testlist <- list(a = c(3.17535206314535e-169, -1.58924892278167e+208, -8.0933478189825e-284,  -7.57531740871858e-219, -6.41610296480439e-213, 4.45989147041503e-203,  Inf, NaN, 1.16104979504483e-228, Inf, -5.28726825699294e-254,  2.23197145335556e-258, -1.16933036668423e-157, NaN, -0.89869088198075,  0), ap = c(-4.49618090830379e+157, 5.04595290292852e+178, 1.37316491487755e-24,  -8.85137585431585e-122, 2.01936876858925e+84, 2.19177639724883e-13,  3.31605986045184e+120, -2.26935323275203e-162, 1.91450027734916e+144,  -6.92312279080702e-71, -1.05588046323958e-186, 6.57325441311303e-268,  -1.94917901787713e-80, 1.22213998820296e-17, Inf, 1.29304892289677e+32,  -7.60302459392068e+154, 3.99059049974634e-59, -5.69741567070797e+237,  -9.13372210721055e+274, 4.22415637407922e+105, 2.66793745586936e+162,  -2.56081045624407e+266, 1.28559121480931e-111, 2.15431507879181e-162,  -0.00184440705040292, -5.82037371307912e-53, -4.91579625142401e-212,  -3.50203428771872e-45, 4.58899627146579e-111, 1.45440360792197e+218,  44.7923491400982, 1.51895440441829e-108, 1.21976326484789e-12,  NA, -3.48261920768837e-94, -1.67696187461601e-52, -5.59446462460523e-160,  3.17526207664333e+282, -4.331195091433e+237, -3.00455421613172e-161,  -3.58989658355585e+214, 1.68432845250586e+185, 3.08862773529058e-226,  3.18925402432775e-289, -42567180731296.2, 4.64869642694538e-84,  -3.00455421613172e-161, 1.51298973735367e+57, 3.26423890701405e+192,  -7.55563162607975e+100, 6949.7023232125, 1.03377201491197e-212,  -1.38280665150046e+106, -7.69205836891303e+29, 1.39857044301923e-74,  NA, 2.73374454934342e+123, 3.87163428991588e-112, -2.74199857642503e-278,  -3.59533009123259e-134, 4.97238793408065e+292, -3.81140988982929e-257,  5.21211826501725e-237, 3.55882330610313e+282, -6.95800426280755e+212,  -6.6181522981634e-147, 1.16969118014919e+76, -3.98333490312757e+71,  5.73137338597832e-243, -8.11182956069864e-175, 1.23913877916143e-118,  0), at = c(-1.84056696634713e-184, Inf, -2.14881812149838e-284,  Inf, 3.38729356736558e+97, 2.14449278200284e+225, -2.68520201100346e+285,  3.30624162222981e+229, -1.60941976954937e-270, -3.01701236578501e+145,  -5.27683286451146e+285, 4.90198849244951e-306, -9.39209553302243e+114,  3.3558288000331e+27, 1.1205916652481e+222, -4.19762312920483e-214,  1.05139969643019e+21, 6.12570128293046e+106, 158257752265.304,  -5.08004283010927e-258, 9.2688180362665e-180, 8.75098899774496e+230,  6.63926649846639e-172, -1.94043665106004e-242, -9.53100597126952e+303,  -3.79945240249793e-60, -3.77213430157306e-46, 5.94600940364071e-266,  1.02000034663342e+79, 3.28437635975272e-305, 6.10523695472988e+43,  2.35200875902575e-291, -9.87178420316212e-206, -4.48839787970856e+105,  -1.47392385061479e-164, 5.35243674098962e+138, 1.27236826762915e+123,  587390542280.739, -3.71165767221309e+39, NA, Inf, 2.34746451682376e-137,  -1.34644690493913e-171, -5.84680800132219e-272, -1.22105550795599e-100,  -9.40025325089107e-07, 0), atp = c(-3.37878593056041e-92, 4.69573721653647e-201,  -6.34590982171978e+51, 1.85210597292835e+227, -2.50127272380395e-112,  -1.42993907115407e-115, -1.14028527165573e-280, 6.2551188087231e-139,  -6.77710404539242e+59, 1.90839630016334e-238, -3.68929543517025e+224,  Inf, Inf, -8.65113126283486e+22, -3.33044818796232e+297, -3.66324274240324e+229,  -3.73652141152873e+90, -1.02746590511816e-227, -1.1485601339945e-204,  9.18810470783342e+66, NaN, -8.26756632294816e-69, -6.38454732364392e-103,  -3.47547805050415e+65, 7.66959815961241e-123, NA, -8.24345634306379e+294,  NA, -6.4436131028267e-225, 0), b = c(2.34893451681081e+287, -1.96483035804747e+115,  3.17181027257122e-260, -1.80570793485021e+289, 3.32569224230134e+280,  