./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-usb-pegasus.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2329fc70 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_8aec296c-b071-474f-a22c-5008d2460733/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aec296c-b071-474f-a22c-5008d2460733/bin/utaipan-gh47qXpMRh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aec296c-b071-474f-a22c-5008d2460733/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aec296c-b071-474f-a22c-5008d2460733/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-usb-pegasus.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aec296c-b071-474f-a22c-5008d2460733/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aec296c-b071-474f-a22c-5008d2460733/bin/utaipan-gh47qXpMRh --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash c247f7785da4bad35b227af25ef3ffc26bc077e1b05f1520f2d707a8c759410c --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-14 09:45:04,719 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 09:45:04,721 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 09:45:04,739 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 09:45:04,740 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 09:45:04,740 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 09:45:04,742 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 09:45:04,743 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 09:45:04,745 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 09:45:04,746 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 09:45:04,746 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 09:45:04,747 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 09:45:04,748 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 09:45:04,749 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 09:45:04,750 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 09:45:04,751 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 09:45:04,751 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 09:45:04,752 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 09:45:04,754 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 09:45:04,755 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 09:45:04,756 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 09:45:04,758 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 09:45:04,759 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 09:45:04,759 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 09:45:04,763 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 09:45:04,763 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 09:45:04,763 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 09:45:04,764 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 09:45:04,765 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 09:45:04,765 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 09:45:04,766 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 09:45:04,766 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 09:45:04,767 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 09:45:04,768 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 09:45:04,769 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 09:45:04,769 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 09:45:04,769 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 09:45:04,769 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 09:45:04,770 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 09:45:04,770 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 09:45:04,771 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 09:45:04,772 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aec296c-b071-474f-a22c-5008d2460733/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-12-14 09:45:04,792 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 09:45:04,792 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 09:45:04,793 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 09:45:04,793 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 09:45:04,794 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 09:45:04,794 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 09:45:04,794 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 09:45:04,794 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 09:45:04,794 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 09:45:04,794 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 09:45:04,795 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 09:45:04,795 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 09:45:04,795 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 09:45:04,795 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 09:45:04,795 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 09:45:04,796 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 09:45:04,796 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 09:45:04,796 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 09:45:04,797 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 09:45:04,797 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 09:45:04,797 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 09:45:04,797 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 09:45:04,797 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 09:45:04,798 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 09:45:04,798 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 09:45:04,798 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 09:45:04,798 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 09:45:04,798 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 09:45:04,798 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 09:45:04,799 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 09:45:04,799 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 09:45:04,799 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 09:45:04,799 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 09:45:04,799 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 09:45:04,800 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 09:45:04,800 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 09:45:04,800 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 09:45:04,800 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 09:45:04,800 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aec296c-b071-474f-a22c-5008d2460733/bin/utaipan-gh47qXpMRh/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aec296c-b071-474f-a22c-5008d2460733/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c247f7785da4bad35b227af25ef3ffc26bc077e1b05f1520f2d707a8c759410c [2022-12-14 09:45:05,011 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 09:45:05,030 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 09:45:05,032 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 09:45:05,033 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 09:45:05,034 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 09:45:05,035 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aec296c-b071-474f-a22c-5008d2460733/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-usb-pegasus.cil.i [2022-12-14 09:45:07,660 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 09:45:08,037 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 09:45:08,038 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aec296c-b071-474f-a22c-5008d2460733/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-usb-pegasus.cil.i [2022-12-14 09:45:08,078 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aec296c-b071-474f-a22c-5008d2460733/bin/utaipan-gh47qXpMRh/data/81ff4045e/01313f8dc4e4413cb43563baf2c12467/FLAGf7e12236c [2022-12-14 09:45:08,091 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aec296c-b071-474f-a22c-5008d2460733/bin/utaipan-gh47qXpMRh/data/81ff4045e/01313f8dc4e4413cb43563baf2c12467 [2022-12-14 09:45:08,093 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 09:45:08,095 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 09:45:08,096 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 09:45:08,096 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 09:45:08,099 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 09:45:08,100 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 09:45:08" (1/1) ... [2022-12-14 09:45:08,101 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@67de7117 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:45:08, skipping insertion in model container [2022-12-14 09:45:08,101 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 09:45:08" (1/1) ... [2022-12-14 09:45:08,107 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 09:45:08,186 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 09:45:08,694 WARN L623 FunctionHandler]: Unknown extern function queue_delayed_work_on [2022-12-14 09:45:08,731 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 09:45:08,748 WARN L623 FunctionHandler]: Unknown extern function __netdev_alloc_skb [2022-12-14 09:45:08,789 WARN L623 FunctionHandler]: Unknown extern function netpoll_trap [2022-12-14 09:45:08,790 WARN L623 FunctionHandler]: Unknown extern function __netif_schedule [2022-12-14 09:45:08,799 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-12-14 09:45:08,801 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 09:45:08,863 WARN L623 FunctionHandler]: Unknown extern function __tasklet_schedule [2022-12-14 09:45:08,996 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 09:45:08,996 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 09:45:08,997 WARN L623 FunctionHandler]: Unknown extern function usb_free_urb [2022-12-14 09:45:09,001 WARN L623 FunctionHandler]: Unknown extern function usb_control_msg [2022-12-14 09:45:09,003 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-12-14 09:45:09,007 WARN L623 FunctionHandler]: Unknown extern function usb_control_msg [2022-12-14 09:45:09,009 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-12-14 09:45:09,014 WARN L623 FunctionHandler]: Unknown extern function usb_control_msg [2022-12-14 09:45:09,017 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-12-14 09:45:09,023 WARN L623 FunctionHandler]: Unknown extern function usb_alloc_urb [2022-12-14 09:45:09,024 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 09:45:09,026 WARN L623 FunctionHandler]: Unknown extern function usb_submit_urb [2022-12-14 09:45:09,026 WARN L623 FunctionHandler]: Unknown extern function netif_device_detach [2022-12-14 09:45:09,027 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 09:45:09,039 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-12-14 09:45:09,060 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 09:45:09,088 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-12-14 09:45:09,089 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 09:45:09,091 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-12-14 09:45:09,092 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-12-14 09:45:09,094 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-12-14 09:45:09,097 WARN L623 FunctionHandler]: Unknown extern function skb_put [2022-12-14 09:45:09,098 WARN L623 FunctionHandler]: Unknown extern function eth_type_trans [2022-12-14 09:45:09,098 WARN L623 FunctionHandler]: Unknown extern function netif_rx [2022-12-14 09:45:09,100 WARN L623 FunctionHandler]: Unknown extern function usb_submit_urb [2022-12-14 09:45:09,100 WARN L623 FunctionHandler]: Unknown extern function netif_device_detach [2022-12-14 09:45:09,106 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 09:45:09,107 WARN L623 FunctionHandler]: Unknown extern function usb_submit_urb [2022-12-14 09:45:09,107 WARN L623 FunctionHandler]: Unknown extern function netif_device_detach [2022-12-14 09:45:09,113 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 09:45:09,115 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-12-14 09:45:09,115 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-12-14 09:45:09,121 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-12-14 09:45:09,124 WARN L623 FunctionHandler]: Unknown extern function usb_submit_urb [2022-12-14 09:45:09,124 WARN L623 FunctionHandler]: Unknown extern function netif_device_detach [2022-12-14 09:45:09,124 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 09:45:09,129 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 09:45:09,129 WARN L623 FunctionHandler]: Unknown extern function usb_unlink_urb [2022-12-14 09:45:09,137 WARN L623 FunctionHandler]: Unknown extern function usb_submit_urb [2022-12-14 09:45:09,137 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 09:45:09,138 WARN L623 FunctionHandler]: Unknown extern function netif_device_detach [2022-12-14 09:45:09,139 WARN L623 FunctionHandler]: Unknown extern function consume_skb [2022-12-14 09:45:09,154 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-12-14 09:45:09,160 WARN L623 FunctionHandler]: Unknown extern function netif_carrier_on [2022-12-14 09:45:09,160 WARN L623 FunctionHandler]: Unknown extern function netif_carrier_off [2022-12-14 09:45:09,165 WARN L623 FunctionHandler]: Unknown extern function usb_free_urb [2022-12-14 09:45:09,165 WARN L623 FunctionHandler]: Unknown extern function usb_free_urb [2022-12-14 09:45:09,165 WARN L623 FunctionHandler]: Unknown extern function usb_free_urb [2022-12-14 09:45:09,170 WARN L623 FunctionHandler]: Unknown extern function usb_kill_urb [2022-12-14 09:45:09,170 WARN L623 FunctionHandler]: Unknown extern function usb_kill_urb [2022-12-14 09:45:09,170 WARN L623 FunctionHandler]: Unknown extern function usb_kill_urb [2022-12-14 09:45:09,175 WARN L623 FunctionHandler]: Unknown extern function usb_alloc_urb [2022-12-14 09:45:09,176 WARN L623 FunctionHandler]: Unknown extern function usb_alloc_urb [2022-12-14 09:45:09,176 WARN L623 FunctionHandler]: Unknown extern function usb_free_urb [2022-12-14 09:45:09,176 WARN L623 FunctionHandler]: Unknown extern function usb_alloc_urb [2022-12-14 09:45:09,177 WARN L623 FunctionHandler]: Unknown extern function usb_free_urb [2022-12-14 