XPRSmipoptimize - received signal SIGFPE, Arithmetic exception.

The problem occurs only from the program, IVE on Windows seems to solve just fine. The console optimizer on the same machine does however not run because of a missing library libncurses.so.5 (libncurses.so.6 is installed). This is a recent XPRESS upgrade as 8.5 was previously installed.

$ file /opt/xpressmp/bin/optimizer
 
/opt/xpressmp/bin/optimizer: ELF 64-bit LSB executable, x86-64, version 1 (SYSV), dynamically linked, interpreter /lib64/ld-linux-x86-64.so.2, for GNU/Linux 2.6.32, BuildID[sha1]=cbe6d2c2dd85a0ed171495954b8cec9b1f20c54a, stripped

And this is the beginning of xphostid

$ /opt/xpressmp/bin/xphostid
 
== FICO Xpress host ID tool ==
 
== (c) Fair Isaac Corporation 2005-2022. All rights reserved ==
 
When applying for a license you must send the entire text printed below to your vendor:
 
 
 
<xphostid version="3.2.5" xpress="9.0" build="linux_x86_64">

I attached the relevant matrix file.

Thank you very much.

Also, in my original message, when I said:

"XPRSloadmip, XPRSchgobjsense and XPRSmipoptimize return 0, so no error is detected in those steps."

I meant:

XPRSloadmip, XPRSchgobjsense and XPRSwriteprob return 0, so no error is detected in those steps.

XPRSmipoptimize never actually returns anything as the function call does not complete and is interrupted by the exception mentioned in my message.