%------------------------------------------------------------------------------
% File : FindProof---0.1
% Problem : SYN680-1 : TPTP v9.3.1. Released v2.5.0.
% Transfm : none
% Format : tptp:raw
% Command : run_findproof /export/starexec/sandbox/benchmark/theBenchmark.p 300
% Computer : n015.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 : Fri Sep 25 03:35:28 PM UTC 2026
% Result : Unsatisfiable 28.20s 4.08s
% Output : Proof 28.20s
% Verified :
% SZS Type : Refutation
% Derivation depth : 19
% Number of leaves : 9
% Syntax : Number of formulae : 66 ( 58 unt; 0 def)
% Number of atoms : 82 ( 36 equ)
% Maximal formula atoms : 3 ( 1 avg)
% Number of connectives : 42 ( 26 ~; 16 |; 0 &)
% ( 0 <=>; 0 =>; 0 <=; 0 <~>)
% Maximal formula depth : 7 ( 2 avg)
% Maximal term depth : 6 ( 2 avg)
% Number of predicates : 4 ( 2 usr; 1 prp; 0-2 aty)
% Number of functors : 14 ( 14 usr; 7 con; 0-4 aty)
% Number of variables : 51 ( 2 sgn 12 !; 0 ?)
% Comments :
%------------------------------------------------------------------------------
cnf(f30,negated_conjecture,
( ~ p2(X28,X30)
| ~ p2(X28,X29)
| p2(X29,X30) ),
file('/export/starexec/sandbox/benchmark/theBenchmark.p',p2_31) ).
fof(f30_nnf,plain,
! [X29,X30,X28] :
( ~ p2(X28,X30)
| ~ p2(X28,X29)
| p2(X29,X30) ),
inference(nnf_transformation,[status(thm)],[f30]) ).
fof(f30_sk,plain,
! [X29,X30,X28] :
( ~ p2(X28,X30)
| ~ p2(X28,X29)
| p2(X29,X30) ),
inference(skolemisation,[status(esa)],[f30_nnf]) ).
cnf(c30,plain,
( ~ p2(X2,X1)
| ~ p2(X2,X0)
| p2(X0,X1) ),
inference(cnf_transformation,[status(esa)],[f30_sk]) ).
cnf(t40,plain,
ifeq(p2(X1,X2),true,ifeq(p2(X1,X3),true,p2(X2,X3),true),true) = true,
inference(equality_encoding,[status(esa)],[c30]) ).
cnf(t67,plain,
ifeq(p2(X1,X2),true,ifeq(p2(X1,X3),true,p2(X2,X3),true),true) = true,
inference(orient,[status(thm)],[t40]) ).
cnf(f38,negated_conjecture,
p2(f11(f4(c32),c34),f18(f11(f4(c33),c34),f9(f17(c31)))),
file('/export/starexec/sandbox/benchmark/theBenchmark.p',p2_39) ).
fof(f38_nnf,plain,
p2(f11(f4(c32),c34),f18(f11(f4(c33),c34),f9(f17(c31)))),
inference(nnf_transformation,[status(thm)],[f38]) ).
cnf(c38,plain,
p2(f11(f4(c32),c34),f18(f11(f4(c33),c34),f9(f17(c31)))),
inference(cnf_transformation,[status(esa)],[f38_nnf]) ).
cnf(t31,plain,
p2(f11(f4(c32),c34),f18(f11(f4(c33),c34),f9(f17(c31)))) = true,
inference(equality_encoding,[status(esa)],[c38]) ).
cnf(t115,plain,
p2(f11(f4(c32),c34),f18(f11(f4(c33),c34),f9(f17(c31)))) = true,
inference(orient,[status(thm)],[t31]) ).
cnf(t117,plain,
true = ifeq(p2(f11(f4(c32),c34),X1),true,ifeq(true,true,p2(X1,f18(f11(f4(c33),c34),f9(f17(c31)))),true),true),
inference(cp,[status(thm)],[t67,t115]) ).
cnf(t20,plain,
ifeq(X1,X1,X2,X3) = X2,
introduced(definition) ).
cnf(t62,plain,
ifeq(X1,X1,X2,X3) = X2,
inference(orient,[status(thm)],[t20]) ).
cnf(t11959,plain,
true = ifeq(p2(f11(f4(c32),c34),X1),true,p2(X1,f18(f11(f4(c33),c34),f9(f17(c31)))),true),
inference(step,[status(thm)],[t117,t62]) ).
cnf(t11352,plain,
ifeq(p2(f11(f4(c32),c34),X1),true,p2(X1,f18(f11(f4(c33),c34),f9(f17(c31)))),true) = true,
inference(orient,[status(thm)],[t11959]) ).
cnf(f6,negated_conjecture,
p2(X28,X28),
file('/export/starexec/sandbox/benchmark/theBenchmark.p',p2_7) ).
