Solve several problems without restarting Python

[bilelouahmed]

Hello !

I have a use case in which I have to solve several constraint problems but I don't know how to assign new variables without restarting the Python kernel.

Example :

for i in range(10):
  x = VarArray(10, [0,1])
  satisfy( blablabla)
  solve()

ERROR: The identifier x is used twice. This is not possible
(add option -ev to your command if you want to see the trace of the error)
An exception has occurred, use %tb to see the full traceback.
SystemExit: 1

Thanks !

[xcsp3team]

Hello,

Two ways you can try:

• call clear() after solve() in order to discard everything (variables and constraints)

• declare the array x before starting the loop
  Please, tell us if this addresses your problem.

  Best.