formats - file formats of the Tina ToolboxPart of Tina Toolbox for analysis of Petri nets and Time Petri nets.
Description
The .net format
The .ndr format
The .tpn format
The .pnml format
The .tts format
The .ktz format
The .aut format
The .bcg format
The .mec format
The .adr format
The .ltl format
The .mmc format
The .scn format
Examples
See Also
Authors
This page describe the formats of files used by the Tina tools.
Time Petri nets formats, input of tina/sift/rsdd/struct/plan/play/ndrio/nd:net.txt .net Time Petri nets textual format ndr.txt .ndr Time Petri nets graphic format tpn.txt .tpn Time Petri nets script format pnml.txt .pnml Time Petri nets pnml format
Time Transition System format, input of tina/sift/rsdd/struct/plan/play (not supported by ndrio nor nd):
tts.txt .tts Time Transition System format
Transition system formats, output of tina:
aut.txt .aut Transition systems textual format (CADP format) ktz.txt .ktz Kripke transition systems binary format (tina) bcg.txt .bcg Transition systems binary format (tina for CADP) mec.txt .mec Kripke transition systems textual format (tina for MEC4)
Other formats:
adr.txt .adr Transition systems graphic format (nd) ltl.txt .ltl SE-LTL model checker commands (selt) mmc.txt .ltl Mu-calculus model checker commands (muse) scn.txt .scn Format of firing sequences and firing schedules, (selt, plan, play, nd stepper history files)
This is the textual description format of Time Petri nets.
A net is described by a series of declarations of places, transitions and/or notes, and an optional naming declaration for the net. The net described is the superposition of these declarations. The grammar of .net declarations is the following, in which nonterminals are bracketed by < .. >, terminals are in upper case or quoted. Spaces, carriage return and tabs act as separators.
Optionally, labels may be assigned to places and transitions. This should be preferably done within "tr" and "pl" declarations rather than using separate "lb" declarations. The later form ("lb") is kept for backward compatibility and might disappear in future releases.
Grammar:
.net ::= (<trdesc>|<pldesc>|<lbdesc>|<prdesc>|<ntdesc>|<netdesc>)* netdesc ::= ’net’ <net> trdesc ::= ’tr’ <transition> {":" <label>} {<interval>} {<tinput> -> <toutput>} pldesc ::= ’pl’ <place> {":" <label>} {(<marking>)} {<pinput> -> <poutput>} ntdesc ::= ’nt’ <note> (’0’|’1’) <annotation> lbdesc ::= ’lb’ [<place>|<transition>] <label> prdesc ::= ’pr’ (<transition>)+ ("<"|">") (<transition>)+ interval ::= (’[’|’]’)INT’,’INT(’[’|’]’) | (’[’|’]’)INT’,’w[’ tinput ::= <place>{<arc>} toutput ::= <place>{<normal_arc>} pinput ::= <transition>{<normal_arc>} poutput ::= <transition>{arc} arc ::= <normal_arc> | <test_arc> | <inhibitor_arc> | <stopwatch_arc> | <stopwatch-inhibitor_arc> normal_arc ::= ’*’<weight> test_arc ::= ’?’<weight> inhibitor_arc ::= ’?-’<weight> stopwatch_arc ::= ’!’<weight> stopwatch-inhibitor_arc ::= ’!-’<weight> weight, marking ::= INT{’K’|’M’} net, place, transition, label, note, annotation ::= ANAME | ’{’QNAME’}’ INT ::= unsigned integer ANAME ::= alphanumeric name, see Notes below QNAME ::= arbitrary name, see Notes belowNotes:
Two forms are admitted for net, place and transition names:
- ANAME : any non empty string of letters, digits, primes ’ and underscores _
- ’{’QNAME’}’ : any chain between braces, and in which characters {, }, and \ are prefixed by \Empty lines and lines beginning with ’#’ are considered comments.
In any closed temporal interval [eft,lft], one must have eft <= lft.
The letter ’K’ (resp. ’M’) following a weight or marking multiplies it by 10^3 (resp. 10^6).
Weight is optional for normal arcs, but mandatory for test and inhibitor arcs
By default:
- transitions have temporal interval [0,w[
- normal arcs have weight 1
- places have marking 0
- places and transitions have the empty label "{}"When several labels are assigned to some node, only the last assigned is kept.
