./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-43_2a-drivers--net--ethernet--hp--hp100.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 38b53e6a Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a92a35a-2969-4d00-a41d-0fc3a8fddd22/bin/uautomizer-ZsLfNo2U6R/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a92a35a-2969-4d00-a41d-0fc3a8fddd22/bin/uautomizer-ZsLfNo2U6R/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a92a35a-2969-4d00-a41d-0fc3a8fddd22/bin/uautomizer-ZsLfNo2U6R/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a92a35a-2969-4d00-a41d-0fc3a8fddd22/bin/uautomizer-ZsLfNo2U6R/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--hp--hp100.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a92a35a-2969-4d00-a41d-0fc3a8fddd22/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a92a35a-2969-4d00-a41d-0fc3a8fddd22/bin/uautomizer-ZsLfNo2U6R --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 71a394c873c772dcf5e6708cb37d9b35e24256f5a212c542b9c08f202c87eae6 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-38b53e6 [2022-11-25 17:34:22,712 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 17:34:22,716 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 17:34:22,761 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 17:34:22,762 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 17:34:22,763 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 17:34:22,765 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 17:34:22,767 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 17:34:22,770 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 17:34:22,771 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 17:34:22,772 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 17:34:22,774 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 17:34:22,775 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 17:34:22,777 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 17:34:22,778 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 17:34:22,780 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 17:34:22,781 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 17:34:22,783 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 17:34:22,785 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 17:34:22,788 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 17:34:22,790 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 17:34:22,792 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 17:34:22,794 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 17:34:22,795 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 17:34:22,801 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 17:34:22,801 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 17:34:22,802 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 17:34:22,803 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 17:34:22,804 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 17:34:22,806 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 17:34:22,806 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 17:34:22,808 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 17:34:22,809 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 17:34:22,811 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 17:34:22,812 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 17:34:22,813 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 17:34:22,814 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 17:34:22,815 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 17:34:22,815 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 17:34:22,816 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 17:34:22,818 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 17:34:22,819 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a92a35a-2969-4d00-a41d-0fc3a8fddd22/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-11-25 17:34:22,848 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 17:34:22,848 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 17:34:22,849 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 17:34:22,849 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 17:34:22,850 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 17:34:22,851 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 17:34:22,852 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-25 17:34:22,852 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-25 17:34:22,853 INFO L138 SettingsManager]: * Use SBE=true [2022-11-25 17:34:22,853 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 17:34:22,853 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 17:34:22,854 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 17:34:22,854 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 17:34:22,855 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 17:34:22,855 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 17:34:22,855 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 17:34:22,855 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 17:34:22,856 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 17:34:22,856 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 17:34:22,857 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-25 17:34:22,857 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 17:34:22,857 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 17:34:22,858 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 17:34:22,858 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 17:34:22,858 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 17:34:22,858 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-25 17:34:22,859 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-25 17:34:22,859 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-25 17:34:22,859 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 17:34:22,860 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-11-25 17:34:22,860 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-25 17:34:22,860 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a92a35a-2969-4d00-a41d-0fc3a8fddd22/bin/uautomizer-ZsLfNo2U6R/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a92a35a-2969-4d00-a41d-0fc3a8fddd22/bin/uautomizer-ZsLfNo2U6R Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 71a394c873c772dcf5e6708cb37d9b35e24256f5a212c542b9c08f202c87eae6 [2022-11-25 17:34:23,175 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 17:34:23,205 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 17:34:23,210 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 17:34:23,211 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 17:34:23,212 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 17:34:23,213 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a92a35a-2969-4d00-a41d-0fc3a8fddd22/bin/uautomizer-ZsLfNo2U6R/../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--hp--hp100.ko-entry_point.cil.out.i [2022-11-25 17:34:26,756 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 17:34:27,640 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 17:34:27,641 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a92a35a-2969-4d00-a41d-0fc3a8fddd22/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--hp--hp100.ko-entry_point.cil.out.i [2022-11-25 17:34:27,698 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a92a35a-2969-4d00-a41d-0fc3a8fddd22/bin/uautomizer-ZsLfNo2U6R/data/0773dc6c2/0b828107196640f49d7e092ae76590cd/FLAG99f8cf2f0 [2022-11-25 17:34:27,716 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a92a35a-2969-4d00-a41d-0fc3a8fddd22/bin/uautomizer-ZsLfNo2U6R/data/0773dc6c2/0b828107196640f49d7e092ae76590cd [2022-11-25 17:34:27,719 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 17:34:27,721 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 17:34:27,723 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 17:34:27,723 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 17:34:27,728 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 17:34:27,729 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 05:34:27" (1/1) ... [2022-11-25 17:34:27,731 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@66dd1ae3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:34:27, skipping insertion in model container [2022-11-25 17:34:27,731 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 05:34:27" (1/1) ... [2022-11-25 17:34:27,741 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 17:34:27,899 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 17:34:28,802 WARN L623 FunctionHandler]: Unknown extern function __bad_percpu_size [2022-11-25 17:34:28,843 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock [2022-11-25 17:34:28,855 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_unlock [2022-11-25 17:34:28,868 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_unlock_irqrestore [2022-11-25 17:34:28,900 WARN L623 FunctionHandler]: Unknown extern function ioremap_nocache [2022-11-25 17:34:29,034 WARN L623 FunctionHandler]: Unknown extern function request_threaded_irq [2022-11-25 17:34:29,096 WARN L623 FunctionHandler]: Unknown extern function pci_bus_read_config_word [2022-11-25 17:34:29,104 WARN L623 FunctionHandler]: Unknown extern function pci_bus_write_config_word [2022-11-25 17:34:29,171 WARN L623 FunctionHandler]: Unknown extern function __phys_addr [2022-11-25 17:34:29,182 WARN L623 FunctionHandler]: Unknown extern function __phys_addr [2022-11-25 17:34:29,182 WARN L623 FunctionHandler]: Unknown extern function debug_dma_map_page [2022-11-25 17:34:29,197 WARN L623 FunctionHandler]: Unknown extern function debug_dma_unmap_page [2022-11-25 17:34:29,220 WARN L623 FunctionHandler]: Unknown extern function dma_alloc_attrs [2022-11-25 17:34:29,236 WARN L623 FunctionHandler]: Unknown extern function dma_free_attrs [2022-11-25 17:34:29,260 WARN L623 FunctionHandler]: Unknown extern function dma_set_mask [2022-11-25 17:34:29,371 WARN L623 FunctionHandler]: Unknown extern function skb_pad [2022-11-25 17:34:29,431 WARN L623 FunctionHandler]: Unknown extern function __dev_kfree_skb_any [2022-11-25 17:34:29,438 WARN L623 FunctionHandler]: Unknown extern function __dev_kfree_skb_any [2022-11-25 17:34:29,638 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-25 17:34:29,639 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-25 17:34:29,664 WARN L623 FunctionHandler]: Unknown extern function sprintf [2022-11-25 17:34:29,682 WARN L623 FunctionHandler]: Unknown extern function __request_region [2022-11-25 17:34:29,684 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:34:29,691 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:34:29,693 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:34:29,697 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:34:29,698 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:34:29,700 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:34:29,709 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:34:29,711 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:34:29,712 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:34:29,713 WARN L623 FunctionHandler]: Unknown extern function __raw_spin_lock_init [2022-11-25 17:34:29,713 WARN L623 FunctionHandler]: Unknown extern function strlcpy [2022-11-25 17:34:29,731 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:34:29,732 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:34:29,733 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:34:29,734 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:34:29,735 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:34:29,737 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:34:29,739 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:34:29,739 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:34:29,744 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:34:29,746 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:34:29,749 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:34:29,749 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:34:29,751 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:34:29,751 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:34:29,755 WARN L623 FunctionHandler]: Unknown extern function iounmap [2022-11-25 17:34:29,756 WARN L623 FunctionHandler]: Unknown extern function __release_region [2022-11-25 17:34:29,779 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:34:29,786 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:34:29,795 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:34:29,804 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:34:29,812 WARN L623 FunctionHandler]: Unknown extern function skb_put [2022-11-25 17:34:29,824 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:34:29,844 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:34:29,849 WARN L623 FunctionHandler]: Unknown extern function dev_trans_start [2022-11-25 17:34:29,852 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:34:29,855 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:34:29,856 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:34:29,858 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:34:29,863 WARN L623 FunctionHandler]: Unknown extern function consume_skb [2022-11-25 17:34:29,877 WARN L623 FunctionHandler]: Unknown extern function dev_trans_start [2022-11-25 17:34:29,883 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:34:29,885 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:34:29,887 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:34:29,889 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:34:29,890 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-25 17:34:29,890 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-25 17:34:29,901 WARN L623 FunctionHandler]: Unknown extern function consume_skb [2022-11-25 17:34:29,915 WARN L623 FunctionHandler]: Unknown extern function skb_put [2022-11-25 17:34:29,917 WARN L623 FunctionHandler]: Unknown extern function eth_type_trans [2022-11-25 17:34:29,917 WARN L623 FunctionHandler]: Unknown extern function netif_rx [2022-11-25 17:34:29,926 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:34:29,927 WARN L623 FunctionHandler]: Unknown extern function skb_trim [2022-11-25 17:34:29,928 WARN L623 FunctionHandler]: Unknown extern function eth_type_trans [2022-11-25 17:34:29,928 WARN L623 FunctionHandler]: Unknown extern function netif_rx [2022-11-25 17:34:29,941 WARN L623 FunctionHandler]: Unknown extern function memcmp [2022-11-25 17:34:29,945 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:34:29,952 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:34:29,954 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:34:29,960 WARN L623 FunctionHandler]: Unknown extern function schedule_timeout_interruptible [2022-11-25 17:34:29,962 WARN L623 FunctionHandler]: Unknown extern function schedule_timeout_interruptible [2022-11-25 17:34:29,963 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-25 