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adding simplifiers layer

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simplifiers layer is a common substrate for global non-incremental and incremental processing.
The first two layers are new, but others are to be ported form tactics.

- bv::slice - rewrites equations to cut-dice-slice bit-vector extractions until they align. It creates opportunities for rewriting portions of bit-vectors to common sub-expressions, including values.
- euf::completion - generalizes the KB simplifcation from asserted formulas to use the E-graph to establish a global and order-independent canonization.

The interface dependent_expr_simplifier is amenable to forming tactics. Plugins for asserted-formulas is also possible but not yet realized.
This commit is contained in:
Nikolaj Bjorner 2022-11-02 08:51:30 -07:00
parent 1646a41b2f
commit e57674490f
16 changed files with 1024 additions and 2 deletions
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src/tactic/CMakeLists.txt
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@ -17,6 +17,7 @@ z3_add_component(tactic
COMPONENT_DEPENDENCIES
ast
model
simplifiers
TACTIC_HEADERS
probe.h
tactic.h