./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-tun.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eee09803-36c7-442d-be5a-d68d648daca2/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eee09803-36c7-442d-be5a-d68d648daca2/bin/utaipan-gh47qXpMRh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eee09803-36c7-442d-be5a-d68d648daca2/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eee09803-36c7-442d-be5a-d68d648daca2/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-tun.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eee09803-36c7-442d-be5a-d68d648daca2/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eee09803-36c7-442d-be5a-d68d648daca2/bin/utaipan-gh47qXpMRh --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 97cecdf2f398250e9c44f19d8d35ed7fcac528daa12758af85552fae0658b596 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-14 12:09:57,796 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 12:09:57,797 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 12:09:57,816 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 12:09:57,817 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 12:09:57,818 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 12:09:57,819 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 12:09:57,820 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 12:09:57,822 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 12:09:57,823 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 12:09:57,824 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 12:09:57,825 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 12:09:57,825 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 12:09:57,826 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 12:09:57,828 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 12:09:57,829 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 12:09:57,830 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 12:09:57,831 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 12:09:57,832 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 12:09:57,834 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 12:09:57,835 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 12:09:57,837 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 12:09:57,838 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 12:09:57,839 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 12:09:57,842 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 12:09:57,843 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 12:09:57,843 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 12:09:57,844 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 12:09:57,844 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 12:09:57,845 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 12:09:57,846 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 12:09:57,846 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 12:09:57,847 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 12:09:57,848 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 12:09:57,849 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 12:09:57,849 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 12:09:57,850 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 12:09:57,850 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 12:09:57,850 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 12:09:57,851 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 12:09:57,852 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 12:09:57,852 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eee09803-36c7-442d-be5a-d68d648daca2/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-12-14 12:09:57,874 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 12:09:57,874 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 12:09:57,874 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 12:09:57,875 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 12:09:57,875 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 12:09:57,875 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 12:09:57,876 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 12:09:57,876 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 12:09:57,876 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 12:09:57,876 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 12:09:57,876 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 12:09:57,877 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 12:09:57,877 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 12:09:57,877 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 12:09:57,877 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 12:09:57,877 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 12:09:57,878 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 12:09:57,878 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 12:09:57,878 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 12:09:57,879 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 12:09:57,879 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 12:09:57,879 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 12:09:57,879 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 12:09:57,879 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 12:09:57,880 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 12:09:57,880 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 12:09:57,880 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 12:09:57,880 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 12:09:57,880 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 12:09:57,880 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 12:09:57,881 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 12:09:57,881 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 12:09:57,881 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 12:09:57,881 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 12:09:57,881 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 12:09:57,882 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 12:09:57,882 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 12:09:57,882 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 12:09:57,882 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_eee09803-36c7-442d-be5a-d68d648daca2/bin/utaipan-gh47qXpMRh/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eee09803-36c7-442d-be5a-d68d648daca2/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 97cecdf2f398250e9c44f19d8d35ed7fcac528daa12758af85552fae0658b596 [2022-12-14 12:09:58,069 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 12:09:58,084 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 12:09:58,086 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 12:09:58,087 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 12:09:58,087 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 12:09:58,088 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eee09803-36c7-442d-be5a-d68d648daca2/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-tun.cil.i [2022-12-14 12:10:00,652 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 12:10:01,092 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 12:10:01,093 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eee09803-36c7-442d-be5a-d68d648daca2/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-tun.cil.i [2022-12-14 12:10:01,124 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eee09803-36c7-442d-be5a-d68d648daca2/bin/utaipan-gh47qXpMRh/data/7268645de/dcd5929e85794c59ba77776cf4978211/FLAGc4c7fb9c7 [2022-12-14 12:10:01,134 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eee09803-36c7-442d-be5a-d68d648daca2/bin/utaipan-gh47qXpMRh/data/7268645de/dcd5929e85794c59ba77776cf4978211 [2022-12-14 12:10:01,137 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 12:10:01,138 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 12:10:01,139 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 12:10:01,139 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 12:10:01,143 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 12:10:01,143 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 12:10:01" (1/1) ... [2022-12-14 12:10:01,145 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@72a236d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:10:01, skipping insertion in model container [2022-12-14 12:10:01,145 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 12:10:01" (1/1) ... [2022-12-14 12:10:01,152 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 12:10:01,268 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 12:10:01,679 WARN L623 FunctionHandler]: Unknown extern function __list_add [2022-12-14 12:10:01,693 WARN L623 FunctionHandler]: Unknown extern function __list_del_entry [2022-12-14 12:10:01,797 WARN L623 FunctionHandler]: Unknown extern function __bad_percpu_size [2022-12-14 12:10:01,925 WARN L623 FunctionHandler]: Unknown extern function __bad_percpu_size [2022-12-14 12:10:01,931 WARN L623 FunctionHandler]: Unknown extern function __bad_percpu_size [2022-12-14 12:10:01,953 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_bh [2022-12-14 12:10:01,962 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_unlock_bh [2022-12-14 12:10:02,014 WARN L623 FunctionHandler]: Unknown extern function lock_acquire [2022-12-14 12:10:02,017 WARN L623 FunctionHandler]: Unknown extern function lock_release [2022-12-14 12:10:02,025 WARN L623 FunctionHandler]: Unknown extern function debug_lockdep_rcu_enabled [2022-12-14 12:10:02,025 WARN L623 FunctionHandler]: Unknown extern function rcu_is_watching [2022-12-14 12:10:02,026 WARN L623 FunctionHandler]: Unknown extern function rcu_lockdep_current_cpu_online [2022-12-14 12:10:02,026 WARN L623 FunctionHandler]: Unknown extern function lock_is_held [2022-12-14 12:10:02,031 WARN L623 FunctionHandler]: Unknown extern function debug_lockdep_rcu_enabled [2022-12-14 12:10:02,031 WARN L623 FunctionHandler]: Unknown extern function rcu_is_watching [2022-12-14 12:10:02,032 WARN L623 FunctionHandler]: Unknown extern function lockdep_rcu_suspicious [2022-12-14 12:10:02,037 WARN L623 FunctionHandler]: Unknown extern function debug_lockdep_rcu_enabled [2022-12-14 12:10:02,037 WARN L623 FunctionHandler]: Unknown extern function rcu_is_watching [2022-12-14 12:10:02,038 WARN L623 FunctionHandler]: Unknown extern function lockdep_rcu_suspicious [2022-12-14 12:10:02,217 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 12:10:02,243 WARN L623 FunctionHandler]: Unknown extern function might_fault [2022-12-14 12:10:02,244 WARN L623 FunctionHandler]: Unknown extern function _copy_from_user [2022-12-14 12:10:02,244 WARN L623 FunctionHandler]: Unknown extern function _copy_from_user [2022-12-14 12:10:02,245 WARN L623 FunctionHandler]: Unknown extern function __copy_from_user_overflow [2022-12-14 12:10:02,249 WARN L623 FunctionHandler]: Unknown extern function might_fault [2022-12-14 12:10:02,249 WARN L623 FunctionHandler]: Unknown extern function _copy_to_user [2022-12-14 12:10:02,250 WARN L623 FunctionHandler]: Unknown extern function _copy_to_user [2022-12-14 12:10:02,251 WARN L623 FunctionHandler]: Unknown extern function __copy_to_user_overflow [2022-12-14 12:10:02,276 WARN L623 FunctionHandler]: Unknown extern function __skb_get_hash [2022-12-14 12:10:02,343 WARN L623 FunctionHandler]: Unknown extern function skb_flow_dissect [2022-12-14 12:10:02,363 WARN L623 FunctionHandler]: Unknown extern function skb_copy_ubufs [2022-12-14 12:10:02,390 WARN L623 FunctionHandler]: Unknown extern function skb_tstamp_tx [2022-12-14 12:10:02,398 WARN L623 FunctionHandler]: Unknown extern function nf_conntrack_destroy [2022-12-14 12:10:02,402 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 12:10:02,442 WARN L623 FunctionHandler]: Unknown extern function __put_net [2022-12-14 12:10:02,481 WARN L623 FunctionHandler]: Unknown extern function __bad_percpu_size [2022-12-14 12:10:02,481 WARN L623 FunctionHandler]: Unknown extern function __bad_percpu_size [2022-12-14 12:10:02,482 WARN L623 FunctionHandler]: Unknown extern function __bad_percpu_size [2022-12-14 12:10:02,483 WARN L623 FunctionHandler]: Unknown extern function __bad_percpu_size [2022-12-14 12:10:02,483 WARN L623 FunctionHandler]: Unknown extern function __bad_size_call_parameter [2022-12-14 12:10:02,536 WARN L623 FunctionHandler]: Unknown extern function unregister_netdevice_queue [2022-12-14 12:10:02,573 WARN L623 FunctionHandler]: Unknown extern function netpoll_trap [2022-12-14 12:10:02,573 WARN L623 FunctionHandler]: Unknown extern function __netif_schedule [2022-12-14 12:10:02,582 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-12-14 12:10:02,583 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 12:10:02,609 WARN L623 FunctionHandler]: Unknown extern function __bad_percpu_size [2022-12-14 12:10:02,610 WARN L623 FunctionHandler]: Unknown extern function __bad_percpu_size [2022-12-14 12:10:02,610 WARN L623 FunctionHandler]: Unknown extern function __bad_percpu_size [2022-12-14 12:10:02,611 WARN L623 FunctionHandler]: Unknown extern function __bad_percpu_size [2022-12-14 12:10:02,611 WARN L623 FunctionHandler]: Unknown extern function __bad_size_call_parameter [2022-12-14 12:10:02,616 WARN L623 FunctionHandler]: Unknown extern function __bad_percpu_size [2022-12-14 12:10:02,617 WARN L623 FunctionHandler]: Unknown extern function __bad_percpu_size [2022-12-14 12:10:02,617 WARN L623 FunctionHandler]: Unknown extern function __bad_percpu_size [2022-12-14 12:10:02,618 WARN L623 FunctionHandler]: Unknown extern function __bad_percpu_size [2022-12-14 12:10:02,618 WARN L623 FunctionHandler]: Unknown extern function __bad_size_call_parameter [2022-12-14 12:10:02,669 WARN L623 FunctionHandler]: Unknown extern function get_random_bytes [2022-12-14 12:10:02,722 WARN L623 FunctionHandler]: Unknown extern function debug_lockdep_rcu_enabled [2022-12-14 12:10:02,722 WARN L623 FunctionHandler]: Unknown extern function lockdep_rcu_suspicious [2022-12-14 12:10:02,726 WARN L623 FunctionHandler]: Unknown extern function debug_lockdep_rcu_enabled [2022-12-14 12:10:02,727 WARN L623 FunctionHandler]: Unknown extern function lockdep_rcu_suspicious [2022-12-14 12:10:02,746 WARN L623 FunctionHandler]: Unknown extern function sk_free [2022-12-14 12:10:02,753 WARN L623 FunctionHandler]: Unknown extern function __compiletime_assert_1712 [2022-12-14 12:10:02,753 WARN L623 FunctionHandler]: Unknown extern function debug_lockdep_rcu_enabled [2022-12-14 12:10:02,784 WARN L623 FunctionHandler]: Unknown extern function debug_lockdep_rcu_enabled [2022-12-14 12:10:02,785 WARN L623 FunctionHandler]: Unknown extern function debug_lockdep_rcu_enabled [2022-12-14 12:10:02,802 WARN L623 FunctionHandler]: Unknown extern function __compiletime_assert_240 [2022-12-14 12:10:02,803 WARN L623 FunctionHandler]: Unknown extern function kfree_call_rcu [2022-12-14 12:10:02,825 WARN L623 FunctionHandler]: Unknown extern function round_jiffies_up [2022-12-14 12:10:02,832 WARN L623 FunctionHandler]: Unknown extern function round_jiffies_up [2022-12-14 12:10:02,847 WARN L623 FunctionHandler]: Unknown extern function debug_lockdep_rcu_enabled [2022-12-14 12:10:02,848 WARN L623 FunctionHandler]: Unknown extern function in_egroup_p [2022-12-14 12:10:02,849 WARN L623 FunctionHandler]: Unknown extern function ns_capable [2022-12-14 12:10:02,853 WARN L623 FunctionHandler]: Unknown extern function netif_set_real_num_tx_queues [2022-12-14 12:10:02,853 WARN L623 FunctionHandler]: Unknown extern function netif_set_real_num_rx_queues [2022-12-14 12:10:02,866 WARN L623 FunctionHandler]: Unknown extern function skb_queue_purge [2022-12-14 12:10:02,866 WARN L623 FunctionHandler]: Unknown extern function skb_queue_purge [2022-12-14 12:10:02,870 WARN L623 FunctionHandler]: Unknown extern function debug_lockdep_rcu_enabled [2022-12-14 12:10:02,871 WARN L623 FunctionHandler]: Unknown extern function lockdep_rtnl_is_held [2022-12-14 12:10:02,871 WARN L623 FunctionHandler]: Unknown extern function lockdep_rcu_suspicious [2022-12-14 12:10:02,872 WARN L623 FunctionHandler]: Unknown extern function debug_lockdep_rcu_enabled [2022-12-14 12:10:02,873 WARN L623 FunctionHandler]: Unknown extern function lockdep_rtnl_is_held [2022-12-14 12:10:02,873 WARN L623 FunctionHandler]: Unknown extern function lockdep_rcu_suspicious [2022-12-14 12:10:02,874 WARN L623 FunctionHandler]: Unknown extern function synchronize_net [2022-12-14 12:10:02,875 WARN L623 FunctionHandler]: Unknown extern function netif_carrier_off [2022-12-14 12:10:02,876 WARN L623 FunctionHandler]: Unknown extern function sk_release_kernel [2022-12-14 12:10:02,880 WARN L623 FunctionHandler]: Unknown extern function rtnl_lock [2022-12-14 12:10:02,881 WARN L623 FunctionHandler]: Unknown extern function rtnl_unlock [2022-12-14 12:10:02,885 WARN L623 FunctionHandler]: Unknown extern function debug_lockdep_rcu_enabled [2022-12-14 12:10:02,885 WARN L623 FunctionHandler]: Unknown extern function lockdep_rtnl_is_held [2022-12-14 12:10:02,886 WARN L623 FunctionHandler]: Unknown extern function lockdep_rcu_suspicious [2022-12-14 12:10:02,886 WARN L623 FunctionHandler]: Unknown extern function __wake_up [2022-12-14 12:10:02,887 WARN L623 FunctionHandler]: Unknown extern function __wake_up [2022-12-14 12:10:02,888 WARN L623 FunctionHandler]: Unknown extern function synchronize_net [2022-12-14 12:10:02,888 WARN L623 FunctionHandler]: Unknown extern function debug_lockdep_rcu_enabled [2022-12-14 12:10:02,889 WARN L623 FunctionHandler]: Unknown extern function lockdep_rtnl_is_held [2022-12-14 12:10:02,889 WARN L623 FunctionHandler]: Unknown extern function lockdep_rcu_suspicious [2022-12-14 12:10:02,891 WARN L623 FunctionHandler]: Unknown extern function module_put [2022-12-14 12:10:02,897 WARN L623 FunctionHandler]: Unknown extern function security_tun_dev_attach [2022-12-14 12:10:02,897 WARN L623 FunctionHandler]: Unknown extern function debug_lockdep_rcu_enabled [2022-12-14 12:10:02,898 WARN L623 FunctionHandler]: Unknown extern function lockdep_rtnl_is_held [2022-12-14 12:10:02,898 WARN L623 FunctionHandler]: Unknown extern function lockdep_rcu_suspicious [2022-12-14 12:10:02,900 WARN L623 FunctionHandler]: Unknown extern function sk_attach_filter [2022-12-14 12:10:02,907 WARN L623 FunctionHandler]: Unknown extern function debug_lockdep_rcu_enabled [2022-12-14 12:10:02,907 WARN L623 FunctionHandler]: Unknown extern function lockdep_rcu_suspicious [2022-12-14 12:10:02,923 WARN L623 FunctionHandler]: Unknown extern function crc32_le [2022-12-14 12:10:02,924 WARN L623 FunctionHandler]: Unknown extern function bitrev32 [2022-12-14 12:10:02,929 WARN L623 FunctionHandler]: Unknown extern function crc32_le [2022-12-14 12:10:02,930 WARN L623 FunctionHandler]: Unknown extern function bitrev32 [2022-12-14 12:10:02,939 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 12:10:02,971 WARN L623 FunctionHandler]: Unknown extern function debug_lockdep_rcu_enabled [2022-12-14 12:10:02,972 WARN L623 FunctionHandler]: Unknown extern function lockdep_rcu_suspicious [2022-12-14 12:10:02,974 WARN L623 FunctionHandler]: Unknown extern function sk_filter [2022-12-14 12:10:02,975 WARN L623 FunctionHandler]: Unknown extern function sock_tx_timestamp [2022-12-14 12:10:02,976 WARN L623 FunctionHandler]: Unknown extern function skb_queue_tail [2022-12-14 12:10:02,976 WARN L623 FunctionHandler]: Unknown extern function kill_fasync [2022-12-14 12:10:02,976 WARN L623 FunctionHandler]: Unknown extern function __wake_up [2022-12-14 12:10:02,977 WARN L623 FunctionHandler]: Unknown extern function skb_tx_error [2022-12-14 12:10:02,977 WARN L623 FunctionHandler]: Unknown extern function kfree_skb [2022-12-14 12:10:03,006 WARN L623 FunctionHandler]: Unknown extern function init_timer_key [2022-12-14 12:10:03,007 WARN L623 FunctionHandler]: Unknown extern function round_jiffies_up [2022-12-14 12:10:03,019 WARN L623 FunctionHandler]: Unknown extern function ether_setup [2022-12-14 12:10:03,032 WARN L623 FunctionHandler]: Unknown extern function sock_alloc_send_pskb [2022-12-14 12:10:03,033 WARN L623 FunctionHandler]: Unknown extern function skb_put [2022-12-14 12:10:03,041 WARN L623 FunctionHandler]: Unknown extern function memcpy_fromiovecend [2022-12-14 12:10:03,042 WARN L623 FunctionHandler]: Unknown extern function memcpy_fromiovecend [2022-12-14 12:10:03,044 WARN L623 FunctionHandler]: Unknown extern function iov_pages [2022-12-14 12:10:03,046 WARN L623 FunctionHandler]: Unknown extern function zerocopy_sg_from_iovec [2022-12-14 12:10:03,047 WARN L623 FunctionHandler]: Unknown extern function skb_copy_datagram_from_iovec [2022-12-14 12:10:03,048 WARN L623 FunctionHandler]: Unknown extern function kfree_skb [2022-12-14 12:10:03,048 WARN L623 FunctionHandler]: Unknown extern function skb_partial_csum_set [2022-12-14 12:10:03,049 WARN L623 FunctionHandler]: Unknown extern function kfree_skb [2022-12-14 12:10:03,050 WARN L623 FunctionHandler]: Unknown extern function kfree_skb [2022-12-14 12:10:03,051 WARN L623 FunctionHandler]: Unknown extern function eth_type_trans [2022-12-14 12:10:03,054 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-12-14 12:10:03,056 WARN L623 FunctionHandler]: Unknown extern function kfree_skb [2022-12-14 12:10:03,057 WARN L623 FunctionHandler]: Unknown extern function kfree_skb [2022-12-14 12:10:03,058 WARN L623 FunctionHandler]: Unknown extern function netif_rx_ni [2022-12-14 12:10:03,071 WARN L623 FunctionHandler]: Unknown extern function memcpy_toiovecend [2022-12-14 12:10:03,073 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 12:10:03,074 WARN L623 FunctionHandler]: Unknown extern function print_hex_dump [2022-12-14 12:10:03,075 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-12-14 12:10:03,077 WARN L623 FunctionHandler]: Unknown extern function memcpy_toiovecend [2022-12-14 12:10:03,078 WARN L623 FunctionHandler]: Unknown extern function skb_copy_datagram_const_iovec [2022-12-14 12:10:03,079 WARN L623 FunctionHandler]: Unknown extern function memcpy_toiovecend [2022-12-14 12:10:03,079 WARN L623 FunctionHandler]: Unknown extern function skb_copy_datagram_const_iovec [2022-12-14 12:10:03,086 WARN L623 FunctionHandler]: Unknown extern function add_wait_queue [2022-12-14 12:10:03,086 WARN L623 FunctionHandler]: Unknown extern function skb_dequeue [2022-12-14 12:10:03,087 WARN L623 FunctionHandler]: Unknown extern function schedule [2022-12-14 12:10:03,088 WARN L623 FunctionHandler]: Unknown extern function kfree_skb [2022-12-14 12:10:03,088 WARN L623 FunctionHandler]: Unknown extern function remove_wait_queue [2022-12-14 12:10:03,100 WARN L623 FunctionHandler]: Unknown extern function security_tun_dev_free_security [2022-12-14 12:10:03,117 WARN L623 FunctionHandler]: Unknown extern function __wake_up_sync_key [2022-12-14 12:10:03,117 WARN L623 FunctionHandler]: Unknown extern function kill_fasync [2022-12-14 12:10:03,129 WARN L623 FunctionHandler]: Unknown extern function sock_recv_errqueue [2022-12-14 12:10:03,148 WARN L623 FunctionHandler]: Unknown extern function sprintf [2022-12-14 12:10:03,154 WARN L623 FunctionHandler]: Unknown extern function debug_lockdep_rcu_enabled [2022-12-14 12:10:03,154 WARN L623 FunctionHandler]: Unknown extern function from_kuid_munged [2022-12-14 12:10:03,154 WARN L623 FunctionHandler]: Unknown extern function sprintf [2022-12-14 12:10:03,155 WARN L623 FunctionHandler]: Unknown extern function sprintf [2022-12-14 12:10:03,161 WARN L623 FunctionHandler]: Unknown extern function debug_lockdep_rcu_enabled [2022-12-14 12:10:03,161 WARN L623 FunctionHandler]: Unknown extern function from_kgid_munged [2022-12-14 12:10:03,161 WARN L623 FunctionHandler]: Unknown extern function sprintf [2022-12-14 12:10:03,162 WARN L623 FunctionHandler]: Unknown extern function sprintf [2022-12-14 12:10:03,169 WARN L623 FunctionHandler]: Unknown extern function __dev_get_by_name [2022-12-14 12:10:03,171 WARN L623 FunctionHandler]: Unknown extern function security_tun_dev_open [2022-12-14 12:10:03,172 WARN L623 FunctionHandler]: Unknown extern function ns_capable [2022-12-14 12:10:03,173 WARN L623 FunctionHandler]: Unknown extern function security_tun_dev_create [2022-12-14 12:10:03,175 WARN L623 FunctionHandler]: Unknown extern function __raw_spin_lock_init [2022-12-14 12:10:03,176 WARN L623 FunctionHandler]: Unknown extern function security_tun_dev_alloc_security [2022-12-14 12:10:03,177 WARN L623 FunctionHandler]: Unknown extern function device_create_file [2022-12-14 12:10:03,177 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 12:10:03,177 WARN L623 FunctionHandler]: Unknown extern function device_create_file [2022-12-14 12:10:03,178 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 12:10:03,178 WARN L623 FunctionHandler]: Unknown extern function device_create_file [2022-12-14 12:10:03,178 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 12:10:03,179 WARN L623 FunctionHandler]: Unknown extern function netif_carrier_on [2022-12-14 12:10:03,181 WARN L623 FunctionHandler]: Unknown extern function security_tun_dev_free_security [2022-12-14 12:10:03,193 WARN L623 FunctionHandler]: Unknown extern function netdev_update_features [2022-12-14 12:10:03,198 WARN L623 FunctionHandler]: Unknown extern function debug_lockdep_rcu_enabled [2022-12-14 12:10:03,199 WARN L623 FunctionHandler]: Unknown extern function lockdep_rtnl_is_held [2022-12-14 12:10:03,199 WARN L623 FunctionHandler]: Unknown extern function lockdep_rcu_suspicious [2022-12-14 12:10:03,200 WARN L623 FunctionHandler]: Unknown extern function sk_detach_filter [2022-12-14 12:10:03,205 WARN L623 FunctionHandler]: Unknown extern function debug_lockdep_rcu_enabled [2022-12-14 12:10:03,205 WARN