./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_hash_byte_cursor_ptr_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 63182f13 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9d4ec8e-3d8c-4efa-b6e5-2237832e296f/bin/utaipan-vmNK8stdcF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9d4ec8e-3d8c-4efa-b6e5-2237832e296f/bin/utaipan-vmNK8stdcF/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9d4ec8e-3d8c-4efa-b6e5-2237832e296f/bin/utaipan-vmNK8stdcF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9d4ec8e-3d8c-4efa-b6e5-2237832e296f/bin/utaipan-vmNK8stdcF/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_hash_byte_cursor_ptr_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9d4ec8e-3d8c-4efa-b6e5-2237832e296f/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9d4ec8e-3d8c-4efa-b6e5-2237832e296f/bin/utaipan-vmNK8stdcF --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash ab48078691743837960e369bd318845908490844fac300de97818a03fa84d8a1 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-12 23:51:10,833 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-12 23:51:10,838 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-12 23:51:10,889 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-12 23:51:10,890 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-12 23:51:10,894 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-12 23:51:10,898 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-12 23:51:10,902 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-12 23:51:10,905 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-12 23:51:10,911 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-12 23:51:10,912 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-12 23:51:10,915 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-12 23:51:10,915 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-12 23:51:10,918 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-12 23:51:10,921 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-12 23:51:10,923 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-12 23:51:10,925 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-12 23:51:10,926 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-12 23:51:10,933 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-12 23:51:10,944 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-12 23:51:10,946 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-12 23:51:10,948 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-12 23:51:10,951 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-12 23:51:10,952 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-12 23:51:10,961 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-12 23:51:10,962 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-12 23:51:10,962 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-12 23:51:10,965 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-12 23:51:10,965 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-12 23:51:10,967 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-12 23:51:10,967 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-12 23:51:10,968 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-12 23:51:10,970 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-12 23:51:10,972 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-12 23:51:10,973 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-12 23:51:10,974 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-12 23:51:10,975 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-12 23:51:10,975 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-12 23:51:10,975 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-12 23:51:10,976 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-12 23:51:10,977 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-12 23:51:10,978 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9d4ec8e-3d8c-4efa-b6e5-2237832e296f/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-12 23:51:11,024 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-12 23:51:11,025 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-12 23:51:11,027 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-12 23:51:11,027 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-12 23:51:11,027 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-12 23:51:11,027 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-12 23:51:11,028 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-12 23:51:11,028 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-12 23:51:11,034 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-12 23:51:11,035 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-12 23:51:11,036 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-12 23:51:11,036 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-12 23:51:11,036 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-12 23:51:11,037 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-12 23:51:11,037 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-12 23:51:11,037 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-12 23:51:11,038 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-12 23:51:11,038 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-12 23:51:11,039 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-12 23:51:11,039 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-12 23:51:11,039 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-12 23:51:11,039 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-12 23:51:11,040 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-12 23:51:11,040 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-12 23:51:11,040 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-12 23:51:11,040 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-12 23:51:11,041 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-12 23:51:11,041 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-12 23:51:11,041 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-12 23:51:11,041 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-12 23:51:11,042 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-12 23:51:11,042 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-12 23:51:11,042 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-12 23:51:11,043 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-12 23:51:11,043 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-12 23:51:11,043 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-12 23:51:11,043 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-12 23:51:11,044 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9d4ec8e-3d8c-4efa-b6e5-2237832e296f/bin/utaipan-vmNK8stdcF/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9d4ec8e-3d8c-4efa-b6e5-2237832e296f/bin/utaipan-vmNK8stdcF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ab48078691743837960e369bd318845908490844fac300de97818a03fa84d8a1 [2021-11-12 23:51:11,317 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-12 23:51:11,348 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-12 23:51:11,352 