Trace file contents: 3 epochs.
		start	start	file	chunk
	epoch	index	time	offset	size
	0	0	0	#SIZE#	#SIZE#
	1	0	0	#SIZE#	#SIZE#
	2	4	0	#SIZE#	#SIZE#
Epoch 0: (initial values)
X X X X 
Epoch 1:
	event		event	cause	node	node
	index	time	node	index	index	value	rule/node
	0	0	0	0	0	X	(null)
	1	0	0	0	3	1	(c:1)
	2	0	0	0	1	1	(a:1)
	3	0	0	0	3	X	(c:X)
Epoch 2: (final values)
X 1 X X 