09:45:09,177 WARN L623 FunctionHandler]: Unknown extern function usb_free_urb [2022-12-14 09:45:09,183 WARN L623 FunctionHandler]: Unknown extern function usb_submit_urb [2022-12-14 09:45:09,184 WARN L623 FunctionHandler]: Unknown extern function netif_device_detach [2022-12-14 09:45:09,185 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-12-14 09:45:09,187 WARN L623 FunctionHandler]: Unknown extern function usb_submit_urb [2022-12-14 09:45:09,187 WARN L623 FunctionHandler]: Unknown extern function netif_device_detach [2022-12-14 09:45:09,188 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-12-14 09:45:09,189 WARN L623 FunctionHandler]: Unknown extern function usb_kill_urb [2022-12-14 09:45:09,191 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-12-14 09:45:09,191 WARN L623 FunctionHandler]: Unknown extern function usb_kill_urb [2022-12-14 09:45:09,192 WARN L623 FunctionHandler]: Unknown extern function usb_kill_urb [2022-12-14 09:45:09,193 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-12-14 09:45:09,199 WARN L623 FunctionHandler]: Unknown extern function tasklet_kill [2022-12-14 09:45:09,204 WARN L623 FunctionHandler]: Unknown extern function strlcpy [2022-12-14 09:45:09,205 WARN L623 FunctionHandler]: Unknown extern function strlcpy [2022-12-14 09:45:09,216 WARN L623 FunctionHandler]: Unknown extern function device_set_wakeup_enable [2022-12-14 09:45:09,225 WARN L623 FunctionHandler]: Unknown extern function mii_ethtool_gset [2022-12-14 09:45:09,230 WARN L623 FunctionHandler]: Unknown extern function mii_ethtool_sset [2022-12-14 09:45:09,234 WARN L623 FunctionHandler]: Unknown extern function mii_nway_restart [2022-12-14 09:45:09,239 WARN L623 FunctionHandler]: Unknown extern function mii_link_ok [2022-12-14 09:45:09,255 WARN L623 FunctionHandler]: Unknown extern function capable [2022-12-14 09:45:09,262 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-12-14 09:45:09,264 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-12-14 09:45:09,275 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 09:45:09,291 WARN L623 FunctionHandler]: Unknown extern function destroy_workqueue [2022-12-14 09:45:09,297 WARN L623 FunctionHandler]: Unknown extern function __alloc_workqueue_key [2022-12-14 09:45:09,298 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 09:45:09,299 WARN L623 FunctionHandler]: Unknown extern function tasklet_init [2022-12-14 09:45:09,299 WARN L623 FunctionHandler]: Unknown extern function __init_work [2022-12-14 09:45:09,300 WARN L623 FunctionHandler]: Unknown extern function lockdep_init_map [2022-12-14 09:45:09,300 WARN L623 FunctionHandler]: Unknown extern function init_timer_key [2022-12-14 09:45:09,302 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 09:45:09,303 WARN L623 FunctionHandler]: Unknown extern function _dev_info [2022-12-14 09:45:09,303 WARN L623 FunctionHandler]: Unknown extern function dev_warn [2022-12-14 09:45:09,304 WARN L623 FunctionHandler]: Unknown extern function _dev_info [2022-12-14 09:45:09,311 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 09:45:09,312 WARN L623 FunctionHandler]: Unknown extern function cancel_delayed_work [2022-12-14 09:45:09,313 WARN L623 FunctionHandler]: Unknown extern function consume_skb [2022-12-14 09:45:09,317 WARN L623 FunctionHandler]: Unknown extern function netif_device_detach [2022-12-14 09:45:09,318 WARN L623 FunctionHandler]: Unknown extern function cancel_delayed_work [2022-12-14 09:45:09,319 WARN L623 FunctionHandler]: Unknown extern function usb_kill_urb [2022-12-14 09:45:09,319 WARN L623 FunctionHandler]: Unknown extern function usb_kill_urb [2022-12-14 09:45:09,324 WARN L623 FunctionHandler]: Unknown extern function netif_device_attach [2022-12-14 09:45:09,330 WARN L623 FunctionHandler]: Unknown extern function strsep [2022-12-14 09:45:09,331 WARN L623 FunctionHandler]: Unknown extern function strsep [2022-12-14 09:45:09,332 WARN L623 FunctionHandler]: Unknown extern function simple_strtoul [2022-12-14 09:45:09,332 WARN L623 FunctionHandler]: Unknown extern function strsep [2022-12-14 09:45:09,333 WARN L623 FunctionHandler]: Unknown extern function simple_strtoul [2022-12-14 09:45:09,333 WARN L623 FunctionHandler]: Unknown extern function simple_strtoul [2022-12-14 09:45:09,334 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 09:45:09,340 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 09:45:09,563 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 09:45:09,563 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 09:45:09,564 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 09:45:09,564 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 09:45:09,564 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 09:45:09,564 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 09:45:09,565 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 09:45:09,565 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 09:45:09,565 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 09:45:09,565 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 09:45:09,566 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 09:45:09,566 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 09:45:09,568 WARN L623 FunctionHandler]: Unknown extern function eth_change_mtu [2022-12-14 09:45:09,569 WARN L623 FunctionHandler]: Unknown extern function eth_mac_addr [2022-12-14 09:45:09,570 WARN L623 FunctionHandler]: Unknown extern function eth_validate_addr [2022-12-14 09:45:09,578 WARN L623 FunctionHandler]: Unknown extern function ldv_pre_register_netdev [2022-12-14 09:45:09,586 WARN L623 FunctionHandler]: Unknown extern function ldv_switch_to_interrupt_context [2022-12-14 09:45:09,587 WARN L623 FunctionHandler]: Unknown extern function ldv_switch_to_process_context [2022-12-14 09:45:09,601 WARN L623 FunctionHandler]: Unknown extern function ldv_pre_usb_register_driver [2022-12-14 09:45:09,604 WARN L623 FunctionHandler]: Unknown extern function ldv_pre_probe [2022-12-14 09:45:09,605 WARN L623 FunctionHandler]: Unknown extern function alloc_etherdev_mqs [2022-12-14 09:45:09,606 WARN L623 FunctionHandler]: Unknown extern function register_netdev [2022-12-14 09:45:09,607 WARN L623 FunctionHandler]: Unknown extern function free_netdev [2022-12-14 09:45:09,607 WARN L623 FunctionHandler]: Unknown extern function unregister_netdev [2022-12-14 09:45:09,607 WARN L623 FunctionHandler]: Unknown extern function free_netdev [2022-12-14 09:45:09,608 WARN L623 FunctionHandler]: Unknown extern function usb_register_driver [2022-12-14 09:45:09,608 WARN L623 FunctionHandler]: Unknown extern function usb_deregister [2022-12-14 09:45:09,701 WARN L623 FunctionHandler]: Unknown extern function ldv_check_alloc_flags [2022-12-14 09:45:09,702 WARN L623 FunctionHandler]: Unknown extern function ldv_after_alloc [2022-12-14 09:45:09,733 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 09:45:09,808 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_8aec296c-b071-474f-a22c-5008d2460733/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-usb-pegasus.cil.i[298288,298301] [2022-12-14 09:45:09,811 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_8aec296c-b071-474f-a22c-5008d2460733/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-usb-pegasus.cil.i[298435,298448] [2022-12-14 09:45:09,811 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_8aec296c-b071-474f-a22c-5008d2460733/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-usb-pegasus.cil.i[298574,298587] [2022-12-14 09:45:09,812 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_8aec296c-b071-474f-a22c-5008d2460733/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-usb-pegasus.cil.i[298732,298745] [2022-12-14 09:45:09,812 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 09:45:09,813 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 09:45:09,814 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 09:45:09,815 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 09:45:09,826 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 09:45:09,827 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 09:45:09,828 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 09:45:09,862 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 09:45:09,932 WARN L623 FunctionHandler]: Unknown extern function queue_delayed_work_on [2022-12-14 09:45:09,932 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 09:45:09,933 WARN L623 FunctionHandler]: Unknown extern function __netdev_alloc_skb [2022-12-14 09:45:09,934 WARN L623 FunctionHandler]: Unknown extern function netpoll_trap [2022-12-14 09:45:09,934 WARN L623 FunctionHandler]: Unknown extern function __netif_schedule [2022-12-14 09:45:09,935 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-12-14 09:45:09,935 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 09:45:09,937 WARN L623 FunctionHandler]: Unknown extern function __tasklet_schedule [2022-12-14 09:45:09,955 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 09:45:09,956 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 09:45:09,956 WARN L623 FunctionHandler]: Unknown extern function usb_free_urb [2022-12-14 09:45:09,956 WARN L623 FunctionHandler]: Unknown extern function usb_control_msg [2022-12-14 09:45:09,957 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-12-14 09:45:09,958 WARN L623 FunctionHandler]: Unknown extern function usb_control_msg [2022-12-14 09:45:09,959 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-12-14 09:45:09,960 WARN L623 FunctionHandler]: Unknown extern function usb_control_msg [2022-12-14 09:45:09,961 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-12-14 09:45:09,961 WARN L623 FunctionHandler]: Unknown extern function usb_alloc_urb [2022-12-14 09:45:09,962 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 09:45:09,962 WARN L623 FunctionHandler]: Unknown extern function usb_submit_urb [2022-12-14 09:45:09,962 WARN L623 FunctionHandler]: Unknown extern function netif_device_detach [2022-12-14 09:45:09,963 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 09:45:09,966 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-12-14 09:45:09,969 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 09:45:09,996 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-12-14 09:45:09,997 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 09:45:09,998 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-12-14 09:45:09,999 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-12-14 09:45:10,000 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-12-14 09:45:10,002 WARN L623 FunctionHandler]: Unknown extern function skb_put [2022-12-14 09:45:10,003 WARN L623 FunctionHandler]: Unknown extern function eth_type_trans [2022-12-14 09:45:10,003 WARN L623 FunctionHandler]: Unknown extern function netif_rx [2022-12-14 09:45:10,004 WARN L623 FunctionHandler]: Unknown extern function usb_submit_urb [2022-12-14 09:45:10,004 WARN L623 FunctionHandler]: Unknown extern function netif_device_detach [2022-12-14 09:45:10,007 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 09:45:10,007 WARN L623 FunctionHandler]: Unknown extern function usb_submit_urb [2022-12-14 09:45:10,008 WARN L623 FunctionHandler]: Unknown extern function netif_device_detach [2022-12-14 09:45:10,009 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 09:45:10,011 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-12-14 09:45:10,012 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-12-14 09:45:10,014 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-12-14 09:45:10,016 WARN L623 FunctionHandler]: Unknown extern function usb_submit_urb [2022-12-14 09:45:10,016 WARN L623 FunctionHandler]: Unknown extern function netif_device_detach [2022-12-14 09:45:10,016 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 09:45:10,017 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 09:45:10,017 WARN L623 FunctionHandler]: Unknown extern function usb_unlink_urb [2022-12-14 09:45:10,019 WARN L623 FunctionHandler]: Unknown extern function usb_submit_urb [2022-12-14 09:45:10,019 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 09:45:10,020 WARN L623 FunctionHandler]: Unknown extern function netif_device_detach [2022-12-14 09:45:10,021 WARN L623 FunctionHandler]: Unknown extern function consume_skb [2022-12-14 09:45:10,022 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-12-14 09:45:10,024 WARN L623 FunctionHandler]: Unknown extern function netif_carrier_on [2022-12-14 09:45:10,024 WARN L623 FunctionHandler]: Unknown extern function netif_carrier_off [2022-12-14 09:45:10,024 WARN L623 FunctionHandler]: Unknown extern function usb_free_urb [2022-12-14 09:45:10,024 WARN L623 FunctionHandler]: Unknown extern function usb_free_urb [2022-12-14 09:45:10,025 WARN L623 FunctionHandler]: Unknown extern function usb_free_urb [2022-12-14 09:45:10,025 WARN L623 FunctionHandler]: Unknown extern function usb_kill_urb [2022-12-14 09:45:10,025 WARN L623 FunctionHandler]: Unknown extern function usb_kill_urb [2022-12-14 09:45:10,025 WARN L623 FunctionHandler]: Unknown extern function usb_kill_urb [2022-12-14 09:45:10,026 WARN L623 FunctionHandler]: Unknown extern function usb_alloc_urb [2022-12-14 09:45:10,026 WARN L623 FunctionHandler]: Unknown extern function usb_alloc_urb [2022-12-14 09:45:10,026 WARN L623 FunctionHandler]: Unknown extern function usb_free_urb [2022-12-14 09:45:10,027 WARN L623 FunctionHandler]: Unknown extern function usb_alloc_urb [2022-12-14 09:45:10,027 WARN L623 FunctionHandler]: Unknown extern function usb_free_urb [2022-12-14 09:45:10,027 WARN L623 FunctionHandler]: Unknown extern function usb_free_urb [2022-12-14 09:45:10,029 WARN L623 FunctionHandler]: Unknown extern function usb_submit_urb [2022-12-14 09:45:10,029 WARN L623 FunctionHandler]: Unknown extern function netif_device_detach [2022-12-14 09:45:10,030 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-12-14 09:45:10,031 WARN L623 FunctionHandler]: Unknown extern function usb_submit_urb [2022-12-14 09:45:10,031 WARN L623 FunctionHandler]: Unknown extern function netif_device_detach [2022-12-14 09:45:10,032 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-12-14 09:45:10,032 WARN L623 FunctionHandler]: Unknown extern function usb_kill_urb [2022-12-14 09:45:10,034 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-12-14 09:45:10,034 WARN L623 FunctionHandler]: Unknown extern function usb_kill_urb [2022-12-14 09:45:10,034 WARN L623 FunctionHandler]: Unknown extern function usb_kill_urb [2022-12-14 09:45:10,035 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-12-14 09:45:10,037 WARN L623 FunctionHandler]: Unknown extern function tasklet_kill [2022-12-14 09:45:10,037 WARN L623 FunctionHandler]: Unknown extern function strlcpy [2022-12-14 09:45:10,038 WARN L623 FunctionHandler]: Unknown extern function strlcpy [2022-12-14 09:45:10,040 WARN L623 FunctionHandler]: Unknown extern function device_set_wakeup_enable [2022-12-14 09:45:10,041 WARN L623 FunctionHandler]: Unknown extern function mii_ethtool_gset [2022-12-14 09:45:10,042 WARN L623 FunctionHandler]: Unknown extern function mii_ethtool_sset [2022-12-14 09:45:10,042 WARN L623 FunctionHandler]: Unknown extern function mii_nway_restart [2022-12-14 09:45:10,043 WARN L623 FunctionHandler]: Unknown extern function mii_link_ok [2022-12-14 09:45:10,045 WARN L623 FunctionHandler]: Unknown extern function capable [2022-12-14 09:45:10,046 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-12-14 09:45:10,048 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-12-14 09:45:10,050 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 09:45:10,052 WARN L623 FunctionHandler]: Unknown extern function destroy_workqueue [2022-12-14 09:45:10,054 WARN L623 FunctionHandler]: Unknown extern function __alloc_workqueue_key [2022-12-14 09:45:10,055 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 09:45:10,055 WARN L623 FunctionHandler]: Unknown extern function tasklet_init [2022-12-14 09:45:10,056 WARN L623 FunctionHandler]: Unknown extern function __init_work [2022-12-14 09:45:10,056 WARN L623 FunctionHandler]: Unknown extern function lockdep_init_map [2022-12-14 09:45:10,056 WARN L623 FunctionHandler]: Unknown extern function init_timer_key [2022-12-14 09:45:10,058 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 09:45:10,058 WARN L623 FunctionHandler]: Unknown extern function _dev_info [2022-12-14 09:45:10,059 WARN L623 FunctionHandler]: Unknown extern function dev_warn [2022-12-14 09:45:10,060 WARN L623 FunctionHandler]: Unknown extern function _dev_info [2022-12-14 09:45:10,063 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 09:45:10,063 WARN L623 FunctionHandler]: Unknown extern function cancel_delayed_work [2022-12-14 09:45:10,064 WARN L623 FunctionHandler]: Unknown extern function consume_skb [2022-12-14 09:45:10,064 WARN L623 FunctionHandler]: Unknown extern function netif_device_detach [2022-12-14 09:45:10,065 WARN L623 FunctionHandler]: Unknown extern function cancel_delayed_work [2022-12-14 09:45:10,065 WARN L623 FunctionHandler]: Unknown extern function usb_kill_urb [2022-12-14 09:45:10,065 WARN L623 FunctionHandler]: Unknown extern function usb_kill_urb [2022-12-14 09:45:10,066 WARN L623 FunctionHandler]: Unknown extern function netif_device_attach [2022-12-14 09:45:10,068 WARN L623 FunctionHandler]: Unknown extern function strsep [2022-12-14 09:45:10,068 WARN L623 FunctionHandler]: Unknown extern function strsep [2022-12-14 09:45:10,069 WARN L623 FunctionHandler]: Unknown extern function simple_strtoul [2022-12-14 09:45:10,069 WARN L623 FunctionHandler]: Unknown extern function strsep [2022-12-14 09:45:10,069 WARN L623 FunctionHandler]: Unknown extern function simple_strtoul [2022-12-14 09:45:10,070 WARN L623 FunctionHandler]: Unknown extern function simple_strtoul [2022-12-14 09:45:10,070 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 09:45:10,072 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 09:45:10,076 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 09:45:10,076 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 09:45:10,077 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 09:45:10,077 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 09:45:10,077 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 09:45:10,077 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 09:45:10,077 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 09:45:10,078 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 09:45:10,078 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 09:45:10,078 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 09:45:10,078 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 09:45:10,078 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 09:45:10,080 WARN L623 FunctionHandler]: Unknown extern function eth_change_mtu [2022-12-14 09:45:10,080 WARN L623 FunctionHandler]: Unknown extern function eth_mac_addr [2022-12-14 09:45:10,081 WARN L623 FunctionHandler]: Unknown extern function eth_validate_addr [2022-12-14 09:45:10,087 WARN L623 FunctionHandler]: Unknown extern function ldv_pre_register_netdev [2022-12-14 09:45:10,094 WARN L623 FunctionHandler]: Unknown extern function ldv_switch_to_interrupt_context [2022-12-14 09:45:10,094 WARN L623 FunctionHandler]: Unknown extern function ldv_switch_to_process_context [2022-12-14 09:45:10,100 WARN L623 FunctionHandler]: Unknown extern function ldv_pre_usb_register_driver [2022-12-14 09:45:10,103 WARN L623 FunctionHandler]: Unknown extern function ldv_pre_probe [2022-12-14 09:45:10,104 WARN L623 FunctionHandler]: Unknown extern function alloc_etherdev_mqs [2022-12-14 09:45:10,105 WARN L623 FunctionHandler]: Unknown extern function register_netdev [2022-12-14 09:45:10,105 WARN L623 FunctionHandler]: Unknown extern function free_netdev [2022-12-14 09:45:10,105 WARN L623 FunctionHandler]: Unknown extern function unregister_netdev [2022-12-14 09:45:10,105 WARN L623 FunctionHandler]: Unknown extern function free_netdev [2022-12-14 09:45:10,106 WARN L623 FunctionHandler]: Unknown extern function usb_register_driver [2022-12-14 09:45:10,106 WARN L623 FunctionHandler]: Unknown extern function usb_deregister [2022-12-14 09:45:10,110 WARN L623 FunctionHandler]: Unknown extern function ldv_check_alloc_flags [2022-12-14 09:45:10,111 WARN L623 FunctionHandler]: Unknown extern function ldv_after_alloc [2022-12-14 09:45:10,112 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 09:45:10,116 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_8aec296c-b071-474f-a22c-5008d2460733/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-usb-pegasus.cil.i[298288,298301] [2022-12-14 09:45:10,117 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_8aec296c-b071-474f-a22c-5008d2460733/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-usb-pegasus.cil.i[298435,298448] [2022-12-14 09:45:10,117 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_8aec296c-b071-474f-a22c-5008d2460733/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-usb-pegasus.cil.i[298574,298587] [2022-12-14 09:45:10,118 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_8aec296c-b071-474f-a22c-5008d2460733/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-usb-pegasus.cil.i[298732,298745] [2022-12-14 09:45:10,118 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 09:45:10,119 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 09:45:10,122 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 09:45:10,122 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 09:45:10,125 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 09:45:10,126 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 09:45:10,127 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 09:45:10,274 INFO L208 MainTranslator]: Completed translation [2022-12-14 09:45:10,274 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:45:10 WrapperNode [2022-12-14 09:45:10,275 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 09:45:10,275 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 09:45:10,276 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 09:45:10,276 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 09:45:10,283 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:45:10" (1/1) ... [2022-12-14 09:45:10,335 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:45:10" (1/1) ... [2022-12-14 09:45:10,495 INFO L138 Inliner]: procedures = 311, calls = 3158, calls flagged for inlining = 171, calls inlined = 158, statements flattened = 5362 [2022-12-14 09:45:10,496 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 09:45:10,496 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 09:45:10,496 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 09:45:10,496 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 09:45:10,507 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:45:10" (1/1) ... [2022-12-14 09:45:10,507 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:45:10" (1/1) ... [2022-12-14 09:45:10,528 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:45:10" (1/1) ... [2022-12-14 09:45:10,528 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:45:10" (1/1) ... [2022-12-14 09:45:10,599 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:45:10" (1/1) ... [2022-12-14 09:45:10,607 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:45:10" (1/1) ... [2022-12-14 09:45:10,622 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:45:10" (1/1) ... [2022-12-14 09:45:10,635 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:45:10" (1/1) ... [2022-12-14 09:45:10,656 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 09:45:10,657 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 09:45:10,657 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 09:45:10,657 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 09:45:10,658 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:45:10" (1/1) ... [2022-12-14 09:45:10,663 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 09:45:10,671 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aec296c-b071-474f-a22c-5008d2460733/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 09:45:10,682 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aec296c-b071-474f-a22c-5008d2460733/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 09:45:10,684 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aec296c-b071-474f-a22c-5008d2460733/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 09:45:10,711 INFO L130 BoogieDeclarations]: Found specification of procedure read_bulk_callback [2022-12-14 09:45:10,711 INFO L138 BoogieDeclarations]: Found implementation of procedure read_bulk_callback [2022-12-14 09:45:10,711 INFO L130 BoogieDeclarations]: Found specification of procedure usb_get_intfdata [2022-12-14 09:45:10,711 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_get_intfdata [2022-12-14 09:45:10,711 INFO L130 BoogieDeclarations]: Found specification of procedure usb_submit_urb [2022-12-14 09:45:10,711 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_submit_urb [2022-12-14 09:45:10,711 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-12-14 09:45:10,711 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-12-14 09:45:10,711 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-12-14 09:45:10,711 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-12-14 09:45:10,711 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-12-14 09:45:10,711 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-12-14 09:45:10,711 INFO L130 BoogieDeclarations]: Found specification of procedure write_mii_word [2022-12-14 09:45:10,711 INFO L138 BoogieDeclarations]: Found implementation of procedure write_mii_word [2022-12-14 09:45:10,711 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_present [2022-12-14 09:45:10,711 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_present [2022-12-14 09:45:10,711 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-12-14 09:45:10,712 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-12-14 09:45:10,712 INFO L130 BoogieDeclarations]: Found specification of procedure cancel_delayed_work [2022-12-14 09:45:10,712 INFO L138 BoogieDeclarations]: Found implementation of procedure cancel_delayed_work [2022-12-14 09:45:10,712 INFO L130 BoogieDeclarations]: Found specification of procedure set_carrier [2022-12-14 09:45:10,712 INFO L138 BoogieDeclarations]: Found implementation of procedure set_carrier [2022-12-14 09:45:10,712 INFO L130 BoogieDeclarations]: Found specification of procedure usb_fill_bulk_urb [2022-12-14 09:45:10,712 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_fill_bulk_urb [2022-12-14 09:45:10,712 INFO L130 BoogieDeclarations]: Found specification of procedure strsep [2022-12-14 09:45:10,712 INFO L138 BoogieDeclarations]: Found implementation of procedure strsep [2022-12-14 09:45:10,712 INFO L130 BoogieDeclarations]: Found specification of procedure read_mii_word [2022-12-14 09:45:10,712 INFO L138 BoogieDeclarations]: Found implementation of procedure read_mii_word [2022-12-14 09:45:10,712 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2022-12-14 09:45:10,712 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2022-12-14 09:45:10,712 INFO L130 BoogieDeclarations]: Found specification of procedure pegasus_open [2022-12-14 09:45:10,712 INFO L138 BoogieDeclarations]: Found implementation of procedure pegasus_open [2022-12-14 09:45:10,712 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2022-12-14 09:45:10,712 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2022-12-14 09:45:10,712 INFO L130 BoogieDeclarations]: Found specification of procedure netif_start_queue [2022-12-14 09:45:10,713 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_start_queue [2022-12-14 09:45:10,713 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-14 09:45:10,713 INFO L130 BoogieDeclarations]: Found specification of procedure read_eprom_word [2022-12-14 09:45:10,713 INFO L138 BoogieDeclarations]: Found implementation of procedure read_eprom_word [2022-12-14 09:45:10,713 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2022-12-14 09:45:10,713 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2022-12-14 