./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-consumption/linux-3.8-rc1-32_7a-drivers--usb--serial--usbserial.ko-ldv_main0.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 38b53e6a Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a49dd73-9ef1-4e9b-8e53-d859215e526f/bin/uautomizer-ZsLfNo2U6R/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a49dd73-9ef1-4e9b-8e53-d859215e526f/bin/uautomizer-ZsLfNo2U6R/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a49dd73-9ef1-4e9b-8e53-d859215e526f/bin/uautomizer-ZsLfNo2U6R/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a49dd73-9ef1-4e9b-8e53-d859215e526f/bin/uautomizer-ZsLfNo2U6R/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-consumption/linux-3.8-rc1-32_7a-drivers--usb--serial--usbserial.ko-ldv_main0.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a49dd73-9ef1-4e9b-8e53-d859215e526f/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a49dd73-9ef1-4e9b-8e53-d859215e526f/bin/uautomizer-ZsLfNo2U6R --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 Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash ac653d5d4bd645822c87d49861fb2a5e304e57a9bdc7e425845f1dc10a0731d2 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-38b53e6 [2022-11-25 17:15:22,785 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 17:15:22,788 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 17:15:22,836 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 17:15:22,836 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 17:15:22,837 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 17:15:22,839 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 17:15:22,841 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 17:15:22,847 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 17:15:22,854 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 17:15:22,855 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 17:15:22,856 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 17:15:22,856 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 17:15:22,857 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 17:15:22,858 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 17:15:22,860 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 17:15:22,860 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 17:15:22,861 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 17:15:22,864 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 17:15:22,874 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 17:15:22,880 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 17:15:22,884 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 17:15:22,886 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 17:15:22,887 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 17:15:22,893 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 17:15:22,893 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 17:15:22,894 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 17:15:22,896 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 17:15:22,896 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 17:15:22,897 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 17:15:22,898 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 17:15:22,898 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 17:15:22,900 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 17:15:22,902 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 17:15:22,903 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 17:15:22,904 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 17:15:22,904 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 17:15:22,905 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 17:15:22,905 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 17:15:22,907 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 17:15:22,908 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 17:15:22,908 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a49dd73-9ef1-4e9b-8e53-d859215e526f/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-11-25 17:15:22,954 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 17:15:22,954 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 17:15:22,955 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 17:15:22,955 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 17:15:22,956 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 17:15:22,956 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 17:15:22,957 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-25 17:15:22,957 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-25 17:15:22,957 INFO L138 SettingsManager]: * Use SBE=true [2022-11-25 17:15:22,957 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 17:15:22,958 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 17:15:22,959 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 17:15:22,959 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 17:15:22,959 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 17:15:22,959 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 17:15:22,959 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 17:15:22,960 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 17:15:22,960 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 17:15:22,960 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 17:15:22,960 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-25 17:15:22,960 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 17:15:22,961 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 17:15:22,961 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 17:15:22,961 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 17:15:22,961 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 17:15:22,962 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-25 17:15:22,962 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-25 17:15:22,962 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-25 17:15:22,963 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 17:15:22,963 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-11-25 17:15:22,963 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-25 17:15:22,963 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_5a49dd73-9ef1-4e9b-8e53-d859215e526f/bin/uautomizer-ZsLfNo2U6R/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a49dd73-9ef1-4e9b-8e53-d859215e526f/bin/uautomizer-ZsLfNo2U6R Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ac653d5d4bd645822c87d49861fb2a5e304e57a9bdc7e425845f1dc10a0731d2 [2022-11-25 17:15:23,316 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 17:15:23,354 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 17:15:23,357 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 17:15:23,359 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 17:15:23,359 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 17:15:23,361 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a49dd73-9ef1-4e9b-8e53-d859215e526f/bin/uautomizer-ZsLfNo2U6R/../../sv-benchmarks/c/ldv-consumption/linux-3.8-rc1-32_7a-drivers--usb--serial--usbserial.ko-ldv_main0.cil.out.i [2022-11-25 17:15:26,500 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 17:15:27,061 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 17:15:27,062 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a49dd73-9ef1-4e9b-8e53-d859215e526f/sv-benchmarks/c/ldv-consumption/linux-3.8-rc1-32_7a-drivers--usb--serial--usbserial.ko-ldv_main0.cil.out.i [2022-11-25 17:15:27,097 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a49dd73-9ef1-4e9b-8e53-d859215e526f/bin/uautomizer-ZsLfNo2U6R/data/9d5582317/108f7c527b174c79a04d1531ec22cae4/FLAGa212d8171 [2022-11-25 17:15:27,117 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a49dd73-9ef1-4e9b-8e53-d859215e526f/bin/uautomizer-ZsLfNo2U6R/data/9d5582317/108f7c527b174c79a04d1531ec22cae4 [2022-11-25 17:15:27,120 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 17:15:27,121 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 17:15:27,123 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 17:15:27,123 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 17:15:27,127 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 17:15:27,127 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 05:15:27" (1/1) ... [2022-11-25 17:15:27,128 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7c9078fa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:15:27, skipping insertion in model container [2022-11-25 17:15:27,129 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 05:15:27" (1/1) ... [2022-11-25 17:15:27,136 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 17:15:27,348 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 17:15:27,891 WARN L623 FunctionHandler]: Unknown extern function __list_add [2022-11-25 17:15:27,956 WARN L623 FunctionHandler]: Unknown extern function __xadd_wrong_size [2022-11-25 17:15:28,250 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock [2022-11-25 17:15:28,257 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_unlock [2022-11-25 17:15:28,282 WARN L623 FunctionHandler]: Unknown extern function queue_work_on [2022-11-25 17:15:28,311 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-11-25 17:15:28,330 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-11-25 17:15:28,399 WARN L623 FunctionHandler]: Unknown extern function __tty_alloc_driver [2022-11-25 17:15:28,589 WARN L623 FunctionHandler]: Unknown extern function dev_get_drvdata [2022-11-25 17:15:28,594 WARN L623 FunctionHandler]: Unknown extern function dev_set_drvdata [2022-11-25 17:15:28,803 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-25 17:15:28,817 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-25 17:15:28,845 WARN L623 FunctionHandler]: Unknown extern function put_device [2022-11-25 17:15:28,850 WARN L623 FunctionHandler]: Unknown extern function usb_put_intf [2022-11-25 17:15:28,858 WARN L623 FunctionHandler]: Unknown extern function usb_put_dev [2022-11-25 17:15:28,858 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 17:15:28,864 WARN L623 FunctionHandler]: Unknown extern function try_module_get [2022-11-25 17:15:28,865 WARN L623 FunctionHandler]: Unknown extern function usb_autopm_get_interface [2022-11-25 17:15:28,867 WARN L623 FunctionHandler]: Unknown extern function tty_port_install [2022-11-25 17:15:28,869 WARN L623 FunctionHandler]: Unknown extern function usb_autopm_put_interface [2022-11-25 17:15:28,870 WARN L623 FunctionHandler]: Unknown extern function module_put [2022-11-25 17:15:28,882 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-25 17:15:28,883 WARN L623 FunctionHandler]: Unknown extern function tty_port_open [2022-11-25 17:15:28,894 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-25 17:15:28,895 WARN L623 FunctionHandler]: Unknown extern function tty_port_hangup [2022-11-25 17:15:28,900 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-25 17:15:28,901 WARN L623 FunctionHandler]: Unknown extern function tty_port_close [2022-11-25 17:15:28,906 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-25 17:15:28,909 WARN L623 FunctionHandler]: Unknown extern function usb_autopm_put_interface [2022-11-25 17:15:28,910 WARN L623 FunctionHandler]: Unknown extern function module_put [2022-11-25 17:15:28,915 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-25 17:15:28,922 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-25 17:15:28,929 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-25 17:15:28,936 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-25 17:15:28,943 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-25 17:15:28,950 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-25 17:15:28,958 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-25 17:15:28,960 WARN L623 FunctionHandler]: Unknown extern function tty_termios_copy_hw [2022-11-25 17:15:28,966 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-25 17:15:28,971 WARN L623 FunctionHandler]: Unknown extern function seq_puts [2022-11-25 17:15:28,973 WARN L623 FunctionHandler]: Unknown extern function seq_printf [2022-11-25 17:15:28,974 WARN L623 FunctionHandler]: Unknown extern function seq_printf [2022-11-25 17:15:28,975 WARN L623 FunctionHandler]: Unknown extern function seq_printf [2022-11-25 17:15:28,976 WARN L623 FunctionHandler]: Unknown extern function seq_printf [2022-11-25 17:15:28,977 WARN L623 FunctionHandler]: Unknown extern function seq_printf [2022-11-25 17:15:28,977 WARN L623 FunctionHandler]: Unknown extern function seq_printf [2022-11-25 17:15:28,978 WARN L623 FunctionHandler]: Unknown extern function seq_printf [2022-11-25 17:15:28,979 WARN L623 FunctionHandler]: Unknown extern function seq_putc [2022-11-25 17:15:28,983 WARN L623 FunctionHandler]: Unknown extern function single_open [2022-11-25 17:15:28,989 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-25 17:15:28,996 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-25 17:15:29,003 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-25 17:15:29,009 WARN L623 FunctionHandler]: Unknown extern function tty_port_tty_wakeup [2022-11-25 17:15:29,013 WARN L623 FunctionHandler]: Unknown extern function usb_poison_urb [2022-11-25 17:15:29,014 WARN L623 FunctionHandler]: Unknown extern function usb_poison_urb [2022-11-25 17:15:29,015 WARN L623 FunctionHandler]: Unknown extern function usb_poison_urb [2022-11-25 17:15:29,015 WARN L623 FunctionHandler]: Unknown extern function usb_poison_urb [2022-11-25 17:15:29,019 WARN L623 FunctionHandler]: Unknown extern function usb_unpoison_urb [2022-11-25 17:15:29,020 WARN L623 FunctionHandler]: Unknown extern function usb_unpoison_urb [2022-11-25 17:15:29,021 WARN L623 FunctionHandler]: Unknown extern function usb_unpoison_urb [2022-11-25 17:15:29,021 WARN L623 FunctionHandler]: Unknown extern function usb_unpoison_urb [2022-11-25 17:15:29,026 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-25 17:15:29,027 WARN L623 FunctionHandler]: Unknown extern function usb_free_urb [2022-11-25 17:15:29,028 WARN L623 FunctionHandler]: Unknown extern function usb_free_urb [2022-11-25 17:15:29,028 WARN L623 FunctionHandler]: Unknown extern function usb_free_urb [2022-11-25 17:15:29,029 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 17:15:29,030 WARN L623 FunctionHandler]: Unknown extern function usb_free_urb [2022-11-25 17:15:29,030 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 17:15:29,031 WARN L623 FunctionHandler]: Unknown extern function __kfifo_free [2022-11-25 17:15:29,031 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 17:15:29,032 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 17:15:29,032 WARN L623 FunctionHandler]: Unknown extern function tty_port_destroy [2022-11-25 17:15:29,032 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 17:15:29,039 WARN L623 FunctionHandler]: Unknown extern function usb_get_dev [2022-11-25 17:15:29,039 WARN L623 FunctionHandler]: Unknown extern function usb_get_intf [2022-11-25 17:15:29,041 WARN L623 FunctionHandler]: Unknown extern function __mutex_init [2022-11-25 17:15:29,046 WARN L623 FunctionHandler]: Unknown extern function usb_match_one_id [2022-11-25 17:15:29,052 WARN L623 FunctionHandler]: Unknown extern function usb_match_id [2022-11-25 17:15:29,056 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-25 17:15:29,059 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-25 17:15:29,089 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-25 17:15:29,090 WARN L623 FunctionHandler]: Unknown extern function try_module_get [2022-11-25 17:15:29,091 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 17:15:29,098 WARN L623 FunctionHandler]: Unknown extern function module_put [2022-11-25 17:15:29,100 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-25 17:15:29,102 WARN L623 FunctionHandler]: Unknown extern function module_put [2022-11-25 17:15:29,106 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-25 17:15:29,115 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-25 17:15:29,119 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-25 17:15:29,123 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-25 17:15:29,127 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-25 17:15:29,139 WARN L623 FunctionHandler]: Unknown extern function _dev_info [2022-11-25 17:15:29,140 WARN L623 FunctionHandler]: Unknown extern function module_put [2022-11-25 17:15:29,141 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 17:15:29,141 WARN L623 FunctionHandler]: Unknown extern function module_put [2022-11-25 17:15:29,142 WARN L623 FunctionHandler]: Unknown extern function _dev_info [2022-11-25 17:15:29,142 WARN L623 FunctionHandler]: Unknown extern function _dev_info [2022-11-25 17:15:29,143 WARN L623 FunctionHandler]: Unknown extern function _dev_info [2022-11-25 17:15:29,147 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-25 17:15:29,149 WARN L623 FunctionHandler]: Unknown extern function tty_port_init [2022-11-25 17:15:29,149 WARN L623 FunctionHandler]: Unknown extern function __raw_spin_lock_init [2022-11-25 17:15:29,150 WARN L623 FunctionHandler]: Unknown extern function __init_work [2022-11-25 17:15:29,150 WARN L623 FunctionHandler]: Unknown extern function lockdep_init_map [2022-11-25 17:15:29,153 WARN L623 FunctionHandler]: Unknown extern function device_initialize [2022-11-25 17:15:29,155 WARN L623 FunctionHandler]: Unknown extern function usb_alloc_urb [2022-11-25 17:15:29,157 WARN L623 FunctionHandler]: Unknown extern function __kfifo_alloc [2022-11-25 17:15:29,158 WARN L623 FunctionHandler]: Unknown extern function usb_alloc_urb [2022-11-25 17:15:29,162 WARN L623 FunctionHandler]: Unknown extern function usb_alloc_urb [2022-11-25 17:15:29,174 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-25 17:15:29,176 WARN L623 FunctionHandler]: Unknown extern function usb_alloc_urb [2022-11-25 17:15:29,180 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-25 17:15:29,184 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 17:15:29,185 WARN L623 FunctionHandler]: Unknown extern function dev_set_name [2022-11-25 17:15:29,186 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-25 17:15:29,187 WARN L623 FunctionHandler]: Unknown extern function device_add [2022-11-25 17:15:29,188 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 17:15:29,189 WARN L623 FunctionHandler]: Unknown extern function module_put [2022-11-25 17:15:29,190 WARN L623 FunctionHandler]: Unknown extern function module_put [2022-11-25 17:15:29,196 WARN L623 FunctionHandler]: Unknown extern function tty_port_tty_get [2022-11-25 17:15:29,196 WARN L623 FunctionHandler]: Unknown extern function tty_vhangup [2022-11-25 17:15:29,197 WARN L623 FunctionHandler]: Unknown extern function tty_kref_put [2022-11-25 17:15:29,197 WARN L623 FunctionHandler]: Unknown extern function __wake_up [2022-11-25 17:15:29,201 WARN L623 FunctionHandler]: Unknown extern function cancel_work_sync [2022-11-25 17:15:29,202 WARN L623 FunctionHandler]: Unknown extern function device_del [2022-11-25 17:15:29,203 WARN L623 FunctionHandler]: Unknown extern function _dev_info [2022-11-25 17:15:29,221 WARN L623 FunctionHandler]: Unknown extern function bus_register [2022-11-25 17:15:29,222 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:15:29,228 WARN L623 FunctionHandler]: Unknown extern function tty_set_operations [2022-11-25 17:15:29,229 WARN L623 FunctionHandler]: Unknown extern function tty_register_driver [2022-11-25 17:15:29,251 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:15:29,253 WARN L623 FunctionHandler]: Unknown extern function usb_register_driver [2022-11-25 17:15:29,253 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:15:29,254 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:15:29,255 WARN L623 FunctionHandler]: Unknown extern function usb_deregister [2022-11-25 17:15:29,255 WARN L623 FunctionHandler]: Unknown extern function tty_unregister_driver [2022-11-25 17:15:29,255 WARN L623 FunctionHandler]: Unknown extern function bus_unregister [2022-11-25 17:15:29,256 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:15:29,256 WARN L623 FunctionHandler]: Unknown extern function put_tty_driver [2022-11-25 17:15:29,260 WARN L623 FunctionHandler]: Unknown extern function usb_deregister [2022-11-25 17:15:29,260 WARN L623 FunctionHandler]: Unknown extern function tty_unregister_driver [2022-11-25 17:15:29,261 WARN L623 FunctionHandler]: Unknown extern function put_tty_driver [2022-11-25 17:15:29,261 WARN L623 FunctionHandler]: Unknown extern function bus_unregister [2022-11-25 17:15:29,266 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-11-25 17:15:29,272 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-11-25 17:15:29,276 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-11-25 17:15:29,281 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-11-25 17:15:29,283 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-11-25 17:15:29,285 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-11-25 17:15:29,288 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-11-25 17:15:29,290 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-11-25 17:15:29,299 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-11-25 17:15:29,304 WARN L623 FunctionHandler]: Unknown extern function usb_disabled [2022-11-25 17:15:29,306 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_fmt [2022-11-25 17:15:29,311 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:15:29,312 WARN L623 FunctionHandler]: Unknown extern function list_del [2022-11-25 17:15:29,315 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:15:29,319 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:15:29,319 WARN L623 FunctionHandler]: Unknown extern function list_del [2022-11-25 17:15:29,322 WARN L623 FunctionHandler]: Unknown extern function usb_register_driver [2022-11-25 17:15:29,324 WARN L623 FunctionHandler]: Unknown extern function driver_attach [2022-11-25 17:15:29,325 WARN L623 FunctionHandler]: Unknown extern function usb_deregister [2022-11-25 17:15:29,326 WARN L623 FunctionHandler]: Unknown extern function usb_deregister [2022-11-25 17:15:29,332 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 17:15:29,351 WARN L623 FunctionHandler]: Unknown extern function ldv_handler_precall [2022-11-25 17:15:29,351 WARN L623 FunctionHandler]: Unknown extern function ldv_handler_precall [2022-11-25 17:15:29,352 WARN L623 FunctionHandler]: Unknown extern function ldv_check_return_value [2022-11-25 17:15:29,352 WARN L623 FunctionHandler]: Unknown extern function ldv_handler_precall [2022-11-25 17:15:29,353 WARN L623 FunctionHandler]: Unknown extern function ldv_handler_precall [2022-11-25 17:15:29,353 WARN L623 FunctionHandler]: Unknown extern function ldv_handler_precall [2022-11-25 17:15:29,353 WARN L623 FunctionHandler]: Unknown extern function ldv_handler_precall [2022-11-25 17:15:29,354 WARN L623 FunctionHandler]: Unknown extern function ldv_handler_precall [2022-11-25 17:15:29,354 WARN L623 FunctionHandler]: Unknown extern function ldv_check_return_value [2022-11-25 17:15:29,355 WARN L623 FunctionHandler]: Unknown extern function ldv_handler_precall [2022-11-25 17:15:29,355 WARN L623 FunctionHandler]: Unknown extern function ldv_handler_precall [2022-11-25 17:15:29,355 WARN L623 FunctionHandler]: Unknown extern function ldv_handler_precall [2022-11-25 17:15:29,356 WARN L623 FunctionHandler]: Unknown extern function ldv_handler_precall [2022-11-25 17:15:29,356 WARN L623 FunctionHandler]: Unknown extern function ldv_handler_precall [2022-11-25 17:15:29,357 WARN L623 FunctionHandler]: Unknown extern function ldv_handler_precall [2022-11-25 17:15:29,357 WARN L623 FunctionHandler]: Unknown extern function ldv_handler_precall [2022-11-25 17:15:29,357 WARN L623 FunctionHandler]: Unknown extern function ldv_handler_precall [2022-11-25 17:15:29,357 WARN L623 FunctionHandler]: Unknown extern function ldv_handler_precall [2022-11-25 17:15:29,358 WARN L623 FunctionHandler]: Unknown extern function ldv_handler_precall [2022-11-25 17:15:29,358 WARN L623 FunctionHandler]: Unknown extern function ldv_handler_precall [2022-11-25 17:15:29,359 WARN L623 FunctionHandler]: Unknown extern function ldv_handler_precall [2022-11-25 17:15:29,359 WARN L623 FunctionHandler]: Unknown extern function ldv_handler_precall [2022-11-25 17:15:29,359 WARN L623 FunctionHandler]: Unknown extern function ldv_handler_precall [2022-11-25 17:15:29,360 WARN L623 FunctionHandler]: Unknown extern function ldv_handler_precall [2022-11-25 17:15:29,360 WARN L623 FunctionHandler]: Unknown extern function ldv_check_return_value [2022-11-25 17:15:29,360 WARN L623 FunctionHandler]: Unknown extern function ldv_check_return_value_probe [2022-11-25 17:15:29,361 WARN L623 FunctionHandler]: Unknown extern function ldv_handler_precall [2022-11-25 17:15:29,361 WARN L623 FunctionHandler]: Unknown extern function ldv_handler_precall [2022-11-25 17:15:29,362 WARN L623 FunctionHandler]: Unknown extern function ldv_handler_precall [2022-11-25 17:15:29,362 WARN L623 FunctionHandler]: Unknown extern function ldv_handler_precall [2022-11-25 17:15:29,363 WARN L623 FunctionHandler]: Unknown extern function mutex_lock [2022-11-25 17:15:29,364 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-25 17:15:29,364 WARN L623 FunctionHandler]: Unknown extern function mutex_lock [2022-11-25 17:15:29,365 WARN L623 FunctionHandler]: Unknown extern function mutex_trylock [2022-11-25 17:15:29,365 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-25 17:15:29,366 WARN L623 FunctionHandler]: Unknown extern function mutex_lock [2022-11-25 17:15:29,366 WARN L623 FunctionHandler]: Unknown extern function mutex_lock [2022-11-25 17:15:29,366 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-25 17:15:29,367 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-25 17:15:29,367 WARN L623 FunctionHandler]: Unknown extern function mutex_lock [2022-11-25 17:15:29,367 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-25 17:15:29,368 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-25 17:15:29,368 WARN L623 FunctionHandler]: Unknown extern function mutex_lock [2022-11-25 17:15:29,369 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-25 17:15:29,369 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-25 17:15:29,369 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-25 17:15:29,370 WARN L623 FunctionHandler]: Unknown extern function mutex_lock [2022-11-25 17:15:29,370 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-25 17:15:29,370 WARN L623 FunctionHandler]: Unknown extern function mutex_lock [2022-11-25 17:15:29,371 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-25 17:15:29,371 WARN L623 FunctionHandler]: Unknown extern function mutex_lock [2022-11-25 17:15:29,371 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-25 17:15:29,372 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-25 17:15:29,372 WARN L623 FunctionHandler]: Unknown extern function mutex_lock [2022-11-25 17:15:29,372 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-25 17:15:29,373 WARN L623 FunctionHandler]: Unknown extern function mutex_lock [2022-11-25 17:15:29,373 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-25 17:15:29,374 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-25 17:15:29,374 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-25 17:15:29,374 WARN L623 FunctionHandler]: Unknown extern function mutex_lock [2022-11-25 17:15:29,375 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-25 17:15:29,375 WARN L623 FunctionHandler]: Unknown extern function mutex_lock [2022-11-25 17:15:29,375 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-25 17:15:29,376 WARN L623 FunctionHandler]: Unknown extern function mutex_lock [2022-11-25 17:15:29,376 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-25 17:15:29,408 WARN L623 FunctionHandler]: Unknown extern function __bad_percpu_size [2022-11-25 17:15:29,427 WARN L623 FunctionHandler]: Unknown extern function __bad_percpu_size [2022-11-25 17:15:29,444 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irq [2022-11-25 17:15:29,448 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_unlock_irq [2022-11-25 17:15:29,451 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_unlock_irqrestore [2022-11-25 17:15:29,475 WARN L623 FunctionHandler]: Unknown extern function tty_insert_flip_string_flags [2022-11-25 17:15:29,479 WARN L623 FunctionHandler]: Unknown extern function tty_insert_flip_string_fixed_flag [2022-11-25 17:15:29,535 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-25 17:15:29,538 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irqsave [2022-11-25 17:15:29,539 WARN L623 FunctionHandler]: Unknown extern function usb_kill_urb [2022-11-25 17:15:29,540 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irqsave [2022-11-25 17:15:29,541 WARN L623 FunctionHandler]: Unknown extern function usb_kill_urb [2022-11-25 17:15:29,542 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irqsave [2022-11-25 17:15:29,543 WARN L623 FunctionHandler]: Unknown extern function __kfifo_out_r [2022-11-25 17:15:29,543 WARN L623 FunctionHandler]: Unknown extern function __kfifo_out [2022-11-25 17:15:29,547 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irqsave [2022-11-25 17:15:29,548 WARN L623 FunctionHandler]: Unknown extern function find_first_bit [2022-11-25 17:15:29,550 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irqsave [2022-11-25 17:15:29,550 WARN L623 FunctionHandler]: Unknown extern function usb_submit_urb [2022-11-25 17:15:29,551 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 17:15:29,552 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irqsave [2022-11-25 17:15:29,554 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irqsave [2022-11-25 17:15:29,555 WARN L623 FunctionHandler]: Unknown extern function __kfifo_in_r [2022-11-25 17:15:29,555 WARN L623 FunctionHandler]: Unknown extern function __kfifo_in [2022-11-25 