Vector Constraint with if_then_else not working when if statement is about a separate random variable

Hi,

I am trying to randomize the elements of a crv_vector depending on the value of a separate crv_variable. When trying to use a different crv_variable in the if-statement of the if-then-else construct, I am getting a segmentation fault. Using GDB, this fault is occurring at Line 48 of VectorGenerator.cpp (Line 48 if the accellera-contribution branch) and it seems like it is trying to dereference a NULL pointer.

How can I use a CRAVE variable ( crv_variable <enum_data_type> size ) in an if-then-else for a vector constraint for randomizing each vector element? See "c_len_vec" constraint below, specifically the last foreach loop.

c_num_mcs = {
num_mcs() >= 1,
if_then_else(
size() == TYPE_SIZE_LONG, //This works, and so we assumed that this would work for a vector (see below)
num_mcs() <= this->max_mcs_long,
num_mcs() <= this->max_mcs_short
)
};

    c_len_vec = {
        len_vec().size() == num_mcs(),
        foreach(len_vec(), len_vec()[_i] >= 1),

    //This foreach loop results in a segmentation fault.
        foreach(len_vec(),
            if_then_else(
                size() == TYPE_SIZE_LONG,                        // This line results in a Segmentation Fault.
                len_vec()[_i] <= this->max_mcs_len_long,
                len_vec()[_i] <= this->max_mcs_len_short
            )
        )
    };