./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--usb--serial--usbserial.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2329fc70 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_3c8d8920-80db-4c92-bf8e-04ce55ddabb3/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c8d8920-80db-4c92-bf8e-04ce55ddabb3/bin/utaipan-gh47qXpMRh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c8d8920-80db-4c92-bf8e-04ce55ddabb3/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c8d8920-80db-4c92-bf8e-04ce55ddabb3/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--usb--serial--usbserial.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c8d8920-80db-4c92-bf8e-04ce55ddabb3/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c8d8920-80db-4c92-bf8e-04ce55ddabb3/bin/utaipan-gh47qXpMRh --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 267df3d840ee451a69f2c9c23fc4c286b307e31eb8c416518f7dce9b4c82858a --- 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-2329fc7 [2022-12-14 07:08:33,808 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 07:08:33,809 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 07:08:33,822 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 07:08:33,822 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 07:08:33,823 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 07:08:33,824 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 07:08:33,825 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 07:08:33,826 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 07:08:33,827 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 07:08:33,827 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 07:08:33,828 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 07:08:33,828 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 07:08:33,829 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 07:08:33,830 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 07:08:33,831 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 07:08:33,831 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 07:08:33,832 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 07:08:33,833 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 07:08:33,834 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 07:08:33,835 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 07:08:33,836 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 07:08:33,836 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 07:08:33,837 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 07:08:33,839 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 07:08:33,839 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 07:08:33,839 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 07:08:33,840 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 07:08:33,840 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 07:08:33,841 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 07:08:33,841 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 07:08:33,842 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 07:08:33,842 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 07:08:33,843 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 07:08:33,843 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 07:08:33,844 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 07:08:33,844 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 07:08:33,844 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 07:08:33,845 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 07:08:33,845 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 07:08:33,846 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 07:08:33,848 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c8d8920-80db-4c92-bf8e-04ce55ddabb3/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-12-14 07:08:33,870 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 07:08:33,870 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 07:08:33,870 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 07:08:33,870 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 07:08:33,877 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 07:08:33,877 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 07:08:33,878 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 07:08:33,878 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 07:08:33,878 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 07:08:33,878 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 07:08:33,878 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 07:08:33,879 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 07:08:33,879 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 07:08:33,879 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 07:08:33,879 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 07:08:33,879 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 07:08:33,880 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 07:08:33,880 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 07:08:33,880 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 07:08:33,881 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 07:08:33,881 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 07:08:33,881 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 07:08:33,881 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 07:08:33,881 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 07:08:33,882 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 07:08:33,882 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 07:08:33,882 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 07:08:33,882 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 07:08:33,882 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 07:08:33,883 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 07:08:33,883 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 07:08:33,883 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 07:08:33,883 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 07:08:33,883 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 07:08:33,883 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 07:08:33,884 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 07:08:33,884 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 07:08:33,884 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 07:08:33,884 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_3c8d8920-80db-4c92-bf8e-04ce55ddabb3/bin/utaipan-gh47qXpMRh/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c8d8920-80db-4c92-bf8e-04ce55ddabb3/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 267df3d840ee451a69f2c9c23fc4c286b307e31eb8c416518f7dce9b4c82858a [2022-12-14 07:08:34,071 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 07:08:34,087 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 07:08:34,089 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 07:08:34,089 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 07:08:34,090 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 07:08:34,090 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c8d8920-80db-4c92-bf8e-04ce55ddabb3/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--usb--serial--usbserial.ko-entry_point.cil.out.i [2022-12-14 07:08:36,569 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 07:08:36,998 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 07:08:36,999 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c8d8920-80db-4c92-bf8e-04ce55ddabb3/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--usb--serial--usbserial.ko-entry_point.cil.out.i [2022-12-14 07:08:37,033 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c8d8920-80db-4c92-bf8e-04ce55ddabb3/bin/utaipan-gh47qXpMRh/data/73e1d3ed2/232edd44ae3948089ffa47ab69fb24b0/FLAG18de54492 [2022-12-14 07:08:37,146 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c8d8920-80db-4c92-bf8e-04ce55ddabb3/bin/utaipan-gh47qXpMRh/data/73e1d3ed2/232edd44ae3948089ffa47ab69fb24b0 [2022-12-14 07:08:37,149 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 07:08:37,150 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 07:08:37,151 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 07:08:37,152 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 07:08:37,155 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 07:08:37,156 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 07:08:37" (1/1) ... [2022-12-14 07:08:37,157 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@556c37c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:08:37, skipping insertion in model container [2022-12-14 07:08:37,157 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 07:08:37" (1/1) ... [2022-12-14 07:08:37,164 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 07:08:37,274 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 07:08:37,693 WARN L623 FunctionHandler]: Unknown extern function __list_add [2022-12-14 07:08:37,747 WARN L623 FunctionHandler]: Unknown extern function __xadd_wrong_size [2022-12-14 07:08:37,782 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock [2022-12-14 07:08:37,789 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_unlock [2022-12-14 07:08:37,898 WARN L623 FunctionHandler]: Unknown extern function debug_lockdep_rcu_enabled [2022-12-14 07:08:37,900 WARN L623 FunctionHandler]: Unknown extern function debug_lockdep_rcu_enabled [2022-12-14 07:08:37,901 WARN L623 FunctionHandler]: Unknown extern function idr_find_slowpath [2022-12-14 07:08:37,911 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-12-14 07:08:37,918 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-12-14 07:08:37,991 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 07:08:38,104 WARN L623 FunctionHandler]: Unknown extern function __tty_alloc_driver [2022-12-14 07:08:38,420 WARN L623 FunctionHandler]: Unknown extern function mutex_lock_nested [2022-12-14 07:08:38,421 WARN L623 FunctionHandler]: Unknown extern function mutex_lock_nested [2022-12-14 07:08:38,422 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 07:08:38,422 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 07:08:38,427 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 07:08:38,428 WARN L623 FunctionHandler]: Unknown extern function mutex_lock_nested [2022-12-14 07:08:38,428 WARN L623 FunctionHandler]: Unknown extern function idr_alloc [2022-12-14 07:08:38,429 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 07:08:38,430 WARN L623 FunctionHandler]: Unknown extern function idr_remove [2022-12-14 07:08:38,430 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 07:08:38,434 WARN L623 FunctionHandler]: Unknown extern function mutex_lock_nested [2022-12-14 07:08:38,434 WARN L623 FunctionHandler]: Unknown extern function idr_remove [2022-12-14 07:08:38,435 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 07:08:38,441 WARN L623 FunctionHandler]: Unknown extern function put_device [2022-12-14 07:08:38,441 WARN L623 FunctionHandler]: Unknown extern function usb_put_intf [2022-12-14 07:08:38,441 WARN L623 FunctionHandler]: Unknown extern function usb_put_dev [2022-12-14 07:08:38,442 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 07:08:38,446 WARN L623 FunctionHandler]: Unknown extern function usb_autopm_get_interface [2022-12-14 07:08:38,447 WARN L623 FunctionHandler]: Unknown extern function tty_port_install [2022-12-14 07:08:38,447 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 07:08:38,448 WARN L623 FunctionHandler]: Unknown extern function usb_autopm_put_interface [2022-12-14 07:08:38,449 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 07:08:38,453 WARN L623 FunctionHandler]: Unknown extern function mutex_lock_nested [2022-12-14 07:08:38,454 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 07:08:38,459 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 07:08:38,459 WARN L623 FunctionHandler]: Unknown extern function tty_port_open [2022-12-14 07:08:38,468 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 07:08:38,469 WARN L623 FunctionHandler]: Unknown extern function tty_port_hangup [2022-12-14 07:08:38,473 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 07:08:38,474 WARN L623 FunctionHandler]: Unknown extern function tty_port_close [2022-12-14 07:08:38,479 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 07:08:38,480 WARN L623 FunctionHandler]: Unknown extern function mutex_lock_nested [2022-12-14 07:08:38,481 WARN L623 FunctionHandler]: Unknown extern function usb_autopm_put_interface [2022-12-14 07:08:38,481 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 07:08:38,486 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 07:08:38,492 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 07:08:38,498 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 07:08:38,504 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 07:08:38,505 WARN L623 FunctionHandler]: Unknown extern function mutex_lock_nested [2022-12-14 07:08:38,506 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 07:08:38,511 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 07:08:38,517 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 07:08:38,522 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 07:08:38,529 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 07:08:38,530 WARN L623 FunctionHandler]: Unknown extern function tty_termios_copy_hw [2022-12-14 07:08:38,534 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 07:08:38,539 WARN L623 FunctionHandler]: Unknown extern function seq_puts [2022-12-14 07:08:38,540 WARN L623 FunctionHandler]: Unknown extern function seq_printf [2022-12-14 07:08:38,540 WARN L623 FunctionHandler]: Unknown extern function seq_printf [2022-12-14 07:08:38,541 WARN L623 FunctionHandler]: Unknown extern function seq_printf [2022-12-14 07:08:38,542 WARN L623 FunctionHandler]: Unknown extern function seq_printf [2022-12-14 07:08:38,542 WARN L623 FunctionHandler]: Unknown extern function seq_printf [2022-12-14 07:08:38,543 WARN L623 FunctionHandler]: Unknown extern function seq_printf [2022-12-14 07:08:38,543 WARN L623 FunctionHandler]: Unknown extern function seq_printf [2022-12-14 07:08:38,543 WARN L623 FunctionHandler]: Unknown extern function seq_putc [2022-12-14 07:08:38,543 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 07:08:38,547 WARN L623 FunctionHandler]: Unknown extern function single_open [2022-12-14 07:08:38,552 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 07:08:38,558 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 07:08:38,563 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 07:08:38,569 WARN L623 FunctionHandler]: Unknown extern function tty_port_tty_wakeup [2022-12-14 07:08:38,572 WARN L623 FunctionHandler]: Unknown extern function usb_poison_urb [2022-12-14 07:08:38,573 WARN L623 FunctionHandler]: Unknown extern function usb_poison_urb [2022-12-14 07:08:38,573 WARN L623 FunctionHandler]: Unknown extern function usb_poison_urb [2022-12-14 07:08:38,574 WARN L623 FunctionHandler]: Unknown extern function usb_poison_urb [2022-12-14 07:08:38,577 WARN L623 FunctionHandler]: Unknown extern function usb_unpoison_urb [2022-12-14 07:08:38,578 WARN L623 FunctionHandler]: Unknown extern function usb_unpoison_urb [2022-12-14 07:08:38,578 WARN L623 FunctionHandler]: Unknown extern function usb_unpoison_urb [2022-12-14 07:08:38,578 WARN L623 FunctionHandler]: Unknown extern function usb_unpoison_urb [2022-12-14 07:08:38,583 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 07:08:38,584 WARN L623 FunctionHandler]: Unknown extern function usb_free_urb [2022-12-14 07:08:38,584 WARN L623 FunctionHandler]: Unknown extern function usb_free_urb [2022-12-14 07:08:38,584 WARN L623 FunctionHandler]: Unknown extern function usb_free_urb [2022-12-14 07:08:38,584 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 07:08:38,585 WARN L623 FunctionHandler]: Unknown extern function usb_free_urb [2022-12-14 07:08:38,585 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 07:08:38,585 WARN L623 FunctionHandler]: Unknown extern function __kfifo_free [2022-12-14 07:08:38,586 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 07:08:38,586 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 07:08:38,586 WARN L623 FunctionHandler]: Unknown extern function tty_port_destroy [2022-12-14 07:08:38,586 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 07:08:38,590 WARN L623 FunctionHandler]: Unknown extern function usb_get_dev [2022-12-14 07:08:38,591 WARN L623 FunctionHandler]: Unknown extern function usb_get_intf [2022-12-14 07:08:38,591 WARN L623 FunctionHandler]: Unknown extern function __mutex_init [2022-12-14 07:08:38,595 WARN L623 FunctionHandler]: Unknown extern function usb_match_one_id [2022-12-14 07:08:38,599 WARN L623 FunctionHandler]: Unknown extern function usb_match_id [2022-12-14 07:08:38,600 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 07:08:38,601 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 07:08:38,617 WARN L623 FunctionHandler]: Unknown extern function sprintf [2022-12-14 07:08:38,623 WARN L623 FunctionHandler]: Unknown extern function mutex_lock_nested [2022-12-14 07:08:38,624 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 07:08:38,625 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 07:08:38,625 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 07:08:38,625 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 07:08:38,626 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 07:08:38,627 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 07:08:38,628 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 07:08:38,630 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 07:08:38,631 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 07:08:38,632 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 07:08:38,635 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 07:08:38,636 WARN L623 FunctionHandler]: Unknown extern function _dev_info [2022-12-14 07:08:38,636 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 07:08:38,637 WARN L623 FunctionHandler]: Unknown extern function _dev_info [2022-12-14 07:08:38,637 WARN L623 FunctionHandler]: Unknown extern function _dev_info [2022-12-14 07:08:38,638 WARN L623 FunctionHandler]: Unknown extern function dev_warn [2022-12-14 07:08:38,638 WARN L623 FunctionHandler]: Unknown extern function _dev_info [2022-12-14 07:08:38,639 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 07:08:38,640 WARN L623 FunctionHandler]: Unknown extern function tty_port_init [2022-12-14 07:08:38,640 WARN L623 FunctionHandler]: Unknown extern function __raw_spin_lock_init [2022-12-14 07:08:38,640 WARN L623 FunctionHandler]: Unknown extern function __init_work [2022-12-14 07:08:38,641 WARN L623 FunctionHandler]: Unknown extern function lockdep_init_map [2022-12-14 07:08:38,641 WARN L623 FunctionHandler]: Unknown extern function device_initialize [2022-12-14 07:08:38,643 WARN L623 FunctionHandler]: Unknown extern function usb_alloc_urb [2022-12-14 07:08:38,645 WARN L623 FunctionHandler]: Unknown extern function __kfifo_alloc [2022-12-14 07:08:38,646 WARN L623 FunctionHandler]: Unknown extern function usb_alloc_urb [2022-12-14 07:08:38,647 WARN L623 FunctionHandler]: Unknown extern function usb_alloc_urb [2022-12-14 07:08:38,649 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 07:08:38,650 WARN L623 FunctionHandler]: Unknown extern function usb_alloc_urb [2022-12-14 07:08:38,652 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 07:08:38,653 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 07:08:38,653 WARN L623 FunctionHandler]: Unknown extern function dev_set_name [2022-12-14 07:08:38,654 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 07:08:38,655 WARN L623 FunctionHandler]: Unknown extern function device_add [2022-12-14 07:08:38,655 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 07:08:38,660 WARN L623 FunctionHandler]: Unknown extern function mutex_lock_nested [2022-12-14 07:08:38,660 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 07:08:38,660 WARN L623 FunctionHandler]: Unknown extern function tty_port_tty_get [2022-12-14 07:08:38,661 WARN L623 FunctionHandler]: Unknown extern function tty_vhangup [2022-12-14 07:08:38,661 WARN L623 FunctionHandler]: Unknown extern function tty_kref_put [2022-12-14 07:08:38,661 WARN L623 FunctionHandler]: Unknown extern function __wake_up [2022-12-14 07:08:38,661 WARN L623 FunctionHandler]: Unknown extern function device_del [2022-12-14 07:08:38,662 WARN L623 FunctionHandler]: Unknown extern function _dev_info [2022-12-14 07:08:38,677 WARN L623 FunctionHandler]: Unknown extern function bus_register [2022-12-14 07:08:38,677 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 07:08:38,678 WARN L623 FunctionHandler]: Unknown extern function tty_set_operations [2022-12-14 07:08:38,679 WARN L623 FunctionHandler]: Unknown extern function tty_register_driver [2022-12-14 07:08:38,679 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 07:08:38,680 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 07:08:38,680 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 07:08:38,680 WARN L623 FunctionHandler]: Unknown extern function tty_unregister_driver [2022-12-14 07:08:38,680 WARN L623 FunctionHandler]: Unknown extern function bus_unregister [2022-12-14 07:08:38,681 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 07:08:38,681 WARN L623 FunctionHandler]: Unknown extern function put_tty_driver [2022-12-14 07:08:38,684 WARN L623 FunctionHandler]: Unknown extern function tty_unregister_driver [2022-12-14 07:08:38,685 WARN L623 FunctionHandler]: Unknown extern function put_tty_driver [2022-12-14 07:08:38,685 WARN L623 FunctionHandler]: Unknown extern function bus_unregister [2022-12-14 07:08:38,689 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-12-14 07:08:38,690 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-12-14 07:08:38,691 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-12-14 07:08:38,692 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-12-14 07:08:38,693 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-12-14 07:08:38,694 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-12-14 07:08:38,695 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-12-14 07:08:38,696 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-12-14 07:08:38,697 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-12-14 07:08:38,698 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-12-14 07:08:38,702 WARN L623 FunctionHandler]: Unknown extern function usb_disabled [2022-12-14 07:08:38,703 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_fmt [2022-12-14 07:08:38,703 WARN L623 FunctionHandler]: Unknown extern function mutex_lock_nested [2022-12-14 07:08:38,704 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 07:08:38,704 WARN L623 FunctionHandler]: Unknown extern function list_del [2022-12-14 07:08:38,704 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 07:08:38,704 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 07:08:38,708 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 07:08:38,708 WARN L623 FunctionHandler]: Unknown extern function mutex_lock_nested [2022-12-14 07:08:38,708 WARN L623 FunctionHandler]: Unknown extern function list_del [2022-12-14 07:08:38,708 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 07:08:38,711 WARN L623 FunctionHandler]: Unknown extern function driver_attach [2022-12-14 07:08:38,712 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 07:08:38,726 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 07:08:38,742 WARN L623 FunctionHandler]: Unknown extern function ldv_initialize [2022-12-14 07:08:38,748 WARN L623 FunctionHandler]: Unknown extern function ldv_destruct_7 [2022-12-14 07:08:38,755 WARN L623 FunctionHandler]: Unknown extern function single_release [2022-12-14 07:08:38,755 WARN L623 FunctionHandler]: Unknown extern function seq_read [2022-12-14 07:08:38,755 WARN L623 FunctionHandler]: Unknown extern function seq_lseek [2022-12-14 07:08:38,758 WARN L623 FunctionHandler]: Unknown extern function ldv_reset_resume_5 [2022-12-14 07:08:38,759 WARN L623 FunctionHandler]: Unknown extern function queue_work_on [2022-12-14 07:08:38,760 WARN L623 FunctionHandler]: Unknown extern function queue_delayed_work_on [2022-12-14 07:08:38,760 WARN L623 FunctionHandler]: Unknown extern function queue_work_on [2022-12-14 07:08:38,761 WARN L623 FunctionHandler]: Unknown extern function flush_workqueue [2022-12-14 07:08:38,761 WARN L623 FunctionHandler]: Unknown extern function queue_delayed_work_on [2022-12-14 07:08:38,762 WARN L623 FunctionHandler]: Unknown extern function cancel_work_sync [2022-12-14 07:08:38,763 WARN L623 FunctionHandler]: Unknown extern function usb_register_driver [2022-12-14 07:08:38,763 WARN L623 FunctionHandler]: Unknown extern function usb_deregister [2022-12-14 07:08:38,763 WARN L623 FunctionHandler]: Unknown extern function usb_deregister [2022-12-14 07:08:38,764 WARN L623 FunctionHandler]: Unknown extern function usb_register_driver [2022-12-14 07:08:38,764 WARN L623 FunctionHandler]: Unknown extern function usb_deregister [2022-12-14 07:08:38,764 WARN L623 FunctionHandler]: Unknown extern function usb_deregister [2022-12-14 07:08:38,799 WARN L623 FunctionHandler]: Unknown extern function __bad_percpu_size [2022-12-14 07:08:38,817 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irq [2022-12-14 07:08:38,820 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_unlock_irq [2022-12-14 07:08:38,824 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_unlock_irqrestore [2022-12-14 07:08:38,877 WARN L623 FunctionHandler]: Unknown extern function tty_termios_baud_rate [2022-12-14 07:08:38,895 WARN L623 FunctionHandler]: Unknown extern function tty_insert_flip_string_flags [2022-12-14 07:08:38,899 WARN L623 FunctionHandler]: Unknown extern function tty_insert_flip_string_fixed_flag [2022-12-14 07:08:38,945 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 07:08:38,947 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irqsave [2022-12-14 07:08:38,948 WARN L623 FunctionHandler]: Unknown extern function usb_kill_urb [2022-12-14 07:08:38,948 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irqsave [2022-12-14 07:08:38,949 WARN L623 FunctionHandler]: Unknown extern function usb_kill_urb [2022-12-14 07:08:38,950 