./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_byte_buf_init_copy_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 47ea0209 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf0e3a58-6672-469c-a775-ef2c23756683/bin/utaipan-UUZaoUuFF8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf0e3a58-6672-469c-a775-ef2c23756683/bin/utaipan-UUZaoUuFF8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf0e3a58-6672-469c-a775-ef2c23756683/bin/utaipan-UUZaoUuFF8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf0e3a58-6672-469c-a775-ef2c23756683/bin/utaipan-UUZaoUuFF8/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_byte_buf_init_copy_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf0e3a58-6672-469c-a775-ef2c23756683/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf0e3a58-6672-469c-a775-ef2c23756683/bin/utaipan-UUZaoUuFF8 --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 9248d62da968900adf628e209d21739bec2ffe4f64c1d45016706037787190a6 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-47ea020 [2021-11-07 01:32:51,733 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 01:32:51,737 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 01:32:51,793 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 01:32:51,793 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 01:32:51,795 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 01:32:51,798 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 01:32:51,801 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 01:32:51,805 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 01:32:51,806 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 01:32:51,808 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 01:32:51,810 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 01:32:51,811 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 01:32:51,813 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 01:32:51,816 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 01:32:51,818 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 01:32:51,820 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 01:32:51,822 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 01:32:51,825 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 01:32:51,829 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 01:32:51,832 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 01:32:51,837 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 01:32:51,839 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 01:32:51,841 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 01:32:51,846 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 01:32:51,846 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 01:32:51,857 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 01:32:51,860 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 01:32:51,861 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 01:32:51,863 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 01:32:51,863 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 01:32:51,865 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 01:32:51,868 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 01:32:51,870 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 01:32:51,873 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 01:32:51,873 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 01:32:51,874 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 01:32:51,875 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 01:32:51,875 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 01:32:51,877 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 01:32:51,878 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 01:32:51,879 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf0e3a58-6672-469c-a775-ef2c23756683/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-07 01:32:51,943 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 01:32:51,944 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 01:32:51,946 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-07 01:32:51,946 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-07 01:32:51,947 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-07 01:32:51,947 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-07 01:32:51,947 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-07 01:32:51,947 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-07 01:32:51,948 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-07 01:32:51,948 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-07 01:32:51,949 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-07 01:32:51,950 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-07 01:32:51,950 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-07 01:32:51,951 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-07 01:32:51,951 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-07 01:32:51,952 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 01:32:51,953 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-07 01:32:51,953 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 01:32:51,953 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 01:32:51,954 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 01:32:51,954 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 01:32:51,954 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-07 01:32:51,955 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 01:32:51,955 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 01:32:51,955 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 01:32:51,955 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 01:32:51,956 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 01:32:51,956 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 01:32:51,956 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 01:32:51,957 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 01:32:51,957 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 01:32:51,957 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-07 01:32:51,958 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-07 01:32:51,958 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 01:32:51,958 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 01:32:51,959 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-07 01:32:51,959 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_bf0e3a58-6672-469c-a775-ef2c23756683/bin/utaipan-UUZaoUuFF8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf0e3a58-6672-469c-a775-ef2c23756683/bin/utaipan-UUZaoUuFF8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9248d62da968900adf628e209d21739bec2ffe4f64c1d45016706037787190a6 [2021-11-07 01:32:52,275 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 01:32:52,309 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 01:32:52,312 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 01:32:52,315 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 01:32:52,316 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 01:32:52,317 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf0e3a58-6672-469c-a775-ef2c23756683/bin/utaipan-UUZaoUuFF8/../../sv-benchmarks/c/aws-c-common/aws_byte_buf_init_copy_harness.i [2021-11-07 01:32:52,430 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf0e3a58-6672-469c-a775-ef2c23756683/bin/utaipan-UUZaoUuFF8/data/ed411a776/6b8738b37a0f4c14a5e7d23db0f274cc/FLAG6896de649 [2021-11-07 01:32:53,502 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 01:32:53,503 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf0e3a58-6672-469c-a775-ef2c23756683/sv-benchmarks/c/aws-c-common/aws_byte_buf_init_copy_harness.i [2021-11-07 01:32:53,548 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf0e3a58-6672-469c-a775-ef2c23756683/bin/utaipan-UUZaoUuFF8/data/ed411a776/6b8738b37a0f4c14a5e7d23db0f274cc/FLAG6896de649 [2021-11-07 01:32:53,927 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf0e3a58-6672-469c-a775-ef2c23756683/bin/utaipan-UUZaoUuFF8/data/ed411a776/6b8738b37a0f4c14a5e7d23db0f274cc [2021-11-07 01:32:53,930 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 01:32:53,931 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 01:32:53,933 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 01:32:53,933 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 01:32:53,937 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 01:32:53,938 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:32:53" (1/1) ... [2021-11-07 01:32:53,944 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@621aae3e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:32:53, skipping insertion in model container [2021-11-07 01:32:53,944 