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Add initial value setting API for solver and optimize contexts and update related function signatures

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Nikolaj Bjorner 2024-09-18 16:18:47 +03:00
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RELEASE_NOTES.md
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@ -15,7 +15,10 @@ Version 4.13.1
- single-sample cell projection in nlsat was designed by Haokun Li and Bican Xia.
- using simple-checker together with and variable ordering supported by qfnra_tactic was developed by Mengyu Zhao (Linxi) and Shaowei Cai.
The projection is described in paper by Haokun Li and Bican Xia, [Solving Satisfiability of Polynomial Formulas By Sample - Cell Projection](https://arxiv.org/abs/2003.00409). The code ported from https://github.com/hybridSMT/hybridSMT.git
The projection is described in paper by Haokun Li and Bican Xia, [Solving Satisfiability of Polynomial Formulas By Sample - Cell Projection](https://arxiv.org/abs/2003.00409). The code ported from https://github.com/hybridSMT/hybridSMT.git
- Add API for providing hints for the solver/optimize contexts for which initial values to attempt to use for variables.
The new API function are Z3_solver_set_initial_value and Z3_optimize_set_initial_value, respectively. Supply these functions with a Boolean or numeric variable, and a value. The solver will then attempt to use these values in the initial phase of search. The feature is aimed at resolving nearly similar problems, or problems with a predicted model and the intent is that restarting the solver based on a near solution can avoid prune the space of constraints that are initially infeasible.
Version 4.13.0
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