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irqsave [2022-12-14 07:08:38,950 WARN L623 FunctionHandler]: Unknown extern function __kfifo_out_r [2022-12-14 07:08:38,950 WARN L623 FunctionHandler]: Unknown extern function __kfifo_out [2022-12-14 07:08:38,951 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irqsave [2022-12-14 07:08:38,952 WARN L623 FunctionHandler]: Unknown extern function find_first_bit [2022-12-14 07:08:38,952 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irqsave [2022-12-14 07:08:38,953 WARN L623 FunctionHandler]: Unknown extern function usb_submit_urb [2022-12-14 07:08:38,953 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 07:08:38,953 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irqsave [2022-12-14 07:08:38,955 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irqsave [2022-12-14 07:08:38,955 WARN L623 FunctionHandler]: Unknown extern function __kfifo_in_r [2022-12-14 07:08:38,955 WARN L623 FunctionHandler]: Unknown extern function __kfifo_in [2022-12-14 07:08:38,956 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irqsave [2022-12-14 07:08:38,957 WARN L623 FunctionHandler]: Unknown extern function __kfifo_max_r [2022-12-14 07:08:38,958 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 07:08:38,959 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irqsave [2022-12-14 07:08:38,959 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 07:08:38,961 WARN L623 FunctionHandler]: Unknown extern function jiffies_to_msecs [2022-12-14 07:08:38,961 WARN L623 FunctionHandler]: Unknown extern function jiffies_to_msecs [2022-12-14 07:08:38,961 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 07:08:38,962 WARN L623 FunctionHandler]: Unknown extern function schedule_timeout_interruptible [2022-12-14 07:08:38,966 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 07:08:38,967 WARN L623 FunctionHandler]: Unknown extern function usb_submit_urb [2022-12-14 07:08:38,967 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 07:08:38,968 WARN L623 FunctionHandler]: Unknown extern function usb_kill_urb [2022-12-14 07:08:38,969 WARN L623 FunctionHandler]: Unknown extern function tty_flip_buffer_push [2022-12-14 07:08:38,971 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 07:08:38,972 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 07:08:38,973 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 07:08:38,973 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 07:08:38,974 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irqsave [2022-12-14 07:08:38,975 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irqsave [2022-12-14 07:08:38,977 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 07:08:38,977 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 07:08:38,978 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 07:08:38,979 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irqsave [2022-12-14 07:08:38,983 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irqsave [2022-12-14 07:08:38,985 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irqsave [2022-12-14 07:08:38,986 WARN L623 FunctionHandler]: Unknown extern function __might_sleep [2022-12-14 07:08:38,986 WARN L623 FunctionHandler]: Unknown extern function prepare_to_wait_event [2022-12-14 07:08:38,987 WARN L623 FunctionHandler]: Unknown extern function schedule [2022-12-14 07:08:38,987 WARN L623 FunctionHandler]: Unknown extern function finish_wait [2022-12-14 07:08:38,988 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irqsave [2022-12-14 07:08:38,990 WARN L623 FunctionHandler]: Unknown extern function handle_sysrq [2022-12-14 07:08:38,991 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 07:08:38,992 WARN L623 FunctionHandler]: Unknown extern function tty_ldisc_ref [2022-12-14 07:08:38,992 WARN L623 FunctionHandler]: Unknown extern function tty_ldisc_deref [2022-12-14 07:08:38,992 WARN L623 FunctionHandler]: Unknown extern function __wake_up [2022-12-14 07:08:38,993 WARN L623 FunctionHandler]: Unknown extern function tty_hangup [2022-12-14 07:08:39,004 WARN L623 FunctionHandler]: Unknown extern function ldv_suspend_4 [2022-12-14 07:08:39,004 WARN L623 FunctionHandler]: Unknown extern function ldv_release_4 [2022-12-14 07:08:39,004 WARN L623 FunctionHandler]: Unknown extern function ldv_release_4 [2022-12-14 07:08:39,005 WARN L623 FunctionHandler]: Unknown extern function ldv_probe_4 [2022-12-14 07:08:39,005 WARN L623 FunctionHandler]: Unknown extern function queue_work_on [2022-12-14 07:08:39,005 WARN L623 FunctionHandler]: Unknown extern function queue_delayed_work_on [2022-12-14 07:08:39,006 WARN L623 FunctionHandler]: Unknown extern function queue_work_on [2022-12-14 07:08:39,006 WARN L623 FunctionHandler]: Unknown extern function flush_workqueue [2022-12-14 07:08:39,006 WARN L623 FunctionHandler]: Unknown extern function queue_delayed_work_on [2022-12-14 07:08:39,049 WARN L623 FunctionHandler]: Unknown extern function usb_autopm_get_interface [2022-12-14 07:08:39,050 WARN L623 FunctionHandler]: Unknown extern function usb_autopm_put_interface [2022-12-14 07:08:39,050 WARN L623 FunctionHandler]: Unknown extern function _dev_info [2022-12-14 07:08:39,051 WARN L623 FunctionHandler]: Unknown extern function usb_autopm_put_interface [2022-12-14 07:08:39,054 WARN L623 FunctionHandler]: Unknown extern function usb_autopm_get_interface [2022-12-14 07:08:39,055 WARN L623 FunctionHandler]: Unknown extern function _dev_info [2022-12-14 07:08:39,055 WARN L623 FunctionHandler]: Unknown extern function usb_autopm_put_interface [2022-12-14 07:08:39,059 WARN L623 FunctionHandler]: Unknown extern function usb_store_new_id [2022-12-14 07:08:39,059 WARN L623 FunctionHandler]: Unknown extern function usb_store_new_id [2022-12-14 07:08:39,063 WARN L623 FunctionHandler]: Unknown extern function usb_show_dynids [2022-12-14 07:08:39,067 WARN L623 FunctionHandler]: Unknown extern function list_del [2022-12-14 07:08:39,067 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 07:08:39,068 WARN L623 FunctionHandler]: Unknown extern function __raw_spin_lock_init [2022-12-14 07:08:39,069 WARN L623 FunctionHandler]: Unknown extern function driver_register [2022-12-14 07:08:39,069 WARN L623 FunctionHandler]: Unknown extern function driver_unregister [2022-12-14 07:08:39,071 WARN L623 FunctionHandler]: Unknown extern function queue_work_on [2022-12-14 07:08:39,071 WARN L623 FunctionHandler]: Unknown extern function queue_delayed_work_on [2022-12-14 07:08:39,071 WARN L623 FunctionHandler]: Unknown extern function queue_work_on [2022-12-14 07:08:39,072 WARN L623 FunctionHandler]: Unknown extern function flush_workqueue [2022-12-14 07:08:39,072 WARN L623 FunctionHandler]: Unknown extern function queue_delayed_work_on [2022-12-14 07:08:39,072 WARN L623 FunctionHandler]: Unknown extern function tty_register_device [2022-12-14 07:08:39,073 WARN L623 FunctionHandler]: Unknown extern function tty_unregister_device [2022-12-14 07:08:39,076 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_3c8d8920-80db-4c92-bf8e-04ce55ddabb3/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--usb--serial--usbserial.ko-entry_point.cil.out.i[313744,313757] [2022-12-14 07:08:39,100 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 07:08:39,106 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 07:08:39,112 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 07:08:39,112 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 07:08:39,112 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 07:08:39,113 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 07:08:39,114 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 07:08:39,114 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 07:08:39,114 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 07:08:39,118 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 07:08:39,156 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 07:08:39,224 WARN L623 FunctionHandler]: Unknown extern function __list_add [2022-12-14 07:08:39,225 WARN L623 FunctionHandler]: Unknown extern function __xadd_wrong_size [2022-12-14 07:08:39,226 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock [2022-12-14 07:08:39,226 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_unlock [2022-12-14 07:08:39,238 WARN L623 FunctionHandler]: Unknown extern function debug_lockdep_rcu_enabled [2022-12-14 07:08:39,239 WARN L623 FunctionHandler]: Unknown extern function debug_lockdep_rcu_enabled [2022-12-14 07:08:39,239 WARN L623 FunctionHandler]: Unknown extern function idr_find_slowpath [2022-12-14 07:08:39,240 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-12-14 07:08:39,241 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-12-14 07:08:39,242 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 07:08:39,245 WARN L623 FunctionHandler]: Unknown extern function __tty_alloc_driver [2022-12-14 07:08:39,259 WARN L623 FunctionHandler]: Unknown extern function mutex_lock_nested [2022-12-14 07:08:39,260 WARN L623 FunctionHandler]: Unknown extern function mutex_lock_nested [2022-12-14 07:08:39,261 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 07:08:39,261 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 07:08:39,262 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 07:08:39,263 WARN L623 FunctionHandler]: Unknown extern function mutex_lock_nested [2022-12-14 07:08:39,263 WARN L623 FunctionHandler]: Unknown extern function idr_alloc [2022-12-14 07:08:39,263 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 07:08:39,264 WARN L623 FunctionHandler]: Unknown extern function idr_remove [2022-12-14 07:08:39,264 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 07:08:39,264 WARN L623 FunctionHandler]: Unknown extern function mutex_lock_nested [2022-12-14 07:08:39,265 WARN L623 FunctionHandler]: Unknown extern function idr_remove [2022-12-14 07:08:39,265 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 07:08:39,268 WARN L623 FunctionHandler]: Unknown extern function put_device [2022-12-14 07:08:39,269 WARN L623 FunctionHandler]: Unknown extern function usb_put_intf [2022-12-14 07:08:39,269 WARN L623 FunctionHandler]: Unknown extern function usb_put_dev [2022-12-14 07:08:39,269 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 07:08:39,272 WARN L623 FunctionHandler]: Unknown extern function usb_autopm_get_interface [2022-12-14 07:08:39,272 WARN L623 FunctionHandler]: Unknown extern function tty_port_install [2022-12-14 07:08:39,272 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 07:08:39,274 WARN L623 FunctionHandler]: Unknown extern function usb_autopm_put_interface [2022-12-14 07:08:39,275 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 07:08:39,276 WARN L623 FunctionHandler]: Unknown extern function mutex_lock_nested [2022-12-14 07:08:39,279 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 07:08:39,280 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 07:08:39,281 WARN L623 FunctionHandler]: Unknown extern function tty_port_open [2022-12-14 07:08:39,285 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 07:08:39,286 WARN L623 FunctionHandler]: Unknown extern function tty_port_hangup [2022-12-14 07:08:39,287 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 07:08:39,288 WARN L623 FunctionHandler]: Unknown extern function tty_port_close [2022-12-14 07:08:39,289 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 07:08:39,292 WARN L623 FunctionHandler]: Unknown extern function mutex_lock_nested [2022-12-14 07:08:39,292 WARN L623 FunctionHandler]: Unknown extern function usb_autopm_put_interface [2022-12-14 07:08:39,292 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 07:08:39,293 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 07:08:39,298 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 07:08:39,302 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 07:08:39,306 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 07:08:39,307 WARN L623 FunctionHandler]: Unknown extern function mutex_lock_nested [2022-12-14 07:08:39,309 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 07:08:39,310 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 07:08:39,313 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 07:08:39,316 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 07:08:39,331 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 07:08:39,337 WARN L623 FunctionHandler]: Unknown extern function tty_termios_copy_hw [2022-12-14 07:08:39,338 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 07:08:39,343 WARN L623 FunctionHandler]: Unknown extern function seq_puts [2022-12-14 07:08:39,345 WARN L623 FunctionHandler]: Unknown extern function seq_printf [2022-12-14 07:08:39,346 WARN L623 FunctionHandler]: Unknown extern function seq_printf [2022-12-14 07:08:39,347 WARN L623 FunctionHandler]: Unknown extern function seq_printf [2022-12-14 07:08:39,347 WARN L623 FunctionHandler]: Unknown extern function seq_printf [2022-12-14 07:08:39,348 WARN L623 FunctionHandler]: Unknown extern function seq_printf [2022-12-14 07:08:39,348 WARN L623 FunctionHandler]: Unknown extern function seq_printf [2022-12-14 07:08:39,348 WARN L623 FunctionHandler]: Unknown extern function seq_printf [2022-12-14 07:08:39,348 WARN L623 FunctionHandler]: Unknown extern function seq_putc [2022-12-14 07:08:39,349 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 07:08:39,349 WARN L623 FunctionHandler]: Unknown extern function single_open [2022-12-14 07:08:39,351 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 07:08:39,356 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 07:08:39,361 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 07:08:39,366 WARN L623 FunctionHandler]: Unknown extern function tty_port_tty_wakeup [2022-12-14 07:08:39,366 WARN L623 FunctionHandler]: Unknown extern function usb_poison_urb [2022-12-14 07:08:39,366 WARN L623 FunctionHandler]: Unknown extern function usb_poison_urb [2022-12-14 07:08:39,367 WARN L623 FunctionHandler]: Unknown extern function usb_poison_urb [2022-12-14 07:08:39,367 WARN L623 FunctionHandler]: Unknown extern function usb_poison_urb [2022-12-14 07:08:39,367 WARN L623 FunctionHandler]: Unknown extern function usb_unpoison_urb [2022-12-14 07:08:39,368 WARN L623 FunctionHandler]: Unknown extern function usb_unpoison_urb [2022-12-14 07:08:39,368 WARN L623 FunctionHandler]: Unknown extern function usb_unpoison_urb [2022-12-14 07:08:39,368 WARN L623 FunctionHandler]: Unknown extern function usb_unpoison_urb [2022-12-14 07:08:39,369 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 07:08:39,369 WARN L623 FunctionHandler]: Unknown extern function usb_free_urb [2022-12-14 07:08:39,370 WARN L623 FunctionHandler]: Unknown extern function usb_free_urb [2022-12-14 07:08:39,370 WARN L623 FunctionHandler]: Unknown extern function usb_free_urb [2022-12-14 07:08:39,370 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 07:08:39,370 WARN L623 FunctionHandler]: Unknown extern function usb_free_urb [2022-12-14 07:08:39,370 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 07:08:39,371 WARN L623 FunctionHandler]: Unknown extern function __kfifo_free [2022-12-14 07:08:39,371 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 07:08:39,371 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 07:08:39,371 WARN L623 FunctionHandler]: Unknown extern function tty_port_destroy [2022-12-14 07:08:39,371 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 07:08:39,372 WARN L623 FunctionHandler]: Unknown extern function usb_get_dev [2022-12-14 07:08:39,374 WARN L623 FunctionHandler]: Unknown extern function usb_get_intf [2022-12-14 07:08:39,374 WARN L623 FunctionHandler]: Unknown extern function __mutex_init [2022-12-14 07:08:39,375 WARN L623 FunctionHandler]: Unknown extern function usb_match_one_id [2022-12-14 07:08:39,375 WARN L623 FunctionHandler]: Unknown extern function usb_match_id [2022-12-14 07:08:39,376 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 07:08:39,377 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 07:08:39,382 WARN L623 FunctionHandler]: Unknown extern function sprintf [2022-12-14 07:08:39,385 WARN L623 FunctionHandler]: Unknown extern function mutex_lock_nested [2022-12-14 07:08:39,385 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 07:08:39,386 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 07:08:39,386 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 07:08:39,386 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 07:08:39,386 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 07:08:39,387 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 07:08:39,388 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 07:08:39,389 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 07:08:39,389 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 07:08:39,390 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 07:08:39,392 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 07:08:39,392 WARN L623 FunctionHandler]: Unknown extern function _dev_info [2022-12-14 07:08:39,393 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 07:08:39,393 WARN L623 FunctionHandler]: Unknown extern function _dev_info [2022-12-14 07:08:39,393 WARN L623 FunctionHandler]: Unknown extern function _dev_info [2022-12-14 07:08:39,394 WARN L623 FunctionHandler]: Unknown extern function dev_warn [2022-12-14 07:08:39,394 WARN L623 FunctionHandler]: Unknown extern function _dev_info [2022-12-14 07:08:39,395 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 07:08:39,395 WARN L623 FunctionHandler]: Unknown extern function tty_port_init [2022-12-14 07:08:39,396 WARN L623 FunctionHandler]: Unknown extern function __raw_spin_lock_init [2022-12-14 07:08:39,396 WARN L623 FunctionHandler]: Unknown extern function __init_work [2022-12-14 07:08:39,397 WARN L623 FunctionHandler]: Unknown extern function lockdep_init_map [2022-12-14 07:08:39,398 WARN L623 FunctionHandler]: Unknown extern function device_initialize [2022-12-14 07:08:39,399 WARN L623 FunctionHandler]: Unknown extern function usb_alloc_urb [2022-12-14 07:08:39,401 WARN L623 FunctionHandler]: Unknown extern function __kfifo_alloc [2022-12-14 07:08:39,402 WARN L623 FunctionHandler]: Unknown extern function usb_alloc_urb [2022-12-14 07:08:39,404 WARN L623 FunctionHandler]: Unknown extern function usb_alloc_urb [2022-12-14 07:08:39,405 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 07:08:39,406 WARN L623 FunctionHandler]: Unknown extern function usb_alloc_urb [2022-12-14 07:08:39,408 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 07:08:39,408 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 07:08:39,409 WARN L623 FunctionHandler]: Unknown extern function dev_set_name [2022-12-14 07:08:39,409 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 07:08:39,410 WARN L623 FunctionHandler]: Unknown extern function device_add [2022-12-14 07:08:39,410 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 07:08:39,412 WARN L623 FunctionHandler]: Unknown extern function mutex_lock_nested [2022-12-14 07:08:39,412 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 07:08:39,412 WARN L623 FunctionHandler]: Unknown extern function tty_port_tty_get [2022-12-14 07:08:39,412 WARN L623 FunctionHandler]: Unknown extern function tty_vhangup [2022-12-14 07:08:39,412 WARN L623 FunctionHandler]: Unknown extern function tty_kref_put [2022-12-14 07:08:39,413 WARN L623 FunctionHandler]: Unknown extern function __wake_up [2022-12-14 07:08:39,413 WARN L623 FunctionHandler]: Unknown extern function device_del [2022-12-14 07:08:39,414 WARN L623 FunctionHandler]: Unknown extern function _dev_info [2022-12-14 07:08:39,421 WARN L623 FunctionHandler]: Unknown extern function bus_register [2022-12-14 07:08:39,421 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 07:08:39,422 WARN L623 FunctionHandler]: Unknown extern function tty_set_operations [2022-12-14 07:08:39,422 WARN L623 FunctionHandler]: Unknown extern function tty_register_driver [2022-12-14 07:08:39,423 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 07:08:39,423 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 07:08:39,423 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 07:08:39,423 WARN L623 FunctionHandler]: Unknown extern function tty_unregister_driver [2022-12-14 07:08:39,424 WARN L623 FunctionHandler]: Unknown extern function bus_unregister [2022-12-14 07:08:39,424 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 07:08:39,424 WARN L623 FunctionHandler]: Unknown extern function put_tty_driver [2022-12-14 07:08:39,424 WARN L623 FunctionHandler]: Unknown extern function tty_unregister_driver [2022-12-14 07:08:39,424 WARN L623 FunctionHandler]: Unknown extern function put_tty_driver [2022-12-14 07:08:39,425 WARN L623 FunctionHandler]: Unknown extern function bus_unregister [2022-12-14 07:08:39,426 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-12-14 07:08:39,427 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-12-14 07:08:39,427 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-12-14 07:08:39,428 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-12-14 07:08:39,429 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-12-14 07:08:39,429 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-12-14 07:08:39,430 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-12-14 07:08:39,431 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-12-14 07:08:39,431 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-12-14 07:08:39,432 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-12-14 07:08:39,437 WARN L623 FunctionHandler]: Unknown extern function usb_disabled [2022-12-14 07:08:39,438 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_fmt [2022-12-14 07:08:39,439 WARN L623 FunctionHandler]: Unknown extern function mutex_lock_nested [2022-12-14 07:08:39,439 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 07:08:39,439 WARN L623 FunctionHandler]: Unknown extern function list_del [2022-12-14 07:08:39,439 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 07:08:39,440 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 07:08:39,440 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 07:08:39,440 WARN L623 FunctionHandler]: Unknown extern function mutex_lock_nested [2022-12-14 07:08:39,440 WARN L623 FunctionHandler]: Unknown extern function list_del [2022-12-14 07:08:39,440 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 07:08:39,442 WARN L623 FunctionHandler]: Unknown extern function driver_attach [2022-12-14 07:08:39,444 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 07:08:39,445 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 07:08:39,449 WARN L623 FunctionHandler]: Unknown extern function ldv_initialize [2022-12-14 07:08:39,453 WARN L623 FunctionHandler]: Unknown extern function ldv_destruct_7 [2022-12-14 07:08:39,454 WARN L623 FunctionHandler]: Unknown extern function single_release [2022-12-14 07:08:39,454 WARN L623 FunctionHandler]: Unknown extern function seq_read [2022-12-14 07:08:39,454 WARN L623 FunctionHandler]: Unknown extern function seq_lseek [2022-12-14 07:08:39,456 WARN L623 FunctionHandler]: Unknown extern function ldv_reset_resume_5 [2022-12-14 07:08:39,457 WARN L623 FunctionHandler]: Unknown extern function queue_work_on [2022-12-14 07:08:39,458 WARN L623 FunctionHandler]: Unknown extern function queue_delayed_work_on [2022-12-14 07:08:39,458 WARN L623 FunctionHandler]: Unknown extern function queue_work_on [2022-12-14 07:08:39,459 WARN L623 FunctionHandler]: Unknown extern function flush_workqueue [2022-12-14 07:08:39,459 WARN L623 FunctionHandler]: Unknown extern function queue_delayed_work_on [2022-12-14 07:08:39,460 WARN L623 FunctionHandler]: Unknown extern function cancel_work_sync [2022-12-14 07:08:39,460 WARN L623 FunctionHandler]: Unknown extern function usb_register_driver [2022-12-14 07:08:39,461 WARN L623 FunctionHandler]: Unknown extern function usb_deregister [2022-12-14 07:08:39,461 WARN L623 FunctionHandler]: Unknown extern function usb_deregister [2022-12-14 07:08:39,461 WARN L623 FunctionHandler]: Unknown extern function usb_register_driver [2022-12-14 07:08:39,461 WARN L623 FunctionHandler]: Unknown extern function usb_deregister [2022-12-14 07:08:39,462 WARN L623 FunctionHandler]: Unknown extern function usb_deregister [2022-12-14 07:08:39,463 WARN L623 FunctionHandler]: Unknown extern function __bad_percpu_size [2022-12-14 07:08:39,464 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irq [2022-12-14 07:08:39,464 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_unlock_irq [2022-12-14 07:08:39,464 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_unlock_irqrestore [2022-12-14 07:08:39,466 WARN L623 FunctionHandler]: Unknown extern function tty_termios_baud_rate [2022-12-14 07:08:39,467 WARN L623 FunctionHandler]: Unknown extern function tty_insert_flip_string_flags [2022-12-14 07:08:39,468 WARN L623 FunctionHandler]: Unknown extern function tty_insert_flip_string_fixed_flag [2022-12-14 07:08:39,469 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 07:08:39,471 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irqsave [2022-12-14 07:08:39,472 WARN L623 FunctionHandler]: Unknown extern function usb_kill_urb [2022-12-14 07:08:39,472 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irqsave [2022-12-14 07:08:39,472 WARN L623 FunctionHandler]: Unknown extern function usb_kill_urb [2022-12-14 07:08:39,473 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irqsave [2022-12-14 07:08:39,474 WARN L623 FunctionHandler]: Unknown extern function __kfifo_out_r [2022-12-14 07:08:39,474 WARN L623 FunctionHandler]: Unknown extern function __kfifo_out [2022-12-14 07:08:39,475 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irqsave [2022-12-14 07:08:39,475 WARN L623 FunctionHandler]: Unknown extern function find_first_bit [2022-12-14 07:08:39,478 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irqsave [2022-12-14 07:08:39,478 WARN L623 FunctionHandler]: Unknown extern function usb_submit_urb [2022-12-14 07:08:39,479 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 07:08:39,479 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irqsave [2022-12-14 07:08:39,480 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irqsave [2022-12-14 07:08:39,481 WARN L623 FunctionHandler]: Unknown extern function __kfifo_in_r [2022-12-14 