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test variants for seq_solver

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Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
This commit is contained in:
Nikolaj Bjorner 2016-05-30 18:15:10 -07:00
parent f03032bd09
commit 39acd3594a
4 changed files with 23 additions and 20 deletions
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8
src/smt/theory_seq.cpp
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@ -242,6 +242,7 @@ void theory_seq::init(context* ctx) {
}
final_check_status theory_seq::final_check_eh() {
m_new_propagation = false;
TRACE("seq", display(tout << "level: " << get_context().get_scope_level() << "\n"););
if (simplify_and_solve_eqs()) {
++m_stats.m_solve_eqs;
@ -1436,7 +1437,7 @@ bool theory_seq::solve_eqs(unsigned i) {
change = true;
}
}
return change || ctx.inconsistent();
return change || m_new_propagation || ctx.inconsistent();
}
bool theory_seq::solve_eq(expr_ref_vector const& l, expr_ref_vector const& r, dependency* deps) {
@ -1831,8 +1832,6 @@ bool theory_seq::solve_ne(unsigned idx) {
continue;
}
else {
if (!updated) {
for (unsigned j = 0; j < i; ++j) {
new_ls.push_back(n.ls(j));
@ -2120,7 +2119,6 @@ bool theory_seq::explain_empty(expr_ref_vector& es, dependency*& dep) {
bool theory_seq::simplify_and_solve_eqs() {
context & ctx = get_context();
m_new_propagation = false;
m_new_solution = true;
while (m_new_solution && !ctx.inconsistent()) {
m_new_solution = false;
@ -2639,6 +2637,7 @@ expr_ref theory_seq::expand(expr* e0, dependency*& eqs) {
else if (m_util.str.is_itos(e, e1)) {
rational val;
if (get_value(e1, val)) {
TRACE("seq", tout << mk_pp(e, m) << " -> " << val << "\n";);
expr_ref num(m), res(m);
num = m_autil.mk_numeral(val, true);
if (!ctx.e_internalized(num)) {
@ -2652,6 +2651,7 @@ expr_ref theory_seq::expand(expr* e0, dependency*& eqs) {
deps = m_dm.mk_join(deps, m_dm.mk_leaf(assumption(n1, n2)));
}
else {
TRACE("seq", tout << "add axiom\n";);
add_axiom(~mk_eq(num, e1, false), mk_eq(e, res, false));
add_axiom(mk_eq(num, e1, false), ~mk_eq(e, res, false));
result = e;