↑ Up

Z3---4.15.1.UNS-Prf.s

View TPTP
Problem
Process solution in
SystemOnTSTP
Download .tgz
%------------------------------------------------------------------------------
% File     : Z3---4.15.1
% Problem  : PUZ016-1 : TPTP v9.0.0. Released v1.0.0.
% Transfm  : none
% Format   : tptp
% Command  : run_E %s %d THM

% Computer : n009.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 : Sat Jun 21 05:23:09 AM UTC 2025

% Result   : Unsatisfiable 1.52s 1.72s
% Output   : Proof 1.52s
% Verified : 
% SZS Type : Refutation
%            Derivation depth      :   15
%            Number of leaves      :   46
% Syntax   : Number of formulae    :  134 (  64 unt;   0 typ;   0 def)
%            Number of atoms       :  300 (  61 equ)
%            Maximal formula atoms :    8 (   2 avg)
%            Number of connectives :  302 ( 138   ~; 122   |;   0   &)
%                                         (  42 <=>;   0  =>;   0  <=;   0 <~>)
%            Maximal formula depth :   15 (   5 avg)
%            Maximal term depth    :    3 (   1 avg)
%            Number of FOOLs       :    2 (   2 fml;   0 var)
%            Number of types       :    2 (   0 usr)
%            Number of type conns  :    0 (   0   >;   0   *;   0   +;   0  <<)
%            Number of predicates  :    4 (   2 usr;   1 prp; 0-2 aty)
%            Number of functors    :   15 (  15 usr;  11 con; 0-8 aty)
%            Number of variables   :  424 ( 408   !;   0   ?; 424   :)

% Comments : 
%------------------------------------------------------------------------------
tff(achievable_type,type,
    achievable: ( $i * $i ) > $o ).

tff(squares_type,type,
    squares: ( $i * $i * $i * $i * $i * $i * $i * $i ) > $i ).

tff(not_covered_type,type,
    not_covered: $i ).

tff(row_type,type,
    row: $i > $i ).

tff(n5_type,type,
    n5: $i ).

tff(complement_type,type,
    complement: $i > $i ).

tff(covered_type,type,
    covered: $i ).

tff(successor_type,type,
    successor: $i > $i ).

tff(n4_type,type,
    n4: $i ).

tff(n3_type,type,
    n3: $i ).

tff(n2_type,type,
    n2: $i ).

tff(n1_type,type,
    n1: $i ).

tff(removed_type,type,
    removed: $i ).

tff(n6_type,type,
    n6: $i ).

tff(n7_type,type,
    n7: $i ).

tff(n8_type,type,
    n8: $i ).

tff(1,plain,
    ( ( complement(covered) = not_covered )
  <=> ( complement(covered) = not_covered ) ),
    inference(rewrite,[status(thm)],[]) ).

tff(2,axiom,
    complement(covered) = not_covered,
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',complement_of_covered_is_not_covered) ).

tff(3,plain,
    complement(covered) = not_covered,
    inference(modus_ponens,[status(thm)],[2,1]) ).

tff(4,plain,
    not_covered = complement(covered),
    inference(symmetry,[status(thm)],[3]) ).

tff(5,plain,
    squares(not_covered,not_covered,not_covered,not_covered,not_covered,not_covered,not_covered,not_covered) = squares(complement(covered),complement(covered),complement(covered),complement(covered),complement(covered),complement(covered),complement(covered),complement(covered)),
    inference(monotonicity,[status(thm)],[4,4,4,4,4,4,4,4]) ).

tff(6,plain,
    ( ( successor(n4) = n5 )
  <=> ( successor(n4) = n5 ) ),
    inference(rewrite,[status(thm)],[]) ).

tff(7,axiom,
    successor(n4) = n5,
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',successor_of_4_is_5) ).

tff(8,plain,
    successor(n4) = n5,
    inference(modus_ponens,[status(thm)],[7,6]) ).

tff(9,plain,
    n5 = successor(n4),
    inference(symmetry,[status(thm)],[8]) ).

tff(10,plain,
    row(n5) = row(successor(n4)),
    inference(monotonicity,[status(thm)],[9]) ).

tff(11,plain,
    ( achievable(row(n5),squares(not_covered,not_covered,not_covered,not_covered,not_covered,not_covered,not_covered,not_covered))
  <=> achievable(row(successor(n4)),squares(complement(covered),complement(covered),complement(covered),complement(covered),complement(covered),complement(covered),complement(covered),complement(covered))) ),
    inference(monotonicity,[status(thm)],[10,5]) ).

tff(12,plain,
    ( achievable(row(successor(n4)),squares(complement(covered),complement(covered),complement(covered),complement(covered),complement(covered),complement(covered),complement(covered),complement(covered)))
  <=> achievable(row(n5),squares(not_covered,not_covered,not_covered,not_covered,not_covered,not_covered,not_covered,not_covered)) ),
    inference(symmetry,[status(thm)],[11]) ).

tff(13,plain,
    ( ( complement(not_covered) = covered )
  <=> ( complement(not_covered) = covered ) ),
    inference(rewrite,[status(thm)],[]) ).

tff(14,axiom,
    complement(not_covered) = covered,
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',complement_of_not_covered_is_covered) ).

tff(15,plain,
    complement(not_covered) = covered,
    inference(modus_ponens,[status(thm)],[14,13]) ).

tff(16,plain,
    squares(complement(not_covered),complement(not_covered),complement(not_covered),complement(not_covered),complement(not_covered),complement(not_covered),complement(not_covered),complement(not_covered)) = squares(covered,covered,covered,covered,covered,covered,covered,covered),
    inference(monotonicity,[status(thm)],[15,15,15,15,15,15,15,15]) ).

tff(17,plain,
    squares(covered,covered,covered,covered,covered,covered,covered,covered) = squares(complement(not_covered),complement(not_covered),complement(not_covered),complement(not_covered),complement(not_covered),complement(not_covered),complement(not_covered),complement(not_covered)),
    inference(symmetry,[status(thm)],[16]) ).

tff(18,plain,
    ( ( successor(n3) = n4 )
  <=> ( successor(n3) = n4 ) ),
    inference(rewrite,[status(thm)],[]) ).

tff(19,axiom,
    successor(n3) = n4,
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',successor_of_3_is_4) ).

tff(20,plain,
    successor(n3) = n4,
    inference(modus_ponens,[status(thm)],[19,18]) ).

tff(21,plain,
    n4 = successor(n3),
    inference(symmetry,[status(thm)],[20]) ).

tff(22,plain,
    row(n4) = row(successor(n3)),
    inference(monotonicity,[status(thm)],[21]) ).

tff(23,plain,
    ( achievable(row(n4),squares(covered,covered,covered,covered,covered,covered,covered,covered))
  <=> achievable(row(successor(n3)),squares(complement(not_covered),complement(not_covered),complement(not_covered),complement(not_covered),complement(not_covered),complement(not_covered),complement(not_covered),complement(not_covered))) ),
    inference(monotonicity,[status(thm)],[22,17]) ).

tff(24,plain,
    ( achievable(row(successor(n3)),squares(complement(not_covered),complement(not_covered),complement(not_covered),complement(not_covered),complement(not_covered),complement(not_covered),complement(not_covered),complement(not_covered)))
  <=> achievable(row(n4),squares(covered,covered,covered,covered,covered,covered,covered,covered)) ),
    inference(symmetry,[status(thm)],[23]) ).

tff(25,plain,
    ( ( successor(n2) = n3 )
  <=> ( successor(n2) = n3 ) ),
    inference(rewrite,[status(thm)],[]) ).

tff(26,axiom,
    successor(n2) = n3,
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',successor_of_2_is_3) ).

tff(27,plain,
    successor(n2) = n3,
    inference(modus_ponens,[status(thm)],[26,25]) ).

tff(28,plain,
    n3 = successor(n2),
    inference(symmetry,[status(thm)],[27]) ).

