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separate fixed from bits to allow updates that break tabu

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- range and fixed restrictions on terms are based on constraints and can be violated temporarily.
- bv_eval currently does not allow updating over fixed bits which leads to non-termination. TODO
- lookahead only considers tabu when setting values of variables.
This commit is contained in:
Nikolaj Bjorner 2024-12-30 17:47:18 -08:00
parent 983763213b
commit 3433b14dfa
10 changed files with 224 additions and 193 deletions
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2
src/ast/rewriter/bv_rewriter.cpp
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@ -241,7 +241,7 @@ br_status bv_rewriter::mk_app_core(func_decl * f, unsigned num_args, expr * cons
return BR_FAILED;
}
CTRACE("bv", st != BR_FAILED, tout << mk_pp(f, m) << "\n";
CTRACE("bv_verbose", st != BR_FAILED, tout << mk_pp(f, m) << "\n";
for (unsigned i = 0; i < num_args; ++i)
tout << " " << mk_bounded_pp(args[i], m) << "\n";
tout << mk_bounded_pp(result, m, 3) << "\n");