07:08:39,481 WARN L623 FunctionHandler]: Unknown extern function __kfifo_in [2022-12-14 07:08:39,482 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irqsave [2022-12-14 07:08:39,482 WARN L623 FunctionHandler]: Unknown extern function __kfifo_max_r [2022-12-14 07:08:39,483 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 07:08:39,484 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irqsave [2022-12-14 07:08:39,485 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 07:08:39,487 WARN L623 FunctionHandler]: Unknown extern function jiffies_to_msecs [2022-12-14 07:08:39,487 WARN L623 FunctionHandler]: Unknown extern function jiffies_to_msecs [2022-12-14 07:08:39,487 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 07:08:39,487 WARN L623 FunctionHandler]: Unknown extern function schedule_timeout_interruptible [2022-12-14 07:08:39,491 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 07:08:39,491 WARN L623 FunctionHandler]: Unknown extern function usb_submit_urb [2022-12-14 07:08:39,492 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 07:08:39,492 WARN L623 FunctionHandler]: Unknown extern function usb_kill_urb [2022-12-14 07:08:39,494 WARN L623 FunctionHandler]: Unknown extern function tty_flip_buffer_push [2022-12-14 07:08:39,496 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 07:08:39,497 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 07:08:39,497 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 07:08:39,498 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 07:08:39,500 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irqsave [2022-12-14 07:08:39,501 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irqsave [2022-12-14 07:08:39,502 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 07:08:39,503 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 07:08:39,503 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 07:08:39,505 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irqsave [2022-12-14 07:08:39,506 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irqsave [2022-12-14 07:08:39,508 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irqsave [2022-12-14 07:08:39,509 WARN L623 FunctionHandler]: Unknown extern function __might_sleep [2022-12-14 07:08:39,509 WARN L623 FunctionHandler]: Unknown extern function prepare_to_wait_event [2022-12-14 07:08:39,510 WARN L623 FunctionHandler]: Unknown extern function schedule [2022-12-14 07:08:39,510 WARN L623 FunctionHandler]: Unknown extern function finish_wait [2022-12-14 07:08:39,511 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irqsave [2022-12-14 07:08:39,513 WARN L623 FunctionHandler]: Unknown extern function handle_sysrq [2022-12-14 07:08:39,515 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 07:08:39,515 WARN L623 FunctionHandler]: Unknown extern function tty_ldisc_ref [2022-12-14 07:08:39,518 WARN L623 FunctionHandler]: Unknown extern function tty_ldisc_deref [2022-12-14 07:08:39,518 WARN L623 FunctionHandler]: Unknown extern function __wake_up [2022-12-14 07:08:39,518 WARN L623 FunctionHandler]: Unknown extern function tty_hangup [2022-12-14 07:08:39,521 WARN L623 FunctionHandler]: Unknown extern function ldv_suspend_4 [2022-12-14 07:08:39,521 WARN L623 FunctionHandler]: Unknown extern function ldv_release_4 [2022-12-14 07:08:39,521 WARN L623 FunctionHandler]: Unknown extern function ldv_release_4 [2022-12-14 07:08:39,522 WARN L623 FunctionHandler]: Unknown extern function ldv_probe_4 [2022-12-14 07:08:39,522 WARN L623 FunctionHandler]: Unknown extern function queue_work_on [2022-12-14 07:08:39,523 WARN L623 FunctionHandler]: Unknown extern function queue_delayed_work_on [2022-12-14 07:08:39,523 WARN L623 FunctionHandler]: Unknown extern function queue_work_on [2022-12-14 07:08:39,523 WARN L623 FunctionHandler]: Unknown extern function flush_workqueue [2022-12-14 07:08:39,524 WARN L623 FunctionHandler]: Unknown extern function queue_delayed_work_on [2022-12-14 07:08:39,525 WARN L623 FunctionHandler]: Unknown extern function usb_autopm_get_interface [2022-12-14 07:08:39,530 WARN L623 FunctionHandler]: Unknown extern function usb_autopm_put_interface [2022-12-14 07:08:39,531 WARN L623 FunctionHandler]: Unknown extern function _dev_info [2022-12-14 07:08:39,533 WARN L623 FunctionHandler]: Unknown extern function usb_autopm_put_interface [2022-12-14 07:08:39,534 WARN L623 FunctionHandler]: Unknown extern function usb_autopm_get_interface [2022-12-14 07:08:39,537 WARN L623 FunctionHandler]: Unknown extern function _dev_info [2022-12-14 07:08:39,537 WARN L623 FunctionHandler]: Unknown extern function usb_autopm_put_interface [2022-12-14 07:08:39,539 WARN L623 FunctionHandler]: Unknown extern function usb_store_new_id [2022-12-14 07:08:39,539 WARN L623 FunctionHandler]: Unknown extern function usb_store_new_id [2022-12-14 07:08:39,539 WARN L623 FunctionHandler]: Unknown extern function usb_show_dynids [2022-12-14 07:08:39,540 WARN L623 FunctionHandler]: Unknown extern function list_del [2022-12-14 07:08:39,541 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 07:08:39,541 WARN L623 FunctionHandler]: Unknown extern function __raw_spin_lock_init [2022-12-14 07:08:39,542 WARN L623 FunctionHandler]: Unknown extern function driver_register [2022-12-14 07:08:39,542 WARN L623 FunctionHandler]: Unknown extern function driver_unregister [2022-12-14 07:08:39,543 WARN L623 FunctionHandler]: Unknown extern function queue_work_on [2022-12-14 07:08:39,544 WARN L623 FunctionHandler]: Unknown extern function queue_delayed_work_on [2022-12-14 07:08:39,544 WARN L623 FunctionHandler]: Unknown extern function queue_work_on [2022-12-14 07:08:39,544 WARN L623 FunctionHandler]: Unknown extern function flush_workqueue [2022-12-14 07:08:39,544 WARN L623 FunctionHandler]: Unknown extern function queue_delayed_work_on [2022-12-14 07:08:39,545 WARN L623 FunctionHandler]: Unknown extern function tty_register_device [2022-12-14 07:08:39,545 WARN L623 FunctionHandler]: Unknown extern function tty_unregister_device [2022-12-14 07:08:39,545 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_3c8d8920-80db-4c92-bf8e-04ce55ddabb3/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--usb--serial--usbserial.ko-entry_point.cil.out.i[313744,313757] [2022-12-14 07:08:39,547 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 07:08:39,549 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 07:08:39,550 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 07:08:39,551 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 07:08:39,551 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 07:08:39,551 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 07:08:39,552 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 07:08:39,552 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 07:08:39,552 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 07:08:39,553 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 07:08:39,666 INFO L208 MainTranslator]: Completed translation [2022-12-14 07:08:39,666 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:08:39 WrapperNode [2022-12-14 07:08:39,666 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 07:08:39,667 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 07:08:39,667 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 07:08:39,667 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 07:08:39,673 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:08:39" (1/1) ... [2022-12-14 07:08:39,740 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:08:39" (1/1) ... [2022-12-14 07:08:39,904 INFO L138 Inliner]: procedures = 388, calls = 3928, calls flagged for inlining = 190, calls inlined = 187, statements flattened = 7911 [2022-12-14 07:08:39,904 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 07:08:39,904 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 07:08:39,904 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 07:08:39,905 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 07:08:39,911 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:08:39" (1/1) ... [2022-12-14 07:08:39,912 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:08:39" (1/1) ... [2022-12-14 07:08:39,931 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:08:39" (1/1) ... [2022-12-14 07:08:39,931 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:08:39" (1/1) ... [2022-12-14 07:08:40,017 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:08:39" (1/1) ... [2022-12-14 07:08:40,031 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:08:39" (1/1) ... [2022-12-14 07:08:40,086 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:08:39" (1/1) ... [2022-12-14 07:08:40,098 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:08:39" (1/1) ... [2022-12-14 07:08:40,127 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 07:08:40,128 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 07:08:40,128 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 07:08:40,128 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 07:08:40,128 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:08:39" (1/1) ... [2022-12-14 07:08:40,133 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 07:08:40,140 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c8d8920-80db-4c92-bf8e-04ce55ddabb3/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 07:08:40,150 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c8d8920-80db-4c92-bf8e-04ce55ddabb3/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 07:08:40,152 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c8d8920-80db-4c92-bf8e-04ce55ddabb3/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 07:08:40,176 INFO L130 BoogieDeclarations]: Found specification of procedure serial_proc_open [2022-12-14 07:08:40,176 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_proc_open [2022-12-14 07:08:40,176 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_generic_throttle [2022-12-14 07:08:40,176 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_generic_throttle [2022-12-14 07:08:40,176 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_try_module_get [2022-12-14 07:08:40,176 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_try_module_get [2022-12-14 07:08:40,176 INFO L130 BoogieDeclarations]: Found specification of procedure usb_submit_urb [2022-12-14 07:08:40,176 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_submit_urb [2022-12-14 07:08:40,176 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-12-14 07:08:40,176 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-12-14 07:08:40,176 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_xfer_int [2022-12-14 07:08:40,176 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_xfer_int [2022-12-14 07:08:40,176 INFO L130 BoogieDeclarations]: Found specification of procedure serial_port_dtr_rts [2022-12-14 07:08:40,176 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_port_dtr_rts [2022-12-14 07:08:40,177 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_device_remove [2022-12-14 07:08:40,177 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_device_remove [2022-12-14 07:08:40,177 INFO L130 BoogieDeclarations]: Found specification of procedure debug_lockdep_rcu_enabled [2022-12-14 07:08:40,177 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_lockdep_rcu_enabled [2022-12-14 07:08:40,177 INFO L130 BoogieDeclarations]: Found specification of procedure serial_chars_in_buffer [2022-12-14 07:08:40,177 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_chars_in_buffer [2022-12-14 07:08:40,177 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-12-14 07:08:40,177 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-12-14 07:08:40,177 INFO L130 BoogieDeclarations]: Found specification of procedure char_buf_ptr [2022-12-14 07:08:40,177 INFO L138 BoogieDeclarations]: Found implementation of procedure char_buf_ptr [2022-12-14 07:08:40,177 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_driver_5 [2022-12-14 07:08:40,177 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_driver_5 [2022-12-14 07:08:40,177 INFO L130 BoogieDeclarations]: Found specification of procedure serial_port_activate [2022-12-14 07:08:40,177 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_port_activate [2022-12-14 07:08:40,178 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit_unlock [2022-12-14 07:08:40,178 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit_unlock [2022-12-14 07:08:40,178 INFO L130 BoogieDeclarations]: Found specification of procedure activate_work_1 [2022-12-14 07:08:40,178 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_work_1 [2022-12-14 07:08:40,178 INFO L130 BoogieDeclarations]: Found specification of procedure usb_autopm_get_interface [2022-12-14 07:08:40,178 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_autopm_get_interface [2022-12-14 07:08:40,178 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_deregister_drivers [2022-12-14 07:08:40,178 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_deregister_drivers [2022-12-14 07:08:40,178 INFO L130 BoogieDeclarations]: Found specification of procedure usb_store_new_id [2022-12-14 07:08:40,178 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_store_new_id [2022-12-14 07:08:40,178 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_dir_in [2022-12-14 07:08:40,178 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_dir_in [2022-12-14 07:08:40,178 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_port_work [2022-12-14 07:08:40,178 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_port_work [2022-12-14 07:08:40,178 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2022-12-14 07:08:40,179 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2022-12-14 07:08:40,179 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_port_poison_urbs [2022-12-14 07:08:40,179 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_port_poison_urbs [2022-12-14 07:08:40,179 INFO L130 BoogieDeclarations]: Found specification of procedure serial_hangup [2022-12-14 07:08:40,179 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_hangup [2022-12-14 07:08:40,179 INFO L130 BoogieDeclarations]: Found specification of procedure serial_ioctl [2022-12-14 07:08:40,179 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_ioctl [2022-12-14 07:08:40,179 INFO L130 BoogieDeclarations]: Found specification of procedure serial_write_room [2022-12-14 07:08:40,179 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_write_room [2022-12-14 07:08:40,179 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~TO~VOID [2022-12-14 07:08:40,179 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~TO~VOID [2022-12-14 07:08:40,179 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-12-14 07:08:40,179 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-12-14 07:08:40,179 INFO L130 BoogieDeclarations]: Found specification of procedure usb_unpoison_urb [2022-12-14 07:08:40,179 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_unpoison_urb [2022-12-14 07:08:40,179 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_device_probe [2022-12-14 07:08:40,180 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_device_probe [2022-12-14 07:08:40,180 INFO L130 BoogieDeclarations]: Found specification of procedure __xadd_wrong_size [2022-12-14 07:08:40,180 INFO L130 BoogieDeclarations]: Found specification of procedure serial_get_icount [2022-12-14 07:08:40,180 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_get_icount [2022-12-14 07:08:40,180 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-12-14 07:08:40,180 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-12-14 07:08:40,180 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-12-14 07:08:40,180 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-12-14 07:08:40,180 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_generic_submit_read_urb [2022-12-14 07:08:40,180 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_generic_submit_read_urb [2022-12-14 07:08:40,180 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-14 07:08:40,180 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2022-12-14 07:08:40,180 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2022-12-14 07:08:40,180 INFO L130 BoogieDeclarations]: Found specification of procedure put_tty_driver [2022-12-14 07:08:40,181 INFO L138 BoogieDeclarations]: Found implementation of procedure put_tty_driver [2022-12-14 07:08:40,181 INFO L130 BoogieDeclarations]: Found specification of procedure serial_cleanup [2022-12-14 07:08:40,181 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_cleanup [2022-12-14 07:08:40,181 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-12-14 07:08:40,181 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-12-14 07:08:40,181 INFO L130 BoogieDeclarations]: Found specification of procedure serial_port_carrier_raised [2022-12-14 07:08:40,181 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_port_carrier_raised [2022-12-14 07:08:40,181 INFO L130 BoogieDeclarations]: Found specification of procedure __kfifo_uint_must_check_helper [2022-12-14 07:08:40,181 INFO L138 BoogieDeclarations]: Found implementation of procedure __kfifo_uint_must_check_helper [2022-12-14 07:08:40,181 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2022-12-14 07:08:40,181 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2022-12-14 07:08:40,181 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-12-14 07:08:40,181 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_probe [2022-12-14 07:08:40,181 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_probe [2022-12-14 07:08:40,182 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2022-12-14 07:08:40,182 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2022-12-14 07:08:40,182 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-12-14 07:08:40,182 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_reset_resume [2022-12-14 07:08:40,182 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_reset_resume [2022-12-14 07:08:40,182 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_generic_read_bulk_callback [2022-12-14 07:08:40,182 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_generic_read_bulk_callback [2022-12-14 07:08:40,182 INFO L130 BoogieDeclarations]: Found specification of procedure usb_autopm_put_interface [2022-12-14 07:08:40,182 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_autopm_put_interface [2022-12-14 07:08:40,182 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-14 07:08:40,182 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_urb [2022-12-14 07:08:40,182 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_urb [2022-12-14 07:08:40,182 INFO L130 BoogieDeclarations]: Found specification of procedure serial_port_shutdown [2022-12-14 07:08:40,182 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_port_shutdown [2022-12-14 07:08:40,182 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~pm_message_t~0~TO~int [2022-12-14 07:08:40,183 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~pm_message_t~0~TO~int [2022-12-14 07:08:40,183 INFO L130 BoogieDeclarations]: Found specification of procedure kref_put [2022-12-14 07:08:40,183 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_put [2022-12-14 07:08:40,183 INFO L130 BoogieDeclarations]: Found specification of procedure __read_once_size [2022-12-14 07:08:40,183 INFO L138 BoogieDeclarations]: Found implementation of procedure __read_once_size [2022-12-14 07:08:40,183 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2022-12-14 07:08:40,183 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2022-12-14 07:08:40,183 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-12-14 07:08:40,183 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 07:08:40,183 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-12-14 07:08:40,183 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-12-14 07:08:40,183 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-12-14 07:08:40,183 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-12-14 07:08:40,183 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2022-12-14 07:08:40,184 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2022-12-14 07:08:40,184 INFO L130 BoogieDeclarations]: Found specification of procedure usb_register_driver [2022-12-14 07:08:40,184 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_register_driver [2022-12-14 07:08:40,184 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_urb [2022-12-14 07:08:40,184 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_urb [2022-12-14 07:08:40,184 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_put [2022-12-14 07:08:40,184 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_put [2022-12-14 07:08:40,184 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-12-14 07:08:40,184 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-12-14 07:08:40,184 INFO L130 BoogieDeclarations]: Found specification of procedure destroy_serial [2022-12-14 07:08:40,184 INFO L138 BoogieDeclarations]: Found implementation of procedure destroy_serial [2022-12-14 07:08:40,184 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2022-12-14 07:08:40,184 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2022-12-14 07:08:40,184 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 07:08:40,184 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 07:08:40,185 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_dir_out [2022-12-14 07:08:40,185 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_dir_out [2022-12-14 07:08:40,185 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2022-12-14 07:08:40,185 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2022-12-14 07:08:40,185 INFO L130 BoogieDeclarations]: Found specification of procedure serial_break [2022-12-14 07:08:40,185 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_break [2022-12-14 07:08:40,185 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_generic_write_start [2022-12-14 07:08:40,185 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_generic_write_start [2022-12-14 07:08:40,185 INFO L130 BoogieDeclarations]: Found specification of procedure usb_get_intfdata [2022-12-14 07:08:40,185 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_get_intfdata [2022-12-14 07:08:40,185 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~int~TO~int [2022-12-14 07:08:40,185 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~int~TO~int [2022-12-14 07:08:40,185 INFO L130 BoogieDeclarations]: Found specification of procedure kref_sub [2022-12-14 07:08:40,185 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_sub [2022-12-14 07:08:40,185 INFO L130 BoogieDeclarations]: Found specification of procedure usb_translate_errors [2022-12-14 07:08:40,186 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_translate_errors [2022-12-14 07:08:40,186 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-12-14 07:08:40,186 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-12-14 07:08:40,186 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-12-14 07:08:40,186 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-12-14 07:08:40,186 INFO L130 BoogieDeclarations]: Found specification of procedure new_id_show [2022-12-14 07:08:40,186 INFO L138 BoogieDeclarations]: Found implementation of procedure new_id_show [2022-12-14 07:08:40,186 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_generic_write [2022-12-14 07:08:40,186 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_generic_write [2022-12-14 07:08:40,186 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_maxp [2022-12-14 07:08:40,186 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_maxp [2022-12-14 07:08:40,186 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_put [2022-12-14 07:08:40,186 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_put [2022-12-14 07:08:40,186 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-12-14 07:08:40,186 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-12-14 07:08:40,187 INFO L130 BoogieDeclarations]: Found specification of procedure usb_fill_bulk_urb [2022-12-14 07:08:40,187 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_fill_bulk_urb [2022-12-14 07:08:40,187 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-12-14 07:08:40,187 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-12-14 07:08:40,187 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_release_4 [2022-12-14 07:08:40,187 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_release_4 [2022-12-14 07:08:40,187 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_suspend [2022-12-14 07:08:40,187 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_suspend [2022-12-14 07:08:40,187 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_generic_msr_changed [2022-12-14 07:08:40,187 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_generic_msr_changed [2022-12-14 07:08:40,187 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_is_int_in [2022-12-14 07:08:40,187 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_is_int_in [2022-12-14 07:08:40,187 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-12-14 07:08:40,187 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-12-14 07:08:40,187 INFO L130 BoogieDeclarations]: Found specification of procedure new_id_store [2022-12-14 07:08:40,187 INFO L138 BoogieDeclarations]: Found implementation of procedure new_id_store [2022-12-14 07:08:40,188 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_debug_data [2022-12-14 07:08:40,188 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_debug_data [2022-12-14 07:08:40,188 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-14 07:08:40,188 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-12-14 07:08:40,188 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-12-14 07:08:40,188 INFO L130 BoogieDeclarations]: Found specification of procedure serial_unthrottle [2022-12-14 07:08:40,188 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_unthrottle [2022-12-14 07:08:40,188 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_generic_submit_read_urbs [2022-12-14 07:08:40,188 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_generic_submit_read_urbs [2022-12-14 07:08:40,188 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-12-14 07:08:40,188 