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-12 23:51:11,353 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-12 23:51:11,354 INFO L275 PluginConnector]: CDTParser initialized [2021-11-12 23:51:11,355 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9d4ec8e-3d8c-4efa-b6e5-2237832e296f/bin/utaipan-vmNK8stdcF/../../sv-benchmarks/c/aws-c-common/aws_hash_byte_cursor_ptr_harness.i [2021-11-12 23:51:11,444 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9d4ec8e-3d8c-4efa-b6e5-2237832e296f/bin/utaipan-vmNK8stdcF/data/cd61952bd/eb91e380347b496a960dbf790275e28d/FLAG427b433be [2021-11-12 23:51:12,358 INFO L306 CDTParser]: Found 1 translation units. [2021-11-12 23:51:12,359 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9d4ec8e-3d8c-4efa-b6e5-2237832e296f/sv-benchmarks/c/aws-c-common/aws_hash_byte_cursor_ptr_harness.i [2021-11-12 23:51:12,401 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9d4ec8e-3d8c-4efa-b6e5-2237832e296f/bin/utaipan-vmNK8stdcF/data/cd61952bd/eb91e380347b496a960dbf790275e28d/FLAG427b433be [2021-11-12 23:51:12,763 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9d4ec8e-3d8c-4efa-b6e5-2237832e296f/bin/utaipan-vmNK8stdcF/data/cd61952bd/eb91e380347b496a960dbf790275e28d [2021-11-12 23:51:12,765 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-12 23:51:12,766 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-12 23:51:12,770 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-12 23:51:12,770 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-12 23:51:12,773 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-12 23:51:12,775 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 11:51:12" (1/1) ... [2021-11-12 23:51:12,777 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3b4c5b89 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:51:12, skipping insertion in model container [2021-11-12 23:51:12,777 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 11:51:12" (1/1) ... [2021-11-12 23:51:12,784 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-12 23:51:12,951 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-12 23:51:13,306 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9d4ec8e-3d8c-4efa-b6e5-2237832e296f/sv-benchmarks/c/aws-c-common/aws_hash_byte_cursor_ptr_harness.i[4498,4511] [2021-11-12 23:51:13,314 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9d4ec8e-3d8c-4efa-b6e5-2237832e296f/sv-benchmarks/c/aws-c-common/aws_hash_byte_cursor_ptr_harness.i[4558,4571] [2021-11-12 23:51:13,345 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-12 23:51:13,353 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-12 23:51:15,052 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:51:15,054 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:51:15,055 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:51:15,056 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:51:15,060 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:51:15,084 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:51:15,084 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:51:15,087 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:51:15,088 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:51:15,686 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-12 23:51:15,687 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-12 23:51:15,689 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-12 23:51:15,690 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-12 23:51:15,692 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-12 23:51:15,693 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-12 23:51:15,694 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-12 23:51:15,695 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-12 23:51:15,696 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-12 23:51:15,697 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-12 23:51:15,990 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-12 23:51:16,192 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:51:16,193 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:51:16,644 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:51:16,645 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:51:16,678 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:51:16,680 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:51:16,698 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:51:16,698 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:51:16,726 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:51:16,728 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:51:16,729 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:51:16,730 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:51:16,731 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:51:16,731 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:51:16,733 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:51:16,785 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 23:51:16,863 ERROR L326 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2021-11-12 23:51:16,864 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@e0b89a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:51:16, skipping insertion in model container [2021-11-12 23:51:16,864 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-12 23:51:16,864 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-12 23:51:16,867 INFO L158 Benchmark]: Toolchain (without parser) took 4099.44ms. Allocated memory was 100.7MB in the beginning and 130.0MB in the end (delta: 29.4MB). Free memory was 55.4MB in the beginning and 54.6MB in the end (delta: 790.4kB). Peak memory consumption was 26.6MB. Max. memory is 16.1GB. [2021-11-12 23:51:16,868 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 100.7MB. Free memory is still 53.9MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-12 23:51:16,870 INFO L158 Benchmark]: CACSL2BoogieTranslator took 4094.55ms. Allocated memory was 100.7MB in the beginning and 130.0MB in the end (delta: 29.4MB). Free memory was 55.3MB in the beginning and 54.6MB in the end (delta: 613.6kB). Peak memory consumption was 26.6MB. Max. memory is 16.1GB. [2021-11-12 23:51:16,872 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 100.7MB. Free memory is still 53.