// 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", "Huffman_enc.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 5 bits const SORT_1 mask_SORT_1 = (SORT_1)-1 >> (sizeof(SORT_1) * 8 - 5); const SORT_1 msb_SORT_1 = (SORT_1)1 << (5 - 1); typedef unsigned char SORT_3; // BV with 1 bits const SORT_3 mask_SORT_3 = (SORT_3)-1 >> (sizeof(SORT_3) * 8 - 1); const SORT_3 msb_SORT_3 = (SORT_3)1 << (1 - 1); typedef unsigned short SORT_5; // BV with 10 bits const SORT_5 mask_SORT_5 = (SORT_5)-1 >> (sizeof(SORT_5) * 8 - 10); const SORT_5 msb_SORT_5 = (SORT_5)1 << (10 - 1); typedef unsigned int SORT_7; // BV with 32 bits const SORT_7 mask_SORT_7 = (SORT_7)-1 >> (sizeof(SORT_7) * 8 - 32); const SORT_7 msb_SORT_7 = (SORT_7)1 << (32 - 1); typedef unsigned char SORT_19; // BV with 8 bits const SORT_19 mask_SORT_19 = (SORT_19)-1 >> (sizeof(SORT_19) * 8 - 8); const SORT_19 msb_SORT_19 = (SORT_19)1 << (8 - 1); typedef unsigned short SORT_26; // BV with 9 bits const SORT_26 mask_SORT_26 = (SORT_26)-1 >> (sizeof(SORT_26) * 8 - 9); const SORT_26 msb_SORT_26 = (SORT_26)1 << (9 - 1); typedef unsigned int SORT_33; // BV with 27 bits const SORT_33 mask_SORT_33 = (SORT_33)-1 >> (sizeof(SORT_33) * 8 - 27); const SORT_33 msb_SORT_33 = (SORT_33)1 << (27 - 1); // Initializing constants ... const SORT_7 var_9 = 0; const SORT_3 var_15 = 1; const SORT_3 var_25 = 0; const SORT_5 var_29 = 0; const SORT_5 var_30 = 908; const SORT_7 var_31 = 32; const SORT_7 var_32 = 65; const SORT_33 var_34 = 0; const SORT_7 var_38 = 26; const SORT_7 var_43 = 74; const SORT_5 var_46 = 652; const SORT_7 var_48 = 90; const SORT_5 var_51 = 460; const SORT_7 var_53 = 88; const SORT_5 var_56 = 332; const SORT_7 var_58 = 75; const SORT_5 var_61 = 268; const SORT_7 var_63 = 81; const SORT_5 var_66 = 215; const SORT_7 var_68 = 86; const SORT_5 var_71 = 151; const SORT_7 var_73 = 66; const SORT_5 var_76 = 119; const SORT_7 var_78 = 77; const SORT_5 var_81 = 118; const SORT_7 var_83 = 89; const SORT_5 var_86 = 86; const SORT_7 var_88 = 71; const SORT_5 var_91 = 108; const SORT_7 var_93 = 87; const SORT_5 var_96 = 39; const SORT_7 var_98 = 68; const SORT_5 var_101 = 38; const SORT_7 var_103 = 72; const SORT_5 var_106 = 60; const SORT_7 var_108 = 76; const SORT_5 var_111 = 56; const SORT_7 var_113 = 67; const SORT_5 var_116 = 40; const SORT_7 var_118 = 70; const SORT_5 var_121 = 48; const SORT_7 var_123 = 80; const SORT_5 var_126 = 32; const SORT_7 var_128 = 85; const SORT_5 var_131 = 31; const SORT_7 var_133 = 84; const SORT_5 var_136 = 29; const SORT_7 var_138 = 78; const SORT_5 var_141 = 21; const SORT_7 var_143 = 82; const SORT_5 var_146 = 25; const SORT_7 var_148 = 79; const SORT_5 var_151 = 17; const SORT_7 var_153 = 73; const SORT_5 var_156 = 30; const SORT_5 var_160 = 20; const SORT_7 var_162 = 83; const SORT_5 var_165 = 11; const SORT_5 var_169 = 10; const SORT_7 var_171 = 69; const SORT_7 var_176 = 1; // Collecting input declarations ... SORT_1 input_2; SORT_3 input_4; SORT_19 input_20; SORT_3 input_22; // Collecting state declarations ... SORT_5 state_6 = __VERIFIER_nondet_ushort() & mask_SORT_5; // Initializing states ... 