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fixes based on regression tests

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Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
This commit is contained in:
Nikolaj Bjorner 2017-08-27 09:31:16 -07:00
parent 809a4efc6b
commit 2ede4b2c80
21 changed files with 159 additions and 151 deletions
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8
src/tactic/arith/purify_arith_tactic.cpp
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@ -301,7 +301,7 @@ struct purify_arith_proc {
if (complete()) {
// y != 0 \/ k = div-0(x)
push_cnstr(OR(NOT(EQ(y, mk_real_zero())),
EQ(k, u().mk_div0(x))));
EQ(k, u().mk_div(x, mk_real_zero()))));
push_cnstr_pr(result_pr);
}
}
@ -349,10 +349,10 @@ struct purify_arith_proc {
push_cnstr_pr(mod_pr);
if (complete()) {
push_cnstr(OR(NOT(EQ(y, zero)), EQ(k1, u().mk_idiv0(x))));
push_cnstr(OR(NOT(EQ(y, zero)), EQ(k1, u().mk_idiv(x, zero))));
push_cnstr_pr(result_pr);
push_cnstr(OR(NOT(EQ(y, zero)), EQ(k2, u().mk_mod0(x))));
push_cnstr(OR(NOT(EQ(y, zero)), EQ(k2, u().mk_mod(x, zero))));
push_cnstr_pr(mod_pr);
}
}
@ -414,7 +414,7 @@ struct purify_arith_proc {
// (^ x 0) --> k | x != 0 implies k = 1, x = 0 implies k = 0^0
push_cnstr(OR(EQ(x, zero), EQ(k, one)));
push_cnstr_pr(result_pr);
push_cnstr(OR(NOT(EQ(x, zero)), EQ(k, is_int ? u().mk_0_pw_0_int() : u().mk_0_pw_0_real())));
push_cnstr(OR(NOT(EQ(x, zero)), EQ(k, u().mk_power(zero, zero))));
push_cnstr_pr(result_pr);
}
else if (!is_int) {