mirrors/z3
3
0
Fork 0
mirror of https://github.com/Z3Prover/z3 synced 2025-08-17 00:32:16 +00:00
Code Activity

fix push/pop bug for ite-elimination, thanks to Nao Hirokawa for reporting it

Browse source 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
This commit is contained in:
Nikolaj Bjorner 2019-08-30 08:31:37 -03:00
parent de43e05102
commit 4c0db00a7b
4 changed files with 13 additions and 3 deletions
Download patch file Download diff file Expand all files Collapse all files

7
src/smt/elim_term_ite.h
View file

@ -27,14 +27,16 @@ class elim_term_ite_cfg : public default_rewriter_cfg {
ast_manager& m;
defined_names & m_defined_names;
vector<justified_expr> m_new_defs;
unsigned_vector m_lim;
public:
elim_term_ite_cfg(ast_manager & m, defined_names & d): m(m), m_defined_names(d) {
// TBD enable_ac_support(false);
}
virtual ~elim_term_ite_cfg() {}
vector<justified_expr> const& new_defs() const { return m_new_defs; }
void reset() { m_new_defs.reset(); }
br_status reduce_app(func_decl* f, unsigned n, expr *const* args, expr_ref& result, proof_ref& result_pr);
void push() { m_lim.push_back(m_new_defs.size()); }
void pop(unsigned n) {if (n > 0) { m_new_defs.shrink(m_lim[m_lim.size() - n]); m_lim.shrink(m_lim.size() - n); } }
};
class elim_term_ite_rw : public rewriter_tpl<elim_term_ite_cfg> {
@ -45,7 +47,8 @@ public:
m_cfg(m, dn)
{}
vector<justified_expr> const& new_defs() const { return m_cfg.new_defs(); }
void reset() { m_cfg.reset(); }
void push() { m_cfg.push(); }
void pop(unsigned n) { m_cfg.pop(n); }
};