alt/base_attr3_alt4.nit:110,2--9: Error: Method 'a1=' doesn't exists in B.
alt/base_attr3_alt4.nit:112,2--9: Error: Method 'a2=' doesn't exists in B.
alt/base_attr3_alt4.nit:113,2--5: Error: Method 'a3' doesn't exists in B.
alt/base_attr3_alt4.nit:114,2--9: Error: Method 'a3=' doesn't exists in B.
alt/base_attr3_alt4.nit:119,2--5: Error: Method 'a6' doesn't exists in B.
alt/base_attr3_alt4.nit:125,2--5: Error: Method 'a9' doesn't exists in B.
alt/base_attr3_alt4.nit:128,2--10: Error: Method 'a10=' doesn't exists in B.
alt/base_attr3_alt4.nit:130,2--10: Error: Method 'a11=' doesn't exists in B.
alt/base_attr3_alt4.nit:131,2--6: Error: Method 'a12' doesn't exists in B.
alt/base_attr3_alt4.nit:132,2--10: Error: Method 'a12=' doesn't exists in B.