// verifast_options{disable_overflow_check target:ILP32} extern void abort(void); //@ requires true; //@ ensures true; void reach_error() //@ requires false; //@ ensures true; {}extern short __VERIFIER_nondet_short(void); //@ requires true; //@ ensures true; void assume_abort_if_not(int cond) //@ requires true; //@ ensures (cond != 0); { if(!cond) {abort();} } void __VERIFIER_assert(int cond) //@ requires (1 <= cond); //@ ensures (1 <= cond); { if (!(cond)) { ERROR: {reach_error();} } return; } int main() //@ requires module(ps6_ll_valuebound5__verifast_instrumented, true); //@ ensures junk(); { //@ open_module(); short k; long long y, x, c; k = __VERIFIER_nondet_short(); assume_abort_if_not(k>=0 && k<=5); assume_abort_if_not(k <= 256); y = 0; x = 0; c = 0; while (1) //@ invariant ((((((((((k <= 5) && ((k == 3) || (3 < k))) && (276 == x)) && (y == 3)) && (c == 3)) || (((((k <= 5) && ((1 < k) || (k == 1))) && (y == 1)) && (x == 1)) && (c == 1))) || (((((x == 33) && (y == 2)) && (k <= 5)) && ((k == 2) || (2 < k))) && (c == 2))) || (((((x == 0) && (k <= 5)) && (0 <= k)) && (c == 0)) && (y == 0))) || (((((k <= 5) && (0 <= k)) && ((y * y) == (k * y))) && ((((2 * (((((y * y) * y) * y) * y) * y)) + (6 * ((((y * y) * y) * y) * y))) + (5 * (((y * y) * y) * y))) == ((x * 12) + (y * y)))) && (5 <= c))) || (((((k <= 5) && (4 <= k)) && (y == 4)) && (c == 4)) && (1300 == x))); { __VERIFIER_assert(-2*y*y*y*y*y*y - 6 * y*y*y*y*y - 5 * y*y*y*y + y*y + 12*x == 0); if (!(c < k)) break; c = c + 1; y = y + 1; x = y * y * y * y * y + x; } __VERIFIER_assert(-2*y*y*y*y*y*y - 6 * y*y*y*y*y - 5 * y*y*y*y + y*y + 12*x == 0); __VERIFIER_assert(k*y == y*y); return 0; }