./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-mutex_drivers-media-radio-wl128x-fm_drv.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 38b53e6a Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd9efa87-b7b9-4505-b28b-2f5a44abedde/bin/utaipan-ByfvJB40ur/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd9efa87-b7b9-4505-b28b-2f5a44abedde/bin/utaipan-ByfvJB40ur/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd9efa87-b7b9-4505-b28b-2f5a44abedde/bin/utaipan-ByfvJB40ur/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd9efa87-b7b9-4505-b28b-2f5a44abedde/bin/utaipan-ByfvJB40ur/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-radio-wl128x-fm_drv.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd9efa87-b7b9-4505-b28b-2f5a44abedde/bin/utaipan-ByfvJB40ur/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd9efa87-b7b9-4505-b28b-2f5a44abedde/bin/utaipan-ByfvJB40ur --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash f6012e8ec841b08462bbd246c354a43139de7ccb42d1c6282a50e12dbc313f31 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-38b53e6 [2022-11-25 23:57:53,764 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 23:57:53,767 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 23:57:53,809 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 23:57:53,812 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 23:57:53,816 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 23:57:53,819 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 23:57:53,823 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 23:57:53,828 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 23:57:53,836 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 23:57:53,837 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 23:57:53,840 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 23:57:53,840 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 23:57:53,842 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 23:57:53,844 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 23:57:53,846 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 23:57:53,848 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 23:57:53,849 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 23:57:53,851 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 23:57:53,855 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 23:57:53,859 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 23:57:53,862 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 23:57:53,863 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 23:57:53,864 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 23:57:53,872 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 23:57:53,873 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 23:57:53,873 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 23:57:53,875 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 23:57:53,876 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 23:57:53,877 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 23:57:53,877 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 23:57:53,878 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 23:57:53,880 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 23:57:53,881 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 23:57:53,882 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 23:57:53,882 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 23:57:53,883 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 23:57:53,883 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 23:57:53,884 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 23:57:53,885 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 23:57:53,898 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 23:57:53,899 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd9efa87-b7b9-4505-b28b-2f5a44abedde/bin/utaipan-ByfvJB40ur/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-25 23:57:53,930 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 23:57:53,931 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 23:57:53,931 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 23:57:53,931 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 23:57:53,932 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 23:57:53,932 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 23:57:53,932 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-25 23:57:53,932 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-25 23:57:53,932 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-25 23:57:53,933 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-25 23:57:53,933 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-25 23:57:53,933 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-25 23:57:53,933 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-25 23:57:53,933 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-25 23:57:53,933 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-25 23:57:53,934 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-25 23:57:53,934 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-25 23:57:53,934 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-25 23:57:53,935 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 23:57:53,935 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 23:57:53,935 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 23:57:53,935 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 23:57:53,935 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 23:57:53,936 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 23:57:53,936 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 23:57:53,936 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 23:57:53,936 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 23:57:53,936 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 23:57:53,937 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 23:57:53,937 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 23:57:53,937 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 23:57:53,937 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-25 23:57:53,937 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 23:57:53,938 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 23:57:53,938 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-25 23:57:53,938 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-25 23:57:53,938 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 23:57:53,938 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-25 23:57:53,938 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_bd9efa87-b7b9-4505-b28b-2f5a44abedde/bin/utaipan-ByfvJB40ur/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd9efa87-b7b9-4505-b28b-2f5a44abedde/bin/utaipan-ByfvJB40ur Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f6012e8ec841b08462bbd246c354a43139de7ccb42d1c6282a50e12dbc313f31 [2022-11-25 23:57:54,251 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 23:57:54,316 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 23:57:54,321 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 23:57:54,322 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 23:57:54,323 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 23:57:54,324 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd9efa87-b7b9-4505-b28b-2f5a44abedde/bin/utaipan-ByfvJB40ur/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-radio-wl128x-fm_drv.cil.i [2022-11-25 23:57:57,443 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 23:57:58,247 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 23:57:58,247 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd9efa87-b7b9-4505-b28b-2f5a44abedde/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-radio-wl128x-fm_drv.cil.i [2022-11-25 23:57:58,308 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd9efa87-b7b9-4505-b28b-2f5a44abedde/bin/utaipan-ByfvJB40ur/data/23a8cebc9/6d4c7fa25fc445bdb3c1d0608d029b3a/FLAGf5d6565c5 [2022-11-25 23:57:58,331 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd9efa87-b7b9-4505-b28b-2f5a44abedde/bin/utaipan-ByfvJB40ur/data/23a8cebc9/6d4c7fa25fc445bdb3c1d0608d029b3a [2022-11-25 23:57:58,335 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 23:57:58,337 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 23:57:58,339 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 23:57:58,339 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 23:57:58,344 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 23:57:58,345 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 11:57:58" (1/1) ... [2022-11-25 23:57:58,346 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@58882f3e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:57:58, skipping insertion in model container [2022-11-25 23:57:58,346 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 11:57:58" (1/1) ... [2022-11-25 23:57:58,355 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 23:57:58,539 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 23:57:59,368 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_unlock_irqrestore [2022-11-25 23:57:59,414 WARN L623 FunctionHandler]: Unknown extern function __init_waitqueue_head [2022-11-25 23:57:59,522 WARN L623 FunctionHandler]: Unknown extern function might_fault [2022-11-25 23:57:59,524 WARN L623 FunctionHandler]: Unknown extern function _copy_to_user [2022-11-25 23:57:59,526 WARN L623 FunctionHandler]: Unknown extern function _copy_to_user [2022-11-25 23:57:59,527 WARN L623 FunctionHandler]: Unknown extern function __copy_to_user_overflow [2022-11-25 23:57:59,587 WARN L623 FunctionHandler]: Unknown extern function __alloc_skb [2022-11-25 23:57:59,615 WARN L623 FunctionHandler]: Unknown extern function __raw_spin_lock_init [2022-11-25 23:57:59,659 WARN L623 FunctionHandler]: Unknown extern function __tasklet_schedule [2022-11-25 23:57:59,998 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:58:00,001 WARN L623 FunctionHandler]: Unknown extern function kfree_skb [2022-11-25 23:58:00,009 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:58:00,011 WARN L623 FunctionHandler]: Unknown extern function kfree_skb [2022-11-25 23:58:00,012 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irqsave [2022-11-25 23:58:00,013 WARN L623 FunctionHandler]: Unknown extern function complete [2022-11-25 23:58:00,019 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:58:00,020 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irqsave [2022-11-25 23:58:00,023 WARN L623 FunctionHandler]: Unknown extern function kfree_skb [2022-11-25 23:58:00,025 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:58:00,034 WARN L623 FunctionHandler]: Unknown extern function skb_dequeue [2022-11-25 23:58:00,054 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:58:00,056 WARN L623 FunctionHandler]: Unknown extern function skb_dequeue [2022-11-25 23:58:00,058 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:58:00,060 WARN L623 FunctionHandler]: Unknown extern function kfree_skb [2022-11-25 23:58:00,064 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:58:00,071 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:58:00,076 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:58:00,079 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:58:00,082 WARN L623 FunctionHandler]: Unknown extern function skb_put [2022-11-25 23:58:00,090 WARN L623 FunctionHandler]: Unknown extern function skb_put [2022-11-25 23:58:00,098 WARN L623 FunctionHandler]: Unknown extern function skb_queue_tail [2022-11-25 23:58:00,101 WARN L623 FunctionHandler]: Unknown extern function wait_for_completion_timeout [2022-11-25 23:58:00,106 WARN L623 FunctionHandler]: Unknown extern function jiffies_to_msecs [2022-11-25 23:58:00,107 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:58:00,108 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:58:00,109 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irqsave [2022-11-25 23:58:00,110 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:58:00,114 WARN L623 FunctionHandler]: Unknown extern function kfree_skb [2022-11-25 23:58:00,115 WARN L623 FunctionHandler]: Unknown extern function skb_pull [2022-11-25 23:58:00,116 WARN L623 FunctionHandler]: Unknown extern function kfree_skb [2022-11-25 23:58:00,128 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irqsave [2022-11-25 23:58:00,130 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:58:00,145 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:58:00,148 WARN L623 FunctionHandler]: Unknown extern function skb_pull [2022-11-25 23:58:00,153 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:58:00,193 WARN L623 FunctionHandler]: Unknown extern function skb_pull [2022-11-25 23:58:00,205 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irqsave [2022-11-25 23:58:00,214 WARN L623 FunctionHandler]: Unknown extern function __wake_up [2022-11-25 23:58:00,219 WARN L623 FunctionHandler]: Unknown extern function complete [2022-11-25 23:58:00,221 WARN L623 FunctionHandler]: Unknown extern function complete [2022-11-25 23:58:00,237 WARN L623 FunctionHandler]: Unknown extern function skb_pull [2022-11-25 23:58:00,245 WARN L623 FunctionHandler]: Unknown extern function prepare_to_wait_event [2022-11-25 23:58:00,246 WARN L623 FunctionHandler]: Unknown extern function schedule [2022-11-25 23:58:00,247 WARN L623 FunctionHandler]: Unknown extern function finish_wait [2022-11-25 23:58:00,248 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irqsave [2022-11-25 23:58:00,252 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:58:00,253 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:58:00,263 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:58:00,269 WARN L623 FunctionHandler]: Unknown extern function request_firmware [2022-11-25 23:58:00,270 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:58:00,271 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:58:00,273 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-25 23:58:00,275 WARN L623 FunctionHandler]: Unknown extern function release_firmware [2022-11-25 23:58:00,284 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:58:00,285 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:58:00,286 WARN L623 FunctionHandler]: Unknown extern function msleep [2022-11-25 23:58:00,287 WARN L623 FunctionHandler]: Unknown extern function sprintf [2022-11-25 23:58:00,291 WARN L623 FunctionHandler]: Unknown extern function sprintf [2022-11-25 23:58:00,292 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:58:00,294 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:58:00,295 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:58:00,295 WARN L623 FunctionHandler]: Unknown extern function msleep [2022-11-25 23:58:00,296 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:58:00,297 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:58:00,298 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:58:00,299 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:58:00,305 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:58:00,309 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:58:00,310 WARN L623 FunctionHandler]: Unknown extern function skb_push [2022-11-25 23:58:00,311 WARN L623 FunctionHandler]: Unknown extern function skb_queue_tail [2022-11-25 23:58:00,316 WARN L623 FunctionHandler]: Unknown extern function complete [2022-11-25 23:58:00,323 WARN L623 FunctionHandler]: Unknown extern function st_register [2022-11-25 23:58:00,324 WARN L623 FunctionHandler]: Unknown extern function msecs_to_jiffies [2022-11-25 23:58:00,325 WARN L623 FunctionHandler]: Unknown extern function wait_for_completion_timeout [2022-11-25 23:58:00,326 WARN L623 FunctionHandler]: Unknown extern function msecs_to_jiffies [2022-11-25 23:58:00,327 WARN L623 FunctionHandler]: Unknown extern function jiffies_to_msecs [2022-11-25 23:58:00,327 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:58:00,329 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:58:00,330 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:58:00,331 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:58:00,331 WARN L623 FunctionHandler]: Unknown extern function st_unregister [2022-11-25 23:58:00,332 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:58:00,333 WARN L623 FunctionHandler]: Unknown extern function __raw_spin_lock_init [2022-11-25 23:58:00,334 WARN L623 FunctionHandler]: Unknown extern function __raw_spin_lock_init [2022-11-25 23:58:00,335 WARN L623 FunctionHandler]: Unknown extern function tasklet_init [2022-11-25 23:58:00,335 WARN L623 FunctionHandler]: Unknown extern function tasklet_init [2022-11-25 23:58:00,336 WARN L623 FunctionHandler]: Unknown extern function init_timer_key [2022-11-25 23:58:00,339 WARN L623 FunctionHandler]: Unknown extern function __init_waitqueue_head [2022-11-25 23:58:00,342 WARN L623 FunctionHandler]: Unknown extern function __wake_up [2022-11-25 23:58:00,342 WARN L623 FunctionHandler]: Unknown extern function tasklet_kill [2022-11-25 23:58:00,343 WARN L623 FunctionHandler]: Unknown extern function tasklet_kill [2022-11-25 23:58:00,344 WARN L623 FunctionHandler]: Unknown extern function skb_queue_purge [2022-11-25 23:58:00,344 WARN L623 FunctionHandler]: Unknown extern function skb_queue_purge [2022-11-25 23:58:00,345 WARN L623 FunctionHandler]: Unknown extern function st_unregister [2022-11-25 23:58:00,347 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:58:00,369 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:58:00,371 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:58:00,372 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 23:58:00,373 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 23:58:00,377 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 23:58:00,378 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 23:58:00,514 WARN L623 FunctionHandler]: Unknown extern function ldv_switch_to_interrupt_context [2022-11-25 23:58:00,515 WARN L623 FunctionHandler]: Unknown extern function ldv_switch_to_process_context [2022-11-25 23:58:00,516 WARN L623 FunctionHandler]: Unknown extern function mod_timer [2022-11-25 23:58:00,517 WARN L623 FunctionHandler]: Unknown extern function del_timer [2022-11-25 23:58:00,517 WARN L623 FunctionHandler]: Unknown extern function mod_timer [2022-11-25 23:58:00,586 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:58:00,596 WARN L623 FunctionHandler]: Unknown extern function wait_for_completion_timeout [2022-11-25 23:58:00,597 WARN L623 FunctionHandler]: Unknown extern function jiffies_to_msecs [2022-11-25 23:58:00,597 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:58:00,598 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:58:00,611 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:58:00,624 WARN L623 FunctionHandler]: Unknown extern function wait_for_completion_timeout [2022-11-25 23:58:00,626 WARN L623 FunctionHandler]: Unknown extern function jiffies_to_msecs [2022-11-25 23:58:00,626 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:58:00,629 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:58:00,637 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:58:00,639 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:58:00,641 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:58:00,648 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:58:00,655 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:58:00,656 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:58:00,658 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:58:00,659 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:58:00,661 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:58:00,662 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:58:00,664 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:58:00,665 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:58:00,667 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:58:00,668 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:58:00,672 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:58:00,674 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:58:00,675 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:58:00,676 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:58:00,678 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:58:00,727 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:58:00,738 WARN L623 FunctionHandler]: Unknown extern function wait_for_completion_timeout [2022-11-25 23:58:00,739 WARN L623 FunctionHandler]: Unknown extern function jiffies_to_msecs [2022-11-25 23:58:00,739 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:58:00,829 WARN L623 FunctionHandler]: Unknown extern function might_fault [2022-11-25 23:58:00,830 WARN L623 FunctionHandler]: Unknown extern function _copy_from_user [2022-11-25 23:58:00,831 WARN L623 FunctionHandler]: Unknown extern function _copy_from_user [2022-11-25 23:58:00,831 WARN L623 FunctionHandler]: Unknown extern function __copy_from_user_overflow [2022-11-25 23:58:00,852 WARN L623 FunctionHandler]: Unknown extern function __video_register_device [2022-11-25 23:58:00,881 WARN L623 FunctionHandler]: Unknown extern function video_devdata [2022-11-25 23:58:00,911 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:58:00,912 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:58:00,913 