./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-can-softing-softing.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_334c2491-e6bd-4949-a521-428ac8e5643f/bin/utaipan-ByfvJB40ur/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_334c2491-e6bd-4949-a521-428ac8e5643f/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_334c2491-e6bd-4949-a521-428ac8e5643f/bin/utaipan-ByfvJB40ur/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_334c2491-e6bd-4949-a521-428ac8e5643f/bin/utaipan-ByfvJB40ur/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-can-softing-softing.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_334c2491-e6bd-4949-a521-428ac8e5643f/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_334c2491-e6bd-4949-a521-428ac8e5643f/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 2a992b8f7caf2083ee3b7e2acdd5fd118d6f91728d6dd0ef901811e301ef25da --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-38b53e6 [2022-11-26 01:04:23,761 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-26 01:04:23,764 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-26 01:04:23,784 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-26 01:04:23,785 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-26 01:04:23,803 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-26 01:04:23,804 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-26 01:04:23,806 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-26 01:04:23,807 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-26 01:04:23,808 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-26 01:04:23,809 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-26 01:04:23,811 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-26 01:04:23,811 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-26 01:04:23,812 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-26 01:04:23,813 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-26 01:04:23,814 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-26 01:04:23,815 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-26 01:04:23,816 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-26 01:04:23,818 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-26 01:04:23,820 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-26 01:04:23,821 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-26 01:04:23,828 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-26 01:04:23,829 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-26 01:04:23,830 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-26 01:04:23,833 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-26 01:04:23,833 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-26 01:04:23,834 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-26 01:04:23,835 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-26 01:04:23,835 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-26 01:04:23,836 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-26 01:04:23,836 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-26 01:04:23,837 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-26 01:04:23,838 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-26 01:04:23,839 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-26 01:04:23,840 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-26 01:04:23,840 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-26 01:04:23,841 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-26 01:04:23,841 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-26 01:04:23,842 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-26 01:04:23,843 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-26 01:04:23,844 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-26 01:04:23,845 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_334c2491-e6bd-4949-a521-428ac8e5643f/bin/utaipan-ByfvJB40ur/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-26 01:04:23,895 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-26 01:04:23,896 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-26 01:04:23,896 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-26 01:04:23,896 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-26 01:04:23,897 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-26 01:04:23,898 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-26 01:04:23,898 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-26 01:04:23,898 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-26 01:04:23,898 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-26 01:04:23,899 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-26 01:04:23,900 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-26 01:04:23,900 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-26 01:04:23,900 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-26 01:04:23,901 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-26 01:04:23,901 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-26 01:04:23,901 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-26 01:04:23,901 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-26 01:04:23,901 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-26 01:04:23,902 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-26 01:04:23,902 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-26 01:04:23,903 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-26 01:04:23,903 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-26 01:04:23,903 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-26 01:04:23,903 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-26 01:04:23,903 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-26 01:04:23,904 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-26 01:04:23,904 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-26 01:04:23,904 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-26 01:04:23,905 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-26 01:04:23,905 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-26 01:04:23,905 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-26 01:04:23,905 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-26 01:04:23,906 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-26 01:04:23,906 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-26 01:04:23,906 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-26 01:04:23,906 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-26 01:04:23,906 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-26 01:04:23,907 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-26 01:04:23,907 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_334c2491-e6bd-4949-a521-428ac8e5643f/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_334c2491-e6bd-4949-a521-428ac8e5643f/bin/utaipan-ByfvJB40ur Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2a992b8f7caf2083ee3b7e2acdd5fd118d6f91728d6dd0ef901811e301ef25da [2022-11-26 01:04:24,215 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-26 01:04:24,247 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-26 01:04:24,249 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-26 01:04:24,251 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-26 01:04:24,253 INFO L275 PluginConnector]: CDTParser initialized [2022-11-26 01:04:24,255 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_334c2491-e6bd-4949-a521-428ac8e5643f/bin/utaipan-ByfvJB40ur/../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-can-softing-softing.cil.i [2022-11-26 01:04:27,314 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-26 01:04:28,024 INFO L351 CDTParser]: Found 1 translation units. [2022-11-26 01:04:28,025 