// This file is part of the SV-Benchmarks collection of verification tasks: // https://gitlab.com/sosy-lab/benchmarking/sv-benchmarks // // SPDX-FileCopyrightText: 2020 Aman Goel // SPDX-FileCopyrightText: 2022 The SV-Benchmarks Community // // SPDX-License-Identifier: GPL-3.0-or-later // This C program is converted from Btor2 by Btor2C version sha1:a0fa249 // with arguments: { architecture=64, lazy_modulo=true, use_memmove=false, unroll_inner_loops=false, shortest_type=true, diff_type=true, decimal_constant=true, zero_init=false, sra_extend_sign=true } // Comments from the original Btor2 file: // ; source: https://github.com/aman-goel/avr/tree/92362931700b66684418a991d018c9fbdbebc06f/tests // ; BTOR description generated by Yosys 0.9+431 (git sha1 4a3b5437, clang 4.0.1-6 -fPIC -Os) for module main. extern unsigned char __VERIFIER_nondet_uchar(); extern unsigned short __VERIFIER_nondet_ushort(); extern unsigned int __VERIFIER_nondet_uint(); extern unsigned long __VERIFIER_nondet_ulong(); extern void abort(void); extern void __assert_fail(const char *, const char *, unsigned int, const char *); void reach_error() { __assert_fail("0", "vcegar_QF_BV_itc99_b13_p21.c", 0, "reach_error"); } void __VERIFIER_assert(int cond) { if (!(cond)) { ERROR: { reach_error(); abort(); } } } void assume_abort_if_not(int cond) { if (!cond) { abort(); } } int main() { // Defining sorts ... typedef unsigned char SORT_1; // BV with 1 bits const SORT_1 mask_SORT_1 = (SORT_1)-1 >> (sizeof(SORT_1) * 8 - 1); const SORT_1 msb_SORT_1 = (SORT_1)1 << (1 - 1); typedef unsigned char SORT_3; // BV with 8 bits const SORT_3 mask_SORT_3 = (SORT_3)-1 >> (sizeof(SORT_3) * 8 - 8); const SORT_3 msb_SORT_3 = (SORT_3)1 << (8 - 1); typedef unsigned int SORT_10; // BV with 32 bits const SORT_10 mask_SORT_10 = (SORT_10)-1 >> (sizeof(SORT_10) * 8 - 32); const SORT_10 msb_SORT_10 = (SORT_10)1 << (32 - 1); typedef unsigned char SORT_31; // BV with 4 bits const SORT_31 mask_SORT_31 = (SORT_31)-1 >> (sizeof(SORT_31) * 8 - 4); const SORT_31 msb_SORT_31 = (SORT_31)1 << (4 - 1); typedef unsigned short SORT_67; // BV with 10 bits const SORT_67 mask_SORT_67 = (SORT_67)-1 >> (sizeof(SORT_67) * 8 - 10); const SORT_67 msb_SORT_67 = (SORT_67)1 << (10 - 1); // Initializing constants ... const SORT_1 var_7 = 0; const SORT_10 var_12 = 0; const SORT_1 var_21 = 1; // Collecting input declarations ... SORT_1 input_2; SORT_3 input_4; SORT_1 input_5; SORT_1 input_6; SORT_1 input_27; SORT_1 input_29; SORT_31 input_32; SORT_1 input_34; SORT_31 input_36; SORT_1 input_38; SORT_1 input_40; SORT_1 input_42; SORT_1 input_44; SORT_1 input_46; SORT_1 input_48; SORT_3 input_50; SORT_1 input_53; SORT_1 input_55; SORT_1 input_57; SORT_1 input_59; SORT_1 input_61; SORT_1 input_63; SORT_1 input_65; SORT_67 input_68; SORT_1 input_70; // Collecting state declarations ... SORT_1 state_8 = __VERIFIER_nondet_uchar() & mask_SORT_1; SORT_1 