
% 78.85/11.39  | | ALPHA: (36) implies:
% 78.85/11.39  | |   (37)  edge(all_44_0)
% 78.85/11.39  | |   (38)  $i(all_44_0)
% 78.85/11.39  | |   (39)  tail_of(all_19_2) = all_44_1
% 78.85/11.39  | |   (40)  tail_of(all_44_0) = all_44_2
% 78.85/11.39  | |   (41)  head_of(all_19_1) = all_44_2
% 78.85/11.40  | |   (42)  head_of(all_44_0) = all_44_1
% 78.85/11.40  | | 
% 78.85/11.40  | | DELTA: instantiating (31) with fresh symbols all_46_0, all_46_1 gives:
% 78.85/11.40  | |   (43)  head_of(all_19_1) = all_46_0 & tail_of(all_19_2) = all_46_1 &
% 78.85/11.40  | |         $i(all_46_0) & $i(all_46_1) &  ? [v0: $i] : ( ~ $i(v0) |  ? [v1:
% 78.85/11.40  | |             any] :  ? [v2: any] : (( ~ (v2 = all_46_0) & head_of(v0) = v2 &
% 78.85/11.40  | |               $i(v2)) | ( ~ (v1 = all_46_1) & tail_of(v0) = v1 & $i(v1))))
% 78.85/11.40  | | 
% 78.85/11.40  | | ALPHA: (43) implies:
% 78.85/11.40  | |   (44)  tail_of(all_19_2) = all_46_1
% 78.85/11.40  | |   (45)  head_of(all_19_1) = all_46_0
% 78.85/11.40  | | 
% 78.85/11.40  | | GROUND_INST: instantiating (11) with all_44_1, all_46_1, all_19_2,
% 78.85/11.40  | |              simplifying with (39), (44) gives:
% 78.85/11.40  | |   (46)  all_46_1 = all_44_1
% 78.85/11.40  | | 
% 78.85/11.40  | | GROUND_INST: instantiating (12) with all_44_2, all_46_0, all_19_1,
% 78.85/11.40  | |              simplifying with (41), (45) gives:
% 78.85/11.40  | |   (47)  all_46_0 = all_44_2
% 78.85/11.40  | | 
% 78.85/11.40  | | GROUND_INST: instantiating (no_loops) with all_19_2, simplifying with (20),
% 78.85/11.40  | |              (28) gives:
% 78.85/11.40  | |   (48)   ? [v0: $i] :  ? [v1: $i] : ( ~ (v1 = v0) & head_of(all_19_2) = v0 &
% 78.85/11.40  | |           tail_of(all_19_2) = v1 & $i(v1) & $i(v0))
% 78.85/11.40  | | 
% 78.85/11.40  | | GROUND_INST: instantiating (edge_ends_are_vertices) with all_19_2,
% 78.85/11.40  | |              simplifying with (20), (28) gives:
% 78.85/11.40  | |   (49)   ? [v0: $i] :  ? [v1: $i] : (head_of(all_19_2) = v0 &
% 78.85/11.40  | |           tail_of(all_19_2) = v1 & $i(v1) & $i(v0) & vertex(v1) &
% 78.85/11.40  | |           vertex(v0))
% 78.85/11.40  | | 
% 78.85/11.40  | | GROUND_INST: instantiating (no_loops) with all_19_1, simplifying with (21),
% 78.85/11.40  | |              (27) gives:
% 78.85/11.40  | |   (50)   ? [v0: $i] :  ? [v1: $i] : ( ~ (v1 = v0) & head_of(all_19_1) = v0 &
% 78.85/11.40  | |           tail_of(all_19_1) = v1 & $i(v1) & $i(v0))
% 78.85/11.40  | | 
% 78.85/11.40  | | GROUND_INST: instantiating (edge_ends_are_vertices) with all_19_1,
% 78.85/11.40  | |              simplifying with (21), (27) gives:
% 78.85/11.40  | |   (51)   ? [v0: $i] :  ? [v1: $i] : (head_of(all_19_1) = v0 &
% 78.85/11.40  | |           tail_of(all_19_1) = v1 & $i(v1) & $i(v0) & vertex(v1) &
% 78.85/11.40  | |           vertex(v0))
% 78.85/11.40  | | 
% 78.85/11.40  | | GROUND_INST: instantiating (5) with all_19_1, all_44_0, simplifying with