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:58:00,928 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:58:00,929 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:58:00,930 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:58:00,935 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:58:00,936 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:58:00,941 WARN L623 FunctionHandler]: Unknown extern function strlcpy [2022-11-25 23:58:00,941 WARN L623 FunctionHandler]: Unknown extern function strlcpy [2022-11-25 23:58:00,942 WARN L623 FunctionHandler]: Unknown extern function sprintf [2022-11-25 23:58:00,948 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:58:00,975 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:58:00,976 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:58:00,977 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:58:00,982 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:58:01,032 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:58:01,033 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:58:01,043 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:58:01,044 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:58:01,045 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:58:01,051 WARN L623 FunctionHandler]: Unknown extern function strlcpy [2022-11-25 23:58:01,051 WARN L623 FunctionHandler]: Unknown extern function v4l2_device_register [2022-11-25 23:58:01,052 WARN L623 FunctionHandler]: Unknown extern function __mutex_init [2022-11-25 23:58:01,052 WARN L623 FunctionHandler]: Unknown extern function video_device_alloc [2022-11-25 23:58:01,053 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:58:01,054 WARN L623 FunctionHandler]: Unknown extern function video_device_release [2022-11-25 23:58:01,055 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:58:01,055 WARN L623 FunctionHandler]: Unknown extern function v4l2_ctrl_handler_init_class [2022-11-25 23:58:01,056 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:58:01,057 WARN L623 FunctionHandler]: Unknown extern function v4l2_ctrl_handler_free [2022-11-25 23:58:01,057 WARN L623 FunctionHandler]: Unknown extern function v4l2_ctrl_new_std [2022-11-25 23:58:01,057 WARN L623 FunctionHandler]: Unknown extern function v4l2_ctrl_new_std [2022-11-25 23:58:01,058 WARN L623 FunctionHandler]: Unknown extern function v4l2_ctrl_new_std_menu [2022-11-25 23:58:01,058 WARN L623 FunctionHandler]: Unknown extern function v4l2_ctrl_new_std [2022-11-25 23:58:01,059 WARN L623 FunctionHandler]: Unknown extern function v4l2_ctrl_new_std [2022-11-25 23:58:01,060 WARN L623 FunctionHandler]: Unknown extern function v4l2_ctrl_handler_free [2022-11-25 23:58:01,060 WARN L623 FunctionHandler]: Unknown extern function video_unregister_device [2022-11-25 23:58:01,060 WARN L623 FunctionHandler]: Unknown extern function v4l2_device_unregister [2022-11-25 23:58:01,130 WARN L623 FunctionHandler]: Unknown extern function video_ioctl2 [2022-11-25 23:58:01,133 WARN L623 FunctionHandler]: Unknown extern function video_device_release [2022-11-25 23:58:01,187 WARN L623 FunctionHandler]: Unknown extern function ldv_check_alloc_flags [2022-11-25 23:58:01,188 WARN L623 FunctionHandler]: Unknown extern function ldv_after_alloc [2022-11-25 23:58:01,197 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-25 23:58:01,432 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_bd9efa87-b7b9-4505-b28b-2f5a44abedde/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-radio-wl128x-fm_drv.cil.i[314540,314553] [2022-11-25 23:58:01,437 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_bd9efa87-b7b9-4505-b28b-2f5a44abedde/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-radio-wl128x-fm_drv.cil.i[314706,314719] [2022-11-25 23:58:01,438 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_bd9efa87-b7b9-4505-b28b-2f5a44abedde/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-radio-wl128x-fm_drv.cil.i[314870,314883] [2022-11-25 23:58:01,439 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_bd9efa87-b7b9-4505-b28b-2f5a44abedde/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-radio-wl128x-fm_drv.cil.i[315035,315048] [2022-11-25 23:58:01,455 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 23:58:01,521 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 23:58:01,642 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_unlock_irqrestore [2022-11-25 23:58:01,644 WARN L623 FunctionHandler]: Unknown extern function __init_waitqueue_head [2022-11-25 23:58:01,645 WARN L623 FunctionHandler]: Unknown extern function might_fault [2022-11-25 23:58:01,646 WARN L623 FunctionHandler]: Unknown extern function _copy_to_user [2022-11-25 23:58:01,646 WARN L623 FunctionHandler]: Unknown extern function _copy_to_user [2022-11-25 23:58:01,647 WARN L623 FunctionHandler]: Unknown extern function __copy_to_user_overflow [2022-11-25 23:58:01,647 WARN L623 FunctionHandler]: Unknown extern function __alloc_skb [2022-11-25 23:58:01,650 WARN L623 FunctionHandler]: Unknown extern function __raw_spin_lock_init [2022-11-25 23:58:01,651 WARN L623 FunctionHandler]: Unknown extern function __tasklet_schedule [2022-11-25 23:58:01,666 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:58:01,667 WARN L623 FunctionHandler]: Unknown extern function kfree_skb [2022-11-25 23:58:01,668 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:58:01,674 WARN L623 FunctionHandler]: Unknown extern function kfree_skb [2022-11-25 23:58:01,674 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irqsave [2022-11-25 23:58:01,675 WARN L623 FunctionHandler]: Unknown extern function complete [2022-11-25 23:58:01,676 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:58:01,676 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irqsave [2022-11-25 23:58:01,716 WARN L623 FunctionHandler]: Unknown extern function kfree_skb [2022-11-25 23:58:01,716 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:58:01,717 WARN L623 FunctionHandler]: Unknown extern function skb_dequeue [2022-11-25 23:58:01,718 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:58:01,719 WARN L623 FunctionHandler]: Unknown extern function skb_dequeue [2022-11-25 23:58:01,719 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:58:01,720 WARN L623 FunctionHandler]: Unknown extern function kfree_skb [2022-11-25 23:58:01,721 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:58:01,722 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:58:01,723 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:58:01,724 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:58:01,725 WARN L623 FunctionHandler]: Unknown extern function skb_put [2022-11-25 23:58:01,727 WARN L623 FunctionHandler]: Unknown extern function skb_put [2022-11-25 23:58:01,728 WARN L623 FunctionHandler]: Unknown extern function skb_queue_tail [2022-11-25 23:58:01,729 WARN L623 FunctionHandler]: Unknown extern function wait_for_completion_timeout [2022-11-25 23:58:01,729 WARN L623 FunctionHandler]: Unknown extern function jiffies_to_msecs [2022-11-25 23:58:01,730 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:58:01,731 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:58:01,731 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irqsave [2022-11-25 23:58:01,732 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:58:01,733 WARN L623 FunctionHandler]: Unknown extern function kfree_skb [2022-11-25 23:58:01,733 WARN L623 FunctionHandler]: Unknown extern function skb_pull [2022-11-25 23:58:01,734 WARN L623 FunctionHandler]: Unknown extern function kfree_skb [2022-11-25 23:58:01,735 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irqsave [2022-11-25 23:58:01,736 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:58:01,738 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:58:01,740 WARN L623 FunctionHandler]: Unknown extern function skb_pull [2022-11-25 23:58:01,741 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:58:01,747 WARN L623 FunctionHandler]: Unknown extern function skb_pull [2022-11-25 23:58:01,751 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irqsave [2022-11-25 23:58:01,754 WARN L623 FunctionHandler]: Unknown extern function __wake_up [2022-11-25 23:58:01,756 WARN L623 FunctionHandler]: Unknown extern function complete [2022-11-25 23:58:01,757 WARN L623 FunctionHandler]: Unknown extern function complete [2022-11-25 23:58:01,763 WARN L623 FunctionHandler]: Unknown extern function skb_pull [2022-11-25 23:58:01,773 WARN L623 FunctionHandler]: Unknown extern function prepare_to_wait_event [2022-11-25 23:58:01,774 WARN L623 FunctionHandler]: Unknown extern function schedule [2022-11-25 23:58:01,775 WARN L623 FunctionHandler]: Unknown extern function finish_wait [2022-11-25 23:58:01,776 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irqsave [2022-11-25 23:58:01,778 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:58:01,779 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:58:01,783 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:58:01,785 WARN L623 FunctionHandler]: Unknown extern function request_firmware [2022-11-25 23:58:01,785 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:58:01,786 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:58:01,788 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-25 23:58:01,789 WARN L623 FunctionHandler]: Unknown extern function release_firmware [2022-11-25 23:58:01,791 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:58:01,791 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:58:01,792 WARN L623 FunctionHandler]: Unknown extern function msleep [2022-11-25 23:58:01,793 WARN L623 FunctionHandler]: Unknown extern function sprintf [2022-11-25 23:58:01,795 WARN L623 FunctionHandler]: Unknown extern function sprintf [2022-11-25 23:58:01,797 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:58:01,798 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:58:01,799 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:58:01,799 WARN L623 FunctionHandler]: Unknown extern function msleep [2022-11-25 23:58:01,800 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:58:01,800 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:58:01,801 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:58:01,802 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:58:01,803 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:58:01,804 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:58:01,804 WARN L623 FunctionHandler]: Unknown extern function skb_push [2022-11-25 23:58:01,805 WARN L623 FunctionHandler]: Unknown extern function skb_queue_tail [2022-11-25 23:58:01,805 WARN L623 FunctionHandler]: Unknown extern function complete [2022-11-25 23:58:01,807 WARN L623 FunctionHandler]: Unknown extern function st_register [2022-11-25 23:58:01,808 WARN L623 FunctionHandler]: Unknown extern function msecs_to_jiffies [2022-11-25 23:58:01,809 WARN L623 FunctionHandler]: Unknown extern function wait_for_completion_timeout [2022-11-25 23:58:01,809 WARN L623 FunctionHandler]: Unknown extern function msecs_to_jiffies [2022-11-25 23:58:01,810 WARN L623 FunctionHandler]: Unknown extern function jiffies_to_msecs [2022-11-25 23:58:01,810 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:58:01,811 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:58:01,811 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:58:01,812 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:58:01,813 WARN L623 FunctionHandler]: Unknown extern function st_unregister [2022-11-25 23:58:01,813 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:58:01,814 WARN L623 FunctionHandler]: Unknown extern function __raw_spin_lock_init [2022-11-25 23:58:01,815 WARN L623 FunctionHandler]: Unknown extern function __raw_spin_lock_init [2022-11-25 23:58:01,815 WARN L623 FunctionHandler]: Unknown extern function tasklet_init [2022-11-25 23:58:01,815 WARN L623 FunctionHandler]: Unknown extern function tasklet_init [2022-11-25 23:58:01,816 WARN L623 FunctionHandler]: Unknown extern function init_timer_key [2022-11-25 23:58:01,817 WARN L623 FunctionHandler]: Unknown extern function __init_waitqueue_head [2022-11-25 23:58:01,819 WARN L623 FunctionHandler]: Unknown extern function __wake_up [2022-11-25 23:58:01,819 WARN L623 FunctionHandler]: Unknown extern function tasklet_kill [2022-11-25 23:58:01,820 WARN L623 FunctionHandler]: Unknown extern function tasklet_kill [2022-11-25 23:58:01,820 WARN L623 FunctionHandler]: Unknown extern function skb_queue_purge [2022-11-25 23:58:01,820 WARN L623 FunctionHandler]: Unknown extern function skb_queue_purge [2022-11-25 23:58:01,821 WARN L623 FunctionHandler]: Unknown extern function st_unregister [2022-11-25 23:58:01,822 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:58:01,823 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:58:01,824 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:58:01,829 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 23:58:01,830 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 23:58:01,831 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 23:58:01,831 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 23:58:01,845 WARN L623 FunctionHandler]: Unknown extern function ldv_switch_to_interrupt_context [2022-11-25 23:58:01,846 WARN L623 FunctionHandler]: Unknown extern function ldv_switch_to_process_context [2022-11-25 23:58:01,846 WARN L623 FunctionHandler]: Unknown extern function mod_timer [2022-11-25 23:58:01,847 WARN L623 FunctionHandler]: Unknown extern function del_timer [2022-11-25 23:58:01,848 WARN L623 FunctionHandler]: Unknown extern function mod_timer [2022-11-25 23:58:01,850 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:58:01,852 WARN L623 FunctionHandler]: Unknown extern function wait_for_completion_timeout [2022-11-25 23:58:01,853 WARN L623 FunctionHandler]: Unknown extern function jiffies_to_msecs [2022-11-25 23:58:01,853 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:58:01,854 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:58:01,857 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:58:01,860 WARN L623 FunctionHandler]: Unknown extern function wait_for_completion_timeout [2022-11-25 23:58:01,860 WARN L623 FunctionHandler]: Unknown extern function jiffies_to_msecs [2022-11-25 23:58:01,861 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:58:01,864 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:58:01,865 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:58:01,867 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:58:01,868 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:58:01,870 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:58:01,873 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:58:01,874 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:58:01,875 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:58:01,877 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:58:01,878 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:58:01,879 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:58:01,880 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:58:01,882 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:58:01,883 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:58:01,884 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:58:01,888 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:58:01,889 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:58:01,891 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:58:01,892 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:58:01,893 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:58:01,901 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:58:01,904 WARN L623 FunctionHandler]: Unknown extern function wait_for_completion_timeout [2022-11-25 23:58:01,905 WARN L623 FunctionHandler]: Unknown extern function jiffies_to_msecs [2022-11-25 23:58:01,905 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:58:01,911 WARN L623 FunctionHandler]: Unknown extern function might_fault [2022-11-25 23:58:01,912 WARN L623 FunctionHandler]: Unknown extern function _copy_from_user [2022-11-25 23:58:01,912 WARN L623 FunctionHandler]: Unknown extern function _copy_from_user [2022-11-25 23:58:01,913 WARN L623 FunctionHandler]: Unknown extern function __copy_from_user_overflow [2022-11-25 23:58:01,913 WARN L623 FunctionHandler]: Unknown extern function __video_register_device [2022-11-25 23:58:01,914 WARN L623 FunctionHandler]: Unknown extern function video_devdata [2022-11-25 23:58:01,916 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:58:01,916 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:58:01,917 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:58:01,920 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:58:01,921 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:58:01,921 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:58:01,923 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:58:01,923 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:58:01,924 WARN L623 FunctionHandler]: Unknown extern function strlcpy [2022-11-25 23:58:01,924 WARN L623 FunctionHandler]: Unknown extern function strlcpy [2022-11-25 23:58:01,925 WARN L623 FunctionHandler]: Unknown extern function sprintf [2022-11-25 23:58:01,927 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:58:01,935 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:58:01,935 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:58:01,936 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:58:01,936 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:58:01,938 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:58:01,939 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:58:01,941 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:58:01,941 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:58:01,942 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:58:01,947 WARN L623 FunctionHandler]: Unknown extern function strlcpy [2022-11-25 23:58:01,948 WARN L623 FunctionHandler]: Unknown extern function v4l2_device_register [2022-11-25 23:58:01,949 WARN L623 FunctionHandler]: Unknown extern function __mutex_init [2022-11-25 23:58:01,949 WARN L623 FunctionHandler]: Unknown extern function video_device_alloc [2022-11-25 23:58:01,949 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:58:01,958 WARN L623 FunctionHandler]: Unknown extern function video_device_release [2022-11-25 23:58:01,958 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:58:01,960 WARN L623 FunctionHandler]: Unknown extern function v4l2_ctrl_handler_init_class [2022-11-25 23:58:01,960 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:58:01,961 WARN L623 FunctionHandler]: Unknown extern function v4l2_ctrl_handler_free [2022-11-25 23:58:01,961 WARN L623 FunctionHandler]: Unknown extern function v4l2_ctrl_new_std [2022-11-25 23:58:01,961 WARN L623 FunctionHandler]: Unknown extern function v4l2_ctrl_new_std [2022-11-25 23:58:01,962 WARN L623 FunctionHandler]: Unknown extern function v4l2_ctrl_new_std_menu [2022-11-25 23:58:01,962 WARN L623 FunctionHandler]: Unknown extern function v4l2_ctrl_new_std [2022-11-25 23:58:01,963 WARN L623 FunctionHandler]: Unknown extern function v4l2_ctrl_new_std [2022-11-25 23:58:01,964 WARN L623 FunctionHandler]: Unknown extern function v4l2_ctrl_handler_free [2022-11-25 23:58:01,964 WARN L623 FunctionHandler]: Unknown extern function video_unregister_device [2022-11-25 23:58:01,964 WARN L623 FunctionHandler]: Unknown extern function v4l2_device_unregister [2022-11-25 23:58:01,968 WARN L623 FunctionHandler]: Unknown extern function video_ioctl2 [2022-11-25 23:58:01,971 WARN L623 FunctionHandler]: Unknown extern function video_device_release [2022-11-25 23:58:01,981 WARN L623 FunctionHandler]: Unknown extern function ldv_check_alloc_flags [2022-11-25 23:58:01,982 WARN L623 FunctionHandler]: Unknown extern function ldv_after_alloc [2022-11-25 23:58:01,983 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-25 23:58:01,999 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_bd9efa87-b7b9-4505-b28b-2f5a44abedde/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-radio-wl128x-fm_drv.cil.i[314540,314553] [2022-11-25 23:58:01,999 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_bd9efa87-b7b9-4505-b28b-2f5a44abedde/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-radio-wl128x-fm_drv.cil.i[314706,314719] [2022-11-25 23:58:02,000 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_bd9efa87-b7b9-4505-b28b-2f5a44abedde/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-radio-wl128x-fm_drv.cil.i[314870,314883] [2022-11-25 23:58:02,001 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_bd9efa87-b7b9-4505-b28b-2f5a44abedde/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-radio-wl128x-fm_drv.cil.i[315035,315048] [2022-11-25 23:58:02,007 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 23:58:02,258 INFO L208 MainTranslator]: Completed translation [2022-11-25 23:58:02,258 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:58:02 WrapperNode [2022-11-25 23:58:02,259 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 23:58:02,260 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 23:58:02,260 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 23:58:02,260 