code: def test_supplement_a_subspace_2():
      M = DM([[1, 0, 0], [2, 0, 0]], QQ).transpose()
      with raises(DMRankError):
          supplement_a_subspace(M)
  
file_path: sympy/sympy/polys/numberfields/tests/test_utilities.py
imports: from sympy.abc import x
  from sympy.core.numbers import I, Rational
  from sympy.core.singleton import S
  from sympy.functions.elementary.miscellaneous import sqrt
  from sympy.polys import Poly, cyclotomic_poly
  from sympy.polys.domains import FF, QQ
  from sympy.polys.matrices import DomainMatrix, DM
  from sympy.polys.matrices.exceptions import DMRankError
  from sympy.polys.numberfields.utilities import AlgIntPowers, coeff_search, extract_fundamental_discriminant, isolate, supplement_a_subspace
  from sympy.printing.lambdarepr import IntervalPrinter
  from sympy.testing.pytest import raises
label_desc: Use image node_id 6 for calling a global function with example usage: test_supplement_a_subspace_2() without return types