2.16342111225046e-20, -6.03466160519422e-190, -3.16174965371967e+211,  1.35149648085282e+117, -9.18187673657722e+238, -3.16174965371967e+211,  NaN, -2.96429870813661e+169, 2.38880288735857e-35, 8.01145698581436e-161,  1.23902146594725e-126, -7.12745563360167e-40, -4.82964853924642e-297,  1.75115091251775e-134, -6.40082441002843e-126, 4.73633762908249e+223,  -9.03978775227564e-36, -4.79253591581615e+157, -1.61577742354743e+84,  -4.73331382239052e-06, 0.0323217782299472, 2.04114480729198e-11,  3.23905160483625e+284, 7.11028299353926e-210, -6.34342813133514e+206,  -3.12198757753381e-12, 4.36122890837507e+165, 1.55309752975345e-256,  1.68624301881445e+202, -8.33628478559577e+274, 7.30559238978735e+34,  1.26182490184809e-273, -1.54600379537696e-118, 1796780944970980864,  9.21834706364783e-304, -6.35069866213825e-282, NaN, 4.53099125648832e+62,  -2.73034730557434e+28, 2.17484437020891e-277, 8.18059390625223e+130,  -4.01460971180356e+61, -4.57252418650285e+197, -2.94196026899337e-274,  -1.02494992778921e-212, -7.76926394245873e+202, -1.02344062829757e-71,  -3.85695762460594e+173, -2.06701845060978e-81, 4.68377859390465e+145,  -2.52524777561631e-36, 1.1820660881347e+93, 1.73392560871587e+204,  -1.11420364161414e+292, 1.93306608291678e-307, 1.4107649200417e-133,  -2.68713413657628e-49, -Inf, -8.91704521230636e-151, 1.79868127803413e-147,  -3.16784267044097e+74, 4.23319489277287e+293, 2.22596509728091e-177,  6.23668845942876e-77, 4.27987477352483e-278, -7.24798943959023e+71,  1.10395175067602e+124, 1.09837234741391e-136, 1.46848955607182e+242,  1.8256523872102e-213, -7.31123404945198e-293, 8.97599279211972e-123,  2.30939857969829e-103, -2.62325597947177e+159, 5.32950662693366e+291,  -1.93606101929925e-198, -3.12241657194395e+184, 3.4868902562761e+100,  3.79816141005995e+188, 2.94324408021562e+102, 0), bt = c(5.43116388520037e-99,  7.45217754409984e-26, -1.44260171823335e-159, 3.20709814383234e-239,  2.04819094651277e-205, -2.42568668955903e+85, 3.636931636155e-81,  -1.79962167597975e+76, 1.11977569548047e+88, -5.98507364527905e+237,  1.67367656237195e-231, NaN, 2.08551947775634e+215, 1.10129385609301e+35,  2.79272887895083e+124, 7.33912985127501e+38, 9.20415677438843e+96,  3.04772819136484e+114, -2.03060821234919e-253, 1.11021936179056e+76,  3.29914897887093e-94, 6.3294823703603e+291, -2.84133655806828e-07,  4.5550273877566e+117, 1.40542442489693e+101, -5.09481806846998e+224,  -7.26523173479792e-79, 1.57334592671421e-305, 1.1669546322197e+227,  -Inf, 2.11042911708632e-124, 3.09423438222734e+301, 3.97392462023475e-10,  -7.04265378198874e+258, 2.27892931285932e+226, -8.07816253844295e+30,  -6.21752789151087e+43, -1.88250962313925e+214, -2.57873973792924e-304,  2.21992664154057e-148, -4.94827969667528e-39, 1.34399321333019e-304,  6.19315269000824e-69, 1.80182295777447e-141, -2.05097417753875e+102,  1.12732785699488e+293, -1.53050544826333e+123, -1.08015943772521e-16,  -1.97640041779821e+73, -5.70938470425499e-149, 8.36296621490541e-217,  3.64547415634211e+171, -6.64158151640579e+116, -1.96116122068901e-15,  -2.48596337134298e+217, -2.50261811309925e+253, -8.78770705119662e+144,  -9.90228976284177e+29, -1.21982926636836e-96, 2.59123238311096e-153,  1.79022937708811e+186, Inf, NA, -6.25376652390601e-12, 4.2523230562293e-166,  1.41496336849359e+299, -1.51709631633807e-38, -1.14963319736591e+223,  -1.08130701349509e-192, NaN, -1.23185576683386e+91, -4.83192821209627e-235,  4.31315594419451e+56, -44861789548.4001, -1.62633094829736e+255,  1.02899268900676e-153, 6.01889937209263e-138, -1.31991370934652e+113,  -4.99298331998584e+53, 0), na = 130869306L, nap = 1586898234L,      nb = -1833352193L, period = -1205723900L)
result <- do.call(highfrequency:::pcovcc,testlist)
str(result)