17:34:29,964 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-25 17:34:29,966 WARN L623 FunctionHandler]: Unknown extern function schedule_timeout_interruptible [2022-11-25 17:34:29,968 WARN L623 FunctionHandler]: Unknown extern function schedule_timeout_interruptible [2022-11-25 17:34:29,969 WARN L623 FunctionHandler]: Unknown extern function schedule_timeout_interruptible [2022-11-25 17:34:29,973 WARN L623 FunctionHandler]: Unknown extern function schedule_timeout_interruptible [2022-11-25 17:34:29,976 WARN L623 FunctionHandler]: Unknown extern function schedule_timeout_interruptible [2022-11-25 17:34:29,978 WARN L623 FunctionHandler]: Unknown extern function schedule_timeout_interruptible [2022-11-25 17:34:29,979 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:34:29,980 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:34:29,981 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:34:29,982 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:34:29,983 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:34:29,986 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-25 17:34:29,987 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-25 17:34:29,992 WARN L623 FunctionHandler]: Unknown extern function __release_region [2022-11-25 17:34:29,993 WARN L623 FunctionHandler]: Unknown extern function iounmap [2022-11-25 17:34:29,998 WARN L623 FunctionHandler]: Unknown extern function pci_enable_device [2022-11-25 17:34:29,999 WARN L623 FunctionHandler]: Unknown extern function alloc_etherdev_mqs [2022-11-25 17:34:30,001 WARN L623 FunctionHandler]: Unknown extern function pci_disable_device [2022-11-25 17:34:30,006 WARN L623 FunctionHandler]: Unknown extern function pci_disable_device [2022-11-25 17:34:30,058 WARN L623 FunctionHandler]: Unknown extern function ldv_initialize [2022-11-25 17:34:30,059 WARN L623 FunctionHandler]: Unknown extern function eth_validate_addr [2022-11-25 17:34:30,059 WARN L623 FunctionHandler]: Unknown extern function eth_validate_addr [2022-11-25 17:34:30,064 WARN L623 FunctionHandler]: Unknown extern function eth_validate_addr [2022-11-25 17:34:30,065 WARN L623 FunctionHandler]: Unknown extern function eth_change_mtu [2022-11-25 17:34:30,066 WARN L623 FunctionHandler]: Unknown extern function eth_change_mtu [2022-11-25 17:34:30,067 WARN L623 FunctionHandler]: Unknown extern function eth_mac_addr [2022-11-25 17:34:30,067 WARN L623 FunctionHandler]: Unknown extern function eth_mac_addr [2022-11-25 17:34:30,068 WARN L623 FunctionHandler]: Unknown extern function eth_mac_addr [2022-11-25 17:34:30,069 WARN L623 FunctionHandler]: Unknown extern function ldv_ndo_init_4 [2022-11-25 17:34:30,069 WARN L623 FunctionHandler]: Unknown extern function ldv_ndo_uninit_4 [2022-11-25 17:34:30,071 WARN L623 FunctionHandler]: Unknown extern function eth_validate_addr [2022-11-25 17:34:30,072 WARN L623 FunctionHandler]: Unknown extern function eth_validate_addr [2022-11-25 17:34:30,073 WARN L623 FunctionHandler]: Unknown extern function eth_validate_addr [2022-11-25 17:34:30,073 WARN L623 FunctionHandler]: Unknown extern function eth_change_mtu [2022-11-25 17:34:30,074 WARN L623 FunctionHandler]: Unknown extern function eth_change_mtu [2022-11-25 17:34:30,075 WARN L623 FunctionHandler]: Unknown extern function eth_mac_addr [2022-11-25 17:34:30,076 WARN L623 FunctionHandler]: Unknown extern function eth_mac_addr [2022-11-25 17:34:30,076 WARN L623 FunctionHandler]: Unknown extern function eth_mac_addr [2022-11-25 17:34:30,077 WARN L623 FunctionHandler]: Unknown extern function ldv_ndo_init_3 [2022-11-25 17:34:30,077 WARN L623 FunctionHandler]: Unknown extern function ldv_ndo_uninit_3 [2022-11-25 17:34:30,079 WARN L623 FunctionHandler]: Unknown extern function ldv_shutdown_2 [2022-11-25 17:34:30,080 WARN L623 FunctionHandler]: Unknown extern function ldv_check_final_state [2022-11-25 17:34:30,083 WARN L623 FunctionHandler]: Unknown extern function register_netdev [2022-11-25 17:34:30,085 WARN L623 FunctionHandler]: Unknown extern function free_irq [2022-11-25 17:34:30,085 WARN L623 FunctionHandler]: Unknown extern function unregister_netdev [2022-11-25 17:34:30,086 WARN L623 FunctionHandler]: Unknown extern function free_netdev [2022-11-25 17:34:30,087 WARN L623 FunctionHandler]: Unknown extern function free_netdev [2022-11-25 17:34:30,087 WARN L623 FunctionHandler]: Unknown extern function __pci_register_driver [2022-11-25 17:34:30,088 WARN L623 FunctionHandler]: Unknown extern function pci_unregister_driver [2022-11-25 17:34:30,093 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_8a92a35a-2969-4d00-a41d-0fc3a8fddd22/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--hp--hp100.ko-entry_point.cil.out.i[263471,263484] [2022-11-25 17:34:30,131 WARN L623 FunctionHandler]: Unknown extern function ldv_some_page [2022-11-25 17:34:30,168 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 17:34:30,208 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 17:34:30,489 WARN L623 FunctionHandler]: Unknown extern function __bad_percpu_size [2022-11-25 17:34:30,490 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock [2022-11-25 17:34:30,491 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_unlock [2022-11-25 17:34:30,492 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_unlock_irqrestore [2022-11-25 17:34:30,494 WARN L623 FunctionHandler]: Unknown extern function ioremap_nocache [2022-11-25 17:34:30,497 WARN L623 FunctionHandler]: Unknown extern function request_threaded_irq [2022-11-25 17:34:30,499 WARN L623 FunctionHandler]: Unknown extern function pci_bus_read_config_word [2022-11-25 17:34:30,505 WARN L623 FunctionHandler]: Unknown extern function pci_bus_write_config_word [2022-11-25 17:34:30,521 WARN L623 FunctionHandler]: Unknown extern function __phys_addr [2022-11-25 17:34:30,525 WARN L623 FunctionHandler]: Unknown extern function __phys_addr [2022-11-25 17:34:30,526 WARN L623 FunctionHandler]: Unknown extern function debug_dma_map_page [2022-11-25 17:34:30,528 WARN L623 FunctionHandler]: Unknown extern function debug_dma_unmap_page [2022-11-25 17:34:30,529 WARN L623 FunctionHandler]: Unknown extern function dma_alloc_attrs [2022-11-25 17:34:30,531 WARN L623 FunctionHandler]: Unknown extern function dma_free_attrs [2022-11-25 17:34:30,533 WARN L623 FunctionHandler]: Unknown extern function dma_set_mask [2022-11-25 17:34:30,541 WARN L623 FunctionHandler]: Unknown extern function skb_pad [2022-11-25 17:34:30,550 WARN L623 FunctionHandler]: Unknown extern function __dev_kfree_skb_any [2022-11-25 17:34:30,551 WARN L623 FunctionHandler]: Unknown extern function __dev_kfree_skb_any [2022-11-25 17:34:30,558 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-25 17:34:30,558 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-25 17:34:30,565 WARN L623 FunctionHandler]: Unknown extern function sprintf [2022-11-25 17:34:30,570 WARN L623 FunctionHandler]: Unknown extern function __request_region [2022-11-25 17:34:30,572 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:34:30,579 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:34:30,587 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:34:30,588 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:34:30,589 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:34:30,591 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:34:30,593 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:34:30,594 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:34:30,595 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:34:30,595 WARN L623 FunctionHandler]: Unknown extern function __raw_spin_lock_init [2022-11-25 17:34:30,596 WARN L623 FunctionHandler]: Unknown extern function strlcpy [2022-11-25 17:34:30,601 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:34:30,602 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:34:30,602 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:34:30,603 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:34:30,604 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:34:30,605 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:34:30,605 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:34:30,606 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:34:30,607 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:34:30,608 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:34:30,610 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:34:30,611 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:34:30,611 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:34:30,612 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:34:30,613 WARN L623 FunctionHandler]: Unknown extern function iounmap [2022-11-25 17:34:30,613 WARN L623 FunctionHandler]: Unknown extern function __release_region [2022-11-25 17:34:30,628 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:34:30,633 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:34:30,645 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:34:30,648 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:34:30,650 WARN L623 FunctionHandler]: Unknown extern function skb_put [2022-11-25 17:34:30,656 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:34:30,658 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:34:30,665 WARN L623 FunctionHandler]: Unknown extern function dev_trans_start [2022-11-25 17:34:30,666 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:34:30,667 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:34:30,667 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:34:30,668 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:34:30,674 WARN L623 FunctionHandler]: Unknown extern function consume_skb [2022-11-25 17:34:30,678 WARN L623 FunctionHandler]: Unknown extern function dev_trans_start [2022-11-25 17:34:30,679 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:34:30,680 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:34:30,682 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:34:30,683 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:34:30,686 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-25 17:34:30,686 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-25 17:34:30,689 WARN L623 FunctionHandler]: Unknown extern function consume_skb [2022-11-25 17:34:30,692 WARN L623 FunctionHandler]: Unknown extern function skb_put [2022-11-25 17:34:30,693 WARN L623 FunctionHandler]: Unknown extern function eth_type_trans [2022-11-25 17:34:30,694 WARN L623 FunctionHandler]: Unknown extern function netif_rx [2022-11-25 17:34:30,696 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:34:30,697 WARN L623 FunctionHandler]: Unknown extern function skb_trim [2022-11-25 17:34:30,697 WARN L623 FunctionHandler]: Unknown extern function eth_type_trans [2022-11-25 17:34:30,698 WARN L623 FunctionHandler]: Unknown extern function netif_rx [2022-11-25 17:34:30,706 WARN L623 FunctionHandler]: Unknown extern function memcmp [2022-11-25 17:34:30,709 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:34:30,714 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:34:30,716 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:34:30,720 WARN L623 FunctionHandler]: Unknown extern function schedule_timeout_interruptible [2022-11-25 17:34:30,722 WARN L623 FunctionHandler]: Unknown extern function schedule_timeout_interruptible [2022-11-25 17:34:30,722 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-25 17:34:30,723 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-25 17:34:30,725 WARN L623 FunctionHandler]: Unknown extern function schedule_timeout_interruptible [2022-11-25 17:34:30,727 WARN L623 FunctionHandler]: Unknown extern function schedule_timeout_interruptible [2022-11-25 17:34:30,729 WARN L623 FunctionHandler]: Unknown extern function schedule_timeout_interruptible [2022-11-25 17:34:30,736 WARN L623 FunctionHandler]: Unknown extern function schedule_timeout_interruptible [2022-11-25 17:34:30,739 WARN L623 FunctionHandler]: Unknown extern function schedule_timeout_interruptible [2022-11-25 17:34:30,740 WARN L623 FunctionHandler]: Unknown extern function schedule_timeout_interruptible [2022-11-25 17:34:30,741 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:34:30,742 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:34:30,742 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:34:30,743 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:34:30,744 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:34:30,746 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-25 17:34:30,747 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-25 17:34:30,747 WARN L623 FunctionHandler]: Unknown extern function __release_region [2022-11-25 17:34:30,748 WARN L623 FunctionHandler]: Unknown extern function iounmap [2022-11-25 17:34:30,749 WARN L623 FunctionHandler]: Unknown extern function pci_enable_device [2022-11-25 17:34:30,749 WARN L623 FunctionHandler]: Unknown extern function alloc_etherdev_mqs [2022-11-25 17:34:30,754 WARN L623 FunctionHandler]: Unknown extern function pci_disable_device [2022-11-25 17:34:30,755 WARN L623 FunctionHandler]: Unknown extern function pci_disable_device [2022-11-25 17:34:30,762 WARN L623 FunctionHandler]: Unknown extern function ldv_initialize [2022-11-25 17:34:30,763 WARN L623 FunctionHandler]: Unknown extern function eth_validate_addr [2022-11-25 17:34:30,764 WARN L623 FunctionHandler]: Unknown extern function eth_validate_addr [2022-11-25 17:34:30,765 WARN L623 FunctionHandler]: Unknown extern function eth_validate_addr [2022-11-25 17:34:30,766 WARN L623 FunctionHandler]: Unknown extern function eth_change_mtu [2022-11-25 17:34:30,766 WARN L623 FunctionHandler]: Unknown extern function eth_change_mtu [2022-11-25 17:34:30,767 WARN L623 FunctionHandler]: Unknown extern function eth_mac_addr [2022-11-25 17:34:30,767 WARN L623 FunctionHandler]: Unknown extern function eth_mac_addr [2022-11-25 17:34:30,768 WARN L623 FunctionHandler]: Unknown extern function eth_mac_addr [2022-11-25 17:34:30,769 WARN L623 FunctionHandler]: Unknown extern function ldv_ndo_init_4 [2022-11-25 17:34:30,805 WARN L623 FunctionHandler]: Unknown extern function ldv_ndo_uninit_4 [2022-11-25 17:34:30,807 WARN L623 FunctionHandler]: Unknown extern function eth_validate_addr [2022-11-25 17:34:30,807 WARN L623 FunctionHandler]: Unknown extern function eth_validate_addr [2022-11-25 17:34:30,808 WARN L623 FunctionHandler]: Unknown extern function eth_validate_addr [2022-11-25 17:34:30,808 WARN L623 FunctionHandler]: Unknown extern function eth_change_mtu [2022-11-25 17:34:30,809 WARN L623 FunctionHandler]: Unknown extern function eth_change_mtu [2022-11-25 17:34:30,809 WARN L623 FunctionHandler]: Unknown extern function eth_mac_addr [2022-11-25 17:34:30,810 WARN L623 FunctionHandler]: Unknown extern function eth_mac_addr [2022-11-25 17:34:30,810 WARN L623 FunctionHandler]: Unknown extern function eth_mac_addr [2022-11-25 17:34:30,811 WARN L623 FunctionHandler]: Unknown extern function ldv_ndo_init_3 [2022-11-25 17:34:30,811 WARN L623 FunctionHandler]: Unknown extern function ldv_ndo_uninit_3 [2022-11-25 17:34:30,812 WARN L623 FunctionHandler]: Unknown extern function ldv_shutdown_2 [2022-11-25 17:34:30,812 WARN L623 FunctionHandler]: Unknown extern function ldv_check_final_state [2022-11-25 17:34:30,817 WARN L623 FunctionHandler]: Unknown extern function register_netdev [2022-11-25 17:34:30,819 WARN L623 FunctionHandler]: Unknown extern function free_irq [2022-11-25 17:34:30,819 WARN L623 FunctionHandler]: Unknown extern function unregister_netdev [2022-11-25 17:34:30,819 WARN L623 FunctionHandler]: Unknown extern function free_netdev [2022-11-25 17:34:30,820 WARN L623 FunctionHandler]: Unknown extern function free_netdev [2022-11-25 17:34:30,820 WARN L623 FunctionHandler]: Unknown extern function __pci_register_driver [2022-11-25 17:34:30,821 WARN L623 FunctionHandler]: Unknown extern function pci_unregister_driver [2022-11-25 17:34:30,822 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_8a92a35a-2969-4d00-a41d-0fc3a8fddd22/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--hp--hp100.ko-entry_point.cil.out.i[263471,263484] [2022-11-25 17:34:30,824 WARN L623 FunctionHandler]: Unknown extern function ldv_some_page [2022-11-25 17:34:30,833 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 17:34:31,002 INFO L208 MainTranslator]: Completed translation [2022-11-25 17:34:31,002 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:34:31 WrapperNode [2022-11-25 17:34:31,002 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 17:34:31,004 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 17:34:31,005 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 17:34:31,011 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 17:34:31,019 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:34:31" (1/1) ... [2022-11-25 17:34:31,128 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:34:31" (1/1) ... [2022-11-25 17:34:31,349 INFO L138 Inliner]: procedures = 225, calls = 1464, calls flagged for inlining = 103, calls inlined = 100, statements flattened = 3737 [2022-11-25 17:34:31,349 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 17:34:31,350 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 17:34:31,350 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 17:34:31,350 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 17:34:31,361 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:34:31" (1/1) ... [2022-11-25 17:34:31,361 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:34:31" (1/1) ... [2022-11-25 17:34:31,389 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:34:31" (1/1) ... [2022-11-25 17:34:31,390 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:34:31" (1/1) ... [2022-11-25 17:34:31,481 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:34:31" (1/1) ... [2022-11-25 17:34:31,506 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:34:31" (1/1) ... [2022-11-25 17:34:31,538 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:34:31" (1/1) ... [2022-11-25 17:34:31,561 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:34:31" (1/1) ... [2022-11-25 17:34:31,612 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 17:34:31,613 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 17:34:31,613 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 17:34:31,613 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 17:34:31,614 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:34:31" (1/1) ... [2022-11-25 17:34:31,624 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 17:34:31,637 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a92a35a-2969-4d00-a41d-0fc3a8fddd22/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:34:31,652 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a92a35a-2969-4d00-a41d-0fc3a8fddd22/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 17:34:31,684 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a92a35a-2969-4d00-a41d-0fc3a8fddd22/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 17:34:31,708 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_update_stats [2022-11-25 17:34:31,708 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_update_stats [2022-11-25 17:34:31,708 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-25 17:34:31,708 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-25 17:34:31,708 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-25 17:34:31,709 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-25 17:34:31,709 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-11-25 17:34:31,709 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-11-25 17:34:31,709 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_alloc_skb [2022-11-25 17:34:31,709 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_alloc_skb [2022-11-25 17:34:31,709 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2022-11-25 17:34:31,709 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2022-11-25 17:34:31,709 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-25 17:34:31,709 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-25 17:34:31,710 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-11-25 17:34:31,710 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-11-25 17:34:31,710 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2022-11-25 17:34:31,710 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2022-11-25 17:34:31,711 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2022-11-25 17:34:31,711 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2022-11-25 17:34:31,711 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-25 17:34:31,711 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-25 17:34:31,711 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-25 17:34:31,711 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-25 17:34:31,711 INFO L130 BoogieDeclarations]: Found specification of procedure dev_trans_start [2022-11-25 17:34:31,712 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_trans_start [2022-11-25 17:34:31,712 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_open [2022-11-25 17:34:31,712 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_open [2022-11-25 17:34:31,712 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_load_eeprom [2022-11-25 17:34:31,712 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_load_eeprom [2022-11-25 17:34:31,712 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2022-11-25 17:34:31,712 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2022-11-25 17:34:31,712 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-25 17:34:31,712 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2022-11-25 17:34:31,713 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_sense_lan [2022-11-25 17:34:31,713 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_sense_lan [2022-11-25 17:34:31,713 INFO L130 BoogieDeclarations]: Found specification of procedure eth_mac_addr [2022-11-25 17:34:31,713 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_mac_addr [2022-11-25 17:34:31,713 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-25 17:34:31,713 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_get_stats [2022-11-25 17:34:31,713 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_get_stats [2022-11-25 17:34:31,713 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2022-11-25 17:34:31,714 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2022-11-25 17:34:31,714 INFO L130 BoogieDeclarations]: Found specification of procedure netif_rx [2022-11-25 17:34:31,714 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_rx [2022-11-25 17:34:31,714 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock [2022-11-25 17:34:31,714 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock [2022-11-25 17:34:31,714 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-11-25 17:34:31,714 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-11-25 17:34:31,715 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2022-11-25 17:34:31,715 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2022-11-25 17:34:31,715 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-25 17:34:31,715 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2022-11-25 17:34:31,715 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2022-11-25 17:34:31,715 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-25 17:34:31,715 INFO L130 BoogieDeclarations]: Found specification of procedure pci_write_config_word [2022-11-25 17:34:31,715 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_write_config_word [2022-11-25 17:34:31,716 INFO L130 BoogieDeclarations]: Found specification of procedure outw [2022-11-25 17:34:31,716 INFO L138 BoogieDeclarations]: Found implementation of procedure outw [2022-11-25 17:34:31,716 INFO L130 BoogieDeclarations]: Found specification of procedure eth_change_mtu [2022-11-25 17:34:31,716 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_change_mtu [2022-11-25 17:34:31,716 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-11-25 17:34:31,716 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-11-25 17:34:31,716 INFO L130 BoogieDeclarations]: Found specification of procedure outb [2022-11-25 17:34:31,716 INFO L138 BoogieDeclarations]: Found implementation of procedure outb [2022-11-25 17:34:31,717 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-11-25 17:34:31,717 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-11-25 17:34:31,717 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2022-11-25 17:34:31,717 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2022-11-25 17:34:31,717 INFO L130 BoogieDeclarations]: Found specification of procedure outl [2022-11-25 17:34:31,717 INFO L138 BoogieDeclarations]: Found implementation of procedure outl [2022-11-25 17:34:31,717 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_cascade_reset [2022-11-25 17:34:31,717 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_cascade_reset [2022-11-25 17:34:31,718 INFO L130 BoogieDeclarations]: Found specification of procedure __dev_kfree_skb_any [2022-11-25 17:34:31,718 INFO L138 BoogieDeclarations]: Found implementation of procedure __dev_kfree_skb_any [2022-11-25 17:34:31,718 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-11-25 17:34:31,718 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-11-25 17:34:31,718 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-11-25 17:34:31,718 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-25 17:34:31,718 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_build_rx_pdl [2022-11-25 17:34:31,718 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_build_rx_pdl [2022-11-25 17:34:31,719 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reserve [2022-11-25 17:34:31,719 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reserve [2022-11-25 17:34:31,719 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-25 17:34:31,719 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-11-25 17:34:31,719 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-11-25 17:34:31,719 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2022-11-25 17:34:31,719 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2022-11-25 17:34:31,719 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-25 17:34:31,720 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-25 17:34:31,720 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_rx_bm [2022-11-25 17:34:31,720 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_rx_bm [2022-11-25 17:34:31,720 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_BM_shutdown [2022-11-25 17:34:31,720 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_BM_shutdown [2022-11-25 17:34:31,720 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2022-11-25 17:34:31,720 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2022-11-25 17:34:31,720 INFO L130 BoogieDeclarations]: Found specification of procedure wait [2022-11-25 17:34:31,725 INFO L138 BoogieDeclarations]: Found implementation of procedure wait [2022-11-25 17:34:31,725 INFO L130 BoogieDeclarations]: Found specification of procedure __release_region [2022-11-25 17:34:31,725 INFO L138 BoogieDeclarations]: Found implementation of procedure __release_region [2022-11-25 17:34:31,726 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2022-11-25 17:34:31,726 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2022-11-25 17:34:31,726 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_hwinit [2022-11-25 17:34:31,726 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_hwinit [2022-11-25 17:34:31,726 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-25 17:34:31,726 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2022-11-25 17:34:31,726 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2022-11-25 17:34:31,726 INFO L130 BoogieDeclarations]: Found specification of procedure dev_consume_skb_any [2022-11-25 17:34:31,727 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_consume_skb_any [2022-11-25 17:34:31,727 INFO L130 BoogieDeclarations]: Found specification of procedure eth_type_trans [2022-11-25 17:34:31,727 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_type_trans [2022-11-25 17:34:31,727 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-25 17:34:31,727 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-25 17:34:31,727 INFO L130 BoogieDeclarations]: Found specification of procedure virt_to_whatever [2022-11-25 17:34:31,727 INFO L138 BoogieDeclarations]: Found implementation of procedure virt_to_whatever [2022-11-25 17:34:31,727 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2022-11-25 17:34:31,728 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2022-11-25 17:34:31,728 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_close [2022-11-25 17:34:31,728 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_close [2022-11-25 17:34:31,728 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_timeout_interruptible [2022-11-25 17:34:31,729 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_timeout_interruptible [2022-11-25 17:34:31,729 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_stop_interface [2022-11-25 17:34:31,729 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_stop_interface [2022-11-25 17:34:31,729 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-25 17:34:31,730 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_check_lan [2022-11-25 17:34:31,730 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_check_lan [2022-11-25 17:34:31,730 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2022-11-25 17:34:31,730 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2022-11-25 17:34:31,730 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-25 17:34:31,730 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-11-25 17:34:31,730 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-11-25 17:34:31,730 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-25 17:34:31,731 