%------------------------------------------------------------------------------
% File : iProver---3.9.4
% Problem : LAT156-1 : TPTP v9.3.1. Released v3.1.0.
% Transfm : none
% Format : tptp:raw
% Command : run_iprover 300 /export/starexec/sandbox2/benchmark/theBenchmark.p THM
% Computer : n004.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 01:58:19 PM UTC 2026
% Result : Unsatisfiable 53.24s 13.16s
% Output : CNFRefutation 53.24s
% Verified :
% SZS Type : Refutation
% Derivation depth : 18
% Number of leaves : 16
% Syntax : Number of formulae : 94 ( 94 unt; 7 def)
% Number of atoms : 293 ( 93 equ)
% Maximal formula atoms : 1 ( 3 avg)
% Number of connectives : 5 ( 5 ~; 0 |; 0 &)
% ( 0 <=>; 0 =>; 0 <=; 0 <~>)
% Maximal formula depth : 5 ( 2 avg)
% Maximal term depth : 6 ( 2 avg)
% Number of types : 1 ( 0 usr)
% Number of type conns : 0 ( 0 >; 0 *; 0 +; 0 <<)
% Number of predicates : 9 ( 7 usr; 8 prp; 0-2 aty)
% Number of functors : 5 ( 5 usr; 3 con; 0-2 aty)
% Number of variables : 56 ( 0 sgn 56 !; 0 ?; 37 :)
% Comments :
%------------------------------------------------------------------------------
fof(f2,axiom,
! [X0] : join(X0,X0) = X0,
file('/export/starexec/sandbox2/benchmark/Axioms/LAT001-0.ax',idempotence_of_join) ).
fof(f3,axiom,
! [X0,X1] : meet(X0,join(X0,X1)) = X0,
file('/export/starexec/sandbox2/benchmark/Axioms/LAT001-0.ax',absorption1) ).
fof(f4,axiom,
! [X0,X1] : join(X0,meet(X0,X1)) = X0,
file('/export/starexec/sandbox2/benchmark/Axioms/LAT001-0.ax',absorption2) ).
fof(f5,axiom,
! [X0,X1] : meet(X0,X1) = meet(X1,X0),
file('/export/starexec/sandbox2/benchmark/Axioms/LAT001-0.ax',commutativity_of_meet) ).
fof(f6,axiom,
! [X0,X1] : join(X0,X1) = join(X1,X0),
file('/export/starexec/sandbox2/benchmark/Axioms/LAT001-0.ax',commutativity_of_join) ).
fof(f7,axiom,
! [X2,X0,X1] : meet(meet(X0,X1),X2) = meet(X0,meet(X1,X2)),
file('/export/starexec/sandbox2/benchmark/Axioms/LAT001-0.ax',associativity_of_meet) ).
fof(f8,axiom,
! [X2,X0,X1] : join(join(X0,X1),X2) = join(X0,join(X1,X2)),
file('/export/starexec/sandbox2/benchmark/Axioms/LAT001-0.ax',associativity_of_join) ).
fof(f9,axiom,
! [X2,X3,X0,X1] : meet(X0,join(X1,meet(X2,join(X0,X3)))) = meet(X0,join(X1,join(meet(X0,X2),meet(X2,join(X1,X3))))),
file('/export/starexec/sandbox2/benchmark/theBenchmark.p',equation_H49) ).
fof(f10,negated_conjecture,
meet(a,join(b,meet(a,c))) != meet(a,join(meet(a,join(b,meet(a,c))),meet(c,join(a,b)))),
file('/export/starexec/sandbox2/benchmark/theBenchmark.p',prove_H6) ).
tcf(c_60,plain,
! [X0: $i] : join(X0,X0) = X0,
inference(cnf_transformation,[],[f2]) ).
tcf(c_61,plain,
! [X0: $i,X1: $i] : meet(X0,join(X0,X1)) = X0,
inference(cnf_transformation,[],[f3]) ).
tcf(c_62,plain,
! [X0: $i,X1: $i] : join(X0,meet(X0,X1)) = X0,
inference(cnf_transformation,[],[f4]) ).
tcf(c_63,plain,
! [X0: $i,X1: $i] : meet(X0,X1) = meet(X1,X0),
inference(cnf_transformation,[],[f5]) ).
