* using log directory ‘/home/hornik/tmp/CRAN_special_valgrind/FLSSS.Rcheck’
* using R Under development (unstable) (2025-06-14 r88315)
* using platform: x86_64-pc-linux-gnu
* R was compiled by
    gcc-14 (Debian 14.2.0-19) 14.2.0
    GNU Fortran (Debian 14.2.0-19) 14.2.0
* running under: Debian GNU/Linux 13 (trixie)
* using session charset: UTF-8
* using option ‘--use-valgrind’
* checking for file ‘FLSSS/DESCRIPTION’ ... OK
* checking extension type ... Package
* this is package ‘FLSSS’ version ‘9.2.7’
* package encoding: UTF-8
* checking package namespace information ... OK
* checking package dependencies ... OK
* checking if this is a source package ... OK
* checking if there is a namespace ... OK
* checking for executable files ... OK
* checking for hidden files and directories ... OK
* checking for portable file names ... OK
* checking for sufficient/correct file permissions ... OK
* checking serialization versions ... OK
* checking whether package ‘FLSSS’ can be installed ... [171s/174s] OK
* used C++ compiler: ‘g++-14 (Debian 14.2.0-19) 14.2.0’
* checking package directory ... OK
* checking for future file timestamps ... OK
* checking DESCRIPTION meta-information ... OK
* checking top-level files ... OK
* checking for left-over files ... OK
* checking index information ... OK
* checking package subdirectories ... OK
* checking code files for non-ASCII characters ... OK
* checking R files for syntax errors ... OK
* checking whether the package can be loaded ... [0s/0s] OK
* checking whether the package can be loaded with stated dependencies ... [0s/0s] OK
* checking whether the package can be unloaded cleanly ... [0s/0s] OK
* checking whether the namespace can be loaded with stated dependencies ... [0s/0s] OK
* checking whether the namespace can be unloaded cleanly ... [0s/0s] OK
* checking loading without being on the library search path ... [0s/0s] OK
* checking use of S3 registration ... OK
* checking dependencies in R code ... OK
* checking S3 generic/method consistency ... OK
* checking replacement functions ... OK
* checking foreign function calls ... OK
* checking R code for possible problems ... [6s/6s] OK
* checking Rd files ... [0s/0s] OK
* checking Rd metadata ... OK
* checking Rd line widths ... OK
* checking Rd cross-references ... OK
* checking for missing documentation entries ... OK
* checking for code/documentation mismatches ... OK
* checking Rd \usage sections ... OK
* checking Rd contents ... OK
* checking for unstated dependencies in examples ... OK
* checking line endings in shell scripts ... OK
* checking line endings in C/C++/Fortran sources/headers ... OK
* checking line endings in Makefiles ... OK
* checking compilation flags in Makevars ... OK
* checking for GNU extensions in Makefiles ... OK
* checking for portable use of $(BLAS_LIBS) and $(LAPACK_LIBS) ... OK
* checking use of PKG_*FLAGS in Makefiles ... OK
* checking use of SHLIB_OPENMP_*FLAGS in Makefiles ... OK
* checking pragmas in C/C++ headers and code ... OK
* checking compilation flags used ... OK
* checking compiled code ... OK
* checking examples ... [0m/30m] ERROR
Running examples in ‘FLSSS-Ex.R’ failed
The error most likely occurred in:

> base::assign(".ptime", proc.time(), pos = "CheckExEnv")
> ### Name: arbFLSSS
> ### Title: Multidimensional exact subset sum in arbitrary precision and
> ###   magnitude
> ### Aliases: arbFLSSS
> 
> ### ** Examples
> 
> set.seed(1)
> N = 200L # Superset size.
> len = 20L # Subset size.
> V = sapply(1:N, function(i) # Generate a set where every "number" has at most
+   # 100 digits.
+ {
+   a = 0:9
+   left = sample(a, size = sample(50, 1), replace = TRUE)
+   right = sample(a, size = sample(50, 1), replace = TRUE)
+   x = paste0(paste0(left, collapse = ""), ".", paste0(right, collapse = ""))
+   if (runif(1) < 0.5) x = paste0("-", x) # Randomly add a negative sign.
+   x
+ })
> str(V)
 chr [1:200] "-6016.1204495968448844198032599533986587867596295" ...
> 
> 
> sol = sample(N, len) # Make a solution.
> target = FLSSS::addNumStrings(V[sol]) # An unexposed helper function.
> 
> 
> # Uncomment the following block for testing the code since CRAN check uses 
> # Valgrind, which takes over 5s to run.
> # system.time({
> #   rst = FLSSS::arbFLSSS(
> #     len = len, V = Vstr, target, givenKsumTable = NULL, tlimit = 60,
> #     solutionNeed = 1e9, maxCore = 2, ksumK = 4, verbose = TRUE)
> # })
> # 
> # 
> # # Validation.
> # all(unlist(lapply(rst, function(x)
> # {
> #   apply(Vstr, 2, function(u) FLSSS:::addNumStrings(u[x]))
> # })) == targetStr)
> 
> 
> 
> # ==============================================================================
> # Mine in a multidimensional set.
> # ==============================================================================
> set.seed(2)
> d = 4L # Set dimension.
> N = 50L # Set size.
> len = 10L # Subset size.
> roundN = 4L # For rounding the numeric values before conversion to strings.
> 
> 
> V = matrix(round(runif(N * d, -1, 1), roundN), nrow = N) # Make superset.
> optionSave = options()
> options(scipen = 999) # Ensure numeric-to-string conversion does not
> # produce strings like "2e-3".