% 78.85/11.40  | |              (21), (27), (37), (38) gives:
% 78.85/11.40  | |   (52)  all_44_0 = all_19_1 | sequential(all_19_1, all_44_0) |  ? [v0: $i] :
% 78.85/11.40  | |          ? [v1: $i] : ( ~ (v1 = v0) & head_of(all_19_1) = v0 &
% 78.85/11.40  | |           tail_of(all_44_0) = v1 & $i(v1) & $i(v0))
% 78.85/11.40  | | 
% 78.85/11.40  | | GROUND_INST: instantiating (5) with all_44_0, all_19_2, simplifying with
% 78.85/11.40  | |              (20), (28), (37), (38) gives:
% 78.85/11.40  | |   (53)  all_44_0 = all_19_2 | sequential(all_44_0, all_19_2) |  ? [v0: $i] :
% 78.85/11.40  | |          ? [v1: $i] : ( ~ (v1 = v0) & head_of(all_44_0) = v0 &
% 78.85/11.40  | |           tail_of(all_19_2) = v1 & $i(v1) & $i(v0))
% 78.85/11.40  | | 
% 78.85/11.40  | | GROUND_INST: instantiating (no_loops) with all_44_0, simplifying with (37),
% 78.85/11.41  | |              (38) gives:
% 78.85/11.41  | |   (54)   ? [v0: $i] :  ? [v1: $i] : ( ~ (v1 = v0) & head_of(all_44_0) = v0 &
% 78.85/11.41  | |           tail_of(all_44_0) = v1 & $i(v1) & $i(v0))
% 78.85/11.41  | | 
% 78.85/11.41  | | GROUND_INST: instantiating (edge_ends_are_vertices) with all_44_0,
% 78.85/11.41  | |              simplifying with (37), (38) gives:
% 78.85/11.41  | |   (55)   ? [v0: $i] :  ? [v1: $i] : (head_of(all_44_0) = v0 &
% 78.85/11.41  | |           tail_of(all_44_0) = v1 & $i(v1) & $i(v0) & vertex(v1) &
% 78.85/11.41  | |           vertex(v0))
% 78.85/11.41  | | 
% 78.85/11.41  | | GROUND_INST: instantiating (7) with all_19_0, all_19_2, all_19_1, all_19_4,
% 78.85/11.41  | |              all_19_3, simplifying with (16), (18), (19), (20), (21), (22),
% 78.85/11.41  | |              (32) gives:
% 78.85/11.41  | |   (56)  on_path(all_19_1, all_19_0)
% 78.85/11.41  | | 
% 78.85/11.41  | | GROUND_INST: instantiating (6) with all_19_0, all_19_2, all_19_1, all_19_4,
% 78.85/11.41  | |              all_19_3, simplifying with (16), (18), (19), (20), (21), (22),
% 78.85/11.41  | |              (32) gives:
% 78.85/11.41  | |   (57)  on_path(all_19_2, all_19_0)
% 78.85/11.41  | | 
% 78.85/11.41  | | DELTA: instantiating (50) with fresh symbols all_61_0, all_61_1 gives:
% 78.85/11.41  | |   (58)   ~ (all_61_0 = all_61_1) & head_of(all_19_1) = all_61_1 &
% 78.85/11.41  | |         tail_of(all_19_1) = all_61_0 & $i(all_61_0) & $i(all_61_1)
% 78.85/11.41  | | 
% 78.85/11.41  | | ALPHA: (58) implies:
% 78.85/11.41  | |   (59)   ~ (all_61_0 = all_61_1)
% 78.85/11.41  | |   (60)  tail_of(all_19_1) = all_61_0
% 78.85/11.41  | |   (61)  head_of(all_19_1) = all_61_1
% 78.85/11.41  | | 
% 78.85/11.41  | | DELTA: instantiating (48) with fresh symbols all_63_0, all_63_1 gives:
% 78.85/11.41  | |   (62)   ~ (all_63_0 = all_63_1) & head_of(all_19_2) = all_63_1 &
% 78.85/11.41  | |         tail_of(all_19_2) = all_63_0 & $i(all_63_0) & $i(all_63_1)
% 78.85/11.41  | | 
