**
(etrip e-IniTeX: e-Trip format loaded.
This is the e-Trip test [2014-01-22] for e-TeX v3.14159265-2.6.
(You are using e-TeX version/revision 2.6)
Missing character: There is no b ("62) in font nullfont!

Missing character: There is no c ("63) in font nullfont!

Bug in your e-TeX implementation!
dumped e-TeX enhancement state registers aren't switch off
Checking input/output of new csnames:
e-TeX Version 2 has 66 new csnames:
> \3=macro:
-> \eTeXversion  \eTeXrevision 
 \showgroups  \showtokens 
 \tracingassigns  \tracinggroups 
 \tracingifs  \tracingscantokens 
 \currentgrouplevel  \currentgrouptype 
 \middle  \lastnodetype 
 \TeXXeTstate  \beginL 
 \endL  \beginR 
 \endR  \predisplaydirection 
 \marks  \topmarks 
 \firstmarks  \botmarks 
 \splitfirstmarks  \splittopmarks 
 \protected  \unexpanded 
 \detokenize  \scantokens 
 \readline  \unless 
 \ifdefined  \ifcsname 
 \everyeof  \interactionmode 
 \currentiflevel  \currentiftype 
 \currentifbranch  \showifs 
 \fontcharwd  \fontcharht 
 \fontchardp  \fontcharic 
 \iffontchar  \tracingnesting 
 \parshapelength  \parshapeindent 
 \parshapedimen  \numexpr 
 \dimexpr  \glueexpr 
 \muexpr  \mutoglue 
 \gluetomu  \gluestretchorder 
 \glueshrinkorder  \gluestretch 
 \glueshrink  \savingvdiscards 
 \pagediscards  \splitdiscards 
 \lastlinefit  \savinghyphcodes 
 \interlinepenalties  \clubpenalties 
 \widowpenalties  \displaywidowpenalties 
.
l.181   \show\3
               \endgroup

Checking creation and printing for new node types:

Overfull \hbox (38.99965pt too wide) in paragraph at lines 195--197
[]\trip a[]b[]p$q [] t$u[][]

\hbox(17.0+3.00002)x0.0
.\hbox(0.0+0.0)x0.0
.\trip a
.\beginL
.\trip b
.\beginR
.\trip p
.\mathon
.\trip q
.\glue(\thinmuskip) 4.99988 plus 0.99997
.\hbox(17.0+3.00002)x23.9999
..\hbox(14.00002+2.0)x6.00002, shifted -0.99998
...\bigtrip a
..\trip r
..\glue(\thinmuskip) 4.99988 plus 0.99997
..\hbox(16.0+4.00002)x6.0, shifted -1.0
...\bigtrip B
..\trip s
..\vbox(7.0+11.0)x7.0, shifted -9.0
...\hbox(7.0+1.0)x3.0
....\trip A
...\hbox(8.0+2.0)x3.0
....\trip B
.\glue(\thinmuskip) 4.99988 plus 0.99997
.\trip t
.\mathoff
.\trip r (ligature u|)
.\penalty 10000
.\glue(\parfillskip) 0.0
.\endR
.\endL
.\glue(\rightskip) 0.0


Overfull \hbox (11.0pt too wide) detected at line 197
\trip aMb

\hbox(8.0+2.0)x0.0
.\trip a
.\trip M
.\trip b


Overfull \hbox (24.6pt too wide) in paragraph at lines 197--201
[][]\trip p[]q$st$u[]

\hbox(0.0+0.0)x0.0
.\beginL
.\beginR
.\trip p
.\endR
.\trip q (ligature |)
.\trip q
.\mathon, surrounded 12.3
.\trip s
.\trip t
.\mathoff, surrounded 12.3
.\trip r (ligature u|)
.\penalty 10000
.\glue(\parfillskip) 0.0
.\endL
.\glue(\rightskip) 0.0


Overfull \hbox (6.0pt too wide) detected at line 201
\trip rMs

\hbox(0.0+0.0)x0.0
.\trip r
.\trip M
.\trip s


Overfull \hbox (3.0pt too wide) in paragraph at lines 201--205
[]\trip tp[]u

\hbox(0.0+0.0)x0.0
.\beginL
.\trip t
.\kern3.0
.\trip q (ligature )
.\trip p
.\endL
.\trip r (ligature u|)
.\penalty 10000
.\glue(\parfillskip) 0.0
.\glue(\rightskip) 0.0


Overfull \hbox (6.0pt too wide) detected at line 205
\trip rMs

\hbox(0.0+0.0)x0.0
.\trip r
.\trip M
.\trip s

! Bad register code (-1).
<to be read again> 
                   {
l.208     \marks-1{
                   -1}\marks32768{32768}% Bad register (-1) ...and (32768).
A register number must be between 0 and 32767.
I changed this one to zero.

! Bad register code (32768).
<to be read again> 
                   {
l.208     \marks-1{-1}\marks32768{
                                  32768}% Bad register (-1) ...and (32768).
A register number must be between 0 and 32767.
I changed this one to zero.

! Improper \beginL.
l.210     \beginL
                 \beginR\endL\endR % Improper \(begin/end)(L/R)
Sorry, this optional e-TeX feature has been disabled.

! Improper \beginR.
l.210     \beginL\beginR
                        \endL\endR % Improper \(begin/end)(L/R)
Sorry, this optional e-TeX feature has been disabled.

! Improper \endL.
l.210     \beginL\beginR\endL
                             \endR % Improper \(begin/end)(L/R)
Sorry, this optional e-TeX feature has been disabled.

! Improper \endR.
l.210     \beginL\beginR\endL\endR
                                   % Improper \(begin/end)(L/R)
Sorry, this optional e-TeX feature has been disabled.


Overfull \hbox (3.0pt too wide) in paragraph at lines 205--211
\trip tp

\hbox(0.0+0.0)x0.0
.\trip t
.\kern3.0
.\trip q (ligature )
.\trip p
.\penalty 10000
.\glue(\parfillskip) 0.0
.\glue(\rightskip) 0.0

> \box0=
\vbox(30.00002+0.0)x0.0
.\hbox(17.0+3.00002)x0.0
..\hbox(0.0+0.0)x0.0
..\trip a
..\beginL
..\trip b
..\beginR
..\trip p
..\mathon
..\trip q
..\glue(\thinmuskip) 4.99988 plus 0.99997
..\hbox(17.0+3.00002)x23.9999
...\hbox(14.00002+2.0)x6.00002, shifted -0.99998
....\bigtrip a
...\trip r
...\glue(\thinmuskip) 4.99988 plus 0.99997
...\hbox(16.0+4.00002)x6.0, shifted -1.0
....\bigtrip B
...\trip s
...\vbox(7.0+11.0)x7.0, shifted -9.0
....\hbox(7.0+1.0)x3.0
.....\trip A
....\hbox(8.0+2.0)x3.0
.....\trip B
..\glue(\thinmuskip) 4.99988 plus 0.99997
..\trip t
..\mathoff
..\trip r (ligature u|)
..\penalty 10000
..\glue(\parfillskip) 0.0
..\endR
..\endL
..\glue(\rightskip) 0.0
.\penalty 0
.\glue(\abovedisplayskip) 0.0
.\glue(\lineskip) 0.0
.\hbox(8.0+2.0)x0.0
..\beginM
..\kern0.0
..\hbox(8.0+2.0)x0.0, display
...\trip a
...\trip M
...\trip b
..\kern0.0
..\endM
.\penalty 0
.\glue(\belowdisplayskip) 0.0
.\glue(\lineskip) 0.0
.\hbox(0.0+0.0)x0.0
..\beginL
..\beginR
..\trip p
..\endR
..\trip q (ligature |)
..\trip q
..\mathon, surrounded 12.3
..\trip s
..\trip t
..\mathoff, surrounded 12.3
..\trip r (ligature u|)
..\penalty 10000
..\glue(\parfillskip) 0.0
..\endL
..\glue(\rightskip) 0.0
.\penalty 0
.\glue(\abovedisplayskip) 0.0
.\glue(\baselineskip) 0.0
.\hbox(0.0+0.0)x0.0
..\beginM
..\kern0.0
..\hbox(0.0+0.0)x0.0, display
...\trip r
...\trip M
...\trip s
..\kern0.0
..\endM
.\penalty 0
.\glue(\belowdisplayskip) 0.0
.\glue(\baselineskip) 0.0
.\hbox(0.0+0.0)x0.0
..\beginL
..\trip t
..\kern3.0
..\trip q (ligature )
..\trip p
..\endL
..\trip r (ligature u|)
..\penalty 10000
..\glue(\parfillskip) 0.0
..\glue(\rightskip) 0.0
.\penalty 0
.\glue(\abovedisplayskip) 0.0
.\glue(\baselineskip) 0.0
.\hbox(0.0+0.0)x0.0, display
..\trip r
..\trip M
..\trip s
.\penalty 0
.\glue(\belowdisplayskip) 0.0
.\glue(\baselineskip) 0.0
.\hbox(0.0+0.0)x0.0
..\trip t
..\kern3.0
..\trip q (ligature )
..\trip p
..\penalty 10000
..\glue(\parfillskip) 0.0
..\glue(\rightskip) 0.0
.\mark{0old}
.\mark{0}
.\marks1{1}
.\marks15{15}
.\marks32767{32767}
.\mark{-1}
.\mark{32768}

! OK.
l.211   }\showbox0
                  

Checking \interactionmode:


current interactionmode (l.229): batch

current interactionmode (l.230): nonstop

current interactionmode (l.231): scroll

current interactionmode (l.232): errorstop

! Bad interaction mode (-1).
l.237   \interactionmode=-1 
                            \1 1 % nonstop
Modes are 0=batch, 1=nonstop, 2=scroll, and
3=errorstop. Proceed, and I'll ignore this case.

current interactionmode (l.237): nonstop
! Bad interaction mode (4).
l.238   \interactionmode=4 
                            \1 1 % nonstop
Modes are 0=batch, 1=nonstop, 2=scroll, and
3=errorstop. Proceed, and I'll ignore this case.

current interactionmode (l.238): nonstop

current interactionmode (l.239): scroll

current interactionmode (l.239): scroll

current interactionmode (l.239): nonstop

current interactionmode (l.239): nonstop

current interactionmode (l.239): errorstop

current interactionmode (l.239): errorstop

current interactionmode (l.239): batch

current interactionmode (l.239): batch
current interactionmode (l.240): batch

current interactionmode (l.240): errorstop

1 (l.243)
0 (l.244)
1 (l.245)
current interactionmode (l.247): batch

current interactionmode (l.247): errorstop

current interactionmode (l.247): scroll

current interactionmode (l.247): nonstop

current interactionmode (l.248): batch
Checking \tracingifs:
{vertical mode: \iftrue: (level 1) entered on line 257}
{\iffalse: (level 2) entered on line 257}
{\else: \iffalse (level 2) entered on line 257}
{\fi: \iffalse (level 2) entered on line 257}
{\else: \iftrue (level 1) entered on line 257}
{\fi: \iftrue (level 1) entered on line 257}
{\unless\iftrue: (level 1) entered on line 258}
{\else: \unless\iftrue (level 1) entered on line 258}
{\unless\iffalse: (level 2) entered on line 258}
{\else: \unless\iffalse (level 2) entered on line 258}
{\fi: \unless\iffalse (level 2) entered on line 258}
{\fi: \unless\iftrue (level 1) entered on line 258}
{\ifdefined: (level 1) entered on line 260}
{true}
{\unless}
{\unless\ifdefined: (level 2) entered on line 260}
{true}
{\ifcase: (level 3) entered on line 260}
{case 2}
{\or: \ifcase (level 3) entered on line 260}
{\or: \ifcase (level 3) entered on line 260}
{\ifcsname: (level 4) entered on line 261}
{true}
{\ifcsname: (level 5) entered on line 261}
{false}
{\else: \ifcsname (level 5) entered on line 261}
{\ifx: (level 6) entered on line 262}
{false}
{\else: \ifx (level 6) entered on line 262}
{\ifx: (level 7) entered on line 262}
{false}
{\fi: \ifx (level 7) entered on line 262}
{\fi: \ifx (level 6) entered on line 262}
{\fi: \ifcsname (level 5) entered on line 261}
{\fi: \ifcsname (level 4) entered on line 261}
{\or: \ifcase (level 3) entered on line 260}
{\fi: \ifcase (level 3) entered on line 260}
{\fi: \unless\ifdefined (level 2) entered on line 260}
{\fi: \ifdefined (level 1) entered on line 260}
{\endgroup}
Checking \tracingassigns:
Checking \currentgrouptype, \currentgrouplevel, and \lastnodetype:
current group level (l.284): outer level
current group type (l.286): bottom level
current group type (l.313): semi simple group
current group type (l.315): vbox group
current group type (l.316): adjusted hbox group
current group type (l.317): simple group
last node type (l.318): empty
current group type (l.319): hbox group
current group type (l.320): disc group
current group type (l.320): disc group
current group type (l.320): disc group
last node type (l.322): disc node
last node type (l.323): char node
last node type (l.324): ligature node
current group type (l.325): insert group
last node type (l.326): ins node
current group type (l.327): insert group
last node type (l.328): adjust node
last node type (l.329): mark node
last node type (l.330): rule node
last node type (l.331): glue node
last node type (l.332): kern node
last node type (l.333): penalty node
current group type (l.334): vtop group
last node type (l.335): vlist node
last node type (l.336): whatsit node
current group type (l.337): math shift group
current group type (l.338): math group
last node type (l.340): math node
last node type (l.341): math node
last node type (l.342): math node
current group type (l.343): align group
current group type (l.344): no align group
last node type (l.345): unset node
last node type (l.349): hlist node
current group type (l.350): math shift group
last node type (l.351): empty
current group type (l.352): math choice group
current group type (l.352): math choice group
current group type (l.352): math choice group
current group type (l.352): math choice group
current group type (l.353): vcenter group
last node type (l.354): math mode node
last node type (l.355): math mode node
current group type (l.356): math left group
current group type (l.357): math left group
current group type (l.358): math left group
current group type (l.396): output group

### disc group (level 18) entered at line 396 (\discretionary{}{)
### insert group (level 17) entered at line 396 (\insert0{)
### vcenter group (level 16) entered at line 396 (\vcenter to7.0pt{)
### math choice group (level 15) entered at line 396 (\mathchoice{}{}{)
### math left group (level 14) entered at line 396 (\middle)
### math group (level 13) entered at line 396 ({)
### math shift group (level 12) entered at line 396 ($$)
### vtop group (level 11) entered at line 396 (\vtop{)
### math shift group (level 10) entered at line 396 ($)
### no align group (level 9) entered at line 396 (\noalign{)
### align group (level 8) entered at line 396 (\cr)
### align group (level 7) entered at line 396 (\valign{)
### simple group (level 6) entered at line 396 ({)
### hbox group (level 5) entered at line 396 (\raise5.0pt\hbox{)
### adjusted hbox group (level 4) entered at line 396 (\hbox spread5.0pt{)
### vbox group (level 3) entered at line 396 (\setbox0=\vbox{)
### output group (level 2) entered at line 396 (\output)
### semi simple group (level 1) entered at line 287 (\begingroup)
### bottom level

! OK.
<output> ...djust { \discretionary {}{\showgroups 
                                                  }{} } } }{} \right . } $$ ...
l.396   \hbox{}\vfil\penalty-10000
                                  

Checking expansion of \protected macros:
> \2=\protected macro:
->.
l.404   \protected\def\2{} \show\2
                                  

> \3=\protected macro:
->.
l.405   \let\3=\2 \show\3
                         

> \1=\protected macro:
->\2.
l.406 ...\protected\3\protected\def\1{\2}} \show\1
                                                  


\1->\2
\1\2
\typeout ->\immediate \write 15 

\1->\2
\1\2

\1->\2
> \box0=
\vbox(0.0+0.0)x0.0
.\special{\1\2}

! OK.
l.410 ...box{\special{\expandafter\1\1}} \showbox0
                                                  


\1->\2
> \5=macro:
->\1\2.
l.411   \edef\5{\expandafter\1\1} \show\5
                                         


\1->\2

\1->\3

\3->

\2->
Checking \scantokens, \tracingscantokens, \readline, and \everyeof:

Completed box being shipped out [1]
\vbox(0.0+0.0)x0.0
.\openout1=etrip.out
.\write1{\unexpanded \expandafter {\1}}
.\closeout1

\openout1 = `etrip.out'.

