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Debugging

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This commit is contained in:
CEisenhofer 2026-04-08 18:48:47 +02:00
parent 86dc9d3268
commit 513f49f39c
4 changed files with 39 additions and 20 deletions
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46
src/smt/theory_nseq.cpp
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@ -784,7 +784,7 @@ namespace smt {
}
auto res = kernel.check();
if (res == l_true) {
std::cout << "Insufficient justification:\n";
std::cout << "Conflict is SAT - Insufficient justification:\n";
for (auto& lit : lits) {
std::cout << mk_pp(ctx.literal2expr(lit), m) << "\n-----------\n";
}
@ -795,27 +795,43 @@ namespace smt {
std::cout << std::endl;
model_out();
kernel.reset();
auto& lits = ctx.assigned_literals();
for (literal l : lits) {
expr* e = ctx.literal2expr(l);
if (!ctx.b_internalized(e) || !ctx.is_relevant(e))
continue;
th_rewriter th(m);
expr_ref r(m);
th(e, r);
kernel.assert_expr(r);
for (auto& eq : m_nielsen.root()->str_eqs()) {
kernel.assert_expr(m.mk_eq(eq.m_lhs->get_expr(), eq.m_rhs->get_expr()));
}
for (auto& mem : m_nielsen.root()->str_mems()) {
kernel.assert_expr(m_seq.re.mk_in_re(mem.m_str->get_expr(), mem.m_regex->get_expr()));
}
auto res2 = kernel.check();
if (res2 == l_true) {
// the algorithm is unsound
std::cout << "Original input is SAT" << std::endl;
std::cout << "Nielsen input is SAT" << std::endl;
model_out();
kernel.reset();
auto& lits = ctx.assigned_literals();
for (literal l : lits) {
expr* e = ctx.literal2expr(l);
if (!ctx.b_internalized(e) || !ctx.is_relevant(e))
continue;
th_rewriter th(m);
expr_ref r(m);
th(e, r);
kernel.assert_expr(r);
}
auto res3 = kernel.check();
if (res3 == l_true) {
// the algorithm is unsound
std::cout << "Complete input is SAT" << std::endl;
model_out();
}
else if (res3 == l_false)
// the justification is too narrow
std::cout << "Complete input is UNSAT" << std::endl;
else
std::cout << "Complete input is UNKNOWN" << std::endl;
}
else if (res2 == l_false)
// the justification is too narrow
std::cout << "Original input is UNSAT" << std::endl;
std::cout << "Nielsen input is UNSAT" << std::endl;
else
std::cout << "Original input is UNKNOWN" << std::endl;
std::cout << "Nielsen input is UNKNOWN" << std::endl;
}
VERIFY(res != l_true);
}