Lotka-Volterra 2d (singular Lagrangian) with Gauss-Legendre FIRK Integrators
GLRK(1)
SOLVER ERROR: Simulation crashed in time step 1. Detected NaN 
GLRK(2)
DOMAIN ERROR: Simulation crashed in time step 1. 
GLRK(3)
SOLVER ERROR: Simulation crashed in time step 1. Detected NaN 
GLRK(4)
DOMAIN ERROR: Simulation crashed in time step 1. 
GLRK(5)
DOMAIN ERROR: Simulation crashed in time step 1. 
GLRK(6)
SOLVER ERROR: Simulation crashed in time step 1. Detected NaN 