The TOSCA_OUT log file can easily be accessed from the "Start SIMULIA Tosca Structure" page of Tosca Structure.gui.
TOSCA_OUT
Open TOSCA.OUT with the graphical user interface
TOSCA.OUT
Tosca Structure.gui opens the file TOSCA_OUT that is located in the working directory of the current job.
A basic search functionality is included in the text viewer to find warning or error messages.