wf-checks-use-the-original-quantifier.dfy(26,11): Info: For expression {0 <= f(n)}:
   Selected triggers: {f(n)}
   Rejected triggers: {P(f(n))} (more specific than {f(n)})
wf-checks-use-the-original-quantifier.dfy(26,11): Info: For expression {P(f(n))}:
   Selected triggers: {f(n)}
   Rejected triggers: {P(f(n))} (more specific than {f(n)})
wf-checks-use-the-original-quantifier.dfy(27,11): Info: For expression {c != null}:
   Selected triggers:
     {c'.x, c.x}, {c'.x, c in s}, {c.x, c' in s}, {c' in s, c in s}
wf-checks-use-the-original-quantifier.dfy(27,11): Info: For expression {c' != null}:
   Selected triggers:
     {c'.x, c.x}, {c'.x, c in s}, {c.x, c' in s}, {c' in s, c in s}
wf-checks-use-the-original-quantifier.dfy(27,11): Info: For expression {c.x == c'.x}:
   Selected triggers:
     {c'.x, c.x}, {c'.x, c in s}, {c.x, c' in s}, {c' in s, c in s}

Dafny program verifier finished with 4 verified, 0 errors