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fixes based on unit tests

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This commit is contained in:
Nikolaj Bjorner 2024-02-19 12:59:28 +07:00
parent 046db662f9
commit 991537836b
10 changed files with 363 additions and 111 deletions
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6
src/ast/sls/bv_sls_terms.cpp
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@ -119,8 +119,8 @@ namespace bv {
expr* sls_terms::mk_sdiv(expr* x, expr* y) {
// d = udiv(abs(x), abs(y))
// y = 0, x > 0 -> 1
// y = 0, x <= 0 -> -1
// y = 0, x >= 0 -> -1
// y = 0, x < 0 -> 1
// x = 0, y != 0 -> 0
// x > 0, y < 0 -> -d
// x < 0, y > 0 -> -d
@ -136,7 +136,7 @@ namespace bv {
expr* d = bv.mk_bv_udiv(absx, absy);
expr* r = m.mk_ite(m.mk_eq(signx, signy), d, bv.mk_bv_neg(d));
r = m.mk_ite(m.mk_eq(z, y),
m.mk_ite(signx, bv.mk_numeral(N - 1, sz), bv.mk_one(sz)),
m.mk_ite(signx, bv.mk_one(sz), bv.mk_numeral(N - 1, sz)),
m.mk_ite(m.mk_eq(x, z), z, r));
return r;
}