17:15:29,557 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irqsave [2022-11-25 17:15:29,558 WARN L623 FunctionHandler]: Unknown extern function __kfifo_max_r [2022-11-25 17:15:29,559 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-25 17:15:29,560 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irqsave [2022-11-25 17:15:29,562 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-25 17:15:29,566 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-25 17:15:29,567 WARN L623 FunctionHandler]: Unknown extern function usb_submit_urb [2022-11-25 17:15:29,567 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 17:15:29,569 WARN L623 FunctionHandler]: Unknown extern function usb_kill_urb [2022-11-25 17:15:29,571 WARN L623 FunctionHandler]: Unknown extern function tty_flip_buffer_push [2022-11-25 17:15:29,573 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-25 17:15:29,574 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-25 17:15:29,575 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irqsave [2022-11-25 17:15:29,577 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irqsave [2022-11-25 17:15:29,578 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-25 17:15:29,579 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irqsave [2022-11-25 17:15:29,580 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irqsave [2022-11-25 17:15:29,585 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irqsave [2022-11-25 17:15:29,588 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irqsave [2022-11-25 17:15:29,589 WARN L623 FunctionHandler]: Unknown extern function prepare_to_wait [2022-11-25 17:15:29,590 WARN L623 FunctionHandler]: Unknown extern function schedule [2022-11-25 17:15:29,591 WARN L623 FunctionHandler]: Unknown extern function finish_wait [2022-11-25 17:15:29,592 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irqsave [2022-11-25 17:15:29,595 WARN L623 FunctionHandler]: Unknown extern function handle_sysrq [2022-11-25 17:15:29,597 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-25 17:15:29,598 WARN L623 FunctionHandler]: Unknown extern function __wake_up [2022-11-25 17:15:29,598 WARN L623 FunctionHandler]: Unknown extern function tty_hangup [2022-11-25 17:15:29,603 WARN L623 FunctionHandler]: Unknown extern function ldv_handler_precall [2022-11-25 17:15:29,604 WARN L623 FunctionHandler]: Unknown extern function ldv_handler_precall [2022-11-25 17:15:29,604 WARN L623 FunctionHandler]: Unknown extern function ldv_handler_precall [2022-11-25 17:15:29,605 WARN L623 FunctionHandler]: Unknown extern function mutex_lock [2022-11-25 17:15:29,605 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-25 17:15:29,606 WARN L623 FunctionHandler]: Unknown extern function mutex_lock [2022-11-25 17:15:29,606 WARN L623 FunctionHandler]: Unknown extern function mutex_trylock [2022-11-25 17:15:29,607 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-25 17:15:29,654 WARN L623 FunctionHandler]: Unknown extern function sprintf [2022-11-25 17:15:29,659 WARN L623 FunctionHandler]: Unknown extern function usb_autopm_get_interface [2022-11-25 17:15:29,660 WARN L623 FunctionHandler]: Unknown extern function device_create_file [2022-11-25 17:15:29,661 WARN L623 FunctionHandler]: Unknown extern function tty_register_device [2022-11-25 17:15:29,661 WARN L623 FunctionHandler]: Unknown extern function _dev_info [2022-11-25 17:15:29,662 WARN L623 FunctionHandler]: Unknown extern function usb_autopm_put_interface [2022-11-25 17:15:29,666 WARN L623 FunctionHandler]: Unknown extern function usb_autopm_get_interface [2022-11-25 17:15:29,666 WARN L623 FunctionHandler]: Unknown extern function tty_unregister_device [2022-11-25 17:15:29,666 WARN L623 FunctionHandler]: Unknown extern function device_remove_file [2022-11-25 17:15:29,667 WARN L623 FunctionHandler]: Unknown extern function _dev_info [2022-11-25 17:15:29,668 WARN L623 FunctionHandler]: Unknown extern function usb_autopm_put_interface [2022-11-25 17:15:29,671 WARN L623 FunctionHandler]: Unknown extern function usb_store_new_id [2022-11-25 17:15:29,672 WARN L623 FunctionHandler]: Unknown extern function usb_store_new_id [2022-11-25 17:15:29,676 WARN L623 FunctionHandler]: Unknown extern function usb_show_dynids [2022-11-25 17:15:29,681 WARN L623 FunctionHandler]: Unknown extern function list_del [2022-11-25 17:15:29,681 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 17:15:29,683 WARN L623 FunctionHandler]: Unknown extern function __raw_spin_lock_init [2022-11-25 17:15:29,684 WARN L623 FunctionHandler]: Unknown extern function driver_register [2022-11-25 17:15:29,684 WARN L623 FunctionHandler]: Unknown extern function driver_unregister [2022-11-25 17:15:29,688 WARN L623 FunctionHandler]: Unknown extern function ldv_check_return_value [2022-11-25 17:15:29,688 WARN L623 FunctionHandler]: Unknown extern function ldv_check_return_value_probe [2022-11-25 17:15:29,689 WARN L623 FunctionHandler]: Unknown extern function ldv_handler_precall [2022-11-25 17:15:29,689 WARN L623 FunctionHandler]: Unknown extern function ldv_handler_precall [2022-11-25 17:15:29,690 WARN L623 FunctionHandler]: Unknown extern function mutex_lock [2022-11-25 17:15:29,690 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-25 17:15:29,691 WARN L623 FunctionHandler]: Unknown extern function mutex_lock [2022-11-25 17:15:29,692 WARN L623 FunctionHandler]: Unknown extern function mutex_trylock [2022-11-25 17:15:29,692 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-25 17:15:29,696 WARN L237 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_5a49dd73-9ef1-4e9b-8e53-d859215e526f/sv-benchmarks/c/ldv-consumption/linux-3.8-rc1-32_7a-drivers--usb--serial--usbserial.ko-ldv_main0.cil.out.i[258672,258685] [2022-11-25 17:15:29,810 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 17:15:29,856 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 17:15:29,949 WARN L623 FunctionHandler]: Unknown extern function __list_add [2022-11-25 17:15:29,951 WARN L623 FunctionHandler]: Unknown extern function __xadd_wrong_size [2022-11-25 17:15:29,952 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock [2022-11-25 17:15:29,953 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_unlock [2022-11-25 17:15:29,953 WARN L623 FunctionHandler]: Unknown extern function queue_work_on [2022-11-25 17:15:29,954 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-11-25 17:15:29,955 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-11-25 17:15:29,958 WARN L623 FunctionHandler]: Unknown extern function __tty_alloc_driver [2022-11-25 17:15:29,963 WARN L623 FunctionHandler]: Unknown extern function dev_get_drvdata [2022-11-25 17:15:29,963 WARN L623 FunctionHandler]: Unknown extern function dev_set_drvdata [2022-11-25 17:15:30,016 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-25 17:15:30,022 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-25 17:15:30,034 WARN L623 FunctionHandler]: Unknown extern function put_device [2022-11-25 17:15:30,035 WARN L623 FunctionHandler]: Unknown extern function usb_put_intf [2022-11-25 17:15:30,035 WARN L623 FunctionHandler]: Unknown extern function usb_put_dev [2022-11-25 17:15:30,035 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 17:15:30,037 WARN L623 FunctionHandler]: Unknown extern function try_module_get [2022-11-25 17:15:30,038 WARN L623 FunctionHandler]: Unknown extern function usb_autopm_get_interface [2022-11-25 17:15:30,038 WARN L623 FunctionHandler]: Unknown extern function tty_port_install [2022-11-25 17:15:30,040 WARN L623 FunctionHandler]: Unknown extern function usb_autopm_put_interface [2022-11-25 17:15:30,041 WARN L623 FunctionHandler]: Unknown extern function module_put [2022-11-25 17:15:30,054 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-25 17:15:30,056 WARN L623 FunctionHandler]: Unknown extern function tty_port_open [2022-11-25 17:15:30,061 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-25 17:15:30,063 WARN L623 FunctionHandler]: Unknown extern function tty_port_hangup [2022-11-25 17:15:30,064 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-25 17:15:30,067 WARN L623 FunctionHandler]: Unknown extern function tty_port_close [2022-11-25 17:15:30,069 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-25 17:15:30,073 WARN L623 FunctionHandler]: Unknown extern function usb_autopm_put_interface [2022-11-25 17:15:30,074 WARN L623 FunctionHandler]: Unknown extern function module_put [2022-11-25 17:15:30,075 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-25 17:15:30,081 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-25 17:15:30,090 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-25 17:15:30,094 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-25 17:15:30,100 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-25 17:15:30,104 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-25 17:15:30,113 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-25 17:15:30,117 WARN L623 FunctionHandler]: Unknown extern function tty_termios_copy_hw [2022-11-25 17:15:30,120 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-25 17:15:30,124 WARN L623 FunctionHandler]: Unknown extern function seq_puts [2022-11-25 17:15:30,125 WARN L623 FunctionHandler]: Unknown extern function seq_printf [2022-11-25 17:15:30,126 WARN L623 FunctionHandler]: Unknown extern function seq_printf [2022-11-25 17:15:30,127 WARN L623 FunctionHandler]: Unknown extern function seq_printf [2022-11-25 17:15:30,127 WARN L623 FunctionHandler]: Unknown extern function seq_printf [2022-11-25 17:15:30,127 WARN L623 FunctionHandler]: Unknown extern function seq_printf [2022-11-25 17:15:30,128 WARN L623 FunctionHandler]: Unknown extern function seq_printf [2022-11-25 17:15:30,128 WARN L623 FunctionHandler]: Unknown extern function seq_printf [2022-11-25 17:15:30,129 WARN L623 FunctionHandler]: Unknown extern function seq_putc [2022-11-25 17:15:30,129 WARN L623 FunctionHandler]: Unknown extern function single_open [2022-11-25 17:15:30,131 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-25 17:15:30,136 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-25 17:15:30,141 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-25 17:15:30,144 WARN L623 FunctionHandler]: Unknown extern function tty_port_tty_wakeup [2022-11-25 17:15:30,145 WARN L623 FunctionHandler]: Unknown extern function usb_poison_urb [2022-11-25 17:15:30,145 WARN L623 FunctionHandler]: Unknown extern function usb_poison_urb [2022-11-25 17:15:30,146 WARN L623 FunctionHandler]: Unknown extern function usb_poison_urb [2022-11-25 17:15:30,146 WARN L623 FunctionHandler]: Unknown extern function usb_poison_urb [2022-11-25 17:15:30,147 WARN L623 FunctionHandler]: Unknown extern function usb_unpoison_urb [2022-11-25 17:15:30,147 WARN L623 FunctionHandler]: Unknown extern function usb_unpoison_urb [2022-11-25 17:15:30,147 WARN L623 FunctionHandler]: Unknown extern function usb_unpoison_urb [2022-11-25 17:15:30,148 WARN L623 FunctionHandler]: Unknown extern function usb_unpoison_urb [2022-11-25 17:15:30,149 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-25 17:15:30,149 WARN L623 FunctionHandler]: Unknown extern function usb_free_urb [2022-11-25 17:15:30,150 WARN L623 FunctionHandler]: Unknown extern function usb_free_urb [2022-11-25 17:15:30,150 WARN L623 FunctionHandler]: Unknown extern function usb_free_urb [2022-11-25 17:15:30,150 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 17:15:30,151 WARN L623 FunctionHandler]: Unknown extern function usb_free_urb [2022-11-25 17:15:30,151 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 17:15:30,152 WARN L623 FunctionHandler]: Unknown extern function __kfifo_free [2022-11-25 17:15:30,152 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 17:15:30,152 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 17:15:30,152 WARN L623 FunctionHandler]: Unknown extern function tty_port_destroy [2022-11-25 17:15:30,153 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 17:15:30,153 WARN L623 FunctionHandler]: Unknown extern function usb_get_dev [2022-11-25 17:15:30,160 WARN L623 FunctionHandler]: Unknown extern function usb_get_intf [2022-11-25 17:15:30,160 WARN L623 FunctionHandler]: Unknown extern function __mutex_init [2022-11-25 17:15:30,161 WARN L623 FunctionHandler]: Unknown extern function usb_match_one_id [2022-11-25 17:15:30,163 WARN L623 FunctionHandler]: Unknown extern function usb_match_id [2022-11-25 17:15:30,164 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-25 17:15:30,166 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-25 17:15:30,205 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-25 17:15:30,206 WARN L623 FunctionHandler]: Unknown extern function try_module_get [2022-11-25 17:15:30,206 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 17:15:30,207 WARN L623 FunctionHandler]: Unknown extern function module_put [2022-11-25 17:15:30,209 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-25 17:15:30,209 WARN L623 FunctionHandler]: Unknown extern function module_put [2022-11-25 17:15:30,211 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-25 17:15:30,212 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-25 17:15:30,214 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-25 17:15:30,215 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-25 17:15:30,218 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-25 17:15:30,219 WARN L623 FunctionHandler]: Unknown extern function _dev_info [2022-11-25 17:15:30,219 WARN L623 FunctionHandler]: Unknown extern function module_put [2022-11-25 17:15:30,220 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 17:15:30,221 WARN L623 FunctionHandler]: Unknown extern function module_put [2022-11-25 17:15:30,221 WARN L623 FunctionHandler]: Unknown extern function _dev_info [2022-11-25 17:15:30,221 WARN L623 FunctionHandler]: Unknown extern function _dev_info [2022-11-25 17:15:30,223 WARN L623 FunctionHandler]: Unknown extern function _dev_info [2022-11-25 17:15:30,224 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-25 17:15:30,225 WARN L623 FunctionHandler]: Unknown extern function tty_port_init [2022-11-25 17:15:30,228 WARN L623 FunctionHandler]: Unknown extern function __raw_spin_lock_init [2022-11-25 17:15:30,228 WARN L623 FunctionHandler]: Unknown extern function __init_work [2022-11-25 17:15:30,229 WARN L623 FunctionHandler]: Unknown extern function lockdep_init_map [2022-11-25 17:15:30,232 WARN L623 FunctionHandler]: Unknown extern function device_initialize [2022-11-25 17:15:30,234 WARN L623 FunctionHandler]: Unknown extern function usb_alloc_urb [2022-11-25 17:15:30,238 WARN L623 FunctionHandler]: Unknown extern function __kfifo_alloc [2022-11-25 17:15:30,239 WARN L623 FunctionHandler]: Unknown extern function usb_alloc_urb [2022-11-25 17:15:30,243 WARN L623 FunctionHandler]: Unknown extern function usb_alloc_urb [2022-11-25 17:15:30,247 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-25 17:15:30,248 WARN L623 FunctionHandler]: Unknown extern function usb_alloc_urb [2022-11-25 17:15:30,252 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-25 17:15:30,253 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 17:15:30,254 WARN L623 FunctionHandler]: Unknown extern function dev_set_name [2022-11-25 17:15:30,255 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-25 17:15:30,256 WARN L623 FunctionHandler]: Unknown extern function device_add [2022-11-25 17:15:30,256 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 17:15:30,257 WARN L623 FunctionHandler]: Unknown extern function module_put [2022-11-25 17:15:30,257 WARN L623 FunctionHandler]: Unknown extern function module_put [2022-11-25 17:15:30,260 WARN L623 FunctionHandler]: Unknown extern function tty_port_tty_get [2022-11-25 17:15:30,260 WARN L623 FunctionHandler]: Unknown extern function tty_vhangup [2022-11-25 17:15:30,261 WARN L623 FunctionHandler]: Unknown extern function tty_kref_put [2022-11-25 17:15:30,261 WARN L623 FunctionHandler]: Unknown extern function __wake_up [2022-11-25 17:15:30,261 WARN L623 FunctionHandler]: Unknown extern function cancel_work_sync [2022-11-25 17:15:30,262 WARN L623 FunctionHandler]: Unknown extern function device_del [2022-11-25 17:15:30,265 WARN L623 FunctionHandler]: Unknown extern function _dev_info [2022-11-25 17:15:30,277 WARN L623 FunctionHandler]: Unknown extern function bus_register [2022-11-25 17:15:30,277 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:15:30,280 WARN L623 FunctionHandler]: Unknown extern function tty_set_operations [2022-11-25 17:15:30,280 WARN L623 FunctionHandler]: Unknown extern function tty_register_driver [2022-11-25 17:15:30,281 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:15:30,281 WARN L623 FunctionHandler]: Unknown extern function usb_register_driver [2022-11-25 17:15:30,282 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:15:30,282 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:15:30,283 WARN L623 FunctionHandler]: Unknown extern function usb_deregister [2022-11-25 17:15:30,283 WARN L623 FunctionHandler]: Unknown extern function tty_unregister_driver [2022-11-25 17:15:30,283 WARN L623 FunctionHandler]: Unknown extern function bus_unregister [2022-11-25 17:15:30,284 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:15:30,284 WARN L623 FunctionHandler]: Unknown extern function put_tty_driver [2022-11-25 17:15:30,284 WARN L623 FunctionHandler]: Unknown extern function usb_deregister [2022-11-25 17:15:30,285 WARN L623 FunctionHandler]: Unknown extern function tty_unregister_driver [2022-11-25 17:15:30,285 WARN L623 FunctionHandler]: Unknown extern function put_tty_driver [2022-11-25 17:15:30,285 WARN L623 FunctionHandler]: Unknown extern function bus_unregister [2022-11-25 17:15:30,287 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-11-25 17:15:30,289 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-11-25 17:15:30,290 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-11-25 17:15:30,292 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-11-25 17:15:30,293 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-11-25 17:15:30,295 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-11-25 17:15:30,296 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-11-25 17:15:30,298 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-11-25 17:15:30,299 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-11-25 17:15:30,300 WARN L623 FunctionHandler]: Unknown extern function usb_disabled [2022-11-25 17:15:30,301 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_fmt [2022-11-25 17:15:30,302 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:15:30,303 WARN L623 FunctionHandler]: Unknown extern function list_del [2022-11-25 17:15:30,303 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:15:30,304 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:15:30,304 WARN L623 FunctionHandler]: Unknown extern function list_del [2022-11-25 17:15:30,306 WARN L623 FunctionHandler]: Unknown extern function usb_register_driver [2022-11-25 17:15:30,307 WARN L623 FunctionHandler]: Unknown extern function driver_attach [2022-11-25 17:15:30,308 WARN L623 FunctionHandler]: Unknown extern function usb_deregister [2022-11-25 17:15:30,309 WARN L623 FunctionHandler]: Unknown extern function usb_deregister [2022-11-25 17:15:30,309 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 17:15:30,310 WARN L623 FunctionHandler]: Unknown extern function ldv_handler_precall [2022-11-25 17:15:30,311 WARN L623 FunctionHandler]: Unknown extern function ldv_handler_precall [2022-11-25 17:15:30,311 WARN L623 FunctionHandler]: Unknown extern function ldv_check_return_value [2022-11-25 17:15:30,312 WARN L623 FunctionHandler]: Unknown extern function ldv_handler_precall [2022-11-25 17:15:30,312 WARN L623 FunctionHandler]: Unknown extern function ldv_handler_precall [2022-11-25 17:15:30,313 WARN L623 FunctionHandler]: Unknown extern function ldv_handler_precall [2022-11-25 17:15:30,313 WARN L623 FunctionHandler]: Unknown extern function ldv_handler_precall [2022-11-25 17:15:30,313 WARN L623 FunctionHandler]: Unknown extern function ldv_handler_precall [2022-11-25 17:15:30,314 WARN L623 FunctionHandler]: Unknown extern function ldv_check_return_value [2022-11-25 17:15:30,314 WARN L623 FunctionHandler]: Unknown extern function ldv_handler_precall [2022-11-25 17:15:30,314 WARN L623 FunctionHandler]: Unknown extern function ldv_handler_precall [2022-11-25 17:15:30,315 WARN L623 FunctionHandler]: Unknown extern function ldv_handler_precall [2022-11-25 17:15:30,315 WARN L623 FunctionHandler]: Unknown extern function ldv_handler_precall [2022-11-25 17:15:30,315 WARN L623 FunctionHandler]: Unknown extern function ldv_handler_precall [2022-11-25 17:15:30,316 WARN L623 FunctionHandler]: Unknown extern function ldv_handler_precall [2022-11-25 17:15:30,316 WARN L623 FunctionHandler]: Unknown extern function ldv_handler_precall [2022-11-25 17:15:30,316 WARN L623 FunctionHandler]: Unknown extern function ldv_handler_precall [2022-11-25 17:15:30,316 WARN L623 FunctionHandler]: Unknown extern function ldv_handler_precall [2022-11-25 17:15:30,317 WARN L623 FunctionHandler]: Unknown extern function ldv_handler_precall [2022-11-25 17:15:30,317 WARN L623 FunctionHandler]: Unknown extern function ldv_handler_precall [2022-11-25 17:15:30,317 WARN L623 FunctionHandler]: Unknown extern function ldv_handler_precall [2022-11-25 17:15:30,318 WARN L623 FunctionHandler]: Unknown extern function ldv_handler_precall [2022-11-25 17:15:30,318 WARN L623 FunctionHandler]: Unknown extern function ldv_handler_precall [2022-11-25 17:15:30,318 WARN L623 FunctionHandler]: Unknown extern function ldv_handler_precall [2022-11-25 17:15:30,319 WARN L623 FunctionHandler]: Unknown extern function ldv_check_return_value [2022-11-25 17:15:30,319 WARN L623 FunctionHandler]: Unknown extern function ldv_check_return_value_probe [2022-11-25 17:15:30,320 WARN L623 FunctionHandler]: Unknown extern function ldv_handler_precall [2022-11-25 17:15:30,320 WARN L623 FunctionHandler]: Unknown extern function ldv_handler_precall [2022-11-25 17:15:30,320 WARN L623 FunctionHandler]: Unknown extern function ldv_handler_precall [2022-11-25 17:15:30,321 WARN L623 FunctionHandler]: Unknown extern function ldv_handler_precall [2022-11-25 17:15:30,322 WARN L623 FunctionHandler]: Unknown extern function mutex_lock [2022-11-25 17:15:30,322 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-25 17:15:30,323 WARN L623 FunctionHandler]: Unknown extern function mutex_lock [2022-11-25 17:15:30,323 WARN L623 FunctionHandler]: Unknown extern function mutex_trylock [2022-11-25 17:15:30,323 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-25 17:15:30,324 WARN L623 FunctionHandler]: Unknown extern function mutex_lock [2022-11-25 17:15:30,324 WARN L623 FunctionHandler]: Unknown extern function mutex_lock [2022-11-25 17:15:30,324 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-25 17:15:30,325 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-25 17:15:30,325 WARN L623 FunctionHandler]: Unknown extern function mutex_lock [2022-11-25 17:15:30,325 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-25 17:15:30,326 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-25 17:15:30,326 WARN L623 FunctionHandler]: Unknown extern function mutex_lock [2022-11-25 17:15:30,326 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-25 17:15:30,327 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-25 17:15:30,327 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-25 17:15:30,327 WARN L623 FunctionHandler]: Unknown extern function mutex_lock [2022-11-25 17:15:30,328 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-25 17:15:30,328 WARN L623 FunctionHandler]: Unknown extern function mutex_lock [2022-11-25 17:15:30,328 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-25 17:15:30,329 WARN L623 FunctionHandler]: Unknown extern function mutex_lock [2022-11-25 17:15:30,329 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-25 17:15:30,329 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-25 17:15:30,329 WARN L623 FunctionHandler]: Unknown extern function mutex_lock [2022-11-25 17:15:30,330 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-25 17:15:30,330 WARN L623 FunctionHandler]: Unknown extern function mutex_lock [2022-11-25 17:15:30,330 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-25 17:15:30,331 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-25 17:15:30,331 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-25 17:15:30,331 WARN L623 FunctionHandler]: Unknown extern function mutex_lock [2022-11-25 17:15:30,332 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-25 17:15:30,332 WARN L623 FunctionHandler]: Unknown extern function mutex_lock [2022-11-25 17:15:30,332 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-25 17:15:30,333 WARN L623 FunctionHandler]: Unknown extern function mutex_lock [2022-11-25 17:15:30,333 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-25 17:15:30,335 WARN L623 FunctionHandler]: Unknown extern function __bad_percpu_size [2022-11-25 17:15:30,336 WARN L623 FunctionHandler]: Unknown extern function __bad_percpu_size [2022-11-25 17:15:30,337 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irq [2022-11-25 17:15:30,337 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_unlock_irq [2022-11-25 17:15:30,338 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_unlock_irqrestore [2022-11-25 17:15:30,340 WARN L623 FunctionHandler]: Unknown extern function tty_insert_flip_string_flags [2022-11-25 17:15:30,340 WARN L623 FunctionHandler]: Unknown extern function tty_insert_flip_string_fixed_flag [2022-11-25 17:15:30,343 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-25 17:15:30,347 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irqsave [2022-11-25 17:15:30,348 WARN L623 FunctionHandler]: Unknown extern function usb_kill_urb [2022-11-25 17:15:30,348 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irqsave [2022-11-25 17:15:30,349 WARN L623 FunctionHandler]: Unknown extern function usb_kill_urb [2022-11-25 17:15:30,350 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irqsave [2022-11-25 17:15:30,351 WARN L623 FunctionHandler]: Unknown extern function __kfifo_out_r [2022-11-25 17:15:30,351 WARN L623 FunctionHandler]: Unknown extern function __kfifo_out [2022-11-25 17:15:30,353 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irqsave [2022-11-25 17:15:30,354 WARN L623 FunctionHandler]: Unknown extern function find_first_bit [2022-11-25 17:15:30,357 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irqsave [2022-11-25 17:15:30,357 WARN L623 FunctionHandler]: Unknown extern function usb_submit_urb [2022-11-25 17:15:30,358 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 17:15:30,359 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irqsave [2022-11-25 17:15:30,360 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irqsave [2022-11-25 17:15:30,361 WARN L623 FunctionHandler]: Unknown extern function __kfifo_in_r [2022-11-25 17:15:30,361 WARN L623 FunctionHandler]: Unknown extern function __kfifo_in [2022-11-25 17:15:30,363 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irqsave [2022-11-25 17:15:30,364 WARN L623 FunctionHandler]: Unknown extern function __kfifo_max_r [2022-11-25 17:15:30,365 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-25 17:15:30,366 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irqsave [2022-11-25 17:15:30,368 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-25 17:15:30,370 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-25 17:15:30,370 WARN L623 FunctionHandler]: Unknown extern function usb_submit_urb [2022-11-25 17:15:30,371 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 17:15:30,372 WARN L623 FunctionHandler]: Unknown extern function usb_kill_urb [2022-11-25 17:15:30,374 WARN L623 FunctionHandler]: Unknown extern function tty_flip_buffer_push [2022-11-25 17:15:30,376 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-25 17:15:30,377 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-25 17:15:30,380 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irqsave [2022-11-25 17:15:30,382 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irqsave [2022-11-25 17:15:30,383 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-25 17:15:30,384 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irqsave [2022-11-25 17:15:30,385 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irqsave [2022-11-25 17:15:30,387 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irqsave [2022-11-25 17:15:30,391 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irqsave [2022-11-25 17:15:30,392 WARN L623 FunctionHandler]: Unknown extern function prepare_to_wait [2022-11-25 17:15:30,393 WARN L623 FunctionHandler]: Unknown extern function schedule [2022-11-25 17:15:30,393 WARN L623 FunctionHandler]: Unknown extern function finish_wait [2022-11-25 17:15:30,395 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irqsave [2022-11-25 17:15:30,397 WARN L623 FunctionHandler]: Unknown extern function handle_sysrq [2022-11-25 17:15:30,399 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-25 17:15:30,400 WARN L623 FunctionHandler]: Unknown extern function __wake_up [2022-11-25 17:15:30,401 WARN L623 FunctionHandler]: Unknown extern function tty_hangup [2022-11-25 17:15:30,403 WARN L623 FunctionHandler]: Unknown extern function ldv_handler_precall [2022-11-25 17:15:30,403 WARN L623 FunctionHandler]: Unknown extern function ldv_handler_precall [2022-11-25 17:15:30,403 WARN L623 FunctionHandler]: Unknown extern function ldv_handler_precall [2022-11-25 17:15:30,404 WARN L623 FunctionHandler]: Unknown extern function mutex_lock [2022-11-25 17:15:30,404 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-25 17:15:30,405 WARN L623 FunctionHandler]: Unknown extern function mutex_lock [2022-11-25 17:15:30,405 WARN L623 FunctionHandler]: Unknown extern function mutex_trylock [2022-11-25 17:15:30,406 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-25 17:15:30,407 WARN L623 FunctionHandler]: Unknown extern function sprintf [2022-11-25 17:15:30,409 WARN L623 FunctionHandler]: Unknown extern function usb_autopm_get_interface [2022-11-25 17:15:30,415 WARN L623 FunctionHandler]: Unknown extern function device_create_file [2022-11-25 17:15:30,415 WARN L623 FunctionHandler]: Unknown extern function tty_register_device [2022-11-25 17:15:30,416 WARN L623 FunctionHandler]: Unknown extern function _dev_info [2022-11-25 17:15:30,417 WARN L623 FunctionHandler]: Unknown extern function usb_autopm_put_interface [2022-11-25 17:15:30,419 WARN L623 FunctionHandler]: Unknown extern function usb_autopm_get_interface [2022-11-25 17:15:30,420 WARN L623 FunctionHandler]: Unknown extern function tty_unregister_device [2022-11-25 17:15:30,421 WARN L623 FunctionHandler]: Unknown extern function device_remove_file [2022-11-25 17:15:30,424 WARN L623 FunctionHandler]: Unknown extern function _dev_info [2022-11-25 17:15:30,424 WARN L623 FunctionHandler]: Unknown extern function usb_autopm_put_interface [2022-11-25 17:15:30,426 WARN L623 FunctionHandler]: Unknown extern function usb_store_new_id [2022-11-25 17:15:30,427 WARN L623 FunctionHandler]: Unknown extern function usb_store_new_id [2022-11-25 17:15:30,427 WARN L623 FunctionHandler]: Unknown extern function usb_show_dynids [2022-11-25 17:15:30,429 WARN L623 FunctionHandler]: Unknown extern function list_del [2022-11-25 17:15:30,429 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 17:15:30,431 WARN L623 FunctionHandler]: Unknown extern function __raw_spin_lock_init [2022-11-25 17:15:30,431 WARN L623 FunctionHandler]: Unknown extern function driver_register [2022-11-25 17:15:30,432 WARN L623 FunctionHandler]: Unknown extern function driver_unregister [2022-11-25 17:15:30,432 WARN L623 FunctionHandler]: Unknown extern function ldv_check_return_value [2022-11-25 17:15:30,433 WARN L623 FunctionHandler]: Unknown extern function ldv_check_return_value_probe [2022-11-25 17:15:30,433 WARN L623 FunctionHandler]: Unknown extern function ldv_handler_precall [2022-11-25 17:15:30,433 WARN L623 FunctionHandler]: Unknown extern function ldv_handler_precall [2022-11-25 17:15:30,434 WARN L623 FunctionHandler]: Unknown extern function mutex_lock [2022-11-25 17:15:30,434 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-25 17:15:30,434 WARN L623 FunctionHandler]: Unknown extern function mutex_lock [2022-11-25 17:15:30,435 WARN L623 FunctionHandler]: Unknown extern function mutex_trylock [2022-11-25 17:15:30,435 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-25 17:15:30,436 WARN L237 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_5a49dd73-9ef1-4e9b-8e53-d859215e526f/sv-benchmarks/c/ldv-consumption/linux-3.8-rc1-32_7a-drivers--usb--serial--usbserial.ko-ldv_main0.cil.out.i[258672,258685] [2022-11-25 17:15:30,448 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 17:15:30,587 INFO L208 MainTranslator]: Completed translation [2022-11-25 17:15:30,587 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:15:30 WrapperNode [2022-11-25 17:15:30,587 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 17:15:30,588 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 17:15:30,589 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 17:15:30,589 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 17:15:30,597 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:15:30" (1/1) ... [2022-11-25 17:15:30,668 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:15:30" (1/1) ... [2022-11-25 17:15:30,870 INFO L138 Inliner]: procedures = 373, calls = 2979, calls flagged for inlining = 172, calls inlined = 164, statements flattened = 5902 [2022-11-25 17:15:30,871 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 17:15:30,871 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 17:15:30,871 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 17:15:30,871 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 17:15:30,881 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:15:30" (1/1) ... [2022-11-25 17:15:30,881 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:15:30" (1/1) ... [2022-11-25 17:15:30,936 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:15:30" (1/1) ... [2022-11-25 17:15:30,938 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:15:30" (1/1) ... [2022-11-25 17:15:31,120 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:15:30" (1/1) ... [2022-11-25 17:15:31,138 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:15:30" (1/1) ... [2022-11-25 17:15:31,166 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:15:30" (1/1) ... [2022-11-25 17:15:31,179 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:15:30" (1/1) ... [2022-11-25 17:15:31,217 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 17:15:31,218 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 17:15:31,218 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 17:15:31,218 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 17:15:31,219 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:15:30" (1/1) ... [2022-11-25 17:15:31,226 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 17:15:31,238 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a49dd73-9ef1-4e9b-8e53-d859215e526f/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:15:31,257 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a49dd73-9ef1-4e9b-8e53-d859215e526f/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 17:15:31,287 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a49dd73-9ef1-4e9b-8e53-d859215e526f/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 17:15:31,347 INFO L130 BoogieDeclarations]: Found specification of procedure serial_break [2022-11-25 17:15:31,362 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_break [2022-11-25 17:15:31,362 INFO L130 BoogieDeclarations]: Found specification of procedure serial_proc_open [2022-11-25 17:15:31,363 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_proc_open [2022-11-25 17:15:31,363 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_generic_throttle [2022-11-25 17:15:31,363 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_generic_throttle [2022-11-25 17:15:31,363 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_generic_write_start [2022-11-25 17:15:31,363 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_generic_write_start [2022-11-25 17:15:31,363 INFO L130 BoogieDeclarations]: Found specification of procedure usb_get_intfdata [2022-11-25 17:15:31,363 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_get_intfdata [2022-11-25 17:15:31,364 INFO L130 BoogieDeclarations]: Found specification of procedure usb_submit_urb [2022-11-25 17:15:31,364 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_submit_urb [2022-11-25 17:15:31,364 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~int~TO~int [2022-11-25 17:15:31,364 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~int~TO~int [2022-11-25 17:15:31,364 INFO L130 BoogieDeclarations]: Found specification of procedure kref_sub [2022-11-25 17:15:31,364 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_sub [2022-11-25 17:15:31,364 INFO L130 BoogieDeclarations]: Found specification of procedure usb_translate_errors [2022-11-25 17:15:31,364 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_translate_errors [2022-11-25 17:15:31,365 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_xfer_int [2022-11-25 17:15:31,365 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_xfer_int [2022-11-25 17:15:31,365 INFO L130 BoogieDeclarations]: Found specification of procedure serial_port_dtr_rts [2022-11-25 17:15:31,365 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_port_dtr_rts [2022-11-25 17:15:31,365 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_device_remove [2022-11-25 17:15:31,365 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_device_remove [2022-11-25 17:15:31,365 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_generic_write [2022-11-25 17:15:31,366 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_generic_write [2022-11-25 17:15:31,366 INFO L130 BoogieDeclarations]: Found specification of procedure serial_chars_in_buffer [2022-11-25 17:15:31,366 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_chars_in_buffer [2022-11-25 17:15:31,366 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-25 17:15:31,366 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-25 17:15:31,366 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_maxp [2022-11-25 17:15:31,366 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_maxp [2022-11-25 17:15:31,366 INFO L130 BoogieDeclarations]: Found specification of procedure serial_port_activate [2022-11-25 17:15:31,367 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_port_activate [2022-11-25 17:15:31,367 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit_unlock [2022-11-25 17:15:31,367 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit_unlock [2022-11-25 17:15:31,367 INFO L130 BoogieDeclarations]: Found specification of procedure usb_autopm_get_interface [2022-11-25 17:15:31,367 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_autopm_get_interface [2022-11-25 17:15:31,367 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-11-25 17:15:31,367 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-11-25 17:15:31,368 INFO L130 BoogieDeclarations]: Found specification of procedure usb_fill_bulk_urb [2022-11-25 17:15:31,368 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_fill_bulk_urb [2022-11-25 17:15:31,368 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-11-25 17:15:31,368 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-11-25 17:15:31,368 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_suspend [2022-11-25 17:15:31,368 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_suspend [2022-11-25 17:15:31,368 INFO L130 BoogieDeclarations]: Found specification of procedure usb_store_new_id [2022-11-25 17:15:31,369 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_store_new_id [2022-11-25 17:15:31,369 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_dir_in [2022-11-25 17:15:31,369 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_dir_in [2022-11-25 17:15:31,369 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_is_int_in [2022-11-25 17:15:31,369 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_is_int_in [2022-11-25 17:15:31,369 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_return_value [2022-11-25 17:15:31,369 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_return_value [2022-11-25 17:15:31,369 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2022-11-25 17:15:31,370 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2022-11-25 17:15:31,370 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_get_by_index [2022-11-25 17:15:31,370 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_get_by_index [2022-11-25 17:15:31,370 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_port_poison_urbs [2022-11-25 17:15:31,370 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_port_poison_urbs [2022-11-25 17:15:31,370 INFO L130 BoogieDeclarations]: Found specification of procedure serial_hangup [2022-11-25 17:15:31,370 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_hangup [2022-11-25 17:15:31,371 INFO L130 BoogieDeclarations]: Found specification of procedure serial_ioctl [2022-11-25 17:15:31,371 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_ioctl [2022-11-25 17:15:31,371 INFO L130 BoogieDeclarations]: Found specification of procedure serial_write_room [2022-11-25 17:15:31,371 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_write_room [2022-11-25 17:15:31,371 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_disc_mutex_of_usb_serial [2022-11-25 17:15:31,371 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_disc_mutex_of_usb_serial [2022-11-25 17:15:31,371 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2022-11-25 17:15:31,372 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2022-11-25 17:15:31,372 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_debug_data [2022-11-25 17:15:31,372 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_debug_data [2022-11-25 17:15:31,372 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~TO~VOID [2022-11-25 17:15:31,372 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~TO~VOID [2022-11-25 17:15:31,372 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-11-25 17:15:31,372 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-11-25 17:15:31,372 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-25 17:15:31,373 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-11-25 17:15:31,373 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-11-25 17:15:31,373 INFO L130 BoogieDeclarations]: Found specification of procedure serial_unthrottle [2022-11-25 17:15:31,373 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_unthrottle [2022-11-25 17:15:31,373 INFO L130 BoogieDeclarations]: Found specification of procedure usb_unpoison_urb [2022-11-25 17:15:31,373 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_unpoison_urb [2022-11-25 17:15:31,373 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_generic_submit_read_urbs [2022-11-25 17:15:31,374 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_generic_submit_read_urbs [2022-11-25 17:15:31,374 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_device_probe [2022-11-25 17:15:31,374 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_device_probe [2022-11-25 17:15:31,374 INFO L130 BoogieDeclarations]: Found specification of procedure module_put [2022-11-25 17:15:31,374 INFO L138 BoogieDeclarations]: Found implementation of procedure module_put [2022-11-25 17:15:31,374 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_return_value_probe [2022-11-25 17:15:31,374 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_return_value_probe [2022-11-25 17:15:31,375 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-25 17:15:31,375 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~int [2022-11-25 17:15:31,375 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~int [2022-11-25 17:15:31,375 INFO L130 BoogieDeclarations]: Found specification of procedure __xadd_wrong_size [2022-11-25 17:15:31,375 INFO L130 BoogieDeclarations]: Found specification of procedure serial_get_icount [2022-11-25 17:15:31,375 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_get_icount [2022-11-25 17:15:31,375 INFO L130 BoogieDeclarations]: Found specification of procedure serial_throttle [2022-11-25 17:15:31,375 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_throttle [2022-11-25 17:15:31,376 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-11-25 17:15:31,376 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-11-25 17:15:31,376 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_generic_submit_read_urb [2022-11-25 17:15:31,376 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_generic_submit_read_urb [2022-11-25 17:15:31,376 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-25 17:15:31,376 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-25 17:15:31,376 INFO L130 BoogieDeclarations]: Found specification of procedure try_module_get [2022-11-25 17:15:31,377 INFO L138 BoogieDeclarations]: Found implementation of procedure try_module_get [2022-11-25 17:15:31,377 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~X~int~TO~int [2022-11-25 17:15:31,377 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~X~int~TO~int [2022-11-25 17:15:31,377 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2022-11-25 17:15:31,377 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2022-11-25 17:15:31,377 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_deregister [2022-11-25 17:15:31,377 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_deregister [2022-11-25 17:15:31,378 INFO L130 BoogieDeclarations]: Found specification of procedure put_tty_driver [2022-11-25 17:15:31,378 INFO L138 BoogieDeclarations]: Found implementation of procedure put_tty_driver [2022-11-25 17:15:31,378 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2022-11-25 17:15:31,378 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2022-11-25 17:15:31,378 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_generic_resume [2022-11-25 17:15:31,378 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_generic_resume [2022-11-25 17:15:31,378 INFO L130 BoogieDeclarations]: Found specification of procedure serial_cleanup [2022-11-25 17:15:31,378 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_cleanup [2022-11-25 17:15:31,379 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-11-25 17:15:31,379 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-11-25 17:15:31,379 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2022-11-25 17:15:31,379 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2022-11-25 17:15:31,379 INFO L130 BoogieDeclarations]: Found specification of procedure serial_port_carrier_raised [2022-11-25 17:15:31,379 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_port_carrier_raised [2022-11-25 17:15:31,379 INFO L130 BoogieDeclarations]: Found specification of procedure __kfifo_uint_must_check_helper [2022-11-25 17:15:31,380 INFO L138 BoogieDeclarations]: Found implementation of procedure __kfifo_uint_must_check_helper [2022-11-25 17:15:31,380 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2022-11-25 17:15:31,394 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2022-11-25 17:15:31,395 INFO L130 BoogieDeclarations]: Found specification of procedure serial_tiocmget [2022-11-25 17:15:31,395 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_tiocmget [2022-11-25 17:15:31,395 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_handler_precall [2022-11-25 17:15:31,395 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_handler_precall [2022-11-25 17:15:31,395 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_urb [2022-11-25 17:15:31,395 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_urb [2022-11-25 17:15:31,396 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_probe [2022-11-25 17:15:31,396 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_probe [2022-11-25 17:15:31,396 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2022-11-25 17:15:31,396 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2022-11-25 17:15:31,396 INFO L130 BoogieDeclarations]: Found specification of procedure bus_unregister [2022-11-25 17:15:31,396 INFO L138 BoogieDeclarations]: Found implementation of procedure bus_unregister [2022-11-25 17:15:31,396 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_reset_resume [2022-11-25 17:15:31,397 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_reset_resume [2022-11-25 17:15:31,397 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_generic_read_bulk_callback [2022-11-25 17:15:31,397 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_generic_read_bulk_callback [2022-11-25 17:15:31,397 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2022-11-25 17:15:31,397 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2022-11-25 17:15:31,397 INFO L130 BoogieDeclarations]: Found specification of procedure usb_poison_urb [2022-11-25 17:15:31,397 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_poison_urb [2022-11-25 17:15:31,398 INFO L130 BoogieDeclarations]: Found specification of procedure usb_autopm_put_interface [2022-11-25 17:15:31,398 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_autopm_put_interface [2022-11-25 17:15:31,398 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-25 17:15:31,398 INFO L130 BoogieDeclarations]: Found specification of procedure usb_deregister [2022-11-25 17:15:31,398 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_deregister [2022-11-25 17:15:31,398 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_xfer_bulk [2022-11-25 17:15:31,398 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_xfer_bulk [2022-11-25 17:15:31,398 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2022-11-25 17:15:31,399 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2022-11-25 17:15:31,399 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_device_match [2022-11-25 17:15:31,399 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_device_match [2022-11-25 17:15:31,399 INFO L130 BoogieDeclarations]: Found specification of procedure serial_open [2022-11-25 17:15:31,399 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_open [2022-11-25 17:15:31,399 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-11-25 17:15:31,399 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-11-25 17:15:31,399 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_urb [2022-11-25 17:15:31,400 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_urb [2022-11-25 17:15:31,400 INFO L130 BoogieDeclarations]: Found specification of procedure serial_port_shutdown [2022-11-25 17:15:31,400 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_port_shutdown [2022-11-25 17:15:31,400 INFO L130 BoogieDeclarations]: Found specification of procedure usb_fill_int_urb [2022-11-25 17:15:31,400 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_fill_int_urb [2022-11-25 17:15:31,400 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-25 17:15:31,400 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-25 17:15:31,401 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~pm_message_t~0~TO~int [2022-11-25 17:15:31,401 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~pm_message_t~0~TO~int [2022-11-25 17:15:31,401 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-25 17:15:31,401 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_resume [2022-11-25 17:15:31,401 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_resume [2022-11-25 17:15:31,401 INFO L130 BoogieDeclarations]: Found specification of procedure single_release [2022-11-25 17:15:31,401 INFO L130 BoogieDeclarations]: Found specification of procedure kref_put [2022-11-25 17:15:31,401 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_put [2022-11-25 17:15:31,402 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-25 17:15:31,402 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-25 17:15:31,402 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_disconnect [2022-11-25 17:15:31,402 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_disconnect [2022-11-25 17:15:31,402 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_generic_unthrottle [2022-11-25 17:15:31,402 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_generic_unthrottle [2022-11-25 17:15:31,402 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_disc_mutex_of_usb_serial [2022-11-25 17:15:31,403 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_disc_mutex_of_usb_serial [2022-11-25 17:15:31,403 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-25 17:15:31,403 INFO L130 BoogieDeclarations]: Found specification of procedure serial_install [2022-11-25 17:15:31,403 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_install [2022-11-25 17:15:31,403 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-25 17:15:31,403 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-25 17:15:31,404 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-11-25 17:15:31,404 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-11-25 17:15:31,404 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-11-25 17:15:31,404 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2022-11-25 17:15:31,404 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2022-11-25 17:15:31,404 INFO L130 BoogieDeclarations]: Found specification of procedure serial_tiocmset [2022-11-25 17:15:31,404 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_tiocmset [2022-11-25 17:15:31,405 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_table_lock [2022-11-25 17:15:31,405 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_table_lock [2022-11-25 17:15:31,405 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2022-11-25 17:15:31,405 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2022-11-25 17:15:31,405 INFO L130 BoogieDeclarations]: Found specification of procedure usb_register_driver [2022-11-25 17:15:31,405 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_register_driver [2022-11-25 17:15:31,405 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_table_lock [2022-11-25 17:15:31,405 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_table_lock [2022-11-25 17:15:31,406 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_urb [2022-11-25 17:15:31,406 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_urb [2022-11-25 17:15:31,406 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_put [2022-11-25 17:15:31,406 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_put [2022-11-25 17:15:31,406 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_unpoison_port_urbs [2022-11-25 17:15:31,406 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_unpoison_port_urbs [2022-11-25 17:15:31,406 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-11-25 17:15:31,407 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-11-25 17:15:31,407 INFO L130 BoogieDeclarations]: Found specification of procedure serial_write [2022-11-25 17:15:31,407 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_write [2022-11-25 17:15:31,407 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2022-11-25 17:15:31,407 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2022-11-25 17:15:31,407 INFO L130 BoogieDeclarations]: Found specification of procedure destroy_serial [2022-11-25 17:15:31,407 INFO L138 BoogieDeclarations]: Found implementation of procedure destroy_serial [2022-11-25 17:15:31,407 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2022-11-25 17:15:31,408 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2022-11-25 17:15:31,408 INFO L130 BoogieDeclarations]: Found specification of procedure get_iface_id [2022-11-25 17:15:31,408 INFO L138 BoogieDeclarations]: Found implementation of procedure get_iface_id [2022-11-25 17:15:31,408 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2022-11-25 17:15:31,408 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2022-11-25 17:15:31,408 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-25 17:15:31,408 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2022-11-25 17:15:31,408 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2022-11-25 17:15:31,409 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 17:15:31,409 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 17:15:31,409 INFO L130 BoogieDeclarations]: Found specification of procedure tty_unregister_driver [2022-11-25 17:15:31,409 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_unregister_driver [2022-11-25 17:15:31,409 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_dir_out [2022-11-25 17:15:31,409 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_dir_out [2022-11-25 17:15:32,316 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 17:15:32,325 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 17:15:42,514 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 17:15:42,548 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 17:15:42,548 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-25 17:15:42,555 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:15:42 BoogieIcfgContainer [2022-11-25 17:15:42,555 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 17:15:42,558 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 17:15:42,558 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 17:15:42,562 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 17:15:42,562 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 05:15:27" (1/3) ... [2022-11-25 17:15:42,564 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8bf411c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 05:15:42, skipping insertion in model container [2022-11-25 17:15:42,565 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:15:30" (2/3) ... [2022-11-25 17:15:42,566 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8bf411c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 05:15:42, skipping insertion in model container [2022-11-25 17:15:42,567 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:15:42" (3/3) ... [2022-11-25 17:15:42,568 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.8-rc1-32_7a-drivers--usb--serial--usbserial.ko-ldv_main0.cil.out.i [2022-11-25 17:15:42,588 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 17:15:42,589 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-25 17:15:42,682 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 17:15:42,690 INFO L357 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=PETRI_NET, 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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@6b465935, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 17:15:42,690 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-25 17:15:42,702 INFO L276 IsEmpty]: Start isEmpty. Operand has 1830 states, 1264 states have (on average 1.307753164556962) internal successors, (1653), 1298 states have internal predecessors, (1653), 452 states have call successors, (452), 112 states have call predecessors, (452), 112 states have return successors, (452), 438 states have call predecessors, (452), 452 states have call successors, (452) [2022-11-25 17:15:42,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-25 17:15:42,712 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:15:42,713 INFO L195 NwaCegarLoop]: 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] [2022-11-25 17:15:42,713 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 17:15:42,719 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:15:42,719 INFO L85 PathProgramCache]: Analyzing trace with hash 