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-11-25 17:34:31,731 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_1 [2022-11-25 17:34:31,731 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_1 [2022-11-25 17:34:31,731 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_set_multicast_list [2022-11-25 17:34:31,731 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_set_multicast_list [2022-11-25 17:34:31,731 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_rxfill [2022-11-25 17:34:31,731 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_rxfill [2022-11-25 17:34:31,731 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_start_interface [2022-11-25 17:34:31,732 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_start_interface [2022-11-25 17:34:31,732 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2022-11-25 17:34:31,732 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2022-11-25 17:34:31,732 INFO L130 BoogieDeclarations]: Found specification of procedure inb [2022-11-25 17:34:31,732 INFO L138 BoogieDeclarations]: Found implementation of procedure inb [2022-11-25 17:34:31,732 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_clean_txring [2022-11-25 17:34:31,732 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_clean_txring [2022-11-25 17:34:31,732 INFO L130 BoogieDeclarations]: Found specification of procedure inl [2022-11-25 17:34:31,733 INFO L138 BoogieDeclarations]: Found implementation of procedure inl [2022-11-25 17:34:31,733 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-25 17:34:31,733 INFO L130 BoogieDeclarations]: Found specification of procedure inw [2022-11-25 17:34:31,733 INFO L138 BoogieDeclarations]: Found implementation of procedure inw [2022-11-25 17:34:31,733 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 17:34:31,733 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 17:34:31,733 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_login_to_vg_hub [2022-11-25 17:34:31,733 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_login_to_vg_hub [2022-11-25 17:34:31,733 INFO L130 BoogieDeclarations]: Found specification of procedure preempt_count [2022-11-25 17:34:31,734 INFO L138 BoogieDeclarations]: Found implementation of procedure preempt_count [2022-11-25 17:34:32,668 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 17:34:32,672 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 17:34:33,519 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-25 17:34:36,781 WARN L816 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-11-25 17:34:37,038 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##8: assume 0 == (if 0 == ~tmp___4~7#1 then 0 else (if 2096896 == ~tmp___4~7#1 then ~tmp___4~7#1 else ~bitwiseAnd(~tmp___4~7#1, 2096896))) % 18446744073709551616; [2022-11-25 17:34:37,038 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##9: assume !(0 == (if 0 == ~tmp___4~7#1 then 0 else (if 2096896 == ~tmp___4~7#1 then ~tmp___4~7#1 else ~bitwiseAnd(~tmp___4~7#1, 2096896))) % 18446744073709551616); [2022-11-25 17:34:37,038 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L8189-1: assume -9223372036854775808 <= #t~ret666#1 && #t~ret666#1 <= 9223372036854775807;havoc #t~ret666#1; [2022-11-25 17:34:37,039 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L8189: SUMMARY for call #t~ret666#1 := schedule_timeout_interruptible(1); srcloc: null [2022-11-25 17:34:37,039 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L8192: assume (if (~jiffies~0 - ~time~2#1) % 18446744073709551616 % 18446744073709551616 <= 9223372036854775807 then (~jiffies~0 - ~time~2#1) % 18446744073709551616 % 18446744073709551616 else (~jiffies~0 - ~time~2#1) % 18446744073709551616 % 18446744073709551616 - 18446744073709551616) < 0; [2022-11-25 17:34:37,039 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L8192: assume !((if (~jiffies~0 - ~time~2#1) % 18446744073709551616 % 18446744073709551616 <= 9223372036854775807 then (~jiffies~0 - ~time~2#1) % 18446744073709551616 % 18446744073709551616 else (~jiffies~0 - ~time~2#1) % 18446744073709551616 % 18446744073709551616 - 18446744073709551616) < 0); [2022-11-25 17:34:37,226 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 17:34:37,257 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 17:34:37,257 INFO L300 CfgBuilder]: Removed 8 assume(true) statements. [2022-11-25 17:34:37,263 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:34:37 BoogieIcfgContainer [2022-11-25 17:34:37,264 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 17:34:37,269 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 17:34:37,270 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 17:34:37,273 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 17:34:37,274 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 05:34:27" (1/3) ... [2022-11-25 17:34:37,275 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77600f1c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 05:34:37, skipping insertion in model container [2022-11-25 17:34:37,275 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:34:31" (2/3) ... [2022-11-25 17:34:37,277 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77600f1c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 05:34:37, skipping insertion in model container [2022-11-25 17:34:37,277 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:34:37" (3/3) ... [2022-11-25 17:34:37,279 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--hp--hp100.ko-entry_point.cil.out.i [2022-11-25 17:34:37,303 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 17:34:37,304 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-25 17:34:37,441 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 17:34:37,449 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@25f66e11, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 17:34:37,449 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-25 17:34:37,461 INFO L276 IsEmpty]: Start isEmpty. Operand has 1652 states, 1048 states have (on average 1.3587786259541985) internal successors, (1424), 1102 states have internal predecessors, (1424), 535 states have call successors, (535), 70 states have call predecessors, (535), 69 states have return successors, (528), 512 states have call predecessors, (528), 528 states have call successors, (528) [2022-11-25 17:34:37,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2022-11-25 17:34:37,508 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:34:37,509 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 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] [2022-11-25 17:34:37,510 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 17:34:37,517 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:34:37,517 INFO L85 PathProgramCache]: Analyzing trace with hash 1230881091, now seen corresponding path program 1 times [2022-11-25 17:34:37,528 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:34:37,528 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [450319719] [2022-11-25 17:34:37,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:34:37,529 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:34:38,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:34:38,263 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:34:38,265 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [450319719] [2022-11-25 17:34:38,266 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2022-11-25 17:34:38,267 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [645471750] [2022-11-25 17:34:38,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:34:38,267 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:34:38,267 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a92a35a-2969-4d00-a41d-0fc3a8fddd22/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:34:38,274 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a92a35a-2969-4d00-a41d-0fc3a8fddd22/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 17:34:38,314 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a92a35a-2969-4d00-a41d-0fc3a8fddd22/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-25 17:34:39,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:34:39,347 INFO L263 TraceCheckSpWp]: Trace formula consists of 2193 conjuncts, 1 conjunts are in the unsatisfiable core [2022-11-25 17:34:39,357 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:34:39,399 INFO L134 CoverageAnalysis]: Checked inductivity of 161 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 125 trivial. 0 not checked. [2022-11-25 17:34:39,399 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 17:34:39,399 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [645471750] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:34:39,400 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:34:39,400 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 17:34:39,402 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1706241320] [2022-11-25 17:34:39,403 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:34:39,407 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-25 17:34:39,408 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:34:39,438 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-25 17:34:39,439 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-25 17:34:39,444 INFO L87 Difference]: Start difference. First operand has 1652 states, 1048 states have (on average 1.3587786259541985) internal successors, (1424), 1102 states have internal predecessors, (1424), 535 states have call successors, (535), 70 states have call predecessors, (535), 69 states have return successors, (528), 512 states have call predecessors, (528), 528 states have call successors, (528) Second operand has 2 states, 2 states have (on average 35.5) internal successors, (71), 2 states have internal predecessors, (71), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-11-25 17:34:39,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:34:39,685 INFO L93 Difference]: Finished difference Result 3293 states and 5027 transitions. [2022-11-25 17:34:39,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-25 17:34:39,687 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 35.5) internal successors, (71), 2 states have internal predecessors, (71), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 171 [2022-11-25 17:34:39,687 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:34:39,724 INFO L225 Difference]: With dead ends: 3293 [2022-11-25 17:34:39,724 INFO L226 Difference]: Without dead ends: 1626 [2022-11-25 17:34:39,747 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 170 GetRequests, 170 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-25 17:34:39,751 INFO L413 NwaCegarLoop]: 2469 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2469 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 17:34:39,753 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 2469 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 17:34:39,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1626 states. [2022-11-25 17:34:39,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1626 to 1626. [2022-11-25 17:34:39,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1626 states, 1031 states have (on average 1.3482056256062076) internal successors, (1390), 1075 states have internal predecessors, (1390), 526 states have call successors, (526), 69 states have call predecessors, (526), 68 states have return successors, (525), 509 states have call predecessors, (525), 525 states have call successors, (525) [2022-11-25 17:34:40,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1626 states to 1626 states and 2441 transitions. [2022-11-25 17:34:40,009 INFO L78 Accepts]: Start accepts. Automaton has 1626 states and 2441 transitions. Word has length 171 [2022-11-25 17:34:40,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:34:40,010 INFO L495 AbstractCegarLoop]: Abstraction has 1626 states and 2441 transitions. [2022-11-25 17:34:40,010 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 35.5) internal successors, (71), 2 states have internal predecessors, (71), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-11-25 17:34:40,011 INFO L276 IsEmpty]: Start isEmpty. Operand 1626 states and 2441 transitions. [2022-11-25 17:34:40,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2022-11-25 17:34:40,022 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:34:40,022 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 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] [2022-11-25 17:34:40,039 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a92a35a-2969-4d00-a41d-0fc3a8fddd22/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-25 17:34:40,233 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a92a35a-2969-4d00-a41d-0fc3a8fddd22/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2022-11-25 17:34:40,234 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 17:34:40,234 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:34:40,234 INFO L85 PathProgramCache]: Analyzing trace with hash -1620918068, now seen corresponding path program 1 times [2022-11-25 17:34:40,234 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:34:40,235 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1832292339] [2022-11-25 17:34:40,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:34:40,235 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:34:40,352 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-25 17:34:40,353 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1828231403] [2022-11-25 17:34:40,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:34:40,353 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:34:40,354 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a92a35a-2969-4d00-a41d-0fc3a8fddd22/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:34:40,355 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a92a35a-2969-4d00-a41d-0fc3a8fddd22/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 17:34:40,418 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a92a35a-2969-4d00-a41d-0fc3a8fddd22/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-25 17:34:41,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:34:41,516 INFO L263 TraceCheckSpWp]: Trace formula consists of 2195 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-25 17:34:41,534 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:34:41,867 INFO L134 CoverageAnalysis]: Checked inductivity of 161 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 161 trivial. 