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_334c2491-e6bd-4949-a521-428ac8e5643f/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-can-softing-softing.cil.i [2022-11-26 01:04:28,081 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_334c2491-e6bd-4949-a521-428ac8e5643f/bin/utaipan-ByfvJB40ur/data/e286dfd50/335a7a6183864178b91cd33cf30e4511/FLAG4421086a8 [2022-11-26 01:04:28,104 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_334c2491-e6bd-4949-a521-428ac8e5643f/bin/utaipan-ByfvJB40ur/data/e286dfd50/335a7a6183864178b91cd33cf30e4511 [2022-11-26 01:04:28,109 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-26 01:04:28,110 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-26 01:04:28,114 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-26 01:04:28,114 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-26 01:04:28,118 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-26 01:04:28,119 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 01:04:28" (1/1) ... [2022-11-26 01:04:28,120 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5654d616 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:04:28, skipping insertion in model container [2022-11-26 01:04:28,120 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 01:04:28" (1/1) ... [2022-11-26 01:04:28,128 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-26 01:04:28,299 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-26 01:04:29,000 WARN L623 FunctionHandler]: Unknown extern function kstrtoull [2022-11-26 01:04:29,212 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock [2022-11-26 01:04:29,224 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_bh [2022-11-26 01:04:29,236 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_unlock [2022-11-26 01:04:29,258 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_unlock_bh [2022-11-26 01:04:29,428 WARN L623 FunctionHandler]: Unknown extern function netpoll_trap [2022-11-26 01:04:29,430 WARN L623 FunctionHandler]: Unknown extern function __netif_schedule [2022-11-26 01:04:29,442 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-11-26 01:04:29,447 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 01:04:29,527 WARN L623 FunctionHandler]: Unknown extern function kfree_skb [2022-11-26 01:04:29,625 WARN L623 FunctionHandler]: Unknown extern function ioread8 [2022-11-26 01:04:29,626 WARN L623 FunctionHandler]: Unknown extern function iowrite8 [2022-11-26 01:04:29,632 WARN L623 FunctionHandler]: Unknown extern function ioread8 [2022-11-26 01:04:29,633 WARN L623 FunctionHandler]: Unknown extern function iowrite8 [2022-11-26 01:04:29,641 WARN L623 FunctionHandler]: Unknown extern function ioread8 [2022-11-26 01:04:29,642 WARN L623 FunctionHandler]: Unknown extern function ioread8 [2022-11-26 01:04:29,648 WARN L623 FunctionHandler]: Unknown extern function iowrite8 [2022-11-26 01:04:29,650 WARN L623 FunctionHandler]: Unknown extern function can_put_echo_skb [2022-11-26 01:04:29,655 WARN L623 FunctionHandler]: Unknown extern function alloc_can_skb [2022-11-26 01:04:29,656 WARN L623 FunctionHandler]: Unknown extern function netif_rx [2022-11-26 01:04:29,662 WARN L623 FunctionHandler]: Unknown extern function ioread8 [2022-11-26 01:04:29,663 WARN L623 FunctionHandler]: Unknown extern function iowrite8 [2022-11-26 01:04:29,667 WARN L623 FunctionHandler]: Unknown extern function ioread8 [2022-11-26 01:04:29,668 WARN L623 FunctionHandler]: Unknown extern function ioread8 [2022-11-26 01:04:29,669 WARN L623 FunctionHandler]: Unknown extern function iowrite8 [2022-11-26 01:04:29,674 WARN L623 FunctionHandler]: Unknown extern function iowrite8 [2022-11-26 01:04:29,677 WARN L623 FunctionHandler]: Unknown extern function can_bus_off [2022-11-26 01:04:29,683 WARN L623 FunctionHandler]: Unknown extern function can_get_echo_skb [2022-11-26 01:04:29,701 WARN L623 FunctionHandler]: Unknown extern function ioread8 [2022-11-26 01:04:29,702 WARN L623 FunctionHandler]: Unknown extern function iowrite8 [2022-11-26 01:04:29,707 WARN L623 FunctionHandler]: Unknown extern function ioread8 [2022-11-26 01:04:29,715 WARN L623 FunctionHandler]: Unknown extern function iowrite8 [2022-11-26 01:04:29,720 WARN L623 FunctionHandler]: Unknown extern function open_candev [2022-11-26 01:04:29,738 WARN L623 FunctionHandler]: Unknown extern function dev_alert [2022-11-26 01:04:29,746 WARN L623 FunctionHandler]: Unknown extern function mutex_lock_interruptible_nested [2022-11-26 01:04:29,768 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-26 01:04:29,776 WARN L623 FunctionHandler]: Unknown extern function mutex_lock_interruptible_nested [2022-11-26 01:04:29,778 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-26 01:04:29,781 WARN L623 FunctionHandler]: Unknown extern function memcmp [2022-11-26 01:04:29,781 WARN L623 FunctionHandler]: Unknown extern function dev_alert [2022-11-26 01:04:29,786 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-26 01:04:29,794 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-26 01:04:29,802 WARN L623 FunctionHandler]: Unknown extern function sprintf [2022-11-26 01:04:29,815 WARN L623 FunctionHandler]: Unknown extern function sprintf [2022-11-26 01:04:29,822 WARN L623 FunctionHandler]: Unknown extern function sprintf [2022-11-26 01:04:29,833 WARN L623 FunctionHandler]: Unknown extern function mutex_lock_interruptible_nested [2022-11-26 01:04:29,835 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-26 01:04:29,836 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-26 01:04:29,858 WARN L623 FunctionHandler]: Unknown extern function alloc_candev [2022-11-26 01:04:29,863 WARN L623 FunctionHandler]: Unknown extern function dev_alert [2022-11-26 01:04:29,873 WARN L623 FunctionHandler]: Unknown extern function dev_alert [2022-11-26 01:04:29,878 WARN L623 FunctionHandler]: Unknown extern function free_candev [2022-11-26 01:04:29,884 WARN L623 FunctionHandler]: Unknown extern function sprintf [2022-11-26 01:04:29,893 WARN L623 FunctionHandler]: Unknown extern function sprintf [2022-11-26 01:04:29,910 WARN L623 FunctionHandler]: Unknown extern function sprintf [2022-11-26 01:04:29,920 WARN L623 FunctionHandler]: Unknown extern function sprintf [2022-11-26 01:04:29,928 WARN L623 FunctionHandler]: Unknown extern function sprintf [2022-11-26 01:04:29,936 WARN L623 FunctionHandler]: Unknown extern function sprintf [2022-11-26 01:04:29,945 WARN L623 FunctionHandler]: Unknown extern function sprintf [2022-11-26 01:04:29,952 WARN L623 FunctionHandler]: Unknown extern function sprintf [2022-11-26 01:04:29,963 WARN L623 FunctionHandler]: Unknown extern function sysfs_remove_group [2022-11-26 01:04:29,964 WARN L623 FunctionHandler]: Unknown extern function iounmap [2022-11-26 01:04:29,964 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-26 01:04:29,970 WARN L623 FunctionHandler]: Unknown extern function dev_warn [2022-11-26 01:04:29,972 WARN L623 FunctionHandler]: Unknown extern function dev_warn [2022-11-26 01:04:29,976 WARN L623 FunctionHandler]: Unknown extern function __mutex_init [2022-11-26 01:04:29,978 WARN L623 FunctionHandler]: Unknown extern function __raw_spin_lock_init [2022-11-26 01:04:29,979 WARN L623 FunctionHandler]: Unknown extern function platform_get_resource [2022-11-26 01:04:29,982 WARN L623 FunctionHandler]: Unknown extern function ioremap_nocache [2022-11-26 01:04:29,987 WARN L623 FunctionHandler]: Unknown extern function dev_alert [2022-11-26 01:04:29,988 WARN L623 FunctionHandler]: Unknown extern function platform_get_resource [2022-11-26 01:04:29,989 WARN L623 FunctionHandler]: Unknown extern function dev_alert [2022-11-26 01:04:29,989 WARN L623 FunctionHandler]: Unknown