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Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
This commit is contained in:
Nikolaj Bjorner 2020-09-03 07:16:59 -07:00
parent d83d0a83d6
commit aa66be9406
9 changed files with 428 additions and 87 deletions
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47
src/sat/smt/sat_th.cpp
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@ -17,15 +17,62 @@ Author:
#include "sat/smt/sat_th.h"
#include "sat/smt/euf_solver.h"
#include "tactic/tactic_exception.h"
namespace euf {
bool th_internalizer::visit_rec(ast_manager& m, expr* a, bool sign, bool root, bool redundant) {
IF_VERBOSE(110, verbose_stream() << "internalize: " << mk_pp(a, m) << "\n");
flet<bool> _is_learned(m_is_redundant, redundant);
sat::scoped_stack _sc(m_stack);
unsigned sz = m_stack.size();
visit(a);
while (m_stack.size() > sz) {
loop:
if (!m.inc())
throw tactic_exception(m.limit().get_cancel_msg());
sat::eframe& fr = m_stack.back();
expr* e = fr.m_e;
if (visited(e)) {
m_stack.pop_back();
continue;
}
unsigned num = is_app(e) ? to_app(e)->get_num_args() : 0;
while (fr.m_idx < num) {
expr* arg = to_app(e)->get_arg(fr.m_idx);
fr.m_idx++;
if (!visit(arg))
goto loop;
}
if (!post_visit(e, sign, root && a == e))
return false;
m_stack.pop_back();
}
return true;
}
th_euf_solver::th_euf_solver(euf::solver& ctx, euf::theory_id id):
th_solver(ctx.get_manager(), id),
ctx(ctx)
{}
smt_params const& th_euf_solver::get_config() const {
return ctx.get_config();
}
region& th_euf_solver::get_region() {
return ctx.get_region();
}
enode* th_euf_solver::get_enode(expr* e) const {
return ctx.get_enode(e);
}
sat::literal th_euf_solver::get_literal(expr* e) const {
return ctx.get_literal(e);
}
theory_var th_euf_solver::mk_var(enode * n) {
SASSERT(!is_attached_to_var(n));
euf::theory_var v = m_var2enode.size();