Logically dead code

The indicated dead code may have performed some action; that action will never occur. Code can never be reached because of a logical contradiction
/bench/dhandle/bench_dhandle.c:554: DEADCODE 175777 Condition "n > 1", taking true branch. Now the value of "n" is at least 2.
/bench/dhandle/bench_dhandle.c:555: DEADCODE 175777 Assigning: "i" = "n - 1".
/bench/dhandle/bench_dhandle.c:555: DEADCODE 175777 At condition "i < 0", the value of "i" must be at least 1.
/bench/dhandle/bench_dhandle.c:555: DEADCODE 175777 The condition "i < 0" cannot be true.
/bench/dhandle/bench_dhandle.c:556: DEADCODE 175777 Execution cannot reach this statement: "r = (int)__wt_random(rnd);".