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_20 = __VERIFIER_nondet_uchar(); input_20 = input_20 & mask_SORT_19; input_22 = __VERIFIER_nondet_uchar(); input_22 = input_22 & mask_SORT_3; // Assuming invariants ... // Asserting properties ... SORT_5 var_8_arg_0 = state_6; SORT_7 var_8 = var_8_arg_0; SORT_7 var_10_arg_0 = var_8; SORT_7 var_10_arg_1 = var_9; SORT_3 var_10 = var_10_arg_0 == var_10_arg_1; SORT_5 var_11_arg_0 = state_6; SORT_7 var_11 = var_11_arg_0; SORT_7 var_12_arg_0 = var_11; SORT_7 var_12_arg_1 = var_9; SORT_3 var_12 = var_12_arg_0 == var_12_arg_1; SORT_3 var_13_arg_0 = var_12; SORT_3 var_13 = ~var_13_arg_0; var_13 = var_13 & mask_SORT_3; SORT_3 var_14_arg_0 = var_10; SORT_3 var_14_arg_1 = var_13; SORT_3 var_14 = var_14_arg_0 | var_14_arg_1; var_14 = var_14 & mask_SORT_3; SORT_3 var_16_arg_0 = var_14; SORT_3 var_16 = ~var_16_arg_0; var_16 = var_16 & mask_SORT_3; SORT_3 var_17_arg_0 = var_15; SORT_3 var_17_arg_1 = var_16; SORT_3 var_17 = var_17_arg_0 & var_17_arg_1; var_17 = var_17 & mask_SORT_3; SORT_3 bad_18_arg_0 = var_17; __VERIFIER_assert(!(bad_18_arg_0)); // Computing next states ... SORT_5 var_174_arg_0 = state_6; SORT_26 var_174 = var_174_arg_0 >> 1; var_174 = var_174 & mask_SORT_26; SORT_26 var_175_arg_0 = var_174; SORT_7 var_175 = var_175_arg_0; SORT_7 var_177_arg_0 = var_175; SORT_7 var_177_arg_1 = var_176; SORT_3 var_177 = var_177_arg_0 == var_177_arg_1; SORT_1 var_37_arg_0 = input_2; SORT_7 var_37 = var_37_arg_0; SORT_7 var_39_arg_0 = var_37; SORT_7 var_39_arg_1 = var_38; SORT_3 var_39 = var_39_arg_0 < var_39_arg_1; SORT_33 var_35_arg_0 = var_34; SORT_1 var_35_arg_1 = input_2; SORT_7 var_35 = ((SORT_7)var_35_arg_0 << 5) | var_35_arg_1; SORT_7 var_36_arg_0 = var_32; SORT_7 var_36_arg_1 = var_35; SORT_7 var_36 = var_36_arg_0 + var_36_arg_1; var_36 = var_36 & mask_SORT_7; SORT_3 var_40_arg_0 = var_39; SORT_7 var_40_arg_1 = var_36; SORT_7 var_40_arg_2 = var_31; SORT_7 var_40 = var_40_arg_0 ? var_40_arg_1 : var_40_arg_2; SORT_7 var_41_arg_0 = var_40; SORT_19 var_41 = var_41_arg_0 >> 0; var_41 = var_41 & mask_SORT_19; SORT_19 var_170_arg_0 = var_41; SORT_7 var_170 = var_170_arg_0; SORT_7 var_172_arg_0 = var_170; SORT_7 var_172_arg_1 = var_171; SORT_3 var_172 = var_172_arg_0 == var_172_arg_1; SORT_19 var_166_arg_0 = var_41; SORT_7 var_166 = var_166_arg_0; SORT_7 var_167_arg_0 = var_166; SORT_7 var_167_arg_1 = var_31; SORT_3 var_167 = var_167_arg_0 == var_167_arg_1; SORT_19 var_161_arg_0 = var_41; SORT_7 var_161 = var_161_arg_0; SORT_7 var_163_arg_0 = var_161; SORT_7 var_163_arg_1 = var_162; SORT_3 var_163 = var_163_arg_0 == var_163_arg_1; SORT_19 var_157_arg_0 = var_41; SORT_7 var_157 = var_157_arg_0; SORT_7 