L623 FunctionHandler]: Unknown extern function lockdep_rtnl_is_held [2022-12-14 12:10:03,206 WARN L623 FunctionHandler]: Unknown extern function lockdep_rcu_suspicious [2022-12-14 12:10:03,206 WARN L623 FunctionHandler]: Unknown extern function sk_attach_filter [2022-12-14 12:10:03,212 WARN L623 FunctionHandler]: Unknown extern function debug_lockdep_rcu_enabled [2022-12-14 12:10:03,212 WARN L623 FunctionHandler]: Unknown extern function lockdep_rtnl_is_held [2022-12-14 12:10:03,213 WARN L623 FunctionHandler]: Unknown extern function lockdep_rcu_suspicious [2022-12-14 12:10:03,218 WARN L623 FunctionHandler]: Unknown extern function rtnl_lock [2022-12-14 12:10:03,219 WARN L623 FunctionHandler]: Unknown extern function security_tun_dev_attach_queue [2022-12-14 12:10:03,220 WARN L623 FunctionHandler]: Unknown extern function debug_lockdep_rcu_enabled [2022-12-14 12:10:03,220 WARN L623 FunctionHandler]: Unknown extern function lockdep_rtnl_is_held [2022-12-14 12:10:03,220 WARN L623 FunctionHandler]: Unknown extern function lockdep_rcu_suspicious [2022-12-14 12:10:03,221 WARN L623 FunctionHandler]: Unknown extern function rtnl_unlock [2022-12-14 12:10:03,227 WARN L623 FunctionHandler]: Unknown extern function might_fault [2022-12-14 12:10:03,228 WARN L623 FunctionHandler]: Unknown extern function rtnl_lock [2022-12-14 12:10:03,233 WARN L623 FunctionHandler]: Unknown extern function __module_get [2022-12-14 12:10:03,233 WARN L623 FunctionHandler]: Unknown extern function module_put [2022-12-14 12:10:03,233 WARN L623 FunctionHandler]: Unknown extern function debug_lockdep_rcu_enabled [2022-12-14 12:10:03,234 WARN L623 FunctionHandler]: Unknown extern function make_kuid [2022-12-14 12:10:03,234 WARN L623 FunctionHandler]: Unknown extern function debug_lockdep_rcu_enabled [2022-12-14 12:10:03,234 WARN L623 FunctionHandler]: Unknown extern function make_kgid [2022-12-14 12:10:03,236 WARN L623 FunctionHandler]: Unknown extern function dev_set_mac_address [2022-12-14 12:10:03,238 WARN L623 FunctionHandler]: Unknown extern function rtnl_unlock [2022-12-14 12:10:03,255 WARN L623 FunctionHandler]: Unknown extern function fasync_helper [2022-12-14 12:10:03,255 WARN L623 FunctionHandler]: Unknown extern function __f_setown [2022-12-14 12:10:03,261 WARN L623 FunctionHandler]: Unknown extern function sk_alloc [2022-12-14 12:10:03,262 WARN L623 FunctionHandler]: Unknown extern function __init_waitqueue_head [2022-12-14 12:10:03,263 WARN L623 FunctionHandler]: Unknown extern function sock_init_data [2022-12-14 12:10:03,273 WARN L623 FunctionHandler]: Unknown extern function rtnl_lock [2022-12-14 12:10:03,274 WARN L623 FunctionHandler]: Unknown extern function rtnl_unlock [2022-12-14 12:10:03,274 WARN L623 FunctionHandler]: Unknown extern function seq_printf [2022-12-14 12:10:03,286 WARN L623 FunctionHandler]: Unknown extern function strlcpy [2022-12-14 12:10:03,287 WARN L623 FunctionHandler]: Unknown extern function strlcpy [2022-12-14 12:10:03,288 WARN L623 FunctionHandler]: Unknown extern function strlcpy [2022-12-14 12:10:03,288 WARN L623 FunctionHandler]: Unknown extern function strlcpy [2022-12-14 12:10:03,303 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 12:10:03,304 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 12:10:03,304 WARN L623 FunctionHandler]: Unknown extern function rtnl_link_register [2022-12-14 12:10:03,305 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 12:10:03,305 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 12:10:03,305 WARN L623 FunctionHandler]: Unknown extern function rtnl_link_unregister [2022-12-14 12:10:03,311 WARN L623 FunctionHandler]: Unknown extern function rtnl_link_unregister [2022-12-14 12:10:03,650 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 12:10:03,650 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 12:10:03,650 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 12:10:03,651 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 12:10:03,651 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 12:10:03,651 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 12:10:03,651 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 12:10:03,651 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 12:10:03,651 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 12:10:03,651 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 12:10:03,652 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 12:10:03,652 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 12:10:03,652 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 12:10:03,652 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 12:10:03,652 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 12:10:03,652 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 12:10:03,652 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 12:10:03,652 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 12:10:03,653 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 12:10:03,653 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 12:10:03,653 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 12:10:03,653 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 12:10:03,653 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 12:10:03,653 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 12:10:03,653 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 12:10:03,653 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 12:10:03,653 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 12:10:03,655 WARN L623 FunctionHandler]: Unknown extern function ethtool_op_get_ts_info [2022-12-14 12:10:03,656 WARN L623 FunctionHandler]: Unknown extern function eth_mac_addr [2022-12-14 12:10:03,656 WARN L623 FunctionHandler]: Unknown extern function eth_validate_addr [2022-12-14 12:10:03,657 WARN L623 FunctionHandler]: Unknown extern function ethtool_op_get_link [2022-12-14 12:10:03,659 WARN L623 FunctionHandler]: Unknown extern function ldv_initialize [2022-12-14 12:10:03,663 WARN L623 FunctionHandler]: Unknown extern function no_llseek [2022-12-14 12:10:03,664 WARN L623 FunctionHandler]: Unknown extern function do_sync_read [2022-12-14 12:10:03,665 WARN L623 FunctionHandler]: Unknown extern function do_sync_write [2022-12-14 12:10:03,673 WARN L623 FunctionHandler]: Unknown extern function ldv_switch_to_interrupt_context [2022-12-14 12:10:03,673 WARN L623 FunctionHandler]: Unknown extern function ldv_switch_to_process_context [2022-12-14 12:10:03,674 WARN L623 FunctionHandler]: Unknown extern function mod_timer [2022-12-14 12:10:03,675 WARN L623 FunctionHandler]: Unknown extern function mod_timer [2022-12-14 12:10:03,675 WARN L623 FunctionHandler]: Unknown extern function mod_timer [2022-12-14 12:10:03,675 WARN L623 FunctionHandler]: Unknown extern function del_timer_sync [2022-12-14 12:10:03,676 WARN L623 FunctionHandler]: Unknown extern function free_netdev [2022-12-14 12:10:03,676 WARN L623 FunctionHandler]: Unknown extern function alloc_netdev_mqs [2022-12-14 12:10:03,676 WARN L623 FunctionHandler]: Unknown extern function register_netdevice [2022-12-14 12:10:03,676 WARN L623 FunctionHandler]: Unknown extern function free_netdev [2022-12-14 12:10:03,677 WARN L623 FunctionHandler]: Unknown extern function misc_register [2022-12-14 12:10:03,677 WARN L623 FunctionHandler]: Unknown extern function misc_deregister [2022-12-14 12:10:03,721 WARN L623 FunctionHandler]: Unknown extern function ldv_check_alloc_flags [2022-12-14 12:10:03,721 WARN L623 FunctionHandler]: Unknown extern function ldv_after_alloc [2022-12-14 12:10:03,729 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 12:10:04,320 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_eee09803-36c7-442d-be5a-d68d648daca2/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-tun.cil.i[428896,428909] [2022-12-14 12:10:04,324 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_eee09803-36c7-442d-be5a-d68d648daca2/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-tun.cil.i[429065,429078] [2022-12-14 12:10:04,324 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_eee09803-36c7-442d-be5a-d68d648daca2/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-tun.cil.i[429232,429245] [2022-12-14 12:10:04,325 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_eee09803-36c7-442d-be5a-d68d648daca2/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-tun.cil.i[429400,429413] [2022-12-14 12:10:04,325 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 12:10:04,327 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 12:10:04,348 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 12:10:04,349 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 12:10:04,350 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 12:10:04,351 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 12:10:04,387 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 12:10:04,457 WARN L623 FunctionHandler]: Unknown extern function __list_add [2022-12-14 12:10:04,457 WARN L623 FunctionHandler]: Unknown extern function __list_del_entry [2022-12-14 12:10:04,459 WARN L623 FunctionHandler]: Unknown extern function __bad_percpu_size [2022-12-14 12:10:04,461 WARN L623 FunctionHandler]: Unknown extern function __bad_percpu_size [2022-12-14 12:10:04,461 WARN L623 FunctionHandler]: Unknown extern function __bad_percpu_size [2022-12-14 12:10:04,462 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_bh [2022-12-14 12:10:04,462 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_unlock_bh [2022-12-14 12:10:04,462 WARN L623 FunctionHandler]: Unknown extern function lock_acquire [2022-12-14 12:10:04,463 WARN L623 FunctionHandler]: Unknown extern function lock_release [2022-12-14 12:10:04,463 WARN L623 FunctionHandler]: Unknown extern function debug_lockdep_rcu_enabled [2022-12-14 12:10:04,463 WARN L623 FunctionHandler]: Unknown extern function rcu_is_watching [2022-12-14 12:10:04,463 WARN L623 FunctionHandler]: Unknown extern function rcu_lockdep_current_cpu_online [2022-12-14 12:10:04,463 WARN L623 FunctionHandler]: Unknown extern function lock_is_held [2022-12-14 12:10:04,464 WARN L623 FunctionHandler]: Unknown extern function debug_lockdep_rcu_enabled [2022-12-14 12:10:04,464 WARN L623 FunctionHandler]: Unknown extern function rcu_is_watching [2022-12-14 12:10:04,464 WARN L623 FunctionHandler]: Unknown extern function lockdep_rcu_suspicious [2022-12-14 12:10:04,465 WARN L623 FunctionHandler]: Unknown extern function debug_lockdep_rcu_enabled [2022-12-14 12:10:04,465 WARN L623 FunctionHandler]: Unknown extern function rcu_is_watching [2022-12-14 12:10:04,465 WARN L623 FunctionHandler]: Unknown extern function lockdep_rcu_suspicious [2022-12-14 12:10:04,469 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 12:10:04,470 WARN L623 FunctionHandler]: Unknown extern function might_fault [2022-12-14 12:10:04,470 WARN L623 FunctionHandler]: Unknown extern function _copy_from_user [2022-12-14 12:10:04,470 WARN L623 FunctionHandler]: Unknown extern function _copy_from_user [2022-12-14 12:10:04,470 WARN L623 FunctionHandler]: Unknown extern function __copy_from_user_overflow [2022-12-14 12:10:04,471 WARN L623 FunctionHandler]: Unknown extern function might_fault [2022-12-14 12:10:04,471 WARN L623 FunctionHandler]: Unknown extern function _copy_to_user [2022-12-14 12:10:04,471 WARN L623 FunctionHandler]: Unknown extern function _copy_to_user [2022-12-14 12:10:04,471 WARN L623 FunctionHandler]: Unknown extern function __copy_to_user_overflow [2022-12-14 12:10:04,471 WARN L623 FunctionHandler]: Unknown extern function __skb_get_hash [2022-12-14 12:10:04,474 WARN L623 FunctionHandler]: Unknown extern function skb_flow_dissect [2022-12-14 12:10:04,480 WARN L623 FunctionHandler]: Unknown extern function skb_copy_ubufs [2022-12-14 12:10:04,481 WARN L623 FunctionHandler]: Unknown extern function skb_tstamp_tx [2022-12-14 12:10:04,481 WARN L623 FunctionHandler]: Unknown extern function nf_conntrack_destroy [2022-12-14 12:10:04,482 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 12:10:04,483 WARN L623 FunctionHandler]: Unknown extern function __put_net [2022-12-14 12:10:04,484 WARN L623 FunctionHandler]: Unknown extern function __bad_percpu_size [2022-12-14 12:10:04,485 WARN L623 FunctionHandler]: Unknown extern function __bad_percpu_size [2022-12-14 12:10:04,485 WARN L623 FunctionHandler]: Unknown extern function __bad_percpu_size [2022-12-14 12:10:04,485 WARN L623 FunctionHandler]: Unknown extern function __bad_percpu_size [2022-12-14 12:10:04,485 WARN L623 FunctionHandler]: Unknown extern function __bad_size_call_parameter [2022-12-14 12:10:04,487 WARN L623 FunctionHandler]: Unknown extern function unregister_netdevice_queue [2022-12-14 12:10:04,488 WARN L623 FunctionHandler]: Unknown extern function netpoll_trap [2022-12-14 12:10:04,488 WARN L623 FunctionHandler]: Unknown extern function __netif_schedule [2022-12-14 12:10:04,488 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-12-14 12:10:04,489 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 12:10:04,490 WARN L623 FunctionHandler]: Unknown extern function __bad_percpu_size [2022-12-14 12:10:04,490 WARN L623 FunctionHandler]: Unknown extern function __bad_percpu_size [2022-12-14 12:10:04,490 WARN L623 FunctionHandler]: Unknown extern function __bad_percpu_size [2022-12-14 12:10:04,490 WARN L623 FunctionHandler]: Unknown extern function __bad_percpu_size [2022-12-14 12:10:04,491 WARN L623 FunctionHandler]: Unknown extern function __bad_size_call_parameter [2022-12-14 12:10:04,491 WARN L623 FunctionHandler]: Unknown extern function __bad_percpu_size [2022-12-14 12:10:04,491 WARN L623 FunctionHandler]: Unknown extern function __bad_percpu_size [2022-12-14 12:10:04,491 WARN L623 FunctionHandler]: Unknown extern function __bad_percpu_size [2022-12-14 12:10:04,492 WARN L623 FunctionHandler]: Unknown extern function __bad_percpu_size [2022-12-14 12:10:04,492 WARN L623 FunctionHandler]: Unknown extern function __bad_size_call_parameter [2022-12-14 12:10:04,493 WARN L623 FunctionHandler]: Unknown extern function get_random_bytes [2022-12-14 12:10:04,495 WARN L623 FunctionHandler]: Unknown extern function debug_lockdep_rcu_enabled [2022-12-14 12:10:04,495 WARN L623 FunctionHandler]: Unknown extern function lockdep_rcu_suspicious [2022-12-14 12:10:04,495 WARN L623 FunctionHandler]: Unknown extern function debug_lockdep_rcu_enabled [2022-12-14 12:10:04,496 WARN L623 FunctionHandler]: Unknown extern function lockdep_rcu_suspicious [2022-12-14 12:10:04,496 WARN L623 FunctionHandler]: Unknown extern function sk_free [2022-12-14 12:10:04,497 WARN L623 FunctionHandler]: Unknown extern function __compiletime_assert_1712 [2022-12-14 12:10:04,497 WARN L623 FunctionHandler]: Unknown extern function debug_lockdep_rcu_enabled [2022-12-14 12:10:04,498 WARN L623 FunctionHandler]: Unknown extern function debug_lockdep_rcu_enabled [2022-12-14 12:10:04,498 WARN L623 FunctionHandler]: Unknown extern function debug_lockdep_rcu_enabled [2022-12-14 12:10:04,503 WARN L623 FunctionHandler]: Unknown extern function __compiletime_assert_240 [2022-12-14 12:10:04,503 WARN L623 FunctionHandler]: Unknown extern function kfree_call_rcu [2022-12-14 12:10:04,506 WARN L623 FunctionHandler]: Unknown extern function round_jiffies_up [2022-12-14 12:10:04,507 WARN L623 FunctionHandler]: Unknown extern function round_jiffies_up [2022-12-14 12:10:04,509 WARN L623 FunctionHandler]: Unknown extern function debug_lockdep_rcu_enabled [2022-12-14 12:10:04,510 WARN L623 FunctionHandler]: Unknown extern function in_egroup_p [2022-12-14 12:10:04,510 WARN L623 FunctionHandler]: Unknown extern function ns_capable [2022-12-14 12:10:04,510 WARN L623 FunctionHandler]: Unknown extern function netif_set_real_num_tx_queues [2022-12-14 12:10:04,511 WARN L623 FunctionHandler]: Unknown extern function netif_set_real_num_rx_queues [2022-12-14 12:10:04,520 WARN L623 FunctionHandler]: Unknown extern function skb_queue_purge [2022-12-14 12:10:04,520 WARN L623 FunctionHandler]: Unknown extern function skb_queue_purge [2022-12-14 12:10:04,520 WARN L623 FunctionHandler]: Unknown extern function debug_lockdep_rcu_enabled [2022-12-14 12:10:04,520 WARN L623 FunctionHandler]: Unknown extern function lockdep_rtnl_is_held [2022-12-14 12:10:04,521 WARN L623 FunctionHandler]: Unknown extern function lockdep_rcu_suspicious [2022-12-14 12:10:04,524 WARN L623 FunctionHandler]: Unknown extern function debug_lockdep_rcu_enabled [2022-12-14 12:10:04,524 WARN L623 FunctionHandler]: Unknown extern function lockdep_rtnl_is_held [2022-12-14 12:10:04,524 WARN L623 FunctionHandler]: Unknown extern function lockdep_rcu_suspicious [2022-12-14 12:10:04,541 WARN L623 FunctionHandler]: Unknown extern function synchronize_net [2022-12-14 12:10:04,542 WARN L623 FunctionHandler]: Unknown extern function netif_carrier_off [2022-12-14 12:10:04,543 WARN L623 FunctionHandler]: Unknown extern function sk_release_kernel [2022-12-14 12:10:04,543 WARN L623 FunctionHandler]: Unknown extern function rtnl_lock [2022-12-14 12:10:04,543 WARN L623 FunctionHandler]: Unknown extern function rtnl_unlock [2022-12-14 12:10:04,544 WARN L623 FunctionHandler]: Unknown extern function debug_lockdep_rcu_enabled [2022-12-14 12:10:04,544 WARN L623 FunctionHandler]: Unknown extern function lockdep_rtnl_is_held [2022-12-14 12:10:04,544 WARN L623 FunctionHandler]: Unknown extern function lockdep_rcu_suspicious [2022-12-14 12:10:04,544 WARN L623 FunctionHandler]: Unknown extern function __wake_up [2022-12-14 12:10:04,550 WARN L623 FunctionHandler]: Unknown extern function __wake_up [2022-12-14 12:10:04,555 WARN L623 FunctionHandler]: Unknown extern function synchronize_net [2022-12-14 12:10:04,555 WARN L623 FunctionHandler]: Unknown extern function debug_lockdep_rcu_enabled [2022-12-14 12:10:04,556 WARN L623 FunctionHandler]: Unknown extern function lockdep_rtnl_is_held [2022-12-14 12:10:04,556 WARN L623 FunctionHandler]: Unknown extern function lockdep_rcu_suspicious [2022-12-14 12:10:04,557 WARN L623 FunctionHandler]: Unknown extern function module_put [2022-12-14 12:10:04,557 WARN L623 FunctionHandler]: Unknown extern function security_tun_dev_attach [2022-12-14 12:10:04,560 WARN L623 FunctionHandler]: Unknown extern function debug_lockdep_rcu_enabled [2022-12-14 12:10:04,560 WARN L623 FunctionHandler]: Unknown extern function lockdep_rtnl_is_held [2022-12-14 12:10:04,560 WARN L623 FunctionHandler]: Unknown extern function lockdep_rcu_suspicious [2022-12-14 12:10:04,561 WARN L623 FunctionHandler]: Unknown extern function sk_attach_filter [2022-12-14 12:10:04,574 WARN L623 FunctionHandler]: Unknown extern function debug_lockdep_rcu_enabled [2022-12-14 12:10:04,574 WARN L623 FunctionHandler]: Unknown extern function lockdep_rcu_suspicious [2022-12-14 12:10:04,575 WARN L623 FunctionHandler]: Unknown extern function crc32_le [2022-12-14 12:10:04,575 WARN L623 FunctionHandler]: Unknown extern function bitrev32 [2022-12-14 12:10:04,576 WARN L623 FunctionHandler]: Unknown extern function crc32_le [2022-12-14 12:10:04,576 WARN L623 FunctionHandler]: Unknown extern function bitrev32 [2022-12-14 12:10:04,578 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 12:10:04,580 WARN L623 FunctionHandler]: Unknown extern function debug_lockdep_rcu_enabled [2022-12-14 12:10:04,580 WARN L623 FunctionHandler]: Unknown extern function lockdep_rcu_suspicious [2022-12-14 12:10:04,581 WARN L623 FunctionHandler]: Unknown extern function sk_filter [2022-12-14 12:10:04,584 WARN L623 FunctionHandler]: Unknown extern function sock_tx_timestamp [2022-12-14 12:10:04,587 WARN L623 FunctionHandler]: Unknown extern function skb_queue_tail [2022-12-14 12:10:04,587 WARN L623 FunctionHandler]: Unknown extern function kill_fasync [2022-12-14 12:10:04,587 WARN L623 FunctionHandler]: Unknown extern function __wake_up [2022-12-14 12:10:04,588 WARN L623 FunctionHandler]: Unknown extern function skb_tx_error [2022-12-14 12:10:04,588 WARN L623 FunctionHandler]: Unknown extern function kfree_skb [2022-12-14 12:10:04,589 WARN L623 FunctionHandler]: Unknown extern function init_timer_key [2022-12-14 12:10:04,590 WARN L623 FunctionHandler]: Unknown extern function round_jiffies_up [2022-12-14 12:10:04,590 WARN L623 FunctionHandler]: Unknown extern function ether_setup [2022-12-14 12:10:04,597 WARN L623 FunctionHandler]: Unknown extern function sock_alloc_send_pskb [2022-12-14 12:10:04,597 WARN L623 FunctionHandler]: Unknown extern function skb_put [2022-12-14 12:10:04,598 WARN L623 FunctionHandler]: Unknown extern function memcpy_fromiovecend [2022-12-14 12:10:04,599 WARN L623 FunctionHandler]: Unknown extern function memcpy_fromiovecend [2022-12-14 12:10:04,600 WARN L623 FunctionHandler]: Unknown extern function iov_pages [2022-12-14 12:10:04,601 WARN L623 FunctionHandler]: Unknown extern function zerocopy_sg_from_iovec [2022-12-14 12:10:04,601 WARN L623 FunctionHandler]: Unknown extern function skb_copy_datagram_from_iovec [2022-12-14 12:10:04,602 WARN L623 FunctionHandler]: Unknown extern function kfree_skb [2022-12-14 12:10:04,602 WARN L623 FunctionHandler]: Unknown extern function skb_partial_csum_set [2022-12-14 12:10:04,602 WARN L623 FunctionHandler]: Unknown extern function kfree_skb [2022-12-14 12:10:04,603 WARN L623 FunctionHandler]: Unknown extern function kfree_skb [2022-12-14 12:10:04,613 WARN L623 FunctionHandler]: Unknown extern function eth_type_trans [2022-12-14 12:10:04,615 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-12-14 12:10:04,616 WARN L623 FunctionHandler]: Unknown extern function kfree_skb [2022-12-14 12:10:04,617 WARN L623 FunctionHandler]: Unknown extern function kfree_skb [2022-12-14 12:10:04,618 WARN L623 FunctionHandler]: Unknown extern function netif_rx_ni [2022-12-14 12:10:04,620 WARN L623 FunctionHandler]: Unknown extern function memcpy_toiovecend [2022-12-14 12:10:04,622 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 12:10:04,622 WARN L623 FunctionHandler]: Unknown extern function print_hex_dump [2022-12-14 12:10:04,623 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-12-14 12:10:04,624 WARN L623 FunctionHandler]: Unknown extern function memcpy_toiovecend [2022-12-14 12:10:04,626 WARN L623 FunctionHandler]: Unknown extern function skb_copy_datagram_const_iovec [2022-12-14 12:10:04,626 WARN L623 FunctionHandler]: Unknown extern function memcpy_toiovecend [2022-12-14 12:10:04,626 WARN L623 FunctionHandler]: Unknown extern function skb_copy_datagram_const_iovec [2022-12-14 12:10:04,628 WARN L623 FunctionHandler]: Unknown extern function add_wait_queue [2022-12-14 12:10:04,628 WARN L623 FunctionHandler]: Unknown extern function skb_dequeue [2022-12-14 12:10:04,629 WARN L623 FunctionHandler]: Unknown extern function schedule [2022-12-14 12:10:04,629 WARN L623 FunctionHandler]: Unknown extern function kfree_skb [2022-12-14 12:10:04,630 WARN L623 FunctionHandler]: Unknown extern function remove_wait_queue [2022-12-14 12:10:04,631 WARN L623 FunctionHandler]: Unknown extern function security_tun_dev_free_security [2022-12-14 12:10:04,636 WARN L623 FunctionHandler]: Unknown extern function __wake_up_sync_key [2022-12-14 12:10:04,636 WARN L623 FunctionHandler]: Unknown extern function kill_fasync [2022-12-14 12:10:04,638 WARN L623 FunctionHandler]: Unknown extern function sock_recv_errqueue [2022-12-14 12:10:04,649 WARN L623 FunctionHandler]: Unknown extern function sprintf [2022-12-14 12:10:04,650 WARN L623 FunctionHandler]: Unknown extern function debug_lockdep_rcu_enabled [2022-12-14 12:10:04,650 WARN L623 FunctionHandler]: Unknown extern function from_kuid_munged [2022-12-14 12:10:04,650 WARN L623 FunctionHandler]: Unknown extern function sprintf [2022-12-14 12:10:04,650 WARN L623 FunctionHandler]: Unknown extern function sprintf [2022-12-14 12:10:04,651 WARN L623 FunctionHandler]: Unknown extern function debug_lockdep_rcu_enabled [2022-12-14 12:10:04,652 WARN L623 FunctionHandler]: Unknown extern function from_kgid_munged [2022-12-14 12:10:04,652 WARN L623 FunctionHandler]: Unknown extern function sprintf [2022-12-14 12:10:04,652 WARN L623 FunctionHandler]: Unknown extern function sprintf [2022-12-14 12:10:04,654 WARN L623 FunctionHandler]: Unknown extern function __dev_get_by_name [2022-12-14 12:10:04,656 WARN L623 FunctionHandler]: Unknown extern function security_tun_dev_open [2022-12-14 12:10:04,657 WARN L623 FunctionHandler]: Unknown extern function ns_capable [2022-12-14 12:10:04,658 WARN L623 FunctionHandler]: Unknown extern function security_tun_dev_create [2022-12-14 12:10:04,663 WARN L623 FunctionHandler]: Unknown extern function __raw_spin_lock_init [2022-12-14 12:10:04,663 WARN L623 FunctionHandler]: Unknown extern function security_tun_dev_alloc_security [2022-12-14 12:10:04,664 WARN L623 FunctionHandler]: Unknown extern function device_create_file [2022-12-14 12:10:04,664 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 12:10:04,664 WARN L623 FunctionHandler]: Unknown extern function device_create_file [2022-12-14 12:10:04,664 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 12:10:04,665 WARN L623 FunctionHandler]: Unknown extern function device_create_file [2022-12-14 12:10:04,665 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 12:10:04,665 WARN L623 FunctionHandler]: Unknown extern function netif_carrier_on [2022-12-14 12:10:04,667 WARN L623 FunctionHandler]: Unknown extern function security_tun_dev_free_security [2022-12-14 12:10:04,669 WARN L623 FunctionHandler]: Unknown extern function netdev_update_features [2022-12-14 12:10:04,670 WARN L623 FunctionHandler]: Unknown extern function debug_lockdep_rcu_enabled [2022-12-14 12:10:04,670 WARN L623 FunctionHandler]: Unknown extern function lockdep_rtnl_is_held [2022-12-14 12:10:04,670 WARN L623 FunctionHandler]: Unknown extern function lockdep_rcu_suspicious [2022-12-14 12:10:04,671 WARN