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:32:53" (1/1) ... [2021-11-07 01:32:53,953 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 01:32:54,091 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 01:32:54,539 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_bf0e3a58-6672-469c-a775-ef2c23756683/sv-benchmarks/c/aws-c-common/aws_byte_buf_init_copy_harness.i[4496,4509] [2021-11-07 01:32:54,549 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_bf0e3a58-6672-469c-a775-ef2c23756683/sv-benchmarks/c/aws-c-common/aws_byte_buf_init_copy_harness.i[4556,4569] [2021-11-07 01:32:54,586 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-07 01:32:54,594 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-07 01:32:55,736 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:32:55,737 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:32:55,737 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:32:55,738 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:32:55,740 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:32:55,755 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:32:55,756 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:32:55,758 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:32:55,759 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:32:56,262 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-07 01:32:56,264 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-07 01:32:56,265 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-07 01:32:56,267 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-07 01:32:56,269 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-07 01:32:56,271 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-07 01:32:56,272 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-07 01:32:56,273 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-07 01:32:56,274 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-07 01:32:56,275 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-07 01:32:56,550 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-07 01:32:56,699 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:32:56,710 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:32:56,833 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 01:32:56,890 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) [2021-11-07 01:32:56,891 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@dd3dae3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:32:56, skipping insertion in model container [2021-11-07 01:32:56,891 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 01:32:56,892 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-07 01:32:56,897 INFO L168 Benchmark]: Toolchain (without parser) took 2961.84 ms. Allocated memory is still 109.1 MB. Free memory was 82.3 MB in the beginning and 58.1 MB in the end (delta: 24.2 MB). Peak memory consumption was 33.6 MB. Max. memory is 16.1 GB. [2021-11-07 01:32:56,898 INFO L168 Benchmark]: CDTParser took 0.33 ms. Allocated memory is still 88.1 MB. Free memory was 58.1 MB in the beginning and 58.1 MB in the end (delta: 28.2 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-07 01:32:56,900 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2958.93 ms. Allocated memory is still 109.1 MB. Free memory was 81.9 MB in the beginning and 58.1 MB in the end (delta: 23.8 MB). Peak memory consumption was 33.6 MB. Max. memory is 16.1 GB. [2021-11-07 01:32:56,904 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33 ms. Allocated memory is still 88.1 MB. Free memory was 58.1 MB in the beginning and 58.1 MB in the end (delta: 28.2 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 2958.93 ms. Allocated memory is still 109.1 MB. Free memory was 81.9 MB in the beginning and 58.1 MB in the end (delta: 23.8 MB). Peak memory consumption was 33.6 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 6990]: 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_bf0e3a58-6672-469c-a775-ef2c23756683/bin/utaipan-UUZaoUuFF8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf0e3a58-6672-469c-a775-ef2c23756683/bin/utaipan-UUZaoUuFF8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf0e3a58-6672-469c-a775-ef2c23756683/bin/utaipan-UUZaoUuFF8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf0e3a58-6672-469c-a775-ef2c23756683/bin/utaipan-UUZaoUuFF8/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_byte_buf_init_copy_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf0e3a58-6672-469c-a775-ef2c23756683/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf0e3a58-6672-469c-a775-ef2c23756683/bin/utaipan-UUZaoUuFF8 --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 9248d62da968900adf628e209d21739bec2ffe4f64c1d45016706037787190a6 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-47ea020 [2021-11-07 01:32:59,789 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 01:32:59,792 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 01:32:59,832 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 01:32:59,832 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 01:32:59,838 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 01:32:59,841 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 01:32:59,851 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 01:32:59,855 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 01:32:59,863 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 01:32:59,864 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 01:32:59,865 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 01:32:59,866 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 01:32:59,867 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 01:32:59,869 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 01:32:59,876 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 01:32:59,878 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 01:32:59,880 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 01:32:59,886 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 01:32:59,898 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 01:32:59,900 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 01:32:59,902 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 01:32:59,906 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 01:32:59,909 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 01:32:59,920 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 01:32:59,920 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 01:32:59,921 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 01:32:59,923 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 01:32:59,924 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 01:32:59,926 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 01:32:59,927 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 01:32:59,928 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 01:32:59,931 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 01:32:59,932 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 01:32:59,934 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 01:32:59,935 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 01:32:59,936 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 01:32:59,936 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 01:32:59,936 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 01:32:59,939 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 01:32:59,940 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 01:32:59,946 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf0e3a58-6672-469c-a775-ef2c23756683/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2021-11-07 01:33:00,001 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 01:33:00,001 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 01:33:00,004 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-07 01:33:00,005 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-07 01:33:00,005 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-07 01:33:00,005 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-07 01:33:00,006 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-07 01:33:00,006 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-07 01:33:00,006 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-07 01:33:00,008 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 01:33:00,010 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 01:33:00,010 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 01:33:00,010 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 01:33:00,011 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 01:33:00,011 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-07 01:33:00,011 