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Initial commit of QGen

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Controlled by fixedpoint.spacer.use_quanti_generalizer

measure cumulative time, number of invocations, and number of failed
SMT calls

Relaxing equality in a pattern: if a variable equals a numeral, relax with GE

pob::get_skolems() returns all skolems that might appear in the pob.
New skolems must be added above the largest index in that map,
even if they are not used in the pob itself.

pattern generalization should be done before the pattern is skolemized and
added into the new cube.
This commit is contained in:
Yakir Vizel 2017-12-18 13:52:53 -05:00 • committed by Arie Gurfinkel
parent a1efb88318
commit 23a8e59493
10 changed files with 583 additions and 16 deletions
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21
src/muz/spacer/spacer_manager.cpp
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@ -340,22 +340,27 @@ app* mk_zk_const(ast_manager &m, unsigned idx, sort *s) {
namespace find_zk_const_ns {
struct proc {
int m_max;
app_ref_vector &m_out;
proc (app_ref_vector &out) : m_out(out) {}
proc (app_ref_vector &out) : m_max(-1), m_out(out) {}
void operator() (var const * n) const {}
void operator() (app *n) const {
if (is_uninterp_const(n) &&
n->get_decl()->get_name().str().compare (0, 3, "sk!") == 0) {
m_out.push_back (n);
void operator() (app *n) {
int idx;
if (is_zk_const(n, idx)) {
m_out.push_back(n);
if (idx > m_max) {
m_max = idx;
}
}
}
void operator() (quantifier const *n) const {}
};
}
void find_zk_const(expr *e, app_ref_vector &res) {
int find_zk_const(expr *e, app_ref_vector &res) {
find_zk_const_ns::proc p(res);
for_each_expr (p, e);
return p.m_max;
}
namespace has_zk_const_ns {
@ -363,8 +368,8 @@ struct found {};
struct proc {
void operator() (var const *n) const {}
void operator() (app const *n) const {
if (is_uninterp_const(n) &&
n->get_decl()->get_name().str().compare(0, 3, "sk!") == 0) {
int idx;
if (is_zk_const(n, idx)) {
throw found();
}
}