TSTP Solution File: COM003_1 by cvc5---1.0.5
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%------------------------------------------------------------------------------
% File : cvc5---1.0.5
% Problem : COM003_1 : TPTP v8.1.2. Released v5.0.0.
% Transfm : none
% Format : tptp
% Command : do_cvc5 %s %d
% Computer : n024.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 : Wed Aug 30 18:36:52 EDT 2023
% Result : Theorem 0.22s 0.66s
% Output : Proof 0.22s
% Verified :
% SZS Type : -
% Comments :
%------------------------------------------------------------------------------
%----WARNING: Could not form TPTP format derivation
%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.07/0.13 % Problem : COM003_1 : TPTP v8.1.2. Released v5.0.0.
% 0.13/0.15 % Command : do_cvc5 %s %d
% 0.15/0.36 % Computer : n024.cluster.edu
% 0.15/0.36 % Model : x86_64 x86_64
% 0.15/0.36 % CPU : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.15/0.36 % Memory : 8042.1875MB
% 0.15/0.36 % OS : Linux 3.10.0-693.el7.x86_64
% 0.15/0.36 % CPULimit : 300
% 0.15/0.36 % WCLimit : 300
% 0.15/0.36 % DateTime : Tue Aug 29 13:34:53 EDT 2023
% 0.15/0.36 % CPUTime :
% 0.22/0.50 %----Proving TF0_NAR, FOF, or CNF
% 0.22/0.66 ------- convert to smt2 : /export/starexec/sandbox2/tmp/tmp.4MQjSW3s3N/cvc5---1.0.5_30235.p...
% 0.22/0.66 ------- get file name : TPTP file name is COM003_1
% 0.22/0.66 ------- cvc5-fof : /export/starexec/sandbox2/solver/bin/cvc5---1.0.5_30235.smt2...
% 0.22/0.66 --- Run --decision=internal --simplification=none --no-inst-no-entail --no-cbqi --full-saturate-quant at 10...
% 0.22/0.66 % SZS status Theorem for COM003_1
% 0.22/0.66 % SZS output start Proof for COM003_1
% 0.22/0.66 (
% 0.22/0.66 (let ((_let_1 (not (not (exists ((X1 tptp.algorithm)) (forall ((Y1 tptp.program) (Z1 tptp.input)) (tptp.decides X1 Y1 Z1))))))) (let ((_let_2 (=> (exists ((V tptp.program)) (forall ((Y tptp.program)) (let ((_let_1 (tptp.as_input Y))) (let ((_let_2 (tptp.halts2 V _let_1))) (let ((_let_3 (tptp.halts2 Y _let_1))) (and (=> _let_3 (and _let_2 (tptp.outputs V tptp.good))) (=> (not _let_3) (and _let_2 (tptp.outputs V tptp.bad))))))))) (exists ((U tptp.program)) (forall ((Y tptp.program)) (let ((_let_1 (tptp.as_input Y))) (let ((_let_2 (tptp.halts2 U _let_1))) (let ((_let_3 (tptp.halts2 Y _let_1))) (and (=> _let_3 (not _let_2)) (=> (not _let_3) (and _let_2 (tptp.outputs U tptp.bad)))))))))))) (let ((_let_3 (=> (exists ((W tptp.program)) (forall ((Y tptp.program)) (let ((_let_1 (tptp.as_input Y))) (let ((_let_2 (tptp.halts3 W Y _let_1))) (let ((_let_3 (tptp.halts2 Y _let_1))) (and (=> _let_3 (and _let_2 (tptp.outputs W