/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:
 strict:
  f(a(),x) -> f(x,f(b(),x))
 weak:
  f(f(x,y),z) -> f(x,f(y,z))
  f(x,f(y,z)) -> f(f(x,y),z)

Proof:
 Open