%------------------------------------------------------------------------------
% File : ConnectPP---0.7.2
% Problem : SYN960+1 : TPTP v9.3.1. Released v3.1.0.
% Transfm : none
% Format : tptp:raw
% Command : /export/starexec/sandbox/solver/bin/connect++ --verbosity 1 --no-colour --tptp-proof --schedule default --timeout 300 /export/starexec/sandbox/benchmark/theBenchmark.p
% Computer : n011.cluster.edu
% Model : x86_64 x86_64
% CPU : Intel(R) Xeon(R) CPU E5-2620 v4 2.10GHz
% Memory : 8046.5625MB
% OS : Linux 6.8.0-71-generic
% CPULimit : 300s
% WCLimit : 300s
% DateTime : Thu Sep 24 09:11:17 AM UTC 2026
% Result : Theorem 0.09s 0.39s
% Output : Proof 0.09s
% Verified :
% SZS Type : ERROR: Analysing output (MakeTreeStats fails)
% Comments :
%------------------------------------------------------------------------------
fof(prove_this,conjecture,
( ? [X,Y] : a(X,Y)
<=> ? [Y,X] : a(X,Y) ),
file('theBenchmark.p',prove_this) ).
fof(f_1_1,negated_conjecture,
~ ( ? [X,Y] : a(X,Y)
<=> ? [Y,X] : a(X,Y) ),
inference(negate,[status(cth)],[prove_this]) ).
fof(f_1_2,negated_conjecture,
( ( ! [X,Y] : ~ a(X,Y)
& ? [Y,X] : a(X,Y) )
| ( ! [Y,X] : ~ a(X,Y)
& ? [X,Y] : a(X,Y) ) ),
inference(fof_nnf,[status(thm)],[f_1_1]) ).
fof(f_1_3,negated_conjecture,
( ( ! [U_7,U_6] : ~ a(U_7,U_6)
& ? [U_5,U_4] : a(U_4,U_5) )
| ( ! [U_3,U_2] : ~ a(U_2,U_3)
& ? [U_1,U_0] : a(U_1,U_0) ) ),
inference(variable_rename,[status(thm)],[f_1_2]) ).
fof(f_1_4,negated_conjecture,
( ( ! [U_7,U_6] : ~ a(U_7,U_6)
& ? [U_5,U_4] : a(U_4,U_5) )
| ( ! [U_3,U_2] : ~ a(U_2,U_3)
& ? [U_0] : a(sK1,U_0) ) ),
inference(skolemize,[status(esa),new_symbols(skolem,[sK1]),skolemize(U_1,sK1)],[f_1_3]) ).
fof(f_1_5,negated_conjecture,
( ( ! [U_7,U_6] : ~ a(U_7,U_6)
& ? [U_5,U_4] : a(U_4,U_5) )
| ( ! [U_3,U_2] : ~ a(U_2,U_3)
& a(sK1,sK2) ) ),
inference(skolemize,[status(esa),new_symbols(skolem,[sK2]),skolemize(U_0,sK2)],[f_1_4]) ).
fof(f_1_6,negated_conjecture,
( ( ! [U_7,U_6] : ~ a(U_7,U_6)
& ? [U_4] : a(U_4,sK3) )
| ( ! [U_3,U_2] : ~ a(U_2,U_3)
& a(sK1,sK2) ) ),
inference(skolemize,[status(esa),new_symbols(skolem,[sK3]),skolemize(U_5,sK3)],[f_1_5]) ).
fof(f_1_7,negated_conjecture,
( ( ! [U_7,U_6] : ~ a(U_7,U_6)
& a(sK4,sK3) )
| ( ! [U_3,U_2] : ~ a(U_2,U_3)
& a(sK1,sK2) ) ),
inference(skolemize,[status(esa),new_symbols(skolem,[sK4]),skolemize(U_4,sK4)],[f_1_6]) ).
fof(f_1_8,negated_conjecture,
( ! [U_6,U_7] :
( ~ a(U_7,U_6)
| ~ sP1(U_6,U_7) )
& ! [U_6,U_7] :
( a(sK4,sK3)
| ~ sP1(U_6,U_7) )
& ! [U_2,U_3] :
( ~ a(U_2,U_3)
| ~ sP0(U_2,U_3) )
& ! [U_2,U_3] :
( a(sK1,sK2)
| ~ sP0(U_2,U_3) )
& ! [U_2,U_3,U_6,U_7] :
( sP1(U_6,U_7)
| sP0(U_2,U_3) ) ),
inference(definitional_conversion,[status(esa),new_symbols(definitional,[sP0,sP1])],[f_1_7]) ).
cnf(f_1_9,negated_conjecture,
( sP1(U_6,U_7)
| sP0(U_2,U_3) ),
inference(clausify,[status(thm)],[f_1_8]) ).
cnf(f_1_10,negated_conjecture,
( a(sK1,sK2)
| ~ sP0(U_2,U_3) ),
inference(clausify,[status(thm)],[f_1_8]) ).
cnf(f_1_11,negated_conjecture,
( ~ a(U_2,U_3)
| ~ sP0(U_2,U_3) ),
inference(clausify,[status(thm)],[f_1_8]) ).
cnf(f_1_12,negated_conjecture,
( a(sK4,sK3)
| ~ sP1(U_6,U_7) ),
inference(clausify,[status(thm)],[f_1_8]) ).
cnf(f_1_13,negated_conjecture,
( ~ a(U_7,U_6)
| ~ sP1(U_6,U_7) ),
inference(clausify,[status(thm)],[f_1_8]) ).
cnf(sat_proved,plain,
$false,
inference(cadical,[status(thm)],[]) ).
%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.00/0.03 % Problem : SYN960+1 : TPTP v9.3.1. Released v3.1.0.
% 0.00/0.03 This is a FOF_THM_RFO_NEQ problem
% 0.00/0.04 % Command : /export/starexec/sandbox/solver/bin/connect++ --verbosity 1 --no-colour --tptp-proof --schedule default --timeout 300 /export/starexec/sandbox/benchmark/theBenchmark.p
% 0.09/0.36 % Computer : n011.cluster.edu
% 0.09/0.36 % Model : x86_64 x86_64
% 0.09/0.36 % CPU : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.09/0.36 % Memory : 8046.5625MB
% 0.09/0.36 % OS : Linux 6.8.0-71-generic
% 0.09/0.36 % CPULimit : 300
% 0.09/0.36 % WCLimit : 300
% 0.09/0.36 % DateTime : Sun Sep 20 07:29:24 UTC 2026
% 0.09/0.37 % CPUTime :
% 0.09/0.39 % SZS status Theorem for theBenchmark
% 0.09/0.39 % SZS output start Proof for theBenchmark
% See solution above
%------------------------------------------------------------------------------