issue with expression exp(log(x)/y) reported from MWA

[nibrunie]

precision=binary32, fct_expr=exp(log(x)/y), target=generic, vector_size=1, debug=False, language=c, sub_vector_size=None, registered_pass_list=['check_processor_support']

URL: http://metalibmwebapp.appspot.com/function?fct_expr=exp%28log%28x%29%2Fy%29&io_format=binary32&range_lo=-infty&range_hi=%2Binfty&range_nan=True&vector_size=1&sub_vector_size=default&target=generic&language=c&new_pass=basic_block_simplification&registered_pass_list=check_processor_support&eval_error=True

`Error encountered:

Output:

Exception:
Traceback (most recent call last):
File "/home/MetalibmWebApp/myapp.py", line 399, in function
main_pre_statement, main_statement, function_group = fct_instance.instrument_function_group(function_only_group, enable_subexpr_sharing=True)
File "/home/metalibm/metalibm_core/core/ml_function.py", line 869, in instrument_function_group
test_ranges = self.auto_test_range)
File "/home/metalibm/metalibm_core/core/ml_function.py", line 1264, in generate_test_tables
test_case_list += list(self.generate_rand_input_iterator(test_num, test_ranges))
File "/home/metalibm/metalibm_core/core/ml_function.py", line 1201, in generate_rand_input_iterator
low_input = inf(test_ranges[in_id])
IndexError: list index out of range`