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 4094.55ms. Allocated memory was 100.7MB in the beginning and 130.0MB in the end (delta: 29.4MB). Free memory was 55.3MB in the beginning and 54.6MB in the end (delta: 613.6kB). Peak memory consumption was 26.6MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 7002]: Unsupported Syntax Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9d4ec8e-3d8c-4efa-b6e5-2237832e296f/bin/utaipan-vmNK8stdcF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9d4ec8e-3d8c-4efa-b6e5-2237832e296f/bin/utaipan-vmNK8stdcF/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9d4ec8e-3d8c-4efa-b6e5-2237832e296f/bin/utaipan-vmNK8stdcF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9d4ec8e-3d8c-4efa-b6e5-2237832e296f/bin/utaipan-vmNK8stdcF/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_hash_byte_cursor_ptr_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9d4ec8e-3d8c-4efa-b6e5-2237832e296f/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9d4ec8e-3d8c-4efa-b6e5-2237832e296f/bin/utaipan-vmNK8stdcF --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash ab48078691743837960e369bd318845908490844fac300de97818a03fa84d8a1 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-12 23:51:19,347 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-12 23:51:19,350 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-12 23:51:19,405 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-12 23:51:19,406 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-12 23:51:19,411 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-12 23:51:19,413 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-12 23:51:19,417 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-12 23:51:19,423 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-12 23:51:19,431 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-12 23:51:19,433 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-12 23:51:19,435 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-12 23:51:19,436 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-12 23:51:19,439 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-12 23:51:19,441 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-12 23:51:19,446 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-12 23:51:19,448 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-12 23:51:19,450 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-12 23:51:19,452 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-12 23:51:19,459 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-12 23:51:19,462 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-12 23:51:19,463 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-12 23:51:19,466 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-12 23:51:19,468 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-12 23:51:19,477 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-12 23:51:19,478 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-12 23:51:19,478 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-12 23:51:19,480 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-12 23:51:19,481 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-12 23:51:19,482 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-12 23:51:19,483 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-12 23:51:19,484 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-12 23:51:19,486 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-12 23:51:19,487 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-12 23:51:19,488 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-12 23:51:19,489 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-12 23:51:19,490 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-12 23:51:19,490 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-12 23:51:19,490 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-12 23:51:19,492 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-12 23:51:19,493 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-12 23:51:19,494 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9d4ec8e-3d8c-4efa-b6e5-2237832e296f/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2021-11-12 23:51:19,537 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-12 23:51:19,537 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-12 23:51:19,539 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-12 23:51:19,539 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-12 23:51:19,539 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-12 23:51:19,540 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-12 23:51:19,540 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-12 23:51:19,540 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-12 23:51:19,540 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-12 23:51:19,541 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-12 23:51:19,543 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-12 23:51:19,543 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-12 23:51:19,544 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-12 23:51:19,544 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-12 23:51:19,544 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-12 23:51:19,544 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-12 23:51:19,545 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-12 23:51:19,545 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-12 23:51:19,545 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-12 23:51:19,545 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-12 23:51:19,545 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-12 23:51:19,546 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-12 23:51:19,546 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-12 23:51:19,546 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-12 23:51:19,546 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-12 23:51:19,547 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-12 23:51:19,547 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-12 23:51:19,547 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-12 23:51:19,547 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-12 23:51:19,548 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-12 23:51:19,548 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-12 23:51:19,548 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-12 23:51:19,548 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-12 23:51:19,549 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9d4ec8e-3d8c-4efa-b6e5-2237832e296f/bin/utaipan-vmNK8stdcF/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9d4ec8e-3d8c-4efa-b6e5-2237832e296f/bin/utaipan-vmNK8stdcF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ab48078691743837960e369bd318845908490844fac300de97818a03fa84d8a1 [2021-11-12 23:51:19,993 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-12 23:51:20,018 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-12 23:51:20,020 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-12 23:51:20,021 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-12 23:51:20,022 INFO L275 PluginConnector]: CDTParser initialized [2021-11-12 23:51:20,023 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9d4ec8e-3d8c-4efa-b6e5-2237832e296f/bin/utaipan-vmNK8stdcF/../../sv-benchmarks/c/aws-c-common/aws_hash_byte_cursor_ptr_harness.i [2021-11-12 23:51:20,091 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9d4ec8e-3d8c-4efa-b6e5-2237832e296f/bin/utaipan-vmNK8stdcF/data/a0c1e134f/d9cc69570ec641629cafaebc637e4336/FLAG4cc883b03 [2021-11-12 23:51:21,134 INFO L306 CDTParser]: Found 1 translation units. [2021-11-12 23:51:21,135 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9d4ec8e-3d8c-4efa-b6e5-2237832e296f/sv-benchmarks/c/aws-c-common/aws_hash_byte_cursor_ptr_harness.i [2021-11-12 23:51:21,187 