#include <stdlib.h>

extern int __VERIFIER_nondet_int(void);
extern char __VERIFIER_nondet_char(void);

/*-
 * Copyright (c) 1990 The Regents of the University of California.
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 * 3. Neither the name of the University nor the names of its contributors
 *    may be used to endorse or promote products derived from this software
 *    without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 */
char *
cstpncpy(char *dst, const char *src, size_t n)
{
	if (n != 0) {
		char *d = dst;
		const char *s = src;

		dst = &dst[n];
		do {
			if ((*d++ = *s++) == 0) {
				dst = d - 1;
				/* NUL pad the remaining n-1 bytes */
				while (--n != 0)
					*d++ = 0;
				break;
			}
		} while (--n != 0);
	}
	return (dst);
}

int main() {
  int length = __VERIFIER_nondet_int();
  int n = __VERIFIER_nondet_int();
  if (length < 1) {
      length = 1;
  }
  if (n < 1) {
      n = 1;
  }
  char* nondetArea = (char*) alloca(n * sizeof(char));
  char* nondetString = (char*) alloca(length * sizeof(char));
	
	for(int i = 0; i < length - 1; i++)
	{
	  nondetString[i] = __VERIFIER_nondet_char();
	}
  
	nondetString[length-1] = '\0';
  cstpncpy(nondetArea, nondetString, n);
  return 0;
}