(GOAL COMPLEXITY) (STARTTERM (FUNCTIONSYMBOLS f0)) (VAR A B C) (RULES f1(A, B, C) -> Com_1(f1(A - C, B - 2*C, C - 1)) [ A >= B ] f1(A, B, C) -> Com_1(f1(A + 1, B + A + 1, C)) [ A >= B ] f0(A, B, C) -> Com_1(f1(A, B, C)) )