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 23:58:02,268 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:58:02" (1/1) ... [2022-11-25 23:58:02,368 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:58:02" (1/1) ... [2022-11-25 23:58:02,650 INFO L138 Inliner]: procedures = 386, calls = 2501, calls flagged for inlining = 198, calls inlined = 148, statements flattened = 4928 [2022-11-25 23:58:02,651 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 23:58:02,651 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 23:58:02,651 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 23:58:02,652 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 23:58:02,666 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:58:02" (1/1) ... [2022-11-25 23:58:02,666 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:58:02" (1/1) ... [2022-11-25 23:58:02,720 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:58:02" (1/1) ... [2022-11-25 23:58:02,721 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:58:02" (1/1) ... [2022-11-25 23:58:02,878 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:58:02" (1/1) ... [2022-11-25 23:58:02,912 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:58:02" (1/1) ... [2022-11-25 23:58:02,955 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:58:02" (1/1) ... [2022-11-25 23:58:02,975 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:58:02" (1/1) ... [2022-11-25 23:58:03,010 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 23:58:03,011 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 23:58:03,011 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 23:58:03,011 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 23:58:03,013 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:58:02" (1/1) ... [2022-11-25 23:58:03,020 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 23:58:03,032 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd9efa87-b7b9-4505-b28b-2f5a44abedde/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 23:58:03,046 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd9efa87-b7b9-4505-b28b-2f5a44abedde/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 23:58:03,113 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd9efa87-b7b9-4505-b28b-2f5a44abedde/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 23:58:03,154 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2022-11-25 23:58:03,154 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2022-11-25 23:58:03,154 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-11-25 23:58:03,154 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-11-25 23:58:03,154 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_head_init [2022-11-25 23:58:03,155 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_head_init [2022-11-25 23:58:03,155 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-25 23:58:03,155 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-25 23:58:03,155 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2022-11-25 23:58:03,155 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2022-11-25 23:58:03,155 INFO L130 BoogieDeclarations]: Found specification of procedure fm_tx_set_stereo_mono [2022-11-25 23:58:03,155 INFO L138 BoogieDeclarations]: Found implementation of procedure fm_tx_set_stereo_mono [2022-11-25 23:58:03,155 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-11-25 23:58:03,155 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-11-25 23:58:03,155 INFO L130 BoogieDeclarations]: Found specification of procedure set_rds_len [2022-11-25 23:58:03,156 INFO L138 BoogieDeclarations]: Found implementation of procedure set_rds_len [2022-11-25 23:58:03,156 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_ctrl_handler_free [2022-11-25 23:58:03,156 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_ctrl_handler_free [2022-11-25 23:58:03,156 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-11-25 23:58:03,156 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-11-25 23:58:03,156 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2022-11-25 23:58:03,156 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2022-11-25 23:58:03,156 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_ctrl_new_std [2022-11-25 23:58:03,156 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_ctrl_new_std [2022-11-25 23:58:03,156 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-11-25 23:58:03,157 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-11-25 23:58:03,157 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exit [2022-11-25 23:58:03,157 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exit [2022-11-25 23:58:03,157 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-11-25 23:58:03,157 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-11-25 23:58:03,157 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-25 23:58:03,157 INFO L130 BoogieDeclarations]: Found specification of procedure tasklet_init [2022-11-25 23:58:03,157 INFO L138 BoogieDeclarations]: Found implementation of procedure tasklet_init [2022-11-25 23:58:03,157 INFO L130 BoogieDeclarations]: Found specification of procedure st_unregister [2022-11-25 23:58:03,157 INFO L138 BoogieDeclarations]: Found implementation of procedure st_unregister [2022-11-25 23:58:03,158 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-11-25 23:58:03,158 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2022-11-25 23:58:03,158 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2022-11-25 23:58:03,158 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2022-11-25 23:58:03,158 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2022-11-25 23:58:03,158 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-25 23:58:03,158 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-11-25 23:58:03,158 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-11-25 23:58:03,158 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-25 23:58:03,159 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_mutex_of_fmdev [2022-11-25 23:58:03,159 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_mutex_of_fmdev [2022-11-25 23:58:03,159 INFO L130 BoogieDeclarations]: Found specification of procedure fmc_release [2022-11-25 23:58:03,159 INFO L138 BoogieDeclarations]: Found implementation of procedure fmc_release [2022-11-25 23:58:03,159 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-25 23:58:03,159 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-25 23:58:03,159 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_mutex_of_fmdev [2022-11-25 23:58:03,159 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_mutex_of_fmdev [2022-11-25 23:58:03,159 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2022-11-25 23:58:03,159 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2022-11-25 23:58:03,160 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2022-11-25 23:58:03,160 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2022-11-25 23:58:03,160 INFO L130 BoogieDeclarations]: Found specification of procedure fmc_set_rds_mode [2022-11-25 23:58:03,160 INFO L138 BoogieDeclarations]: Found implementation of procedure fmc_set_rds_mode [2022-11-25 23:58:03,160 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_purge [2022-11-25 23:58:03,160 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_purge [2022-11-25 23:58:03,160 INFO L130 BoogieDeclarations]: Found specification of procedure video_get_drvdata [2022-11-25 23:58:03,160 INFO L138 BoogieDeclarations]: Found implementation of procedure video_get_drvdata [2022-11-25 23:58:03,160 INFO L130 BoogieDeclarations]: Found specification of procedure fm_tx_set_rds_mode [2022-11-25 23:58:03,160 INFO L138 BoogieDeclarations]: Found implementation of procedure fm_tx_set_rds_mode [2022-11-25 23:58:03,161 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-25 23:58:03,161 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2022-11-25 23:58:03,161 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2022-11-25 23:58:03,161 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2022-11-25 23:58:03,161 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2022-11-25 23:58:03,161 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_2 [2022-11-25 23:58:03,161 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_2 [2022-11-25 23:58:03,161 INFO L130 BoogieDeclarations]: Found specification of procedure complete [2022-11-25 23:58:03,161 INFO L138 BoogieDeclarations]: Found implementation of procedure complete [2022-11-25 23:58:03,162 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-25 23:58:03,162 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-11-25 23:58:03,162 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-11-25 23:58:03,162 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-25 23:58:03,162 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_to_user [2022-11-25 23:58:03,162 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_to_user [2022-11-25 23:58:03,162 INFO L130 BoogieDeclarations]: Found specification of procedure tasklet_schedule [2022-11-25 23:58:03,162 INFO L138 BoogieDeclarations]: Found implementation of procedure tasklet_schedule [2022-11-25 23:58:03,162 INFO L130 BoogieDeclarations]: Found specification of procedure fm_tx_set_preemph_filter [2022-11-25 23:58:03,162 INFO L138 BoogieDeclarations]: Found implementation of procedure fm_tx_set_preemph_filter [2022-11-25 23:58:03,163 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_tail [2022-11-25 23:58:03,163 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_tail [2022-11-25 23:58:03,163 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2022-11-25 23:58:03,163 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2022-11-25 23:58:03,163 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2022-11-25 23:58:03,163 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2022-11-25 23:58:03,163 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2022-11-25 23:58:03,163 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2022-11-25 23:58:03,163 INFO L130 BoogieDeclarations]: Found specification of procedure fm_g_volatile_ctrl [2022-11-25 23:58:03,163 INFO L138 BoogieDeclarations]: Found implementation of procedure fm_g_volatile_ctrl [2022-11-25 23:58:03,164 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 23:58:03,164 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 23:58:03,164 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy [2022-11-25 23:58:03,164 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy [2022-11-25 23:58:03,164 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2022-11-25 23:58:03,164 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2022-11-25 23:58:03,164 INFO L130 BoogieDeclarations]: Found specification of procedure fm_config_rx_mute_reg [2022-11-25 23:58:03,164 INFO L138 BoogieDeclarations]: Found implementation of procedure fm_config_rx_mute_reg [2022-11-25 23:58:03,164 INFO L130 BoogieDeclarations]: Found specification of procedure skb_dequeue [2022-11-25 23:58:03,165 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_dequeue [2022-11-25 23:58:03,165 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-25 23:58:03,165 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-25 23:58:03,165 INFO L130 BoogieDeclarations]: Found specification of procedure set_rds_data_mode [2022-11-25 23:58:03,165 INFO L138 BoogieDeclarations]: Found implementation of procedure set_rds_data_mode [2022-11-25 23:58:03,165 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-25 23:58:03,165 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-25 23:58:03,165 INFO L130 BoogieDeclarations]: Found specification of procedure fm_tx_set_pwr_lvl [2022-11-25 23:58:03,165 INFO L138 BoogieDeclarations]: Found implementation of procedure fm_tx_set_pwr_lvl [2022-11-25 23:58:03,165 INFO L130 BoogieDeclarations]: Found specification of procedure wait_for_completion_timeout [2022-11-25 23:58:03,166 INFO L138 BoogieDeclarations]: Found implementation of procedure wait_for_completion_timeout [2022-11-25 23:58:03,166 INFO L130 BoogieDeclarations]: Found specification of procedure fmc_prepare [2022-11-25 23:58:03,166 INFO L138 BoogieDeclarations]: Found implementation of procedure fmc_prepare [2022-11-25 23:58:03,166 INFO L130 BoogieDeclarations]: Found specification of procedure fmc_send_cmd [2022-11-25 23:58:03,166 INFO L138 BoogieDeclarations]: Found implementation of procedure fmc_send_cmd [2022-11-25 23:58:03,186 INFO L130 BoogieDeclarations]: Found specification of procedure video_device_release [2022-11-25 23:58:03,186 INFO L138 BoogieDeclarations]: Found implementation of procedure video_device_release [2022-11-25 23:58:03,186 INFO L130 BoogieDeclarations]: Found specification of procedure fm_send_cmd [2022-11-25 23:58:03,187 INFO L138 BoogieDeclarations]: Found implementation of procedure fm_send_cmd [2022-11-25 23:58:03,187 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2022-11-25 23:58:03,187 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2022-11-25 23:58:03,187 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-25 23:58:03,187 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-25 23:58:03,187 INFO L130 BoogieDeclarations]: Found specification of procedure fm_irq_call_stage [2022-11-25 23:58:03,187 INFO L138 BoogieDeclarations]: Found implementation of procedure fm_irq_call_stage [2022-11-25 23:58:03,187 INFO L130 BoogieDeclarations]: Found specification of procedure tasklet_kill [2022-11-25 23:58:03,187 INFO L138 BoogieDeclarations]: Found implementation of procedure tasklet_kill [2022-11-25 23:58:03,187 INFO L130 BoogieDeclarations]: Found specification of procedure video_drvdata [2022-11-25 23:58:03,187 INFO L138 BoogieDeclarations]: Found implementation of procedure video_drvdata [2022-11-25 23:58:03,188 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-25 23:58:03,188 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_fm_drv_exit_6_2 [2022-11-25 23:58:03,188 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_fm_drv_exit_6_2 [2022-11-25 23:58:03,188 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-25 23:58:03,188 INFO L130 BoogieDeclarations]: Found specification of procedure fm_rx_reset_rds_cache [2022-11-25 23:58:03,188 INFO L138 BoogieDeclarations]: Found implementation of procedure fm_rx_reset_rds_cache [2022-11-25 23:58:03,188 INFO L130 BoogieDeclarations]: Found specification of procedure fm_rx_reset_station_info [2022-11-25 23:58:03,188 INFO L138 BoogieDeclarations]: Found implementation of procedure fm_rx_reset_station_info [2022-11-25 23:58:03,188 INFO L130 BoogieDeclarations]: Found specification of procedure fm_v4l2_s_ctrl [2022-11-25 23:58:03,188 INFO L138 BoogieDeclarations]: Found implementation of procedure fm_v4l2_s_ctrl [2022-11-25 23:58:03,189 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-25 23:58:03,189 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2022-11-25 23:58:03,189 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2022-11-25 23:58:03,189 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~~int_handler_prototype~0 [2022-11-25 23:58:03,189 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~~int_handler_prototype~0 [2022-11-25 23:58:03,189 INFO L130 BoogieDeclarations]: Found specification of procedure enable_xmit [2022-11-25 23:58:03,189 INFO L138 BoogieDeclarations]: Found implementation of procedure enable_xmit [2022-11-25 23:58:03,189 INFO L130 BoogieDeclarations]: Found specification of procedure kfree_skb [2022-11-25 23:58:03,189 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree_skb [2022-11-25 23:58:03,189 INFO L130 BoogieDeclarations]: Found specification of procedure fm_rx_set_volume [2022-11-25 23:58:03,190 INFO L138 BoogieDeclarations]: Found implementation of procedure fm_rx_set_volume [2022-11-25 23:58:03,190 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2022-11-25 23:58:03,190 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2022-11-25 23:58:03,190 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2022-11-25 23:58:03,190 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2022-11-25 23:58:03,190 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2022-11-25 23:58:03,190 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2022-11-25 23:58:03,190 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-11-25 23:58:03,190 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-11-25 23:58:03,190 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-11-25 23:58:03,191 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-11-25 23:58:03,191 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_or_killable_mutex_of_fmdev [2022-11-25 23:58:03,191 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_or_killable_mutex_of_fmdev [2022-11-25 23:58:03,191 INFO L130 BoogieDeclarations]: Found specification of procedure set_rds_text [2022-11-25 23:58:03,191 INFO L138 BoogieDeclarations]: Found implementation of procedure set_rds_text [2022-11-25 23:58:03,191 INFO L130 BoogieDeclarations]: Found specification of procedure jiffies_to_msecs [2022-11-25 23:58:03,191 INFO L138 BoogieDeclarations]: Found implementation of procedure jiffies_to_msecs [2022-11-25 23:58:03,191 INFO L130 BoogieDeclarations]: Found specification of procedure fm_v4l2_fops_release [2022-11-25 23:58:03,191 INFO L138 BoogieDeclarations]: Found implementation of procedure fm_v4l2_fops_release [2022-11-25 23:58:03,192 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock [2022-11-25 23:58:03,192 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock [2022-11-25 23:58:03,192 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-11-25 23:58:03,192 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-11-25 23:58:03,192 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-25 23:58:03,192 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-25 23:58:03,192 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlock [2022-11-25 23:58:03,192 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlock [2022-11-25 23:58:03,192 INFO L130 BoogieDeclarations]: Found specification of procedure init_completion [2022-11-25 23:58:03,192 INFO L138 BoogieDeclarations]: Found implementation of procedure init_completion [2022-11-25 23:58:03,193 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-25 23:58:03,193 INFO L130 BoogieDeclarations]: Found specification of procedure skb_pull [2022-11-25 23:58:03,193 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_pull [2022-11-25 23:58:03,193 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-25 23:58:03,193 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-25 23:58:03,193 INFO L130 BoogieDeclarations]: Found specification of procedure fm_v4l2_fops_open [2022-11-25 23:58:03,193 INFO L138 BoogieDeclarations]: Found implementation of procedure fm_v4l2_fops_open [2022-11-25 23:58:03,193 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2022-11-25 23:58:03,193 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2022-11-25 23:58:03,193 INFO L130 BoogieDeclarations]: Found specification of procedure fm_rx_set_freq [2022-11-25 23:58:03,194 INFO L138 BoogieDeclarations]: Found implementation of procedure fm_rx_set_freq [2022-11-25 23:58:03,194 INFO L130 BoogieDeclarations]: Found specification of procedure fmc_set_mode [2022-11-25 23:58:03,194 INFO L138 BoogieDeclarations]: Found implementation of procedure fmc_set_mode [2022-11-25 23:58:03,194 INFO L130 BoogieDeclarations]: Found specification of procedure fm_v4l2_fops_write [2022-11-25 23:58:03,194 INFO L138 BoogieDeclarations]: Found implementation of procedure fm_v4l2_fops_write [2022-11-25 23:58:03,194 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2022-11-25 23:58:03,194 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2022-11-25 23:58:03,194 INFO L130 BoogieDeclarations]: Found specification of procedure fm_irq_call [2022-11-25 23:58:03,194 INFO L138 BoogieDeclarations]: Found implementation of procedure fm_irq_call [2022-11-25 23:58:03,194 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-11-25 23:58:03,195 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-11-25 23:58:03,195 INFO L130 BoogieDeclarations]: Found specification of procedure msecs_to_jiffies [2022-11-25 23:58:03,195 INFO L138 BoogieDeclarations]: Found implementation of procedure msecs_to_jiffies [2022-11-25 23:58:03,195 INFO L130 BoogieDeclarations]: Found specification of procedure fm_power_down [2022-11-25 23:58:03,195 INFO L138 BoogieDeclarations]: Found implementation of procedure fm_power_down [2022-11-25 23:58:03,195 INFO L130 BoogieDeclarations]: Found specification of procedure fm_download_firmware [2022-11-25 23:58:03,195 INFO L138 BoogieDeclarations]: Found implementation of procedure fm_download_firmware [2022-11-25 23:58:03,195 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-25 23:58:03,195 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2022-11-25 23:58:03,195 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2022-11-25 23:58:04,301 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 23:58:04,305 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 23:58:04,513 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-25 23:58:11,785 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2022-11-25 23:58:11,916 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 23:58:12,992 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 23:58:12,992 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-25 23:58:13,000 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 11:58:12 BoogieIcfgContainer [2022-11-25 23:58:13,000 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 23:58:13,004 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 23:58:13,004 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 23:58:13,008 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 23:58:13,009 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 11:57:58" (1/3) ... [2022-11-25 23:58:13,010 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1cd1b435 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 11:58:13, skipping insertion in model container [2022-11-25 23:58:13,010 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:58:02" (2/3) ... [2022-11-25 23:58:13,011 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1cd1b435 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 11:58:13, skipping insertion in model container [2022-11-25 23:58:13,012 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 11:58:12" (3/3) ... [2022-11-25 23:58:13,013 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-radio-wl128x-fm_drv.cil.i [2022-11-25 23:58:13,035 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 23:58:13,035 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2022-11-25 23:58:13,145 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 23:58:13,156 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;@479a1f36, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 23:58:13,156 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-11-25 23:58:13,170 INFO L276 IsEmpty]: Start isEmpty. Operand has 1354 states, 833 states have (on average 1.3445378151260505) internal successors, (1120), 849 states have internal predecessors, (1120), 422 states have call successors, (422), 97 states have call predecessors, (422), 96 states have return successors, (415), 412 states have call predecessors, (415), 415 states have call successors, (415) [2022-11-25 23:58:13,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 217 [2022-11-25 23:58:13,200 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:58:13,201 INFO L195 NwaCegarLoop]: trace histogram [20, 19, 19, 19, 19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:58:13,202 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-25 23:58:13,207 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:58:13,207 INFO L85 PathProgramCache]: Analyzing trace with hash 1718641867, now seen corresponding path program 1 times [2022-11-25 23:58:13,215 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:58:13,216 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [60707389] [2022-11-25 23:58:13,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:58:13,217 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:58:13,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:58:14,382 INFO L134 CoverageAnalysis]: Checked inductivity of 1406 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1406 trivial. 