> Vstr = matrix(as.character(V), nrow = N)
> 
> 
> sol = sample(N, len) # Make a solution.
> target = round(colSums(V[sol, ]), roundN) # Target subset sum.
> targetStr = as.character(target)
> 
> 
> system.time({
+   rst = FLSSS::arbFLSSS(
+     len = len, V = Vstr, target, givenKsumTable = NULL, tlimit = 60,
+     solutionNeed = 1e9, maxCore = 2, ksumK = 4, verbose = TRUE)
+ })
Transform string input to bit streams and create flsss objects to mine..

==3827508== 
==3827508== Process terminating with default action of signal 15 (SIGTERM)
==3827508==    at 0x1FF7B068: CharlieThreadPool::parFor(unsigned long, unsigned long, std::function<bool (unsigned long, unsigned long)>, unsigned long, std::function<bool (unsigned long)>, std::function<bool (unsigned long)>) (/home/hornik/tmp/CRAN_special_valgrind/FLSSS.Rcheck/00_pkg_src/FLSSS/src/arbitraryDimFLSSS/charlieThreadPool.hpp:136)
==3827508==    by 0x1FFA36A2: stringMatTo64bitIntMat(Rcpp::Matrix<16, Rcpp::PreserveStorage>&, Rcpp::Vector<16, Rcpp::PreserveStorage>&, int, CharlieThreadPool&, std::vector<unsigned long, std::allocator<unsigned long> >&, std::vector<unsigned long, std::allocator<unsigned long> >&, std::vector<unsigned long, std::allocator<unsigned long> >&, std::vector<int, std::allocator<int> >&, std::vector<int, std::allocator<int> >&, int&, bool) (/home/hornik/tmp/CRAN_special_valgrind/FLSSS.Rcheck/00_pkg_src/FLSSS/src/arbitraryDimFLSSS/intString2intArray.hpp:394)
==3827508==    by 0x1FFA7D15: bool makeMflsssObjs<signed char>(int, Rcpp::Matrix<16, Rcpp::PreserveStorage>, Rcpp::Vector<16, Rcpp::PreserveStorage>, int, int, CharlieThreadPool&, std::vector<mflsssOBJ<signed char>, std::allocator<mflsssOBJ<signed char> > >&, std::vector<std::vector<signed char, std::allocator<signed char> >, std::allocator<std::vector<signed char, std::allocator<signed char> > > >&, Shared<signed char>&, double, std::vector<int, std::allocator<int> >&, TriM&, KsumLookUpTable<signed char>&, bool) (/home/hornik/tmp/CRAN_special_valgrind/FLSSS.Rcheck/00_pkg_src/FLSSS/src/arbitraryDimFLSSS/mflsssDecomp.hpp:43)
==3827508==    by 0x1FFA8B2B: Rcpp::Vector<19, Rcpp::PreserveStorage> mflsssArb<signed char>(int, Rcpp::Matrix<16, Rcpp::PreserveStorage>, Rcpp::Vector<16, Rcpp::PreserveStorage>, int, CharlieThreadPool&, int, double, Rcpp::Vector<19, Rcpp::PreserveStorage>, int, int, bool) (/home/hornik/tmp/CRAN_special_valgrind/FLSSS.Rcheck/00_pkg_src/FLSSS/src/arbitraryDimFLSSS/mflsssDecomp.hpp:253)
==3827508==    by 0x1FF7961A: arbFLSSS(int, Rcpp::Matrix<16, Rcpp::PreserveStorage>, Rcpp::Vector<16, Rcpp::PreserveStorage>, SEXPREC*, int, int, double, int, int, int, bool) (/home/hornik/tmp/CRAN_special_valgrind/FLSSS.Rcheck/00_pkg_src/FLSSS/src/mflsssArb.cpp:32)
==3827508==    by 0x1FF1494D: _FLSSS_arbFLSSS (/home/hornik/tmp/CRAN_special_valgrind/FLSSS.Rcheck/00_pkg_src/FLSSS/src/RcppExports.cpp:329)
==3827508==    by 0x495D863: R_doDotCall (/home/hornik/src/R/src/main/dotcode.c:801)
==3827508==    by 0x49A2702: bcEval_loop (/home/hornik/src/R/src/main/eval.c:8668)
==3827508==    by 0x49AA6B5: bcEval (/home/hornik/src/R/src/main/eval.c:7501)
==3827508==    by 0x49AA6B5: bcEval (/home/hornik/src/R/src/main/eval.c:7486)
==3827508==    by 0x49AAA2A: Rf_eval (/home/hornik/src/R/src/main/eval.c:1167)
==3827508==    by 0x49ACB2D: R_execClosure (/home/hornik/src/R/src/main/eval.c:2393)
==3827508==    by 0x49AD88C: applyClosure_core (/home/hornik/src/R/src/main/eval.c:2306)
==3827508== 
==3827508== HEAP SUMMARY:
==3827508==     in use at exit: 59,912,766 bytes in 12,890 blocks
==3827508==   total heap usage: 35,010,407 allocs, 34,997,517 frees, 320,854,137 bytes allocated
==3827508== 
Examples with CPU (user + system) or elapsed time > 5s
         user system elapsed
FLSSS 277.298 11.645 289.029
* checking PDF version of manual ... [3s/3s] OK
* checking HTML version of manual ... [1s/1s] OK
* checking for non-standard things in the check directory ... OK
* checking for detritus in the temp directory ... OK
* DONE
Status: 1 ERROR