L623 FunctionHandler]: Unknown extern function sk_detach_filter [2022-12-14 12:10:04,675 WARN L623 FunctionHandler]: Unknown extern function debug_lockdep_rcu_enabled [2022-12-14 12:10:04,675 WARN L623 FunctionHandler]: Unknown extern function lockdep_rtnl_is_held [2022-12-14 12:10:04,675 WARN L623 FunctionHandler]: Unknown extern function lockdep_rcu_suspicious [2022-12-14 12:10:04,676 WARN L623 FunctionHandler]: Unknown extern function sk_attach_filter [2022-12-14 12:10:04,680 WARN L623 FunctionHandler]: Unknown extern function debug_lockdep_rcu_enabled [2022-12-14 12:10:04,681 WARN L623 FunctionHandler]: Unknown extern function lockdep_rtnl_is_held [2022-12-14 12:10:04,681 WARN L623 FunctionHandler]: Unknown extern function lockdep_rcu_suspicious [2022-12-14 12:10:04,682 WARN L623 FunctionHandler]: Unknown extern function rtnl_lock [2022-12-14 12:10:04,686 WARN L623 FunctionHandler]: Unknown extern function security_tun_dev_attach_queue [2022-12-14 12:10:04,686 WARN L623 FunctionHandler]: Unknown extern function debug_lockdep_rcu_enabled [2022-12-14 12:10:04,686 WARN L623 FunctionHandler]: Unknown extern function lockdep_rtnl_is_held [2022-12-14 12:10:04,687 WARN L623 FunctionHandler]: Unknown extern function lockdep_rcu_suspicious [2022-12-14 12:10:04,691 WARN L623 FunctionHandler]: Unknown extern function rtnl_unlock [2022-12-14 12:10:04,692 WARN L623 FunctionHandler]: Unknown extern function might_fault [2022-12-14 12:10:04,692 WARN L623 FunctionHandler]: Unknown extern function rtnl_lock [2022-12-14 12:10:04,695 WARN L623 FunctionHandler]: Unknown extern function __module_get [2022-12-14 12:10:04,696 WARN L623 FunctionHandler]: Unknown extern function module_put [2022-12-14 12:10:04,696 WARN L623 FunctionHandler]: Unknown extern function debug_lockdep_rcu_enabled [2022-12-14 12:10:04,696 WARN L623 FunctionHandler]: Unknown extern function make_kuid [2022-12-14 12:10:04,696 WARN L623 FunctionHandler]: Unknown extern function debug_lockdep_rcu_enabled [2022-12-14 12:10:04,696 WARN L623 FunctionHandler]: Unknown extern function make_kgid [2022-12-14 12:10:04,697 WARN L623 FunctionHandler]: Unknown extern function dev_set_mac_address [2022-12-14 12:10:04,699 WARN L623 FunctionHandler]: Unknown extern function rtnl_unlock [2022-12-14 12:10:04,700 WARN L623 FunctionHandler]: Unknown extern function fasync_helper [2022-12-14 12:10:04,700 WARN L623 FunctionHandler]: Unknown extern function __f_setown [2022-12-14 12:10:04,701 WARN L623 FunctionHandler]: Unknown extern function sk_alloc [2022-12-14 12:10:04,707 WARN L623 FunctionHandler]: Unknown extern function __init_waitqueue_head [2022-12-14 12:10:04,708 WARN L623 FunctionHandler]: Unknown extern function sock_init_data [2022-12-14 12:10:04,712 WARN L623 FunctionHandler]: Unknown extern function rtnl_lock [2022-12-14 12:10:04,713 WARN L623 FunctionHandler]: Unknown extern function rtnl_unlock [2022-12-14 12:10:04,713 WARN L623 FunctionHandler]: Unknown extern function seq_printf [2022-12-14 12:10:04,714 WARN L623 FunctionHandler]: Unknown extern function strlcpy [2022-12-14 12:10:04,714 WARN L623 FunctionHandler]: Unknown extern function strlcpy [2022-12-14 12:10:04,715 WARN L623 FunctionHandler]: Unknown extern function strlcpy [2022-12-14 12:10:04,715 WARN L623 FunctionHandler]: Unknown extern function strlcpy [2022-12-14 12:10:04,716 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 12:10:04,716 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 12:10:04,716 WARN L623 FunctionHandler]: Unknown extern function rtnl_link_register [2022-12-14 12:10:04,716 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 12:10:04,717 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 12:10:04,717 WARN L623 FunctionHandler]: Unknown extern function rtnl_link_unregister [2022-12-14 12:10:04,717 WARN L623 FunctionHandler]: Unknown extern function rtnl_link_unregister [2022-12-14 12:10:04,722 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 12:10:04,722 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 12:10:04,722 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 12:10:04,722 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 12:10:04,722 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 12:10:04,722 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 12:10:04,723 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 12:10:04,723 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 12:10:04,723 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 12:10:04,723 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 12:10:04,723 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 12:10:04,723 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 12:10:04,723 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 12:10:04,723 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 12:10:04,723 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 12:10:04,724 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 12:10:04,724 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 12:10:04,724 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 12:10:04,724 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 12:10:04,724 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 12:10:04,724 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 12:10:04,724 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 12:10:04,724 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 12:10:04,724 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 12:10:04,725 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 12:10:04,725 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 12:10:04,725 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 12:10:04,726 WARN L623 FunctionHandler]: Unknown extern function ethtool_op_get_ts_info [2022-12-14 12:10:04,726 WARN L623 FunctionHandler]: Unknown extern function eth_mac_addr [2022-12-14 12:10:04,727 WARN L623 FunctionHandler]: Unknown extern function eth_validate_addr [2022-12-14 12:10:04,727 WARN L623 FunctionHandler]: Unknown extern function ethtool_op_get_link [2022-12-14 12:10:04,728 WARN L623 FunctionHandler]: Unknown extern function ldv_initialize [2022-12-14 12:10:04,739 WARN L623 FunctionHandler]: Unknown extern function no_llseek [2022-12-14 12:10:04,739 WARN L623 FunctionHandler]: Unknown extern function do_sync_read [2022-12-14 12:10:04,740 WARN L623 FunctionHandler]: Unknown extern function do_sync_write [2022-12-14 12:10:04,753 WARN L623 FunctionHandler]: Unknown extern function ldv_switch_to_interrupt_context [2022-12-14 12:10:04,754 WARN L623 FunctionHandler]: Unknown extern function ldv_switch_to_process_context [2022-12-14 12:10:04,755 WARN L623 FunctionHandler]: Unknown extern function mod_timer [2022-12-14 12:10:04,755 WARN L623 FunctionHandler]: Unknown extern function mod_timer [2022-12-14 12:10:04,756 WARN L623 FunctionHandler]: Unknown extern function mod_timer [2022-12-14 12:10:04,756 WARN L623 FunctionHandler]: Unknown extern function del_timer_sync [2022-12-14 12:10:04,756 WARN L623 FunctionHandler]: Unknown extern function free_netdev [2022-12-14 12:10:04,757 WARN L623 FunctionHandler]: Unknown extern function alloc_netdev_mqs [2022-12-14 12:10:04,757 WARN L623 FunctionHandler]: Unknown extern function register_netdevice [2022-12-14 12:10:04,757 WARN L623 FunctionHandler]: Unknown extern function free_netdev [2022-12-14 12:10:04,758 WARN L623 FunctionHandler]: Unknown extern function misc_register [2022-12-14 12:10:04,758 WARN L623 FunctionHandler]: Unknown extern function misc_deregister [2022-12-14 12:10:04,760 WARN L623 FunctionHandler]: Unknown extern function ldv_check_alloc_flags [2022-12-14 12:10:04,761 WARN L623 FunctionHandler]: Unknown extern function ldv_after_alloc [2022-12-14 12:10:04,761 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 12:10:04,782 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_eee09803-36c7-442d-be5a-d68d648daca2/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-tun.cil.i[428896,428909] [2022-12-14 12:10:04,782 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_eee09803-36c7-442d-be5a-d68d648daca2/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-tun.cil.i[429065,429078] [2022-12-14 12:10:04,783 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_eee09803-36c7-442d-be5a-d68d648daca2/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-tun.cil.i[429232,429245] [2022-12-14 12:10:04,783 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_eee09803-36c7-442d-be5a-d68d648daca2/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-tun.cil.i[429400,429413] [2022-12-14 12:10:04,783 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 12:10:04,784 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 12:10:04,789 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 12:10:04,789 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 12:10:04,790 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 12:10:04,791 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 12:10:05,049 INFO L208 MainTranslator]: Completed translation [2022-12-14 12:10:05,050 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:10:05 WrapperNode [2022-12-14 12:10:05,050 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 12:10:05,051 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 12:10:05,051 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 12:10:05,051 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 12:10:05,058 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:10:05" (1/1) ... [2022-12-14 12:10:05,123 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:10:05" (1/1) ... [2022-12-14 12:10:05,270 INFO L138 Inliner]: procedures = 614, calls = 2621, calls flagged for inlining = 322, calls inlined = 255, statements flattened = 7227 [2022-12-14 12:10:05,270 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 12:10:05,271 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 12:10:05,271 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 12:10:05,271 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 12:10:05,281 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:10:05" (1/1) ... [2022-12-14 12:10:05,281 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:10:05" (1/1) ... [2022-12-14 12:10:05,302 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:10:05" (1/1) ... [2022-12-14 12:10:05,302 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:10:05" (1/1) ... [2022-12-14 12:10:05,428 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:10:05" (1/1) ... [2022-12-14 12:10:05,448 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:10:05" (1/1) ... [2022-12-14 12:10:05,503 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:10:05" (1/1) ... [2022-12-14 12:10:05,516 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:10:05" (1/1) ... [2022-12-14 12:10:05,546 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 12:10:05,547 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 12:10:05,547 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 12:10:05,547 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 12:10:05,547 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:10:05" (1/1) ... [2022-12-14 12:10:05,552 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 12:10:05,559 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eee09803-36c7-442d-be5a-d68d648daca2/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 12:10:05,571 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eee09803-36c7-442d-be5a-d68d648daca2/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 12:10:05,573 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eee09803-36c7-442d-be5a-d68d648daca2/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 12:10:05,603 INFO L130 BoogieDeclarations]: Found specification of procedure tun_get [2022-12-14 12:10:05,603 INFO L138 BoogieDeclarations]: Found implementation of procedure tun_get [2022-12-14 12:10:05,603 INFO L130 BoogieDeclarations]: Found specification of procedure debug_lockdep_rcu_enabled [2022-12-14 12:10:05,603 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_lockdep_rcu_enabled [2022-12-14 12:10:05,603 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-12-14 12:10:05,603 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-12-14 12:10:05,603 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-12-14 12:10:05,603 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-12-14 12:10:05,603 INFO L130 BoogieDeclarations]: Found specification of procedure skb_get_hash [2022-12-14 12:10:05,603 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_get_hash [2022-12-14 12:10:05,603 INFO L130 BoogieDeclarations]: Found specification of procedure tun_attach [2022-12-14 12:10:05,603 INFO L138 BoogieDeclarations]: Found implementation of procedure tun_attach [2022-12-14 12:10:05,603 INFO L130 BoogieDeclarations]: Found specification of procedure ns_capable [2022-12-14 12:10:05,603 INFO L138 BoogieDeclarations]: Found implementation of procedure ns_capable [2022-12-14 12:10:05,603 INFO L130 BoogieDeclarations]: Found specification of procedure crc32_le [2022-12-14 12:10:05,603 INFO L138 BoogieDeclarations]: Found implementation of procedure crc32_le [2022-12-14 12:10:05,603 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-12-14 12:10:05,604 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-12-14 12:10:05,604 INFO L130 BoogieDeclarations]: Found specification of procedure gid_valid [2022-12-14 12:10:05,604 INFO L138 BoogieDeclarations]: Found implementation of procedure gid_valid [2022-12-14 12:10:05,604 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec_and_test [2022-12-14 12:10:05,604 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec_and_test [2022-12-14 12:10:05,604 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2022-12-14 12:10:05,604 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2022-12-14 12:10:05,604 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-12-14 12:10:05,604 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-12-14 12:10:05,604 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-14 12:10:05,604 INFO L130 BoogieDeclarations]: Found specification of procedure sock_writeable [2022-12-14 12:10:05,604 INFO L138 BoogieDeclarations]: Found implementation of procedure sock_writeable [2022-12-14 12:10:05,604 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-12-14 12:10:05,604 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-12-14 12:10:05,604 INFO L130 BoogieDeclarations]: Found specification of procedure iov_length [2022-12-14 12:10:05,604 INFO L138 BoogieDeclarations]: Found implementation of procedure iov_length [2022-12-14 12:10:05,604 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-12-14 12:10:05,604 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-12-14 12:10:05,604 INFO L130 BoogieDeclarations]: Found specification of procedure sock_put [2022-12-14 12:10:05,604 INFO L138 BoogieDeclarations]: Found implementation of procedure sock_put [2022-12-14 12:10:05,604 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-12-14 12:10:05,604 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2022-12-14 12:10:05,604 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2022-12-14 12:10:05,605 INFO L130 BoogieDeclarations]: Found specification of procedure tun_get_iff [2022-12-14 12:10:05,605 INFO L138 BoogieDeclarations]: Found implementation of procedure tun_get_iff [2022-12-14 12:10:05,605 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-12-14 12:10:05,605 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_bh_76 [2022-12-14 12:10:05,605 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_bh_76 [2022-12-14 12:10:05,605 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-12-14 12:10:05,605 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-12-14 12:10:05,605 INFO L130 BoogieDeclarations]: Found specification of procedure __tun_detach [2022-12-14 12:10:05,605 INFO L138 BoogieDeclarations]: Found implementation of procedure __tun_detach [2022-12-14 12:10:05,605 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-14 12:10:05,605 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-12-14 12:10:05,605 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-12-14 12:10:05,605 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_tun_cleanup_15_2 [2022-12-14 12:10:05,605 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_tun_cleanup_15_2 [2022-12-14 12:10:05,605 INFO L130 BoogieDeclarations]: Found specification of procedure tun_detach_all [2022-12-14 12:10:05,605 INFO L138 BoogieDeclarations]: Found implementation of procedure tun_detach_all [2022-12-14 12:10:05,605 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_is_watching [2022-12-14 12:10:05,605 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_is_watching [2022-12-14 12:10:05,605 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_purge [2022-12-14 12:10:05,605 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_purge [2022-12-14 12:10:05,605 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2022-12-14 12:10:05,605 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2022-12-14 12:10:05,605 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_lock [2022-12-14 12:10:05,605 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_lock [2022-12-14 12:10:05,606 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2022-12-14 12:10:05,606 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2022-12-14 12:10:05,606 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-12-14 12:10:05,606 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2022-12-14 12:10:05,606 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2022-12-14 12:10:05,606 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_2 [2022-12-14 12:10:05,606 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_2 [2022-12-14 12:10:05,606 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer [2022-12-14 12:10:05,606 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer [2022-12-14 12:10:05,606 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 12:10:05,606 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-12-14 12:10:05,606 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-12-14 12:10:05,606 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-12-14 12:10:05,606 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-12-14 12:10:05,606 INFO L130 BoogieDeclarations]: Found specification of procedure read_pnet [2022-12-14 12:10:05,606 INFO L138 BoogieDeclarations]: Found implementation of procedure read_pnet [2022-12-14 12:10:05,606 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_to_user [2022-12-14 12:10:05,606 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_to_user [2022-12-14 12:10:05,606 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2022-12-14 12:10:05,606 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2022-12-14 12:10:05,606 INFO L130 BoogieDeclarations]: Found specification of procedure tun_setup [2022-12-14 12:10:05,606 INFO L138 BoogieDeclarations]: Found implementation of procedure tun_setup [2022-12-14 12:10:05,606 INFO L130 BoogieDeclarations]: Found specification of procedure skb_set_transport_header [2022-12-14 12:10:05,606 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_set_transport_header [2022-12-14 12:10:05,607 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-12-14 12:10:05,607 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-12-14 12:10:05,607 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2022-12-14 12:10:05,607 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2022-12-14 12:10:05,607 INFO L130 BoogieDeclarations]: Found specification of procedure tun_flow_find [2022-12-14 12:10:05,607 INFO L138 BoogieDeclarations]: Found implementation of procedure tun_flow_find [2022-12-14 12:10:05,607 INFO L130 BoogieDeclarations]: Found specification of procedure tun_flow_uninit [2022-12-14 12:10:05,607 INFO L138 BoogieDeclarations]: Found implementation of procedure tun_flow_uninit [2022-12-14 12:10:05,607 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2022-12-14 12:10:05,607 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2022-12-14 12:10:05,607 INFO L130 BoogieDeclarations]: Found specification of procedure synchronize_net [2022-12-14 12:10:05,607 INFO L138 BoogieDeclarations]: Found implementation of procedure synchronize_net [2022-12-14 12:10:05,607 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 12:10:05,607 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 12:10:05,607 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_toiovecend [2022-12-14 12:10:05,607 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_toiovecend [2022-12-14 12:10:05,607 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy [2022-12-14 12:10:05,607 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy [2022-12-14 12:10:05,607 INFO L130 BoogieDeclarations]: Found specification of procedure tun_flags [2022-12-14 12:10:05,607 INFO L138 BoogieDeclarations]: Found implementation of procedure tun_flags [2022-12-14 12:10:05,607 INFO L130 BoogieDeclarations]: Found specification of procedure __kuid_val [2022-12-14 12:10:05,607 INFO L138 BoogieDeclarations]: Found implementation of procedure __kuid_val [2022-12-14 12:10:05,607 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-12-14 12:10:05,607 INFO L130 BoogieDeclarations]: Found specification of procedure uid_valid [2022-12-14 12:10:05,608 INFO L138 BoogieDeclarations]: Found implementation of procedure uid_valid [2022-12-14 12:10:05,608 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-12-14 12:10:05,608 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-12-14 12:10:05,608 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-12-14 12:10:05,608 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-12-14 12:10:05,608 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-12-14 12:10:05,608 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2022-12-14 12:10:05,608 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2022-12-14 12:10:05,608 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_size_call_parameter [2022-12-14 12:10:05,608 INFO L130 BoogieDeclarations]: Found specification of procedure rtnl_unlock [2022-12-14 12:10:05,608 INFO L138 BoogieDeclarations]: Found implementation of procedure rtnl_unlock [2022-12-14 12:10:05,608 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_rtnl_is_held [2022-12-14 12:10:05,608 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_rtnl_is_held [2022-12-14 12:10:05,608 INFO L130 BoogieDeclarations]: Found specification of procedure device_create_file [2022-12-14 12:10:05,608 INFO L138 BoogieDeclarations]: Found implementation of procedure device_create_file [2022-12-14 12:10:05,608 INFO L130 BoogieDeclarations]: Found specification of procedure bitrev32 [2022-12-14 12:10:05,608 INFO L138 BoogieDeclarations]: Found implementation of procedure bitrev32 [2022-12-14 12:10:05,608 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-12-14 12:10:05,608 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-12-14 12:10:05,608 INFO L130 BoogieDeclarations]: Found specification of procedure __tun_get [2022-12-14 12:10:05,608 INFO L138 BoogieDeclarations]: Found implementation of procedure __tun_get [2022-12-14 12:10:05,609 INFO L130 BoogieDeclarations]: Found specification of procedure ERR_PTR [2022-12-14 12:10:05,609 INFO L138 BoogieDeclarations]: Found implementation of procedure ERR_PTR [2022-12-14 12:10:05,609 INFO L130 BoogieDeclarations]: Found specification of procedure sk_attach_filter [2022-12-14 12:10:05,609 INFO L138 BoogieDeclarations]: Found implementation of procedure sk_attach_filter [2022-12-14 12:10:05,609 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-14 12:10:05,609 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-12-14 12:10:05,609 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-12-14 12:10:05,609 INFO L130 BoogieDeclarations]: Found specification of procedure module_put [2022-12-14 12:10:05,609 INFO L138 BoogieDeclarations]: Found implementation of procedure module_put [2022-12-14 12:10:05,609 INFO L130 BoogieDeclarations]: Found specification of procedure put_net [2022-12-14 12:10:05,609 INFO L138 BoogieDeclarations]: Found implementation of procedure put_net [2022-12-14 12:10:05,609 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-12-14 12:10:05,609 INFO L130 BoogieDeclarations]: Found specification of procedure skb_copy_datagram_const_iovec [2022-12-14 12:10:05,609 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_copy_datagram_const_iovec [2022-12-14 12:10:05,609 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-12-14 12:10:05,609 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2022-12-14 12:10:05,609 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2022-12-14 12:10:05,609 INFO L130 BoogieDeclarations]: Found specification of procedure tun_get_user [2022-12-14 12:10:05,609 INFO L138 BoogieDeclarations]: Found implementation of procedure tun_get_user [2022-12-14 12:10:05,609 INFO L130 BoogieDeclarations]: Found specification of procedure kfree_skb [2022-12-14 12:10:05,609 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree_skb [2022-12-14 12:10:05,609 INFO L130 BoogieDeclarations]: Found specification of procedure __tun_chr_ioctl [2022-12-14 12:10:05,609 INFO L138 BoogieDeclarations]: Found implementation of procedure __tun_chr_ioctl [2022-12-14 12:10:05,609 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-12-14 12:10:05,610 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-12-14 12:10:05,610 INFO L130 BoogieDeclarations]: Found specification of procedure tun_flow_delete [2022-12-14 12:10:05,610 INFO L138 BoogieDeclarations]: Found implementation of procedure tun_flow_delete [2022-12-14 