Hello,I have implemented the simple nonlinear problem in AIMMS which uses the CONOPT 4.0 solver to solve it. But whenever I run the code, the objective function value changes and I get the warnings like: "Warning: After 252 iterations CONOPT 4.0 terminated and BasicStateEstimation is not yet optimal. The minimum found for obj is 704.122936573." It seems that the optimization procedure stops before convergence. Therefore, I checked the "stop criteria" from the "solver general" and "specific solver" icons and changed some of them, but I still have the same issue. Would you please tell me how I can solve this issue? Please let me know if you need the code. Regards
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