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relaxing condition for assumptions, add theory-assumption to skolem functions

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Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
This commit is contained in:
Nikolaj Bjorner 2017-05-07 14:54:47 -07:00
parent e02392c0e3
commit 3ae722025f
2 changed files with 10 additions and 3 deletions
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9
src/smt/smt_context.cpp
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@ -3115,11 +3115,18 @@ namespace smt {
}
bool is_valid_assumption(ast_manager & m, expr * assumption) {
expr* arg;
if (!m.is_bool(assumption))
return false;
if (is_uninterp_const(assumption))
return true;
if (m.is_not(assumption) && is_uninterp_const(to_app(assumption)->get_arg(0)))
if (m.is_not(assumption, arg) && is_uninterp_const(arg))
return true;
if (!is_app(assumption))
return false;
if (to_app(assumption)->get_num_args() == 0)
return true;
if (m.is_not(assumption, arg) && is_app(arg) && to_app(arg)->get_num_args() == 0)
return true;
return false;
}