Coverage generates incomplete source location

[markrtuttle]

CBMC version: 5.53.1
Operating system: Red Hat 7.3.1-13

Create the file main.c

#include <string.h>

#define BUFLEN 100

static void * (* const volatile memset_func)( void *, int, size_t ) = memset;

int main()
{
  char buffer[BUFLEN];
  memset_func(&buffer, 0, BUFLEN);
}

and run

cbmc --cover location main.c

and notice that in the output

** coverage results:
[main.coverage.1] file main.c line 9 function main block 1 (lines main.c::5; main.c:main:9,10): SATISFIED
[main.coverage.2] file main.c line 11 function main block 2 (lines main.c:main:11): SATISFIED

the line main.c::5 is missing a function name as the second component. I'm not sure what name makes sense here, but prior to this example it has been an invariant that source location information reported in coverage data included file, function, and line numbers.