tff(29,plain,
    row(n3) = row(successor(n2)),
    inference(monotonicity,[status(thm)],[28]) ).

tff(30,plain,
    ( achievable(row(n3),squares(not_covered,not_covered,not_covered,not_covered,not_covered,not_covered,not_covered,not_covered))
  <=> achievable(row(successor(n2)),squares(complement(covered),complement(covered),complement(covered),complement(covered),complement(covered),complement(covered),complement(covered),complement(covered))) ),
    inference(monotonicity,[status(thm)],[29,5]) ).

tff(31,plain,
    ( achievable(row(successor(n2)),squares(complement(covered),complement(covered),complement(covered),complement(covered),complement(covered),complement(covered),complement(covered),complement(covered)))
  <=> achievable(row(n3),squares(not_covered,not_covered,not_covered,not_covered,not_covered,not_covered,not_covered,not_covered)) ),
    inference(symmetry,[status(thm)],[30]) ).

tff(32,plain,
    squares(complement(not_covered),complement(covered),complement(covered),complement(not_covered),complement(not_covered),complement(not_covered),complement(not_covered),complement(not_covered)) = squares(covered,not_covered,not_covered,covered,covered,covered,covered,covered),
    inference(monotonicity,[status(thm)],[15,3,3,15,15,15,15,15]) ).

tff(33,plain,
    squares(covered,not_covered,not_covered,covered,covered,covered,covered,covered) = squares(complement(not_covered),complement(covered),complement(covered),complement(not_covered),complement(not_covered),complement(not_covered),complement(not_covered),complement(not_covered)),
    inference(symmetry,[status(thm)],[32]) ).

tff(34,plain,
    ( ( successor(n1) = n2 )
  <=> ( successor(n1) = n2 ) ),
    inference(rewrite,[status(thm)],[]) ).

tff(35,axiom,
    successor(n1) = n2,
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',successor_of_1_is_2) ).

tff(36,plain,
    successor(n1) = n2,
    inference(modus_ponens,[status(thm)],[35,34]) ).

tff(37,plain,
    n2 = successor(n1),
    inference(symmetry,[status(thm)],[36]) ).

tff(38,plain,
    row(n2) = row(successor(n1)),
    inference(monotonicity,[status(thm)],[37]) ).

tff(39,plain,
    ( achievable(row(n2),squares(covered,not_covered,not_covered,covered,covered,covered,covered,covered))
  <=> achievable(row(successor(n1)),squares(complement(not_covered),complement(covered),complement(covered),complement(not_covered),complement(not_covered),complement(not_covered),complement(not_covered),complement(not_covered))) ),
    inference(monotonicity,[status(thm)],[38,33]) ).

tff(40,plain,
    ( achievable(row(successor(n1)),squares(complement(not_covered),complement(covered),complement(covered),complement(not_covered),complement(not_covered),complement(not_covered),complement(not_covered),complement(not_covered)))
  <=> achievable(row(n2),squares(covered,not_covered,not_covered,covered,covered,covered,covered,covered)) ),
    inference(symmetry,[status(thm)],[39]) ).

tff(41,plain,
    ( ( complement(removed) = not_covered )
  <=> ( complement(removed) = not_covered ) ),
    inference(rewrite,[status(thm)],[]) ).

tff(42,axiom,
    complement(removed) = not_covered,
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',complement_of_removed_is_not_covered) ).

tff(43,plain,
    complement(removed) = not_covered,
    inference(modus_ponens,[status(thm)],[42,41]) ).

tff(44,plain,
    squares(complement(not_covered),complement(removed),complement(removed),complement(not_covered),complement(not_covered),complement(not_covered),complement(not_covered),complement(not_covered)) = squares(covered,not_covered,not_covered,covered,covered,covered,covered,covered),
    inference(monotonicity,[status(thm)],[15,43,43,15,15,15,15,15]) ).

tff(45,plain,
    squares(complement(not_covered),complement(removed),complement(removed),complement(not_covered),complement(not_covered),complement(not_covered),complement(not_covered),complement(not_covered)) = squares(complement(not_covered),complement(covered),complement(covered),complement(not_covered),complement(not_covered),complement(not_covered),complement(not_covered),complement(not_covered)),
    inference(transitivity,[status(thm)],[44,33]) ).

tff(46,plain,
    ( achievable(row(successor(n1)),squares(complement(not_covered),complement(removed),complement(removed),complement(not_covered),complement(not_covered),complement(not_covered),complement(not_covered),complement(not_covered)))
  <=> achievable(row(successor(n1)),squares(complement(not_covered),complement(covered),complement(covered),complement(not_covered),complement(not_covered),complement(not_covered),complement(not_covered),complement(not_covered))) ),
    inference(monotonicity,[status(thm)],[45]) ).

tff(47,plain,
    ( achievable(row(n1),squares(not_covered,removed,removed,not_covered,not_covered,not_covered,not_covered,not_covered))
  <=> achievable(row(n1),squares(not_covered,removed,removed,not_covered,not_covered,not_covered,not_covered,not_covered)) ),
    inference(rewrite,[status(thm)],[]) ).

tff(48,axiom,
    achievable(row(n1),squares(not_covered,removed,removed,not_covered,not_covered,not_covered,not_covered,not_covered)),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',first_row_initially) ).

tff(49,plain,
    achievable(row(n1),squares(not_covered,removed,removed,not_covered,not_covered,not_covered,not_covered,not_covered)),
    inference(modus_ponens,[status(thm)],[48,47]) ).

tff(50,plain,
    ^ [Y4: $i,Y8: $i,Y2: $i,Y1: $i,Y5: $i,Y3: $i,Y7: $i,X: $i,Y6: $i] :
      refl(( ( ~ achievable(row(X),squares(Y1,Y2,Y3,Y4,Y5,Y6,Y7,Y8))
          | achievable(row(successor(X)),squares(complement(Y1),complement(Y2),complement(Y3),complement(Y4),complement(Y5),complement(Y6),complement(Y7),complement(Y8))) )
      <=> ( ~ achievable(row(X),squares(Y1,Y2,Y3,Y4,Y5,Y6,Y7,Y8))
          | achievable(row(successor(X)),squares(complement(Y1),complement(Y2),complement(Y3),complement(Y4),complement(Y5),complement(Y6),complement(Y7),complement(Y8))) ) )),
    inference(bind,[status(th)],[]) ).

tff(51,plain,
    ( ! [Y4: $i,Y8: $i,Y2: $i,Y1: $i,Y5: $i,Y3: $i,Y7: $i,X: $i,Y6: $i] :
        ( ~ achievable(row(X),squares(Y1,Y2,Y3,Y4,Y5,Y6,Y7,Y8))
        | achievable(row(successor(X)),squares(complement(Y1),complement(Y2),complement(Y3),complement(Y4),complement(Y5),complement(Y6),complement(Y7),complement(Y8))) )
  <=> ! [Y4: $i,Y8: $i,Y2: $i,Y1: $i,Y5: $i,Y3: $i,Y7: $i,X: $i,Y6: $i] :
        ( ~ achievable(row(X),squares(Y1,Y2,Y3,Y4,Y5,Y6,Y7,Y8))
        | achievable(row(successor(X)),squares(complement(Y1),complement(Y2),complement(Y3),complement(Y4),complement(Y5),complement(Y6),complement(Y7),complement(Y8))) ) ),
    inference(quant_intro,[status(thm)],[50]) ).

