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Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
This commit is contained in:
Nikolaj Bjorner 2023-11-20 16:15:30 -08:00
parent 6a572543b4
commit 14483dcd6e
3 changed files with 45 additions and 19 deletions
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38
src/test/euf_arith_plugin.cpp
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@ -55,23 +55,49 @@ static void test2() {
expr_ref x(m.mk_const("x", I), m);
expr_ref y(m.mk_const("y", I), m);
auto* nx = get_node(g, a.mk_add(x, y));
auto* ny = get_node(g, a.mk_add(y, x));
auto* nxy = get_node(g, a.mk_add(x, y));
auto* nyx = get_node(g, a.mk_add(y, x));
auto* nx = get_node(g, x);
auto* ny = get_node(g, y);
TRACE("plugin", tout << "before merge\n" << g << "\n");
g.merge(nx, get_node(g, x), nullptr);
g.merge(ny, get_node(g, y), nullptr);
g.merge(nxy, nx, nullptr);
g.merge(nyx, ny, nullptr);
TRACE("plugin", tout << "before propagate\n" << g << "\n");
g.propagate();
TRACE("plugin", tout << "after propagate\n" << g << "\n");
SASSERT(get_node(g, x)->get_root() == get_node(g, y)->get_root());
SASSERT(nx->get_root() == ny->get_root());
g.merge(get_node(g, a.mk_add(x, a.mk_add(y, y))), get_node(g, a.mk_add(y, x)), nullptr);
g.propagate();
std::cout << g << "\n";
}
static void test3() {
ast_manager m;
reg_decl_plugins(m);
euf::egraph g(m);
g.add_plugins();
arith_util a(m);
sort_ref I(a.mk_int(), m);
expr_ref x(m.mk_const("x", I), m);
expr_ref y(m.mk_const("y", I), m);
auto* nxyy = get_node(g, a.mk_add(a.mk_add(x, y), y));
auto* nyxx = get_node(g, a.mk_add(a.mk_add(y, x), x));
auto* nx = get_node(g, x);
auto* ny = get_node(g, y);
g.merge(nxyy, nx, nullptr);
g.merge(nyxx, ny, nullptr);
TRACE("plugin", tout << "before propagate\n" << g << "\n");
g.propagate();
TRACE("plugin", tout << "after propagate\n" << g << "\n");
SASSERT(nx->get_root() == ny->get_root());
std::cout << g << "\n";
}
void tst_euf_arith_plugin() {
enable_trace("plugin");
test3();
test1();
test2();
}