v6.8.1
Updated emergentheta, and added support for atomic variables.
Modified subprojects (since v6.7.2):
cfa/cfa-analysis
common/analysis
common/core
frontends/c-frontend
solver/solver-z3-legacy
sts/sts-analysis
xcfa/c2xcfa
xcfa/litmus2xcfa
xcfa/xcfa
xcfa/xcfa-analysis
xcfa/xcfa-cli
xsts/xsts
xsts/xsts-analysis