./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-challenges/linux-3.14__complex_emg__linux-kernel-locking-spinlock__drivers-net-ethernet-dec-tulip-uli526x.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 38b53e6a Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f5ca670-98b6-43f1-a121-2c1679f13ad8/bin/utaipan-ByfvJB40ur/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f5ca670-98b6-43f1-a121-2c1679f13ad8/bin/utaipan-ByfvJB40ur/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f5ca670-98b6-43f1-a121-2c1679f13ad8/bin/utaipan-ByfvJB40ur/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f5ca670-98b6-43f1-a121-2c1679f13ad8/bin/utaipan-ByfvJB40ur/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-challenges/linux-3.14__complex_emg__linux-kernel-locking-spinlock__drivers-net-ethernet-dec-tulip-uli526x.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f5ca670-98b6-43f1-a121-2c1679f13ad8/bin/utaipan-ByfvJB40ur/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f5ca670-98b6-43f1-a121-2c1679f13ad8/bin/utaipan-ByfvJB40ur --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 b230ba173626e1a1717879ee489b2ae4510c44810563ac66116e22604ac558a2 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-38b53e6 [2022-11-26 00:41:52,841 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-26 00:41:52,844 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-26 00:41:52,869 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-26 00:41:52,869 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-26 00:41:52,870 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-26 00:41:52,872 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-26 00:41:52,873 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-26 00:41:52,875 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-26 00:41:52,876 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-26 00:41:52,877 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-26 00:41:52,878 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-26 00:41:52,879 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-26 00:41:52,880 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-26 00:41:52,881 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-26 00:41:52,882 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-26 00:41:52,883 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-26 00:41:52,884 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-26 00:41:52,886 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-26 00:41:52,888 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-26 00:41:52,890 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-26 00:41:52,896 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-26 00:41:52,897 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-26 00:41:52,898 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-26 00:41:52,902 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-26 00:41:52,903 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-26 00:41:52,903 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-26 00:41:52,904 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-26 00:41:52,905 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-26 00:41:52,906 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-26 00:41:52,906 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-26 00:41:52,907 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-26 00:41:52,908 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-26 00:41:52,909 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-26 00:41:52,910 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-26 00:41:52,910 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-26 00:41:52,920 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-26 00:41:52,920 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-26 00:41:52,920 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-26 00:41:52,921 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-26 00:41:52,922 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-26 00:41:52,924 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f5ca670-98b6-43f1-a121-2c1679f13ad8/bin/utaipan-ByfvJB40ur/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-26 00:41:52,964 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-26 00:41:52,964 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-26 00:41:52,965 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-26 00:41:52,965 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-26 00:41:52,965 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-26 00:41:52,966 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-26 00:41:52,966 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-26 00:41:52,966 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-26 00:41:52,977 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-26 00:41:52,977 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-26 00:41:52,978 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-26 00:41:52,979 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-26 00:41:52,979 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-26 00:41:52,979 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-26 00:41:52,979 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-26 00:41:52,980 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-26 00:41:52,980 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-26 00:41:52,980 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-26 00:41:52,981 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-26 00:41:52,981 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-26 00:41:52,981 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-26 00:41:52,981 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-26 00:41:52,982 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-26 00:41:52,982 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-26 00:41:52,982 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-26 00:41:52,983 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-26 00:41:52,983 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-26 00:41:52,984 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-26 00:41:52,984 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-26 00:41:52,984 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-26 00:41:52,984 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-26 00:41:52,985 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-26 00:41:52,985 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-26 00:41:52,985 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-26 00:41:52,985 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-26 00:41:52,985 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-26 00:41:52,986 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-26 00:41:52,986 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-26 00:41:52,986 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_7f5ca670-98b6-43f1-a121-2c1679f13ad8/bin/utaipan-ByfvJB40ur/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f5ca670-98b6-43f1-a121-2c1679f13ad8/bin/utaipan-ByfvJB40ur Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b230ba173626e1a1717879ee489b2ae4510c44810563ac66116e22604ac558a2 [2022-11-26 00:41:53,282 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-26 00:41:53,328 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-26 00:41:53,331 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-26 00:41:53,333 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-26 00:41:53,333 INFO L275 PluginConnector]: CDTParser initialized [2022-11-26 00:41:53,335 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f5ca670-98b6-43f1-a121-2c1679f13ad8/bin/utaipan-ByfvJB40ur/../../sv-benchmarks/c/ldv-challenges/linux-3.14__complex_emg__linux-kernel-locking-spinlock__drivers-net-ethernet-dec-tulip-uli526x.cil.i [2022-11-26 00:41:56,393 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-26 00:41:57,099 INFO L351 CDTParser]: Found 1 translation units. [2022-11-26 00:41:57,100 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f5ca670-98b6-43f1-a121-2c1679f13ad8/sv-benchmarks/c/ldv-challenges/linux-3.14__complex_emg__linux-kernel-locking-spinlock__drivers-net-ethernet-dec-tulip-uli526x.cil.i [2022-11-26 00:41:57,177 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f5ca670-98b6-43f1-a121-2c1679f13ad8/bin/utaipan-ByfvJB40ur/data/a274251c6/ba3a186934bb48339af82ab967ee6bb7/FLAGf6d9dbb2a [2022-11-26 00:41:57,197 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f5ca670-98b6-43f1-a121-2c1679f13ad8/bin/utaipan-ByfvJB40ur/data/a274251c6/ba3a186934bb48339af82ab967ee6bb7 [2022-11-26 00:41:57,202 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-26 00:41:57,204 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-26 00:41:57,206 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-26 00:41:57,207 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-26 00:41:57,211 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-26 00:41:57,213 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:41:57" (1/1) ... [2022-11-26 00:41:57,214 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7d501c10 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:41:57, skipping insertion in model container [2022-11-26 00:41:57,214 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:41:57" (1/1) ... [2022-11-26 00:41:57,222 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-26 00:41:57,406 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-26 00:41:58,279 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_unlock_irqrestore [2022-11-26 00:41:58,462 WARN L623 FunctionHandler]: Unknown extern function __phys_addr [2022-11-26 00:41:58,469 WARN L623 FunctionHandler]: Unknown extern function __phys_addr [2022-11-26 00:41:58,470 WARN L623 FunctionHandler]: Unknown extern function debug_dma_map_page [2022-11-26 00:41:58,481 WARN L623 FunctionHandler]: Unknown extern function debug_dma_unmap_page [2022-11-26 00:41:58,521 WARN L623 FunctionHandler]: Unknown extern function debug_dma_alloc_coherent [2022-11-26 00:41:58,532 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-11-26 00:41:58,536 WARN L623 FunctionHandler]: Unknown extern function debug_dma_free_coherent [2022-11-26 00:41:58,589 WARN L623 FunctionHandler]: Unknown extern function __netdev_alloc_skb [2022-11-26 00:41:58,644 WARN L623 FunctionHandler]: Unknown extern function netpoll_trap [2022-11-26 00:41:58,645 WARN L623 FunctionHandler]: Unknown extern function __netif_schedule [2022-11-26 00:41:58,657 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-11-26 00:41:58,658 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:41:58,777 WARN L623 FunctionHandler]: Unknown extern function __pci_enable_wake [2022-11-26 00:41:58,833 WARN L623 FunctionHandler]: Unknown extern function dma_set_mask [2022-11-26 00:41:58,859 WARN L623 FunctionHandler]: Unknown extern function request_threaded_irq [2022-11-26 00:41:59,020 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-11-26 00:41:59,021 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-26 00:41:59,022 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-11-26 00:41:59,022 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-26 00:41:59,023 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-11-26 00:41:59,023 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-26 00:41:59,029 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:41:59,031 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:41:59,033 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:41:59,034 WARN L623 FunctionHandler]: Unknown extern function pci_enable_device [2022-11-26 00:41:59,034 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:41:59,039 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:41:59,040 WARN L623 FunctionHandler]: Unknown extern function pci_request_regions [2022-11-26 00:41:59,043 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:41:59,051 WARN L623 FunctionHandler]: Unknown extern function pci_iomap [2022-11-26 00:41:59,053 WARN L623 FunctionHandler]: Unknown extern function __raw_spin_lock_init [2022-11-26 00:41:59,059 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-11-26 00:41:59,059 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-11-26 00:41:59,060 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-11-26 00:41:59,060 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-11-26 00:41:59,061 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-11-26 00:41:59,062 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-11-26 00:41:59,062 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-11-26 00:41:59,063 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-11-26 00:41:59,065 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-11-26 00:41:59,066 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-11-26 00:41:59,066 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-26 00:41:59,067 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-11-26 00:41:59,068 WARN L623 FunctionHandler]: Unknown extern function pci_set_master [2022-11-26 00:41:59,069 WARN L623 FunctionHandler]: Unknown extern function pci_iounmap [2022-11-26 00:41:59,070 WARN L623 FunctionHandler]: Unknown extern function pci_release_regions [2022-11-26 00:41:59,070 WARN L623 FunctionHandler]: Unknown extern function pci_disable_device [2022-11-26 00:41:59,079 WARN L623 FunctionHandler]: Unknown extern function pci_iounmap [2022-11-26 00:41:59,081 WARN L623 FunctionHandler]: Unknown extern function pci_release_regions [2022-11-26 00:41:59,082 WARN L623 FunctionHandler]: Unknown extern function pci_disable_device [2022-11-26 00:41:59,083 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:41:59,084 WARN L623 FunctionHandler]: Unknown extern function netif_carrier_off [2022-11-26 00:41:59,087 WARN L623 FunctionHandler]: Unknown extern function init_timer_key [2022-11-26 00:41:59,090 WARN L623 FunctionHandler]: Unknown extern function add_timer [2022-11-26 00:41:59,091 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:41:59,092 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-11-26 00:41:59,092 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-26 00:41:59,093 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-11-26 00:41:59,093 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-26 00:41:59,105 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:41:59,107 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-26 00:41:59,107 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-26 00:41:59,109 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-11-26 00:41:59,109 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-11-26 00:41:59,111 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:41:59,111 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-11-26 00:41:59,112 WARN L623 FunctionHandler]: Unknown extern function consume_skb [2022-11-26 00:41:59,113 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-11-26 00:41:59,113 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-11-26 00:41:59,115 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-11-26 00:41:59,116 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-11-26 00:41:59,117 WARN L623 FunctionHandler]: Unknown extern function consume_skb [2022-11-26 00:41:59,127 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-11-26 00:41:59,127 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-26 00:41:59,129 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-11-26 00:41:59,130 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-11-26 00:41:59,130 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-11-26 00:41:59,131 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-11-26 00:41:59,132 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:41:59,134 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-11-26 