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lpsinvelm - check invariants and use these to simplify or eliminate summands of an LPS


lpsinvelm [OPTION]... --invfile=INVFILE [INFILE [OUTFILE]]


Checks whether the boolean formula (an mCRL2 data expression of sort Bool) provided as
invariant is an invariant of the linear process specification (LPS) in INFILE. If this is
the case, the tool eliminates all summands of the LPS whose condition violates the
invariant, and writes the result to OUTFILE. If INFILE is present, stdin is used. If
OUTFILE is not present, stdout is used.

The tool can also be used to simplify the conditions of the summands of the given LPS.


OPTION can be any of the following:

-y, --all-violations
do not terminate as soon as a single violation of the invariant is found, but
report all violations instead

-c, --counter-example
display a valuation indicating why the invariant could possibly be violated if it
is uncertain whether a summand violates the invariant

-o, --induction
apply induction on lists

-iINVFILE, --invariant=INVFILE
use the boolean formula (an mCRL2 data expression of sort Bool) in INVFILE as

-n, --no-check
do not check if the invariant holds before eliminating unreachable summands

-e, --no-elimination
do not eliminate or simplify summands, but add the invariant to each condition

-pPREFIX, --print-dot=PREFIX
save a .dot file of the resulting BDD if it is impossible to determine whether a
summand violates the invariant; PREFIX will be used as prefix of the output files

-QNUM, --qlimit=NUM
limit enumeration of quantifiers to NUM variables. (Default NUM=1000, NUM=0 for

-rNAME, --rewriter=NAME
use rewrite strategy NAME: 'jitty' jitty rewriting (default) 'jittyc' compiled
jitty rewriting 'jittyp' jitty rewriting with prover

-l, --simplify-all
simplify the conditions of all summands, instead of just eliminating the summands
whose conditions in conjunction with the invariant are contradictions

-zSOLVER, --smt-solver=SOLVER
use SOLVER to remove inconsistent paths from the internally used BDDs (by default,
no path elimination is applied): 'cvc' the SMT solver CVC3

-tLIMIT, --time-limit=LIMIT
spend at most LIMIT seconds on proving a single formula

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

display intermediate messages up to and including level

-h, --help
display help information

display version information

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