svcomp_openbsd_cstrcmp_alloca.c

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description
owner Johannes Waldmann
uploaded 2017-08-17 03:45:15.0
disk size 799 Bytes
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name no_type
processor id 1
description this is the default benchmark type for rejected benchmarks and benchmarks that are not associated with a type.
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/*
 * Date: 17.12.2013
 * Author: Thomas Ströder
 */
#include <stdlib.h>

extern int __VERIFIER_nondet_int(void);

/*
 * Compare strings.
 */
int
cstrcmp(const char *s1, const char *s2)
{
	while (*s1 == *s2++)
		if (*s1++ == 0)
			return (0);
	return (*(unsigned char *)s1 - *(unsigned char *)--s2);
}

int main() {
    int length1 = __VERIFIER_nondet_int();
    int length2 = __VERIFIER_nondet_int();
    if (length1 < 1) {
        length1 = 1;
    }
    if (length2 < 1) {
        length2 = 1;
    }
    char* nondetString1 = (char*) alloca(length1 * sizeof(char));
    char* nondetString2 = (char*) alloca(length2 * sizeof(char));
    nondetString1[length1-1] = '\0';
    nondetString2[length2-1] = '\0';
    return cstrcmp(nondetString1,nondetString2);
}


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