// 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", "cal51.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_5; // BV with 3 bits const SORT_5 mask_SORT_5 = (SORT_5)-1 >> (sizeof(SORT_5) * 8 - 3); const SORT_5 msb_SORT_5 = (SORT_5)1 << (3 - 1); typedef unsigned char SORT_27; // BV with 2 bits const SORT_27 mask_SORT_27 = (SORT_27)-1 >> (sizeof(SORT_27) * 8 - 2); const SORT_27 msb_SORT_27 = (SORT_27)1 << (2 - 1); // Initializing constants ... const SORT_1 var_11 = 0; const SORT_5 var_15 = 0; const SORT_5 var_21 = 2; const SORT_5 var_24 = 1; const SORT_1 var_41 = 1; // Collecting input declarations ... SORT_1 input_2; SORT_1 input_3; SORT_1 input_4; SORT_5 input_6; SORT_5 input_7; SORT_1 input_8; SORT_5 input_9; SORT_5 input_10; // Collecting state declarations ... SORT_1 state_12 = __VERIFIER_nondet_uchar() & mask_SORT_1; SORT_5 state_16 = __VERIFIER_nondet_uchar() & mask_SORT_5; SORT_1 state_18 = __VERIFIER_nondet_uchar() & mask_SORT_1; SORT_5 state_30 = __VERIFIER_nondet_uchar() & mask_SORT_5; // Initializing states ... SORT_1 init_13_arg_1 = var_11; state_12 = init_13_arg_1; SORT_5 init_17_arg_1 = var_15; state_16 = init_17_arg_1; SORT_1 init_19_arg_1 = var_11; state_18 = init_19_arg_1; SORT_5 init_31_arg_1 = var_15; state_30 = init_31_arg_1; for (;;) { // Getting external input values ... input_2 = __VERIFIER_nondet_uchar(); input_2 = input_2 & mask_SORT_1; input_3 = __VERIFIER_nondet_uchar(); input_3 = input_3 & mask_SORT_1; input_4 = __VERIFIER_nondet_uchar(); input_6 = __VERIFIER_nondet_uchar(); input_7 = __VERIFIER_nondet_uchar(); input_8 = __VERIFIER_nondet_uchar(); input_9 = __VERIFIER_nondet_uchar(); input_10 = __VERIFIER_nondet_uchar(); // Assuming invariants ... // Asserting properties ... SORT_1 var_14_arg_0 = state_12; SORT_1 var_14 = ~var_14_arg_0; SORT_1 var_20_arg_0 = state_18; SORT_5 var_20_arg_1 = state_16; SORT_5 var_20_arg_2 = input_7; SORT_5 var_20 = var_20_arg_0 ? var_20_arg_1 : var_20_arg_2; var_20 = var_20 & mask_SORT_5; SORT_5 var_25_arg_0 = var_20; SORT_5 var_25_arg_1 = var_24; SORT_1 var_25 = var_25_arg_0 == var_25_arg_1; SORT_1 var_26_arg_0 = var_25; SORT_1 var_26 = ~var_26_arg_0; SORT_5 var_22_arg_0 = var_20; SORT_5 var_22_arg_1 = var_21; SORT_1 var_22 = var_22_arg_0 == var_22_arg_1; SORT_1 var_23_arg_0 = var_22; SORT_1 var_23 = ~var_23_arg_0; var_23 = var_23 & mask_SORT_1; SORT_1 var_28_arg_0 = var_26; SORT_1 var_28_arg_1 = var_23; SORT_27 var_28 = ((SORT_27)var_28_arg_0 << 1) | var_28_arg_1; var_28 = var_28 & mask_SORT_27; SORT_27 var_29_arg_0 = var_28; SORT_1 var_29 = var_29_arg_0 == mask_SORT_27; SORT_1 var_32_arg_0 = state_18; SORT_5 var_32_arg_1 = state_30; SORT_5 var_32_arg_2 = input_7; SORT_5 var_32 = var_32_arg_0 ? var_32_arg_1 : var_32_arg_2; var_32 = var_32 & mask_SORT_5; SORT_5 var_33_arg_0 = var_32; SORT_5 var_33_arg_1 = var_21; SORT_1 var_33 = var_33_arg_0 == var_33_arg_1; SORT_1 var_34_arg_0 = var_33; SORT_1 var_34 = ~var_34_arg_0; var_34 = var_34 & mask_SORT_1; SORT_1 var_35_arg_0 = var_26; SORT_1 