/export/starexec/sandbox/solver/bin/starexec_run_default /export/starexec/sandbox/benchmark/theBenchmark.xml /export/starexec/sandbox/output/output_files -------------------------------------------------------------------------------- MAYBE ** BEGIN proof description ** ## Searching for a generalized rewrite rule (a rule whose right-hand side contains a variable that does not occur in the left-hand side)... No generalized rewrite rule found! ## Applying the DP framework... ## 2 initial DP problems to solve. ## First, we try to decompose these problems into smaller problems. ## Round 1 [2 DP problems]: ## DP problem: Dependency pairs = [f^#(_0,s(_1)) -> f^#(d(_0),_1), f^#(_0,0) -> f^#(s(0),_0)] TRS = {f(_0,s(_1)) -> f(d(_0),_1), f(_0,0) -> f(s(0),_0), d(0) -> 0, d(s(_0)) -> s(s(d(_0)))} ## Trying with homeomorphic embeddings... Failed! ## Trying with polynomial interpretations... Failed! ## Trying with lexicographic path orders... Failed! ## Trying with Knuth-Bendix orders... Failed! Don't know whether this DP problem is finite. ## DP problem: Dependency pairs = [d^#(s(_0)) -> d^#(_0)] TRS = {f(_0,s(_1)) -> f(d(_0),_1), f(_0,0) -> f(s(0),_0), d(0) -> 0, d(s(_0)) -> s(s(d(_0)))} ## Trying with homeomorphic embeddings... Success! This DP problem is finite. ## A DP problem could not be proved finite. ## Now, we try to prove that this problem is infinite. ## Could not solve the following DP problems: 1: Dependency pairs = [f^#(_0,s(_1)) -> f^#(d(_0),_1), f^#(_0,0) -> f^#(s(0),_0)] TRS = {f(_0,s(_1)) -> f(d(_0),_1), f(_0,0) -> f(s(0),_0), d(0) -> 0, d(s(_0)) -> s(s(d(_0)))} Hence, could not prove (non)termination of the TRS under analysis. Proof run on Linux version 3.10.0-1160.25.1.el7.x86_64 for amd64 using Java version 1.8.0_292 ** END proof description ** Total number of generated unfolded rules = 363