Simplify equality over address-of with offset

[tautschnig]

When testing equality of two pointers to different objects where each of them is strictly within the respective object bounds the result is necessarily false.

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[codecov]

Codecov Report

Patch coverage: 95.00% and project coverage change: +0.02 🎉

Comparison is base (8c152bc) 78.53% compared to head (7da6b86) 78.55%.

Additional details and impacted files

@@             Coverage Diff             @@
##           develop    #7704      +/-   ##
===========================================
+ Coverage    78.53%   78.55%   +0.02%     
===========================================
  Files         1686     1686              
  Lines       192930   192950      +20     
===========================================
+ Hits        151520   151581      +61     
+ Misses       41410    41369      -41     

Impacted Files	Coverage Δ
src/util/simplify_expr_int.cpp	88.55% <95.00%> (+0.12%)	⬆️

... and 2 files with indirect coverage changes

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[kroening]

May I suggest saying "strictly within object bounds" for clarity -- as opposed to "one beyond end of sequence", which is too weak as a precondition.

[tautschnig]

May I suggest saying "strictly within object bounds" for clarity -- as opposed to "one beyond end of sequence", which is too weak as a precondition.

Done.