//Create Time: 2018-05-05 16:45:20
#include <iostream>
#include <cstdio>
#include <cstring>
#include <string>
#include <cmath>
#include <algorithm>
#include <vector>
#include <cstdlib>
#include <sstream>
#include <fstream>
#include <functional>
#include <list>
#include <deque>
#include <queue>
#include <stack>
#include <map>
#include <set>
#include <bitset>
#include <cctype>
#include <ctime>
#include <utility>
#include <complex>
#include <cassert>
#include <climits>
#include <iterator>
#include <tuple>
using namespace std;
#define snuke(i,x) for (__typeof((x).begin()) i = (x).begin(); i != (x).end(); ++i)
#define rep(i,a,n) for (int i=(a);i<(n);i++)
#define per(i,n,a) for (int i=(n)-1;i>=(a);i--)
// #define OUT(x) std::cout<<(#x)<<":"<<(x)<<std::endl
// #define TST(x) std::cout<<(#x)<<":"<<(x)<<" "
#define OUT(args...) {string _s=#args;replace(_s.begin(),_s.end(),',',' ');stringstream _ss(_s);istream_iterator<string> _it(_ss);OUT_TST("\n",_it,args);}
#define TST(args...) {string _s=#args;replace(_s.begin(),_s.end(),',',' ');stringstream _ss(_s);istream_iterator<string> _it(_ss);OUT_TST("",_it,args);}
#define SZ(v) ((int)(v).size())
#define all(v) (v).begin(), (v).end()
#define unq(x) sort(all(x)),(x).erase(unique(all(x)),(x).end())
#define mem(f,x) memset((f), (x), sizeof(f))
#define clr(f) mem(f,0)
#define x first
#define y second
#define mp make_pair
#define pb push_back
#define mt make_tuple
#define eb emplace_back
#define DEBUG
void OUT_TST(string s,istream_iterator<string> it) {cerr<<s;}
template<typename T, typename... Args> void OUT_TST(string s,istream_iterator<string> it,T a,Args... args){cerr<<*it<<"="<<a<<" ";OUT_TST(s,++it,args...);}
template<class T> void rd(T&ret){ret=0;bool ok=0,u=0;for(;;){int c=getchar();if(c>='0'&&c<='9')ret=(ret<<3)+(ret<<1)+c-'0',ok=1;else if(c=='-')u=1;else if(ok){if(u)ret*=-1;return;}}}
long long powmod(long long p,long long n,long long mod){long long ret=1;for(;n;n>>=1){if(n&1)ret=ret*p%mod;p=p*p%mod;}return ret;}
template <class T> bool chmin(T& a, const T &b) {return b < a? a = b, 1: 0;}
template <class T> bool chmax(T& a, const T &b) {return b > a? a = b, 1: 0;}
int gcd(int a,int b){return b?gcd(b,a%b):a;}
typedef long long ll;
typedef pair<int, int> pii;
typedef vector<int> vi;
typedef vector<pii > vii;
typedef tuple<int,int,int> tp;
/****head****/
const ll mod=(ll)1e9+7;
ll an[222],bn[222],cn[222],stk[222];
int n,top;
ll K;
bool ok(ll x,int t,ll op){
    rep(i,0,t){
        if(op&1){
            if(x<1)return 0;
            x-=1;
        }
        x>>=1;
        op>>=1;
    }
    return 1;
}
int count(ll a,ll b){
    if(a==-1)return 0;
    while(a!=b){
        a>>=1;
        b>>=1;
    }
    return __builtin_popcount(a)+1;
}
int main(){
    cin>>n>>K;
    rep(i,0,n)cin>>an[i];
    sort(an,an+n);
    ll ans=0;
    rep(t,0,K+1){
        ll p2=1ll<<t;
        if(p2>an[n-1]){
            ++ans;break;
        }
        top=0;
        rep(i,0,n){
            bn[i]=an[i]/p2;
            cn[i]=an[i]%p2;
            stk[top++]=cn[i];
        }
        stk[top++]=-1;
        sort(stk,stk+top);
        top=unique(stk,stk+top)-stk;
        bool add1=0;
        if(stk[top-1]!=p2-1){
            stk[top++]=p2-1;
            add1=1;
        }
        bool fg=0,minus1=0;
        // rep(i,0,top)TST(stk[i]);puts("");
        rep(i,0,top-1){
            if(i==top-2 && minus1 && add1)continue;
            // OUT(t,stk[i]+1);
            if(!ok(an[0],t,stk[i]+1))continue;
            // OUT(t,stk[i]+1);
            ll res=K-t-count(stk[i],stk[i+1]);
            if(res<0)continue;
            ll mi=(an[0]-stk[i]-1)/p2, mx=(an[n-1]-stk[i]-1)/p2;
            if(i==0 && mi!=0)minus1=1;
            if(mi==0){
                ++ans;
                if(mx==0) fg=1;
            } else {
                chmin(res,mi);
                if(mx==mi+1 && (mi&1))chmin(res,mi/2);
                if(mx==mi)chmin(res,mi-mi/2-1);
                ans+=(res+1ll)%mod;
            }
            // OUT(t,stk[i]+1,ans);
        }
        if(fg)break;
    }
    ans%=mod;
    cout<<ans<<endl;
    return 0;
}


Measured memory_bytes: 256