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more guards on cheap_eqs

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Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
This commit is contained in:
Lev Nachmanson 2020-06-05 13:50:46 -07:00
parent 0ff18dd5a7
commit 4936ace7cd
2 changed files with 9 additions and 2 deletions
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src/math/lp/lar_solver.cpp
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@ -158,9 +158,12 @@ void lar_solver::substitute_basis_var_in_terms_for_row(unsigned i) {
}
unsigned lar_solver::adjust_column_index_to_term_index(unsigned j) const {
SASSERT(j < m_var_register.size());
if (!tv::is_term(j)) {
unsigned ext_var_or_term = m_var_register.local_to_external(j);
j = !tv::is_term(ext_var_or_term) ? j : ext_var_or_term;
} else {
UNREACHABLE();
}
return j;
}