  We study nonequilibrium Andreev resonances in a voltage-biased graphene
three-terminal Josephson junction (JJ). We observe periodic oscillations of
resistance with maxima at multiples of the magnetic flux quantum (noninversion
regime). As we increase the bias voltage, we further observe a transition point
beyond which oscillations exhibit a $\pi$ phase shift (inversion regime) with
maxima of resistance occuring at multiples of half-flux quantum. At this
transition point, the frequency of the oscillations is doubled. We develop a
model based on the coupling of the static Andreev bound states (ABSs) to the
nonequilibrium Fermi surface of graphene to explain the observed noninversion
to inversion crossovers. Our model associates these crossovers to microscopic
phase-sensitive Andreev reflections which couple the normal and superfluid
components of the current. Our findings show that multiterminal JJs can be used
to engineer unconventional energy-phase relations such as those expected in the
$\pi$-shifted ABSs without relying on quartet and Floquet physics. These
nonequilibrium ABSs could potentially find applications in superconducting
$\pi$ qubits.