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-07 01:33:00,011 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-07 01:33:00,012 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 01:33:00,012 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 01:33:00,012 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 01:33:00,012 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 01:33:00,013 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-07 01:33:00,013 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 01:33:00,013 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 01:33:00,013 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 01:33:00,014 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 01:33:00,014 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 01:33:00,014 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-07 01:33:00,015 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-07 01:33:00,015 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 01:33:00,015 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 01:33:00,016 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-07 01:33:00,016 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_bf0e3a58-6672-469c-a775-ef2c23756683/bin/utaipan-UUZaoUuFF8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf0e3a58-6672-469c-a775-ef2c23756683/bin/utaipan-UUZaoUuFF8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9248d62da968900adf628e209d21739bec2ffe4f64c1d45016706037787190a6 [2021-11-07 01:33:00,509 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 01:33:00,543 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 01:33:00,547 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 01:33:00,549 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 01:33:00,550 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 01:33:00,551 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf0e3a58-6672-469c-a775-ef2c23756683/bin/utaipan-UUZaoUuFF8/../../sv-benchmarks/c/aws-c-common/aws_byte_buf_init_copy_harness.i [2021-11-07 01:33:00,641 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf0e3a58-6672-469c-a775-ef2c23756683/bin/utaipan-UUZaoUuFF8/data/b88e2ac77/ff86e20f9d954d7ebe74680d8fd57865/FLAG22de06ba0 [2021-11-07 01:33:01,854 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 01:33:01,855 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf0e3a58-6672-469c-a775-ef2c23756683/sv-benchmarks/c/aws-c-common/aws_byte_buf_init_copy_harness.i [2021-11-07 01:33:01,916 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf0e3a58-6672-469c-a775-ef2c23756683/bin/utaipan-UUZaoUuFF8/data/b88e2ac77/ff86e20f9d954d7ebe74680d8fd57865/FLAG22de06ba0 [2021-11-07 01:33:02,149 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf0e3a58-6672-469c-a775-ef2c23756683/bin/utaipan-UUZaoUuFF8/data/b88e2ac77/ff86e20f9d954d7ebe74680d8fd57865 [2021-11-07 01:33:02,152 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 01:33:02,153 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 01:33:02,155 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 01:33:02,156 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 01:33:02,160 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 01:33:02,161 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:33:02" (1/1) ... [2021-11-07 01:33:02,162 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7627e268 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:33:02, skipping insertion in model container [2021-11-07 01:33:02,163 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:33:02" (1/1) ... [2021-11-07 01:33:02,172 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 01:33:02,382 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 01:33:02,796 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_bf0e3a58-6672-469c-a775-ef2c23756683/sv-benchmarks/c/aws-c-common/aws_byte_buf_init_copy_harness.i[4496,4509] [2021-11-07 01:33:02,805 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_bf0e3a58-6672-469c-a775-ef2c23756683/sv-benchmarks/c/aws-c-common/aws_byte_buf_init_copy_harness.i[4556,4569] [2021-11-07 01:33:02,838 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-07 01:33:02,846 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-07 01:33:04,199 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:33:04,201 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:33:04,204 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:33:04,205 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:33:04,209 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:33:04,260 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:33:04,261 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:33:04,264 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:33:04,265 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:33:04,837 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-07 01:33:04,839 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-07 01:33:04,841 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-07 01:33:04,842 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-07 01:33:04,845 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-07 01:33:04,846 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-07 01:33:04,847 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-07 01:33:04,848 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-07 01:33:04,849 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-07 01:33:04,851 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-07 01:33:05,106 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-07 01:33:05,352 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:33:05,355 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:33:05,471 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 01:33:05,584 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-07 01:33:05,703 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 01:33:05,710 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_bf0e3a58-6672-469c-a775-ef2c23756683/sv-benchmarks/c/aws-c-common/aws_byte_buf_init_copy_harness.i[4496,4509] [2021-11-07 01:33:05,711 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_bf0e3a58-6672-469c-a775-ef2c23756683/sv-benchmarks/c/aws-c-common/aws_byte_buf_init_copy_harness.i[4556,4569] [2021-11-07 01:33:05,713 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-07 01:33:05,713 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-07 01:33:05,765 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:33:05,766 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:33:05,767 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:33:05,767 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:33:05,769 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:33:05,792 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:33:05,792 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:33:05,794 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:33:05,794 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:33:05,900 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-07 01:33:05,901 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-07 01:33:05,902 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-07 01:33:05,903 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-07 01:33:05,919 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-07 01:33:05,920 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-07 01:33:05,920 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-07 01:33:05,921 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-07 01:33:05,921 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-07 01:33:05,922 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-07 01:33:05,996 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-07 01:33:06,068 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:33:06,101 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:33:06,161 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 01:33:06,194 INFO L203 MainTranslator]: Completed pre-run [2021-11-07 01:33:06,209 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_bf0e3a58-6672-469c-a775-ef2c23756683/sv-benchmarks/c/aws-c-common/aws_byte_buf_init_copy_harness.i[4496,4509] [2021-11-07 01:33:06,210 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_bf0e3a58-6672-469c-a775-ef2c23756683/sv-benchmarks/c/aws-c-common/aws_byte_buf_init_copy_harness.i[4556,4569] [2021-11-07 01:33:06,211 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-07 01:33:06,212 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-07 01:33:06,245 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:33:06,246 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:33:06,246 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:33:06,247 