extern function sysfs_create_group [2022-11-26 01:04:29,993 WARN L623 FunctionHandler]: Unknown extern function dev_alert [2022-11-26 01:04:29,995 WARN L623 FunctionHandler]: Unknown extern function dev_alert [2022-11-26 01:04:29,996 WARN L623 FunctionHandler]: Unknown extern function free_candev [2022-11-26 01:04:29,996 WARN L623 FunctionHandler]: Unknown extern function dev_alert [2022-11-26 01:04:29,997 WARN L623 FunctionHandler]: Unknown extern function _dev_info [2022-11-26 01:04:29,998 WARN L623 FunctionHandler]: Unknown extern function sysfs_remove_group [2022-11-26 01:04:29,999 WARN L623 FunctionHandler]: Unknown extern function iounmap [2022-11-26 01:04:29,999 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-26 01:04:30,518 WARN L623 FunctionHandler]: Unknown extern function ldv_initialize [2022-11-26 01:04:30,522 WARN L623 FunctionHandler]: Unknown extern function ldv_switch_to_interrupt_context [2022-11-26 01:04:30,523 WARN L623 FunctionHandler]: Unknown extern function ldv_switch_to_process_context [2022-11-26 01:04:30,529 WARN L623 FunctionHandler]: Unknown extern function ldv_pre_probe [2022-11-26 01:04:30,624 WARN L623 FunctionHandler]: Unknown extern function free_irq [2022-11-26 01:04:30,625 WARN L623 FunctionHandler]: Unknown extern function ldv_free_irq [2022-11-26 01:04:30,627 WARN L623 FunctionHandler]: Unknown extern function request_threaded_irq [2022-11-26 01:04:30,627 WARN L623 FunctionHandler]: Unknown extern function free_irq [2022-11-26 01:04:30,628 WARN L623 FunctionHandler]: Unknown extern function ldv_free_irq [2022-11-26 01:04:30,628 WARN L623 FunctionHandler]: Unknown extern function register_candev [2022-11-26 01:04:30,629 WARN L623 FunctionHandler]: Unknown extern function unregister_candev [2022-11-26 01:04:30,630 WARN L623 FunctionHandler]: Unknown extern function __platform_driver_register [2022-11-26 01:04:30,630 WARN L623 FunctionHandler]: Unknown extern function platform_driver_unregister [2022-11-26 01:04:30,650 WARN L623 FunctionHandler]: Unknown extern function __bad_percpu_size [2022-11-26 01:04:30,740 WARN L623 FunctionHandler]: Unknown extern function iowrite16 [2022-11-26 01:04:30,740 WARN L623 FunctionHandler]: Unknown extern function iowrite8 [2022-11-26 01:04:30,741 WARN L623 FunctionHandler]: Unknown extern function iowrite8 [2022-11-26 01:04:30,741 WARN L623 FunctionHandler]: Unknown extern function ioread8 [2022-11-26 01:04:30,742 WARN L623 FunctionHandler]: Unknown extern function ioread8 [2022-11-26 01:04:30,742 WARN L623 FunctionHandler]: Unknown extern function ioread16 [2022-11-26 01:04:30,743 WARN L623 FunctionHandler]: Unknown extern function usleep_range [2022-11-26 01:04:30,744 WARN L623 FunctionHandler]: Unknown extern function dev_alert [2022-11-26 01:04:30,751 WARN L623 FunctionHandler]: Unknown extern function dev_alert [2022-11-26 01:04:30,752 WARN L623 FunctionHandler]: Unknown extern function iowrite16 [2022-11-26 01:04:30,752 WARN L623 FunctionHandler]: Unknown extern function iowrite16 [2022-11-26 01:04:30,753 WARN L623 FunctionHandler]: Unknown extern function ioread16 [2022-11-26 01:04:30,756 WARN L623 FunctionHandler]: Unknown extern function usleep_range [2022-11-26 01:04:30,757 WARN L623 FunctionHandler]: Unknown extern function dev_alert [2022-11-26 01:04:30,766 WARN L623 FunctionHandler]: Unknown extern function request_firmware [2022-11-26 01:04:30,770 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-26 01:04:30,772 WARN L623 FunctionHandler]: Unknown extern function strncmp [2022-11-26 01:04:30,775 WARN L623 FunctionHandler]: Unknown extern function krealloc [2022-11-26 01:04:30,776 WARN L623 FunctionHandler]: Unknown extern function memcmp [2022-11-26 01:04:30,777 WARN L623 FunctionHandler]: Unknown extern function dev_alert [2022-11-26 01:04:30,778 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-26 01:04:30,779 WARN L623 FunctionHandler]: Unknown extern function release_firmware [2022-11-26 01:04:30,780 WARN L623 FunctionHandler]: Unknown extern function _dev_info [2022-11-26 01:04:30,781 WARN L623 FunctionHandler]: Unknown extern function request_firmware [2022-11-26 01:04:30,781 WARN L623 FunctionHandler]: Unknown extern function dev_alert [2022-11-26 01:04:30,789 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-26 01:04:30,791 WARN L623 FunctionHandler]: Unknown extern function dev_alert [2022-11-26 01:04:30,791 WARN L623 FunctionHandler]: Unknown extern function strncmp [2022-11-26 01:04:30,792 WARN L623 FunctionHandler]: Unknown extern function dev_alert [2022-11-26 01:04:30,794 WARN L623 FunctionHandler]: Unknown extern function dev_alert [2022-11-26 01:04:30,795 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-11-26 01:04:30,796 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-11-26 01:04:30,797 WARN L623 FunctionHandler]: Unknown extern function iowrite16 [2022-11-26 01:04:30,797 WARN L623 FunctionHandler]: Unknown extern function iowrite8 [2022-11-26 01:04:30,798 WARN L623 FunctionHandler]: Unknown extern function ioread16 [2022-11-26 01:04:30,798 WARN L623 FunctionHandler]: Unknown extern function dev_alert [2022-11-26 01:04:30,799 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-11-26 01:04:30,799 WARN L623 FunctionHandler]: Unknown extern function iowrite8 [2022-11-26 01:04:30,800 WARN L623 FunctionHandler]: Unknown extern function release_firmware [2022-11-26 01:04:30,800 WARN L623 FunctionHandler]: Unknown extern function _dev_info [2022-11-26 01:04:30,806 WARN L623 FunctionHandler]: Unknown extern function iowrite8 [2022-11-26 01:04:30,806 WARN L623 FunctionHandler]: Unknown extern function iowrite8 [2022-11-26 01:04:30,807 WARN L623 FunctionHandler]: Unknown extern function iowrite8 [2022-11-26 01:04:30,807 WARN L623 FunctionHandler]: Unknown extern function iowrite8 [2022-11-26 01:04:30,811 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-11-26 01:04:30,811 WARN L623 FunctionHandler]: Unknown extern function ioread16 [2022-11-26 01:04:30,812 WARN L623 FunctionHandler]: Unknown extern function ioread16 [2022-11-26 01:04:30,812 WARN L623 FunctionHandler]: Unknown extern function ioread16 [2022-11-26 01:04:30,813 WARN L623 FunctionHandler]: Unknown extern function ioread16 [2022-11-26 01:04:30,814 WARN L623 FunctionHandler]: Unknown extern function ioread16 [2022-11-26 01:04:30,820 WARN L623 FunctionHandler]: Unknown extern function ktime_get [2022-11-26 01:04:30,824 WARN L623 FunctionHandler]: Unknown extern function ktime_get [2022-11-26 01:04:30,825 WARN L623 FunctionHandler]: Unknown extern function ktime_get_real [2022-11-26 01:04:30,835 WARN L623 FunctionHandler]: Unknown extern function mutex_lock_interruptible_nested [2022-11-26 01:04:30,837 WARN L623 FunctionHandler]: Unknown extern function close_candev [2022-11-26 01:04:30,838 WARN L623 FunctionHandler]: Unknown extern function dev_alert [2022-11-26 01:04:30,839 WARN L623 FunctionHandler]: Unknown extern function iowrite16 [2022-11-26 01:04:30,841 WARN L623 FunctionHandler]: Unknown extern function iowrite16 [2022-11-26 01:04:30,841 WARN L623 FunctionHandler]: Unknown extern function iowrite16 [2022-11-26 01:04:30,842 WARN L623 FunctionHandler]: Unknown extern function iowrite16 [2022-11-26 01:04:30,848 WARN L623 FunctionHandler]: Unknown extern function iowrite16 [2022-11-26 01:04:30,848 WARN L623 FunctionHandler]: Unknown extern function iowrite16 [2022-11-26 01:04:30,849 WARN L623 FunctionHandler]: Unknown extern function iowrite16 [2022-11-26 01:04:30,849 WARN L623 FunctionHandler]: Unknown extern function iowrite16 [2022-11-26 01:04:30,850 WARN L623 FunctionHandler]: Unknown extern function iowrite16 [2022-11-26 01:04:30,850 WARN L623 