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correct handling of int terms in theory_lra

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Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
This commit is contained in:
Lev Nachmanson 2020-01-27 14:08:43 -08:00
parent 8ebeaf03b4
commit d3a4b7c44b
1 changed files with 12 additions and 4 deletions
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16
src/smt/theory_lra.cpp
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@ -561,7 +561,13 @@ class theory_lra::imp {
app* t = to_app(n);
internalize_args(t);
mk_enode(t);
theory_var v = mk_var(n);
theory_var v;
if (a.is_to_real(n, n1)) {
v = mk_var(n1);
}
else {
v = mk_var(n);
}
coeffs[vars.size()] = coeffs[index];
vars.push_back(v);
++index;
@ -573,8 +579,7 @@ class theory_lra::imp {
mk_to_int_axiom(t);
}
else if (a.is_to_real(n, n1)) {
theory_var v1 = mk_var(n1);
internalize_eq(v, v1);
// already handled
}
else if (a.is_idiv(n, n1, n2)) {
if (!a.is_numeral(n2, r) || r.is_zero()) found_not_handled(n);
@ -1004,10 +1009,13 @@ public:
return true;
}
else {
TRACE("arith", tout << "Could not internalize " << mk_pp(atom, m) << "\n";);
TRACE("arith", tout << "Could not internalize " << mk_pp(atom, m) << "\n";);
found_not_handled(atom);
return true;
}
if (is_int(v) && !r.is_int()) {
r = (k == lp_api::upper_t) ? floor(r) : ceil(r);
}
lp_api::bound* b = alloc(lp_api::bound, bv, v, is_int(v), r, k);
m_bounds[v].push_back(b);
updt_unassigned_bounds(v, +1);