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add parameter descriptions

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Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
This commit is contained in:
Nikolaj Bjorner 2022-08-16 08:26:53 -07:00
parent 583dae2e27
commit b169292743
14 changed files with 737 additions and 25 deletions
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7
src/math/simplex/model_based_opt.cpp
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@ -1260,6 +1260,7 @@ namespace opt {
vector<var> coeffs = m_rows[ri].m_vars;
rational coeff = m_rows[ri].m_coeff;
unsigned v = m_rows[ri].m_id;
rational v_value = m_var2value[v];
unsigned w = UINT_MAX;
rational offset(0);
@ -1270,14 +1271,14 @@ namespace opt {
rational w_value = w == UINT_MAX ? offset : m_var2value[w];
// add v = a*z + w - k*K = 0, for k = (a*z_value + w_value) div K
// add v = a*z + w - V, for k = (a*z_value + w_value) div K
// claim: (= (mod x K) (- x (* K (div x K)))))) is a theorem for every x, K != 0
rational kK = div(a * z_value + w_value, K) * K;
rational V = v_value - a * z_value - w_value;
vector<var> mod_coeffs;
mod_coeffs.push_back(var(v, rational::minus_one()));
mod_coeffs.push_back(var(z, a));
if (w != UINT_MAX) mod_coeffs.push_back(var(w, rational::one()));
add_constraint(mod_coeffs, kK + offset, t_eq);
add_constraint(mod_coeffs, V + offset, t_eq);
add_lower_bound(v, rational::zero());
add_upper_bound(v, K - 1);