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fix branch_variable() (#4472)

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* fixed branch_variable()

* add docs
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trinhmt 2020-05-29 01:21:50 +08:00 • committed by GitHub
parent e9eec5349d
commit 4aa1e60daa
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6 changed files with 284 additions and 305 deletions
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25
src/smt/theory_seq.h
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@ -382,8 +382,8 @@ namespace smt {
th_union_find m_find;
seq_offset_eq m_offset_eq;
obj_ref_map<ast_manager, expr, unsigned_vector> m_overlap;
obj_ref_map<ast_manager, expr, unsigned_vector> m_overlap2;
obj_ref_map<ast_manager, expr, bool> m_overlap_lhs;
obj_ref_map<ast_manager, expr, bool> m_overlap_rhs;
seq_factory* m_factory; // value factory
@ -476,8 +476,7 @@ namespace smt {
bool branch_unit_variable(); // branch on XYZ = abcdef
bool branch_binary_variable(); // branch on abcX = Ydefg
bool branch_variable(); // branch on
bool branch_ternary_variable1(); // branch on XabcY = Zdefg
bool branch_ternary_variable2(); // branch on XabcY = defgZ
bool branch_ternary_variable(); // branch on XabcY = Zdefg
bool branch_quat_variable(); // branch on XabcY = ZdefgT
bool len_based_split(); // split based on len offset
bool branch_variable_mb(); // branch on a variable, model based on length
@ -492,14 +491,11 @@ namespace smt {
bool branch_variable_eq(eq const& e);
bool branch_binary_variable(eq const& e);
bool eq_unit(expr* l, expr* r) const;
unsigned_vector overlap(expr_ref_vector const& ls, expr_ref_vector const& rs);
unsigned_vector overlap2(expr_ref_vector const& ls, expr_ref_vector const& rs);
bool branch_ternary_variable_base(dependency* dep, unsigned_vector const & indexes, expr * x,
expr_ref_vector const& xs, expr * y1, expr_ref_vector const& ys, expr * y2);
bool branch_ternary_variable_base2(dependency* dep, unsigned_vector const& indexes, expr_ref_vector const& xs,
expr * x, expr * y1, expr_ref_vector const& ys, expr * y2);
bool branch_ternary_variable(eq const& e, bool flag1 = false);
bool branch_ternary_variable2(eq const& e, bool flag1 = false);
bool can_align_from_lhs(expr_ref_vector const& ls, expr_ref_vector const& rs);
bool can_align_from_rhs(expr_ref_vector const& ls, expr_ref_vector const& rs);
bool branch_ternary_variable_rhs(eq const& e);
bool branch_ternary_variable_lhs(eq const& e);
literal mk_alignment(expr* e1, expr* e2);
bool branch_quat_variable(eq const& e);
bool len_based_split(eq const& e);
bool is_unit_eq(expr_ref_vector const& ls, expr_ref_vector const& rs);
@ -526,8 +522,9 @@ namespace smt {
bool solve_itos(expr* n, expr_ref_vector const& rs, dependency* dep);
bool is_binary_eq(expr_ref_vector const& l, expr_ref_vector const& r, expr_ref& x, ptr_vector<expr>& xunits, ptr_vector<expr>& yunits, expr_ref& y);
bool is_quat_eq(expr_ref_vector const& ls, expr_ref_vector const& rs, expr_ref& x1, expr_ref_vector& xs, expr_ref& x2, expr_ref& y1, expr_ref_vector& ys, expr_ref& y2);
bool is_ternary_eq(expr_ref_vector const& ls, expr_ref_vector const& rs, expr_ref& x, expr_ref_vector& xs, expr_ref& y1, expr_ref_vector& ys, expr_ref& y2, bool flag1);
bool is_ternary_eq2(expr_ref_vector const& ls, expr_ref_vector const& rs, expr_ref_vector& xs, expr_ref& x, expr_ref& y1, expr_ref_vector& ys, expr_ref& y2, bool flag1);
bool is_ternary_eq_rhs(expr_ref_vector const& ls, expr_ref_vector const& rs, expr_ref& x, expr_ref_vector& xs, expr_ref& y1, expr_ref_vector& ys, expr_ref& y2);
bool is_ternary_eq_lhs(expr_ref_vector const& ls, expr_ref_vector const& rs, expr_ref_vector& xs, expr_ref& x, expr_ref& y1, expr_ref_vector& ys, expr_ref& y2);
bool solve_binary_eq(expr_ref_vector const& l, expr_ref_vector const& r, dependency* dep);
bool propagate_max_length(expr* l, expr* r, dependency* dep);