(etrip.out) ( 
Warning: end of semi simple group (level 3) entered at line 433 of a different 
file
Warning: end of \iftrue entered on line 433 of a different file
Warning: end of file when simple group (level 3) entered at line 3 is incomplet
e
Warning: end of file when \iffalse\else entered on line 4 is incomplete
) ( 
Warning: end of semi simple group (level 3) entered at line 435 of a different 
file
l.1 \endgroup
             
l.435 ...nless\iffalse \scantokens\expandafter{\1}
                                                   \egroup \fi
Warning: end of \unless\iffalse entered on line 435 of a different file
l.2 \fi
       
l.435 ...nless\iffalse \scantokens\expandafter{\1}
                                                   \egroup \fi
Warning: end of file when simple group (level 3) entered at line 3 is incomplet
e
Warning: end of file when \iffalse\else entered on line 4 is incomplete
l.5 \iffalse \else
                  
l.435 ...nless\iffalse \scantokens\expandafter{\1}
                                                   \egroup \fi) ( 
Warning: end of hbox group (level 4) entered at line 1 of a different file
l.1 \egroup
           
l.6  }
      
l.446         }
                % end of outer \scantokens
Warning: end of \ifcase entered on line 2 of a different file
l.2 \else \fi
             
l.6  }
      
l.446         }
                % end of outer \scantokens
Warning: end of hbox group (level 3) entered at line 437 of a different file

\1->\egroup 
            \fi 
l.4 \1
      
l.6  }
      
l.446         }
                % end of outer \scantokens
Warning: end of \unless\iftrue entered on line 438 of a different file

\1->\egroup \fi 
                
l.4 \1
      
l.6  }
      
l.446         }
                % end of outer \scantokens
Warning: end of file when math shift group (level 4) entered at line 7 is incom
plete
Warning: end of file when vtop group (level 3) entered at line 5 is incomplete
Warning: end of file when \iffalse entered on line 9 is incomplete
Warning: end of file when \ifinner\else entered on line 8 is incomplete
Warning: end of file when \ifnum entered on line 6 is incomplete
l.10  \csname iffalse\endcsname
                               
l.6  }
      
l.446         }
                % end of outer \scantokens
! Incomplete \iffalse; all text was ignored after line 9.
<inserted text> 
                \fi 
l.6  }
      
l.446         }
                % end of outer \scantokens
The file ended while I was skipping conditional text.
This kind of error happens when you say `\if...' and forget
the matching `\fi'. I've inserted a `\fi'; this might work.

Warning: end of file when vtop group (level 3) entered at line 5 is incomplete
Warning: end of file when \ifnum entered on line 6 is incomplete
l.9 \fi
       
l.446         }
                % end of outer \scantokens) (etrip.out
! Undefined control sequence.
\endgroup ->\9\9
                
l.1 \endgroup
             
The control sequence at the end of the top line
of your error message was never \def'ed. If you have
misspelled it (e.g., `\hobx'), type `I' and the correct
spelling (e.g., `I\hbox'). Otherwise just continue,
and I'll forget about whatever was undefined.

) ( 
! Undefined control sequence.
\endgroup ->\9\9
                
l.1 \endgroup
             
l.453     \scantokens\expandafter{\1}
                                      \egroup \fi
The control sequence at the end of the top line
of your error message was never \def'ed. If you have
misspelled it (e.g., `\hobx'), type `I' and the correct
spelling (e.g., `I\hbox'). Otherwise just continue,
and I'll forget about whatever was undefined.

) ( )
Runaway definition?
->\begingroup 
! File ended while scanning definition of \1.
<inserted text> 
                }
l.455   \edef\1{\scantokens{\begingroup}
                                         % <== error
I suspect you have forgotten a `}', causing me
to read past where you wanted me to stop.
I'll try to recover; but if the error is serious,
you'd better type `E' or `X' now and fix your file.

( ) (  level=2 (  level=3 (  level=4
! Undefined control sequence.
<everyeof> \ifnum 4>\currentgrouplevel \2\else \9
                                                 \fi 
l.2 
    
\2...s {\message {level=\the \currentgrouplevel }}
                                                  \endgroup 
<everyeof> \ifnum 4>\currentgrouplevel \2
                                         \else \9\fi 
l.2 
    
\2...s {\message {level=\the \currentgrouplevel }}
                                                  \endgroup 
<everyeof> \ifnum 4>\currentgrouplevel \2
                                         \else \9\fi 
l.2 
    
\2...s {\message {level=\the \currentgrouplevel }}
                                                  \endgroup 
l.463 ...ed{>\currentgrouplevel\2\else\9\fi}}}\1\2
                                                  
The control sequence at the end of the top line
of your error message was never \def'ed. If you have
misspelled it (e.g., `\hobx'), type `I' and the correct
spelling (e.g., `I\hbox'). Otherwise just continue,
and I'll forget about whatever was undefined.

)))
{\tracingrestores}
{\tracingassigns}
{\setbox}
{restricted horizontal mode: \unless}
{\unless\ifeof}
{true}
{\readline}
{\endlinechar}
{the character \}
Missing character: There is no \ ("5C) in font etrip!
{the character e}
Missing character: There is no e ("65) in font etrip!
{the character n}
Missing character: There is no n ("6E) in font etrip!
{the character d}
Missing character: There is no d ("64) in font etrip!
{the character g}
Missing character: There is no g ("67) in font etrip!
{the character r}
Missing character: There is no o ("6F) in font etrip!
{the character u}
Missing character: There is no ^^M ("D) in font etrip!
{\expandafter}
{\fi}
{\unless}
{\unless\ifeof}
{true}
{\readline}
{\endlinechar}
{the character \}
Missing character: There is no \ ("5C) in font etrip!
{the character f}
Missing character: There is no f ("66) in font etrip!
{the character i}
Missing character: There is no i ("69) in font etrip!
{\expandafter}
{\fi}
{\unless}
{\unless\ifeof}
{true}
{\readline}
{\endlinechar}
{the character \}
Missing character: There is no \ ("5C) in font etrip!
{the character b}
Missing character: There is no g ("67) in font etrip!
{the character r}
Missing character: There is no o ("6F) in font etrip!
{the character u}
{\expandafter}
{\fi}
{\unless}
{\unless\ifeof}
{true}
{\readline}
{\endlinechar}
{the character \}
Missing character: There is no \ ("5C) in font etrip!
{the character i}
Missing character: There is no i ("69) in font etrip!
{the character f}
Missing character: There is no f ("66) in font etrip!
{the character f}
Missing character: There is no f ("66) in font etrip!
{the character a}
Missing character: There is no l ("6C) in font etrip!
{the character s}
Missing character: There is no e ("65) in font etrip!
{blank space  }
{the character \}
Missing character: There is no \ ("5C) in font etrip!
{the character e}
Missing character: There is no e ("65) in font etrip!
{the character l}
Missing character: There is no l ("6C) in font etrip!
{the character s}
Missing character: There is no e ("65) in font etrip!
{\expandafter}
{\fi}
{\unless}
{\unless\ifeof}
{true}
{\readline}
{\endlinechar}
{\expandafter}
{\fi}
{\unless}
{\unless\ifeof}
{false}
{\showlists}

### restricted horizontal mode entered at line 470
\trip r
\trip r (ligature up)
\trip b
\trip r
\trip r (ligature up)
\trip a
\trip s
\glue 4.0 plus 2.0 minus 1.0
\trip s
spacefactor 1000
### vertical mode entered at line 0
prevdepth 0.0

! OK.
l.470     \setbox25=\hbox{\1\showlists
                                      }^^M

{end-group character }}
{vertical mode: blank space  }
{end-group character }}
Checking \marks etc., \showtokens, and \detokenize:

Current marks:
 \splitfirstmarks 0=.
 \splitbotmarks 0=.
 \splitfirstmarks 1=.
 \splitbotmarks 1=.
 \splitfirstmarks 3=.
 \splitbotmarks 3=.
> \box0=
\vbox(188.0+0.0)x10.0
.\mark{0-1}
.\marks1{1-1}
.\glue 1.0
.\vbox(9.0+0.0)x0.0
.\mark{0-2}
.\marks3{}
.\glue(\baselineskip) 0.0
.\hbox(0.0+0.0)x0.0
.\glue 5.0
.\glue 0.0 plus 1.0fil
.\penalty 0
.\glue 40.0
.\mark{0-3}
.\glue 1.0
.\glue(\lineskip) 0.0
.\vbox(19.0+0.0)x0.0
.\marks3{3-3}
.\glue 3.0 plus 1.0fil
.\penalty 0
.\glue 40.0
.\glue(\lineskip) 0.0
.\vbox(30.0+0.0)x0.0
.\glue 0.0 plus 1.0fil
.\penalty 0
.\glue 40.0
.\glue(\baselineskip) 0.0
.\hbox(0.0+0.0)x10.0

! OK.
l.493   \1 \showbox0 
                     \let\5=\3 \def\3#1{\showtokens\expandafter{#1}\5{#1}}

> 0-1.
<recently read> }
                 
...
l.495   \1
           \showbox1 \showbox0 \let\3=\5

> 0-2.
<recently read> }
                 
...
l.495   \1
           \showbox1 \showbox0 \let\3=\5

> 1-1.
<recently read> }
                 
...
l.495   \1
           \showbox1 \showbox0 \let\3=\5

> 1-1.
<recently read> }
                 
...
l.495   \1
           \showbox1 \showbox0 \let\3=\5

> .
<recently read> }
                 
...
l.495   \1
           \showbox1 \showbox0 \let\3=\5

> .
<recently read> }
                 
...
l.495   \1
           \showbox1 \showbox0 \let\3=\5


Current marks:
 \splitfirstmarks 0=0-1.
 \splitbotmarks 0=0-2.
 \splitfirstmarks 1=1-1.
 \splitbotmarks 1=1-1.
 \splitfirstmarks 3=.
 \splitbotmarks 3=.
> \box1=
\vbox(17.0+0.0)x0.0, glue set 2.0fil
.\mark{0-1}
.\marks1{1-1}
.\glue 1.0
.\vbox(9.0+0.0)x0.0
.\mark{0-2}
.\marks3{}
.\glue(\baselineskip) 0.0
.\hbox(0.0+0.0)x0.0
.\glue 5.0
.\glue 0.0 plus 1.0fil

! OK.
l.495   \1 \showbox1 
                     \showbox0 \let\3=\5

> \box0=
\vbox(132.0+0.0)x10.0
.\mark{0-3}
.\glue(\splittopskip) 0.0
.\vbox(19.0+0.0)x0.0
.\marks3{3-3}
.\glue 3.0 plus 1.0fil
.\penalty 0
.\glue 40.0
.\glue(\lineskip) 0.0
.\vbox(30.0+0.0)x0.0
.\glue 0.0 plus 1.0fil
.\penalty 0
.\glue 40.0
.\glue(\baselineskip) 0.0
.\hbox(0.0+0.0)x10.0

! OK.
l.495   \1 \showbox1 \showbox0 
                               \let\3=\5


Current marks:
 \splitfirstmarks 0=0-3.
 \splitbotmarks 0=0-3.
 \splitfirstmarks 1=.
 \splitbotmarks 1=.
 \splitfirstmarks 3=3-3.
 \splitbotmarks 3=3-3.
> \box1=
\vbox(27.0+0.0)x0.0, glue set 5.0fil
.\mark{0-3}
.\glue(\splittopskip) 0.0
.\vbox(19.0+0.0)x0.0
.\marks3{3-3}
.\glue 3.0 plus 1.0fil

! OK.
l.497   \1 \showbox1 
                     \showbox0

> \box0=
\vbox(70.0+0.0)x10.0
.\glue(\splittopskip) 0.0
.\vbox(30.0+0.0)x0.0
.\glue 0.0 plus 1.0fil
.\penalty 0
.\glue 40.0
.\glue(\baselineskip) 0.0
.\hbox(0.0+0.0)x10.0

! OK.
l.497   \1 \showbox1 \showbox0
                              


Current marks:
 \splitfirstmarks 0=.
 \splitbotmarks 0=.
 \splitfirstmarks 1=.
 \splitbotmarks 1=.
 \splitfirstmarks 3=.
 \splitbotmarks 3=.
> \box1=
\vbox(37.0+0.0)x0.0, glue set 7.0fil
.\glue(\splittopskip) 0.0
.\vbox(30.0+0.0)x0.0
.\glue 0.0 plus 1.0fil

! OK.
l.499   \1 \showbox1 
                     \showbox0

> \box0=
\vbox(0.0+0.0)x10.0
.\glue(\splittopskip) 0.0
.\hbox(0.0+0.0)x10.0

! OK.
l.499   \1 \showbox1 \showbox0
                              


Current marks:
 \topmarks 0=.
 \firstmarks 0=.
 \botmarks 0=.
 \topmarks 1=.
 \firstmarks 1=.
 \botmarks 1=.
 \topmarks 3=.
 \firstmarks 3=.
 \botmarks 3=.