00:41:59,154 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:41:59,157 WARN L623 FunctionHandler]: Unknown extern function skb_put [2022-11-26 00:41:59,158 WARN L623 FunctionHandler]: Unknown extern function skb_put [2022-11-26 00:41:59,159 WARN L623 FunctionHandler]: Unknown extern function skb_put [2022-11-26 00:41:59,159 WARN L623 FunctionHandler]: Unknown extern function eth_type_trans [2022-11-26 00:41:59,160 WARN L623 FunctionHandler]: Unknown extern function netif_rx [2022-11-26 00:41:59,160 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:41:59,165 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:41:59,168 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:41:59,170 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:41:59,173 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:41:59,185 WARN L623 FunctionHandler]: Unknown extern function strlcpy [2022-11-26 00:41:59,186 WARN L623 FunctionHandler]: Unknown extern function strlcpy [2022-11-26 00:41:59,189 WARN L623 FunctionHandler]: Unknown extern function strlcpy [2022-11-26 00:41:59,208 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-11-26 00:41:59,213 WARN L623 FunctionHandler]: Unknown extern function dev_trans_start [2022-11-26 00:41:59,214 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-11-26 00:41:59,218 WARN L623 FunctionHandler]: Unknown extern function dev_trans_start [2022-11-26 00:41:59,219 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-11-26 00:41:59,220 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:41:59,221 WARN L623 FunctionHandler]: Unknown extern function add_timer [2022-11-26 00:41:59,223 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:41:59,223 WARN L623 FunctionHandler]: Unknown extern function netif_carrier_off [2022-11-26 00:41:59,224 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-11-26 00:41:59,227 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:41:59,232 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-11-26 00:41:59,234 WARN L623 FunctionHandler]: Unknown extern function netif_carrier_on [2022-11-26 00:41:59,235 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-11-26 00:41:59,236 WARN L623 FunctionHandler]: Unknown extern function netif_carrier_off [2022-11-26 00:41:59,236 WARN L623 FunctionHandler]: Unknown extern function add_timer [2022-11-26 00:41:59,241 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-11-26 00:41:59,241 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-11-26 00:41:59,242 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-11-26 00:41:59,244 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:41:59,250 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:41:59,258 WARN L623 FunctionHandler]: Unknown extern function pci_save_state [2022-11-26 00:41:59,266 WARN L623 FunctionHandler]: Unknown extern function netif_device_detach [2022-11-26 00:41:59,266 WARN L623 FunctionHandler]: Unknown extern function pci_choose_state [2022-11-26 00:41:59,266 WARN L623 FunctionHandler]: Unknown extern function pci_set_power_state [2022-11-26 00:41:59,267 WARN L623 FunctionHandler]: Unknown extern function netif_device_attach [2022-11-26 00:41:59,271 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:41:59,272 WARN L623 FunctionHandler]: Unknown extern function pci_restore_state [2022-11-26 00:41:59,272 WARN L623 FunctionHandler]: Unknown extern function pci_set_power_state [2022-11-26 00:41:59,273 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-11-26 00:41:59,273 WARN L623 FunctionHandler]: Unknown extern function netif_device_attach [2022-11-26 00:41:59,273 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:41:59,274 WARN L623 FunctionHandler]: Unknown extern function consume_skb [2022-11-26 00:41:59,275 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:41:59,277 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:41:59,277 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-11-26 00:41:59,278 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-11-26 00:41:59,284 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-11-26 00:41:59,284 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-26 00:41:59,286 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:41:59,292 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-11-26 00:41:59,293 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-11-26 00:41:59,299 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-11-26 00:41:59,300 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-11-26 00:41:59,300 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-11-26 00:41:59,301 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-11-26 00:41:59,301 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-26 00:41:59,301 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-11-26 00:41:59,302 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-11-26 00:41:59,303 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-26 00:41:59,304 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-11-26 00:41:59,310 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:41:59,315 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-26 00:41:59,325 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-11-26 00:41:59,325 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-26 00:41:59,326 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-11-26 00:41:59,328 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-11-26 00:41:59,329 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-26 00:41:59,329 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-11-26 00:41:59,330 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-26 00:41:59,336 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-11-26 00:41:59,336 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-26 00:41:59,337 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-11-26 00:41:59,337 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-26 00:41:59,337 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-11-26 00:41:59,338 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-26 00:41:59,338 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-11-26 00:41:59,338 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-11-26 00:41:59,339 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-26 00:41:59,346 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:41:59,346 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:41:59,352 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:41:59,610 WARN L623 FunctionHandler]: Unknown extern function eth_change_mtu [2022-11-26 00:41:59,611 WARN L623 FunctionHandler]: Unknown extern function eth_mac_addr [2022-11-26 00:41:59,612 WARN L623 FunctionHandler]: Unknown extern function eth_validate_addr [2022-11-26 00:41:59,614 WARN L623 FunctionHandler]: Unknown extern function ldv_initialize [2022-11-26 00:41:59,618 WARN L623 FunctionHandler]: Unknown extern function ldv_switch_to_interrupt_context [2022-11-26 00:41:59,618 WARN L623 FunctionHandler]: Unknown extern function ldv_switch_to_process_context [2022-11-26 00:41:59,626 WARN L623 FunctionHandler]: Unknown extern function ldv_pre_probe [2022-11-26 00:41:59,628 WARN L623 FunctionHandler]: Unknown extern function ldv_pre_register_netdev [2022-11-26 00:41:59,635 WARN L623 FunctionHandler]: Unknown extern function ldv_switch_to_interrupt_context [2022-11-26 00:41:59,636 WARN L623 FunctionHandler]: Unknown extern function ldv_switch_to_process_context [2022-11-26 00:41:59,638 WARN L623 FunctionHandler]: Unknown extern function alloc_etherdev_mqs [2022-11-26 00:41:59,638 WARN L623 FunctionHandler]: Unknown extern function register_netdev [2022-11-26 00:41:59,639 WARN L623 FunctionHandler]: Unknown extern function free_netdev [2022-11-26 00:41:59,639 WARN L623 FunctionHandler]: Unknown extern function unregister_netdev [2022-11-26 00:41:59,640 WARN L623 FunctionHandler]: Unknown extern function free_netdev [2022-11-26 00:41:59,641 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-11-26 00:41:59,641 WARN L623 FunctionHandler]: Unknown extern function del_timer_sync [2022-11-26 00:41:59,642 WARN L623 FunctionHandler]: Unknown extern function free_irq [2022-11-26 00:41:59,642 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-11-26 00:41:59,642 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-11-26 00:41:59,643 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-11-26 00:41:59,643 WARN L623 FunctionHandler]: Unknown extern function __pci_register_driver [2022-11-26 00:41:59,644 WARN L623 FunctionHandler]: Unknown extern function pci_unregister_driver [2022-11-26 00:41:59,687 WARN L623 FunctionHandler]: Unknown extern function ldv_check_alloc_flags [2022-11-26 00:41:59,687 WARN L623 FunctionHandler]: Unknown extern function ldv_after_alloc [2022-11-26 00:41:59,694 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-26 00:42:00,170 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_7f5ca670-98b6-43f1-a121-2c1679f13ad8/sv-benchmarks/c/ldv-challenges/linux-3.14__complex_emg__linux-kernel-locking-spinlock__drivers-net-ethernet-dec-tulip-uli526x.cil.i[309274,309287] [2022-11-26 00:42:00,173 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_7f5ca670-98b6-43f1-a121-2c1679f13ad8/sv-benchmarks/c/ldv-challenges/linux-3.14__complex_emg__linux-kernel-locking-spinlock__drivers-net-ethernet-dec-tulip-uli526x.cil.i[309443,309456] [2022-11-26 00:42:00,174 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_7f5ca670-98b6-43f1-a121-2c1679f13ad8/sv-benchmarks/c/ldv-challenges/linux-3.14__complex_emg__linux-kernel-locking-spinlock__drivers-net-ethernet-dec-tulip-uli526x.cil.i[309610,309623] [2022-11-26 00:42:00,174 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_7f5ca670-98b6-43f1-a121-2c1679f13ad8/sv-benchmarks/c/ldv-challenges/linux-3.14__complex_emg__linux-kernel-locking-spinlock__drivers-net-ethernet-dec-tulip-uli526x.cil.i[309778,309791] [2022-11-26 00:42:00,193 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-26 00:42:00,220 INFO L203 MainTranslator]: Completed pre-run [2022-11-26 00:42:00,375 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_unlock_irqrestore [2022-11-26 00:42:00,390 WARN L623 FunctionHandler]: Unknown extern function __phys_addr [2022-11-26 00:42:00,391 WARN L623 FunctionHandler]: Unknown extern function __phys_addr [2022-11-26 00:42:00,392 WARN L623 FunctionHandler]: Unknown extern function debug_dma_map_page [2022-11-26 00:42:00,393 WARN L623 FunctionHandler]: Unknown extern function debug_dma_unmap_page [2022-11-26 00:42:00,396 WARN L623 FunctionHandler]: Unknown extern function debug_dma_alloc_coherent [2022-11-26 00:42:00,396 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-11-26 00:42:00,397 WARN L623 FunctionHandler]: Unknown extern function debug_dma_free_coherent [2022-11-26 00:42:00,398 WARN L623 FunctionHandler]: Unknown extern function __netdev_alloc_skb [2022-11-26 00:42:00,400 WARN L623 FunctionHandler]: Unknown extern function netpoll_trap [2022-11-26 00:42:00,400 WARN L623 FunctionHandler]: Unknown extern function __netif_schedule [2022-11-26 00:42:00,401 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-11-26 00:42:00,401 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:42:00,403 WARN L623 FunctionHandler]: Unknown extern function __pci_enable_wake [2022-11-26 00:42:00,405 WARN L623 FunctionHandler]: Unknown extern function dma_set_mask [2022-11-26 00:42:00,405 WARN L623 FunctionHandler]: Unknown extern function request_threaded_irq [2022-11-26 00:42:00,408 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-11-26 00:42:00,408 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-26 00:42:00,409 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-11-26 00:42:00,409 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-26 00:42:00,409 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-11-26 00:42:00,410 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-26 00:42:00,411 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:42:00,412 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:42:00,414 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:42:00,414 WARN L623 FunctionHandler]: Unknown extern function pci_enable_device [2022-11-26 00:42:00,415 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:42:00,415 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:42:00,416 WARN L623 FunctionHandler]: Unknown extern function pci_request_regions [2022-11-26 00:42:00,417 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:42:00,442 WARN L623 FunctionHandler]: Unknown extern function pci_iomap [2022-11-26 00:42:00,445 WARN L623 FunctionHandler]: Unknown extern function __raw_spin_lock_init [2022-11-26 00:42:00,446 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-11-26 00:42:00,447 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-11-26 00:42:00,447 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-11-26 00:42:00,447 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-11-26 00:42:00,447 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-11-26 00:42:00,448 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-11-26 00:42:00,448 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-11-26 00:42:00,448 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-11-26 00:42:00,449 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-11-26 00:42:00,449 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-11-26 00:42:00,449 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-26 00:42:00,450 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-11-26 00:42:00,451 WARN L623 FunctionHandler]: Unknown extern function pci_set_master [2022-11-26 00:42:00,451 WARN L623 FunctionHandler]: Unknown extern function pci_iounmap [2022-11-26 00:42:00,451 WARN L623 FunctionHandler]: Unknown extern function pci_release_regions [2022-11-26 00:42:00,452 WARN L623 FunctionHandler]: Unknown extern function pci_disable_device [2022-11-26 00:42:00,453 WARN L623 FunctionHandler]: Unknown extern function pci_iounmap [2022-11-26 00:42:00,453 WARN L623 FunctionHandler]: Unknown extern function pci_release_regions [2022-11-26 00:42:00,453 WARN L623 FunctionHandler]: Unknown extern function pci_disable_device [2022-11-26 00:42:00,454 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:42:00,455 WARN L623 FunctionHandler]: Unknown extern function netif_carrier_off [2022-11-26 00:42:00,455 WARN L623 FunctionHandler]: Unknown extern function init_timer_key [2022-11-26 00:42:00,456 WARN L623 FunctionHandler]: Unknown extern function add_timer [2022-11-26 00:42:00,457 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:42:00,458 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-11-26 00:42:00,458 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-26 00:42:00,459 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-11-26 00:42:00,459 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-26 00:42:00,465 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:42:00,475 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-26 00:42:00,477 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-26 00:42:00,482 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-11-26 00:42:00,482 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-11-26 00:42:00,483 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:42:00,483 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-11-26 00:42:00,484 WARN L623 FunctionHandler]: Unknown extern function consume_skb [2022-11-26 00:42:00,484 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-11-26 00:42:00,485 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-11-26 00:42:00,486 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-11-26 00:42:00,486 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-11-26 00:42:00,487 WARN L623 FunctionHandler]: Unknown extern function consume_skb [2022-11-26 00:42:00,488 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-11-26 00:42:00,492 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-26 00:42:00,497 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-11-26 00:42:00,497 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-11-26 00:42:00,497 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-11-26 00:42:00,498 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-11-26 00:42:00,498 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:42:00,499 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-11-26 00:42:00,504 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:42:00,507 WARN L623 FunctionHandler]: Unknown extern function skb_put [2022-11-26 00:42:00,508 WARN L623 FunctionHandler]: Unknown extern function skb_put [2022-11-26 00:42:00,509 WARN L623 FunctionHandler]: Unknown extern function skb_put [2022-11-26 00:42:00,509 WARN L623 FunctionHandler]: Unknown extern function eth_type_trans [2022-11-26 00:42:00,509 WARN L623 FunctionHandler]: Unknown extern function netif_rx [2022-11-26 00:42:00,511 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:42:00,512 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:42:00,512 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:42:00,513 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:42:00,514 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:42:00,518 WARN L623 FunctionHandler]: Unknown extern function strlcpy [2022-11-26 00:42:00,520 WARN L623 FunctionHandler]: Unknown extern function strlcpy [2022-11-26 00:42:00,523 WARN L623 FunctionHandler]: Unknown extern function strlcpy [2022-11-26 00:42:00,525 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-11-26 00:42:00,526 WARN L623 FunctionHandler]: Unknown extern function dev_trans_start [2022-11-26 00:42:00,526 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-11-26 00:42:00,526 WARN L623 FunctionHandler]: Unknown extern function dev_trans_start [2022-11-26 00:42:00,527 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-11-26 00:42:00,527 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:42:00,528 WARN L623 FunctionHandler]: Unknown extern function add_timer [2022-11-26 00:42:00,532 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:42:00,533 WARN L623 FunctionHandler]: Unknown extern function netif_carrier_off [2022-11-26 00:42:00,533 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-11-26 00:42:00,537 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:42:00,538 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-11-26 00:42:00,541 WARN L623 FunctionHandler]: Unknown extern function netif_carrier_on [2022-11-26 00:42:00,542 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-11-26 00:42:00,542 WARN L623 FunctionHandler]: Unknown extern function netif_carrier_off [2022-11-26 00:42:00,543 WARN L623 FunctionHandler]: Unknown extern function add_timer [2022-11-26 00:42:00,544 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-11-26 00:42:00,544 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-11-26 00:42:00,544 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-11-26 00:42:00,545 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:42:00,546 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:42:00,546 WARN L623 FunctionHandler]: Unknown extern function pci_save_state [2022-11-26 00:42:00,547 WARN L623 FunctionHandler]: Unknown extern function netif_device_detach [2022-11-26 00:42:00,547 WARN L623 FunctionHandler]: Unknown extern function pci_choose_state [2022-11-26 00:42:00,547 WARN L623 FunctionHandler]: Unknown extern function pci_set_power_state [2022-11-26 00:42:00,548 WARN L623 FunctionHandler]: Unknown extern function netif_device_attach [2022-11-26 00:42:00,548 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:42:00,549 WARN L623 FunctionHandler]: Unknown extern function pci_restore_state [2022-11-26 00:42:00,549 WARN L623 FunctionHandler]: Unknown extern function pci_set_power_state [2022-11-26 00:42:00,549 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-11-26 00:42:00,550 WARN L623 FunctionHandler]: Unknown extern function netif_device_attach [2022-11-26 00:42:00,550 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:42:00,554 WARN L623 FunctionHandler]: Unknown extern function consume_skb [2022-11-26 00:42:00,557 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:42:00,558 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:42:00,559 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-11-26 00:42:00,559 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-11-26 00:42:00,562 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-11-26 00:42:00,562 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-26 00:42:00,563 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:42:00,567 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-11-26 00:42:00,568 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-11-26 00:42:00,570 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-11-26 00:42:00,570 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-11-26 00:42:00,571 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-11-26 00:42:00,571 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-11-26 00:42:00,571 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-26 00:42:00,572 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-11-26 00:42:00,572 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-11-26 00:42:00,572 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-26 00:42:00,573 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-11-26 00:42:00,621 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:42:00,633 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-26 00:42:00,659 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-11-26 00:42:00,660 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-26 00:42:00,660 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-11-26 00:42:00,661 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-11-26 00:42:00,662 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-26 00:42:00,662 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-11-26 00:42:00,663 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-26 00:42:00,663 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-11-26 00:42:00,663 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-26 00:42:00,663 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-11-26 00:42:00,664 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-26 00:42:00,664 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-11-26 00:42:00,664 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-26 00:42:00,665 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-11-26 00:42:00,665 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-11-26 00:42:00,665 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-26 00:42:00,669 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:42:00,669 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:42:00,671 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:42:00,678 WARN L623 FunctionHandler]: Unknown extern function eth_change_mtu [2022-11-26 00:42:00,679 WARN L623 FunctionHandler]: Unknown extern function eth_mac_addr [2022-11-26 00:42:00,680 WARN L623 FunctionHandler]: Unknown extern function eth_validate_addr [2022-11-26 00:42:00,681 WARN L623 FunctionHandler]: Unknown extern function ldv_initialize [2022-11-26 00:42:00,684 WARN L623 FunctionHandler]: Unknown extern function ldv_switch_to_interrupt_context [2022-11-26 00:42:00,684 WARN L623 FunctionHandler]: Unknown extern function ldv_switch_to_process_context [2022-11-26 00:42:00,693 WARN L623 FunctionHandler]: Unknown extern function ldv_pre_probe [2022-11-26 00:42:00,694 WARN L623 FunctionHandler]: Unknown extern function ldv_pre_register_netdev [2022-11-26 00:42:00,700 WARN L623 FunctionHandler]: Unknown extern function ldv_switch_to_interrupt_context [2022-11-26 00:42:00,701 WARN L623 FunctionHandler]: Unknown extern function ldv_switch_to_process_context [2022-11-26 00:42:00,703 WARN L623 FunctionHandler]: Unknown extern function alloc_etherdev_mqs [2022-11-26 00:42:00,704 WARN L623 FunctionHandler]: Unknown extern function register_netdev [2022-11-26 00:42:00,704 WARN L623 FunctionHandler]: Unknown extern function free_netdev [2022-11-26 00:42:00,705 WARN L623 FunctionHandler]: Unknown extern function unregister_netdev [2022-11-26 00:42:00,705 WARN L623 FunctionHandler]: Unknown extern function free_netdev [2022-11-26 00:42:00,706 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-11-26 00:42:00,707 WARN L623 FunctionHandler]: Unknown extern function del_timer_sync [2022-11-26 00:42:00,707 WARN L623 FunctionHandler]: Unknown extern function free_irq [2022-11-26 00:42:00,707 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-11-26 00:42:00,708 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-11-26 00:42:00,708 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-11-26 00:42:00,708 WARN L623 FunctionHandler]: Unknown extern function __pci_register_driver [2022-11-26 00:42:00,709 WARN L623 FunctionHandler]: Unknown extern function pci_unregister_driver [2022-11-26 00:42:00,712 WARN L623 FunctionHandler]: Unknown extern function ldv_check_alloc_flags [2022-11-26 00:42:00,712 WARN L623 FunctionHandler]: Unknown extern function ldv_after_alloc [2022-11-26 00:42:00,713 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-26 00:42:00,738 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_7f5ca670-98b6-43f1-a121-2c1679f13ad8/sv-benchmarks/c/ldv-challenges/linux-3.14__complex_emg__linux-kernel-locking-spinlock__drivers-net-ethernet-dec-tulip-uli526x.cil.i[309274,309287] [2022-11-26 00:42:00,738 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_7f5ca670-98b6-43f1-a121-2c1679f13ad8/sv-benchmarks/c/ldv-challenges/linux-3.14__complex_emg__linux-kernel-locking-spinlock__drivers-net-ethernet-dec-tulip-uli526x.cil.i[309443,309456] [2022-11-26 00:42:00,740 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_7f5ca670-98b6-43f1-a121-2c1679f13ad8/sv-benchmarks/c/ldv-challenges/linux-3.14__complex_emg__linux-kernel-locking-spinlock__drivers-net-ethernet-dec-tulip-uli526x.cil.i[309610,309623] [2022-11-26 00:42:00,741 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_7f5ca670-98b6-43f1-a121-2c1679f13ad8/sv-benchmarks/c/ldv-challenges/linux-3.14__complex_emg__linux-kernel-locking-spinlock__drivers-net-ethernet-dec-tulip-uli526x.cil.i[309778,309791] [2022-11-26 00:42:00,748 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-26 00:42:00,952 INFO L208 MainTranslator]: Completed translation [2022-11-26 00:42:00,952 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:42:00 WrapperNode [2022-11-26 00:42:00,952 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-26 00:42:00,954 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-26 00:42:00,955 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-26 00:42:00,960 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-26 00:42:00,968 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:42:00" (1/1) ... [2022-11-26 00:42:01,087 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:42:00" (1/1) ... [2022-11-26 00:42:01,287 INFO L138 Inliner]: procedures = 412, calls = 1674, calls flagged for inlining = 194, calls inlined = 177, statements flattened = 4057 [2022-11-26 00:42:01,288 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-26 00:42:01,289 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-26 00:42:01,289 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-26 00:42:01,289 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-26 00:42:01,299 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:42:00" (1/1) ... [2022-11-26 00:42:01,300 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:42:00" (1/1) ... [2022-11-26 00:42:01,320 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:42:00" (1/1) ... [2022-11-26 00:42:01,320 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:42:00" (1/1) ... [2022-11-26 00:42:01,421 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:42:00" (1/1) ... [2022-11-26 00:42:01,436 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:42:00" (1/1) ... [2022-11-26 00:42:01,454 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:42:00" (1/1) ... [2022-11-26 00:42:01,469 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:42:00" (1/1) ... [2022-11-26 00:42:01,506 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-26 00:42:01,508 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-26 00:42:01,508 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-26 00:42:01,508 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-26 00:42:01,509 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:42:00" (1/1) ... [2022-11-26 00:42:01,515 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-26 00:42:01,526 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f5ca670-98b6-43f1-a121-2c1679f13ad8/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:42:01,544 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f5ca670-98b6-43f1-a121-2c1679f13ad8/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-26 00:42:01,565 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f5ca670-98b6-43f1-a121-2c1679f13ad8/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-26 00:42:01,597 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2022-11-26 00:42:01,597 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2022-11-26 00:42:01,597 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-11-26 00:42:01,598 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-11-26 00:42:01,598 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_alloc_skb [2022-11-26 00:42:01,598 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_alloc_skb [2022-11-26 00:42:01,598 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2022-11-26 00:42:01,598 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2022-11-26 00:42:01,598 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-26 00:42:01,598 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-26 00:42:01,599 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-11-26 00:42:01,599 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-11-26 00:42:01,599 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2022-11-26 00:42:01,599 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2022-11-26 00:42:01,599 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_69 [2022-11-26 00:42:01,599 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_69 [2022-11-26 00:42:01,600 INFO L130 BoogieDeclarations]: Found specification of procedure ioread32 [2022-11-26 00:42:01,600 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread32 [2022-11-26 00:42:01,600 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2022-11-26 00:42:01,600 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2022-11-26 00:42:01,600 INFO L130 BoogieDeclarations]: Found specification of procedure dev_trans_start [2022-11-26 00:42:01,600 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_trans_start [2022-11-26 00:42:01,600 INFO L130 BoogieDeclarations]: Found specification of procedure uli526x_poll [2022-11-26 00:42:01,600 INFO L138 BoogieDeclarations]: Found implementation of procedure uli526x_poll [2022-11-26 00:42:01,600 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2022-11-26 00:42:01,600 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2022-11-26 00:42:01,601 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-11-26 00:42:01,601 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-11-26 00:42:01,601 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2022-11-26 00:42:01,601 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2022-11-26 00:42:01,601 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite32 [2022-11-26 00:42:01,601 