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~int [2022-12-14 07:08:40,188 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~int [2022-12-14 07:08:40,188 INFO L130 BoogieDeclarations]: Found specification of procedure serial_throttle [2022-12-14 07:08:40,188 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_throttle [2022-12-14 07:08:40,188 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-12-14 07:08:40,189 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~X~int~TO~int [2022-12-14 07:08:40,189 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~X~int~TO~int [2022-12-14 07:08:40,189 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_deregister [2022-12-14 07:08:40,189 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_deregister [2022-12-14 07:08:40,189 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2022-12-14 07:08:40,189 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2022-12-14 07:08:40,189 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_generic_resume [2022-12-14 07:08:40,189 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_generic_resume [2022-12-14 07:08:40,189 INFO L130 BoogieDeclarations]: Found specification of procedure queue_work_on [2022-12-14 07:08:40,189 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_work_on [2022-12-14 07:08:40,189 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2022-12-14 07:08:40,189 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2022-12-14 07:08:40,189 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2022-12-14 07:08:40,189 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2022-12-14 07:08:40,189 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_port_softint [2022-12-14 07:08:40,190 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_port_softint [2022-12-14 07:08:40,190 INFO L130 BoogieDeclarations]: Found specification of procedure serial_tiocmget [2022-12-14 07:08:40,190 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_tiocmget [2022-12-14 07:08:40,190 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_urb [2022-12-14 07:08:40,190 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_urb [2022-12-14 07:08:40,190 INFO L130 BoogieDeclarations]: Found specification of procedure jiffies_to_msecs [2022-12-14 07:08:40,190 INFO L138 BoogieDeclarations]: Found implementation of procedure jiffies_to_msecs [2022-12-14 07:08:40,190 INFO L130 BoogieDeclarations]: Found specification of procedure bus_unregister [2022-12-14 07:08:40,190 INFO L138 BoogieDeclarations]: Found implementation of procedure bus_unregister [2022-12-14 07:08:40,190 INFO L130 BoogieDeclarations]: Found specification of procedure usb_poison_urb [2022-12-14 07:08:40,190 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_poison_urb [2022-12-14 07:08:40,190 INFO L130 BoogieDeclarations]: Found specification of procedure usb_deregister [2022-12-14 07:08:40,190 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_deregister [2022-12-14 07:08:40,190 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_xfer_bulk [2022-12-14 07:08:40,190 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_xfer_bulk [2022-12-14 07:08:40,191 INFO L130 BoogieDeclarations]: Found specification of procedure serial_wait_until_sent [2022-12-14 07:08:40,191 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_wait_until_sent [2022-12-14 07:08:40,191 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2022-12-14 07:08:40,191 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2022-12-14 07:08:40,191 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_device_match [2022-12-14 07:08:40,191 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_device_match [2022-12-14 07:08:40,191 INFO L130 BoogieDeclarations]: Found specification of procedure serial_open [2022-12-14 07:08:40,191 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_open [2022-12-14 07:08:40,191 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-12-14 07:08:40,191 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-12-14 07:08:40,191 INFO L130 BoogieDeclarations]: Found specification of procedure usb_fill_int_urb [2022-12-14 07:08:40,191 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_fill_int_urb [2022-12-14 07:08:40,191 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-12-14 07:08:40,191 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-12-14 07:08:40,191 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-14 07:08:40,192 INFO L130 BoogieDeclarations]: Found specification of procedure serial_set_termios [2022-12-14 07:08:40,192 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_set_termios [2022-12-14 07:08:40,192 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_resume [2022-12-14 07:08:40,192 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_resume [2022-12-14 07:08:40,192 INFO L130 BoogieDeclarations]: Found specification of procedure single_release [2022-12-14 07:08:40,192 INFO L138 BoogieDeclarations]: Found implementation of procedure single_release [2022-12-14 07:08:40,192 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-12-14 07:08:40,192 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-12-14 07:08:40,192 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_disconnect [2022-12-14 07:08:40,192 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_disconnect [2022-12-14 07:08:40,192 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_generic_unthrottle [2022-12-14 07:08:40,192 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_generic_unthrottle [2022-12-14 07:08:40,192 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_port_get_by_minor [2022-12-14 07:08:40,192 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_port_get_by_minor [2022-12-14 07:08:40,192 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2022-12-14 07:08:40,192 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2022-12-14 07:08:40,193 INFO L130 BoogieDeclarations]: Found specification of procedure serial_install [2022-12-14 07:08:40,193 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_install [2022-12-14 07:08:40,193 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_handle_sysrq_char [2022-12-14 07:08:40,193 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_handle_sysrq_char [2022-12-14 07:08:40,193 INFO L130 BoogieDeclarations]: Found specification of procedure serial_tiocmset [2022-12-14 07:08:40,193 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_tiocmset [2022-12-14 07:08:40,193 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2022-12-14 07:08:40,193 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2022-12-14 07:08:40,193 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_unpoison_port_urbs [2022-12-14 07:08:40,193 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_unpoison_port_urbs [2022-12-14 07:08:40,193 INFO L130 BoogieDeclarations]: Found specification of procedure serial_write [2022-12-14 07:08:40,193 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_write [2022-12-14 07:08:40,193 INFO L130 BoogieDeclarations]: Found specification of procedure idr_remove [2022-12-14 07:08:40,193 INFO L138 BoogieDeclarations]: Found implementation of procedure idr_remove [2022-12-14 07:08:40,193 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2022-12-14 07:08:40,194 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2022-12-14 07:08:40,194 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2022-12-14 07:08:40,194 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2022-12-14 07:08:40,194 INFO L130 BoogieDeclarations]: Found specification of procedure get_iface_id [2022-12-14 07:08:40,194 INFO L138 BoogieDeclarations]: Found implementation of procedure get_iface_id [2022-12-14 07:08:40,194 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 07:08:40,194 INFO L130 BoogieDeclarations]: Found specification of procedure tty_unregister_driver [2022-12-14 07:08:40,194 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_unregister_driver [2022-12-14 07:08:40,852 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 07:08:40,856 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 07:08:41,271 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-12-14 07:08:50,963 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 07:08:52,066 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 07:08:52,066 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-14 07:08:52,073 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 07:08:52 BoogieIcfgContainer [2022-12-14 07:08:52,073 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 07:08:52,075 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 07:08:52,076 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 07:08:52,078 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 07:08:52,078 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 07:08:37" (1/3) ... [2022-12-14 07:08:52,079 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@47a2aff4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 07:08:52, skipping insertion in model container [2022-12-14 07:08:52,079 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:08:39" (2/3) ... [2022-12-14 07:08:52,079 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@47a2aff4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 07:08:52, skipping insertion in model container [2022-12-14 07:08:52,080 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 07:08:52" (3/3) ... [2022-12-14 07:08:52,081 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-08_1a-drivers--usb--serial--usbserial.ko-entry_point.cil.out.i [2022-12-14 07:08:52,099 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 07:08:52,099 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-14 07:08:52,192 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 07:08:52,198 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=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@5e869929, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 07:08:52,198 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-12-14 07:08:52,211 INFO L276 IsEmpty]: Start isEmpty. Operand has 1802 states, 1152 states have (on average 1.359375) internal successors, (1566), 1188 states have internal predecessors, (1566), 520 states have call successors, (520), 129 states have call predecessors, (520), 128 states have return successors, (509), 496 states have call predecessors, (509), 509 states have call successors, (509) [2022-12-14 07:08:52,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 229 [2022-12-14 07:08:52,255 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:08:52,256 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 07:08:52,256 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 07:08:52,261 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:08:52,261 INFO L85 PathProgramCache]: Analyzing trace with hash 553811207, now seen corresponding path program 1 times [2022-12-14 07:08:52,270 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 07:08:52,270 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1696680569] [2022-12-14 07:08:52,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:08:52,271 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 07:08:52,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:08:53,361 INFO L134 CoverageAnalysis]: Checked inductivity of 748 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 748 trivial. 0 not checked. [2022-12-14 07:08:53,361 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 07:08:53,362 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1696680569] [2022-12-14 07:08:53,362 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1696680569] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 07:08:53,362 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 07:08:53,362 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 07:08:53,364 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1230546972] [2022-12-14 07:08:53,364 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 07:08:53,367 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 07:08:53,368 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 07:08:53,394 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 07:08:53,394 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 07:08:53,398 INFO L87 Difference]: Start difference. First operand has 1802 states, 1152 states have (on average 1.359375) internal successors, (1566), 1188 states have internal predecessors, (1566), 520 states have call successors, (520), 129 states have call predecessors, (520), 128 states have return successors, (509), 496 states have call predecessors, (509), 509 states have call successors, (509) Second operand has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 3 states have call successors, (29), 2 states have call predecessors, (29), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2022-12-14 07:08:55,219 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.81s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:08:57,491 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 [] [2022-12-14 07:09:02,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:09:02,236 INFO L93 Difference]: Finished difference Result 4942 states and 7211 transitions. [2022-12-14 07:09:02,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 07:09:02,238 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 3 states have call successors, (29), 2 states have call predecessors, (29), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) Word has length 228 [2022-12-14 07:09:02,239 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:09:02,269 INFO L225 Difference]: With dead ends: 4942 [2022-12-14 07:09:02,269 INFO L226 Difference]: Without dead ends: 3146 [2022-12-14 07:09:02,289 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 07:09:02,292 INFO L413 NwaCegarLoop]: 2681 mSDtfsCounter, 1977 mSDsluCounter, 2222 mSDsCounter, 0 mSdLazyCounter, 628 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1977 SdHoareTripleChecker+Valid, 4903 SdHoareTripleChecker+Invalid, 631 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 628 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.6s IncrementalHoareTripleChecker+Time [2022-12-14 07:09:02,293 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1977 Valid, 4903 Invalid, 631 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 628 Invalid, 1 Unknown, 0 Unchecked, 8.6s Time] [2022-12-14 07:09:02,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3146 states. [2022-12-14 07:09:02,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3146 to 3140. [2022-12-14 07:09:02,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3140 states, 2026 states have (on average 1.3543928923988153) internal successors, (2744), 2069 states have internal predecessors, (2744), 877 states have call successors, (877), 237 states have call predecessors, (877), 236 states have return successors, (887), 849 states have call predecessors, (887), 875 states have call successors, (887) [2022-12-14 07:09:02,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3140 states to 3140 states and 4508 transitions. [2022-12-14 07:09:02,569 INFO L78 Accepts]: Start accepts. Automaton has 3140 states and 4508 transitions. Word has length 228 [2022-12-14 07:09:02,570 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:09:02,571 INFO L495 AbstractCegarLoop]: Abstraction has 3140 states and 4508 transitions. [2022-12-14 07:09:02,571 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 3 states have call successors, (29), 2 states have call predecessors, (29), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2022-12-14 07:09:02,571 INFO L276 IsEmpty]: Start isEmpty. Operand 3140 states and 4508 transitions. [2022-12-14 07:09:02,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 239 [2022-12-14 07:09:02,583 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:09:02,584 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 07:09:02,584 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 07:09:02,584 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 07:09:02,584 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:09:02,584 INFO L85 PathProgramCache]: Analyzing trace with hash -588103622, now seen corresponding path program 1 times [2022-12-14 07:09:02,585 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 07:09:02,585 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [641853332] [2022-12-14 07:09:02,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:09:02,585 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 07:09:02,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:09:03,167 INFO L134 CoverageAnalysis]: Checked inductivity of 748 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 748 trivial. 0 not checked. [2022-12-14 07:09:03,167 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 07:09:03,167 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [641853332] [2022-12-14 07:09:03,168 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [641853332] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 07:09:03,168 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 07:09:03,168 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 07:09:03,168 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [974874355] [2022-12-14 07:09:03,168 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 07:09:03,169 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 07:09:03,170 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 07:09:03,170 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 07:09:03,170 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 07:09:03,171 INFO L87 Difference]: Start difference. First operand 3140 states and 4508 transitions. Second operand has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 3 states have call successors, (31), 2 states have call predecessors, (31), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2022-12-14 07:09:05,253 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:09:07,554 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:09:09,199 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.64s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:09:13,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:09:13,067 INFO L93 Difference]: Finished difference Result 6363 states and 9169 transitions. [2022-12-14 07:09:13,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 07:09:13,067 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 3 states have call successors, (31), 2 states have call predecessors, (31), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) Word has length 238 [2022-12-14 07:09:13,069 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:09:13,095 INFO L225 Difference]: With dead ends: 6363 [2022-12-14 07:09:13,095 INFO L226 Difference]: Without dead ends: 4612 [2022-12-14 07:09:13,102 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 07:09:13,103 INFO L413 NwaCegarLoop]: 2727 mSDtfsCounter, 2106 mSDsluCounter, 2199 mSDsCounter, 0 mSdLazyCounter, 631 mSolverCounterSat, 1 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2106 SdHoareTripleChecker+Valid, 4926 SdHoareTripleChecker+Invalid, 634 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 631 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.7s IncrementalHoareTripleChecker+Time [2022-12-14 07:09:13,104 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2106 Valid, 4926 Invalid, 634 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 631 Invalid, 2 Unknown, 0 Unchecked, 9.7s Time] [2022-12-14 07:09:13,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4612 states. [2022-12-14 07:09:13,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4612 to 4605. [2022-12-14 07:09:13,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4605 states, 2976 states have (on average 1.3558467741935485) internal successors, (4035), 3041 states have internal predecessors, (4035), 1276 states have call successors, (1276), 353 states have call predecessors, (1276), 352 states have return successors, (1298), 1235 states have call predecessors, (1298), 1274 states have call successors, (1298) [2022-12-14 07:09:13,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4605 states to 4605 states and 6609 transitions. [2022-12-14 07:09:13,226 INFO L78 Accepts]: Start accepts. Automaton has 4605 states and 6609 transitions. Word has length 238 [2022-12-14 07:09:13,227 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:09:13,227 INFO L495 AbstractCegarLoop]: Abstraction has 4605 states and 6609 transitions. [2022-12-14 07:09:13,227 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 3 states have call successors, (31), 2 states have call predecessors, (31), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2022-12-14 07:09:13,227 INFO L276 IsEmpty]: Start isEmpty. Operand 4605 states and 6609 transitions. [2022-12-14 07:09:13,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 249 [2022-12-14 07:09:13,235 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:09:13,236 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 07:09:13,236 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-14 07:09:13,236 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 07:09:13,236 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:09:13,236 INFO L85 PathProgramCache]: Analyzing trace with hash 1093327716, now seen corresponding path program 1 times [2022-12-14 07:09:13,236 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 07:09:13,236 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1306593321] [2022-12-14 07:09:13,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:09:13,237 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 07:09:13,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:09:13,678 INFO L134 CoverageAnalysis]: Checked inductivity of 748 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 748 trivial. 0 not checked. [2022-12-14 07:09:13,678 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 07:09:13,678 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1306593321] [2022-12-14 07:09:13,678 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1306593321] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 07:09:13,679 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 07:09:13,679 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 07:09:13,679 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [31195091] [2022-12-14 07:09:13,679 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 07:09:13,680 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 07:09:13,680 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 07:09:13,680 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 07:09:13,681 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 07:09:13,681 INFO L87 Difference]: Start difference. First operand 4605 states and 6609 transitions. Second operand has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 2 states have call successors, (34), 2 states have call predecessors, (34), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2022-12-14 07:09:15,764 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:09:17,979 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:09:22,566 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:09:22,567 INFO L93 Difference]: Finished difference Result 12059 states and 17371 transitions. [2022-12-14 07:09:22,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 07:09:22,567 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 2 states have call successors, (34), 2 states have call predecessors, (34), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) Word has length 248 [2022-12-14 07:09:22,568 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:09:22,600 INFO L225 Difference]: With dead ends: 12059 [2022-12-14 07:09:22,600 INFO L226 Difference]: Without dead ends: 7501 [2022-12-14 07:09:22,616 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 07:09:22,617 INFO L413 NwaCegarLoop]: 2805 mSDtfsCounter, 2331 mSDsluCounter, 2223 mSDsCounter, 0 mSdLazyCounter, 653 mSolverCounterSat, 6 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2331 SdHoareTripleChecker+Valid, 5028 SdHoareTripleChecker+Invalid, 661 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 653 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.7s IncrementalHoareTripleChecker+Time [2022-12-14 07:09:22,617 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2331 Valid, 5028 Invalid, 661 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 653 Invalid, 2 Unknown, 0 Unchecked, 8.7s Time] [2022-12-14 07:09:22,625 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7501 states. [2022-12-14 07:09:22,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7501 to 7485. [2022-12-14 07:09:22,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7485 states, 4826 states have (on average 1.355159552424368) internal successors, (6540), 4936 states have internal predecessors, (6540), 2074 states have call successors, (2074), 587 states have call predecessors, (2074), 584 states have return successors, (2200), 2002 states have call predecessors, (2200), 2072 states have call successors, (2200) [2022-12-14 07:09:22,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7485 states to 7485 states and 10814 transitions. [2022-12-14 07:09:22,853 INFO L78 Accepts]: Start accepts. Automaton has 7485 states and 10814 transitions. Word has length 248 [2022-12-14 07:09:22,853 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:09:22,853 INFO L495 AbstractCegarLoop]: Abstraction has 7485 states and 10814 transitions. [2022-12-14 07:09:22,853 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 2 states have call successors, (34), 2 states have call predecessors, (34), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2022-12-14 07:09:22,853 INFO L276 IsEmpty]: Start isEmpty. Operand 7485 states and 10814 transitions. [2022-12-14 07:09:22,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 254 [2022-12-14 07:09:22,865 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:09:22,865 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 07:09:22,865 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-14 07:09:22,865 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 07:09:22,865 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:09:22,866 INFO L85 PathProgramCache]: Analyzing trace with hash -368673751, now seen corresponding path program 1 times [2022-12-14 07:09:22,866 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 07:09:22,866 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [679901549] [2022-12-14 07:09:22,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:09:22,866 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 07:09:23,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:09:23,268 INFO L134 CoverageAnalysis]: Checked inductivity of 754 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 754 trivial. 