OMSimulator -r=ModelicaTest_3.2.3_ModelicaTest.MultiBody.FourbarVariants.JointUSR_res.mat --tempDir=temp_ModelicaTest_3_2_3_ModelicaTest_MultiBody_FourbarVariants_JointUSR_fmu --startTime=0 --stopTime=2 --timeout=50 --tolerance=1e-06 ModelicaTest_3_2_3_ModelicaTest_MultiBody_FourbarVariants_JointUSR.fmu
info:    Set temp directory to    "/tmp/omsimulator"
info:    Set working directory to "."
info:    New temp directory has been created: "temp_ModelicaTest_3_2_3_ModelicaTest_MultiBody_FourbarVariants_JointUSR_fmu"
info:    Set temp directory to    "/var/lib/jenkins1/ws/OpenModelicaLibraryTestingWork/OpenModelicaLibraryTesting/ModelicaTest_3.2.3_ModelicaTest.MultiBody.FourbarVariants.JointUSR/temp_ModelicaTest_3_2_3_ModelicaTest_MultiBody_FourbarVariants_JointUSR_fmu"
info:    Set working directory to "/var/lib/jenkins1/ws/OpenModelicaLibraryTestingWork/OpenModelicaLibraryTesting/ModelicaTest_3.2.3_ModelicaTest.MultiBody.FourbarVariants.JointUSR"
info:    New model "model" with corresponding temp directory "/var/lib/jenkins1/ws/OpenModelicaLibraryTestingWork/OpenModelicaLibraryTesting/ModelicaTest_3.2.3_ModelicaTest.MultiBody.FourbarVariants.JointUSR/temp_ModelicaTest_3_2_3_ModelicaTest_MultiBody_FourbarVariants_JointUSR_fmu/model-fvjt4feo"
info:    maximum step size for 'model.root': 0.100000
info:    No result file will be created
warning: fmu (logStatusWarning): /home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 3.2.3+maint.om/Mechanics/MultiBody/Joints.mo:7844: The following assertion has been violated at time 1.252525
         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.
error:   [fmi2logger] fmu (logFmi2Call): fmi2CompletedIntegratorStep: terminated by an assertion.
error:   [stepUntil] fmi2_import_completed_integrator_step failed for FMU "model.root.fmu"
warning: fmu (logStatusWarning): /home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 3.2.3+maint.om/Mechanics/MultiBody/Joints.mo:7844: The following assertion has been violated at time 1.272727
         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.
error:   [fmi2logger] fmu (logFmi2Call): fmi2CompletedIntegratorStep: terminated by an assertion.
error:   [stepUntil] fmi2_import_completed_integrator_step failed for FMU "model.root.fmu"
warning: fmu (logStatusWarning): /home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 3.2.3+maint.om/Mechanics/MultiBody/Joints.mo:7844: The following assertion has been violated at time 1.292929
         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.
error:   [fmi2logger] fmu (logFmi2Call): fmi2CompletedIntegratorStep: terminated by an assertion.
error:   [stepUntil] fmi2_import_completed_integrator_step failed for FMU "model.root.fmu"
warning: fmu (logStatusWarning): /home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 3.2.3+maint.om/Mechanics/MultiBody/Joints.mo:7844: The following assertion has been violated at time 1.313131
         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.
error:   [fmi2logger] fmu (logFmi2Call): fmi2CompletedIntegratorStep: terminated by an assertion.
error:   [stepUntil] fmi2_import_completed_integrator_step failed for FMU "model.root.fmu"
warning: fmu (logStatusWarning): /home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 3.2.3+maint.om/Mechanics/MultiBody/Joints.mo:7844: The following assertion has been violated at time 1.333333
         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.
error:   [fmi2logger] fmu (logFmi2Call): fmi2CompletedIntegratorStep: terminated by an assertion.
error:   [stepUntil] fmi2_import_completed_integrator_step failed for FMU "model.root.fmu"
warning: fmu (logStatusWarning): /home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 3.2.3+maint.om/Mechanics/MultiBody/Joints.mo:7844: The following assertion has been violated at time 1.353535
         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.
error:   [fmi2logger] fmu (logFmi2Call): fmi2CompletedIntegratorStep: terminated by an assertion.
error:   [stepUntil] fmi2_import_completed_integrator_step failed for FMU "model.root.fmu"
warning: fmu (logStatusWarning): /home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 3.2.3+maint.om/Mechanics/MultiBody/Joints.mo:7844: The following assertion has been violated at time 1.373737
         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.