Format ndr is the format of graphic files produced by the nd editor. A net is described by a series of declarations of places, transitions and edges, followed by a net name declaration. The net described is the superposition of these declarations.
Grammar :
.ndr ::= (<trdesc>|<pldesc>)* (<edgedesc>|<prdesc>|<ntdesc>)* <netdesc> trdesc ::= ’t’ <xpos> <ypos> <transition> <eft> <lft> <anchor> | ’t’ <xpos> <ypos> <transition> <anchor> <eft> <lft> <anchor> <label> <anchor> pldesc ::= ’p’ <xpos> <ypos> <place> <marking> <anchor> {<label> <anchor>} ntdesc ::= ’n’ <xpos> <ypos> <note> (’0’|’1’) <annotation> edgedesc ::= ’e’ <place> <transition> {<arckind>}<weight> <anchor> | ’e’ <place> <ang> <rad> <transition> <ang> <rad> {<arckind>}<weight> <anchor> | ’e’ <transition> <place> <weight> <anchor> | ’e’ <transition> <ang> <rad> <place> <ang> <rad> <weight> <anchor> prdesc ::= ’e’ <transition> <transition> 1 <anchor> | ’e’ <transition> <ang> <rad> <transition> <ang> <rad> 1 <anchor> netdesc ::= ’h’ <net> {<nodesize> {<bgcolor>}} eft ::= {-}INT lft ::= {-}INT | ’w’ weight, marking ::= INT{’K’|’M’} arckind ::= ’?’ // test (read) arc | ’?-’ // inhibitor | ’!’ // stopwatch | ’!-’ // stopwatch-inhibitor xpos, ypos, rad ::= FLOAT ang ::= UFLOAT net, place, transition, label, note, annotation ::= ANAME | ’{’QNAME’}’ anchor ::= ’n’ | ’nw’ | ’w’ | ’sw’ | ’s’ | ’se’ | ’e’ | ’ne’ | ’c’ FLOAT ::= unsigned float (without exponent) UFLOAT ::= unsigned float between 0 and 1 (without exponent) INT ::= unsigned integer ANAME ::= see notes below QNAME ::= see notes below <nodesize> ::= ’small’ | ’normal’ | ’large’ <bgcolor> ::= any tcl-tk colorNotes:
Node declarations must precede edge declarations.
The last declaration must be the netname declaration (h).
Empty lines and lines beginning with ’#’are considered comments.
A ’-’ starting an eft or lft denotes an open interval end.
In any transition declaration, one must have ‘lft >= ‘eft or lft = ’w’, where ‘e denotes e if e>=0, or (-e)-1 otherwise
If eft = lft, then they may not be both negative (intervals may not be empty).
The letter ’K’ (resp. ’M’) following a weight or marking multiplies it by 10^3 (resp. 10^6).
Two forms are admitted for net, place and transition names:
- ANAME : any non empty string of letters, digits, primes ’ and underscores _
- ’{’QNAME’}’ : any chain between braces, and in which characters {, }, and \ are prefixed by \
Format .tpn is a preliminary script language for building nets from net components specified in .net or .ndr format.
Syntax of tpn files:
A .tpn file is constituted of zero or more lines
.tpn ::= <tpnline>*each line is either any line allowed in a .net or .ndr file, or a tpn command:
tpnline ::= <trdesc> (as in .net or .ndr formats) | <pldesc> (as in .net or .ndr formats) | <lbdesc> (as in .net or .ndr formats) | <prdesc> (as in .net or .ndr formats) | <ntdesc> (as in .net or .ndr formats) | <netdesc> (as in .net or .ndr formats) | <tpncmd> tpncmd ::= ’new’ | ’dup’ INT | ’load’ TPNFILE | ’ren’ <renlist> | ’merge’ INT | ’sync’ INT | ’chain’ INT | ’source’ FILE renlist ::= <labpair> <renlist> | <labpair> labpair ::= <label>"/"<label> | "/"<label> label ::= a label (as in .net or .ndr formats) TPNFILE ::= the name of a .net or .ndr file FILE ::= the name of a .net, .ndr, or .tpn fileNote that, syntactically, .net and .ndr files are .tpn files. The tpn format extends both the .net and .ndr formats, but it has no graphic interpretation at the moment (a future .tdr format might provide that).