Current marks:
 \topmarks 0=.
 \firstmarks 0=0-1.
 \botmarks 0=0-2.
 \topmarks 1=.
 \firstmarks 1=1-1.
 \botmarks 1=1-1.
 \topmarks 3=.
 \firstmarks 3=.
 \botmarks 3=.
> \box255=
\vbox(35.0+0.0)x0.0, glue set 21.0fil
.\mark{0-1}
.\marks1{1-1}
.\glue(\topskip) 0.0
.\vbox(9.0+0.0)x0.0
.\mark{0-2}
.\marks3{}
.\glue(\baselineskip) 0.0
.\hbox(0.0+0.0)x0.0
.\glue 5.0
.\glue 0.0 plus 1.0fil

! OK.
<output> {\1 \showbox 255 
                          \setbox 0=\box 255}
l.502 ...s0{}\marks1{}\marks3{}\vfil\penalty-10000
                                                  


Current marks:
 \topmarks 0=0-2.
 \firstmarks 0=0-3.
 \botmarks 0=0-3.
 \topmarks 1=1-1.
 \firstmarks 1=1-1.
 \botmarks 1=1-1.
 \topmarks 3=.
 \firstmarks 3=3-3.
 \botmarks 3=3-3.
> \box255=
\vbox(35.0+0.0)x0.0, glue set 13.0fil
.\mark{0-3}
.\glue(\topskip) 0.0
.\vbox(19.0+0.0)x0.0
.\marks3{3-3}
.\glue 3.0 plus 1.0fil

! OK.
<output> {\1 \showbox 255 
                          \setbox 0=\box 255}
l.502 ...s0{}\marks1{}\marks3{}\vfil\penalty-10000
                                                  


Current marks:
 \topmarks 0=0-3.
 \firstmarks 0=0-3.
 \botmarks 0=0-3.
 \topmarks 1=1-1.
 \firstmarks 1=1-1.
 \botmarks 1=1-1.
 \topmarks 3=3-3.
 \firstmarks 3=3-3.
 \botmarks 3=3-3.
> \box255=
\vbox(35.0+0.0)x0.0, glue set 5.0fil
.\glue(\topskip) 0.0
.\vbox(30.0+0.0)x0.0
.\glue 0.0 plus 1.0fil

! OK.
<output> {\1 \showbox 255 
                          \setbox 0=\box 255}
l.502 ...s0{}\marks1{}\marks3{}\vfil\penalty-10000
                                                  


Current marks:
 \topmarks 0=0-3.
 \firstmarks 0=.
 \botmarks 0=.
 \topmarks 1=1-1.
 \firstmarks 1=.
 \botmarks 1=.
 \topmarks 3=3-3.
 \firstmarks 3=.
 \botmarks 3=.
> \box255=
\vbox(35.0+0.0)x10.0, glue set 35.0fil
.\glue(\topskip) 0.0
.\hbox(0.0+0.0)x10.0
.\mark{}
.\marks1{}
.\marks3{}
.\glue 0.0 plus 1.0fil

! OK.
<output> {\1 \showbox 255 
                          \setbox 0=\box 255}
l.502 ...s0{}\marks1{}\marks3{}\vfil\penalty-10000
                                                  


Current marks:
 \topmarks 0=.
 \firstmarks 0=.
 \botmarks 0=.
 \topmarks 1=.
 \firstmarks 1=.
 \botmarks 1=.
 \topmarks 3=.
 \firstmarks 3=.
 \botmarks 3=.
> \box255=
\vbox(35.0+0.0)x0.0, glue set 35.0fil
.\glue(\topskip) 0.0
.\hbox(0.0+0.0)x0.0
.\mark{}
.\marks1{}
.\marks3{}
.\glue 0.0 plus 1.0fil

! OK.
<output> {\1 \showbox 255 
                          \setbox 0=\box 255}
l.503 ...s0{}\marks1{}\marks3{}\vfil\penalty-10000
                                                  


Current marks:
 \topmarks 0=.
 \firstmarks 0=.
 \botmarks 0=.
 \topmarks 1=.
 \firstmarks 1=.
 \botmarks 1=.
 \topmarks 3=.
 \firstmarks 3=.
 \botmarks 3=.
> \box255=
\vbox(35.0+0.0)x0.0, glue set 35.0fil
.\glue(\topskip) 0.0
.\hbox(0.0+0.0)x0.0
.\glue 0.0 plus 1.0fil

! OK.
<output> {\1 \showbox 255 
                          \setbox 0=\box 255}
l.504   \hbox{}\vfil\penalty-10000 
                                   % reclaim sparse array memory!

Checking \middle:
! Missing $ inserted.
<inserted text> 
                $
...
l.513   \setbox0=\vbox{\middle
                               \par \right \par} % <== 8 errors
I've inserted a begin-math/end-math symbol since I think
you left one out. Proceed, with fingers crossed.

! Missing delimiter (. inserted).
<to be read again> 
                   \par 
l.513   \setbox0=\vbox{\middle \par
                                    \right \par} % <== 8 errors
I was expecting to see something like `(' or `\{' or
`\}' here. If you typed, e.g., `{' instead of `\{', you
should probably delete the `{' by typing `1' now, so that
braces don't get unbalanced. Otherwise just proceed.
Acceptable delimiters are characters whose \delcode is
nonnegative, or you can use `\delimiter <delimiter code>'.

! Extra \middle.
<to be read again> 
                   \par 
l.513   \setbox0=\vbox{\middle \par
                                    \right \par} % <== 8 errors
I'm ignoring a \middle that had no matching \left.

! Missing $ inserted.
<inserted text> 
                $
...
l.513   \setbox0=\vbox{\middle \par
                                    \right \par} % <== 8 errors
I've inserted a begin-math/end-math symbol since I think
you left one out. Proceed, with fingers crossed.

! Missing $ inserted.
<inserted text> 
                $
...
l.513   \setbox0=\vbox{\middle \par \right
                                           \par} % <== 8 errors
I've inserted a begin-math/end-math symbol since I think
you left one out. Proceed, with fingers crossed.

! Missing delimiter (. inserted).
<to be read again> 
                   \par 
l.513   \setbox0=\vbox{\middle \par \right \par
                                               } % <== 8 errors
I was expecting to see something like `(' or `\{' or
`\}' here. If you typed, e.g., `{' instead of `\{', you
should probably delete the `{' by typing `1' now, so that
braces don't get unbalanced. Otherwise just proceed.
Acceptable delimiters are characters whose \delcode is
nonnegative, or you can use `\delimiter <delimiter code>'.

! Extra \right.
<to be read again> 
                   \par 
l.513   \setbox0=\vbox{\middle \par \right \par
                                               } % <== 8 errors
I'm ignoring a \right that had no matching \left.

! Missing $ inserted.
<inserted text> 
                $
...
l.513   \setbox0=\vbox{\middle \par \right \par
                                               } % <== 8 errors
I've inserted a begin-math/end-math symbol since I think
you left one out. Proceed, with fingers crossed.


### math mode entered at line 524
\mathord
.\fam1 r
this will begin denominator of:
\fraction, thickness = default
\\left"161361
\\mathord
\.\fam1 p
\\middle"142342
\\mathord
\.\fam1 q
\\middle"142342
\\mathord
\.\fam1 q
### math mode entered at line 521
\left"161361
\mathord
.\fam1 p
\middle"142342
\mathord
.\fam1 q
\middle"142342
\mathord
.\fam1 q
### math mode entered at line 517
\mathord
.\fam1 r
this will begin denominator of:
\fraction, thickness = default
\\left"161361
\\mathord
\.\fam1 q
### math mode entered at line 516
\left"161361
\mathord
.\fam1 p
### math mode entered at line 515
### restricted horizontal mode entered at line 514
spacefactor 1000
### vertical mode entered at line 0
prevdepth 0.0

! OK.
l.525             \over r\showlists
                                   


### math mode entered at line 521
\left"161361
\mathord
.\fam1 p
\middle"142342
\mathord
.\fam1 q
\middle"142342
\mathord
.\fam1 q
\mathinner
.\left"161361
.\mathord
..\fam1 p
.\middle"142342
.\mathord
..\fam1 q
.\middle"142342
.\fraction, thickness = default
.\\mathord
.\.\fam1 q
./\mathord
./.\fam1 r
.\right"162362
### math mode entered at line 517
\mathord
.\fam1 r
this will begin denominator of:
\fraction, thickness = default
\\left"161361
\\mathord
\.\fam1 q
### math mode entered at line 516
\left"161361
\mathord
.\fam1 p
### math mode entered at line 515
### restricted horizontal mode entered at line 514
spacefactor 1000
### vertical mode entered at line 0
prevdepth 0.0

! OK.
l.526             \right]\showlists
                                   


### math mode entered at line 517
\mathord
.\fam1 r
\mathinner
.\left"161361
.\mathord
..\fam1 p
.\middle"142342
.\mathord
..\fam1 q
.\middle"142342
.\mathord
..\fam1 q
.\mathinner
..\left"161361
..\mathord
...\fam1 p
..\middle"142342
..\mathord
...\fam1 q
..\middle"142342
..\fraction, thickness = default
..\\mathord
..\.\fam1 q
../\mathord
../.\fam1 r
..\right"162362
.\right"162362
this will begin denominator of:
\fraction, thickness = default
\\left"161361
\\mathord
\.\fam1 q
### math mode entered at line 516
\left"161361
\mathord
.\fam1 p
### math mode entered at line 515
### restricted horizontal mode entered at line 514
spacefactor 1000
### vertical mode entered at line 0
prevdepth 0.0

! OK.
l.527           \right]\showlists
                                 


### math mode entered at line 516
\left"161361
\mathord
.\fam1 p
\mathinner
.\left"161361
.\fraction, thickness = default
.\\mathord
.\.\fam1 q
./\mathord
./.\fam1 r
./\mathinner
./.\left"161361
./.\mathord
./..\fam1 p
./.\middle"142342
./.\mathord
./..\fam1 q
./.\middle"142342
./.\mathord
./..\fam1 q
./.\mathinner
./..\left"161361
./..\mathord
./...\fam1 p
./..\middle"142342
./..\mathord
./...\fam1 q
./..\middle"142342
./..\fraction, thickness = default
./..\\mathord
./..\.\fam1 q
./../\mathord
./../.\fam1 r
./..\right"162362
./.\right"162362
.\right"162362
### math mode entered at line 515
### restricted horizontal mode entered at line 514
spacefactor 1000
### vertical mode entered at line 0
prevdepth 0.0

! OK.
l.528         \right]\showlists
                               


### math mode entered at line 515
\mathinner
.\left"161361
.\mathord
..\fam1 p
.\mathinner
..\left"161361
..\fraction, thickness = default
..\\mathord
..\.\fam1 q
../\mathord
../.\fam1 r
../\mathinner
../.\left"161361
../.\mathord
../..\fam1 p
../.\middle"142342
../.\mathord
../..\fam1 q
../.\middle"142342
../.\mathord
../..\fam1 q
../.\mathinner
../..\left"161361
../..\mathord
../...\fam1 p
../..\middle"142342
../..\mathord
../...\fam1 q
../..\middle"142342
../..\fraction, thickness = default
../..\\mathord
../..\.\fam1 q
../../\mathord
../../.\fam1 r
../..\right"162362
../.\right"162362
..\right"162362
.\right"162362
### restricted horizontal mode entered at line 514
spacefactor 1000
### vertical mode entered at line 0
prevdepth 0.0