error:   [fmi2logger] fmu (logFmi2Call): fmi2CompletedIntegratorStep: terminated by an assertion.
error:   [stepUntil] fmi2_import_completed_integrator_step failed for FMU "model.root.fmu"
warning: fmu (logStatusWarning): /home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 3.2.3+maint.om/Mechanics/MultiBody/Joints.mo:7844: The following assertion has been violated at time 1.393939
         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.
error:   [fmi2logger] fmu (logFmi2Call): fmi2CompletedIntegratorStep: terminated by an assertion.
error:   [stepUntil] fmi2_import_completed_integrator_step failed for FMU "model.root.fmu"
warning: fmu (logStatusWarning): /home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 3.2.3+maint.om/Mechanics/MultiBody/Joints.mo:7844: The following assertion has been violated at time 1.414141
         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.
error:   [fmi2logger] fmu (logFmi2Call): fmi2CompletedIntegratorStep: terminated by an assertion.
error:   [stepUntil] fmi2_import_completed_integrator_step failed for FMU "model.root.fmu"
warning: fmu (logStatusWarning): /home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 3.2.3+maint.om/Mechanics/MultiBody/Joints.mo:7844: The following assertion has been violated at time 1.434343
         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.
error:   [fmi2logger] fmu (logFmi2Call): fmi2CompletedIntegratorStep: terminated by an assertion.
error:   [stepUntil] fmi2_import_completed_integrator_step failed for FMU "model.root.fmu"
warning: fmu (logStatusWarning): /home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 3.2.3+maint.om/Mechanics/MultiBody/Joints.mo:7844: The following assertion has been violated at time 1.454545
         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.
error:   [fmi2logger] fmu (logFmi2Call): fmi2CompletedIntegratorStep: terminated by an assertion.
error:   [stepUntil] fmi2_import_completed_integrator_step failed for FMU "model.root.fmu"
warning: fmu (logStatusWarning): /home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 3.2.3+maint.om/Mechanics/MultiBody/Joints.mo:7844: The following assertion has been violated at time 1.474747
         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.
error:   [fmi2logger] fmu (logFmi2Call): fmi2CompletedIntegratorStep: terminated by an assertion.
error:   [stepUntil] fmi2_import_completed_integrator_step failed for FMU "model.root.fmu"
warning: fmu (logStatusWarning): /home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 3.2.3+maint.om/Mechanics/MultiBody/Joints.mo:7844: The following assertion has been violated at time 1.494949
         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.
error:   [fmi2logger] fmu (logFmi2Call): fmi2CompletedIntegratorStep: terminated by an assertion.
error:   [stepUntil] fmi2_import_completed_integrator_step failed for FMU "model.root.fmu"
warning: fmu (logStatusWarning): /home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 3.2.3+maint.om/Mechanics/MultiBody/Joints.mo:7844: The following assertion has been violated at time 1.515152
         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.
error:   [fmi2logger] fmu (logFmi2Call): fmi2CompletedIntegratorStep: terminated by an assertion.
error:   [stepUntil] fmi2_import_completed_integrator_step failed for FMU "model.root.fmu"
warning: fmu (logStatusWarning): /home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 3.2.3+maint.om/Mechanics/MultiBody/Joints.mo:7844: The following assertion has been violated at time 1.535354
         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.
error:   [fmi2logger] fmu (logFmi2Call): fmi2CompletedIntegratorStep: terminated by an assertion.
error:   [stepUntil] fmi2_import_completed_integrator_step failed for FMU "model.root.fmu"
warning: fmu (logStatusWarning): /home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 3.2.3+maint.om/Mechanics/MultiBody/Joints.mo:7844: The following assertion has been violated at time 1.555556
         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.
error:   [fmi2logger] fmu (logFmi2Call): fmi2CompletedIntegratorStep: terminated by an assertion.
error:   [stepUntil] fmi2_import_completed_integrator_step failed for FMU "model.root.fmu"
warning: fmu (logStatusWarning): /home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 3.2.3+maint.om/Mechanics/MultiBody/Joints.mo:7844: The following assertion has been violated at time 1.575758
         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.
error:   [fmi2logger] fmu (logFmi2Call): fmi2CompletedIntegratorStep: terminated by an assertion.
error:   [stepUntil] fmi2_import_completed_integrator_step failed for FMU "model.root.fmu"
warning: fmu (logStatusWarning): /home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 3.2.3+maint.om/Mechanics/MultiBody/Joints.mo:7844: The following assertion has been violated at time 1.595960
         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.