tptp.good))) (=> (not _let_3) (and _let_2 (tptp.outputs W tptp.bad))))))))) (exists ((V tptp.program)) (forall ((Y tptp.program)) (let ((_let_1 (tptp.as_input Y))) (let ((_let_2 (tptp.halts2 V _let_1))) (let ((_let_3 (tptp.halts2 Y _let_1))) (and (=> _let_3 (and _let_2 (tptp.outputs V tptp.good))) (=> (not _let_3) (and _let_2 (tptp.outputs V tptp.bad)))))))))))) (let ((_let_4 (forall ((W tptp.program) (Y tptp.program) (Z tptp.input)) (=> (tptp.decides (tptp.algorithm_of W) Y Z) (forall ((Y tptp.program) (Z tptp.input)) (let ((_let_1 (tptp.halts3 W Y Z))) (let ((_let_2 (tptp.halts2 Y Z))) (and (=> _let_2 (and _let_1 (tptp.outputs W tptp.good))) (=> (not _let_2) (and _let_1 (tptp.outputs W tptp.bad))))))))))) (let ((_let_5 (=> (exists ((X tptp.algorithm)) (forall ((Y tptp.program) (Z tptp.input)) (tptp.decides X Y Z))) (exists ((W tptp.program)) (forall ((Y tptp.program) (Z tptp.input)) (tptp.decides (tptp.algorithm_of W) Y Z)))))) (let ((_let_6 (tptp.algorithm_of SKOLEM_FUN_QUANTIFIERS_SKOLEMIZE_3))) (let ((_let_7 (tptp.decides _let_6 SKOLEM_FUN_QUANTIFIERS_SKOLEMIZE_3 e_tptp.input_10))) (let ((_let_8 (tptp.outputs SKOLEM_FUN_QUANTIFIERS_SKOLEMIZE_3 tptp.bad))) (let ((_let_9 (tptp.as_input SKOLEM_FUN_QUANTIFIERS_SKOLEMIZE_30))) (let ((_let_10 (or (tptp.halts2 SKOLEM_FUN_QUANTIFIERS_SKOLEMIZE_30 _let_9) (and (tptp.halts3 SKOLEM_FUN_QUANTIFIERS_SKOLEMIZE_3 SKOLEM_FUN_QUANTIFIERS_SKOLEMIZE_30 _let_9) _let_8)))) (let ((_let_11 (tptp.outputs SKOLEM_FUN_QUANTIFIERS_SKOLEMIZE_3 tptp.good))) (let ((_let_12 (tptp.as_input SKOLEM_FUN_QUANTIFIERS_SKOLEMIZE_5))) (let ((_let_13 (and (or (not (tptp.halts2 SKOLEM_FUN_QUANTIFIERS_SKOLEMIZE_6 _let_12)) (and (tptp.halts3 SKOLEM_FUN_QUANTIFIERS_SKOLEMIZE_3 SKOLEM_FUN_QUANTIFIERS_SKOLEMIZE_6 _let_12) _let_11)) _let_10))) (let ((_let_14 (not _let_7))) (let ((_let_15 (or _let_14 _let_13))) (let ((_let_16 (forall ((Y tptp.program) (Z tptp.input)) (tptp.decides (tptp.algorithm_of SKOLEM_FUN_QUANTIFIERS_SKOLEMIZE_3) Y Z)))) (let ((_let_17 (forall ((W tptp.program)) (not (forall ((Y tptp.program) (Z tptp.input)) (tptp.decides (tptp.algorithm_of W) Y Z)))))) (let ((_let_18 (forall ((X tptp.algorithm)) (not (forall ((Y tptp.program) (Z tptp.input)) (tptp.decides X Y Z)))))) (let ((_let_19 (not _let_17))) (let ((_let_20 (not _let_18))) (let ((_let_21 (or))) (let ((_let_22 (_let_19))) (let ((_let_23 (_let_16))) (let ((_let_24 (MACRO_RESOLUTION_TRUST (EQ_RESOLVE (IMPLIES_ELIM (EQ_RESOLVE (SCOPE (SKOLEMIZE (ASSUME :args _let_22)) :args _let_22) (REWRITE :args ((=> _let_19 (not (not _let_16))))))) (CONG (MACRO_SR_PRED_INTRO :args ((= (not _let_19) _let_17))) (REFL :args _let_23) :args _let_21)) (MACRO_RESOLUTION_TRUST (EQ_RESOLVE (IMPLIES_ELIM (EQ_RESOLVE (ASSUME :args (_let_5)) (MACRO_SR_EQ_INTRO :args (_let_5 SB_DEFAULT SBA_FIXPOINT)))) (CONG (MACRO_SR_PRED_INTRO :args ((= (not _let_20) _let_18))) (REFL :args _let_22) :args _let_21)) (MACRO_RESOLUTION_TRUST (EQUIV_ELIM1 (ALPHA_EQUIV :args (_let_18 (= Y Y1) (= Z Z1) (= X X1)))) (EQ_RESOLVE (ASSUME :args (_let_1)) (MACRO_SR_EQ_INTRO :args (_let_1 SB_DEFAULT SBA_FIXPOINT))) :args (_let_20 true (forall ((X1 tptp.algorithm)) (not (forall ((Y1 tptp.program) (Z1 tptp.input)) (tptp.decides X1 Y1 Z1)))))) :args (_let_19 true _let_18)) :args (_let_16 true _let_17)))) (let ((_let_25 (ASSUME :args _let_23))) (let ((_let_26 (not _let_13))) (let ((_let_27 (forall ((BOUND_VARIABLE_785 tptp.program)) (let ((_let_1 (tptp.as_input BOUND_VARIABLE_785))) (or (tptp.halts2 BOUND_VARIABLE_785 _let_1) (and (tptp.halts3 SKOLEM_FUN_QUANTIFIERS_SKOLEMIZE_3 BOUND_VARIABLE_785 _let_1) (tptp.outputs SKOLEM_FUN_QUANTIFIERS_SKOLEMIZE_3 tptp.bad))))))) (let ((_let_28 (not _let_10))) (let ((_let_29 (not _let_27))) (let ((_let_30 (forall ((BOUND_VARIABLE_775 tptp.program)) (let ((_let_1 (tptp.as_input BOUND_VARIABLE_775))) (or (not (tptp.halts2 BOUND_VARIABLE_775 _let_1)) (and (tptp.halts3 SKOLEM_FUN_QUANTIFIERS_SKOLEMIZE_3 BOUND_VARIABLE_775 _let_1) (tptp.outputs SKOLEM_FUN_QUANTIFIERS_SKOLEMIZE_3 tptp.good))))))) (let ((_let_31 (not _let_30))) (let ((_let_32 (or _let_31 _let_29))) (let ((_let_33 (forall ((W tptp.program)) (or (not (forall ((BOUND_VARIABLE_775 tptp.program)) (let ((_let_1 (tptp.as_input BOUND_VARIABLE_775))) (or (not (tptp.halts2 BOUND_VARIABLE_775 _let_1)) (and (tptp.halts3 W BOUND_VARIABLE_775 _let_1) (tptp.outputs W tptp.good)))))) (not (forall ((BOUND_VARIABLE_785 tptp.program)) (let ((_let_1 (tptp.as_input BOUND_VARIABLE_785))) (or (tptp.halts2 BOUND_VARIABLE_785 _let_1) (and (tptp.halts3 W BOUND_VARIABLE_785 _let_1) (tptp.outputs W tptp.bad)))))))))) (let ((_let_34 (forall ((V tptp.program)) (or (not (forall ((BOUND_VARIABLE_808 tptp.program)) (let ((_let_1 (tptp.as_input BOUND_VARIABLE_808))) (or (not (tptp.halts2 BOUND_VARIABLE_808 _let_1)) (and (tptp.halts2 V _let_1) (tptp.outputs V tptp.good)))))) (not (forall ((BOUND_VARIABLE_818 tptp.program)) (let ((_let_1 (tptp.as_input BOUND_VARIABLE_818))) (or (tptp.halts2 BOUND_VARIABLE_818 _let_1) (and (tptp.halts2 V _let_1) (tptp.outputs V tptp.bad)))))))))) (let ((_let_35 (forall ((V tptp.program)) (or (not (forall ((BOUND_VARIABLE_843 tptp.program)) (let ((_let_1 (tptp.as_input BOUND_VARIABLE_843))) (or (not (tptp.halts2 BOUND_VARIABLE_843 _let_1)) (and (tptp.halts2 V _let_1) (tptp.outputs V tptp.good)))))) (not (forall ((BOUND_VARIABLE_853 tptp.program)) (let ((_let_1 (tptp.as_input BOUND_VARIABLE_853))) (or (tptp.halts2 BOUND_VARIABLE_853 _let_1) (and (tptp.halts2 V _let_1) (tptp.outputs V tptp.bad)))))))))) (let ((_let_36 (forall ((U tptp.program)) (or (not (forall ((BOUND_VARIABLE_876 tptp.program)) (let ((_let_1 (tptp.as_input BOUND_VARIABLE_876))) (or (not (tptp.halts2 BOUND_VARIABLE_876 _let_1)) (not (tptp.halts2 U _let_1)))))) (not (forall ((BOUND_VARIABLE_886 tptp.program)) (let ((_let_1 (tptp.as_input BOUND_VARIABLE_886))) (or (tptp.halts2 BOUND_VARIABLE_886 _let_1) (and (tptp.halts2 U _let_1) (tptp.outputs U tptp.bad)))))))))) (let ((_let_37 (forall ((BOUND_VARIABLE_886 tptp.program)) (let ((_let_1 (tptp.as_input BOUND_VARIABLE_886))) (or (tptp.halts2 BOUND_VARIABLE_886 _let_1) (and (tptp.halts2 SKOLEM_FUN_QUANTIFIERS_SKOLEMIZE_6 _let_1) (tptp.outputs SKOLEM_FUN_QUANTIFIERS_SKOLEMIZE_6 tptp.bad))))))) (let ((_let_38 (not _let_37))) (let ((_let_39 (forall ((BOUND_VARIABLE_876 tptp.program)) (let ((_let_1 (tptp.as_input BOUND_VARIABLE_876))) (or (not (tptp.halts2 BOUND_VARIABLE_876 _let_1)) (not (tptp.halts2 SKOLEM_FUN_QUANTIFIERS_SKOLEMIZE_6 _let_1))))))) (let ((_let_40 (not _let_39))) (let ((_let_41 (or _let_40 _let_38))) (let ((_let_42 (tptp.halts2 SKOLEM_FUN_QUANTIFIERS_SKOLEMIZE_6 (tptp.as_input SKOLEM_FUN_QUANTIFIERS_SKOLEMIZE_6)))) (let ((_let_43 (and _let_42 (tptp.outputs SKOLEM_FUN_QUANTIFIERS_SKOLEMIZE_6 tptp.bad)))) (let ((_let_44 (or _let_42 _let_43))) (let ((_let_45 (REFL :args (_let_41)))) (let ((_let_46 (_let_39))) (let ((_let_47 (SKOLEM_FUN_QUANTIFIERS_SKOLEMIZE_6 QUANTIFIERS_INST_ENUM))) (let ((_let_48 (_let_37))) (let ((_let_49 (not _let_36))) (let ((_let_50 (_let_49))) (let ((_let_51 (_let_33))) (let ((_let_52 (tptp.as_input SKOLEM_FUN_QUANTIFIERS_SKOLEMIZE_31))) (let ((_let_53 (or (not (tptp.halts2 SKOLEM_FUN_QUANTIFIERS_SKOLEMIZE_31 _let_52)) (and (tptp.halts3 SKOLEM_FUN_QUANTIFIERS_SKOLEMIZE_3 SKOLEM_FUN_QUANTIFIERS_SKOLEMIZE_31 _let_52) _let_11)))) (let ((_let_54 (and _let_53 (or (tptp.halts2 SKOLEM_FUN_QUANTIFIERS_SKOLEMIZE_5 e_tptp.input_10) (and (tptp.halts3 SKOLEM_FUN_QUANTIFIERS_SKOLEMIZE_3 SKOLEM_FUN_QUANTIFIERS_SKOLEMIZE_5 e_tptp.input_10) _let_8))))) (let ((_let_55 (tptp.decides _let_6 SKOLEM_FUN_QUANTIFIERS_SKOLEMIZE_6 _let_12))) (let ((_let_56 (not _let_55))) (let ((_let_57 (or _let_56 _let_54))) (let ((_let_58 (forall ((W tptp.program) (Y tptp.program) (Z tptp.input) (BOUND_VARIABLE_760 tptp.input) (BOUND_VARIABLE_758 tptp.program) (BOUND_VARIABLE_751 tptp.input) (BOUND_VARIABLE_749 tptp.program)) (or (not (tptp.decides (tptp.algorithm_of W) Y Z)) (and (or (not (tptp.halts2 BOUND_VARIABLE_749 BOUND_VARIABLE_751)) (and (tptp.halts3 W BOUND_VARIABLE_749 BOUND_VARIABLE_751) (tptp.outputs W tptp.good))) (or (tptp.halts2 BOUND_VARIABLE_758 BOUND_VARIABLE_760) (and (tptp.halts3 W BOUND_VARIABLE_758 BOUND_VARIABLE_760) (tptp.outputs W tptp.bad)))))))) (let ((_let_59 (EQ_RESOLVE (ASSUME :args (_let_4)) (MACRO_SR_EQ_INTRO :args (_let_4 SB_DEFAULT SBA_FIXPOINT))))) (let ((_let_60 (_let_58))) (let ((_let_61 ((not (= (tptp.decides (tptp.algorithm_of W) Y Z) false)) (tptp.halts2 BOUND_VARIABLE_749 BOUND_VARIABLE_751) (tptp.halts2 BOUND_VARIABLE_758 BOUND_VARIABLE_760)))) (let ((_let_62 (_let_31))) (let ((_let_63 (_let_29))) (SCOPE (SCOPE (MACRO_RESOLUTION_TRUST (REORDERING (CNF_OR_POS :args (_let_15)) :args ((or _let_14 _let_13 (not _let_15)))) (MACRO_RESOLUTION_TRUST (IMPLIES_ELIM (SCOPE (INSTANTIATE _let_59 :args (SKOLEM_FUN_QUANTIFIERS_SKOLEMIZE_3 SKOLEM_FUN_QUANTIFIERS_SKOLEMIZE_3 e_tptp.input_10 _let_9 SKOLEM_FUN_QUANTIFIERS_SKOLEMIZE_30 _let_12 SKOLEM_FUN_QUANTIFIERS_SKOLEMIZE_6 QUANTIFIERS_INST_E_MATCHING _let_61)) :args _let_60)) _let_59 :args (_let_15 false _let_58)) (MACRO_RESOLUTION_TRUST (REORDERING (CNF_AND_POS :args (_let_13 1)) :args ((or _let_10 _let_26))) (MACRO_RESOLUTION_TRUST (EQ_RESOLVE (IMPLIES_ELIM (SCOPE (SKOLEMIZE (ASSUME :args _let_63)) :args _let_63)) (CONG (MACRO_SR_PRED_INTRO :args ((= (not _let_29) _let_27))) (REFL :args (_let_28)) :args _let_21)) (MACRO_RESOLUTION_TRUST (REORDERING (CNF_OR_POS :args (_let_32)) :args ((or _let_31 _let_29 (not _let_32)))) (MACRO_RESOLUTION_TRUST (EQ_RESOLVE (IMPLIES_ELIM (SCOPE (SKOLEMIZE (ASSUME :args _let_62)) :args _let_62)) (CONG (MACRO_SR_PRED_INTRO :args ((= (not _let_31) _let_30))) (REFL :args ((not _let_53))) :args _let_21)) (MACRO_RESOLUTION_TRUST (REORDERING (CNF_AND_POS :args (_let_54 0)) :args ((or _let_53 (not _let_54)))) (MACRO_RESOLUTION_TRUST (REORDERING (CNF_OR_POS :args (_let_57)) :args ((or _let_56 _let_54 (not _let_57)))) (MACRO_RESOLUTION_TRUST (IMPLIES_ELIM (SCOPE (INSTANTIATE _let_25 :args (SKOLEM_FUN_QUANTIFIERS_SKOLEMIZE_6 _let_12 QUANTIFIERS_INST_ENUM)) :args _let_23)) _let_24 :args (_let_55 false _let_16)) (MACRO_RESOLUTION_TRUST (IMPLIES_ELIM (SCOPE (INSTANTIATE _let_59 :args (SKOLEM_FUN_QUANTIFIERS_SKOLEMIZE_3 SKOLEM_FUN_QUANTIFIERS_SKOLEMIZE_6 _let_12 e_tptp.input_10 SKOLEM_FUN_QUANTIFIERS_SKOLEMIZE_5 _let_52 SKOLEM_FUN_QUANTIFIERS_SKOLEMIZE_31 QUANTIFIERS_INST_E_MATCHING _let_61)) :args _let_60)) _let_59 :args (_let_57 false _let_58)) :args (_let_54 false _let_55 false _let_57)) :args (_let_53 false _let_54)) :args (_let_30 false _let_53)) (MACRO_RESOLUTION_TRUST (IMPLIES_ELIM (SCOPE (INSTANTIATE (ASSUME :args _let_51) :args (SKOLEM_FUN_QUANTIFIERS_SKOLEMIZE_3 QUANTIFIERS_INST_ENUM)) :args _let_51)) (MACRO_RESOLUTION_TRUST (EQ_RESOLVE (IMPLIES_ELIM (EQ_RESOLVE (ASSUME :args (_let_3)) (MACRO_SR_EQ_INTRO :args (_let_3 SB_DEFAULT SBA_FIXPOINT)))) (CONG (MACRO_SR_PRED_INTRO :args ((= (not (not _let_33)) _let_33))) (REFL :args ((not _let_34))) :args _let_21)) (MACRO_RESOLUTION_TRUST (EQUIV_ELIM2 (ALPHA_EQUIV :args (_let_34 (= BOUND_VARIABLE_808 BOUND_VARIABLE_843) (= V V) (= BOUND_VARIABLE_818 BOUND_VARIABLE_853)))) (MACRO_RESOLUTION_TRUST (EQ_RESOLVE (IMPLIES_ELIM (EQ_RESOLVE (ASSUME :args (_let_2)) (MACRO_SR_EQ_INTRO :args (_let_2 SB_DEFAULT SBA_FIXPOINT)))) (CONG (MACRO_SR_PRED_INTRO :args ((= (not (not _let_35)) _let_35))) (REFL :args _let_50) :args _let_21)) (MACRO_RESOLUTION_TRUST (EQ_RESOLVE (IMPLIES_ELIM (SCOPE (SKOLEMIZE (ASSUME :args _let_50)) :args _let_50)) (CONG (MACRO_SR_PRED_INTRO :args ((= (not _let_49) _let_36))) (REFL :args ((not _let_41))) :args _let_21)) (MACRO_RESOLUTION_TRUST (REORDERING (CNF_OR_POS :args (_let_44)) :args ((or _let_42 _let_43 (not _let_44)))) (REORDERING (CNF_AND_POS :args (_let_43 0)) :args ((or _let_42 (not _let_43)))) (IMPLIES_ELIM (SCOPE (INSTANTIATE (ASSUME :args _let_48) :args _let_47) :args _let_48)) (IMPLIES_ELIM (MACRO_SR_PRED_ELIM (SCOPE (INSTANTIATE (ASSUME :args _let_46) :args _let_47) :args _let_46))) (REORDERING (EQ_RESOLVE (CNF_OR_NEG :args (_let_41 1)) (CONG _let_45 (MACRO_SR_PRED_INTRO :args ((= (not _let_38) _let_37))) :args _let_21)) :args ((or _let_37 _let_41))) (REORDERING (EQ_RESOLVE (CNF_OR_NEG :args (_let_41 0)) (CONG _let_45 (MACRO_SR_PRED_INTRO :args ((= (not _let_40) _let_39))) :args _let_21)) :args ((or _let_39 _let_41))) :args (_let_41 true _let_43 false _let_44 true _let_42 false _let_37 false _let_39)) :args (_let_36 false _let_41)) :args (_let_35 false _let_36)) :args (_let_34 false _let_35)) :args (_let_33 false _let_34)) :args (_let_32 false _let_33)) :args (_let_29 false _let_30 false _let_32)) :args (_let_28 true _let_27)) :args (_let_26 true _let_10)) (MACRO_RESOLUTION_TRUST (IMPLIES_ELIM (SCOPE (INSTANTIATE _let_25 :args (SKOLEM_FUN_QUANTIFIERS_SKOLEMIZE_3 e_tptp.input_10 QUANTIFIERS_INST_ENUM)) :args _let_23)) _let_24 :args (_let_7 false _let_16)) :args (false false _let_15 true _let_13 false _let_7)) :args (_let_5 _let_4 _let_3 _let_2 _let_1 true))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))
% 0.22/0.67 )
% 0.22/0.67 % SZS output end Proof for COM003_1
% 0.22/0.67 % cvc5---1.0.5 exiting
% 0.22/0.67 % cvc5---1.0.5 exiting
%------------------------------------------------------------------------------