% 78.85/11.41  | | ALPHA: (62) implies:
% 78.85/11.41  | |   (63)   ~ (all_63_0 = all_63_1)
% 78.85/11.41  | |   (64)  tail_of(all_19_2) = all_63_0
% 78.85/11.41  | |   (65)  head_of(all_19_2) = all_63_1
% 78.85/11.41  | | 
% 78.85/11.41  | | DELTA: instantiating (54) with fresh symbols all_65_0, all_65_1 gives:
% 78.85/11.41  | |   (66)   ~ (all_65_0 = all_65_1) & head_of(all_44_0) = all_65_1 &
% 78.85/11.41  | |         tail_of(all_44_0) = all_65_0 & $i(all_65_0) & $i(all_65_1)
% 78.85/11.41  | | 
% 78.85/11.41  | | ALPHA: (66) implies:
% 78.85/11.41  | |   (67)  tail_of(all_44_0) = all_65_0
% 78.85/11.41  | |   (68)  head_of(all_44_0) = all_65_1
% 78.85/11.41  | | 
% 78.85/11.41  | | DELTA: instantiating (49) with fresh symbols all_67_0, all_67_1 gives:
% 78.85/11.41  | |   (69)  head_of(all_19_2) = all_67_1 & tail_of(all_19_2) = all_67_0 &
% 78.85/11.41  | |         $i(all_67_0) & $i(all_67_1) & vertex(all_67_0) & vertex(all_67_1)
% 78.85/11.41  | | 
% 78.85/11.41  | | ALPHA: (69) implies:
% 78.85/11.41  | |   (70)  tail_of(all_19_2) = all_67_0
% 78.85/11.41  | |   (71)  head_of(all_19_2) = all_67_1
% 78.85/11.41  | | 
% 78.85/11.41  | | DELTA: instantiating (51) with fresh symbols all_69_0, all_69_1 gives:
% 78.85/11.41  | |   (72)  head_of(all_19_1) = all_69_1 & tail_of(all_19_1) = all_69_0 &
% 78.85/11.41  | |         $i(all_69_0) & $i(all_69_1) & vertex(all_69_0) & vertex(all_69_1)
% 78.85/11.41  | | 
% 78.85/11.41  | | ALPHA: (72) implies:
% 78.85/11.41  | |   (73)  tail_of(all_19_1) = all_69_0
% 78.85/11.41  | |   (74)  head_of(all_19_1) = all_69_1
% 78.85/11.41  | | 
% 78.85/11.41  | | DELTA: instantiating (55) with fresh symbols all_71_0, all_71_1 gives:
% 78.85/11.41  | |   (75)  head_of(all_44_0) = all_71_1 & tail_of(all_44_0) = all_71_0 &
% 78.85/11.41  | |         $i(all_71_0) & $i(all_71_1) & vertex(all_71_0) & vertex(all_71_1)
% 78.85/11.41  | | 
% 78.85/11.41  | | ALPHA: (75) implies:
% 78.85/11.41  | |   (76)  tail_of(all_44_0) = all_71_0
% 78.85/11.41  | |   (77)  head_of(all_44_0) = all_71_1
% 78.85/11.41  | | 
% 78.85/11.41  | | GROUND_INST: instantiating (11) with all_44_1, all_67_0, all_19_2,
% 78.85/11.42  | |              simplifying with (39), (70) gives:
% 78.85/11.42  | |   (78)  all_67_0 = all_44_1
% 78.85/11.42  | | 
% 78.85/11.42  | | GROUND_INST: instantiating (11) with all_63_0, all_67_0, all_19_2,
% 78.85/11.42  | |              simplifying with (64), (70) gives:
% 78.85/11.42  | |   (79)  all_67_0 = all_63_0
% 78.85/11.42  | | 
% 78.85/11.42  | | GROUND_INST: instantiating (11) with all_39_0, all_69_0, all_19_1,
% 78.85/11.42  | |              simplifying with (34), (73) gives:
% 78.85/11.42  | |   (80)  all_69_0 = all_39_0
% 78.85/11.42  | | 
% 78.85/11.42  | | GROUND_INST: instantiating (11) with all_61_0, all_69_0, all_19_1,
% 78.85/11.42  | |              simplifying with (60), (73) gives:
% 78.85/11.42  | |   (81)  all_69_0 = all_61_0
% 78.85/11.42  | | 