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite32 [2022-11-26 00:42:01,601 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2022-11-26 00:42:01,601 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2022-11-26 00:42:01,601 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-11-26 00:42:01,601 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-11-26 00:42:01,602 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_attach [2022-11-26 00:42:01,602 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_attach [2022-11-26 00:42:01,602 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-26 00:42:01,602 INFO L130 BoogieDeclarations]: Found specification of procedure uli526x_stop [2022-11-26 00:42:01,602 INFO L138 BoogieDeclarations]: Found implementation of procedure uli526x_stop [2022-11-26 00:42:01,602 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-11-26 00:42:01,602 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-11-26 00:42:01,602 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-11-26 00:42:01,602 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-11-26 00:42:01,602 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-11-26 00:42:01,603 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-26 00:42:01,603 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-11-26 00:42:01,603 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-11-26 00:42:01,603 INFO L130 BoogieDeclarations]: Found specification of procedure uli526x_set_filter_mode [2022-11-26 00:42:01,603 INFO L138 BoogieDeclarations]: Found implementation of procedure uli526x_set_filter_mode [2022-11-26 00:42:01,603 INFO L130 BoogieDeclarations]: Found specification of procedure phy_write_1bit [2022-11-26 00:42:01,603 INFO L138 BoogieDeclarations]: Found implementation of procedure phy_write_1bit [2022-11-26 00:42:01,603 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-26 00:42:01,603 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u8~0~X~~u8~0~X~~u16~0~TO~VOID [2022-11-26 00:42:01,604 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u8~0~X~~u8~0~X~~u16~0~TO~VOID [2022-11-26 00:42:01,604 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2022-11-26 00:42:01,604 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2022-11-26 00:42:01,604 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-26 00:42:01,604 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-26 00:42:01,604 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2022-11-26 00:42:01,604 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2022-11-26 00:42:01,604 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2022-11-26 00:42:01,604 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2022-11-26 00:42:01,604 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2022-11-26 00:42:01,605 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2022-11-26 00:42:01,605 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2022-11-26 00:42:01,605 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2022-11-26 00:42:01,605 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2022-11-26 00:42:01,605 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2022-11-26 00:42:01,605 INFO L130 BoogieDeclarations]: Found specification of procedure phy_read_1bit [2022-11-26 00:42:01,605 INFO L138 BoogieDeclarations]: Found implementation of procedure phy_read_1bit [2022-11-26 00:42:01,605 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2022-11-26 00:42:01,605 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2022-11-26 00:42:01,605 INFO L130 BoogieDeclarations]: Found specification of procedure uli526x_reset_prepare [2022-11-26 00:42:01,605 INFO L138 BoogieDeclarations]: Found implementation of procedure uli526x_reset_prepare [2022-11-26 00:42:01,606 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-26 00:42:01,606 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2022-11-26 00:42:01,606 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2022-11-26 00:42:01,606 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2022-11-26 00:42:01,606 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2022-11-26 00:42:01,606 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-26 00:42:01,606 INFO L130 BoogieDeclarations]: Found specification of procedure allocate_rx_buffer [2022-11-26 00:42:01,606 INFO L138 BoogieDeclarations]: Found implementation of procedure allocate_rx_buffer [2022-11-26 00:42:01,606 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-11-26 00:42:01,606 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-11-26 00:42:01,607 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-11-26 00:42:01,607 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-11-26 00:42:01,607 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-26 00:42:01,607 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-11-26 00:42:01,607 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-11-26 00:42:01,607 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2022-11-26 00:42:01,607 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2022-11-26 00:42:01,607 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-11-26 00:42:01,607 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-11-26 00:42:01,608 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2022-11-26 00:42:01,608 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2022-11-26 00:42:01,608 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2022-11-26 00:42:01,608 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2022-11-26 00:42:01,608 INFO L130 BoogieDeclarations]: Found specification of procedure skb_tail_pointer [2022-11-26 00:42:01,608 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_tail_pointer [2022-11-26 00:42:01,608 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-26 00:42:01,608 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-26 00:42:01,608 INFO L130 BoogieDeclarations]: Found specification of procedure uli526x_reuse_skb [2022-11-26 00:42:01,608 INFO L138 BoogieDeclarations]: Found implementation of procedure uli526x_reuse_skb [2022-11-26 00:42:01,609 INFO L130 BoogieDeclarations]: Found specification of procedure uli526x_open [2022-11-26 00:42:01,609 INFO L138 BoogieDeclarations]: Found implementation of procedure uli526x_open [2022-11-26 00:42:01,609 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-26 00:42:01,609 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-26 00:42:01,609 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-26 00:42:01,609 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-26 00:42:01,609 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-11-26 00:42:01,609 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-11-26 00:42:01,609 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2022-11-26 00:42:01,609 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2022-11-26 00:42:01,610 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_lock_of_uli526x_board_info [2022-11-26 00:42:01,610 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_lock_of_uli526x_board_info [2022-11-26 00:42:01,610 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2022-11-26 00:42:01,610 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2022-11-26 00:42:01,610 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2022-11-26 00:42:01,611 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2022-11-26 00:42:01,611 INFO L130 BoogieDeclarations]: Found specification of procedure ethtool_cmd_speed_set [2022-11-26 00:42:01,611 INFO L138 BoogieDeclarations]: Found implementation of procedure ethtool_cmd_speed_set [2022-11-26 00:42:01,611 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2022-11-26 00:42:01,611 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2022-11-26 00:42:01,611 INFO L130 BoogieDeclarations]: Found specification of procedure pci_alloc_consistent [2022-11-26 00:42:01,611 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_alloc_consistent [2022-11-26 00:42:01,612 INFO L130 BoogieDeclarations]: Found specification of procedure send_filter_frame [2022-11-26 00:42:01,612 INFO L138 BoogieDeclarations]: Found implementation of procedure send_filter_frame [2022-11-26 00:42:01,612 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_uli526x_cleanup_module_14_2 [2022-11-26 00:42:01,612 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_uli526x_cleanup_module_14_2 [2022-11-26 00:42:01,612 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2022-11-26 00:42:01,612 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2022-11-26 00:42:01,612 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-26 00:42:01,612 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2022-11-26 00:42:01,612 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2022-11-26 00:42:01,612 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-26 00:42:01,613 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2022-11-26 00:42:01,613 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2022-11-26 00:42:01,613 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-26 00:42:01,613 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-11-26 00:42:01,613 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-11-26 00:42:01,613 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-11-26 00:42:01,613 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-11-26 00:42:01,613 INFO L130 BoogieDeclarations]: Found specification of procedure uli526x_resume [2022-11-26 00:42:01,613 INFO L138 BoogieDeclarations]: Found implementation of procedure uli526x_resume [2022-11-26 00:42:01,614 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-11-26 00:42:01,614 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-11-26 00:42:01,614 INFO L130 BoogieDeclarations]: Found specification of procedure uli526x_interrupt [2022-11-26 00:42:01,614 INFO L138 BoogieDeclarations]: Found implementation of procedure uli526x_interrupt [2022-11-26 00:42:01,614 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u8~0~X~~u8~0~TO~~u16~0 [2022-11-26 00:42:01,614 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u8~0~X~~u8~0~TO~~u16~0 [2022-11-26 00:42:01,614 INFO L130 BoogieDeclarations]: Found specification of procedure uli526x_remove_one [2022-11-26 00:42:01,614 INFO L138 BoogieDeclarations]: Found implementation of procedure uli526x_remove_one [2022-11-26 00:42:01,614 INFO L130 BoogieDeclarations]: Found specification of procedure update_cr6 [2022-11-26 00:42:01,614 INFO L138 BoogieDeclarations]: Found implementation of procedure update_cr6 [2022-11-26 00:42:01,615 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-26 00:42:01,615 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-26 00:42:01,615 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-26 00:42:01,615 INFO L130 BoogieDeclarations]: Found specification of procedure srom_clk_write [2022-11-26 00:42:01,615 INFO L138 BoogieDeclarations]: Found implementation of procedure srom_clk_write [2022-11-26 00:42:01,615 INFO L130 BoogieDeclarations]: Found specification of procedure uli526x_free_rxbuffer [2022-11-26 00:42:01,615 INFO L138 BoogieDeclarations]: Found implementation of procedure uli526x_free_rxbuffer [2022-11-26 00:42:01,615 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-11-26 00:42:01,615 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-11-26 00:42:01,615 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iounmap [2022-11-26 00:42:01,616 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iounmap [2022-11-26 00:42:01,616 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_power_state [2022-11-26 00:42:01,616 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_power_state [2022-11-26 00:42:01,616 INFO L130 BoogieDeclarations]: Found specification of procedure uli526x_init [2022-11-26 00:42:01,616 INFO L138 BoogieDeclarations]: Found implementation of procedure uli526x_init [2022-11-26 00:42:01,616 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-26 00:42:01,616 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2022-11-26 00:42:01,616 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2022-11-26 00:42:02,560 INFO L235 CfgBuilder]: Building ICFG [2022-11-26 00:42:02,565 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-26 00:42:03,085 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-26 00:42:05,642 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2022-11-26 00:42:05,886 INFO L276 CfgBuilder]: Performing block encoding [2022-11-26 00:42:07,131 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-26 00:42:07,131 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-26 00:42:07,136 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:42:07 BoogieIcfgContainer [2022-11-26 00:42:07,136 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-26 00:42:07,138 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-26 00:42:07,138 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-26 00:42:07,141 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-26 00:42:07,142 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 12:41:57" (1/3) ... [2022-11-26 00:42:07,142 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4df8831b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:42:07, skipping insertion in model container [2022-11-26 00:42:07,143 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:42:00" (2/3) ... [2022-11-26 00:42:07,143 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4df8831b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:42:07, skipping insertion in model container [2022-11-26 00:42:07,143 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:42:07" (3/3) ... [2022-11-26 00:42:07,144 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14__complex_emg__linux-kernel-locking-spinlock__drivers-net-ethernet-dec-tulip-uli526x.cil.i [2022-11-26 00:42:07,164 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-26 00:42:07,164 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2022-11-26 00:42:07,235 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-26 00:42:07,242 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;@300f6218, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-26 00:42:07,242 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-11-26 00:42:07,250 INFO L276 IsEmpty]: Start isEmpty. Operand has 1067 states, 596 states have (on average 1.2953020134228188) internal successors, (772), 619 states have internal predecessors, (772), 390 states have call successors, (390), 79 states have call predecessors, (390), 78 states have return successors, (384), 378 states have call predecessors, (384), 384 states have call successors, (384) [2022-11-26 00:42:07,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-11-26 00:42:07,266 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:42:07,267 INFO L195 NwaCegarLoop]: trace histogram [10, 9, 9, 9, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:42:07,267 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-26 00:42:07,272 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:42:07,272 INFO L85 PathProgramCache]: Analyzing trace with hash -360122654, now seen corresponding path program 1 times [2022-11-26 00:42:07,282 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:42:07,282 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1673592927] [2022-11-26 00:42:07,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:42:07,283 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:42:07,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:42:07,985 INFO L134 CoverageAnalysis]: Checked inductivity of 306 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 306 trivial. 