removed TODO comment and set problem.obj_val to Inf

Author: arnavk23

src/NLPModelsIpopt.jl

@@ -93,7 +93,7 @@ function SolverCore.reset!(solver::IpoptSolver, nlp::AbstractNLPModel)
   @assert nlp.meta.nvar == problem.n
   @assert nlp.meta.ncon == problem.m
 
-  problem.obj_val = 0.0
+  problem.obj_val = Inf
   problem.status = 0
   problem.x .= nlp.meta.x0
   eval_f, eval_g, eval_grad_f, eval_jac_g, eval_h = set_callbacks(nlp)
@@ -116,7 +116,6 @@ function SolverCore.reset!(solver::IpoptSolver)
   problem.status = -1  # Use -1 to indicate not solved yet
   problem.intermediate = nothing
 
-  # TODO: reset problem.ipopt_problem
   return solver
 end
 

test/runtests.jl

@@ -119,6 +119,7 @@ end
 end
 
 @testset "Test restart with a different initial guess" begin
+  f(x) = (x[1] - 1)^2 + 4 * (x[2] - x[1]^2)^2
   nlp = ADNLPModel(f, [-1.2; 1.0])
   stats = GenericExecutionStats(nlp)
   solver = IpoptSolver(nlp)