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fix(library/unifier): assertion violation

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This commit is contained in:
Leonardo de Moura 2014-12-02 12:17:59 -08:00
parent 57effaf1a9
commit 050104cdfd
1 changed files with 1 additions and 1 deletions
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2
src/library/unifier.cpp
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@ -2191,7 +2191,7 @@ struct unifier_fn {
constraint c = p->first;
unsigned cidx = p->second;
if (cidx >= get_group_first_index(cnstr_group::ClassInstance) &&
!m_config.m_discard && cnstr_on_demand(c)) {
!m_config.m_discard && is_choice_cnstr(c) && cnstr_on_demand(c)) {
// we postpone class-instance constraints whose type still contains metavariables
m_cnstrs.erase_min();
postpone(c);