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Pin lemmas so that they don't disappear

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This commit is contained in:
Arie Gurfinkel 2018-05-29 21:22:32 -07:00
parent ebfb2a4a1e
commit 61cd74818f
2 changed files with 9 additions and 5 deletions
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3
src/muz/spacer/spacer_context.cpp
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@ -1834,6 +1834,9 @@ bool pred_transformer::frames::add_lemma(lemma *new_lemma)
// new_lemma is really new
m_lemmas.push_back(new_lemma);
// XXX because m_lemmas is reduced, keep secondary vector of all lemmas
// XXX so that pob can refer to its lemmas without creating reference cycles
m_pinned_lemmas.push_back(new_lemma);
m_sorted = false;
m_pt.add_lemma_core(new_lemma);

11
src/muz/spacer/spacer_context.h
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@ -198,12 +198,13 @@ class pred_transformer {
#include "muz/spacer/spacer_legacy_frames.h"
class frames {
private:
pred_transformer &m_pt;
lemma_ref_vector m_lemmas;
unsigned m_size;
pred_transformer &m_pt; // parent pred_transformer
lemma_ref_vector m_pinned_lemmas; // all created lemmas
lemma_ref_vector m_lemmas; // active lemmas
unsigned m_size; // num of frames
bool m_sorted;
lemma_lt_proc m_lt;
bool m_sorted; // true if m_lemmas is sorted by m_lt
lemma_lt_proc m_lt; // sort order for m_lemmas
void sort ();