#pragma optimize("Ofast")
#pragma target("avx2")
#include<bits/stdc++.h>
using namespace std;
using lint = long long;
#define rep(i,a,b) for(int i=(a);i<(b);++i)
#define endl '\n'

int main(){
    cin.tie(0)->sync_with_stdio(0);
    int t;
    cin>>t;
    while(t--){
        lint n,w;
        cin>>n>>w;
        vector<lint>a(n),b(n+1);
        rep(i,0,n)cin>>a[i];
        rep(i,0,n)b[i+1]=b[i]+a[i];
        vector<lint>f(n);
        f[0]=1;
        if(n>=2)f[1]=2;
        rep(i,2,n)f[i]=f[i-1]+f[i-2];
        map<lint,lint>dp;
        lint ans=0;
        dp[w]=0;
        for(lint i=n-1;i>=0;i--){
            map<lint,lint>dp1;
            for(auto [e,c]:dp){
                if(i!=0&&e-a[i]-a[i-1]>=0){
                    dp1[e-a[i]]=max(dp1[e-a[i]],c+f[i]);
                    ans=max(ans,c+f[i]);
                }else{
                    bool ok=0;
                    if(e-a[i]>=0){
                        ok=1;
                        ans=max(ans,c+f[i]);
                        dp1[e-a[i]]=max(dp1[e-a[i]],c+f[i]);
                    }
                    dp1[e]=max(dp1[e],c);
                }
            }
            swap(dp,dp1);
        }
        cout<<ans<<endl;
    }
}