09:45:10,713 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-12-14 09:45:10,713 INFO L130 BoogieDeclarations]: Found specification of procedure pegasus_nway_reset [2022-12-14 09:45:10,713 INFO L138 BoogieDeclarations]: Found implementation of procedure pegasus_nway_reset [2022-12-14 09:45:10,713 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-12-14 09:45:10,713 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-12-14 09:45:10,713 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2022-12-14 09:45:10,713 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2022-12-14 09:45:10,713 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2022-12-14 09:45:10,713 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2022-12-14 09:45:10,713 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-12-14 09:45:10,713 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-12-14 09:45:10,713 INFO L130 BoogieDeclarations]: Found specification of procedure pegasus_resume [2022-12-14 09:45:10,713 INFO L138 BoogieDeclarations]: Found implementation of procedure pegasus_resume [2022-12-14 09:45:10,713 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-14 09:45:10,714 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-12-14 09:45:10,714 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_detach [2022-12-14 09:45:10,714 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_detach [2022-12-14 09:45:10,714 INFO L130 BoogieDeclarations]: Found specification of procedure pegasus_tx_timeout [2022-12-14 09:45:10,714 INFO L138 BoogieDeclarations]: Found implementation of procedure pegasus_tx_timeout [2022-12-14 09:45:10,714 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-12-14 09:45:10,714 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-12-14 09:45:10,714 INFO L130 BoogieDeclarations]: Found specification of procedure pegasus_dec_workqueue [2022-12-14 09:45:10,714 INFO L138 BoogieDeclarations]: Found implementation of procedure pegasus_dec_workqueue [2022-12-14 09:45:10,714 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_intfdata [2022-12-14 09:45:10,714 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_intfdata [2022-12-14 09:45:10,714 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-12-14 09:45:10,714 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-12-14 09:45:10,714 INFO L130 BoogieDeclarations]: Found specification of procedure free_all_urbs [2022-12-14 09:45:10,714 INFO L138 BoogieDeclarations]: Found implementation of procedure free_all_urbs [2022-12-14 09:45:10,714 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-12-14 09:45:10,714 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-12-14 09:45:10,714 INFO L130 BoogieDeclarations]: Found specification of procedure pegasus_disconnect [2022-12-14 09:45:10,714 INFO L138 BoogieDeclarations]: Found implementation of procedure pegasus_disconnect [2022-12-14 09:45:10,715 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_urb [2022-12-14 09:45:10,715 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_urb [2022-12-14 09:45:10,715 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-12-14 09:45:10,715 INFO L130 BoogieDeclarations]: Found specification of procedure simple_strtoul [2022-12-14 09:45:10,715 INFO L138 BoogieDeclarations]: Found implementation of procedure simple_strtoul [2022-12-14 09:45:10,715 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-12-14 09:45:10,715 INFO L130 BoogieDeclarations]: Found specification of procedure __mii_op [2022-12-14 09:45:10,715 INFO L138 BoogieDeclarations]: Found implementation of procedure __mii_op [2022-12-14 09:45:10,715 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-12-14 09:45:10,715 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-12-14 09:45:10,715 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-14 09:45:10,715 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2022-12-14 09:45:10,715 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2022-12-14 09:45:10,715 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-12-14 09:45:10,715 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-12-14 09:45:10,715 INFO L130 BoogieDeclarations]: Found specification of procedure intr_callback [2022-12-14 09:45:10,715 INFO L138 BoogieDeclarations]: Found implementation of procedure intr_callback [2022-12-14 09:45:10,715 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-12-14 09:45:10,715 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-12-14 09:45:10,715 INFO L130 BoogieDeclarations]: Found specification of procedure pegasus_set_wol [2022-12-14 09:45:10,716 INFO L138 BoogieDeclarations]: Found implementation of procedure pegasus_set_wol [2022-12-14 09:45:10,716 INFO L130 BoogieDeclarations]: Found specification of procedure __netdev_alloc_skb_ip_align [2022-12-14 09:45:10,716 INFO L138 BoogieDeclarations]: Found implementation of procedure __netdev_alloc_skb_ip_align [2022-12-14 09:45:10,716 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2022-12-14 09:45:10,716 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2022-12-14 09:45:10,716 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2022-12-14 09:45:10,716 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2022-12-14 09:45:10,716 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-12-14 09:45:10,716 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-12-14 09:45:10,716 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_urb [2022-12-14 09:45:10,716 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_urb [2022-12-14 09:45:10,716 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_pegasus_exit_11_2 [2022-12-14 09:45:10,716 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_pegasus_exit_11_2 [2022-12-14 09:45:10,716 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-12-14 09:45:10,716 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-12-14 09:45:10,716 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-14 09:45:10,716 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-12-14 09:45:10,716 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-12-14 09:45:10,716 INFO L130 BoogieDeclarations]: Found specification of procedure pegasus_set_multicast [2022-12-14 09:45:10,716 INFO L138 BoogieDeclarations]: Found implementation of procedure pegasus_set_multicast [2022-12-14 09:45:10,717 INFO L130 BoogieDeclarations]: Found specification of procedure set_register [2022-12-14 09:45:10,717 INFO L138 BoogieDeclarations]: Found implementation of procedure set_register [2022-12-14 09:45:10,717 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-12-14 09:45:10,717 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2022-12-14 09:45:10,717 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2022-12-14 09:45:10,717 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2022-12-14 09:45:10,717 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2022-12-14 09:45:10,717 INFO L130 BoogieDeclarations]: Found specification of procedure unlink_all_urbs [2022-12-14 09:45:10,717 INFO L138 BoogieDeclarations]: Found implementation of procedure unlink_all_urbs [2022-12-14 09:45:10,717 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 09:45:10,717 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-12-14 09:45:10,717 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-12-14 09:45:10,717 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-12-14 09:45:10,717 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2022-12-14 09:45:10,717 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2022-12-14 09:45:10,717 INFO L130 BoogieDeclarations]: Found specification of procedure tasklet_schedule [2022-12-14 09:45:10,717 INFO L138 BoogieDeclarations]: Found implementation of procedure tasklet_schedule [2022-12-14 09:45:10,717 INFO L130 BoogieDeclarations]: Found specification of procedure usb_control_msg [2022-12-14 09:45:10,717 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_control_msg [2022-12-14 09:45:10,717 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_urb [2022-12-14 09:45:10,718 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_urb [2022-12-14 09:45:10,718 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-12-14 09:45:10,718 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-12-14 09:45:10,718 INFO L130 BoogieDeclarations]: Found specification of procedure pegasus_close [2022-12-14 09:45:10,718 INFO L138 BoogieDeclarations]: Found implementation of procedure pegasus_close [2022-12-14 09:45:10,718 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2022-12-14 09:45:10,718 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2022-12-14 09:45:10,718 INFO L130 BoogieDeclarations]: Found specification of procedure get_registers [2022-12-14 09:45:10,718 INFO L138 BoogieDeclarations]: Found implementation of procedure get_registers [2022-12-14 09:45:10,718 INFO L130 BoogieDeclarations]: Found specification of procedure queue_delayed_work [2022-12-14 09:45:10,718 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_delayed_work [2022-12-14 09:45:10,718 INFO L130 BoogieDeclarations]: Found specification of procedure delayed_work_timer_fn [2022-12-14 09:45:10,718 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_instance_release_3_4 [2022-12-14 09:45:10,718 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_instance_release_3_4 [2022-12-14 09:45:10,718 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 09:45:10,718 INFO L130 BoogieDeclarations]: Found specification of procedure set_registers [2022-12-14 09:45:10,718 INFO L138 BoogieDeclarations]: Found implementation of procedure set_registers [2022-12-14 09:45:10,718 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2022-12-14 09:45:10,718 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2022-12-14 09:45:10,718 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 09:45:10,719 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 09:45:11,236 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 09:45:11,238 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 09:45:11,683 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-12-14 09:45:16,834 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2022-12-14 09:45:17,137 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 09:45:18,000 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 09:45:18,000 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-14 09:45:18,005 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 09:45:18 BoogieIcfgContainer [2022-12-14 09:45:18,005 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 09:45:18,017 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 09:45:18,018 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 09:45:18,020 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 09:45:18,020 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 09:45:08" (1/3) ... [2022-12-14 09:45:18,021 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@27e5ec5d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 09:45:18, skipping insertion in model container [2022-12-14 09:45:18,021 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:45:10" (2/3) ... [2022-12-14 09:45:18,021 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@27e5ec5d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 09:45:18, skipping insertion in model container [2022-12-14 09:45:18,021 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 09:45:18" (3/3) ... [2022-12-14 09:45:18,022 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-usb-dev_drivers-net-usb-pegasus.cil.i [2022-12-14 09:45:18,041 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 09:45:18,042 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-12-14 09:45:18,098 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 09:45:18,103 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@52bdba18, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 09:45:18,104 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-12-14 09:45:18,110 INFO L276 IsEmpty]: Start isEmpty. Operand has 1014 states, 639 states have (on average 1.3302034428794993) internal successors, (850), 648 states have internal predecessors, (850), 305 states have call successors, (305), 69 states have call predecessors, (305), 68 states have return successors, (299), 297 states have call predecessors, (299), 299 states have call successors, (299) [2022-12-14 09:45:18,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2022-12-14 09:45:18,123 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:45:18,124 INFO L195 NwaCegarLoop]: trace histogram [13, 12, 12, 12, 12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 09:45:18,125 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 09:45:18,128 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:45:18,129 INFO L85 PathProgramCache]: Analyzing trace with hash 1687085113, now seen corresponding path program 1 times [2022-12-14 09:45:18,136 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:45:18,136 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [570624793] [2022-12-14 09:45:18,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:45:18,136 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:45:18,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:45:19,092 INFO L134 CoverageAnalysis]: Checked inductivity of 552 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 552 trivial. 