var_158_arg_0 = var_157; SORT_7 var_158_arg_1 = var_32; SORT_3 var_158 = var_158_arg_0 == var_158_arg_1; SORT_19 var_152_arg_0 = var_41; SORT_7 var_152 = var_152_arg_0; SORT_7 var_154_arg_0 = var_152; SORT_7 var_154_arg_1 = var_153; SORT_3 var_154 = var_154_arg_0 == var_154_arg_1; SORT_19 var_147_arg_0 = var_41; SORT_7 var_147 = var_147_arg_0; SORT_7 var_149_arg_0 = var_147; SORT_7 var_149_arg_1 = var_148; SORT_3 var_149 = var_149_arg_0 == var_149_arg_1; SORT_19 var_142_arg_0 = var_41; SORT_7 var_142 = var_142_arg_0; SORT_7 var_144_arg_0 = var_142; SORT_7 var_144_arg_1 = var_143; SORT_3 var_144 = var_144_arg_0 == var_144_arg_1; SORT_19 var_137_arg_0 = var_41; SORT_7 var_137 = var_137_arg_0; SORT_7 var_139_arg_0 = var_137; SORT_7 var_139_arg_1 = var_138; SORT_3 var_139 = var_139_arg_0 == var_139_arg_1; SORT_19 var_132_arg_0 = var_41; SORT_7 var_132 = var_132_arg_0; SORT_7 var_134_arg_0 = var_132; SORT_7 var_134_arg_1 = var_133; SORT_3 var_134 = var_134_arg_0 == var_134_arg_1; SORT_19 var_127_arg_0 = var_41; SORT_7 var_127 = var_127_arg_0; SORT_7 var_129_arg_0 = var_127; SORT_7 var_129_arg_1 = var_128; SORT_3 var_129 = var_129_arg_0 == var_129_arg_1; SORT_19 var_122_arg_0 = var_41; SORT_7 var_122 = var_122_arg_0; SORT_7 var_124_arg_0 = var_122; SORT_7 var_124_arg_1 = var_123; SORT_3 var_124 = var_124_arg_0 == var_124_arg_1; SORT_19 var_117_arg_0 = var_41; SORT_7 var_117 = var_117_arg_0; SORT_7 var_119_arg_0 = var_117; SORT_7 var_119_arg_1 = var_118; SORT_3 var_119 = var_119_arg_0 == var_119_arg_1; SORT_19 var_112_arg_0 = var_41; SORT_7 var_112 = var_112_arg_0; SORT_7 var_114_arg_0 = var_112; SORT_7 var_114_arg_1 = var_113; SORT_3 var_114 = var_114_arg_0 == var_114_arg_1; SORT_19 var_107_arg_0 = var_41; SORT_7 var_107 = var_107_arg_0; SORT_7 var_109_arg_0 = var_107; SORT_7 var_109_arg_1 = var_108; SORT_3 var_109 = var_109_arg_0 == var_109_arg_1; SORT_19 var_102_arg_0 = var_41; SORT_7 var_102 = var_102_arg_0; SORT_7 var_104_arg_0 = var_102; SORT_7 var_104_arg_1 = var_103; SORT_3 var_104 = var_104_arg_0 == var_104_arg_1; SORT_19 var_97_arg_0 = var_41; SORT_7 var_97 = var_97_arg_0; SORT_7 var_99_arg_0 = var_97; SORT_7 var_99_arg_1 = var_98; SORT_3 var_99 = var_99_arg_0 == var_99_arg_1; SORT_19 var_92_arg_0 = var_41; SORT_7 var_92 = var_92_arg_0; SORT_7 var_94_arg_0 = var_92; SORT_7 var_94_arg_1 = var_93; SORT_3 var_94 = var_94_arg_0 == var_94_arg_1; SORT_19 var_87_arg_0 = var_41; SORT_7 var_87 = var_87_arg_0; SORT_7 var_89_arg_0 = var_87; SORT_7 var_89_arg_1 = var_88; SORT_3 var_89 = var_89_arg_0 == var_89_arg_1; SORT_19 var_82_arg_0 = var_41; SORT_7 var_82 = var_82_arg_0; SORT_7 var_84_arg_0 = var_82; SORT_7 var_84_arg_1 = var_83; SORT_3 var_84 = var_84_arg_0 == var_84_arg_1; SORT_19 var_77_arg_0 = var_41; SORT_7 var_77 = var_77_arg_0; SORT_7 var_79_arg_0 = var_77; SORT_7 var_79_arg_1 = var_78; SORT_3 var_79 = var_79_arg_0 == var_79_arg_1; SORT_19 var_72_arg_0 = var_41; SORT_7 