tcf(c_64,plain,
! [X0: $i,X1: $i] : join(X0,X1) = join(X1,X0),
inference(cnf_transformation,[],[f6]) ).
tcf(c_65,plain,
! [X0: $i,X1: $i,X2: $i] : meet(meet(X0,X1),X2) = meet(X0,meet(X1,X2)),
inference(cnf_transformation,[],[f7]) ).
tcf(c_66,plain,
! [X0: $i,X1: $i,X2: $i] : join(join(X0,X1),X2) = join(X0,join(X1,X2)),
inference(cnf_transformation,[],[f8]) ).
tcf(c_67,plain,
! [X0: $i,X1: $i,X2: $i,X3: $i] : meet(X0,join(X1,join(meet(X0,X2),meet(X2,join(X1,X3))))) = meet(X0,join(X1,meet(X2,join(X0,X3)))),
inference(cnf_transformation,[],[f9]) ).
tcf(c_68,negated_conjecture,
meet(a,join(meet(a,join(b,meet(a,c))),meet(c,join(a,b)))) != meet(a,join(b,meet(a,c))),
inference(cnf_transformation,[],[f10]) ).
tcf(c_78,negated_conjecture,
meet(a,join(meet(c,join(a,b)),meet(a,join(b,meet(a,c))))) != meet(a,join(b,meet(a,c))),
inference(theory_normalisation,[status(thm)],[c_68,c_65,c_63,c_66,c_64]) ).
tcf(c_103,definition,
iPr_def_10 = join(a,b),
introduced(definition,[new_symbols(definition,[iPr_def_10])],[]) ).
tcf(c_104,definition,
iPr_def_11 = meet(c,iPr_def_10),
introduced(definition,[new_symbols(definition,[iPr_def_11])],[]) ).
tcf(c_105,definition,
iPr_def_12 = meet(a,c),
introduced(definition,[new_symbols(definition,[iPr_def_12])],[]) ).
tcf(c_106,definition,
iPr_def_13 = join(b,iPr_def_12),
introduced(definition,[new_symbols(definition,[iPr_def_13])],[]) ).
tcf(c_107,definition,
iPr_def_14 = meet(a,iPr_def_13),
introduced(definition,[new_symbols(definition,[iPr_def_14])],[]) ).
tcf(c_108,definition,
iPr_def_15 = join(iPr_def_11,iPr_def_14),
introduced(definition,[new_symbols(definition,[iPr_def_15])],[]) ).
tcf(c_109,definition,
iPr_def_16 = meet(a,iPr_def_15),
introduced(definition,[new_symbols(definition,[iPr_def_16])],[]) ).
tcf(c_110,negated_conjecture,
iPr_def_16 != iPr_def_14,
inference(demodulation,[status(thm)],[c_78,c_105,c_106,c_107,c_103,c_104,c_108,c_109]) ).
tcf(c_1344,plain,
meet(iPr_def_10,c) = iPr_def_11,
inference(theory_normalisation,[status(thm)],[c_104,c_66,c_64,c_65,c_63]) ).
tcf(c_1345,plain,
join(iPr_def_12,b) = iPr_def_13,
inference(theory_normalisation,[status(thm)],[c_106,c_66,c_64,c_65,c_63]) ).
tcf(c_1346,plain,
meet(iPr_def_13,a) = iPr_def_14,
inference(theory_normalisation,[status(thm)],[c_107,c_66,c_64,c_65,c_63]) ).
tcf(c_1347,plain,
meet(iPr_def_15,a) = iPr_def_16,
inference(theory_normalisation,[status(thm)],[c_109,c_66,c_64,c_65,c_63]) ).
tcf(c_1355,plain,
! [X0: $i] : join(a,join(b,X0)) = join(iPr_def_10,X0),
inference(superposition,[status(thm)],[c_103,c_66]) ).
tcf(c_1358,plain,
! [X0: $i] : join(iPr_def_11,join(iPr_def_14,X0)) = join(iPr_def_15,X0),
inference(superposition,[status(thm)],[c_108,c_66]) ).
tcf(c_1361,plain,
! [X0: $i] : meet(iPr_def_13,meet(a,X0)) = meet(iPr_def_14,X0),
inference(superposition,[status(thm)],[c_1346,c_65]) ).