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9d4ec8e-3d8c-4efa-b6e5-2237832e296f/bin/utaipan-vmNK8stdcF/data/a0c1e134f/d9cc69570ec641629cafaebc637e4336/FLAG4cc883b03 [2021-11-12 23:51:21,536 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9d4ec8e-3d8c-4efa-b6e5-2237832e296f/bin/utaipan-vmNK8stdcF/data/a0c1e134f/d9cc69570ec641629cafaebc637e4336 [2021-11-12 23:51:21,539 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-12 23:51:21,540 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-12 23:51:21,542 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-12 23:51:21,543 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-12 23:51:21,547 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-12 23:51:21,548 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 11:51:21" (1/1) ... [2021-11-12 23:51:21,549 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@594706a0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:51:21, skipping insertion in model container [2021-11-12 23:51:21,549 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 11:51:21" (1/1) ... [2021-11-12 23:51:21,557 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-12 23:51:21,747 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-12 23:51:22,083 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9d4ec8e-3d8c-4efa-b6e5-2237832e296f/sv-benchmarks/c/aws-c-common/aws_hash_byte_cursor_ptr_harness.i[4498,4511] [2021-11-12 23:51:22,091 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9d4ec8e-3d8c-4efa-b6e5-2237832e296f/sv-benchmarks/c/aws-c-common/aws_hash_byte_cursor_ptr_harness.i[4558,4571] [2021-11-12 23:51:22,129 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-12 23:51:22,138 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-12 23:51:23,658 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:51:23,659 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:51:23,660 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:51:23,661 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:51:23,662 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:51:23,678 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:51:23,679 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:51:23,681 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:51:23,682 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:51:24,278 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-12 23:51:24,280 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-12 23:51:24,281 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-12 23:51:24,283 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-12 23:51:24,285 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-12 23:51:24,286 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-12 23:51:24,287 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-12 23:51:24,287 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-12 23:51:24,288 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-12 23:51:24,289 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-12 23:51:24,556 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-12 23:51:24,664 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:51:24,665 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:51:25,150 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:51:25,151 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:51:25,183 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:51:25,184 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:51:25,191 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:51:25,192 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:51:25,216 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:51:25,218 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:51:25,218 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:51:25,219 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:51:25,219 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:51:25,219 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:51:25,221 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:51:25,285 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 23:51:25,375 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-12 23:51:25,434 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-12 23:51:25,440 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9d4ec8e-3d8c-4efa-b6e5-2237832e296f/sv-benchmarks/c/aws-c-common/aws_hash_byte_cursor_ptr_harness.i[4498,4511] [2021-11-12 23:51:25,441 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9d4ec8e-3d8c-4efa-b6e5-2237832e296f/sv-benchmarks/c/aws-c-common/aws_hash_byte_cursor_ptr_harness.i[4558,4571] [2021-11-12 23:51:25,443 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-12 23:51:25,444 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-12 23:51:25,517 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:51:25,521 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:51:25,521 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:51:25,522 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:51:25,523 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:51:25,531 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:51:25,532 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:51:25,533 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:51:25,534 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:51:25,575 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-12 23:51:25,576 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-12 23:51:25,576 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-12 23:51:25,577 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-12 23:51:25,578 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-12 23:51:25,579 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-12 23:51:25,579 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-12 23:51:25,580 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-12 23:51:25,580 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-12 23:51:25,581 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-12 23:51:25,618 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-12 23:51:25,713 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:51:25,719 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:51:25,866 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:51:25,867 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:51:25,876 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:51:25,877 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:51:25,879 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:51:25,880 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:51:25,889 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:51:25,890 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:51:25,891 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:51:25,891 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:51:25,892 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:51:25,893 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:51:25,894 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:51:25,942 