TSTP Solution File: GRP372-1 by iProver---3.8
View Problem
- Process Solution
%------------------------------------------------------------------------------
% File : iProver---3.8
% Problem : GRP372-1 : TPTP v8.1.2. Released v2.5.0.
% Transfm : none
% Format : tptp:raw
% Command : run_iprover %s %d THM
% Computer : n012.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 00:59:35 EDT 2023
% Result : Unsatisfiable 7.28s 1.72s
% Output : CNFRefutation 7.28s
% Verified :
% SZS Type : Refutation
% Derivation depth : 25
% Number of leaves : 13
% Syntax : Number of clauses : 94 ( 34 unt; 47 nHn; 72 RR)
% Number of literals : 210 ( 180 equ; 83 neg)
% Maximal clause size : 12 ( 2 avg)
% Maximal term depth : 4 ( 1 avg)
% Number of predicates : 5 ( 3 usr; 4 prp; 0-2 aty)
% Number of functors : 11 ( 11 usr; 9 con; 0-2 aty)
% Number of variables : 43 ( 0 sgn)
% Comments :
%------------------------------------------------------------------------------
cnf(c_52,negated_conjecture,
( multiply(sk_c8,sk_c5) = sk_c7
| inverse(sk_c8) = sk_c7 ),
file('/export/starexec/sandbox2/benchmark/theBenchmark.p',prove_this_4) ).
cnf(c_53,negated_conjecture,
( multiply(sk_c4,sk_c8) = sk_c5
| inverse(sk_c8) = sk_c7 ),
file('/export/starexec/sandbox2/benchmark/theBenchmark.p',prove_this_5) ).
cnf(c_54,negated_conjecture,
( inverse(sk_c8) = sk_c7
| inverse(sk_c4) = sk_c8 ),
file('/export/starexec/sandbox2/benchmark/theBenchmark.p',prove_this_6) ).
cnf(c_56,negated_conjecture,
( multiply(sk_c3,sk_c8) = sk_c7
| multiply(sk_c1,sk_c8) = sk_c7 ),
file('/export/starexec/sandbox2/benchmark/theBenchmark.p',prove_this_8) ).
cnf(c_57,negated_conjecture,
( multiply(sk_c1,sk_c8) = sk_c7
| inverse(sk_c3) = sk_c8 ),
file('/export/starexec/sandbox2/benchmark/theBenchmark.p',prove_this_9) ).
cnf(c_62,negated_conjecture,
( multiply(sk_c3,sk_c8) = sk_c7
| inverse(sk_c1) = sk_c8 ),
file('/export/starexec/sandbox2/benchmark/theBenchmark.p',prove_this_14) ).
cnf(c_63,negated_conjecture,
( inverse(sk_c3) = sk_c8
| inverse(sk_c1) = sk_c8 ),
file('/export/starexec/sandbox2/benchmark/theBenchmark.p',prove_this_15) ).
cnf(c_73,negated_conjecture,
( multiply(sk_c8,sk_c7) = sk_c6
| multiply(sk_c2,sk_c7) = sk_c6 ),
file('/export/starexec/sandbox2/benchmark/theBenchmark.p',prove_this_25) ).
cnf(c_79,negated_conjecture,
( multiply(sk_c8,sk_c7) = sk_c6
| inverse(sk_c2) = sk_c7 ),
file('/export/starexec/sandbox2/benchmark/theBenchmark.p',prove_this_31) ).
cnf(c_85,negated_conjecture,
( multiply(X0,sk_c8) != sk_c7
| multiply(X1,sk_c7) != sk_c6
| multiply(X2,sk_c8) != sk_c7
| multiply(X3,sk_c8) != X4
| multiply(sk_c8,X4) != sk_c7
| multiply(sk_c8,sk_c7) != sk_c6
| multiply(sk_c8,sk_c6) != sk_c7
| inverse(X0) != sk_c8
| inverse(X1) != sk_c7
| inverse(X2) != sk_c8
| inverse(X3) != sk_c8
| inverse(sk_c8) != sk_c7 ),
file('/export/starexec/sandbox2/benchmark/theBenchmark.p',prove_this_37) ).
cnf(c_86,plain,
multiply(identity,X0) = X0,
file('/export/starexec/sandbox2/benchmark/Axioms/GRP004-0.ax',left_identity) ).
