TSTP Solution File: NUM925+4 by E---3.1

View Problem - Process Solution

%------------------------------------------------------------------------------
% File     : E---3.1
% Problem  : NUM925+4 : TPTP v8.1.2. Released v5.3.0.
% Transfm  : none
% Format   : tptp:raw
% Command  : run_E %s %d THM

% Computer : n023.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 : 2400s
% WCLimit  : 300s
% DateTime : Tue Oct 10 18:58:00 EDT 2023

% Result   : Theorem 2.78s 2.54s
% Output   : CNFRefutation 2.78s
% Verified : 
% SZS Type : Refutation
%            Derivation depth      :    7
%            Number of leaves      :   10
% Syntax   : Number of formulae    :   38 (  27 unt;   0 def)
%            Number of atoms       :   58 (  25 equ)
%            Maximal formula atoms :    5 (   1 avg)
%            Number of connectives :   41 (  21   ~;  13   |;   1   &)
%                                         (   0 <=>;   6  =>;   0  <=;   0 <~>)
%            Maximal formula depth :    8 (   3 avg)
%            Maximal term depth    :    5 (   2 avg)
%            Number of predicates  :    4 (   2 usr;   1 prp; 0-2 aty)
%            Number of functors    :   20 (  20 usr;  13 con; 0-2 aty)
%            Number of variables   :   44 (   4 sgn;  28   !;   0   ?)

% Comments : 
%------------------------------------------------------------------------------
fof(conj_0,conjecture,
    hAPP_nat_int(hAPP_int_fun_nat_int(power_power_int,hAPP_int_int(hAPP_int_fun_int_int(plus_plus_int,one_one_int),hAPP_nat_int(semiri1621563631at_int,n))),hAPP_int_nat(number_number_of_nat,hAPP_int_int(bit0,hAPP_int_int(bit1,pls)))) != zero_zero_int,
    file('/export/starexec/sandbox2/tmp/tmp.iQsUMNHE9f/E---3.1_11833.p',conj_0) ).

fof(fact_1907_comm__semiring__1__class_Onormalizing__semiring__rules_I29_J,axiom,
    ! [X563] : hAPP_int_int(hAPP_int_fun_int_int(times_times_int,X563),X563) = hAPP_nat_int(hAPP_int_fun_nat_int(power_power_int,X563),hAPP_int_nat(number_number_of_nat,hAPP_int_int(bit0,hAPP_int_int(bit1,pls)))),
    file('/export/starexec/sandbox2/tmp/tmp.iQsUMNHE9f/E---3.1_11833.p',fact_1907_comm__semiring__1__class_Onormalizing__semiring__rules_I29_J) ).

fof(fact_1984_leD,axiom,
    ! [X585,X586] :
      ( hBOOL(hAPP_int_bool(hAPP_i1948725293t_bool(ord_less_eq_int,X585),X586))
     => ~ hBOOL(hAPP_int_bool(hAPP_i1948725293t_bool(ord_less_int,X586),X585)) ),
    file('/export/starexec/sandbox2/tmp/tmp.iQsUMNHE9f/E---3.1_11833.p',fact_1984_leD) ).

fof(fact_151_Pls__def,axiom,
    pls = zero_zero_int,
    file('/export/starexec/sandbox2/tmp/tmp.iQsUMNHE9f/E---3.1_11833.p',fact_151_Pls__def) ).

fof(fact_420_less__add__one,axiom,
    ! [X82] : hBOOL(hAPP_int_bool(hAPP_i1948725293t_bool(ord_less_int,X82),hAPP_int_int(hAPP_int_fun_int_int(plus_plus_int,X82),one_one_int))),
    file('/export/starexec/sandbox2/tmp/tmp.iQsUMNHE9f/E---3.1_11833.p',fact_420_less__add__one) ).

fof(fact_1130_no__zero__divisors,axiom,
    ! [X292,X293] :
      ( ( is_int(X292)
        & is_int(X293) )
     => ( X293 != zero_zero_int
       => ( X292 != zero_zero_int
         => hAPP_int_int(hAPP_int_fun_int_int(times_times_int,X293),X292) != zero_zero_int ) ) ),
    file('/export/starexec/sandbox2/tmp/tmp.iQsUMNHE9f/E---3.1_11833.p',fact_1130_no__zero__divisors) ).

