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added updated bounds propagation

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Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
This commit is contained in:
Nikolaj Bjorner 2022-12-23 12:47:17 -08:00
parent 6f8fb39bc9
commit 9fefa0040f
3 changed files with 59 additions and 2 deletions
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13
src/math/polysat/viable.h
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@ -184,6 +184,19 @@ namespace polysat {
*/
lbool max_viable(pvar v, rational& out_hi);
/**
* Query for an upper bound literal for v together with justification.
* @return true if a non-trivial upper bound is found, return justifying constraint.
*/
bool has_upper_bound(pvar v, rational& out_hi, signed_constraint& out_c);
/**
* Query for an lower bound literal for v together with justification.
* @return true if a non-trivial lower bound is found, return justifying constraint.
*/
bool has_lower_bound(pvar v, rational& out_hi, signed_constraint& out_c);
/**
* Find a next viable value for variable.
*/