impure_func_t5_fixed.m:026: In clause for `main(di, uo)':
impure_func_t5_fixed.m:026:   in argument 2 (i.e. argument 1 of the called
impure_func_t5_fixed.m:026:   function) of impure higher-order function call:
impure_func_t5_fixed.m:026:   mode error: variable `V_12' has instantiatedness
impure_func_t5_fixed.m:026:   `free',
impure_func_t5_fixed.m:026:   expected instantiatedness was `ground'.
impure_func_t5_fixed.m:026:   The goal could not be reordered, because it was
impure_func_t5_fixed.m:026:   impure.