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Take into account discreteness for no cost zero variables in bounds section #2299

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Take into account discreteness for no cost zero variables in bounds section #2299

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4 changes: 2 additions & 2 deletions highs/io/HMPSIO.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -876,7 +876,7 @@
!col_cost[c_n] && a_start[c_n] == a_start[c_n + 1];
if (no_cost_zero_column) {
// Possibly skip this column if it's zero and has no cost
if (!highs_isInfinity(ub) || lb) {
if (!highs_isInfinity(ub) || lb || discrete) {

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// Column would have a bound to report
num_no_cost_zero_columns_in_bounds_section++;
}
Expand Down Expand Up @@ -1014,7 +1014,7 @@
highsLogUser(log_options, HighsLogType::kInfo,
"Model has %" HIGHSINT_FORMAT
" zero columns with no costs: %" HIGHSINT_FORMAT
" have finite upper bounds "
" are discrete or have finite upper bounds "
"or nonzero lower bounds and are %swritten in MPS file\n",
num_no_cost_zero_columns,
num_no_cost_zero_columns_in_bounds_section,
Expand Down
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