Simple bug - Assertion failed: (el_size%8==0), function simplify_byte_extract

[lookfwd]

This is - I hope - a simple bug. Here's how to reproduce it:

struct Status
{
    bool foo = 0;  // If this is not bool, it's ok
    char bar = 0;  // If you remove this it's ok
};

struct Box
{
    Status status[4]; // If this isn't 4, it's ok
};

class Container
{
    Box boxes[3]; // If this is <3 it's ok

public:
    void setStatus(const Status & status) // If this isn't pass by ref it's ok
    {
        bool foo = status.foo;
    }
};


int main()
{    
    Container c;

    c.setStatus(c.boxes[1].status[0]);

    return 0;
}

It gives:

CBMC version 5.6 64-bit x86_64 macos
Parsing tmp3.cpp
Converting
Type-checking tmp3
Generating GOTO Program
Adding CPROVER library (x86_64)
Removal of function pointers and virtual functions
Partial Inlining
Generic Property Instrumentation
Starting Bounded Model Checking
Assertion failed: (el_size%8==0), function simplify_byte_extract, file simplify_expr.cpp, line 2033.
Abort trap: 6

[tautschnig]

This issue has since been fixed, the example is processed just fine (modulo making Container::boxes public.