0 not checked. [2022-12-14 09:45:19,092 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:45:19,092 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [570624793] [2022-12-14 09:45:19,093 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [570624793] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:45:19,093 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:45:19,093 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 09:45:19,095 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [721119904] [2022-12-14 09:45:19,096 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:45:19,100 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 09:45:19,101 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:45:19,131 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 09:45:19,132 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 09:45:19,136 INFO L87 Difference]: Start difference. First operand has 1014 states, 639 states have (on average 1.3302034428794993) internal successors, (850), 648 states have internal predecessors, (850), 305 states have call successors, (305), 69 states have call predecessors, (305), 68 states have return successors, (299), 297 states have call predecessors, (299), 299 states have call successors, (299) Second operand has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 3 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2022-12-14 09:45:22,871 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 09:45:23,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:45:23,019 INFO L93 Difference]: Finished difference Result 2780 states and 3980 transitions. [2022-12-14 09:45:23,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 09:45:23,021 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 3 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) Word has length 140 [2022-12-14 09:45:23,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:45:23,038 INFO L225 Difference]: With dead ends: 2780 [2022-12-14 09:45:23,038 INFO L226 Difference]: Without dead ends: 1781 [2022-12-14 09:45:23,044 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 09:45:23,046 INFO L413 NwaCegarLoop]: 1446 mSDtfsCounter, 1161 mSDsluCounter, 1156 mSDsCounter, 0 mSdLazyCounter, 458 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1161 SdHoareTripleChecker+Valid, 2602 SdHoareTripleChecker+Invalid, 466 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 458 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2022-12-14 09:45:23,046 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1161 Valid, 2602 Invalid, 466 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 458 Invalid, 1 Unknown, 0 Unchecked, 3.7s Time] [2022-12-14 09:45:23,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1781 states. [2022-12-14 09:45:23,162 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1781 to 1779. [2022-12-14 09:45:23,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1779 states, 1133 states have (on average 1.3265666372462488) internal successors, (1503), 1146 states have internal predecessors, (1503), 514 states have call successors, (514), 131 states have call predecessors, (514), 130 states have return successors, (511), 508 states have call predecessors, (511), 511 states have call successors, (511) [2022-12-14 09:45:23,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1779 states to 1779 states and 2528 transitions. [2022-12-14 09:45:23,175 INFO L78 Accepts]: Start accepts. Automaton has 1779 states and 2528 transitions. Word has length 140 [2022-12-14 09:45:23,175 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:45:23,175 INFO L495 AbstractCegarLoop]: Abstraction has 1779 states and 2528 transitions. [2022-12-14 09:45:23,175 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 3 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2022-12-14 09:45:23,176 INFO L276 IsEmpty]: Start isEmpty. Operand 1779 states and 2528 transitions. [2022-12-14 09:45:23,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2022-12-14 09:45:23,184 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:45:23,184 INFO L195 NwaCegarLoop]: trace histogram [16, 12, 12, 12, 12, 12, 12, 4, 4, 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] [2022-12-14 09:45:23,185 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 09:45:23,185 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 09:45:23,185 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:45:23,185 INFO L85 PathProgramCache]: Analyzing trace with hash -1144676477, now seen corresponding path program 1 times [2022-12-14 09:45:23,185 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:45:23,185 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1546136359] [2022-12-14 09:45:23,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:45:23,186 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:45:23,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:45:24,012 INFO L134 CoverageAnalysis]: Checked inductivity of 663 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 663 trivial. 0 not checked. [2022-12-14 09:45:24,013 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:45:24,013 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1546136359] [2022-12-14 09:45:24,013 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1546136359] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:45:24,013 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:45:24,013 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 09:45:24,014 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [433326590] [2022-12-14 09:45:24,014 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:45:24,015 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 09:45:24,015 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:45:24,016 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 09:45:24,016 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 09:45:24,016 INFO L87 Difference]: Start difference. First operand 1779 states and 2528 transitions. Second operand has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-12-14 09:45:27,850 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 09:45:28,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:45:28,633 INFO L93 Difference]: Finished difference Result 2651 states and 3752 transitions. [2022-12-14 09:45:28,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 09:45:28,634 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 184 [2022-12-14 09:45:28,635 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:45:28,644 INFO L225 Difference]: With dead ends: 2651 [2022-12-14 09:45:28,644 INFO L226 Difference]: Without dead ends: 2635 [2022-12-14 09:45:28,646 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 09:45:28,647 INFO L413 NwaCegarLoop]: 1445 mSDtfsCounter, 1182 mSDsluCounter, 2615 mSDsCounter, 0 mSdLazyCounter, 668 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1182 SdHoareTripleChecker+Valid, 4060 SdHoareTripleChecker+Invalid, 669 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 668 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2022-12-14 09:45:28,647 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1182 Valid, 4060 Invalid, 669 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 668 Invalid, 1 Unknown, 0 Unchecked, 4.5s Time] [2022-12-14 09:45:28,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2635 states. [2022-12-14 09:45:28,741 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2635 to 2633. [2022-12-14 09:45:28,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2633 states, 1679 states have (on average 1.3263847528290649) internal successors, (2227), 1695 states have internal predecessors, (2227), 752 states have call successors, (752), 201 states have call predecessors, (752), 200 states have return successors, (749), 745 states have call predecessors, (749), 749 states have call successors, (749) [2022-12-14 09:45:28,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2633 states to 2633 states and 3728 transitions. [2022-12-14 09:45:28,756 INFO L78 Accepts]: Start accepts. Automaton has 2633 states and 3728 transitions. Word has length 184 [2022-12-14 09:45:28,757 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:45:28,757 INFO L495 AbstractCegarLoop]: Abstraction has 2633 states and 3728 transitions. [2022-12-14 09:45:28,757 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-12-14 09:45:28,758 INFO L276 IsEmpty]: Start isEmpty. Operand 2633 states and 3728 transitions. [2022-12-14 09:45:28,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2022-12-14 09:45:28,765 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:45:28,765 INFO L195 NwaCegarLoop]: trace histogram [13, 12, 12, 12, 12, 12, 12, 7, 7, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 09:45:28,765 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-14 09:45:28,765 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 09:45:28,765 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:45:28,766 INFO L85 PathProgramCache]: Analyzing trace with hash -636783913, now seen corresponding path program 1 times [2022-12-14 09:45:28,766 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:45:28,766 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1255312789] [2022-12-14 09:45:28,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:45:28,767 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:45:28,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:45:29,324 INFO L134 CoverageAnalysis]: Checked inductivity of 642 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 642 trivial. 0 not checked. [2022-12-14 09:45:29,324 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:45:29,325 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1255312789] [2022-12-14 09:45:29,325 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1255312789] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:45:29,325 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:45:29,325 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 09:45:29,326 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [377273699] [2022-12-14 09:45:29,326 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:45:29,326 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 09:45:29,327 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:45:29,327 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 09:45:29,328 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 09:45:29,328 INFO L87 Difference]: Start difference. First operand 2633 states and 3728 transitions. Second operand has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 3 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) [2022-12-14 09:45:33,608 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 09:45:33,800 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:45:33,800 INFO L93 Difference]: Finished difference Result 6509 states and 9199 transitions. [2022-12-14 09:45:33,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 09:45:33,800 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 3 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) Word has length 201 [2022-12-14 09:45:33,801 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:45:33,822 INFO L225 Difference]: With dead ends: 6509 [2022-12-14 09:45:33,822 INFO L226 Difference]: Without dead ends: 3901 [2022-12-14 09:45:33,832 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 09:45:33,833 INFO L413 NwaCegarLoop]: 1336 mSDtfsCounter, 601 mSDsluCounter, 1181 mSDsCounter, 0 mSdLazyCounter, 479 mSolverCounterSat, 16 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 601 SdHoareTripleChecker+Valid, 2517 SdHoareTripleChecker+Invalid, 496 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 479 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2022-12-14 09:45:33,833 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [601 Valid, 2517 Invalid, 496 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 479 Invalid, 1 Unknown, 0 Unchecked, 4.3s Time] [2022-12-14 09:45:33,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3901 states. [2022-12-14 09:45:34,004 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3901 to 3888. [2022-12-14 09:45:34,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3888 states, 2518 states have (on average 1.335186656076251) internal successors, (3362), 2552 states have internal predecessors, (3362), 1052 states have call successors, (1052), 317 states have call predecessors, (1052), 316 states have return successors, (1049), 1033 states have call predecessors, (1049), 1049 states have call successors, (1049) [2022-12-14 09:45:34,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3888 states to 3888 states and 5463 transitions. [2022-12-14 09:45:34,022 INFO L78 Accepts]: Start accepts. Automaton has 3888 states and 5463 transitions. Word has length 201 [2022-12-14 09:45:34,023 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:45:34,023 INFO L495 AbstractCegarLoop]: Abstraction has 3888 states and 5463 transitions. [2022-12-14 09:45:34,023 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 3 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) [2022-12-14 09:45:34,023 INFO L276 IsEmpty]: Start isEmpty. Operand 3888 states and 5463 transitions. [2022-12-14 09:45:34,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 220 [2022-12-14 09:45:34,029 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:45:34,029 INFO L195 NwaCegarLoop]: trace histogram [14, 12, 12, 12, 12, 12, 12, 8, 8, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2022-12-14 09:45:34,029 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-14 09:45:34,029 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 09:45:34,030 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:45:34,030 INFO L85 PathProgramCache]: Analyzing trace with hash 674561299, now seen corresponding path program 1 times [2022-12-14 09:45:34,030 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:45:34,030 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [209949472] [2022-12-14 09:45:34,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:45:34,030 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:45:34,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:45:34,403 INFO L134 CoverageAnalysis]: Checked inductivity of 696 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 689 trivial. 