0 not checked. [2022-11-25 17:34:41,867 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 17:34:41,867 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:34:41,870 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1832292339] [2022-11-25 17:34:41,870 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-25 17:34:41,870 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1828231403] [2022-11-25 17:34:41,870 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1828231403] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:34:41,871 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:34:41,871 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 17:34:41,871 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2046885790] [2022-11-25 17:34:41,871 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:34:41,873 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 17:34:41,874 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:34:41,875 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 17:34:41,875 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-25 17:34:41,875 INFO L87 Difference]: Start difference. First operand 1626 states and 2441 transitions. Second operand has 5 states, 5 states have (on average 13.2) internal successors, (66), 3 states have internal predecessors, (66), 2 states have call successors, (23), 3 states have call predecessors, (23), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-11-25 17:34:42,217 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:34:42,218 INFO L93 Difference]: Finished difference Result 4849 states and 7292 transitions. [2022-11-25 17:34:42,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-25 17:34:42,219 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 3 states have internal predecessors, (66), 2 states have call successors, (23), 3 states have call predecessors, (23), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 172 [2022-11-25 17:34:42,219 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:34:42,244 INFO L225 Difference]: With dead ends: 4849 [2022-11-25 17:34:42,245 INFO L226 Difference]: Without dead ends: 3245 [2022-11-25 17:34:42,258 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 174 GetRequests, 168 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-25 17:34:42,259 INFO L413 NwaCegarLoop]: 3228 mSDtfsCounter, 2409 mSDsluCounter, 8844 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2413 SdHoareTripleChecker+Valid, 12072 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 17:34:42,260 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2413 Valid, 12072 Invalid, 41 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 17:34:42,265 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3245 states. [2022-11-25 17:34:42,511 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3245 to 3236. [2022-11-25 17:34:42,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3236 states, 2056 states have (on average 1.350194552529183) internal successors, (2776), 2144 states have internal predecessors, (2776), 1043 states have call successors, (1043), 137 states have call predecessors, (1043), 136 states have return successors, (1046), 1010 states have call predecessors, (1046), 1042 states have call successors, (1046) [2022-11-25 17:34:42,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3236 states to 3236 states and 4865 transitions. [2022-11-25 17:34:42,548 INFO L78 Accepts]: Start accepts. Automaton has 3236 states and 4865 transitions. Word has length 172 [2022-11-25 17:34:42,550 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:34:42,551 INFO L495 AbstractCegarLoop]: Abstraction has 3236 states and 4865 transitions. [2022-11-25 17:34:42,551 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 3 states have internal predecessors, (66), 2 states have call successors, (23), 3 states have call predecessors, (23), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-11-25 17:34:42,551 INFO L276 IsEmpty]: Start isEmpty. Operand 3236 states and 4865 transitions. [2022-11-25 17:34:42,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2022-11-25 17:34:42,562 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:34:42,562 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 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] [2022-11-25 17:34:42,584 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a92a35a-2969-4d00-a41d-0fc3a8fddd22/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-25 17:34:42,772 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a92a35a-2969-4d00-a41d-0fc3a8fddd22/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:34:42,773 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 17:34:42,773 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:34:42,773 INFO L85 PathProgramCache]: Analyzing trace with hash -386975751, now seen corresponding path program 1 times [2022-11-25 17:34:42,773 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:34:42,774 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [235695464] [2022-11-25 17:34:42,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:34:42,774 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:34:42,911 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-25 17:34:42,919 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [841503859] [2022-11-25 17:34:42,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:34:42,919 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:34:42,920 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a92a35a-2969-4d00-a41d-0fc3a8fddd22/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:34:42,927 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a92a35a-2969-4d00-a41d-0fc3a8fddd22/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 17:34:42,950 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a92a35a-2969-4d00-a41d-0fc3a8fddd22/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-25 17:34:43,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:34:43,764 INFO L263 TraceCheckSpWp]: Trace formula consists of 2193 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-25 17:34:43,804 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:34:44,053 INFO L134 CoverageAnalysis]: Checked inductivity of 161 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 161 trivial. 0 not checked. [2022-11-25 17:34:44,053 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 17:34:44,054 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:34:44,054 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [235695464] [2022-11-25 17:34:44,054 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-25 17:34:44,054 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [841503859] [2022-11-25 17:34:44,056 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [841503859] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:34:44,056 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:34:44,057 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 17:34:44,057 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [596605147] [2022-11-25 17:34:44,057 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:34:44,059 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 17:34:44,059 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:34:44,060 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 17:34:44,060 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-25 17:34:44,061 INFO L87 Difference]: Start difference. First operand 3236 states and 4865 transitions. Second operand has 5 states, 5 states have (on average 13.0) internal successors, (65), 3 states have internal predecessors, (65), 2 states have call successors, (23), 3 states have call predecessors, (23), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-11-25 17:34:44,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:34:44,545 INFO L93 Difference]: Finished difference Result 9700 states and 14595 transitions. [2022-11-25 17:34:44,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-25 17:34:44,545 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 3 states have internal predecessors, (65), 2 states have call successors, (23), 3 states have call predecessors, (23), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 171 [2022-11-25 17:34:44,548 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:34:44,602 INFO L225 Difference]: With dead ends: 9700 [2022-11-25 17:34:44,602 INFO L226 Difference]: Without dead ends: 6486 [2022-11-25 17:34:44,629 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 173 GetRequests, 167 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-25 17:34:44,634 INFO L413 NwaCegarLoop]: 3291 mSDtfsCounter, 2419 mSDsluCounter, 8984 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2423 SdHoareTripleChecker+Valid, 12275 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 17:34:44,639 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2423 Valid, 12275 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 17:34:44,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6486 states. [2022-11-25 17:34:45,067 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6486 to 6447. [2022-11-25 17:34:45,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6447 states, 4098 states have (on average 1.3518789653489507) internal successors, (5540), 4281 states have internal predecessors, (5540), 2076 states have call successors, (2076), 273 states have call predecessors, (2076), 272 states have return successors, (2091), 2004 states have call predecessors, (2091), 2075 states have call successors, (2091) [2022-11-25 17:34:45,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6447 states to 6447 states and 9707 transitions. [2022-11-25 17:34:45,130 INFO L78 Accepts]: Start accepts. Automaton has 6447 states and 9707 transitions. Word has length 171 [2022-11-25 17:34:45,131 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:34:45,131 INFO L495 AbstractCegarLoop]: Abstraction has 6447 states and 9707 transitions. [2022-11-25 17:34:45,131 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 3 states have internal predecessors, (65), 2 states have call successors, (23), 3 states have call predecessors, (23), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-11-25 17:34:45,131 INFO L276 IsEmpty]: Start isEmpty. Operand 6447 states and 9707 transitions. [2022-11-25 17:34:45,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2022-11-25 17:34:45,142 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:34:45,143 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 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] [2022-11-25 17:34:45,158 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a92a35a-2969-4d00-a41d-0fc3a8fddd22/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-25 17:34:45,353 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a92a35a-2969-4d00-a41d-0fc3a8fddd22/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:34:45,353 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 17:34:45,353 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:34:45,354 INFO L85 PathProgramCache]: Analyzing trace with hash 293847414, now seen corresponding path program 1 times [2022-11-25 17:34:45,354 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:34:45,354 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1818389682] [2022-11-25 17:34:45,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:34:45,354 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:34:45,548 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-25 17:34:45,548 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [295457207] [2022-11-25 17:34:45,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:34:45,548 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:34:45,549 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a92a35a-2969-4d00-a41d-0fc3a8fddd22/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:34:45,550 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a92a35a-2969-4d00-a41d-0fc3a8fddd22/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 17:34:45,579 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a92a35a-2969-4d00-a41d-0fc3a8fddd22/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-25 17:34:46,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:34:46,482 INFO L263 TraceCheckSpWp]: Trace formula consists of 2197 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-25 17:34:46,494 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:34:46,735 INFO L134 CoverageAnalysis]: Checked inductivity of 161 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 161 trivial. 0 not checked. [2022-11-25 17:34:46,735 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 17:34:46,736 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:34:46,736 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1818389682] [2022-11-25 17:34:46,736 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-25 17:34:46,736 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [295457207] [2022-11-25 17:34:46,737 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [295457207] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:34:46,737 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:34:46,737 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 17:34:46,737 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [559956655] [2022-11-25 17:34:46,737 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:34:46,739 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 17:34:46,739 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:34:46,740 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 17:34:46,740 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-25 17:34:46,740 INFO L87 Difference]: Start difference. First operand 6447 states and 9707 transitions. Second operand has 5 states, 5 states have (on average 13.4) internal successors, (67), 3 states have internal predecessors, (67), 2 states have call successors, (23), 3 states have call predecessors, (23), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-11-25 17:34:47,523 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:34:47,524 INFO L93 Difference]: Finished difference Result 19375 states and 29181 transitions. [2022-11-25 17:34:47,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-25 17:34:47,525 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 3 states have internal predecessors, (67), 2 states have call successors, (23), 3 states have call predecessors, (23), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 173 [2022-11-25 17:34:47,526 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:34:47,654 INFO L225 Difference]: With dead ends: 19375 [2022-11-25 17:34:47,654 INFO L226 Difference]: Without dead ends: 12950 [2022-11-25 17:34:47,701 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 175 GetRequests, 169 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-25 17:34:47,702 INFO L413 NwaCegarLoop]: 2959 mSDtfsCounter, 2408 mSDsluCounter, 8306 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2412 SdHoareTripleChecker+Valid, 11265 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 17:34:47,702 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2412 Valid, 11265 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 17:34:47,721 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12950 states. [2022-11-25 17:34:48,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12950 to 12885. [2022-11-25 