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viable_slicing_interface

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This commit is contained in:
Jakob Rath 2023-12-21 15:31:18 +01:00
parent bb49c71ba9
commit c6ee5b76ad
8 changed files with 69 additions and 48 deletions
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20
src/math/polysat/slicing.h
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@ -35,7 +35,7 @@ namespace polysat {
class solver;
class slicing final {
class slicing final : public viable_slicing_interface {
friend class test_slicing;
@ -341,7 +341,7 @@ namespace polysat {
pvar mk_concat(std::initializer_list<pvar> args);
// Find hi, lo such that x = src[hi:lo].
bool is_extract(pvar x, pvar src, unsigned& out_hi, unsigned& out_lo);
bool is_extract(pvar x, pvar src, unsigned& out_hi, unsigned& out_lo) override;
// Track value assignments to variables (and propagate to subslices)
void add_value(pvar v, rational const& value);
@ -363,20 +363,12 @@ namespace polysat {
void explain_value(pvar v, std::function<void(sat::literal)> const& on_lit, std::function<void(pvar)> const& on_var);
/** For a given variable v, find the set of variables w such that w = v[|w|:0]. */
void collect_simple_overlaps(pvar v, pvar_vector& out);
void explain_simple_overlap(pvar v, pvar x, std::function<void(sat::literal)> const& on_lit);
struct justified_fixed_bits : public fixed_bits {
enode* just;
justified_fixed_bits(unsigned hi, unsigned lo, rational value, enode* just): fixed_bits(hi, lo, value), just(just) {}
};
using justified_fixed_bits_vector = vector<justified_fixed_bits>;
void collect_prefixes(pvar v, pvar_vector& out) override;
void explain_prefix(pvar v, pvar x, std::function<void(sat::literal)> const& on_lit) override;
/** Collect fixed portions of the variable v */
void collect_fixed(pvar v, justified_fixed_bits_vector& out);
void explain_fixed(enode* just, std::function<void(sat::literal)> const& on_lit, std::function<void(pvar)> const& on_var);
void collect_fixed(pvar v, justified_fixed_bits_vector& out) override;
void explain_fixed(enode* just, std::function<void(sat::literal)> const& on_lit, std::function<void(pvar)> const& on_var) override;
/**
* Collect variables that are equivalent to v (including v itself)