fof(fact_102_zadd__commute,axiom,
    ! [X18,X15] : hAPP_int_int(hAPP_int_fun_int_int(plus_plus_int,X18),X15) = hAPP_int_int(hAPP_int_fun_int_int(plus_plus_int,X15),X18),
    file('/export/starexec/sandbox2/tmp/tmp.iQsUMNHE9f/E---3.1_11833.p',fact_102_zadd__commute) ).

fof(gsy_c_hAPP_000tc__Int__Oint_000tc__Int__Oint,hypothesis,
    ! [X1,X2] :
      ( is_int(X2)
     => is_int(hAPP_int_int(X1,X2)) ),
    file('/export/starexec/sandbox2/tmp/tmp.iQsUMNHE9f/E---3.1_11833.p',gsy_c_hAPP_000tc__Int__Oint_000tc__Int__Oint) ).

fof(gsy_c_hAPP_000tc__Nat__Onat_000tc__Int__Oint,hypothesis,
    ! [X1,X2] : is_int(hAPP_nat_int(X1,X2)),
    file('/export/starexec/sandbox2/tmp/tmp.iQsUMNHE9f/E---3.1_11833.p',gsy_c_hAPP_000tc__Nat__Onat_000tc__Int__Oint) ).

fof(fact_718_of__nat__0__le__iff,axiom,
    ! [X164] : hBOOL(hAPP_int_bool(hAPP_i1948725293t_bool(ord_less_eq_int,zero_zero_int),hAPP_nat_int(semiri1621563631at_int,X164))),
    file('/export/starexec/sandbox2/tmp/tmp.iQsUMNHE9f/E---3.1_11833.p',fact_718_of__nat__0__le__iff) ).

fof(c_0_10,negated_conjecture,
    hAPP_nat_int(hAPP_int_fun_nat_int(power_power_int,hAPP_int_int(hAPP_int_fun_int_int(plus_plus_int,one_one_int),hAPP_nat_int(semiri1621563631at_int,n))),hAPP_int_nat(number_number_of_nat,hAPP_int_int(bit0,hAPP_int_int(bit1,pls)))) = zero_zero_int,
    inference(fof_simplification,[status(thm)],[inference(assume_negation,[status(cth)],[conj_0])]) ).

fof(c_0_11,plain,
    ! [X1205] : hAPP_int_int(hAPP_int_fun_int_int(times_times_int,X1205),X1205) = hAPP_nat_int(hAPP_int_fun_nat_int(power_power_int,X1205),hAPP_int_nat(number_number_of_nat,hAPP_int_int(bit0,hAPP_int_int(bit1,pls)))),
    inference(variable_rename,[status(thm)],[fact_1907_comm__semiring__1__class_Onormalizing__semiring__rules_I29_J]) ).

fof(c_0_12,plain,
    ! [X585,X586] :
      ( hBOOL(hAPP_int_bool(hAPP_i1948725293t_bool(ord_less_eq_int,X585),X586))
     => ~ hBOOL(hAPP_int_bool(hAPP_i1948725293t_bool(ord_less_int,X586),X585)) ),
    inference(fof_simplification,[status(thm)],[fact_1984_leD]) ).

cnf(c_0_13,negated_conjecture,
    hAPP_nat_int(hAPP_int_fun_nat_int(power_power_int,hAPP_int_int(hAPP_int_fun_int_int(plus_plus_int,one_one_int),hAPP_nat_int(semiri1621563631at_int,n))),hAPP_int_nat(number_number_of_nat,hAPP_int_int(bit0,hAPP_int_int(bit1,pls)))) = zero_zero_int,
    inference(split_conjunct,[status(thm)],[c_0_10]) ).

cnf(c_0_14,plain,
    pls = zero_zero_int,
    inference(split_conjunct,[status(thm)],[fact_151_Pls__def]) ).

cnf(c_0_15,plain,
    hAPP_int_int(hAPP_int_fun_int_int(times_times_int,X1),X1) = hAPP_nat_int(hAPP_int_fun_nat_int(power_power_int,X1),hAPP_int_nat(number_number_of_nat,hAPP_int_int(bit0,hAPP_int_int(bit1,pls)))),
    inference(split_conjunct,[status(thm)],[c_0_11]) ).

