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We need to reset local conflicts

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This commit is contained in:
CEisenhofer 2026-04-08 18:24:11 +02:00
parent 26ededa891
commit 86dc9d3268
4 changed files with 57 additions and 31 deletions
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13
src/smt/seq/seq_nielsen.cpp
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@ -1315,6 +1315,11 @@ namespace seq {
SASSERT(depth <= cur_path.size());
m_stats.m_max_depth = std::max(m_stats.m_max_depth, depth);
if (node->is_general_conflict()) {
++m_stats.m_num_simplify_conflict;
return search_result::unsat;
}
// check for external cancellation (timeout, user interrupt)
if (!m.inc())
return search_result::unknown;
@ -1336,10 +1341,18 @@ namespace seq {
return search_result::unknown;
}
node->set_eval_idx(m_run_idx);
SASSERT(!node->is_general_conflict());
node->clear_local_conflict(); // clear local conflicts from previous runs
// we might need to tell the SAT solver about the new integer inequalities
// that might have been added by an extension step
assert_node_new_int_constraints(node);
if (node->is_currently_conflict()) {
++m_stats.m_num_simplify_conflict;
return search_result::unsat;
}
// simplify constraints (idempotent after first call)
const simplify_result sr = node->simplify_and_init(cur_path);