testlist <- list(end = -146297198L, lengths = c(-1354476257L, -1415734890L,  -904072580L, -1166765837L, 1976839337L, -510736979L, NA, -1098730899L,  -972518287L, -1524299921L, 1106963451L, 1853615844L, 1327205681L,  -1454121471L, 1928403504L, 1942854969L, -718689670L, 1320348048L,  -1395291366L, 1350237856L, -1785933506L, -542162863L, -1604681453L,  656297212L, -1046515815L, -1470093996L, 900820869L, 728573376L,  -101253416L, -1522652859L, -1716889408L, -928727793L, -1691114173L,  -1815439160L, 2064076454L, 1953719918L, 1785021967L, -1552919236L,  447610339L, 1387983597L, -308858751L, 1657293277L, -812153788L,  199930485L, 1341687027L, 1759063939L, -2027133223L, -430389548L,  -252291758L, -1080152178L, 917754433L, -1635469587L, 2101010661L,  336619675L, 1020163107L, 658175767L, 810314223L, -359104992L,  1280336362L, -719857838L, 1387804518L, -929038076L, 1853171605L,  -1356944161L, 1779814229L, -1370655238L, -1646795662L, -289684416L,  1945937467L, -1666760694L, 476553419L, -2041795600L, 1652180240L,  -944043420L, -1829841024L, -1449410275L, -1754834893L, 261635627L,  14612358L, 715290252L, 482122979L, 2007385865L, -1809938114L,  -1169532079L, -1296857663L, 1287908428L, -1578904885L, -2058856287L,  83133563L, -1681095633L, -368153180L), max = 322159101L, start = 771932723L,      times = c(1415489352L, 408707613L, 317860139L, 609561345L,      -1481245742L, 251549795L, 1430391743L, -478972105L, -786530327L,      2061567629L, -751781640L, -2048657108L, -1728708698L, -212399544L,      1788897464L, -2004896679L, -1640807912L, 357148136L, 2036261118L,      1104816858L, -819363646L, -2121659877L, -1626171353L, -1840480208L,      2143504532L, 216956293L, NA, 934110982L, -672610216L, 1926460178L,      -452249225L, 1471850454L, 2112908169L, -555217366L, 1167177597L,      1042252565L, 122449273L, 534809348L, -339379134L, 2133006844L,      327452145L, 1821580209L, 617819746L, -223184647L, -18517475L,      -956423759L, -1013058494L, -1056096556L, -1849440515L, 1457630842L,      -1260528474L, -1890279539L, 974301696L, 281784787L, 1772426538L,      -1303118269L, 381960300L, -1494227366L, -859700901L, 396421201L,      -1299033662L, 1560450502L, -1465192358L, -34628077L, -1277264039L,      -848972647L, 683013183L, 1440518152L, 1860291276L, -480210293L,      176416264L, 1921260325L, 1654357808L, 3393832L, -390174915L,      -1695070967L, -669985348L, 1885816698L))
result <- do.call(highfrequency:::nsmaller,testlist)
str(result)