从python脚本执行golang程序时出错

<>我正在编程C++和GoLang之间的性能比较，以获得数据来进行统计分析，并且我创建了一个Python脚本来获取所有数据并自己执行这两个程序。用C++我没有问题，执行正常，但在GO中我得到这个错误：

panic: runtime error: index out of range

goroutine 1 [running]:
runtime.panic(0x44d600, 0x4b9897)
    /usr/lib/go/src/pkg/runtime/panic.c:266 +0xb6
main.merge(0xc210047000, 0x9, 0x10, 0x8, 0x8, ...)
    /windows/DATA/FIB/PE/B7_PLSpeed/nlogn.go:13 +0x22c
main.mergesort(0xc210047000, 0x9, 0x10, 0x8, 0x9)
    /windows/DATA/FIB/PE/B7_PLSpeed/nlogn.go:43 +0xec
main.mergesort(0xc210047000, 0x9, 0x10, 0x5, 0x9)
    /windows/DATA/FIB/PE/B7_PLSpeed/nlogn.go:42 +0xac
main.mergesort(0xc210047000, 0x9, 0x10, 0x0, 0x9)
    /windows/DATA/FIB/PE/B7_PLSpeed/nlogn.go:42 +0xac
main.main()
    /windows/DATA/FIB/PE/B7_PLSpeed/nlogn.go:54 +0x1c1

如果有人能帮我，我会很高兴的！ 我将把我的Python脚本留在这里，然后转到源代码。你知道吗

Python：

import time
import random
from subprocess import call
from sys import argv


def usage():
    print("Usage: " + argv[0] + " <Binary1> <Binary2> <n elements> <#executions>")

if __name__ == '__main__':
    if len(argv) != 5:
        usage()
    else:
        program1 = argv[1]
        program2 = argv[2]
        n = int(argv[3])
        executions = int(argv[4])

        for x in range(0, executions):
            command = ['']
            # 32-bit range vector(n) random generator
            for y in range(0, n-1):
                command.append(str(random.randint(-2147473648, 2147473647)))

            if(random.choice((True, False))):
                program1, program2 = program2, program1

            # Program1
            command[0] = './' + program1
            pre = time.time()
            call(command)
            post = time.time()
            f = open(program1 + ' - ' + str(n), 'a')
            f.write(str(post-pre) + "ms\n")
            f.close

            # Program2
            command[0] = './' + program2
            pre = time.time()
            call(command)
            post = time.time()
            f = open(program2 + ' - ' + str(n), 'a')
            f.write(str(post-pre) + "ms\n")
            f.close

开始：

package main

import "strconv"
import "os"

func merge(v []int, e int, m int, d int) {
    size := d-e+1
    B := make([]int, size)
    i := e
    j := m + 1
    k := 0
    for i <= m && j <= d {
        if v[i] <= v[j] {
            B[k] = v[i]
            k++
            i++
        } else {
            B[k] = v[j]
            k++
            j++
        }
    }
    for i <= m {
        B[k] = v[i]
        k++
        i++
    }
    for j <= d {
        B[k] = v[j]
        k++
        j++
    }
    for k := 0; k <= d-e; k++ {
        v[e+k] = B[k]
    }
}

func mergesort(v []int, e int, d int) {
    if e < d {
        m := (e+d)/2
        mergesort(v, e, m)
        mergesort(v, m+1, d)
        merge(v, e, m, d)
    }
}

func main() {
    v := make([]int, 0)
    args := os.Args
    for i := 1; i < len(args); i++ {
        f,_ := strconv.Atoi(os.Args[i])
        v = append(v, f)
    }
    mergesort(v, 0, len(args) - 1)
}