fof(c_0_16,plain,
    ! [X1683,X1684] :
      ( ~ hBOOL(hAPP_int_bool(hAPP_i1948725293t_bool(ord_less_eq_int,X1683),X1684))
      | ~ hBOOL(hAPP_int_bool(hAPP_i1948725293t_bool(ord_less_int,X1684),X1683)) ),
    inference(variable_rename,[status(thm)],[inference(fof_nnf,[status(thm)],[c_0_12])]) ).

fof(c_0_17,plain,
    ! [X1029] : hBOOL(hAPP_int_bool(hAPP_i1948725293t_bool(ord_less_int,X1029),hAPP_int_int(hAPP_int_fun_int_int(plus_plus_int,X1029),one_one_int))),
    inference(variable_rename,[status(thm)],[fact_420_less__add__one]) ).

fof(c_0_18,plain,
    ! [X946,X947] :
      ( ~ is_int(X946)
      | ~ is_int(X947)
      | X947 = zero_zero_int
      | X946 = zero_zero_int
      | hAPP_int_int(hAPP_int_fun_int_int(times_times_int,X947),X946) != zero_zero_int ),
    inference(variable_rename,[status(thm)],[inference(fof_nnf,[status(thm)],[fact_1130_no__zero__divisors])]) ).

cnf(c_0_19,negated_conjecture,
    hAPP_nat_int(hAPP_int_fun_nat_int(power_power_int,hAPP_int_int(hAPP_int_fun_int_int(plus_plus_int,one_one_int),hAPP_nat_int(semiri1621563631at_int,n))),hAPP_int_nat(number_number_of_nat,hAPP_int_int(bit0,hAPP_int_int(bit1,zero_zero_int)))) = zero_zero_int,
    inference(rw,[status(thm)],[c_0_13,c_0_14]) ).

cnf(c_0_20,plain,
    hAPP_int_int(hAPP_int_fun_int_int(times_times_int,X1),X1) = hAPP_nat_int(hAPP_int_fun_nat_int(power_power_int,X1),hAPP_int_nat(number_number_of_nat,hAPP_int_int(bit0,hAPP_int_int(bit1,zero_zero_int)))),
    inference(rw,[status(thm)],[c_0_15,c_0_14]) ).

cnf(c_0_21,plain,
    ( ~ hBOOL(hAPP_int_bool(hAPP_i1948725293t_bool(ord_less_eq_int,X1),X2))
    | ~ hBOOL(hAPP_int_bool(hAPP_i1948725293t_bool(ord_less_int,X2),X1)) ),
    inference(split_conjunct,[status(thm)],[c_0_16]) ).

cnf(c_0_22,plain,
    hBOOL(hAPP_int_bool(hAPP_i1948725293t_bool(ord_less_int,X1),hAPP_int_int(hAPP_int_fun_int_int(plus_plus_int,X1),one_one_int))),
    inference(split_conjunct,[status(thm)],[c_0_17]) ).

fof(c_0_23,plain,
    ! [X1346,X1347] : hAPP_int_int(hAPP_int_fun_int_int(plus_plus_int,X1346),X1347) = hAPP_int_int(hAPP_int_fun_int_int(plus_plus_int,X1347),X1346),
    inference(variable_rename,[status(thm)],[fact_102_zadd__commute]) ).

cnf(c_0_24,plain,
    ( X2 = zero_zero_int
    | X1 = zero_zero_int
    | ~ is_int(X1)
    | ~ is_int(X2)
    | hAPP_int_int(hAPP_int_fun_int_int(times_times_int,X2),X1) != zero_zero_int ),
    inference(split_conjunct,[status(thm)],[c_0_18]) ).

cnf(c_0_25,negated_conjecture,
    hAPP_int_int(hAPP_int_fun_int_int(times_times_int,hAPP_int_int(hAPP_int_fun_int_int(plus_plus_int,one_one_int),hAPP_nat_int(semiri1621563631at_int,n))),hAPP_int_int(hAPP_int_fun_int_int(plus_plus_int,one_one_int),hAPP_nat_int(semiri1621563631at_int,n))) = zero_zero_int,
    inference(rw,[status(thm)],[c_0_19,c_0_20]) ).

