Swap out neutral init values for reduced assignments with min/max op

src/pystencils/backend/kernelcreation/freeze.py

@@ -207,10 +207,10 @@ class FreezeExpressions:
                 init_val = PsConstant(1)
                 new_rhs = mul(lhs.clone(), rhs)
             case "min":
-                init_val = PsCall(PsMathFunction(NumericLimitsFunctions.Min), [])
+                init_val = PsCall(PsMathFunction(NumericLimitsFunctions.Max), [])
                 new_rhs = PsCall(PsMathFunction(MathFunctions.Min), [lhs.clone(), rhs])
             case "max":
-                init_val = PsCall(PsMathFunction(NumericLimitsFunctions.Max), [])
+                init_val = PsCall(PsMathFunction(NumericLimitsFunctions.Min), [])
                 new_rhs = PsCall(PsMathFunction(MathFunctions.Max), [lhs.clone(), rhs])
             case _:
                 raise FreezeError(f"Unsupported reduced assignment: {expr.op}.")