tff(52,plain,
    ( ! [Y4: $i,Y8: $i,Y2: $i,Y1: $i,Y5: $i,Y3: $i,Y7: $i,X: $i,Y6: $i] :
        ( ~ achievable(row(X),squares(Y1,Y2,Y3,Y4,Y5,Y6,Y7,Y8))
        | achievable(row(successor(X)),squares(complement(Y1),complement(Y2),complement(Y3),complement(Y4),complement(Y5),complement(Y6),complement(Y7),complement(Y8))) )
  <=> ! [Y4: $i,Y8: $i,Y2: $i,Y1: $i,Y5: $i,Y3: $i,Y7: $i,X: $i,Y6: $i] :
        ( ~ achievable(row(X),squares(Y1,Y2,Y3,Y4,Y5,Y6,Y7,Y8))
        | achievable(row(successor(X)),squares(complement(Y1),complement(Y2),complement(Y3),complement(Y4),complement(Y5),complement(Y6),complement(Y7),complement(Y8))) ) ),
    inference(rewrite,[status(thm)],[]) ).

tff(53,axiom,
    ! [Y4: $i,Y8: $i,Y2: $i,Y1: $i,Y5: $i,Y3: $i,Y7: $i,X: $i,Y6: $i] :
      ( ~ achievable(row(X),squares(Y1,Y2,Y3,Y4,Y5,Y6,Y7,Y8))
      | achievable(row(successor(X)),squares(complement(Y1),complement(Y2),complement(Y3),complement(Y4),complement(Y5),complement(Y6),complement(Y7),complement(Y8))) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',place_vertical_pieces) ).

tff(54,plain,
    ! [Y4: $i,Y8: $i,Y2: $i,Y1: $i,Y5: $i,Y3: $i,Y7: $i,X: $i,Y6: $i] :
      ( ~ achievable(row(X),squares(Y1,Y2,Y3,Y4,Y5,Y6,Y7,Y8))
      | achievable(row(successor(X)),squares(complement(Y1),complement(Y2),complement(Y3),complement(Y4),complement(Y5),complement(Y6),complement(Y7),complement(Y8))) ),
    inference(modus_ponens,[status(thm)],[53,52]) ).

tff(55,plain,
    ! [Y4: $i,Y8: $i,Y2: $i,Y1: $i,Y5: $i,Y3: $i,Y7: $i,X: $i,Y6: $i] :
      ( ~ achievable(row(X),squares(Y1,Y2,Y3,Y4,Y5,Y6,Y7,Y8))
      | achievable(row(successor(X)),squares(complement(Y1),complement(Y2),complement(Y3),complement(Y4),complement(Y5),complement(Y6),complement(Y7),complement(Y8))) ),
    inference(skolemize,[status(sab)],[54]) ).

tff(56,plain,
    ! [Y4: $i,Y8: $i,Y2: $i,Y1: $i,Y5: $i,Y3: $i,Y7: $i,X: $i,Y6: $i] :
      ( ~ achievable(row(X),squares(Y1,Y2,Y3,Y4,Y5,Y6,Y7,Y8))
      | achievable(row(successor(X)),squares(complement(Y1),complement(Y2),complement(Y3),complement(Y4),complement(Y5),complement(Y6),complement(Y7),complement(Y8))) ),
    inference(modus_ponens,[status(thm)],[55,51]) ).

tff(57,plain,
    ( ( ~ ! [Y4: $i,Y8: $i,Y2: $i,Y1: $i,Y5: $i,Y3: $i,Y7: $i,X: $i,Y6: $i] :
            ( ~ achievable(row(X),squares(Y1,Y2,Y3,Y4,Y5,Y6,Y7,Y8))
            | achievable(row(successor(X)),squares(complement(Y1),complement(Y2),complement(Y3),complement(Y4),complement(Y5),complement(Y6),complement(Y7),complement(Y8))) )
      | ~ achievable(row(n1),squares(not_covered,removed,removed,not_covered,not_covered,not_covered,not_covered,not_covered))
      | achievable(row(successor(n1)),squares(complement(not_covered),complement(removed),complement(removed),complement(not_covered),complement(not_covered),complement(not_covered),complement(not_covered),complement(not_covered))) )
  <=> ( ~ ! [Y4: $i,Y8: $i,Y2: $i,Y1: $i,Y5: $i,Y3: $i,Y7: $i,X: $i,Y6: $i] :
            ( ~ achievable(row(X),squares(Y1,Y2,Y3,Y4,Y5,Y6,Y7,Y8))
            | achievable(row(successor(X)),squares(complement(Y1),complement(Y2),complement(Y3),complement(Y4),complement(Y5),complement(Y6),complement(Y7),complement(Y8))) )
      | ~ achievable(row(n1),squares(not_covered,removed,removed,not_covered,not_covered,not_covered,not_covered,not_covered))
      | achievable(row(successor(n1)),squares(complement(not_covered),complement(removed),complement(removed),complement(not_covered),complement(not_covered),complement(not_covered),complement(not_covered),complement(not_covered))) ) ),
    inference(rewrite,[status(thm)],[]) ).

tff(58,plain,
    ( ~ ! [Y4: $i,Y8: $i,Y2: $i,Y1: $i,Y5: $i,Y3: $i,Y7: $i,X: $i,Y6: $i] :
          ( ~ achievable(row(X),squares(Y1,Y2,Y3,Y4,Y5,Y6,Y7,Y8))
          | achievable(row(successor(X)),squares(complement(Y1),complement(Y2),complement(Y3),complement(Y4),complement(Y5),complement(Y6),complement(Y7),complement(Y8))) )
    | ~ achievable(row(n1),squares(not_covered,removed,removed,not_covered,not_covered,not_covered,not_covered,not_covered))
    | achievable(row(successor(n1)),squares(complement(not_covered),complement(removed),complement(removed),complement(not_covered),complement(not_covered),complement(not_covered),complement(not_covered),complement(not_covered))) ),
    inference(quant_inst,[status(thm)],[]) ).

tff(59,plain,
    ( ~ ! [Y4: $i,Y8: $i,Y2: $i,Y1: $i,Y5: $i,Y3: $i,Y7: $i,X: $i,Y6: $i] :
          ( ~ achievable(row(X),squares(Y1,Y2,Y3,Y4,Y5,Y6,Y7,Y8))
          | achievable(row(successor(X)),squares(complement(Y1),complement(Y2),complement(Y3),complement(Y4),complement(Y5),complement(Y6),complement(Y7),complement(Y8))) )
    | ~ achievable(row(n1),squares(not_covered,removed,removed,not_covered,not_covered,not_covered,not_covered,not_covered))
    | achievable(row(successor(n1)),squares(complement(not_covered),complement(removed),complement(removed),complement(not_covered),complement(not_covered),complement(not_covered),complement(not_covered),complement(not_covered))) ),
    inference(modus_ponens,[status(thm)],[58,57]) ).

tff(60,plain,
    achievable(row(successor(n1)),squares(complement(not_covered),complement(removed),complement(removed),complement(not_covered),complement(not_covered),complement(not_covered),complement(not_covered),complement(not_covered))),
    inference(unit_resolution,[status(thm)],[59,56,49]) ).

tff(61,plain,
    achievable(row(successor(n1)),squares(complement(not_covered),complement(covered),complement(covered),complement(not_covered),complement(not_covered),complement(not_covered),complement(not_covered),complement(not_covered))),
    inference(modus_ponens,[status(thm)],[60,46]) ).

tff(62,plain,
    achievable(row(n2),squares(covered,not_covered,not_covered,covered,covered,covered,covered,covered)),
    inference(modus_ponens,[status(thm)],[61,40]) ).

tff(63,plain,
    ^ [Y4: $i,Y8: $i,Y1: $i,Y5: $i,Y7: $i,X: $i,Y6: $i] :
      refl(( ( ~ achievable(row(X),squares(Y1,not_covered,not_covered,Y4,Y5,Y6,Y7,Y8))
          | achievable(row(X),squares(Y1,covered,covered,Y4,Y5,Y6,Y7,Y8)) )
      <=> ( ~ achievable(row(X),squares(Y1,not_covered,not_covered,Y4,Y5,Y6,Y7,Y8))
          | achievable(row(X),squares(Y1,covered,covered,Y4,Y5,Y6,Y7,Y8)) ) )),
    inference(bind,[status(th)],[]) ).