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 23:51:25,988 INFO L203 MainTranslator]: Completed pre-run [2021-11-12 23:51:26,015 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9d4ec8e-3d8c-4efa-b6e5-2237832e296f/sv-benchmarks/c/aws-c-common/aws_hash_byte_cursor_ptr_harness.i[4498,4511] [2021-11-12 23:51:26,016 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9d4ec8e-3d8c-4efa-b6e5-2237832e296f/sv-benchmarks/c/aws-c-common/aws_hash_byte_cursor_ptr_harness.i[4558,4571] [2021-11-12 23:51:26,018 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-12 23:51:26,019 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-12 23:51:26,069 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:51:26,069 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:51:26,070 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:51:26,071 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:51:26,071 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:51:26,077 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:51:26,078 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:51:26,079 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:51:26,080 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:51:26,111 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-12 23:51:26,112 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-12 23:51:26,113 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-12 23:51:26,114 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-12 23:51:26,114 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-12 23:51:26,116 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-12 23:51:26,117 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-12 23:51:26,117 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-12 23:51:26,119 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-12 23:51:26,120 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-12 23:51:26,171 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-12 23:51:26,225 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:51:26,226 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:51:26,360 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:51:26,360 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:51:26,384 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:51:26,385 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:51:26,388 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:51:26,388 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:51:26,413 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:51:26,414 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:51:26,415 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:51:26,415 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:51:26,416 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:51:26,416 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:51:26,416 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:51:26,479 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 23:51:26,837 INFO L208 MainTranslator]: Completed translation [2021-11-12 23:51:26,838 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:51:26 WrapperNode [2021-11-12 23:51:26,838 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-12 23:51:26,839 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-12 23:51:26,839 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-12 23:51:26,839 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-12 23:51:26,847 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:51:26" (1/1) ... [2021-11-12 23:51:26,981 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:51:26" (1/1) ... [2021-11-12 23:51:27,070 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-12 23:51:27,071 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-12 23:51:27,071 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-12 23:51:27,071 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-12 23:51:27,080 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:51:26" (1/1) ... [2021-11-12 23:51:27,081 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:51:26" (1/1) ... [2021-11-12 23:51:27,102 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:51:26" (1/1) ... [2021-11-12 23:51:27,103 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:51:26" (1/1) ... [2021-11-12 23:51:27,167 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:51:26" (1/1) ... [2021-11-12 23:51:27,175 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:51:26" (1/1) ... [2021-11-12 23:51:27,191 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:51:26" (1/1) ... [2021-11-12 23:51:27,222 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-12 23:51:27,223 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-12 23:51:27,223 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-12 23:51:27,224 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-12 23:51:27,224 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:51:26" (1/1) ... [2021-11-12 23:51:27,231 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-12 23:51:27,249 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9d4ec8e-3d8c-4efa-b6e5-2237832e296f/bin/utaipan-vmNK8stdcF/z3 [2021-11-12 23:51:27,272 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9d4ec8e-3d8c-4efa-b6e5-2237832e296f/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-12 23:51:27,302 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9d4ec8e-3d8c-4efa-b6e5-2237832e296f/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-12 23:51:27,323 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2021-11-12 23:51:27,324 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2021-11-12 23:51:27,324 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-11-12 23:51:27,324 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-11-12 23:51:27,324 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-12 23:51:27,326 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-12 23:51:27,326 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-12 23:51:27,326 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-12 23:51:27,327 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2021-11-12 23:51:27,338 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2021-11-12 23:51:27,338 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-12 23:51:27,338 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-12 23:51:27,338 INFO L130 BoogieDeclarations]: Found specification of procedure hashlittle2 [2021-11-12 23:51:27,338 INFO L138 BoogieDeclarations]: Found implementation of procedure hashlittle2 [2021-11-12 23:51:27,339 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_cursor_is_valid [2021-11-12 23:51:27,339 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_cursor_is_valid [2021-11-12 23:51:27,339 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-12 23:51:27,339 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-12 23:51:27,339 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-12 23:51:27,339 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-12 23:51:27,339 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-11-12 