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:33:06,248 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:33:06,253 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:33:06,254 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:33:06,255 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:33:06,255 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:33:06,304 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-07 01:33:06,305 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-07 01:33:06,306 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-07 01:33:06,307 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-07 01:33:06,307 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-07 01:33:06,308 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-07 01:33:06,309 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-07 01:33:06,309 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-07 01:33:06,310 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-07 01:33:06,310 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-07 01:33:06,329 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-07 01:33:06,415 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:33:06,415 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:33:06,473 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 01:33:06,837 INFO L208 MainTranslator]: Completed translation [2021-11-07 01:33:06,838 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:33:06 WrapperNode [2021-11-07 01:33:06,838 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 01:33:06,839 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-07 01:33:06,839 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-07 01:33:06,839 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-07 01:33:06,848 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:33:06" (1/1) ... [2021-11-07 01:33:07,005 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:33:06" (1/1) ... [2021-11-07 01:33:07,141 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-07 01:33:07,142 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-07 01:33:07,142 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-07 01:33:07,143 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-07 01:33:07,154 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:33:06" (1/1) ... [2021-11-07 01:33:07,155 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:33:06" (1/1) ... [2021-11-07 01:33:07,169 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:33:06" (1/1) ... [2021-11-07 01:33:07,170 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:33:06" (1/1) ... [2021-11-07 01:33:07,234 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:33:06" (1/1) ... [2021-11-07 01:33:07,272 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:33:06" (1/1) ... [2021-11-07 01:33:07,331 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:33:06" (1/1) ... [2021-11-07 01:33:07,368 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-07 01:33:07,369 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-07 01:33:07,369 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-07 01:33:07,370 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-07 01:33:07,371 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:33:06" (1/1) ... [2021-11-07 01:33:07,381 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 01:33:07,396 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf0e3a58-6672-469c-a775-ef2c23756683/bin/utaipan-UUZaoUuFF8/z3 [2021-11-07 01:33:07,411 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf0e3a58-6672-469c-a775-ef2c23756683/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-07 01:33:07,418 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf0e3a58-6672-469c-a775-ef2c23756683/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-07 01:33:07,468 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-07 01:33:07,469 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-07 01:33:07,469 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-07 01:33:07,469 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-07 01:33:07,469 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-07 01:33:07,469 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-07 01:33:07,469 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-07 01:33:07,470 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-07 01:33:07,470 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-11-07 01:33:07,470 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-07 01:33:07,471 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-07 01:33:07,472 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-11-07 01:33:07,472 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-11-07 01:33:07,472 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-07 01:33:27,325 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-07 01:33:27,329 INFO L299 CfgBuilder]: Removed 135 assume(true) statements. [2021-11-07 01:33:27,334 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 01:33:27 BoogieIcfgContainer [2021-11-07 01:33:27,334 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-07 01:33:27,337 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-07 01:33:27,338 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-07 01:33:27,341 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-07 01:33:27,342 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 01:33:02" (1/3) ... [2021-11-07 01:33:27,343 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52e6a2a4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 01:33:27, skipping insertion in model container [2021-11-07 01:33:27,343 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:33:06" (2/3) ... [2021-11-07 01:33:27,345 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52e6a2a4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 01:33:27, skipping insertion in model container [2021-11-07 01:33:27,345 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 01:33:27" (3/3) ... [2021-11-07 01:33:27,347 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_byte_buf_init_copy_harness.i [2021-11-07 01:33:27,355 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-07 01:33:27,355 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 11 error locations. [2021-11-07 01:33:27,437 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-07 01:33:27,450 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 [2021-11-07 01:33:27,451 INFO L340 AbstractCegarLoop]: Starting to check reachability of 11 error locations. [2021-11-07 01:33:27,477 INFO L276 IsEmpty]: Start isEmpty. Operand has 226 states, 214 states have (on average 1.4672897196261683) internal successors, (314), 225 states have internal predecessors, (314), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:33:27,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-11-07 01:33:27,486 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:33:27,486 INFO L513 BasicCegarLoop]: trace histogram [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] [2021-11-07 01:33:27,487 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-07 01:33:27,494 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:33:27,494 INFO L85 PathProgramCache]: Analyzing trace with hash 177948251, now seen corresponding path program 1 times [2021-11-07 01:33:27,527 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:33:27,528 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1532764899] [2021-11-07 01:33:27,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:33:27,529 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:33:27,530 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf0e3a58-6672-469c-a775-ef2c23756683/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:33:27,533 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf0e3a58-6672-469c-a775-ef2c23756683/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:33:27,555 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf0e3a58-6672-469c-a775-ef2c23756683/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-07 01:33:32,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:33:32,574 INFO L263 TraceCheckSpWp]: Trace formula consists of 1783 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-07 01:33:32,584 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:33:32,807 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:33:32,808 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:33:32,976 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:33:32,977 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:33:32,978 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1532764899] [2021-11-07 01:33:32,979 