Merge pull request #1892 from goblint/div-by-zero-invariant

Remove division by zero error message during base `invariant`

Author: sim642

src/analyses/baseInvariant.ml

@@ -293,12 +293,9 @@ struct
     let inv_bin_int (a, b) ikind c op =
       let warn_and_top_on_zero x =
         if ID.equal_to Z.zero x = `Eq then
-          (M.error ~category:M.Category.Integer.div_by_zero ~tags:[CWE 369] "Must Undefined Behavior: Second argument of div or mod is 0, continuing with top";
-           Checks.error Checks.Category.DivisionByZero "Must Undefined Behavior: Second argument of div or mod is 0, continuing with top";
-           ID.top_of ikind)
-        else (
-          Checks.safe Checks.Category.DivisionByZero;
-          x)
+          ID.top_of ikind
+        else
+          x
       in
       let meet_bin a' b'  = id_meet_down ~old:a ~c:a', id_meet_down ~old:b ~c:b' in
       let meet_com oi = (* commutative *)