/export/starexec/sandbox2/solver/bin/starexec_run_ttt2-1.17+nonreach /export/starexec/sandbox2/benchmark/theBenchmark.xml /export/starexec/sandbox2/output/output_files


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MAYBE

Problem:
 f(x,a(b(y))) -> f(a(b(x)),y)
 f(x,b(c(y))) -> f(b(c(x)),y)
 f(x,c(a(y))) -> f(c(a(x)),y)
 f(a(x),y) -> f(x,a(y))
 f(b(x),y) -> f(x,b(y))
 f(c(x),y) -> f(x,c(y))

Proof:
 Open