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1532764899] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:33:32,979 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:33:32,979 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-07 01:33:32,981 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [64067663] [2021-11-07 01:33:32,988 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-07 01:33:32,988 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:33:33,003 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-07 01:33:33,004 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-07 01:33:33,008 INFO L87 Difference]: Start difference. First operand has 226 states, 214 states have (on average 1.4672897196261683) internal successors, (314), 225 states have internal predecessors, (314), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 18.0) internal successors, (36), 2 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:33:33,084 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:33:33,085 INFO L93 Difference]: Finished difference Result 448 states and 623 transitions. [2021-11-07 01:33:33,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-07 01:33:33,087 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 18.0) internal successors, (36), 2 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 36 [2021-11-07 01:33:33,087 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:33:33,106 INFO L225 Difference]: With dead ends: 448 [2021-11-07 01:33:33,106 INFO L226 Difference]: Without dead ends: 219 [2021-11-07 01:33:33,113 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 70 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-07 01:33:33,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 219 states. [2021-11-07 01:33:33,152 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 219 to 219. [2021-11-07 01:33:33,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 219 states, 208 states have (on average 1.3076923076923077) internal successors, (272), 218 states have internal predecessors, (272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:33:33,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 219 states to 219 states and 272 transitions. [2021-11-07 01:33:33,157 INFO L78 Accepts]: Start accepts. Automaton has 219 states and 272 transitions. Word has length 36 [2021-11-07 01:33:33,158 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:33:33,158 INFO L470 AbstractCegarLoop]: Abstraction has 219 states and 272 transitions. [2021-11-07 01:33:33,158 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 18.0) internal successors, (36), 2 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:33:33,159 INFO L276 IsEmpty]: Start isEmpty. Operand 219 states and 272 transitions. [2021-11-07 01:33:33,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2021-11-07 01:33:33,167 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:33:33,167 INFO L513 BasicCegarLoop]: trace histogram [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] [2021-11-07 01:33:33,210 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf0e3a58-6672-469c-a775-ef2c23756683/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-07 01:33:33,368 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf0e3a58-6672-469c-a775-ef2c23756683/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:33:33,368 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-07 01:33:33,369 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:33:33,369 INFO L85 PathProgramCache]: Analyzing trace with hash -1820328590, now seen corresponding path program 1 times [2021-11-07 01:33:33,375 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:33:33,375 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [439458713] [2021-11-07 01:33:33,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:33:33,375 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:33:33,376 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf0e3a58-6672-469c-a775-ef2c23756683/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:33:33,377 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf0e3a58-6672-469c-a775-ef2c23756683/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:33:33,390 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf0e3a58-6672-469c-a775-ef2c23756683/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-07 01:33:38,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:33:38,453 INFO L263 TraceCheckSpWp]: Trace formula consists of 1792 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-07 01:33:38,466 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:33:38,815 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:33:38,816 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:33:39,081 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:33:39,081 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:33:39,082 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [439458713] [2021-11-07 01:33:39,082 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [439458713] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:33:39,082 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:33:39,082 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-11-07 01:33:39,082 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [644460085] [2021-11-07 01:33:39,084 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 01:33:39,084 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:33:39,085 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 01:33:39,085 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-07 01:33:39,086 INFO L87 Difference]: Start difference. First operand 219 states and 272 transitions. Second operand has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:33:39,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:33:39,469 INFO L93 Difference]: Finished difference Result 412 states and 510 transitions. [2021-11-07 01:33:39,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 01:33:39,470 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 40 [2021-11-07 01:33:39,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:33:39,473 INFO L225 Difference]: With dead ends: 412 [2021-11-07 01:33:39,473 INFO L226 Difference]: Without dead ends: 219 [2021-11-07 01:33:39,475 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 76 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-07 01:33:39,476 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 219 states. [2021-11-07 01:33:39,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 219 to 219. [2021-11-07 01:33:39,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 219 states, 208 states have (on average 1.2980769230769231) internal successors, (270), 218 states have internal predecessors, (270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:33:39,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 219 states to 219 states and 270 transitions. [2021-11-07 01:33:39,496 INFO L78 Accepts]: Start accepts. Automaton has 219 states and 270 transitions. Word has length 40 [2021-11-07 01:33:39,497 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:33:39,497 INFO L470 AbstractCegarLoop]: Abstraction has 219 states and 270 transitions. [2021-11-07 01:33:39,497 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:33:39,498 INFO L276 IsEmpty]: Start isEmpty. Operand 219 states and 270 transitions. [2021-11-07 01:33:39,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-11-07 01:33:39,500 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:33:39,500 INFO L513 BasicCegarLoop]: trace histogram [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, 1, 1] [2021-11-07 01:33:39,567 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf0e3a58-6672-469c-a775-ef2c23756683/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-07 01:33:39,701 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf0e3a58-6672-469c-a775-ef2c23756683/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:33:39,701 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-07 01:33:39,702 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:33:39,702 INFO L85 PathProgramCache]: Analyzing trace with hash 1693846175, now seen corresponding path program 1 times [2021-11-07 01:33:39,706 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:33:39,707 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [843253916] [2021-11-07 01:33:39,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:33:39,707 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:33:39,707 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf0e3a58-6672-469c-a775-ef2c23756683/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:33:39,709 