cnf(c_87,plain,
multiply(inverse(X0),X0) = identity,
file('/export/starexec/sandbox2/benchmark/Axioms/GRP004-0.ax',left_inverse) ).
cnf(c_88,plain,
multiply(multiply(X0,X1),X2) = multiply(X0,multiply(X1,X2)),
file('/export/starexec/sandbox2/benchmark/Axioms/GRP004-0.ax',associativity) ).
cnf(c_89,negated_conjecture,
( multiply(sk_c8,multiply(X0,sk_c8)) != sk_c7
| multiply(X1,sk_c8) != sk_c7
| multiply(X2,sk_c7) != sk_c6
| multiply(X3,sk_c8) != sk_c7
| multiply(sk_c8,sk_c7) != sk_c6
| multiply(sk_c8,sk_c6) != sk_c7
| inverse(X0) != sk_c8
| inverse(X1) != sk_c8
| inverse(X2) != sk_c7
| inverse(X3) != sk_c8
| inverse(sk_c8) != sk_c7 ),
inference(unflattening,[status(thm)],[c_85]) ).
cnf(c_434,negated_conjecture,
( multiply(X0,sk_c7) != sk_c6
| inverse(X0) != sk_c7
| ~ sP0_iProver_split ),
inference(splitting,[splitting(split),new_symbols(definition,[sP0_iProver_split])],[c_89]) ).
cnf(c_435,negated_conjecture,
( multiply(X0,sk_c8) != sk_c7
| inverse(X0) != sk_c8
| ~ sP1_iProver_split ),
inference(splitting,[splitting(split),new_symbols(definition,[sP1_iProver_split])],[c_89]) ).
cnf(c_436,negated_conjecture,
( multiply(sk_c8,multiply(X0,sk_c8)) != sk_c7
| inverse(X0) != sk_c8
| ~ sP2_iProver_split ),
inference(splitting,[splitting(split),new_symbols(definition,[sP2_iProver_split])],[c_89]) ).
cnf(c_437,negated_conjecture,
( multiply(sk_c8,sk_c7) != sk_c6
| multiply(sk_c8,sk_c6) != sk_c7
| inverse(sk_c8) != sk_c7
| sP0_iProver_split
| sP1_iProver_split
| sP2_iProver_split ),
inference(splitting,[splitting(split),new_symbols(definition,[])],[c_89]) ).
cnf(c_445,plain,
( multiply(sk_c8,sk_c7) != sk_c6
| inverse(sk_c8) != sk_c7
| ~ sP0_iProver_split ),
inference(instantiation,[status(thm)],[c_434]) ).
cnf(c_448,plain,
( inverse(sk_c8) != sk_c7
| multiply(sk_c8,sk_c6) != sk_c7
| multiply(sk_c8,sk_c7) != sk_c6
| sP1_iProver_split
| sP2_iProver_split ),
inference(global_subsumption_just,[status(thm)],[c_437,c_445,c_437]) ).
cnf(c_449,negated_conjecture,
( multiply(sk_c8,sk_c7) != sk_c6
| multiply(sk_c8,sk_c6) != sk_c7
| inverse(sk_c8) != sk_c7
| sP1_iProver_split
| sP2_iProver_split ),
inference(renaming,[status(thm)],[c_448]) ).
cnf(c_1051,plain,
multiply(inverse(X0),multiply(X0,X1)) = multiply(identity,X1),
inference(superposition,[status(thm)],[c_87,c_88]) ).
cnf(c_1195,plain,
multiply(inverse(X0),multiply(X0,X1)) = X1,
inference(demodulation,[status(thm)],[c_1051,c_86]) ).
cnf(c_1216,plain,
( multiply(inverse(sk_c4),sk_c5) = sk_c8
| inverse(sk_c8) = sk_c7 ),
inference(superposition,[status(thm)],[c_53,c_1195]) ).
cnf(c_1232,plain,
multiply(inverse(identity),X0) = X0,
inference(superposition,[status(thm)],[c_86,c_1195]) ).
cnf(c_1233,plain,
multiply(inverse(inverse(X0)),identity) = X0,
inference(superposition,[status(thm)],[c_87,c_1195]) ).