17:34:48,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12885 states, 8198 states have (on average 1.3522810441571116) internal successors, (11086), 8562 states have internal predecessors, (11086), 4141 states have call successors, (4141), 546 states have call predecessors, (4141), 545 states have return successors, (4188), 4000 states have call predecessors, (4188), 4140 states have call successors, (4188) [2022-11-25 17:34:48,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12885 states to 12885 states and 19415 transitions. [2022-11-25 17:34:48,833 INFO L78 Accepts]: Start accepts. Automaton has 12885 states and 19415 transitions. Word has length 173 [2022-11-25 17:34:48,834 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:34:48,834 INFO L495 AbstractCegarLoop]: Abstraction has 12885 states and 19415 transitions. [2022-11-25 17:34:48,835 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 3 states have internal predecessors, (67), 2 states have call successors, (23), 3 states have call predecessors, (23), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-11-25 17:34:48,835 INFO L276 IsEmpty]: Start isEmpty. Operand 12885 states and 19415 transitions. [2022-11-25 17:34:48,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2022-11-25 17:34:48,850 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:34:48,851 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:34:48,867 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a92a35a-2969-4d00-a41d-0fc3a8fddd22/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-25 17:34:49,062 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a92a35a-2969-4d00-a41d-0fc3a8fddd22/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:34:49,062 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 17:34:49,062 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:34:49,062 INFO L85 PathProgramCache]: Analyzing trace with hash 1034306857, now seen corresponding path program 1 times [2022-11-25 17:34:49,063 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:34:49,063 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1273124027] [2022-11-25 17:34:49,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:34:49,063 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:34:49,153 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-25 17:34:49,153 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1170016500] [2022-11-25 17:34:49,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:34:49,154 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:34:49,154 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a92a35a-2969-4d00-a41d-0fc3a8fddd22/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:34:49,155 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a92a35a-2969-4d00-a41d-0fc3a8fddd22/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 17:34:49,182 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a92a35a-2969-4d00-a41d-0fc3a8fddd22/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-25 17:34:50,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:34:50,229 INFO L263 TraceCheckSpWp]: Trace formula consists of 2199 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-25 17:34:50,236 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:34:50,493 INFO L134 CoverageAnalysis]: Checked inductivity of 161 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 161 trivial. 0 not checked. [2022-11-25 17:34:50,493 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 17:34:50,494 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:34:50,494 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1273124027] [2022-11-25 17:34:50,494 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-25 17:34:50,494 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1170016500] [2022-11-25 17:34:50,494 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1170016500] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:34:50,494 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:34:50,495 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 17:34:50,495 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1204155616] [2022-11-25 17:34:50,495 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:34:50,495 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 17:34:50,496 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:34:50,496 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 17:34:50,496 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-25 17:34:50,497 INFO L87 Difference]: Start difference. First operand 12885 states and 19415 transitions. Second operand has 5 states, 5 states have (on average 13.6) internal successors, (68), 3 states have internal predecessors, (68), 2 states have call successors, (23), 3 states have call predecessors, (23), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-11-25 17:34:51,914 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:34:51,914 INFO L93 Difference]: Finished difference Result 38603 states and 58177 transitions. [2022-11-25 17:34:51,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-25 17:34:51,915 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 3 states have internal predecessors, (68), 2 states have call successors, (23), 3 states have call predecessors, (23), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 174 [2022-11-25 17:34:51,916 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:34:52,262 INFO L225 Difference]: With dead ends: 38603 [2022-11-25 17:34:52,263 INFO L226 Difference]: Without dead ends: 25740 [2022-11-25 17:34:52,333 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 176 GetRequests, 170 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-25 17:34:52,334 INFO L413 NwaCegarLoop]: 2959 mSDtfsCounter, 2407 mSDsluCounter, 8306 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2411 SdHoareTripleChecker+Valid, 11265 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 17:34:52,334 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2411 Valid, 11265 Invalid, 41 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 17:34:52,364 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25740 states. [2022-11-25 17:34:54,148 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25740 to 25604. [2022-11-25 17:34:54,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25604 states, 16293 states have (on average 1.3527281654698338) internal successors, (22040), 17011 states have internal predecessors, (22040), 8224 states have call successors, (8224), 1087 states have call predecessors, (8224), 1086 states have return successors, (8351), 7947 states have call predecessors, (8351), 8223 states have call successors, (8351) [2022-11-25 17:34:54,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25604 states to 25604 states and 38615 transitions. [2022-11-25 17:34:54,520 INFO L78 Accepts]: Start accepts. Automaton has 25604 states and 38615 transitions. Word has length 174 [2022-11-25 17:34:54,521 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:34:54,521 INFO L495 AbstractCegarLoop]: Abstraction has 25604 states and 38615 transitions. [2022-11-25 17:34:54,521 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 3 states have internal predecessors, (68), 2 states have call successors, (23), 3 states have call predecessors, (23), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-11-25 17:34:54,522 INFO L276 IsEmpty]: Start isEmpty. Operand 25604 states and 38615 transitions. [2022-11-25 17:34:54,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2022-11-25 17:34:54,553 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:34:54,553 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 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] [2022-11-25 17:34:54,567 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a92a35a-2969-4d00-a41d-0fc3a8fddd22/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-25 17:34:54,766 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a92a35a-2969-4d00-a41d-0fc3a8fddd22/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:34:54,767 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 17:34:54,768 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:34:54,769 INFO L85 PathProgramCache]: Analyzing trace with hash -695910732, now seen corresponding path program 1 times [2022-11-25 17:34:54,769 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:34:54,770 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1039633603] [2022-11-25 17:34:54,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:34:54,770 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:34:54,974 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-25 17:34:54,974 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2090304444] [2022-11-25 17:34:54,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:34:54,975 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:34:54,975 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a92a35a-2969-4d00-a41d-0fc3a8fddd22/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:34:54,978 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a92a35a-2969-4d00-a41d-0fc3a8fddd22/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 17:34:55,010 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a92a35a-2969-4d00-a41d-0fc3a8fddd22/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-25 17:34:55,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:34:55,891 INFO L263 TraceCheckSpWp]: Trace formula consists of 2258 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-25 17:34:55,899 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:34:55,973 INFO L134 CoverageAnalysis]: Checked inductivity of 169 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 161 trivial. 0 not checked. [2022-11-25 17:34:55,974 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 17:34:55,974 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:34:55,974 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1039633603] [2022-11-25 17:34:55,974 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-25 17:34:55,974 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2090304444] [2022-11-25 17:34:55,975 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2090304444] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:34:55,975 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:34:55,975 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-25 17:34:55,975 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2021074216] [2022-11-25 17:34:55,976 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:34:55,977 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-25 17:34:55,977 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:34:55,978 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-25 17:34:55,978 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-25 17:34:55,978 INFO L87 Difference]: Start difference. First operand 25604 states and 38615 transitions. Second operand has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 5 states have internal predecessors, (76), 3 states have call successors, (24), 3 states have call predecessors, (24), 3 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) [2022-11-25 17:34:58,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:34:58,126 INFO L93 Difference]: Finished difference Result 64150 states and 96699 transitions. [2022-11-25 17:34:58,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-25 17:34:58,127 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 5 states have internal predecessors, (76), 3 states have call successors, (24), 3 states have call predecessors, (24), 3 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) Word has length 184 [2022-11-25 17:34:58,127 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:34:58,391 INFO L225 Difference]: With dead ends: 64150 [2022-11-25 17:34:58,391 INFO L226 Difference]: Without dead ends: 38568 [2022-11-25 17:34:58,527 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 191 GetRequests, 179 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182 [2022-11-25 17:34:58,528 INFO L413 NwaCegarLoop]: 3530 mSDtfsCounter, 2461 mSDsluCounter, 16510 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2465 SdHoareTripleChecker+Valid, 20040 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 76 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 17:34:58,528 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2465 Valid, 20040 Invalid, 79 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3 Valid, 76 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 17:34:58,572 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38568 states. [2022-11-25 17:35:01,581 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38568 to 38219. [2022-11-25 17:35:01,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38219 states, 24300 states have (on average 1.3531687242798354) internal successors, (32882), 25376 states have internal predecessors, (32882), 12295 states have call successors, (12295), 1616 states have call predecessors, (12295), 1623 states have return successors, (12522), 11886 states have call predecessors, (12522), 12294 states have call successors, (12522) [2022-11-25 17:35:02,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38219 states to 38219 states and 57699 transitions. [2022-11-25 17:35:02,113 INFO L78 Accepts]: Start accepts. Automaton has 38219 states and 57699 transitions. Word has length 184 [2022-11-25 17:35:02,114 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:35:02,114 INFO L495 AbstractCegarLoop]: Abstraction has 38219 states and 57699 transitions. [2022-11-25 17:35:02,114 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 5 states have internal predecessors, (76), 3 states have call successors, (24), 3 states have call predecessors, (24), 3 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) [2022-11-25 17:35:02,114 INFO L276 IsEmpty]: Start isEmpty. Operand 38219 states and 57699 transitions. [2022-11-25 17:35:02,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2022-11-25 17:35:02,142 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:35:02,142 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 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] [2022-11-25 17:35:02,153 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a92a35a-2969-4d00-a41d-0fc3a8fddd22/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-11-25 17:35:02,354 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a92a35a-2969-4d00-a41d-0fc3a8fddd22/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:35:02,354 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 17:35:02,354 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:35:02,355 INFO L85 PathProgramCache]: Analyzing trace with hash -1719604644, now seen corresponding path program 1 times [2022-11-25 17:35:02,355 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:35:02,355 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2122483195] [2022-11-25 17:35:02,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:35:02,355 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:35:02,457 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-25 17:35:02,458 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [811018733] [2022-11-25 17:35:02,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:35:02,458 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:35:02,459 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a92a35a-2969-4d00-a41d-0fc3a8fddd22/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:35:02,460 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a92a35a-2969-4d00-a41d-0fc3a8fddd22/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 17:35:02,494 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a92a35a-2969-4d00-a41d-0fc3a8fddd22/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-11-25 17:35:03,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:35:03,288 INFO L263 TraceCheckSpWp]: Trace formula consists of 2260 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-25 17:35:03,294 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:35:03,361 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 161 trivial. 