0 not checked. [2022-12-14 07:09:23,268 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 07:09:23,268 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [679901549] [2022-12-14 07:09:23,268 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [679901549] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 07:09:23,268 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 07:09:23,268 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 07:09:23,268 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [740187454] [2022-12-14 07:09:23,268 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 07:09:23,269 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 07:09:23,269 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 07:09:23,269 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 07:09:23,269 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 07:09:23,269 INFO L87 Difference]: Start difference. First operand 7485 states and 10814 transitions. Second operand has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 2 states have call successors, (36), 2 states have call predecessors, (36), 1 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) [2022-12-14 07:09:25,332 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:09:27,552 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:09:32,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:09:32,429 INFO L93 Difference]: Finished difference Result 21112 states and 30366 transitions. [2022-12-14 07:09:32,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 07:09:32,430 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 2 states have call successors, (36), 2 states have call predecessors, (36), 1 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) Word has length 253 [2022-12-14 07:09:32,430 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:09:32,481 INFO L225 Difference]: With dead ends: 21112 [2022-12-14 07:09:32,481 INFO L226 Difference]: Without dead ends: 13687 [2022-12-14 07:09:32,504 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 07:09:32,504 INFO L413 NwaCegarLoop]: 2770 mSDtfsCounter, 2034 mSDsluCounter, 2163 mSDsCounter, 0 mSdLazyCounter, 738 mSolverCounterSat, 1 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2034 SdHoareTripleChecker+Valid, 4933 SdHoareTripleChecker+Invalid, 741 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 738 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.8s IncrementalHoareTripleChecker+Time [2022-12-14 07:09:32,504 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2034 Valid, 4933 Invalid, 741 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 738 Invalid, 2 Unknown, 0 Unchecked, 8.8s Time] [2022-12-14 07:09:32,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13687 states. [2022-12-14 07:09:32,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13687 to 13671. [2022-12-14 07:09:32,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13671 states, 8774 states have (on average 1.3489856393891042) internal successors, (11836), 8990 states have internal predecessors, (11836), 3779 states have call successors, (3779), 1122 states have call predecessors, (3779), 1117 states have return successors, (3999), 3634 states have call predecessors, (3999), 3777 states have call successors, (3999) [2022-12-14 07:09:32,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13671 states to 13671 states and 19614 transitions. [2022-12-14 07:09:33,001 INFO L78 Accepts]: Start accepts. Automaton has 13671 states and 19614 transitions. Word has length 253 [2022-12-14 07:09:33,001 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:09:33,001 INFO L495 AbstractCegarLoop]: Abstraction has 13671 states and 19614 transitions. [2022-12-14 07:09:33,002 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 2 states have call successors, (36), 2 states have call predecessors, (36), 1 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) [2022-12-14 07:09:33,002 INFO L276 IsEmpty]: Start isEmpty. Operand 13671 states and 19614 transitions. [2022-12-14 07:09:33,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 256 [2022-12-14 07:09:33,009 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:09:33,009 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 07:09:33,009 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-14 07:09:33,009 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 07:09:33,009 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:09:33,009 INFO L85 PathProgramCache]: Analyzing trace with hash -678135005, now seen corresponding path program 1 times [2022-12-14 07:09:33,010 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 07:09:33,010 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [786142965] [2022-12-14 07:09:33,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:09:33,010 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 07:09:33,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:09:33,585 INFO L134 CoverageAnalysis]: Checked inductivity of 750 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 750 trivial. 0 not checked. [2022-12-14 07:09:33,585 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 07:09:33,585 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [786142965] [2022-12-14 07:09:33,585 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [786142965] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 07:09:33,585 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 07:09:33,585 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 07:09:33,586 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1859781032] [2022-12-14 07:09:33,586 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 07:09:33,586 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 07:09:33,586 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 07:09:33,587 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 07:09:33,587 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 07:09:33,587 INFO L87 Difference]: Start difference. First operand 13671 states and 19614 transitions. Second operand has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 2 states have call successors, (37), 2 states have call predecessors, (37), 1 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2022-12-14 07:09:35,692 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:09:37,748 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:09:42,350 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.62s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:09:44,133 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:09:44,134 INFO L93 Difference]: Finished difference Result 39199 states and 56761 transitions. [2022-12-14 07:09:44,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 07:09:44,134 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 2 states have call successors, (37), 2 states have call predecessors, (37), 1 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) Word has length 255 [2022-12-14 07:09:44,135 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:09:44,228 INFO L225 Difference]: With dead ends: 39199 [2022-12-14 07:09:44,228 INFO L226 Difference]: Without dead ends: 25588 [2022-12-14 07:09:44,265 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 07:09:44,266 INFO L413 NwaCegarLoop]: 3608 mSDtfsCounter, 2324 mSDsluCounter, 2263 mSDsCounter, 0 mSdLazyCounter, 802 mSolverCounterSat, 2 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2324 SdHoareTripleChecker+Valid, 5871 SdHoareTripleChecker+Invalid, 806 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 802 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.0s IncrementalHoareTripleChecker+Time [2022-12-14 07:09:44,266 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2324 Valid, 5871 Invalid, 806 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 802 Invalid, 2 Unknown, 0 Unchecked, 10.0s Time] [2022-12-14 07:09:44,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25588 states. [2022-12-14 07:09:45,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25588 to 25527. [2022-12-14 07:09:45,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25527 states, 16376 states have (on average 1.3467269174401564) internal successors, (22054), 16763 states have internal predecessors, (22054), 7020 states have call successors, (7020), 2134 states have call predecessors, (7020), 2130 states have return successors, (8085), 6760 states have call predecessors, (8085), 7018 states have call successors, (8085) [2022-12-14 07:09:45,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25527 states to 25527 states and 37159 transitions. [2022-12-14 07:09:45,179 INFO L78 Accepts]: Start accepts. Automaton has 25527 states and 37159 transitions. Word has length 255 [2022-12-14 07:09:45,179 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:09:45,179 INFO L495 AbstractCegarLoop]: Abstraction has 25527 states and 37159 transitions. [2022-12-14 07:09:45,179 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 2 states have call successors, (37), 2 states have call predecessors, (37), 1 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2022-12-14 07:09:45,179 INFO L276 IsEmpty]: Start isEmpty. Operand 25527 states and 37159 transitions. [2022-12-14 07:09:45,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 298 [2022-12-14 07:09:45,249 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:09:45,250 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 07:09:45,250 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-14 07:09:45,250 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 07:09:45,250 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:09:45,250 INFO L85 PathProgramCache]: Analyzing trace with hash -2042723002, now seen corresponding path program 1 times [2022-12-14 07:09:45,251 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 07:09:45,251 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [577135269] [2022-12-14 07:09:45,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:09:45,251 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 07:09:45,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:09:45,800 INFO L134 CoverageAnalysis]: Checked inductivity of 758 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 754 trivial. 0 not checked. [2022-12-14 07:09:45,801 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 07:09:45,801 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [577135269] [2022-12-14 07:09:45,801 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [577135269] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 07:09:45,801 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 07:09:45,801 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 07:09:45,801 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [188648259] [2022-12-14 07:09:45,801 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 07:09:45,802 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 07:09:45,802 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 07:09:45,803 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 07:09:45,803 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 07:09:45,803 INFO L87 Difference]: Start difference. First operand 25527 states and 37159 transitions. Second operand has 3 states, 3 states have (on average 34.0) internal successors, (102), 3 states have internal predecessors, (102), 2 states have call successors, (42), 2 states have call predecessors, (42), 1 states have return successors, (37), 2 states have call predecessors, (37), 2 states have call successors, (37) [2022-12-14 07:09:47,242 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.44s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:09:49,321 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 [] [2022-12-14 07:09:52,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:09:52,088 INFO L93 Difference]: Finished difference Result 51157 states and 74389 transitions. [2022-12-14 07:09:52,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 07:09:52,089 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.0) internal successors, (102), 3 states have internal predecessors, (102), 2 states have call successors, (42), 2 states have call predecessors, (42), 1 states have return successors, (37), 2 states have call predecessors, (37), 2 states have call successors, (37) Word has length 297 [2022-12-14 07:09:52,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:09:52,177 INFO L225 Difference]: With dead ends: 51157 [2022-12-14 07:09:52,178 INFO L226 Difference]: Without dead ends: 25690 [2022-12-14 07:09:52,261 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 07:09:52,261 INFO L413 NwaCegarLoop]: 2292 mSDtfsCounter, 2411 mSDsluCounter, 177 mSDsCounter, 0 mSdLazyCounter, 376 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2411 SdHoareTripleChecker+Valid, 2469 SdHoareTripleChecker+Invalid, 378 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 376 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2022-12-14 07:09:52,262 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2411 Valid, 2469 Invalid, 378 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 376 Invalid, 1 Unknown, 0 Unchecked, 5.5s Time] [2022-12-14 07:09:52,276 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25690 states. [2022-12-14 07:09:53,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25690 to 25659. [2022-12-14 07:09:53,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25659 states, 16441 states have (on average 1.3443829450763336) internal successors, (22103), 16827 states have internal predecessors, (22103), 7047 states have call successors, (7047), 2174 states have call predecessors, (7047), 2170 states have return successors, (8112), 6787 states have call predecessors, (8112), 7045 states have call successors, (8112) [2022-12-14 07:09:53,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25659 states to 25659 states and 37262 transitions. [2022-12-14 07:09:53,115 INFO L78 Accepts]: Start accepts. Automaton has 25659 states and 37262 transitions. Word has length 297 [2022-12-14 07:09:53,116 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:09:53,116 INFO L495 AbstractCegarLoop]: Abstraction has 25659 states and 37262 transitions. [2022-12-14 07:09:53,116 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.0) internal successors, (102), 3 states have internal predecessors, (102), 2 states have call successors, (42), 2 states have call predecessors, (42), 1 states have return successors, (37), 2 states have call predecessors, (37), 2 states have call successors, (37) [2022-12-14 07:09:53,116 INFO L276 IsEmpty]: Start isEmpty. Operand 25659 states and 37262 transitions. [2022-12-14 07:09:53,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 332 [2022-12-14 07:09:53,132 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:09:53,132 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 12, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 07:09:53,132 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-14 07:09:53,132 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 07:09:53,132 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:09:53,132 INFO L85 PathProgramCache]: Analyzing trace with hash 257797248, now seen corresponding path program 1 times [2022-12-14 07:09:53,133 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 07:09:53,133 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1454532991] [2022-12-14 07:09:53,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:09:53,133 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 07:09:53,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:09:53,656 INFO L134 CoverageAnalysis]: Checked inductivity of 994 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 990 trivial. 0 not checked. [2022-12-14 07:09:53,656 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 07:09:53,656 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1454532991] [2022-12-14 07:09:53,657 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1454532991] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 07:09:53,657 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 07:09:53,657 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 07:09:53,657 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1002305677] [2022-12-14 07:09:53,657 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 07:09:53,658 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 07:09:53,658 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 07:09:53,658 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 07:09:53,659 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 07:09:53,659 INFO L87 Difference]: Start difference. First operand 25659 states and 37262 transitions. Second operand has 3 states, 3 states have (on average 35.0) internal successors, (105), 3 states have internal predecessors, (105), 2 states have call successors, (46), 2 states have call predecessors, (46), 1 states have return successors, (41), 2 states have call predecessors, (41), 2 states have call successors, (41) [2022-12-14 07:09:55,730 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:09:57,788 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:10:00,448 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.16s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:10:02,623 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.47s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:10:06,878 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:10:06,878 INFO L93 Difference]: Finished difference Result 75849 states and 110124 transitions. [2022-12-14 07:10:06,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 07:10:06,879 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.0) internal successors, (105), 3 states have internal predecessors, (105), 2 states have call successors, (46), 2 states have call predecessors, (46), 1 states have return successors, (41), 2 states have call predecessors, (41), 2 states have call successors, (41) Word has length 331 [2022-12-14 07:10:06,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:10:07,064 INFO L225 Difference]: With dead ends: 75849 [2022-12-14 07:10:07,064 INFO L226 Difference]: Without dead ends: 50250 [2022-12-14 07:10:07,135 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 07:10:07,136 INFO L413 NwaCegarLoop]: 3954 mSDtfsCounter, 2284 mSDsluCounter, 2241 mSDsCounter, 0 mSdLazyCounter, 851 mSolverCounterSat, 1 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2284 SdHoareTripleChecker+Valid, 6195 SdHoareTripleChecker+Invalid, 854 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 851 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.7s IncrementalHoareTripleChecker+Time [2022-12-14 07:10:07,136 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2284 Valid, 6195 Invalid, 854 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 851 Invalid, 2 Unknown, 0 Unchecked, 11.7s Time] [2022-12-14 07:10:07,169 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50250 states. [2022-12-14 07:10:08,833 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50250 to 49995. [2022-12-14 07:10:08,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49995 states, 32019 states have (on average 1.345451138386583) internal successors, (43080), 32793 states have internal predecessors, (43080), 13723 states have call successors, (13723), 4259 states have call predecessors, (13723), 4252 states have return successors, (15815), 13197 states have call predecessors, (15815), 13721 states have call successors, (15815) [2022-12-14 07:10:09,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49995 states to 49995 states and 72618 transitions. [2022-12-14 07:10:09,048 INFO L78 Accepts]: Start accepts. Automaton has 49995 states and 72618 transitions. Word has length 331 [2022-12-14 07:10:09,048 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:10:09,048 INFO L495 AbstractCegarLoop]: Abstraction has 49995 states and 72618 transitions. [2022-12-14 07:10:09,048 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.0) internal successors, (105), 3 states have internal predecessors, (105), 2 states have call successors, (46), 2 states have call predecessors, (46), 1 states have return successors, (41), 2 states have call predecessors, (41), 2 states have call successors, (41) [2022-12-14 07:10:09,049 INFO L276 IsEmpty]: Start isEmpty. Operand 49995 states and 72618 transitions. [2022-12-14 07:10:09,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 364 [2022-12-14 07:10:09,136 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:10:09,136 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 17, 17, 17, 17, 17, 17, 12, 12, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 07:10:09,136 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-14 07:10:09,136 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 07:10:09,137 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:10:09,137 INFO L85 PathProgramCache]: Analyzing trace with hash -2071961778, now seen corresponding path program 1 times [2022-12-14 07:10:09,137 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 07:10:09,137 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [666319720] [2022-12-14 07:10:09,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:10:09,138 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 07:10:09,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:10:09,756 INFO L134 CoverageAnalysis]: Checked inductivity of 1570 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1568 trivial. 0 not checked. [2022-12-14 07:10:09,757 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 07:10:09,757 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [666319720] [2022-12-14 07:10:09,757 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [666319720] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 07:10:09,757 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 07:10:09,757 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 07:10:09,757 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1585018718] [2022-12-14 07:10:09,757 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 07:10:09,757 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 07:10:09,758 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 07:10:09,758 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 07:10:09,758 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 07:10:09,758 INFO L87 Difference]: Start difference. First operand 49995 states and 72618 transitions. Second operand has 4 states, 4 states have (on average 25.75) internal successors, (103), 4 states have internal predecessors, (103), 2 states have call successors, (46), 2 states have call predecessors, (46), 1 states have return successors, (43), 2 states have call predecessors, (43), 2 states have call successors, (43) [2022-12-14 07:10:11,843 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:10:13,939 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:10:16,164 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.36s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:10:19,447 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:10:21,458 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:10:25,724 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:10:25,724 INFO L93 Difference]: Finished difference Result 99975 states and 145206 transitions. [2022-12-14 07:10:25,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 07:10:25,729 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 25.75) internal successors, (103), 4 states have internal predecessors, (103), 2 states have call successors, (46), 2 states have call predecessors, (46), 1 states have return successors, (43), 2 states have call predecessors, (43), 2 states have call successors, (43) Word has length 363 [2022-12-14 07:10:25,729 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:10:25,902 INFO L225 Difference]: With dead ends: 99975 [2022-12-14 07:10:25,902 INFO L226 Difference]: Without dead ends: 50016 [2022-12-14 07:10:26,034 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 07:10:26,034 INFO L413 NwaCegarLoop]: 2254 mSDtfsCounter, 8 mSDsluCounter, 4502 mSDsCounter, 0 mSdLazyCounter, 935 mSolverCounterSat, 1 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 6756 SdHoareTripleChecker+Invalid, 940 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 935 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.5s IncrementalHoareTripleChecker+Time [2022-12-14 07:10:26,035 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 6756 Invalid, 940 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 935 Invalid, 4 Unknown, 0 Unchecked, 14.5s Time] [2022-12-14 07:10:26,067 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50016 states. [2022-12-14 07:10:27,750 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50016 to 49997. [2022-12-14 07:10:27,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49997 states, 32021 states have (on average 1.3450548077823927) internal successors, (43070), 32795 states have internal predecessors, (43070), 13723 states have call successors, (13723), 4259 states have call predecessors, (13723), 4252 states have return successors, (15815), 13197 states have call predecessors, (15815), 13721 states have call successors, (15815) [2022-12-14 07:10:28,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49997 states to 49997 states and 72608 transitions. [2022-12-14 07:10:28,024 INFO L78 Accepts]: Start accepts. Automaton has 49997 states and 72608 transitions. Word has length 363 [2022-12-14 07:10:28,024 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:10:28,024 INFO L495 AbstractCegarLoop]: Abstraction has 49997 states and 72608 transitions. [2022-12-14 07:10:28,024 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.75) internal successors, (103), 4 states have internal predecessors, (103), 2 states have call successors, (46), 2 states have call predecessors, (46), 1 states have return successors, (43), 2 states have call predecessors, (43), 2 states have call successors, (43) [2022-12-14 07:10:28,024 INFO L276 IsEmpty]: Start isEmpty. Operand 49997 states and 72608 transitions. [2022-12-14 07:10:28,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 369 [2022-12-14 07:10:28,072 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:10:28,072 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 17, 17, 17, 17, 17, 17, 12, 12, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 07:10:28,072 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-12-14 07:10:28,072 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 07:10:28,072 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:10:28,072 INFO L85 PathProgramCache]: Analyzing trace with hash -1542428782, now seen corresponding path program 1 times [2022-12-14 07:10:28,072 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 07:10:28,072 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [613380023] [2022-12-14 07:10:28,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:10:28,073 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 07:10:28,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:10:28,574 INFO L134 CoverageAnalysis]: Checked inductivity of 1580 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1580 trivial. 