0 not checked. [2022-11-26 00:42:07,986 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:42:07,987 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1673592927] [2022-11-26 00:42:07,988 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1673592927] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:42:07,988 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:42:07,988 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-26 00:42:07,990 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1132395580] [2022-11-26 00:42:07,991 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:42:07,996 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-26 00:42:07,997 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:42:08,050 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-26 00:42:08,051 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:42:08,057 INFO L87 Difference]: Start difference. First operand has 1067 states, 596 states have (on average 1.2953020134228188) internal successors, (772), 619 states have internal predecessors, (772), 390 states have call successors, (390), 79 states have call predecessors, (390), 78 states have return successors, (384), 378 states have call predecessors, (384), 384 states have call successors, (384) Second operand has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 3 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2022-11-26 00:42:10,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:42:10,664 INFO L93 Difference]: Finished difference Result 3082 states and 4527 transitions. [2022-11-26 00:42:10,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-26 00:42:10,667 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 3 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 111 [2022-11-26 00:42:10,667 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:42:10,703 INFO L225 Difference]: With dead ends: 3082 [2022-11-26 00:42:10,703 INFO L226 Difference]: Without dead ends: 2024 [2022-11-26 00:42:10,723 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 [2022-11-26 00:42:10,726 INFO L413 NwaCegarLoop]: 1663 mSDtfsCounter, 1427 mSDsluCounter, 1273 mSDsCounter, 0 mSdLazyCounter, 464 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1427 SdHoareTripleChecker+Valid, 2936 SdHoareTripleChecker+Invalid, 471 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 464 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-11-26 00:42:10,727 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1427 Valid, 2936 Invalid, 471 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 464 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2022-11-26 00:42:10,751 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2024 states. [2022-11-26 00:42:10,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2024 to 2020. [2022-11-26 00:42:10,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2020 states, 1139 states have (on average 1.2853380158033363) internal successors, (1464), 1184 states have internal predecessors, (1464), 726 states have call successors, (726), 153 states have call predecessors, (726), 152 states have return successors, (722), 710 states have call predecessors, (722), 722 states have call successors, (722) [2022-11-26 00:42:10,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2020 states to 2020 states and 2912 transitions. [2022-11-26 00:42:10,947 INFO L78 Accepts]: Start accepts. Automaton has 2020 states and 2912 transitions. Word has length 111 [2022-11-26 00:42:10,948 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:42:10,948 INFO L495 AbstractCegarLoop]: Abstraction has 2020 states and 2912 transitions. [2022-11-26 00:42:10,948 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 3 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2022-11-26 00:42:10,949 INFO L276 IsEmpty]: Start isEmpty. Operand 2020 states and 2912 transitions. [2022-11-26 00:42:10,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2022-11-26 00:42:10,953 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:42:10,953 INFO L195 NwaCegarLoop]: trace histogram [10, 9, 9, 9, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:42:10,954 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-26 00:42:10,954 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-26 00:42:10,955 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:42:10,955 INFO L85 PathProgramCache]: Analyzing trace with hash 1145499243, now seen corresponding path program 1 times [2022-11-26 00:42:10,955 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:42:10,955 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1359203161] [2022-11-26 00:42:10,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:42:10,956 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:42:11,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:42:11,271 INFO L134 CoverageAnalysis]: Checked inductivity of 306 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 306 trivial. 0 not checked. [2022-11-26 00:42:11,271 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:42:11,271 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1359203161] [2022-11-26 00:42:11,271 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1359203161] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:42:11,272 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:42:11,272 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-26 00:42:11,272 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1219717104] [2022-11-26 00:42:11,272 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:42:11,273 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-26 00:42:11,274 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:42:11,274 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-26 00:42:11,275 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:42:11,275 INFO L87 Difference]: Start difference. First operand 2020 states and 2912 transitions. Second operand has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 3 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2022-11-26 00:42:13,759 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:42:13,760 INFO L93 Difference]: Finished difference Result 5958 states and 8596 transitions. [2022-11-26 00:42:13,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-26 00:42:13,760 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 3 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) Word has length 115 [2022-11-26 00:42:13,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:42:13,791 INFO L225 Difference]: With dead ends: 5958 [2022-11-26 00:42:13,792 INFO L226 Difference]: Without dead ends: 3957 [2022-11-26 00:42:13,805 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 [2022-11-26 00:42:13,806 INFO L413 NwaCegarLoop]: 1667 mSDtfsCounter, 1470 mSDsluCounter, 1265 mSDsCounter, 0 mSdLazyCounter, 453 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1470 SdHoareTripleChecker+Valid, 2932 SdHoareTripleChecker+Invalid, 459 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 453 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-11-26 00:42:13,806 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1470 Valid, 2932 Invalid, 459 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 453 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2022-11-26 00:42:13,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3957 states. [2022-11-26 00:42:14,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3957 to 3927. [2022-11-26 00:42:14,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3927 states, 2228 states have (on average 1.2885996409335727) internal successors, (2871), 2322 states have internal predecessors, (2871), 1397 states have call successors, (1397), 304 states have call predecessors, (1397), 299 states have return successors, (1399), 1356 states have call predecessors, (1399), 1393 states have call successors, (1399) [2022-11-26 00:42:14,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3927 states to 3927 states and 5667 transitions. [2022-11-26 00:42:14,130 INFO L78 Accepts]: Start accepts. Automaton has 3927 states and 5667 transitions. Word has length 115 [2022-11-26 00:42:14,131 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:42:14,131 INFO L495 AbstractCegarLoop]: Abstraction has 3927 states and 5667 transitions. [2022-11-26 00:42:14,131 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 3 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2022-11-26 00:42:14,132 INFO L276 IsEmpty]: Start isEmpty. Operand 3927 states and 5667 transitions. [2022-11-26 00:42:14,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2022-11-26 00:42:14,141 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:42:14,141 INFO L195 NwaCegarLoop]: trace histogram [10, 9, 9, 9, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:42:14,141 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-26 00:42:14,142 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-26 00:42:14,142 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:42:14,142 INFO L85 PathProgramCache]: Analyzing trace with hash -2114943247, now seen corresponding path program 1 times [2022-11-26 00:42:14,143 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:42:14,143 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1956029471] [2022-11-26 00:42:14,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:42:14,143 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:42:14,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:42:14,486 INFO L134 CoverageAnalysis]: Checked inductivity of 306 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 306 trivial. 0 not checked. [2022-11-26 00:42:14,486 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:42:14,487 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1956029471] [2022-11-26 00:42:14,487 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1956029471] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:42:14,487 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:42:14,487 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-26 00:42:14,487 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1472145171] [2022-11-26 00:42:14,488 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:42:14,488 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-26 00:42:14,488 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:42:14,489 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-26 00:42:14,489 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:42:14,489 INFO L87 Difference]: Start difference. First operand 3927 states and 5667 transitions. Second operand has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 3 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2022-11-26 00:42:16,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:42:16,944 INFO L93 Difference]: Finished difference Result 11395 states and 16413 transitions. [2022-11-26 00:42:16,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-26 00:42:16,945 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 3 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) Word has length 115 [2022-11-26 00:42:16,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:42:17,001 INFO L225 Difference]: With dead ends: 11395 [2022-11-26 00:42:17,001 INFO L226 Difference]: Without dead ends: 7487 [2022-11-26 00:42:17,029 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 [2022-11-26 00:42:17,032 INFO L413 NwaCegarLoop]: 1643 mSDtfsCounter, 1380 mSDsluCounter, 1258 mSDsCounter, 0 mSdLazyCounter, 445 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1380 SdHoareTripleChecker+Valid, 2901 SdHoareTripleChecker+Invalid, 448 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 445 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-11-26 00:42:17,037 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1380 Valid, 2901 Invalid, 448 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 445 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-11-26 00:42:17,048 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7487 states. [2022-11-26 00:42:17,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7487 to 7453. [2022-11-26 00:42:17,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7453 states, 4238 states have (on average 1.2890514393581878) internal successors, (5463), 4424 states have internal predecessors, (5463), 2627 states have call successors, (2627), 598 states have call predecessors, (2627), 585 states have return successors, (2637), 2538 states have call predecessors, (2637), 2623 states have call successors, (2637) [2022-11-26 00:42:17,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7453 states to 7453 states and 10727 transitions. [2022-11-26 00:42:17,718 INFO L78 Accepts]: Start accepts. Automaton has 7453 states and 10727 transitions. Word has length 115 [2022-11-26 00:42:17,721 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:42:17,721 INFO L495 AbstractCegarLoop]: Abstraction has 7453 states and 10727 transitions. [2022-11-26 00:42:17,722 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 3 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2022-11-26 00:42:17,723 INFO L276 IsEmpty]: Start isEmpty. Operand 7453 states and 10727 transitions. [2022-11-26 00:42:17,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2022-11-26 00:42:17,727 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:42:17,727 INFO L195 NwaCegarLoop]: trace histogram [10, 9, 9, 9, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:42:17,727 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-26 00:42:17,728 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-26 00:42:17,730 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:42:17,730 INFO L85 PathProgramCache]: Analyzing trace with hash -862752255, now seen corresponding path program 1 times [2022-11-26 00:42:17,731 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:42:17,731 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [516140004] [2022-11-26 00:42:17,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:42:17,731 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:42:17,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:42:18,438 INFO L134 CoverageAnalysis]: Checked inductivity of 306 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 306 trivial. 