mirrors/z3
3
0
Fork 0
mirror of https://github.com/Z3Prover/z3 synced 2025-06-29 01:18:45 +00:00
Code Activity

State graph dgml update and fixes in condition simplifier (#5721)

Browse source 
* improved generated dgml graph

* fixed simplification of negated ranges and did some code cleanup

* do not make loops with lower=upper=0, this is epsilon

* do not add loops with lower=upper=1

* bug fix in normalization: forgotten eps case
This commit is contained in:
Margus Veanes 2021-12-19 11:09:55 -08:00 • committed by GitHub
parent bee742111a
commit a7b1db611c
No known key found for this signature in database
GPG key ID: 4AEE18F83AFDEB23
5 changed files with 168 additions and 220 deletions
Download patch file Download diff file Expand all files Collapse all files

7
src/ast/seq_decl_plugin.h
View file

@ -252,6 +252,12 @@ public:
unsigned max_char() const { return seq.max_char(); }
unsigned num_bits() const { return seq.num_bits(); }
/*
e has a form that is equivalent to l <= x <= u (then negated = false)
or e is equivalent to !(l <= x <= u) (then negated = true)
*/
bool is_char_const_range(expr const* x, expr * e, unsigned& l, unsigned& u, bool& negated) const;
app* mk_skolem(symbol const& name, unsigned n, expr* const* args, sort* range);
bool is_skolem(expr const* e) const { return is_app_of(e, m_fid, _OP_SEQ_SKOLEM); }
@ -498,6 +504,7 @@ public:
app* mk_opt(expr* r) { return m.mk_app(m_fid, OP_RE_OPTION, r); }
app* mk_loop(expr* r, unsigned lo);
app* mk_loop(expr* r, unsigned lo, unsigned hi);
expr* mk_loop_proper(expr* r, unsigned lo, unsigned hi);
app* mk_loop(expr* r, expr* lo);
app* mk_loop(expr* r, expr* lo, expr* hi);
app* mk_full_char(sort* s);