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checked ite-expressions as shared for bounds detection

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Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
This commit is contained in:
Nikolaj Bjorner 2015-04-23 19:59:33 +02:00
parent 3ba2e712b2
commit ffc3a36dcb
4 changed files with 35 additions and 244 deletions
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6
src/smt/theory_arith.h
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@ -879,22 +879,20 @@ namespace smt {
void add_tmp_row(row & r1, numeral const & coeff, row const & r2);
theory_var pick_var_to_leave(bool has_int, theory_var x_j, bool inc, numeral & a_ij, inf_numeral & gain, bool& skiped_row);
bool is_safe_to_leave(theory_var x, bool inc, bool& has_int, bool& is_shared);
bool move_to_bound(theory_var x_i, bool inc);
template<bool invert>
void add_tmp_row_entry(row & r, numeral const & coeff, theory_var v);
enum max_min_t { UNBOUNDED, AT_BOUND, OPTIMIZED, BEST_EFFORT};
max_min_t max_min(theory_var v, bool max, bool& has_shared);
max_min_t max_min_orig(row & r, bool max, bool& has_shared);
bool max_min(svector<theory_var> const & vars);
max_min_t max_min_new(row& r, bool max, bool& has_shared);
max_min_t max_min(row& r, bool max, bool& has_shared);
bool unbounded_gain(inf_numeral const & max_gain) const;
bool safe_gain(inf_numeral const& min_gain, inf_numeral const & max_gain) const;
void normalize_gain(numeral const& divisor, inf_numeral & max_gain) const;
void init_gains(theory_var x, bool inc, inf_numeral& min_gain, inf_numeral& max_gain);
bool update_gains(bool inc, theory_var x_i, numeral const& a_ij,
inf_numeral& min_gain, inf_numeral& max_gain);
bool move_to_bound_new(theory_var x_i, bool inc, unsigned& best_efforts, bool& has_shared);
bool move_to_bound(theory_var x_i, bool inc, unsigned& best_efforts, bool& has_shared);
bool pick_var_to_leave(
theory_var x_j, bool inc, numeral & a_ij,
inf_numeral& min_gain, inf_numeral& max_gain,