The input format is tptp. There is a built-in Skolemizer in OSHL-S
but some times it is not very efficient. You might want to try to
transform the input file into the clausal form using other tools.
java -jar oshls.jar %s [timeout=%d] [typeinference=true|false]
%s is the input file
%d is measured in milliseconds
Standard error: status and
statistics.
Standard output: verbose status and statistics.