fof(f6_nnf,plain,
! [X28] : p2(X28,X28),
inference(nnf_transformation,[status(thm)],[f6]) ).
fof(f6_sk,plain,
! [X28] : p2(X28,X28),
inference(skolemisation,[status(esa)],[f6_nnf]) ).
cnf(c6,plain,
p2(X0,X0),
inference(cnf_transformation,[status(esa)],[f6_sk]) ).
cnf(t10,plain,
p2(X1,X1) = true,
inference(equality_encoding,[status(esa)],[c6]) ).
cnf(t98,plain,
p2(X1,X1) = true,
inference(orient,[status(thm)],[t10]) ).
cnf(t100,plain,
true = ifeq(p2(X1,X2),true,ifeq(true,true,p2(X2,X1),true),true),
inference(cp,[status(thm)],[t67,t98]) ).
cnf(t11401,plain,
true = ifeq(p2(X1,X2),true,p2(X2,X1),true),
inference(step,[status(thm)],[t100,t62]) ).
cnf(t544,plain,
ifeq(p2(X1,X2),true,p2(X2,X1),true) = true,
inference(orient,[status(thm)],[t11401]) ).
cnf(f50,negated_conjecture,
( ~ p25(c32,X36)
| ~ p25(X36,c36)
| p2(f11(f4(X36),c34),f11(f4(c32),c34)) ),
file('/export/starexec/sandbox/benchmark/theBenchmark.p',p2_51) ).
fof(f50_nnf,plain,
! [X36] :
( ~ p25(c32,X36)
| ~ p25(X36,c36)
| p2(f11(f4(X36),c34),f11(f4(c32),c34)) ),
inference(nnf_transformation,[status(thm)],[f50]) ).
fof(f50_sk,plain,
! [X36] :
( ~ p25(c32,X36)
| ~ p25(X36,c36)
| p2(f11(f4(X36),c34),f11(f4(c32),c34)) ),
inference(skolemisation,[status(esa)],[f50_nnf]) ).
cnf(c50,plain,
( ~ p25(c32,X0)
| ~ p25(X0,c36)
| p2(f11(f4(X0),c34),f11(f4(c32),c34)) ),
inference(cnf_transformation,[status(esa)],[f50_sk]) ).
cnf(t58,plain,
ifeq(p25(X1,c36),true,ifeq(p25(c32,X1),true,p2(f11(f4(X1),c34),f11(f4(c32),c34)),true),true) = true,
inference(equality_encoding,[status(esa)],[c50]) ).
cnf(t82,plain,
ifeq(p25(X1,c36),true,ifeq(p25(c32,X1),true,p2(f11(f4(X1),c34),f11(f4(c32),c34)),true),true) = true,
inference(orient,[status(thm)],[t58]) ).
cnf(f11,negated_conjecture,
p25(c33,c36),
file('/export/starexec/sandbox/benchmark/theBenchmark.p',p25_12) ).
fof(f11_nnf,plain,
p25(c33,c36),
inference(nnf_transformation,[status(thm)],[f11]) ).
cnf(c11,plain,
p25(c33,c36),
inference(cnf_transformation,[status(esa)],[f11_nnf]) ).
cnf(t14,plain,
p25(c33,c36) = true,
inference(equality_encoding,[status(esa)],[c11]) ).
cnf(t202,plain,
p25(c33,c36) = true,
inference(orient,[status(thm)],[t14]) ).
cnf(t205,plain,
true = ifeq(true,true,ifeq(p25(c32,c33),true,p2(f11(f4(c33),c34),f11(f4(c32),c34)),true),true),
inference(cp,[status(thm)],[t82,t202]) ).
cnf(t11424,plain,
true = ifeq(p25(c32,c33),true,p2(f11(f4(c33),c34),f11(f4(c32),c34)),true),
inference(step,[status(thm)],[t205,t62]) ).
cnf(f13,negated_conjecture,
p25(c32,c33),
file('/export/starexec/sandbox/benchmark/theBenchmark.p',p25_14) ).
fof(f13_nnf,plain,
p25(c32,c33),
inference(nnf_transformation,[status(thm)],[f13]) ).
cnf(c13,plain,
p25(c32,c33),
inference(cnf_transformation,[status(esa)],[f13_nnf]) ).
cnf(t12,plain,
p25(c32,c33) = true,
inference(equality_encoding,[status(esa)],[c13]) ).
cnf(t190,plain,
p25(c32,c33) = true,
inference(orient,[status(thm)],[t12]) ).
cnf(t11425,plain,
true = ifeq(true,true,p2(f11(f4(c33),c34),f11(f4(c32),c34)),true),
inference(step,[status(thm)],[t11424,t190]) ).
cnf(t11426,plain,
true = p2(f11(f4(c33),c34),f11(f4(c32),c34)),
inference(step,[status(thm)],[t11425,t62]) ).