FunctionHandler]: Unknown extern function iowrite16 [2022-11-26 01:04:30,850 WARN L623 FunctionHandler]: Unknown extern function iowrite16 [2022-11-26 01:04:30,851 WARN L623 FunctionHandler]: Unknown extern function iowrite16 [2022-11-26 01:04:30,851 WARN L623 FunctionHandler]: Unknown extern function iowrite16 [2022-11-26 01:04:30,852 WARN L623 FunctionHandler]: Unknown extern function iowrite16 [2022-11-26 01:04:30,853 WARN L623 FunctionHandler]: Unknown extern function iowrite16 [2022-11-26 01:04:30,858 WARN L623 FunctionHandler]: Unknown extern function iowrite16 [2022-11-26 01:04:30,858 WARN L623 FunctionHandler]: Unknown extern function iowrite16 [2022-11-26 01:04:30,859 WARN L623 FunctionHandler]: Unknown extern function iowrite16 [2022-11-26 01:04:30,859 WARN L623 FunctionHandler]: Unknown extern function iowrite16 [2022-11-26 01:04:30,860 WARN L623 FunctionHandler]: Unknown extern function iowrite16 [2022-11-26 01:04:30,860 WARN L623 FunctionHandler]: Unknown extern function iowrite16 [2022-11-26 01:04:30,861 WARN L623 FunctionHandler]: Unknown extern function iowrite16 [2022-11-26 01:04:30,862 WARN L623 FunctionHandler]: Unknown extern function iowrite16 [2022-11-26 01:04:30,862 WARN L623 FunctionHandler]: Unknown extern function iowrite16 [2022-11-26 01:04:30,862 WARN L623 FunctionHandler]: Unknown extern function iowrite16 [2022-11-26 01:04:30,863 WARN L623 FunctionHandler]: Unknown extern function iowrite16 [2022-11-26 01:04:30,863 WARN L623 FunctionHandler]: Unknown extern function iowrite16 [2022-11-26 01:04:30,864 WARN L623 FunctionHandler]: Unknown extern function iowrite16 [2022-11-26 01:04:30,864 WARN L623 FunctionHandler]: Unknown extern function iowrite16 [2022-11-26 01:04:30,865 WARN L623 FunctionHandler]: Unknown extern function iowrite16 [2022-11-26 01:04:30,865 WARN L623 FunctionHandler]: Unknown extern function iowrite16 [2022-11-26 01:04:30,865 WARN L623 FunctionHandler]: Unknown extern function iowrite16 [2022-11-26 01:04:30,866 WARN L623 FunctionHandler]: Unknown extern function iowrite16 [2022-11-26 01:04:30,866 WARN L623 FunctionHandler]: Unknown extern function iowrite16 [2022-11-26 01:04:30,866 WARN L623 FunctionHandler]: Unknown extern function iowrite16 [2022-11-26 01:04:30,867 WARN L623 FunctionHandler]: Unknown extern function iowrite16 [2022-11-26 01:04:30,867 WARN L623 FunctionHandler]: Unknown extern function iowrite16 [2022-11-26 01:04:30,867 WARN L623 FunctionHandler]: Unknown extern function iowrite16 [2022-11-26 01:04:30,869 WARN L623 FunctionHandler]: Unknown extern function iowrite8 [2022-11-26 01:04:30,870 WARN L623 FunctionHandler]: Unknown extern function iowrite8 [2022-11-26 01:04:30,870 WARN L623 FunctionHandler]: Unknown extern function iowrite8 [2022-11-26 01:04:30,871 WARN L623 FunctionHandler]: Unknown extern function open_candev [2022-11-26 01:04:30,872 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-26 01:04:30,873 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-26 01:04:30,873 WARN L623 FunctionHandler]: Unknown extern function dev_close [2022-11-26 01:04:30,929 WARN L623 FunctionHandler]: Unknown extern function ldv_check_alloc_flags [2022-11-26 01:04:30,930 WARN L623 FunctionHandler]: Unknown extern function ldv_after_alloc [2022-11-26 01:04:30,939 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-26 01:04:31,505 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_334c2491-e6bd-4949-a521-428ac8e5643f/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-can-softing-softing.cil.i[375187,375200] [2022-11-26 01:04:31,509 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_334c2491-e6bd-4949-a521-428ac8e5643f/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-can-softing-softing.cil.i[375356,375369] [2022-11-26 01:04:31,509 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_334c2491-e6bd-4949-a521-428ac8e5643f/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-can-softing-softing.cil.i[375523,375536] [2022-11-26 01:04:31,510 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_334c2491-e6bd-4949-a521-428ac8e5643f/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-can-softing-softing.cil.i[375691,375704] [2022-11-26 01:04:31,520 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-26 01:04:31,565 INFO L203 MainTranslator]: Completed pre-run [2022-11-26 01:04:31,735 WARN L623 FunctionHandler]: Unknown extern function kstrtoull [2022-11-26 01:04:31,736 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock [2022-11-26 01:04:31,737 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_bh [2022-11-26 01:04:31,737 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_unlock [2022-11-26 01:04:31,738 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_unlock_bh [2022-11-26 01:04:31,743 WARN L623 FunctionHandler]: Unknown extern function netpoll_trap [2022-11-26 01:04:31,743 WARN L623 FunctionHandler]: Unknown extern function __netif_schedule [2022-11-26 01:04:31,744 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-11-26 01:04:31,745 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 01:04:31,748 WARN L623 FunctionHandler]: Unknown extern function kfree_skb [2022-11-26 01:04:31,750 WARN L623 FunctionHandler]: Unknown extern function ioread8 [2022-11-26 01:04:31,751 WARN L623 FunctionHandler]: Unknown extern function iowrite8 [2022-11-26 01:04:31,752 WARN L623 FunctionHandler]: Unknown extern function ioread8 [2022-11-26 01:04:31,752 WARN L623 FunctionHandler]: Unknown extern function iowrite8 [2022-11-26 01:04:31,764 WARN L623 FunctionHandler]: Unknown extern function ioread8 [2022-11-26 01:04:31,765 WARN L623 FunctionHandler]: Unknown extern function ioread8 [2022-11-26 01:04:31,771 WARN L623 FunctionHandler]: Unknown extern function iowrite8 [2022-11-26 01:04:31,772 WARN L623 FunctionHandler]: Unknown extern function can_put_echo_skb [2022-11-26 01:04:31,774 WARN L623 FunctionHandler]: Unknown extern function alloc_can_skb [2022-11-26 01:04:31,775 WARN L623 FunctionHandler]: Unknown extern function netif_rx [2022-11-26 01:04:31,776 WARN L623 FunctionHandler]: Unknown extern function ioread8 [2022-11-26 01:04:31,777 WARN L623 FunctionHandler]: Unknown extern function iowrite8 [2022-11-26 01:04:31,779 WARN L623 FunctionHandler]: Unknown extern function ioread8 [2022-11-26 01:04:31,779 WARN L623 FunctionHandler]: Unknown extern function ioread8 [2022-11-26 01:04:31,780 WARN L623 FunctionHandler]: Unknown extern function iowrite8 [2022-11-26 01:04:31,784 WARN L623 FunctionHandler]: Unknown extern function iowrite8 [2022-11-26 01:04:31,786 WARN L623 FunctionHandler]: Unknown extern function can_bus_off [2022-11-26 01:04:31,789 WARN L623 FunctionHandler]: Unknown extern function can_get_echo_skb [2022-11-26 01:04:31,794 WARN L623 FunctionHandler]: Unknown extern function ioread8 [2022-11-26 01:04:31,795 WARN L623 FunctionHandler]: Unknown extern function iowrite8 [2022-11-26 01:04:31,795 WARN L623 FunctionHandler]: Unknown extern function ioread8 [2022-11-26 01:04:31,796 WARN L623 FunctionHandler]: Unknown extern function iowrite8 [2022-11-26 01:04:31,796 WARN L623 FunctionHandler]: Unknown extern function open_candev [2022-11-26 01:04:31,799 WARN L623 FunctionHandler]: Unknown extern function dev_alert [2022-11-26 01:04:31,800 WARN L623 FunctionHandler]: Unknown extern function mutex_lock_interruptible_nested [2022-11-26 01:04:31,803 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-26 01:04:31,804 WARN L623 FunctionHandler]: Unknown extern function mutex_lock_interruptible_nested [2022-11-26 01:04:31,805 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-26 01:04:31,807 WARN L623 FunctionHandler]: Unknown extern function memcmp [2022-11-26 01:04:31,809 