// 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=false, 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_p05.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 char SORT_7; // BV with 4 bits const SORT_7 mask_SORT_7 = (SORT_7)-1 >> (sizeof(SORT_7) * 8 - 4); const SORT_7 msb_SORT_7 = (SORT_7)1 << (4 - 1); typedef unsigned short SORT_62; // BV with 10 bits const SORT_62 mask_SORT_62 = (SORT_62)-1 >> (sizeof(SORT_62) * 8 - 10); const SORT_62 msb_SORT_62 = (SORT_62)1 << (10 - 1); // Initializing constants ... const SORT_7 var_8 = 0; const SORT_1 var_16 = 1; const SORT_1 var_20 = 0; // Collecting input declarations ... SORT_1 input_2; SORT_3 input_4; SORT_1 input_5; SORT_1 input_6; SORT_1 input_23; SORT_1 input_25; SORT_1 input_27; SORT_1 input_29; SORT_1 input_31; SORT_1 input_33; SORT_1 input_35; SORT_1 input_37; SORT_1 input_39; SORT_1 input_41; SORT_1 input_43; SORT_3 input_45; SORT_1 input_48; SORT_1 input_50; SORT_1 input_52; SORT_1 input_54; SORT_1 input_56; SORT_1 input_58; SORT_1 input_60; SORT_62 input_63; SORT_1 input_65; // Collecting state declarations ... SORT_7 state_9 = __VERIFIER_nondet_uchar() & mask_SORT_7; SORT_7 state_11 = __VERIFIER_nondet_uchar() & mask_SORT_7; SORT_1 state_21 = __VERIFIER_nondet_uchar() & mask_SORT_1; // Initializing states ... SORT_7 init_10_arg_1 = var_8; state_9 = init_10_arg_1; SORT_7 init_12_arg_1 = var_8; state_11 = init_12_arg_1; SORT_1 init_22_arg_1 = var_20; state_21 = init_22_arg_1; for (;;) { // Getting external input values ... input_2 = __VERIFIER_nondet_uchar(); input_2 = input_2 & mask_SORT_1; input_4 = __VERIFIER_nondet_uchar(); input_4 = input_4 & mask_SORT_3; input_5 = __VERIFIER_nondet_uchar(); input_5 = input_5 & mask_SORT_1; input_6 = __VERIFIER_nondet_uchar(); input_6 = input_6 & mask_SORT_1; input_23 = __VERIFIER_nondet_uchar(); input_23 = input_23 & mask_SORT_1; input_25 = __VERIFIER_nondet_uchar(); input_25 = input_25 & mask_SORT_1; input_27 = __VERIFIER_nondet_uchar(); input_27 = input_27 & mask_SORT_1; input_29 = __VERIFIER_nondet_uchar(); input_29 = input_29 & mask_SORT_1; input_31 = __VERIFIER_nondet_uchar(); input_31 = input_31 & mask_SORT_1; input_33 = __VERIFIER_nondet_uchar(); input_33 = input_33 & mask_SORT_1; input_35 = __VERIFIER_nondet_uchar(); input_35 = input_35 & mask_SORT_1; input_37 = __VERIFIER_nondet_uchar(); input_37 = input_37 & mask_SORT_1; input_39 = __VERIFIER_nondet_uchar(); input_39 = input_39 & mask_SORT_1; input_41 = __VERIFIER_nondet_uchar(); input_41 = input_41 & mask_SORT_1; input_43 = __VERIFIER_nondet_uchar(); input_43 = input_43 & mask_SORT_1; input_45 = __VERIFIER_nondet_uchar(); input_45 = input_45 & mask_SORT_3; input_48 = __VERIFIER_nondet_uchar(); input_48 = input_48 & mask_SORT_1; input_50 = __VERIFIER_nondet_uchar(); input_50 = input_50 & mask_SORT_1; input_52 = __VERIFIER_nondet_uchar(); input_52 = input_52 & mask_SORT_1; input_54 = __VERIFIER_nondet_uchar(); input_54 = input_54 & mask_SORT_1; input_56 = __VERIFIER_nondet_uchar(); input_56 = input_56 & mask_SORT_1; input_58 = __VERIFIER_nondet_uchar(); input_58 = input_58 & mask_SORT_1; input_60 = __VERIFIER_nondet_uchar(); input_60 = input_60 & mask_SORT_1; input_63 = __VERIFIER_nondet_ushort(); input_63 = input_63 & mask_SORT_62; input_65 = __VERIFIER_nondet_uchar(); input_65 = input_65 & mask_SORT_1; // Assuming invariants ... // Asserting properties ... SORT_7 var_13_arg_0 = state_9; SORT_7 var_13_arg_1 = state_11; SORT_1 var_13 = var_13_arg_0 == var_13_arg_1; SORT_1 var_17_arg_0 = var_13; SORT_1 var_17 = ~var_17_arg_0; var_17 = var_17 & mask_SORT_1; SORT_1 var_18_arg_0 = var_16; SORT_1 var_18_arg_1 = var_17; SORT_1 var_18 = var_18_arg_0 & var_18_arg_1; var_18 = var_18 & mask_SORT_1; SORT_1 bad_19_arg_0 = var_18; __VERIFIER_assert(!(bad_19_arg_0)); // Computing next states ... SORT_1 var_67_arg_0 = state_21; SORT_7 var_67_arg_1 = state_9; SORT_7 var_67_arg_2 = state_9; SORT_7 var_67 = var_67_arg_0 ? var_67_arg_1 : var_67_arg_2; SORT_7 next_68_arg_1 = var_67; SORT_1 var_69_arg_0 = state_21; SORT_7 var_69_arg_1 = state_11; SORT_7 var_69_arg_2 = state_11; SORT_7 var_69 = var_69_arg_0 ? var_69_arg_1 : var_69_arg_2; SORT_7 next_70_arg_1 = var_69; SORT_1 var_71_arg_0 = state_21; SORT_1 var_71_arg_1 = var_20; SORT_1 var_71_arg_2 = var_16; SORT_1 var_71 = var_71_arg_0 ? var_71_arg_1 : var_71_arg_2; SORT_1 next_72_arg_1 = var_71; // Assigning next states ... state_9 = next_68_arg_1; state_11 = next_70_arg_1; state_21 = next_72_arg_1; } return 0; }