0 not checked. [2022-11-26 00:42:18,439 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:42:18,439 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [516140004] [2022-11-26 00:42:18,439 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [516140004] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:42:18,439 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:42:18,439 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-26 00:42:18,440 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [137682890] [2022-11-26 00:42:18,440 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:42:18,441 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-26 00:42:18,442 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:42:18,442 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-26 00:42:18,443 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-11-26 00:42:18,443 INFO L87 Difference]: Start difference. First operand 7453 states and 10727 transitions. Second operand has 6 states, 5 states have (on average 6.6) internal successors, (33), 5 states have internal predecessors, (33), 3 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2022-11-26 00:42:24,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:42:24,551 INFO L93 Difference]: Finished difference Result 16965 states and 24267 transitions. [2022-11-26 00:42:24,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-26 00:42:24,552 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 6.6) internal successors, (33), 5 states have internal predecessors, (33), 3 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 118 [2022-11-26 00:42:24,552 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:42:24,611 INFO L225 Difference]: With dead ends: 16965 [2022-11-26 00:42:24,611 INFO L226 Difference]: Without dead ends: 9531 [2022-11-26 00:42:24,645 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-11-26 00:42:24,650 INFO L413 NwaCegarLoop]: 1888 mSDtfsCounter, 2652 mSDsluCounter, 2843 mSDsCounter, 0 mSdLazyCounter, 2219 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2729 SdHoareTripleChecker+Valid, 4731 SdHoareTripleChecker+Invalid, 2257 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 2219 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2022-11-26 00:42:24,653 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2729 Valid, 4731 Invalid, 2257 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [38 Valid, 2219 Invalid, 0 Unknown, 0 Unchecked, 5.5s Time] [2022-11-26 00:42:24,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9531 states. [2022-11-26 00:42:25,243 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9531 to 9459. [2022-11-26 00:42:25,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9459 states, 5567 states have (on average 1.2927968385126638) internal successors, (7197), 5795 states have internal predecessors, (7197), 3090 states have call successors, (3090), 820 states have call predecessors, (3090), 799 states have return successors, (3093), 2963 states have call predecessors, (3093), 3086 states have call successors, (3093) [2022-11-26 00:42:25,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9459 states to 9459 states and 13380 transitions. [2022-11-26 00:42:25,335 INFO L78 Accepts]: Start accepts. Automaton has 9459 states and 13380 transitions. Word has length 118 [2022-11-26 00:42:25,335 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:42:25,336 INFO L495 AbstractCegarLoop]: Abstraction has 9459 states and 13380 transitions. [2022-11-26 00:42:25,336 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 6.6) internal successors, (33), 5 states have internal predecessors, (33), 3 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2022-11-26 00:42:25,336 INFO L276 IsEmpty]: Start isEmpty. Operand 9459 states and 13380 transitions. [2022-11-26 00:42:25,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2022-11-26 00:42:25,339 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:42:25,339 INFO L195 NwaCegarLoop]: trace histogram [10, 9, 9, 9, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:42:25,339 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-26 00:42:25,340 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-26 00:42:25,340 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:42:25,340 INFO L85 PathProgramCache]: Analyzing trace with hash 1656430772, now seen corresponding path program 1 times [2022-11-26 00:42:25,341 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:42:25,341 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1028429015] [2022-11-26 00:42:25,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:42:25,341 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:42:25,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:42:25,659 INFO L134 CoverageAnalysis]: Checked inductivity of 306 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 306 trivial. 0 not checked. [2022-11-26 00:42:25,659 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:42:25,659 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1028429015] [2022-11-26 00:42:25,660 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1028429015] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:42:25,660 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:42:25,660 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-26 00:42:25,660 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [183635705] [2022-11-26 00:42:25,661 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:42:25,661 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-26 00:42:25,661 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:42:25,662 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-26 00:42:25,662 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:42:25,663 INFO L87 Difference]: Start difference. First operand 9459 states and 13380 transitions. Second operand has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 3 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2022-11-26 00:42:28,527 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:42:28,527 INFO L93 Difference]: Finished difference Result 24861 states and 35112 transitions. [2022-11-26 00:42:28,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-26 00:42:28,528 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 3 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 121 [2022-11-26 00:42:28,528 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:42:28,612 INFO L225 Difference]: With dead ends: 24861 [2022-11-26 00:42:28,612 INFO L226 Difference]: Without dead ends: 15421 [2022-11-26 00:42:28,654 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 [2022-11-26 00:42:28,655 INFO L413 NwaCegarLoop]: 1640 mSDtfsCounter, 1337 mSDsluCounter, 1254 mSDsCounter, 0 mSdLazyCounter, 474 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1337 SdHoareTripleChecker+Valid, 2894 SdHoareTripleChecker+Invalid, 481 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 474 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-11-26 00:42:28,656 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1337 Valid, 2894 Invalid, 481 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 474 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-11-26 00:42:28,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15421 states. [2022-11-26 00:42:29,576 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15421 to 15389. [2022-11-26 00:42:29,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15389 states, 8959 states have (on average 1.2782676638017636) internal successors, (11452), 9331 states have internal predecessors, (11452), 5093 states have call successors, (5093), 1377 states have call predecessors, (5093), 1334 states have return successors, (5104), 4859 states have call predecessors, (5104), 5089 states have call successors, (5104) [2022-11-26 00:42:29,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15389 states to 15389 states and 21649 transitions. [2022-11-26 00:42:29,679 INFO L78 Accepts]: Start accepts. Automaton has 15389 states and 21649 transitions. Word has length 121 [2022-11-26 00:42:29,681 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:42:29,681 INFO L495 AbstractCegarLoop]: Abstraction has 15389 states and 21649 transitions. [2022-11-26 00:42:29,681 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 3 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2022-11-26 00:42:29,681 INFO L276 IsEmpty]: Start isEmpty. Operand 15389 states and 21649 transitions. [2022-11-26 00:42:29,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2022-11-26 00:42:29,684 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:42:29,685 INFO L195 NwaCegarLoop]: trace histogram [11, 9, 9, 9, 9, 9, 9, 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] [2022-11-26 00:42:29,685 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-26 00:42:29,685 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-26 00:42:29,686 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:42:29,686 INFO L85 PathProgramCache]: Analyzing trace with hash -649617697, now seen corresponding path program 1 times [2022-11-26 00:42:29,686 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:42:29,686 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1464519979] [2022-11-26 00:42:29,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:42:29,687 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:42:29,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:42:29,908 INFO L134 CoverageAnalysis]: Checked inductivity of 333 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 326 trivial. 0 not checked. [2022-11-26 00:42:29,909 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:42:29,909 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1464519979] [2022-11-26 00:42:29,909 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1464519979] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:42:29,909 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:42:29,910 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-26 00:42:29,910 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [199582225] [2022-11-26 00:42:29,910 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:42:29,911 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-26 00:42:29,911 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:42:29,912 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-26 00:42:29,912 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:42:29,912 INFO L87 Difference]: Start difference. First operand 15389 states and 21649 transitions. Second operand has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 3 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2022-11-26 00:42:33,143 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:42:33,143 INFO L93 Difference]: Finished difference Result 45249 states and 63699 transitions. [2022-11-26 00:42:33,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-26 00:42:33,144 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 3 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) Word has length 133 [2022-11-26 00:42:33,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:42:33,323 INFO L225 Difference]: With dead ends: 45249 [2022-11-26 00:42:33,323 INFO L226 Difference]: Without dead ends: 29879 [2022-11-26 00:42:33,396 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 [2022-11-26 00:42:33,396 INFO L413 NwaCegarLoop]: 1751 mSDtfsCounter, 1477 mSDsluCounter, 1295 mSDsCounter, 0 mSdLazyCounter, 468 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1477 SdHoareTripleChecker+Valid, 3046 SdHoareTripleChecker+Invalid, 472 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 468 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-11-26 00:42:33,397 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1477 Valid, 3046 Invalid, 472 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 468 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-11-26 00:42:33,438 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29879 states. [2022-11-26 00:42:35,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29879 to 29805. [2022-11-26 00:42:35,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29805 states, 17331 states have (on average 1.2785759621487507) internal successors, (22159), 18097 states have internal predecessors, (22159), 9880 states have call successors, (9880), 2676 states have call predecessors, (9880), 2591 states have return successors, (9906), 9381 states have call predecessors, (9906), 9876 states have call successors, (9906) [2022-11-26 00:42:35,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29805 states to 29805 states and 41945 transitions. [2022-11-26 00:42:35,500 INFO L78 Accepts]: Start accepts. Automaton has 29805 states and 41945 transitions. Word has length 133 [2022-11-26 00:42:35,500 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:42:35,500 INFO L495 AbstractCegarLoop]: Abstraction has 29805 states and 41945 transitions. [2022-11-26 00:42:35,501 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 3 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2022-11-26 00:42:35,501 INFO L276 IsEmpty]: Start isEmpty. Operand 29805 states and 41945 transitions. [2022-11-26 00:42:35,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2022-11-26 00:42:35,503 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:42:35,504 INFO L195 NwaCegarLoop]: trace histogram [13, 9, 9, 9, 9, 9, 9, 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] [2022-11-26 00:42:35,504 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-26 00:42:35,504 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-26 00:42:35,700 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:42:35,700 INFO L85 PathProgramCache]: Analyzing trace with hash -8498613, now seen corresponding path program 1 times [2022-11-26 00:42:35,700 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:42:35,700 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1408212282] [2022-11-26 00:42:35,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:42:35,701 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:42:35,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:42:35,948 INFO L134 CoverageAnalysis]: Checked inductivity of 399 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 390 trivial. 0 not checked. [2022-11-26 00:42:35,949 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:42:35,949 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1408212282] [2022-11-26 00:42:35,949 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1408212282] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:42:35,949 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:42:35,949 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-26 00:42:35,950 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [915567636] [2022-11-26 00:42:35,950 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:42:35,950 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-26 00:42:35,950 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:42:35,951 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-26 00:42:35,951 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:42:35,951 INFO L87 Difference]: Start difference. First operand 29805 states and 41945 transitions. Second operand has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 3 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2022-11-26 00:42:38,992 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:42:38,992 INFO L93 Difference]: Finished difference Result 59497 states and 83762 transitions. [2022-11-26 00:42:38,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-26 00:42:38,993 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 3 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) Word has length 156 [2022-11-26 00:42:38,993 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:42:39,146 INFO L225 Difference]: With dead ends: 59497 [2022-11-26 00:42:39,147 INFO L226 Difference]: Without dead ends: 29757 [2022-11-26 00:42:39,266 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 [2022-11-26 00:42:39,267 INFO L413 NwaCegarLoop]: 1289 mSDtfsCounter, 1485 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 227 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1485 SdHoareTripleChecker+Valid, 1289 SdHoareTripleChecker+Invalid, 230 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 227 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-11-26 00:42:39,268 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1485 Valid, 1289 Invalid, 230 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 227 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-11-26 00:42:39,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29757 states. [2022-11-26 00:42:40,961 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29757 to 29757. [2022-11-26 00:42:40,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29757 states, 17283 states have (on average 1.2682404675114274) internal successors, (21919), 18049 states have internal predecessors, (21919), 9880 states have call successors, (9880), 2676 states have call predecessors, (9880), 2591 states have return successors, (9906), 9381 states have call predecessors, (9906), 9876 states have call successors, (9906) [2022-11-26 00:42:41,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29757 states to 29757 states and 41705 transitions. [2022-11-26 00:42:41,182 INFO L78 Accepts]: Start accepts. Automaton has 29757 states and 41705 transitions. Word has length 156 [2022-11-26 00:42:41,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:42:41,183 INFO L495 AbstractCegarLoop]: Abstraction has 29757 states and 41705 transitions. [2022-11-26 00:42:41,183 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 3 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2022-11-26 00:42:41,183 INFO L276 IsEmpty]: Start isEmpty. Operand 29757 states and 41705 transitions. [2022-11-26 00:42:41,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2022-11-26 00:42:41,186 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:42:41,187 INFO L195 NwaCegarLoop]: trace histogram [13, 9, 9, 9, 9, 9, 9, 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] [2022-11-26 00:42:41,187 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-26 00:42:41,187 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-26 00:42:41,187 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:42:41,188 INFO L85 PathProgramCache]: Analyzing trace with hash -1474495195, now seen corresponding path program 1 times [2022-11-26 00:42:41,188 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:42:41,188 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [110529079] [2022-11-26 00:42:41,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:42:41,189 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:42:41,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:42:41,775 INFO L134 CoverageAnalysis]: Checked inductivity of 399 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 399 trivial. 