Does the if condition get executed?

Problem: http://ift.tt/1YqTcYO

Solution: http://ift.tt/2deTMbH

Input: ["s","sssll"]

When i=1 in nested loop and left = "s", right = "ssll" the below if condition is satisfied.

if(dict.find(left) != dict.end() && isPalindrome(right) && dict[left] != i)

The below statement in if part should get executed

ans.push_back({i, dict[left]});

The if condition is satisfied but still [0,1] is not printed in answer.

I understand that string formed by concatenating words[0]+words[1]="ssssll" is not a palindrome;so it should not be the part of answer. But I don't understand why doesn't the if part get executed when the specified condition is met.

What have I misunderstood?