tff(64,plain,
    ( ! [Y4: $i,Y8: $i,Y1: $i,Y5: $i,Y7: $i,X: $i,Y6: $i] :
        ( ~ achievable(row(X),squares(Y1,not_covered,not_covered,Y4,Y5,Y6,Y7,Y8))
        | achievable(row(X),squares(Y1,covered,covered,Y4,Y5,Y6,Y7,Y8)) )
  <=> ! [Y4: $i,Y8: $i,Y1: $i,Y5: $i,Y7: $i,X: $i,Y6: $i] :
        ( ~ achievable(row(X),squares(Y1,not_covered,not_covered,Y4,Y5,Y6,Y7,Y8))
        | achievable(row(X),squares(Y1,covered,covered,Y4,Y5,Y6,Y7,Y8)) ) ),
    inference(quant_intro,[status(thm)],[63]) ).

tff(65,plain,
    ( ! [Y4: $i,Y8: $i,Y1: $i,Y5: $i,Y7: $i,X: $i,Y6: $i] :
        ( ~ achievable(row(X),squares(Y1,not_covered,not_covered,Y4,Y5,Y6,Y7,Y8))
        | achievable(row(X),squares(Y1,covered,covered,Y4,Y5,Y6,Y7,Y8)) )
  <=> ! [Y4: $i,Y8: $i,Y1: $i,Y5: $i,Y7: $i,X: $i,Y6: $i] :
        ( ~ achievable(row(X),squares(Y1,not_covered,not_covered,Y4,Y5,Y6,Y7,Y8))
        | achievable(row(X),squares(Y1,covered,covered,Y4,Y5,Y6,Y7,Y8)) ) ),
    inference(rewrite,[status(thm)],[]) ).

tff(66,axiom,
    ! [Y4: $i,Y8: $i,Y1: $i,Y5: $i,Y7: $i,X: $i,Y6: $i] :
      ( ~ achievable(row(X),squares(Y1,not_covered,not_covered,Y4,Y5,Y6,Y7,Y8))
      | achievable(row(X),squares(Y1,covered,covered,Y4,Y5,Y6,Y7,Y8)) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',cover_columns_2_and_3) ).

tff(67,plain,
    ! [Y4: $i,Y8: $i,Y1: $i,Y5: $i,Y7: $i,X: $i,Y6: $i] :
      ( ~ achievable(row(X),squares(Y1,not_covered,not_covered,Y4,Y5,Y6,Y7,Y8))
      | achievable(row(X),squares(Y1,covered,covered,Y4,Y5,Y6,Y7,Y8)) ),
    inference(modus_ponens,[status(thm)],[66,65]) ).

tff(68,plain,
    ! [Y4: $i,Y8: $i,Y1: $i,Y5: $i,Y7: $i,X: $i,Y6: $i] :
      ( ~ achievable(row(X),squares(Y1,not_covered,not_covered,Y4,Y5,Y6,Y7,Y8))
      | achievable(row(X),squares(Y1,covered,covered,Y4,Y5,Y6,Y7,Y8)) ),
    inference(skolemize,[status(sab)],[67]) ).

tff(69,plain,
    ! [Y4: $i,Y8: $i,Y1: $i,Y5: $i,Y7: $i,X: $i,Y6: $i] :
      ( ~ achievable(row(X),squares(Y1,not_covered,not_covered,Y4,Y5,Y6,Y7,Y8))
      | achievable(row(X),squares(Y1,covered,covered,Y4,Y5,Y6,Y7,Y8)) ),
    inference(modus_ponens,[status(thm)],[68,64]) ).

tff(70,plain,
    ( ( ~ ! [Y4: $i,Y8: $i,Y1: $i,Y5: $i,Y7: $i,X: $i,Y6: $i] :
            ( ~ achievable(row(X),squares(Y1,not_covered,not_covered,Y4,Y5,Y6,Y7,Y8))
            | achievable(row(X),squares(Y1,covered,covered,Y4,Y5,Y6,Y7,Y8)) )
      | ~ achievable(row(n2),squares(covered,not_covered,not_covered,covered,covered,covered,covered,covered))
      | achievable(row(n2),squares(covered,covered,covered,covered,covered,covered,covered,covered)) )
  <=> ( ~ ! [Y4: $i,Y8: $i,Y1: $i,Y5: $i,Y7: $i,X: $i,Y6: $i] :
            ( ~ achievable(row(X),squares(Y1,not_covered,not_covered,Y4,Y5,Y6,Y7,Y8))
            | achievable(row(X),squares(Y1,covered,covered,Y4,Y5,Y6,Y7,Y8)) )
      | ~ achievable(row(n2),squares(covered,not_covered,not_covered,covered,covered,covered,covered,covered))
      | achievable(row(n2),squares(covered,covered,covered,covered,covered,covered,covered,covered)) ) ),
    inference(rewrite,[status(thm)],[]) ).

tff(71,plain,
    ( ~ ! [Y4: $i,Y8: $i,Y1: $i,Y5: $i,Y7: $i,X: $i,Y6: $i] :
          ( ~ achievable(row(X),squares(Y1,not_covered,not_covered,Y4,Y5,Y6,Y7,Y8))
          | achievable(row(X),squares(Y1,covered,covered,Y4,Y5,Y6,Y7,Y8)) )
    | ~ achievable(row(n2),squares(covered,not_covered,not_covered,covered,covered,covered,covered,covered))
    | achievable(row(n2),squares(covered,covered,covered,covered,covered,covered,covered,covered)) ),
    inference(quant_inst,[status(thm)],[]) ).

tff(72,plain,
    ( ~ ! [Y4: $i,Y8: $i,Y1: $i,Y5: $i,Y7: $i,X: $i,Y6: $i] :
          ( ~ achievable(row(X),squares(Y1,not_covered,not_covered,Y4,Y5,Y6,Y7,Y8))
          | achievable(row(X),squares(Y1,covered,covered,Y4,Y5,Y6,Y7,Y8)) )
    | ~ achievable(row(n2),squares(covered,not_covered,not_covered,covered,covered,covered,covered,covered))
    | achievable(row(n2),squares(covered,covered,covered,covered,covered,covered,covered,covered)) ),
    inference(modus_ponens,[status(thm)],[71,70]) ).

tff(73,plain,
    achievable(row(n2),squares(covered,covered,covered,covered,covered,covered,covered,covered)),
    inference(unit_resolution,[status(thm)],[72,69,62]) ).

tff(74,plain,
    ( ( ~ ! [Y4: $i,Y8: $i,Y2: $i,Y1: $i,Y5: $i,Y3: $i,Y7: $i,X: $i,Y6: $i] :
            ( ~ achievable(row(X),squares(Y1,Y2,Y3,Y4,Y5,Y6,Y7,Y8))
            | achievable(row(successor(X)),squares(complement(Y1),complement(Y2),complement(Y3),complement(Y4),complement(Y5),complement(Y6),complement(Y7),complement(Y8))) )
      | ~ achievable(row(n2),squares(covered,covered,covered,covered,covered,covered,covered,covered))
      | achievable(row(successor(n2)),squares(complement(covered),complement(covered),complement(covered),complement(covered),complement(covered),complement(covered),complement(covered),complement(covered))) )
  <=> ( ~ ! [Y4: $i,Y8: $i,Y2: $i,Y1: $i,Y5: $i,Y3: $i,Y7: $i,X: $i,Y6: $i] :
            ( ~ achievable(row(X),squares(Y1,Y2,Y3,Y4,Y5,Y6,Y7,Y8))
            | achievable(row(successor(X)),squares(complement(Y1),complement(Y2),complement(Y3),complement(Y4),complement(Y5),complement(Y6),complement(Y7),complement(Y8))) )
      | ~ achievable(row(n2),squares(covered,covered,covered,covered,covered,covered,covered,covered))
      | achievable(row(successor(n2)),squares(complement(covered),complement(covered),complement(covered),complement(covered),complement(covered),complement(covered),complement(covered),complement(covered))) ) ),
    inference(rewrite,[status(thm)],[]) ).