state_14 = __VERIFIER_nondet_uchar() & mask_SORT_1; SORT_1 state_25 = __VERIFIER_nondet_uchar() & mask_SORT_1; // Initializing states ... SORT_1 init_9_arg_1 = var_7; state_8 = init_9_arg_1; SORT_1 init_15_arg_1 = var_7; state_14 = init_15_arg_1; SORT_1 init_26_arg_1 = var_7; state_25 = init_26_arg_1; for (;;) { // Getting external input values ... input_2 = __VERIFIER_nondet_uchar(); input_4 = __VERIFIER_nondet_uchar(); input_5 = __VERIFIER_nondet_uchar(); input_6 = __VERIFIER_nondet_uchar(); input_27 = __VERIFIER_nondet_uchar(); input_29 = __VERIFIER_nondet_uchar(); input_32 = __VERIFIER_nondet_uchar(); input_34 = __VERIFIER_nondet_uchar(); input_36 = __VERIFIER_nondet_uchar(); input_38 = __VERIFIER_nondet_uchar(); input_40 = __VERIFIER_nondet_uchar(); input_42 = __VERIFIER_nondet_uchar(); input_44 = __VERIFIER_nondet_uchar(); input_46 = __VERIFIER_nondet_uchar(); input_48 = __VERIFIER_nondet_uchar(); input_50 = __VERIFIER_nondet_uchar(); input_53 = __VERIFIER_nondet_uchar(); input_55 = __VERIFIER_nondet_uchar(); input_57 = __VERIFIER_nondet_uchar(); input_59 = __VERIFIER_nondet_uchar(); input_61 = __VERIFIER_nondet_uchar(); input_63 = __VERIFIER_nondet_uchar(); input_65 = __VERIFIER_nondet_uchar(); input_68 = __VERIFIER_nondet_ushort(); input_70 = __VERIFIER_nondet_uchar(); // Assuming invariants ... // Asserting properties ... SORT_1 var_11_arg_0 = state_8; var_11_arg_0 = var_11_arg_0 & mask_SORT_1; SORT_10 var_11 = var_11_arg_0; SORT_10 var_13_arg_0 = var_11; SORT_10 var_13_arg_1 = var_12; SORT_1 var_13 = var_13_arg_0 == var_13_arg_1; SORT_1 var_16_arg_0 = state_14; var_16_arg_0 = var_16_arg_0 & mask_SORT_1; SORT_10 var_16 = var_16_arg_0; SORT_10 var_17_arg_0 = var_16; SORT_10 var_17_arg_1 = var_12; SORT_1 var_17 = var_17_arg_0 == var_17_arg_1; SORT_1 var_18_arg_0 = var_13; SORT_1 var_18_arg_1 = var_17; SORT_1 var_18 = var_18_arg_0 | var_18_arg_1; SORT_1 var_22_arg_0 = var_18; SORT_1 var_22 = ~var_22_arg_0; SORT_1 var_23_arg_0 = var_21; SORT_1 var_23_arg_1 = var_22; SORT_1 var_23 = var_23_arg_0 & var_23_arg_1; var_23 = var_23 & mask_SORT_1; SORT_1 bad_24_arg_0 = var_23; __VERIFIER_assert(!(bad_24_arg_0)); // Computing next states ... SORT_1 var_72_arg_0 = state_25; SORT_1 var_72_arg_1 = state_8; SORT_1 var_72_arg_2 = state_8; SORT_1 var_72 = var_72_arg_0 ? var_72_arg_1 : var_72_arg_2; SORT_1 next_73_arg_1 = var_72; SORT_1 var_74_arg_0 = state_25; SORT_1 var_74_arg_1 = state_14; SORT_1 var_74_arg_2 = var_21; SORT_1 var_74 = var_74_arg_0 ? var_74_arg_1 : var_74_arg_2; SORT_1 next_75_arg_1 = var_74; SORT_1 var_76_arg_0 = state_25; SORT_1 var_76_arg_1 = var_7; SORT_1 var_76_arg_2 = var_21; SORT_1 var_76 = var_76_arg_0 ? var_76_arg_1 : var_76_arg_2; var_76 = var_76 & mask_SORT_1; SORT_1 next_77_arg_1 = var_76; // Assigning next states ... state_8 = next_73_arg_1; state_14 = next_75_arg_1; state_25 = next_77_arg_1; } return 0; }