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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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scripts/mk_project.py
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@ -31,10 +31,11 @@ def init_project_def():
add_lib('nlsat', ['polynomial', 'sat'])
add_lib('lp', ['util', 'nlsat', 'grobner', 'interval', 'smt_params'], 'math/lp')
add_lib('rewriter', ['ast', 'polynomial', 'automata', 'params'], 'ast/rewriter')
add_lib('simplifiers', ['euf', 'rewriter'], 'ast/simplifiers')
add_lib('macros', ['rewriter'], 'ast/macros')
add_lib('normal_forms', ['rewriter'], 'ast/normal_forms')
add_lib('model', ['rewriter', 'macros'])
add_lib('tactic', ['ast', 'model'])
add_lib('tactic', ['ast', 'model', 'simplifiers'])
add_lib('substitution', ['ast', 'rewriter'], 'ast/substitution')
add_lib('parser_util', ['ast'], 'parsers/util')
add_lib('proofs', ['rewriter', 'util'], 'ast/proofs')