% 78.85/11.42  | | GROUND_INST: instantiating (11) with all_44_2, all_71_0, all_44_0,
% 78.85/11.42  | |              simplifying with (40), (76) gives:
% 78.85/11.42  | |   (82)  all_71_0 = all_44_2
% 78.85/11.42  | | 
% 78.85/11.42  | | GROUND_INST: instantiating (11) with all_65_0, all_71_0, all_44_0,
% 78.85/11.42  | |              simplifying with (67), (76) gives:
% 78.85/11.42  | |   (83)  all_71_0 = all_65_0
% 78.85/11.42  | | 
% 78.85/11.42  | | GROUND_INST: instantiating (11) with all_61_0, all_71_0, all_19_1,
% 78.85/11.42  | |              simplifying with (60) gives:
% 78.85/11.42  | |   (84)  all_71_0 = all_61_0 |  ~ (tail_of(all_19_1) = all_71_0)
% 78.85/11.42  | | 
% 78.85/11.42  | | GROUND_INST: instantiating (12) with all_39_0, all_67_1, all_19_2,
% 78.85/11.42  | |              simplifying with (35), (71) gives:
% 78.85/11.42  | |   (85)  all_67_1 = all_39_0
% 78.85/11.42  | | 
% 78.85/11.42  | | GROUND_INST: instantiating (12) with all_63_1, all_67_1, all_19_2,
% 78.85/11.42  | |              simplifying with (65), (71) gives:
% 78.85/11.42  | |   (86)  all_67_1 = all_63_1
% 78.85/11.42  | | 
% 78.85/11.42  | | GROUND_INST: instantiating (12) with all_44_2, all_69_1, all_19_1,
% 78.85/11.42  | |              simplifying with (41), (74) gives:
% 78.85/11.42  | |   (87)  all_69_1 = all_44_2
% 78.85/11.42  | | 
% 78.85/11.42  | | GROUND_INST: instantiating (12) with all_61_1, all_69_1, all_19_1,
% 78.85/11.42  | |              simplifying with (61), (74) gives:
% 78.85/11.42  | |   (88)  all_69_1 = all_61_1
% 78.85/11.42  | | 
% 78.85/11.42  | | GROUND_INST: instantiating (12) with all_44_1, all_71_1, all_44_0,
% 78.85/11.42  | |              simplifying with (42), (77) gives:
% 78.85/11.42  | |   (89)  all_71_1 = all_44_1
% 78.85/11.42  | | 
% 78.85/11.42  | | GROUND_INST: instantiating (12) with all_39_0, all_71_1, all_19_2,
% 78.85/11.42  | |              simplifying with (35) gives:
% 78.85/11.42  | |   (90)  all_71_1 = all_39_0 |  ~ (head_of(all_19_2) = all_71_1)
% 78.85/11.42  | | 
% 78.85/11.42  | | GROUND_INST: instantiating (12) with all_65_1, all_71_1, all_44_0,
% 78.85/11.42  | |              simplifying with (68), (77) gives:
% 78.85/11.42  | |   (91)  all_71_1 = all_65_1
% 78.85/11.42  | | 
% 78.85/11.42  | | COMBINE_EQS: (82), (83) imply:
% 78.85/11.42  | |   (92)  all_65_0 = all_44_2
% 78.85/11.42  | | 
% 78.85/11.42  | | COMBINE_EQS: (89), (91) imply:
% 78.85/11.42  | |   (93)  all_65_1 = all_44_1
% 78.85/11.42  | | 
% 78.85/11.42  | | COMBINE_EQS: (80), (81) imply:
% 78.85/11.42  | |   (94)  all_61_0 = all_39_0
% 78.85/11.42  | | 
% 78.85/11.42  | | SIMP: (94) implies:
% 78.85/11.42  | |   (95)  all_61_0 = all_39_0
% 78.85/11.42  | | 
% 79.52/11.42  | | COMBINE_EQS: (87), (88) imply:
% 79.52/11.42  | |   (96)  all_61_1 = all_44_2
% 79.52/11.42  | | 
% 79.52/11.42  | | COMBINE_EQS: (78), (79) imply:
% 79.52/11.42  | |   (97)  all_63_0 = all_44_1
