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spacer: fixes lim_num_generalizer

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Must check that newly constructed generalization blocks
the proof obligation.

Was only checking that generalization is entailed by the transition system!
This commit is contained in:
Arie Gurfinkel 2019-09-11 21:53:13 +02:00 • committed by Nikolaj Bjorner
parent 63840806d8
commit 1b83c677ea
2 changed files with 44 additions and 12 deletions
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16
src/muz/spacer/spacer_context.cpp
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@ -2655,11 +2655,6 @@ void context::init_lemma_generalizers()
{
reset_lemma_generalizers();
if (m_use_lim_num_gen) {
// first, to get small numbers before any other smt calls
m_lemma_generalizers.push_back(alloc(limit_num_generalizer, *this, 5));
}
if (m_q3_qgen) {
m_lemma_generalizers.push_back(alloc(lemma_bool_inductive_generalizer,
*this, 0, true));
@ -2678,6 +2673,12 @@ void context::init_lemma_generalizers()
m_lemma_generalizers.push_back(alloc(lemma_bool_inductive_generalizer, *this, 0));
}
// after the lemma is minimized (maybe should also do before)
if (m_use_lim_num_gen) {
m_lemma_generalizers.push_back(alloc(limit_num_generalizer, *this, 5));
}
if (m_use_array_eq_gen) {
m_lemma_generalizers.push_back(alloc(lemma_array_eq_generalizer, *this));
}
@ -3051,9 +3052,10 @@ lbool context::solve_core (unsigned from_lvl)
STRACE("spacer_progress", tout << "\n* LEVEL " << lvl << "\n";);
IF_VERBOSE(1,
if (m_params.print_statistics ()) {
if (m_params.print_statistics()) {
statistics st;
collect_statistics (st);
collect_statistics(st);
st.display_smt2(verbose_stream());
};
);