cnf(t849,plain,
p2(f11(f4(c33),c34),f11(f4(c32),c34)) = true,
inference(orient,[status(thm)],[t11426]) ).
cnf(t850,plain,
true = ifeq(true,true,p2(f11(f4(c32),c34),f11(f4(c33),c34)),true),
inference(cp,[status(thm)],[t544,t849]) ).
cnf(t11447,plain,
true = p2(f11(f4(c32),c34),f11(f4(c33),c34)),
inference(step,[status(thm)],[t850,t62]) ).
cnf(t895,plain,
p2(f11(f4(c32),c34),f11(f4(c33),c34)) = true,
inference(orient,[status(thm)],[t11447]) ).
cnf(t11353,plain,
true = ifeq(true,true,p2(f11(f4(c33),c34),f18(f11(f4(c33),c34),f9(f17(c31)))),true),
inference(cp,[status(thm)],[t11352,t895]) ).
cnf(t11960,plain,
true = p2(f11(f4(c33),c34),f18(f11(f4(c33),c34),f9(f17(c31)))),
inference(step,[status(thm)],[t11353,t62]) ).
cnf(f18,negated_conjecture,
~ p2(X96,f18(X96,f9(f17(c31)))),
file('/export/starexec/sandbox/benchmark/theBenchmark.p',not_p2_19) ).
fof(f18_nnf,plain,
! [X96] : ~ p2(X96,f18(X96,f9(f17(c31)))),
inference(nnf_transformation,[status(thm)],[f18]) ).
fof(f18_sk,plain,
! [X96] : ~ p2(X96,f18(X96,f9(f17(c31)))),
inference(skolemisation,[status(esa)],[f18_nnf]) ).
cnf(c18,plain,
~ p2(X0,f18(X0,f9(f17(c31)))),
inference(cnf_transformation,[status(esa)],[f18_sk]) ).
cnf(t22,plain,
p2(X1,f18(X1,f9(f17(c31)))) = false,
inference(equality_encoding,[status(esa)],[c18]) ).
cnf(t267,plain,
p2(X1,f18(X1,f9(f17(c31)))) = false,
inference(orient,[status(thm)],[t22]) ).
cnf(t11961,plain,
true = false,
inference(step,[status(thm)],[t11960,t267]) ).
cnf(t11357,plain,
false = true,
inference(orient,[status(thm)],[t11961]) ).
cnf(f42,negated_conjecture,
~ p2(f11(f4(f16(c32,f9(f17(c31)))),c34),f11(f4(c32),c34)),
file('/export/starexec/sandbox/benchmark/theBenchmark.p',not_p2_43) ).
fof(f42_nnf,plain,
~ p2(f11(f4(f16(c32,f9(f17(c31)))),c34),f11(f4(c32),c34)),
inference(nnf_transformation,[status(thm)],[f42]) ).
fof(f42_sk,plain,
~ p2(f11(f4(f16(c32,f9(f17(c31)))),c34),f11(f4(c32),c34)),
inference(skolemisation,[status(esa)],[f42_nnf]) ).
cnf(c42,plain,
~ p2(f11(f4(f16(c32,f9(f17(c31)))),c34),f11(f4(c32),c34)),
inference(cnf_transformation,[status(esa)],[f42_sk]) ).
cnf(goal_0,negated_conjecture,
true != false,
inference(equality_encoding,[status(esa)],[c18,c42]) ).
cnf(g0_0,plain,
true != true,
inference(rw,[status(thm)],[goal_0,t11357]) ).
cnf(contradiction_0,plain,
$false,
inference(trivial_inequality_removal,[status(thm)],[g0_0]) ).
%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.00/0.03 % Problem : SYN680-1 : TPTP v9.3.1. Released v2.5.0.
% 0.00/0.04 % Command : run_findproof /export/starexec/sandbox/benchmark/theBenchmark.p 300
% 0.12/0.39 % Computer : n015.cluster.edu
% 0.12/0.39 % Model : x86_64 x86_64
% 0.12/0.39 % CPU : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.12/0.39 % Memory : 8046.5625MB
% 0.12/0.39 % OS : Linux 6.8.0-71-generic
% 0.12/0.39 % CPULimit : 300
% 0.12/0.39 % WCLimit : 300
% 0.12/0.39 % DateTime : Fri Sep 25 02:07:13 UTC 2026
% 0.12/0.39 % CPUTime :
% 0.12/0.39 Running run_findproof /export/starexec/sandbox/benchmark/theBenchmark.p 300
% 28.20/4.08 % SZS status Unsatisfiable for /export/starexec/sandbox/benchmark/theBenchmark.p
% 28.20/4.08 % SZS output start Proof for /export/starexec/sandbox/benchmark/theBenchmark.p
% See solution above
%------------------------------------------------------------------------------