! OK.
l.529       \right]\showlists
                             


### restricted horizontal mode entered at line 514
\mathon
\hbox(30.99977+16.99977)x80.99994
.\hbox(14.00002+2.0)x6.00002, shifted -0.99998
..\bigtrip a
.\trip p
.\glue(\thinmuskip) 4.99988 plus 0.99997
.\hbox(30.99977+16.99977)x63.00005
..\hbox(14.00002+2.0)x6.00002, shifted -0.99998
...\bigtrip a
..\hbox(8.5+16.49994)x50.00003
...\hbox(0.0+0.0)x0.0, shifted -7.0
...\vbox(8.5+16.49994)x50.00003
....\hbox(0.0+0.0)x50.00003, glue set 25.00002fil
.....\glue 0.0 plus 1.0fil minus 1.0fil
.....\trip q
.....\glue 0.0 plus 1.0fil minus 1.0fil
....\kern1.0
....\rule(1.0+0.0)x*
....\kern1.0
....\hbox(17.99997+3.99997)x50.00003
.....\trip r
.....\hbox(17.99997+3.99997)x50.00003
......\hbox(14.00002+2.0)x6.00002, shifted -0.99998
.......\bigtrip a
......\trip p
......\hbox(16.0+4.00002)x6.0, shifted -1.0
.......\bigtrip B
......\trip q
......\hbox(16.0+4.00002)x6.0, shifted -1.0
.......\bigtrip B
......\trip q
......\hbox(17.0+3.00002)x25.00002
.......\hbox(14.00002+2.0)x6.00002, shifted -0.99998
........\bigtrip a
.......\trip p
.......\hbox(16.0+4.00002)x6.0, shifted -1.0
........\bigtrip B
.......\trip q
.......\hbox(16.0+4.00002)x6.0, shifted -1.0
........\bigtrip B
.......\hbox(8.5+2.0)x0.0
........\hbox(0.0+0.0)x0.0, shifted -7.0
........\vbox(8.5+2.0)x0.0
.........\hbox(0.0+0.0)x0.0
..........\trip q
.........\kern1.0
.........\rule(1.0+0.0)x*
.........\kern8.5
.........\hbox(0.0+0.0)x0.0
..........\trip r
........\hbox(0.0+0.0)x0.0, shifted -7.0
.......\vbox(7.0+11.0)x7.0, shifted -9.0
........\hbox(7.0+1.0)x3.0
.........\trip A
........\hbox(8.0+2.0)x3.0
.........\trip B
......\vbox(-1.00002+22.99995)x7.0, shifted -18.99998
.......\hbox(-1.00002+2.0)x7.0
........\trip ^^@
.......\hbox(-1.00002+2.0)x7.0
........\trip ^^@
.......\hbox(7.0+1.0)x3.0
........\trip A
.......\hbox(-1.00002+2.0)x7.0
........\trip ^^@
.......\hbox(-1.00002+2.0)x7.0
........\trip ^^@
.......\hbox(8.0+2.0)x3.0
........\trip B
...\hbox(0.0+0.0)x0.0, shifted -7.0
..\vbox(-1.00002+48.99956)x7.0, shifted -31.99979
...\hbox(-1.00002+2.0)x7.0
....\trip ^^@
...\hbox(-1.00002+2.0)x7.0
....\trip ^^@
...\hbox(-1.00002+2.0)x7.0
....\trip ^^@
...\hbox(-1.00002+2.0)x7.0
....\trip ^^@
...\hbox(-1.00002+2.0)x7.0
....\trip ^^@
...\hbox(-1.00002+2.0)x7.0
....\trip ^^@
...\hbox(-1.00002+2.0)x7.0
....\trip ^^@
...\hbox(-1.00002+2.0)x7.0
....\trip ^^@
...\hbox(-1.00002+2.0)x7.0
....\trip ^^@
...\hbox(-1.00002+2.0)x7.0
....\trip ^^@
...\hbox(-1.00002+2.0)x7.0
....\trip ^^@
...\hbox(-1.00002+2.0)x7.0
....\trip ^^@
...\hbox(-1.00002+2.0)x7.0
....\trip ^^@
...\hbox(-1.00002+2.0)x7.0
....\trip ^^@
...\hbox(-1.00002+2.0)x7.0
....\trip ^^@
...\hbox(7.0+1.0)x3.0
....\trip A
...\hbox(-1.00002+2.0)x7.0
....\trip ^^@
...\hbox(-1.00002+2.0)x7.0
....\trip ^^@
...\hbox(-1.00002+2.0)x7.0
....\trip ^^@
...\hbox(-1.00002+2.0)x7.0
....\trip ^^@
...\hbox(-1.00002+2.0)x7.0
....\trip ^^@
...\hbox(-1.00002+2.0)x7.0
....\trip ^^@
...\hbox(-1.00002+2.0)x7.0
....\trip ^^@
...\hbox(-1.00002+2.0)x7.0
....\trip ^^@
...\hbox(-1.00002+2.0)x7.0
....\trip ^^@
...\hbox(-1.00002+2.0)x7.0
....\trip ^^@
...\hbox(-1.00002+2.0)x7.0
....\trip ^^@
...\hbox(-1.00002+2.0)x7.0
....\trip ^^@
...\hbox(-1.00002+2.0)x7.0
....\trip ^^@
...\hbox(-1.00002+2.0)x7.0
....\trip ^^@
...\hbox(-1.00002+2.0)x7.0
....\trip ^^@
...\hbox(8.0+2.0)x3.0
....\trip B
.\vbox(-1.00002+48.99956)x7.0, shifted -31.99979
..\hbox(-1.00002+2.0)x7.0
...\trip ^^@
..\hbox(-1.00002+2.0)x7.0
...\trip ^^@
..\hbox(-1.00002+2.0)x7.0
...\trip ^^@
..\hbox(-1.00002+2.0)x7.0
...\trip ^^@
..\hbox(-1.00002+2.0)x7.0
...\trip ^^@
..\hbox(-1.00002+2.0)x7.0
...\trip ^^@
..\hbox(-1.00002+2.0)x7.0
...\trip ^^@
..\hbox(-1.00002+2.0)x7.0
...\trip ^^@
..\hbox(-1.00002+2.0)x7.0
...\trip ^^@
..\hbox(-1.00002+2.0)x7.0
...\trip ^^@
..\hbox(-1.00002+2.0)x7.0
...\trip ^^@
..\hbox(-1.00002+2.0)x7.0
...\trip ^^@
..\hbox(-1.00002+2.0)x7.0
...\trip ^^@
..\hbox(-1.00002+2.0)x7.0
...\trip ^^@
..\hbox(-1.00002+2.0)x7.0
...\trip ^^@
..\hbox(7.0+1.0)x3.0
...\trip A
..\hbox(-1.00002+2.0)x7.0
...\trip ^^@
..\hbox(-1.00002+2.0)x7.0
...\trip ^^@
..\hbox(-1.00002+2.0)x7.0
...\trip ^^@
..\hbox(-1.00002+2.0)x7.0
...\trip ^^@
..\hbox(-1.00002+2.0)x7.0
...\trip ^^@
..\hbox(-1.00002+2.0)x7.0
...\trip ^^@
..\hbox(-1.00002+2.0)x7.0
...\trip ^^@
..\hbox(-1.00002+2.0)x7.0
...\trip ^^@
..\hbox(-1.00002+2.0)x7.0
...\trip ^^@
..\hbox(-1.00002+2.0)x7.0
...\trip ^^@
..\hbox(-1.00002+2.0)x7.0
...\trip ^^@
..\hbox(-1.00002+2.0)x7.0
...\trip ^^@
..\hbox(-1.00002+2.0)x7.0
...\trip ^^@
..\hbox(-1.00002+2.0)x7.0
...\trip ^^@
..\hbox(-1.00002+2.0)x7.0
...\trip ^^@
..\hbox(8.0+2.0)x3.0
...\trip B
\mathoff
spacefactor 1000
### vertical mode entered at line 0
prevdepth 0.0

! OK.
l.530     $\showlists
                     


### restricted horizontal mode entered at line 532
\mathon
\hbox(17.0+3.00002)x19.00002
.\hbox(14.00002+2.0)x6.00002, shifted -0.99998
..\bigtrip a
.\hbox(16.0+4.00002)x6.0, shifted -1.0
..\bigtrip B
.\trip p
.\hbox(0.0+0.0)x0.0, shifted -16.5
.\vbox(-1.00002+20.99998)x7.0, shifted -18.0
..\hbox(-1.00002+2.0)x7.0
...\trip ^^@
..\hbox(7.0+1.0)x3.0
...\trip A
..\hbox(-1.00002+2.0)x7.0
...\trip ^^@
..\hbox(8.0+2.0)x3.0
...\trip B
\mathoff
spacefactor 1000
### vertical mode entered at line 0
prevdepth 0.0

! OK.
l.534     \raise16.5pt\hbox{}\right]$\showlists
                                               }


### restricted horizontal mode entered at line 535
\mathon
\hbox(17.99997+3.99997)x19.00002
.\hbox(14.00002+2.0)x6.00002, shifted -0.99998
..\bigtrip a
.\hbox(0.0+0.0)x0.0, shifted 3.0
.\hbox(16.0+4.00002)x6.0, shifted -1.0
..\bigtrip B
.\trip s
.\vbox(-1.00002+22.99995)x7.0, shifted -18.99998
..\hbox(-1.00002+2.0)x7.0
...\trip ^^@
..\hbox(-1.00002+2.0)x7.0
...\trip ^^@
..\hbox(7.0+1.0)x3.0
...\trip A
..\hbox(-1.00002+2.0)x7.0
...\trip ^^@
..\hbox(-1.00002+2.0)x7.0
...\trip ^^@
..\hbox(8.0+2.0)x3.0
...\trip B
\mathoff
spacefactor 1000
### vertical mode entered at line 0
prevdepth 0.0

! OK.
l.537     \right]$\showlists
                            }

Checking TeX--XeT enhancements:

\endL or \endR problem (0 missing, 1 extra) in paragraph at lines 550--550
[][][][][][] 

\hbox(0.0+0.0)x10.0, glue set 3.5fil
.\hbox(0.0+0.0)x0.5
.\beginL
.\beginR
.\kern 3.0
.\penalty 0
.\hbox(0.0+0.0)x0.0
.\kern 3.0
.\kern 0.0
.\endR
.\endL
.\penalty 10000
.\glue(\parfillskip) 0.0 plus 1.0fil
.\glue(\rightskip) 0.0


\endL or \endR problem (0 missing, 2 extra) in paragraph at lines 551--551
[] 

\hbox(0.0+0.0)x10.0, glue set 5.5fil
.\hbox(0.0+0.0)x0.5
.\kern 0.0
.\kern 4.0
.\kern 0.0
.\penalty 10000
.\glue(\parfillskip) 0.0 plus 1.0fil
.\glue(\rightskip) 0.0

> \box0=
\vbox(0.0+0.0)x10.0
.\hbox(0.0+0.0)x10.0, glue set 8.5fil
..\hbox(0.0+0.0)x0.5
..\beginL
..\kern 1.0
..\penalty 10000
..\glue(\parfillskip) 0.0 plus 1.0fil
..\endL
..\glue(\rightskip) 0.0
.\glue(\parskip) 0.0
.\glue(\baselineskip) 0.0
.\hbox(0.0+0.0)x10.0, glue set 7.5fil
..\hbox(0.0+0.0)x0.5
..\beginR
..\kern 2.0
..\penalty 10000
..\glue(\parfillskip) 0.0 plus 1.0fil
..\endR
..\glue(\rightskip) 0.0
.\glue(\parskip) 0.0
.\glue(\baselineskip) 0.0
.\hbox(0.0+0.0)x10.0, glue set 3.5fil
..\hbox(0.0+0.0)x0.5
..\beginL
..\beginR
..\kern 3.0
..\penalty 0
..\hbox(0.0+0.0)x0.0
..\kern 3.0
..\kern 0.0
..\endR
..\endL
..\penalty 10000
..\glue(\parfillskip) 0.0 plus 1.0fil
..\glue(\rightskip) 0.0
.\glue(\parskip) 0.0
.\glue(\baselineskip) 0.0
.\hbox(0.0+0.0)x10.0, glue set 5.5fil
..\hbox(0.0+0.0)x0.5
..\kern 0.0
..\kern 4.0
..\kern 0.0
..\penalty 10000
..\glue(\parfillskip) 0.0 plus 1.0fil
..\glue(\rightskip) 0.0

! OK.
l.552   \showbox0
                 

Checking optimized \aftergroup:
! Undefined control sequence.
<to be read again> \x 
                      }{\relax 
l.564 ...aftergroup}\aftergroup{\aftergroup\relax}
                                                  }
The control sequence at the end of the top line
of your error message was never \def'ed. If you have
misspelled it (e.g., `\hobx'), type `I' and the correct
spelling (e.g., `I\hbox'). Otherwise just continue,
and I'll forget about whatever was undefined.

Checking \showifs, \currentiftype, \currentiflevel, and \currentifbranch:
\currentifbranch OK
current if level (l.583): 0
current if level (l.584): 1
current if level (l.585): 2
current if type (l.603): \if!NONE
current if branch (l.603): no branch
current if type (l.604): \if
current if branch (l.604): true branch
current if type (l.604): \unless\if
current if branch (l.604): false branch
current if type (l.605): \if
current if branch (l.605): false branch
current if type (l.605): \unless\if
current if branch (l.605): true branch
current if type (l.606): \ifcat
current if branch (l.606): true branch
current if type (l.606): \unless\ifcat
current if branch (l.606): false branch
current if type (l.607): \ifcat
current if branch (l.607): false branch
current if type (l.607): \unless\ifcat
current if branch (l.607): true branch
current if type (l.608): \ifnum
current if branch (l.608): true branch
current if type (l.608): \unless\ifnum
current if branch (l.608): true branch
current if type (l.609): \ifdim
current if branch (l.609): false branch
current if type (l.609): \unless\ifdim
current if branch (l.609): true branch
current if type (l.610): \ifodd
current if branch (l.610): true branch
current if type (l.610): \unless\ifodd
current if branch (l.610): false branch
current if type (l.612): \ifvmode
current if branch (l.612): true branch
current if type (l.612): \unless\ifvmode
current if branch (l.612): false branch
current if type (l.615): \ifhmode
current if branch (l.615): true branch
current if type (l.615): \unless\ifhmode
current if branch (l.615): false branch
current if type (l.617): \ifmmode
current if branch (l.617): true branch
current if type (l.617): \unless\ifmmode
current if branch (l.617): false branch
current if type (l.619): \ifinner
current if branch (l.619): true branch
current if type (l.621): \unless\ifinner
current if branch (l.621): true branch
current if type (l.622): \ifvoid
current if branch (l.622): true branch
current if type (l.622): \unless\ifvoid
current if branch (l.622): true branch
current if type (l.623): \ifhbox
current if branch (l.623): true branch
current if type (l.623): \unless\ifhbox
current if branch (l.623): true branch
current if type (l.624): \ifvbox
current if branch (l.624): true branch
current if type (l.624): \unless\ifvbox
current if branch (l.624): true branch
current if type (l.625): \ifx
current if branch (l.625): false branch
current if type (l.625): \unless\ifx
current if branch (l.625): true branch
current if type (l.626): \ifeof
current if branch (l.626): true branch
current if type (l.626): \unless\ifeof
current if branch (l.626): false branch
current if type (l.627): \iftrue
current if branch (l.627): true branch
current if type (l.627): \unless\iftrue
current if branch (l.627): false branch
current if type (l.628): \iffalse
current if branch (l.628): false branch
current if type (l.628): \unless\iffalse
current if branch (l.628): true branch
current if type (l.629): \ifcase
current if branch (l.629): true branch
current if type (l.629): \ifcase
current if branch (l.629): false branch
current if type (l.630): \ifdefined
current if branch (l.630): true branch
current if type (l.630): \unless\ifdefined
current if branch (l.630): true branch
current if type (l.631): \ifcsname
current if branch (l.631): true branch
current if type (l.632): \unless\ifcsname
current if branch (l.632): true branch
current if type (l.633): \iffontchar
current if branch (l.633): true branch
current if type (l.633): \unless\iffontchar
current if branch (l.633): true branch
{math mode: \ifcsname: (level 41) entered on line 649}
{\unless\ifcsname: (level 42) entered on line 649}
{\iffontchar: (level 43) entered on line 650}
{\unless\iffontchar: (level 44) entered on line 650}

### level 44: \unless\iffontchar entered on line 650
### level 43: \iffontchar entered on line 650
### level 42: \unless\ifcsname entered on line 649
### level 41: \ifcsname entered on line 649
### level 40: \unless\ifdefined entered on line 647
### level 39: \ifdefined entered on line 647
### level 38: \ifcase\else entered on line 646
### level 37: \ifcase entered on line 646
### level 36: \unless\iffalse entered on line 645
### level 35: \iffalse\else entered on line 645
### level 34: \unless\iftrue\else entered on line 645
### level 33: \iftrue entered on line 645
### level 32: \unless\ifx entered on line 644
### level 31: \ifx\else entered on line 644
### level 30: \unless\ifeof\else entered on line 643
### level 29: \ifeof entered on line 643
### level 28: \unless\ifvbox entered on line 643
### level 27: \ifvbox entered on line 643
### level 26: \unless\ifhbox entered on line 642
### level 25: \ifhbox entered on line 642
### level 24: \unless\ifvoid entered on line 642
### level 23: \ifvoid entered on line 642
### level 22: \unless\ifinner\else entered on line 641
### level 21: \ifinner entered on line 641
### level 20: \unless\ifmmode\else entered on line 641
### level 19: \ifmmode entered on line 641
### level 18: \unless\ifhmode\else entered on line 640
### level 17: \ifhmode entered on line 640
### level 16: \unless\ifvmode\else entered on line 639
### level 15: \ifvmode entered on line 639
### level 14: \unless\ifodd\else entered on line 638
### level 13: \ifodd entered on line 638
### level 12: \unless\ifdim entered on line 637
### level 11: \ifdim\else entered on line 637
### level 10: \unless\ifnum entered on line 637
### level 9: \ifnum entered on line 637
### level 8: \unless\ifcat entered on line 636
### level 7: \ifcat\else entered on line 636
### level 6: \unless\ifcat\else entered on line 636
### level 5: \ifcat entered on line 636
### level 4: \unless\if entered on line 635
### level 3: \if\else entered on line 635
### level 2: \unless\if\else entered on line 635
### level 1: \if entered on line 635

! OK.
l.651                   \showifs
                                 % <== show 44 nested ifs

{\fi: \unless\iffontchar (level 44) entered on line 650}
{\fi: \iffontchar (level 43) entered on line 650}
{\fi: \unless\ifcsname (level 42) entered on line 649}
{\fi: \ifcsname (level 41) entered on line 649}
Checking \iffontchar, \fontcharwd, etc.:
! Missing font identifier.
<to be read again> 
                   \relax 
...
l.674   \iffontchar \else
                          \fi    % <== missing font identifier and number
I was looking for a control sequence whose
current meaning has been defined by \font.