% 79.52/11.42  | | 
% 79.52/11.42  | | SIMP: (97) implies:
% 79.52/11.42  | |   (98)  all_63_0 = all_44_1
% 79.52/11.42  | | 
% 79.52/11.42  | | COMBINE_EQS: (85), (86) imply:
% 79.52/11.42  | |   (99)  all_63_1 = all_39_0
% 79.52/11.42  | | 
% 79.52/11.42  | | SIMP: (99) implies:
% 79.52/11.42  | |   (100)  all_63_1 = all_39_0
% 79.52/11.42  | | 
% 79.52/11.43  | | REDUCE: (63), (98), (100) imply:
% 79.52/11.43  | |   (101)   ~ (all_44_1 = all_39_0)
% 79.52/11.43  | | 
% 79.52/11.43  | | REDUCE: (59), (95), (96) imply:
% 79.52/11.43  | |   (102)   ~ (all_44_2 = all_39_0)
% 79.52/11.43  | | 
% 79.52/11.43  | | SIMP: (102) implies:
% 79.52/11.43  | |   (103)   ~ (all_44_2 = all_39_0)
% 79.52/11.43  | | 
% 79.52/11.43  | | GROUND_INST: instantiating (1) with all_19_4, all_19_3, all_19_0, all_19_2,
% 79.52/11.43  | |              simplifying with (18), (19), (20), (22), (32), (57) gives:
% 79.52/11.43  | |   (104)   ? [v0: $i] :  ? [v1: $i] : (head_of(all_19_2) = v0 &
% 79.52/11.43  | |            tail_of(all_19_2) = v1 & $i(v1) & $i(v0) & in_path(v1, all_19_0)
% 79.52/11.43  | |            & in_path(v0, all_19_0))
% 79.52/11.43  | | 
% 79.52/11.43  | | GROUND_INST: instantiating (1) with all_19_4, all_19_3, all_19_0, all_19_1,
% 79.52/11.43  | |              simplifying with (18), (19), (21), (22), (32), (56) gives:
% 79.52/11.43  | |   (105)   ? [v0: $i] :  ? [v1: $i] : (head_of(all_19_1) = v0 &
% 79.52/11.43  | |            tail_of(all_19_1) = v1 & $i(v1) & $i(v0) & in_path(v1, all_19_0)
% 79.52/11.43  | |            & in_path(v0, all_19_0))
% 79.52/11.43  | | 
% 79.52/11.43  | | DELTA: instantiating (105) with fresh symbols all_86_0, all_86_1 gives:
% 79.52/11.43  | |   (106)  head_of(all_19_1) = all_86_1 & tail_of(all_19_1) = all_86_0 &
% 79.52/11.43  | |          $i(all_86_0) & $i(all_86_1) & in_path(all_86_0, all_19_0) &
% 79.52/11.43  | |          in_path(all_86_1, all_19_0)
% 79.52/11.43  | | 
% 79.52/11.43  | | ALPHA: (106) implies:
% 79.52/11.43  | |   (107)  head_of(all_19_1) = all_86_1
% 79.52/11.43  | | 
% 79.52/11.43  | | DELTA: instantiating (104) with fresh symbols all_88_0, all_88_1 gives:
% 79.52/11.43  | |   (108)  head_of(all_19_2) = all_88_1 & tail_of(all_19_2) = all_88_0 &
% 79.52/11.43  | |          $i(all_88_0) & $i(all_88_1) & in_path(all_88_0, all_19_0) &
% 79.52/11.43  | |          in_path(all_88_1, all_19_0)
% 79.52/11.43  | | 
% 79.52/11.43  | | ALPHA: (108) implies:
% 79.52/11.43  | |   (109)  tail_of(all_19_2) = all_88_0
% 79.52/11.43  | | 
% 79.52/11.43  | | BETA: splitting (84) gives:
% 79.52/11.43  | | 
% 79.52/11.43  | | Case 1:
% 79.52/11.43  | | | 
% 79.52/11.43  | | |   (110)   ~ (tail_of(all_19_1) = all_71_0)
% 79.52/11.43  | | | 
% 79.52/11.43  | | | REDUCE: (82), (110) imply:
% 79.52/11.43  | | |   (111)   ~ (tail_of(all_19_1) = all_44_2)
% 79.52/11.43  | | | 
% 79.52/11.43  | | | BETA: splitting (90) gives:
% 79.52/11.43  | | | 