0 not checked. [2022-12-14 07:10:28,574 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 07:10:28,574 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [613380023] [2022-12-14 07:10:28,574 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [613380023] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 07:10:28,574 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 07:10:28,574 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 07:10:28,574 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1019703937] [2022-12-14 07:10:28,575 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 07:10:28,575 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 07:10:28,575 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 07:10:28,576 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 07:10:28,576 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 07:10:28,576 INFO L87 Difference]: Start difference. First operand 49997 states and 72608 transitions. Second operand has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 3 states have call successors, (46), 2 states have call predecessors, (46), 1 states have return successors, (43), 3 states have call predecessors, (43), 3 states have call successors, (43) [2022-12-14 07:10:30,644 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:10:32,705 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:10:34,891 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.35s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:10:40,848 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:10:40,848 INFO L93 Difference]: Finished difference Result 111041 states and 161693 transitions. [2022-12-14 07:10:40,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 07:10:40,849 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 3 states have call successors, (46), 2 states have call predecessors, (46), 1 states have return successors, (43), 3 states have call predecessors, (43), 3 states have call successors, (43) Word has length 368 [2022-12-14 07:10:40,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:10:41,130 INFO L225 Difference]: With dead ends: 111041 [2022-12-14 07:10:41,131 INFO L226 Difference]: Without dead ends: 69414 [2022-12-14 07:10:41,334 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 07:10:41,334 INFO L413 NwaCegarLoop]: 2916 mSDtfsCounter, 2303 mSDsluCounter, 2222 mSDsCounter, 0 mSdLazyCounter, 683 mSolverCounterSat, 6 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2303 SdHoareTripleChecker+Valid, 5138 SdHoareTripleChecker+Invalid, 691 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 683 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.4s IncrementalHoareTripleChecker+Time [2022-12-14 07:10:41,335 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2303 Valid, 5138 Invalid, 691 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 683 Invalid, 2 Unknown, 0 Unchecked, 10.4s Time] [2022-12-14 07:10:41,379 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69414 states. [2022-12-14 07:10:43,495 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69414 to 69281. [2022-12-14 07:10:43,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69281 states, 44385 states have (on average 1.3452743043821112) internal successors, (59710), 45437 states have internal predecessors, (59710), 19021 states have call successors, (19021), 5887 states have call predecessors, (19021), 5874 states have return successors, (22235), 18305 states have call predecessors, (22235), 19019 states have call successors, (22235) [2022-12-14 07:10:43,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69281 states to 69281 states and 100966 transitions. [2022-12-14 07:10:43,945 INFO L78 Accepts]: Start accepts. Automaton has 69281 states and 100966 transitions. Word has length 368 [2022-12-14 07:10:43,945 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:10:43,945 INFO L495 AbstractCegarLoop]: Abstraction has 69281 states and 100966 transitions. [2022-12-14 07:10:43,945 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 3 states have call successors, (46), 2 states have call predecessors, (46), 1 states have return successors, (43), 3 states have call predecessors, (43), 3 states have call successors, (43) [2022-12-14 07:10:43,945 INFO L276 IsEmpty]: Start isEmpty. Operand 69281 states and 100966 transitions. [2022-12-14 07:10:44,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 370 [2022-12-14 07:10:44,015 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:10:44,015 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 17, 17, 17, 17, 17, 17, 12, 12, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 07:10:44,016 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-12-14 07:10:44,016 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 07:10:44,016 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:10:44,016 INFO L85 PathProgramCache]: Analyzing trace with hash -1861234802, now seen corresponding path program 1 times [2022-12-14 07:10:44,016 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 07:10:44,016 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [945148126] [2022-12-14 07:10:44,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:10:44,017 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 07:10:44,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:10:44,475 INFO L134 CoverageAnalysis]: Checked inductivity of 1570 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1568 trivial. 0 not checked. [2022-12-14 07:10:44,475 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 07:10:44,475 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [945148126] [2022-12-14 07:10:44,475 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [945148126] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 07:10:44,475 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 07:10:44,475 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 07:10:44,475 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1006871205] [2022-12-14 07:10:44,475 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 07:10:44,476 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 07:10:44,476 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 07:10:44,476 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 07:10:44,476 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 07:10:44,476 INFO L87 Difference]: Start difference. First operand 69281 states and 100966 transitions. Second operand has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 3 states have call successors, (47), 2 states have call predecessors, (47), 1 states have return successors, (44), 3 states have call predecessors, (44), 3 states have call successors, (44) [2022-12-14 07:10:46,535 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:10:48,604 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 [] [2022-12-14 07:10:56,957 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:10:56,957 INFO L93 Difference]: Finished difference Result 175809 states and 256304 transitions. [2022-12-14 07:10:56,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 07:10:56,958 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 3 states have call successors, (47), 2 states have call predecessors, (47), 1 states have return successors, (44), 3 states have call predecessors, (44), 3 states have call successors, (44) Word has length 369 [2022-12-14 07:10:56,958 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:10:57,505 INFO L225 Difference]: With dead ends: 175809 [2022-12-14 07:10:57,505 INFO L226 Difference]: Without dead ends: 106588 [2022-12-14 07:10:57,757 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 07:10:57,758 INFO L413 NwaCegarLoop]: 3024 mSDtfsCounter, 2231 mSDsluCounter, 2127 mSDsCounter, 0 mSdLazyCounter, 792 mSolverCounterSat, 61 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2231 SdHoareTripleChecker+Valid, 5151 SdHoareTripleChecker+Invalid, 855 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 792 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.3s IncrementalHoareTripleChecker+Time [2022-12-14 07:10:57,758 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2231 Valid, 5151 Invalid, 855 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 792 Invalid, 2 Unknown, 0 Unchecked, 9.3s Time] [2022-12-14 07:10:57,826 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106588 states. [2022-12-14 07:11:00,941 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106588 to 106561. [2022-12-14 07:11:01,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 106561 states, 68643 states have (on average 1.3402094896784815) internal successors, (91996), 70283 states have internal predecessors, (91996), 28903 states have call successors, (28903), 9043 states have call predecessors, (28903), 9014 states have return successors, (33599), 27779 states have call predecessors, (33599), 28901 states have call successors, (33599) [2022-12-14 07:11:01,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106561 states to 106561 states and 154498 transitions. [2022-12-14 07:11:01,613 INFO L78 Accepts]: Start accepts. Automaton has 106561 states and 154498 transitions. Word has length 369 [2022-12-14 07:11:01,613 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:11:01,613 INFO L495 AbstractCegarLoop]: Abstraction has 106561 states and 154498 transitions. [2022-12-14 07:11:01,614 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 3 states have call successors, (47), 2 states have call predecessors, (47), 1 states have return successors, (44), 3 states have call predecessors, (44), 3 states have call successors, (44) [2022-12-14 07:11:01,614 INFO L276 IsEmpty]: Start isEmpty. Operand 106561 states and 154498 transitions. [2022-12-14 07:11:01,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 380 [2022-12-14 07:11:01,669 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:11:01,669 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 17, 17, 17, 17, 17, 17, 12, 12, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 07:11:01,669 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-12-14 07:11:01,669 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 07:11:01,670 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:11:01,670 INFO L85 PathProgramCache]: Analyzing trace with hash -2012220906, now seen corresponding path program 1 times [2022-12-14 07:11:01,670 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 07:11:01,670 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1648481211] [2022-12-14 07:11:01,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:11:01,670 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 07:11:02,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:11:04,109 INFO L134 CoverageAnalysis]: Checked inductivity of 1576 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 1572 trivial. 0 not checked. [2022-12-14 07:11:04,109 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 07:11:04,109 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1648481211] [2022-12-14 07:11:04,109 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1648481211] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 07:11:04,109 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019065649] [2022-12-14 07:11:04,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:11:04,110 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 07:11:04,110 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c8d8920-80db-4c92-bf8e-04ce55ddabb3/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 07:11:04,111 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c8d8920-80db-4c92-bf8e-04ce55ddabb3/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 07:11:04,112 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c8d8920-80db-4c92-bf8e-04ce55ddabb3/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-14 07:11:05,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:11:05,501 INFO L263 TraceCheckSpWp]: Trace formula consists of 7853 conjuncts, 9 conjunts are in the unsatisfiable core [2022-12-14 07:11:05,522 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 07:11:05,615 INFO L134 CoverageAnalysis]: Checked inductivity of 1576 backedges. 666 proven. 0 refuted. 0 times theorem prover too weak. 910 trivial. 0 not checked. [2022-12-14 07:11:05,615 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 07:11:05,615 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2019065649] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 07:11:05,616 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-14 07:11:05,616 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [6] total 9 [2022-12-14 07:11:05,616 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [924205902] [2022-12-14 07:11:05,616 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 07:11:05,616 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 07:11:05,617 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 07:11:05,617 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 07:11:05,617 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-12-14 07:11:05,617 INFO L87 Difference]: Start difference. First operand 106561 states and 154498 transitions. Second operand has 5 states, 5 states have (on average 24.0) internal successors, (120), 5 states have internal predecessors, (120), 3 states have call successors, (52), 2 states have call predecessors, (52), 2 states have return successors, (47), 3 states have call predecessors, (47), 3 states have call successors, (47) [2022-12-14 07:11:07,699 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:11:09,785 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:11:12,600 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:11:16,256 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.49s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:11:21,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:11:21,389 INFO L93 Difference]: Finished difference Result 170134 states and 246522 transitions. [2022-12-14 07:11:21,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-14 07:11:21,390 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.0) internal successors, (120), 5 states have internal predecessors, (120), 3 states have call successors, (52), 2 states have call predecessors, (52), 2 states have return successors, (47), 3 states have call predecessors, (47), 3 states have call successors, (47) Word has length 379 [2022-12-14 07:11:21,391 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:11:21,668 INFO L225 Difference]: With dead ends: 170134 [2022-12-14 07:11:21,668 INFO L226 Difference]: Without dead ends: 63513 [2022-12-14 07:11:22,025 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 388 GetRequests, 378 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2022-12-14 07:11:22,026 INFO L413 NwaCegarLoop]: 2259 mSDtfsCounter, 19 mSDsluCounter, 6750 mSDsCounter, 0 mSdLazyCounter, 1247 mSolverCounterSat, 6 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 9009 SdHoareTripleChecker+Invalid, 1256 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 1247 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.5s IncrementalHoareTripleChecker+Time [2022-12-14 07:11:22,026 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 9009 Invalid, 1256 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 1247 Invalid, 3 Unknown, 0 Unchecked, 13.5s Time] [2022-12-14 07:11:22,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63513 states. [2022-12-14 07:11:23,708 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63513 to 63313. [2022-12-14 07:11:23,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63313 states, 40776 states have (on average 1.341867765352168) internal successors, (54716), 41768 states have internal predecessors, (54716), 17187 states have call successors, (17187), 5364 states have call predecessors, (17187), 5349 states have return successors, (19827), 16503 states have call predecessors, (19827), 17185 states have call successors, (19827) [2022-12-14 07:11:24,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63313 states to 63313 states and 91730 transitions. [2022-12-14 07:11:24,010 INFO L78 Accepts]: Start accepts. Automaton has 63313 states and 91730 transitions. Word has length 379 [2022-12-14 07:11:24,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:11:24,010 INFO L495 AbstractCegarLoop]: Abstraction has 63313 states and 91730 transitions. [2022-12-14 07:11:24,010 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.0) internal successors, (120), 5 states have internal predecessors, (120), 3 states have call successors, (52), 2 states have call predecessors, (52), 2 states have return successors, (47), 3 states have call predecessors, (47), 3 states have call successors, (47) [2022-12-14 07:11:24,011 INFO L276 IsEmpty]: Start isEmpty. Operand 63313 states and 91730 transitions. [2022-12-14 07:11:24,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 399 [2022-12-14 07:11:24,043 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:11:24,043 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 18, 18, 18, 18, 18, 18, 12, 12, 4, 4, 4, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 07:11:24,063 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c8d8920-80db-4c92-bf8e-04ce55ddabb3/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-14 07:11:24,244 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c8d8920-80db-4c92-bf8e-04ce55ddabb3/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 07:11:24,245 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 07:11:24,245 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:11:24,245 INFO L85 PathProgramCache]: Analyzing trace with hash -912774452, now seen corresponding path program 1 times [2022-12-14 07:11:24,245 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 07:11:24,245 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1808563117] [2022-12-14 07:11:24,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:11:24,246 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 07:11:24,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:11:25,220 INFO L134 CoverageAnalysis]: Checked inductivity of 1770 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 1760 trivial. 0 not checked. [2022-12-14 07:11:25,220 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 07:11:25,221 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1808563117] [2022-12-14 07:11:25,221 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1808563117] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 07:11:25,221 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 07:11:25,221 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 07:11:25,221 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [646265730] [2022-12-14 07:11:25,221 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 07:11:25,222 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 07:11:25,222 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 07:11:25,222 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 07:11:25,222 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 07:11:25,223 INFO L87 Difference]: Start difference. First operand 63313 states and 91730 transitions. Second operand has 4 states, 4 states have (on average 28.25) internal successors, (113), 4 states have internal predecessors, (113), 2 states have call successors, (48), 2 states have call predecessors, (48), 1 states have return successors, (45), 2 states have call predecessors, (45), 2 states have call successors, (45) [2022-12-14 07:11:27,291 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:11:29,370 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:11:31,687 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.67s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:11:38,305 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:11:38,305 INFO L93 Difference]: Finished difference Result 126250 states and 182949 transitions. [2022-12-14 07:11:38,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 07:11:38,306 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 28.25) internal successors, (113), 4 states have internal predecessors, (113), 2 states have call successors, (48), 2 states have call predecessors, (48), 1 states have return successors, (45), 2 states have call predecessors, (45), 2 states have call successors, (45) Word has length 398 [2022-12-14 07:11:38,306 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:11:38,537 INFO L225 Difference]: With dead ends: 126250 [2022-12-14 07:11:38,537 INFO L226 Difference]: Without dead ends: 63328 [2022-12-14 07:11:38,703 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 07:11:38,704 INFO L413 NwaCegarLoop]: 2269 mSDtfsCounter, 19 mSDsluCounter, 4507 mSDsCounter, 0 mSdLazyCounter, 938 mSolverCounterSat, 8 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 6776 SdHoareTripleChecker+Invalid, 948 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 938 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.3s IncrementalHoareTripleChecker+Time [2022-12-14 07:11:38,704 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 6776 Invalid, 948 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 938 Invalid, 2 Unknown, 0 Unchecked, 11.3s Time] [2022-12-14 07:11:38,743 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63328 states. [2022-12-14 07:11:40,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63328 to 63315. [2022-12-14 07:11:40,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63315 states, 40778 states have (on average 1.3418264750600815) internal successors, (54717), 41770 states have internal predecessors, (54717), 17187 states have call successors, (17187), 5364 states have call predecessors, (17187), 5349 states have return successors, (19827), 16503 states have call predecessors, (19827), 17185 states have call successors, (19827) [2022-12-14 07:11:40,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63315 states to 63315 states and 91731 transitions. [2022-12-14 07:11:40,713 INFO L78 Accepts]: Start accepts. Automaton has 63315 states and 91731 transitions. Word has length 398 [2022-12-14 07:11:40,713 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:11:40,713 INFO L495 AbstractCegarLoop]: Abstraction has 63315 states and 91731 transitions. [2022-12-14 07:11:40,713 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 28.25) internal successors, (113), 4 states have internal predecessors, (113), 2 states have call successors, (48), 2 states have call predecessors, (48), 1 states have return successors, (45), 2 states have call predecessors, (45), 2 states have call successors, (45) [2022-12-14 07:11:40,714 INFO L276 IsEmpty]: Start isEmpty. Operand 63315 states and 91731 transitions. [2022-12-14 07:11:40,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 430 [2022-12-14 07:11:40,746 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:11:40,746 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 19, 19, 19, 19, 19, 19, 12, 12, 4, 4, 4, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 07:11:40,747 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-12-14 07:11:40,747 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 07:11:40,747 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:11:40,747 INFO L85 PathProgramCache]: Analyzing trace with hash 207876503, now seen corresponding path program 1 times [2022-12-14 07:11:40,747 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 07:11:40,747 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1110319854] [2022-12-14 07:11:40,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:11:40,747 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 07:11:41,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:11:41,463 INFO L134 CoverageAnalysis]: Checked inductivity of 1952 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1952 trivial. 