WARN L623 FunctionHandler]: Unknown extern function dev_alert [2022-11-26 01:04:31,814 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-26 01:04:31,818 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-26 01:04:31,819 WARN L623 FunctionHandler]: Unknown extern function sprintf [2022-11-26 01:04:31,820 WARN L623 FunctionHandler]: Unknown extern function sprintf [2022-11-26 01:04:31,822 WARN L623 FunctionHandler]: Unknown extern function sprintf [2022-11-26 01:04:31,831 WARN L623 FunctionHandler]: Unknown extern function mutex_lock_interruptible_nested [2022-11-26 01:04:31,831 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-26 01:04:31,832 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-26 01:04:31,836 WARN L623 FunctionHandler]: Unknown extern function alloc_candev [2022-11-26 01:04:31,836 WARN L623 FunctionHandler]: Unknown extern function dev_alert [2022-11-26 01:04:31,846 WARN L623 FunctionHandler]: Unknown extern function dev_alert [2022-11-26 01:04:31,847 WARN L623 FunctionHandler]: Unknown extern function free_candev [2022-11-26 01:04:31,848 WARN L623 FunctionHandler]: Unknown extern function sprintf [2022-11-26 01:04:31,850 WARN L623 FunctionHandler]: Unknown extern function sprintf [2022-11-26 01:04:31,854 WARN L623 FunctionHandler]: Unknown extern function sprintf [2022-11-26 01:04:31,856 WARN L623 FunctionHandler]: Unknown extern function sprintf [2022-11-26 01:04:31,858 WARN L623 FunctionHandler]: Unknown extern function sprintf [2022-11-26 01:04:31,860 WARN L623 FunctionHandler]: Unknown extern function sprintf [2022-11-26 01:04:31,865 WARN L623 FunctionHandler]: Unknown extern function sprintf [2022-11-26 01:04:31,869 WARN L623 FunctionHandler]: Unknown extern function sprintf [2022-11-26 01:04:31,874 WARN L623 FunctionHandler]: Unknown extern function sysfs_remove_group [2022-11-26 01:04:31,874 WARN L623 FunctionHandler]: Unknown extern function iounmap [2022-11-26 01:04:31,875 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-26 01:04:31,876 WARN L623 FunctionHandler]: Unknown extern function dev_warn [2022-11-26 01:04:31,877 WARN L623 FunctionHandler]: Unknown extern function dev_warn [2022-11-26 01:04:31,878 WARN L623 FunctionHandler]: Unknown extern function __mutex_init [2022-11-26 01:04:31,879 WARN L623 FunctionHandler]: Unknown extern function __raw_spin_lock_init [2022-11-26 01:04:31,880 WARN L623 FunctionHandler]: Unknown extern function platform_get_resource [2022-11-26 01:04:31,885 WARN L623 FunctionHandler]: Unknown extern function ioremap_nocache [2022-11-26 01:04:31,886 WARN L623 FunctionHandler]: Unknown extern function dev_alert [2022-11-26 01:04:31,887 WARN L623 FunctionHandler]: Unknown extern function platform_get_resource [2022-11-26 01:04:31,887 WARN L623 FunctionHandler]: Unknown extern function dev_alert [2022-11-26 01:04:31,889 WARN L623 FunctionHandler]: Unknown extern function sysfs_create_group [2022-11-26 01:04:31,890 WARN L623 FunctionHandler]: Unknown extern function dev_alert [2022-11-26 01:04:31,891 WARN L623 FunctionHandler]: Unknown extern function dev_alert [2022-11-26 01:04:31,892 WARN L623 FunctionHandler]: Unknown extern function free_candev [2022-11-26 01:04:31,892 WARN L623 FunctionHandler]: Unknown extern function dev_alert [2022-11-26 01:04:31,895 WARN L623 FunctionHandler]: Unknown extern function _dev_info [2022-11-26 01:04:31,898 WARN L623 FunctionHandler]: Unknown extern function sysfs_remove_group [2022-11-26 01:04:31,898 WARN L623 FunctionHandler]: Unknown extern function iounmap [2022-11-26 01:04:31,898 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-26 01:04:31,931 WARN L623 FunctionHandler]: Unknown extern function ldv_initialize [2022-11-26 01:04:31,934 WARN L623 FunctionHandler]: Unknown extern function ldv_switch_to_interrupt_context [2022-11-26 01:04:31,935 WARN L623 FunctionHandler]: Unknown extern function ldv_switch_to_process_context [2022-11-26 01:04:31,939 WARN L623 FunctionHandler]: Unknown extern function ldv_pre_probe [2022-11-26 01:04:32,003 WARN L623 FunctionHandler]: Unknown extern function free_irq [2022-11-26 01:04:32,003 WARN L623 FunctionHandler]: Unknown extern function ldv_free_irq [2022-11-26 01:04:32,004 WARN L623 FunctionHandler]: Unknown extern function request_threaded_irq [2022-11-26 01:04:32,004 WARN L623 FunctionHandler]: Unknown extern function free_irq [2022-11-26 01:04:32,005 WARN L623 FunctionHandler]: Unknown extern function ldv_free_irq [2022-11-26 01:04:32,005 WARN L623 FunctionHandler]: Unknown extern function register_candev [2022-11-26 01:04:32,005 WARN L623 FunctionHandler]: Unknown extern function unregister_candev [2022-11-26 01:04:32,006 WARN L623 FunctionHandler]: Unknown extern function __platform_driver_register [2022-11-26 01:04:32,006 WARN L623 FunctionHandler]: Unknown extern function platform_driver_unregister [2022-11-26 01:04:32,007 WARN L623 FunctionHandler]: Unknown extern function __bad_percpu_size [2022-11-26 01:04:32,010 WARN L623 FunctionHandler]: Unknown extern function iowrite16 [2022-11-26 01:04:32,011 WARN L623 FunctionHandler]: Unknown extern function iowrite8 [2022-11-26 01:04:32,011 WARN L623 FunctionHandler]: Unknown extern function iowrite8 [2022-11-26 01:04:32,011 WARN L623 FunctionHandler]: Unknown extern function ioread8 [2022-11-26 01:04:32,020 WARN L623 FunctionHandler]: Unknown extern function ioread8 [2022-11-26 01:04:32,022 WARN L623 FunctionHandler]: Unknown extern function ioread16 [2022-11-26 01:04:32,024 WARN L623 FunctionHandler]: Unknown extern function usleep_range [2022-11-26 01:04:32,024 WARN L623 FunctionHandler]: Unknown extern function dev_alert [2022-11-26 01:04:32,026 WARN L623 FunctionHandler]: Unknown extern function dev_alert [2022-11-26 01:04:32,027 WARN L623 FunctionHandler]: Unknown extern function iowrite16 [2022-11-26 01:04:32,028 WARN L623 FunctionHandler]: Unknown extern function iowrite16 [2022-11-26 01:04:32,030 WARN L623 FunctionHandler]: Unknown extern function ioread16 [2022-11-26 01:04:32,030 WARN L623 FunctionHandler]: Unknown extern function usleep_range [2022-11-26 01:04:32,031 WARN L623 FunctionHandler]: Unknown extern function dev_alert [2022-11-26 01:04:32,035 WARN L623 FunctionHandler]: Unknown extern function request_firmware [2022-11-26 01:04:32,037 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-26 01:04:32,039 WARN L623 FunctionHandler]: Unknown extern function strncmp [2022-11-26 01:04:32,040 WARN L623 FunctionHandler]: Unknown extern function krealloc [2022-11-26 01:04:32,041 WARN L623 FunctionHandler]: Unknown extern function memcmp [2022-11-26 01:04:32,041 WARN L623 FunctionHandler]: Unknown extern function dev_alert [2022-11-26 01:04:32,042 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-26 01:04:32,042 WARN L623 FunctionHandler]: Unknown extern function release_firmware [2022-11-26 01:04:32,043 WARN L623 FunctionHandler]: Unknown extern function _dev_info [2022-11-26 01:04:32,044 WARN L623 FunctionHandler]: Unknown extern function request_firmware [2022-11-26 01:04:32,044 WARN L623 FunctionHandler]: Unknown extern function dev_alert [2022-11-26 01:04:32,046 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-26 01:04:32,047 WARN L623 FunctionHandler]: Unknown extern function dev_alert [2022-11-26 01:04:32,047 WARN L623 FunctionHandler]: Unknown extern function strncmp [2022-11-26 01:04:32,047 WARN L623 FunctionHandler]: Unknown extern function dev_alert [2022-11-26 01:04:32,048 WARN L623 FunctionHandler]: Unknown extern function dev_alert [2022-11-26 01:04:32,053 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-11-26 01:04:32,054 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-11-26 01:04:32,054 WARN L623 