import java.io.*;
import java.util.*;
import java.util.stream.*;

public class Main {
    static long[] weights;
    static long[] values;
    static ArrayList<HashMap<Long, Long>> dp;
    public static void main(String[] args) throws Exception {
        Scanner sc = new Scanner();
        int t = sc.nextInt();
        StringBuilder sb = new StringBuilder();
        while (t-- > 0) {
            int n = sc.nextInt();
            long w = sc.nextLong();
            weights = new long[n];
            values = new long[n];
            dp = new ArrayList<>();
            for (int i = 0; i < n; i++) {
                weights[i] = sc.nextLong();
                dp.add(new HashMap<>());
            }
            values[0] = 1;
            if (n > 1) {
                values[1] = 2;
            }
            for (int i = 2; i < n; i++) {
                values[i] = values[i - 1] + values[i - 2];
            }
            sb.append(dfw(n - 1, w)).append("\n");
        }
        System.out.print(sb);
    }
    
    static long dfw(int idx, long w) {
        if (w < 0) {
            return Long.MIN_VALUE;
        }
        if (idx < 0) {
            return 0;
        }
        if (!dp.get(idx).containsKey(w)) {
            dp.get(idx).put(w, Math.max(dfw(idx - 1, w), dfw(idx - 1, w - weights[idx]) + values[idx]));
        }
        return dp.get(idx).get(w);
    }
    
}
class Utilities {
    static String arrayToLineString(int[] arr) {
        return String.join("\n", Arrays.stream(arr).mapToObj(String::valueOf).toArray(String[]::new));
    }
}
class Scanner {
    BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
    StringTokenizer st = new StringTokenizer("");
    StringBuilder sb = new StringBuilder();
    
    public Scanner() throws Exception {
        
    }
    
    public int nextInt() throws Exception {
        return Integer.parseInt(next());
    }
    
    public long nextLong() throws Exception {
        return Long.parseLong(next());
    }
    
    public double nextDouble() throws Exception {
        return Double.parseDouble(next());
    }
    
    public int[] nextIntArray() throws Exception {
        return Stream.of(br.readLine().split(" ")).mapToInt(Integer::parseInt).toArray();
    }
    
    public String next() throws Exception {
        while (!st.hasMoreTokens()) {
            st = new StringTokenizer(br.readLine());
        }
        return st.nextToken();
    }
    
}