0 not checked. [2022-11-25 23:58:14,382 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:58:14,383 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [60707389] [2022-11-25 23:58:14,384 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [60707389] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:58:14,384 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:58:14,385 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 23:58:14,386 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1435162402] [2022-11-25 23:58:14,387 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:58:14,396 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 23:58:14,397 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:58:14,443 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 23:58:14,444 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 23:58:14,450 INFO L87 Difference]: Start difference. First operand has 1354 states, 833 states have (on average 1.3445378151260505) internal successors, (1120), 849 states have internal predecessors, (1120), 422 states have call successors, (422), 97 states have call predecessors, (422), 96 states have return successors, (415), 412 states have call predecessors, (415), 415 states have call successors, (415) Second operand has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 3 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) [2022-11-25 23:58:18,696 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 [] [2022-11-25 23:58:19,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:58:19,062 INFO L93 Difference]: Finished difference Result 3836 states and 5602 transitions. [2022-11-25 23:58:19,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 23:58:19,066 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 3 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) Word has length 216 [2022-11-25 23:58:19,067 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:58:19,118 INFO L225 Difference]: With dead ends: 3836 [2022-11-25 23:58:19,118 INFO L226 Difference]: Without dead ends: 2510 [2022-11-25 23:58:19,136 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 23:58:19,141 INFO L413 NwaCegarLoop]: 2039 mSDtfsCounter, 1791 mSDsluCounter, 1585 mSDsCounter, 0 mSdLazyCounter, 520 mSolverCounterSat, 11 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1793 SdHoareTripleChecker+Valid, 3624 SdHoareTripleChecker+Invalid, 532 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 520 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2022-11-25 23:58:19,142 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1793 Valid, 3624 Invalid, 532 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 520 Invalid, 1 Unknown, 0 Unchecked, 4.2s Time] [2022-11-25 23:58:19,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2510 states. [2022-11-25 23:58:19,354 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2510 to 2505. [2022-11-25 23:58:19,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2505 states, 1564 states have (on average 1.342071611253197) internal successors, (2099), 1595 states have internal predecessors, (2099), 755 states have call successors, (755), 184 states have call predecessors, (755), 183 states have return successors, (753), 744 states have call predecessors, (753), 751 states have call successors, (753) [2022-11-25 23:58:19,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2505 states to 2505 states and 3607 transitions. [2022-11-25 23:58:19,386 INFO L78 Accepts]: Start accepts. Automaton has 2505 states and 3607 transitions. Word has length 216 [2022-11-25 23:58:19,388 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:58:19,388 INFO L495 AbstractCegarLoop]: Abstraction has 2505 states and 3607 transitions. [2022-11-25 23:58:19,388 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 3 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) [2022-11-25 23:58:19,389 INFO L276 IsEmpty]: Start isEmpty. Operand 2505 states and 3607 transitions. [2022-11-25 23:58:19,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 236 [2022-11-25 23:58:19,398 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:58:19,398 INFO L195 NwaCegarLoop]: trace histogram [21, 20, 20, 20, 20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:58:19,398 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-25 23:58:19,399 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-25 23:58:19,399 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:58:19,400 INFO L85 PathProgramCache]: Analyzing trace with hash -215634932, now seen corresponding path program 1 times [2022-11-25 23:58:19,400 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:58:19,400 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1994410633] [2022-11-25 23:58:19,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:58:19,401 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:58:19,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:58:19,981 INFO L134 CoverageAnalysis]: Checked inductivity of 1560 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1560 trivial. 0 not checked. [2022-11-25 23:58:19,982 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:58:19,985 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1994410633] [2022-11-25 23:58:19,986 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1994410633] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:58:19,986 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:58:19,986 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 23:58:19,986 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [210135354] [2022-11-25 23:58:19,987 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:58:19,989 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 23:58:19,989 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:58:19,990 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 23:58:19,990 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 23:58:19,991 INFO L87 Difference]: Start difference. First operand 2505 states and 3607 transitions. Second operand has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 3 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) [2022-11-25 23:58:23,510 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:58:25,029 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.34s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:58:25,196 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:58:25,196 INFO L93 Difference]: Finished difference Result 5461 states and 7736 transitions. [2022-11-25 23:58:25,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 23:58:25,197 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 3 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) Word has length 235 [2022-11-25 23:58:25,198 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:58:25,222 INFO L225 Difference]: With dead ends: 5461 [2022-11-25 23:58:25,223 INFO L226 Difference]: Without dead ends: 2995 [2022-11-25 23:58:25,239 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 23:58:25,240 INFO L413 NwaCegarLoop]: 1998 mSDtfsCounter, 1185 mSDsluCounter, 1637 mSDsCounter, 0 mSdLazyCounter, 565 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1185 SdHoareTripleChecker+Valid, 3635 SdHoareTripleChecker+Invalid, 578 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 565 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2022-11-25 23:58:25,241 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1185 Valid, 3635 Invalid, 578 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 565 Invalid, 0 Unknown, 0 Unchecked, 5.0s Time] [2022-11-25 23:58:25,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2995 states. [2022-11-25 23:58:25,386 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2995 to 2974. [2022-11-25 23:58:25,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2974 states, 1829 states have (on average 1.3121924548933843) internal successors, (2400), 1874 states have internal predecessors, (2400), 873 states have call successors, (873), 270 states have call predecessors, (873), 269 states have return successors, (871), 854 states have call predecessors, (871), 869 states have call successors, (871) [2022-11-25 23:58:25,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2974 states to 2974 states and 4144 transitions. [2022-11-25 23:58:25,423 INFO L78 Accepts]: Start accepts. Automaton has 2974 states and 4144 transitions. Word has length 235 [2022-11-25 23:58:25,425 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:58:25,425 INFO L495 AbstractCegarLoop]: Abstraction has 2974 states and 4144 transitions. [2022-11-25 23:58:25,425 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 3 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) [2022-11-25 23:58:25,425 INFO L276 IsEmpty]: Start isEmpty. Operand 2974 states and 4144 transitions. [2022-11-25 23:58:25,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 255 [2022-11-25 23:58:25,434 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:58:25,434 INFO L195 NwaCegarLoop]: trace histogram [22, 21, 21, 21, 21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:58:25,434 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-25 23:58:25,468 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-25 23:58:25,468 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:58:25,468 INFO L85 PathProgramCache]: Analyzing trace with hash 1049434490, now seen corresponding path program 1 times [2022-11-25 23:58:25,469 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:58:25,469 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [787869925] [2022-11-25 23:58:25,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:58:25,469 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:58:25,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:58:26,200 INFO L134 CoverageAnalysis]: Checked inductivity of 1722 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1722 trivial. 0 not checked. [2022-11-25 23:58:26,201 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:58:26,201 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [787869925] [2022-11-25 23:58:26,201 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [787869925] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:58:26,202 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:58:26,202 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-25 23:58:26,202 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [208446610] [2022-11-25 23:58:26,202 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:58:26,203 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 23:58:26,204 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:58:26,205 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 23:58:26,205 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-11-25 23:58:26,206 INFO L87 Difference]: Start difference. First operand 2974 states and 4144 transitions. Second operand has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 3 states have call successors, (30), 2 states have call predecessors, (30), 1 states have return successors, (27), 3 states have call predecessors, (27), 3 states have call successors, (27) [2022-11-25 23:58:31,462 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 [] [2022-11-25 23:58:32,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:58:32,272 INFO L93 Difference]: Finished difference Result 5222 states and 7233 transitions. [2022-11-25 23:58:32,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-25 23:58:32,273 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 3 states have call successors, (30), 2 states have call predecessors, (30), 1 states have return successors, (27), 3 states have call predecessors, (27), 3 states have call successors, (27) Word has length 254 [2022-11-25 23:58:32,274 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:58:32,289 INFO L225 Difference]: With dead ends: 5222 [2022-11-25 23:58:32,289 INFO L226 Difference]: Without dead ends: 2287 [2022-11-25 23:58:32,302 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-11-25 23:58:32,303 INFO L413 NwaCegarLoop]: 1410 mSDtfsCounter, 2058 mSDsluCounter, 534 mSDsCounter, 0 mSdLazyCounter, 1205 mSolverCounterSat, 717 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2220 SdHoareTripleChecker+Valid, 1944 SdHoareTripleChecker+Invalid, 1923 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 717 IncrementalHoareTripleChecker+Valid, 1205 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2022-11-25 23:58:32,304 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2220 Valid, 1944 Invalid, 1923 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [717 Valid, 1205 Invalid, 1 Unknown, 0 Unchecked, 5.7s Time] [2022-11-25 23:58:32,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2287 states. [2022-11-25 23:58:32,432 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2287 to 2279. [2022-11-25 23:58:32,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2279 states, 1411 states have (on average 1.3012048192771084) internal successors, (1836), 1426 states have internal predecessors, (1836), 650 states have call successors, (650), 216 states have call predecessors, (650), 215 states have return successors, (646), 641 states have call predecessors, (646), 646 states have call successors, (646) [2022-11-25 23:58:32,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2279 states to 2279 states and 3132 transitions. [2022-11-25 23:58:32,451 INFO L78 Accepts]: Start accepts. Automaton has 2279 states and 3132 transitions. Word has length 254 [2022-11-25 23:58:32,451 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:58:32,452 INFO L495 AbstractCegarLoop]: Abstraction has 2279 states and 3132 transitions. [2022-11-25 23:58:32,452 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 3 states have call successors, (30), 2 states have call predecessors, (30), 1 states have return successors, (27), 3 states have call predecessors, (27), 3 states have call successors, (27) [2022-11-25 23:58:32,452 INFO L276 IsEmpty]: Start isEmpty. Operand 2279 states and 3132 transitions. [2022-11-25 23:58:32,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 263 [2022-11-25 23:58:32,458 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:58:32,459 INFO L195 NwaCegarLoop]: trace histogram [23, 19, 19, 19, 19, 19, 19, 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] [2022-11-25 23:58:32,459 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-25 23:58:32,459 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-25 23:58:32,459 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:58:32,460 INFO L85 PathProgramCache]: Analyzing trace with hash -1499728055, now seen corresponding path program 1 times [2022-11-25 23:58:32,460 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:58:32,460 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1473879106] [2022-11-25 23:58:32,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:58:32,461 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:58:32,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:58:33,798 INFO L134 CoverageAnalysis]: Checked inductivity of 1537 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1537 trivial. 0 not checked. [2022-11-25 23:58:33,798 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:58:33,800 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1473879106] [2022-11-25 23:58:33,801 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1473879106] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:58:33,801 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:58:33,801 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-25 23:58:33,801 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [950306336] [2022-11-25 23:58:33,802 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:58:33,802 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 23:58:33,802 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:58:33,803 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 23:58:33,803 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-25 23:58:33,803 INFO L87 Difference]: Start difference. First operand 2279 states and 3132 transitions. Second operand has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 2 states have call successors, (32), 3 states have call predecessors, (32), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2022-11-25 23:58:37,647 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.91s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:58:39,663 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:58:41,446 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.78s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:58:41,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:58:41,679 INFO L93 Difference]: Finished difference Result 2285 states and 3137 transitions. [2022-11-25 23:58:41,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-25 23:58:41,680 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 2 states have call successors, (32), 3 states have call predecessors, (32), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) Word has length 262 [2022-11-25 23:58:41,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:58:41,697 INFO L225 Difference]: With dead ends: 2285 [2022-11-25 23:58:41,697 INFO L226 Difference]: Without dead ends: 2283 [2022-11-25 23:58:41,699 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-25 23:58:41,700 INFO L413 NwaCegarLoop]: 1549 mSDtfsCounter, 1726 mSDsluCounter, 3091 mSDsCounter, 0 mSdLazyCounter, 717 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1731 SdHoareTripleChecker+Valid, 4640 SdHoareTripleChecker+Invalid, 719 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 717 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.7s IncrementalHoareTripleChecker+Time [2022-11-25 23:58:41,701 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1731 Valid, 4640 Invalid, 719 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 717 Invalid, 1 Unknown, 0 Unchecked, 7.7s Time] [2022-11-25 23:58:41,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2283 states. [2022-11-25 23:58:41,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2283 to 2283. [2022-11-25 23:58:41,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2283 states, 1414 states have (on average 1.3005657708628007) internal successors, (1839), 1429 states have internal predecessors, (1839), 650 states have call successors, (650), 217 states have call predecessors, (650), 216 states have return successors, (646), 641 states have call predecessors, (646), 646 states have call successors, (646) [2022-11-25 23:58:41,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2283 states to 2283 states and 3135 transitions. [2022-11-25 23:58:41,857 INFO L78 Accepts]: Start accepts. Automaton has 2283 states and 3135 transitions. Word has length 262 [2022-11-25 23:58:41,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:58:41,858 INFO L495 AbstractCegarLoop]: Abstraction has 2283 states and 3135 transitions. [2022-11-25 23:58:41,858 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 2 states have call successors, (32), 3 states have call predecessors, (32), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2022-11-25 23:58:41,858 INFO L276 IsEmpty]: Start isEmpty. Operand 2283 states and 3135 transitions. [2022-11-25 23:58:41,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 268 [2022-11-25 23:58:41,865 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:58:41,865 INFO L195 NwaCegarLoop]: trace histogram [23, 19, 19, 19, 19, 19, 19, 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] [2022-11-25 23:58:41,865 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-25 23:58:41,866 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-25 23:58:41,866 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:58:41,866 INFO L85 PathProgramCache]: Analyzing trace with hash -298409923, now seen corresponding path program 1 times [2022-11-25 23:58:41,867 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:58:41,867 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1061087360] [2022-11-25 23:58:41,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:58:41,867 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:58:42,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:58:43,038 INFO L134 CoverageAnalysis]: Checked inductivity of 1539 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1537 trivial. 