testlist <- list(cols = c(-709423862L, 1693996265L, 874270644L, 819746351L,  1283029671L, 308684195L, -127551131L, 1528585009L, -748078280L,  1636835733L, -1401926948L, 1285557401L, 428228651L, -328872220L,  -897103578L, -1549445257L, 244494191L, 584058062L, 1078897549L ), f = c(-319738006L, 1269764045L, -1042060815L, -1251384034L,  -350930628L, 2076980338L, 1353045404L, 1987800418L, 1822215351L,  NA, -1074922124L, 1466077762L, 2009890547L, -1733138968L, 1463518413L,  -1225707742L, -1896031783L, -681646442L, 1273170594L, 1184752829L,  1768075265L, 353823084L, 1366112775L, 1583950316L, 1694680637L,  -142315421L, -1881256235L, 2066977764L, -1790712406L, 1506678698L,  995209625L, -1160083936L, -582197955L, -131012217L, 238574985L,  1810918656L, 861055885L, 549599067L, 334099917L, -1015288416L ), x = structure(c(6.39540205109362e+128, 1.87085856712606e-59,  1.30150314991474e+289, 1.61022271287773e-22, 9.58020474097405e+157,  1.62647585800618e-217, 1.51198921740773e-301, 2.56204886967701e+145,  8.53357159088944e+276, 2.41586884595676e-279, 1.41446444866525e+300,  1.81806969359828e+70, 1.05961405941624e+63, 1.71348172968226e+23,  3.85250730291311e+40, 2.10194382067248e-19, 1.85953379335327e-94,  3.98203258704911e+203, 7.58914256741045e+299, 8.62812492490283e+89,  2.13445332535217e+118, 8.44753954349943e+108, 2.72496312936675e+277,  6.76492365547228e-57, 7.50586167404606e-230, 1.88351089786802e+128,  9.34283598456873e+252, 9.93979415030022e-257, 6.64092931552776e+78,  1.18744026783926e-18), .Dim = c(10L, 3L)), y = c(3.96709457654472e+161,  1.27908697326124e-52, 4.78605232762292e+109, 7.3743152627684e-288,  2.29013520567251e-47, 5.04400974620143e+140, -Inf, -Inf, 2.10880877114811e-35,  -2.65480281800843e+246, 4.46512942305604e+151, 1.46517148118916e+258,  2.14470086971152e+273, 4.41472864579235e-172, -3.18572261538908e-239,  -1.36637676658912e+130, 5.15706875371265e-165, 8.70570634845722e+101,  1.494394240137e-138, 2.65976677403056e-25, -1.70861577507925e+300,  -3.61831920580663e+111, -6.85014159786188e+251, -9.53484611393976e+225,  NaN, 4.17795991348531e+181, -3.84155006789089e-213, 5.2719705720911e+211,  1.26526148601746e+268, 1.93700057442335e+164, -8.62442764343466e-06,  -1.73523559813364e-184, 3.97771040745531e+93, -3.28380968731998e-71,  2.54335813162893e+296, 2.55988580003963e+114, 503309409708462,  2.80853367569739e+296, 9.22551418738672e+111, -8.36617069307534e-256,  1.74222401161979e-221, -4.54461270494257e+70, 1.68081155202381e+152,  -2.44249173646253e+91, NA, 7.02531124111404e-171, 6.23775212696001e+283,  8.49240168878597e-262, 1.00333904237875e-74, 0))
result <- do.call(cna:::C_conj_conCov,testlist)
str(result)