mirrors/z3
3
0
Fork 0
mirror of https://github.com/Z3Prover/z3 synced 2025-07-19 19:02:02 +00:00
Code Activity

avoid repeated internalization of lambda #4169

Browse source 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
This commit is contained in:
Nikolaj Bjorner 2020-04-30 13:24:26 -07:00
parent 7ae20476c2
commit 799b6131f2
8 changed files with 88 additions and 31 deletions
Download patch file Download diff file Expand all files Collapse all files

18
src/smt/theory_recfun.cpp
View file

@ -21,7 +21,6 @@ Revision History:
#include "ast/ast_util.h"
#include "ast/for_each_expr.h"
#include "smt/theory_recfun.h"
#include "smt/params/smt_params_helper.hpp"
#define TRACEFN(x) TRACE("recfun", tout << x << '\n';)
@ -357,6 +356,7 @@ namespace smt {
literal_vector preds;
auto & vars = e.m_def->get_vars();
unsigned max_depth = 0;
for (recfun::case_def const & c : e.m_def->get_cases()) {
// applied predicate to `args`
app_ref pred_applied = c.apply_case_predicate(e.m_args);
@ -376,15 +376,25 @@ namespace smt {
}
else if (!is_enabled_guard(pred_applied)) {
disable_guard(pred_applied, guards);
max_depth = std::max(depth, max_depth);
continue;
}
activate_guard(pred_applied, guards);
}
// the disjunction of branches is asserted
// to close the available cases.
std::function<literal_vector(void)> fn2 = [&]() { return preds; };
scoped_trace_stream _tr2(*this, fn2);
ctx().mk_th_axiom(get_id(), preds);
{
scoped_trace_stream _tr2(*this, preds);
ctx().mk_th_axiom(get_id(), preds);
}
(void)max_depth;
// add_induction_lemmas(max_depth);
}
void theory_recfun::add_induction_lemmas(unsigned depth) {
if (depth > 4 && ctx().get_fparams().m_induction && induction::should_try(ctx())) {
ctx().get_induction()();
}
}
void theory_recfun::activate_guard(expr* pred_applied, expr_ref_vector const& guards) {