fof(c_0_26,hypothesis,
    ! [X875,X876] :
      ( ~ is_int(X876)
      | is_int(hAPP_int_int(X875,X876)) ),
    inference(variable_rename,[status(thm)],[inference(fof_nnf,[status(thm)],[gsy_c_hAPP_000tc__Int__Oint_000tc__Int__Oint])]) ).

fof(c_0_27,hypothesis,
    ! [X877,X878] : is_int(hAPP_nat_int(X877,X878)),
    inference(variable_rename,[status(thm)],[gsy_c_hAPP_000tc__Nat__Onat_000tc__Int__Oint]) ).

cnf(c_0_28,plain,
    ~ hBOOL(hAPP_int_bool(hAPP_i1948725293t_bool(ord_less_eq_int,hAPP_int_int(hAPP_int_fun_int_int(plus_plus_int,X1),one_one_int)),X1)),
    inference(spm,[status(thm)],[c_0_21,c_0_22]) ).

cnf(c_0_29,plain,
    hAPP_int_int(hAPP_int_fun_int_int(plus_plus_int,X1),X2) = hAPP_int_int(hAPP_int_fun_int_int(plus_plus_int,X2),X1),
    inference(split_conjunct,[status(thm)],[c_0_23]) ).

cnf(c_0_30,negated_conjecture,
    ( hAPP_int_int(hAPP_int_fun_int_int(plus_plus_int,one_one_int),hAPP_nat_int(semiri1621563631at_int,n)) = zero_zero_int
    | ~ is_int(hAPP_int_int(hAPP_int_fun_int_int(plus_plus_int,one_one_int),hAPP_nat_int(semiri1621563631at_int,n))) ),
    inference(spm,[status(thm)],[c_0_24,c_0_25]) ).

cnf(c_0_31,hypothesis,
    ( is_int(hAPP_int_int(X2,X1))
    | ~ is_int(X1) ),
    inference(split_conjunct,[status(thm)],[c_0_26]) ).

cnf(c_0_32,hypothesis,
    is_int(hAPP_nat_int(X1,X2)),
    inference(split_conjunct,[status(thm)],[c_0_27]) ).

fof(c_0_33,plain,
    ! [X1278] : hBOOL(hAPP_int_bool(hAPP_i1948725293t_bool(ord_less_eq_int,zero_zero_int),hAPP_nat_int(semiri1621563631at_int,X1278))),
    inference(variable_rename,[status(thm)],[fact_718_of__nat__0__le__iff]) ).

cnf(c_0_34,plain,
    ~ hBOOL(hAPP_int_bool(hAPP_i1948725293t_bool(ord_less_eq_int,hAPP_int_int(hAPP_int_fun_int_int(plus_plus_int,one_one_int),X1)),X1)),
    inference(spm,[status(thm)],[c_0_28,c_0_29]) ).

cnf(c_0_35,hypothesis,
    hAPP_int_int(hAPP_int_fun_int_int(plus_plus_int,one_one_int),hAPP_nat_int(semiri1621563631at_int,n)) = zero_zero_int,
    inference(cn,[status(thm)],[inference(rw,[status(thm)],[inference(spm,[status(thm)],[c_0_30,c_0_31]),c_0_32])]) ).

cnf(c_0_36,plain,
    hBOOL(hAPP_int_bool(hAPP_i1948725293t_bool(ord_less_eq_int,zero_zero_int),hAPP_nat_int(semiri1621563631at_int,X1))),
    inference(split_conjunct,[status(thm)],[c_0_33]) ).

cnf(c_0_37,hypothesis,
    $false,
    inference(cn,[status(thm)],[inference(rw,[status(thm)],[inference(spm,[status(thm)],[c_0_34,c_0_35]),c_0_36])]),
    [proof] ).