% 79.52/11.43  | | | Case 1:
% 79.52/11.43  | | | | 
% 79.52/11.43  | | | |   (112)   ~ (head_of(all_19_2) = all_71_1)
% 79.52/11.43  | | | | 
% 79.52/11.43  | | | | REDUCE: (89), (112) imply:
% 79.52/11.43  | | | |   (113)   ~ (head_of(all_19_2) = all_44_1)
% 79.52/11.43  | | | | 
% 79.52/11.43  | | | | GROUND_INST: instantiating (11) with all_44_1, all_88_0, all_19_2,
% 79.52/11.43  | | | |              simplifying with (39), (109) gives:
% 79.52/11.43  | | | |   (114)  all_88_0 = all_44_1
% 79.52/11.43  | | | | 
% 79.52/11.43  | | | | GROUND_INST: instantiating (12) with all_44_2, all_86_1, all_19_1,
% 79.52/11.43  | | | |              simplifying with (41), (107) gives:
% 79.52/11.43  | | | |   (115)  all_86_1 = all_44_2
% 79.52/11.43  | | | | 
% 79.52/11.43  | | | | PRED_UNIFY: (40), (111) imply:
% 79.52/11.43  | | | |   (116)   ~ (all_44_0 = all_19_1)
% 79.52/11.43  | | | | 
% 79.52/11.43  | | | | PRED_UNIFY: (42), (113) imply:
% 79.52/11.43  | | | |   (117)   ~ (all_44_0 = all_19_2)
% 79.52/11.43  | | | | 
% 79.52/11.43  | | | | BETA: splitting (53) gives:
% 79.52/11.43  | | | | 
% 79.52/11.43  | | | | Case 1:
% 79.52/11.43  | | | | | 
% 79.52/11.43  | | | | |   (118)  sequential(all_44_0, all_19_2)
% 79.52/11.43  | | | | | 
% 79.52/11.43  | | | | | BETA: splitting (52) gives:
% 79.52/11.43  | | | | | 
% 79.52/11.43  | | | | | Case 1:
% 79.52/11.43  | | | | | | 
% 79.52/11.43  | | | | | |   (119)  sequential(all_19_1, all_44_0)
% 79.52/11.43  | | | | | | 
% 79.52/11.43  | | | | | | GROUND_INST: instantiating (10) with all_19_2, all_19_1, all_44_0,
% 79.52/11.43  | | | | | |              simplifying with (15), (20), (21), (27), (28), (37),
% 79.52/11.43  | | | | | |              (38), (118), (119) gives:
% 79.52/11.43  | | | | | |   (120)  triangle(all_19_2, all_19_1, all_44_0)
% 79.52/11.43  | | | | | | 
% 79.52/11.43  | | | | | | GROUND_INST: instantiating (23) with all_44_0, simplifying with
% 79.52/11.43  | | | | | |              (38), (120) gives:
% 79.52/11.43  | | | | | |   (121)  $false
% 79.52/11.43  | | | | | | 
% 79.52/11.43  | | | | | | CLOSE: (121) is inconsistent.
% 79.52/11.43  | | | | | | 
% 79.52/11.43  | | | | | Case 2:
% 79.52/11.43  | | | | | | 
% 79.52/11.44  | | | | | |   (122)  all_44_0 = all_19_1 |  ? [v0: $i] :  ? [v1: $i] : ( ~ (v1 =
% 79.52/11.44  | | | | | |              v0) & head_of(all_19_1) = v0 & tail_of(all_44_0) = v1 &
% 79.52/11.44  | | | | | |            $i(v1) & $i(v0))
% 79.52/11.44  | | | | | | 
% 79.52/11.44  | | | | | | BETA: splitting (122) gives:
% 79.52/11.44  | | | | | | 
% 79.52/11.44  | | | | | | Case 1:
% 79.52/11.44  | | | | | | | 
% 79.52/11.44  | | | | | | |   (123)  all_44_0 = all_19_1
% 79.52/11.44  | | | | | | | 
% 79.52/11.44  | | | | | | | REDUCE: (116), (123) imply:
% 79.52/11.44  | | | | | | |   (124)  $false
% 79.52/11.44  | | | | | | | 
% 79.52/11.44  | | | | | | | CLOSE: (124) is inconsistent.