0 not checked. [2022-12-14 07:11:41,463 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 07:11:41,463 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1110319854] [2022-12-14 07:11:41,463 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1110319854] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 07:11:41,463 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 07:11:41,463 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 07:11:41,463 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [365148752] [2022-12-14 07:11:41,463 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 07:11:41,464 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 07:11:41,464 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 07:11:41,465 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 07:11:41,465 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 07:11:41,465 INFO L87 Difference]: Start difference. First operand 63315 states and 91731 transitions. Second operand has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 3 states have internal predecessors, (118), 3 states have call successors, (53), 2 states have call predecessors, (53), 1 states have return successors, (48), 3 states have call predecessors, (48), 3 states have call successors, (48) [2022-12-14 07:11:43,526 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:11:45,582 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:11:51,469 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.51s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:11:54,390 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:11:54,390 INFO L93 Difference]: Finished difference Result 156689 states and 227445 transitions. [2022-12-14 07:11:54,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 07:11:54,391 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 3 states have internal predecessors, (118), 3 states have call successors, (53), 2 states have call predecessors, (53), 1 states have return successors, (48), 3 states have call predecessors, (48), 3 states have call successors, (48) Word has length 429 [2022-12-14 07:11:54,392 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:11:54,802 INFO L225 Difference]: With dead ends: 156689 [2022-12-14 07:11:54,802 INFO L226 Difference]: Without dead ends: 93767 [2022-12-14 07:11:54,987 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 07:11:54,988 INFO L413 NwaCegarLoop]: 2786 mSDtfsCounter, 2421 mSDsluCounter, 2262 mSDsCounter, 0 mSdLazyCounter, 652 mSolverCounterSat, 3 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2421 SdHoareTripleChecker+Valid, 5048 SdHoareTripleChecker+Invalid, 657 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 652 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.3s IncrementalHoareTripleChecker+Time [2022-12-14 07:11:54,988 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2421 Valid, 5048 Invalid, 657 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 652 Invalid, 2 Unknown, 0 Unchecked, 10.3s Time] [2022-12-14 07:11:55,045 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93767 states. [2022-12-14 07:11:57,918 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93767 to 93596. [2022-12-14 07:11:57,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93596 states, 60216 states have (on average 1.3409060714760197) internal successors, (80744), 61710 states have internal predecessors, (80744), 25407 states have call successors, (25407), 7989 states have call predecessors, (25407), 7972 states have return successors, (29901), 24373 states have call predecessors, (29901), 25405 states have call successors, (29901) [2022-12-14 07:11:58,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93596 states to 93596 states and 136052 transitions. [2022-12-14 07:11:58,372 INFO L78 Accepts]: Start accepts. Automaton has 93596 states and 136052 transitions. Word has length 429 [2022-12-14 07:11:58,372 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:11:58,372 INFO L495 AbstractCegarLoop]: Abstraction has 93596 states and 136052 transitions. [2022-12-14 07:11:58,372 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 3 states have internal predecessors, (118), 3 states have call successors, (53), 2 states have call predecessors, (53), 1 states have return successors, (48), 3 states have call predecessors, (48), 3 states have call successors, (48) [2022-12-14 07:11:58,373 INFO L276 IsEmpty]: Start isEmpty. Operand 93596 states and 136052 transitions. [2022-12-14 07:11:58,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 430 [2022-12-14 07:11:58,499 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:11:58,499 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 19, 19, 19, 19, 19, 19, 12, 12, 4, 4, 4, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 07:11:58,499 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-12-14 07:11:58,500 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 07:11:58,500 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:11:58,500 INFO L85 PathProgramCache]: Analyzing trace with hash -813426865, now seen corresponding path program 1 times [2022-12-14 07:11:58,500 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 07:11:58,500 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2076682279] [2022-12-14 07:11:58,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:11:58,500 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 07:11:58,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:12:01,413 INFO L134 CoverageAnalysis]: Checked inductivity of 1948 backedges. 4 proven. 8 refuted. 0 times theorem prover too weak. 1936 trivial. 0 not checked. [2022-12-14 07:12:01,413 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 07:12:01,413 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2076682279] [2022-12-14 07:12:01,413 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2076682279] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 07:12:01,413 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [376536413] [2022-12-14 07:12:01,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:12:01,414 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 07:12:01,414 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c8d8920-80db-4c92-bf8e-04ce55ddabb3/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 07:12:01,414 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c8d8920-80db-4c92-bf8e-04ce55ddabb3/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 07:12:01,415 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c8d8920-80db-4c92-bf8e-04ce55ddabb3/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-14 07:12:03,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:12:03,337 INFO L263 TraceCheckSpWp]: Trace formula consists of 9451 conjuncts, 27 conjunts are in the unsatisfiable core [2022-12-14 07:12:03,349 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 07:12:03,442 INFO L134 CoverageAnalysis]: Checked inductivity of 1948 backedges. 806 proven. 0 refuted. 0 times theorem prover too weak. 1142 trivial. 0 not checked. [2022-12-14 07:12:03,443 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 07:12:03,443 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [376536413] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 07:12:03,443 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-14 07:12:03,443 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [9] total 13 [2022-12-14 07:12:03,443 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [174838458] [2022-12-14 07:12:03,443 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 07:12:03,444 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-14 07:12:03,444 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 07:12:03,444 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-14 07:12:03,445 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=133, Unknown=0, NotChecked=0, Total=156 [2022-12-14 07:12:03,445 INFO L87 Difference]: Start difference. First operand 93596 states and 136052 transitions. Second operand has 6 states, 6 states have (on average 22.333333333333332) internal successors, (134), 6 states have internal predecessors, (134), 2 states have call successors, (57), 2 states have call predecessors, (57), 2 states have return successors, (52), 2 states have call predecessors, (52), 2 states have call successors, (52) [2022-12-14 07:12:05,514 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:12:07,635 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:12:10,701 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:12:20,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:12:20,161 INFO L93 Difference]: Finished difference Result 186842 states and 271622 transitions. [2022-12-14 07:12:20,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-12-14 07:12:20,162 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 22.333333333333332) internal successors, (134), 6 states have internal predecessors, (134), 2 states have call successors, (57), 2 states have call predecessors, (57), 2 states have return successors, (52), 2 states have call predecessors, (52), 2 states have call successors, (52) Word has length 429 [2022-12-14 07:12:20,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:12:20,539 INFO L225 Difference]: With dead ends: 186842 [2022-12-14 07:12:20,540 INFO L226 Difference]: Without dead ends: 93631 [2022-12-14 07:12:20,822 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 444 GetRequests, 427 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=60, Invalid=282, Unknown=0, NotChecked=0, Total=342 [2022-12-14 07:12:20,823 INFO L413 NwaCegarLoop]: 2270 mSDtfsCounter, 35 mSDsluCounter, 9033 mSDsCounter, 0 mSdLazyCounter, 1571 mSolverCounterSat, 17 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 11303 SdHoareTripleChecker+Invalid, 1590 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 1571 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.8s IncrementalHoareTripleChecker+Time [2022-12-14 07:12:20,823 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 11303 Invalid, 1590 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 1571 Invalid, 2 Unknown, 0 Unchecked, 13.8s Time] [2022-12-14 07:12:20,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93631 states. [2022-12-14 07:12:23,411 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93631 to 93600. [2022-12-14 07:12:23,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93600 states, 60220 states have (on average 1.3408834274327466) internal successors, (80748), 61714 states have internal predecessors, (80748), 25407 states have call successors, (25407), 7989 states have call predecessors, (25407), 7972 states have return successors, (29901), 24373 states have call predecessors, (29901), 25405 states have call successors, (29901) [2022-12-14 07:12:23,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93600 states to 93600 states and 136056 transitions. [2022-12-14 07:12:23,961 INFO L78 Accepts]: Start accepts. Automaton has 93600 states and 136056 transitions. Word has length 429 [2022-12-14 07:12:23,962 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:12:23,962 INFO L495 AbstractCegarLoop]: Abstraction has 93600 states and 136056 transitions. [2022-12-14 07:12:23,962 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 22.333333333333332) internal successors, (134), 6 states have internal predecessors, (134), 2 states have call successors, (57), 2 states have call predecessors, (57), 2 states have return successors, (52), 2 states have call predecessors, (52), 2 states have call successors, (52) [2022-12-14 07:12:23,962 INFO L276 IsEmpty]: Start isEmpty. Operand 93600 states and 136056 transitions. [2022-12-14 07:12:23,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 432 [2022-12-14 07:12:23,988 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:12:23,989 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 19, 19, 19, 19, 19, 19, 12, 12, 4, 4, 4, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 07:12:24,009 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c8d8920-80db-4c92-bf8e-04ce55ddabb3/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-12-14 07:12:24,189 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c8d8920-80db-4c92-bf8e-04ce55ddabb3/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2022-12-14 07:12:24,190 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 07:12:24,191 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:12:24,192 INFO L85 PathProgramCache]: Analyzing trace with hash -683728752, now seen corresponding path program 1 times [2022-12-14 07:12:24,192 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 07:12:24,192 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [388541907] [2022-12-14 07:12:24,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:12:24,193 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 07:12:24,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:12:26,513 INFO L134 CoverageAnalysis]: Checked inductivity of 1948 backedges. 4 proven. 8 refuted. 0 times theorem prover too weak. 1936 trivial. 0 not checked. [2022-12-14 07:12:26,513 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 07:12:26,513 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [388541907] [2022-12-14 07:12:26,513 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [388541907] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 07:12:26,513 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [293989124] [2022-12-14 07:12:26,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:12:26,514 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 07:12:26,514 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c8d8920-80db-4c92-bf8e-04ce55ddabb3/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 07:12:26,514 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c8d8920-80db-4c92-bf8e-04ce55ddabb3/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 07:12:26,515 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c8d8920-80db-4c92-bf8e-04ce55ddabb3/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-12-14 07:12:30,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:12:30,215 INFO L263 TraceCheckSpWp]: Trace formula consists of 9486 conjuncts, 13 conjunts are in the unsatisfiable core [2022-12-14 07:12:30,225 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 07:12:30,286 INFO L134 CoverageAnalysis]: Checked inductivity of 1948 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 1928 trivial. 0 not checked. [2022-12-14 07:12:30,286 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 07:12:30,286 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [293989124] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 07:12:30,286 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-14 07:12:30,287 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [9] total 11 [2022-12-14 07:12:30,287 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [695397531] [2022-12-14 07:12:30,287 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 07:12:30,288 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 07:12:30,288 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 07:12:30,289 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 07:12:30,289 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2022-12-14 07:12:30,289 INFO L87 Difference]: Start difference. First operand 93600 states and 136056 transitions. Second operand has 4 states, 4 states have (on average 32.5) internal successors, (130), 4 states have internal predecessors, (130), 2 states have call successors, (55), 2 states have call predecessors, (55), 2 states have return successors, (50), 2 states have call predecessors, (50), 2 states have call successors, (50) [2022-12-14 07:12:32,360 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:12:34,437 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:12:37,425 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.37s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:12:40,649 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:12:44,730 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:12:44,730 INFO L93 Difference]: Finished difference Result 146092 states and 214046 transitions. [2022-12-14 07:12:44,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 07:12:44,731 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 32.5) internal successors, (130), 4 states have internal predecessors, (130), 2 states have call successors, (55), 2 states have call predecessors, (55), 2 states have return successors, (50), 2 states have call predecessors, (50), 2 states have call successors, (50) Word has length 431 [2022-12-14 07:12:44,732 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:12:45,131 INFO L225 Difference]: With dead ends: 146092 [2022-12-14 07:12:45,131 INFO L226 Difference]: Without dead ends: 94112 [2022-12-14 07:12:45,326 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 441 GetRequests, 431 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2022-12-14 07:12:45,326 INFO L413 NwaCegarLoop]: 2258 mSDtfsCounter, 17 mSDsluCounter, 4483 mSDsCounter, 0 mSdLazyCounter, 945 mSolverCounterSat, 5 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 6741 SdHoareTripleChecker+Invalid, 953 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 945 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.9s IncrementalHoareTripleChecker+Time [2022-12-14 07:12:45,326 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 6741 Invalid, 953 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 945 Invalid, 3 Unknown, 0 Unchecked, 11.9s Time] [2022-12-14 07:12:45,391 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94112 states. [2022-12-14 07:12:48,003 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94112 to 93920. [2022-12-14 07:12:48,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93920 states, 60444 states have (on average 1.3396201442657667) internal successors, (80972), 61970 states have internal predecessors, (80972), 25471 states have call successors, (25471), 7989 states have call predecessors, (25471), 8004 states have return successors, (30015), 24437 states have call predecessors, (30015), 25469 states have call successors, (30015) [2022-12-14 07:12:48,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93920 states to 93920 states and 136458 transitions. [2022-12-14 07:12:48,475 INFO L78 Accepts]: Start accepts. Automaton has 93920 states and 136458 transitions. Word has length 431 [2022-12-14 07:12:48,475 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:12:48,476 INFO L495 AbstractCegarLoop]: Abstraction has 93920 states and 136458 transitions. [2022-12-14 07:12:48,476 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 32.5) internal successors, (130), 4 states have internal predecessors, (130), 2 states have call successors, (55), 2 states have call predecessors, (55), 2 states have return successors, (50), 2 states have call predecessors, (50), 2 states have call successors, (50) [2022-12-14 07:12:48,476 INFO L276 IsEmpty]: Start isEmpty. Operand 93920 states and 136458 transitions. [2022-12-14 07:12:48,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 427 [2022-12-14 07:12:48,509 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:12:48,509 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 19, 19, 19, 19, 19, 19, 12, 12, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 07:12:48,536 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c8d8920-80db-4c92-bf8e-04ce55ddabb3/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-12-14 07:12:48,710 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c8d8920-80db-4c92-bf8e-04ce55ddabb3/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2022-12-14 07:12:48,711 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 07:12:48,712 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:12:48,712 INFO L85 PathProgramCache]: Analyzing trace with hash 1437404958, now seen corresponding path program 1 times [2022-12-14 07:12:48,712 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 07:12:48,713 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1732954743] [2022-12-14 07:12:48,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:12:48,714 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 07:12:48,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:12:51,306 INFO L134 CoverageAnalysis]: Checked inductivity of 1956 backedges. 12 proven. 8 refuted. 0 times theorem prover too weak. 1936 trivial. 0 not checked. [2022-12-14 07:12:51,306 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 07:12:51,306 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1732954743] [2022-12-14 07:12:51,306 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1732954743] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 07:12:51,306 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1654998785] [2022-12-14 07:12:51,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:12:51,306 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 07:12:51,307 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c8d8920-80db-4c92-bf8e-04ce55ddabb3/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 07:12:51,307 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c8d8920-80db-4c92-bf8e-04ce55ddabb3/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 07:12:51,308 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c8d8920-80db-4c92-bf8e-04ce55ddabb3/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-12-14 07:12:54,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:12:54,298 INFO L263 TraceCheckSpWp]: Trace formula consists of 9189 conjuncts, 7 conjunts are in the unsatisfiable core [2022-12-14 07:12:54,310 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 07:12:54,369 INFO L134 CoverageAnalysis]: Checked inductivity of 1956 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 1936 trivial. 0 not checked. [2022-12-14 07:12:54,369 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 07:12:54,369 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1654998785] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 07:12:54,369 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-14 07:12:54,369 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2022-12-14 07:12:54,369 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2062298698] [2022-12-14 07:12:54,369 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 07:12:54,370 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 07:12:54,370 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 07:12:54,371 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 07:12:54,371 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-12-14 07:12:54,371 INFO L87 Difference]: Start difference. First operand 93920 states and 136458 transitions. Second operand has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 3 states have internal predecessors, (121), 2 states have call successors, (52), 2 states have call predecessors, (52), 2 states have return successors, (49), 2 states have call predecessors, (49), 2 states have call successors, (49) [2022-12-14 07:12:56,452 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:12:58,508 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:13:05,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:13:05,368 INFO L93 Difference]: Finished difference Result 188279 states and 275409 transitions. [2022-12-14 07:13:05,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 07:13:05,372 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 3 states have internal predecessors, (121), 2 states have call successors, (52), 2 states have call predecessors, (52), 2 states have return successors, (49), 2 states have call predecessors, (49), 2 states have call successors, (49) Word has length 426 [2022-12-14 07:13:05,372 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:13:05,813 INFO L225 Difference]: With dead ends: 188279 [2022-12-14 07:13:05,814 INFO L226 Difference]: Without dead ends: 94752 [2022-12-14 07:13:06,237 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 435 GetRequests, 427 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-12-14 07:13:06,238 INFO L413 NwaCegarLoop]: 2257 mSDtfsCounter, 8 mSDsluCounter, 2251 mSDsCounter, 0 mSdLazyCounter, 622 mSolverCounterSat, 0 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 4508 SdHoareTripleChecker+Invalid, 624 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 622 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.1s IncrementalHoareTripleChecker+Time [2022-12-14 07:13:06,238 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 4508 Invalid, 624 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 622 Invalid, 2 Unknown, 0 Unchecked, 8.1s Time] [2022-12-14 07:13:06,292 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94752 states. [2022-12-14 07:13:08,873 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94752 to 94112. [2022-12-14 07:13:08,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94112 states, 60636 states have (on average 1.3406557160762582) internal successors, (81292), 62162 states have internal predecessors, (81292), 25471 states have call successors, (25471), 7989 states have call predecessors, (25471), 8004 states have return successors, (30015), 24437 states have call predecessors, (30015), 25469 states have call successors, (30015) [2022-12-14 07:13:09,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94112 states to 94112 states and 136778 transitions. [2022-12-14 07:13:09,334 INFO L78 Accepts]: Start accepts. Automaton has 94112 states and 136778 transitions. Word has length 426 [2022-12-14 07:13:09,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:13:09,335 INFO L495 AbstractCegarLoop]: Abstraction has 94112 states and 136778 transitions. [2022-12-14 07:13:09,335 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 3 states have internal predecessors, (121), 2 states have call successors, (52), 2 states have call predecessors, (52), 2 states have return successors, (49), 2 states have call predecessors, (49), 2 states have call successors, (49) [2022-12-14 07:13:09,335 INFO L276 IsEmpty]: Start isEmpty. Operand 94112 states and 136778 transitions. [2022-12-14 07:13:09,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 429 [2022-12-14 07:13:09,367 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:13:09,367 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 19, 19, 19, 19, 19, 19, 12, 12, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 07:13:09,391 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c8d8920-80db-4c92-bf8e-04ce55ddabb3/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-12-14 07:13:09,568 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c8d8920-80db-4c92-bf8e-04ce55ddabb3/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2022-12-14 07:13:09,569 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 07:13:09,570 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:13:09,571 INFO L85 PathProgramCache]: Analyzing trace with hash 1587546251, now seen corresponding path program 1 times [2022-12-14 07:13:09,571 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 07:13:09,572 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1817782081] [2022-12-14 07:13:09,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:13:09,573 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 07:13:09,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:13:11,741 INFO L134 CoverageAnalysis]: Checked inductivity of 1934 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 1928 trivial. 