tff(75,plain,
    ( ~ ! [Y4: $i,Y8: $i,Y2: $i,Y1: $i,Y5: $i,Y3: $i,Y7: $i,X: $i,Y6: $i] :
          ( ~ achievable(row(X),squares(Y1,Y2,Y3,Y4,Y5,Y6,Y7,Y8))
          | achievable(row(successor(X)),squares(complement(Y1),complement(Y2),complement(Y3),complement(Y4),complement(Y5),complement(Y6),complement(Y7),complement(Y8))) )
    | ~ achievable(row(n2),squares(covered,covered,covered,covered,covered,covered,covered,covered))
    | achievable(row(successor(n2)),squares(complement(covered),complement(covered),complement(covered),complement(covered),complement(covered),complement(covered),complement(covered),complement(covered))) ),
    inference(quant_inst,[status(thm)],[]) ).

tff(76,plain,
    ( ~ ! [Y4: $i,Y8: $i,Y2: $i,Y1: $i,Y5: $i,Y3: $i,Y7: $i,X: $i,Y6: $i] :
          ( ~ achievable(row(X),squares(Y1,Y2,Y3,Y4,Y5,Y6,Y7,Y8))
          | achievable(row(successor(X)),squares(complement(Y1),complement(Y2),complement(Y3),complement(Y4),complement(Y5),complement(Y6),complement(Y7),complement(Y8))) )
    | ~ achievable(row(n2),squares(covered,covered,covered,covered,covered,covered,covered,covered))
    | achievable(row(successor(n2)),squares(complement(covered),complement(covered),complement(covered),complement(covered),complement(covered),complement(covered),complement(covered),complement(covered))) ),
    inference(modus_ponens,[status(thm)],[75,74]) ).

tff(77,plain,
    ( ~ achievable(row(n2),squares(covered,covered,covered,covered,covered,covered,covered,covered))
    | achievable(row(successor(n2)),squares(complement(covered),complement(covered),complement(covered),complement(covered),complement(covered),complement(covered),complement(covered),complement(covered))) ),
    inference(unit_resolution,[status(thm)],[76,56]) ).

tff(78,plain,
    achievable(row(successor(n2)),squares(complement(covered),complement(covered),complement(covered),complement(covered),complement(covered),complement(covered),complement(covered),complement(covered))),
    inference(unit_resolution,[status(thm)],[77,73]) ).

tff(79,plain,
    achievable(row(n3),squares(not_covered,not_covered,not_covered,not_covered,not_covered,not_covered,not_covered,not_covered)),
    inference(modus_ponens,[status(thm)],[78,31]) ).

tff(80,plain,
    ( ( ~ ! [Y4: $i,Y8: $i,Y2: $i,Y1: $i,Y5: $i,Y3: $i,Y7: $i,X: $i,Y6: $i] :
            ( ~ achievable(row(X),squares(Y1,Y2,Y3,Y4,Y5,Y6,Y7,Y8))
            | achievable(row(successor(X)),squares(complement(Y1),complement(Y2),complement(Y3),complement(Y4),complement(Y5),complement(Y6),complement(Y7),complement(Y8))) )
      | ~ achievable(row(n3),squares(not_covered,not_covered,not_covered,not_covered,not_covered,not_covered,not_covered,not_covered))
      | achievable(row(successor(n3)),squares(complement(not_covered),complement(not_covered),complement(not_covered),complement(not_covered),complement(not_covered),complement(not_covered),complement(not_covered),complement(not_covered))) )
  <=> ( ~ ! [Y4: $i,Y8: $i,Y2: $i,Y1: $i,Y5: $i,Y3: $i,Y7: $i,X: $i,Y6: $i] :
            ( ~ achievable(row(X),squares(Y1,Y2,Y3,Y4,Y5,Y6,Y7,Y8))
            | achievable(row(successor(X)),squares(complement(Y1),complement(Y2),complement(Y3),complement(Y4),complement(Y5),complement(Y6),complement(Y7),complement(Y8))) )
      | ~ achievable(row(n3),squares(not_covered,not_covered,not_covered,not_covered,not_covered,not_covered,not_covered,not_covered))
      | achievable(row(successor(n3)),squares(complement(not_covered),complement(not_covered),complement(not_covered),complement(not_covered),complement(not_covered),complement(not_covered),complement(not_covered),complement(not_covered))) ) ),
    inference(rewrite,[status(thm)],[]) ).

tff(81,plain,
    ( ~ ! [Y4: $i,Y8: $i,Y2: $i,Y1: $i,Y5: $i,Y3: $i,Y7: $i,X: $i,Y6: $i] :
          ( ~ achievable(row(X),squares(Y1,Y2,Y3,Y4,Y5,Y6,Y7,Y8))
          | achievable(row(successor(X)),squares(complement(Y1),complement(Y2),complement(Y3),complement(Y4),complement(Y5),complement(Y6),complement(Y7),complement(Y8))) )
    | ~ achievable(row(n3),squares(not_covered,not_covered,not_covered,not_covered,not_covered,not_covered,not_covered,not_covered))
    | achievable(row(successor(n3)),squares(complement(not_covered),complement(not_covered),complement(not_covered),complement(not_covered),complement(not_covered),complement(not_covered),complement(not_covered),complement(not_covered))) ),
    inference(quant_inst,[status(thm)],[]) ).

tff(82,plain,
    ( ~ ! [Y4: $i,Y8: $i,Y2: $i,Y1: $i,Y5: $i,Y3: $i,Y7: $i,X: $i,Y6: $i] :
          ( ~ achievable(row(X),squares(Y1,Y2,Y3,Y4,Y5,Y6,Y7,Y8))
          | achievable(row(successor(X)),squares(complement(Y1),complement(Y2),complement(Y3),complement(Y4),complement(Y5),complement(Y6),complement(Y7),complement(Y8))) )
    | ~ achievable(row(n3),squares(not_covered,not_covered,not_covered,not_covered,not_covered,not_covered,not_covered,not_covered))
    | achievable(row(successor(n3)),squares(complement(not_covered),complement(not_covered),complement(not_covered),complement(not_covered),complement(not_covered),complement(not_covered),complement(not_covered),complement(not_covered))) ),
    inference(modus_ponens,[status(thm)],[81,80]) ).

tff(83,plain,
    ( ~ achievable(row(n3),squares(not_covered,not_covered,not_covered,not_covered,not_covered,not_covered,not_covered,not_covered))
    | achievable(row(successor(n3)),squares(complement(not_covered),complement(not_covered),complement(not_covered),complement(not_covered),complement(not_covered),complement(not_covered),complement(not_covered),complement(not_covered))) ),
    inference(unit_resolution,[status(thm)],[82,56]) ).

tff(84,plain,
    achievable(row(successor(n3)),squares(complement(not_covered),complement(not_covered),complement(not_covered),complement(not_covered),complement(not_covered),complement(not_covered),complement(not_covered),complement(not_covered))),
    inference(unit_resolution,[status(thm)],[83,79]) ).

tff(85,plain,
    achievable(row(n4),squares(covered,covered,covered,covered,covered,covered,covered,covered)),
    inference(modus_ponens,[status(thm)],[84,24]) ).