error:   [fmi2logger] fmu (logFmi2Call): fmi2CompletedIntegratorStep: terminated by an assertion.
error:   [stepUntil] fmi2_import_completed_integrator_step failed for FMU "model.root.fmu"
warning: fmu (logStatusWarning): /home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 3.2.3+maint.om/Mechanics/MultiBody/Joints.mo:7844: The following assertion has been violated at time 1.616162
         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.
error:   [fmi2logger] fmu (logFmi2Call): fmi2CompletedIntegratorStep: terminated by an assertion.
error:   [stepUntil] fmi2_import_completed_integrator_step failed for FMU "model.root.fmu"
warning: fmu (logStatusWarning): /home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 3.2.3+maint.om/Mechanics/MultiBody/Joints.mo:7844: The following assertion has been violated at time 1.636364
         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.
error:   [fmi2logger] fmu (logFmi2Call): fmi2CompletedIntegratorStep: terminated by an assertion.
error:   [stepUntil] fmi2_import_completed_integrator_step failed for FMU "model.root.fmu"
warning: fmu (logStatusWarning): /home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 3.2.3+maint.om/Mechanics/MultiBody/Joints.mo:7844: The following assertion has been violated at time 1.656566
         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.
error:   [fmi2logger] fmu (logFmi2Call): fmi2CompletedIntegratorStep: terminated by an assertion.
error:   [stepUntil] fmi2_import_completed_integrator_step failed for FMU "model.root.fmu"
warning: fmu (logStatusWarning): /home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 3.2.3+maint.om/Mechanics/MultiBody/Joints.mo:7844: The following assertion has been violated at time 1.676768
         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.
error:   [fmi2logger] fmu (logFmi2Call): fmi2CompletedIntegratorStep: terminated by an assertion.
error:   [stepUntil] fmi2_import_completed_integrator_step failed for FMU "model.root.fmu"
warning: fmu (logStatusWarning): /home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 3.2.3+maint.om/Mechanics/MultiBody/Joints.mo:7844: The following assertion has been violated at time 1.696970
         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.
error:   [fmi2logger] fmu (logFmi2Call): fmi2CompletedIntegratorStep: terminated by an assertion.
error:   [stepUntil] fmi2_import_completed_integrator_step failed for FMU "model.root.fmu"
warning: fmu (logStatusWarning): /home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 3.2.3+maint.om/Mechanics/MultiBody/Joints.mo:7844: The following assertion has been violated at time 1.717172
         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.
error:   [fmi2logger] fmu (logFmi2Call): fmi2CompletedIntegratorStep: terminated by an assertion.
error:   [stepUntil] fmi2_import_completed_integrator_step failed for FMU "model.root.fmu"
warning: fmu (logStatusWarning): /home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 3.2.3+maint.om/Mechanics/MultiBody/Joints.mo:7844: The following assertion has been violated at time 1.737374
         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.
error:   [fmi2logger] fmu (logFmi2Call): fmi2CompletedIntegratorStep: terminated by an assertion.
error:   [stepUntil] fmi2_import_completed_integrator_step failed for FMU "model.root.fmu"
warning: fmu (logStatusWarning): /home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 3.2.3+maint.om/Mechanics/MultiBody/Joints.mo:7844: The following assertion has been violated at time 1.757576
         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.
error:   [fmi2logger] fmu (logFmi2Call): fmi2CompletedIntegratorStep: terminated by an assertion.
error:   [stepUntil] fmi2_import_completed_integrator_step failed for FMU "model.root.fmu"
stdout            | warning | The default linear solver fails, the fallback solver with total pivoting is started at time 1.777778. That might raise performance issues, for more information use -lv LOG_LS.
warning: fmu (logStatusWarning): /home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 3.2.3+maint.om/Mechanics/MultiBody/Joints.mo:7844: The following assertion has been violated at time 1.777778
         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.
error:   [fmi2logger] fmu (logFmi2Call): fmi2CompletedIntegratorStep: terminated by an assertion.
error:   [stepUntil] fmi2_import_completed_integrator_step failed for FMU "model.root.fmu"
warning: fmu (logStatusWarning): /home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 3.2.3+maint.om/Mechanics/MultiBody/Joints.mo:7844: The following assertion has been violated at time 1.797980
         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.
error:   [fmi2logger] fmu (logFmi2Call): fmi2CompletedIntegratorStep: terminated by an assertion.
