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to_parity: Add an option to force degeneralization

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* spot/twaalgos/toparity.cc, spot/twaalgos/toparity.hh:
Don't try to run the algorithm without degeneralization
with the option force_degen.
This commit is contained in:
Florian Renkin 2020-04-17 14:23:59 +02:00
parent 527b62c5ff
commit 685d6d8ba0
2 changed files with 8 additions and 4 deletions
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1
spot/twaalgos/toparity.cc
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@ -1606,6 +1606,7 @@ run()
max_states_sub_car = max_states_sub_car =
10000 + nb_states_deg - 1; 10000 + nb_states_deg - 1;
} }
if (!options.force_degen || !has_degeneralized)
nb_states_sub = nb_states_sub =
build_scc(sub_automaton, scc, state2car_sub, car2num_sub, build_scc(sub_automaton, scc, state2car_sub, car2num_sub,
algo_sub, max_states_sub_car); algo_sub, max_states_sub_car);

3
spot/twaalgos/toparity.hh
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@ -45,6 +45,9 @@ namespace spot
/// degeneralization to remove occurrences of acceptance /// degeneralization to remove occurrences of acceptance
/// subformulas such as `Fin(x) | Fin(y)` or `Inf(x) & Inf(y)`. /// subformulas such as `Fin(x) | Fin(y)` or `Inf(x) & Inf(y)`.
bool partial_degen = true; bool partial_degen = true;
/// If \c force_degen is false, to_parity will checks if we can
/// get a better result if we don't apply partial_degeneralize.
bool force_degen = true;
/// If \c scc_acc_clean is true, to_parity() will ignore colors /// If \c scc_acc_clean is true, to_parity() will ignore colors
/// no occoring in an SCC while processing this SCC. /// no occoring in an SCC while processing this SCC.
bool acc_clean = true; bool acc_clean = true;