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Weakness of the lemma independent of the pob

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Lemma inherits its weakness score from the pob. However,
pob's weakness might be reset or changed for some other reason.

To avoid affecting the lemma, the weakness is copied on
construction.
This commit is contained in:
Arie Gurfinkel 2018-06-26 11:33:54 -04:00
parent eabe91cdef
commit d9100437ce
2 changed files with 8 additions and 5 deletions
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9
src/muz/spacer/spacer_context.cpp
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@ -463,7 +463,8 @@ lemma::lemma (ast_manager &manager, expr * body, unsigned lvl) :
m_ref_count(0), m(manager),
m_body(body, m), m_cube(m),
m_zks(m), m_bindings(m), m_lvl(lvl), m_init_lvl(m_lvl),
m_pob(nullptr), m_ctp(nullptr), m_external(false), m_bumped(0) {
m_pob(nullptr), m_ctp(nullptr), m_external(false),
m_bumped(0), m_weakness(UINT_MAX) {
SASSERT(m_body);
normalize(m_body, m_body);
}
@ -472,7 +473,8 @@ lemma::lemma(pob_ref const &p) :
m_ref_count(0), m(p->get_ast_manager()),
m_body(m), m_cube(m),
m_zks(m), m_bindings(m), m_lvl(p->level()), m_init_lvl(m_lvl),
m_pob(p), m_ctp(nullptr), m_external(false), m_bumped(0) {
m_pob(p), m_ctp(nullptr), m_external(false), m_bumped(0),
m_weakness(p->weakness()) {
SASSERT(m_pob);
m_pob->get_skolems(m_zks);
add_binding(m_pob->get_binding());
@ -483,7 +485,8 @@ lemma::lemma(pob_ref const &p, expr_ref_vector &cube, unsigned lvl) :
m(p->get_ast_manager()),
m_body(m), m_cube(m),
m_zks(m), m_bindings(m), m_lvl(p->level()), m_init_lvl(m_lvl),
m_pob(p), m_ctp(nullptr), m_external(false), m_bumped(0)
m_pob(p), m_ctp(nullptr), m_external(false), m_bumped(0),
m_weakness(p->weakness())
{
if (m_pob) {
m_pob->get_skolems(m_zks);