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splitting (#2424)
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This is work towards #2305.
With this PR, CVC4's performance is fairly reasonable on the Kind2 BMC benchmarks with --decision=internal --ext-rew-prep --ext-rew-prep-agg.
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Moved `src/theory/quantifiers/macros.{cpp,h}` to `src/preprocessing/passes/quantifier_macros.{cpp,h}`,
and added the necessary methods for inheritance from PreprocessingPass.
No need to add a test - regress0 fails when adding Assert(false) when assertions had changed.
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(#2234)
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This corrects a bug that was introduced in #2266 (the hack removed there was necessary).
This ensures that we handle operators like bvudiv, bvsdiv, bvurem, div, rem, / properly in sygus.
This also enables total semantics for BV div-by-zero for sygus.
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* Proposal for adding map utility functions to CVC4.
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sygus (#2269)
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This includes:
- Enabling sygus-specific options in SmtEngine::setDefaults,
- Disabling a variant of miniscoping (triggered by many chc-comp18 benchmarks),
- Treating free constants as functions to synthesize
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