[BCP] Getting "Assertion reference_count_ == 0"

[António Duarte]

Hello,

 

I’m implementing a column generation scheme and the branching consists in
adding a new cut with different bounds on each of the two childs. The
branching seems to be working well but I’m getting an error I can’t debug.
Here’s what’s happening:

 

After solving the root node and adding a few new columns, 2 child nodes are
generated and a dive is performed in one of them. Again the node is solved,
new columns are generated, branching is performed and a new dive occurs.
This keeps going on and everything seem ok until a valid solution is found
after a few dives. The LP asks TM for a new node with the following message:

 

Returned children to TM. Waiting for new node.

 

Then the error occurs:

 

pps: /home/jorge/bcp/buildg/include/coin/CoinSmartPtr.hpp:158: virtual
Coin::ReferencedObject::~ReferencedObject(): Assertion `reference_count_ ==
0' failed. Aborted LP:

 

I saw that LP is trying to delete variables I added in tm:create_root().

 

Anyone has a hint on what is happening?

 

Best regards,

António Duarte

 

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