/export/starexec/sandbox/solver/bin/starexec_run_ttt2-1.17+nonreach /export/starexec/sandbox/benchmark/theBenchmark.xml /export/starexec/sandbox/output/output_files


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MAYBE

Problem:
 f(tt(),x) -> f(isDouble(x),s(s(x)))
 isDouble(s(s(x))) -> isDouble(x)
 isDouble(0()) -> tt()

Proof:
 Open