2025966826, now seen corresponding path program 1 times [2022-11-25 17:15:42,730 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:15:42,730 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [300909784] [2022-11-25 17:15:42,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:15:42,731 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:15:43,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:15:43,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 17:15:43,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:15:43,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-25 17:15:43,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:15:43,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-11-25 17:15:43,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:15:43,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-11-25 17:15:43,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:15:43,713 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:15:43,714 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:15:43,714 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [300909784] [2022-11-25 17:15:43,715 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [300909784] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:15:43,715 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:15:43,716 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-25 17:15:43,717 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [325836938] [2022-11-25 17:15:43,718 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:15:43,722 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 17:15:43,723 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:15:43,760 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 17:15:43,761 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-25 17:15:43,766 INFO L87 Difference]: Start difference. First operand has 1830 states, 1264 states have (on average 1.307753164556962) internal successors, (1653), 1298 states have internal predecessors, (1653), 452 states have call successors, (452), 112 states have call predecessors, (452), 112 states have return successors, (452), 438 states have call predecessors, (452), 452 states have call successors, (452) Second operand has 5 states, 5 states have (on average 4.4) internal successors, (22), 3 states have internal predecessors, (22), 3 states have call successors, (6), 5 states have call predecessors, (6), 2 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2022-11-25 17:16:02,284 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:16:02,285 INFO L93 Difference]: Finished difference Result 5877 states and 8676 transitions. [2022-11-25 17:16:02,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-25 17:16:02,288 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.4) internal successors, (22), 3 states have internal predecessors, (22), 3 states have call successors, (6), 5 states have call predecessors, (6), 2 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) Word has length 32 [2022-11-25 17:16:02,289 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:16:02,346 INFO L225 Difference]: With dead ends: 5877 [2022-11-25 17:16:02,347 INFO L226 Difference]: Without dead ends: 4050 [2022-11-25 17:16:02,369 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-11-25 17:16:02,374 INFO L413 NwaCegarLoop]: 1246 mSDtfsCounter, 5542 mSDsluCounter, 1620 mSDsCounter, 0 mSdLazyCounter, 6334 mSolverCounterSat, 3062 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5859 SdHoareTripleChecker+Valid, 2866 SdHoareTripleChecker+Invalid, 9396 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 3062 IncrementalHoareTripleChecker+Valid, 6334 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.5s IncrementalHoareTripleChecker+Time [2022-11-25 17:16:02,375 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5859 Valid, 2866 Invalid, 9396 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [3062 Valid, 6334 Invalid, 0 Unknown, 0 Unchecked, 17.5s Time] [2022-11-25 17:16:02,399 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4050 states. [2022-11-25 17:16:02,779 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4050 to 3519. [2022-11-25 17:16:02,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3519 states, 2439 states have (on average 1.2947929479294793) internal successors, (3158), 2496 states have internal predecessors, (3158), 839 states have call successors, (839), 220 states have call predecessors, (839), 240 states have return successors, (942), 821 states have call predecessors, (942), 823 states have call successors, (942) [2022-11-25 17:16:02,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3519 states to 3519 states and 4939 transitions. [2022-11-25 17:16:02,828 INFO L78 Accepts]: Start accepts. Automaton has 3519 states and 4939 transitions. Word has length 32 [2022-11-25 17:16:02,829 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:16:02,829 INFO L495 AbstractCegarLoop]: Abstraction has 3519 states and 4939 transitions. [2022-11-25 17:16:02,830 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.4) internal successors, (22), 3 states have internal predecessors, (22), 3 states have call successors, (6), 5 states have call predecessors, (6), 2 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2022-11-25 17:16:02,830 INFO L276 IsEmpty]: Start isEmpty. Operand 3519 states and 4939 transitions. [2022-11-25 17:16:02,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-25 17:16:02,833 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:16:02,833 INFO L195 NwaCegarLoop]: 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] [2022-11-25 17:16:02,833 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-25 17:16:02,837 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 17:16:02,838 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:16:02,838 INFO L85 PathProgramCache]: Analyzing trace with hash -1621419543, now seen corresponding path program 1 times [2022-11-25 17:16:02,839 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:16:02,839 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [251785462] [2022-11-25 17:16:02,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:16:02,839 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:16:02,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:16:03,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 17:16:03,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:16:03,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-25 17:16:03,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:16:03,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-11-25 17:16:03,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:16:03,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-11-25 17:16:03,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:16:03,261 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:16:03,261 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:16:03,262 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [251785462] [2022-11-25 17:16:03,262 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [251785462] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:16:03,262 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:16:03,262 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-25 17:16:03,263 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [80791653] [2022-11-25 17:16:03,263 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:16:03,264 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 17:16:03,265 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:16:03,266 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 17:16:03,266 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-25 17:16:03,266 INFO L87 Difference]: Start difference. First operand 3519 states and 4939 transitions. Second operand has 5 states, 5 states have (on average 4.6) internal successors, (23), 3 states have internal predecessors, (23), 3 states have call successors, (6), 5 states have call predecessors, (6), 2 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2022-11-25 17:16:13,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:16:13,515 INFO L93 Difference]: Finished difference Result 4118 states and 5910 transitions. [2022-11-25 17:16:13,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-25 17:16:13,523 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.6) internal successors, (23), 3 states have internal predecessors, (23), 3 states have call successors, (6), 5 states have call predecessors, (6), 2 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) Word has length 33 [2022-11-25 17:16:13,524 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:16:13,555 INFO L225 Difference]: With dead ends: 4118 [2022-11-25 17:16:13,555 INFO L226 Difference]: Without dead ends: 4115 [2022-11-25 17:16:13,559 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-11-25 17:16:13,561 INFO L413 NwaCegarLoop]: 928 mSDtfsCounter, 3989 mSDsluCounter, 893 mSDsCounter, 0 mSdLazyCounter, 3615 mSolverCounterSat, 2059 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4212 SdHoareTripleChecker+Valid, 1821 SdHoareTripleChecker+Invalid, 5674 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2059 IncrementalHoareTripleChecker+Valid, 3615 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.7s IncrementalHoareTripleChecker+Time [2022-11-25 17:16:13,562 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4212 Valid, 1821 Invalid, 5674 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2059 Valid, 3615 Invalid, 0 Unknown, 0 Unchecked, 9.7s Time] [2022-11-25 17:16:13,570 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4115 states. [2022-11-25 17:16:13,811 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4115 to 3518. [2022-11-25 17:16:13,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3518 states, 2439 states have (on average 1.2943829438294383) internal successors, (3157), 2495 states have internal predecessors, (3157), 838 states have call successors, (838), 220 states have call predecessors, (838), 240 states have return successors, (942), 821 states have call predecessors, (942), 823 states have call successors, (942) [2022-11-25 17:16:13,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3518 states to 3518 states and 4937 transitions. [2022-11-25 17:16:13,853 INFO L78 Accepts]: Start accepts. Automaton has 3518 states and 4937 transitions. Word has length 33 [2022-11-25 17:16:13,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:16:13,854 INFO L495 AbstractCegarLoop]: Abstraction has 3518 states and 4937 transitions. [2022-11-25 17:16:13,854 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.6) internal successors, (23), 3 states have internal predecessors, (23), 3 states have call successors, (6), 5 states have call predecessors, (6), 2 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2022-11-25 17:16:13,854 INFO L276 IsEmpty]: Start isEmpty. Operand 3518 states and 4937 transitions. [2022-11-25 17:16:13,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2022-11-25 17:16:13,856 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:16:13,856 INFO L195 NwaCegarLoop]: 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] [2022-11-25 17:16:13,856 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-25 17:16:13,857 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 17:16:13,857 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:16:13,857 INFO L85 PathProgramCache]: Analyzing trace with hash 1273724877, now seen corresponding path program 1 times [2022-11-25 17:16:13,857 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:16:13,863 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1232717586] [2022-11-25 17:16:13,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:16:13,864 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:16:13,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:16:14,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 17:16:14,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:16:14,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-25 17:16:14,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:16:14,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-11-25 17:16:14,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:16:14,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-11-25 17:16:14,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:16:14,308 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:16:14,309 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:16:14,309 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1232717586] [2022-11-25 17:16:14,309 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1232717586] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:16:14,309 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:16:14,309 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-25 17:16:14,310 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2134488502] [2022-11-25 17:16:14,310 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:16:14,311 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 17:16:14,311 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:16:14,312 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 17:16:14,312 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-25 17:16:14,313 INFO L87 Difference]: Start difference. First operand 3518 states and 4937 transitions. Second operand has 5 states, 5 states have (on average 4.8) internal successors, (24), 3 states have internal predecessors, (24), 3 states have call successors, (6), 5 states have call predecessors, (6), 2 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2022-11-25 17:16:23,116 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:16:23,116 INFO L93 Difference]: Finished difference Result 4117 states and 5908 transitions. [2022-11-25 17:16:23,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-25 17:16:23,117 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.8) internal successors, (24), 3 states have internal predecessors, (24), 3 states have call successors, (6), 5 states have call predecessors, (6), 2 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) Word has length 34 [2022-11-25 17:16:23,117 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:16:23,144 INFO L225 Difference]: With dead ends: 4117 [2022-11-25 17:16:23,145 INFO L226 Difference]: Without dead ends: 4114 [2022-11-25 17:16:23,148 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-11-25 17:16:23,149 INFO L413 NwaCegarLoop]: 928 mSDtfsCounter, 3988 mSDsluCounter, 894 mSDsCounter, 0 mSdLazyCounter, 3598 mSolverCounterSat, 2052 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4213 SdHoareTripleChecker+Valid, 1822 SdHoareTripleChecker+Invalid, 5650 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2052 IncrementalHoareTripleChecker+Valid, 3598 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.3s IncrementalHoareTripleChecker+Time [2022-11-25 17:16:23,150 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4213 Valid, 1822 Invalid, 5650 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2052 Valid, 3598 Invalid, 0 Unknown, 0 Unchecked, 8.3s Time] [2022-11-25 17:16:23,155 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4114 states. [2022-11-25 17:16:23,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4114 to 3517. [2022-11-25 17:16:23,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3517 states, 2439 states have (on average 1.2939729397293973) internal successors, (3156), 2494 states have internal predecessors, (3156), 837 states have call successors, (837), 220 states have call predecessors, (837), 240 states have return successors, (942), 821 states have call predecessors, (942), 823 states have call successors, (942) [2022-11-25 17:16:23,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3517 states to 3517 states and 4935 transitions. [2022-11-25 17:16:23,425 INFO L78 Accepts]: Start accepts. Automaton has 3517 states and 4935 transitions. Word has length 34 [2022-11-25 17:16:23,425 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:16:23,425 INFO L495 AbstractCegarLoop]: Abstraction has 3517 states and 4935 transitions. [2022-11-25 17:16:23,425 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.8) internal successors, (24), 3 states have internal predecessors, (24), 3 states have call successors, (6), 5 states have call predecessors, (6), 2 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2022-11-25 17:16:23,426 INFO L276 IsEmpty]: Start isEmpty. Operand 3517 states and 4935 transitions. [2022-11-25 17:16:23,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2022-11-25 17:16:23,427 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:16:23,427 INFO L195 NwaCegarLoop]: 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] [2022-11-25 17:16:23,427 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-25 17:16:23,427 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 17:16:23,428 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:16:23,428 INFO L85 PathProgramCache]: Analyzing trace with hash 828893548, now seen corresponding path program 1 times [2022-11-25 17:16:23,428 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:16:23,428 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1909322683] [2022-11-25 17:16:23,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:16:23,429 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:16:23,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:16:23,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 17:16:23,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:16:23,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-25 17:16:23,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:16:23,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-11-25 17:16:23,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:16:23,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-11-25 17:16:23,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:16:23,791 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:16:23,792 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:16:23,792 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1909322683] [2022-11-25 17:16:23,792 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1909322683] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:16:23,792 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:16:23,792 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-25 17:16:23,793 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2108258217] [2022-11-25 17:16:23,793 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:16:23,793 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 17:16:23,795 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:16:23,796 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 17:16:23,796 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-25 17:16:23,796 INFO L87 Difference]: Start difference. First operand 3517 states and 4935 transitions. Second operand has 5 states, 5 states have (on average 5.0) internal successors, (25), 3 states have internal predecessors, (25), 3 states have call successors, (6), 5 states have call predecessors, (6), 2 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2022-11-25 17:16:32,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:16:32,891 INFO L93 Difference]: Finished difference Result 4254 states and 6049 transitions. [2022-11-25 17:16:32,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-25 17:16:32,892 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.0) internal successors, (25), 3 states have internal predecessors, (25), 3 states have call successors, (6), 5 states have call predecessors, (6), 2 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) Word has length 35 [2022-11-25 17:16:32,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:16:32,918 INFO L225 Difference]: With dead ends: 4254 [2022-11-25 17:16:32,918 INFO L226 Difference]: Without dead ends: 4235 [2022-11-25 17:16:32,922 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-11-25 17:16:32,923 INFO L413 NwaCegarLoop]: 945 mSDtfsCounter, 3911 mSDsluCounter, 968 mSDsCounter, 0 mSdLazyCounter, 3829 mSolverCounterSat, 2010 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4119 SdHoareTripleChecker+Valid, 1913 SdHoareTripleChecker+Invalid, 5839 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2010 IncrementalHoareTripleChecker+Valid, 3829 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.6s IncrementalHoareTripleChecker+Time [2022-11-25 17:16:32,924 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4119 Valid, 1913 Invalid, 5839 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2010 Valid, 3829 Invalid, 0 Unknown, 0 Unchecked, 8.6s Time] [2022-11-25 17:16:32,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4235 states. [2022-11-25 17:16:33,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4235 to 3630. [2022-11-25 17:16:33,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3630 states, 2527 states have (on average 1.2880886426592797) internal successors, (3255), 2579 states have internal predecessors, (3255), 840 states have call successors, (840), 242 states have call predecessors, (840), 262 states have return successors, (948), 827 states have call predecessors, (948), 829 states have call successors, (948) [2022-11-25 17:16:33,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3630 states to 3630 states and 5043 transitions. [2022-11-25 17:16:33,301 INFO L78 Accepts]: Start accepts. Automaton has 3630 states and 5043 transitions. Word has length 35 [2022-11-25 17:16:33,303 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:16:33,304 INFO L495 AbstractCegarLoop]: Abstraction has 3630 states and 5043 transitions. [2022-11-25 17:16:33,305 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.0) internal successors, (25), 3 states have internal predecessors, (25), 3 states have call successors, (6), 5 states have call predecessors, (6), 2 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2022-11-25 17:16:33,305 INFO L276 IsEmpty]: Start isEmpty. Operand 3630 states and 5043 transitions. [2022-11-25 17:16:33,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2022-11-25 17:16:33,317 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:16:33,317 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:16:33,317 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-25 17:16:33,317 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 17:16:33,318 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:16:33,318 INFO L85 PathProgramCache]: Analyzing trace with hash -706205600, now seen corresponding path program 1 times [2022-11-25 17:16:33,318 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:16:33,318 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [899786417] [2022-11-25 17:16:33,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:16:33,319 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:16:33,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:16:33,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 17:16:33,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:16:33,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-25 17:16:33,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:16:33,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-11-25 17:16:33,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:16:33,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-11-25 17:16:33,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:16:33,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-11-25 17:16:33,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:16:33,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-11-25 17:16:33,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:16:33,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-11-25 17:16:33,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:16:33,750 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-25 17:16:33,750 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:16:33,750 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [899786417] [2022-11-25 17:16:33,750 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [899786417] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:16:33,750 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:16:33,751 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-25 17:16:33,751 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [493733492] [2022-11-25 17:16:33,751 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:16:33,751 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-25 17:16:33,752 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:16:33,752 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-25 17:16:33,753 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-11-25 17:16:33,753 INFO L87 Difference]: Start difference. First operand 3630 states and 5043 transitions. Second operand has 7 states, 7 states have (on average 5.714285714285714) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (10), 5 states have call predecessors, (10), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-11-25 17:16:46,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:16:46,562 INFO L93 Difference]: Finished difference Result 8404 states and 11993 transitions. [2022-11-25 17:16:46,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-25 17:16:46,563 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.714285714285714) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (10), 5 states have call predecessors, (10), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 58 [2022-11-25 17:16:46,563 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:16:46,593 INFO L225 Difference]: With dead ends: 8404 [2022-11-25 17:16:46,594 INFO L226 Difference]: Without dead ends: 4932 [2022-11-25 17:16:46,613 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2022-11-25 17:16:46,613 INFO L413 NwaCegarLoop]: 1121 mSDtfsCounter, 3336 mSDsluCounter, 3202 mSDsCounter, 0 mSdLazyCounter, 7194 mSolverCounterSat, 2308 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3561 SdHoareTripleChecker+Valid, 4323 SdHoareTripleChecker+Invalid, 9502 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2308 IncrementalHoareTripleChecker+Valid, 7194 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.1s IncrementalHoareTripleChecker+Time [2022-11-25 17:16:46,614 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3561 Valid, 4323 Invalid, 9502 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2308 Valid, 7194 Invalid, 0 Unknown, 0 Unchecked, 12.1s Time] [2022-11-25 17:16:46,620 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4932 states. [2022-11-25 17:16:46,960 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4932 to 4234. [2022-11-25 17:16:46,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4234 states, 2982 states have (on average 1.2977867203219315) internal successors, (3870), 3025 states have internal predecessors, (3870), 975 states have call successors, (975), 242 states have call predecessors, (975), 276 states have return successors, (1133), 985 states have call predecessors, (1133), 964 states have call successors, (1133) [2022-11-25 17:16:46,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4234 states to 4234 states and 5978 transitions. [2022-11-25 17:16:46,991 INFO L78 Accepts]: Start accepts. Automaton has 4234 states and 5978 transitions. Word has length 58 [2022-11-25 17:16:46,992 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:16:46,992 INFO L495 AbstractCegarLoop]: Abstraction has 4234 states and 5978 transitions. [2022-11-25 17:16:46,992 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.714285714285714) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (10), 5 states have call predecessors, (10), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-11-25 17:16:46,992 INFO L276 IsEmpty]: Start isEmpty. Operand 4234 states and 5978 transitions. [2022-11-25 17:16:46,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-11-25 17:16:46,996 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:16:46,997 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:16:46,997 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-25 17:16:46,997 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 17:16:46,998 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:16:46,998 INFO L85 PathProgramCache]: Analyzing trace with hash -2035486617, now seen corresponding path program 1 times [2022-11-25 17:16:46,998 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:16:46,998 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [231484834] [2022-11-25 17:16:46,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:16:46,999 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:16:47,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:16:47,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 17:16:47,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:16:47,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-25 17:16:47,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:16:47,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-11-25 17:16:47,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:16:47,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-11-25 17:16:47,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:16:47,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-11-25 17:16:47,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:16:47,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-11-25 17:16:47,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:16:47,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2022-11-25 17:16:47,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:16:47,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-11-25 17:16:47,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:16:47,477 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-25 17:16:47,477 