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axiom solver improvements

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This commit is contained in:
Nikolaj Bjorner 2021-12-31 11:53:40 -08:00
parent 79f0ceac4c
commit aa901c4e88
8 changed files with 98 additions and 75 deletions
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8
src/tactic/bv/elim_small_bv_tactic.cpp
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@ -145,11 +145,13 @@ class elim_small_bv_tactic : public tactic {
"; sort = " << mk_ismt2_pp(s, m) <<
"; body = " << mk_ismt2_pp(body, m) << std::endl;);
if (bv_sz >= 31ul || ((unsigned)(1ul << bv_sz)) + num_steps > m_max_steps) {
if (bv_sz >= 31)
return false;
unsigned max_num = 1u << bv_sz;
if (max_num > m_max_steps || max_num + num_steps > m_max_steps)
return false;
}
for (unsigned j = 0; j < (1ul << bv_sz) && !max_steps_exceeded(num_steps); j++) {
for (unsigned j = 0; j < max_num && !max_steps_exceeded(num_steps); j++) {
expr_ref n(m_util.mk_numeral(j, bv_sz), m);
new_bodies.push_back(replace_var(uv, num_decls, max_var_idx_p1, i, s, body, n));
num_steps++;