tcf(c_1362,plain,
! [X0: $i] : meet(iPr_def_15,meet(a,X0)) = meet(iPr_def_16,X0),
inference(superposition,[status(thm)],[c_1347,c_65]) ).
tcf(c_1364,plain,
join(a,iPr_def_12) = a,
inference(superposition,[status(thm)],[c_105,c_62]) ).
tcf(c_1366,plain,
! [X0: $i,X1: $i] : join(X0,meet(X1,X0)) = X0,
inference(superposition,[status(thm)],[c_63,c_62]) ).
tcf(c_1370,plain,
join(iPr_def_13,iPr_def_14) = iPr_def_13,
inference(superposition,[status(thm)],[c_1346,c_62]) ).
tcf(c_1371,plain,
join(iPr_def_15,iPr_def_16) = iPr_def_15,
inference(superposition,[status(thm)],[c_1347,c_62]) ).
tcf(c_1374,plain,
join(iPr_def_12,a) = a,
inference(theory_normalisation,[status(thm)],[c_1364,c_66,c_64,c_65,c_63]) ).
tcf(c_1382,plain,
join(a,iPr_def_14) = a,
inference(superposition,[status(thm)],[c_1346,c_1366]) ).
tcf(c_1387,plain,
join(iPr_def_14,a) = a,
inference(theory_normalisation,[status(thm)],[c_1382,c_66,c_64,c_65,c_63]) ).
tcf(c_1390,plain,
! [X0: $i] : join(iPr_def_12,join(a,X0)) = join(a,X0),
inference(superposition,[status(thm)],[c_1374,c_66]) ).
tcf(c_1398,plain,
! [X0: $i,X1: $i] : meet(X0,join(X1,X0)) = X0,
inference(superposition,[status(thm)],[c_64,c_61]) ).
tcf(c_1402,plain,
meet(iPr_def_12,iPr_def_13) = iPr_def_12,
inference(superposition,[status(thm)],[c_1345,c_61]) ).
tcf(c_1419,plain,
! [X0: $i,X1: $i] : meet(a,join(X0,join(iPr_def_12,meet(c,join(X0,X1))))) = meet(a,join(X0,meet(c,join(a,X1)))),
inference(superposition,[status(thm)],[c_105,c_67]) ).
tcf(c_1427,plain,
! [X0: $i,X1: $i] : meet(iPr_def_15,join(X0,join(iPr_def_16,meet(a,join(X0,X1))))) = meet(iPr_def_15,join(X0,meet(a,join(iPr_def_15,X1)))),
inference(superposition,[status(thm)],[c_1347,c_67]) ).
tcf(c_1495,plain,
join(iPr_def_13,iPr_def_12) = iPr_def_13,
inference(superposition,[status(thm)],[c_1402,c_1366]) ).
tcf(c_1496,plain,
join(iPr_def_12,iPr_def_13) = iPr_def_13,
inference(theory_normalisation,[status(thm)],[c_1495,c_66,c_64,c_65,c_63]) ).
tcf(c_1511,plain,
meet(iPr_def_14,a) = iPr_def_14,
inference(superposition,[status(thm)],[c_1387,c_61]) ).
tcf(c_1541,plain,
meet(iPr_def_14,iPr_def_15) = iPr_def_14,
inference(superposition,[status(thm)],[c_108,c_1398]) ).
tcf(c_1545,plain,
meet(iPr_def_16,iPr_def_15) = iPr_def_16,
inference(superposition,[status(thm)],[c_1371,c_1398]) ).
tcf(c_1557,plain,
meet(iPr_def_15,iPr_def_16) = iPr_def_16,
inference(theory_normalisation,[status(thm)],[c_1545,c_66,c_64,c_65,c_63]) ).
tcf(c_1595,plain,
! [X0: $i] : meet(iPr_def_14,meet(iPr_def_15,X0)) = meet(iPr_def_14,X0),
inference(superposition,[status(thm)],[c_1541,c_65]) ).
tcf(c_1801,plain,
meet(iPr_def_13,iPr_def_12) = meet(iPr_def_14,c),
inference(superposition,[status(thm)],[c_105,c_1361]) ).
