GAMS/Cplex out-of-memory issue

This model runs out of memory in the branch-and-bound.

Elapsed real time = 15952.23 sec. (tree size = 1929.62 MB, solutions = 5)
Nodefile size = 1802.18 MB (732.60 MB after compression)
 2237100 2069567        2.0773    84        2.1636        2.0742 53354065    4.13%
 2237200 2069665        2.0742    86        2.1636        2.0742 53356034    4.13%
 2237300 2069763        2.0773    87        2.1636        2.0742 53358318    4.13%
 2237400 2069857        2.0758    84        2.1636        2.0742 53360030    4.13%
 2237500 2069955        2.0758    84        2.1636        2.0742 53362567    4.13%
 2237600 2070055        2.0742    86        2.1636        2.0742 53364576    4.13%
 
Warning: MIP starts not constructed because of out-of-memory status.
 
Consider using CPLEX node files to reduce memory usage.
CPLEX Error  1001: Out of memory.

It would be useful if this case would be handled more gracefully. Now it just stops and no solution is returned:

**** SOLVER STATUS     4 TERMINATED BY SOLVER
**** MODEL STATUS      14 NO SOLUTION RETURNED
**** OBJECTIVE VALUE                0.0000
 
 RESOURCE USAGE, LIMIT      15955.664     21600.000
 ITERATION COUNT, LIMIT         0         10000

It should be possible to allocate memory before starting the branch-and-bound so that always the best integer solution so far can be reported. Note also that the iteration count reported is wrong.