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fixing projection

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Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
This commit is contained in:
Nikolaj Bjorner 2017-10-14 15:53:25 -07:00
parent d36406f845
commit 1109316621
3 changed files with 51 additions and 21 deletions
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25
src/test/bdd.cpp
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@ -33,9 +33,34 @@ namespace sat {
SASSERT(!(v0 && v1) == (!v0 || !v1));
SASSERT(!(v0 || v1) == (!v0 && !v1));
}
static void test3() {
bdd_manager m(20, 1000);
bdd v0 = m.mk_var(0);
bdd v1 = m.mk_var(1);
bdd v2 = m.mk_var(2);
bdd c1 = (v0 && v1) || v2;
bdd c2 = m.mk_exists(0, c1);
std::cout << c1 << "\n";
std::cout << c2 << "\n";
SASSERT(c2 == (v1 || v2));
c2 = m.mk_exists(1, c1);
SASSERT(c2 == (v0 || v2));
c2 = m.mk_exists(2, c1);
SASSERT(c2.is_true());
SASSERT(m.mk_exists(3, c1) == c1);
c1 = (v0 && v1) || (v1 && v2) || (!v0 && !v2);
c2 = m.mk_exists(0, c1);
SASSERT(c2 == (v1 || (v1 && v2) || !v2));
c2 = m.mk_exists(1, c1);
SASSERT(c2 == (v0 || v2 || (!v0 && !v2)));
c2 = m.mk_exists(2, c1);
SASSERT(c2 == ((v0 && v1) || v1 || !v0));
}
}
void tst_bdd() {
sat::test1();
sat::test2();
sat::test3();
}