! Missing number, treated as zero.
<to be read again> 
                   \relax 
...
l.674   \iffontchar \else
                          \fi    % <== missing font identifier and number
A number should have been here; I inserted `0'.
(If you can't figure out why I needed to see a number,
look up `weird error' in the index to The TeXbook.)

! Bad character code (-1).
l.675   \iffontchar\textfont2 -1 
                                 \else \fi    % <== bad character code
A Unicode scalar value must be between 0 and "10FFFF.
I changed this one to zero.

! You can't use `\fontcharwd' in vertical mode.
l.677   \fontcharwd
                    \fontcharht \fontchardp \fontcharic    % <== can't use
Sorry, but I'm not programmed to handle this case;
I'll just pretend that you didn't ask for it.
If you're in the wrong mode, you might be able to
return to the right one by typing `I}' or `I$' or `I\par'.

! You can't use `\fontcharht' in vertical mode.
l.677   \fontcharwd \fontcharht
                                \fontchardp \fontcharic    % <== can't use
Sorry, but I'm not programmed to handle this case;
I'll just pretend that you didn't ask for it.
If you're in the wrong mode, you might be able to
return to the right one by typing `I}' or `I$' or `I\par'.

! You can't use `\fontchardp' in vertical mode.
l.677   \fontcharwd \fontcharht \fontchardp
                                            \fontcharic    % <== can't use
Sorry, but I'm not programmed to handle this case;
I'll just pretend that you didn't ask for it.
If you're in the wrong mode, you might be able to
return to the right one by typing `I}' or `I$' or `I\par'.

! You can't use `\fontcharic' in vertical mode.
l.677 ...harwd \fontcharht \fontchardp \fontcharic
                                                      % <== can't use
Sorry, but I'm not programmed to handle this case;
I'll just pretend that you didn't ask for it.
If you're in the wrong mode, you might be able to
return to the right one by typing `I}' or `I$' or `I\par'.

Font \font character A: wd=2.0pt ht=7.0pt dp=1.0pt ic=1.0pt
Font \textfont1 character B: wd=3.0pt ht=8.0pt dp=2.0pt
Font \scriptfont2 character B: wd=1.5pt ht=4.0pt dp=1.0pt
Font \scriptscriptfont3 character B: wd=6.0pt ht=16.0pt dp=4.00002pt
Font \trip character 7:
Font \trip character D does not exist
Font \nullfont character D does not exist
Font \font has 23 characters.
Font \trip has 23 characters.
Font \nullfont has 0 characters.
Checking \parshapelength, \parshapeindent, and \parshapedimen:
! You can't use `\parshapelength' in vertical mode.
l.701   \parshapelength
                        \parshapeindent \parshapedimen    % <== can't use
Sorry, but I'm not programmed to handle this case;
I'll just pretend that you didn't ask for it.
If you're in the wrong mode, you might be able to
return to the right one by typing `I}' or `I$' or `I\par'.

! You can't use `\parshapeindent' in vertical mode.
l.701   \parshapelength \parshapeindent
                                        \parshapedimen    % <== can't use
Sorry, but I'm not programmed to handle this case;
I'll just pretend that you didn't ask for it.
If you're in the wrong mode, you might be able to
return to the right one by typing `I}' or `I$' or `I\par'.

! You can't use `\parshapedimen' in vertical mode.
l.701 ...hapelength \parshapeindent \parshapedimen
                                                      % <== can't use
Sorry, but I'm not programmed to handle this case;
I'll just pretend that you didn't ask for it.
If you're in the wrong mode, you might be able to
return to the right one by typing `I}' or `I$' or `I\par'.

Parshape test 1 OK
Parshape test 2 OK
Parshape test 3 OK
Parshape test 4 OK
Checking \numexpr, \dimexpr, \glueexpr, and \muexpr:
! You can't use `\numexpr' in vertical mode.
l.765   \numexpr
                 \dimexpr \glueexpr \muexpr    % <== can't use
Sorry, but I'm not programmed to handle this case;
I'll just pretend that you didn't ask for it.
If you're in the wrong mode, you might be able to
return to the right one by typing `I}' or `I$' or `I\par'.

! You can't use `\dimexpr' in vertical mode.
l.765   \numexpr \dimexpr
                          \glueexpr \muexpr    % <== can't use
Sorry, but I'm not programmed to handle this case;
I'll just pretend that you didn't ask for it.
If you're in the wrong mode, you might be able to
return to the right one by typing `I}' or `I$' or `I\par'.

! You can't use `\glueexpr' in vertical mode.
l.765   \numexpr \dimexpr \glueexpr
                                    \muexpr    % <== can't use
Sorry, but I'm not programmed to handle this case;
I'll just pretend that you didn't ask for it.
If you're in the wrong mode, you might be able to
return to the right one by typing `I}' or `I$' or `I\par'.

! You can't use `\muexpr' in vertical mode.
l.765   \numexpr \dimexpr \glueexpr \muexpr
                                               % <== can't use
Sorry, but I'm not programmed to handle this case;
I'll just pretend that you didn't ask for it.
If you're in the wrong mode, you might be able to
return to the right one by typing `I}' or `I$' or `I\par'.

! Missing ) inserted for expression.
<to be read again> 
                   \9
l.767   \count43=\numexpr ( ( 2 \9
                                             \dimen43=\dimexpr ( 3pt \9
I was expecting to see `+', `-', `*', `/', or `)'. Didn't.

! Missing ) inserted for expression.
<to be read again> 
                   \9
l.767   \count43=\numexpr ( ( 2 \9
                                             \dimen43=\dimexpr ( 3pt \9
I was expecting to see `+', `-', `*', `/', or `)'. Didn't.

! Missing ) inserted for expression.
<to be read again> 
                   \9
l.767 ...2 \9           \dimen43=\dimexpr ( 3pt \9
                                                  
I was expecting to see `+', `-', `*', `/', or `)'. Didn't.

\numexpr \count 43=2
\dimexpr \dimen 43=3.0pt
\glueexpr \skip 43=4.0pt plus 3.0fil
\muexpr \muskip 43=5.0mu minus 1.0mu
! Dimension too large.
l.780       \dimen45=\skip44 
                                            \dimen45=\dimexpr1sp*\skip44\9
I can't work with sizes bigger than about 19 feet.
Continue and I'll use the largest value I can.

! Arithmetic overflow.
<recently read> \9
                  
l.780 ...           \dimen45=\dimexpr1sp*\skip44\9
                                                  
I can't evaluate this expression,
since the result is out of range.

! Dimension too large.
l.782       \dimen45=\skip44 
                                            \dimen45=\dimexpr1sp*\skip44\9
I can't work with sizes bigger than about 19 feet.
Continue and I'll use the largest value I can.

! Arithmetic overflow.
<recently read> \9
                  
l.782 ...           \dimen45=\dimexpr1sp*\skip44\9
                                                  
I can't evaluate this expression,
since the result is out of range.

! Arithmetic overflow.
<recently read> \9
                  
l.783     \count44=\numexpr"7FFFFFFE+2\9
                                            \dimen44=\dimexpr"3FFFFFFEsp+2sp\9
I can't evaluate this expression,
since the result is out of range.

! Arithmetic overflow.
<recently read> \9
                  
l.783 ...2\9    \dimen44=\dimexpr"3FFFFFFEsp+2sp\9
                                                  
I can't evaluate this expression,
since the result is out of range.

! Arithmetic overflow.
<recently read> \9
                  
l.784     \count44=\numexpr-"7FFFFFFE-2\9
                                            \dimen44=\dimexpr-"3FFFFFFEsp-2sp\9
I can't evaluate this expression,
since the result is out of range.

! Arithmetic overflow.
<recently read> \9
                  
l.784 ...2\9   \dimen44=\dimexpr-"3FFFFFFEsp-2sp\9
                                                  
I can't evaluate this expression,
since the result is out of range.

! Arithmetic overflow.
<recently read> \9
                  
l.785     \count44=\numexpr"10000*"8000\9
                                            \dimen44=\dimexpr"8000sp*"8000\9
I can't evaluate this expression,
since the result is out of range.

! Arithmetic overflow.
<recently read> \9
                  
l.785 ...8000\9   \dimen44=\dimexpr"8000sp*"8000\9
                                                  
I can't evaluate this expression,
since the result is out of range.

! Arithmetic overflow.
<recently read> \9
                  
l.786     \count44=\numexpr"10000*-"8000\9
                                            \dimen44=\dimexpr"8000sp*-"8000\9
I can't evaluate this expression,
since the result is out of range.

! Arithmetic overflow.
<recently read> \9
                  
l.786 ...8000\9  \dimen44=\dimexpr"8000sp*-"8000\9
                                                  
I can't evaluate this expression,
since the result is out of range.

! Arithmetic overflow.
<recently read> \9
                  
l.787     \count44=\numexpr-"10000*"8000\9
                                            \dimen44=\dimexpr-"8000sp*"8000\9
I can't evaluate this expression,
since the result is out of range.

! Arithmetic overflow.
<recently read> \9
                  
l.787 ...8000\9  \dimen44=\dimexpr-"8000sp*"8000\9
                                                  
I can't evaluate this expression,
since the result is out of range.

! Arithmetic overflow.
<recently read> \9
                  
l.788     \count44=\numexpr-"10000*-"8000\9
                                            \dimen44=\dimexpr-"8000sp*-"8000\9
I can't evaluate this expression,
since the result is out of range.

! Arithmetic overflow.
<recently read> \9
                  
l.788 ...8000\9 \dimen44=\dimexpr-"8000sp*-"8000\9
                                                  
I can't evaluate this expression,
since the result is out of range.

! Arithmetic overflow.
<recently read> \9
                  
l.789     \count44=\numexpr0/0\9
                                            \dimen44=\dimexpr0pt/0\9
I can't evaluate this expression,
since the result is out of range.

! Arithmetic overflow.
<recently read> \9
                  
l.789 ...0/0\9            \dimen44=\dimexpr0pt/0\9
                                                  
I can't evaluate this expression,
since the result is out of range.

! Arithmetic overflow.
<recently read> \9
                  
l.790     \count44=\numexpr1/0\9
                                            \dimen44=\dimexpr1pt/0\9
I can't evaluate this expression,
since the result is out of range.

! Arithmetic overflow.
<recently read> \9
                  
l.790 ...1/0\9            \dimen44=\dimexpr1pt/0\9
                                                  
I can't evaluate this expression,
since the result is out of range.

! Arithmetic overflow.
<recently read> \9
                  
l.791     \count44=\numexpr-1/0\9
                                            \dimen44=\dimexpr-1pt/0\9
I can't evaluate this expression,
since the result is out of range.

! Arithmetic overflow.
<recently read> \9
                  
l.791 ...1/0\9           \dimen44=\dimexpr-1pt/0\9
                                                  
I can't evaluate this expression,
since the result is out of range.

Expr quotient rounding 1 OK
Expr quotient rounding 2 OK
Expr quotient rounding 3 OK
Expr quotient rounding 4 OK
! Incompatible glue units.
<recently read> \9
                  
...
l.831   \15{32}{5}{6}
                        % <== three mu_error's (! Incompatible glue units)
I'm going to assume that 1mu=1pt when they're mixed.

! Incompatible glue units.
<to be read again> 
                   p
...
l.831   \15{32}{5}{6}
                        % <== three mu_error's (! Incompatible glue units)
I'm going to assume that 1mu=1pt when they're mixed.

! Incompatible glue units.
<recently read> \relax 
                       
...
l.831   \15{32}{5}{6}
                        % <== three mu_error's (! Incompatible glue units)
I'm going to assume that 1mu=1pt when they're mixed.

Expr quotient rounding 5 OK
! Incompatible glue units.
<recently read> \9
                  
...
l.832   \16{33}{5}{7}
                        % <== three mu_error's (! Incompatible glue units)
I'm going to assume that 1mu=1pt when they're mixed.

! Incompatible glue units.
<to be read again> 
                   p
...
l.832   \16{33}{5}{7}
                        % <== three mu_error's (! Incompatible glue units)
I'm going to assume that 1mu=1pt when they're mixed.

! Incompatible glue units.
<recently read> \relax 
                       
...
l.832   \16{33}{5}{7}
                        % <== three mu_error's (! Incompatible glue units)
I'm going to assume that 1mu=1pt when they're mixed.

Expr quotient rounding 6 OK
! Incompatible glue units.
<recently read> \9
                  
...
l.833   \17{25}{4}{6}
                        % <== three mu_error's (! Incompatible glue units)
I'm going to assume that 1mu=1pt when they're mixed.

! Incompatible glue units.
<to be read again> 
                   p
...
l.833   \17{25}{4}{6}
                        % <== three mu_error's (! Incompatible glue units)
I'm going to assume that 1mu=1pt when they're mixed.