cnf(c_1241,plain,
multiply(inverse(inverse(X0)),X1) = multiply(X0,X1),
inference(superposition,[status(thm)],[c_1195,c_1195]) ).
cnf(c_1369,plain,
multiply(X0,identity) = X0,
inference(demodulation,[status(thm)],[c_1233,c_1241]) ).
cnf(c_1377,plain,
inverse(identity) = identity,
inference(superposition,[status(thm)],[c_1369,c_1232]) ).
cnf(c_1404,plain,
multiply(X0,inverse(X0)) = identity,
inference(superposition,[status(thm)],[c_1241,c_87]) ).
cnf(c_1407,plain,
multiply(X0,multiply(inverse(X0),X1)) = X1,
inference(superposition,[status(thm)],[c_1241,c_1195]) ).
cnf(c_1408,plain,
inverse(inverse(X0)) = multiply(X0,identity),
inference(superposition,[status(thm)],[c_1241,c_1369]) ).
cnf(c_1409,plain,
inverse(inverse(X0)) = X0,
inference(light_normalisation,[status(thm)],[c_1408,c_1369]) ).
cnf(c_1424,plain,
inverse(inverse(sk_c8)) = sk_c8,
inference(instantiation,[status(thm)],[c_1409]) ).
cnf(c_1536,plain,
( inverse(inverse(sk_c8)) != sk_c8
| sk_c7 != identity
| ~ sP1_iProver_split ),
inference(superposition,[status(thm)],[c_87,c_435]) ).
cnf(c_1799,plain,
( inverse(sk_c8) != sk_c7
| multiply(sk_c8,sk_c6) != sk_c7
| multiply(sk_c8,sk_c7) != sk_c6
| sP1_iProver_split
| sP2_iProver_split ),
inference(global_subsumption_just,[status(thm)],[c_437,c_445,c_437]) ).
cnf(c_1800,negated_conjecture,
( multiply(sk_c8,sk_c7) != sk_c6
| multiply(sk_c8,sk_c6) != sk_c7
| inverse(sk_c8) != sk_c7
| sP1_iProver_split
| sP2_iProver_split ),
inference(renaming,[status(thm)],[c_1799]) ).
cnf(c_2061,plain,
multiply(inverse(X0),multiply(X0,X1)) = multiply(identity,X1),
inference(superposition,[status(thm)],[c_87,c_88]) ).
cnf(c_2172,plain,
( multiply(sk_c1,sk_c8) = identity
| inverse(sk_c3) = sk_c8 ),
inference(superposition,[status(thm)],[c_63,c_1404]) ).
cnf(c_2309,plain,
( inverse(inverse(sk_c8)) != sk_c8
| sk_c8 != sk_c7
| ~ sP2_iProver_split ),
inference(superposition,[status(thm)],[c_1407,c_436]) ).
cnf(c_2324,plain,
( sk_c8 != sk_c7
| ~ sP2_iProver_split ),
inference(forward_subsumption_resolution,[status(thm)],[c_2309,c_1409]) ).
cnf(c_2986,plain,
( inverse(sk_c3) = sk_c8
| sk_c7 = identity ),
inference(superposition,[status(thm)],[c_2172,c_57]) ).
cnf(c_3010,plain,
( inverse(sk_c8) = sk_c3
| sk_c7 = identity ),
inference(superposition,[status(thm)],[c_2986,c_1409]) ).
cnf(c_3011,plain,
( multiply(sk_c3,sk_c8) = identity
| sk_c7 = identity ),
inference(superposition,[status(thm)],[c_2986,c_1404]) ).
cnf(c_3224,plain,
multiply(inverse(X0),multiply(X0,X1)) = X1,
inference(demodulation,[status(thm)],[c_2061,c_86]) ).
cnf(c_3261,plain,
multiply(inverse(identity),X0) = X0,
inference(superposition,[status(thm)],[c_86,c_3224]) ).
cnf(c_3262,plain,
multiply(inverse(inverse(X0)),identity) = X0,
inference(superposition,[status(thm)],[c_87,c_3224]) ).
cnf(c_3270,plain,
multiply(inverse(inverse(X0)),X1) = multiply(X0,X1),
inference(superposition,[status(thm)],[c_3224,c_3224]) ).