var_72 = var_72_arg_0; SORT_7 var_74_arg_0 = var_72; SORT_7 var_74_arg_1 = var_73; SORT_3 var_74 = var_74_arg_0 == var_74_arg_1; SORT_19 var_67_arg_0 = var_41; SORT_7 var_67 = var_67_arg_0; SORT_7 var_69_arg_0 = var_67; SORT_7 var_69_arg_1 = var_68; SORT_3 var_69 = var_69_arg_0 == var_69_arg_1; SORT_19 var_62_arg_0 = var_41; SORT_7 var_62 = var_62_arg_0; SORT_7 var_64_arg_0 = var_62; SORT_7 var_64_arg_1 = var_63; SORT_3 var_64 = var_64_arg_0 == var_64_arg_1; SORT_19 var_57_arg_0 = var_41; SORT_7 var_57 = var_57_arg_0; SORT_7 var_59_arg_0 = var_57; SORT_7 var_59_arg_1 = var_58; SORT_3 var_59 = var_59_arg_0 == var_59_arg_1; SORT_19 var_52_arg_0 = var_41; SORT_7 var_52 = var_52_arg_0; SORT_7 var_54_arg_0 = var_52; SORT_7 var_54_arg_1 = var_53; SORT_3 var_54 = var_54_arg_0 == var_54_arg_1; SORT_19 var_47_arg_0 = var_41; SORT_7 var_47 = var_47_arg_0; SORT_7 var_49_arg_0 = var_47; SORT_7 var_49_arg_1 = var_48; SORT_3 var_49 = var_49_arg_0 == var_49_arg_1; SORT_19 var_42_arg_0 = var_41; SORT_7 var_42 = var_42_arg_0; SORT_7 var_44_arg_0 = var_42; SORT_7 var_44_arg_1 = var_43; SORT_3 var_44 = var_44_arg_0 == var_44_arg_1; SORT_3 var_45_arg_0 = var_44; SORT_5 var_45_arg_1 = var_30; SORT_5 var_45_arg_2 = var_29; SORT_5 var_45 = var_45_arg_0 ? var_45_arg_1 : var_45_arg_2; SORT_3 var_50_arg_0 = var_49; SORT_5 var_50_arg_1 = var_46; SORT_5 var_50_arg_2 = var_45; SORT_5 var_50 = var_50_arg_0 ? var_50_arg_1 : var_50_arg_2; SORT_3 var_55_arg_0 = var_54; SORT_5 var_55_arg_1 = var_51; SORT_5 var_55_arg_2 = var_50; SORT_5 var_55 = var_55_arg_0 ? var_55_arg_1 : var_55_arg_2; SORT_3 var_60_arg_0 = var_59; SORT_5 var_60_arg_1 = var_56; SORT_5 var_60_arg_2 = var_55; SORT_5 var_60 = var_60_arg_0 ? var_60_arg_1 : var_60_arg_2; SORT_3 var_65_arg_0 = var_64; SORT_5 var_65_arg_1 = var_61; SORT_5 var_65_arg_2 = var_60; SORT_5 var_65 = var_65_arg_0 ? var_65_arg_1 : var_65_arg_2; SORT_3 var_70_arg_0 = var_69; SORT_5 var_70_arg_1 = var_66; SORT_5 var_70_arg_2 = var_65; SORT_5 var_70 = var_70_arg_0 ? var_70_arg_1 : var_70_arg_2; SORT_3 var_75_arg_0 = var_74; SORT_5 var_75_arg_1 = var_71; SORT_5 var_75_arg_2 = var_70; SORT_5 var_75 = var_75_arg_0 ? var_75_arg_1 : var_75_arg_2; SORT_3 var_80_arg_0 = var_79; SORT_5 var_80_arg_1 = var_76; SORT_5 var_80_arg_2 = var_75; SORT_5 var_80 = var_80_arg_0 ? var_80_arg_1 : var_80_arg_2; SORT_3 var_85_arg_0 = var_84; SORT_5 var_85_arg_1 = var_81; SORT_5 var_85_arg_2 = var_80; SORT_5 var_85 = var_85_arg_0 ? var_85_arg_1 : var_85_arg_2; SORT_3 var_90_arg_0 = var_89; SORT_5 var_90_arg_1 = var_86; SORT_5 var_90_arg_2 = var_85; SORT_5 var_90 = var_90_arg_0 ? var_90_arg_1 : var_90_arg_2; SORT_3 var_95_arg_0 = var_94; SORT_5 var_95_arg_1 = var_91; SORT_5 var_95_arg_2 = var_90; SORT_5 var_95 = var_95_arg_0 ? var_95_arg_1 : var_95_arg_2; SORT_3 var_100_arg_0 = var_99; SORT_5 var_100_arg_1 = var_96; SORT_5 var_100_arg_2 = var_95; SORT_5 var_100 = var_100_arg_0 ? var_100_arg_1 : var_100_arg_2; SORT_3 var_105_arg_0 = var_104; SORT_5 var_105_arg_1 = var_101; SORT_5 var_105_arg_2 = var_100; SORT_5 var_105 = var_105_arg_0 ? var_105_arg_1 : var_105_arg_2; SORT_3 var_110_arg_0 = var_109; SORT_5 var_110_arg_1 = var_106; SORT_5 var_110_arg_2 = var_105; SORT_5 var_110 = var_110_arg_0 ? var_110_arg_1 : var_110_arg_2; SORT_3 var_115_arg_0 = var_114; SORT_5 var_115_arg_1 = var_111; SORT_5 var_115_arg_2 = var_110; SORT_5 var_115 = var_115_arg_0 ? var_115_arg_1 : var_115_arg_2; SORT_3 var_120_arg_0 = var_119; SORT_5 var_120_arg_1 = var_116; SORT_5 var_120_arg_2 = var_115; SORT_5 var_120 = var_120_arg_0 ? var_120_arg_1 : var_120_arg_2; SORT_3 var_125_arg_0 = var_124; SORT_5 var_125_arg_1 = var_121; SORT_5 var_125_arg_2 = var_120; SORT_5 var_125 = var_125_arg_0 ? var_125_arg_1 : var_125_arg_2; SORT_3 var_130_arg_0 = var_129; SORT_5 var_130_arg_1 = var_126; SORT_5 var_130_arg_2 = var_125; SORT_5 var_130 = var_130_arg_0 ? var_130_arg_1 : var_130_arg_2; SORT_3 var_135_arg_0 = var_134; SORT_5 var_135_arg_1 = var_131; SORT_5 var_135_arg_2 = var_130; SORT_5 var_135 = var_135_arg_0 ? var_135_arg_1 : var_135_arg_2; SORT_3 var_140_arg_0 = var_139; SORT_5 var_140_arg_1 = var_136; SORT_5 var_140_arg_2 = var_135; SORT_5 var_140 = var_140_arg_0 ? var_140_arg_1 : var_140_arg_2; SORT_3 var_145_arg_0 = var_144; SORT_5 var_145_arg_1 = var_141; SORT_5 var_145_arg_2 = var_140; SORT_5 var_145 = var_145_arg_0 ? var_145_arg_1 : var_145_arg_2; SORT_3 var_150_arg_0 = var_149; SORT_5 var_150_arg_1 = var_146; SORT_5 var_150_arg_2 = var_145; SORT_5 var_150 = var_150_arg_0 ? var_150_arg_1 : var_150_arg_2; SORT_3 var_155_arg_0 = var_154; SORT_5 var_155_arg_1 = var_151; SORT_5 var_155_arg_2 = var_150; SORT_5 var_155 = var_155_arg_0 ? var_155_arg_1 : var_155_arg_2; SORT_3 var_159_arg_0 = var_158; SORT_5 var_159_arg_1 = var_156; SORT_5 var_159_arg_2 = var_155; SORT_5 var_159 = var_159_arg_0 ? var_159_arg_1 : var_159_arg_2; SORT_3 var_164_arg_0 = var_163; SORT_5 var_164_arg_1 = var_160; SORT_5 var_164_arg_2 = var_159; SORT_5 var_164 = var_164_arg_0 ? var_164_arg_1 : var_164_arg_2; SORT_3 var_168_arg_0 = var_167; SORT_5 var_168_arg_1 = var_165; SORT_5 var_168_arg_2 = var_164; SORT_5 var_168 = var_168_arg_0 ? var_168_arg_1 : var_168_arg_2; SORT_3 var_173_arg_0 = var_172; SORT_5 var_173_arg_1 = var_169; SORT_5 var_173_arg_2 = var_168; SORT_5 var_173 = var_173_arg_0 ? var_173_arg_1 : var_173_arg_2; SORT_5 var_27_arg_0 = state_6; SORT_26 var_27 = var_27_arg_0 >> 1; var_27 = var_27 & mask_SORT_26; SORT_3 var_28_arg_0 = var_25; SORT_26 var_28_arg_1 = var_27; SORT_5 var_28 = ((SORT_5)var_28_arg_0 << 9) | var_28_arg_1; SORT_3 var_178_arg_0 = var_177; SORT_5 var_178_arg_1 = var_173; SORT_5 var_178_arg_2 = var_28; SORT_5 var_178 = var_178_arg_0 ? var_178_arg_1 : var_178_arg_2; SORT_5 next_179_arg_1 = var_178; // Assigning next states ... state_6 = next_179_arg_1; } return 0; }