ipopt_ref.opt

print_level 5

max_iter 5000
#max_cpu_time 1200
tol 1e-6

mu_strategy monotone
#mu_strategy adaptive

#linear_solver ma57
#ma57_pivtol 1e-4
#ma57_automatic_scaling yes

fixed_variable_treatment relax_bounds
#hessian_approximation_space all-variables
#hessian_approximation limited-memory
#limited_memory_max_history 12
#limited_memory_max_skipping 1

nlp_scaling_method none
#nlp_scaling_max_gradient 1000000
#nlp_scaling_min_value 1e-16

#recalc_y yes
#recalc_y_feas_tol 1e-6

inf_pr_output internal 
constr_mult_init_max 0 
residual_ratio_max 1e3 
residual_ratio_singular 1e4

#obj_scaling_factor 0.9

#derivative_test second-order
#derivative_test_perturbation 1e-8
derivative_test_tol 1e-2