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:16:47,477 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [231484834] [2022-11-25 17:16:47,477 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [231484834] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:16:47,477 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:16:47,478 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-25 17:16:47,478 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [691200550] [2022-11-25 17:16:47,478 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:16:47,479 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-25 17:16:47,480 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:16:47,480 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-25 17:16:47,480 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-25 17:16:47,481 INFO L87 Difference]: Start difference. First operand 4234 states and 5978 transitions. Second operand has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 3 states have internal predecessors, (47), 2 states have call successors, (11), 5 states have call predecessors, (11), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-11-25 17:16:53,940 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 17:16:59,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:16:59,428 INFO L93 Difference]: Finished difference Result 9149 states and 13124 transitions. [2022-11-25 17:16:59,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-25 17:16:59,429 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 3 states have internal predecessors, (47), 2 states have call successors, (11), 5 states have call predecessors, (11), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 67 [2022-11-25 17:16:59,429 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:16:59,461 INFO L225 Difference]: With dead ends: 9149 [2022-11-25 17:16:59,461 INFO L226 Difference]: Without dead ends: 4934 [2022-11-25 17:16:59,483 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2022-11-25 17:16:59,484 INFO L413 NwaCegarLoop]: 1126 mSDtfsCounter, 2291 mSDsluCounter, 2567 mSDsCounter, 0 mSdLazyCounter, 5889 mSolverCounterSat, 1476 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2517 SdHoareTripleChecker+Valid, 3693 SdHoareTripleChecker+Invalid, 7365 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1476 IncrementalHoareTripleChecker+Valid, 5889 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.3s IncrementalHoareTripleChecker+Time [2022-11-25 17:16:59,485 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2517 Valid, 3693 Invalid, 7365 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1476 Valid, 5889 Invalid, 0 Unknown, 0 Unchecked, 11.3s Time] [2022-11-25 17:16:59,491 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4934 states. [2022-11-25 17:16:59,887 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4934 to 4235. [2022-11-25 17:16:59,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4235 states, 2983 states have (on average 1.2976868923902112) internal successors, (3871), 3026 states have internal predecessors, (3871), 975 states have call successors, (975), 242 states have call predecessors, (975), 276 states have return successors, (1133), 985 states have call predecessors, (1133), 964 states have call successors, (1133) [2022-11-25 17:16:59,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4235 states to 4235 states and 5979 transitions. [2022-11-25 17:16:59,918 INFO L78 Accepts]: Start accepts. Automaton has 4235 states and 5979 transitions. Word has length 67 [2022-11-25 17:16:59,918 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:16:59,918 INFO L495 AbstractCegarLoop]: Abstraction has 4235 states and 5979 transitions. [2022-11-25 17:16:59,918 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 3 states have internal predecessors, (47), 2 states have call successors, (11), 5 states have call predecessors, (11), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-11-25 17:16:59,919 INFO L276 IsEmpty]: Start isEmpty. Operand 4235 states and 5979 transitions. [2022-11-25 17:16:59,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2022-11-25 17:16:59,922 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:16:59,922 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:16:59,922 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-25 17:16:59,923 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 17:16:59,923 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:16:59,923 INFO L85 PathProgramCache]: Analyzing trace with hash -1310542805, now seen corresponding path program 1 times [2022-11-25 17:16:59,924 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:16:59,924 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1585533832] [2022-11-25 17:16:59,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:16:59,924 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:17:00,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:17:00,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 17:17:00,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:17:00,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-25 17:17:00,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:17:00,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-11-25 17:17:00,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:17:00,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-11-25 17:17:00,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:17:00,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-25 17:17:00,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:17:00,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-11-25 17:17:00,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:17:00,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-11-25 17:17:00,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:17:00,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-11-25 17:17:00,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:17:00,419 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-25 17:17:00,419 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:17:00,419 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1585533832] [2022-11-25 17:17:00,420 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1585533832] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 17:17:00,420 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [827526356] [2022-11-25 17:17:00,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:17:00,420 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:17:00,420 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a49dd73-9ef1-4e9b-8e53-d859215e526f/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:17:00,433 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a49dd73-9ef1-4e9b-8e53-d859215e526f/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 17:17:00,464 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a49dd73-9ef1-4e9b-8e53-d859215e526f/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-25 17:17:01,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:17:01,514 INFO L263 TraceCheckSpWp]: Trace formula consists of 3061 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-25 17:17:01,522 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:17:01,574 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:17:01,575 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 17:17:01,644 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-25 17:17:01,645 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [827526356] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 17:17:01,645 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-25 17:17:01,645 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 4, 4] total 10 [2022-11-25 17:17:01,645 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [514681804] [2022-11-25 17:17:01,646 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-25 17:17:01,646 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-25 17:17:01,646 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:17:01,647 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-25 17:17:01,647 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-11-25 17:17:01,647 INFO L87 Difference]: Start difference. First operand 4235 states and 5979 transitions. Second operand has 10 states, 10 states have (on average 6.8) internal successors, (68), 7 states have internal predecessors, (68), 2 states have call successors, (18), 5 states have call predecessors, (18), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-11-25 17:17:14,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:17:14,483 INFO L93 Difference]: Finished difference Result 9154 states and 13131 transitions. [2022-11-25 17:17:14,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-25 17:17:14,484 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 6.8) internal successors, (68), 7 states have internal predecessors, (68), 2 states have call successors, (18), 5 states have call predecessors, (18), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 69 [2022-11-25 17:17:14,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:17:14,507 INFO L225 Difference]: With dead ends: 9154 [2022-11-25 17:17:14,507 INFO L226 Difference]: Without dead ends: 4939 [2022-11-25 17:17:14,525 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 159 GetRequests, 149 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2022-11-25 17:17:14,525 INFO L413 NwaCegarLoop]: 1126 mSDtfsCounter, 3335 mSDsluCounter, 3209 mSDsCounter, 0 mSdLazyCounter, 7218 mSolverCounterSat, 2318 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3560 SdHoareTripleChecker+Valid, 4335 SdHoareTripleChecker+Invalid, 9536 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2318 IncrementalHoareTripleChecker+Valid, 7218 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.1s IncrementalHoareTripleChecker+Time [2022-11-25 17:17:14,526 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3560 Valid, 4335 Invalid, 9536 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2318 Valid, 7218 Invalid, 0 Unknown, 0 Unchecked, 12.1s Time] [2022-11-25 17:17:14,532 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4939 states. [2022-11-25 17:17:14,829 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4939 to 4241. [2022-11-25 17:17:14,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4241 states, 2989 states have (on average 1.2970893275342925) internal successors, (3877), 3032 states have internal predecessors, (3877), 975 states have call successors, (975), 242 states have call predecessors, (975), 276 states have return successors, (1133), 985 states have call predecessors, (1133), 964 states have call successors, (1133) [2022-11-25 17:17:14,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4241 states to 4241 states and 5985 transitions. [2022-11-25 17:17:14,860 INFO L78 Accepts]: Start accepts. Automaton has 4241 states and 5985 transitions. Word has length 69 [2022-11-25 17:17:14,861 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:17:14,861 INFO L495 AbstractCegarLoop]: Abstraction has 4241 states and 5985 transitions. [2022-11-25 17:17:14,861 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 6.8) internal successors, (68), 7 states have internal predecessors, (68), 2 states have call successors, (18), 5 states have call predecessors, (18), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-11-25 17:17:14,861 INFO L276 IsEmpty]: Start isEmpty. Operand 4241 states and 5985 transitions. [2022-11-25 17:17:14,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-11-25 17:17:14,863 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:17:14,864 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:17:14,883 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a49dd73-9ef1-4e9b-8e53-d859215e526f/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-11-25 17:17:15,074 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a49dd73-9ef1-4e9b-8e53-d859215e526f/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:17:15,075 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 17:17:15,075 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:17:15,075 INFO L85 PathProgramCache]: Analyzing trace with hash 1157216631, now seen corresponding path program 2 times [2022-11-25 17:17:15,075 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:17:15,076 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1049719607] [2022-11-25 17:17:15,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:17:15,076 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:17:15,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:17:15,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 17:17:15,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:17:15,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-25 17:17:15,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:17:15,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-11-25 17:17:15,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:17:15,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-11-25 17:17:15,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:17:15,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-11-25 17:17:15,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:17:15,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-11-25 17:17:15,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:17:15,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-11-25 17:17:15,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:17:15,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-11-25 17:17:15,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:17:15,574 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-11-25 17:17:15,574 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:17:15,574 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1049719607] [2022-11-25 17:17:15,575 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1049719607] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:17:15,575 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:17:15,575 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-25 17:17:15,575 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [718912853] [2022-11-25 17:17:15,575 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:17:15,576 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-25 17:17:15,576 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:17:15,576 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-25 17:17:15,577 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-25 17:17:15,577 INFO L87 Difference]: Start difference. First operand 4241 states and 5985 transitions. Second operand has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 3 states have internal predecessors, (49), 3 states have call successors, (11), 6 states have call predecessors, (11), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-11-25 17:17:23,099 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 17:17:34,228 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:17:34,228 INFO L93 Difference]: Finished difference Result 9209 states and 13297 transitions. [2022-11-25 17:17:34,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-25 17:17:34,229 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 3 states have internal predecessors, (49), 3 states have call successors, (11), 6 states have call predecessors, (11), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 75 [2022-11-25 17:17:34,229 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:17:34,255 INFO L225 Difference]: With dead ends: 9209 [2022-11-25 17:17:34,256 INFO L226 Difference]: Without dead ends: 5135 [2022-11-25 17:17:34,279 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2022-11-25 17:17:34,280 INFO L413 NwaCegarLoop]: 1385 mSDtfsCounter, 6083 mSDsluCounter, 2662 mSDsCounter, 0 mSdLazyCounter, 8251 mSolverCounterSat, 4323 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6398 SdHoareTripleChecker+Valid, 4047 SdHoareTripleChecker+Invalid, 12574 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4323 IncrementalHoareTripleChecker+Valid, 8251 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.7s IncrementalHoareTripleChecker+Time [2022-11-25 17:17:34,280 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6398 Valid, 4047 Invalid, 12574 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4323 Valid, 8251 Invalid, 0 Unknown, 0 Unchecked, 17.7s Time] [2022-11-25 17:17:34,292 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5135 states. [2022-11-25 17:17:34,690 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5135 to 4162. [2022-11-25 17:17:34,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4162 states, 2929 states have (on average 1.300785250938887) internal successors, (3810), 2982 states have internal predecessors, (3810), 969 states have call successors, (969), 241 states have call predecessors, (969), 263 states have return successors, (1040), 957 states have call predecessors, (1040), 948 states have call successors, (1040) [2022-11-25 17:17:34,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4162 states to 4162 states and 5819 transitions. [2022-11-25 17:17:34,718 INFO L78 Accepts]: Start accepts. Automaton has 4162 states and 5819 transitions. Word has length 75 [2022-11-25 17:17:34,719 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:17:34,719 INFO L495 AbstractCegarLoop]: Abstraction has 4162 states and 5819 transitions. [2022-11-25 17:17:34,719 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 3 states have internal predecessors, (49), 3 states have call successors, (11), 6 states have call predecessors, (11), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-11-25 17:17:34,719 INFO L276 IsEmpty]: Start isEmpty. Operand 4162 states and 5819 transitions. [2022-11-25 17:17:34,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2022-11-25 17:17:34,722 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:17:34,722 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:17:34,723 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-25 17:17:34,723 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 17:17:34,723 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:17:34,723 INFO L85 PathProgramCache]: Analyzing trace with hash 1090370402, now seen corresponding path program 1 times [2022-11-25 17:17:34,724 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:17:34,724 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [486096387] [2022-11-25 17:17:34,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:17:34,724 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:17:34,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:17:35,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 17:17:35,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:17:35,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-25 17:17:35,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:17:35,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-11-25 17:17:35,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:17:35,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-11-25 17:17:35,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:17:35,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-11-25 17:17:35,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:17:35,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-11-25 17:17:35,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:17:35,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-11-25 17:17:35,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:17:35,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-11-25 17:17:35,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:17:35,293 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 2 proven. 16 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-25 17:17:35,294 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:17:35,294 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [486096387] [2022-11-25 17:17:35,294 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [486096387] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 17:17:35,294 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [56739234] [2022-11-25 17:17:35,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:17:35,295 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:17:35,295 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a49dd73-9ef1-4e9b-8e53-d859215e526f/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:17:35,299 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a49dd73-9ef1-4e9b-8e53-d859215e526f/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 17:17:35,323 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a49dd73-9ef1-4e9b-8e53-d859215e526f/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-25 17:17:36,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:17:36,377 INFO L263 TraceCheckSpWp]: Trace formula consists of 3155 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-25 17:17:36,382 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:17:36,441 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 2 proven. 16 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-25 17:17:36,441 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 17:17:36,575 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 2 proven. 16 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-25 17:17:36,575 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [56739234] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 17:17:36,575 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-25 17:17:36,575 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 7, 7] total 16 [2022-11-25 17:17:36,576 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [981537414] [2022-11-25 17:17:36,576 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-25 17:17:36,576 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-25 17:17:36,576 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:17:36,577 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-25 17:17:36,577 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=155, Unknown=0, NotChecked=0, Total=240 [2022-11-25 17:17:36,578 INFO L87 Difference]: Start difference. First operand 4162 states and 5819 transitions. Second operand has 16 states, 16 states have (on average 4.9375) internal successors, (79), 13 states have internal predecessors, (79), 2 states have call successors, (19), 5 states have call predecessors, (19), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-11-25 17:17:46,670 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.52s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 17:17:54,030 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:17:54,030 INFO L93 Difference]: Finished difference Result 9278 states and 13207 transitions. [2022-11-25 17:17:54,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-11-25 17:17:54,031 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 4.9375) internal successors, (79), 13 states have internal predecessors, (79), 2 states have call successors, (19), 5 states have call predecessors, (19), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 79 [2022-11-25 17:17:54,031 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:17:54,054 INFO L225 Difference]: With dead ends: 9278 [2022-11-25 17:17:54,055 INFO L226 Difference]: Without dead ends: 5142 [2022-11-25 17:17:54,069 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 182 GetRequests, 166 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=95, Invalid=211, Unknown=0, NotChecked=0, Total=306 [2022-11-25 17:17:54,069 INFO L413 NwaCegarLoop]: 1117 mSDtfsCounter, 3337 mSDsluCounter, 4992 mSDsCounter, 0 mSdLazyCounter, 10794 mSolverCounterSat, 2314 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3566 SdHoareTripleChecker+Valid, 6109 SdHoareTripleChecker+Invalid, 13108 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2314 IncrementalHoareTripleChecker+Valid, 10794 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.6s IncrementalHoareTripleChecker+Time [2022-11-25 17:17:54,070 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3566 Valid, 6109 Invalid, 13108 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2314 Valid, 10794 Invalid, 0 Unknown, 0 Unchecked, 16.6s Time] [2022-11-25 17:17:54,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5142 states. [2022-11-25 17:17:54,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5142 to 4174. [2022-11-25 17:17:54,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4174 states, 2941 states have (on average 1.2995579734784086) internal successors, (3822), 2994 states have internal predecessors, (3822), 969 states have call successors, (969), 241 states have call predecessors, (969), 263 states have return successors, (1040), 957 states have call predecessors, (1040), 948 states have call successors, (1040) [2022-11-25 17:17:54,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4174 states to 4174 states and 5831 transitions. [2022-11-25 17:17:54,433 INFO L78 Accepts]: Start accepts. Automaton has 4174 states and 5831 transitions. Word has length 79 [2022-11-25 17:17:54,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:17:54,434 INFO L495 AbstractCegarLoop]: Abstraction has 4174 states and 5831 transitions. [2022-11-25 17:17:54,434 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 4.9375) internal successors, (79), 13 states have internal predecessors, (79), 2 states have call successors, (19), 5 states have call predecessors, (19), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-11-25 17:17:54,435 INFO L276 IsEmpty]: Start isEmpty. Operand 4174 states and 5831 transitions. [2022-11-25 17:17:54,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-11-25 17:17:54,438 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:17:54,439 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:17:54,455 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a49dd73-9ef1-4e9b-8e53-d859215e526f/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-25 17:17:54,652 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a49dd73-9ef1-4e9b-8e53-d859215e526f/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2022-11-25 17:17:54,652 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 17:17:54,652 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:17:54,653 INFO L85 PathProgramCache]: Analyzing trace with hash -1752006918, now seen corresponding path program 2 times [2022-11-25 17:17:54,653 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:17:54,653 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019741892] [2022-11-25 17:17:54,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:17:54,653 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:17:54,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:17:55,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 17:17:55,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:17:55,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-25 17:17:55,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:17:55,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-11-25 17:17:55,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:17:55,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-11-25 17:17:55,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:17:55,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-25 17:17:55,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:17:55,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-11-25 17:17:55,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:17:55,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-11-25 17:17:55,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:17:55,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-11-25 17:17:55,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:17:55,612 INFO L134 CoverageAnalysis]: Checked inductivity of 107 backedges. 2 proven. 100 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-25 17:17:55,612 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:17:55,612 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019741892] [2022-11-25 17:17:55,612 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2019741892] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 17:17:55,612 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1222421632] [2022-11-25 17:17:55,613 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-25 17:17:55,613 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:17:55,613 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a49dd73-9ef1-4e9b-8e53-d859215e526f/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:17:55,614 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a49dd73-9ef1-4e9b-8e53-d859215e526f/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 17:17:55,638 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a49dd73-9ef1-4e9b-8e53-d859215e526f/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-25 17:17:57,493 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-25 17:17:57,493 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-25 17:17:57,504 INFO L263 TraceCheckSpWp]: Trace formula consists of 3245 conjuncts, 12 conjunts are in the unsatisfiable core [2022-11-25 17:17:57,508 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:17:57,610 INFO L134 CoverageAnalysis]: Checked inductivity of 107 backedges. 2 proven. 100 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-25 17:17:57,610 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 17:17:58,053 INFO L134 CoverageAnalysis]: Checked inductivity of 107 backedges. 2 proven. 