lldb

first create a debug version of the app by compiling with -g

lldb myExecutable
> run
# when program stops because of EXC_BAD_ACCESS type:
> frame variable

run with arguments

lldb myExecutable
> run -o"/Users/rick/Documents/openFrameworks/of0092" -a"ofxCv,ofxOpenCv" -p"osx" "/Users/rick/Documents/openFrameworks/of0092/apps/myApps/cvBgTest9"

stacktrace

> bt