0 not checked. [2022-12-14 09:45:34,403 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:45:34,403 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [209949472] [2022-12-14 09:45:34,403 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [209949472] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:45:34,403 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:45:34,403 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 09:45:34,403 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [454314203] [2022-12-14 09:45:34,403 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:45:34,404 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 09:45:34,404 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:45:34,404 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 09:45:34,404 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 09:45:34,404 INFO L87 Difference]: Start difference. First operand 3888 states and 5463 transitions. Second operand has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 3 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) [2022-12-14 09:45:38,229 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 09:45:38,347 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:45:38,347 INFO L93 Difference]: Finished difference Result 7892 states and 11049 transitions. [2022-12-14 09:45:38,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 09:45:38,347 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 3 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) Word has length 219 [2022-12-14 09:45:38,348 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:45:38,361 INFO L225 Difference]: With dead ends: 7892 [2022-12-14 09:45:38,361 INFO L226 Difference]: Without dead ends: 4029 [2022-12-14 09:45:38,368 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 09:45:38,369 INFO L413 NwaCegarLoop]: 1348 mSDtfsCounter, 602 mSDsluCounter, 1201 mSDsCounter, 0 mSdLazyCounter, 452 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 602 SdHoareTripleChecker+Valid, 2549 SdHoareTripleChecker+Invalid, 456 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 452 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2022-12-14 09:45:38,369 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [602 Valid, 2549 Invalid, 456 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 452 Invalid, 1 Unknown, 0 Unchecked, 3.8s Time] [2022-12-14 09:45:38,373 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4029 states. [2022-12-14 09:45:38,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4029 to 4021. [2022-12-14 09:45:38,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4021 states, 2621 states have (on average 1.3357497138496757) internal successors, (3501), 2661 states have internal predecessors, (3501), 1056 states have call successors, (1056), 344 states have call predecessors, (1056), 342 states have return successors, (1053), 1032 states have call predecessors, (1053), 1053 states have call successors, (1053) [2022-12-14 09:45:38,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4021 states to 4021 states and 5610 transitions. [2022-12-14 09:45:38,492 INFO L78 Accepts]: Start accepts. Automaton has 4021 states and 5610 transitions. Word has length 219 [2022-12-14 09:45:38,492 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:45:38,492 INFO L495 AbstractCegarLoop]: Abstraction has 4021 states and 5610 transitions. [2022-12-14 09:45:38,493 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 3 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) [2022-12-14 09:45:38,493 INFO L276 IsEmpty]: Start isEmpty. Operand 4021 states and 5610 transitions. [2022-12-14 09:45:38,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 269 [2022-12-14 09:45:38,499 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:45:38,499 INFO L195 NwaCegarLoop]: trace histogram [17, 12, 12, 12, 12, 12, 12, 12, 12, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 09:45:38,499 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-14 09:45:38,500 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 09:45:38,500 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:45:38,500 INFO L85 PathProgramCache]: Analyzing trace with hash -760292537, now seen corresponding path program 1 times [2022-12-14 09:45:38,500 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:45:38,500 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1486458693] [2022-12-14 09:45:38,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:45:38,500 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:45:38,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:45:39,179 INFO L134 CoverageAnalysis]: Checked inductivity of 906 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 906 trivial. 0 not checked. [2022-12-14 09:45:39,179 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:45:39,179 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1486458693] [2022-12-14 09:45:39,180 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1486458693] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:45:39,180 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:45:39,180 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 09:45:39,180 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [463323844] [2022-12-14 09:45:39,180 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:45:39,181 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 09:45:39,181 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:45:39,181 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 09:45:39,181 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 09:45:39,182 INFO L87 Difference]: Start difference. First operand 4021 states and 5610 transitions. Second operand has 4 states, 4 states have (on average 19.0) internal successors, (76), 4 states have internal predecessors, (76), 2 states have call successors, (29), 1 states have call predecessors, (29), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2022-12-14 09:45:43,055 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 09:45:44,209 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:45:44,209 INFO L93 Difference]: Finished difference Result 5495 states and 7951 transitions. [2022-12-14 09:45:44,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 09:45:44,210 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.0) internal successors, (76), 4 states have internal predecessors, (76), 2 states have call successors, (29), 1 states have call predecessors, (29), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) Word has length 268 [2022-12-14 09:45:44,210 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:45:44,227 INFO L225 Difference]: With dead ends: 5495 [2022-12-14 09:45:44,227 INFO L226 Difference]: Without dead ends: 5493 [2022-12-14 09:45:44,229 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 09:45:44,230 INFO L413 NwaCegarLoop]: 1878 mSDtfsCounter, 1828 mSDsluCounter, 3049 mSDsCounter, 0 mSdLazyCounter, 911 mSolverCounterSat, 103 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1935 SdHoareTripleChecker+Valid, 4927 SdHoareTripleChecker+Invalid, 1015 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 103 IncrementalHoareTripleChecker+Valid, 911 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.8s IncrementalHoareTripleChecker+Time [2022-12-14 09:45:44,230 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1935 Valid, 4927 Invalid, 1015 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [103 Valid, 911 Invalid, 1 Unknown, 0 Unchecked, 4.8s Time] [2022-12-14 09:45:44,235 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5493 states. [2022-12-14 09:45:44,411 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5493 to 4021. [2022-12-14 09:45:44,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4021 states, 2621 states have (on average 1.3353681800839374) internal successors, (3500), 2661 states have internal predecessors, (3500), 1056 states have call successors, (1056), 344 states have call predecessors, (1056), 342 states have return successors, (1053), 1032 states have call predecessors, (1053), 1053 states have call successors, (1053) [2022-12-14 09:45:44,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4021 states to 4021 states and 5609 transitions. [2022-12-14 09:45:44,431 INFO L78 Accepts]: Start accepts. Automaton has 4021 states and 5609 transitions. Word has length 268 [2022-12-14 09:45:44,431 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:45:44,431 INFO L495 AbstractCegarLoop]: Abstraction has 4021 states and 5609 transitions. [2022-12-14 09:45:44,432 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.0) internal successors, (76), 4 states have internal predecessors, (76), 2 states have call successors, (29), 1 states have call predecessors, (29), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2022-12-14 09:45:44,432 INFO L276 IsEmpty]: Start isEmpty. Operand 4021 states and 5609 transitions. [2022-12-14 09:45:44,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 408 [2022-12-14 09:45:44,444 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:45:44,444 INFO L195 NwaCegarLoop]: trace histogram [20, 14, 14, 14, 14, 14, 14, 12, 12, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 09:45:44,445 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-14 09:45:44,445 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 09:45:44,445 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:45:44,445 INFO L85 PathProgramCache]: Analyzing trace with hash 2104614711, now seen corresponding path program 1 times [2022-12-14 09:45:44,445 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:45:44,446 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2105663800] [2022-12-14 09:45:44,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:45:44,446 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:45:44,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:45:44,871 INFO L134 CoverageAnalysis]: Checked inductivity of 1242 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1242 trivial. 0 not checked. [2022-12-14 09:45:44,871 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:45:44,872 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2105663800] [2022-12-14 09:45:44,872 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2105663800] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:45:44,872 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:45:44,872 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 09:45:44,872 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1540681405] [2022-12-14 09:45:44,872 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:45:44,873 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 09:45:44,873 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:45:44,874 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 09:45:44,874 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 09:45:44,875 INFO L87 Difference]: Start difference. First operand 4021 states and 5609 transitions. Second operand has 3 states, 3 states have (on average 41.666666666666664) internal successors, (125), 3 states have internal predecessors, (125), 3 states have call successors, (49), 1 states have call predecessors, (49), 1 states have return successors, (49), 3 states have call predecessors, (49), 3 states have call successors, (49) [2022-12-14 09:45:47,947 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 09:45:49,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:45:49,028 INFO L93 Difference]: Finished difference Result 11111 states and 15483 transitions. [2022-12-14 09:45:49,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 09:45:49,029 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 41.666666666666664) internal successors, (125), 3 states have internal predecessors, (125), 3 states have call successors, (49), 1 states have call predecessors, (49), 1 states have return successors, (49), 3 states have call predecessors, (49), 3 states have call successors, (49) Word has length 407 [2022-12-14 09:45:49,030 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:45:49,055 INFO L225 Difference]: With dead ends: 11111 [2022-12-14 09:45:49,055 INFO L226 Difference]: Without dead ends: 7467 [2022-12-14 09:45:49,067 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 09:45:49,068 INFO L413 NwaCegarLoop]: 1452 mSDtfsCounter, 1097 mSDsluCounter, 1172 mSDsCounter, 0 mSdLazyCounter, 449 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1097 SdHoareTripleChecker+Valid, 2624 SdHoareTripleChecker+Invalid, 451 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 449 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2022-12-14 09:45:49,068 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1097 Valid, 2624 Invalid, 451 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 449 Invalid, 1 Unknown, 0 Unchecked, 3.9s Time] [2022-12-14 09:45:49,079 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7467 states. [2022-12-14 09:45:49,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7467 to 7450. [2022-12-14 09:45:49,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7450 states, 4852 states have (on average 1.3361500412201155) internal successors, (6483), 4927 states have internal predecessors, (6483), 1946 states have call successors, (1946), 653 states have call predecessors, (1946), 650 states have return successors, (1949), 1898 states have call predecessors, (1949), 1943 states have call successors, (1949) [2022-12-14 09:45:49,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7450 states to 7450 states and 10378 transitions. [2022-12-14 09:45:49,489 INFO L78 Accepts]: Start accepts. Automaton has 7450 states and 10378 transitions. Word has length 407 [2022-12-14 09:45:49,489 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:45:49,490 INFO L495 AbstractCegarLoop]: Abstraction has 7450 states and 10378 transitions. [2022-12-14 09:45:49,490 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 41.666666666666664) internal successors, (125), 3 states have internal predecessors, (125), 3 states have call successors, (49), 1 states have call predecessors, (49), 1 states have return successors, (49), 3 states have call predecessors, (49), 3 states have call successors, (49) [2022-12-14 09:45:49,490 INFO L276 IsEmpty]: Start isEmpty. Operand 7450 states and 10378 transitions. [2022-12-14 09:45:49,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 409 [2022-12-14 09:45:49,504 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:45:49,504 INFO L195 NwaCegarLoop]: trace histogram [20, 14, 14, 14, 14, 14, 14, 12, 12, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 09:45:49,504 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-14 09:45:49,504 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 09:45:49,505 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:45:49,505 INFO L85 PathProgramCache]: Analyzing trace with hash -238592056, now seen corresponding path program 1 times [2022-12-14 09:45:49,505 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:45:49,505 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1954947456] [2022-12-14 09:45:49,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:45:49,505 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:45:49,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:45:49,973 INFO L134 CoverageAnalysis]: Checked inductivity of 1242 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1242 trivial. 