// verifast_options{disable_overflow_check target:ILP32} extern void abort(void);//@ requires true; //@ ensures true; extern void __assert_fail(const char *, const char *, unsigned int, const char *) __attribute__ ((__nothrow__ , __leaf__)) __attribute__ ((__noreturn__)); void reach_error() //@ requires false; //@ ensures true; { __assert_fail("0", "simple_2-1.c", 3, "reach_error"); } extern unsigned int __VERIFIER_nondet_uint(void);//@ requires true; //@ ensures true; void __VERIFIER_assert(int cond) //@ requires (cond != 0); //@ ensures (cond != 0); { if (!(cond)) { ERROR: {reach_error();abort();} } return; } int main(void) //@ requires module(simple_2_1__verifast_instrumented_modified, true); //@ ensures junk(); { unsigned int x = __VERIFIER_nondet_uint(); while (x < 0x0fffffff)//@ invariant true; { x++; } __VERIFIER_assert(x >= 0x0fffffff); }