var_35_arg_1 = var_34; SORT_27 var_35 = ((SORT_27)var_35_arg_0 << 1) | var_35_arg_1; var_35 = var_35 & mask_SORT_27; SORT_27 var_36_arg_0 = var_35; SORT_1 var_36 = var_36_arg_0 == mask_SORT_27; SORT_1 var_37_arg_0 = var_29; SORT_1 var_37_arg_1 = var_36; SORT_1 var_37 = var_37_arg_0 == var_37_arg_1; SORT_1 var_38_arg_0 = var_14; SORT_1 var_38_arg_1 = var_37; SORT_1 var_38 = var_38_arg_0 | var_38_arg_1; SORT_1 var_42_arg_0 = var_38; SORT_1 var_42 = ~var_42_arg_0; SORT_1 var_43_arg_0 = var_41; SORT_1 var_43_arg_1 = var_42; SORT_1 var_43 = var_43_arg_0 & var_43_arg_1; var_43 = var_43 & mask_SORT_1; SORT_1 bad_44_arg_0 = var_43; __VERIFIER_assert(!(bad_44_arg_0)); // Computing next states ... SORT_1 next_72_arg_1 = var_41; SORT_1 var_67_arg_0 = state_12; SORT_1 var_67 = ~var_67_arg_0; var_67 = var_67 & mask_SORT_1; SORT_1 var_45_arg_0 = input_4; SORT_1 var_45 = ~var_45_arg_0; var_45 = var_45 & mask_SORT_1; SORT_1 var_46_arg_0 = var_45; SORT_5 var_46_arg_1 = input_6; SORT_5 var_46_arg_2 = var_20; SORT_5 var_46 = var_46_arg_0 ? var_46_arg_1 : var_46_arg_2; SORT_1 var_48_arg_0 = input_3; SORT_5 var_48_arg_1 = var_15; SORT_5 var_48_arg_2 = var_46; SORT_5 var_48 = var_48_arg_0 ? var_48_arg_1 : var_48_arg_2; SORT_1 var_63_arg_0 = input_2; SORT_5 var_63_arg_1 = var_48; SORT_5 var_63_arg_2 = var_20; SORT_5 var_63 = var_63_arg_0 ? var_63_arg_1 : var_63_arg_2; SORT_1 var_73_arg_0 = var_11; SORT_5 var_73_arg_1 = var_15; SORT_5 var_73_arg_2 = var_63; SORT_5 var_73 = var_73_arg_0 ? var_73_arg_1 : var_73_arg_2; SORT_1 var_74_arg_0 = var_67; SORT_5 var_74_arg_1 = input_10; SORT_5 var_74_arg_2 = var_73; SORT_5 var_74 = var_74_arg_0 ? var_74_arg_1 : var_74_arg_2; SORT_5 next_75_arg_1 = var_74; SORT_1 var_76_arg_0 = var_11; SORT_1 var_76_arg_1 = var_11; SORT_1 var_76_arg_2 = var_41; SORT_1 var_76 = var_76_arg_0 ? var_76_arg_1 : var_76_arg_2; SORT_1 var_77_arg_0 = var_67; SORT_1 var_77_arg_1 = var_11; SORT_1 var_77_arg_2 = var_76; SORT_1 var_77 = var_77_arg_0 ? var_77_arg_1 : var_77_arg_2; var_77 = var_77 & mask_SORT_1; SORT_1 next_78_arg_1 = var_77; SORT_1 var_50_arg_0 = var_45; SORT_5 var_50_arg_1 = input_6; SORT_5 var_50_arg_2 = var_32; SORT_5 var_50 = var_50_arg_0 ? var_50_arg_1 : var_50_arg_2; SORT_1 var_52_arg_0 = input_3; SORT_5 var_52_arg_1 = var_15; SORT_5 var_52_arg_2 = var_50; SORT_5 var_52 = var_52_arg_0 ? var_52_arg_1 : var_52_arg_2; SORT_1 var_65_arg_0 = input_2; SORT_5 var_65_arg_1 = var_52; SORT_5 var_65_arg_2 = var_32; SORT_5 var_65 = var_65_arg_0 ? var_65_arg_1 : var_65_arg_2; SORT_1 var_79_arg_0 = var_11; SORT_5 var_79_arg_1 = var_15; SORT_5 var_79_arg_2 = var_65; SORT_5 var_79 = var_79_arg_0 ? var_79_arg_1 : var_79_arg_2; SORT_1 var_80_arg_0 = var_67; SORT_5 var_80_arg_1 = input_9; SORT_5 var_80_arg_2 = var_79; SORT_5 var_80 = var_80_arg_0 ? var_80_arg_1 : var_80_arg_2; SORT_5 next_81_arg_1 = var_80; // Assigning next states ... state_12 = next_72_arg_1; state_16 = next_75_arg_1; state_18 = next_78_arg_1; state_30 = next_81_arg_1; } return 0; }