Fibonacci01_true-unreach-call.c

loading
details
attribute value
description
owner Johannes Waldmann
uploaded 2017-08-17 03:45:15.0
disk size 640 Bytes
downloadable true
type
attribute value
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.
owning community none
loading contents
extern void __VERIFIER_error() __attribute__ ((__noreturn__));

/*
 * Recursive computation of fibonacci numbers.
 * 
 * Author: Matthias Heizmann
 * Date: 2013-07-13
 * 
 */

extern int __VERIFIER_nondet_int(void);


int fibonacci(int n) {
    if (n < 1) {
        return 0;
    } else if (n == 1) {
        return 1;
    } else {
        return fibonacci(n-1) + fibonacci(n-2);
    }
}


int main() {
    int x = __VERIFIER_nondet_int();
    if (x > 46 || x == -2147483648) {
        return 0;
    }
    int result = fibonacci(x);
    if (result >= x - 1) {
        return 0;
    } else {
        ERROR: __VERIFIER_error();
    }
}
    

popout

content may be truncated. 'popout' for larger text window.

actions get anonymous link download benchmark