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new theory_fpa. plenty of bugs remain.

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Signed-off-by: Christoph M. Wintersteiger <cwinter@microsoft.com>
This commit is contained in:
Christoph M. Wintersteiger 2014-12-21 18:45:36 +00:00
parent d394b9579f
commit cf4b7219e1
2 changed files with 563 additions and 347 deletions
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86
src/smt/theory_fpa.h
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@ -23,7 +23,9 @@ Revision History:
#include"trail.h"
#include"fpa2bv_converter.h"
#include"fpa2bv_rewriter.h"
#include"th_rewriter.h"
#include"value_factory.h"
#include"smt_model_generator.h"
namespace smt {
@ -52,8 +54,7 @@ namespace smt {
app * mk_value(mpf const & x) {
return m_util.mk_value(x);
}
};
};
class theory_fpa : public theory {
class th_trail_stack : public trail_stack<theory_fpa> {
@ -62,6 +63,45 @@ namespace smt {
virtual ~th_trail_stack() {}
};
class fpa2bv_converter_wrapped : public fpa2bv_converter {
public:
theory_fpa & m_th;
fpa2bv_converter_wrapped(ast_manager & m, theory_fpa * th) :
fpa2bv_converter(m),
m_th(*th) {}
virtual ~fpa2bv_converter_wrapped() {}
virtual void mk_const(func_decl * f, expr_ref & result);
virtual void mk_rm_const(func_decl * f, expr_ref & result);
};
class fpa_value_proc : public model_value_proc {
protected:
theory_fpa & m_th;
app_ref m_a;
svector<model_value_dependency> m_dependencies;
public:
fpa_value_proc(theory_fpa * th, app_ref & a) : m_th(*th), m_a(a) {}
void add_dependency(enode * n) { m_dependencies.push_back(model_value_dependency(n)); }
virtual ~fpa_value_proc() {}
virtual void get_dependencies(buffer<model_value_dependency> & result) {
result.append(m_dependencies.size(), m_dependencies.c_ptr());
}
virtual app * mk_value(model_generator & mg, ptr_vector<expr> & values);
};
class fpa_rm_value_proc : public fpa_value_proc {
float_util & m_fu;
bv_util & m_bu;
public:
fpa_rm_value_proc(theory_fpa * th, app_ref & a) :
fpa_value_proc(th, a),
m_fu(th->m_converter.fu()),
m_bu(th->m_converter.bu()) {}
void add_dependency(enode * n) { fpa_value_proc::add_dependency(n); }
virtual ~fpa_rm_value_proc() {}
virtual app * mk_value(model_generator & mg, ptr_vector<expr> & values);
};
public:
class atom {
public:
@ -79,17 +119,20 @@ namespace smt {
void insert_bv2a(bool_var bv, pred_atom * a) { m_bool_var2atom.setx(bv, a, 0); }
void erase_bv2a(bool_var bv) { m_bool_var2atom[bv] = 0; }
pred_atom * get_bv2a(bool_var bv) const { return m_bool_var2atom.get(bv, 0); }
region & get_region() { return m_trail_stack.get_region(); }
region & get_region() { return m_trail_stack.get_region(); }
protected:
fpa2bv_converter m_converter;
fpa2bv_rewriter m_rw;
expr_map m_trans_map;
th_trail_stack m_trail_stack;
bool_var2atom m_bool_var2atom;
enode_vector m_temporaries;
int_vector m_tvars;
fpa_factory * m_factory;
fpa2bv_converter_wrapped m_converter;
fpa2bv_rewriter m_rw;
th_rewriter m_th_rw;
th_trail_stack m_trail_stack;
bool_var2atom m_bool_var2atom;
enode_vector m_temporaries;
vector<theory_var> m_tvars;
fpa_factory * m_factory;
obj_map<sort, func_decl*> m_wraps;
obj_map<sort, func_decl*> m_unwraps;
float_decl_plugin m_flt_plugin;
virtual final_check_status final_check_eh() { return FC_DONE; }
virtual bool internalize_atom(app * atom, bool gate_ctx);
@ -108,21 +151,24 @@ namespace smt {
void assign_eh(bool_var v, bool is_true);
virtual void relevant_eh(app * n);
virtual void init_model(model_generator & m);
virtual void finalize_model(model_generator & mg);
public:
theory_fpa(ast_manager& m);
virtual ~theory_fpa();
protected:
void split_triple(expr * e, expr * & sgn, expr * & sig, expr * & exp) const {
SASSERT(is_app_of(e, get_family_id(), OP_FLOAT_TO_FP));
SASSERT(to_app(e)->get_num_args() == 3);
sgn = to_app(e)->get_arg(0);
sig = to_app(e)->get_arg(1);
exp = to_app(e)->get_arg(2);
}
virtual void display(std::ostream & out) const;
protected:
expr_ref mk_side_conditions();
expr_ref convert_atom(expr * e);
expr_ref convert_term(expr * e);
void get_wrap(sort * s, func_decl *& wrap, func_decl *& unwrap);
void add_trail(ast * a);
void add_extra_assertions();
void mk_bv_eq(expr * x, expr * y);
void attach_new_th_var(enode * n);
void assert_cnstr(expr * e);
};
};