| E5003 | WARNING: E5003 | NON-POSITIVE DEFINITE CORRECTED AT GRID id COMPONENT n |
| Cause: | A negative term has been detected on the stiffness matrix factor diagonal during decomposition. The Solution Processor will attempt to correct problem by setting the term to the value set by FACTDIAG. This message will only occur if the SOLUTIONERROR model parameter is set to ON. Note that this is a debugging feature and the solution accuracy may be severely degraded. | |
| Action: | Check the EPSILON value in the Model Results Output or Results Summary File. Values greater than 0.001 indicate a possible loss of accuracy. Investigate the degree(s) of freedom at which the non-positive definite condition occurred. Check the Solution Processor output in the Model Results Output File for degrees of freedom with large factor diagonal ratios. A large factor diagonal ratio may indicate a mechanism. Also, check your model for isolated large stiffnesses or too few constraints. | |
| Remarks: | None. |