% 79.52/11.44  | | | | | | | 
% 79.52/11.44  | | | | | | Case 2:
% 79.52/11.44  | | | | | | | 
% 79.52/11.44  | | | | | | |   (125)   ? [v0: $i] :  ? [v1: $i] : ( ~ (v1 = v0) &
% 79.52/11.44  | | | | | | |            head_of(all_19_1) = v0 & tail_of(all_44_0) = v1 &
% 79.52/11.44  | | | | | | |            $i(v1) & $i(v0))
% 79.52/11.44  | | | | | | | 
% 79.52/11.44  | | | | | | | DELTA: instantiating (125) with fresh symbols all_141_0, all_141_1
% 79.52/11.44  | | | | | | |        gives:
% 79.52/11.44  | | | | | | |   (126)   ~ (all_141_0 = all_141_1) & head_of(all_19_1) =
% 79.52/11.44  | | | | | | |          all_141_1 & tail_of(all_44_0) = all_141_0 & $i(all_141_0)
% 79.52/11.44  | | | | | | |          & $i(all_141_1)
% 79.52/11.44  | | | | | | | 
% 79.52/11.44  | | | | | | | ALPHA: (126) implies:
% 79.52/11.44  | | | | | | |   (127)   ~ (all_141_0 = all_141_1)
% 79.52/11.44  | | | | | | |   (128)  tail_of(all_44_0) = all_141_0
% 79.52/11.44  | | | | | | |   (129)  head_of(all_19_1) = all_141_1
% 79.52/11.44  | | | | | | | 
% 79.52/11.44  | | | | | | | GROUND_INST: instantiating (11) with all_44_2, all_141_0,
% 79.52/11.44  | | | | | | |              all_44_0, simplifying with (40), (128) gives:
% 79.52/11.44  | | | | | | |   (130)  all_141_0 = all_44_2
% 79.52/11.44  | | | | | | | 
% 79.52/11.44  | | | | | | | GROUND_INST: instantiating (12) with all_44_2, all_141_1,
% 79.52/11.44  | | | | | | |              all_19_1, simplifying with (41), (129) gives:
% 79.52/11.44  | | | | | | |   (131)  all_141_1 = all_44_2
% 79.52/11.44  | | | | | | | 
% 79.52/11.44  | | | | | | | REDUCE: (127), (130), (131) imply:
% 79.52/11.44  | | | | | | |   (132)  $false
% 79.52/11.44  | | | | | | | 
% 79.52/11.44  | | | | | | | CLOSE: (132) is inconsistent.
% 79.52/11.44  | | | | | | | 
% 79.52/11.44  | | | | | | End of split
% 79.52/11.44  | | | | | | 
% 79.52/11.44  | | | | | End of split
% 79.52/11.44  | | | | | 
% 79.52/11.44  | | | | Case 2:
% 79.52/11.44  | | | | | 
% 79.52/11.44  | | | | |   (133)  all_44_0 = all_19_2 |  ? [v0: $i] :  ? [v1: $i] : ( ~ (v1 =
% 79.52/11.44  | | | | |              v0) & head_of(all_44_0) = v0 & tail_of(all_19_2) = v1 &
% 79.52/11.44  | | | | |            $i(v1) & $i(v0))
% 79.52/11.44  | | | | | 
% 79.52/11.44  | | | | | BETA: splitting (133) gives:
% 79.52/11.44  | | | | | 
% 79.52/11.44  | | | | | Case 1:
% 79.52/11.44  | | | | | | 
% 79.52/11.44  | | | | | |   (134)  all_44_0 = all_19_2
% 79.52/11.44  | | | | | | 
% 79.52/11.44  | | | | | | REDUCE: (117), (134) imply:
% 79.52/11.44  | | | | | |   (135)  $false
% 79.52/11.44  | | | | | | 
% 79.52/11.44  | | | | | | CLOSE: (135) is inconsistent.