FunctionHandler]: Unknown extern function iowrite16 [2022-11-26 01:04:32,055 WARN L623 FunctionHandler]: Unknown extern function iowrite8 [2022-11-26 01:04:32,055 WARN L623 FunctionHandler]: Unknown extern function ioread16 [2022-11-26 01:04:32,056 WARN L623 FunctionHandler]: Unknown extern function dev_alert [2022-11-26 01:04:32,056 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-11-26 01:04:32,057 WARN L623 FunctionHandler]: Unknown extern function iowrite8 [2022-11-26 01:04:32,057 WARN L623 FunctionHandler]: Unknown extern function release_firmware [2022-11-26 01:04:32,057 WARN L623 FunctionHandler]: Unknown extern function _dev_info [2022-11-26 01:04:32,058 WARN L623 FunctionHandler]: Unknown extern function iowrite8 [2022-11-26 01:04:32,059 WARN L623 FunctionHandler]: Unknown extern function iowrite8 [2022-11-26 01:04:32,059 WARN L623 FunctionHandler]: Unknown extern function iowrite8 [2022-11-26 01:04:32,059 WARN L623 FunctionHandler]: Unknown extern function iowrite8 [2022-11-26 01:04:32,064 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-11-26 01:04:32,065 WARN L623 FunctionHandler]: Unknown extern function ioread16 [2022-11-26 01:04:32,065 WARN L623 FunctionHandler]: Unknown extern function ioread16 [2022-11-26 01:04:32,066 WARN L623 FunctionHandler]: Unknown extern function ioread16 [2022-11-26 01:04:32,066 WARN L623 FunctionHandler]: Unknown extern function ioread16 [2022-11-26 01:04:32,067 WARN L623 FunctionHandler]: Unknown extern function ioread16 [2022-11-26 01:04:32,067 WARN L623 FunctionHandler]: Unknown extern function ktime_get [2022-11-26 01:04:32,069 WARN L623 FunctionHandler]: Unknown extern function ktime_get [2022-11-26 01:04:32,069 WARN L623 FunctionHandler]: Unknown extern function ktime_get_real [2022-11-26 01:04:32,075 WARN L623 FunctionHandler]: Unknown extern function mutex_lock_interruptible_nested [2022-11-26 01:04:32,079 WARN L623 FunctionHandler]: Unknown extern function close_candev [2022-11-26 01:04:32,080 WARN L623 FunctionHandler]: Unknown extern function dev_alert [2022-11-26 01:04:32,082 WARN L623 FunctionHandler]: Unknown extern function iowrite16 [2022-11-26 01:04:32,083 WARN L623 FunctionHandler]: Unknown extern function iowrite16 [2022-11-26 01:04:32,083 WARN L623 FunctionHandler]: Unknown extern function iowrite16 [2022-11-26 01:04:32,083 WARN L623 FunctionHandler]: Unknown extern function iowrite16 [2022-11-26 01:04:32,134 WARN L623 FunctionHandler]: Unknown extern function iowrite16 [2022-11-26 01:04:32,134 WARN L623 FunctionHandler]: Unknown extern function iowrite16 [2022-11-26 01:04:32,135 WARN L623 FunctionHandler]: Unknown extern function iowrite16 [2022-11-26 01:04:32,135 WARN L623 FunctionHandler]: Unknown extern function iowrite16 [2022-11-26 01:04:32,135 WARN L623 FunctionHandler]: Unknown extern function iowrite16 [2022-11-26 01:04:32,135 WARN L623 FunctionHandler]: Unknown extern function iowrite16 [2022-11-26 01:04:32,135 WARN L623 FunctionHandler]: Unknown extern function iowrite16 [2022-11-26 01:04:32,136 WARN L623 FunctionHandler]: Unknown extern function iowrite16 [2022-11-26 01:04:32,136 WARN L623 FunctionHandler]: Unknown extern function iowrite16 [2022-11-26 01:04:32,136 WARN L623 FunctionHandler]: Unknown extern function iowrite16 [2022-11-26 01:04:32,137 WARN L623 FunctionHandler]: Unknown extern function iowrite16 [2022-11-26 01:04:32,137 WARN L623 FunctionHandler]: Unknown extern function iowrite16 [2022-11-26 01:04:32,137 WARN L623 FunctionHandler]: Unknown extern function iowrite16 [2022-11-26 01:04:32,138 WARN L623 FunctionHandler]: Unknown extern function iowrite16 [2022-11-26 01:04:32,138 WARN L623 FunctionHandler]: Unknown extern function iowrite16 [2022-11-26 01:04:32,139 WARN L623 FunctionHandler]: Unknown extern function iowrite16 [2022-11-26 01:04:32,139 WARN L623 FunctionHandler]: Unknown extern function iowrite16 [2022-11-26 01:04:32,139 WARN L623 FunctionHandler]: Unknown extern function iowrite16 [2022-11-26 01:04:32,139 WARN L623 FunctionHandler]: Unknown extern function iowrite16 [2022-11-26 01:04:32,140 WARN L623 FunctionHandler]: Unknown extern function iowrite16 [2022-11-26 01:04:32,140 WARN L623 FunctionHandler]: Unknown extern function iowrite16 [2022-11-26 01:04:32,140 WARN L623 FunctionHandler]: Unknown extern function iowrite16 [2022-11-26 01:04:32,140 WARN L623 FunctionHandler]: Unknown extern function iowrite16 [2022-11-26 01:04:32,141 WARN L623 FunctionHandler]: Unknown extern function iowrite16 [2022-11-26 01:04:32,141 WARN L623 FunctionHandler]: Unknown extern function iowrite16 [2022-11-26 01:04:32,142 WARN L623 FunctionHandler]: Unknown extern function iowrite16 [2022-11-26 01:04:32,142 WARN L623 FunctionHandler]: Unknown extern function iowrite16 [2022-11-26 01:04:32,142 WARN L623 FunctionHandler]: Unknown extern function iowrite16 [2022-11-26 01:04:32,142 WARN L623 FunctionHandler]: Unknown extern function iowrite16 [2022-11-26 01:04:32,143 WARN L623 FunctionHandler]: Unknown extern function iowrite16 [2022-11-26 01:04:32,143 WARN L623 FunctionHandler]: Unknown extern function iowrite16 [2022-11-26 01:04:32,143 WARN L623 FunctionHandler]: Unknown extern function iowrite16 [2022-11-26 01:04:32,143 WARN L623 FunctionHandler]: Unknown extern function iowrite16 [2022-11-26 01:04:32,144 WARN L623 FunctionHandler]: Unknown extern function iowrite16 [2022-11-26 01:04:32,144 WARN L623 FunctionHandler]: Unknown extern function iowrite8 [2022-11-26 01:04:32,145 WARN L623 FunctionHandler]: Unknown extern function iowrite8 [2022-11-26 01:04:32,145 WARN L623 FunctionHandler]: Unknown extern function iowrite8 [2022-11-26 01:04:32,146 WARN L623 FunctionHandler]: Unknown extern function open_candev [2022-11-26 01:04:32,147 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-26 01:04:32,147 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-26 01:04:32,148 WARN L623 FunctionHandler]: Unknown extern function dev_close [2022-11-26 01:04:32,155 WARN L623 FunctionHandler]: Unknown extern function ldv_check_alloc_flags [2022-11-26 01:04:32,155 WARN L623 FunctionHandler]: Unknown extern function ldv_after_alloc [2022-11-26 01:04:32,156 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-26 01:04:32,180 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_334c2491-e6bd-4949-a521-428ac8e5643f/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-can-softing-softing.cil.i[375187,375200] [2022-11-26 01:04:32,180 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_334c2491-e6bd-4949-a521-428ac8e5643f/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-can-softing-softing.cil.i[375356,375369] [2022-11-26 01:04:32,181 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_334c2491-e6bd-4949-a521-428ac8e5643f/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-can-softing-softing.cil.i[375523,375536] [2022-11-26 01:04:32,181 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_334c2491-e6bd-4949-a521-428ac8e5643f/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-can-softing-softing.cil.i[375691,375704] [2022-11-26 01:04:32,185 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-26 01:04:32,366 INFO L208 MainTranslator]: Completed translation [2022-11-26 01:04:32,367 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:04:32 WrapperNode [2022-11-26 01:04:32,367 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-26 01:04:32,368 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-26 01:04:32,369 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-26 01:04:32,369 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-26 01:04:32,376 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:04:32" (1/1) ... [2022-11-26 01:04:32,468 