odd output

fngen.c

#include <stdio.h>
#include <math.h>

int main(void) {
  long double x = 0.0;
  long double phi = 0.61803398874989484820458683436563811772030917980576286213544862L;
  long double t = 1.0;

  for (;;) {
    int n = 0;
    do {
      x = fmodl(x + phi, 1.0);
      n++;
    } while (x > t);
    printf("%d\n", n);
    t /= 1.1;
  }
  return 0;
}