// verifast_options{disable_overflow_check target:ILP32} extern void __assert_fail (const char *__assertion, const char *__file, unsigned int __line, const char *__function) __attribute__ ((__nothrow__ , __leaf__)) __attribute__ ((__noreturn__)); extern void __assert_perror_fail (int __errnum, const char *__file, unsigned int __line, const char *__function) __attribute__ ((__nothrow__ , __leaf__)) __attribute__ ((__noreturn__)); extern void __assert (const char *__assertion, const char *__file, int __line) __attribute__ ((__nothrow__ , __leaf__)) __attribute__ ((__noreturn__)); extern void abort(void);//@ requires true; //@ ensures true; void reach_error() //@ requires false; //@ ensures true; { ((void) sizeof ((0) ? 1 : 0), __extension__ ({ if (0) ; else __assert_fail ("0", "hh-ex1b.c", 3, __extension__ __PRETTY_FUNCTION__); })); } void __VERIFIER_assert(int cond) //@ requires (cond != 0); //@ ensures (cond != 0); { if(!(cond)) { ERROR: {reach_error();abort();} } } int main() //@ requires module(hh2012_ex1b__verifast_instrumented_modified, true); //@ ensures junk(); { int i = 0; while (i < 100)//@ invariant (i < 101); { int j = 0; while (j < 100)//@ invariant ((i <= 99) && (j <= 100)); { j++; __VERIFIER_assert(j <= 100); } __VERIFIER_assert(j == 100); i++; __VERIFIER_assert(i <= 100); } __VERIFIER_assert(i == 100); return 0; }