23:51:27,340 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-12 23:51:27,340 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2021-11-12 23:51:27,340 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-11-12 23:51:27,340 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-11-12 23:51:27,340 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-12 23:51:27,340 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-12 23:51:44,876 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##8: assume !true; [2021-11-12 23:51:44,913 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-12 23:51:44,914 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2021-11-12 23:51:44,916 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 11:51:44 BoogieIcfgContainer [2021-11-12 23:51:44,916 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-12 23:51:44,918 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-12 23:51:44,918 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-12 23:51:44,921 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-12 23:51:44,921 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 11:51:21" (1/3) ... [2021-11-12 23:51:44,922 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@681367e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 11:51:44, skipping insertion in model container [2021-11-12 23:51:44,922 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:51:26" (2/3) ... [2021-11-12 23:51:44,923 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@681367e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 11:51:44, skipping insertion in model container [2021-11-12 23:51:44,923 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 11:51:44" (3/3) ... [2021-11-12 23:51:44,924 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_hash_byte_cursor_ptr_harness.i [2021-11-12 23:51:44,931 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-12 23:51:44,931 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-12 23:51:45,039 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-12 23:51:45,044 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-12 23:51:45,045 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-12 23:51:45,072 INFO L276 IsEmpty]: Start isEmpty. Operand has 134 states, 114 states have (on average 1.5087719298245614) internal successors, (172), 114 states have internal predecessors, (172), 13 states have call successors, (13), 6 states have call predecessors, (13), 6 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2021-11-12 23:51:45,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2021-11-12 23:51:45,082 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:51:45,083 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:51:45,084 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 23:51:45,089 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:51:45,089 INFO L85 PathProgramCache]: Analyzing trace with hash -1196197405, now seen corresponding path program 1 times [2021-11-12 23:51:45,111 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:51:45,111 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1091868772] [2021-11-12 23:51:45,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:51:45,112 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:51:45,113 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9d4ec8e-3d8c-4efa-b6e5-2237832e296f/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:51:45,118 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9d4ec8e-3d8c-4efa-b6e5-2237832e296f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:51:45,150 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9d4ec8e-3d8c-4efa-b6e5-2237832e296f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-12 23:51:49,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:51:49,710 INFO L263 TraceCheckSpWp]: Trace formula consists of 1827 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-12 23:51:49,720 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:51:49,972 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-12 23:51:49,973 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:51:50,166 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2021-11-12 23:51:50,166 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:51:50,167 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1091868772] [2021-11-12 23:51:50,167 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1091868772] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-12 23:51:50,167 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-12 23:51:50,167 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2021-11-12 23:51:50,169 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [22985530] [2021-11-12 23:51:50,170 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 23:51:50,174 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-12 23:51:50,174 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:51:50,201 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-12 23:51:50,202 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-12 23:51:50,204 INFO L87 Difference]: Start difference. First operand has 134 states, 114 states have (on average 1.5087719298245614) internal successors, (172), 114 states have internal predecessors, (172), 13 states have call successors, (13), 6 states have call predecessors, (13), 6 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) Second operand has 2 states, 2 states have (on average 19.5) internal successors, (39), 2 states have internal predecessors, (39), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2021-11-12 23:51:50,242 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:51:50,242 INFO L93 Difference]: Finished difference Result 263 states and 398 transitions. [2021-11-12 23:51:50,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-12 23:51:50,244 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 19.5) internal successors, (39), 2 states have internal predecessors, (39), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 62 [2021-11-12 23:51:50,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:51:50,255 INFO L225 Difference]: With dead ends: 263 [2021-11-12 23:51:50,256 INFO L226 Difference]: Without dead ends: 128 [2021-11-12 23:51:50,261 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 122 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-12 23:51:50,264 INFO L933 BasicCegarLoop]: 191 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.00ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 191 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.33ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.00ms IncrementalHoareTripleChecker+Time [2021-11-12 23:51:50,265 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 191 Invalid, 0 Unknown, 0 Unchecked, 2.33ms Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.00ms Time] [2021-11-12 23:51:50,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128 states. [2021-11-12 23:51:50,311 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 128. [2021-11-12 23:51:50,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 