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nla review (#4321)

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* simplify the nla_solver interface

Signed-off-by: Lev Nachmanson <levnach@hotmail.com>

* more simplifications

Signed-off-by: Lev Nachmanson <levnach@hotmail.com>

* init m_use_nra_model

Signed-off-by: Lev Nachmanson <levnach@hotmail.com>

* work on NSB comments

Signed-off-by: Lev Nachmanson <levnach@hotmail.com>

* work on NSB comments

Signed-off-by: Lev Nachmanson <levnach@hotmail.com>

Co-authored-by: Nikolaj Bjorner <nbjorner@microsoft.com>
This commit is contained in:
Lev Nachmanson 2020-05-13 13:52:42 -07:00 • committed by GitHub
parent 16aec328f1
commit 6b28973799
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10 changed files with 71 additions and 118 deletions
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6
src/math/lp/nla_basics_lemmas.h
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@ -48,6 +48,10 @@ struct basics: common {
// bool basic_lemma_for_mon_neutral_monic_to_factor_model_based_fm(const monic& m);
bool basic_lemma_for_mon_neutral_monic_to_factor_derived(const monic& rm, const factorization& f);
// use the fact
// 1 * 1 ... * 1 * x * 1 ... * 1 = x
template <typename T>
bool can_create_lemma_for_mon_neutral_from_factors_to_monic_model_based(const monic& rm, const T&, lpvar&, rational&);
// use the fact
// 1 * 1 ... * 1 * x * 1 ... * 1 = x
bool basic_lemma_for_mon_neutral_from_factors_to_monic_model_based(const monic& rm, const factorization& f);
@ -83,8 +87,6 @@ struct basics: common {
void negate_strict_sign(new_lemma& lemma, lpvar j);
// x != 0 or y = 0 => |xy| >= |y|
void proportion_lemma_model_based(const monic& rm, const factorization& factorization);
// x != 0 or y = 0 => |xy| >= |y|
bool proportion_lemma_derived(const monic& rm, const factorization& factorization);
// if there are no zero factors then |m| >= |m[factor_index]|
void generate_pl_on_mon(const monic& m, unsigned factor_index);