cnf(c_3986,plain,
( multiply(sk_c8,sk_c5) = sk_c8
| inverse(sk_c8) = sk_c7 ),
inference(superposition,[status(thm)],[c_54,c_1216]) ).
cnf(c_4591,plain,
multiply(X0,identity) = X0,
inference(demodulation,[status(thm)],[c_3262,c_3270]) ).
cnf(c_4599,plain,
inverse(identity) = identity,
inference(superposition,[status(thm)],[c_4591,c_3261]) ).
cnf(c_4626,plain,
multiply(X0,inverse(X0)) = identity,
inference(superposition,[status(thm)],[c_3270,c_87]) ).
cnf(c_4630,plain,
inverse(inverse(X0)) = multiply(X0,identity),
inference(superposition,[status(thm)],[c_3270,c_4591]) ).
cnf(c_4631,plain,
inverse(inverse(X0)) = X0,
inference(light_normalisation,[status(thm)],[c_4630,c_4591]) ).
cnf(c_5005,plain,
( inverse(sk_c8) = sk_c7
| sk_c8 = sk_c7 ),
inference(superposition,[status(thm)],[c_3986,c_52]) ).
cnf(c_5064,plain,
( inverse(sk_c7) = sk_c8
| sk_c8 = sk_c7 ),
inference(superposition,[status(thm)],[c_5005,c_1409]) ).
cnf(c_6545,plain,
( inverse(sk_c8) != sk_c7
| multiply(sk_c8,sk_c6) != sk_c7
| multiply(sk_c8,sk_c7) != sk_c6
| sP1_iProver_split
| sP2_iProver_split ),
inference(global_subsumption_just,[status(thm)],[c_437,c_449]) ).
cnf(c_6546,negated_conjecture,
( multiply(sk_c8,sk_c7) != sk_c6
| multiply(sk_c8,sk_c6) != sk_c7
| inverse(sk_c8) != sk_c7
| sP1_iProver_split
| sP2_iProver_split ),
inference(renaming,[status(thm)],[c_6545]) ).
cnf(c_7247,plain,
( multiply(sk_c4,sk_c8) = identity
| inverse(sk_c8) = sk_c7 ),
inference(superposition,[status(thm)],[c_54,c_4626]) ).
cnf(c_7249,plain,
( multiply(sk_c1,sk_c8) = identity
| inverse(sk_c3) = sk_c8 ),
inference(superposition,[status(thm)],[c_63,c_4626]) ).
cnf(c_7805,plain,
( inverse(sk_c1) = sk_c8
| sk_c7 = identity ),
inference(superposition,[status(thm)],[c_3011,c_62]) ).
cnf(c_7895,plain,
( inverse(sk_c8) = sk_c1
| sk_c7 = identity ),
inference(superposition,[status(thm)],[c_7805,c_1409]) ).
cnf(c_10764,plain,
( inverse(sk_c8) = sk_c7
| sk_c5 = identity ),
inference(superposition,[status(thm)],[c_7247,c_53]) ).
cnf(c_10800,plain,
( inverse(sk_c7) = sk_c8
| sk_c5 = identity ),
inference(superposition,[status(thm)],[c_10764,c_4631]) ).
cnf(c_11213,plain,
( sk_c7 = identity
| sk_c3 = sk_c1 ),
inference(superposition,[status(thm)],[c_7895,c_3010]) ).
cnf(c_11440,plain,
( inverse(sk_c3) = sk_c8
| sk_c7 = identity ),
inference(superposition,[status(thm)],[c_7249,c_57]) ).
cnf(c_11584,plain,
( multiply(sk_c8,sk_c3) = identity
| sk_c7 = identity ),
inference(superposition,[status(thm)],[c_11440,c_87]) ).
cnf(c_13279,plain,
( multiply(sk_c3,sk_c8) = sk_c7
| sk_c7 = identity ),
inference(superposition,[status(thm)],[c_11213,c_56]) ).
cnf(c_13558,plain,
sk_c7 = identity,
inference(superposition,[status(thm)],[c_13279,c_3011]) ).
cnf(c_13609,plain,
( inverse(identity) = sk_c8
| sk_c8 = identity ),
inference(demodulation,[status(thm)],[c_5064,c_13558]) ).