100 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-25 17:17:58,053 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1222421632] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 17:17:58,053 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-25 17:17:58,053 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 13, 13] total 28 [2022-11-25 17:17:58,053 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2138217490] [2022-11-25 17:17:58,054 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-25 17:17:58,054 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-11-25 17:17:58,054 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:17:58,055 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-11-25 17:17:58,055 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=307, Invalid=449, Unknown=0, NotChecked=0, Total=756 [2022-11-25 17:17:58,055 INFO L87 Difference]: Start difference. First operand 4174 states and 5831 transitions. Second operand has 28 states, 28 states have (on average 3.6785714285714284) internal successors, (103), 25 states have internal predecessors, (103), 2 states have call successors, (19), 5 states have call predecessors, (19), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-11-25 17:18:13,735 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:18:13,735 INFO L93 Difference]: Finished difference Result 9302 states and 13237 transitions. [2022-11-25 17:18:13,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-11-25 17:18:13,736 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 3.6785714285714284) internal successors, (103), 25 states have internal predecessors, (103), 2 states have call successors, (19), 5 states have call predecessors, (19), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 91 [2022-11-25 17:18:13,737 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:18:13,759 INFO L225 Difference]: With dead ends: 9302 [2022-11-25 17:18:13,760 INFO L226 Difference]: Without dead ends: 5166 [2022-11-25 17:18:13,773 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 212 GetRequests, 184 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 105 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=317, Invalid=553, Unknown=0, NotChecked=0, Total=870 [2022-11-25 17:18:13,774 INFO L413 NwaCegarLoop]: 1125 mSDtfsCounter, 2292 mSDsluCounter, 4377 mSDsCounter, 0 mSdLazyCounter, 9544 mSolverCounterSat, 1479 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2517 SdHoareTripleChecker+Valid, 5502 SdHoareTripleChecker+Invalid, 11023 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1479 IncrementalHoareTripleChecker+Valid, 9544 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.7s IncrementalHoareTripleChecker+Time [2022-11-25 17:18:13,775 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2517 Valid, 5502 Invalid, 11023 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1479 Valid, 9544 Invalid, 0 Unknown, 0 Unchecked, 14.7s Time] [2022-11-25 17:18:13,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5166 states. [2022-11-25 17:18:14,122 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5166 to 4198. [2022-11-25 17:18:14,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4198 states, 2965 states have (on average 1.2971332209106239) internal successors, (3846), 3018 states have internal predecessors, (3846), 969 states have call successors, (969), 241 states have call predecessors, (969), 263 states have return successors, (1040), 957 states have call predecessors, (1040), 948 states have call successors, (1040) [2022-11-25 17:18:14,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4198 states to 4198 states and 5855 transitions. [2022-11-25 17:18:14,152 INFO L78 Accepts]: Start accepts. Automaton has 4198 states and 5855 transitions. Word has length 91 [2022-11-25 17:18:14,153 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:18:14,154 INFO L495 AbstractCegarLoop]: Abstraction has 4198 states and 5855 transitions. [2022-11-25 17:18:14,154 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 3.6785714285714284) internal successors, (103), 25 states have internal predecessors, (103), 2 states have call successors, (19), 5 states have call predecessors, (19), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-11-25 17:18:14,154 INFO L276 IsEmpty]: Start isEmpty. Operand 4198 states and 5855 transitions. [2022-11-25 17:18:14,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2022-11-25 17:18:14,157 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:18:14,158 INFO L195 NwaCegarLoop]: trace histogram [22, 22, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:18:14,175 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a49dd73-9ef1-4e9b-8e53-d859215e526f/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-25 17:18:14,370 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a49dd73-9ef1-4e9b-8e53-d859215e526f/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:18:14,371 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 17:18:14,371 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:18:14,371 INFO L85 PathProgramCache]: Analyzing trace with hash 1037048362, now seen corresponding path program 3 times [2022-11-25 17:18:14,371 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:18:14,372 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1965522279] [2022-11-25 17:18:14,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:18:14,372 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:18:14,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:18:16,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 17:18:16,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:18:16,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-25 17:18:16,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:18:16,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-11-25 17:18:16,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:18:16,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-11-25 17:18:16,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:18:16,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-11-25 17:18:16,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:18:16,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-11-25 17:18:16,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:18:16,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-11-25 17:18:16,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:18:16,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-11-25 17:18:16,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:18:16,348 INFO L134 CoverageAnalysis]: Checked inductivity of 491 backedges. 2 proven. 484 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-25 17:18:16,348 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:18:16,348 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1965522279] [2022-11-25 17:18:16,349 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1965522279] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 17:18:16,349 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [5012514] [2022-11-25 17:18:16,349 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-25 17:18:16,349 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:18:16,349 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a49dd73-9ef1-4e9b-8e53-d859215e526f/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:18:16,351 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a49dd73-9ef1-4e9b-8e53-d859215e526f/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 17:18:16,379 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a49dd73-9ef1-4e9b-8e53-d859215e526f/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-25 17:18:18,156 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-11-25 17:18:18,157 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-25 17:18:18,168 INFO L263 TraceCheckSpWp]: Trace formula consists of 3095 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-25 17:18:18,171 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:18:18,323 INFO L134 CoverageAnalysis]: Checked inductivity of 491 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 489 trivial. 0 not checked. [2022-11-25 17:18:18,323 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 17:18:18,323 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [5012514] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:18:18,323 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-25 17:18:18,324 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [28] total 31 [2022-11-25 17:18:18,324 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2051365811] [2022-11-25 17:18:18,324 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:18:18,324 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 17:18:18,325 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:18:18,325 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 17:18:18,325 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=313, Invalid=617, Unknown=0, NotChecked=0, Total=930 [2022-11-25 17:18:18,326 INFO L87 Difference]: Start difference. First operand 4198 states and 5855 transitions. Second operand has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 3 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2022-11-25 17:18:20,355 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 17:18:20,830 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:18:20,831 INFO L93 Difference]: Finished difference Result 8195 states and 11450 transitions. [2022-11-25 17:18:20,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-25 17:18:20,832 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 3 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 115 [2022-11-25 17:18:20,833 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:18:20,859 INFO L225 Difference]: With dead ends: 8195 [2022-11-25 17:18:20,860 INFO L226 Difference]: Without dead ends: 4182 [2022-11-25 17:18:20,875 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 157 GetRequests, 126 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 135 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=323, Invalid=733, Unknown=0, NotChecked=0, Total=1056 [2022-11-25 17:18:20,876 INFO L413 NwaCegarLoop]: 2525 mSDtfsCounter, 4 mSDsluCounter, 7553 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 10078 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-11-25 17:18:20,877 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 10078 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 17 Invalid, 1 Unknown, 0 Unchecked, 2.0s Time] [2022-11-25 17:18:20,882 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4182 states. [2022-11-25 17:18:21,238 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4182 to 4182. [2022-11-25 17:18:21,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4182 states, 2956 states have (on average 1.2966847090663058) internal successors, (3833), 3007 states have internal predecessors, (3833), 965 states have call successors, (965), 238 states have call predecessors, (965), 260 states have return successors, (1036), 953 states have call predecessors, (1036), 944 states have call successors, (1036) [2022-11-25 17:18:21,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4182 states to 4182 states and 5834 transitions. [2022-11-25 17:18:21,269 INFO L78 Accepts]: Start accepts. Automaton has 4182 states and 5834 transitions. Word has length 115 [2022-11-25 17:18:21,269 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:18:21,269 INFO L495 AbstractCegarLoop]: Abstraction has 4182 states and 5834 transitions. [2022-11-25 17:18:21,269 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 3 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2022-11-25 17:18:21,270 INFO L276 IsEmpty]: Start isEmpty. Operand 4182 states and 5834 transitions. [2022-11-25 17:18:21,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2022-11-25 17:18:21,273 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:18:21,273 INFO L195 NwaCegarLoop]: trace histogram [22, 22, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:18:21,291 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a49dd73-9ef1-4e9b-8e53-d859215e526f/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-11-25 17:18:21,486 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a49dd73-9ef1-4e9b-8e53-d859215e526f/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:18:21,487 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 17:18:21,487 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:18:21,487 INFO L85 PathProgramCache]: Analyzing trace with hash -820632570, now seen corresponding path program 1 times [2022-11-25 17:18:21,487 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:18:21,487 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1984329326] [2022-11-25 17:18:21,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:18:21,488 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:18:21,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:18:23,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 17:18:23,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:18:23,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-25 17:18:23,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:18:23,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-11-25 17:18:23,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:18:23,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-11-25 17:18:23,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:18:23,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-11-25 17:18:23,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:18:23,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-11-25 17:18:23,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:18:23,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:18:23,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:18:23,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:18:23,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:18:24,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-11-25 17:18:24,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:18:24,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2022-11-25 17:18:24,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:18:24,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2022-11-25 17:18:24,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:18:24,057 INFO L134 CoverageAnalysis]: Checked inductivity of 495 backedges. 2 proven. 484 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-25 17:18:24,058 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:18:24,058 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1984329326] [2022-11-25 17:18:24,058 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1984329326] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 17:18:24,058 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [5207673] [2022-11-25 17:18:24,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:18:24,059 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:18:24,059 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a49dd73-9ef1-4e9b-8e53-d859215e526f/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:18:24,063 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a49dd73-9ef1-4e9b-8e53-d859215e526f/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 17:18:24,087 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a49dd73-9ef1-4e9b-8e53-d859215e526f/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-25 17:18:25,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:18:25,465 INFO L263 TraceCheckSpWp]: Trace formula consists of 4291 conjuncts, 24 conjunts are in the unsatisfiable core [2022-11-25 17:18:25,469 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:18:25,617 INFO L134 CoverageAnalysis]: Checked inductivity of 495 backedges. 6 proven. 484 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-25 17:18:25,617 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 17:18:27,035 INFO L134 CoverageAnalysis]: Checked inductivity of 495 backedges. 2 proven. 484 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-25 17:18:27,035 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [5207673] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 17:18:27,035 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-25 17:18:27,036 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [28, 25, 25] total 52 [2022-11-25 17:18:27,036 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1346593050] [2022-11-25 17:18:27,036 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-25 17:18:27,037 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 52 states [2022-11-25 17:18:27,037 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:18:27,038 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 52 interpolants. [2022-11-25 17:18:27,039 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1183, Invalid=1469, Unknown=0, NotChecked=0, Total=2652 [2022-11-25 17:18:27,040 INFO L87 Difference]: Start difference. First operand 4182 states and 5834 transitions. Second operand has 52 states, 52 states have (on average 3.423076923076923) internal successors, (178), 49 states have internal predecessors, (178), 2 states have call successors, (28), 5 states have call predecessors, (28), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-11-25 17:18:36,280 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 17:18:43,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:18:43,756 INFO L93 Difference]: Finished difference Result 9318 states and 13255 transitions. [2022-11-25 17:18:43,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2022-11-25 17:18:43,757 INFO L78 Accepts]: Start accepts. Automaton has has 52 states, 52 states have (on average 3.423076923076923) internal successors, (178), 49 states have internal predecessors, (178), 2 states have call successors, (28), 5 states have call predecessors, (28), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 139 [2022-11-25 17:18:43,757 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:18:43,782 INFO L225 Difference]: With dead ends: 9318 [2022-11-25 17:18:43,782 INFO L226 Difference]: Without dead ends: 5198 [2022-11-25 17:18:43,797 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 326 GetRequests, 274 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 225 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=1193, Invalid=1669, Unknown=0, NotChecked=0, Total=2862 [2022-11-25 17:18:43,797 INFO L413 NwaCegarLoop]: 1103 mSDtfsCounter, 2292 mSDsluCounter, 3431 mSDsCounter, 0 mSdLazyCounter, 7719 mSolverCounterSat, 1467 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2520 SdHoareTripleChecker+Valid, 4534 SdHoareTripleChecker+Invalid, 9187 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1467 IncrementalHoareTripleChecker+Valid, 7719 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.7s IncrementalHoareTripleChecker+Time [2022-11-25 17:18:43,798 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2520 Valid, 4534 Invalid, 9187 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1467 Valid, 7719 Invalid, 1 Unknown, 0 Unchecked, 15.7s Time] [2022-11-25 17:18:43,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5198 states. [2022-11-25 17:18:44,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5198 to 4230. [2022-11-25 17:18:44,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4230 states, 3004 states have (on average 1.2919440745672437) internal successors, (3881), 3055 states have internal predecessors, (3881), 965 states have call successors, (965), 238 states have call predecessors, (965), 260 states have return successors, (1036), 953 states have call predecessors, (1036), 944 states have call successors, (1036) [2022-11-25 17:18:44,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4230 states to 4230 states and 5882 transitions. [2022-11-25 17:18:44,333 INFO L78 Accepts]: Start accepts. Automaton has 4230 states and 5882 transitions. Word has length 139 [2022-11-25 17:18:44,333 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:18:44,333 INFO L495 AbstractCegarLoop]: Abstraction has 4230 states and 5882 transitions. [2022-11-25 17:18:44,334 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 52 states, 52 states have (on average 3.423076923076923) internal successors, (178), 49 states have internal predecessors, (178), 2 states have call successors, (28), 5 states have call predecessors, (28), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-11-25 17:18:44,334 INFO L276 IsEmpty]: Start isEmpty. Operand 4230 states and 5882 transitions. [2022-11-25 17:18:44,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2022-11-25 17:18:44,339 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:18:44,339 INFO L195 NwaCegarLoop]: trace histogram [46, 46, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:18:44,354 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a49dd73-9ef1-4e9b-8e53-d859215e526f/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-25 17:18:44,553 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a49dd73-9ef1-4e9b-8e53-d859215e526f/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2022-11-25 17:18:44,554 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 17:18:44,554 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:18:44,554 INFO L85 PathProgramCache]: Analyzing trace with hash -1716221338, now seen corresponding path program 2 times [2022-11-25 17:18:44,554 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:18:44,555 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [733432599] [2022-11-25 17:18:44,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:18:44,555 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:18:44,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:18:49,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 17:18:49,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:18:49,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-25 17:18:49,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:18:49,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-11-25 17:18:49,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:18:49,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-11-25 17:18:49,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:18:49,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-11-25 17:18:49,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:18:49,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-11-25 17:18:49,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:18:49,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:18:49,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:18:49,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:18:49,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:18:49,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-11-25 17:18:49,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:18:50,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2022-11-25 17:18:50,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:18:50,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2022-11-25 17:18:50,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:18:50,073 INFO L134 CoverageAnalysis]: Checked inductivity of 2127 backedges. 2 proven. 2116 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-25 17:18:50,073 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:18:50,073 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [733432599] [2022-11-25 17:18:50,073 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [733432599] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 17:18:50,073 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2045086269] [2022-11-25 17:18:50,074 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-25 17:18:50,074 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:18:50,074 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a49dd73-9ef1-4e9b-8e53-d859215e526f/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:18:50,075 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a49dd73-9ef1-4e9b-8e53-d859215e526f/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 17:18:50,103 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a49dd73-9ef1-4e9b-8e53-d859215e526f/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-25 17:18:51,562 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-25 17:18:51,562 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-25 17:18:51,580 INFO L263 TraceCheckSpWp]: Trace formula consists of 4651 conjuncts, 48 conjunts are in the unsatisfiable core [2022-11-25 17:18:51,585 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:18:51,859 INFO L134 CoverageAnalysis]: Checked inductivity of 2127 backedges. 6 proven. 2116 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-25 17:18:51,859 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 17:18:56,418 INFO L134 CoverageAnalysis]: Checked inductivity of 2127 backedges. 2 proven. 2116 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-25 17:18:56,419 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2045086269] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 17:18:56,419 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-25 17:18:56,419 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [52, 49, 49] total 100 [2022-11-25 17:18:56,419 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1860725216] [2022-11-25 17:18:56,420 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-25 17:18:56,422 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 100 states [2022-11-25 17:18:56,423 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:18:56,425 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 100 interpolants. [2022-11-25 17:18:56,429 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=4663, Invalid=5237, Unknown=0, NotChecked=0, Total=9900 [2022-11-25 17:18:56,430 INFO L87 Difference]: Start difference. First operand 4230 states and 5882 transitions. Second operand has 100 states, 100 states have (on average 2.74) internal successors, (274), 97 states have internal predecessors, (274), 2 states have call successors, (28), 5 states have call predecessors, (28), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-11-25 17:19:14,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:19:14,909 INFO L93 Difference]: Finished difference Result 9414 states and 13375 transitions. [2022-11-25 17:19:14,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 101 states. [2022-11-25 17:19:14,909 INFO L78 Accepts]: Start accepts. Automaton has has 100 states, 100 states have (on average 2.74) internal successors, (274), 97 states have internal predecessors, (274), 2 states have call successors, (28), 5 states have call predecessors, (28), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 187 [2022-11-25 17:19:14,910 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:19:14,934 INFO L225 Difference]: With dead ends: 9414 [2022-11-25 17:19:14,934 INFO L226 Difference]: Without dead ends: 5294 [2022-11-25 17:19:14,952 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 446 GetRequests, 346 SyntacticMatches, 0 SemanticMatches, 100 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 465 ImplicationChecksByTransitivity, 6.2s TimeCoverageRelationStatistics Valid=4673, Invalid=5629, Unknown=0, NotChecked=0, Total=10302 [2022-11-25 17:19:14,953 INFO L413 NwaCegarLoop]: 1106 mSDtfsCounter, 3337 mSDsluCounter, 4978 mSDsCounter, 0 mSdLazyCounter, 10935 mSolverCounterSat, 2304 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3561 SdHoareTripleChecker+Valid, 6084 SdHoareTripleChecker+Invalid, 13239 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2304 IncrementalHoareTripleChecker+Valid, 10935 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.1s IncrementalHoareTripleChecker+Time [2022-11-25 17:19:14,954 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3561 Valid, 6084 Invalid, 13239 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2304 Valid, 10935 Invalid, 0 Unknown, 0 Unchecked, 17.1s Time] [2022-11-25 17:19:14,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5294 states. [2022-11-25 17:19:15,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5294 to 4326. [2022-11-25 17:19:15,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4326 states, 3100 states have (on average 1.2829032258064517) internal successors, (3977), 3151 states have internal predecessors, (3977), 965 states have call successors, (965), 238 states have call predecessors, (965), 260 states have return successors, (1036), 953 states have call predecessors, (1036), 944 states have call successors, (1036) [2022-11-25 17:19:15,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4326 states to 4326 states and 5978 transitions. [2022-11-25 17:19:15,434 INFO L78 Accepts]: Start accepts. Automaton has 4326 states and 5978 transitions. Word has length 187 [2022-11-25 17:19:15,435 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:19:15,435 INFO L495 AbstractCegarLoop]: Abstraction has 4326 states and 5978 transitions. [2022-11-25 17:19:15,435 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 100 states, 100 states have (on average 2.74) internal successors, (274), 97 states have internal predecessors, (274), 2 states have call successors, (28), 5 states have call predecessors, (28), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-11-25 17:19:15,435 INFO L276 IsEmpty]: Start isEmpty. Operand 4326 states and 5978 transitions. [2022-11-25 17:19:15,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 284 [2022-11-25 17:19:15,443 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:19:15,443 INFO L195 NwaCegarLoop]: trace histogram [94, 94, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:19:15,464 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a49dd73-9ef1-4e9b-8e53-d859215e526f/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-11-25 17:19:15,659 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a49dd73-9ef1-4e9b-8e53-d859215e526f/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2022-11-25 17:19:15,659 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 17:19:15,660 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:19:15,660 INFO L85 PathProgramCache]: Analyzing trace with hash -581789914, now seen corresponding path program 3 times [2022-11-25 17:19:15,660 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:19:15,660 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [986116159] [2022-11-25 17:19:15,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:19:15,660 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:19:16,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:19:28,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 17:19:28,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:19:28,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-25 17:19:28,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:19:28,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-11-25 17:19:28,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:19:28,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-11-25 17:19:28,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:19:28,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2022-11-25 17:19:28,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:19:28,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2022-11-25 17:19:28,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:19:28,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:19:28,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:19:28,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:19:28,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:19:28,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2022-11-25 17:19:28,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:19:28,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 261 [2022-11-25 17:19:28,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:19:28,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 267 [2022-11-25 17:19:28,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:19:28,435 INFO L134 CoverageAnalysis]: Checked inductivity of 8847 backedges. 