* very basic setup
* ensure solve_eqs is fully disabled when smt.solve_eqs=false, #7743
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
* respect smt configuration parameter in elim_unconstrained simplifier
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
* indentation
* add bash files for test runs
* add option to selectively disable variable solving for only ground expressions
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
* remove verbose output
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
* fix#7745
axioms for len(substr(...)) escaped due to nested rewriting
* ensure atomic constraints are processed by arithmetic solver
* #7739 optimization
add simplification rule for at(x, offset) = ""
Introducing j just postpones some rewrites that prevent useful simplifications. Z3 already uses common sub-expressions.
The example highlights some opportunities for simplification, noteworthy at(..) = "".
The example is solved in both versions after adding this simplification.
* fix unsound len(substr) axiom
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
* FreshConst is_sort (#7748)
* #7750
add pre-processing simplification
* Add parameter validation for selected API functions
* updates to ac-plugin
fix incrementality bugs by allowing destructive updates during saturation at the cost of redoing saturation after a pop.
* enable passive, add check for bloom up-to-date
* add top-k fixed-sized min-heap priority queue for top scoring literals
---------
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
Co-authored-by: Nikolaj Bjorner <nbjorner@microsoft.com>
Co-authored-by: humnrdble <83878671+humnrdble@users.noreply.github.com>
add simplification rule for at(x, offset) = ""
Introducing j just postpones some rewrites that prevent useful simplifications. Z3 already uses common sub-expressions.
The example highlights some opportunities for simplification, noteworthy at(..) = "".
The example is solved in both versions after adding this simplification.
- AC completion which is exposed as an option to the new congruence closure core used roots of E-Graph which gets ordering of monomials out of sync.
- Added injective function handling to AC completion
- Move to model where all equations, also unit to unit are in completion
- throw in first level bound bodies into the E-graph to enable canonization on them.