%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.93/0.95  % Problem    : NUM925+4 : TPTP v8.1.2. Released v5.3.0.
% 0.93/0.96  % Command    : run_E %s %d THM
% 0.97/1.17  % Computer : n023.cluster.edu
% 0.97/1.17  % Model    : x86_64 x86_64
% 0.97/1.17  % CPU      : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.97/1.17  % Memory   : 8042.1875MB
% 0.97/1.17  % OS       : Linux 3.10.0-693.el7.x86_64
% 0.97/1.17  % CPULimit   : 2400
% 0.97/1.17  % WCLimit    : 300
% 0.97/1.17  % DateTime   : Mon Oct  2 14:59:38 EDT 2023
% 0.97/1.17  % CPUTime    : 
% 1.96/2.16  Running first-order theorem proving
% 1.96/2.16  Running: /export/starexec/sandbox2/solver/bin/eprover --delete-bad-limit=2000000000 --definitional-cnf=24 -s --print-statistics -R --print-version --proof-object --auto-schedule=8 --cpu-limit=300 /export/starexec/sandbox2/tmp/tmp.iQsUMNHE9f/E---3.1_11833.p
% 2.78/2.54  # Version: 3.1pre001
% 2.78/2.54  # Preprocessing class: FMLLSMLLSSSNFFN.
% 2.78/2.54  # Scheduled 4 strats onto 8 cores with 300 seconds (2400 total)
% 2.78/2.54  # Starting new_bool_3 with 900s (3) cores
% 2.78/2.54  # Starting new_bool_1 with 900s (3) cores
% 2.78/2.54  # Starting sh5l with 300s (1) cores
% 2.78/2.54  # Starting G-E--_301_C18_F1_URBAN_S5PRR_RG_S0Y with 300s (1) cores
% 2.78/2.54  # G-E--_301_C18_F1_URBAN_S5PRR_RG_S0Y with pid 11914 completed with status 0
% 2.78/2.54  # Result found by G-E--_301_C18_F1_URBAN_S5PRR_RG_S0Y
% 2.78/2.54  # Preprocessing class: FMLLSMLLSSSNFFN.
% 2.78/2.54  # Scheduled 4 strats onto 8 cores with 300 seconds (2400 total)
% 2.78/2.54  # Starting new_bool_3 with 900s (3) cores
% 2.78/2.54  # Starting new_bool_1 with 900s (3) cores
% 2.78/2.54  # Starting sh5l with 300s (1) cores
% 2.78/2.54  # Starting G-E--_301_C18_F1_URBAN_S5PRR_RG_S0Y with 300s (1) cores
% 2.78/2.54  # SinE strategy is gf120_h_gu_RUU_F100_L00500
% 2.78/2.54  # Search class: FGHSM-FSLM31-DFFFFFNN
% 2.78/2.54  # Scheduled 6 strats onto 1 cores with 300 seconds (300 total)
% 2.78/2.54  # Starting G-E--_208_C18C--_F1_SE_CS_SP_PS_S5PRR_RG_S04AN with 136s (1) cores
% 2.78/2.54  # G-E--_208_C18C--_F1_SE_CS_SP_PS_S5PRR_RG_S04AN with pid 11915 completed with status 0
% 2.78/2.54  # Result found by G-E--_208_C18C--_F1_SE_CS_SP_PS_S5PRR_RG_S04AN
% 2.78/2.54  # Preprocessing class: FMLLSMLLSSSNFFN.
% 2.78/2.54  # Scheduled 4 strats onto 8 cores with 300 seconds (2400 total)
% 2.78/2.54  # Starting new_bool_3 with 900s (3) cores
% 2.78/2.54  # Starting new_bool_1 with 900s (3) cores
% 2.78/2.54  # Starting sh5l with 300s (1) cores
% 2.78/2.54  # Starting G-E--_301_C18_F1_URBAN_S5PRR_RG_S0Y with 300s (1) cores
% 2.78/2.54  # SinE strategy is gf120_h_gu_RUU_F100_L00500
% 2.78/2.54  # Search class: FGHSM-FSLM31-DFFFFFNN
% 2.78/2.54  # Scheduled 6 strats onto 1 cores with 300 seconds (300 total)
% 2.78/2.54  # Starting G-E--_208_C18C--_F1_SE_CS_SP_PS_S5PRR_RG_S04AN with 136s (1) cores
% 2.78/2.54  # Preprocessing time       : 0.019 s
% 2.78/2.54  # Presaturation interreduction done
% 2.78/2.54  
% 2.78/2.54  # Proof found!
% 2.78/2.54  # SZS status Theorem
% 2.78/2.54  # SZS output start CNFRefutation
% See solution above
% 2.78/2.54  # Parsed axioms                        : 5487
% 2.78/2.54  # Removed by relevancy pruning/SinE    : 4986
% 2.78/2.54  # Initial clauses                      : 706
% 2.78/2.54  # Removed in clause preprocessing      : 42
% 2.78/2.54  # Initial clauses in saturation        : 664
