void operator()(goal_ref const & g,
goal_ref_buffer & result,
model_converter_ref & mc,
proof_converter_ref & pc,
expr_dependency_ref & core) {
mc = 0; pc = 0; core = 0;
if (!is_target(*g))
throw tactic_exception("bv1 blaster cannot be applied to goal");
tactic_report report("bv1-blaster", *g);
m_num_steps = 0;
bool proofs_enabled = g->proofs_enabled();
expr_ref new_curr(m());
proof_ref new_pr(m());
unsigned size = g->size();
for (unsigned idx = 0; idx < size; idx++) {
if (g->inconsistent())
break;
expr * curr = g->form(idx);
m_rw(curr, new_curr, new_pr);
m_num_steps += m_rw.get_num_steps();
if (proofs_enabled) {
proof * pr = g->pr(idx);
new_pr = m().mk_modus_ponens(pr, new_pr);
}
g->update(idx, new_curr, new_pr, g->dep(idx));
}
if (g->models_enabled())
mc = mk_bv1_blaster_model_converter(m(), m_rw.cfg().m_const2bits);
g->inc_depth();
result.push_back(g.get());
m_rw.cfg().cleanup();
}
bool is_target(goal const & g) const {
expr_fast_mark1 visited;
unsigned sz = g.size();
visitor proc(m_rw.cfg().butil().get_family_id());
try {
for (unsigned i = 0; i < sz; i++) {
expr * f = g.form(i);
for_each_expr_core<visitor, expr_fast_mark1, false, true>(proc, visited, f);
}
}
catch (not_target) {
return false;
}
return true;
}
void pop(unsigned num_scopes) {
SASSERT(m_bounds.empty()); // bounds must be flushed before pop.
if (num_scopes > 0) {
SASSERT(num_scopes <= m_enum_consts_lim.size());
unsigned new_sz = m_enum_consts_lim.size() - num_scopes;
unsigned lim = m_enum_consts_lim[new_sz];
for (unsigned i = m_enum_consts.size(); i > lim; ) {
--i;
func_decl* f = m_enum_consts[i].get();
func_decl* f_fresh = m_enum2bv.find(f);
m_bv2enum.erase(f_fresh);
m_enum2bv.erase(f);
m_enum2def.erase(f);
}
m_enum_consts_lim.resize(new_sz);
m_enum_consts.resize(lim);
m_enum_defs.resize(lim);
m_enum_bvs.resize(lim);
}
m_rw.reset();
}
void set_cancel(bool f) {
m_rw.set_cancel(f);
}
void updt_params(params_ref const & p) {
m_rw.cfg().updt_params(p);
}
ast_manager & m() const { return m_rw.m(); }
void cleanup() { m_rw.cleanup(); }
unsigned get_num_steps() const { return m_rw.get_num_steps(); }