% 79.52/11.44  | | | | | | 
% 79.52/11.44  | | | | | Case 2:
% 79.52/11.44  | | | | | | 
% 79.52/11.44  | | | | | |   (136)   ? [v0: $i] :  ? [v1: $i] : ( ~ (v1 = v0) &
% 79.52/11.44  | | | | | |            head_of(all_44_0) = v0 & tail_of(all_19_2) = v1 & $i(v1)
% 79.52/11.44  | | | | | |            & $i(v0))
% 79.52/11.44  | | | | | | 
% 79.52/11.44  | | | | | | DELTA: instantiating (136) with fresh symbols all_141_0, all_141_1
% 79.52/11.44  | | | | | |        gives:
% 79.52/11.44  | | | | | |   (137)   ~ (all_141_0 = all_141_1) & head_of(all_44_0) = all_141_1
% 79.52/11.44  | | | | | |          & tail_of(all_19_2) = all_141_0 & $i(all_141_0) &
% 79.52/11.44  | | | | | |          $i(all_141_1)
% 79.52/11.44  | | | | | | 
% 79.52/11.44  | | | | | | ALPHA: (137) implies:
% 79.52/11.44  | | | | | |   (138)   ~ (all_141_0 = all_141_1)
% 79.52/11.44  | | | | | |   (139)  tail_of(all_19_2) = all_141_0
% 79.52/11.44  | | | | | |   (140)  head_of(all_44_0) = all_141_1
% 79.52/11.44  | | | | | | 
% 79.52/11.44  | | | | | | GROUND_INST: instantiating (11) with all_44_1, all_141_0, all_19_2,
% 79.52/11.44  | | | | | |              simplifying with (39), (139) gives:
% 79.52/11.44  | | | | | |   (141)  all_141_0 = all_44_1
% 79.52/11.44  | | | | | | 
% 79.52/11.44  | | | | | | GROUND_INST: instantiating (12) with all_44_1, all_141_1, all_44_0,
% 79.52/11.44  | | | | | |              simplifying with (42), (140) gives:
% 79.52/11.44  | | | | | |   (142)  all_141_1 = all_44_1
% 79.52/11.44  | | | | | | 
% 79.52/11.44  | | | | | | REDUCE: (138), (141), (142) imply:
% 79.52/11.44  | | | | | |   (143)  $false
% 79.52/11.44  | | | | | | 
% 79.52/11.44  | | | | | | CLOSE: (143) is inconsistent.
% 79.52/11.44  | | | | | | 
% 79.52/11.44  | | | | | End of split
% 79.52/11.44  | | | | | 
% 79.52/11.44  | | | | End of split
% 79.52/11.44  | | | | 
% 79.52/11.44  | | | Case 2:
% 79.52/11.44  | | | | 
% 79.52/11.44  | | | |   (144)  all_71_1 = all_39_0
% 79.52/11.44  | | | | 
% 79.52/11.44  | | | | COMBINE_EQS: (89), (144) imply:
% 79.52/11.44  | | | |   (145)  all_44_1 = all_39_0
% 79.52/11.44  | | | | 
% 79.52/11.44  | | | | REDUCE: (101), (145) imply:
% 79.52/11.44  | | | |   (146)  $false
% 79.52/11.44  | | | | 
% 79.52/11.44  | | | | CLOSE: (146) is inconsistent.
% 79.52/11.44  | | | | 
% 79.52/11.44  | | | End of split
% 79.52/11.44  | | | 
% 79.52/11.44  | | Case 2:
% 79.52/11.44  | | | 
% 79.52/11.44  | | |   (147)  all_71_0 = all_61_0
% 79.52/11.44  | | | 
% 79.52/11.44  | | | COMBINE_EQS: (82), (147) imply:
% 79.52/11.44  | | |   (148)  all_61_0 = all_44_2
% 79.52/11.44  | | | 
% 79.52/11.44  | | | SIMP: (148) implies:
% 79.52/11.44  | | |   (149)  all_61_0 = all_44_2
% 79.52/11.44  | | | 
% 79.52/11.44  | | | COMBINE_EQS: (95), (149) imply:
% 79.52/11.44  | | |   (150)  all_44_2 = all_39_0
% 79.52/11.44  | | | 
% 79.52/11.44  | | | SIMP: (150) implies:
% 79.52/11.44  | | |   (151)  all_44_2 = all_39_0
% 79.52/11.44  | | | 
% 79.52/11.44  | | | REDUCE: (103), (151) imply:
% 79.52/11.44  | | |   (152)  $false
% 79.52/11.44  | | | 
% 79.52/11.44  | | | CLOSE: (152) is inconsistent.
% 79.52/11.44  | | | 
% 79.52/11.44  | | End of split
% 79.52/11.44  | | 
% 79.65/11.44  | End of split
% 79.65/11.44  | 
% 79.65/11.44  End of proof
% 79.65/11.44  % SZS output end Proof for theBenchmark
% 79.65/11.44  
% 79.65/11.44  10828ms
%------------------------------------------------------------------------------