12:10:05,610 INFO L130 BoogieDeclarations]: Found specification of procedure sock_rps_reset_flow_hash [2022-12-14 12:10:05,610 INFO L138 BoogieDeclarations]: Found implementation of procedure sock_rps_reset_flow_hash [2022-12-14 12:10:05,610 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-12-14 12:10:05,610 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-12-14 12:10:05,610 INFO L130 BoogieDeclarations]: Found specification of procedure tun_queue_purge [2022-12-14 12:10:05,610 INFO L138 BoogieDeclarations]: Found implementation of procedure tun_queue_purge [2022-12-14 12:10:05,610 INFO L130 BoogieDeclarations]: Found specification of procedure tun_hashfn [2022-12-14 12:10:05,610 INFO L138 BoogieDeclarations]: Found implementation of procedure tun_hashfn [2022-12-14 12:10:05,610 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2022-12-14 12:10:05,610 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2022-12-14 12:10:05,610 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-12-14 12:10:05,610 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-12-14 12:10:05,610 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-12-14 12:10:05,610 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-12-14 12:10:05,610 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_lock_held [2022-12-14 12:10:05,610 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_lock_held [2022-12-14 12:10:05,610 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_bh_75 [2022-12-14 12:10:05,610 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_bh_75 [2022-12-14 12:10:05,610 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-12-14 12:10:05,610 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-12-14 12:10:05,610 INFO L130 BoogieDeclarations]: Found specification of procedure tun_enable_queue [2022-12-14 12:10:05,611 INFO L138 BoogieDeclarations]: Found implementation of procedure tun_enable_queue [2022-12-14 12:10:05,611 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-14 12:10:05,611 INFO L130 BoogieDeclarations]: Found specification of procedure security_tun_dev_free_security [2022-12-14 12:10:05,611 INFO L138 BoogieDeclarations]: Found implementation of procedure security_tun_dev_free_security [2022-12-14 12:10:05,611 INFO L130 BoogieDeclarations]: Found specification of procedure hold_net [2022-12-14 12:10:05,611 INFO L138 BoogieDeclarations]: Found implementation of procedure hold_net [2022-12-14 12:10:05,611 INFO L130 BoogieDeclarations]: Found specification of procedure tun_set_real_num_queues [2022-12-14 12:10:05,611 INFO L138 BoogieDeclarations]: Found implementation of procedure tun_set_real_num_queues [2022-12-14 12:10:05,611 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-12-14 12:10:05,611 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-12-14 12:10:05,611 INFO L130 BoogieDeclarations]: Found specification of procedure uid_eq [2022-12-14 12:10:05,630 INFO L138 BoogieDeclarations]: Found implementation of procedure uid_eq [2022-12-14 12:10:05,630 INFO L130 BoogieDeclarations]: Found specification of procedure rtnl_link_unregister [2022-12-14 12:10:05,630 INFO L138 BoogieDeclarations]: Found implementation of procedure rtnl_link_unregister [2022-12-14 12:10:05,630 INFO L130 BoogieDeclarations]: Found specification of procedure tun_do_read [2022-12-14 12:10:05,630 INFO L138 BoogieDeclarations]: Found implementation of procedure tun_do_read [2022-12-14 12:10:05,630 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2022-12-14 12:10:05,630 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2022-12-14 12:10:05,630 INFO L130 BoogieDeclarations]: Found specification of procedure __kgid_val [2022-12-14 12:10:05,630 INFO L138 BoogieDeclarations]: Found implementation of procedure __kgid_val [2022-12-14 12:10:05,630 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2022-12-14 12:10:05,630 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2022-12-14 12:10:05,631 INFO L130 BoogieDeclarations]: Found specification of procedure is_multicast_ether_addr [2022-12-14 12:10:05,631 INFO L138 BoogieDeclarations]: Found implementation of procedure is_multicast_ether_addr [2022-12-14 12:10:05,631 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_inc [2022-12-14 12:10:05,631 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_inc [2022-12-14 12:10:05,631 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_rcu_suspicious [2022-12-14 12:10:05,631 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_rcu_suspicious [2022-12-14 12:10:05,631 INFO L130 BoogieDeclarations]: Found specification of procedure rtnl_lock [2022-12-14 12:10:05,631 INFO L138 BoogieDeclarations]: Found implementation of procedure rtnl_lock [2022-12-14 12:10:05,631 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2022-12-14 12:10:05,631 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2022-12-14 12:10:05,631 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2022-12-14 12:10:05,631 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2022-12-14 12:10:05,631 INFO L130 BoogieDeclarations]: Found specification of procedure tun_detach_filter [2022-12-14 12:10:05,631 INFO L138 BoogieDeclarations]: Found implementation of procedure tun_detach_filter [2022-12-14 12:10:05,632 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_fromiovecend [2022-12-14 12:10:05,632 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_fromiovecend [2022-12-14 12:10:05,632 INFO L130 BoogieDeclarations]: Found specification of procedure round_jiffies_up [2022-12-14 12:10:05,632 INFO L138 BoogieDeclarations]: Found implementation of procedure round_jiffies_up [2022-12-14 12:10:05,632 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-12-14 12:10:05,632 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-12-14 12:10:05,632 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_unlock [2022-12-14 12:10:05,632 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_unlock [2022-12-14 12:10:05,632 INFO L130 BoogieDeclarations]: Found specification of procedure tun_put [2022-12-14 12:10:05,632 INFO L138 BoogieDeclarations]: Found implementation of procedure tun_put [2022-12-14 12:10:05,632 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 12:10:05,632 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2022-12-14 12:10:05,632 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2022-12-14 12:10:06,296 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 12:10:06,299 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 12:10:06,670 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-12-14 12:10:09,952 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2022-12-14 12:10:10,004 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 12:10:11,468 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 12:10:11,468 INFO L300 CfgBuilder]: Removed 20 assume(true) statements. [2022-12-14 12:10:11,474 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 12:10:11 BoogieIcfgContainer [2022-12-14 12:10:11,474 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 12:10:11,475 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 12:10:11,475 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 12:10:11,478 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 12:10:11,478 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 12:10:01" (1/3) ... [2022-12-14 12:10:11,478 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e89a0f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 12:10:11, skipping insertion in model container [2022-12-14 12:10:11,478 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:10:05" (2/3) ... [2022-12-14 12:10:11,479 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e89a0f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 12:10:11, skipping insertion in model container [2022-12-14 12:10:11,479 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 12:10:11" (3/3) ... [2022-12-14 12:10:11,480 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-tun.cil.i [2022-12-14 12:10:11,494 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 12:10:11,494 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2022-12-14 12:10:11,562 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 12:10:11,566 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;@36154c8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 12:10:11,566 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-12-14 12:10:11,574 INFO L276 IsEmpty]: Start isEmpty. Operand has 1539 states, 950 states have (on average 1.3642105263157895) internal successors, (1296), 986 states have internal predecessors, (1296), 481 states have call successors, (481), 106 states have call predecessors, (481), 105 states have return successors, (474), 473 states have call predecessors, (474), 474 states have call successors, (474) [2022-12-14 12:10:11,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 292 [2022-12-14 12:10:11,593 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 12:10:11,593 INFO L195 NwaCegarLoop]: trace histogram [28, 27, 27, 27, 27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 12:10:11,594 INFO L420 AbstractCegarLoop]: === Iteration 1 === 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)] === [2022-12-14 12:10:11,597 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 12:10:11,598 INFO L85 PathProgramCache]: Analyzing trace with hash 1848464494, now seen corresponding path program 1 times [2022-12-14 12:10:11,605 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 12:10:11,605 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [114919602] [2022-12-14 12:10:11,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:10:11,605 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 12:10:11,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:10:12,304 INFO L134 CoverageAnalysis]: Checked inductivity of 2862 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2862 trivial. 0 not checked. [2022-12-14 12:10:12,305 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 12:10:12,305 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [114919602] [2022-12-14 12:10:12,306 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [114919602] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 12:10:12,306 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 12:10:12,306 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 12:10:12,307 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1537327295] [2022-12-14 12:10:12,308 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 12:10:12,313 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 12:10:12,313 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 12:10:12,336 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 12:10:12,336 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 12:10:12,340 INFO L87 Difference]: Start difference. First operand has 1539 states, 950 states have (on average 1.3642105263157895) internal successors, (1296), 986 states have internal predecessors, (1296), 481 states have call successors, (481), 106 states have call predecessors, (481), 105 states have return successors, (474), 473 states have call predecessors, (474), 474 states have call successors, (474) Second operand has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 3 states have call successors, (31), 2 states have call predecessors, (31), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2022-12-14 12:10:14,364 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 12:10:16,557 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 12:10:16,558 INFO L93 Difference]: Finished difference Result 4457 states and 6606 transitions. [2022-12-14 12:10:16,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 12:10:16,560 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 3 states have call successors, (31), 2 states have call predecessors, (31), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) Word has length 291 [2022-12-14 12:10:16,560 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 12:10:16,582 INFO L225 Difference]: With dead ends: 4457 [2022-12-14 12:10:16,582 INFO L226 Difference]: Without dead ends: 2957 [2022-12-14 12:10:16,592 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 12:10:16,594 INFO L413 NwaCegarLoop]: 2421 mSDtfsCounter, 2120 mSDsluCounter, 1881 mSDsCounter, 0 mSdLazyCounter, 709 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2120 SdHoareTripleChecker+Valid, 4302 SdHoareTripleChecker+Invalid, 711 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 709 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2022-12-14 12:10:16,595 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2120 Valid, 4302 Invalid, 711 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 709 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2022-12-14 12:10:16,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2957 states. [2022-12-14 12:10:16,752 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2957 to 2927. [2022-12-14 12:10:16,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2927 states, 1826 states have (on average 1.364184008762322) internal successors, (2491), 1901 states have internal predecessors, (2491), 893 states have call successors, (893), 207 states have call predecessors, (893), 205 states have return successors, (897), 881 states have call predecessors, (897), 889 states have call successors, (897) [2022-12-14 12:10:16,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2927 states to 2927 states and 4281 transitions. [2022-12-14 12:10:16,771 INFO L78 Accepts]: Start accepts. Automaton has 2927 states and 4281 transitions. Word has length 291 [2022-12-14 12:10:16,772 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 12:10:16,772 INFO L495 AbstractCegarLoop]: Abstraction has 2927 states and 4281 transitions. [2022-12-14 12:10:16,772 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 3 states have call successors, (31), 2 states have call predecessors, (31), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2022-12-14 12:10:16,773 INFO L276 IsEmpty]: Start isEmpty. Operand 2927 states and 4281 transitions. [2022-12-14 12:10:16,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 294 [2022-12-14 12:10:16,777 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 12:10:16,778 INFO L195 NwaCegarLoop]: trace histogram [28, 27, 27, 27, 27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 12:10:16,778 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 12:10:16,778 INFO L420 AbstractCegarLoop]: === Iteration 2 === 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)] === [2022-12-14 12:10:16,778 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 12:10:16,778 INFO L85 PathProgramCache]: Analyzing trace with hash 1762951309, now seen corresponding path program 1 times [2022-12-14 12:10:16,778 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 12:10:16,779 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [570128081] [2022-12-14 12:10:16,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:10:16,779 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 12:10:16,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:10:17,057 INFO L134 CoverageAnalysis]: Checked inductivity of 2862 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2862 trivial. 0 not checked. [2022-12-14 12:10:17,057 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 12:10:17,057 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [570128081] [2022-12-14 12:10:17,058 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [570128081] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 12:10:17,058 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 12:10:17,058 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 12:10:17,058 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [894342888] [2022-12-14 12:10:17,058 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 12:10:17,059 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 12:10:17,059 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 12:10:17,059 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 12:10:17,059 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 12:10:17,060 INFO L87 Difference]: Start difference. First operand 2927 states and 4281 transitions. Second operand has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 3 states have call successors, (32), 2 states have call predecessors, (32), 1 states have return successors, (30), 3 states have call predecessors, (30), 3 states have call successors, (30) [2022-12-14 12:10:21,242 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 12:10:22,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 12:10:22,427 INFO L93 Difference]: Finished difference Result 8559 states and 12508 transitions. [2022-12-14 12:10:22,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 12:10:22,428 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 3 states have call successors, (32), 2 states have call predecessors, (32), 1 states have return successors, (30), 3 states have call predecessors, (30), 3 states have call successors, (30) Word has length 293 [2022-12-14 12:10:22,429 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 12:10:22,452 INFO L225 Difference]: With dead ends: 8559 [2022-12-14 12:10:22,452 INFO L226 Difference]: Without dead ends: 5687 [2022-12-14 12:10:22,460 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 12:10:22,461 INFO L413 NwaCegarLoop]: 2282 mSDtfsCounter, 2048 mSDsluCounter, 1828 mSDsCounter, 0 mSdLazyCounter, 724 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2048 SdHoareTripleChecker+Valid, 4110 SdHoareTripleChecker+Invalid, 733 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 724 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2022-12-14 12:10:22,462 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2048 Valid, 4110 Invalid, 733 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 724 Invalid, 0 Unknown, 0 Unchecked, 5.1s Time] [2022-12-14 12:10:22,468 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5687 states. [2022-12-14 12:10:22,619 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5687 to 5683. [2022-12-14 12:10:22,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5683 states, 3574 states have (on average 1.3651371012870732) internal successors, (4879), 3714 states have internal predecessors, (4879), 1699 states have call successors, (1699), 410 states have call predecessors, (1699), 407 states have return successors, (1711), 1682 states have call predecessors, (1711), 1695 states have call successors, (1711) [2022-12-14 12:10:22,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5683 states to 5683 states and 8289 transitions. [2022-12-14 12:10:22,651 INFO L78 Accepts]: Start accepts. Automaton has 5683 states and 8289 transitions. Word has length 293 [2022-12-14 12:10:22,652 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 12:10:22,652 INFO L495 AbstractCegarLoop]: Abstraction has 5683 states and 8289 transitions. [2022-12-14 12:10:22,652 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 3 states have call successors, (32), 2 states have call predecessors, (32), 1 states have return successors, (30), 3 states have call predecessors, (30), 3 states have call successors, (30) [2022-12-14 12:10:22,652 INFO L276 IsEmpty]: Start isEmpty. Operand 5683 states and 8289 transitions. [2022-12-14 12:10:22,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 318 [2022-12-14 12:10:22,659 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 12:10:22,659 INFO L195 NwaCegarLoop]: trace histogram [28, 27, 27, 27, 27, 27, 27, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 12:10:22,659 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-14 12:10:22,660 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)] === [2022-12-14 12:10:22,660 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 12:10:22,660 INFO L85 PathProgramCache]: Analyzing trace with hash -540468387, now seen corresponding path program 1 times [2022-12-14 12:10:22,661 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 12:10:22,661 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1344800162] [2022-12-14 12:10:22,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:10:22,661 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 12:10:22,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:10:23,007 INFO L134 CoverageAnalysis]: Checked inductivity of 2864 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2864 trivial. 0 not checked. [2022-12-14 12:10:23,007 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 12:10:23,007 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1344800162] [2022-12-14 12:10:23,007 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1344800162] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 12:10:23,007 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 12:10:23,008 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 12:10:23,008 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2059487116] [2022-12-14 12:10:23,008 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 12:10:23,008 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 12:10:23,008 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 12:10:23,009 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 12:10:23,009 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 12:10:23,009 INFO L87 Difference]: Start difference. First operand 5683 states and 8289 transitions. Second operand has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 3 states have call successors, (38), 2 states have call predecessors, (38), 1 states have return successors, (35), 3 states have call predecessors, (35), 3 states have call successors, (35) [2022-12-14 12:10:25,388 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 12:10:27,098 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 12:10:27,098 INFO L93 Difference]: Finished difference Result 11199 states and 16271 transitions. [2022-12-14 12:10:27,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 12:10:27,098 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 3 states have call successors, (38), 2 states have call predecessors, (38), 1 states have return successors, (35), 3 states have call predecessors, (35), 3 states have call successors, (35) Word has length 317 [2022-12-14 12:10:27,099 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 12:10:27,138 INFO L225 Difference]: With dead ends: 11199 [2022-12-14 12:10:27,138 INFO L226 Difference]: Without dead ends: 5571 [2022-12-14 12:10:27,166 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 12:10:27,167 INFO L413 NwaCegarLoop]: 2115 mSDtfsCounter, 1025 mSDsluCounter, 1826 mSDsCounter, 0 mSdLazyCounter, 754 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1025 SdHoareTripleChecker+Valid, 3941 SdHoareTripleChecker+Invalid, 767 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 754 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2022-12-14 12:10:27,167 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1025 Valid, 3941 Invalid, 767 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 754 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2022-12-14 12:10:27,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5571 states. [2022-12-14 12:10:27,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5571 to 5541. [2022-12-14 12:10:27,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5541 states, 3516 states have (on average 1.3552332195676906) internal successors, (4765), 3643 states have internal predecessors, (4765), 1605 states have call successors, (1605), 421 states have call predecessors, (1605), 417 states have return successors, (1613), 1581 states have call predecessors, (1613), 1601 states have call successors, (1613) [2022-12-14 12:10:27,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5541 states to 5541 states and 7983 transitions. [2022-12-14 12:10:27,452 INFO L78 Accepts]: Start accepts. Automaton has 5541 states and 7983 transitions. Word has length 317 [2022-12-14 12:10:27,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 12:10:27,452 INFO L495 AbstractCegarLoop]: Abstraction has 5541 states and 7983 transitions. [2022-12-14 12:10:27,453 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 3 states have call successors, (38), 2 states have call predecessors, (38), 1 states have return successors, (35), 3 states have call predecessors, (35), 3 states have call successors, (35) [2022-12-14 12:10:27,453 INFO L276 IsEmpty]: Start isEmpty. Operand 5541 states and 7983 transitions. [2022-12-14 12:10:27,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 330 [2022-12-14 12:10:27,458 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 12:10:27,458 INFO L195 NwaCegarLoop]: trace histogram [30, 27, 27, 27, 27, 27, 27, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 12:10:27,458 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-14 12:10:27,459 INFO L420 AbstractCegarLoop]: === Iteration 4 === 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)] === [2022-12-14 12:10:27,459 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 12:10:27,459 INFO L85 PathProgramCache]: Analyzing trace with hash 1827086221, now seen corresponding path program 1 times [2022-12-14 12:10:27,459 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 12:10:27,459 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [350254395] [2022-12-14 12:10:27,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:10:27,460 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 12:10:27,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:10:28,005 INFO L134 CoverageAnalysis]: Checked inductivity of 2996 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2996 trivial. 