Solution is Not Optimized Compared to Other Solver Output

[ParthavK]

Hi,
I’ve been testing the solver using the provided input file:
input_01.json

Getting below result

Final statistics

Time (s): 45.0311

Solution

Number of items: 30 / 30 (100%)
Item area: 392421 / 392421 (100%)
Item profit: 392421 / 392421 (100%)
Number of bins: 1 / 1 (100%)
Bin area: 2000000 / 2000000 (100%)
Bin cost: 2e+06
Full waste: 1.60758e+06
Full waste (%): 80.379
X min: 10
Y min: 10
X max: 555.319
Y max: 988.363
Density X: 0.706659
Density Y: 0.198521
ODXY area: 533520
Leftover value: 1.45114e+06

Other third party solver

Can we get below optimised solution which is better?

I am observing that our solution results in an X max of 55.5319 cm, whereas the reference solution achieves 53.582 cm, indicating better horizontal compaction.

[fontanf]

Hi,

Thank you for this example.

I may have something in a few days to improve the solutions on this kind of problems with high height and low width. But I think that the solution you showed cannot be reached by the current algorithms of the solver.

[ParthavK]

Thanks for the update!

That sounds interesting—looking forward to your new solution. Whenever you implement the solution, please do inform here or share it in this discussion. It would be great to review and learn from it.