// verifast_options{disable_overflow_check target:ILP32} // This file is part of the SV-Benchmarks collection of verification tasks: // https://github.com/sosy-lab/sv-benchmarks // // SPDX-FileCopyrightText: 2019 Dirk Beyer and Matthias Dangl // // SPDX-License-Identifier: Apache-2.0 extern void abort(void); //@ requires true; //@ ensures true; void reach_error() //@ requires false; //@ ensures true; {}extern unsigned int __VERIFIER_nondet_uint(void); void __VERIFIER_assert(int cond) //@ requires (cond != 0); //@ ensures (cond != 0); { if (!(cond)) { ERROR: {reach_error();abort();} } return; } int main(void) //@ requires module(const__verifast_instrumented, true); //@ ensures junk(); { //@ open_module(); unsigned int s = 0; while (__VERIFIER_nondet_uint()) //@ invariant (s == 0); { if (s != 0) { ++s; } if (__VERIFIER_nondet_uint()) //@ requires true; //@ ensures true; { __VERIFIER_assert(s == 0); } } return 0; }