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf0e3a58-6672-469c-a775-ef2c23756683/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:33:39,710 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf0e3a58-6672-469c-a775-ef2c23756683/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-07 01:33:44,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:33:44,687 INFO L263 TraceCheckSpWp]: Trace formula consists of 1802 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-07 01:33:44,693 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:33:44,913 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:33:44,913 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:33:45,114 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:33:45,114 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:33:45,114 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [843253916] [2021-11-07 01:33:45,114 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [843253916] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:33:45,115 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:33:45,115 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-11-07 01:33:45,115 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1217749380] [2021-11-07 01:33:45,116 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 01:33:45,116 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:33:45,116 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 01:33:45,117 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-07 01:33:45,117 INFO L87 Difference]: Start difference. First operand 219 states and 270 transitions. Second operand has 4 states, 4 states have (on average 11.5) internal successors, (46), 4 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:33:45,620 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:33:45,620 INFO L93 Difference]: Finished difference Result 473 states and 592 transitions. [2021-11-07 01:33:45,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-07 01:33:45,621 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.5) internal successors, (46), 4 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 46 [2021-11-07 01:33:45,621 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:33:45,623 INFO L225 Difference]: With dead ends: 473 [2021-11-07 01:33:45,624 INFO L226 Difference]: Without dead ends: 279 [2021-11-07 01:33:45,625 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 88 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-07 01:33:45,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 279 states. [2021-11-07 01:33:45,644 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 279 to 231. [2021-11-07 01:33:45,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 231 states, 220 states have (on average 1.2818181818181817) internal successors, (282), 230 states have internal predecessors, (282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:33:45,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 231 states to 231 states and 282 transitions. [2021-11-07 01:33:45,647 INFO L78 Accepts]: Start accepts. Automaton has 231 states and 282 transitions. Word has length 46 [2021-11-07 01:33:45,648 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:33:45,648 INFO L470 AbstractCegarLoop]: Abstraction has 231 states and 282 transitions. [2021-11-07 01:33:45,648 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.5) internal successors, (46), 4 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:33:45,649 INFO L276 IsEmpty]: Start isEmpty. Operand 231 states and 282 transitions. [2021-11-07 01:33:45,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-11-07 01:33:45,651 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:33:45,651 INFO L513 BasicCegarLoop]: trace histogram [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, 1, 1] [2021-11-07 01:33:45,704 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf0e3a58-6672-469c-a775-ef2c23756683/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-07 01:33:45,852 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf0e3a58-6672-469c-a775-ef2c23756683/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:33:45,852 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-07 01:33:45,853 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:33:45,853 INFO L85 PathProgramCache]: Analyzing trace with hash 992246301, now seen corresponding path program 1 times [2021-11-07 01:33:45,857 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:33:45,857 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1073735398] [2021-11-07 01:33:45,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:33:45,858 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:33:45,858 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf0e3a58-6672-469c-a775-ef2c23756683/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:33:45,859 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf0e3a58-6672-469c-a775-ef2c23756683/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:33:45,860 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf0e3a58-6672-469c-a775-ef2c23756683/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-07 01:33:50,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:33:50,742 INFO L263 TraceCheckSpWp]: Trace formula consists of 1805 conjuncts, 16 conjunts are in the unsatisfiable core [2021-11-07 01:33:50,748 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:33:51,157 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 14 [2021-11-07 01:33:51,612 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:33:51,612 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:33:52,006 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 34 [2021-11-07 01:33:52,339 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:33:52,339 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:33:52,340 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1073735398] [2021-11-07 01:33:52,340 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1073735398] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:33:52,340 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:33:52,340 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9, 8] imperfect sequences [] total 13 [2021-11-07 01:33:52,340 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1060804475] [2021-11-07 01:33:52,341 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-11-07 01:33:52,341 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:33:52,342 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-11-07 01:33:52,342 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2021-11-07 01:33:52,343 INFO L87 Difference]: Start difference. First operand 231 states and 282 transitions. Second operand has 13 states, 13 states have (on average 4.6923076923076925) internal successors, (61), 13 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:34:04,839 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:34:04,839 INFO L93 Difference]: Finished difference Result 702 states and 862 transitions. [2021-11-07 01:34:04,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-11-07 01:34:04,841 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 4.6923076923076925) internal successors, (61), 13 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 46 [2021-11-07 01:34:04,841 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:34:04,844 INFO L225 Difference]: With dead ends: 702 [2021-11-07 01:34:04,844 INFO L226 Difference]: Without dead ends: 498 [2021-11-07 01:34:04,846 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 79 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 91 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=179, Invalid=421, Unknown=0, NotChecked=0, Total=600 [2021-11-07 01:34:04,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 498 states. [2021-11-07 01:34:04,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 498 to 295. [2021-11-07 01:34:04,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 295 states, 284 states have (on average 1.2992957746478873) internal successors, (369), 294 states have internal predecessors, (369), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:34:04,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 295 states to 295 states and 369 transitions. [2021-11-07 01:34:04,874 INFO L78 Accepts]: Start accepts. Automaton has 295 states and 369 transitions. Word has length 46 [2021-11-07 01:34:04,874 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:34:04,874 INFO L470 AbstractCegarLoop]: Abstraction has 295 states and 369 transitions. [2021-11-07 01:34:04,875 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 4.6923076923076925) internal successors, (61), 13 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:34:04,875 INFO L276 IsEmpty]: Start