Interpretation of tpn scripts:
A tpn file describes a Time Petri net, possibly resulting from composition of several Time Petri nets.
Tpn scripts are interpreted as code for an abstract stack machine. The stack initially holds the empty Time Petri net. The result of evaluation of a tpn script is the net on top of the stack at completion of interpretation.
The lines of a tpn file are interpreted as follows ("top" means the net in topmost position on stack):
new pushes an empty net on stack .net or .ndr line extends top with the .net or .ndr declaration dup n pushes on stack n copies of top (default n is 1) ren R1 ... Rn applies relabelling R1 ... Rn to top merge n replaces n topmost nets by their concurrent composition sync n replaces n topmost nets by their synchronization chain n replaces n topmost nets by their chaining source file evaluates commands from file tpnfile load tpnfile pushes the empty net on stack, then sources tpnfileNotes:
- merge n, sync n, chain n, assign unique names to the nodes of their components;
- synchronization (sync) fuse copies of transitions with same label in all components;
- chaining (chain) is like synchronization, but on places;
- concurrent composition (merge) is simply juxtaposition, preserving labels.
It is a derived form that could always be replaced by some combination of
relabelling and sync/chain (see examples);- in a ren specification, all renamings and/or hidings are applied simultaneously;
ren x/y means that all nodes labelled by y become labelled by x
ren /x means that nodes labelled x become unlabelled (hidden)- "load tpnfile" is a shorthand for the two lines:
new source tpnfile- the file names in source and load instructions are relative to the directory
in which resides the script file;
The PNML format is still evolving. The tina tools currently accept BasicPNML (http://www.informatik.hu-berlin.de/top/pnml/basicPNML.rng) and an extension of it, TpnPNML, informally explained below.
TpnPNML extends BasicPNML as follows:
- In the "graphics" element of any node, the following line can be added,
that specifies an offset for the node identifier:<offset x=... y=... />
- Any place and transition can have a "label" element, in addition to a
name element.- Any transition can have a "delay" element, encoding a firing interval,
and possibly an offset for this interval. The syntax of intervals is
taken from MathML (http://www.w3.org/1998/Math/MathM).
For instance, an interval [4,9] with offset (-10,0) is specified by:<delay> <interval xmlns="http://www.w3.org/1998/Math/MathML" closure="closed"> <cn>4</cn> <cn>9</cn> </interval> <graphics> <offset x="-10" y="0" /> </graphics> </delay>
The unbounded interval [4,w[ would be specified by:
<delay> <interval xmlns="http://www.w3.org/1998/Math/MathML" closure="closed-open"> <cn>4</cn> <ci>infty</ci> </interval> </delay>
And interval ]3,5[ by:
<delay> <interval xmlns="http://www.w3.org/1998/Math/MathML" closure="open"> <cn>3</cn> <cn>5</cn> </interval> </delay>
Tools tina, struct and plan accept BasicPNML and TpnPNML natively.
The nd tool can import or export nets into TpnPNML. If the file has extension .pnml, then "file->open" and "file->save as" can be used for this, otherwise use "file->import" or "file->export".
The ndrio tool is able to convert .net and .ndr to/from .pnml.
As of 2.9.0, tina accepts as input high level descriptions called "Time Transition Systems" (TTS). A Time Transition System description consists of a Time Petri net described in any format understood by tina (.net, .ndr, .tpn, .pnml) and a shared library (a .so/.dyn/.dll file) defining the data processing synchronized with the net transitions, together in a directory with extension .tts.
Applied to a .tts directory, tina loads the .net or .ndr file (as usual), and dynamically links the library file to get the actions and predicates. This file described the API the shared library must obey.
tina sees data values as keys (integers, not necessarily contiguous), through a "store" function. The storage functions may reside in a separate library or may be statically linked with the data library, all storage libraries must provide functions:
store : value -> key lookup : key -> value init_storage : unit -> unitThe data shared library itself captures:
an array of transition names for the transitions referred to in the library:transitions : int ref -> string vector
A function returning the current version of the format (currently 1):
ttsapiversion : unit -> int
A function initial returning the initial data state and a function final called after exploration is complete:
initial : unit -> key final : int -> unit
for a subset of transitions in transitions, referred to by their index in array transitions, functions:
pre_i : key -> bool act_i : key -> key
An independance predicate for actions. This predicate is used by tina for computing the conflicting relation for partial order methods, and the persistent and newly enabled relations for state class graphs:
independant : int * int -> bool
A value printer, used by tina to print data value in some concrete notation when output is "verbose":
sprint_state: key * string ref -> int
For kts output, the state (or some abstraction of it) should be available to tina as a record with integer fields. This is done by providing:
A vector of observation labels, and the number of, by function:
obs_names : int ref -> string vector
A function to retrieve the contents of observables from a value:
obs_values : key -> int vector
A first high level description language compiled into this format, called Fiacre, should be available by now.