0 not checked. [2022-12-14 09:45:49,973 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:45:49,973 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1954947456] [2022-12-14 09:45:49,973 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1954947456] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:45:49,974 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:45:49,974 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 09:45:49,974 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [75901059] [2022-12-14 09:45:49,974 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:45:49,975 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 09:45:49,975 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:45:49,975 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 09:45:49,976 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 09:45:49,976 INFO L87 Difference]: Start difference. First operand 7450 states and 10378 transitions. Second operand has 3 states, 3 states have (on average 42.0) internal successors, (126), 3 states have internal predecessors, (126), 2 states have call successors, (49), 1 states have call predecessors, (49), 2 states have return successors, (49), 2 states have call predecessors, (49), 2 states have call successors, (49) [2022-12-14 09:45:53,214 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 09:45:53,442 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:45:53,442 INFO L93 Difference]: Finished difference Result 11089 states and 15476 transitions. [2022-12-14 09:45:53,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 09:45:53,442 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 42.0) internal successors, (126), 3 states have internal predecessors, (126), 2 states have call successors, (49), 1 states have call predecessors, (49), 2 states have return successors, (49), 2 states have call predecessors, (49), 2 states have call successors, (49) Word has length 408 [2022-12-14 09:45:53,443 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:45:53,464 INFO L225 Difference]: With dead ends: 11089 [2022-12-14 09:45:53,464 INFO L226 Difference]: Without dead ends: 7461 [2022-12-14 09:45:53,472 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 09:45:53,472 INFO L413 NwaCegarLoop]: 1207 mSDtfsCounter, 9 mSDsluCounter, 1201 mSDsCounter, 0 mSdLazyCounter, 451 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 2408 SdHoareTripleChecker+Invalid, 453 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 451 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2022-12-14 09:45:53,473 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 2408 Invalid, 453 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 451 Invalid, 1 Unknown, 0 Unchecked, 3.3s Time] [2022-12-14 09:45:53,479 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7461 states. [2022-12-14 09:45:53,703 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7461 to 7455. [2022-12-14 09:45:53,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7455 states, 4856 states have (on average 1.3360790774299836) internal successors, (6488), 4931 states have internal predecessors, (6488), 1947 states have call successors, (1947), 653 states have call predecessors, (1947), 650 states have return successors, (1950), 1899 states have call predecessors, (1950), 1944 states have call successors, (1950) [2022-12-14 09:45:53,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7455 states to 7455 states and 10385 transitions. [2022-12-14 09:45:53,727 INFO L78 Accepts]: Start accepts. Automaton has 7455 states and 10385 transitions. Word has length 408 [2022-12-14 09:45:53,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:45:53,727 INFO L495 AbstractCegarLoop]: Abstraction has 7455 states and 10385 transitions. [2022-12-14 09:45:53,728 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 42.0) internal successors, (126), 3 states have internal predecessors, (126), 2 states have call successors, (49), 1 states have call predecessors, (49), 2 states have return successors, (49), 2 states have call predecessors, (49), 2 states have call successors, (49) [2022-12-14 09:45:53,728 INFO L276 IsEmpty]: Start isEmpty. Operand 7455 states and 10385 transitions. [2022-12-14 09:45:53,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 424 [2022-12-14 09:45:53,740 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:45:53,740 INFO L195 NwaCegarLoop]: trace histogram [20, 14, 14, 14, 14, 14, 14, 12, 12, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 09:45:53,740 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-14 09:45:53,741 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 09:45:53,741 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:45:53,741 INFO L85 PathProgramCache]: Analyzing trace with hash 2077536724, now seen corresponding path program 1 times [2022-12-14 09:45:53,741 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:45:53,741 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1933037427] [2022-12-14 09:45:53,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:45:53,742 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:45:53,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:45:54,301 INFO L134 CoverageAnalysis]: Checked inductivity of 1258 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1258 trivial. 0 not checked. [2022-12-14 09:45:54,301 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:45:54,301 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1933037427] [2022-12-14 09:45:54,302 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1933037427] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:45:54,302 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:45:54,302 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 09:45:54,302 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [168456470] [2022-12-14 09:45:54,302 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:45:54,303 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 09:45:54,303 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:45:54,304 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 09:45:54,304 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 09:45:54,304 INFO L87 Difference]: Start difference. First operand 7455 states and 10385 transitions. Second operand has 3 states, 3 states have (on average 44.333333333333336) internal successors, (133), 3 states have internal predecessors, (133), 2 states have call successors, (52), 1 states have call predecessors, (52), 1 states have return successors, (52), 2 states have call predecessors, (52), 2 states have call successors, (52) [2022-12-14 09:45:58,193 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 09:45:58,547 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:45:58,547 INFO L93 Difference]: Finished difference Result 12647 states and 17961 transitions. [2022-12-14 09:45:58,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 09:45:58,547 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.333333333333336) internal successors, (133), 3 states have internal predecessors, (133), 2 states have call successors, (52), 1 states have call predecessors, (52), 1 states have return successors, (52), 2 states have call predecessors, (52), 2 states have call successors, (52) Word has length 423 [2022-12-14 09:45:58,548 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:45:58,569 INFO L225 Difference]: With dead ends: 12647 [2022-12-14 09:45:58,569 INFO L226 Difference]: Without dead ends: 9014 [2022-12-14 09:45:58,576 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 09:45:58,577 INFO L413 NwaCegarLoop]: 1724 mSDtfsCounter, 391 mSDsluCounter, 1326 mSDsCounter, 0 mSdLazyCounter, 536 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 536 SdHoareTripleChecker+Valid, 3050 SdHoareTripleChecker+Invalid, 538 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 536 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2022-12-14 09:45:58,577 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [536 Valid, 3050 Invalid, 538 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 536 Invalid, 1 Unknown, 0 Unchecked, 4.0s Time] [2022-12-14 09:45:58,583 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9014 states. [2022-12-14 09:45:58,877 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9014 to 7471. [2022-12-14 09:45:58,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7471 states, 4867 states have (on average 1.335935894801726) internal successors, (6502), 4942 states have internal predecessors, (6502), 1952 states have call successors, (1952), 653 states have call predecessors, (1952), 650 states have return successors, (1955), 1904 states have call predecessors, (1955), 1949 states have call successors, (1955) [2022-12-14 09:45:58,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7471 states to 7471 states and 10409 transitions. [2022-12-14 09:45:58,900 INFO L78 Accepts]: Start accepts. Automaton has 7471 states and 10409 transitions. Word has length 423 [2022-12-14 09:45:58,900 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:45:58,900 INFO L495 AbstractCegarLoop]: Abstraction has 7471 states and 10409 transitions. [2022-12-14 09:45:58,901 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.333333333333336) internal successors, (133), 3 states have internal predecessors, (133), 2 states have call successors, (52), 1 states have call predecessors, (52), 1 states have return successors, (52), 2 states have call predecessors, (52), 2 states have call successors, (52) [2022-12-14 09:45:58,901 INFO L276 IsEmpty]: Start isEmpty. Operand 7471 states and 10409 transitions. [2022-12-14 09:45:58,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 440 [2022-12-14 09:45:58,912 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:45:58,912 INFO L195 NwaCegarLoop]: trace histogram [20, 14, 14, 14, 14, 14, 14, 12, 12, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 09:45:58,912 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-12-14 09:45:58,913 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 09:45:58,913 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:45:58,913 INFO L85 PathProgramCache]: Analyzing trace with hash -113793868, now seen corresponding path program 1 times [2022-12-14 09:45:58,913 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:45:58,913 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1574377772] [2022-12-14 09:45:58,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:45:58,913 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:45:59,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:45:59,563 INFO L134 CoverageAnalysis]: Checked inductivity of 1287 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1286 trivial. 0 not checked. [2022-12-14 09:45:59,564 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:45:59,564 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1574377772] [2022-12-14 09:45:59,564 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1574377772] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 09:45:59,564 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [363402696] [2022-12-14 09:45:59,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:45:59,564 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 09:45:59,565 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aec296c-b071-474f-a22c-5008d2460733/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 09:45:59,566 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aec296c-b071-474f-a22c-5008d2460733/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 09:45:59,567 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aec296c-b071-474f-a22c-5008d2460733/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-14 09:46:00,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:46:00,810 INFO L263 TraceCheckSpWp]: Trace formula consists of 7854 conjuncts, 4 conjunts are in the unsatisfiable core [2022-12-14 09:46:00,834 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 09:46:00,921 INFO L134 CoverageAnalysis]: Checked inductivity of 1287 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1287 trivial. 