0 not checked. [2022-11-26 00:42:41,775 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:42:41,776 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [110529079] [2022-11-26 00:42:41,776 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [110529079] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:42:41,776 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:42:41,776 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-26 00:42:41,777 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [591405341] [2022-11-26 00:42:41,777 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:42:41,777 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-26 00:42:41,778 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:42:41,778 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-26 00:42:41,778 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-26 00:42:41,779 INFO L87 Difference]: Start difference. First operand 29757 states and 41705 transitions. Second operand has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (20), 3 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-11-26 00:42:45,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:42:45,961 INFO L93 Difference]: Finished difference Result 29763 states and 41710 transitions. [2022-11-26 00:42:45,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-26 00:42:45,962 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (20), 3 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 158 [2022-11-26 00:42:45,962 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:42:46,114 INFO L225 Difference]: With dead ends: 29763 [2022-11-26 00:42:46,114 INFO L226 Difference]: Without dead ends: 29761 [2022-11-26 00:42:46,134 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-26 00:42:46,134 INFO L413 NwaCegarLoop]: 1289 mSDtfsCounter, 1463 mSDsluCounter, 2564 mSDsCounter, 0 mSdLazyCounter, 692 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1475 SdHoareTripleChecker+Valid, 3853 SdHoareTripleChecker+Invalid, 693 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 692 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2022-11-26 00:42:46,135 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1475 Valid, 3853 Invalid, 693 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 692 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2022-11-26 00:42:46,164 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29761 states. [2022-11-26 00:42:48,110 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29761 to 29761. [2022-11-26 00:42:48,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29761 states, 17286 states have (on average 1.2681939141501792) internal successors, (21922), 18052 states have internal predecessors, (21922), 9880 states have call successors, (9880), 2677 states have call predecessors, (9880), 2592 states have return successors, (9906), 9381 states have call predecessors, (9906), 9876 states have call successors, (9906) [2022-11-26 00:42:48,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29761 states to 29761 states and 41708 transitions. [2022-11-26 00:42:48,240 INFO L78 Accepts]: Start accepts. Automaton has 29761 states and 41708 transitions. Word has length 158 [2022-11-26 00:42:48,241 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:42:48,241 INFO L495 AbstractCegarLoop]: Abstraction has 29761 states and 41708 transitions. [2022-11-26 00:42:48,241 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (20), 3 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-11-26 00:42:48,242 INFO L276 IsEmpty]: Start isEmpty. Operand 29761 states and 41708 transitions. [2022-11-26 00:42:48,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2022-11-26 00:42:48,245 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:42:48,245 INFO L195 NwaCegarLoop]: trace histogram [13, 9, 9, 9, 9, 9, 9, 5, 5, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:42:48,245 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-26 00:42:48,245 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-26 00:42:48,246 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:42:48,246 INFO L85 PathProgramCache]: Analyzing trace with hash 270290293, now seen corresponding path program 1 times [2022-11-26 00:42:48,246 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:42:48,246 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [964638795] [2022-11-26 00:42:48,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:42:48,247 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:42:48,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:42:48,680 INFO L134 CoverageAnalysis]: Checked inductivity of 408 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 406 trivial. 0 not checked. [2022-11-26 00:42:48,680 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:42:48,680 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [964638795] [2022-11-26 00:42:48,680 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [964638795] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:42:48,681 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:42:48,681 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-26 00:42:48,681 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [738481804] [2022-11-26 00:42:48,681 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:42:48,683 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-26 00:42:48,683 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:42:48,684 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-26 00:42:48,684 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-26 00:42:48,685 INFO L87 Difference]: Start difference. First operand 29761 states and 41708 transitions. Second operand has 5 states, 5 states have (on average 10.0) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (23), 3 states have call predecessors, (23), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-11-26 00:42:52,383 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:42:52,383 INFO L93 Difference]: Finished difference Result 29767 states and 41713 transitions. [2022-11-26 00:42:52,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-26 00:42:52,384 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (23), 3 states have call predecessors, (23), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 166 [2022-11-26 00:42:52,384 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:42:52,523 INFO L225 Difference]: With dead ends: 29767 [2022-11-26 00:42:52,523 INFO L226 Difference]: Without dead ends: 29765 [2022-11-26 00:42:52,543 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-26 00:42:52,543 INFO L413 NwaCegarLoop]: 1292 mSDtfsCounter, 1457 mSDsluCounter, 2564 mSDsCounter, 0 mSdLazyCounter, 692 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1468 SdHoareTripleChecker+Valid, 3856 SdHoareTripleChecker+Invalid, 693 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 692 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-11-26 00:42:52,544 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1468 Valid, 3856 Invalid, 693 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 692 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2022-11-26 00:42:52,572 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29765 states. [2022-11-26 00:42:54,546 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29765 to 29765. [2022-11-26 00:42:54,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29765 states, 17289 states have (on average 1.2681473769448783) internal successors, (21925), 18055 states have internal predecessors, (21925), 9880 states have call successors, (9880), 2678 states have call predecessors, (9880), 2593 states have return successors, (9906), 9381 states have call predecessors, (9906), 9876 states have call successors, (9906) [2022-11-26 00:42:54,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29765 states to 29765 states and 41711 transitions. [2022-11-26 00:42:54,887 INFO L78 Accepts]: Start accepts. Automaton has 29765 states and 41711 transitions. Word has length 166 [2022-11-26 00:42:54,887 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:42:54,888 INFO L495 AbstractCegarLoop]: Abstraction has 29765 states and 41711 transitions. [2022-11-26 00:42:54,888 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (23), 3 states have call predecessors, (23), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-11-26 00:42:54,888 INFO L276 IsEmpty]: Start isEmpty. Operand 29765 states and 41711 transitions. [2022-11-26 00:42:54,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2022-11-26 00:42:54,892 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:42:54,892 INFO L195 NwaCegarLoop]: trace histogram [13, 9, 9, 9, 9, 9, 9, 5, 5, 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, 1, 1, 1, 1, 1] [2022-11-26 00:42:54,893 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-26 00:42:54,893 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-26 00:42:54,893 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:42:54,894 INFO L85 PathProgramCache]: Analyzing trace with hash -1310418234, now seen corresponding path program 1 times [2022-11-26 00:42:54,894 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:42:54,894 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1915340866] [2022-11-26 00:42:54,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:42:54,894 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:42:54,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:42:55,314 INFO L134 CoverageAnalysis]: Checked inductivity of 415 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 411 trivial. 0 not checked. [2022-11-26 00:42:55,315 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:42:55,315 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1915340866] [2022-11-26 00:42:55,315 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1915340866] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:42:55,315 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:42:55,315 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-26 00:42:55,316 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1981204516] [2022-11-26 00:42:55,316 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:42:55,316 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-26 00:42:55,316 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:42:55,317 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-26 00:42:55,317 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-26 00:42:55,317 INFO L87 Difference]: Start difference. First operand 29765 states and 41711 transitions. Second operand has 5 states, 5 states have (on average 10.0) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (24), 3 states have call predecessors, (24), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2022-11-26 00:42:59,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:42:59,675 INFO L93 Difference]: Finished difference Result 29771 states and 41716 transitions. [2022-11-26 00:42:59,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-26 00:42:59,676 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (24), 3 states have call predecessors, (24), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 172 [2022-11-26 00:42:59,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:42:59,835 INFO L225 Difference]: With dead ends: 29771 [2022-11-26 00:42:59,835 INFO L226 Difference]: Without dead ends: 29769 [2022-11-26 00:42:59,853 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-26 00:42:59,854 INFO L413 NwaCegarLoop]: 1292 mSDtfsCounter, 1457 mSDsluCounter, 2564 mSDsCounter, 0 mSdLazyCounter, 692 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1467 SdHoareTripleChecker+Valid, 3856 SdHoareTripleChecker+Invalid, 693 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 692 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2022-11-26 00:42:59,854 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1467 Valid, 3856 Invalid, 693 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 692 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2022-11-26 00:42:59,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29769 states. [2022-11-26 00:43:01,928 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29769 to 29769. [2022-11-26 00:43:01,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29769 states, 17292 states have (on average 1.2681008558871154) internal successors, (21928), 18058 states have internal predecessors, (21928), 9880 states have call successors, (9880), 2679 states have call predecessors, (9880), 2594 states have return successors, (9906), 9381 states have call predecessors, (9906), 9876 states have call successors, (9906) [2022-11-26 00:43:02,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29769 states to 29769 states and 41714 transitions. [2022-11-26 00:43:02,076 INFO L78 Accepts]: Start accepts. Automaton has 29769 states and 41714 transitions. Word has length 172 [2022-11-26 00:43:02,077 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:43:02,077 INFO L495 AbstractCegarLoop]: Abstraction has 29769 states and 41714 transitions. [2022-11-26 00:43:02,077 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (24), 3 states have call predecessors, (24), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2022-11-26 00:43:02,077 INFO L276 IsEmpty]: Start isEmpty. Operand 29769 states and 41714 transitions. [2022-11-26 00:43:02,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2022-11-26 00:43:02,081 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:43:02,081 INFO L195 NwaCegarLoop]: trace histogram [13, 9, 9, 9, 9, 9, 9, 5, 5, 4, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:43:02,081 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-26 00:43:02,082 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-26 00:43:02,082 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:43:02,082 INFO L85 PathProgramCache]: Analyzing trace with hash -1820995875, now seen corresponding path program 1 times [2022-11-26 00:43:02,083 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:43:02,083 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1762906117] [2022-11-26 00:43:02,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:43:02,083 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:43:02,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:43:02,478 INFO L134 CoverageAnalysis]: Checked inductivity of 425 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 419 trivial. 0 not checked. [2022-11-26 00:43:02,478 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:43:02,478 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1762906117] [2022-11-26 00:43:02,479 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1762906117] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:43:02,479 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:43:02,479 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-26 00:43:02,479 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [255848434] [2022-11-26 00:43:02,479 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:43:02,480 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-26 00:43:02,481 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:43:02,481 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-26 00:43:02,481 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-26 00:43:02,482 INFO L87 Difference]: Start difference. First operand 29769 states and 41714 transitions. Second operand has 5 states, 5 states have (on average 10.0) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (25), 3 states have call predecessors, (25), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2022-11-26 00:43:06,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:43:06,434 INFO L93 Difference]: Finished difference Result 29775 states and 41719 transitions. [2022-11-26 00:43:06,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-26 00:43:06,435 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (25), 3 states have call predecessors, (25), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 177 [2022-11-26 00:43:06,436 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:43:06,619 INFO L225 Difference]: With dead ends: 29775 [2022-11-26 00:43:06,619 INFO L226 Difference]: Without dead ends: 29773 [2022-11-26 00:43:06,637 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-26 00:43:06,639 INFO L413 NwaCegarLoop]: 1292 mSDtfsCounter, 1457 mSDsluCounter, 2564 mSDsCounter, 0 mSdLazyCounter, 692 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1466 SdHoareTripleChecker+Valid, 3856 SdHoareTripleChecker+Invalid, 693 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 692 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-11-26 00:43:06,639 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1466 Valid, 3856 Invalid, 693 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 692 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-11-26 00:43:06,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29773 states. [2022-11-26 00:43:08,575 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29773 to 29773. [2022-11-26 00:43:08,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29773 states, 17295 states have (on average 1.268054350968488) internal successors, (21931), 18061 states have internal predecessors, (21931), 9880 states have call successors, (9880), 2680 states have call predecessors, (9880), 2595 states have return successors, (9906), 9381 states have call predecessors, (9906), 9876 states have call successors, (9906) [2022-11-26 00:43:08,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29773 states to 29773 states and 41717 transitions. [2022-11-26 00:43:08,854 INFO L78 Accepts]: Start accepts. Automaton has 29773 states and 41717 transitions. Word has length 177 [2022-11-26 00:43:08,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:43:08,855 INFO L495 AbstractCegarLoop]: Abstraction has 29773 states and 41717 transitions. [2022-11-26 00:43:08,855 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (25), 3 states have call predecessors, (25), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2022-11-26 00:43:08,855 INFO L276 IsEmpty]: Start isEmpty. Operand 29773 states and 41717 transitions. [2022-11-26 00:43:08,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2022-11-26 00:43:08,859 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:43:08,859 INFO L195 NwaCegarLoop]: trace histogram [13, 9, 9, 9, 9, 9, 9, 5, 5, 5, 4, 4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:43:08,860 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-26 00:43:08,860 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-26 00:43:08,860 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:43:08,860 INFO L85 PathProgramCache]: Analyzing trace with hash 1367358958, now seen corresponding path program 1 times [2022-11-26 00:43:08,861 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:43:08,861 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [998742743] [2022-11-26 00:43:08,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:43:08,861 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:43:08,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:43:09,232 INFO L134 CoverageAnalysis]: Checked inductivity of 438 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 430 trivial. 0 not checked. [2022-11-26 00:43:09,232 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:43:09,233 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [998742743] [2022-11-26 00:43:09,233 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [998742743] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:43:09,233 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:43:09,233 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-26 00:43:09,233 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1895443320] [2022-11-26 00:43:09,233 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:43:09,234 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-26 00:43:09,234 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:43:09,235 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-26 00:43:09,235 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-26 00:43:09,235 INFO L87 Difference]: Start difference. First operand 29773 states and 41717 transitions. Second operand has 5 states, 5 states have (on average 10.0) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (26), 3 states have call predecessors, (26), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2022-11-26 00:43:13,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:43:13,394 INFO L93 Difference]: Finished difference Result 29779 states and 41722 transitions. [2022-11-26 00:43:13,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-26 00:43:13,399 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (26), 3 states have call predecessors, (26), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) Word has length 181 [2022-11-26 00:43:13,399 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:43:13,483 INFO L225 Difference]: With dead ends: 29779 [2022-11-26 00:43:13,483 INFO L226 Difference]: Without dead ends: 29777 [2022-11-26 00:43:13,492 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-26 00:43:13,493 INFO L413 NwaCegarLoop]: 1292 mSDtfsCounter, 1457 mSDsluCounter, 2564 mSDsCounter, 0 mSdLazyCounter, 692 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1465 SdHoareTripleChecker+Valid, 3856 SdHoareTripleChecker+Invalid, 693 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 692 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-11-26 00:43:13,493 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1465 Valid, 3856 Invalid, 693 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 692 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2022-11-26 00:43:13,511 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29777 states. [2022-11-26 00:43:15,575 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29777 to 29777. [2022-11-26 00:43:15,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29777 states, 17298 states have (on average 1.268007862180599) internal successors, (21934), 18064 states have internal predecessors, (21934), 9880 states have call successors, (9880), 2681 states have call predecessors, (9880), 2596 states have return successors, (9906), 9381 states have call predecessors, (9906), 9876 states have call successors, (9906) [2022-11-26 00:43:15,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29777 states to 29777 states and 41720 transitions. [2022-11-26 00:43:15,713 INFO L78 Accepts]: Start accepts. Automaton has 29777 states and 41720 transitions. Word has length 181 [2022-11-26 00:43:15,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:43:15,714 INFO L495 AbstractCegarLoop]: Abstraction has 29777 states and 41720 transitions. [2022-11-26 00:43:15,714 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (26), 3 states have call predecessors, (26), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2022-11-26 00:43:15,714 INFO L276 IsEmpty]: Start isEmpty. Operand 29777 states and 41720 transitions. [2022-11-26 00:43:15,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2022-11-26 00:43:15,719 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:43:15,719 INFO L195 NwaCegarLoop]: trace histogram [13, 9, 9, 9, 9, 9, 9, 6, 5, 5, 5, 5, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:43:15,719 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-26 00:43:15,720 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-26 00:43:15,720 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:43:15,720 INFO L85 PathProgramCache]: Analyzing trace with hash -1371093955, now seen corresponding path program 1 times [2022-11-26 00:43:15,721 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:43:15,721 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [608765432] [2022-11-26 00:43:15,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:43:15,721 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:43:15,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:43:16,128 INFO L134 CoverageAnalysis]: Checked inductivity of 457 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 447 trivial. 0 not checked. [2022-11-26 00:43:16,128 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:43:16,128 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [608765432] [2022-11-26 00:43:16,129 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [608765432] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:43:16,129 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:43:16,129 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-26 00:43:16,129 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [982866615] [2022-11-26 00:43:16,129 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:43:16,130 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-26 00:43:16,131 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:43:16,131 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-26 00:43:16,132 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-26 00:43:16,132 INFO L87 Difference]: Start difference. First operand 29777 states and 41720 transitions. Second operand has 5 states, 5 states have (on average 10.0) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (27), 3 states have call predecessors, (27), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2022-11-26 00:43:20,566 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:43:20,566 INFO L93 Difference]: Finished difference Result 29783 states and 41725 transitions. [2022-11-26 00:43:20,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-26 00:43:20,575 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (27), 3 states have call predecessors, (27), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) Word has length 187 [2022-11-26 00:43:20,576 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:43:20,729 INFO L225 Difference]: With dead ends: 29783 [2022-11-26 00:43:20,729 INFO L226 Difference]: Without dead ends: 29781 [2022-11-26 00:43:20,742 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-26 00:43:20,743 INFO L413 NwaCegarLoop]: 1292 mSDtfsCounter, 1457 mSDsluCounter, 2564 mSDsCounter, 0 mSdLazyCounter, 692 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1464 SdHoareTripleChecker+Valid, 3856 SdHoareTripleChecker+Invalid, 693 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 692 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-11-26 00:43:20,743 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1464 Valid, 3856 Invalid, 693 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 692 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2022-11-26 00:43:20,766 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29781 states. [2022-11-26 00:43:22,904 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29781 to 29781. [2022-11-26 00:43:22,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29781 states, 17301 states have (on average 1.267961389515057) internal successors, (21937), 18067 states have internal predecessors, (21937), 9880 states have call successors, (9880), 2682 states have call predecessors, (9880), 2597 states have return successors, (9906), 9381 states have call predecessors, (9906), 9876 states have call successors, (9906) [2022-11-26 00:43:23,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29781 states to 29781 states and 41723 transitions. [2022-11-26 00:43:23,032 INFO L78 Accepts]: Start accepts. Automaton has 29781 states and 41723 transitions. Word has length 187 [2022-11-26 00:43:23,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:43:23,032 INFO L495 AbstractCegarLoop]: Abstraction has 29781 states and 41723 transitions. [2022-11-26 00:43:23,033 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (27), 3 states have call predecessors, (27), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2022-11-26 00:43:23,033 INFO L276 IsEmpty]: Start isEmpty. Operand 29781 states and 41723 transitions. [2022-11-26 00:43:23,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2022-11-26 00:43:23,037 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:43:23,038 INFO L195 NwaCegarLoop]: trace histogram [13, 9, 9, 9, 9, 9, 9, 7, 6, 6, 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, 1, 1, 1, 1, 1, 1] [2022-11-26 00:43:23,038 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-26 00:43:23,038 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-26 00:43:23,039 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:43:23,039 INFO L85 PathProgramCache]: Analyzing trace with hash -2030076091, now seen corresponding path program 1 times [2022-11-26 00:43:23,039 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:43:23,039 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [121022730] [2022-11-26 00:43:23,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:43:23,040 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:43:23,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:43:23,427 INFO L134 CoverageAnalysis]: Checked inductivity of 471 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 459 trivial. 0 not checked. [2022-11-26 00:43:23,428 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:43:23,428 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [121022730] [2022-11-26 00:43:23,428 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [121022730] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:43:23,428 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:43:23,428 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-26 00:43:23,429 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [89796056] [2022-11-26 00:43:23,429 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:43:23,429 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-26 00:43:23,429 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:43:23,430 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-26 00:43:23,430 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-26 00:43:23,430 INFO L87 Difference]: Start difference. First operand 29781 states and 41723 transitions. Second operand has 5 states, 5 states have (on average 9.6) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (26), 3 states have call predecessors, (26), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24)