tcf(c_1815,plain,
meet(iPr_def_12,iPr_def_13) = meet(iPr_def_14,c),
inference(theory_normalisation,[status(thm)],[c_1801,c_66,c_64,c_65,c_63]) ).
tcf(c_1816,plain,
meet(iPr_def_14,c) = iPr_def_12,
inference(light_normalisation,[status(thm)],[c_1815,c_1402]) ).
tcf(c_1832,plain,
join(iPr_def_14,iPr_def_12) = iPr_def_14,
inference(superposition,[status(thm)],[c_1816,c_62]) ).
tcf(c_1836,plain,
join(iPr_def_12,iPr_def_14) = iPr_def_14,
inference(theory_normalisation,[status(thm)],[c_1832,c_66,c_64,c_65,c_63]) ).
tcf(c_2407,plain,
! [X0: $i] : join(a,join(X0,b)) = join(iPr_def_10,X0),
inference(superposition,[status(thm)],[c_64,c_1355]) ).
tcf(c_2514,plain,
! [X0: $i] : join(iPr_def_15,meet(iPr_def_14,X0)) = join(iPr_def_11,iPr_def_14),
inference(superposition,[status(thm)],[c_62,c_1358]) ).
tcf(c_2515,plain,
! [X0: $i] : join(iPr_def_11,join(X0,iPr_def_14)) = join(iPr_def_15,X0),
inference(superposition,[status(thm)],[c_64,c_1358]) ).
tcf(c_2529,plain,
! [X0: $i] : join(iPr_def_15,meet(iPr_def_14,X0)) = iPr_def_15,
inference(light_normalisation,[status(thm)],[c_2514,c_108]) ).
tcf(c_2749,plain,
join(iPr_def_15,iPr_def_12) = iPr_def_15,
inference(superposition,[status(thm)],[c_1816,c_2529]) ).
tcf(c_2759,plain,
join(iPr_def_12,iPr_def_15) = iPr_def_15,
inference(theory_normalisation,[status(thm)],[c_2749,c_66,c_64,c_65,c_63]) ).
tcf(c_2873,plain,
meet(iPr_def_15,iPr_def_12) = meet(iPr_def_16,c),
inference(superposition,[status(thm)],[c_105,c_1362]) ).
tcf(c_2891,plain,
meet(iPr_def_12,iPr_def_15) = meet(iPr_def_16,c),
inference(theory_normalisation,[status(thm)],[c_2873,c_66,c_64,c_65,c_63]) ).
tcf(c_3279,plain,
join(iPr_def_12,iPr_def_10) = iPr_def_10,
inference(superposition,[status(thm)],[c_103,c_1390]) ).
tcf(c_3294,plain,
join(iPr_def_10,iPr_def_12) = iPr_def_10,
inference(theory_normalisation,[status(thm)],[c_3279,c_66,c_64,c_65,c_63]) ).
tcf(c_3322,plain,
meet(iPr_def_12,iPr_def_15) = iPr_def_12,
inference(superposition,[status(thm)],[c_2759,c_61]) ).
tcf(c_3847,plain,
meet(iPr_def_16,c) = iPr_def_12,
inference(light_normalisation,[status(thm)],[c_2891,c_3322]) ).
tcf(c_3851,plain,
join(iPr_def_16,iPr_def_12) = iPr_def_16,
inference(superposition,[status(thm)],[c_3847,c_62]) ).
tcf(c_3858,plain,
join(iPr_def_12,iPr_def_16) = iPr_def_16,
inference(theory_normalisation,[status(thm)],[c_3851,c_66,c_64,c_65,c_63]) ).
tcf(c_5713,plain,
meet(iPr_def_14,a) = meet(iPr_def_14,iPr_def_16),
inference(superposition,[status(thm)],[c_1347,c_1595]) ).
tcf(c_5727,plain,
meet(iPr_def_14,iPr_def_16) = iPr_def_14,
inference(light_normalisation,[status(thm)],[c_5713,c_1511]) ).
tcf(c_5831,plain,
join(iPr_def_16,iPr_def_14) = iPr_def_16,
inference(superposition,[status(thm)],[c_5727,c_1366]) ).
tcf(c_5836,plain,
join(iPr_def_14,iPr_def_16) = iPr_def_16,
inference(theory_normalisation,[status(thm)],[c_5831,c_66,c_64,c_65,c_63]) ).
tcf(c_11097,plain,
join(a,iPr_def_13) = join(iPr_def_10,iPr_def_12),
inference(superposition,[status(thm)],[c_1345,c_2407]) ).
tcf(c_11125,plain,
join(iPr_def_10,iPr_def_12) = join(iPr_def_13,a),
inference(theory_normalisation,[status(thm)],[c_11097,c_66,c_64,c_65,c_63]) ).
tcf(c_11126,plain,
join(iPr_def_13,a) = iPr_def_10,
inference(light_normalisation,[status(thm)],[c_11125,c_3294]) ).
tcf(c_11367,plain,
join(iPr_def_11,iPr_def_13) = join(iPr_def_15,iPr_def_13),
inference(superposition,[status(thm)],[c_1370,c_2515]) ).
tcf(c_11394,plain,
join(iPr_def_11,iPr_def_13) = join(iPr_def_13,iPr_def_15),
inference(theory_normalisation,[status(thm)],[c_11367,c_66,c_64,c_65,c_63]) ).
tcf(c_29686,plain,
meet(a,join(iPr_def_13,join(iPr_def_12,meet(c,iPr_def_10)))) = meet(a,join(iPr_def_13,meet(c,join(a,a)))),
inference(superposition,[status(thm)],[c_11126,c_1419]) ).
tcf(c_29892,plain,
meet(a,join(iPr_def_12,join(iPr_def_13,meet(iPr_def_10,c)))) = meet(a,join(iPr_def_13,meet(c,join(a,a)))),
inference(theory_normalisation,[status(thm)],[c_29686,c_66,c_64,c_65,c_63]) ).
tcf(c_29893,plain,
meet(a,join(meet(iPr_def_10,c),iPr_def_13)) = iPr_def_14,
inference(ac_demodulation,[status(thm)],[c_29892,c_1496,c_1346,c_1496,c_105,c_60,c_66,c_64,c_65,c_63]) ).
tcf(c_29894,plain,
meet(a,join(iPr_def_11,iPr_def_13)) = iPr_def_14,
inference(light_normalisation,[status(thm)],[c_29893,c_1344]) ).
tcf(c_35837,plain,
meet(iPr_def_15,join(iPr_def_12,join(iPr_def_16,meet(a,iPr_def_13)))) = meet(iPr_def_15,join(iPr_def_12,meet(a,join(iPr_def_15,iPr_def_13)))),
inference(superposition,[status(thm)],[c_1496,c_1427]) ).
tcf(c_36002,plain,
meet(iPr_def_15,join(iPr_def_12,join(iPr_def_16,meet(iPr_def_13,a)))) = meet(iPr_def_15,join(iPr_def_12,meet(a,join(iPr_def_13,iPr_def_15)))),
inference(theory_normalisation,[status(thm)],[c_35837,c_66,c_64,c_65,c_63]) ).
tcf(c_36003,plain,
meet(iPr_def_15,join(iPr_def_12,meet(a,join(iPr_def_13,iPr_def_15)))) = meet(iPr_def_15,join(meet(iPr_def_13,a),iPr_def_16)),
inference(ac_demodulation,[status(thm)],[c_36002,c_3858,c_66,c_64,c_65,c_63]) ).
tcf(c_36004,plain,
meet(iPr_def_15,iPr_def_14) = iPr_def_16,
inference(light_normalisation,[status(thm)],[c_36003,c_1346,c_1557,c_1836,c_5836,c_11394,c_29894]) ).
tcf(c_36005,plain,
meet(iPr_def_14,iPr_def_15) = iPr_def_16,
inference(theory_normalisation,[status(thm)],[c_36004,c_66,c_64,c_65,c_63]) ).
tcf(c_36006,plain,
iPr_def_14 = iPr_def_16,
inference(light_normalisation,[status(thm)],[c_36005,c_1541]) ).
tcf(c_36236,plain,
iPr_def_14 != iPr_def_14,
inference(demodulation,[status(thm)],[c_110,c_36006]) ).
tcf(c_36237,plain,
$false,
inference(equality_resolution_simp,[status(thm)],[c_36236]) ).
%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.00/0.03 % Problem : LAT156-1 : TPTP v9.3.1. Released v3.1.0.