0 not checked. [2022-12-14 07:13:11,742 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 07:13:11,742 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1817782081] [2022-12-14 07:13:11,742 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1817782081] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 07:13:11,742 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1442531391] [2022-12-14 07:13:11,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:13:11,742 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 07:13:11,743 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c8d8920-80db-4c92-bf8e-04ce55ddabb3/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 07:13:11,743 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c8d8920-80db-4c92-bf8e-04ce55ddabb3/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 07:13:11,744 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c8d8920-80db-4c92-bf8e-04ce55ddabb3/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-12-14 07:13:15,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:13:15,048 INFO L263 TraceCheckSpWp]: Trace formula consists of 8844 conjuncts, 47 conjunts are in the unsatisfiable core [2022-12-14 07:13:15,056 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 07:13:15,112 INFO L134 CoverageAnalysis]: Checked inductivity of 1934 backedges. 858 proven. 0 refuted. 0 times theorem prover too weak. 1076 trivial. 0 not checked. [2022-12-14 07:13:15,112 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 07:13:15,113 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1442531391] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 07:13:15,113 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-14 07:13:15,113 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [9] total 9 [2022-12-14 07:13:15,113 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [308432631] [2022-12-14 07:13:15,113 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 07:13:15,114 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-14 07:13:15,114 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 07:13:15,114 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-14 07:13:15,115 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-12-14 07:13:15,115 INFO L87 Difference]: Start difference. First operand 94112 states and 136778 transitions. Second operand has 9 states, 7 states have (on average 19.857142857142858) internal successors, (139), 6 states have internal predecessors, (139), 2 states have call successors, (57), 2 states have call predecessors, (57), 5 states have return successors, (54), 5 states have call predecessors, (54), 2 states have call successors, (54) [2022-12-14 07:13:17,185 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:13:19,309 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:13:23,076 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.20s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:13:25,014 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.68s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:13:26,323 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.31s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:13:29,093 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.32s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:13:31,617 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.53s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:13:35,375 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:13:44,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:13:44,078 INFO L93 Difference]: Finished difference Result 188171 states and 273961 transitions. [2022-12-14 07:13:44,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-14 07:13:44,082 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 7 states have (on average 19.857142857142858) internal successors, (139), 6 states have internal predecessors, (139), 2 states have call successors, (57), 2 states have call predecessors, (57), 5 states have return successors, (54), 5 states have call predecessors, (54), 2 states have call successors, (54) Word has length 428 [2022-12-14 07:13:44,082 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:13:44,474 INFO L225 Difference]: With dead ends: 188171 [2022-12-14 07:13:44,474 INFO L226 Difference]: Without dead ends: 94436 [2022-12-14 07:13:44,756 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 437 GetRequests, 430 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-12-14 07:13:44,757 INFO L413 NwaCegarLoop]: 2269 mSDtfsCounter, 11 mSDsluCounter, 15845 mSDsCounter, 0 mSdLazyCounter, 2521 mSolverCounterSat, 0 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 25.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 18114 SdHoareTripleChecker+Invalid, 2523 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2521 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 26.1s IncrementalHoareTripleChecker+Time [2022-12-14 07:13:44,757 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 18114 Invalid, 2523 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2521 Invalid, 2 Unknown, 0 Unchecked, 26.1s Time] [2022-12-14 07:13:44,826 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94436 states. [2022-12-14 07:13:47,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94436 to 94128. [2022-12-14 07:13:47,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94128 states, 60646 states have (on average 1.3405665666325892) internal successors, (81300), 62172 states have internal predecessors, (81300), 25471 states have call successors, (25471), 7989 states have call predecessors, (25471), 8010 states have return successors, (30021), 24443 states have call predecessors, (30021), 25469 states have call successors, (30021) [2022-12-14 07:13:47,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94128 states to 94128 states and 136792 transitions. [2022-12-14 07:13:47,909 INFO L78 Accepts]: Start accepts. Automaton has 94128 states and 136792 transitions. Word has length 428 [2022-12-14 07:13:47,909 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:13:47,909 INFO L495 AbstractCegarLoop]: Abstraction has 94128 states and 136792 transitions. [2022-12-14 07:13:47,909 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 7 states have (on average 19.857142857142858) internal successors, (139), 6 states have internal predecessors, (139), 2 states have call successors, (57), 2 states have call predecessors, (57), 5 states have return successors, (54), 5 states have call predecessors, (54), 2 states have call successors, (54) [2022-12-14 07:13:47,910 INFO L276 IsEmpty]: Start isEmpty. Operand 94128 states and 136792 transitions. [2022-12-14 07:13:48,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 443 [2022-12-14 07:13:48,014 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:13:48,015 INFO L195 NwaCegarLoop]: trace histogram [21, 19, 19, 19, 19, 19, 19, 19, 19, 12, 12, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 07:13:48,046 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c8d8920-80db-4c92-bf8e-04ce55ddabb3/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2022-12-14 07:13:48,215 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c8d8920-80db-4c92-bf8e-04ce55ddabb3/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2022-12-14 07:13:48,216 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 07:13:48,217 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:13:48,217 INFO L85 PathProgramCache]: Analyzing trace with hash 859575951, now seen corresponding path program 1 times [2022-12-14 07:13:48,217 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 07:13:48,217 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1821699972] [2022-12-14 07:13:48,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:13:48,218 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 07:13:48,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:13:50,265 INFO L134 CoverageAnalysis]: Checked inductivity of 2018 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 2012 trivial. 0 not checked. [2022-12-14 07:13:50,265 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 07:13:50,265 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1821699972] [2022-12-14 07:13:50,265 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1821699972] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 07:13:50,265 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1638017056] [2022-12-14 07:13:50,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:13:50,266 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 07:13:50,266 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c8d8920-80db-4c92-bf8e-04ce55ddabb3/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 07:13:50,267 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c8d8920-80db-4c92-bf8e-04ce55ddabb3/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 07:13:50,267 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c8d8920-80db-4c92-bf8e-04ce55ddabb3/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-12-14 07:13:52,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:13:52,209 INFO L263 TraceCheckSpWp]: Trace formula consists of 8907 conjuncts, 28 conjunts are in the unsatisfiable core [2022-12-14 07:13:52,217 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 07:13:52,283 INFO L134 CoverageAnalysis]: Checked inductivity of 2018 backedges. 940 proven. 0 refuted. 0 times theorem prover too weak. 1078 trivial. 0 not checked. [2022-12-14 07:13:52,283 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 07:13:52,283 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1638017056] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 07:13:52,283 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-14 07:13:52,283 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 6 [2022-12-14 07:13:52,283 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1222863967] [2022-12-14 07:13:52,283 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 07:13:52,284 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-14 07:13:52,284 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 07:13:52,284 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-14 07:13:52,284 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-12-14 07:13:52,284 INFO L87 Difference]: Start difference. First operand 94128 states and 136792 transitions. Second operand has 6 states, 6 states have (on average 23.166666666666668) internal successors, (139), 5 states have internal predecessors, (139), 3 states have call successors, (60), 2 states have call predecessors, (60), 3 states have return successors, (57), 4 states have call predecessors, (57), 3 states have call successors, (57) [2022-12-14 07:13:54,361 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:13:56,599 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:14:03,063 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.27s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:14:10,094 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:14:10,094 INFO L93 Difference]: Finished difference Result 188178 states and 273857 transitions. [2022-12-14 07:14:10,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-14 07:14:10,102 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 23.166666666666668) internal successors, (139), 5 states have internal predecessors, (139), 3 states have call successors, (60), 2 states have call predecessors, (60), 3 states have return successors, (57), 4 states have call predecessors, (57), 3 states have call successors, (57) Word has length 442 [2022-12-14 07:14:10,102 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:14:10,506 INFO L225 Difference]: With dead ends: 188178 [2022-12-14 07:14:10,506 INFO L226 Difference]: Without dead ends: 94359 [2022-12-14 07:14:10,847 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 449 GetRequests, 444 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-12-14 07:14:10,848 INFO L413 NwaCegarLoop]: 2258 mSDtfsCounter, 12 mSDsluCounter, 9010 mSDsCounter, 0 mSdLazyCounter, 1567 mSolverCounterSat, 1 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 11268 SdHoareTripleChecker+Invalid, 1570 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1567 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.9s IncrementalHoareTripleChecker+Time [2022-12-14 07:14:10,848 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 11268 Invalid, 1570 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1567 Invalid, 2 Unknown, 0 Unchecked, 14.9s Time] [2022-12-14 07:14:10,923 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94359 states. [2022-12-14 07:14:13,794 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94359 to 94346. [2022-12-14 07:14:13,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94346 states, 60756 states have (on average 1.3399335045098426) internal successors, (81409), 62353 states have internal predecessors, (81409), 25507 states have call successors, (25507), 7989 states have call predecessors, (25507), 8082 states have return successors, (30508), 24480 states have call predecessors, (30508), 25505 states have call successors, (30508) [2022-12-14 07:14:14,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94346 states to 94346 states and 137424 transitions. [2022-12-14 07:14:14,246 INFO L78 Accepts]: Start accepts. Automaton has 94346 states and 137424 transitions. Word has length 442 [2022-12-14 07:14:14,247 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:14:14,247 INFO L495 AbstractCegarLoop]: Abstraction has 94346 states and 137424 transitions. [2022-12-14 07:14:14,247 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 23.166666666666668) internal successors, (139), 5 states have internal predecessors, (139), 3 states have call successors, (60), 2 states have call predecessors, (60), 3 states have return successors, (57), 4 states have call predecessors, (57), 3 states have call successors, (57) [2022-12-14 07:14:14,247 INFO L276 IsEmpty]: Start isEmpty. Operand 94346 states and 137424 transitions. [2022-12-14 07:14:14,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 468 [2022-12-14 07:14:14,391 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:14:14,391 INFO L195 NwaCegarLoop]: trace histogram [23, 19, 19, 19, 19, 19, 19, 19, 19, 12, 12, 4, 3, 3, 3, 3, 3, 3, 3, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 07:14:14,414 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c8d8920-80db-4c92-bf8e-04ce55ddabb3/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2022-12-14 07:14:14,592 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c8d8920-80db-4c92-bf8e-04ce55ddabb3/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2022-12-14 07:14:14,593 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 07:14:14,593 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:14:14,593 INFO L85 PathProgramCache]: Analyzing trace with hash -1224728674, now seen corresponding path program 1 times [2022-12-14 07:14:14,594 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 07:14:14,594 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [196477854] [2022-12-14 07:14:14,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:14:14,594 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 07:14:15,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:14:16,834 INFO L134 CoverageAnalysis]: Checked inductivity of 2126 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 2104 trivial. 0 not checked. [2022-12-14 07:14:16,835 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 07:14:16,835 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [196477854] [2022-12-14 07:14:16,835 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [196477854] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 07:14:16,835 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1192797652] [2022-12-14 07:14:16,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:14:16,835 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 07:14:16,835 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c8d8920-80db-4c92-bf8e-04ce55ddabb3/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 07:14:16,836 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c8d8920-80db-4c92-bf8e-04ce55ddabb3/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 07:14:16,837 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c8d8920-80db-4c92-bf8e-04ce55ddabb3/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-12-14 07:14:21,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:14:21,240 INFO L263 TraceCheckSpWp]: Trace formula consists of 9233 conjuncts, 11 conjunts are in the unsatisfiable core [2022-12-14 07:14:21,251 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 07:14:21,295 INFO L134 CoverageAnalysis]: Checked inductivity of 2126 backedges. 1030 proven. 0 refuted. 0 times theorem prover too weak. 1096 trivial. 0 not checked. [2022-12-14 07:14:21,295 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 07:14:21,295 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1192797652] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 07:14:21,295 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-14 07:14:21,295 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2022-12-14 07:14:21,295 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2030429572] [2022-12-14 07:14:21,295 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 07:14:21,296 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 07:14:21,296 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 07:14:21,296 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 07:14:21,297 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-12-14 07:14:21,297 INFO L87 Difference]: Start difference. First operand 94346 states and 137424 transitions. Second operand has 4 states, 3 states have (on average 47.333333333333336) internal successors, (142), 4 states have internal predecessors, (142), 2 states have call successors, (62), 2 states have call predecessors, (62), 3 states have return successors, (57), 2 states have call predecessors, (57), 2 states have call successors, (57) [2022-12-14 07:14:23,376 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:14:25,589 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:14:28,941 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.62s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:14:29,974 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:14:36,339 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:14:36,339 INFO L93 Difference]: Finished difference Result 188806 states and 275036 transitions. [2022-12-14 07:14:36,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 07:14:36,343 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 47.333333333333336) internal successors, (142), 4 states have internal predecessors, (142), 2 states have call successors, (62), 2 states have call predecessors, (62), 3 states have return successors, (57), 2 states have call predecessors, (57), 2 states have call successors, (57) Word has length 467 [2022-12-14 07:14:36,343 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:14:36,780 INFO L225 Difference]: With dead ends: 188806 [2022-12-14 07:14:36,780 INFO L226 Difference]: Without dead ends: 94420 [2022-12-14 07:14:37,094 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 471 GetRequests, 466 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-12-14 07:14:37,095 INFO L413 NwaCegarLoop]: 2254 mSDtfsCounter, 1 mSDsluCounter, 4480 mSDsCounter, 0 mSdLazyCounter, 957 mSolverCounterSat, 12 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 6734 SdHoareTripleChecker+Invalid, 971 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 957 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.0s IncrementalHoareTripleChecker+Time [2022-12-14 07:14:37,095 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 6734 Invalid, 971 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 957 Invalid, 2 Unknown, 0 Unchecked, 12.0s Time] [2022-12-14 07:14:37,170 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94420 states. [2022-12-14 07:14:39,866 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94420 to 94420. [2022-12-14 07:14:39,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94420 states, 60830 states have (on average 1.3395199736971888) internal successors, (81483), 62427 states have internal predecessors, (81483), 25507 states have call successors, (25507), 7989 states have call predecessors, (25507), 8082 states have return successors, (30508), 24480 states have call predecessors, (30508), 25505 states have call successors, (30508) [2022-12-14 07:14:40,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94420 states to 94420 states and 137498 transitions. [2022-12-14 07:14:40,318 INFO L78 Accepts]: Start accepts. Automaton has 94420 states and 137498 transitions. Word has length 467 [2022-12-14 07:14:40,318 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:14:40,318 INFO L495 AbstractCegarLoop]: Abstraction has 94420 states and 137498 transitions. [2022-12-14 07:14:40,318 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 47.333333333333336) internal successors, (142), 4 states have internal predecessors, (142), 2 states have call successors, (62), 2 states have call predecessors, (62), 3 states have return successors, (57), 2 states have call predecessors, (57), 2 states have call successors, (57) [2022-12-14 07:14:40,318 INFO L276 IsEmpty]: Start isEmpty. Operand 94420 states and 137498 transitions. [2022-12-14 07:14:40,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 469 [2022-12-14 07:14:40,351 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:14:40,351 INFO L195 NwaCegarLoop]: trace histogram [23, 19, 19, 19, 19, 19, 19, 19, 19, 12, 12, 12, 3, 3, 3, 3, 3, 3, 3, 3, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 07:14:40,388 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c8d8920-80db-4c92-bf8e-04ce55ddabb3/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2022-12-14 07:14:40,552 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c8d8920-80db-4c92-bf8e-04ce55ddabb3/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 07:14:40,553 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 07:14:40,554 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:14:40,555 INFO L85 PathProgramCache]: Analyzing trace with hash -741530925, now seen corresponding path program 1 times [2022-12-14 07:14:40,555 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 07:14:40,555 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [398404985] [2022-12-14 07:14:40,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:14:40,556 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 07:14:41,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:14:42,906 INFO L134 CoverageAnalysis]: Checked inductivity of 2330 backedges. 0 proven. 56 refuted. 0 times theorem prover too weak. 2274 trivial. 0 not checked. [2022-12-14 07:14:42,906 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 07:14:42,906 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [398404985] [2022-12-14 07:14:42,907 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [398404985] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 07:14:42,907 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [966226027] [2022-12-14 07:14:42,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:14:42,907 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 07:14:42,907 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c8d8920-80db-4c92-bf8e-04ce55ddabb3/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 07:14:42,908 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c8d8920-80db-4c92-bf8e-04ce55ddabb3/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 07:14:42,909 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c8d8920-80db-4c92-bf8e-04ce55ddabb3/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-12-14 07:14:47,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:14:47,277 INFO L263 TraceCheckSpWp]: Trace formula consists of 9150 conjuncts, 18 conjunts are in the unsatisfiable core [2022-12-14 07:14:47,285 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 07:14:47,355 INFO L134 CoverageAnalysis]: Checked inductivity of 2330 backedges. 1093 proven. 1 refuted. 0 times theorem prover too weak. 1236 trivial. 0 not checked. [2022-12-14 07:14:47,355 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 07:14:47,758 INFO L134 CoverageAnalysis]: Checked inductivity of 2330 backedges. 5 proven. 51 refuted. 0 times theorem prover too weak. 2274 trivial. 0 not checked. [2022-12-14 07:14:47,758 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [966226027] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 07:14:47,758 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [131029751] [2022-12-14 07:14:47,784 INFO L159 IcfgInterpreter]: Started Sifa with 200 locations of interest [2022-12-14 07:14:47,784 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 07:14:47,788 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 07:14:47,793 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 07:14:47,794 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 07:15:13,275 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:15:13,277 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:15:13,279 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:15:13,280 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:15:13,283 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:15:13,284 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:15:13,286 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:15:13,288 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:15:13,290 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:15:13,292 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:15:13,293 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:15:13,295 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:15:16,629 INFO L217 Elim1Store]: Index analysis took 9816 ms