0 not checked. [2022-11-25 23:58:43,038 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:58:43,039 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1061087360] [2022-11-25 23:58:43,039 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1061087360] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:58:43,039 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:58:43,039 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-25 23:58:43,039 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [272882894] [2022-11-25 23:58:43,040 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:58:43,040 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 23:58:43,040 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:58:43,041 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 23:58:43,041 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-25 23:58:43,041 INFO L87 Difference]: Start difference. First operand 2283 states and 3135 transitions. Second operand has 5 states, 5 states have (on average 13.6) internal successors, (68), 4 states have internal predecessors, (68), 2 states have call successors, (33), 3 states have call predecessors, (33), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2022-11-25 23:58:45,858 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:58:48,153 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:58:48,609 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:58:48,609 INFO L93 Difference]: Finished difference Result 2291 states and 3143 transitions. [2022-11-25 23:58:48,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-25 23:58:48,610 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 4 states have internal predecessors, (68), 2 states have call successors, (33), 3 states have call predecessors, (33), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) Word has length 267 [2022-11-25 23:58:48,610 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:58:48,624 INFO L225 Difference]: With dead ends: 2291 [2022-11-25 23:58:48,624 INFO L226 Difference]: Without dead ends: 2289 [2022-11-25 23:58:48,626 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-25 23:58:48,627 INFO L413 NwaCegarLoop]: 1552 mSDtfsCounter, 1711 mSDsluCounter, 3101 mSDsCounter, 0 mSdLazyCounter, 722 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1717 SdHoareTripleChecker+Valid, 4653 SdHoareTripleChecker+Invalid, 724 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 722 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2022-11-25 23:58:48,627 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1717 Valid, 4653 Invalid, 724 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 722 Invalid, 1 Unknown, 0 Unchecked, 5.3s Time] [2022-11-25 23:58:48,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2289 states. [2022-11-25 23:58:48,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2289 to 2287. [2022-11-25 23:58:48,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2287 states, 1417 states have (on average 1.2999294283697953) internal successors, (1842), 1432 states have internal predecessors, (1842), 650 states have call successors, (650), 218 states have call predecessors, (650), 217 states have return successors, (646), 641 states have call predecessors, (646), 646 states have call successors, (646) [2022-11-25 23:58:48,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2287 states to 2287 states and 3138 transitions. [2022-11-25 23:58:48,792 INFO L78 Accepts]: Start accepts. Automaton has 2287 states and 3138 transitions. Word has length 267 [2022-11-25 23:58:48,792 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:58:48,793 INFO L495 AbstractCegarLoop]: Abstraction has 2287 states and 3138 transitions. [2022-11-25 23:58:48,793 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 4 states have internal predecessors, (68), 2 states have call successors, (33), 3 states have call predecessors, (33), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2022-11-25 23:58:48,793 INFO L276 IsEmpty]: Start isEmpty. Operand 2287 states and 3138 transitions. [2022-11-25 23:58:48,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 272 [2022-11-25 23:58:48,800 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:58:48,800 INFO L195 NwaCegarLoop]: trace histogram [23, 19, 19, 19, 19, 19, 19, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:58:48,800 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-25 23:58:48,801 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-25 23:58:48,801 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:58:48,801 INFO L85 PathProgramCache]: Analyzing trace with hash -1870071606, now seen corresponding path program 1 times [2022-11-25 23:58:48,802 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:58:48,802 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [527177227] [2022-11-25 23:58:48,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:58:48,802 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:58:48,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:58:49,843 INFO L134 CoverageAnalysis]: Checked inductivity of 1544 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 1540 trivial. 0 not checked. [2022-11-25 23:58:49,844 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:58:49,844 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [527177227] [2022-11-25 23:58:49,844 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [527177227] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:58:49,844 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:58:49,844 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-25 23:58:49,845 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [658209921] [2022-11-25 23:58:49,845 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:58:49,846 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 23:58:49,846 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:58:49,847 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 23:58:49,847 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-25 23:58:49,848 INFO L87 Difference]: Start difference. First operand 2287 states and 3138 transitions. Second operand has 5 states, 5 states have (on average 13.6) internal successors, (68), 4 states have internal predecessors, (68), 2 states have call successors, (34), 3 states have call predecessors, (34), 1 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2022-11-25 23:58:53,831 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.97s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:58:56,658 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:58:56,974 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:58:56,975 INFO L93 Difference]: Finished difference Result 2293 states and 3143 transitions. [2022-11-25 23:58:56,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-25 23:58:56,976 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 4 states have internal predecessors, (68), 2 states have call successors, (34), 3 states have call predecessors, (34), 1 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) Word has length 271 [2022-11-25 23:58:56,976 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:58:56,991 INFO L225 Difference]: With dead ends: 2293 [2022-11-25 23:58:56,991 INFO L226 Difference]: Without dead ends: 2291 [2022-11-25 23:58:56,993 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-25 23:58:56,994 INFO L413 NwaCegarLoop]: 1552 mSDtfsCounter, 1721 mSDsluCounter, 3091 mSDsCounter, 0 mSdLazyCounter, 717 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1724 SdHoareTripleChecker+Valid, 4643 SdHoareTripleChecker+Invalid, 719 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 717 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.9s IncrementalHoareTripleChecker+Time [2022-11-25 23:58:56,994 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1724 Valid, 4643 Invalid, 719 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 717 Invalid, 1 Unknown, 0 Unchecked, 6.9s Time] [2022-11-25 23:58:56,998 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2291 states. [2022-11-25 23:58:57,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2291 to 2291. [2022-11-25 23:58:57,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2291 states, 1420 states have (on average 1.2992957746478873) internal successors, (1845), 1435 states have internal predecessors, (1845), 650 states have call successors, (650), 219 states have call predecessors, (650), 218 states have return successors, (646), 641 states have call predecessors, (646), 646 states have call successors, (646) [2022-11-25 23:58:57,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2291 states to 2291 states and 3141 transitions. [2022-11-25 23:58:57,254 INFO L78 Accepts]: Start accepts. Automaton has 2291 states and 3141 transitions. Word has length 271 [2022-11-25 23:58:57,254 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:58:57,255 INFO L495 AbstractCegarLoop]: Abstraction has 2291 states and 3141 transitions. [2022-11-25 23:58:57,255 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 4 states have internal predecessors, (68), 2 states have call successors, (34), 3 states have call predecessors, (34), 1 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2022-11-25 23:58:57,255 INFO L276 IsEmpty]: Start isEmpty. Operand 2291 states and 3141 transitions. [2022-11-25 23:58:57,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 277 [2022-11-25 23:58:57,264 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:58:57,265 INFO L195 NwaCegarLoop]: trace histogram [23, 19, 19, 19, 19, 19, 19, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:58:57,265 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-25 23:58:57,265 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-25 23:58:57,266 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:58:57,266 INFO L85 PathProgramCache]: Analyzing trace with hash 1837395062, now seen corresponding path program 1 times [2022-11-25 23:58:57,266 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:58:57,266 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [111750837] [2022-11-25 23:58:57,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:58:57,267 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:58:57,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:58:58,234 INFO L134 CoverageAnalysis]: Checked inductivity of 1566 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 1560 trivial. 0 not checked. [2022-11-25 23:58:58,235 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:58:58,235 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [111750837] [2022-11-25 23:58:58,235 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [111750837] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:58:58,235 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:58:58,235 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-25 23:58:58,236 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1737600803] [2022-11-25 23:58:58,236 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:58:58,237 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 23:58:58,238 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:58:58,239 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 23:58:58,239 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-25 23:58:58,247 INFO L87 Difference]: Start difference. First operand 2291 states and 3141 transitions. Second operand has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (33), 3 states have call predecessors, (33), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2022-11-25 23:59:03,059 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.31s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:59:03,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:59:03,303 INFO L93 Difference]: Finished difference Result 2297 states and 3146 transitions. [2022-11-25 23:59:03,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-25 23:59:03,305 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (33), 3 states have call predecessors, (33), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) Word has length 276 [2022-11-25 23:59:03,306 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:59:03,320 INFO L225 Difference]: With dead ends: 2297 [2022-11-25 23:59:03,320 INFO L226 Difference]: Without dead ends: 2295 [2022-11-25 23:59:03,322 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-25 23:59:03,323 INFO L413 NwaCegarLoop]: 1552 mSDtfsCounter, 1721 mSDsluCounter, 3091 mSDsCounter, 0 mSdLazyCounter, 718 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1723 SdHoareTripleChecker+Valid, 4643 SdHoareTripleChecker+Invalid, 719 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 718 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.8s IncrementalHoareTripleChecker+Time [2022-11-25 23:59:03,324 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1723 Valid, 4643 Invalid, 719 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 718 Invalid, 0 Unknown, 0 Unchecked, 4.8s Time] [2022-11-25 23:59:03,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2295 states. [2022-11-25 23:59:03,514 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2295 to 2295. [2022-11-25 23:59:03,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2295 states, 1423 states have (on average 1.298664792691497) internal successors, (1848), 1438 states have internal predecessors, (1848), 650 states have call successors, (650), 220 states have call predecessors, (650), 219 states have return successors, (646), 641 states have call predecessors, (646), 646 states have call successors, (646) [2022-11-25 23:59:03,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2295 states to 2295 states and 3144 transitions. [2022-11-25 23:59:03,529 INFO L78 Accepts]: Start accepts. Automaton has 2295 states and 3144 transitions. Word has length 276 [2022-11-25 23:59:03,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:59:03,529 INFO L495 AbstractCegarLoop]: Abstraction has 2295 states and 3144 transitions. [2022-11-25 23:59:03,530 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (33), 3 states have call predecessors, (33), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2022-11-25 23:59:03,530 INFO L276 IsEmpty]: Start isEmpty. Operand 2295 states and 3144 transitions. [2022-11-25 23:59:03,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 288 [2022-11-25 23:59:03,539 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:59:03,539 INFO L195 NwaCegarLoop]: trace histogram [21, 20, 20, 20, 20, 20, 20, 5, 5, 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] [2022-11-25 23:59:03,539 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-25 23:59:03,540 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-25 23:59:03,540 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:59:03,540 INFO L85 PathProgramCache]: Analyzing trace with hash -2053346323, now seen corresponding path program 1 times [2022-11-25 23:59:03,540 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:59:03,541 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1028108060] [2022-11-25 23:59:03,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:59:03,541 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:59:03,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:59:03,919 INFO L134 CoverageAnalysis]: Checked inductivity of 1599 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1599 trivial. 0 not checked. [2022-11-25 23:59:03,919 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:59:03,919 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1028108060] [2022-11-25 23:59:03,920 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1028108060] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:59:03,920 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:59:03,920 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 23:59:03,920 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1603099558] [2022-11-25 23:59:03,920 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:59:03,921 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 23:59:03,921 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:59:03,922 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 23:59:03,922 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 23:59:03,922 INFO L87 Difference]: Start difference. First operand 2295 states and 3144 transitions. Second operand has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 3 states have call successors, (36), 2 states have call predecessors, (36), 1 states have return successors, (33), 3 states have call predecessors, (33), 3 states have call successors, (33) [2022-11-25 23:59:08,945 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 [] [2022-11-25 23:59:09,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:59:09,121 INFO L93 Difference]: Finished difference Result 5951 states and 8177 transitions. [2022-11-25 23:59:09,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 23:59:09,122 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 3 states have call successors, (36), 2 states have call predecessors, (36), 1 states have return successors, (33), 3 states have call predecessors, (33), 3 states have call successors, (33) Word has length 287 [2022-11-25 23:59:09,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:59:09,148 INFO L225 Difference]: With dead ends: 5951 [2022-11-25 23:59:09,148 INFO L226 Difference]: Without dead ends: 3713 [2022-11-25 23:59:09,162 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 23:59:09,163 INFO L413 NwaCegarLoop]: 1954 mSDtfsCounter, 1618 mSDsluCounter, 1529 mSDsCounter, 0 mSdLazyCounter, 517 mSolverCounterSat, 13 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1618 SdHoareTripleChecker+Valid, 3483 SdHoareTripleChecker+Invalid, 531 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 517 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.8s IncrementalHoareTripleChecker+Time [2022-11-25 23:59:09,163 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1618 Valid, 3483 Invalid, 531 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 517 Invalid, 1 Unknown, 0 Unchecked, 4.8s Time] [2022-11-25 23:59:09,169 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3713 states. [2022-11-25 23:59:09,555 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3713 to 3674. [2022-11-25 23:59:09,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3674 states, 2300 states have (on average 1.3065217391304347) internal successors, (3005), 2332 states have internal predecessors, (3005), 1021 states have call successors, (1021), 351 states have call predecessors, (1021), 350 states have return successors, (1017), 1000 states have call predecessors, (1017), 1017 states have call successors, (1017) [2022-11-25 23:59:09,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3674 states to 3674 states and 5043 transitions. [2022-11-25 23:59:09,577 INFO L78 Accepts]: Start accepts. Automaton has 3674 states and 5043 transitions. Word has length 287 [2022-11-25 23:59:09,577 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:59:09,577 INFO L495 AbstractCegarLoop]: Abstraction has 3674 states and 5043 transitions. [2022-11-25 23:59:09,578 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 3 states have call successors, (36), 2 states have call predecessors, (36), 1 states have return successors, (33), 3 states have call predecessors, (33), 3 states have call successors, (33) [2022-11-25 23:59:09,578 INFO L276 IsEmpty]: Start isEmpty. Operand 3674 states and 5043 transitions. [2022-11-25 23:59:09,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 282 [2022-11-25 23:59:09,584 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:59:09,585 INFO L195 NwaCegarLoop]: trace histogram [23, 19, 19, 19, 19, 19, 19, 5, 4, 4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:59:09,585 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-25 23:59:09,585 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-25 23:59:09,586 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:59:09,586 INFO L85 PathProgramCache]: Analyzing trace with hash -644871222, now seen corresponding path program 1 times [2022-11-25 23:59:09,586 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:59:09,586 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1467180369] [2022-11-25 23:59:09,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:59:09,587 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:59:09,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:59:10,726 INFO L134 CoverageAnalysis]: Checked inductivity of 1568 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 1560 trivial. 