2 proven. 8836 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-25 17:19:28,435 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:19:28,435 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [986116159] [2022-11-25 17:19:28,435 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [986116159] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 17:19:28,436 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1806926151] [2022-11-25 17:19:28,436 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-25 17:19:28,436 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:19:28,436 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a49dd73-9ef1-4e9b-8e53-d859215e526f/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:19:28,437 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a49dd73-9ef1-4e9b-8e53-d859215e526f/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 17:19:28,452 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a49dd73-9ef1-4e9b-8e53-d859215e526f/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-11-25 17:19:29,846 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-11-25 17:19:29,846 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-25 17:19:29,857 INFO L263 TraceCheckSpWp]: Trace formula consists of 3062 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-25 17:19:29,864 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:19:30,147 INFO L134 CoverageAnalysis]: Checked inductivity of 8847 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 8845 trivial. 0 not checked. [2022-11-25 17:19:30,147 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 17:19:30,147 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1806926151] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:19:30,147 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-25 17:19:30,148 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [100] total 103 [2022-11-25 17:19:30,148 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1600733276] [2022-11-25 17:19:30,148 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:19:30,148 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 17:19:30,148 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:19:30,149 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 17:19:30,152 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=4669, Invalid=5837, Unknown=0, NotChecked=0, Total=10506 [2022-11-25 17:19:30,152 INFO L87 Difference]: Start difference. First operand 4326 states and 5978 transitions. Second operand has 5 states, 5 states have (on average 12.8) internal successors, (64), 5 states have internal predecessors, (64), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-25 17:19:32,179 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 17:19:32,681 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:19:32,681 INFO L93 Difference]: Finished difference Result 8326 states and 11576 transitions. [2022-11-25 17:19:32,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-25 17:19:32,682 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 5 states have internal predecessors, (64), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 283 [2022-11-25 17:19:32,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:19:32,700 INFO L225 Difference]: With dead ends: 8326 [2022-11-25 17:19:32,700 INFO L226 Difference]: Without dead ends: 4326 [2022-11-25 17:19:32,718 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 403 GetRequests, 300 SyntacticMatches, 0 SemanticMatches, 103 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 567 ImplicationChecksByTransitivity, 6.2s TimeCoverageRelationStatistics Valid=4679, Invalid=6241, Unknown=0, NotChecked=0, Total=10920 [2022-11-25 17:19:32,719 INFO L413 NwaCegarLoop]: 2510 mSDtfsCounter, 3 mSDsluCounter, 7517 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 10027 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-11-25 17:19:32,720 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 10027 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 1 Unknown, 0 Unchecked, 2.0s Time] [2022-11-25 17:19:32,725 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4326 states. [2022-11-25 17:19:33,213 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4326 to 4326. [2022-11-25 17:19:33,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4326 states, 3100 states have (on average 1.2825806451612902) internal successors, (3976), 3151 states have internal predecessors, (3976), 965 states have call successors, (965), 238 states have call predecessors, (965), 260 states have return successors, (1036), 953 states have call predecessors, (1036), 944 states have call successors, (1036) [2022-11-25 17:19:33,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4326 states to 4326 states and 5977 transitions. [2022-11-25 17:19:33,240 INFO L78 Accepts]: Start accepts. Automaton has 4326 states and 5977 transitions. Word has length 283 [2022-11-25 17:19:33,241 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:19:33,241 INFO L495 AbstractCegarLoop]: Abstraction has 4326 states and 5977 transitions. [2022-11-25 17:19:33,242 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 5 states have internal predecessors, (64), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-25 17:19:33,242 INFO L276 IsEmpty]: Start isEmpty. Operand 4326 states and 5977 transitions. [2022-11-25 17:19:33,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 292 [2022-11-25 17:19:33,248 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:19:33,248 INFO L195 NwaCegarLoop]: trace histogram [94, 94, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:19:33,261 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a49dd73-9ef1-4e9b-8e53-d859215e526f/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-11-25 17:19:33,460 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a49dd73-9ef1-4e9b-8e53-d859215e526f/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:19:33,461 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 17:19:33,461 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:19:33,461 INFO L85 PathProgramCache]: Analyzing trace with hash 545721788, now seen corresponding path program 1 times [2022-11-25 17:19:33,461 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:19:33,461 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [853042009] [2022-11-25 17:19:33,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:19:33,461 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:19:33,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:19:45,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 17:19:45,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:19:45,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-25 17:19:45,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:19:45,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-11-25 17:19:45,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:19:45,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-11-25 17:19:45,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:19:45,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2022-11-25 17:19:45,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:19:45,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2022-11-25 17:19:45,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:19:45,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:19:45,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:19:45,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:19:45,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:19:45,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 246 [2022-11-25 17:19:45,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:19:45,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2022-11-25 17:19:45,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:19:45,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 269 [2022-11-25 17:19:45,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:19:45,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 275 [2022-11-25 17:19:45,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:19:45,553 INFO L134 CoverageAnalysis]: Checked inductivity of 8850 backedges. 2 proven. 8836 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-11-25 17:19:45,553 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:19:45,553 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [853042009] [2022-11-25 17:19:45,554 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [853042009] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 17:19:45,554 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [845434080] [2022-11-25 17:19:45,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:19:45,554 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:19:45,554 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a49dd73-9ef1-4e9b-8e53-d859215e526f/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:19:45,555 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a49dd73-9ef1-4e9b-8e53-d859215e526f/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 17:19:45,558 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a49dd73-9ef1-4e9b-8e53-d859215e526f/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-11-25 17:19:47,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:19:47,433 INFO L263 TraceCheckSpWp]: Trace formula consists of 5482 conjuncts, 96 conjunts are in the unsatisfiable core [2022-11-25 17:19:47,442 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:19:47,972 INFO L134 CoverageAnalysis]: Checked inductivity of 8850 backedges. 6 proven. 8836 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-25 17:19:47,972 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 17:20:05,590 INFO L134 CoverageAnalysis]: Checked inductivity of 8850 backedges. 2 proven. 8836 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-11-25 17:20:05,590 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [845434080] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 17:20:05,590 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-25 17:20:05,590 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [100, 97, 97] total 196 [2022-11-25 17:20:05,591 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [271581750] [2022-11-25 17:20:05,591 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-25 17:20:05,592 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 196 states [2022-11-25 17:20:05,592 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:20:05,599 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 196 interpolants. [2022-11-25 17:20:05,606 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18535, Invalid=19685, Unknown=0, NotChecked=0, Total=38220 [2022-11-25 17:20:05,606 INFO L87 Difference]: Start difference. First operand 4326 states and 5977 transitions. Second operand has 196 states, 196 states have (on average 2.3979591836734695) internal successors, (470), 193 states have internal predecessors, (470), 2 states have call successors, (30), 5 states have call predecessors, (30), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2022-11-25 17:20:30,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:20:30,256 INFO L93 Difference]: Finished difference Result 9606 states and 13613 transitions. [2022-11-25 17:20:30,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 197 states. [2022-11-25 17:20:30,257 INFO L78 Accepts]: Start accepts. Automaton has has 196 states, 196 states have (on average 2.3979591836734695) internal successors, (470), 193 states have internal predecessors, (470), 2 states have call successors, (30), 5 states have call predecessors, (30), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 291 [2022-11-25 17:20:30,258 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:20:30,276 INFO L225 Difference]: With dead ends: 9606 [2022-11-25 17:20:30,276 INFO L226 Difference]: Without dead ends: 5486 [2022-11-25 17:20:30,296 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 704 GetRequests, 508 SyntacticMatches, 0 SemanticMatches, 196 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 945 ImplicationChecksByTransitivity, 23.3s TimeCoverageRelationStatistics Valid=18545, Invalid=20461, Unknown=0, NotChecked=0, Total=39006 [2022-11-25 17:20:30,297 INFO L413 NwaCegarLoop]: 1102 mSDtfsCounter, 3334 mSDsluCounter, 6731 mSDsCounter, 0 mSdLazyCounter, 14749 mSolverCounterSat, 2292 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 20.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3558 SdHoareTripleChecker+Valid, 7833 SdHoareTripleChecker+Invalid, 17041 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 2292 IncrementalHoareTripleChecker+Valid, 14749 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 22.3s IncrementalHoareTripleChecker+Time [2022-11-25 17:20:30,297 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3558 Valid, 7833 Invalid, 17041 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [2292 Valid, 14749 Invalid, 0 Unknown, 0 Unchecked, 22.3s Time] [2022-11-25 17:20:30,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5486 states. [2022-11-25 17:20:30,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5486 to 4518. [2022-11-25 17:20:30,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4518 states, 3292 states have (on average 1.2660996354799514) internal successors, (4168), 3343 states have internal predecessors, (4168), 965 states have call successors, (965), 238 states have call predecessors, (965), 260 states have return successors, (1036), 953 states have call predecessors, (1036), 944 states have call successors, (1036) [2022-11-25 17:20:30,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4518 states to 4518 states and 6169 transitions. [2022-11-25 17:20:30,721 INFO L78 Accepts]: Start accepts. Automaton has 4518 states and 6169 transitions. Word has length 291 [2022-11-25 17:20:30,721 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:20:30,721 INFO L495 AbstractCegarLoop]: Abstraction has 4518 states and 6169 transitions. [2022-11-25 17:20:30,722 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 196 states, 196 states have (on average 2.3979591836734695) internal successors, (470), 193 states have internal predecessors, (470), 2 states have call successors, (30), 5 states have call predecessors, (30), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2022-11-25 17:20:30,722 INFO L276 IsEmpty]: Start isEmpty. Operand 4518 states and 6169 transitions. [2022-11-25 17:20:30,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 484 [2022-11-25 17:20:30,734 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:20:30,734 INFO L195 NwaCegarLoop]: trace histogram [190, 190, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:20:30,753 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a49dd73-9ef1-4e9b-8e53-d859215e526f/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-11-25 17:20:30,947 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a49dd73-9ef1-4e9b-8e53-d859215e526f/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:20:30,948 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 17:20:30,948 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:20:30,948 INFO L85 PathProgramCache]: Analyzing trace with hash 995534652, now seen corresponding path program 2 times [2022-11-25 17:20:30,949 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:20:30,949 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1354430312] [2022-11-25 17:20:30,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:20:30,949 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:20:31,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:21:13,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 17:21:13,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:21:13,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-25 17:21:13,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:21:13,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-11-25 17:21:13,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:21:13,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-11-25 17:21:13,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:21:13,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 412 [2022-11-25 17:21:13,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:21:13,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 418 [2022-11-25 17:21:13,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:21:13,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:21:13,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:21:13,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:21:13,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:21:13,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 438 [2022-11-25 17:21:13,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:21:13,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 455 [2022-11-25 17:21:13,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:21:13,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 461 [2022-11-25 17:21:13,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:21:13,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 467 [2022-11-25 17:21:13,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:21:13,597 INFO L134 CoverageAnalysis]: Checked inductivity of 36114 backedges. 2 proven. 36100 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-11-25 17:21:13,597 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:21:13,597 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1354430312] [2022-11-25 17:21:13,597 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1354430312] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 17:21:13,597 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1961634549] [2022-11-25 17:21:13,597 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-25 17:21:13,598 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:21:13,598 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a49dd73-9ef1-4e9b-8e53-d859215e526f/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:21:13,599 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a49dd73-9ef1-4e9b-8e53-d859215e526f/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 17:21:13,602 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a49dd73-9ef1-4e9b-8e53-d859215e526f/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-11-25 17:21:16,570 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-25 17:21:16,570 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-25 17:21:16,605 INFO L263 TraceCheckSpWp]: Trace formula consists of 6922 conjuncts, 192 conjunts are in the unsatisfiable core [2022-11-25 17:21:16,619 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:21:17,626 INFO L134 CoverageAnalysis]: Checked inductivity of 36114 backedges. 6 proven. 36100 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-25 17:21:17,627 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 17:21:57,298 INFO L134 CoverageAnalysis]: Checked inductivity of 36114 backedges. 2 proven. 36100 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-11-25 17:21:57,298 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1961634549] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 17:21:57,298 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-25 17:21:57,299 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [196, 193, 193] total 260 [2022-11-25 17:21:57,299 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1988916222] [2022-11-25 17:21:57,299 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-25 17:21:57,301 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 260 states [2022-11-25 17:21:57,301 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:21:57,310 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 260 interpolants. [2022-11-25 17:21:57,316 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32903, Invalid=34437, Unknown=0, NotChecked=0, Total=67340 [2022-11-25 17:21:57,317 INFO L87 Difference]: Start difference. First operand 4518 states and 6169 transitions. Second operand has 260 states, 260 states have (on average 2.3076923076923075) internal successors, (600), 257 states have internal predecessors, (600), 2 states have call successors, (30), 5 states have call predecessors, (30), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2022-11-25 17:22:15,604 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.41s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 17:22:27,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:22:27,943 INFO L93 Difference]: Finished difference Result 9734 states and 13709 transitions. [2022-11-25 17:22:27,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 261 states. [2022-11-25 17:22:27,944 INFO L78 Accepts]: Start accepts. Automaton has has 260 states, 260 states have (on average 2.3076923076923075) internal successors, (600), 257 states have internal predecessors, (600), 2 states have call successors, (30), 5 states have call predecessors, (30), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 483 [2022-11-25 17:22:27,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:22:27,963 INFO L225 Difference]: With dead ends: 9734 [2022-11-25 17:22:27,963 INFO L226 Difference]: Without dead ends: 5614 [2022-11-25 17:22:27,978 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1184 GetRequests, 796 SyntacticMatches, 128 SemanticMatches, 260 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17713 ImplicationChecksByTransitivity, 62.5s TimeCoverageRelationStatistics Valid=32913, Invalid=35469, Unknown=0, NotChecked=0, Total=68382 [2022-11-25 17:22:27,979 INFO L413 NwaCegarLoop]: 1094 mSDtfsCounter, 2291 mSDsluCounter, 7828 mSDsCounter, 0 mSdLazyCounter, 17085 mSolverCounterSat, 1469 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 24.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2515 SdHoareTripleChecker+Valid, 8922 SdHoareTripleChecker+Invalid, 18554 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 1469 IncrementalHoareTripleChecker+Valid, 17085 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 27.3s IncrementalHoareTripleChecker+Time [2022-11-25 17:22:27,979 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2515 Valid, 8922 Invalid, 18554 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [1469 Valid, 17085 Invalid, 0 Unknown, 0 Unchecked, 27.3s Time] [2022-11-25 17:22:27,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5614 states. [2022-11-25 17:22:28,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5614 to 4646. [2022-11-25 17:22:28,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4646 states, 3420 states have (on average 1.256140350877193) internal successors, (4296), 3471 states have internal predecessors, (4296), 965 states have call successors, (965), 238 states have call predecessors, (965), 260 states have return successors, (1036), 953 states have call predecessors, (1036), 944 states have call successors, (1036) [2022-11-25 17:22:28,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4646 states to 4646 states and 6297 transitions. [2022-11-25 17:22:28,656 INFO L78 Accepts]: Start accepts. Automaton has 4646 states and 6297 transitions. Word has length 483 [2022-11-25 17:22:28,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:22:28,656 INFO L495 AbstractCegarLoop]: Abstraction has 4646 states and 6297 transitions. [2022-11-25 17:22:28,657 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 260 states, 260 states have (on average 2.3076923076923075) internal successors, (600), 257 states have internal predecessors, (600), 2 states have call successors, (30), 5 states have call predecessors, (30), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2022-11-25 17:22:28,657 INFO L276 IsEmpty]: Start isEmpty. Operand 4646 states and 6297 transitions. [2022-11-25 17:22:28,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 612 [2022-11-25 17:22:28,671 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:22:28,672 INFO L195 NwaCegarLoop]: trace histogram [254, 254, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:22:28,699 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a49dd73-9ef1-4e9b-8e53-d859215e526f/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-11-25 17:22:28,887 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a49dd73-9ef1-4e9b-8e53-d859215e526f/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2022-11-25 17:22:28,887 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 17:22:28,887 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:22:28,887 INFO L85 PathProgramCache]: Analyzing trace with hash 1207416892, now seen corresponding path program 3 times [2022-11-25 17:22:28,888 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:22:28,888 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [805585028] [2022-11-25 17:22:28,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:22:28,888 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:22:29,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:22:32,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 17:22:32,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:22:32,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-25 17:22:32,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:22:32,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-11-25 17:22:32,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:22:32,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-11-25 17:22:32,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:22:32,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 540 [2022-11-25 17:22:32,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:22:32,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 546 [2022-11-25 17:22:32,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:22:32,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:22:33,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:22:33,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:22:33,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:22:33,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 566 [2022-11-25 17:22:33,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:22:33,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 583 [2022-11-25 17:22:33,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:22:33,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 589 [2022-11-25 17:22:33,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:22:33,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 595 [2022-11-25 17:22:33,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:22:33,050 INFO L134 CoverageAnalysis]: Checked inductivity of 64530 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 64528 trivial. 