0 not checked. [2022-12-14 12:10:28,005 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 12:10:28,006 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [350254395] [2022-12-14 12:10:28,006 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [350254395] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 12:10:28,006 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 12:10:28,006 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 12:10:28,006 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [38361939] [2022-12-14 12:10:28,006 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 12:10:28,007 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 12:10:28,007 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 12:10:28,007 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 12:10:28,008 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 12:10:28,008 INFO L87 Difference]: Start difference. First operand 5541 states and 7983 transitions. Second operand has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (36), 3 states have call predecessors, (36), 1 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) [2022-12-14 12:10:32,552 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.36s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 12:10:34,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 12:10:34,322 INFO L93 Difference]: Finished difference Result 5547 states and 7988 transitions. [2022-12-14 12:10:34,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 12:10:34,322 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (36), 3 states have call predecessors, (36), 1 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) Word has length 329 [2022-12-14 12:10:34,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 12:10:34,339 INFO L225 Difference]: With dead ends: 5547 [2022-12-14 12:10:34,340 INFO L226 Difference]: Without dead ends: 5545 [2022-12-14 12:10:34,342 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 [2022-12-14 12:10:34,342 INFO L413 NwaCegarLoop]: 1868 mSDtfsCounter, 2137 mSDsluCounter, 3720 mSDsCounter, 0 mSdLazyCounter, 1075 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2151 SdHoareTripleChecker+Valid, 5588 SdHoareTripleChecker+Invalid, 1076 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1075 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.1s IncrementalHoareTripleChecker+Time [2022-12-14 12:10:34,343 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2151 Valid, 5588 Invalid, 1076 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1075 Invalid, 0 Unknown, 0 Unchecked, 6.1s Time] [2022-12-14 12:10:34,351 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5545 states. [2022-12-14 12:10:34,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5545 to 5545. [2022-12-14 12:10:34,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5545 states, 3519 states have (on average 1.3549303779482809) internal successors, (4768), 3646 states have internal predecessors, (4768), 1605 states have call successors, (1605), 422 states have call predecessors, (1605), 418 states have return successors, (1613), 1581 states have call predecessors, (1613), 1601 states have call successors, (1613) [2022-12-14 12:10:34,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5545 states to 5545 states and 7986 transitions. [2022-12-14 12:10:34,538 INFO L78 Accepts]: Start accepts. Automaton has 5545 states and 7986 transitions. Word has length 329 [2022-12-14 12:10:34,538 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 12:10:34,538 INFO L495 AbstractCegarLoop]: Abstraction has 5545 states and 7986 transitions. [2022-12-14 12:10:34,539 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (36), 3 states have call predecessors, (36), 1 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) [2022-12-14 12:10:34,539 INFO L276 IsEmpty]: Start isEmpty. Operand 5545 states and 7986 transitions. [2022-12-14 12:10:34,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 335 [2022-12-14 12:10:34,543 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 12:10:34,543 INFO L195 NwaCegarLoop]: trace histogram [30, 27, 27, 27, 27, 27, 27, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 12:10:34,544 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-14 12:10:34,544 INFO L420 AbstractCegarLoop]: === Iteration 5 === 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)] === [2022-12-14 12:10:34,544 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 12:10:34,544 INFO L85 PathProgramCache]: Analyzing trace with hash -1871830661, now seen corresponding path program 1 times [2022-12-14 12:10:34,544 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 12:10:34,544 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1733755888] [2022-12-14 12:10:34,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:10:34,545 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 12:10:34,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:10:34,964 INFO L134 CoverageAnalysis]: Checked inductivity of 2998 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2996 trivial. 0 not checked. [2022-12-14 12:10:34,965 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 12:10:34,965 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1733755888] [2022-12-14 12:10:34,965 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1733755888] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 12:10:34,965 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 12:10:34,966 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 12:10:34,966 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1057537029] [2022-12-14 12:10:34,966 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 12:10:34,966 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 12:10:34,967 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 12:10:34,967 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 12:10:34,967 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 12:10:34,967 INFO L87 Difference]: Start difference. First operand 5545 states and 7986 transitions. Second operand has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 2 states have call successors, (37), 3 states have call predecessors, (37), 1 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) [2022-12-14 12:10:39,878 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 12:10:39,878 INFO L93 Difference]: Finished difference Result 5551 states and 7991 transitions. [2022-12-14 12:10:39,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 12:10:39,879 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 2 states have call successors, (37), 3 states have call predecessors, (37), 1 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) Word has length 334 [2022-12-14 12:10:39,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 12:10:39,911 INFO L225 Difference]: With dead ends: 5551 [2022-12-14 12:10:39,912 INFO L226 Difference]: Without dead ends: 5549 [2022-12-14 12:10:39,913 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 [2022-12-14 12:10:39,914 INFO L413 NwaCegarLoop]: 1871 mSDtfsCounter, 2132 mSDsluCounter, 3720 mSDsCounter, 0 mSdLazyCounter, 1075 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2145 SdHoareTripleChecker+Valid, 5591 SdHoareTripleChecker+Invalid, 1076 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1075 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2022-12-14 12:10:39,914 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2145 Valid, 5591 Invalid, 1076 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1075 Invalid, 0 Unknown, 0 Unchecked, 4.7s Time] [2022-12-14 12:10:39,921 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5549 states. [2022-12-14 12:10:40,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5549 to 5549. [2022-12-14 12:10:40,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5549 states, 3522 states have (on average 1.3546280522430438) internal successors, (4771), 3649 states have internal predecessors, (4771), 1605 states have call successors, (1605), 423 states have call predecessors, (1605), 419 states have return successors, (1613), 1581 states have call predecessors, (1613), 1601 states have call successors, (1613) [2022-12-14 12:10:40,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5549 states to 5549 states and 7989 transitions. [2022-12-14 12:10:40,108 INFO L78 Accepts]: Start accepts. Automaton has 5549 states and 7989 transitions. Word has length 334 [2022-12-14 12:10:40,109 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 12:10:40,109 INFO L495 AbstractCegarLoop]: Abstraction has 5549 states and 7989 transitions. [2022-12-14 12:10:40,109 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 2 states have call successors, (37), 3 states have call predecessors, (37), 1 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) [2022-12-14 12:10:40,109 INFO L276 IsEmpty]: Start isEmpty. Operand 5549 states and 7989 transitions. [2022-12-14 12:10:40,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 340 [2022-12-14 12:10:40,113 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 12:10:40,114 INFO L195 NwaCegarLoop]: trace histogram [30, 27, 27, 27, 27, 27, 27, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 12:10:40,114 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-14 12:10:40,114 INFO L420 AbstractCegarLoop]: === Iteration 6 === 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)] === [2022-12-14 12:10:40,114 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 12:10:40,114 INFO L85 PathProgramCache]: Analyzing trace with hash -732021747, now seen corresponding path program 1 times [2022-12-14 12:10:40,114 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 12:10:40,114 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1572683657] [2022-12-14 12:10:40,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:10:40,114 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 12:10:40,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:10:40,550 INFO L134 CoverageAnalysis]: Checked inductivity of 3004 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 3000 trivial. 0 not checked. [2022-12-14 12:10:40,550 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 12:10:40,551 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1572683657] [2022-12-14 12:10:40,551 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1572683657] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 12:10:40,551 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 12:10:40,551 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 12:10:40,551 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1865012112] [2022-12-14 12:10:40,551 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 12:10:40,552 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 12:10:40,552 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 12:10:40,552 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 12:10:40,552 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 12:10:40,553 INFO L87 Difference]: Start difference. First operand 5549 states and 7989 transitions. Second operand has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 2 states have call successors, (38), 3 states have call predecessors, (38), 1 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) [2022-12-14 12:10:44,651 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 12:10:46,658 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 12:10:48,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 12:10:48,472 INFO L93 Difference]: Finished difference Result 5555 states and 7994 transitions. [2022-12-14 12:10:48,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 12:10:48,472 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 2 states have call successors, (38), 3 states have call predecessors, (38), 1 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) Word has length 339 [2022-12-14 12:10:48,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 12:10:48,489 INFO L225 Difference]: With dead ends: 5555 [2022-12-14 12:10:48,489 INFO L226 Difference]: Without dead ends: 5553 [2022-12-14 12:10:48,491 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 [2022-12-14 12:10:48,492 INFO L413 NwaCegarLoop]: 1871 mSDtfsCounter, 2132 mSDsluCounter, 3720 mSDsCounter, 0 mSdLazyCounter, 1073 mSolverCounterSat, 1 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2144 SdHoareTripleChecker+Valid, 5591 SdHoareTripleChecker+Invalid, 1076 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1073 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.7s IncrementalHoareTripleChecker+Time [2022-12-14 12:10:48,492 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2144 Valid, 5591 Invalid, 1076 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1073 Invalid, 2 Unknown, 0 Unchecked, 7.7s Time] [2022-12-14 12:10:48,497 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5553 states. [2022-12-14 12:10:48,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5553 to 5553. [2022-12-14 12:10:48,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5553 states, 3525 states have (on average 1.3543262411347519) internal successors, (4774), 3652 states have internal predecessors, (4774), 1605 states have call successors, (1605), 424 states have call predecessors, (1605), 420 states have return successors, (1613), 1581 states have call predecessors, (1613), 1601 states have call successors, (1613) [2022-12-14 12:10:48,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5553 states to 5553 states and 7992 transitions. [2022-12-14 12:10:48,727 INFO L78 Accepts]: Start accepts. Automaton has 5553 states and 7992 transitions. Word has length 339 [2022-12-14 12:10:48,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 12:10:48,727 INFO L495 AbstractCegarLoop]: Abstraction has 5553 states and 7992 transitions. [2022-12-14 12:10:48,728 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 2 states have call successors, (38), 3 states have call predecessors, (38), 1 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) [2022-12-14 12:10:48,728 INFO L276 IsEmpty]: Start isEmpty. Operand 5553 states and 7992 transitions. [2022-12-14 12:10:48,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 350 [2022-12-14 12:10:48,732 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 12:10:48,732 INFO L195 NwaCegarLoop]: trace histogram [30, 27, 27, 27, 27, 27, 27, 4, 4, 4, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 12:10:48,732 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-14 12:10:48,732 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)] === [2022-12-14 12:10:48,733 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 12:10:48,733 INFO L85 PathProgramCache]: Analyzing trace with hash 406547615, now seen corresponding path program 1 times [2022-12-14 12:10:48,733 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 12:10:48,733 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1000232604] [2022-12-14 12:10:48,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:10:48,733 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 12:10:48,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:10:49,145 INFO L134 CoverageAnalysis]: Checked inductivity of 3016 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 3010 trivial. 0 not checked. [2022-12-14 12:10:49,146 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 12:10:49,146 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1000232604] [2022-12-14 12:10:49,146 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1000232604] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 12:10:49,146 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 12:10:49,146 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 12:10:49,146 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [37854221] [2022-12-14 12:10:49,146 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 12:10:49,147 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 12:10:49,147 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 12:10:49,148 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 12:10:49,148 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 12:10:49,148 INFO L87 Difference]: Start difference. First operand 5553 states and 7992 transitions. Second operand has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 2 states have call successors, (42), 3 states have call predecessors, (42), 1 states have return successors, (40), 2 states have call predecessors, (40), 2 states have call successors, (40) [2022-12-14 12:10:52,711 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 12:10:54,715 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 12:10:55,769 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 12:10:56,742 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 12:10:56,742 INFO L93 Difference]: Finished difference Result 5559 states and 7997 transitions. [2022-12-14 12:10:56,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 12:10:56,742 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 2 states have call successors, (42), 3 states have call predecessors, (42), 1 states have return successors, (40), 2 states have call predecessors, (40), 2 states have call successors, (40) Word has length 349 [2022-12-14 12:10:56,743 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 12:10:56,758 INFO L225 Difference]: With dead ends: 5559 [2022-12-14 12:10:56,758 INFO L226 Difference]: Without dead ends: 5557 [2022-12-14 12:10:56,760 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 [2022-12-14 12:10:56,761 INFO L413 NwaCegarLoop]: 1871 mSDtfsCounter, 2131 mSDsluCounter, 3720 mSDsCounter, 0 mSdLazyCounter, 1073 mSolverCounterSat, 1 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2142 SdHoareTripleChecker+Valid, 5591 SdHoareTripleChecker+Invalid, 1076 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1073 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.4s IncrementalHoareTripleChecker+Time [2022-12-14 12:10:56,761 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2142 Valid, 5591 Invalid, 1076 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1073 Invalid, 2 Unknown, 0 Unchecked, 7.4s Time] [2022-12-14 12:10:56,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5557 states. [2022-12-14 12:10:56,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5557 to 5557. [2022-12-14 12:10:56,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5557 states, 3528 states have (on average 1.3540249433106577) internal successors, (4777), 3655 states have internal predecessors, (4777), 1605 states have call successors, (1605), 425 states have call predecessors, (1605), 421 states have return successors, (1613), 1581 states have call predecessors, (1613), 1601 states have call successors, (1613) [2022-12-14 12:10:56,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5557 states to 5557 states and 7995 transitions. [2022-12-14 12:10:56,975 INFO L78 Accepts]: Start accepts. Automaton has 5557 states and 7995 transitions. Word has length 349 [2022-12-14 12:10:56,975 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 12:10:56,975 INFO L495 AbstractCegarLoop]: Abstraction has 5557 states and 7995 transitions. [2022-12-14 12:10:56,975 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 2 states have call successors, (42), 3 states have call predecessors, (42), 1 states have return successors, (40), 2 states have call predecessors, (40), 2 states have call successors, (40) [2022-12-14 12:10:56,976 INFO L276 IsEmpty]: Start isEmpty. Operand 5557 states and 7995 transitions. [2022-12-14 12:10:56,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 350 [2022-12-14 12:10:56,979 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 12:10:56,980 INFO L195 NwaCegarLoop]: trace histogram [30, 27, 27, 27, 27, 27, 27, 5, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 12:10:56,980 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-14 12:10:56,980 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)] === [2022-12-14 12:10:56,980 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 12:10:56,980 INFO L85 PathProgramCache]: Analyzing trace with hash 728590477, now seen corresponding path program 1 times [2022-12-14 12:10:56,980 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 12:10:56,980 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [889307192] [2022-12-14 12:10:56,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:10:56,981 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 12:10:57,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:10:57,410 INFO L134 CoverageAnalysis]: Checked inductivity of 3028 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 3020 trivial. 0 not checked. [2022-12-14 12:10:57,410 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 12:10:57,410 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [889307192] [2022-12-14 12:10:57,410 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [889307192] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 12:10:57,410 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 12:10:57,411 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 12:10:57,411 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1307817750] [2022-12-14 12:10:57,411 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 12:10:57,411 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 12:10:57,411 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 12:10:57,412 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 12:10:57,412 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 12:10:57,412 INFO L87 Difference]: Start difference. First operand 5557 states and 7995 transitions. Second operand has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 2 states have call successors, (40), 3 states have call predecessors, (40), 1 states have return successors, (38), 2 states have call predecessors, (38), 2 states have call successors, (38) [2022-12-14 12:11:00,945 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 12:11:02,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 12:11:02,806 INFO L93 Difference]: Finished difference Result 5938 states and 8420 transitions. [2022-12-14 12:11:02,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 12:11:02,807 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 2 states have call successors, (40), 3 states have call predecessors, (40), 1 states have return successors, (38), 2 states have call predecessors, (38), 2 states have call successors, (38) Word has length 349 [2022-12-14 12:11:02,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 12:11:02,822 INFO L225 Difference]: With dead ends: 5938 [2022-12-14 12:11:02,822 INFO L226 Difference]: Without dead ends: 5936 [2022-12-14 12:11:02,825 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 [2022-12-14 12:11:02,825 INFO L413 NwaCegarLoop]: 1943 mSDtfsCounter, 1981 mSDsluCounter, 4202 mSDsCounter, 0 mSdLazyCounter, 1165 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1993 SdHoareTripleChecker+Valid, 6145 SdHoareTripleChecker+Invalid, 1167 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1165 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2022-12-14 12:11:02,826 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1993 Valid, 6145 Invalid, 1167 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1165 Invalid, 1 Unknown, 0 Unchecked, 5.1s Time] [2022-12-14 12:11:02,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5936 states. [2022-12-14 12:11:03,045 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5936 to 5932. [2022-12-14 12:11:03,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5932 states, 3746 states have (on average 1.3454351308061934) internal successors, (5040), 3887 states have internal predecessors, (5040), 1682 states have call successors, (1682), 503 states have call predecessors, (1682), 501 states have return successors, (1694), 1657 states have call predecessors, (1694), 1678 states have call successors, (1694) [2022-12-14 12:11:03,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5932 states to 5932 states and 8416 transitions. [2022-12-14 12:11:03,067 INFO L78 Accepts]: Start accepts. Automaton has 5932 states and 8416 transitions. Word has length 349 [2022-12-14 12:11:03,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 12:11:03,067 INFO L495 AbstractCegarLoop]: Abstraction has 5932 states and 8416 transitions. [2022-12-14 12:11:03,068 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 2 states have call successors, (40), 3 states have call predecessors, (40), 1 states have return successors, (38), 2 states have call predecessors, (38), 2 states have call successors, (38) [2022-12-14 12:11:03,068 INFO L276 IsEmpty]: Start isEmpty. Operand 5932 states and 8416 transitions. [2022-12-14 12:11:03,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 361 [2022-12-14 12:11:03,072 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 12:11:03,072 INFO L195 NwaCegarLoop]: trace histogram [30, 27, 27, 27, 27, 27, 27, 6, 5, 5, 4, 4, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 12:11:03,072 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-12-14 12:11:03,072 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)] === [2022-12-14 12:11:03,073 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 12:11:03,073 INFO L85 PathProgramCache]: Analyzing trace with hash 1932624404, now seen corresponding path program 1 times [2022-12-14 12:11:03,073 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 12:11:03,073 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [507309447] [2022-12-14 12:11:03,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:11:03,073 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 12:11:03,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:11:03,482 INFO L134 CoverageAnalysis]: Checked inductivity of 3049 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 3039 trivial. 