cnf(c_13649,plain,
( sk_c8 != identity
| ~ sP2_iProver_split ),
inference(demodulation,[status(thm)],[c_2324,c_13558]) ).
cnf(c_13656,plain,
( multiply(sk_c8,sk_c6) != identity
| multiply(sk_c8,identity) != sk_c6
| inverse(sk_c8) != identity
| sP1_iProver_split
| sP2_iProver_split ),
inference(demodulation,[status(thm)],[c_1800,c_13558]) ).
cnf(c_13874,plain,
sk_c8 = identity,
inference(light_normalisation,[status(thm)],[c_13609,c_1377]) ).
cnf(c_13875,plain,
~ sP2_iProver_split,
inference(backward_subsumption_resolution,[status(thm)],[c_13649,c_13874]) ).
cnf(c_13876,plain,
( multiply(sk_c8,sk_c6) != identity
| multiply(sk_c8,identity) != sk_c6
| inverse(sk_c8) != identity
| sP1_iProver_split ),
inference(backward_subsumption_resolution,[status(thm)],[c_13656,c_13875]) ).
cnf(c_14442,plain,
sk_c7 = identity,
inference(global_subsumption_just,[status(thm)],[c_11584,c_13558]) ).
cnf(c_14453,plain,
( inverse(identity) = sk_c8
| sk_c5 = identity ),
inference(demodulation,[status(thm)],[c_10800,c_14442]) ).
cnf(c_14474,plain,
( multiply(sk_c8,sk_c6) != identity
| multiply(sk_c8,identity) != sk_c6
| inverse(sk_c8) != identity
| sP1_iProver_split
| sP2_iProver_split ),
inference(demodulation,[status(thm)],[c_6546,c_14442]) ).
cnf(c_14482,plain,
( multiply(sk_c8,identity) = sk_c6
| multiply(sk_c2,identity) = sk_c6 ),
inference(demodulation,[status(thm)],[c_73,c_14442]) ).
cnf(c_14497,plain,
( multiply(sk_c8,identity) = sk_c6
| inverse(sk_c2) = identity ),
inference(demodulation,[status(thm)],[c_79,c_14442]) ).
cnf(c_14521,plain,
( sk_c8 = identity
| sk_c5 = identity ),
inference(light_normalisation,[status(thm)],[c_14453,c_4599]) ).
cnf(c_14673,plain,
sk_c8 = identity,
inference(global_subsumption_just,[status(thm)],[c_14521,c_13874]) ).
cnf(c_23275,plain,
( multiply(identity,identity) = sk_c6
| inverse(sk_c2) = identity ),
inference(light_normalisation,[status(thm)],[c_14497,c_14673]) ).
cnf(c_23276,plain,
( inverse(sk_c2) = identity
| sk_c6 = identity ),
inference(demodulation,[status(thm)],[c_23275,c_86]) ).
cnf(c_23283,plain,
( inverse(identity) = sk_c2
| sk_c6 = identity ),
inference(superposition,[status(thm)],[c_23276,c_4631]) ).
cnf(c_23287,plain,
( sk_c6 = identity
| sk_c2 = identity ),
inference(light_normalisation,[status(thm)],[c_23283,c_4599]) ).
cnf(c_24122,plain,
( multiply(sk_c2,identity) = sk_c6
| multiply(identity,identity) = sk_c6 ),
inference(light_normalisation,[status(thm)],[c_14482,c_14673]) ).
cnf(c_24123,plain,
( sk_c6 = sk_c2
| sk_c6 = identity ),
inference(demodulation,[status(thm)],[c_24122,c_86,c_4591]) ).
cnf(c_24130,plain,
sk_c6 = identity,
inference(superposition,[status(thm)],[c_24123,c_23287]) ).
cnf(c_24946,plain,
( multiply(sk_c8,sk_c6) != identity
| multiply(sk_c8,identity) != sk_c6
| inverse(sk_c8) != identity ),
inference(global_subsumption_just,[status(thm)],[c_14474,c_1424,c_1536,c_13558,c_13876]) ).
cnf(c_24948,plain,
( multiply(identity,identity) != identity
| identity != identity ),
inference(light_normalisation,[status(thm)],[c_24946,c_4599,c_14673,c_24130]) ).
cnf(c_24949,plain,
multiply(identity,identity) != identity,
inference(equality_resolution_simp,[status(thm)],[c_24948]) ).
cnf(c_24950,plain,
identity != identity,
inference(demodulation,[status(thm)],[c_24949,c_86]) ).
cnf(c_24951,plain,
$false,
inference(equality_resolution_simp,[status(thm)],[c_24950]) ).
