3 commits

Author	SHA1	Message	Date
Jakob Rath	20a5baeb70	Polysat: expand conflict explanation rules (#5366) ... * update example to match slides * Add normalized view of inequalities * workaround * Add a conflict explanation rule * unit clauses should be asserted at the base level * Add src constraint to interval * support non-strict case in first rule * print conflict constraints only once * update second rule * update third rule as well	2021-06-23 10:12:39 -07:00
Jakob Rath	c4963f4381	Polysat: add two more prototype rules (#5355) ... * Add try_div to PDDs * x>y is false when x==y * First version of the other two prototype rules * More band-aid fixes...	2021-06-18 08:48:50 -07:00
Jakob Rath	3e1cfcd538	Polysat: conflict explanation prototype (#5353) ... * display constraint's extra info in one place * Add stub for conflict explainer * Add helper functions to check whether constraint is active at base level * Add helper class tmp_assign * Add clause_builder; it skips unnecessary literals during clause creation * some fixes * Use clause_builder for forbidden intervals * remove old comments * fixes/comments in solver * print redundant clauses * First pass at conflict_explainer * remove unused model class * Choose value for k * also print min/max k	2021-06-17 10:35:32 -05:00