tff(86,plain,
    ( ( ~ ! [Y4: $i,Y8: $i,Y2: $i,Y1: $i,Y5: $i,Y3: $i,Y7: $i,X: $i,Y6: $i] :
            ( ~ achievable(row(X),squares(Y1,Y2,Y3,Y4,Y5,Y6,Y7,Y8))
            | achievable(row(successor(X)),squares(complement(Y1),complement(Y2),complement(Y3),complement(Y4),complement(Y5),complement(Y6),complement(Y7),complement(Y8))) )
      | ~ achievable(row(n4),squares(covered,covered,covered,covered,covered,covered,covered,covered))
      | achievable(row(successor(n4)),squares(complement(covered),complement(covered),complement(covered),complement(covered),complement(covered),complement(covered),complement(covered),complement(covered))) )
  <=> ( ~ ! [Y4: $i,Y8: $i,Y2: $i,Y1: $i,Y5: $i,Y3: $i,Y7: $i,X: $i,Y6: $i] :
            ( ~ achievable(row(X),squares(Y1,Y2,Y3,Y4,Y5,Y6,Y7,Y8))
            | achievable(row(successor(X)),squares(complement(Y1),complement(Y2),complement(Y3),complement(Y4),complement(Y5),complement(Y6),complement(Y7),complement(Y8))) )
      | ~ achievable(row(n4),squares(covered,covered,covered,covered,covered,covered,covered,covered))
      | achievable(row(successor(n4)),squares(complement(covered),complement(covered),complement(covered),complement(covered),complement(covered),complement(covered),complement(covered),complement(covered))) ) ),
    inference(rewrite,[status(thm)],[]) ).

tff(87,plain,
    ( ~ ! [Y4: $i,Y8: $i,Y2: $i,Y1: $i,Y5: $i,Y3: $i,Y7: $i,X: $i,Y6: $i] :
          ( ~ achievable(row(X),squares(Y1,Y2,Y3,Y4,Y5,Y6,Y7,Y8))
          | achievable(row(successor(X)),squares(complement(Y1),complement(Y2),complement(Y3),complement(Y4),complement(Y5),complement(Y6),complement(Y7),complement(Y8))) )
    | ~ achievable(row(n4),squares(covered,covered,covered,covered,covered,covered,covered,covered))
    | achievable(row(successor(n4)),squares(complement(covered),complement(covered),complement(covered),complement(covered),complement(covered),complement(covered),complement(covered),complement(covered))) ),
    inference(quant_inst,[status(thm)],[]) ).

tff(88,plain,
    ( ~ ! [Y4: $i,Y8: $i,Y2: $i,Y1: $i,Y5: $i,Y3: $i,Y7: $i,X: $i,Y6: $i] :
          ( ~ achievable(row(X),squares(Y1,Y2,Y3,Y4,Y5,Y6,Y7,Y8))
          | achievable(row(successor(X)),squares(complement(Y1),complement(Y2),complement(Y3),complement(Y4),complement(Y5),complement(Y6),complement(Y7),complement(Y8))) )
    | ~ achievable(row(n4),squares(covered,covered,covered,covered,covered,covered,covered,covered))
    | achievable(row(successor(n4)),squares(complement(covered),complement(covered),complement(covered),complement(covered),complement(covered),complement(covered),complement(covered),complement(covered))) ),
    inference(modus_ponens,[status(thm)],[87,86]) ).

tff(89,plain,
    ( ~ achievable(row(n4),squares(covered,covered,covered,covered,covered,covered,covered,covered))
    | achievable(row(successor(n4)),squares(complement(covered),complement(covered),complement(covered),complement(covered),complement(covered),complement(covered),complement(covered),complement(covered))) ),
    inference(unit_resolution,[status(thm)],[88,56]) ).

tff(90,plain,
    achievable(row(successor(n4)),squares(complement(covered),complement(covered),complement(covered),complement(covered),complement(covered),complement(covered),complement(covered),complement(covered))),
    inference(unit_resolution,[status(thm)],[89,85]) ).

tff(91,plain,
    achievable(row(n5),squares(not_covered,not_covered,not_covered,not_covered,not_covered,not_covered,not_covered,not_covered)),
    inference(modus_ponens,[status(thm)],[90,12]) ).

tff(92,plain,
    ( ( successor(n5) = n6 )
  <=> ( successor(n5) = n6 ) ),
    inference(rewrite,[status(thm)],[]) ).

tff(93,axiom,
    successor(n5) = n6,
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',successor_of_5_is_6) ).

tff(94,plain,
    successor(n5) = n6,
    inference(modus_ponens,[status(thm)],[93,92]) ).

tff(95,plain,
    n6 = successor(n5),
    inference(symmetry,[status(thm)],[94]) ).

tff(96,plain,
    row(n6) = row(successor(n5)),
    inference(monotonicity,[status(thm)],[95]) ).

tff(97,plain,
    ( achievable(row(n6),squares(covered,covered,covered,covered,covered,covered,covered,covered))
  <=> achievable(row(successor(n5)),squares(complement(not_covered),complement(not_covered),complement(not_covered),complement(not_covered),complement(not_covered),complement(not_covered),complement(not_covered),complement(not_covered))) ),
    inference(monotonicity,[status(thm)],[96,17]) ).

tff(98,plain,
    ( ~ achievable(row(n6),squares(covered,covered,covered,covered,covered,covered,covered,covered))
  <=> ~ achievable(row(successor(n5)),squares(complement(not_covered),complement(not_covered),complement(not_covered),complement(not_covered),complement(not_covered),complement(not_covered),complement(not_covered),complement(not_covered))) ),
    inference(monotonicity,[status(thm)],[97]) ).

tff(99,plain,
    ( ( successor(n6) = n7 )
  <=> ( successor(n6) = n7 ) ),
    inference(rewrite,[status(thm)],[]) ).

tff(100,axiom,
    successor(n6) = n7,
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',successor_of_6_is_7) ).

tff(101,plain,
    successor(n6) = n7,
    inference(modus_ponens,[status(thm)],[100,99]) ).

tff(102,plain,
    n7 = successor(n6),
    inference(symmetry,[status(thm)],[101]) ).

tff(103,plain,
    row(n7) = row(successor(n6)),
    inference(monotonicity,[status(thm)],[102]) ).

tff(104,plain,
    ( achievable(row(n7),squares(not_covered,not_covered,not_covered,not_covered,not_covered,not_covered,not_covered,not_covered))
  <=> achievable(row(successor(n6)),squares(complement(covered),complement(covered),complement(covered),complement(covered),complement(covered),complement(covered),complement(covered),complement(covered))) ),
    inference(monotonicity,[status(thm)],[103,5]) ).

tff(105,plain,
    ( ~ achievable(row(n7),squares(not_covered,not_covered,not_covered,not_covered,not_covered,not_covered,not_covered,not_covered))
  <=> ~ achievable(row(successor(n6)),squares(complement(covered),complement(covered),complement(covered),complement(covered),complement(covered),complement(covered),complement(covered),complement(covered))) ),
    inference(monotonicity,[status(thm)],[104]) ).

tff(106,plain,
    ( ( successor(n7) = n8 )
  <=> ( successor(n7) = n8 ) ),
    inference(rewrite,[status(thm)],[]) ).

tff(107,axiom,
    successor(n7) = n8,
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',successor_of_7_is_8) ).

tff(108,plain,
    successor(n7) = n8,
    inference(modus_ponens,[status(thm)],[107,106]) ).

tff(109,plain,
    row(successor(n7)) = row(n8),
    inference(monotonicity,[status(thm)],[108]) ).

tff(110,plain,
    ( achievable(row(successor(n7)),squares(complement(not_covered),complement(not_covered),complement(not_covered),complement(not_covered),complement(not_covered),complement(not_covered),complement(not_covered),complement(not_covered)))
  <=> achievable(row(n8),squares(covered,covered,covered,covered,covered,covered,covered,covered)) ),
    inference(monotonicity,[status(thm)],[109,16]) ).

tff(111,plain,
    ( achievable(row(n8),squares(covered,covered,covered,covered,covered,covered,covered,covered))
  <=> achievable(row(successor(n7)),squares(complement(not_covered),complement(not_covered),complement(not_covered),complement(not_covered),complement(not_covered),complement(not_covered),complement(not_covered),complement(not_covered))) ),
    inference(symmetry,[status(thm)],[110]) ).

