Segmentation fault in project which includes Eigen3

[SlothDragon]

I was working on a project that made use of the Ipopt library in conjunction with the Eigen3 library to try to approximate the mean and standard deviation of a normal random variable, in this case, one with a mean 5 and standard deviation 2.5. I was able to successfully build and run the tests provided by Ipopt; furthermore, I was able to build my project. However, when I tried to run my application, it returned a segmentation fault. I have tried to use debugging packages, such as Valgrind, to no avail. I have tried making the project with both the Makefile provided by Ipopt and CMake; however, in all of my attempts, I get the same error. I have provided all the files and the Valgrind report associated with my project as txt files.
function_hpp.txt
function_cpp.txt
OU_optim_hpp.txt
OU_optim_cpp.txt
OU_process_cpp.txt
Makefile.txt
CMakeLists.txt
valgrind.txt

[svigerske]

In get_nlp_info(), you have

            n=2;
            m=0;
            nnz_jac_g=1;
            nnz_h_lag = 4;

If you don't have constraints, then you Jacobian also has no entries, so this should be nnz_jac_g.

In your Hessian implementation, you have

            for( Index row = 0; row < 4; row++ )
            {
                for( Index col = 0; col <= row; col++ )
                {
                    iRow[idx] = row;
                    jCol[idx] = col;
                    idx++;
                }
            }

But since you have only 2 variables, there should be only 2 rows and columns. And since only half of the (symmetry) Hessian should be provided, you probably meant nnz_h_lag=3.

[SlothDragon]

I have got it to work now. Thank you.