Regular simulation: ./ModelicaTest_3.2.1_ModelicaTest.MultiBody.FourbarVariants.JointUSR -abortSlowSimulation -alarm=480   -emit_protected -lv LOG_STATS
stdout            | info    | The initialization finished successfully without homotopy method.
assert            | warning | The following assertion has been violated at time 0.647200
|                 | |       | jointUSR.revolute.k1a > 1e-10
assert            | error   | 
|                 | |       | Singular position of loop (either no or two analytic solutions;
|                 | |       | the mechanism has lost one-degree-of freedom in this position).
|                 | |       | Try first to use another Modelica.Mechanics.MultiBody.Joints.Assemblies.JointXXX component.
|                 | |       | In most cases it is best that the joints outside of the JointXXX
|                 | |       | component are revolute and NOT prismatic joints. If this also
|                 | |       | lead to singular positions, it could be that this kinematic loop
|                 | |       | cannot be solved analytically. In this case you have to build
|                 | |       | up the loop with basic joints (NO aggregation JointXXX components)
|                 | |       | and rely on dynamic state selection, i.e., during simulation
|                 | |       | the states will be dynamically selected in such a way that in no
|                 | |       | position a degree of freedom is lost.
stdout            | warning | Integrator attempt to handle a problem with a called assert.
LOG_STATS         | info    | ### STATISTICS ###
|                 | |       | | timer
|                 | |       | | |    0.0709752s          reading init.xml
|                 | |       | | |   0.00415586s          reading info.xml
|                 | |       | | |  0.000741417s          pre-initialization
|                 | |       | | |  0.000308168s [  0.2%] initialization
|                 | |       | | |    1.787e-05s [  0.0%] steps
|                 | |       | | |    0.0210691s [ 14.8%] creating output-file
|                 | |       | | |  0.000548579s [  0.4%] event-handling
|                 | |       | | |   0.00533102s [  3.7%] overhead
|                 | |       | | |     0.114337s [ 80.3%] simulation
|                 | |       | | |     0.142354s [100.0%] total
|                 | |       | | events
|                 | |       | | |     0 state events
|                 | |       | | |     0 time events
|                 | |       | | solver: dassl
|                 | |       | | |   439 steps taken
|                 | |       | | |   820 calls of functionODE
|                 | |       | | |   106 evaluations of jacobian
|                 | |       | | |    46 error test failures
|                 | |       | | |     0 convergence test failures
|                 | |       | | | 0.00202044s time of jacobian evaluation
stdout            | info    | The simulation finished successfully.