I'm not using -resid. Here's an example of an exact command I run:
3dttest++ -setA 'Positive>Word' \
sub0 '/Volumes/NLine_Peter/Sizes/s2003/rh.std.141.TaskContrast.4fwhm.niml.dset[1]' \
sub1 '/Volumes/NLine_Peter/Sizes/s2004/rh.std.141.TaskContrast.4fwhm.niml.dset[1]' \
sub2 '/Volumes/NLine_Peter/Sizes/s2005/rh.std.141.TaskContrast.4fwhm.niml.dset[1]' \
sub3 '/Volumes/NLine_Peter/Sizes/s2006/rh.std.141.TaskContrast.4fwhm.niml.dset[1]' \
sub4 '/Volumes/NLine_Peter/Sizes/s2007/rh.std.141.TaskContrast.4fwhm.niml.dset[1]' \
sub5 '/Volumes/NLine_Peter/Sizes/s2011/rh.std.141.TaskContrast.4fwhm.niml.dset[1]' \
sub6 '/Volumes/NLine_Peter/Sizes/s2012/rh.std.141.TaskContrast.4fwhm.niml.dset[1]' \
sub7 '/Volumes/NLine_Peter/Sizes/s2014/rh.std.141.TaskContrast.4fwhm.niml.dset[1]' \
sub8 '/Volumes/NLine_Peter/Sizes/s2015/rh.std.141.TaskContrast.4fwhm.niml.dset[1]' \
sub9 '/Volumes/NLine_Peter/Sizes/s2016/rh.std.141.TaskContrast.4fwhm.niml.dset[1]' \
sub10 '/Volumes/NLine_Peter/Sizes/s2017/rh.std.141.TaskContrast.4fwhm.niml.dset[1]' \
sub11 '/Volumes/NLine_Peter/Sizes/s2018/rh.std.141.TaskContrast.4fwhm.niml.dset[1]' \
sub12 '/Volumes/NLine_Peter/Sizes/s2019/rh.std.141.TaskContrast.4fwhm.niml.dset[1]' \
sub13 '/Volumes/NLine_Peter/Sizes/s2021/rh.std.141.TaskContrast.4fwhm.niml.dset[1]' \
sub14 '/Volumes/NLine_Peter/Sizes/s2022/rh.std.141.TaskContrast.4fwhm.niml.dset[1]' \
sub15 '/Volumes/NLine_Peter/Sizes/s2023/rh.std.141.TaskContrast.4fwhm.niml.dset[1]' \
sub16 '/Volumes/NLine_Peter/Sizes/s2024/rh.std.141.TaskContrast.4fwhm.niml.dset[1]' \
sub17 '/Volumes/NLine_Peter/Sizes/s2027/rh.std.141.TaskContrast.4fwhm.niml.dset[1]' \
-prefix rh.std.141.temp1.niml.dset -Clustsim
and the output:
++ 3dttest++: AFNI version=AFNI_16.2.02 (Jul 19 2016) [64-bit]
++ Authored by: Zhark++
++ Number of -clustsim threads set to 16
++ no mask ==> processing all 198812 voxels
++ loading input datasets
++ t-testing:0123456789.0123456789.0123456789.0123456789.0123456789.!
++ ---------- End of analyses -- freeing workspaces ----------
++ Creating FDR curves in output dataset
++ Smallest FDR q [1 Positive>Wor_Zscr] = 0.00181232
+ Added 1 FDR curve to dataset
++ Output dataset ./rh.std.141.temp1.niml.dset
++ Output dataset ./TT.z9WstU9Zw8p.resid.nii
++ ================ Starting -clustsim calculations ================
+ ===== temporary files will have prefix TT.z9WstU9Zw8p =====
+ ===== running 16 -randomsign jobs (626 iterations per job) =====
+ #0 jobs command:
3dttest++ -DAFNI_AUTOMATIC_FDR=NO -DAFNI_DONT_LOGFILE=YES -randomsign 626 -nomeans -toz -setA TT.z9WstU9Zw8p.resid.nii -prefix TT.z9WstU9Zw8p.000.nii
++ 3dttest++: AFNI version=AFNI_16.2.02 (Jul 19 2016) [64-bit]
++ Authored by: Zhark++
** nifti_header_version: bad sizeof_hdr = 1094459427
** nifti_image_read: bad nifti im header version -1
*+ WARNING: -setA: group label 'TT.z9WstU9Zw8p.resid.nii' looks like a dataset name but isn't -- is this OK ?!?
** FATAL ERROR: Option -setA (long form): need at least 2 datasets
** Program compile date = Jul 19 2016
+ ===== jobs have finished (10.08 s elapsed) =====
+ ===== starting 3dClustSim =====
3dClustSim -DAFNI_DONT_LOGFILE=YES -inset TT.z9WstU9Zw8p.???.nii -prefix TT.z9WstU9Zw8p.CSim -LOTS -both -cmd TT.z9WstU9Zw8p.CSim.cmd
++ 3dClustSim: AFNI version=AFNI_16.2.02 (Jul 19 2016) [64-bit]
++ Authored by: RW Cox and BD Ward
** ERROR: -inset 'TT.z9WstU9Zw8p.???.nii': failure to open dataset
** FATAL ERROR: no valid datasets opened after -inset
** Program compile date = Jul 19 2016
** FATAL ERROR: ===== 3dClustSim command failed (( =====
** Program compile date = Jul 19 2016