< norm of dual residual
< number of iterations taken
< primal objective
< time taken for polish phase (seconds)
< norm of primal residual
< best rho estimate so far from residuals
< number of rho updates
< total time (seconds)
< time taken for setup phase (seconds)
< time taken for solve phase (seconds)
< status string, e.g. 'solved'
< polish status: successful (1), unperformed (0), (-1) unsuccessful
< status as c_int, defined in constants.h
< time taken for update phase (seconds)
Solver return information