0 not checked. [2022-11-25 23:59:10,726 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:59:10,726 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1467180369] [2022-11-25 23:59:10,727 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1467180369] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:59:10,727 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:59:10,727 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-25 23:59:10,727 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [173640094] [2022-11-25 23:59:10,727 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:59:10,728 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 23:59:10,728 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:59:10,729 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 23:59:10,730 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-25 23:59:10,730 INFO L87 Difference]: Start difference. First operand 3674 states and 5043 transitions. Second operand has 5 states, 5 states have (on average 13.6) internal successors, (68), 4 states have internal predecessors, (68), 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) [2022-11-25 23:59:17,136 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 [] [2022-11-25 23:59:17,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:59:17,790 INFO L93 Difference]: Finished difference Result 6773 states and 9338 transitions. [2022-11-25 23:59:17,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-25 23:59:17,790 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 4 states have internal predecessors, (68), 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 281 [2022-11-25 23:59:17,791 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:59:17,877 INFO L225 Difference]: With dead ends: 6773 [2022-11-25 23:59:17,877 INFO L226 Difference]: Without dead ends: 6769 [2022-11-25 23:59:17,880 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-25 23:59:17,881 INFO L413 NwaCegarLoop]: 1951 mSDtfsCounter, 1573 mSDsluCounter, 5384 mSDsCounter, 0 mSdLazyCounter, 994 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1575 SdHoareTripleChecker+Valid, 7335 SdHoareTripleChecker+Invalid, 998 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 994 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.5s IncrementalHoareTripleChecker+Time [2022-11-25 23:59:17,881 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1575 Valid, 7335 Invalid, 998 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 994 Invalid, 1 Unknown, 0 Unchecked, 6.5s Time] [2022-11-25 23:59:17,894 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6769 states. [2022-11-25 23:59:18,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6769 to 6750. [2022-11-25 23:59:18,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6750 states, 4210 states have (on average 1.312351543942993) internal successors, (5525), 4282 states have internal predecessors, (5525), 1892 states have call successors, (1892), 653 states have call predecessors, (1892), 645 states have return successors, (1900), 1832 states have call predecessors, (1900), 1884 states have call successors, (1900) [2022-11-25 23:59:18,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6750 states to 6750 states and 9317 transitions. [2022-11-25 23:59:18,450 INFO L78 Accepts]: Start accepts. Automaton has 6750 states and 9317 transitions. Word has length 281 [2022-11-25 23:59:18,451 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:59:18,451 INFO L495 AbstractCegarLoop]: Abstraction has 6750 states and 9317 transitions. [2022-11-25 23:59:18,452 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 4 states have internal predecessors, (68), 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) [2022-11-25 23:59:18,452 INFO L276 IsEmpty]: Start isEmpty. Operand 6750 states and 9317 transitions. [2022-11-25 23:59:18,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 287 [2022-11-25 23:59:18,459 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:59:18,459 INFO L195 NwaCegarLoop]: trace histogram [23, 19, 19, 19, 19, 19, 19, 6, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:59:18,459 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-25 23:59:18,460 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-25 23:59:18,465 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:59:18,465 INFO L85 PathProgramCache]: Analyzing trace with hash -805785482, now seen corresponding path program 1 times [2022-11-25 23:59:18,466 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:59:18,466 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [948531566] [2022-11-25 23:59:18,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:59:18,467 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:59:18,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:59:19,538 INFO L134 CoverageAnalysis]: Checked inductivity of 1598 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 1588 trivial. 0 not checked. [2022-11-25 23:59:19,538 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:59:19,539 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [948531566] [2022-11-25 23:59:19,539 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [948531566] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:59:19,539 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:59:19,539 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-25 23:59:19,540 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [734465064] [2022-11-25 23:59:19,540 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:59:19,540 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 23:59:19,541 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:59:19,541 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 23:59:19,541 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-25 23:59:19,542 INFO L87 Difference]: Start difference. First operand 6750 states and 9317 transitions. Second operand has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (35), 3 states have call predecessors, (35), 1 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) [2022-11-25 23:59:23,699 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.34s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:59:25,708 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:59:27,716 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:59:28,037 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:59:28,038 INFO L93 Difference]: Finished difference Result 6756 states and 9322 transitions. [2022-11-25 23:59:28,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-25 23:59:28,039 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (35), 3 states have call predecessors, (35), 1 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) Word has length 286 [2022-11-25 23:59:28,040 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:59:28,083 INFO L225 Difference]: With dead ends: 6756 [2022-11-25 23:59:28,083 INFO L226 Difference]: Without dead ends: 6642 [2022-11-25 23:59:28,090 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-25 23:59:28,091 INFO L413 NwaCegarLoop]: 1553 mSDtfsCounter, 1721 mSDsluCounter, 3093 mSDsCounter, 0 mSdLazyCounter, 713 mSolverCounterSat, 1 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1721 SdHoareTripleChecker+Valid, 4646 SdHoareTripleChecker+Invalid, 716 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 713 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.0s IncrementalHoareTripleChecker+Time [2022-11-25 23:59:28,091 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1721 Valid, 4646 Invalid, 716 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 713 Invalid, 2 Unknown, 0 Unchecked, 8.0s Time] [2022-11-25 23:59:28,100 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6642 states. [2022-11-25 23:59:28,622 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6642 to 6642. [2022-11-25 23:59:28,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6642 states, 4159 states have (on average 1.3120942534263045) internal successors, (5457), 4215 states have internal predecessors, (5457), 1854 states have call successors, (1854), 633 states have call predecessors, (1854), 626 states have return successors, (1866), 1807 states have call predecessors, (1866), 1850 states have call successors, (1866) [2022-11-25 23:59:28,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6642 states to 6642 states and 9177 transitions. [2022-11-25 23:59:28,669 INFO L78 Accepts]: Start accepts. Automaton has 6642 states and 9177 transitions. Word has length 286 [2022-11-25 23:59:28,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:59:28,670 INFO L495 AbstractCegarLoop]: Abstraction has 6642 states and 9177 transitions. [2022-11-25 23:59:28,671 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (35), 3 states have call predecessors, (35), 1 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) [2022-11-25 23:59:28,671 INFO L276 IsEmpty]: Start isEmpty. Operand 6642 states and 9177 transitions. [2022-11-25 23:59:28,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 301 [2022-11-25 23:59:28,678 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:59:28,678 INFO L195 NwaCegarLoop]: trace histogram [25, 20, 20, 20, 20, 20, 20, 3, 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] [2022-11-25 23:59:28,679 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-25 23:59:28,679 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-25 23:59:28,680 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:59:28,680 INFO L85 PathProgramCache]: Analyzing trace with hash -192710576, now seen corresponding path program 1 times [2022-11-25 23:59:28,680 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:59:28,680 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [173374142] [2022-11-25 23:59:28,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:59:28,681 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:59:28,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:59:29,103 INFO L134 CoverageAnalysis]: Checked inductivity of 1761 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 1754 trivial. 0 not checked. [2022-11-25 23:59:29,103 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:59:29,103 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [173374142] [2022-11-25 23:59:29,104 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [173374142] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:59:29,104 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:59:29,104 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 23:59:29,104 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [825072479] [2022-11-25 23:59:29,104 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:59:29,105 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 23:59:29,105 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:59:29,106 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 23:59:29,106 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 23:59:29,106 INFO L87 Difference]: Start difference. First operand 6642 states and 9177 transitions. Second operand has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 3 states have call successors, (35), 2 states have call predecessors, (35), 1 states have return successors, (32), 3 states have call predecessors, (32), 3 states have call successors, (32) [2022-11-25 23:59:33,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:59:33,603 INFO L93 Difference]: Finished difference Result 14858 states and 20449 transitions. [2022-11-25 23:59:33,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 23:59:33,604 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 3 states have call successors, (35), 2 states have call predecessors, (35), 1 states have return successors, (32), 3 states have call predecessors, (32), 3 states have call successors, (32) Word has length 300 [2022-11-25 23:59:33,604 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:59:33,654 INFO L225 Difference]: With dead ends: 14858 [2022-11-25 23:59:33,654 INFO L226 Difference]: Without dead ends: 8498 [2022-11-25 23:59:33,686 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 23:59:33,687 INFO L413 NwaCegarLoop]: 2136 mSDtfsCounter, 757 mSDsluCounter, 1482 mSDsCounter, 0 mSdLazyCounter, 628 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 757 SdHoareTripleChecker+Valid, 3618 SdHoareTripleChecker+Invalid, 637 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 628 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2022-11-25 23:59:33,687 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [757 Valid, 3618 Invalid, 637 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 628 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2022-11-25 23:59:33,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8498 states. [2022-11-25 23:59:34,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8498 to 8439. [2022-11-25 23:59:34,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8439 states, 5273 states have (on average 1.3038118717997345) internal successors, (6875), 5347 states have internal predecessors, (6875), 2325 states have call successors, (2325), 846 states have call predecessors, (2325), 838 states have return successors, (2339), 2260 states have call predecessors, (2339), 2321 states have call successors, (2339) [2022-11-25 23:59:34,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8439 states to 8439 states and 11539 transitions. [2022-11-25 23:59:34,373 INFO L78 Accepts]: Start accepts. Automaton has 8439 states and 11539 transitions. Word has length 300 [2022-11-25 23:59:34,374 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:59:34,374 INFO L495 AbstractCegarLoop]: Abstraction has 8439 states and 11539 transitions. [2022-11-25 23:59:34,374 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 3 states have call successors, (35), 2 states have call predecessors, (35), 1 states have return successors, (32), 3 states have call predecessors, (32), 3 states have call successors, (32) [2022-11-25 23:59:34,375 INFO L276 IsEmpty]: Start isEmpty. Operand 8439 states and 11539 transitions. [2022-11-25 23:59:34,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 352 [2022-11-25 23:59:34,385 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:59:34,385 INFO L195 NwaCegarLoop]: trace histogram [25, 20, 20, 20, 20, 20, 20, 7, 7, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:59:34,386 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-25 23:59:34,386 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-25 23:59:34,386 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:59:34,387 INFO L85 PathProgramCache]: Analyzing trace with hash -460209206, now seen corresponding path program 1 times [2022-11-25 23:59:34,387 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:59:34,387 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [454177849] [2022-11-25 23:59:34,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:59:34,388 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:59:34,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:59:34,820 INFO L134 CoverageAnalysis]: Checked inductivity of 1829 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 1822 trivial. 0 not checked. [2022-11-25 23:59:34,820 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:59:34,820 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [454177849] [2022-11-25 23:59:34,820 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [454177849] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:59:34,821 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:59:34,821 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 23:59:34,821 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [57644696] [2022-11-25 23:59:34,821 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:59:34,822 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 23:59:34,822 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:59:34,823 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 23:59:34,823 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 23:59:34,823 INFO L87 Difference]: Start difference. First operand 8439 states and 11539 transitions. Second operand has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 3 states have call successors, (44), 2 states have call predecessors, (44), 1 states have return successors, (41), 3 states have call predecessors, (41), 3 states have call successors, (41) [2022-11-25 23:59:39,576 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:59:39,576 INFO L93 Difference]: Finished difference Result 20365 states and 27892 transitions. [2022-11-25 23:59:39,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 23:59:39,577 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 3 states have call successors, (44), 2 states have call predecessors, (44), 1 states have return successors, (41), 3 states have call predecessors, (41), 3 states have call successors, (41) Word has length 351 [2022-11-25 23:59:39,577 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:59:39,642 INFO L225 Difference]: With dead ends: 20365 [2022-11-25 23:59:39,642 INFO L226 Difference]: Without dead ends: 12208 [2022-11-25 23:59:39,682 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 23:59:39,682 INFO L413 NwaCegarLoop]: 2918 mSDtfsCounter, 1625 mSDsluCounter, 1516 mSDsCounter, 0 mSdLazyCounter, 712 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1625 SdHoareTripleChecker+Valid, 4434 SdHoareTripleChecker+Invalid, 721 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 712 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2022-11-25 23:59:39,683 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1625 Valid, 4434 Invalid, 721 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 712 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2022-11-25 23:59:39,696 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12208 states. [2022-11-25 23:59:40,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12208 to 12126. [2022-11-25 23:59:40,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12126 states, 7592 states have (on average 1.3050579557428872) internal successors, (9908), 7703 states have internal predecessors, (9908), 3324 states have call successors, (3324), 1217 states have call predecessors, (3324), 1207 states have return successors, (3344), 3226 states have call predecessors, (3344), 3320 states have call successors, (3344) [2022-11-25 23:59:40,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12126 states to 12126 states and 16576 transitions. [2022-11-25 23:59:40,741 INFO L78 Accepts]: Start accepts. Automaton has 12126 states and 16576 transitions. Word has length 351 [2022-11-25 23:59:40,742 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:59:40,742 INFO L495 AbstractCegarLoop]: Abstraction has 12126 states and 16576 transitions. [2022-11-25 23:59:40,742 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 3 states have call successors, (44), 2 states have call predecessors, (44), 1 states have return successors, (41), 3 states have call predecessors, (41), 3 states have call successors, (41) [2022-11-25 23:59:40,742 INFO L276 IsEmpty]: Start isEmpty. Operand 12126 states and 16576 transitions. [2022-11-25 23:59:40,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 410 [2022-11-25 23:59:40,755 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:59:40,756 INFO L195 NwaCegarLoop]: trace histogram [28, 20, 20, 20, 20, 20, 20, 11, 11, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:59:40,756 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-25 23:59:40,756 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-25 23:59:40,756 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:59:40,757 INFO L85 PathProgramCache]: Analyzing trace with hash 1880652537, now seen corresponding path program 1 times [2022-11-25 23:59:40,757 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:59:40,757 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1585060445] [2022-11-25 23:59:40,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:59:40,758 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:59:40,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:59:41,287 INFO L134 CoverageAnalysis]: Checked inductivity of 2151 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 2132 trivial. 