0 not checked. [2022-11-25 17:22:33,050 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:22:33,050 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [805585028] [2022-11-25 17:22:33,050 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [805585028] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:22:33,050 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:22:33,051 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-25 17:22:33,051 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1326067979] [2022-11-25 17:22:33,051 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:22:33,052 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-25 17:22:33,052 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:22:33,052 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-25 17:22:33,053 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-11-25 17:22:33,053 INFO L87 Difference]: Start difference. First operand 4646 states and 6297 transitions. Second operand has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 4 states have internal predecessors, (68), 2 states have call successors, (17), 5 states have call predecessors, (17), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-11-25 17:22:35,379 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 17:22:50,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:22:50,378 INFO L93 Difference]: Finished difference Result 10259 states and 14168 transitions. [2022-11-25 17:22:50,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-25 17:22:50,379 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 4 states have internal predecessors, (68), 2 states have call successors, (17), 5 states have call predecessors, (17), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 611 [2022-11-25 17:22:50,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:22:50,402 INFO L225 Difference]: With dead ends: 10259 [2022-11-25 17:22:50,402 INFO L226 Difference]: Without dead ends: 5628 [2022-11-25 17:22:50,415 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=45, Invalid=111, Unknown=0, NotChecked=0, Total=156 [2022-11-25 17:22:50,416 INFO L413 NwaCegarLoop]: 1085 mSDtfsCounter, 2332 mSDsluCounter, 3362 mSDsCounter, 0 mSdLazyCounter, 7555 mSolverCounterSat, 1462 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2565 SdHoareTripleChecker+Valid, 4447 SdHoareTripleChecker+Invalid, 9018 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1462 IncrementalHoareTripleChecker+Valid, 7555 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.3s IncrementalHoareTripleChecker+Time [2022-11-25 17:22:50,416 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2565 Valid, 4447 Invalid, 9018 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1462 Valid, 7555 Invalid, 1 Unknown, 0 Unchecked, 16.3s Time] [2022-11-25 17:22:50,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5628 states. [2022-11-25 17:22:50,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5628 to 4658. [2022-11-25 17:22:50,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4658 states, 3429 states have (on average 1.2554680664916886) internal successors, (4305), 3480 states have internal predecessors, (4305), 965 states have call successors, (965), 241 states have call predecessors, (965), 263 states have return successors, (1036), 953 states have call predecessors, (1036), 944 states have call successors, (1036) [2022-11-25 17:22:50,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4658 states to 4658 states and 6306 transitions. [2022-11-25 17:22:50,839 INFO L78 Accepts]: Start accepts. Automaton has 4658 states and 6306 transitions. Word has length 611 [2022-11-25 17:22:50,839 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:22:50,840 INFO L495 AbstractCegarLoop]: Abstraction has 4658 states and 6306 transitions. [2022-11-25 17:22:50,840 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 4 states have internal predecessors, (68), 2 states have call successors, (17), 5 states have call predecessors, (17), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-11-25 17:22:50,840 INFO L276 IsEmpty]: Start isEmpty. Operand 4658 states and 6306 transitions. [2022-11-25 17:22:50,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 612 [2022-11-25 17:22:50,847 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:22:50,848 INFO L195 NwaCegarLoop]: trace histogram [254, 254, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:22:50,848 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-11-25 17:22:50,848 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 17:22:50,849 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:22:50,849 INFO L85 PathProgramCache]: Analyzing trace with hash -528575750, now seen corresponding path program 1 times [2022-11-25 17:22:50,849 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:22:50,849 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [801331440] [2022-11-25 17:22:50,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:22:50,850 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:22:51,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:22:54,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 17:22:54,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:22:54,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-25 17:22:54,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:22:54,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-11-25 17:22:54,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:22:54,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-11-25 17:22:54,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:22:54,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 540 [2022-11-25 17:22:54,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:22:54,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 546 [2022-11-25 17:22:54,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:22:54,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:22:54,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:22:54,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:22:54,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:22:54,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 566 [2022-11-25 17:22:54,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:22:54,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 583 [2022-11-25 17:22:54,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:22:55,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 589 [2022-11-25 17:22:55,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:22:55,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 595 [2022-11-25 17:22:55,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:22:55,024 INFO L134 CoverageAnalysis]: Checked inductivity of 64530 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 64526 trivial. 0 not checked. [2022-11-25 17:22:55,025 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:22:55,025 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [801331440] [2022-11-25 17:22:55,025 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [801331440] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 17:22:55,025 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [475557369] [2022-11-25 17:22:55,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:22:55,026 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:22:55,026 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a49dd73-9ef1-4e9b-8e53-d859215e526f/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:22:55,027 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a49dd73-9ef1-4e9b-8e53-d859215e526f/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 17:22:55,065 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a49dd73-9ef1-4e9b-8e53-d859215e526f/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-11-25 17:22:57,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:22:57,887 INFO L263 TraceCheckSpWp]: Trace formula consists of 7883 conjuncts, 21 conjunts are in the unsatisfiable core [2022-11-25 17:22:57,899 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:22:58,077 INFO L134 CoverageAnalysis]: Checked inductivity of 64530 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 64528 trivial. 0 not checked. [2022-11-25 17:22:58,078 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 17:22:58,078 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [475557369] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:22:58,078 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-25 17:22:58,079 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [11] total 16 [2022-11-25 17:22:58,079 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1090739271] [2022-11-25 17:22:58,079 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:22:58,080 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-25 17:22:58,080 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:22:58,080 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-25 17:22:58,081 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=210, Unknown=0, NotChecked=0, Total=240 [2022-11-25 17:22:58,081 INFO L87 Difference]: Start difference. First operand 4658 states and 6306 transitions. Second operand has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 7 states have internal predecessors, (68), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-11-25 17:23:00,152 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 17:23:00,568 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:23:00,568 INFO L93 Difference]: Finished difference Result 8658 states and 11904 transitions. [2022-11-25 17:23:00,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-25 17:23:00,569 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 7 states have internal predecessors, (68), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 611 [2022-11-25 17:23:00,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:23:00,582 INFO L225 Difference]: With dead ends: 8658 [2022-11-25 17:23:00,582 INFO L226 Difference]: Without dead ends: 4658 [2022-11-25 17:23:00,592 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 647 GetRequests, 629 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=58, Invalid=322, Unknown=0, NotChecked=0, Total=380 [2022-11-25 17:23:00,593 INFO L413 NwaCegarLoop]: 2506 mSDtfsCounter, 10 mSDsluCounter, 12521 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 15027 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-11-25 17:23:00,593 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 15027 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 31 Invalid, 1 Unknown, 0 Unchecked, 2.1s Time] [2022-11-25 17:23:00,599 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4658 states. [2022-11-25 17:23:00,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4658 to 4658. [2022-11-25 17:23:00,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4658 states, 3429 states have (on average 1.2551764362787985) internal successors, (4304), 3480 states have internal predecessors, (4304), 965 states have call successors, (965), 241 states have call predecessors, (965), 263 states have return successors, (1036), 953 states have call predecessors, (1036), 944 states have call successors, (1036) [2022-11-25 17:23:00,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4658 states to 4658 states and 6305 transitions. [2022-11-25 17:23:00,861 INFO L78 Accepts]: Start accepts. Automaton has 4658 states and 6305 transitions. Word has length 611 [2022-11-25 17:23:00,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:23:00,862 INFO L495 AbstractCegarLoop]: Abstraction has 4658 states and 6305 transitions. [2022-11-25 17:23:00,862 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 7 states have internal predecessors, (68), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-11-25 17:23:00,862 INFO L276 IsEmpty]: Start isEmpty. Operand 4658 states and 6305 transitions. [2022-11-25 17:23:00,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 615 [2022-11-25 17:23:00,869 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:23:00,870 INFO L195 NwaCegarLoop]: trace histogram [254, 254, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:23:00,898 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a49dd73-9ef1-4e9b-8e53-d859215e526f/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-11-25 17:23:01,095 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a49dd73-9ef1-4e9b-8e53-d859215e526f/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:23:01,095 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 17:23:01,095 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:23:01,095 INFO L85 PathProgramCache]: Analyzing trace with hash -58400934, now seen corresponding path program 1 times [2022-11-25 17:23:01,096 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:23:01,096 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1727392393] [2022-11-25 17:23:01,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:23:01,096 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:23:01,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:23:05,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 17:23:05,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:23:05,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-25 17:23:05,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:23:05,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-11-25 17:23:05,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:23:05,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-11-25 17:23:05,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:23:05,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 540 [2022-11-25 17:23:05,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:23:05,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 546 [2022-11-25 17:23:05,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:23:05,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:23:05,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:23:05,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:23:05,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:23:05,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 566 [2022-11-25 17:23:05,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:23:05,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 586 [2022-11-25 17:23:05,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:23:05,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 592 [2022-11-25 17:23:05,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:23:05,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 598 [2022-11-25 17:23:05,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:23:05,400 INFO L134 CoverageAnalysis]: Checked inductivity of 64530 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 64526 trivial. 0 not checked. [2022-11-25 17:23:05,401 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:23:05,401 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1727392393] [2022-11-25 17:23:05,401 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1727392393] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 17:23:05,401 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [19454602] [2022-11-25 17:23:05,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:23:05,402 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:23:05,402 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a49dd73-9ef1-4e9b-8e53-d859215e526f/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:23:05,406 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a49dd73-9ef1-4e9b-8e53-d859215e526f/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 17:23:05,415 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a49dd73-9ef1-4e9b-8e53-d859215e526f/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-11-25 17:23:21,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:23:21,305 INFO L263 TraceCheckSpWp]: Trace formula consists of 7920 conjuncts, 37 conjunts are in the unsatisfiable core [2022-11-25 17:23:21,340 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:23:21,470 INFO L134 CoverageAnalysis]: Checked inductivity of 64530 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 64524 trivial. 0 not checked. [2022-11-25 17:23:21,471 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 17:23:21,471 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [19454602] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:23:21,471 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-25 17:23:21,471 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [11] total 11 [2022-11-25 17:23:21,471 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1765643413] [2022-11-25 17:23:21,471 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:23:21,472 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-25 17:23:21,472 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:23:21,473 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-25 17:23:21,473 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2022-11-25 17:23:21,473 INFO L87 Difference]: Start difference. First operand 4658 states and 6305 transitions. Second operand has 8 states, 8 states have (on average 9.25) internal successors, (74), 7 states have internal predecessors, (74), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (12), 4 states have call predecessors, (12), 3 states have call successors, (12) [2022-11-25 17:23:23,748 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 17:23:24,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:23:24,072 INFO L93 Difference]: Finished difference Result 9305 states and 12613 transitions. [2022-11-25 17:23:24,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-25 17:23:24,072 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.25) internal successors, (74), 7 states have internal predecessors, (74), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (12), 4 states have call predecessors, (12), 3 states have call successors, (12) Word has length 614 [2022-11-25 17:23:24,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:23:24,091 INFO L225 Difference]: With dead ends: 9305 [2022-11-25 17:23:24,091 INFO L226 Difference]: Without dead ends: 4666 [2022-11-25 17:23:24,106 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 651 GetRequests, 635 SyntacticMatches, 2 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=46, Invalid=194, Unknown=0, NotChecked=0, Total=240 [2022-11-25 17:23:24,106 INFO L413 NwaCegarLoop]: 2505 mSDtfsCounter, 42 mSDsluCounter, 14998 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 17503 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-11-25 17:23:24,107 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 17503 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 44 Invalid, 1 Unknown, 0 Unchecked, 2.1s Time] [2022-11-25 17:23:24,112 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4666 states. [2022-11-25 17:23:24,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4666 to 4658. [2022-11-25 17:23:24,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4658 states, 3429 states have (on average 1.2548848060659084) internal successors, (4303), 3480 states have internal predecessors, (4303), 965 states have call successors, (965), 241 states have call predecessors, (965), 263 states have return successors, (1036), 953 states have call predecessors, (1036), 944 states have call successors, (1036) [2022-11-25 17:23:24,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4658 states to 4658 states and 6304 transitions. [2022-11-25 17:23:24,485 INFO L78 Accepts]: Start accepts. Automaton has 4658 states and 6304 transitions. Word has length 614 [2022-11-25 17:23:24,485 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:23:24,485 INFO L495 AbstractCegarLoop]: Abstraction has 4658 states and 6304 transitions. [2022-11-25 17:23:24,485 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.25) internal successors, (74), 7 states have internal predecessors, (74), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (12), 4 states have call predecessors, (12), 3 states have call successors, (12) [2022-11-25 17:23:24,485 INFO L276 IsEmpty]: Start isEmpty. Operand 4658 states and 6304 transitions. [2022-11-25 17:23:24,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 618 [2022-11-25 17:23:24,492 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:23:24,492 INFO L195 NwaCegarLoop]: trace histogram [254, 254, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:23:24,518 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a49dd73-9ef1-4e9b-8e53-d859215e526f/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-11-25 17:23:24,693 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a49dd73-9ef1-4e9b-8e53-d859215e526f/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:23:24,693 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 17:23:24,693 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:23:24,693 INFO L85 PathProgramCache]: Analyzing trace with hash -1857518203, now seen corresponding path program 1 times [2022-11-25 17:23:24,694 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:23:24,694 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [552285848] [2022-11-25 17:23:24,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:23:24,694 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:23:25,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:23:28,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 17:23:28,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:23:28,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-25 17:23:28,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:23:28,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-11-25 17:23:28,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:23:28,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-25 17:23:28,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:23:28,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 543 [2022-11-25 17:23:28,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:23:28,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 549 [2022-11-25 17:23:28,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:23:28,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:23:28,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:23:28,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:23:28,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:23:28,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 569 [2022-11-25 17:23:28,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:23:28,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 589 [2022-11-25 17:23:28,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:23:28,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 595 [2022-11-25 17:23:28,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:23:28,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 601 [2022-11-25 17:23:28,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:23:28,981 INFO L134 CoverageAnalysis]: Checked inductivity of 64530 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 64526 trivial. 0 not checked. [2022-11-25 17:23:28,981 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:23:28,981 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [552285848] [2022-11-25 17:23:28,981 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [552285848] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:23:28,981 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:23:28,981 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-25 17:23:28,981 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [234346917] [2022-11-25 17:23:28,982 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:23:28,982 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-25 17:23:28,983 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:23:28,983 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-25 17:23:28,983 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=132, Unknown=0, NotChecked=0, Total=156 [2022-11-25 17:23:28,984 INFO L87 Difference]: Start difference. First operand 4658 states and 6304 transitions. Second operand has 13 states, 13 states have (on average 5.846153846153846) internal successors, (76), 7 states have internal predecessors, (76), 2 states have call successors, (17), 5 states have call predecessors, (17), 4 states have return successors, (12), 5 states have call predecessors, (12), 2 states have call successors, (12) [2022-11-25 17:23:48,278 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 17:23:59,545 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.70s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 17:24:03,173 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:24:03,174 INFO L93 Difference]: Finished difference Result 9737 states and 13639 transitions. [2022-11-25 17:24:03,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-25 17:24:03,174 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 5.846153846153846) internal successors, (76), 7 states have internal predecessors, (76), 2 states have call successors, (17), 5 states have call predecessors, (17), 4 states have return successors, (12), 5 states have call predecessors, (12), 2 states have call successors, (12) Word has length 617 [2022-11-25 17:24:03,176 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:24:03,196 INFO L225 Difference]: With dead ends: 9737 [2022-11-25 17:24:03,196 INFO L226 Difference]: Without dead ends: 5626 [2022-11-25 17:24:03,207 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=84, Invalid=336, Unknown=0, NotChecked=0, Total=420 [2022-11-25 17:24:03,208 INFO L413 NwaCegarLoop]: 1096 mSDtfsCounter, 2290 mSDsluCounter, 8764 mSDsCounter, 0 mSdLazyCounter, 18340 mSolverCounterSat, 1467 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 30.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2519 SdHoareTripleChecker+Valid, 9860 SdHoareTripleChecker+Invalid, 19808 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 1467 IncrementalHoareTripleChecker+Valid, 18340 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 32.8s IncrementalHoareTripleChecker+Time [2022-11-25 17:24:03,208 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2519 Valid, 9860 Invalid, 19808 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [1467 Valid, 18340 Invalid, 1 Unknown, 0 Unchecked, 32.8s Time] [2022-11-25 17:24:03,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5626 states. [2022-11-25 17:24:03,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5626 to 4667. [2022-11-25 17:24:03,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4667 states, 3435 states have (on average 1.254439592430859) internal successors, (4309), 3487 states have internal predecessors, (4309), 965 states have call successors, (965), 241 states have call predecessors, (965), 266 states have return successors, (1057), 955 states have call predecessors, (1057), 944 states have call successors, (1057) [2022-11-25 17:24:03,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4667 states to 4667 states and 6331 transitions. [2022-11-25 17:24:03,568 INFO L78 Accepts]: Start accepts. Automaton has 4667 states and 6331 transitions. Word has length 617 [2022-11-25 17:24:03,569 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:24:03,569 INFO L495 AbstractCegarLoop]: Abstraction has 4667 states and 6331 transitions. [2022-11-25 17:24:03,569 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 5.846153846153846) internal successors, (76), 7 states have internal predecessors, (76), 2 states have call successors, (17), 5 states have call predecessors, (17), 4 states have return successors, (12), 5 states have call predecessors, (12), 2 states have call successors, (12) [2022-11-25 17:24:03,569 INFO L276 IsEmpty]: Start isEmpty. Operand 4667 states and 6331 transitions. [2022-11-25 17:24:03,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 621 [2022-11-25 17:24:03,574 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:24:03,575 INFO L195 NwaCegarLoop]: trace histogram [254, 254, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:24:03,575 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-11-25 17:24:03,575 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 17:24:03,575 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:24:03,575 INFO L85 PathProgramCache]: Analyzing trace with hash -207705596, now seen corresponding path program 1 times [2022-11-25 17:24:03,575 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:24:03,576 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1974505059] [2022-11-25 17:24:03,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:24:03,576 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:24:46,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:26:35,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 17:26:35,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:26:35,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-25 17:26:35,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:26:35,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-11-25 17:26:35,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:26:35,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-25 17:26:35,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:26:35,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 543 [2022-11-25 17:26:35,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:26:35,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 549 [2022-11-25 17:26:35,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:26:35,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:26:35,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:26:36,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:26:36,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:26:36,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 572 [2022-11-25 17:26:36,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:26:36,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 592 [2022-11-25 17:26:36,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:26:36,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 598 [2022-11-25 17:26:36,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:26:36,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 604 [2022-11-25 17:26:36,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:26:36,752 INFO L134 CoverageAnalysis]: Checked inductivity of 64533 backedges. 2 proven. 259 refuted. 0 times theorem prover too weak. 64272 trivial. 0 not checked. [2022-11-25 17:26:36,753 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:26:36,753 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1974505059] [2022-11-25 17:26:36,753 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1974505059] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 17:26:36,753 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [597129356] [2022-11-25 17:26:36,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:26:36,754 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:26:36,754 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a49dd73-9ef1-4e9b-8e53-d859215e526f/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:26:36,758 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a49dd73-9ef1-4e9b-8e53-d859215e526f/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 17:26:36,775 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a49dd73-9ef1-4e9b-8e53-d859215e526f/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process