tff(112,plain,
    ( ~ achievable(row(n8),squares(covered,covered,covered,covered,covered,covered,covered,covered))
  <=> ~ achievable(row(successor(n7)),squares(complement(not_covered),complement(not_covered),complement(not_covered),complement(not_covered),complement(not_covered),complement(not_covered),complement(not_covered),complement(not_covered))) ),
    inference(monotonicity,[status(thm)],[111]) ).

tff(113,plain,
    ( ~ achievable(row(n8),squares(covered,covered,covered,covered,covered,covered,covered,covered))
  <=> ~ achievable(row(n8),squares(covered,covered,covered,covered,covered,covered,covered,covered)) ),
    inference(rewrite,[status(thm)],[]) ).

tff(114,axiom,
    ~ achievable(row(n8),squares(covered,covered,covered,covered,covered,covered,covered,covered)),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',prove_row_8_can_be_covered) ).

tff(115,plain,
    ~ achievable(row(n8),squares(covered,covered,covered,covered,covered,covered,covered,covered)),
    inference(modus_ponens,[status(thm)],[114,113]) ).

tff(116,plain,
    ~ achievable(row(successor(n7)),squares(complement(not_covered),complement(not_covered),complement(not_covered),complement(not_covered),complement(not_covered),complement(not_covered),complement(not_covered),complement(not_covered))),
    inference(modus_ponens,[status(thm)],[115,112]) ).

tff(117,plain,
    ( ( ~ ! [Y4: $i,Y8: $i,Y2: $i,Y1: $i,Y5: $i,Y3: $i,Y7: $i,X: $i,Y6: $i] :
            ( ~ achievable(row(X),squares(Y1,Y2,Y3,Y4,Y5,Y6,Y7,Y8))
            | achievable(row(successor(X)),squares(complement(Y1),complement(Y2),complement(Y3),complement(Y4),complement(Y5),complement(Y6),complement(Y7),complement(Y8))) )
      | ~ achievable(row(n7),squares(not_covered,not_covered,not_covered,not_covered,not_covered,not_covered,not_covered,not_covered))
      | achievable(row(successor(n7)),squares(complement(not_covered),complement(not_covered),complement(not_covered),complement(not_covered),complement(not_covered),complement(not_covered),complement(not_covered),complement(not_covered))) )
  <=> ( ~ ! [Y4: $i,Y8: $i,Y2: $i,Y1: $i,Y5: $i,Y3: $i,Y7: $i,X: $i,Y6: $i] :
            ( ~ achievable(row(X),squares(Y1,Y2,Y3,Y4,Y5,Y6,Y7,Y8))
            | achievable(row(successor(X)),squares(complement(Y1),complement(Y2),complement(Y3),complement(Y4),complement(Y5),complement(Y6),complement(Y7),complement(Y8))) )
      | ~ achievable(row(n7),squares(not_covered,not_covered,not_covered,not_covered,not_covered,not_covered,not_covered,not_covered))
      | achievable(row(successor(n7)),squares(complement(not_covered),complement(not_covered),complement(not_covered),complement(not_covered),complement(not_covered),complement(not_covered),complement(not_covered),complement(not_covered))) ) ),
    inference(rewrite,[status(thm)],[]) ).

tff(118,plain,
    ( ~ ! [Y4: $i,Y8: $i,Y2: $i,Y1: $i,Y5: $i,Y3: $i,Y7: $i,X: $i,Y6: $i] :
          ( ~ achievable(row(X),squares(Y1,Y2,Y3,Y4,Y5,Y6,Y7,Y8))
          | achievable(row(successor(X)),squares(complement(Y1),complement(Y2),complement(Y3),complement(Y4),complement(Y5),complement(Y6),complement(Y7),complement(Y8))) )
    | ~ achievable(row(n7),squares(not_covered,not_covered,not_covered,not_covered,not_covered,not_covered,not_covered,not_covered))
    | achievable(row(successor(n7)),squares(complement(not_covered),complement(not_covered),complement(not_covered),complement(not_covered),complement(not_covered),complement(not_covered),complement(not_covered),complement(not_covered))) ),
    inference(quant_inst,[status(thm)],[]) ).

tff(119,plain,
    ( ~ ! [Y4: $i,Y8: $i,Y2: $i,Y1: $i,Y5: $i,Y3: $i,Y7: $i,X: $i,Y6: $i] :
          ( ~ achievable(row(X),squares(Y1,Y2,Y3,Y4,Y5,Y6,Y7,Y8))
          | achievable(row(successor(X)),squares(complement(Y1),complement(Y2),complement(Y3),complement(Y4),complement(Y5),complement(Y6),complement(Y7),complement(Y8))) )
    | ~ achievable(row(n7),squares(not_covered,not_covered,not_covered,not_covered,not_covered,not_covered,not_covered,not_covered))
    | achievable(row(successor(n7)),squares(complement(not_covered),complement(not_covered),complement(not_covered),complement(not_covered),complement(not_covered),complement(not_covered),complement(not_covered),complement(not_covered))) ),
    inference(modus_ponens,[status(thm)],[118,117]) ).

tff(120,plain,
    ( ~ achievable(row(n7),squares(not_covered,not_covered,not_covered,not_covered,not_covered,not_covered,not_covered,not_covered))
    | achievable(row(successor(n7)),squares(complement(not_covered),complement(not_covered),complement(not_covered),complement(not_covered),complement(not_covered),complement(not_covered),complement(not_covered),complement(not_covered))) ),
    inference(unit_resolution,[status(thm)],[119,56]) ).

tff(121,plain,
    ~ achievable(row(n7),squares(not_covered,not_covered,not_covered,not_covered,not_covered,not_covered,not_covered,not_covered)),
    inference(unit_resolution,[status(thm)],[120,116]) ).

tff(122,plain,
    ~ achievable(row(successor(n6)),squares(complement(covered),complement(covered),complement(covered),complement(covered),complement(covered),complement(covered),complement(covered),complement(covered))),
    inference(modus_ponens,[status(thm)],[121,105]) ).

tff(123,plain,
    ( ( ~ ! [Y4: $i,Y8: $i,Y2: $i,Y1: $i,Y5: $i,Y3: $i,Y7: $i,X: $i,Y6: $i] :
            ( ~ achievable(row(X),squares(Y1,Y2,Y3,Y4,Y5,Y6,Y7,Y8))
            | achievable(row(successor(X)),squares(complement(Y1),complement(Y2),complement(Y3),complement(Y4),complement(Y5),complement(Y6),complement(Y7),complement(Y8))) )
      | ~ achievable(row(n6),squares(covered,covered,covered,covered,covered,covered,covered,covered))
      | achievable(row(successor(n6)),squares(complement(covered),complement(covered),complement(covered),complement(covered),complement(covered),complement(covered),complement(covered),complement(covered))) )
  <=> ( ~ ! [Y4: $i,Y8: $i,Y2: $i,Y1: $i,Y5: $i,Y3: $i,Y7: $i,X: $i,Y6: $i] :
            ( ~ achievable(row(X),squares(Y1,Y2,Y3,Y4,Y5,Y6,Y7,Y8))
            | achievable(row(successor(X)),squares(complement(Y1),complement(Y2),complement(Y3),complement(Y4),complement(Y5),complement(Y6),complement(Y7),complement(Y8))) )
      | ~ achievable(row(n6),squares(covered,covered,covered,covered,covered,covered,covered,covered))
      | achievable(row(successor(n6)),squares(complement(covered),complement(covered),complement(covered),complement(covered),complement(covered),complement(covered),complement(covered),complement(covered))) ) ),
    inference(rewrite,[status(thm)],[]) ).

