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translator: add tls-max-states option

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This restricts the time spent in translating sub-formulas for
implication tests by limiting the associated automata to 64 states by
default.  Doing so this does worsen any test case, and actually remove
all calls the BuDDy's GC in bdd.test.

* spot/twaalgos/translate.cc, spot/twaalgos/translate.hh,
spot/tl/simplify.cc, spot/tl/simplify.hh, spot/tl/contain.hh,
spot/tl/contain.cc, spot/twaalgos/ltl2tgba_fm.cc,
spot/twaalgos/ltl2tgba_fm.hh: Add support for the option or
its constraint via an output_aborter.
* bin/spot-x.cc, NEWS: Document it.
* tests/core/bdd.test: Adjust and augment test case.
This commit is contained in:
Alexandre Duret-Lutz 2020-09-17 20:49:23 +02:00
parent 9d7e6386e4
commit f5965966e9
11 changed files with 66 additions and 11 deletions
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10
spot/twaalgos/ltl2tgba_fm.cc
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@ -1947,7 +1947,8 @@ namespace spot
ltl_to_tgba_fm(formula f2, const bdd_dict_ptr& dict,
bool exprop, bool symb_merge, bool branching_postponement,
bool fair_loop_approx, const atomic_prop_set* unobs,
tl_simplifier* simplifier, bool unambiguous)
tl_simplifier* simplifier, bool unambiguous,
const output_aborter* aborter)
{
tl_simplifier* s = simplifier;
@ -2051,6 +2052,13 @@ namespace spot
dest_map dests;
while (!formulae_to_translate.empty())
{
if (aborter && aborter->too_large(a))
{
if (!simplifier)
delete s;
return nullptr;
}
// Pick one formula.
formula now = *formulae_to_translate.begin();
formulae_to_translate.erase(formulae_to_translate.begin());