0 not checked. [2022-12-14 12:11:03,482 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 12:11:03,482 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [507309447] [2022-12-14 12:11:03,482 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [507309447] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 12:11:03,482 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 12:11:03,483 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 12:11:03,483 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2128799944] [2022-12-14 12:11:03,483 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 12:11:03,483 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 12:11:03,483 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 12:11:03,484 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 12:11:03,484 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 12:11:03,484 INFO L87 Difference]: Start difference. First operand 5932 states and 8416 transitions. Second operand has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 2 states have call successors, (44), 3 states have call predecessors, (44), 1 states have return successors, (42), 2 states have call predecessors, (42), 2 states have call successors, (42) [2022-12-14 12:11:06,898 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 12:11:08,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 12:11:08,804 INFO L93 Difference]: Finished difference Result 5942 states and 8423 transitions. [2022-12-14 12:11:08,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 12:11:08,804 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 2 states have call successors, (44), 3 states have call predecessors, (44), 1 states have return successors, (42), 2 states have call predecessors, (42), 2 states have call successors, (42) Word has length 360 [2022-12-14 12:11:08,805 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 12:11:08,818 INFO L225 Difference]: With dead ends: 5942 [2022-12-14 12:11:08,818 INFO L226 Difference]: Without dead ends: 5940 [2022-12-14 12:11:08,820 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 [2022-12-14 12:11:08,820 INFO L413 NwaCegarLoop]: 1943 mSDtfsCounter, 1980 mSDsluCounter, 4202 mSDsCounter, 0 mSdLazyCounter, 1165 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1991 SdHoareTripleChecker+Valid, 6145 SdHoareTripleChecker+Invalid, 1167 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1165 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2022-12-14 12:11:08,820 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1991 Valid, 6145 Invalid, 1167 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1165 Invalid, 1 Unknown, 0 Unchecked, 5.0s Time] [2022-12-14 12:11:08,824 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5940 states. [2022-12-14 12:11:09,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5940 to 5936. [2022-12-14 12:11:09,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5936 states, 3749 states have (on average 1.3451587089890638) internal successors, (5043), 3890 states have internal predecessors, (5043), 1682 states have call successors, (1682), 504 states have call predecessors, (1682), 502 states have return successors, (1694), 1657 states have call predecessors, (1694), 1678 states have call successors, (1694) [2022-12-14 12:11:09,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5936 states to 5936 states and 8419 transitions. [2022-12-14 12:11:09,067 INFO L78 Accepts]: Start accepts. Automaton has 5936 states and 8419 transitions. Word has length 360 [2022-12-14 12:11:09,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 12:11:09,067 INFO L495 AbstractCegarLoop]: Abstraction has 5936 states and 8419 transitions. [2022-12-14 12:11:09,067 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 2 states have call successors, (44), 3 states have call predecessors, (44), 1 states have return successors, (42), 2 states have call predecessors, (42), 2 states have call successors, (42) [2022-12-14 12:11:09,068 INFO L276 IsEmpty]: Start isEmpty. Operand 5936 states and 8419 transitions. [2022-12-14 12:11:09,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 365 [2022-12-14 12:11:09,072 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 12:11:09,072 INFO L195 NwaCegarLoop]: trace histogram [30, 27, 27, 27, 27, 27, 27, 7, 6, 6, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 12:11:09,072 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-12-14 12:11:09,072 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)] === [2022-12-14 12:11:09,072 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 12:11:09,073 INFO L85 PathProgramCache]: Analyzing trace with hash -170233751, now seen corresponding path program 1 times [2022-12-14 12:11:09,073 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 12:11:09,073 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [394951101] [2022-12-14 12:11:09,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:11:09,073 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 12:11:09,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:11:09,468 INFO L134 CoverageAnalysis]: Checked inductivity of 3070 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 3058 trivial. 0 not checked. [2022-12-14 12:11:09,468 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 12:11:09,468 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [394951101] [2022-12-14 12:11:09,468 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [394951101] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 12:11:09,468 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 12:11:09,468 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 12:11:09,469 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [367351852] [2022-12-14 12:11:09,469 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 12:11:09,469 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 12:11:09,469 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 12:11:09,470 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 12:11:09,470 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 12:11:09,470 INFO L87 Difference]: Start difference. First operand 5936 states and 8419 transitions. Second operand has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 2 states have call successors, (45), 3 states have call predecessors, (45), 1 states have return successors, (43), 2 states have call predecessors, (43), 2 states have call successors, (43) [2022-12-14 12:11:15,680 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 12:11:15,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 12:11:15,861 INFO L93 Difference]: Finished difference Result 6295 states and 8833 transitions. [2022-12-14 12:11:15,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 12:11:15,862 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 2 states have call successors, (45), 3 states have call predecessors, (45), 1 states have return successors, (43), 2 states have call predecessors, (43), 2 states have call successors, (43) Word has length 364 [2022-12-14 12:11:15,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 12:11:15,875 INFO L225 Difference]: With dead ends: 6295 [2022-12-14 12:11:15,875 INFO L226 Difference]: Without dead ends: 6293 [2022-12-14 12:11:15,877 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 [2022-12-14 12:11:15,878 INFO L413 NwaCegarLoop]: 1885 mSDtfsCounter, 2130 mSDsluCounter, 3802 mSDsCounter, 0 mSdLazyCounter, 1085 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2140 SdHoareTripleChecker+Valid, 5687 SdHoareTripleChecker+Invalid, 1087 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1085 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.1s IncrementalHoareTripleChecker+Time [2022-12-14 12:11:15,878 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2140 Valid, 5687 Invalid, 1087 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1085 Invalid, 1 Unknown, 0 Unchecked, 6.1s Time] [2022-12-14 12:11:15,882 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6293 states. [2022-12-14 12:11:16,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6293 to 6273. [2022-12-14 12:11:16,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6273 states, 3935 states have (on average 1.3364675984752223) internal successors, (5259), 4091 states have internal predecessors, (5259), 1766 states have call successors, (1766), 571 states have call predecessors, (1766), 569 states have return successors, (1781), 1732 states have call predecessors, (1781), 1762 states have call successors, (1781) [2022-12-14 12:11:16,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6273 states to 6273 states and 8806 transitions. [2022-12-14 12:11:16,158 INFO L78 Accepts]: Start accepts. Automaton has 6273 states and 8806 transitions. Word has length 364 [2022-12-14 12:11:16,158 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 12:11:16,159 INFO L495 AbstractCegarLoop]: Abstraction has 6273 states and 8806 transitions. [2022-12-14 12:11:16,159 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 2 states have call successors, (45), 3 states have call predecessors, (45), 1 states have return successors, (43), 2 states have call predecessors, (43), 2 states have call successors, (43) [2022-12-14 12:11:16,159 INFO L276 IsEmpty]: Start isEmpty. Operand 6273 states and 8806 transitions. [2022-12-14 12:11:16,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 371 [2022-12-14 12:11:16,163 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 12:11:16,164 INFO L195 NwaCegarLoop]: trace histogram [30, 27, 27, 27, 27, 27, 27, 8, 7, 7, 4, 4, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 12:11:16,164 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-12-14 12:11:16,164 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)] === [2022-12-14 12:11:16,164 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 12:11:16,164 INFO L85 PathProgramCache]: Analyzing trace with hash 1833736660, now seen corresponding path program 1 times [2022-12-14 12:11:16,164 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 12:11:16,165 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [184188044] [2022-12-14 12:11:16,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:11:16,165 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 12:11:16,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:11:16,547 INFO L134 CoverageAnalysis]: Checked inductivity of 3097 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 3083 trivial. 0 not checked. [2022-12-14 12:11:16,547 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 12:11:16,548 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [184188044] [2022-12-14 12:11:16,548 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [184188044] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 12:11:16,548 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 12:11:16,548 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 12:11:16,548 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1533418506] [2022-12-14 12:11:16,548 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 12:11:16,549 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 12:11:16,549 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 12:11:16,549 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 12:11:16,550 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 12:11:16,550 INFO L87 Difference]: Start difference. First operand 6273 states and 8806 transitions. Second operand has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 2 states have call successors, (46), 3 states have call predecessors, (46), 1 states have return successors, (44), 2 states have call predecessors, (44), 2 states have call successors, (44) [2022-12-14 12:11:20,990 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.57s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 12:11:22,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 12:11:22,720 INFO L93 Difference]: Finished difference Result 6664 states and 9269 transitions. [2022-12-14 12:11:22,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 12:11:22,721 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 2 states have call successors, (46), 3 states have call predecessors, (46), 1 states have return successors, (44), 2 states have call predecessors, (44), 2 states have call successors, (44) Word has length 370 [2022-12-14 12:11:22,721 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 12:11:22,734 INFO L225 Difference]: With dead ends: 6664 [2022-12-14 12:11:22,734 INFO L226 Difference]: Without dead ends: 6662 [2022-12-14 12:11:22,737 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 [2022-12-14 12:11:22,737 INFO L413 NwaCegarLoop]: 1903 mSDtfsCounter, 2028 mSDsluCounter, 3957 mSDsCounter, 0 mSdLazyCounter, 1122 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2035 SdHoareTripleChecker+Valid, 5860 SdHoareTripleChecker+Invalid, 1124 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1122 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2022-12-14 12:11:22,737 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2035 Valid, 5860 Invalid, 1124 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1122 Invalid, 0 Unknown, 0 Unchecked, 5.8s Time] [2022-12-14 12:11:22,741 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6662 states. [2022-12-14 12:11:23,050 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6662 to 6662. [2022-12-14 12:11:23,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6662 states, 4172 states have (on average 1.329817833173538) internal successors, (5548), 4336 states have internal predecessors, (5548), 1852 states have call successors, (1852), 637 states have call predecessors, (1852), 635 states have return successors, (1867), 1818 states have call predecessors, (1867), 1848 states have call successors, (1867) [2022-12-14 12:11:23,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6662 states to 6662 states and 9267 transitions. [2022-12-14 12:11:23,072 INFO L78 Accepts]: Start accepts. Automaton has 6662 states and 9267 transitions. Word has length 370 [2022-12-14 12:11:23,073 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 12:11:23,073 INFO L495 AbstractCegarLoop]: Abstraction has 6662 states and 9267 transitions. [2022-12-14 12:11:23,073 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 2 states have call successors, (46), 3 states have call predecessors, (46), 1 states have return successors, (44), 2 states have call predecessors, (44), 2 states have call successors, (44) [2022-12-14 12:11:23,073 INFO L276 IsEmpty]: Start isEmpty. Operand 6662 states and 9267 transitions. [2022-12-14 12:11:23,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 370 [2022-12-14 12:11:23,078 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 12:11:23,078 INFO L195 NwaCegarLoop]: trace histogram [31, 27, 27, 27, 27, 27, 27, 5, 5, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 12:11:23,078 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-12-14 12:11:23,078 INFO L420 AbstractCegarLoop]: === Iteration 12 === 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)] === [2022-12-14 12:11:23,079 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 12:11:23,079 INFO L85 PathProgramCache]: Analyzing trace with hash -733673200, now seen corresponding path program 1 times [2022-12-14 12:11:23,079 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 12:11:23,079 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1502324540] [2022-12-14 12:11:23,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:11:23,079 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 12:11:23,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:11:23,356 INFO L134 CoverageAnalysis]: Checked inductivity of 3071 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 3068 trivial. 0 not checked. [2022-12-14 12:11:23,356 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 12:11:23,356 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1502324540] [2022-12-14 12:11:23,356 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1502324540] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 12:11:23,356 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 12:11:23,357 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 12:11:23,357 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [381615023] [2022-12-14 12:11:23,357 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 12:11:23,357 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 12:11:23,357 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 12:11:23,357 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 12:11:23,358 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 12:11:23,358 INFO L87 Difference]: Start difference. First operand 6662 states and 9267 transitions. Second operand has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 3 states have call successors, (46), 2 states have call predecessors, (46), 1 states have return successors, (43), 3 states have call predecessors, (43), 3 states have call successors, (43) [2022-12-14 12:11:27,558 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 12:11:29,566 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 12:11:29,774 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 12:11:29,774 INFO L93 Difference]: Finished difference Result 13437 states and 18695 transitions. [2022-12-14 12:11:29,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 12:11:29,775 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 3 states have call successors, (46), 2 states have call predecessors, (46), 1 states have return successors, (43), 3 states have call predecessors, (43), 3 states have call successors, (43) Word has length 369 [2022-12-14 12:11:29,776 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 12:11:29,791 INFO L225 Difference]: With dead ends: 13437 [2022-12-14 12:11:29,791 INFO L226 Difference]: Without dead ends: 8298 [2022-12-14 12:11:29,801 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 12:11:29,801 INFO L413 NwaCegarLoop]: 2714 mSDtfsCounter, 1023 mSDsluCounter, 1817 mSDsCounter, 0 mSdLazyCounter, 918 mSolverCounterSat, 9 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1023 SdHoareTripleChecker+Valid, 4531 SdHoareTripleChecker+Invalid, 928 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 918 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.9s IncrementalHoareTripleChecker+Time [2022-12-14 12:11:29,802 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1023 Valid, 4531 Invalid, 928 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 918 Invalid, 1 Unknown, 0 Unchecked, 5.9s Time] [2022-12-14 12:11:29,807 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8298 states. [2022-12-14 12:11:30,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8298 to 8236. [2022-12-14 12:11:30,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8236 states, 5167 states have (on average 1.3301722469518096) internal successors, (6873), 5369 states have internal predecessors, (6873), 2282 states have call successors, (2282), 788 states have call predecessors, (2282), 784 states have return successors, (2300), 2234 states have call predecessors, (2300), 2278 states have call successors, (2300) [2022-12-14 12:11:30,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8236 states to 8236 states and 11455 transitions. [2022-12-14 12:11:30,220 INFO L78 Accepts]: Start accepts. Automaton has 8236 states and 11455 transitions. Word has length 369 [2022-12-14 12:11:30,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 12:11:30,220 INFO L495 AbstractCegarLoop]: Abstraction has 8236 states and 11455 transitions. [2022-12-14 12:11:30,220 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 3 states have call successors, (46), 2 states have call predecessors, (46), 1 states have return successors, (43), 3 states have call predecessors, (43), 3 states have call successors, (43) [2022-12-14 12:11:30,220 INFO L276 IsEmpty]: Start isEmpty. Operand 8236 states and 11455 transitions. [2022-12-14 12:11:30,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 376 [2022-12-14 12:11:30,233 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 12:11:30,233 INFO L195 NwaCegarLoop]: trace histogram [30, 27, 27, 27, 27, 27, 27, 9, 8, 8, 4, 4, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 12:11:30,233 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-12-14 12:11:30,233 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)] === [2022-12-14 12:11:30,233 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 12:11:30,234 INFO L85 PathProgramCache]: Analyzing trace with hash -1336368684, now seen corresponding path program 1 times [2022-12-14 12:11:30,234 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 12:11:30,234 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1296493168] [2022-12-14 12:11:30,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:11:30,234 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 12:11:30,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:11:30,583 INFO L134 CoverageAnalysis]: Checked inductivity of 3127 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 3111 trivial. 0 not checked. [2022-12-14 12:11:30,583 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 12:11:30,583 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1296493168] [2022-12-14 12:11:30,583 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1296493168] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 12:11:30,583 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 12:11:30,584 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 12:11:30,584 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [408924984] [2022-12-14 12:11:30,584 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 12:11:30,584 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 12:11:30,584 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 12:11:30,584 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 12:11:30,584 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 12:11:30,585 INFO L87 Difference]: Start difference. First operand 8236 states and 11455 transitions. Second operand has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 2 states have call successors, (47), 3 states have call predecessors, (47), 1 states have return successors, (45), 2 states have call predecessors, (45), 2 states have call successors, (45) [2022-12-14 12:11:33,641 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 12:11:37,435 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 12:11:38,607 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 12:11:38,607 INFO L93 Difference]: Finished difference Result 8242 states and 11460 transitions. [2022-12-14 12:11:38,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 12:11:38,608 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 2 states have call successors, (47), 3 states have call predecessors, (47), 1 states have return successors, (45), 2 states have call predecessors, (45), 2 states have call successors, (45) Word has length 375 [2022-12-14 12:11:38,608 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 12:11:38,625 INFO L225 Difference]: With dead ends: 8242 [2022-12-14 12:11:38,625 INFO L226 Difference]: Without dead ends: 8240 [2022-12-14 12:11:38,628 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 [2022-12-14 12:11:38,628 INFO L413 NwaCegarLoop]: 1871 mSDtfsCounter, 2131 mSDsluCounter, 3720 mSDsCounter, 0 mSdLazyCounter, 1073 mSolverCounterSat, 1 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2137 SdHoareTripleChecker+Valid, 5591 SdHoareTripleChecker+Invalid, 1076 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1073 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.6s IncrementalHoareTripleChecker+Time [2022-12-14 12:11:38,628 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2137 Valid, 5591 Invalid, 1076 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1073 Invalid, 2 Unknown, 0 Unchecked, 7.6s Time] [2022-12-14 12:11:38,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8240 states. [2022-12-14 12:11:39,039 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8240 to 8240. [2022-12-14 12:11:39,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8240 states, 5170 states have (on average 1.3299806576402322) internal successors, (6876), 5372 states have internal predecessors, (6876), 2282 states have call successors, (2282), 789 states have call predecessors, (2282), 785 states have return successors, (2300), 2234 states have call predecessors, (2300), 2278 states have call successors, (2300) [2022-12-14 12:11:39,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8240 states to 8240 states and 11458 transitions. [2022-12-14 12:11:39,061 INFO L78 Accepts]: Start accepts. Automaton has 8240 states and 11458 transitions. Word has length 375 [2022-12-14 12:11:39,062 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 12:11:39,062 INFO L495 AbstractCegarLoop]: Abstraction has 8240 states and 11458 transitions. [2022-12-14 12:11:39,062 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 2 states have call successors, (47), 3 states have call predecessors, (47), 1 states have return successors, (45), 2 states have call predecessors, (45), 2 states have call successors, (45) [2022-12-14 12:11:39,062 INFO L276 IsEmpty]: Start isEmpty. Operand 8240 states and 11458 transitions. [2022-12-14 12:11:39,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 380 [2022-12-14 12:11:39,066 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 12:11:39,066 INFO L195 NwaCegarLoop]: trace histogram [30, 27, 27, 27, 27, 27, 27, 10, 9, 9, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 12:11:39,066 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-12-14 12:11:39,066 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)] === [2022-12-14 12:11:39,066 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 12:11:39,066 INFO L85 PathProgramCache]: Analyzing trace with hash -1827676513, now seen corresponding path program 1 times [2022-12-14 12:11:39,066 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 12:11:39,067 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [408400675] [2022-12-14 12:11:39,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:11:39,067 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 12:11:39,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:11:39,416 INFO L134 CoverageAnalysis]: Checked inductivity of 3160 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 3142 trivial. 