! Incompatible glue units.
<recently read> \relax 
                       
...
l.833   \17{25}{4}{6}
                        % <== three mu_error's (! Incompatible glue units)
I'm going to assume that 1mu=1pt when they're mixed.

Expr quotient rounding 7 OK
! Incompatible glue units.
<recently read> \9
                  
...
l.834   \18{26}{4}{7}
                        % <== three mu_error's (! Incompatible glue units)
I'm going to assume that 1mu=1pt when they're mixed.

! Incompatible glue units.
<to be read again> 
                   p
...
l.834   \18{26}{4}{7}
                        % <== three mu_error's (! Incompatible glue units)
I'm going to assume that 1mu=1pt when they're mixed.

! Incompatible glue units.
<recently read> \relax 
                       
...
l.834   \18{26}{4}{7}
                        % <== three mu_error's (! Incompatible glue units)
I'm going to assume that 1mu=1pt when they're mixed.

Expr quotient rounding 8 OK
Expr fraction rounding 1 OK
Expr fraction rounding 2 OK
! Arithmetic overflow.
<to be read again> 
                   =
\1...4)/(#5)\else \2#1 \fi \ifdim \dimexpr 1sp*#6=
                                                  \dimexpr (#3sp)*(#4)/(#5)\...
l.862     \1mn 1 "7FFFFFFF 2 "40000000
                                      
I can't evaluate this expression,
since the result is out of range.

! Arithmetic overflow.
<inserted text> \relax 
                       
<to be read again> 
                   \else 
\1...imexpr 1sp*#6=\dimexpr (#3sp)*(#4)/(#5)\else 
                                                  \2#2 \fi 
l.862     \1mn 1 "7FFFFFFF 2 "40000000
                                      
I can't evaluate this expression,
since the result is out of range.

Expr fraction rounding 3 OK
[1] [1]
Checking \mutoglue and \gluetomu:
! You can't use `\mutoglue' in vertical mode.
l.905   \mutoglue
                  \gluetomu    % <== can't use
Sorry, but I'm not programmed to handle this case;
I'll just pretend that you didn't ask for it.
If you're in the wrong mode, you might be able to
return to the right one by typing `I}' or `I$' or `I\par'.

! You can't use `\gluetomu' in vertical mode.
l.905   \mutoglue \gluetomu
                               % <== can't use
Sorry, but I'm not programmed to handle this case;
I'll just pretend that you didn't ask for it.
If you're in the wrong mode, you might be able to
return to the right one by typing `I}' or `I$' or `I\par'.

! Incompatible glue units.
l.907   \skip2=\gluetomu\muskip1 
                                  % <== two mu_error's (! Incompatible glue ...
I'm going to assume that 1mu=1pt when they're mixed.

! Incompatible glue units.
l.907   \skip2=\gluetomu\muskip1 
                                  % <== two mu_error's (! Incompatible glue ...
I'm going to assume that 1mu=1pt when they're mixed.

! Incompatible glue units.
l.908   \muskip2=\mutoglue\skip1 
                                  % <== two mu_error's (! Incompatible glue ...
I'm going to assume that 1mu=1pt when they're mixed.

! Incompatible glue units.
l.908   \muskip2=\mutoglue\skip1 
                                  % <== two mu_error's (! Incompatible glue ...
I'm going to assume that 1mu=1pt when they're mixed.

Checking (mu)glue identity:
Checking \gluestretchorder, \glueshrinkorder, \gluestretch, and \glueshrink:
! You can't use `\gluestretchorder' in vertical mode.
l.932   \gluestretchorder
                          \gluestretch    % <== can't use
Sorry, but I'm not programmed to handle this case;
I'll just pretend that you didn't ask for it.
If you're in the wrong mode, you might be able to
return to the right one by typing `I}' or `I$' or `I\par'.

! You can't use `\gluestretch' in vertical mode.
l.932   \gluestretchorder \gluestretch
                                          % <== can't use
Sorry, but I'm not programmed to handle this case;
I'll just pretend that you didn't ask for it.
If you're in the wrong mode, you might be able to
return to the right one by typing `I}' or `I$' or `I\par'.

! You can't use `\glueshrinkorder' in vertical mode.
l.933   \glueshrinkorder
                         \glueshrink    % <== can't use
Sorry, but I'm not programmed to handle this case;
I'll just pretend that you didn't ask for it.
If you're in the wrong mode, you might be able to
return to the right one by typing `I}' or `I$' or `I\par'.

! You can't use `\glueshrink' in vertical mode.
l.933   \glueshrinkorder \glueshrink
                                        % <== can't use
Sorry, but I'm not programmed to handle this case;
I'll just pretend that you didn't ask for it.
If you're in the wrong mode, you might be able to
return to the right one by typing `I}' or `I$' or `I\par'.

Checking sparse arrays:
! Bad register code (-1).
<to be read again> 
                   \countdef 
...
l.970   \2\countdef
                    % Bad register code (-1) ...and (32768).
A register number must be between 0 and 32767.
I changed this one to zero.

! Bad register code (32768).
<to be read again> 
                   \countdef 
...
l.970   \2\countdef
                    % Bad register code (-1) ...and (32768).
A register number must be between 0 and 32767.
I changed this one to zero.

\count32767=0.
! Bad register code (-1).
<to be read again> 
                   \dimendef 
...
l.971   \2\dimendef
                    % Bad register code (-1) ...and (32768).
A register number must be between 0 and 32767.
I changed this one to zero.

! Bad register code (32768).
<to be read again> 
                   \dimendef 
...
l.971   \2\dimendef
                    % Bad register code (-1) ...and (32768).
A register number must be between 0 and 32767.
I changed this one to zero.

\dimen32767=0.0pt.
! Bad register code (-1).
<to be read again> 
                   \skipdef 
...
l.972   \2\skipdef
                   % Bad register code (-1) ...and (32768).
A register number must be between 0 and 32767.
I changed this one to zero.

! Bad register code (32768).
<to be read again> 
                   \skipdef 
...
l.972   \2\skipdef
                   % Bad register code (-1) ...and (32768).
A register number must be between 0 and 32767.
I changed this one to zero.

\skip32767=0.0pt.
! Bad register code (-1).
<to be read again> 
                   \muskipdef 
...
l.973   \2\muskipdef
                     % Bad register code (-1) ...and (32768).
A register number must be between 0 and 32767.
I changed this one to zero.

! Bad register code (32768).
<to be read again> 
                   \muskipdef 
...
l.973   \2\muskipdef
                     % Bad register code (-1) ...and (32768).
A register number must be between 0 and 32767.
I changed this one to zero.

\muskip32767=0.0mu.
! Bad register code (-1).
<to be read again> 
                   \toksdef 
...
l.974   \2\toksdef
                   % Bad register code (-1) ...and (32768).
A register number must be between 0 and 32767.
I changed this one to zero.

! Bad register code (32768).
<to be read again> 
                   \toksdef 
...
l.974   \2\toksdef
                   % Bad register code (-1) ...and (32768).
A register number must be between 0 and 32767.
I changed this one to zero.

\toks32767=.
> \9=\dimen256.
l.981 ...256\relax \let\9=\8 \let\8=\relax \show\9
                                                  

testing count registers ...
\count2000=0,
 \count2001=5,
 \count2002=7,
 \count2002=7.
\count2000=5,
 \count2002=12,
 \count2002=12.
\count2000=50,
 \count2002=120,
 \count2002=120.
\count2000=10,
 \count2002=24,
 \count2002=24.
testing dimen registers ...
\dimen2000=0.0pt,
 \dimen2001=2.5pt,
 \dimen2002=3.5pt,
 \dimen2002=3.5pt.
\dimen2000=2.5pt,
 \dimen2002=6.0pt,
 \dimen2002=6.0pt.
\dimen2000=25.0pt,
 \dimen2002=60.0pt,
 \dimen2002=60.0pt.
\dimen2000=5.0pt,
 \dimen2002=12.0pt,
 \dimen2002=12.0pt.
testing skip registers ...
\skip2000=0.0pt,
 \skip2001=2.5pt plus 1.0fil,
 \skip2002=3.5pt minus 1.0fill,
 \skip2002=3.5pt minus 1.0fill.
\skip2000=2.5pt plus 1.0fil,
 \skip2002=6.0pt plus 1.0fil minus 1.0fill,
 \skip2002=6.0pt plus 1.0fil minus 1.0fill.
\skip2000=25.0pt plus 10.0fil,
 \skip2002=60.0pt plus 10.0fil minus 10.0fill,
 \skip2002=60.0pt plus 10.0fil minus 10.0fill.
\skip2000=5.0pt plus 2.0fil,
 \skip2002=12.0pt plus 2.0fil minus 2.0fill,
 \skip2002=12.0pt plus 2.0fil minus 2.0fill.
testing muskip registers ...
\muskip2000=0.0mu,
 \muskip2001=2.5mu plus 1.0fil,
 \muskip2002=3.5mu minus 1.0fill,
 \muskip2002=3.5mu minus 1.0fill.
\muskip2000=2.5mu plus 1.0fil,
 \muskip2002=6.0mu plus 1.0fil minus 1.0fill,
 \muskip2002=6.0mu plus 1.0fil minus 1.0fill.
\muskip2000=25.0mu plus 10.0fil,
 \muskip2002=60.0mu plus 10.0fil minus 10.0fill,
 \muskip2002=60.0mu plus 10.0fil minus 10.0fill.
\muskip2000=5.0mu plus 2.0fil,
 \muskip2002=12.0mu plus 2.0fil minus 2.0fill,
 \muskip2002=12.0mu plus 2.0fil minus 2.0fill.
testing toks registers ...
\toks2000=,
 \toks2001=a b c,
 \toks2002=d e f,
 \toks2002=d e f.
testing box registers ...
! Bad mathchar (-1).
<to be read again> 
                   \mathchardef 
...
l.1024   \2\mathchardef
                        % Bad mathchar (-1) ...and (32768).
A mathchar number must be between 0 and 32767.
I changed this one to zero.

! Bad mathchar (32768).
<to be read again> 
                   \mathchardef 
...
l.1024   \2\mathchardef
                        % Bad mathchar (-1) ...and (32768).
A mathchar number must be between 0 and 32767.
I changed this one to zero.

\mathchar"7FFF=32767.
! Bad register code (-1).
<to be read again> 
                   =
l.1025   \setbox-1=
                   \copy32768 % Bad register code (-1) ...and (32768).
A register number must be between 0 and 32767.
I changed this one to zero.

! Bad register code (32768).
l.1025   \setbox-1=\copy32768 
                              % Bad register code (-1) ...and (32768).
A register number must be between 0 and 32767.
I changed this one to zero.

! Bad register code (32768).
<to be read again> 
                   =
l.1026   \global\setbox32768=
                             \copy-1 % Bad register code (32768) ...and (-1).
A register number must be between 0 and 32767.
I changed this one to zero.

! Bad register code (-1).
l.1026   \global\setbox32768=\copy-1 
                                     % Bad register code (32768) ...and (-1).
A register number must be between 0 and 32767.
I changed this one to zero.

! Bad register code (32768).
<to be read again> 
                   =
l.1027   \wd32768=
                  \ht-1 % Bad register code (32768) ...and (-1).
A register number must be between 0 and 32767.
I changed this one to zero.

! Bad register code (-1).
l.1027   \wd32768=\ht-1 
                        % Bad register code (32768) ...and (-1).
A register number must be between 0 and 32767.
I changed this one to zero.

! Bad register code (-1).
l.1028   \showbox-1 
                    % Bad register code (-1).
A register number must be between 0 and 32767.
I changed this one to zero.

> \box0=void

! OK.
l.1028   \showbox-1 
                    % Bad register code (-1).


### vtop group (level 4) entered at line 1041 (\setbox32103=\vtop to7.0pt{)
### vbox group (level 3) entered at line 1040 (\global\setbox32102=\vbox to5.0p
t{)
### hbox group (level 2) entered at line 1039 (\setbox32101=\hbox to3.0pt{)
### semi simple group (level 1) entered at line 1021 (\begingroup)
### bottom level

! OK.
l.1042           \showgroups
                            

> \box32100=void

! OK.
l.1046   \showbox32100
                      

> \box32101=
\hbox(0.0+0.0)x3.0

! OK.
l.1047   \showbox32101
                      

\box32101=\hbox,wd=3.0pt.
\box32102=\vbox,ht=5.0pt.
\box32103=void.
\box32101=\hbox,wd=3.0pt.
\box32103=\hbox,wd=3.0pt.
\box32102=void.
\box32104=\vbox,ht=5.0pt.
\box32101=\hbox,ht=2.0pt,wd=3.0pt.
\box32102=void.
\box32103=\hbox,dp=6.0pt,wd=3.0pt.
\box32104=\vbox,ht=5.0pt,wd=8.0pt.
\box32105=\hbox,ht=1.0pt,wd=5.0pt.
\box32105=\hbox,ht=1.0pt,wd=5.0pt.
\box32105=void.
\box32105=void.
\box32106=\hbox,ht=1.0pt,wd=10.0pt.
\box32105=\vbox,ht=5.0pt,wd=1.0pt.
\box32105=\vbox,ht=5.0pt,wd=1.0pt.
\box32105=void.
\box32105=void.
\box32106=\vbox,ht=10.0pt,wd=1.0pt.
\box32105=\vbox,ht=30.0pt.
\box32106=\vbox,ht=10.0pt.
\box32105=\vbox,ht=20.0pt.
Checking \lastlinefit:
> \box0=
\vbox(0.0+0.0)x96.0
.\hbox(0.0+0.0)x96.0, glue set - 0.5 []
.\glue(\baselineskip) 0.0
.\hbox(0.0+0.0)x96.0, glue set 31.0fill []

! OK.
\1...x 0=\vbox {\noindent \2\2\2\2\3\2}\showbox 0 
                                                  \setbox 0=\vbox {\unvbox 0...
l.1081     \lastlinefit=-1 \1
                             

> \box0=
\hbox(0.0+0.0)x96.0, glue set 31.0fill
.\hbox(0.0+0.0)x30.0
.\glue 5.0 plus 20.0 minus 4.0
.\hbox(0.0+0.0)x30.0
.\penalty 10000
.\glue(\parfillskip) 0.0 plus 1.0fill
.\glue(\rightskip) 0.0

! OK.
\1...box {\unvbox 0 \setbox 0=\lastbox \showbox 0 
                                                  }
l.1081     \lastlinefit=-1 \1
                             

> \box0=
\vbox(0.0+0.0)x96.0
.\hbox(0.0+0.0)x96.0, glue set - 0.5 []
.\glue(\baselineskip) 0.0
.\hbox(0.0+0.0)x96.0, glue set - 0.25 []

! OK.
\1...x 0=\vbox {\noindent \2\2\2\2\3\2}\showbox 0 
                                                  \setbox 0=\vbox {\unvbox 0...
l.1082     \lastlinefit=500 \1
                              

> \box0=
\hbox(0.0+0.0)x96.0, glue set - 0.25
.\hbox(0.0+0.0)x30.0
.\glue 5.0 plus 20.0 minus 4.0
.\hbox(0.0+0.0)x30.0
.\penalty 10000
.\glue(\parfillskip) 32.0
.\glue(\rightskip) 0.0

! OK.
\1...box {\unvbox 0 \setbox 0=\lastbox \showbox 0 
                                                  }
l.1082     \lastlinefit=500 \1
                              

> \box0=
\vbox(0.0+0.0)x96.0
.\hbox(0.0+0.0)x96.0, glue set - 0.5 []
.\glue(\baselineskip) 0.0
.\hbox(0.0+0.0)x96.0, glue set - 0.5 []

! OK.
\1...x 0=\vbox {\noindent \2\2\2\2\3\2}\showbox 0 
                                                  \setbox 0=\vbox {\unvbox 0...
l.1083     \lastlinefit=1001 \1
                               

> \box0=
\hbox(0.0+0.0)x96.0, glue set - 0.5
.\hbox(0.0+0.0)x30.0
.\glue 5.0 plus 20.0 minus 4.0
.\hbox(0.0+0.0)x30.0
.\penalty 10000
.\glue(\parfillskip) 33.0
.\glue(\rightskip) 0.0

! OK.
\1...box {\unvbox 0 \setbox 0=\lastbox \showbox 0 
                                                  }
l.1083     \lastlinefit=1001 \1
                               

> \box0=
\vbox(0.0+0.0)x98.0
.\hbox(0.0+0.0)x98.0, glue set 68.0fill []
.\glue(\baselineskip) 0.0
.\hbox(0.0+0.0)x98.0, glue set 68.0fill []
.\glue(\baselineskip) 0.0
.\hbox(0.0+0.0)x98.0, glue set 68.0fill []
.\glue(\baselineskip) 0.0
.\hbox(0.0+0.0)x98.0, glue set 68.0fill []
.\glue(\baselineskip) 0.0
.\hbox(0.0+0.0)x98.0, glue set 34.0fill []

! OK.
\1...x 0=\vbox {\noindent \2\2\2\2\3\2}\showbox 0 
                                                  \setbox 0=\vbox {\unvbox 0...
l.1087       \lastlinefit=1000 \1
                                 

> \box0=
\hbox(0.0+0.0)x98.0, glue set 34.0fill
.\hbox(0.0+0.0)x30.0
.\penalty 10000
.\glue(\parfillskip) 0.0 plus 1.0fill
.\glue(\rightskip) 0.0 plus 1.0fill

! OK.
\1...box {\unvbox 0 \setbox 0=\lastbox \showbox 0 
                                                  }
l.1087       \lastlinefit=1000 \1
                                 

> \box0=
\vbox(0.0+0.0)x98.0
.\hbox(0.0+0.0)x98.0, glue set - 0.25 []
.\glue(\baselineskip) 0.0
.\hbox(0.0+0.0)x98.0, glue set - 0.125 []

! OK.
\1...x 0=\vbox {\noindent \2\2\2\2\3\2}\showbox 0 
                                                  \setbox 0=\vbox {\unvbox 0...
l.1089       \lastlinefit=500 \1
                                

> \box0=
\hbox(0.0+0.0)x98.0, glue set - 0.125
.\glue(\leftskip) 0.0 plus -1.0fill
.\hbox(0.0+0.0)x30.0
.\glue 5.0 plus 20.0 minus 4.0
.\hbox(0.0+0.0)x30.0
.\penalty 10000
.\glue(\parfillskip) 33.5
.\glue(\rightskip) 0.0 plus 1.0fill

! OK.
\1...box {\unvbox 0 \setbox 0=\lastbox \showbox 0 
                                                  }
l.1089       \lastlinefit=500 \1
                                

> \box0=
\vbox(0.0+0.0)x98.0
.\hbox(0.0+0.0)x98.0, glue set - 0.25 []
.\glue(\baselineskip) 0.0
.\hbox(0.0+0.0)x98.0, glue set - 0.25 []

! OK.
\1...x 0=\vbox {\noindent \2\2\2\2\3\2}\showbox 0 
                                                  \setbox 0=\vbox {\unvbox 0...
l.1091     \lastlinefit=1000 \1
                               

> \box0=
\hbox(0.0+0.0)x98.0, glue set - 0.25
.\hbox(0.0+0.0)x30.0
.\glue 5.0 plus 20.0 minus 4.0
.\hbox(0.0+0.0)x30.0
.\penalty 10000
.\glue(\parfillskip) 34.0
.\glue(\rightskip) 0.0

! OK.
\1...box {\unvbox 0 \setbox 0=\lastbox \showbox 0 
                                                  }
l.1091     \lastlinefit=1000 \1
                               

> \box0=
\vbox(0.0+0.0)x100.0
.\hbox(0.0+0.0)x100.0 []
.\glue(\baselineskip) 0.0
.\hbox(0.0+0.0)x100.0, glue set 35.0fill []

! OK.
\1...x 0=\vbox {\noindent \2\2\2\2\3\2}\showbox 0 
                                                  \setbox 0=\vbox {\unvbox 0...
l.1093     \lastlinefit=0 \1
                            

> \box0=
\hbox(0.0+0.0)x100.0, glue set 35.0fill
.\hbox(0.0+0.0)x30.0
.\glue 5.0 plus 20.0 minus 4.0
.\hbox(0.0+0.0)x30.0
.\penalty 10000
.\glue(\parfillskip) 0.0 plus 1.0fill
.\glue(\rightskip) 0.0

! OK.
\1...box {\unvbox 0 \setbox 0=\lastbox \showbox 0 
                                                  }
l.1093     \lastlinefit=0 \1
                            

> \box0=
\vbox(0.0+0.0)x100.0
.\hbox(0.0+0.0)x100.0 []
.\glue(\baselineskip) 0.0
.\hbox(0.0+0.0)x100.0, glue set 35.0fill []

! OK.
\1...x 0=\vbox {\noindent \2\2\2\2\3\2}\showbox 0 
                                                  \setbox 0=\vbox {\unvbox 0...
l.1094     \lastlinefit=500 \1
                              

> \box0=
\hbox(0.0+0.0)x100.0, glue set 35.0fill
.\hbox(0.0+0.0)x30.0
.\glue 5.0 plus 20.0 minus 4.0
.\hbox(0.0+0.0)x30.0
.\penalty 10000
.\glue(\parfillskip) 0.0 plus 1.0fill
.\glue(\rightskip) 0.0

! OK.
\1...box {\unvbox 0 \setbox 0=\lastbox \showbox 0 
                                                  }
l.1094     \lastlinefit=500 \1
                              

> \box0=
\vbox(0.0+0.0)x100.0
.\hbox(0.0+0.0)x100.0 []
.\glue(\baselineskip) 0.0
.\hbox(0.0+0.0)x100.0, glue set 35.0fill []

! OK.
\1...x 0=\vbox {\noindent \2\2\2\2\3\2}\showbox 0 
                                                  \setbox 0=\vbox {\unvbox 0...
l.1095     \lastlinefit=1000 \1
                               

> \box0=
\hbox(0.0+0.0)x100.0, glue set 35.0fill
.\hbox(0.0+0.0)x30.0
.\glue 5.0 plus 20.0 minus 4.0
.\hbox(0.0+0.0)x30.0
.\penalty 10000
.\glue(\parfillskip) 0.0 plus 1.0fill
.\glue(\rightskip) 0.0

! OK.
\1...box {\unvbox 0 \setbox 0=\lastbox \showbox 0 
                                                  }
l.1095     \lastlinefit=1000 \1
                               

> \box0=
\vbox(0.0+0.0)x110.0
.\hbox(0.0+0.0)x110.0, glue set 0.25 []
.\glue(\baselineskip) 0.0
.\hbox(0.0+0.0)x110.0, glue set 45.0fill []

! OK.
\1...x 0=\vbox {\noindent \2\2\2\2\3\2}\showbox 0 
                                                  \setbox 0=\vbox {\unvbox 0...
l.1099       \lastlinefit=1000 \1
                                 

> \box0=
\hbox(0.0+0.0)x110.0, glue set 45.0fill
.\hbox(0.0+0.0)x30.0
.\glue 5.0 plus 20.0 minus 4.0
.\glue 0.0 plus 1.0fil
.\hbox(0.0+0.0)x30.0
.\penalty 10000
.\glue(\parfillskip) 0.0 plus 1.0fill
.\glue(\rightskip) 0.0

! OK.
\1...box {\unvbox 0 \setbox 0=\lastbox \showbox 0 
                                                  }
l.1099       \lastlinefit=1000 \1
                                 

> \box0=
\vbox(0.0+0.0)x110.0
.\hbox(0.0+0.0)x110.0, glue set 0.25 []
.\glue(\baselineskip) 0.0
.\hbox(0.0+0.0)x110.0, glue set 0.125 []

! OK.
\1...x 0=\vbox {\noindent \2\2\2\2\3\2}\showbox 0 
                                                  \setbox 0=\vbox {\unvbox 0...
l.1101     \lastlinefit=500 \1
                              

> \box0=
\hbox(0.0+0.0)x110.0, glue set 0.125
.\hbox(0.0+0.0)x30.0
.\glue 5.0 plus 20.0 minus 4.0
.\hbox(0.0+0.0)x30.0
.\penalty 10000
.\glue(\parfillskip) 42.5
.\glue(\rightskip) 0.0

! OK.
\1...box {\unvbox 0 \setbox 0=\lastbox \showbox 0 
                                                  }
l.1101     \lastlinefit=500 \1
                              

> \box0=
\vbox(0.0+0.0)x110.0
.\hbox(0.0+0.0)x110.0, glue set 0.25 []
.\glue(\baselineskip) 0.0
.\hbox(0.0+0.0)x110.0, glue set 0.25 []

! OK.
\1...x 0=\vbox {\noindent \2\2\2\2\3\2}\showbox 0 
                                                  \setbox 0=\vbox {\unvbox 0...
l.1102     \lastlinefit=1000 \1
                               

> \box0=
\hbox(0.0+0.0)x110.0, glue set 0.25
.\hbox(0.0+0.0)x30.0
.\glue 5.0 plus 20.0 minus 4.0
.\hbox(0.0+0.0)x30.0
.\penalty 10000
.\glue(\parfillskip) 40.0
.\glue(\rightskip) 0.0

! OK.
\1...box {\unvbox 0 \setbox 0=\lastbox \showbox 0 
                                                  }
l.1102     \lastlinefit=1000 \1
                               

> \box0=
\vbox(0.0+0.0)x120.0
.\hbox(0.0+0.0)x120.0, glue set 0.5 []
.\glue(\baselineskip) 0.0
.\hbox(0.0+0.0)x120.0, glue set 55.0fill []

! OK.
\1...x 0=\vbox {\noindent \2\2\2\2\3\2}\showbox 0 
                                                  \setbox 0=\vbox {\unvbox 0...
l.1104     \lastlinefit=0 \1
                            

> \box0=
\hbox(0.0+0.0)x120.0, glue set 55.0fill
.\hbox(0.0+0.0)x30.0
.\glue 5.0 plus 20.0 minus 4.0
.\hbox(0.0+0.0)x30.0
.\penalty 10000
.\glue(\parfillskip) 0.0 plus 1.0fill
.\glue(\rightskip) 0.0

! OK.
\1...box {\unvbox 0 \setbox 0=\lastbox \showbox 0 
                                                  }
l.1104     \lastlinefit=0 \1
                            

> \box0=
\vbox(0.0+0.0)x120.0
.\hbox(0.0+0.0)x120.0, glue set 0.5 []
.\glue(\baselineskip) 0.0
.\hbox(0.0+0.0)x120.0, glue set 0.25 []

! OK.
\1...x 0=\vbox {\noindent \2\2\2\2\3\2}\showbox 0 
                                                  \setbox 0=\vbox {\unvbox 0...
l.1105     \lastlinefit=500 \1
                              

> \box0=
\hbox(0.0+0.0)x120.0, glue set 0.25
.\hbox(0.0+0.0)x30.0
.\glue 5.0 plus 20.0 minus 4.0
.\hbox(0.0+0.0)x30.0
.\penalty 10000
.\glue(\parfillskip) 50.0
.\glue(\rightskip) 0.0

! OK.
\1...box {\unvbox 0 \setbox 0=\lastbox \showbox 0 
                                                  }
l.1105     \lastlinefit=500 \1
                              

> \box0=
\vbox(0.0+0.0)x120.0
.\hbox(0.0+0.0)x120.0, glue set 0.5 []
.\glue(\baselineskip) 0.0
.\hbox(0.0+0.0)x120.0, glue set 0.5 []

! OK.
\1...x 0=\vbox {\noindent \2\2\2\2\3\2}\showbox 0 
                                                  \setbox 0=\vbox {\unvbox 0...
l.1106     \lastlinefit=1000 \1
                               

> \box0=
\hbox(0.0+0.0)x120.0, glue set 0.5
.\hbox(0.0+0.0)x30.0
.\glue 5.0 plus 20.0 minus 4.0
.\hbox(0.0+0.0)x30.0
.\penalty 10000
.\glue(\parfillskip) 45.0
.\glue(\rightskip) 0.0

! OK.
\1...box {\unvbox 0 \setbox 0=\lastbox \showbox 0 
                                                  }
l.1106     \lastlinefit=1000 \1
                               

Checking expansion of V 2 \protected macros:
\1 (l.1115)
\1 (l.1115)
relax (l.1117)
relax (l.1117)
Checking hyphenation and \savinghyphcodes:

Underfull \hbox (badness 10000) in paragraph at lines 1134--1134
 []\trip pp1āAqq []pp1āAqq []pp1āA1āqq []pp1āAqq []ppAqq

\hbox(7.0+1.0)x16383.99998, glue set 1635.4 []


Underfull \hbox (badness 10000) in paragraph at lines 1134--1134
 []\trip up1āAqq []up1āAqq []up1āA1āqq []up1āAqq []upAqq

