Good to think about what 2.0 will show in summary()?

With a goal of surfacing the almost-always wanted top-level detail for the user, and not showing things that are obtained elsewhere or are not summary data, then 4 elements that can perhaps be dropped are:
1. compute plan
2. data
3. timestamp
4. OpenMx version

Then perhaps a line of text beneath the summary saying:

"See help(OpenMx_Output) for examples of how to easily access expected and obtained data summarys, elapsed time, packageVersion("OpenMx"), the compute plan and more." [1]

In packageVersion("OpenMx") # [1] ‘999.0.0.3474’
summary on this model (and others) dumps a warning message and leaves fit statistics empty. the warning on summary() is:

Warning messages:
1: In `$.data.frame`(params, lbound) :
Name partially matched in data frame
2: In `$.data.frame`(params, ubound) :
Name partially matched in data frame

v1_6 = paste0("v",1:6) # [1] "v1" "v2" "v3" "v4" "v5" "v6"
x1_2 = c("x1", "x2")

covData <- matrix(nrow=6, ncol=6, byrow=TRUE, dimnames=list(v1_6, v1_6),
data = c(0.9223099, 0.1862938, 0.4374359, 0.8959973, 0.9928430, 0.5320662,

I found this bug when I was thinking about adding a test to be sure that mxStandardizeRAMpaths() behaves properly when the model contains an mxConstraint statement. The attached R script causes R to lock up and steadily take up more and more memory until it crashes. Sometimes, R displays a message to the console about std::bad_alloc before the window closes, but not always.