(GOAL COMPLEXITY)
(STARTTERM (FUNCTIONSYMBOLS evalfstart))
(VAR A B C D)
(RULES
  evalfstart(A, B, C, D) -> Com_1(evalfentryin(A, B, C, D))
  evalfentryin(A, B, C, D) -> Com_1(evalfbb4in(1, B, C, D))
  evalfbb4in(A, B, C, D) -> Com_1(evalfbb2in(A, B, 1, D)) [ A - 1 >= 0 /\ B >= A ]
  evalfbb4in(A, B, C, D) -> Com_1(evalfreturnin(A, B, C, D)) [ A - 1 >= 0 /\ A >= B + 1 ]
  evalfbb2in(A, B, C, D) -> Com_1(evalfbb1in(A, B, C, D)) [ C - 1 >= 0 /\ B + C - 2 >= 0 /\ A + C - 2 >= 0 /\ B - 1 >= 0 /\ A + B - 2 >= 0 /\ -A + B >= 0 /\ A - 1 >= 0 /\ D >= C ]
  evalfbb2in(A, B, C, D) -> Com_1(evalfbb3in(A, B, C, D)) [ C - 1 >= 0 /\ B + C - 2 >= 0 /\ A + C - 2 >= 0 /\ B - 1 >= 0 /\ A + B - 2 >= 0 /\ -A + B >= 0 /\ A - 1 >= 0 /\ C >= D + 1 ]
  evalfbb1in(A, B, C, D) -> Com_1(evalfbb2in(A, B, C + 1, D)) [ D - 1 >= 0 /\ C + D - 2 >= 0 /\ -C + D >= 0 /\ B + D - 2 >= 0 /\ A + D - 2 >= 0 /\ C - 1 >= 0 /\ B + C - 2 >= 0 /\ A + C - 2 >= 0 /\ B - 1 >= 0 /\ A + B - 2 >= 0 /\ -A + B >= 0 /\ A - 1 >= 0 ]
  evalfbb3in(A, B, C, D) -> Com_1(evalfbb4in(A + 1, B, C, D)) [ C - D - 1 >= 0 /\ C - 1 >= 0 /\ B + C - 2 >= 0 /\ A + C - 2 >= 0 /\ B - 1 >= 0 /\ A + B - 2 >= 0 /\ -A + B >= 0 /\ A - 1 >= 0 ]
  evalfreturnin(A, B, C, D) -> Com_1(evalfstop(A, B, C, D)) [ A - B - 1 >= 0 /\ A - 1 >= 0 ]
)