error:   [stepUntil] fmi2_import_completed_integrator_step failed for FMU "model.root.fmu"
warning: fmu (logStatusWarning): /home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 3.2.3+maint.om/Mechanics/MultiBody/Joints.mo:7844: The following assertion has been violated at time 1.818182
         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.
error:   [fmi2logger] fmu (logFmi2Call): fmi2CompletedIntegratorStep: terminated by an assertion.
error:   [stepUntil] fmi2_import_completed_integrator_step failed for FMU "model.root.fmu"
warning: fmu (logStatusWarning): /home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 3.2.3+maint.om/Mechanics/MultiBody/Joints.mo:7844: The following assertion has been violated at time 1.838384
         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.
error:   [fmi2logger] fmu (logFmi2Call): fmi2CompletedIntegratorStep: terminated by an assertion.
error:   [stepUntil] fmi2_import_completed_integrator_step failed for FMU "model.root.fmu"
warning: fmu (logStatusWarning): /home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 3.2.3+maint.om/Mechanics/MultiBody/Joints.mo:7844: The following assertion has been violated at time 1.858586
         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.
error:   [fmi2logger] fmu (logFmi2Call): fmi2CompletedIntegratorStep: terminated by an assertion.
error:   [stepUntil] fmi2_import_completed_integrator_step failed for FMU "model.root.fmu"
warning: fmu (logStatusWarning): /home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 3.2.3+maint.om/Mechanics/MultiBody/Joints.mo:7844: The following assertion has been violated at time 1.878788
         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.
error:   [fmi2logger] fmu (logFmi2Call): fmi2CompletedIntegratorStep: terminated by an assertion.
error:   [stepUntil] fmi2_import_completed_integrator_step failed for FMU "model.root.fmu"
warning: fmu (logStatusWarning): /home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 3.2.3+maint.om/Mechanics/MultiBody/Joints.mo:7844: The following assertion has been violated at time 1.898990
         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.
error:   [fmi2logger] fmu (logFmi2Call): fmi2CompletedIntegratorStep: terminated by an assertion.
error:   [stepUntil] fmi2_import_completed_integrator_step failed for FMU "model.root.fmu"
warning: fmu (logStatusWarning): /home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 3.2.3+maint.om/Mechanics/MultiBody/Joints.mo:7844: The following assertion has been violated at time 1.919192
         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.
error:   [fmi2logger] fmu (logFmi2Call): fmi2CompletedIntegratorStep: terminated by an assertion.
error:   [stepUntil] fmi2_import_completed_integrator_step failed for FMU "model.root.fmu"
warning: fmu (logStatusWarning): /home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 3.2.3+maint.om/Mechanics/MultiBody/Joints.mo:7844: The following assertion has been violated at time 1.939394
         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.
error:   [fmi2logger] fmu (logFmi2Call): fmi2CompletedIntegratorStep: terminated by an assertion.
error:   [stepUntil] fmi2_import_completed_integrator_step failed for FMU "model.root.fmu"
warning: fmu (logStatusWarning): /home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 3.2.3+maint.om/Mechanics/MultiBody/Joints.mo:7844: The following assertion has been violated at time 1.959596
         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.
error:   [fmi2logger] fmu (logFmi2Call): fmi2CompletedIntegratorStep: terminated by an assertion.
error:   [stepUntil] fmi2_import_completed_integrator_step failed for FMU "model.root.fmu"
warning: fmu (logStatusWarning): /home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 3.2.3+maint.om/Mechanics/MultiBody/Joints.mo:7844: The following assertion has been violated at time 1.979798
         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.
error:   [fmi2logger] fmu (logFmi2Call): fmi2CompletedIntegratorStep: terminated by an assertion.
error:   [stepUntil] fmi2_import_completed_integrator_step failed for FMU "model.root.fmu"
warning: fmu (logStatusWarning): /home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 3.2.3+maint.om/Mechanics/MultiBody/Joints.mo:7844: The following assertion has been violated at time 2.000000
         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.
error:   [fmi2logger] fmu (logFmi2Call): fmi2CompletedIntegratorStep: terminated by an assertion.
error:   [stepUntil] fmi2_import_completed_integrator_step failed for FMU "model.root.fmu"
info:    Final Statistics for 'model.root':
         NumSteps = 626 NumRhsEvals  = 1145 NumLinSolvSetups = 166
         NumNonlinSolvIters = 1144 NumNonlinSolvConvFails = 1 NumErrTestFails = 50
info:    38 warnings
info:    76 errors