at time=0 Dymola tries to call functions with T=0, d=0, tau=0, delta=0;
check sat close to crit
Revert "at time=0 Dymola tries to call functions with T=0, d=0, tau=0, delta=0;"

This reverts commit c7f89543ec8a7e06a3044b5588770f3d5c63c232.