tff(124,plain,
    ( ~ ! [Y4: $i,Y8: $i,Y2: $i,Y1: $i,Y5: $i,Y3: $i,Y7: $i,X: $i,Y6: $i] :
          ( ~ achievable(row(X),squares(Y1,Y2,Y3,Y4,Y5,Y6,Y7,Y8))
          | achievable(row(successor(X)),squares(complement(Y1),complement(Y2),complement(Y3),complement(Y4),complement(Y5),complement(Y6),complement(Y7),complement(Y8))) )
    | ~ achievable(row(n6),squares(covered,covered,covered,covered,covered,covered,covered,covered))
    | achievable(row(successor(n6)),squares(complement(covered),complement(covered),complement(covered),complement(covered),complement(covered),complement(covered),complement(covered),complement(covered))) ),
    inference(quant_inst,[status(thm)],[]) ).

tff(125,plain,
    ( ~ ! [Y4: $i,Y8: $i,Y2: $i,Y1: $i,Y5: $i,Y3: $i,Y7: $i,X: $i,Y6: $i] :
          ( ~ achievable(row(X),squares(Y1,Y2,Y3,Y4,Y5,Y6,Y7,Y8))
          | achievable(row(successor(X)),squares(complement(Y1),complement(Y2),complement(Y3),complement(Y4),complement(Y5),complement(Y6),complement(Y7),complement(Y8))) )
    | ~ achievable(row(n6),squares(covered,covered,covered,covered,covered,covered,covered,covered))
    | achievable(row(successor(n6)),squares(complement(covered),complement(covered),complement(covered),complement(covered),complement(covered),complement(covered),complement(covered),complement(covered))) ),
    inference(modus_ponens,[status(thm)],[124,123]) ).

tff(126,plain,
    ( ~ achievable(row(n6),squares(covered,covered,covered,covered,covered,covered,covered,covered))
    | achievable(row(successor(n6)),squares(complement(covered),complement(covered),complement(covered),complement(covered),complement(covered),complement(covered),complement(covered),complement(covered))) ),
    inference(unit_resolution,[status(thm)],[125,56]) ).

tff(127,plain,
    ~ achievable(row(n6),squares(covered,covered,covered,covered,covered,covered,covered,covered)),
    inference(unit_resolution,[status(thm)],[126,122]) ).

tff(128,plain,
    ~ achievable(row(successor(n5)),squares(complement(not_covered),complement(not_covered),complement(not_covered),complement(not_covered),complement(not_covered),complement(not_covered),complement(not_covered),complement(not_covered))),
    inference(modus_ponens,[status(thm)],[127,98]) ).

tff(129,plain,
    ( ( ~ ! [Y4: $i,Y8: $i,Y2: $i,Y1: $i,Y5: $i,Y3: $i,Y7: $i,X: $i,Y6: $i] :
            ( ~ achievable(row(X),squares(Y1,Y2,Y3,Y4,Y5,Y6,Y7,Y8))
            | achievable(row(successor(X)),squares(complement(Y1),complement(Y2),complement(Y3),complement(Y4),complement(Y5),complement(Y6),complement(Y7),complement(Y8))) )
      | ~ achievable(row(n5),squares(not_covered,not_covered,not_covered,not_covered,not_covered,not_covered,not_covered,not_covered))
      | achievable(row(successor(n5)),squares(complement(not_covered),complement(not_covered),complement(not_covered),complement(not_covered),complement(not_covered),complement(not_covered),complement(not_covered),complement(not_covered))) )
  <=> ( ~ ! [Y4: $i,Y8: $i,Y2: $i,Y1: $i,Y5: $i,Y3: $i,Y7: $i,X: $i,Y6: $i] :
            ( ~ achievable(row(X),squares(Y1,Y2,Y3,Y4,Y5,Y6,Y7,Y8))
            | achievable(row(successor(X)),squares(complement(Y1),complement(Y2),complement(Y3),complement(Y4),complement(Y5),complement(Y6),complement(Y7),complement(Y8))) )
      | ~ achievable(row(n5),squares(not_covered,not_covered,not_covered,not_covered,not_covered,not_covered,not_covered,not_covered))
      | achievable(row(successor(n5)),squares(complement(not_covered),complement(not_covered),complement(not_covered),complement(not_covered),complement(not_covered),complement(not_covered),complement(not_covered),complement(not_covered))) ) ),
    inference(rewrite,[status(thm)],[]) ).

tff(130,plain,
    ( ~ ! [Y4: $i,Y8: $i,Y2: $i,Y1: $i,Y5: $i,Y3: $i,Y7: $i,X: $i,Y6: $i] :
          ( ~ achievable(row(X),squares(Y1,Y2,Y3,Y4,Y5,Y6,Y7,Y8))
          | achievable(row(successor(X)),squares(complement(Y1),complement(Y2),complement(Y3),complement(Y4),complement(Y5),complement(Y6),complement(Y7),complement(Y8))) )
    | ~ achievable(row(n5),squares(not_covered,not_covered,not_covered,not_covered,not_covered,not_covered,not_covered,not_covered))
    | achievable(row(successor(n5)),squares(complement(not_covered),complement(not_covered),complement(not_covered),complement(not_covered),complement(not_covered),complement(not_covered),complement(not_covered),complement(not_covered))) ),
    inference(quant_inst,[status(thm)],[]) ).

tff(131,plain,
    ( ~ ! [Y4: $i,Y8: $i,Y2: $i,Y1: $i,Y5: $i,Y3: $i,Y7: $i,X: $i,Y6: $i] :
          ( ~ achievable(row(X),squares(Y1,Y2,Y3,Y4,Y5,Y6,Y7,Y8))
          | achievable(row(successor(X)),squares(complement(Y1),complement(Y2),complement(Y3),complement(Y4),complement(Y5),complement(Y6),complement(Y7),complement(Y8))) )
    | ~ achievable(row(n5),squares(not_covered,not_covered,not_covered,not_covered,not_covered,not_covered,not_covered,not_covered))
    | achievable(row(successor(n5)),squares(complement(not_covered),complement(not_covered),complement(not_covered),complement(not_covered),complement(not_covered),complement(not_covered),complement(not_covered),complement(not_covered))) ),
    inference(modus_ponens,[status(thm)],[130,129]) ).

tff(132,plain,
    ( ~ achievable(row(n5),squares(not_covered,not_covered,not_covered,not_covered,not_covered,not_covered,not_covered,not_covered))
    | achievable(row(successor(n5)),squares(complement(not_covered),complement(not_covered),complement(not_covered),complement(not_covered),complement(not_covered),complement(not_covered),complement(not_covered),complement(not_covered))) ),
    inference(unit_resolution,[status(thm)],[131,56]) ).

tff(133,plain,
    ~ achievable(row(n5),squares(not_covered,not_covered,not_covered,not_covered,not_covered,not_covered,not_covered,not_covered)),
    inference(unit_resolution,[status(thm)],[132,128]) ).

tff(134,plain,
    $false,
    inference(unit_resolution,[status(thm)],[133,91]) ).

%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.03/0.12  % Problem    : PUZ016-1 : TPTP v9.0.0. Released v1.0.0.
% 0.03/0.12  % Command    : run_E %s %d THM
% 0.12/0.32  % Computer : n009.cluster.edu
% 0.12/0.32  % Model    : x86_64 x86_64
% 0.12/0.32  % CPU      : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.12/0.32  % Memory   : 8042.1875MB
% 0.12/0.32  % OS       : Linux 3.10.0-693.el7.x86_64
% 0.12/0.32  % CPULimit   : 300
% 0.12/0.32  % WCLimit    : 300
% 0.12/0.32  % DateTime   : Fri Jun 20 02:39:33 EDT 2025
% 0.12/0.33  % CPUTime    : 
% 1.52/1.72  % SZS status Unsatisfiable
% 1.52/1.72  % SZS output start Proof
% See solution above
% 1.52/1.75  % E exiting
%------------------------------------------------------------------------------