The ktz format is the binary format for kripke transition system (kts) of tina. That compact format is the input format of selt (the tina SE-LTL model checker) and other forthcoming tools.
(description to be provided).
The aut format is the lts description format of the Aldebaran tool of the CADP toolset (see the CADP documents).
Notes
The .aut format does not allow double quotes (") to appear in labels. In addition tina forbids backquotes (‘) in .aut labels. Backquotes are used by tina to encode sets of properties into single .aut labels.
The bcg format is the binary lts description format of the BCG tools of the CADP toolset (see the CADP documents).
Notes
tina forbids double quotes (") and backquotes (‘) to appear in .bcg labels. Backquotes are used by tina to encode lists of properties into single .bcg labels; double quotes would prevent lossless conversions to .bcg.
The mec format is the kts description format of the Mec4 model checker.
Notes
mec only allows alphanumeric labels (a letter followed by letters, digits or _) to appear as state or transition properties. tina will refuse to generate .mec descriptions if place or transition names are not legal mec property identifiers.
It is the format of graphic files produced by the nd editor when editing automata. An automaton is described by a series of declarations of states and edges, followed by a name declaration. The automaton described is the superposition of these declarations.
Grammar:
.adr ::= (<stdesc>)* (<edgedesc>)* <autdesc> stdesc ::= ’s’ <xpos> <ypos> <state> {<anchor> <label> <anchor>} edgedesc ::= ’e’ <state> <state> <label> <anchor> edgedesc | ’e’ <state> <ang> <rad> <state> <ang> <rad> <label> <anchor> autdesc ::= ’h’ <aut> <attr> xpos, ypos, rad ::= FLOAT ang ::= UFLOAT aut, state, label ::= ANAME | ’{’QNAME’}’ anchor ::= ’n’ | ’nw’ | ’w’ | ’sw’ | ’s’ | ’se’ | ’e’ | ’ne’ | ’c’ FLOAT ::= integer or float (without exponent) UFLOAT ::= integer or float between 0 and 1 (without exponent) INT ::= unsigned integer ANAME ::= see notes below QNAME ::= see notes below attr ::= an unspecified number of optional graphic parameters (specifying size, color, etc)Notes:
State declarations must precede edge declarations.
The last declaration must be the autdesc declaration (h).
Empty lines and lines beginning with ’#’are considered comments.
Two forms are admitted for net, place and transition names:
- ANAME : any non empty string of letters, digits, primes ’ and underscores _
- ’{’QNAME’}’ : any chain between braces, and in which characters {, }, and \ are prefixed by \
ltl is the format of files accepted as use input by the selt model-checker. Check the selt manual page for a full description.
mmc is the format of files accepted as use input by the muse model-checker. Check the muse manual page for a full description.
The scn format is used by:
- the nd stepper to store/load histories; - the selt model checker to save counter examples for replay by the stepper; - the plan application, to analyse path timing.A .scn file is a series of line, each constituted of a series of blocks of one of the following shape (all blocks in a file have same shape) :
<transition> or: <transition>@<time> or: <transition>$<time>where <transition> is a transition name (see net.txt) and <time> is a nonnegative float (without exponent)
Spaces and tabs are considered separators;
Line breaks are significant, they are interpreted as marks by the nd stepper, and preserved by the plan tool;
Blank lines and and those beginning with "#" are considered comments;
Directory "net" in tina distributions include various example descriptions in the above formats.
nd(n), tina(n), sift(n), rsdd(n), plan(n), struct(n), ktzio(n), ndrio(n), selt(n), muse(n), pathto(n), play(n)
Bernard Berthomieu, LAAS/CNRS, 2000-2015, Bernard.Berthomieu@laas.fr.
| Tina Formats | formats (n) | Version 3.0.0 |