0 not checked. [2022-11-25 23:59:41,288 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:59:41,288 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1585060445] [2022-11-25 23:59:41,288 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1585060445] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:59:41,288 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:59:41,288 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 23:59:41,289 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1101444373] [2022-11-25 23:59:41,289 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:59:41,289 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 23:59:41,289 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:59:41,290 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 23:59:41,291 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-25 23:59:41,291 INFO L87 Difference]: Start difference. First operand 12126 states and 16576 transitions. Second operand has 4 states, 4 states have (on average 27.75) internal successors, (111), 4 states have internal predecessors, (111), 3 states have call successors, (48), 2 states have call predecessors, (48), 1 states have return successors, (45), 3 states have call predecessors, (45), 3 states have call successors, (45) [2022-11-25 23:59:46,275 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:59:50,520 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:59:51,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:59:51,088 INFO L93 Difference]: Finished difference Result 27916 states and 38131 transitions. [2022-11-25 23:59:51,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 23:59:51,088 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 27.75) internal successors, (111), 4 states have internal predecessors, (111), 3 states have call successors, (48), 2 states have call predecessors, (48), 1 states have return successors, (45), 3 states have call predecessors, (45), 3 states have call successors, (45) Word has length 409 [2022-11-25 23:59:51,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:59:51,178 INFO L225 Difference]: With dead ends: 27916 [2022-11-25 23:59:51,178 INFO L226 Difference]: Without dead ends: 16072 [2022-11-25 23:59:51,226 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-25 23:59:51,227 INFO L413 NwaCegarLoop]: 2947 mSDtfsCounter, 1703 mSDsluCounter, 2232 mSDsCounter, 0 mSdLazyCounter, 1607 mSolverCounterSat, 37 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1705 SdHoareTripleChecker+Valid, 5179 SdHoareTripleChecker+Invalid, 1645 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 1607 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.5s IncrementalHoareTripleChecker+Time [2022-11-25 23:59:51,227 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1705 Valid, 5179 Invalid, 1645 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 1607 Invalid, 1 Unknown, 0 Unchecked, 8.5s Time] [2022-11-25 23:59:51,243 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16072 states. [2022-11-25 23:59:52,657 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16072 to 15985. [2022-11-25 23:59:52,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15985 states, 10011 states have (on average 1.3050644291279592) internal successors, (13065), 10160 states have internal predecessors, (13065), 4346 states have call successors, (4346), 1637 states have call predecessors, (4346), 1625 states have return successors, (4374), 4214 states have call predecessors, (4374), 4342 states have call successors, (4374) [2022-11-25 23:59:52,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15985 states to 15985 states and 21785 transitions. [2022-11-25 23:59:52,746 INFO L78 Accepts]: Start accepts. Automaton has 15985 states and 21785 transitions. Word has length 409 [2022-11-25 23:59:52,747 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:59:52,747 INFO L495 AbstractCegarLoop]: Abstraction has 15985 states and 21785 transitions. [2022-11-25 23:59:52,747 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 27.75) internal successors, (111), 4 states have internal predecessors, (111), 3 states have call successors, (48), 2 states have call predecessors, (48), 1 states have return successors, (45), 3 states have call predecessors, (45), 3 states have call successors, (45) [2022-11-25 23:59:52,747 INFO L276 IsEmpty]: Start isEmpty. Operand 15985 states and 21785 transitions. [2022-11-25 23:59:52,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 477 [2022-11-25 23:59:52,764 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:59:52,765 INFO L195 NwaCegarLoop]: trace histogram [27, 20, 20, 20, 20, 20, 20, 20, 20, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:59:52,765 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-25 23:59:52,765 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-25 23:59:52,765 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:59:52,766 INFO L85 PathProgramCache]: Analyzing trace with hash 1975433551, now seen corresponding path program 1 times [2022-11-25 23:59:52,766 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:59:52,766 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [94618616] [2022-11-25 23:59:52,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:59:52,767 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:59:52,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:59:53,349 INFO L134 CoverageAnalysis]: Checked inductivity of 2776 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 2754 trivial. 0 not checked. [2022-11-25 23:59:53,349 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:59:53,349 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [94618616] [2022-11-25 23:59:53,349 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [94618616] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:59:53,349 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:59:53,350 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 23:59:53,350 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1737268046] [2022-11-25 23:59:53,350 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:59:53,351 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 23:59:53,351 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:59:53,352 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 23:59:53,352 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-25 23:59:53,352 INFO L87 Difference]: Start difference. First operand 15985 states and 21785 transitions. Second operand has 4 states, 4 states have (on average 27.75) internal successors, (111), 4 states have internal predecessors, (111), 3 states have call successors, (47), 2 states have call predecessors, (47), 1 states have return successors, (45), 3 states have call predecessors, (45), 3 states have call successors, (45) [2022-11-25 23:59:58,382 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.49s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:00:00,990 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:00:02,999 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 [] [2022-11-26 00:00:03,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:00:03,530 INFO L93 Difference]: Finished difference Result 36630 states and 49616 transitions. [2022-11-26 00:00:03,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-26 00:00:03,531 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 27.75) internal successors, (111), 4 states have internal predecessors, (111), 3 states have call successors, (47), 2 states have call predecessors, (47), 1 states have return successors, (45), 3 states have call predecessors, (45), 3 states have call successors, (45) Word has length 476 [2022-11-26 00:00:03,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:00:03,636 INFO L225 Difference]: With dead ends: 36630 [2022-11-26 00:00:03,637 INFO L226 Difference]: Without dead ends: 20927 [2022-11-26 00:00:03,696 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-26 00:00:03,696 INFO L413 NwaCegarLoop]: 2401 mSDtfsCounter, 1232 mSDsluCounter, 3231 mSDsCounter, 0 mSdLazyCounter, 1387 mSolverCounterSat, 10 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1232 SdHoareTripleChecker+Valid, 5632 SdHoareTripleChecker+Invalid, 1399 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 1387 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.8s IncrementalHoareTripleChecker+Time [2022-11-26 00:00:03,697 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1232 Valid, 5632 Invalid, 1399 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 1387 Invalid, 2 Unknown, 0 Unchecked, 8.8s Time] [2022-11-26 00:00:03,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20927 states. [2022-11-26 00:00:05,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20927 to 20818. [2022-11-26 00:00:05,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20818 states, 12977 states have (on average 1.2977575710873084) internal successors, (16841), 13167 states have internal predecessors, (16841), 5576 states have call successors, (5576), 2279 states have call predecessors, (5576), 2262 states have return successors, (5607), 5403 states have call predecessors, (5607), 5572 states have call successors, (5607) [2022-11-26 00:00:05,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20818 states to 20818 states and 28024 transitions. [2022-11-26 00:00:05,715 INFO L78 Accepts]: Start accepts. Automaton has 20818 states and 28024 transitions. Word has length 476 [2022-11-26 00:00:05,716 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:00:05,716 INFO L495 AbstractCegarLoop]: Abstraction has 20818 states and 28024 transitions. [2022-11-26 00:00:05,717 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 27.75) internal successors, (111), 4 states have internal predecessors, (111), 3 states have call successors, (47), 2 states have call predecessors, (47), 1 states have return successors, (45), 3 states have call predecessors, (45), 3 states have call successors, (45) [2022-11-26 00:00:05,717 INFO L276 IsEmpty]: Start isEmpty. Operand 20818 states and 28024 transitions. [2022-11-26 00:00:05,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 477 [2022-11-26 00:00:05,741 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:00:05,742 INFO L195 NwaCegarLoop]: trace histogram [27, 20, 20, 20, 20, 20, 20, 20, 20, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:00:05,742 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-26 00:00:05,742 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-26 00:00:05,743 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:00:05,743 INFO L85 PathProgramCache]: Analyzing trace with hash 376666883, now seen corresponding path program 1 times [2022-11-26 00:00:05,743 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:00:05,744 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1130000365] [2022-11-26 00:00:05,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:00:05,744 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:00:05,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:00:07,630 INFO L134 CoverageAnalysis]: Checked inductivity of 2775 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2775 trivial. 0 not checked. [2022-11-26 00:00:07,630 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:00:07,631 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1130000365] [2022-11-26 00:00:07,631 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1130000365] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:00:07,631 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:00:07,631 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-26 00:00:07,631 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1104269694] [2022-11-26 00:00:07,632 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:00:07,632 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-26 00:00:07,632 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:00:07,633 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-26 00:00:07,633 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-26 00:00:07,633 INFO L87 Difference]: Start difference. First operand 20818 states and 28024 transitions. Second operand has 5 states, 5 states have (on average 19.4) internal successors, (97), 4 states have internal predecessors, (97), 2 states have call successors, (47), 3 states have call predecessors, (47), 1 states have return successors, (44), 2 states have call predecessors, (44), 2 states have call successors, (44) [2022-11-26 00:00:12,434 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.44s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:00:15,599 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:00:17,611 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:00:19,330 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.72s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:00:21,867 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:00:22,260 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:00:22,260 INFO L93 Difference]: Finished difference Result 20850 states and 28055 transitions. [2022-11-26 00:00:22,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-26 00:00:22,261 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.4) internal successors, (97), 4 states have internal predecessors, (97), 2 states have call successors, (47), 3 states have call predecessors, (47), 1 states have return successors, (44), 2 states have call predecessors, (44), 2 states have call successors, (44) Word has length 476 [2022-11-26 00:00:22,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:00:22,348 INFO L225 Difference]: With dead ends: 20850 [2022-11-26 00:00:22,348 INFO L226 Difference]: Without dead ends: 20848 [2022-11-26 00:00:22,362 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 [2022-11-26 00:00:22,363 INFO L413 NwaCegarLoop]: 2024 mSDtfsCounter, 1489 mSDsluCounter, 5538 mSDsCounter, 0 mSdLazyCounter, 1013 mSolverCounterSat, 3 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1492 SdHoareTripleChecker+Valid, 7562 SdHoareTripleChecker+Invalid, 1019 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1013 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.3s IncrementalHoareTripleChecker+Time [2022-11-26 00:00:22,363 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1492 Valid, 7562 Invalid, 1019 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1013 Invalid, 3 Unknown, 0 Unchecked, 13.3s Time] [2022-11-26 00:00:22,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20848 states. [2022-11-26 00:00:24,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20848 to 20818. [2022-11-26 00:00:24,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20818 states, 12977 states have (on average 1.2969099175464283) internal successors, (16830), 13167 states have internal predecessors, (16830), 5576 states have call successors, (5576), 2279 states have call predecessors, (5576), 2262 states have return successors, (5607), 5403 states have call predecessors, (5607), 5572 states have call successors, (5607) [2022-11-26 00:00:24,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20818 states to 20818 states and 28013 transitions. [2022-11-26 00:00:24,233 INFO L78 Accepts]: Start accepts. Automaton has 20818 states and 28013 transitions. Word has length 476 [2022-11-26 00:00:24,234 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:00:24,234 INFO L495 AbstractCegarLoop]: Abstraction has 20818 states and 28013 transitions. [2022-11-26 00:00:24,234 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.4) internal successors, (97), 4 states have internal predecessors, (97), 2 states have call successors, (47), 3 states have call predecessors, (47), 1 states have return successors, (44), 2 states have call predecessors, (44), 2 states have call successors, (44) [2022-11-26 00:00:24,235 INFO L276 IsEmpty]: Start isEmpty. Operand 20818 states and 28013 transitions. [2022-11-26 00:00:24,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 461 [2022-11-26 00:00:24,262 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:00:24,262 INFO L195 NwaCegarLoop]: trace histogram [31, 20, 20, 20, 20, 20, 20, 12, 12, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:00:24,262 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-26 00:00:24,263 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-26 00:00:24,263 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:00:24,263 INFO L85 PathProgramCache]: Analyzing trace with hash 1111936562, now seen corresponding path program 1 times [2022-11-26 00:00:24,264 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:00:24,264 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2009418848] [2022-11-26 00:00:24,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:00:24,264 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:00:24,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:00:24,924 INFO L134 CoverageAnalysis]: Checked inductivity of 2393 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 2361 trivial. 0 not checked. [2022-11-26 00:00:24,924 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:00:24,924 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2009418848] [2022-11-26 00:00:24,926 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2009418848] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:00:24,927 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:00:24,927 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-26 00:00:24,927 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1967242067] [2022-11-26 00:00:24,928 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:00:24,928 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-26 00:00:24,929 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:00:24,929 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-26 00:00:24,929 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-26 00:00:24,930 INFO L87 Difference]: Start difference. First operand 20818 states and 28013 transitions. Second operand has 4 states, 4 states have (on average 32.25) internal successors, (129), 4 states have internal predecessors, (129), 3 states have call successors, (54), 2 states have call predecessors, (54), 1 states have return successors, (51), 3 states have call predecessors, (51), 3 states have call successors, (51) [2022-11-26 00:00:29,097 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.35s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:00:30,675 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.58s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:00:35,619 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.55s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:00:36,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:00:36,363 INFO L93 Difference]: Finished difference Result 46342 states and 62376 transitions. [2022-11-26 00:00:36,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-26 00:00:36,363 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 32.25) internal successors, (129), 4 states have internal predecessors, (129), 3 states have call successors, (54), 2 states have call predecessors, (54), 1 states have return successors, (51), 3 states have call predecessors, (51), 3 states have call successors, (51) Word has length 460 [2022-11-26 00:00:36,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:00:36,488 INFO L225 Difference]: With dead ends: 46342 [2022-11-26 00:00:36,488 INFO L226 Difference]: Without dead ends: 25806 [2022-11-26 00:00:36,554 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-26 00:00:36,555 INFO L413 NwaCegarLoop]: 2951 mSDtfsCounter, 1646 mSDsluCounter, 2250 mSDsCounter, 0 mSdLazyCounter, 1621 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1646 SdHoareTripleChecker+Valid, 5201 SdHoareTripleChecker+Invalid, 1635 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 1621 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.6s IncrementalHoareTripleChecker+Time [2022-11-26 00:00:36,555 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1646 Valid, 5201 Invalid, 1635 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 1621 Invalid, 0 Unknown, 0 Unchecked, 9.6s Time] [2022-11-26 00:00:36,583 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25806 states. [2022-11-26 00:00:38,558 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25806 to 25701. [2022-11-26 00:00:38,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25701 states, 16042 states have (on average 1.2977808253334995) internal successors, (20819), 16279 states have internal predecessors, (20819), 6855 states have call successors, (6855), 2821 states have call predecessors, (6855), 2801 states have return successors, (6892), 6639 states have call predecessors, (6892), 6851 states have call successors, (6892) [2022-11-26 00:00:38,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25701 states to 25701 states and 34566 transitions. [2022-11-26 00:00:38,673 INFO L78 Accepts]: Start accepts. Automaton has 25701 states and 34566 transitions. Word has length 460 [2022-11-26 00:00:38,673 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:00:38,674 INFO L495 AbstractCegarLoop]: Abstraction has 25701 states and 34566 transitions. [2022-11-26 00:00:38,674 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 32.25) internal successors, (129), 4 states have internal predecessors, (129), 3 states have call successors, (54), 2 states have call predecessors, (54), 1 states have return successors, (51), 3 states have call predecessors, (51), 3 states have call successors, (51) [2022-11-26 00:00:38,674 INFO L276 IsEmpty]: Start isEmpty. Operand 25701 states and 34566 transitions. [2022-11-26 00:00:38,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 503 [2022-11-26 00:00:38,689 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:00:38,689 INFO L195 NwaCegarLoop]: trace histogram [28, 20, 20, 20, 20, 20, 20, 20, 20, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:00:38,689 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-11-26 00:00:38,690 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-26 00:00:38,690 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:00:38,690 INFO L85 PathProgramCache]: Analyzing trace with hash -985744535, now seen corresponding path program 1 times [2022-11-26 00:00:38,690 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:00:38,690 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [936018433] [2022-11-26 00:00:38,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:00:38,691 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:00:38,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:00:39,585 INFO L134 CoverageAnalysis]: Checked inductivity of 2829 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2829 trivial. 