public final boolean synpred2_ANTLRv3() {
        state.backtracking++;
        int start = input.mark();
        try {
            synpred2_ANTLRv3_fragment(); // can never throw exception
        } catch (RecognitionException re) {
            System.err.println("impossible: "+re);
        }
        boolean success = !state.failed;
        input.rewind(start);
        state.backtracking--;
        state.failed=false;
        return success;
    }