128 states, 108 states have (on average 1.4907407407407407) internal successors, (161), 109 states have internal predecessors, (161), 13 states have call successors, (13), 6 states have call predecessors, (13), 6 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2021-11-12 23:51:50,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 186 transitions. [2021-11-12 23:51:50,317 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 186 transitions. Word has length 62 [2021-11-12 23:51:50,318 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:51:50,318 INFO L470 AbstractCegarLoop]: Abstraction has 128 states and 186 transitions. [2021-11-12 23:51:50,318 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 19.5) internal successors, (39), 2 states have internal predecessors, (39), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2021-11-12 23:51:50,319 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 186 transitions. [2021-11-12 23:51:50,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2021-11-12 23:51:50,323 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:51:50,323 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:51:50,376 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9d4ec8e-3d8c-4efa-b6e5-2237832e296f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-12 23:51:50,550 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9d4ec8e-3d8c-4efa-b6e5-2237832e296f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:51:50,550 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 23:51:50,551 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:51:50,551 INFO L85 PathProgramCache]: Analyzing trace with hash -902599839, now seen corresponding path program 1 times [2021-11-12 23:51:50,555 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:51:50,556 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1295780463] [2021-11-12 23:51:50,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:51:50,556 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:51:50,556 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9d4ec8e-3d8c-4efa-b6e5-2237832e296f/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:51:50,558 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9d4ec8e-3d8c-4efa-b6e5-2237832e296f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:51:50,593 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9d4ec8e-3d8c-4efa-b6e5-2237832e296f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-12 23:51:54,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:51:54,933 INFO L263 TraceCheckSpWp]: Trace formula consists of 1827 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-12 23:51:54,940 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:51:55,326 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-12 23:51:55,327 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:51:55,834 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2021-11-12 23:51:55,834 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:51:55,835 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1295780463] [2021-11-12 23:51:55,835 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1295780463] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-12 23:51:55,835 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-12 23:51:55,835 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 5 [2021-11-12 23:51:55,835 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [801930742] [2021-11-12 23:51:55,835 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 23:51:55,837 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-12 23:51:55,837 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:51:55,837 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-12 23:51:55,838 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-12 23:51:55,838 INFO L87 Difference]: Start difference. First operand 128 states and 186 transitions. Second operand has 5 states, 5 states have (on average 7.6) internal successors, (38), 5 states have internal predecessors, (38), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2021-11-12 23:51:55,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:51:55,985 INFO L93 Difference]: Finished difference Result 239 states and 354 transitions. [2021-11-12 23:51:55,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-12 23:51:55,986 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 5 states have internal predecessors, (38), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 62 [2021-11-12 23:51:55,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:51:55,996 INFO L225 Difference]: With dead ends: 239 [2021-11-12 23:51:55,998 INFO L226 Difference]: Without dead ends: 131 [2021-11-12 23:51:55,999 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 119 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-12 23:51:56,003 INFO L933 BasicCegarLoop]: 180 mSDtfsCounter, 22 mSDsluCounter, 333 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 78.72ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 513 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 5.12ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 109.61ms IncrementalHoareTripleChecker+Time [2021-11-12 23:51:56,004 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [33 Valid, 513 Invalid, 21 Unknown, 0 Unchecked, 5.12ms Time], IncrementalHoareTripleChecker [1 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 109.61ms Time] [2021-11-12 23:51:56,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states. [2021-11-12 23:51:56,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 131. [2021-11-12 23:51:56,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 131 states, 110 states have (on average 1.481818181818182) internal successors, (163), 112 states have internal predecessors, (163), 13 states have call successors, (13), 6 states have call predecessors, (13), 7 states have return successors, (14), 12 states have call predecessors, (14), 12 states have call successors, (14) [2021-11-12 23:51:56,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 131 states and 190 transitions. [2021-11-12 23:51:56,039 INFO L78 Accepts]: Start accepts. Automaton has 131 states and 190 transitions. Word has length 62 [2021-11-12 23:51:56,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:51:56,039 INFO L470 AbstractCegarLoop]: Abstraction has 131 states and 190 transitions. [2021-11-12 23:51:56,040 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 5 states have internal predecessors, (38), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2021-11-12 23:51:56,040 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states and 190 transitions. [2021-11-12 23:51:56,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2021-11-12 23:51:56,049 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:51:56,050 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:51:56,106 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9d4ec8e-3d8c-4efa-b6e5-2237832e296f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-12 23:51:56,266 