0 not checked. [2022-12-14 09:46:00,922 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 09:46:00,922 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [363402696] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:46:00,922 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-14 09:46:00,922 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-12-14 09:46:00,922 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1984808228] [2022-12-14 09:46:00,923 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:46:00,924 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 09:46:00,924 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:46:00,924 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 09:46:00,925 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-12-14 09:46:00,925 INFO L87 Difference]: Start difference. First operand 7471 states and 10409 transitions. Second operand has 5 states, 5 states have (on average 27.2) internal successors, (136), 5 states have internal predecessors, (136), 3 states have call successors, (53), 2 states have call predecessors, (53), 2 states have return successors, (53), 3 states have call predecessors, (53), 3 states have call successors, (53) [2022-12-14 09:46:06,238 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 09:46:07,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:46:07,512 INFO L93 Difference]: Finished difference Result 20291 states and 30092 transitions. [2022-12-14 09:46:07,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 09:46:07,513 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 27.2) internal successors, (136), 5 states have internal predecessors, (136), 3 states have call successors, (53), 2 states have call predecessors, (53), 2 states have return successors, (53), 3 states have call predecessors, (53), 3 states have call successors, (53) Word has length 439 [2022-12-14 09:46:07,513 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:46:07,552 INFO L225 Difference]: With dead ends: 20291 [2022-12-14 09:46:07,552 INFO L226 Difference]: Without dead ends: 16642 [2022-12-14 09:46:07,560 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 446 GetRequests, 439 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2022-12-14 09:46:07,561 INFO L413 NwaCegarLoop]: 2193 mSDtfsCounter, 1210 mSDsluCounter, 5608 mSDsCounter, 0 mSdLazyCounter, 1452 mSolverCounterSat, 515 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1406 SdHoareTripleChecker+Valid, 7801 SdHoareTripleChecker+Invalid, 1968 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 515 IncrementalHoareTripleChecker+Valid, 1452 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2022-12-14 09:46:07,561 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1406 Valid, 7801 Invalid, 1968 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [515 Valid, 1452 Invalid, 1 Unknown, 0 Unchecked, 5.8s Time] [2022-12-14 09:46:07,574 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16642 states. [2022-12-14 09:46:08,017 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16642 to 7475. [2022-12-14 09:46:08,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7475 states, 4871 states have (on average 1.3356600287415314) internal successors, (6506), 4946 states have internal predecessors, (6506), 1952 states have call successors, (1952), 653 states have call predecessors, (1952), 650 states have return successors, (1955), 1904 states have call predecessors, (1955), 1949 states have call successors, (1955) [2022-12-14 09:46:08,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7475 states to 7475 states and 10413 transitions. [2022-12-14 09:46:08,045 INFO L78 Accepts]: Start accepts. Automaton has 7475 states and 10413 transitions. Word has length 439 [2022-12-14 09:46:08,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:46:08,045 INFO L495 AbstractCegarLoop]: Abstraction has 7475 states and 10413 transitions. [2022-12-14 09:46:08,045 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 27.2) internal successors, (136), 5 states have internal predecessors, (136), 3 states have call successors, (53), 2 states have call predecessors, (53), 2 states have return successors, (53), 3 states have call predecessors, (53), 3 states have call successors, (53) [2022-12-14 09:46:08,045 INFO L276 IsEmpty]: Start isEmpty. Operand 7475 states and 10413 transitions. [2022-12-14 09:46:08,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 470 [2022-12-14 09:46:08,055 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:46:08,056 INFO L195 NwaCegarLoop]: trace histogram [22, 16, 16, 16, 16, 16, 16, 12, 12, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 09:46:08,076 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aec296c-b071-474f-a22c-5008d2460733/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-14 09:46:08,256 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aec296c-b071-474f-a22c-5008d2460733/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 09:46:08,257 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 09:46:08,257 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:46:08,257 INFO L85 PathProgramCache]: Analyzing trace with hash 2009126016, now seen corresponding path program 1 times [2022-12-14 09:46:08,257 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:46:08,257 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [612710704] [2022-12-14 09:46:08,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:46:08,257 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:46:08,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:46:08,999 INFO L134 CoverageAnalysis]: Checked inductivity of 1555 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1554 trivial. 0 not checked. [2022-12-14 09:46:08,999 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:46:08,999 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [612710704] [2022-12-14 09:46:09,000 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [612710704] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 09:46:09,000 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1162751721] [2022-12-14 09:46:09,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:46:09,000 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 09:46:09,000 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aec296c-b071-474f-a22c-5008d2460733/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 09:46:09,001 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aec296c-b071-474f-a22c-5008d2460733/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 09:46:09,002 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aec296c-b071-474f-a22c-5008d2460733/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-14 09:46:10,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:46:10,147 INFO L263 TraceCheckSpWp]: Trace formula consists of 7995 conjuncts, 5 conjunts are in the unsatisfiable core [2022-12-14 09:46:10,159 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 09:46:10,209 INFO L134 CoverageAnalysis]: Checked inductivity of 1555 backedges. 64 proven. 0 refuted. 0 times theorem prover too weak. 1491 trivial. 0 not checked. [2022-12-14 09:46:10,209 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 09:46:10,209 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1162751721] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:46:10,209 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-14 09:46:10,210 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [4] total 8 [2022-12-14 09:46:10,210 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1502063185] [2022-12-14 09:46:10,210 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:46:10,211 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-14 09:46:10,211 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:46:10,211 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-14 09:46:10,211 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-12-14 09:46:10,212 INFO L87 Difference]: Start difference. First operand 7475 states and 10413 transitions. Second operand has 6 states, 5 states have (on average 30.4) internal successors, (152), 5 states have internal predecessors, (152), 2 states have call successors, (59), 2 states have call predecessors, (59), 3 states have return successors, (59), 3 states have call predecessors, (59), 2 states have call successors, (59) [2022-12-14 09:46:15,633 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 09:46:15,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:46:15,920 INFO L93 Difference]: Finished difference Result 11168 states and 15598 transitions. [2022-12-14 09:46:15,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-14 09:46:15,920 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 30.4) internal successors, (152), 5 states have internal predecessors, (152), 2 states have call successors, (59), 2 states have call predecessors, (59), 3 states have return successors, (59), 3 states have call predecessors, (59), 2 states have call successors, (59) Word has length 469 [2022-12-14 09:46:15,920 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:46:15,937 INFO L225 Difference]: With dead ends: 11168 [2022-12-14 09:46:15,937 INFO L226 Difference]: Without dead ends: 7517 [2022-12-14 09:46:15,945 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 474 GetRequests, 466 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2022-12-14 09:46:15,945 INFO L413 NwaCegarLoop]: 1213 mSDtfsCounter, 9 mSDsluCounter, 4832 mSDsCounter, 0 mSdLazyCounter, 1139 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 6045 SdHoareTripleChecker+Invalid, 1140 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1139 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2022-12-14 09:46:15,945 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 6045 Invalid, 1140 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1139 Invalid, 1 Unknown, 0 Unchecked, 5.4s Time] [2022-12-14 09:46:15,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7517 states. [2022-12-14 09:46:16,312 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7517 to 7482. [2022-12-14 09:46:16,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7482 states, 4877 states have (on average 1.3356571662907526) internal successors, (6514), 4951 states have internal predecessors, (6514), 1952 states have call successors, (1952), 653 states have call predecessors, (1952), 651 states have return successors, (1964), 1906 states have call predecessors, (1964), 1949 states have call successors, (1964) [2022-12-14 09:46:16,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7482 states to 7482 states and 10430 transitions. [2022-12-14 09:46:16,332 INFO L78 Accepts]: Start accepts. Automaton has 7482 states and 10430 transitions. Word has length 469 [2022-12-14 09:46:16,332 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:46:16,332 INFO L495 AbstractCegarLoop]: Abstraction has 7482 states and 10430 transitions. [2022-12-14 09:46:16,333 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 30.4) internal successors, (152), 5 states have internal predecessors, (152), 2 states have call successors, (59), 2 states have call predecessors, (59), 3 states have return successors, (59), 3 states have call predecessors, (59), 2 states have call successors, (59) [2022-12-14 09:46:16,333 INFO L276 IsEmpty]: Start isEmpty. Operand 7482 states and 10430 transitions. [2022-12-14 09:46:16,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 471 [2022-12-14 09:46:16,364 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:46:16,364 INFO L195 NwaCegarLoop]: trace histogram [22, 16, 16, 16, 16, 16, 16, 12, 12, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 09:46:16,381 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aec296c-b071-474f-a22c-5008d2460733/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-12-14 09:46:16,565 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aec296c-b071-474f-a22c-5008d2460733/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-12-14 09:46:16,566 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 09:46:16,567 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:46:16,567 INFO L85 PathProgramCache]: Analyzing trace with hash -111654107, now seen corresponding path program 1 times [2022-12-14 09:46:16,567 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:46:16,567 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1864854360] [2022-12-14 09:46:16,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:46:16,568 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:46:16,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:46:17,304 INFO L134 CoverageAnalysis]: Checked inductivity of 1555 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1554 trivial. 0 not checked. [2022-12-14 09:46:17,304 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:46:17,304 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1864854360] [2022-12-14 09:46:17,304 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1864854360] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 09:46:17,304 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1355544772] [2022-12-14 09:46:17,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:46:17,304 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 09:46:17,305 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aec296c-b071-474f-a22c-5008d2460733/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 09:46:17,305 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aec296c-b071-474f-a22c-5008d2460733/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 09:46:17,306 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aec296c-b071-474f-a22c-5008d2460733/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-12-14 09:46:18,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:46:18,569 INFO L263 TraceCheckSpWp]: Trace formula consists of 7999 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 09:46:18,578 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 09:46:18,608 INFO L134 CoverageAnalysis]: Checked inductivity of 1555 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1554 trivial. 0 not checked. [2022-12-14 09:46:18,608 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 09:46:18,868 INFO L134 CoverageAnalysis]: Checked inductivity of 1555 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1554 trivial. 0 not checked. [2022-12-14 09:46:18,868 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1355544772] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 09:46:18,868 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2064377919] [2022-12-14 09:46:18,886 INFO L159 IcfgInterpreter]: Started Sifa with 213 locations of interest [2022-12-14 09:46:18,886 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 09:46:18,889 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 09:46:18,892 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 09:46:18,893 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs