CBMC stops analysis with "pointer handling for concurrency is unsound" error with Address Assignment.

[dc-nagai]

I encountered an issue where CBMC outputs an error and stops analysis when performing pointer operations.
When I run CBMC (versions 6.7.1 and 5.9.5) on the following sample code:

static unsigned char *testptr;
void func(void) {
　　unsigned char u1data = 0;
　　testptr = &u1data;
}
CBMC　command:
・cbmc --unwind 1 --flush --partial-loops --object-bits 8 --conversion-check --unsigned-overflow-check --trace --xml-ui xxx.goto
・cbmc --unwind 1 --flush --partial-loops --object-bits 8 --cover location --xml-ui 　xxx.goto

CBMC outputs the following error message and terminates the analysis:
pointer handling for concurrency is unsound

Is it possible to improve CBMC so that the analysis does not stop in this case?
Alternatively, is there any option or workaround to force CBMC to continue the analysis despite this warning?