extern void __VERIFIER_error() __attribute__ ((__noreturn__)); extern char __VERIFIER_nondet_char(void); extern unsigned int __VERIFIER_nondet_uint(void); void __VERIFIER_assert(int cond) { if (!(cond)) { ERROR: __VERIFIER_error(); } return; } /* Generated by CIL v. 1.3.7 */ /* print_CIL_Input is true */ unsigned int base2flt(unsigned int m , int e ) { unsigned int res ; unsigned int __retres4 ; { if (! m) { __retres4 = 0U; goto return_label; } else { } if (m < 1U << 24U) { { while (1) { while_0_continue: /* CIL Label */ ; if (e <= -128) { __retres4 = 0U; goto return_label; } else { } e = e - 1; m = m << 1U; if (m < 1U << 24U) { } else { goto while_0_break; } } while_0_break: /* CIL Label */ ; } } else { { while (1) { while_1_continue: /* CIL Label */ ; if (m >= 1U << 25U) { } else { goto while_1_break; } if (e >= 127) { __retres4 = 4294967295U; goto return_label; } else { } e = e + 1; m = m >> 1U; } while_1_break: /* CIL Label */ ; } } m = m & ~ (1U << 24U); res = m | (unsigned int )((e + 128) << 24U); __retres4 = res; return_label: /* CIL Label */ return (__retres4); } } unsigned int addflt(unsigned int a , unsigned int b ) { unsigned int res ; unsigned int ma ; unsigned int mb ; unsigned int delta ; int ea ; int eb ; unsigned int tmp ; unsigned int __retres10 ; { if (a < b) { tmp = a; a = b; b = tmp; } else { } if (! b) { __retres10 = a; goto return_label; } else { } { ma = a & ((1U << 24U) - 1U); ea = (int )(a >> 24U) - 128; ma = ma | (1U << 24U); mb = b & ((1U << 24U) - 1U); eb = (int )(b >> 24U) - 128; mb = mb | (1U << 24U); __VERIFIER_assert(ea >= eb); delta = ea - eb; mb = mb >> delta; } if (! mb) { __retres10 = a; goto return_label; } else { } ma = ma + mb; if (ma & (1U << 25U)) { if (ea == 127) { __retres10 = 4294967295U; goto return_label; } else { } ea = ea + 1; ma = ma >> 1U; } else { } { __VERIFIER_assert(ma < 1U << 25U); ma = ma & ((1U << 24U) - 1U); res = ma | (unsigned int )((ea + 128) << 24U); } __retres10 = res; return_label: /* CIL Label */ return (__retres10); } } unsigned int mulflt(unsigned int a , unsigned int b ) { unsigned int res ; unsigned int ma ; unsigned int mb ; unsigned long long accu ; int ea ; int eb ; unsigned int tmp ; unsigned int __retres10 ; { if (a < b) { tmp = a; a = b; b = tmp; } else { } if (! b) { __retres10 = 0U; goto return_label; } else { } ma = a & ((1U << 24U) - 1U); ea = (int )(a >> 24U) - 128; ma = ma | (1U << 24U); mb = b & ((1U << 24U) - 1U); eb = (int )(b >> 24U) - 128; mb = mb | (1U << 24U); ea = ea + eb; ea = ea + 24; if (ea > 127) { __retres10 = 4294967295U; goto return_label; } else { } if (ea < -128) { __retres10 = 0U; goto return_label; } else { } accu = ma; accu = accu * (unsigned long long )mb; accu = accu >> 24U; if (accu >= (unsigned long long )(1U << 25U)) { if (ea == 127) { __retres10 = 4294967295U; goto return_label; } else { } ea = ea + 1; accu = accu >> 1U; if (accu >= (unsigned long long )(1U << 25U)) { __retres10 = 4294967295U; goto return_label; } else { } } else { } { __VERIFIER_assert(accu < (unsigned long long )(1U << 25U)); __VERIFIER_assert(accu & (unsigned long long )(1U << 24U)); ma = accu; ma = ma & ~ (1U << 24U); res = ma | (unsigned int )((ea + 128) << 24U); } __retres10 = res; return_label: /* CIL Label */ return (__retres10); } } int main(void) { unsigned int a ; unsigned int ma = __VERIFIER_nondet_uint(); signed char ea = __VERIFIER_nondet_char(); unsigned int b ; unsigned int mb = __VERIFIER_nondet_uint(); signed char eb = __VERIFIER_nondet_char(); unsigned int r_add1 ; unsigned int r_add2 ; unsigned int zero ; int tmp ; int tmp___0 ; int __retres14 ; { { zero = base2flt(0, 0); a = base2flt(ma, ea); b = base2flt(mb, eb); r_add1 = addflt(a, b); r_add2 = addflt(b, a); } if (r_add1 < r_add2) { tmp___0 = -1; } else { if (r_add1 > r_add2) { tmp = 1; } else { tmp = 0; } tmp___0 = tmp; } { __VERIFIER_assert(tmp___0 == 0); } __retres14 = 0; return (__retres14); } }