0 not checked. [2022-12-14 12:11:39,417 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 12:11:39,417 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [408400675] [2022-12-14 12:11:39,417 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [408400675] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 12:11:39,417 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 12:11:39,417 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 12:11:39,417 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2035049780] [2022-12-14 12:11:39,417 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 12:11:39,417 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 12:11:39,417 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 12:11:39,418 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 12:11:39,418 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 12:11:39,418 INFO L87 Difference]: Start difference. First operand 8240 states and 11458 transitions. Second operand has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 2 states have call successors, (48), 3 states have call predecessors, (48), 1 states have return successors, (46), 2 states have call predecessors, (46), 2 states have call successors, (46) [2022-12-14 12:11:44,751 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 12:11:44,751 INFO L93 Difference]: Finished difference Result 8246 states and 11463 transitions. [2022-12-14 12:11:44,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 12:11:44,752 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 2 states have call successors, (48), 3 states have call predecessors, (48), 1 states have return successors, (46), 2 states have call predecessors, (46), 2 states have call successors, (46) Word has length 379 [2022-12-14 12:11:44,752 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 12:11:44,766 INFO L225 Difference]: With dead ends: 8246 [2022-12-14 12:11:44,766 INFO L226 Difference]: Without dead ends: 8244 [2022-12-14 12:11:44,768 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 [2022-12-14 12:11:44,768 INFO L413 NwaCegarLoop]: 1871 mSDtfsCounter, 2131 mSDsluCounter, 3720 mSDsCounter, 0 mSdLazyCounter, 1075 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2136 SdHoareTripleChecker+Valid, 5591 SdHoareTripleChecker+Invalid, 1076 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1075 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2022-12-14 12:11:44,769 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2136 Valid, 5591 Invalid, 1076 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1075 Invalid, 0 Unknown, 0 Unchecked, 4.9s Time] [2022-12-14 12:11:44,773 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8244 states. [2022-12-14 12:11:45,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8244 to 8244. [2022-12-14 12:11:45,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8244 states, 5173 states have (on average 1.3297892905470714) internal successors, (6879), 5375 states have internal predecessors, (6879), 2282 states have call successors, (2282), 790 states have call predecessors, (2282), 786 states have return successors, (2300), 2234 states have call predecessors, (2300), 2278 states have call successors, (2300) [2022-12-14 12:11:45,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8244 states to 8244 states and 11461 transitions. [2022-12-14 12:11:45,176 INFO L78 Accepts]: Start accepts. Automaton has 8244 states and 11461 transitions. Word has length 379 [2022-12-14 12:11:45,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 12:11:45,177 INFO L495 AbstractCegarLoop]: Abstraction has 8244 states and 11461 transitions. [2022-12-14 12:11:45,177 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 2 states have call successors, (48), 3 states have call predecessors, (48), 1 states have return successors, (46), 2 states have call predecessors, (46), 2 states have call successors, (46) [2022-12-14 12:11:45,177 INFO L276 IsEmpty]: Start isEmpty. Operand 8244 states and 11461 transitions. [2022-12-14 12:11:45,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 386 [2022-12-14 12:11:45,180 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 12:11:45,181 INFO L195 NwaCegarLoop]: trace histogram [30, 27, 27, 27, 27, 27, 27, 11, 10, 10, 4, 4, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 12:11:45,181 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-12-14 12:11:45,181 INFO L420 AbstractCegarLoop]: === Iteration 15 === 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)] === [2022-12-14 12:11:45,181 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 12:11:45,181 INFO L85 PathProgramCache]: Analyzing trace with hash 914985364, now seen corresponding path program 1 times [2022-12-14 12:11:45,181 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 12:11:45,181 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1204724399] [2022-12-14 12:11:45,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:11:45,182 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 12:11:45,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:11:45,534 INFO L134 CoverageAnalysis]: Checked inductivity of 3199 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 3179 trivial. 0 not checked. [2022-12-14 12:11:45,534 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 12:11:45,534 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1204724399] [2022-12-14 12:11:45,534 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1204724399] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 12:11:45,534 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 12:11:45,535 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 12:11:45,535 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1124648736] [2022-12-14 12:11:45,535 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 12:11:45,535 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 12:11:45,535 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 12:11:45,535 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 12:11:45,536 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 12:11:45,536 INFO L87 Difference]: Start difference. First operand 8244 states and 11461 transitions. Second operand has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 2 states have call successors, (49), 3 states have call predecessors, (49), 1 states have return successors, (47), 2 states have call predecessors, (47), 2 states have call successors, (47) [2022-12-14 12:11:50,681 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.24s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 12:11:52,689 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 12:11:52,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 12:11:52,928 INFO L93 Difference]: Finished difference Result 8250 states and 11466 transitions. [2022-12-14 12:11:52,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 12:11:52,929 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 2 states have call successors, (49), 3 states have call predecessors, (49), 1 states have return successors, (47), 2 states have call predecessors, (47), 2 states have call successors, (47) Word has length 385 [2022-12-14 12:11:52,929 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 12:11:52,944 INFO L225 Difference]: With dead ends: 8250 [2022-12-14 12:11:52,944 INFO L226 Difference]: Without dead ends: 8248 [2022-12-14 12:11:52,946 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 [2022-12-14 12:11:52,947 INFO L413 NwaCegarLoop]: 1871 mSDtfsCounter, 2131 mSDsluCounter, 3720 mSDsCounter, 0 mSdLazyCounter, 1074 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2135 SdHoareTripleChecker+Valid, 5591 SdHoareTripleChecker+Invalid, 1076 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1074 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.9s IncrementalHoareTripleChecker+Time [2022-12-14 12:11:52,947 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2135 Valid, 5591 Invalid, 1076 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1074 Invalid, 1 Unknown, 0 Unchecked, 6.9s Time] [2022-12-14 12:11:52,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8248 states. [2022-12-14 12:11:53,454 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8248 to 8248. [2022-12-14 12:11:53,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8248 states, 5176 states have (on average 1.3295981452859351) internal successors, (6882), 5378 states have internal predecessors, (6882), 2282 states have call successors, (2282), 791 states have call predecessors, (2282), 787 states have return successors, (2300), 2234 states have call predecessors, (2300), 2278 states have call successors, (2300) [2022-12-14 12:11:53,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8248 states to 8248 states and 11464 transitions. [2022-12-14 12:11:53,474 INFO L78 Accepts]: Start accepts. Automaton has 8248 states and 11464 transitions. Word has length 385 [2022-12-14 12:11:53,475 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 12:11:53,475 INFO L495 AbstractCegarLoop]: Abstraction has 8248 states and 11464 transitions. [2022-12-14 12:11:53,475 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 2 states have call successors, (49), 3 states have call predecessors, (49), 1 states have return successors, (47), 2 states have call predecessors, (47), 2 states have call successors, (47) [2022-12-14 12:11:53,475 INFO L276 IsEmpty]: Start isEmpty. Operand 8248 states and 11464 transitions. [2022-12-14 12:11:53,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 385 [2022-12-14 12:11:53,479 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 12:11:53,479 INFO L195 NwaCegarLoop]: trace histogram [30, 27, 27, 27, 27, 27, 27, 12, 11, 11, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 12:11:53,479 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-12-14 12:11:53,479 INFO L420 AbstractCegarLoop]: === Iteration 16 === 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)] === [2022-12-14 12:11:53,479 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 12:11:53,479 INFO L85 PathProgramCache]: Analyzing trace with hash -2039615365, now seen corresponding path program 1 times [2022-12-14 12:11:53,480 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 12:11:53,480 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1889481477] [2022-12-14 12:11:53,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:11:53,480 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 12:11:53,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:11:53,817 INFO L134 CoverageAnalysis]: Checked inductivity of 3238 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 3216 trivial. 0 not checked. [2022-12-14 12:11:53,818 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 12:11:53,818 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1889481477] [2022-12-14 12:11:53,818 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1889481477] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 12:11:53,818 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 12:11:53,818 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 12:11:53,818 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [163768311] [2022-12-14 12:11:53,818 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 12:11:53,818 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 12:11:53,818 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 12:11:53,819 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 12:11:53,819 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 12:11:53,819 INFO L87 Difference]: Start difference. First operand 8248 states and 11464 transitions. Second operand has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 2 states have call successors, (47), 3 states have call predecessors, (47), 1 states have return successors, (45), 2 states have call predecessors, (45), 2 states have call successors, (45) [2022-12-14 12:12:00,149 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 12:12:00,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 12:12:00,422 INFO L93 Difference]: Finished difference Result 8254 states and 11469 transitions. [2022-12-14 12:12:00,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 12:12:00,423 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 2 states have call successors, (47), 3 states have call predecessors, (47), 1 states have return successors, (45), 2 states have call predecessors, (45), 2 states have call successors, (45) Word has length 384 [2022-12-14 12:12:00,423 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 12:12:00,439 INFO L225 Difference]: With dead ends: 8254 [2022-12-14 12:12:00,439 INFO L226 Difference]: Without dead ends: 8252 [2022-12-14 12:12:00,441 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 [2022-12-14 12:12:00,442 INFO L413 NwaCegarLoop]: 1871 mSDtfsCounter, 2132 mSDsluCounter, 3720 mSDsCounter, 0 mSdLazyCounter, 1074 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2135 SdHoareTripleChecker+Valid, 5591 SdHoareTripleChecker+Invalid, 1076 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1074 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.1s IncrementalHoareTripleChecker+Time [2022-12-14 12:12:00,442 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2135 Valid, 5591 Invalid, 1076 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1074 Invalid, 1 Unknown, 0 Unchecked, 6.1s Time] [2022-12-14 12:12:00,446 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8252 states. [2022-12-14 12:12:00,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8252 to 8252. [2022-12-14 12:12:00,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8252 states, 5179 states have (on average 1.3294072214713266) internal successors, (6885), 5381 states have internal predecessors, (6885), 2282 states have call successors, (2282), 792 states have call predecessors, (2282), 788 states have return successors, (2300), 2234 states have call predecessors, (2300), 2278 states have call successors, (2300) [2022-12-14 12:12:00,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8252 states to 8252 states and 11467 transitions. [2022-12-14 12:12:00,920 INFO L78 Accepts]: Start accepts. Automaton has 8252 states and 11467 transitions. Word has length 384 [2022-12-14 12:12:00,920 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 12:12:00,920 INFO L495 AbstractCegarLoop]: Abstraction has 8252 states and 11467 transitions. [2022-12-14 12:12:00,920 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 2 states have call successors, (47), 3 states have call predecessors, (47), 1 states have return successors, (45), 2 states have call predecessors, (45), 2 states have call successors, (45) [2022-12-14 12:12:00,920 INFO L276 IsEmpty]: Start isEmpty. Operand 8252 states and 11467 transitions. [2022-12-14 12:12:00,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 390 [2022-12-14 12:12:00,924 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 12:12:00,924 INFO L195 NwaCegarLoop]: trace histogram [30, 27, 27, 27, 27, 27, 27, 13, 12, 12, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 12:12:00,924 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-12-14 12:12:00,925 INFO L420 AbstractCegarLoop]: === Iteration 17 === 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)] === [2022-12-14 12:12:00,925 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 12:12:00,925 INFO L85 PathProgramCache]: Analyzing trace with hash 34257549, now seen corresponding path program 1 times [2022-12-14 12:12:00,925 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 12:12:00,925 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [520196748] [2022-12-14 12:12:00,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:12:00,925 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 12:12:00,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:12:01,233 INFO L134 CoverageAnalysis]: Checked inductivity of 3284 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 3260 trivial. 0 not checked. [2022-12-14 12:12:01,233 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 12:12:01,233 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [520196748] [2022-12-14 12:12:01,233 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [520196748] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 12:12:01,233 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 12:12:01,233 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 12:12:01,233 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1976195294] [2022-12-14 12:12:01,233 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 12:12:01,233 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 12:12:01,234 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 12:12:01,234 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 12:12:01,234 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 12:12:01,234 INFO L87 Difference]: Start difference. First operand 8252 states and 11467 transitions. Second operand has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 2 states have call successors, (48), 3 states have call predecessors, (48), 1 states have return successors, (46), 2 states have call predecessors, (46), 2 states have call successors, (46) [2022-12-14 12:12:06,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 12:12:06,418 INFO L93 Difference]: Finished difference Result 8258 states and 11472 transitions. [2022-12-14 12:12:06,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 12:12:06,419 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 2 states have call successors, (48), 3 states have call predecessors, (48), 1 states have return successors, (46), 2 states have call predecessors, (46), 2 states have call successors, (46) Word has length 389 [2022-12-14 12:12:06,419 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 12:12:06,434 INFO L225 Difference]: With dead ends: 8258 [2022-12-14 12:12:06,434 INFO L226 Difference]: Without dead ends: 8256 [2022-12-14 12:12:06,437 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 [2022-12-14 12:12:06,437 INFO L413 NwaCegarLoop]: 1871 mSDtfsCounter, 2132 mSDsluCounter, 3720 mSDsCounter, 0 mSdLazyCounter, 1075 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2134 SdHoareTripleChecker+Valid, 5591 SdHoareTripleChecker+Invalid, 1076 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1075 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2022-12-14 12:12:06,437 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2134 Valid, 5591 Invalid, 1076 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1075 Invalid, 0 Unknown, 0 Unchecked, 4.7s Time] [2022-12-14 12:12:06,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8256 states. [2022-12-14 12:12:06,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8256 to 8256. [2022-12-14 12:12:06,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8256 states, 5182 states have (on average 1.3292165187186415) internal successors, (6888), 5384 states have internal predecessors, (6888), 2282 states have call successors, (2282), 793 states have call predecessors, (2282), 789 states have return successors, (2300), 2234 states have call predecessors, (2300), 2278 states have call successors, (2300) [2022-12-14 12:12:06,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8256 states to 8256 states and 11470 transitions. [2022-12-14 12:12:06,943 INFO L78 Accepts]: Start accepts. Automaton has 8256 states and 11470 transitions. Word has length 389 [2022-12-14 12:12:06,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 12:12:06,944 INFO L495 AbstractCegarLoop]: Abstraction has 8256 states and 11470 transitions. [2022-12-14 12:12:06,944 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 2 states have call successors, (48), 3 states have call predecessors, (48), 1 states have return successors, (46), 2 states have call predecessors, (46), 2 states have call successors, (46) [2022-12-14 12:12:06,944 INFO L276 IsEmpty]: Start isEmpty. Operand 8256 states and 11470 transitions. [2022-12-14 12:12:06,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 406 [2022-12-14 12:12:06,948 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 12:12:06,948 INFO L195 NwaCegarLoop]: trace histogram [29, 28, 28, 28, 28, 28, 28, 5, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 12:12:06,948 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-12-14 12:12:06,948 INFO L420 AbstractCegarLoop]: === Iteration 18 === 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)] === [2022-12-14 12:12:06,948 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 12:12:06,948 INFO L85 PathProgramCache]: Analyzing trace with hash -1054116663, now seen corresponding path program 1 times [2022-12-14 12:12:06,949 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 12:12:06,949 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1300621371] [2022-12-14 12:12:06,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:12:06,949 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 12:12:07,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:12:07,175 INFO L134 CoverageAnalysis]: Checked inductivity of 3106 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3106 trivial. 0 not checked. [2022-12-14 12:12:07,175 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 12:12:07,175 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1300621371] [2022-12-14 12:12:07,176 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1300621371] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 12:12:07,176 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 12:12:07,176 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 12:12:07,176 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1015293566] [2022-12-14 12:12:07,176 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 12:12:07,176 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 12:12:07,176 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 12:12:07,177 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 12:12:07,177 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 12:12:07,177 INFO L87 Difference]: Start difference. First operand 8256 states and 11470 transitions. Second operand has 3 states, 3 states have (on average 38.0) internal successors, (114), 3 states have internal predecessors, (114), 3 states have call successors, (47), 2 states have call predecessors, (47), 1 states have return successors, (44), 3 states have call predecessors, (44), 3 states have call successors, (44) [2022-12-14 12:12:11,227 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.39s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 12:12:12,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 12:12:12,488 INFO L93 Difference]: Finished difference Result 19840 states and 27576 transitions. [2022-12-14 12:12:12,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 12:12:12,489 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.0) internal successors, (114), 3 states have internal predecessors, (114), 3 states have call successors, (47), 2 states have call predecessors, (47), 1 states have return successors, (44), 3 states have call predecessors, (44), 3 states have call successors, (44) Word has length 405 [2022-12-14 12:12:12,489 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 12:12:12,511 INFO L225 Difference]: With dead ends: 19840 [2022-12-14 12:12:12,511 INFO L226 Difference]: Without dead ends: 11639 [2022-12-14 12:12:12,526 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 12:12:12,527 INFO L413 NwaCegarLoop]: 2645 mSDtfsCounter, 2031 mSDsluCounter, 1848 mSDsCounter, 0 mSdLazyCounter, 817 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2031 SdHoareTripleChecker+Valid, 4493 SdHoareTripleChecker+Invalid, 830 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 817 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2022-12-14 12:12:12,527 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2031 Valid, 4493 Invalid, 830 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 817 Invalid, 0 Unknown, 0 Unchecked, 4.5s Time] [2022-12-14 12:12:12,534 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11639 states. [2022-12-14 12:12:13,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11639 to 11547. [2022-12-14 12:12:13,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11547 states, 7267 states have (on average 1.3330122471446264) internal successors, (9687), 7577 states have internal predecessors, (9687), 3157 states have call successors, (3157), 1127 states have call predecessors, (3157), 1120 states have return successors, (3184), 3066 states have call predecessors, (3184), 3153 states have call successors, (3184) [2022-12-14 12:12:13,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11547 states to 11547 states and 16028 transitions. [2022-12-14 12:12:13,248 INFO L78 Accepts]: Start accepts. Automaton has 11547 states and 16028 transitions. Word has length 405 [2022-12-14 12:12:13,249 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 12:12:13,249 INFO L495 AbstractCegarLoop]: Abstraction has 11547 states and 16028 transitions. [2022-12-14 12:12:13,249 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.0) internal successors, (114), 3 states have internal predecessors, (114), 3 states have call successors, (47), 2 states have call predecessors, (47), 1 states have return successors, (44), 3 states have call predecessors, (44), 3 states have call successors, (44) [2022-12-14 12:12:13,249 INFO L276 IsEmpty]: Start isEmpty. Operand 11547 states and 16028 transitions. [2022-12-14 12:12:13,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 395 [2022-12-14 12:12:13,253 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 12:12:13,253 INFO L195 NwaCegarLoop]: trace histogram [30, 27, 27, 27, 27, 27, 27, 14, 13, 13, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 12:12:13,253 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-12-14 12:12:13,253 INFO L420 AbstractCegarLoop]: === Iteration 19 === 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)] === [2022-12-14 12:12:13,254 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 12:12:13,254 INFO L85 PathProgramCache]: Analyzing trace with hash 967869307, now seen corresponding path program 1 times [2022-12-14 12:12:13,254 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 12:12:13,254 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [662458972] [2022-12-14 12:12:13,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:12:13,254 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 12:12:13,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:12:13,579 INFO L134 CoverageAnalysis]: Checked inductivity of 3334 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 3308 trivial. 