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Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
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Nikolaj Bjorner 2021-08-11 09:20:44 -07:00
parent 1197c4d416
commit 008f88ae1c
2 changed files with 23 additions and 10 deletions
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11
src/math/polysat/fixplex_def.h
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@ -1219,6 +1219,17 @@ namespace polysat {
* Explore an efficient way to propagate with the following idea:
* For odd c, multiply row by inverse of c and accumulate similar
* propagation.
*
* Conflicts spanning multiple rows are TBD:
* Idea could be similar to conflicts for inequality propagation.
* - create a stack of variables that get tightened.
* - walk over every row that contains the top variable on the stack
* - perform bounds propagation for the currently examined row
* - put newly tightened variables from row on the top of the stack
* - if a variable occurs already on the stack determine if the rows on the
* stack resolve into a conflict.
*
* TBD: Combination of inequality and row propagation?
*/
template<typename Ext>