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guard expensive ite rewrites under configuration

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Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
This commit is contained in:
Nikolaj Bjorner 2018-07-09 14:17:39 -07:00
parent 8373bec6ad
commit de454db58c
2 changed files with 19 additions and 15 deletions
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4
src/math/simplex/model_based_opt.cpp
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@ -1085,7 +1085,7 @@ namespace opt {
if (D.is_zero()) {
throw default_exception("modulo 0 is not defined");
}
TRACE("opt", display(tout << "lcm: " << D << " tableau\n"););
TRACE("opt1", display(tout << "lcm: " << D << " x: v" << x << " tableau\n"););
rational val_x = m_var2value[x];
rational u = mod(val_x, D);
SASSERT(u.is_nonneg() && u < D);
@ -1093,6 +1093,7 @@ namespace opt {
replace_var(idx, x, u);
SASSERT(invariant(idx, m_rows[idx]));
}
TRACE("opt1", display(tout << "tableau after replace x under mod\n"););
//
// update inequalities such that u is added to t and
// D is multiplied to coefficient of x.
@ -1114,6 +1115,7 @@ namespace opt {
visited.insert(row_id);
}
}
TRACE("opt1", display(tout << "tableau after replace x by y := v" << y << "\n"););
def result = project(y, compute_def);
if (compute_def) {
result = (result * D) + u;