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Better tracking for debugging

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CEisenhofer 2026-06-01 19:50:34 +02:00
parent 2da7c7b3db
commit 5b41c6eb9f
5 changed files with 153 additions and 116 deletions
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28
src/test/seq_nielsen.cpp
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@ -156,20 +156,20 @@ static void test_nielsen_subst() {
euf::snode* e = sg.mk_empty_seq(seq.str.mk_string_sort());
seq::dep_tracker dep = nullptr;
seq::nielsen_subst s1(x, a, nullptr, dep);
seq::nielsen_subst s1(x, a, dep);
SASSERT(s1.is_eliminating());
// eliminating substitution: x -> empty
seq::nielsen_subst s2(x, e, nullptr, dep);
seq::nielsen_subst s2(x, e, dep);
SASSERT(s2.is_eliminating());
// non-eliminating substitution: x -> concat(A, x)
euf::snode* ax = sg.mk_concat(a, x);
seq::nielsen_subst s3(x, ax, nullptr, dep);
seq::nielsen_subst s3(x, ax, dep);
SASSERT(!s3.is_eliminating());
// eliminating substitution: x -> y (x not in y)
seq::nielsen_subst s4(x, y, nullptr, dep);
seq::nielsen_subst s4(x, y, dep);
SASSERT(s4.is_eliminating());
}
@ -243,8 +243,8 @@ static void test_nielsen_edge() {
seq::nielsen_node* child = ng.mk_child(parent);
// create edge with substitution x -> A
seq::nielsen_edge* edge = ng.mk_edge(parent, child, true);
edge->add_subst(seq::nielsen_subst(x, a, nullptr, dep));
seq::nielsen_edge* edge = ng.mk_edge(parent, child, "test", true);
edge->add_subst(seq::nielsen_subst(x, a, dep));
SASSERT(edge->src() == parent);
SASSERT(edge->tgt() == child);
@ -322,7 +322,7 @@ static void test_nielsen_subst_apply() {
node->add_str_eq(seq::str_eq(xa, by, dep));
// apply substitution x -> empty
seq::nielsen_subst s(x, e, nullptr, dep);
seq::nielsen_subst s(x, e, dep);
node->apply_subst(sg, s);
// after x -> empty: lhs should be just A, rhs still concat(B, y)
@ -385,17 +385,17 @@ static void test_nielsen_expansion() {
// branch 1: x -> eps (eliminating, progress)
euf::snode* e = sg.mk_empty_seq(seq.str.mk_string_sort());
seq::nielsen_node* child1 = ng.mk_child(root);
seq::nielsen_subst s1(x, e, nullptr, dep);
seq::nielsen_subst s1(x, e, dep);
child1->apply_subst(sg, s1);
seq::nielsen_edge* edge1 = ng.mk_edge(root, child1, true);
seq::nielsen_edge* edge1 = ng.mk_edge(root, child1, "test", true);
edge1->add_subst(s1);
// branch 2: x -> Ax (non-eliminating, non-progress)
euf::snode* ax = sg.mk_concat(a, x);
seq::nielsen_node* child2 = ng.mk_child(root);
seq::nielsen_subst s2(x, ax, nullptr, dep);
seq::nielsen_subst s2(x, ax, dep);
child2->apply_subst(sg, s2);
seq::nielsen_edge* edge2 = ng.mk_edge(root, child2, false);
seq::nielsen_edge* edge2 = ng.mk_edge(root, child2, "test", false);
edge2->add_subst(s2);
SASSERT(ng.num_nodes() == 3);
@ -3584,7 +3584,7 @@ static void test_subst_does_not_propagate_bounds_single_var() {
// apply substitution x → a·y
euf::snode* ay = sg.mk_concat(a, y);
seq::nielsen_subst s(x, ay, nullptr, dep);
seq::nielsen_subst s(x, ay, dep);
node->apply_subst(sg, s);
// No local propagation anymore: y keeps conservative defaults.
@ -3619,7 +3619,7 @@ static void test_subst_no_immediate_bound_conflict() {
// apply substitution x → a·b (no eager bound check at this stage)
euf::snode* ab = sg.mk_concat(a, b);
seq::nielsen_subst s(x, ab, nullptr, dep);
seq::nielsen_subst s(x, ab, dep);
node->apply_subst(sg, s);
SASSERT(!node->is_general_conflict());
@ -3752,7 +3752,7 @@ static void test_subst_does_not_propagate_bounds_multi_var() {
// apply substitution x → y·z (two vars, no constants)
euf::snode* yz = sg.mk_concat(y, z);
seq::nielsen_subst s(x, yz, nullptr, dep);
seq::nielsen_subst s(x, yz, dep);
node->apply_subst(sg, s);
SASSERT(queried_ub(node, y) == UINT_MAX);