Solution : https://service.sap.com/sap/support/notes/813691 (SAP Service marketplace login required)
Key words : 
support package 4 [trace] default min/max waiting times <time>, transaction /sapapo/opt09 -> select row -> extras -> trace file, error message /sapapo/opt_vsr_msg 201, error creating model reason, optimizer-internal model setup, [trace] optimizer expects, error creating model, [trace] break starting, model setup failed, note 741446 [trace] incompatibility
Related Notes : 
       
| 924586 | |
| 907906 | |
| 883574 | |
| 857475 | SCM 5.0: Installing an APO optimizer version | 
| 818855 | |
| 741446 | |
| 703774 | SCM 4.1: Installing an APO Optimizer version | 
| 603828 | APO 4.0: Importing an optimizer version |