lpsrewr
Rewrite the following data expressions of and LPS:
Conditions, action parameters, time expressions and next states of LPS summands.
Process parameters of the initial state.
There are two rewriters. The default simplifying rewriter simplifies the above mentioned expressions by applying the rewrite rules in the specification together with the rewrite rules for the built-in data types.
The quantifier-one-point rewriter eliminates variables that are bound in quantifiers if the values of these variables can be determined from the expression. Two examples:
exists x:Nat.(x==3 && f(x)) ==> f(3)
forall x:Nat.(x!=3 || f(x)) ==> f(3)
The elimination of quantifiers is generally very helpful. In solving pbesses or generating state spaces it helps to avoid enumerating these quantifiers. Symbolic manipulation often becomes much easier if quantifiers are removed.
A specification of the one point rule rewriter can be found in the developers documentation in the PBES rewriters document.
- orphan:
Usage
lpsrewr [OPTION]... [INFILE [OUTFILE]]
Description
Rewrite data expressions of the LPS in INFILE and save the result to OUTFILE.If OUTFILE is not present, standard output is used. If INFILE is not present,standard input is used
Command line options
-pNAME , --lps-rewriter=NAME
use lps rewrite strategy NAME:
simplifyfor simplification
quantifier-one-pointfor one point rule quantifier elimination
condition-one-pointsimplify summands using equalities appearing in condition
-QNUM , --qlimit=NUM
limit enumeration of quantifiers to NUM iterations. (Default NUM=1000, NUM=0 for unlimited).
-rNAME , --rewriter=NAME
use rewrite strategy NAME:
jittyjitty rewriting
jittyccompiled jitty rewriting
jittypjitty rewriting with prover
--timings[=FILE]
append timing measurements to FILE. Measurements are written to standard error if no FILE is provided
Standard options
-q , --quiet
do not display warning messages
-v , --verbose
display short intermediate messages
-d , --debug
display detailed intermediate messages
--log-level=LEVEL
display intermediate messages up to and including level
-h , --help
display help information
--version
display version information
--help-all
display help information, including hidden and experimental options