% 2.78/2.54  # Processed clauses                    : 1624
% 2.78/2.54  # ...of these trivial                  : 77
% 2.78/2.54  # ...subsumed                          : 694
% 2.78/2.54  # ...remaining for further processing  : 853
% 2.78/2.54  # Other redundant clauses eliminated   : 89
% 2.78/2.54  # Clauses deleted for lack of memory   : 0
% 2.78/2.54  # Backward-subsumed                    : 46
% 2.78/2.54  # Backward-rewritten                   : 76
% 2.78/2.54  # Generated clauses                    : 3810
% 2.78/2.54  # ...of the previous two non-redundant : 3151
% 2.78/2.54  # ...aggressively subsumed             : 0
% 2.78/2.54  # Contextual simplify-reflections      : 4
% 2.78/2.54  # Paramodulations                      : 3727
% 2.78/2.54  # Factorizations                       : 0
% 2.78/2.54  # NegExts                              : 0
% 2.78/2.54  # Equation resolutions                 : 91
% 2.78/2.54  # Total rewrite steps                  : 3288
% 2.78/2.54  # Propositional unsat checks           : 0
% 2.78/2.54  #    Propositional check models        : 0
% 2.78/2.54  #    Propositional check unsatisfiable : 0
% 2.78/2.54  #    Propositional clauses             : 0
% 2.78/2.54  #    Propositional clauses after purity: 0
% 2.78/2.54  #    Propositional unsat core size     : 0
% 2.78/2.54  #    Propositional preprocessing time  : 0.000
% 2.78/2.54  #    Propositional encoding time       : 0.000
% 2.78/2.54  #    Propositional solver time         : 0.000
% 2.78/2.54  #    Success case prop preproc time    : 0.000
% 2.78/2.54  #    Success case prop encoding time   : 0.000
% 2.78/2.54  #    Success case prop solver time     : 0.000
% 2.78/2.54  # Current number of processed clauses  : 317
% 2.78/2.54  #    Positive orientable unit clauses  : 160
% 2.78/2.54  #    Positive unorientable unit clauses: 9
% 2.78/2.54  #    Negative unit clauses             : 79
% 2.78/2.54  #    Non-unit-clauses                  : 69
% 2.78/2.54  # Current number of unprocessed clauses: 2521
% 2.78/2.54  # ...number of literals in the above   : 4226
% 2.78/2.54  # Current number of archived formulas  : 0
% 2.78/2.54  # Current number of archived clauses   : 492
% 2.78/2.54  # Clause-clause subsumption calls (NU) : 19542
% 2.78/2.54  # Rec. Clause-clause subsumption calls : 9368
% 2.78/2.54  # Non-unit clause-clause subsumptions  : 260
% 2.78/2.54  # Unit Clause-clause subsumption calls : 1191
% 2.78/2.54  # Rewrite failures with RHS unbound    : 0
% 2.78/2.54  # BW rewrite match attempts            : 792
% 2.78/2.54  # BW rewrite match successes           : 132
% 2.78/2.54  # Condensation attempts                : 0
% 2.78/2.54  # Condensation successes               : 0
% 2.78/2.54  # Termbank termtop insertions          : 259529
% 2.78/2.54  
% 2.78/2.54  # -------------------------------------------------
% 2.78/2.54  # User time                : 0.207 s
% 2.78/2.54  # System time              : 0.027 s
% 2.78/2.54  # Total time               : 0.234 s
% 2.78/2.54  # Maximum resident set size: 12576 pages
% 2.78/2.54  
% 2.78/2.54  # -------------------------------------------------
% 2.78/2.54  # User time                : 0.317 s
% 2.78/2.54  # System time              : 0.035 s
% 2.78/2.54  # Total time               : 0.352 s
% 2.78/2.54  # Maximum resident set size: 10164 pages
% 2.78/2.54  % E---3.1 exiting
% 2.78/2.54  % E---3.1 exiting
%------------------------------------------------------------------------------