% 0.00/0.04 % Command : run_iprover 300 /export/starexec/sandbox2/benchmark/theBenchmark.p THM
% 0.10/5.39 % Computer : n004.cluster.edu
% 0.10/5.39 % Model : x86_64 x86_64
% 0.10/5.39 % CPU : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.10/5.39 % Memory : 8046.5625MB
% 0.10/5.39 % OS : Linux 6.8.0-71-generic
% 0.10/5.39 % CPULimit : 300
% 0.10/5.39 % WCLimit : 300
% 0.10/5.39 % DateTime : Wed Sep 23 20:24:27 UTC 2026
% 0.10/5.39 % CPUTime :
% 0.10/5.39 Running run_iprover 300 /export/starexec/sandbox2/benchmark/theBenchmark.p THM
% 0.15/5.42 Running UEQ theorem proving
% 0.15/5.43 Running: /export/starexec/sandbox2/solver/bin/iproveropt-multi-core.sh -d -n -l tptp -s ueq_schedule -t 300 /export/starexec/sandbox2/benchmark/theBenchmark.p
% 0.15/5.44
% 0.15/5.44 % ======== iProver multi-core TPTP/SMT =========
% 0.15/5.44
% 0.15/5.44 % Detected problem language: tptp
% 0.15/5.45 % Proving...
% 53.24/13.16 WARNING - Clausifier option not provided in the heuristic config "heur/vip2_118404", setting default options.
% 53.24/13.16 % SZS status Started for theBenchmark.p
% 53.24/13.16 % SZS status Unsatisfiable for theBenchmark.p
% 53.24/13.16
% 53.24/13.16 %---------------- iProver v3.9.4 (pre CASC 2026/SMT-COMP 2026) ----------------%
% 53.24/13.16
% 53.24/13.16 % ------ iProver source info
% 53.24/13.16
% 53.24/13.16 % git: date: 2026-07-19 20:42:38 +0200
% 53.24/13.16 % git: sha1: 804e7d636a263075307957e923b7a22a4035de61
% 53.24/13.16 % git: non_committed_changes: false
% 53.24/13.16
% 53.24/13.16 % ------ Parsing...% successful
% 53.24/13.16
% 53.24/13.16
% 53.24/13.16 % ------ Clausification by vclausify_rel & Parsing by iProver...%
% 53.24/13.16
% 53.24/13.16 % ------ Preprocessing... sup_sim: 0 sf_s rm: 0 0s sf_e pe_s pe_e %
% 53.24/13.16
% 53.24/13.16 % ------ Preprocessing... gs_s sp: 0 0s gs_e snvd_s sp: 0 0s snvd_e %
% 53.24/13.16
% 53.24/13.16 % ------ Preprocessing... sf_s rm: 0 0s sf_e
% 53.24/13.16 % ------ Proving...
% 53.24/13.16 % ------ Problem Properties
% 53.24/13.16
% 53.24/13.16 %
% 53.24/13.16 % clauses 17
% 53.24/13.16 % conjectures 1
% 53.24/13.16 % EPR 1
% 53.24/13.16 % Horn 17
% 53.24/13.16 % unary 17
% 53.24/13.16 % binary 0
% 53.24/13.16 % lits 17
% 53.24/13.16 % lits eq 17
% 53.24/13.16 % fd_pure 0
% 53.24/13.16 % fd_pseudo 0
% 53.24/13.16 % fd_cond 0
% 53.24/13.16 % fd_pseudo_cond 0
% 53.24/13.16 % AC symbols 2
% 53.24/13.16
% 53.24/13.16 % ------ Input Options Time Limit: Unbounded
% 53.24/13.16
% 53.24/13.16
% 53.24/13.16 % ------
% 53.24/13.16 % Current options:
% 53.24/13.16 % ------
% 53.24/13.16
% 53.24/13.16
% 53.24/13.16 %
% 53.24/13.16
% 53.24/13.16 % ------ Proving...
% 53.24/13.16 %
% 53.24/13.16
% 53.24/13.16 % SZS status Unsatisfiable for theBenchmark.p
% 53.24/13.16
% 53.24/13.16 % SZS output start CNFRefutation for theBenchmark.p
% See solution above
% 53.24/13.16
% 53.24/13.16
%------------------------------------------------------------------------------