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9d4ec8e-3d8c-4efa-b6e5-2237832e296f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:51:56,266 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 23:51:56,267 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:51:56,267 INFO L85 PathProgramCache]: Analyzing trace with hash 90546502, now seen corresponding path program 1 times [2021-11-12 23:51:56,270 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:51:56,271 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [963323159] [2021-11-12 23:51:56,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:51:56,272 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:51:56,273 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9d4ec8e-3d8c-4efa-b6e5-2237832e296f/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:51:56,273 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9d4ec8e-3d8c-4efa-b6e5-2237832e296f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:51:56,275 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9d4ec8e-3d8c-4efa-b6e5-2237832e296f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-12 23:52:00,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:52:00,711 INFO L263 TraceCheckSpWp]: Trace formula consists of 1831 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-12 23:52:00,718 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:52:01,197 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-11-12 23:52:01,197 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:52:01,681 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 4 proven. 4 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2021-11-12 23:52:01,681 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:52:01,681 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [963323159] [2021-11-12 23:52:01,681 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [963323159] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-12 23:52:01,681 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-12 23:52:01,682 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 6 [2021-11-12 23:52:01,682 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2104890977] [2021-11-12 23:52:01,682 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 23:52:01,682 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-12 23:52:01,683 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:52:01,683 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-12 23:52:01,683 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-11-12 23:52:01,683 INFO L87 Difference]: Start difference. First operand 131 states and 190 transitions. Second operand has 6 states, 5 states have (on average 8.8) internal successors, (44), 6 states have internal predecessors, (44), 3 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 3 states have call successors, (8) [2021-11-12 23:52:01,887 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:52:01,887 INFO L93 Difference]: Finished difference Result 239 states and 350 transitions. [2021-11-12 23:52:01,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-12 23:52:01,891 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 8.8) internal successors, (44), 6 states have internal predecessors, (44), 3 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 3 states have call successors, (8) Word has length 64 [2021-11-12 23:52:01,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:52:01,893 INFO L225 Difference]: With dead ends: 239 [2021-11-12 23:52:01,893 INFO L226 Difference]: Without dead ends: 131 [2021-11-12 23:52:01,897 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 122 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-11-12 23:52:01,898 INFO L933 BasicCegarLoop]: 180 mSDtfsCounter, 26 mSDsluCounter, 505 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 121.59ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 685 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 4.11ms SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 157.02ms IncrementalHoareTripleChecker+Time [2021-11-12 23:52:01,899 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [27 Valid, 685 Invalid, 37 Unknown, 0 Unchecked, 4.11ms Time], IncrementalHoareTripleChecker [14 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 157.02ms Time] [2021-11-12 23:52:01,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states. [2021-11-12 23:52:01,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 131. [2021-11-12 23:52:01,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 131 states, 110 states have (on average 1.481818181818182) internal successors, (163), 112 states have internal predecessors, (163), 13 states have call successors, (13), 6 states have call predecessors, (13), 7 states have return successors, (13), 12 states have call predecessors, (13), 12 states have call successors, (13) [2021-11-12 23:52:01,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 131 states and 189 transitions. [2021-11-12 23:52:01,922 INFO L78 Accepts]: Start accepts. Automaton has 131 states and 189 transitions. Word has length 64 [2021-11-12 23:52:01,922 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:52:01,923 INFO L470 AbstractCegarLoop]: Abstraction has 131 states and 189 transitions. [2021-11-12 23:52:01,923 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 8.8) internal successors, (44), 6 states have internal predecessors, (44), 3 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 3 states have call successors, (8) [2021-11-12 23:52:01,923 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states and 189 transitions. [2021-11-12 23:52:01,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2021-11-12 23:52:01,928 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:52:01,929 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:52:01,987 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9d4ec8e-3d8c-4efa-b6e5-2237832e296f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-12 23:52:02,129 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9d4ec8e-3d8c-4efa-b6e5-2237832e296f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:52:02,130 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 23:52:02,130 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:52:02,130 INFO L85 PathProgramCache]: Analyzing trace with hash -249804501, now seen corresponding path program 2 times [2021-11-12 23:52:02,134 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:52:02,135 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1925467221] [2021-11-12 23:52:02,135 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-12 23:52:02,135 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:52:02,135 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9d4ec8e-3d8c-4efa-b6e5-2237832e296f/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:52:02,136 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9d4ec8e-3d8c-4efa-b6e5-2237832e296f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:52:02,137 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9d4ec8e-3d8c-4efa-b6e5-2237832e296f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process