Dear ALPS,
thank you for existing!
I found something that looks like a bug. I use the worm algorithm (Windows XP) with the following parameter file. When I run the code, it exits without giving any detail. If I change the letter W with any other letter it works.
LATTICE="square lattice"; L=4; MODEL_LIBRARY="pairedBEC.model.xml" MODEL="boson Hubbard"; NONLOCAL=0; V = 1.0; W = 0.1; mu = 0.5; Nmax = 2; T = 0.1; SWEEPS=500000; THERMALIZATION=10000; { t=0.01; }