\hbox(7.0+1.0)x16383.99998, glue set 1635.4 []


Underfull \hbox (badness 10000) in paragraph at lines 1134--1134
 []\trip ppB1āqq []ppB1āqq []ppB1āqq []pp1āB1āqq []ppBqq

\hbox(8.0+2.0)x16383.99998, glue set 1634.9 []


Underfull \hbox (badness 10000) in paragraph at lines 1134--1134
 []\trip upB1āqq []upB1āqq []upB1āqq []up1āB1āqq []upBqq

\hbox(8.0+2.0)x16383.99998, glue set 1634.9 []


Underfull \hbox (badness 10000) in paragraph at lines 1136--1136
 []\trip pp1āA1āqq []pp1āAqq []pp1āA1āqq []pp1āAqq []ppAqq

\hbox(7.0+1.0)x16383.99998, glue set 1635.4 []


Underfull \hbox (badness 10000) in paragraph at lines 1136--1136
 []\trip up1āA1āqq []up1āAqq []up1āA1āqq []up1āAqq []upAqq

\hbox(7.0+1.0)x16383.99998, glue set 1635.4 []


Underfull \hbox (badness 10000) in paragraph at lines 1136--1136
 []\trip ppB1āqq []ppB1āqq []ppB1āqq []pp1āB1āqq []ppBqq

\hbox(8.0+2.0)x16383.99998, glue set 1634.9 []


Underfull \hbox (badness 10000) in paragraph at lines 1136--1136
 []\trip upB1āqq []upB1āqq []upB1āqq []up1āB1āqq []upBqq

\hbox(8.0+2.0)x16383.99998, glue set 1634.9 []


Underfull \hbox (badness 10000) in paragraph at lines 1138--1138
 []\trip pp1āAqq []pp1āAqq []pp1āA1āqq []pp1āAqq []ppAqq

\hbox(7.0+1.0)x16383.99998, glue set 1635.4 []


Underfull \hbox (badness 10000) in paragraph at lines 1138--1138
 []\trip up1āAqq []up1āAqq []up1āA1āqq []up1āAqq []upAqq

\hbox(7.0+1.0)x16383.99998, glue set 1635.4 []


Underfull \hbox (badness 10000) in paragraph at lines 1138--1138
 []\trip pp1āB1āqq []ppB1āqq []ppB1āqq []pp1āB1āqq []ppBqq

\hbox(8.0+2.0)x16383.99998, glue set 1634.9 []


Underfull \hbox (badness 10000) in paragraph at lines 1138--1138
 []\trip up1āB1āqq []upB1āqq []upB1āqq []up1āB1āqq []upBqq

\hbox(8.0+2.0)x16383.99998, glue set 1634.9 []


Underfull \hbox (badness 10000) in paragraph at lines 1140--1140
 []\trip qq1āapp []qq1āapp []qqapp []qq1āapp []qqapp

\hbox(7.0+1.0)x16383.99998, glue set 1635.4 []


Underfull \hbox (badness 10000) in paragraph at lines 1140--1140
 []\trip qqb1āpp []qqb1āpp []qqb1āpp []qqb1āpp []qqbpp

\hbox(8.0+2.0)x16383.99998, glue set 1634.9 []


Underfull \hbox (badness 10000) in paragraph at lines 1140--1140
 []\trip qqrpp []qqrpp []qq1ār1āpp []qq1ār1āpp []qqrpp

\hbox(0.0+0.0)x16383.99998, glue set 1634.9 []

Checking \savingvdiscards, \pagediscards, and \splitdiscards:
! Missing $ inserted.
<inserted text> 
                $
...
l.1148   \setbox27=\vbox{\noindent$\splitdiscards
                                                 \noindent$\pagediscards}
I've inserted a begin-math/end-math symbol since I think
you left one out. Proceed, with fingers crossed.

! Missing $ inserted.
<inserted text> 
                $
...
l.1148 ...nt$\splitdiscards\noindent$\pagediscards
                                                  }
I've inserted a begin-math/end-math symbol since I think
you left one out. Proceed, with fingers crossed.

> \box27=
\vbox(0.0+0.0)x0.0
.\hbox(0.0+0.0)x0.0
..\mathon
..\mathoff
..\penalty 10000
..\glue(\parfillskip) 0.0
..\glue(\rightskip) 0.0
.\glue(\parskip) 0.0
.\glue(\baselineskip) 0.0
.\hbox(0.0+0.0)x0.0
..\mathon
..\mathoff
..\penalty 10000
..\glue(\parfillskip) 0.0
..\glue(\rightskip) 0.0

! OK.
l.1149   \showbox27
                   

> \box0=
\vbox(40.0+0.0)x0.0
.\vbox(20.0+0.0)x0.0
..\vbox(20.0+0.0)x0.0
..\openout0=abc
..\penalty 0
..\write1{write 1}
.\vbox(20.0+0.0)x0.0
..\write2{write 2}
..\closeout3
..\glue(\splittopskip) 0.0
..\vbox(20.0+0.0)x0.0
..\glue 0.0 plus 1.0fil

! OK.
\1...10000 pt \splitdiscards \box 28 } \showbox 0 
                                                  } 
l.1177   \1 -1 20 
                    \1 0 30    \1 1 20    \1 2 30

> \box0=
\vbox(50.0+0.0)x0.0
.\vbox(30.0+0.0)x0.0
..\vbox(20.0+0.0)x0.0
..\openout0=abc
..\penalty 0
..\write1{write 1}
..\glue 10.0 plus 1.0 minus 1.0
..\write2{write 2}
.\vbox(20.0+0.0)x0.0
..\closeout3
..\glue(\splittopskip) 0.0
..\vbox(20.0+0.0)x0.0
..\glue 0.0 plus 1.0fil

! OK.
\1...10000 pt \splitdiscards \box 28 } \showbox 0 
                                                  } 
l.1177   \1 -1 20   \1 0 30 
                               \1 1 20    \1 2 30

> \box0=
\vbox(60.0+0.0)x0.0
.\vbox(20.0+0.0)x0.0
..\vbox(20.0+0.0)x0.0
..\openout0=abc
..\penalty 0
..\write1{write 1}
.\glue 10.0 plus 1.0 minus 1.0
.\penalty 0
.\kern 10.0
.\vbox(20.0+0.0)x0.0
..\write2{write 2}
..\closeout3
..\glue(\splittopskip) 0.0
..\vbox(20.0+0.0)x0.0
..\glue 0.0 plus 1.0fil

! OK.
\1...10000 pt \splitdiscards \box 28 } \showbox 0 
                                                  } 
l.1177   \1 -1 20   \1 0 30    \1 1 20 
                                          \1 2 30

> \box0=
\vbox(60.0+0.0)x0.0
.\vbox(30.0+0.0)x0.0
..\vbox(20.0+0.0)x0.0
..\openout0=abc
..\penalty 0
..\write1{write 1}
..\glue 10.0 plus 1.0 minus 1.0
..\write2{write 2}
.\penalty 0
.\kern 10.0
.\vbox(20.0+0.0)x0.0
..\closeout3
..\glue(\splittopskip) 0.0
..\vbox(20.0+0.0)x0.0
..\glue 0.0 plus 1.0fil

! OK.
\1...10000 pt \splitdiscards \box 28 } \showbox 0 
                                                  } 
l.1177   \1 -1 20   \1 0 30    \1 1 20    \1 2 30
                                                 


### internal vertical mode entered at line 1186
prevdepth ignored
### vertical mode entered at line 0
### recent contributions:
\glue 0.0 plus 1.0fil
\kern 20.0
prevdepth 0.0

! OK.
\1->{\setbox 0 = \vbox { \pagediscards \showlists 
                                                  }}
l.1186   \savingvdiscards = 0 \vfil \kern 20 pt \1
                                                   \penalty -1 \1


### internal vertical mode entered at line 1186
prevdepth ignored
### vertical mode entered at line 0
prevdepth 0.0

! OK.
\1->{\setbox 0 = \vbox { \pagediscards \showlists 
                                                  }}
l.1186 ... = 0 \vfil \kern 20 pt \1 \penalty -1 \1
                                                  


### internal vertical mode entered at line 1187
prevdepth ignored
### vertical mode entered at line 0
### recent contributions:
\glue 0.0 plus 1.0fill
\kern 2.0
prevdepth 0.0

! OK.
\1->{\setbox 0 = \vbox { \pagediscards \showlists 
                                                  }}
l.1187   \savingvdiscards = 1 \vfill \kern 2 pt \1
                                                   \penalty 10 \1


### internal vertical mode entered at line 1187
\glue 0.0 plus 1.0fill
\kern 2.0
\penalty 10
prevdepth ignored
### vertical mode entered at line 0
prevdepth 0.0

! OK.
\1->{\setbox 0 = \vbox { \pagediscards \showlists 
                                                  }}
l.1187 ... = 1 \vfill \kern 2 pt \1 \penalty 10 \1
                                                  

> \box0=
\vbox(12.0+0.0)x0.0
.\kern 5.0
.\penalty 0
.\kern 7.0
.\glue(\baselineskip) 0.0

! OK.
<output> ... = \vbox { \pagediscards } \showbox 0 
                                                  \showbox 255 \setbox 0 = \...
l.1192 ... pt \write 3 {} \hbox {} \penalty -10000
                                                  

> \box255=
\vbox(0.0+0.0)x0.0
.\write1{}
.\write2{}
.\write3{}
.\glue(\topskip) 0.0
.\hbox(0.0+0.0)x0.0

! OK.
<output> ...agediscards } \showbox 0 \showbox 255 
                                                  \setbox 0 = \box 255 \glob...
l.1192 ... pt \write 3 {} \hbox {} \penalty -10000
                                                  


### internal vertical mode entered at line 1193
\penalty 10000
prevdepth ignored
### vertical mode entered at line 0
prevdepth 0.0

! OK.
\1->{\setbox 0 = \vbox { \pagediscards \showlists 
                                                  }}
l.1193   \1
           

Checking \interlinepenalties, \clubpenalties, \widowpenalties, and \displaywido
wpenalties:
\interlinepenalties=0
\clubpenalties=0
\widowpenalties=0
\displaywidowpenalties=0
\interlinepenalties-1=0
\interlinepenalties0=0
\interlinepenalties5=0
\interlinepenalties\interlinepenalties0=0
\clubpenalties-1=0
\clubpenalties0=0
\clubpenalties5=0
\clubpenalties\clubpenalties0=0
\widowpenalties-1=0
\widowpenalties0=0
\widowpenalties5=0
\widowpenalties\widowpenalties0=0
\displaywidowpenalties-1=0
\displaywidowpenalties0=0
\displaywidowpenalties5=0
\displaywidowpenalties\displaywidowpenalties0=0
\interlinepenalties=3 101 102 103
\clubpenalties=4 201 202 203 204
\widowpenalties=5 301 302 303 304 305
\displaywidowpenalties=6 401 402 403 404 405 406
\interlinepenalties-1=0
\interlinepenalties0=3
\interlinepenalties5=103
\interlinepenalties\interlinepenalties0=103
\clubpenalties-1=0
\clubpenalties0=4
\clubpenalties5=204
\clubpenalties\clubpenalties0=204
\widowpenalties-1=0
\widowpenalties0=5
\widowpenalties5=305
\widowpenalties\widowpenalties0=305
\displaywidowpenalties-1=0
\displaywidowpenalties0=6
\displaywidowpenalties5=405
\displaywidowpenalties\displaywidowpenalties0=406
Checking hyphenation of LR and RL segments:

Overfull \hbox (15.0pt too wide) in paragraph at lines 1256--1256
 \trip MM1

\hbox(0.0+0.0)x0.0, glue set - 1.0
.\glue 4.0 plus 2.0 minus 1.0
.\trip M
.\trip M
.\discretionary
.\trip 1
.\trip 7 (ligature |)
.\glue(\rightskip) 0.0


Overfull \hbox (12.0pt too wide) in paragraph at lines 1256--1256
\trip āMM

\hbox(0.0+0.0)x0.0
.\trip ā
.\trip M
.\trip M
.\glue(\rightskip) 0.0


Overfull \hbox (12.0pt too wide) in paragraph at lines 1256--1256
[]\trip MM1[]

\hbox(0.0+0.0)x0.0
.\beginL
.\trip M
.\trip M
.\discretionary
.\trip 1
.\trip 7 (ligature |)
.\endL
.\glue(\rightskip) 0.0


Overfull \hbox (12.0pt too wide) in paragraph at lines 1256--1256
[]\trip āMM[]

\hbox(0.0+0.0)x0.0
.\beginL
.\trip ā
.\trip M
.\trip M
.\endL
.\glue(\rightskip) 0.0


Overfull \hbox (12.0pt too wide) in paragraph at lines 1256--1256
[]\trip MM1[]

\hbox(0.0+0.0)x0.0
.\beginL
.\trip M
.\trip M
.\discretionary
.\trip 1
.\trip 7 (ligature |)
.\endL
.\glue(\rightskip) 0.0


Overfull \hbox (12.0pt too wide) in paragraph at lines 1256--1256
[]\trip āMM[]

\hbox(0.0+0.0)x0.0
.\beginL
.\trip ā
.\trip M
.\trip M
.\endL
.\glue(\rightskip) 0.0


Overfull \hbox (12.0pt too wide) in paragraph at lines 1256--1256
[]\trip MM1[]

\hbox(0.0+0.0)x0.0
.\beginL
.\trip M
.\trip M
.\discretionary
.\trip 1
.\trip 7 (ligature |)
.\endL
.\glue(\rightskip) 0.0


Overfull \hbox (12.0pt too wide) in paragraph at lines 1256--1256
[]\trip āMM[]

\hbox(0.0+0.0)x0.0
.\beginL
.\trip ā
.\trip M
.\trip M
.\endL
.\glue(\rightskip) 0.0


Overfull \hbox (12.0pt too wide) in paragraph at lines 1256--1256
[]\trip MM1[]

\hbox(0.0+0.0)x0.0
.\beginR
.\trip M
.\trip M
.\discretionary
.\trip 1
.\trip 7 (ligature |)
.\endR
.\glue(\rightskip) 0.0


Overfull \hbox (12.0pt too wide) in paragraph at lines 1256--1256
[]\trip āMM[]

\hbox(0.0+0.0)x0.0
.\beginR
.\trip ā
.\trip M
.\trip M
.\endR
.\penalty 10000
.\glue(\parfillskip) 0.0
.\glue(\rightskip) 0.0

 )
Output written on etrip.xdv (3 pages, 268 bytes).