0 not checked. [2022-11-26 00:00:39,585 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:00:39,585 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [936018433] [2022-11-26 00:00:39,586 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [936018433] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:00:39,586 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:00:39,586 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-26 00:00:39,586 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1952793292] [2022-11-26 00:00:39,586 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:00:39,587 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-26 00:00:39,587 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:00:39,588 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-26 00:00:39,588 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-26 00:00:39,588 INFO L87 Difference]: Start difference. First operand 25701 states and 34566 transitions. Second operand has 5 states, 5 states have (on average 22.4) internal successors, (112), 4 states have internal predecessors, (112), 2 states have call successors, (52), 2 states have call predecessors, (52), 2 states have return successors, (49), 2 states have call predecessors, (49), 1 states have call successors, (49) [2022-11-26 00:00:45,214 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:00:46,516 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:00:46,516 INFO L93 Difference]: Finished difference Result 51170 states and 68845 transitions. [2022-11-26 00:00:46,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-26 00:00:46,523 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.4) internal successors, (112), 4 states have internal predecessors, (112), 2 states have call successors, (52), 2 states have call predecessors, (52), 2 states have return successors, (49), 2 states have call predecessors, (49), 1 states have call successors, (49) Word has length 502 [2022-11-26 00:00:46,524 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:00:46,636 INFO L225 Difference]: With dead ends: 51170 [2022-11-26 00:00:46,636 INFO L226 Difference]: Without dead ends: 25751 [2022-11-26 00:00:46,693 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-26 00:00:46,694 INFO L413 NwaCegarLoop]: 1549 mSDtfsCounter, 1 mSDsluCounter, 4636 mSDsCounter, 0 mSdLazyCounter, 953 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 6185 SdHoareTripleChecker+Invalid, 954 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 953 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2022-11-26 00:00:46,695 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 6185 Invalid, 954 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 953 Invalid, 1 Unknown, 0 Unchecked, 5.0s Time] [2022-11-26 00:00:46,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25751 states. [2022-11-26 00:00:48,334 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25751 to 25729. [2022-11-26 00:00:48,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25729 states, 16061 states have (on average 1.2974285536392502) internal successors, (20838), 16302 states have internal predecessors, (20838), 6855 states have call successors, (6855), 2821 states have call predecessors, (6855), 2810 states have return successors, (6906), 6644 states have call predecessors, (6906), 6851 states have call successors, (6906) [2022-11-26 00:00:48,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25729 states to 25729 states and 34599 transitions. [2022-11-26 00:00:48,439 INFO L78 Accepts]: Start accepts. Automaton has 25729 states and 34599 transitions. Word has length 502 [2022-11-26 00:00:48,439 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:00:48,440 INFO L495 AbstractCegarLoop]: Abstraction has 25729 states and 34599 transitions. [2022-11-26 00:00:48,440 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.4) internal successors, (112), 4 states have internal predecessors, (112), 2 states have call successors, (52), 2 states have call predecessors, (52), 2 states have return successors, (49), 2 states have call predecessors, (49), 1 states have call successors, (49) [2022-11-26 00:00:48,440 INFO L276 IsEmpty]: Start isEmpty. Operand 25729 states and 34599 transitions. [2022-11-26 00:00:48,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 509 [2022-11-26 00:00:48,458 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:00:48,458 INFO L195 NwaCegarLoop]: trace histogram [28, 20, 20, 20, 20, 20, 20, 20, 20, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:00:48,458 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-11-26 00:00:48,459 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-26 00:00:48,459 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:00:48,459 INFO L85 PathProgramCache]: Analyzing trace with hash -429386552, now seen corresponding path program 1 times [2022-11-26 00:00:48,459 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:00:48,459 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1334255316] [2022-11-26 00:00:48,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:00:48,460 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:00:48,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:00:49,189 INFO L134 CoverageAnalysis]: Checked inductivity of 2829 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 2805 trivial. 0 not checked. [2022-11-26 00:00:49,189 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:00:49,189 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1334255316] [2022-11-26 00:00:49,190 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1334255316] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:00:49,190 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:00:49,190 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-26 00:00:49,190 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [872789545] [2022-11-26 00:00:49,190 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:00:49,191 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-26 00:00:49,191 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:00:49,192 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-26 00:00:49,192 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:00:49,192 INFO L87 Difference]: Start difference. First operand 25729 states and 34599 transitions. Second operand has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 3 states have internal predecessors, (127), 3 states have call successors, (55), 2 states have call predecessors, (55), 1 states have return successors, (52), 3 states have call predecessors, (52), 3 states have call successors, (52) [2022-11-26 00:00:55,156 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.63s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:00:57,169 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:00:58,803 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:00:59,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:00:59,897 INFO L93 Difference]: Finished difference Result 71609 states and 96524 transitions. [2022-11-26 00:00:59,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-26 00:00:59,903 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 3 states have internal predecessors, (127), 3 states have call successors, (55), 2 states have call predecessors, (55), 1 states have return successors, (52), 3 states have call predecessors, (52), 3 states have call successors, (52) Word has length 508 [2022-11-26 00:00:59,903 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:01:00,138 INFO L225 Difference]: With dead ends: 71609 [2022-11-26 00:01:00,138 INFO L226 Difference]: Without dead ends: 46162 [2022-11-26 00:01:00,236 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:01:00,238 INFO L413 NwaCegarLoop]: 2893 mSDtfsCounter, 1558 mSDsluCounter, 1522 mSDsCounter, 0 mSdLazyCounter, 704 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1558 SdHoareTripleChecker+Valid, 4415 SdHoareTripleChecker+Invalid, 715 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 704 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.4s IncrementalHoareTripleChecker+Time [2022-11-26 00:01:00,238 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1558 Valid, 4415 Invalid, 715 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 704 Invalid, 1 Unknown, 0 Unchecked, 7.4s Time] [2022-11-26 00:01:00,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46162 states. [2022-11-26 00:01:03,322 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46162 to 46133. [2022-11-26 00:01:03,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46133 states, 29249 states have (on average 1.298950391466375) internal successors, (37993), 29559 states have internal predecessors, (37993), 11921 states have call successors, (11921), 4980 states have call predecessors, (11921), 4960 states have return successors, (12027), 11662 states have call predecessors, (12027), 11917 states have call successors, (12027) [2022-11-26 00:01:03,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46133 states to 46133 states and 61941 transitions. [2022-11-26 00:01:03,671 INFO L78 Accepts]: Start accepts. Automaton has 46133 states and 61941 transitions. Word has length 508 [2022-11-26 00:01:03,671 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:01:03,671 INFO L495 AbstractCegarLoop]: Abstraction has 46133 states and 61941 transitions. [2022-11-26 00:01:03,671 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 3 states have internal predecessors, (127), 3 states have call successors, (55), 2 states have call predecessors, (55), 1 states have return successors, (52), 3 states have call predecessors, (52), 3 states have call successors, (52) [2022-11-26 00:01:03,672 INFO L276 IsEmpty]: Start isEmpty. Operand 46133 states and 61941 transitions. [2022-11-26 00:01:03,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 532 [2022-11-26 00:01:03,692 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:01:03,692 INFO L195 NwaCegarLoop]: trace histogram [30, 21, 21, 20, 20, 20, 20, 20, 20, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:01:03,693 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-11-26 00:01:03,693 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-26 00:01:03,693 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:01:03,694 INFO L85 PathProgramCache]: Analyzing trace with hash 640949207, now seen corresponding path program 1 times [2022-11-26 00:01:03,694 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:01:03,694 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2006256271] [2022-11-26 00:01:03,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:01:03,695 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:01:04,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:01:05,150 INFO L134 CoverageAnalysis]: Checked inductivity of 3034 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3034 trivial. 0 not checked. [2022-11-26 00:01:05,150 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:01:05,150 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2006256271] [2022-11-26 00:01:05,150 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2006256271] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:01:05,150 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:01:05,151 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-26 00:01:05,151 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1007047091] [2022-11-26 00:01:05,151 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:01:05,152 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-26 00:01:05,152 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:01:05,153 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-26 00:01:05,153 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-26 00:01:05,153 INFO L87 Difference]: Start difference. First operand 46133 states and 61941 transitions. Second operand has 4 states, 4 states have (on average 29.5) internal successors, (118), 4 states have internal predecessors, (118), 2 states have call successors, (55), 2 states have call predecessors, (55), 2 states have return successors, (52), 2 states have call predecessors, (52), 1 states have call successors, (52) [2022-11-26 00:01:10,943 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:01:12,571 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.63s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:01:15,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:01:15,153 INFO L93 Difference]: Finished difference Result 93664 states and 126242 transitions. [2022-11-26 00:01:15,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-26 00:01:15,156 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 29.5) internal successors, (118), 4 states have internal predecessors, (118), 2 states have call successors, (55), 2 states have call predecessors, (55), 2 states have return successors, (52), 2 states have call predecessors, (52), 1 states have call successors, (52) Word has length 531 [2022-11-26 00:01:15,156 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:01:15,406 INFO L225 Difference]: With dead ends: 93664 [2022-11-26 00:01:15,406 INFO L226 Difference]: Without dead ends: 47263 [2022-11-26 00:01:15,563 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-26 00:01:15,564 INFO L413 NwaCegarLoop]: 1554 mSDtfsCounter, 162 mSDsluCounter, 2972 mSDsCounter, 0 mSdLazyCounter, 774 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 178 SdHoareTripleChecker+Valid, 4526 SdHoareTripleChecker+Invalid, 815 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 774 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.1s IncrementalHoareTripleChecker+Time [2022-11-26 00:01:15,564 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [178 Valid, 4526 Invalid, 815 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 774 Invalid, 0 Unknown, 0 Unchecked, 6.1s Time] [2022-11-26 00:01:15,603 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47263 states. [2022-11-26 00:01:19,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47263 to 47263. [2022-11-26 00:01:19,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47263 states, 30049 states have (on average 1.3013078638224234) internal successors, (39103), 30379 states have internal predecessors, (39103), 12231 states have call successors, (12231), 5000 states have call predecessors, (12231), 4980 states have return successors, (12357), 11972 states have call predecessors, (12357), 12227 states have call successors, (12357) [2022-11-26 00:01:19,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47263 states to 47263 states and 63691 transitions. [2022-11-26 00:01:19,292 INFO L78 Accepts]: Start accepts. Automaton has 47263 states and 63691 transitions. Word has length 531 [2022-11-26 00:01:19,292 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:01:19,292 INFO L495 AbstractCegarLoop]: Abstraction has 47263 states and 63691 transitions. [2022-11-26 00:01:19,293 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 29.5) internal successors, (118), 4 states have internal predecessors, (118), 2 states have call successors, (55), 2 states have call predecessors, (55), 2 states have return successors, (52), 2 states have call predecessors, (52), 1 states have call successors, (52) [2022-11-26 00:01:19,293 INFO L276 IsEmpty]: Start isEmpty. Operand 47263 states and 63691 transitions. [2022-11-26 00:01:19,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 533 [2022-11-26 00:01:19,322 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:01:19,323 INFO L195 NwaCegarLoop]: trace histogram [30, 21, 21, 20, 20, 20, 20, 20, 20, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:01:19,323 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-11-26 00:01:19,323 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-26 00:01:19,324 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:01:19,324 INFO L85 PathProgramCache]: Analyzing trace with hash -1424063915, now seen corresponding path program 1 times [2022-11-26 00:01:19,324 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:01:19,325 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1282768444] [2022-11-26 00:01:19,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:01:19,325 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:01:20,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:01:22,029 INFO L134 CoverageAnalysis]: Checked inductivity of 3034 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3034 trivial. 0 not checked. [2022-11-26 00:01:22,029 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:01:22,029 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1282768444] [2022-11-26 00:01:22,029 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1282768444] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:01:22,029 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:01:22,030 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-26 00:01:22,030 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1603671114] [2022-11-26 00:01:22,030 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:01:22,031 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-26 00:01:22,031 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:01:22,032 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-26 00:01:22,032 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-11-26 00:01:22,032 INFO L87 Difference]: Start difference. First operand 47263 states and 63691 transitions. Second operand has 8 states, 7 states have (on average 17.0) internal successors, (119), 6 states have internal predecessors, (119), 2 states have call successors, (55), 3 states have call predecessors, (55), 2 states have return successors, (52), 3 states have call predecessors, (52), 2 states have call successors, (52) [2022-11-26 00:01:29,090 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 [] [2022-11-26 00:01:31,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:01:31,164 INFO L93 Difference]: Finished difference Result 50657 states and 68082 transitions. [2022-11-26 00:01:31,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-26 00:01:31,165 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 17.0) internal successors, (119), 6 states have internal predecessors, (119), 2 states have call successors, (55), 3 states have call predecessors, (55), 2 states have return successors, (52), 3 states have call predecessors, (52), 2 states have call successors, (52) Word has length 532 [2022-11-26 00:01:31,166 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:01:31,409 INFO L225 Difference]: With dead ends: 50657 [2022-11-26 00:01:31,409 INFO L226 Difference]: Without dead ends: 50655 [2022-11-26 00:01:31,436 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2022-11-26 00:01:31,438 INFO L413 NwaCegarLoop]: 1765 mSDtfsCounter, 686 mSDsluCounter, 8092 mSDsCounter, 0 mSdLazyCounter, 1510 mSolverCounterSat, 179 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 688 SdHoareTripleChecker+Valid, 9857 SdHoareTripleChecker+Invalid, 1690 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 179 IncrementalHoareTripleChecker+Valid, 1510 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.4s IncrementalHoareTripleChecker+Time [2022-11-26 00:01:31,439 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [688 Valid, 9857 Invalid, 1690 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [179 Valid, 1510 Invalid, 1 Unknown, 0 Unchecked, 6.4s Time] [2022-11-26 00:01:31,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50655 states.