0 not checked. [2022-12-14 12:12:13,579 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 12:12:13,579 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [662458972] [2022-12-14 12:12:13,579 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [662458972] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 12:12:13,579 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 12:12:13,580 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 12:12:13,580 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [477928586] [2022-12-14 12:12:13,580 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 12:12:13,580 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 12:12:13,580 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 12:12:13,581 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 12:12:13,581 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 12:12:13,581 INFO L87 Difference]: Start difference. First operand 11547 states and 16028 transitions. Second operand has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 2 states have call successors, (49), 3 states have call predecessors, (49), 1 states have return successors, (47), 2 states have call predecessors, (47), 2 states have call successors, (47) [2022-12-14 12:12:15,677 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.22s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 12:12:19,466 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 12:12:19,969 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 12:12:19,969 INFO L93 Difference]: Finished difference Result 11557 states and 16035 transitions. [2022-12-14 12:12:19,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 12:12:19,970 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 2 states have call successors, (49), 3 states have call predecessors, (49), 1 states have return successors, (47), 2 states have call predecessors, (47), 2 states have call successors, (47) Word has length 394 [2022-12-14 12:12:19,970 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 12:12:19,989 INFO L225 Difference]: With dead ends: 11557 [2022-12-14 12:12:19,989 INFO L226 Difference]: Without dead ends: 11553 [2022-12-14 12:12:19,992 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 [2022-12-14 12:12:19,992 INFO L413 NwaCegarLoop]: 1934 mSDtfsCounter, 1981 mSDsluCounter, 4184 mSDsCounter, 0 mSdLazyCounter, 1162 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1984 SdHoareTripleChecker+Valid, 6118 SdHoareTripleChecker+Invalid, 1164 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1162 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2022-12-14 12:12:19,993 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1984 Valid, 6118 Invalid, 1164 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1162 Invalid, 1 Unknown, 0 Unchecked, 5.5s Time] [2022-12-14 12:12:19,998 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11553 states. [2022-12-14 12:12:20,714 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11553 to 11549. [2022-12-14 12:12:20,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11549 states, 7269 states have (on average 1.3327830513137984) internal successors, (9688), 7578 states have internal predecessors, (9688), 3157 states have call successors, (3157), 1128 states have call predecessors, (3157), 1120 states have return successors, (3184), 3066 states have call predecessors, (3184), 3153 states have call successors, (3184) [2022-12-14 12:12:20,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11549 states to 11549 states and 16029 transitions. [2022-12-14 12:12:20,743 INFO L78 Accepts]: Start accepts. Automaton has 11549 states and 16029 transitions. Word has length 394 [2022-12-14 12:12:20,743 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 12:12:20,743 INFO L495 AbstractCegarLoop]: Abstraction has 11549 states and 16029 transitions. [2022-12-14 12:12:20,743 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 2 states have call successors, (49), 3 states have call predecessors, (49), 1 states have return successors, (47), 2 states have call predecessors, (47), 2 states have call successors, (47) [2022-12-14 12:12:20,743 INFO L276 IsEmpty]: Start isEmpty. Operand 11549 states and 16029 transitions. [2022-12-14 12:12:20,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 406 [2022-12-14 12:12:20,747 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 12:12:20,747 INFO L195 NwaCegarLoop]: trace histogram [30, 27, 27, 27, 27, 27, 27, 15, 14, 14, 4, 4, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 12:12:20,748 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-12-14 12:12:20,748 INFO L420 AbstractCegarLoop]: === Iteration 20 === 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)] === [2022-12-14 12:12:20,748 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 12:12:20,748 INFO L85 PathProgramCache]: Analyzing trace with hash -969510636, now seen corresponding path program 1 times [2022-12-14 12:12:20,748 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 12:12:20,748 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [723660351] [2022-12-14 12:12:20,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:12:20,749 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 12:12:20,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:12:21,070 INFO L134 CoverageAnalysis]: Checked inductivity of 3391 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 3363 trivial. 0 not checked. [2022-12-14 12:12:21,070 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 12:12:21,070 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [723660351] [2022-12-14 12:12:21,070 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [723660351] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 12:12:21,070 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 12:12:21,071 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 12:12:21,071 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [252286415] [2022-12-14 12:12:21,071 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 12:12:21,071 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 12:12:21,072 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 12:12:21,072 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 12:12:21,072 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 12:12:21,072 INFO L87 Difference]: Start difference. First operand 11549 states and 16029 transitions. Second operand has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 2 states have call successors, (53), 3 states have call predecessors, (53), 1 states have return successors, (51), 2 states have call predecessors, (51), 2 states have call successors, (51) [2022-12-14 12:12:27,184 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 12:12:28,245 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 12:12:28,245 INFO L93 Difference]: Finished difference Result 11549 states and 16029 transitions. [2022-12-14 12:12:28,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 12:12:28,246 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 2 states have call successors, (53), 3 states have call predecessors, (53), 1 states have return successors, (51), 2 states have call predecessors, (51), 2 states have call successors, (51) Word has length 405 [2022-12-14 12:12:28,246 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 12:12:28,274 INFO L225 Difference]: With dead ends: 11549 [2022-12-14 12:12:28,274 INFO L226 Difference]: Without dead ends: 11363 [2022-12-14 12:12:28,278 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 [2022-12-14 12:12:28,278 INFO L413 NwaCegarLoop]: 1869 mSDtfsCounter, 2127 mSDsluCounter, 3719 mSDsCounter, 0 mSdLazyCounter, 1069 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2127 SdHoareTripleChecker+Valid, 5588 SdHoareTripleChecker+Invalid, 1071 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1069 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.3s IncrementalHoareTripleChecker+Time [2022-12-14 12:12:28,279 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2127 Valid, 5588 Invalid, 1071 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1069 Invalid, 1 Unknown, 0 Unchecked, 6.3s Time] [2022-12-14 12:12:28,286 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11363 states. [2022-12-14 12:12:29,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11363 to 11363. [2022-12-14 12:12:29,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11363 states, 7200 states have (on average 1.3309722222222222) internal successors, (9583), 7473 states have internal predecessors, (9583), 3063 states have call successors, (3063), 1096 states have call predecessors, (3063), 1098 states have return successors, (3094), 3017 states have call predecessors, (3094), 3063 states have call successors, (3094) [2022-12-14 12:12:29,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11363 states to 11363 states and 15740 transitions. [2022-12-14 12:12:29,069 INFO L78 Accepts]: Start accepts. Automaton has 11363 states and 15740 transitions. Word has length 405 [2022-12-14 12:12:29,069 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 12:12:29,069 INFO L495 AbstractCegarLoop]: Abstraction has 11363 states and 15740 transitions. [2022-12-14 12:12:29,069 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 2 states have call successors, (53), 3 states have call predecessors, (53), 1 states have return successors, (51), 2 states have call predecessors, (51), 2 states have call successors, (51) [2022-12-14 12:12:29,069 INFO L276 IsEmpty]: Start isEmpty. Operand 11363 states and 15740 transitions. [2022-12-14 12:12:29,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 462 [2022-12-14 12:12:29,075 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 12:12:29,076 INFO L195 NwaCegarLoop]: trace histogram [34, 27, 27, 27, 27, 27, 27, 13, 13, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 12:12:29,076 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-12-14 12:12:29,076 INFO L420 AbstractCegarLoop]: === Iteration 21 === 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)] === [2022-12-14 12:12:29,076 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 12:12:29,076 INFO L85 PathProgramCache]: Analyzing trace with hash -78047660, now seen corresponding path program 1 times [2022-12-14 12:12:29,076 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 12:12:29,076 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [227166331] [2022-12-14 12:12:29,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:12:29,077 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 12:12:29,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:12:29,670 INFO L134 CoverageAnalysis]: Checked inductivity of 3530 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3530 trivial. 0 not checked. [2022-12-14 12:12:29,670 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 12:12:29,670 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [227166331] [2022-12-14 12:12:29,670 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [227166331] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 12:12:29,670 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 12:12:29,670 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 12:12:29,670 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [228019735] [2022-12-14 12:12:29,671 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 12:12:29,671 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 12:12:29,671 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 12:12:29,672 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 12:12:29,672 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 12:12:29,672 INFO L87 Difference]: Start difference. First operand 11363 states and 15740 transitions. Second operand has 5 states, 5 states have (on average 20.6) internal successors, (103), 4 states have internal predecessors, (103), 2 states have call successors, (54), 3 states have call predecessors, (54), 1 states have return successors, (51), 2 states have call predecessors, (51), 2 states have call successors, (51) [2022-12-14 12:12:32,136 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.39s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 12:12:37,854 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.95s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 12:12:38,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 12:12:38,397 INFO L93 Difference]: Finished difference Result 11363 states and 15740 transitions. [2022-12-14 12:12:38,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 12:12:38,398 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.6) internal successors, (103), 4 states have internal predecessors, (103), 2 states have call successors, (54), 3 states have call predecessors, (54), 1 states have return successors, (51), 2 states have call predecessors, (51), 2 states have call successors, (51) Word has length 461 [2022-12-14 12:12:38,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 12:12:38,423 INFO L225 Difference]: With dead ends: 11363 [2022-12-14 12:12:38,424 INFO L226 Difference]: Without dead ends: 11361 [2022-12-14 12:12:38,427 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-12-14 12:12:38,427 INFO L413 NwaCegarLoop]: 1846 mSDtfsCounter, 1933 mSDsluCounter, 3862 mSDsCounter, 0 mSdLazyCounter, 1096 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1934 SdHoareTripleChecker+Valid, 5708 SdHoareTripleChecker+Invalid, 1097 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1096 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.6s IncrementalHoareTripleChecker+Time [2022-12-14 12:12:38,428 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1934 Valid, 5708 Invalid, 1097 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1096 Invalid, 0 Unknown, 0 Unchecked, 7.6s Time] [2022-12-14 12:12:38,435 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11361 states. [2022-12-14 12:12:39,201 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11361 to 11361. [2022-12-14 12:12:39,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11361 states, 7199 states have (on average 1.3293512987914988) internal successors, (9570), 7471 states have internal predecessors, (9570), 3063 states have call successors, (3063), 1096 states have call predecessors, (3063), 1098 states have return successors, (3094), 3017 states have call predecessors, (3094), 3063 states have call successors, (3094) [2022-12-14 12:12:39,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11361 states to 11361 states and 15727 transitions. [2022-12-14 12:12:39,230 INFO L78 Accepts]: Start accepts. Automaton has 11361 states and 15727 transitions. Word has length 461 [2022-12-14 12:12:39,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 12:12:39,230 INFO L495 AbstractCegarLoop]: Abstraction has 11361 states and 15727 transitions. [2022-12-14 12:12:39,231 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.6) internal successors, (103), 4 states have internal predecessors, (103), 2 states have call successors, (54), 3 states have call predecessors, (54), 1 states have return successors, (51), 2 states have call predecessors, (51), 2 states have call successors, (51) [2022-12-14 12:12:39,231 INFO L276 IsEmpty]: Start isEmpty. Operand 11361 states and 15727 transitions. [2022-12-14 12:12:39,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 477 [2022-12-14 12:12:39,238 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 12:12:39,238 INFO L195 NwaCegarLoop]: trace histogram [34, 27, 27, 27, 27, 27, 27, 14, 14, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 12:12:39,238 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-12-14 12:12:39,238 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_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)] === [2022-12-14 12:12:39,238 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 12:12:39,238 INFO L85 PathProgramCache]: Analyzing trace with hash 82550608, now seen corresponding path program 1 times [2022-12-14 12:12:39,239 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 12:12:39,239 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [757226452] [2022-12-14 12:12:39,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:12:39,239 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 12:12:39,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:12:39,504 INFO L134 CoverageAnalysis]: Checked inductivity of 3569 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3569 trivial. 0 not checked. [2022-12-14 12:12:39,504 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 12:12:39,504 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [757226452] [2022-12-14 12:12:39,504 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [757226452] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 12:12:39,504 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 12:12:39,504 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 12:12:39,505 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [851669337] [2022-12-14 12:12:39,505 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 12:12:39,505 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 12:12:39,505 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 12:12:39,505 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 12:12:39,505 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 12:12:39,506 INFO L87 Difference]: Start difference. First operand 11361 states and 15727 transitions. Second operand has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 2 states have call successors, (57), 2 states have call predecessors, (57), 1 states have return successors, (54), 1 states have call predecessors, (54), 1 states have call successors, (54) [2022-12-14 12:12:41,387 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 12:12:43,976 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 12:12:43,976 INFO L93 Difference]: Finished difference Result 22499 states and 31167 transitions. [2022-12-14 12:12:43,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 12:12:43,977 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 2 states have call successors, (57), 2 states have call predecessors, (57), 1 states have return successors, (54), 1 states have call predecessors, (54), 1 states have call successors, (54) Word has length 476 [2022-12-14 12:12:43,977 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 12:12:44,005 INFO L225 Difference]: With dead ends: 22499 [2022-12-14 12:12:44,005 INFO L226 Difference]: Without dead ends: 11381 [2022-12-14 12:12:44,025 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 12:12:44,026 INFO L413 NwaCegarLoop]: 1815 mSDtfsCounter, 5 mSDsluCounter, 1811 mSDsCounter, 0 mSdLazyCounter, 700 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 3626 SdHoareTripleChecker+Invalid, 700 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 700 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2022-12-14 12:12:44,026 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 3626 Invalid, 700 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 700 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2022-12-14 12:12:44,033 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11381 states. [2022-12-14 12:12:44,780 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11381 to 11365. [2022-12-14 12:12:44,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11365 states, 7203 states have (on average 1.3291684020546994) internal successors, (9574), 7475 states have internal predecessors, (9574), 3063 states have call successors, (3063), 1096 states have call predecessors, (3063), 1098 states have return successors, (3094), 3017 states have call predecessors, (3094), 3063 states have call successors, (3094) [2022-12-14 12:12:44,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11365 states to 11365 states and 15731 transitions. [2022-12-14 12:12:44,809 INFO L78 Accepts]: Start accepts. Automaton has 11365 states and 15731 transitions. Word has length 476 [2022-12-14 12:12:44,810 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 12:12:44,810 INFO L495 AbstractCegarLoop]: Abstraction has 11365 states and 15731 transitions. [2022-12-14 12:12:44,810 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 2 states have call successors, (57), 2 states have call predecessors, (57), 1 states have return successors, (54), 1 states have call predecessors, (54), 1 states have call successors, (54) [2022-12-14 12:12:44,810 INFO L276 IsEmpty]: Start isEmpty. Operand 11365 states and 15731 transitions. [2022-12-14 12:12:44,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 479 [2022-12-14 12:12:44,817 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 12:12:44,818 INFO L195 NwaCegarLoop]: trace histogram [34, 27, 27, 27, 27, 27, 27, 14, 14, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 12:12:44,818 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-12-14 12:12:44,818 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_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)] === [2022-12-14 12:12:44,818 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 12:12:44,818 INFO L85 PathProgramCache]: Analyzing trace with hash 72433946, now seen corresponding path program 1 times [2022-12-14 12:12:44,818 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 12:12:44,818 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [657871579] [2022-12-14 12:12:44,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:12:44,819 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 12:12:44,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:12:45,102 INFO L134 CoverageAnalysis]: Checked inductivity of 3570 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3569 trivial. 0 not checked. [2022-12-14 12:12:45,102 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 12:12:45,102 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [657871579] [2022-12-14 12:12:45,103 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [657871579] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 12:12:45,103 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1097377857] [2022-12-14 12:12:45,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:12:45,103 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 12:12:45,103 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eee09803-36c7-442d-be5a-d68d648daca2/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 12:12:45,104 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eee09803-36c7-442d-be5a-d68d648daca2/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 12:12:45,105 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eee09803-36c7-442d-be5a-d68d648daca2/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-14 12:12:45,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:12:45,899 INFO L263 TraceCheckSpWp]: Trace formula consists of 4426 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 12:12:45,911 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 12:12:45,969 INFO L134 CoverageAnalysis]: Checked inductivity of 3570 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3569 trivial. 0 not checked. [2022-12-14 12:12:45,969 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 12:12:46,181 INFO L134 CoverageAnalysis]: Checked inductivity of 3570 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3569 trivial. 0 not checked. [2022-12-14 12:12:46,182 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1097377857] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 12:12:46,182 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1031191361] [2022-12-14 12:12:46,200 INFO L159 IcfgInterpreter]: Started Sifa with 179 locations of interest [2022-12-14 12:12:46,200 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 12:12:46,203 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 12:12:46,207 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 12:12:46,208 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs