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misc

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This commit is contained in:
Nikolaj Bjorner 2020-12-04 16:59:05 -08:00
parent b0fd25f041
commit 4d55f83654
16 changed files with 107 additions and 54 deletions
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8
src/sat/smt/arith_axioms.cpp
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@ -49,6 +49,14 @@ namespace arith {
}
}
// t = n^0
void solver::mk_power0_axioms(app* t, app* n) {
expr_ref p0(a.mk_power0(n, t->get_arg(1)), m);
literal eq = eq_internalize(n, a.mk_numeral(rational(0), a.is_int(n)));
add_clause(~eq, eq_internalize(t, p0));
add_clause(eq, eq_internalize(t, a.mk_numeral(rational(1), a.is_int(t))));
}
// is_int(x) <=> to_real(to_int(x)) = x
void solver::mk_is_int_axiom(expr* n) {
expr* x = nullptr;