isEmpty. Operand 295 states and 369 transitions. [2021-11-07 01:34:04,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2021-11-07 01:34:04,878 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:34:04,878 INFO L513 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1] [2021-11-07 01:34:04,940 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf0e3a58-6672-469c-a775-ef2c23756683/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-07 01:34:05,091 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf0e3a58-6672-469c-a775-ef2c23756683/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:34:05,091 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-07 01:34:05,092 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:34:05,092 INFO L85 PathProgramCache]: Analyzing trace with hash 1651066279, now seen corresponding path program 1 times [2021-11-07 01:34:05,097 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:34:05,097 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [128425618] [2021-11-07 01:34:05,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:34:05,098 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:34:05,098 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf0e3a58-6672-469c-a775-ef2c23756683/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:34:05,100 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf0e3a58-6672-469c-a775-ef2c23756683/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:34:05,109 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf0e3a58-6672-469c-a775-ef2c23756683/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-07 01:34:09,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:34:10,051 INFO L263 TraceCheckSpWp]: Trace formula consists of 1811 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-07 01:34:10,055 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:34:10,496 INFO L354 Elim1Store]: treesize reduction 336, result has 0.3 percent of original size [2021-11-07 01:34:10,496 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 203 treesize of output 59 [2021-11-07 01:34:10,803 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:34:10,804 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:34:11,446 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:34:11,447 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:34:11,447 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [128425618] [2021-11-07 01:34:11,447 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [128425618] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:34:11,447 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:34:11,447 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 6 [2021-11-07 01:34:11,448 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1437143671] [2021-11-07 01:34:11,448 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-07 01:34:11,448 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:34:11,449 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-07 01:34:11,449 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-07 01:34:11,449 INFO L87 Difference]: Start difference. First operand 295 states and 369 transitions. Second operand has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 6 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:34:26,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:34:26,429 INFO L93 Difference]: Finished difference Result 868 states and 1081 transitions. [2021-11-07 01:34:26,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-07 01:34:26,431 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 6 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 50 [2021-11-07 01:34:26,431 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:34:26,435 INFO L225 Difference]: With dead ends: 868 [2021-11-07 01:34:26,435 INFO L226 Difference]: Without dead ends: 593 [2021-11-07 01:34:26,436 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 93 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2021-11-07 01:34:26,438 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 593 states. [2021-11-07 01:34:26,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 593 to 351. [2021-11-07 01:34:26,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 351 states, 340 states have (on average 1.2970588235294118) internal successors, (441), 350 states have internal predecessors, (441), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:34:26,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 351 states to 351 states and 441 transitions. [2021-11-07 01:34:26,461 INFO L78 Accepts]: Start accepts. Automaton has 351 states and 441 transitions. Word has length 50 [2021-11-07 01:34:26,461 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:34:26,461 INFO L470 AbstractCegarLoop]: Abstraction has 351 states and 441 transitions. [2021-11-07 01:34:26,462 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 6 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:34:26,462 INFO L276 IsEmpty]: Start isEmpty. Operand 351 states and 441 transitions. [2021-11-07 01:34:26,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2021-11-07 01:34:26,465 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:34:26,465 INFO L513 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1] [2021-11-07 01:34:26,510 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf0e3a58-6672-469c-a775-ef2c23756683/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-07 01:34:26,675 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf0e3a58-6672-469c-a775-ef2c23756683/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:34:26,675 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-07 01:34:26,676 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:34:26,676 INFO L85 PathProgramCache]: Analyzing trace with hash 1925825893, now seen corresponding path program 1 times [2021-11-07 01:34:26,680 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:34:26,680 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [8986234] [2021-11-07 01:34:26,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:34:26,681 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:34:26,681 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf0e3a58-6672-469c-a775-ef2c23756683/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:34:26,681 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf0e3a58-6672-469c-a775-ef2c23756683/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:34:26,683 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf0e3a58-6672-469c-a775-ef2c23756683/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-07 01:34:31,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:34:31,521 INFO L263 TraceCheckSpWp]: Trace formula consists of 1808 conjuncts, 13 conjunts are in the unsatisfiable core [2021-11-07 01:34:31,525 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:34:31,989 INFO L354 Elim1Store]: treesize reduction 336, result has 0.3 percent of original size [2021-11-07 01:34:31,989 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 203 treesize of output 59 [2021-11-07 01:34:32,580 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:34:32,580 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:34:33,219 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:34:33,219 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:34:33,219 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [8986234] [2021-11-07 01:34:33,219 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [8986234] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:34:33,220 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:34:33,220 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10, 10] imperfect sequences [] total 11 [2021-11-07 01:34:33,220 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [481499328] [2021-11-07 01:34:33,221 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-07 01:34:33,221 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:34:33,221 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-07 01:34:33,222 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2021-11-07 01:34:33,222 INFO L87 Difference]: Start difference. First operand 351 states and 441 transitions. Second operand has 11 states, 11 states have (on average 4.7272727272727275) internal successors, (52), 11 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:35:10,769 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:35:10,769 INFO L93 Difference]: Finished difference Result 1126 states and 1357 transitions. [2021-11-07 01:35:10,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-11-07 01:35:10,771 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 4.7272727272727275) internal successors, (52), 11 