%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.00/0.15 % Problem : GRP372-1 : TPTP v8.1.2. Released v2.5.0.
% 0.00/0.16 % Command : run_iprover %s %d THM
% 0.13/0.36 % Computer : n012.cluster.edu
% 0.13/0.36 % Model : x86_64 x86_64
% 0.13/0.36 % CPU : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.13/0.36 % Memory : 8042.1875MB
% 0.13/0.36 % OS : Linux 3.10.0-693.el7.x86_64
% 0.13/0.36 % CPULimit : 300
% 0.13/0.36 % WCLimit : 300
% 0.13/0.36 % DateTime : Tue Aug 29 00:45:54 EDT 2023
% 0.13/0.36 % CPUTime :
% 0.19/0.50 Running first-order theorem proving
% 0.19/0.50 Running: /export/starexec/sandbox2/solver/bin/run_problem --schedule fof_schedule --no_cores 8 /export/starexec/sandbox2/benchmark/theBenchmark.p 300
% 7.28/1.72 % SZS status Started for theBenchmark.p
% 7.28/1.72 % SZS status Unsatisfiable for theBenchmark.p
% 7.28/1.72
% 7.28/1.72 %---------------- iProver v3.8 (pre SMT-COMP 2023/CASC 2023) ----------------%
% 7.28/1.72
% 7.28/1.72 ------ iProver source info
% 7.28/1.72
% 7.28/1.72 git: date: 2023-05-31 18:12:56 +0000
% 7.28/1.72 git: sha1: 8abddc1f627fd3ce0bcb8b4cbf113b3cc443d7b6
% 7.28/1.72 git: non_committed_changes: false
% 7.28/1.72 git: last_make_outside_of_git: false
% 7.28/1.72
% 7.28/1.72 ------ Parsing...successful
% 7.28/1.72
% 7.28/1.72
% 7.28/1.72
% 7.28/1.72 ------ Preprocessing... sup_sim: 0 sf_s rm: 0 0s sf_e pe_s pe_e
% 7.28/1.72
% 7.28/1.72 ------ Preprocessing... gs_s sp: 4 0s gs_e snvd_s sp: 0 0s snvd_e
% 7.28/1.72
% 7.28/1.72 ------ Preprocessing... sf_s rm: 1 0s sf_e sf_s rm: 0 0s sf_e
% 7.28/1.72 ------ Proving...
% 7.28/1.72 ------ Problem Properties
% 7.28/1.72
% 7.28/1.72
% 7.28/1.72 clauses 43
% 7.28/1.72 conjectures 40
% 7.28/1.72 EPR 0
% 7.28/1.72 Horn 6
% 7.28/1.72 unary 3
% 7.28/1.72 binary 36
% 7.28/1.72 lits 90
% 7.28/1.72 lits eq 84
% 7.28/1.72 fd_pure 0
% 7.28/1.72 fd_pseudo 0
% 7.28/1.72 fd_cond 0
% 7.28/1.72 fd_pseudo_cond 0
% 7.28/1.72 AC symbols 0
% 7.28/1.72
% 7.28/1.72 ------ Schedule dynamic 5 is on
% 7.28/1.72
% 7.28/1.72 ------ Input Options "--resolution_flag false --inst_lit_sel_side none" Time Limit: 10.
% 7.28/1.72
% 7.28/1.72
% 7.28/1.72 ------
% 7.28/1.72 Current options:
% 7.28/1.72 ------
% 7.28/1.72
% 7.28/1.72
% 7.28/1.72
% 7.28/1.72
% 7.28/1.72 ------ Proving...
% 7.28/1.72
% 7.28/1.72
% 7.28/1.72 % SZS status Unsatisfiable for theBenchmark.p
% 7.28/1.72
% 7.28/1.72 % SZS output start CNFRefutation for theBenchmark.p
% See solution above
% 7.28/1.72
% 7.28/1.72
%------------------------------------------------------------------------------