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:04:32" (1/1) ... [2022-11-26 01:04:32,730 INFO L138 Inliner]: procedures = 451, calls = 2363, calls flagged for inlining = 231, calls inlined = 218, statements flattened = 6496 [2022-11-26 01:04:32,731 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-26 01:04:32,732 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-26 01:04:32,732 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-26 01:04:32,732 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-26 01:04:32,742 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:04:32" (1/1) ... [2022-11-26 01:04:32,742 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:04:32" (1/1) ... [2022-11-26 01:04:32,797 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:04:32" (1/1) ... [2022-11-26 01:04:32,808 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:04:32" (1/1) ... [2022-11-26 01:04:32,936 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:04:32" (1/1) ... [2022-11-26 01:04:32,955 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:04:32" (1/1) ... [2022-11-26 01:04:32,985 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:04:32" (1/1) ... [2022-11-26 01:04:33,002 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:04:32" (1/1) ... [2022-11-26 01:04:33,034 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-26 01:04:33,035 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-26 01:04:33,035 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-26 01:04:33,036 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-26 01:04:33,037 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:04:32" (1/1) ... [2022-11-26 01:04:33,043 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-26 01:04:33,056 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_334c2491-e6bd-4949-a521-428ac8e5643f/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 01:04:33,071 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_334c2491-e6bd-4949-a521-428ac8e5643f/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-26 01:04:33,083 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_334c2491-e6bd-4949-a521-428ac8e5643f/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-26 01:04:33,122 INFO L130 BoogieDeclarations]: Found specification of procedure softing_reset_chip [2022-11-26 01:04:33,122 INFO L138 BoogieDeclarations]: Found implementation of procedure softing_reset_chip [2022-11-26 01:04:33,122 INFO L130 BoogieDeclarations]: Found specification of procedure strncmp [2022-11-26 01:04:33,122 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_spin_of_softing [2022-11-26 01:04:33,122 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_spin_of_softing [2022-11-26 01:04:33,123 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-11-26 01:04:33,123 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-11-26 01:04:33,123 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2022-11-26 01:04:33,123 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2022-11-26 01:04:33,123 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-26 01:04:33,123 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-26 01:04:33,123 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2022-11-26 01:04:33,123 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2022-11-26 01:04:33,123 INFO L130 BoogieDeclarations]: Found specification of procedure __le16_to_cpup [2022-11-26 01:04:33,124 INFO L138 BoogieDeclarations]: Found implementation of procedure __le16_to_cpup [2022-11-26 01:04:33,124 INFO L130 BoogieDeclarations]: Found specification of procedure usleep_range [2022-11-26 01:04:33,124 INFO L138 BoogieDeclarations]: Found implementation of procedure usleep_range [2022-11-26 01:04:33,124 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-11-26 01:04:33,124 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-11-26 01:04:33,124 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_toio [2022-11-26 01:04:33,124 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_toio [2022-11-26 01:04:33,124 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite16 [2022-11-26 01:04:33,125 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite16 [2022-11-26 01:04:33,125 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite8 [2022-11-26 01:04:33,125 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite8 [2022-11-26 01:04:33,125 INFO L130 BoogieDeclarations]: Found specification of procedure ktime_get [2022-11-26 01:04:33,125 INFO L138 BoogieDeclarations]: Found implementation of procedure ktime_get [2022-11-26 01:04:33,125 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2022-11-26 01:04:33,125 INFO L130 BoogieDeclarations]: Found specification of procedure softing_fct_cmd [2022-11-26 01:04:33,125 INFO L138 BoogieDeclarations]: Found implementation of procedure softing_fct_cmd [2022-11-26 01:04:33,125 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-11-26 01:04:33,126 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-11-26 01:04:33,126 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite32 [2022-11-26 01:04:33,126 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite32 [2022-11-26 01:04:33,126 INFO L130 BoogieDeclarations]: Found specification of procedure canif_is_active [2022-11-26 01:04:33,126 INFO L138 BoogieDeclarations]: Found implementation of procedure canif_is_active [2022-11-26 01:04:33,126 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-11-26 01:04:33,126 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-11-26 01:04:33,126 INFO L130 BoogieDeclarations]: Found specification of procedure platform_get_resource [2022-11-26 01:04:33,126 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_get_resource [2022-11-26 01:04:33,127 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-26 01:04:33,127 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2022-11-26 01:04:33,127 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2022-11-26 01:04:33,127 INFO L130 BoogieDeclarations]: Found specification of procedure softing_netdev_open [2022-11-26 01:04:33,127 INFO L138 BoogieDeclarations]: Found implementation of procedure softing_netdev_open [2022-11-26 01:04:33,127 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-11-26 01:04:33,127 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-11-26 01:04:33,127 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-11-26 01:04:33,128 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~TO~int [2022-11-26 01:04:33,128 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~TO~int [2022-11-26 01:04:33,128 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-26 01:04:33,128 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-11-26 01:04:33,128 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-11-26 01:04:33,128 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-26 01:04:33,128 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-26 01:04:33,128 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-26 01:04:33,129 INFO L130 BoogieDeclarations]: Found specification of procedure open_candev [2022-11-26 01:04:33,129 INFO L138 BoogieDeclarations]: Found implementation of procedure open_candev [2022-11-26 01:04:33,129 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2022-11-26 01:04:33,182 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2022-11-26 01:04:33,182 INFO L130 BoogieDeclarations]: Found specification of procedure softing_netdev_rx [2022-11-26 01:04:33,183 INFO L138 BoogieDeclarations]: Found implementation of procedure softing_netdev_rx [2022-11-26 01:04:33,183 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2022-11-26 01:04:33,183 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2022-11-26 