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 50 [2021-11-07 01:35:10,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:35:10,776 INFO L225 Difference]: With dead ends: 1126 [2021-11-07 01:35:10,777 INFO L226 Difference]: Without dead ends: 780 [2021-11-07 01:35:10,778 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 88 SyntacticMatches, 1 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=113, Invalid=393, Unknown=0, NotChecked=0, Total=506 [2021-11-07 01:35:10,780 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 780 states. [2021-11-07 01:35:10,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 780 to 360. [2021-11-07 01:35:10,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 360 states, 349 states have (on average 1.2779369627507164) internal successors, (446), 359 states have internal predecessors, (446), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:35:10,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 360 states to 360 states and 446 transitions. [2021-11-07 01:35:10,803 INFO L78 Accepts]: Start accepts. Automaton has 360 states and 446 transitions. Word has length 50 [2021-11-07 01:35:10,803 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:35:10,803 INFO L470 AbstractCegarLoop]: Abstraction has 360 states and 446 transitions. [2021-11-07 01:35:10,803 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 4.7272727272727275) internal successors, (52), 11 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:35:10,804 INFO L276 IsEmpty]: Start isEmpty. Operand 360 states and 446 transitions. [2021-11-07 01:35:10,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2021-11-07 01:35:10,806 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:35:10,806 INFO L513 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:35:10,853 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf0e3a58-6672-469c-a775-ef2c23756683/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-07 01:35:11,019 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf0e3a58-6672-469c-a775-ef2c23756683/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:35:11,019 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-07 01:35:11,020 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:35:11,020 INFO L85 PathProgramCache]: Analyzing trace with hash 1204805774, now seen corresponding path program 1 times [2021-11-07 01:35:11,024 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:35:11,024 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1653963987] [2021-11-07 01:35:11,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:35:11,024 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:35:11,024 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf0e3a58-6672-469c-a775-ef2c23756683/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:35:11,025 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf0e3a58-6672-469c-a775-ef2c23756683/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:35:11,026 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf0e3a58-6672-469c-a775-ef2c23756683/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-07 01:35:15,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:35:15,948 INFO L263 TraceCheckSpWp]: Trace formula consists of 1813 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-07 01:35:15,952 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:35:16,369 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:35:16,369 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:35:16,727 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:35:16,728 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:35:16,728 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1653963987] [2021-11-07 01:35:16,728 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1653963987] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:35:16,728 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:35:16,728 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-11-07 01:35:16,728 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1525968213] [2021-11-07 01:35:16,729 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 01:35:16,729 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:35:16,729 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 01:35:16,729 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-07 01:35:16,730 INFO L87 Difference]: Start difference. First operand 360 states and 446 transitions. Second operand has 5 states, 5 states have (on average 10.4) internal successors, (52), 5 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:35:19,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:35:19,324 INFO L93 Difference]: Finished difference Result 723 states and 891 transitions. [2021-11-07 01:35:19,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-07 01:35:19,326 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 5 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 52 [2021-11-07 01:35:19,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:35:19,329 INFO L225 Difference]: With dead ends: 723 [2021-11-07 01:35:19,329 INFO L226 Difference]: Without dead ends: 459 [2021-11-07 01:35:19,330 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-07 01:35:19,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 459 states. [2021-11-07 01:35:19,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 459 to 360. [2021-11-07 01:35:19,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 360 states, 349 states have (on average 1.2722063037249283) internal successors, (444), 359 states have internal predecessors, (444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:35:19,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 360 states to 360 states and 444 transitions. [2021-11-07 01:35:19,351 INFO L78 Accepts]: Start accepts. Automaton has 360 states and 444 transitions. Word has length 52 [2021-11-07 01:35:19,351 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:35:19,351 INFO L470 AbstractCegarLoop]: Abstraction has 360 states and 444 transitions. [2021-11-07 01:35:19,352 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 5 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:35:19,352 INFO L276 IsEmpty]: Start isEmpty. Operand 360 states and 444 transitions. [2021-11-07 01:35:19,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-11-07 01:35:19,353 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:35:19,354 INFO L513 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:35:19,400 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf0e3a58-6672-469c-a775-ef2c23756683/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-11-07 01:35:19,567 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf0e3a58-6672-469c-a775-ef2c23756683/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:35:19,567 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-07 01:35:19,568 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:35:19,568 INFO L85 PathProgramCache]: Analyzing trace with hash 215168707, now seen corresponding path program 1 times [2021-11-07 01:35:19,572 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:35:19,572 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1807624993] [2021-11-07 01:35:19,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:35:19,572 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:35:19,572 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf0e3a58-6672-469c-a775-ef2c23756683/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:35:19,573 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf0e3a58-6672-469c-a775-ef2c23756683/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:35:19,574 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf0e3a58-6672-469c-a775-ef2c23756683/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-11-07 01:35:24,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:35:24,424 INFO L263 TraceCheckSpWp]: Trace formula consists of 1826 conjuncts, 24 conjunts are in the unsatisfiable core [2021-11-07 01:35:24,430 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:35:25,910 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:35:25,910 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:35:38,430 WARN L207 SmtUtils]: Spent 10.99 s on a formula simplification. DAG size of input: 526 DAG size of output: 272 [2021-11-07 01:35:38,438 INFO L354 Elim1Store]: treesize reduction 897, result has 45.1 percent of original size [2021-11-07 01:35:38,439 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 16 select indices, 16 select index equivalence classes, 0 disjoint index pairs (out of 120 index pairs), introduced 16 new quantified variables, introduced 120 case distinctions, treesize of input 132 treesize of output 771