0 not checked. [2022-11-25 17:35:03,361 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 17:35:03,361 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:35:03,361 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2122483195] [2022-11-25 17:35:03,361 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-25 17:35:03,362 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [811018733] [2022-11-25 17:35:03,362 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [811018733] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:35:03,362 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:35:03,362 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-25 17:35:03,362 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [926992224] [2022-11-25 17:35:03,363 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:35:03,363 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-25 17:35:03,364 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:35:03,365 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-25 17:35:03,365 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-25 17:35:03,365 INFO L87 Difference]: Start difference. First operand 38219 states and 57699 transitions. Second operand has 7 states, 7 states have (on average 11.0) internal successors, (77), 5 states have internal predecessors, (77), 3 states have call successors, (24), 3 states have call predecessors, (24), 3 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) [2022-11-25 17:35:05,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:35:05,844 INFO L93 Difference]: Finished difference Result 89521 states and 135017 transitions. [2022-11-25 17:35:05,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-25 17:35:05,845 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.0) internal successors, (77), 5 states have internal predecessors, (77), 3 states have call successors, (24), 3 states have call predecessors, (24), 3 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) Word has length 185 [2022-11-25 17:35:05,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:35:06,465 INFO L225 Difference]: With dead ends: 89521 [2022-11-25 17:35:06,465 INFO L226 Difference]: Without dead ends: 51324 [2022-11-25 17:35:06,660 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 192 GetRequests, 180 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182 [2022-11-25 17:35:06,662 INFO L413 NwaCegarLoop]: 3536 mSDtfsCounter, 2461 mSDsluCounter, 16534 mSDsCounter, 0 mSdLazyCounter, 77 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2465 SdHoareTripleChecker+Valid, 20070 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 77 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 17:35:06,662 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2465 Valid, 20070 Invalid, 80 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3 Valid, 77 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 17:35:06,710 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51324 states. [2022-11-25 17:35:09,614 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51324 to 50962. [2022-11-25 17:35:09,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50962 states, 32403 states have (on average 1.3528377002129433) internal successors, (43836), 33861 states have internal predecessors, (43836), 16374 states have call successors, (16374), 2153 states have call predecessors, (16374), 2184 states have return successors, (16717), 15825 states have call predecessors, (16717), 16373 states have call successors, (16717) [2022-11-25 17:35:10,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50962 states to 50962 states and 76927 transitions. [2022-11-25 17:35:10,365 INFO L78 Accepts]: Start accepts. Automaton has 50962 states and 76927 transitions. Word has length 185 [2022-11-25 17:35:10,365 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:35:10,366 INFO L495 AbstractCegarLoop]: Abstraction has 50962 states and 76927 transitions. [2022-11-25 17:35:10,366 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.0) internal successors, (77), 5 states have internal predecessors, (77), 3 states have call successors, (24), 3 states have call predecessors, (24), 3 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) [2022-11-25 17:35:10,366 INFO L276 IsEmpty]: Start isEmpty. Operand 50962 states and 76927 transitions. [2022-11-25 17:35:10,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2022-11-25 17:35:10,413 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:35:10,413 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 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] [2022-11-25 17:35:10,432 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a92a35a-2969-4d00-a41d-0fc3a8fddd22/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-11-25 17:35:10,626 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a92a35a-2969-4d00-a41d-0fc3a8fddd22/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2022-11-25 17:35:10,626 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 17:35:10,626 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:35:10,626 INFO L85 PathProgramCache]: Analyzing trace with hash -1947413619, now seen corresponding path program 1 times [2022-11-25 17:35:10,626 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:35:10,627 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1909497008] [2022-11-25 17:35:10,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:35:10,627 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:35:10,725 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-25 17:35:10,726 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1495271775] [2022-11-25 17:35:10,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:35:10,726 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:35:10,726 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a92a35a-2969-4d00-a41d-0fc3a8fddd22/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:35:10,727 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a92a35a-2969-4d00-a41d-0fc3a8fddd22/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 17:35:10,750 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a92a35a-2969-4d00-a41d-0fc3a8fddd22/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-11-25 17:35:11,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:35:11,625 INFO L263 TraceCheckSpWp]: Trace formula consists of 2262 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-25 17:35:11,630 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:35:11,697 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 161 trivial. 0 not checked. [2022-11-25 17:35:11,697 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 17:35:11,697 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:35:11,698 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1909497008] [2022-11-25 17:35:11,698 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-25 17:35:11,698 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1495271775] [2022-11-25 17:35:11,698 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1495271775] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:35:11,698 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:35:11,699 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-25 17:35:11,699 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [195784686] [2022-11-25 17:35:11,699 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:35:11,700 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-25 17:35:11,700 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:35:11,700 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-25 17:35:11,700 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-25 17:35:11,701 INFO L87 Difference]: Start difference. First operand 50962 states and 76927 transitions. Second operand has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 5 states have internal predecessors, (78), 3 states have call successors, (24), 3 states have call predecessors, (24), 3 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) [2022-11-25 17:35:14,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:35:14,516 INFO L93 Difference]: Finished difference Result 114988 states and 173447 transitions. [2022-11-25 17:35:14,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-25 17:35:14,517 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 5 states have internal predecessors, (78), 3 states have call successors, (24), 3 states have call predecessors, (24), 3 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) Word has length 186 [2022-11-25 17:35:14,517 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:35:14,905 INFO L225 Difference]: With dead ends: 114988 [2022-11-25 17:35:14,905 INFO L226 Difference]: Without dead ends: 64048 [2022-11-25 17:35:15,123 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 193 GetRequests, 181 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182 [2022-11-25 17:35:15,124 INFO L413 NwaCegarLoop]: 3542 mSDtfsCounter, 2461 mSDsluCounter, 16558 mSDsCounter, 0 mSdLazyCounter, 77 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2465 SdHoareTripleChecker+Valid, 20100 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 77 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 17:35:15,125 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2465 Valid, 20100 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 77 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 17:35:15,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64048 states. [2022-11-25 17:35:18,260 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64048 to 51000. [2022-11-25 17:35:18,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51000 states, 32431 states have (on average 1.3525330702106009) internal successors, (43864), 33891 states have internal predecessors, (43864), 16374 states have call successors, (16374), 2153 states have call predecessors, (16374), 2194 states have return successors, (16730), 15833 states have call predecessors, (16730), 16373 states have call successors, (16730) [2022-11-25 17:35:18,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51000 states to 51000 states and 76968 transitions. [2022-11-25 17:35:18,698 INFO L78 Accepts]: Start accepts. Automaton has 51000 states and 76968 transitions. Word has length 186 [2022-11-25 17:35:18,701 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:35:18,702 INFO L495 AbstractCegarLoop]: Abstraction has 51000 states and 76968 transitions. [2022-11-25 17:35:18,702 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 5 states have internal predecessors, (78), 3 states have call successors, (24), 3 states have call predecessors, (24), 3 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) [2022-11-25 17:35:18,702 INFO L276 IsEmpty]: Start isEmpty. Operand 51000 states and 76968 transitions. [2022-11-25 17:35:18,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2022-11-25 17:35:18,748 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:35:18,748 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 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] [2022-11-25 17:35:18,768 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a92a35a-2969-4d00-a41d-0fc3a8fddd22/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-11-25 17:35:18,960 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a92a35a-2969-4d00-a41d-0fc3a8fddd22/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:35:18,960 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 17:35:18,960 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:35:18,960 INFO L85 PathProgramCache]: Analyzing trace with hash 1022373973, now seen corresponding path program 1 times [2022-11-25 17:35:18,961 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:35:18,961 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [137867476] [2022-11-25 17:35:18,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:35:18,961 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:35:19,054 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-25 17:35:19,054 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [655919296] [2022-11-25 17:35:19,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:35:19,054 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:35:19,055 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a92a35a-2969-4d00-a41d-0fc3a8fddd22/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:35:19,056 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a92a35a-2969-4d00-a41d-0fc3a8fddd22/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 17:35:19,081 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a92a35a-2969-4d00-a41d-0fc3a8fddd22/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-11-25 17:35:19,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:35:20,009 INFO L263 TraceCheckSpWp]: Trace formula consists of 2264 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-25 17:35:20,015 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:35:20,082 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 161 trivial. 0 not checked. [2022-11-25 17:35:20,082 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 17:35:20,082 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:35:20,083 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [137867476] [2022-11-25 17:35:20,083 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-25 17:35:20,083 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [655919296] [2022-11-25 17:35:20,083 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [655919296] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:35:20,083 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:35:20,084 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-25 17:35:20,086 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1714469377] [2022-11-25 17:35:20,087 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:35:20,087 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-25 17:35:20,087 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:35:20,088 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-25 17:35:20,088 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-25 17:35:20,089 INFO L87 Difference]: Start difference. First operand 51000 states and 76968 transitions. Second operand has 7 states, 7 states have (on average 11.285714285714286) internal successors, (79), 5 states have internal predecessors, (79), 3 states have call successors, (24), 3 states have call predecessors, (24), 3 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) [2022-11-25 17:35:23,228 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:35:23,229 INFO L93 Difference]: Finished difference Result 115042 states and 173504 transitions. [2022-11-25 17:35:23,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-25 17:35:23,229 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.285714285714286) internal successors, (79), 5 states have internal predecessors, (79), 3 states have call successors, (24), 3 states have call predecessors, (24), 3 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) Word has length 187 [2022-11-25 17:35:23,230 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:35:23,613 INFO L225 Difference]: With dead ends: 115042 [2022-11-25 17:35:23,613 INFO L226 Difference]: Without dead ends: 64064 [2022-11-25 17:35:23,886 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 194 GetRequests, 182 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182 [2022-11-25 17:35:23,887 INFO L413 NwaCegarLoop]: 3536 mSDtfsCounter, 2461 mSDsluCounter, 16534 mSDsCounter, 0 mSdLazyCounter, 77 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2465 SdHoareTripleChecker+Valid, 20070 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 77 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 17:35:23,888 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2465 Valid, 20070 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 77 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 17:35:23,957 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64064 states. [2022-11-25 17:35:26,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64064 to 51029. [2022-11-25 17:35:26,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51029 states, 32453 states have (on average 1.3522940868332665) internal successors, (43886), 33912 states have internal predecessors, (43886), 16374 states have call successors, (16374), 2153 states have call predecessors, (16374), 2201 states have return successors, (16737), 15841 states have call predecessors, (16737), 16373 states have call successors, (16737) [2022-11-25 17:35:27,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51029 states to 51029 states and 76997 transitions. [2022-11-25 17:35:27,838 INFO L78 Accepts]: Start accepts. Automaton has 51029 states and 76997 transitions. Word has length 187 [2022-11-25 17:35:27,848 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:35:27,848 INFO L495 AbstractCegarLoop]: Abstraction has 51029 states and 76997 transitions. [2022-11-25 17:35:27,848 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.285714285714286) internal successors, (79), 5 states have internal predecessors, (79), 3 states have call successors, (24), 3 states have call predecessors, (24), 3 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) [2022-11-25 17:35:27,849 INFO L276 IsEmpty]: Start isEmpty. Operand 51029 states and 76997 transitions. [2022-11-25 17:35:27,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2022-11-25 17:35:27,883 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:35:27,884 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 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] [2022-11-25 17:35:27,902 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a92a35a-2969-4d00-a41d-0fc3a8fddd22/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-11-25 17:35:28,095 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a92a35a-2969-4d00-a41d-0fc3a8fddd22/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:35:28,095 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 17:35:28,097 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:35:28,097 INFO L85 PathProgramCache]: Analyzing trace with hash -765644276, now seen corresponding path program 1 times [2022-11-25 17:35:28,097 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:35:28,097 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1989667067] [2022-11-25 17:35:28,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:35:28,097 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:35:28,225 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-25 17:35:28,225 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1931020123] [2022-11-25 17:35:28,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:35:28,226 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:35:28,226 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a92a35a-2969-4d00-a41d-0fc3a8fddd22/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:35:28,227 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a92a35a-2969-4d00-a41d-0fc3a8fddd22/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 17:35:28,235 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a92a35a-2969-4d00-a41d-0fc3a8fddd22/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-11-25 17:35:29,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:35:29,135 INFO L263 TraceCheckSpWp]: Trace formula consists of 2266 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-25 17:35:29,143 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:35:29,484 INFO L134 CoverageAnalysis]: Checked inductivity of 170 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 161 trivial. 0 not checked. [2022-11-25 17:35:29,484 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 17:35:29,895 INFO L134 CoverageAnalysis]: Checked inductivity of 170 backedges. 4 proven. 5 refuted. 0 times theorem prover too weak. 161 trivial. 0 not checked. [2022-11-25 17:35:29,896 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:35:29,896 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1989667067] [2022-11-25 17:35:29,896 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-25 17:35:29,896 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1931020123] [2022-11-25 17:35:29,897 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1931020123] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 17:35:29,897 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-25 17:35:29,897 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 9] total 11 [2022-11-25 17:35:29,899 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1352635574] [2022-11-25 17:35:29,899 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-25 17:35:29,901 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-25 17:35:29,901 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:35:29,902 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-25 17:35:29,902 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2022-11-25 17:35:29,903 INFO L87 Difference]: Start difference. First operand 51029 states and 76997 transitions. Second operand has 11 states, 11 states have (on average 9.818181818181818) internal successors, (108), 9 states have internal predecessors, (108), 4 states have call successors, (42), 4 states have call predecessors, (42), 5 states have return successors, (36), 4 states have call predecessors, (36), 3 states have call successors, (36) [2022-11-25 17:35:42,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:35:42,468 INFO L93 Difference]: Finished difference Result 128241 states and 193371 transitions. [2022-11-25 17:35:42,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-11-25 17:35:42,469 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 9.818181818181818) internal successors, (108), 9 states have internal predecessors, (108), 4 states have call successors, (42), 4 states have call predecessors, (42), 5 states have return successors, (36), 4 states have call predecessors, (36), 3 states have call successors, (36) Word has length 187 [2022-11-25 17:35:42,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:35:42,914 INFO L225 Difference]: With dead ends: 128241 [2022-11-25 17:35:42,914 INFO L226 Difference]: Without dead ends: 77234 [2022-11-25 17:35:43,389 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 401 GetRequests, 360 SyntacticMatches, 5 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 383 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=304, Invalid=1102, Unknown=0, NotChecked=0, Total=1406 [2022-11-25 17:35:43,389 INFO L413 NwaCegarLoop]: 4759 mSDtfsCounter, 7409 mSDsluCounter, 29518 mSDsCounter, 0 mSdLazyCounter, 6155 mSolverCounterSat, 2146 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7423 SdHoareTripleChecker+Valid, 34277 SdHoareTripleChecker+Invalid, 8301 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 2146 IncrementalHoareTripleChecker+Valid, 6155 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.5s IncrementalHoareTripleChecker+Time [2022-11-25 17:35:43,390 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7423 Valid, 34277 Invalid, 8301 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [2146 Valid, 6155 Invalid, 0 Unknown, 0 Unchecked, 8.5s Time] [2022-11-25 17:35:43,440 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77234 states. [2022-11-25 17:35:46,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77234 to 51317. [2022-11-25 17:35:46,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51317 states, 32633 states have (on average 1.35084117304569) internal successors, (44082), 34108 states have internal predecessors, (44082), 16470 states have call successors, (16470), 2153 states have call predecessors, (16470), 2213 states have return successors, (16861), 15933 states have call predecessors, (16861), 16469 states have call successors, (16861) [2022-11-25 17:35:46,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51317 states to 51317 states and 77413 transitions. [2022-11-25 17:35:46,948 INFO L78 Accepts]: Start accepts. Automaton has 51317 states and 77413 transitions. Word has length 187 [2022-11-25 17:35:46,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:35:46,949 INFO L495 AbstractCegarLoop]: Abstraction has 51317 states and 77413 transitions. [2022-11-25 17:35:46,949 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 9.818181818181818) internal successors, (108), 9 states have internal predecessors, (108), 4 states have call successors, (42), 4 states have call predecessors, (42), 5 states have return successors, (36), 4 states have call predecessors, (36), 3 states have call successors, (36) [2022-11-25 17:35:46,949 INFO L276 IsEmpty]: Start isEmpty. Operand 51317 states and 77413 transitions. [2022-11-25 17:35:46,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2022-11-25 17:35:46,984 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:35:46,984 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 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] [2022-11-25 17:35:46,999 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a92a35a-2969-4d00-a41d-0fc3a8fddd22/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-11-25 17:35:47,195 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a92a35a-2969-4d00-a41d-0fc3a8fddd22/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-11-25 17:35:47,195 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 17:35:47,196 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:35:47,196 INFO L85 PathProgramCache]: Analyzing trace with hash -1365340739, now seen corresponding path program 1 times [2022-11-25 17:35:47,196 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:35:47,196 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [686271386] [2022-11-25 17:35:47,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:35:47,196 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:35:47,337 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-25 17:35:47,337 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [36660739] [2022-11-25 17:35:47,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:35:47,338 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:35:47,338 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a92a35a-2969-4d00-a41d-0fc3a8fddd22/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:35:47,339 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a92a35a-2969-4d00-a41d-0fc3a8fddd22/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 17:35:47,378 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a92a35a-2969-4d00-a41d-0fc3a8fddd22/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-11-25 17:35:48,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:35:48,277 INFO L263 TraceCheckSpWp]: Trace formula consists of 2268 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-25 17:35:48,283 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:35:48,598 INFO L134 CoverageAnalysis]: Checked inductivity of 170 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 161 trivial. 0 not checked. [2022-11-25 17:35:48,599 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 17:35:48,915 INFO L134 CoverageAnalysis]: Checked inductivity of 170 backedges. 4 proven. 5 refuted. 0 times theorem prover too weak. 161 trivial. 0 not checked. [2022-11-25 17:35:48,916 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:35:48,916 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [686271386] [2022-11-25 17:35:48,916 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-25 17:35:48,916 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [36660739] [2022-11-25 17:35:48,916 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [36660739] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 17:35:48,917 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-25 17:35:48,917 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 9] total 11 [2022-11-25 17:35:48,917 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1481424731] [2022-11-25 17:35:48,917 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-25 17:35:48,918 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-25 17:35:48,918 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:35:48,919 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-25 17:35:48,919 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2022-11-25 17:35:48,919 INFO L87 Difference]: Start difference. First operand 51317 states and 77413 transitions. Second operand has 11 states, 11 states have (on average 9.909090909090908) internal successors, (109), 9 states have internal predecessors, (109), 4 states have call successors, (42), 4 states have call predecessors, (42), 5 states have return successors, (36), 4 states have call predecessors, (36), 3 states have call successors, (36)