01:04:33,183 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-26 01:04:33,183 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2022-11-26 01:04:33,183 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2022-11-26 01:04:33,183 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2022-11-26 01:04:33,183 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2022-11-26 01:04:33,183 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_2 [2022-11-26 01:04:33,183 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_2 [2022-11-26 01:04:33,183 INFO L130 BoogieDeclarations]: Found specification of procedure softing_card_shutdown [2022-11-26 01:04:33,183 INFO L138 BoogieDeclarations]: Found implementation of procedure softing_card_shutdown [2022-11-26 01:04:33,184 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-26 01:04:33,184 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-11-26 01:04:33,184 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-11-26 01:04:33,184 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-26 01:04:33,184 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-11-26 01:04:33,184 INFO L130 BoogieDeclarations]: Found specification of procedure ioread16 [2022-11-26 01:04:33,184 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread16 [2022-11-26 01:04:33,184 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-11-26 01:04:33,184 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-11-26 01:04:33,184 INFO L130 BoogieDeclarations]: Found specification of procedure ktime_set [2022-11-26 01:04:33,184 INFO L138 BoogieDeclarations]: Found implementation of procedure ktime_set [2022-11-26 01:04:33,184 INFO L130 BoogieDeclarations]: Found specification of procedure softing_netdev_cleanup [2022-11-26 01:04:33,185 INFO L138 BoogieDeclarations]: Found implementation of procedure softing_netdev_cleanup [2022-11-26 01:04:33,185 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2022-11-26 01:04:33,185 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2022-11-26 01:04:33,185 INFO L130 BoogieDeclarations]: Found specification of procedure softing_startstop [2022-11-26 01:04:33,185 INFO L138 BoogieDeclarations]: Found implementation of procedure softing_startstop [2022-11-26 01:04:33,185 INFO L130 BoogieDeclarations]: Found specification of procedure ioread8 [2022-11-26 01:04:33,185 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread8 [2022-11-26 01:04:33,185 INFO L130 BoogieDeclarations]: Found specification of procedure ktime_add_us [2022-11-26 01:04:33,185 INFO L138 BoogieDeclarations]: Found implementation of procedure ktime_add_us [2022-11-26 01:04:33,185 INFO L130 BoogieDeclarations]: Found specification of procedure platform_get_drvdata [2022-11-26 01:04:33,185 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_get_drvdata [2022-11-26 01:04:33,185 INFO L130 BoogieDeclarations]: Found specification of procedure softing_bootloader_command [2022-11-26 01:04:33,185 INFO L138 BoogieDeclarations]: Found implementation of procedure softing_bootloader_command [2022-11-26 01:04:33,186 INFO L130 BoogieDeclarations]: Found specification of procedure request_firmware [2022-11-26 01:04:33,186 INFO L138 BoogieDeclarations]: Found implementation of procedure request_firmware [2022-11-26 01:04:33,186 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_bh_62 [2022-11-26 01:04:33,186 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_bh_62 [2022-11-26 01:04:33,186 INFO L130 BoogieDeclarations]: Found specification of procedure softing_raw2ktime [2022-11-26 01:04:33,186 INFO L138 BoogieDeclarations]: Found implementation of procedure softing_raw2ktime [2022-11-26 01:04:33,186 INFO L130 BoogieDeclarations]: Found specification of procedure free_candev [2022-11-26 01:04:33,186 INFO L138 BoogieDeclarations]: Found implementation of procedure free_candev [2022-11-26 01:04:33,186 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-26 01:04:33,186 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-26 01:04:33,186 INFO L130 BoogieDeclarations]: Found specification of procedure store_output [2022-11-26 01:04:33,186 INFO L138 BoogieDeclarations]: Found implementation of procedure store_output [2022-11-26 01:04:33,187 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-26 01:04:33,187 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-26 01:04:33,187 INFO L130 BoogieDeclarations]: Found specification of procedure softing_pdev_probe [2022-11-26 01:04:33,187 INFO L138 BoogieDeclarations]: Found implementation of procedure softing_pdev_probe [2022-11-26 01:04:33,187 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-26 01:04:33,187 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-26 01:04:33,187 INFO L130 BoogieDeclarations]: Found specification of procedure softing_netdev_stop [2022-11-26 01:04:33,187 INFO L138 BoogieDeclarations]: Found implementation of procedure softing_netdev_stop [2022-11-26 01:04:33,187 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_fromio [2022-11-26 01:04:33,187 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_fromio [2022-11-26 01:04:33,187 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-11-26 01:04:33,188 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-11-26 01:04:33,188 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2022-11-26 01:04:33,188 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2022-11-26 01:04:33,188 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_interruptible_nested [2022-11-26 01:04:33,188 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_interruptible_nested [2022-11-26 01:04:33,188 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-11-26 01:04:33,188 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-11-26 01:04:33,188 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-26 01:04:33,188 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-26 01:04:33,188 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_softing_driver_exit_21_2 [2022-11-26 01:04:33,188 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_softing_driver_exit_21_2 [2022-11-26 01:04:33,188 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2022-11-26 01:04:33,188 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2022-11-26 01:04:33,189 INFO L130 BoogieDeclarations]: Found specification of procedure softing_set_reset_dpram [2022-11-26 01:04:33,189 INFO L138 BoogieDeclarations]: Found implementation of procedure softing_set_reset_dpram [2022-11-26 01:04:33,189 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-26 01:04:33,189 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2022-11-26 01:04:33,189 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2022-11-26 01:04:33,189 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-26 01:04:33,189 INFO L130 BoogieDeclarations]: Found specification of procedure signal_pending [2022-11-26 01:04:33,189 INFO L138 BoogieDeclarations]: Found implementation of procedure signal_pending [2022-11-26 01:04:33,189 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-26 01:04:33,189 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~X~int~TO~int [2022-11-26 01:04:33,189 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~X~int~TO~int [2022-11-26 01:04:33,189 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-11-26 01:04:33,189 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-11-26 01:04:33,190 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-11-26 01:04:33,190 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-11-26 01:04:33,190 INFO L130 BoogieDeclarations]: Found specification of procedure release_firmware [2022-11-26 01:04:33,190 INFO L138 BoogieDeclarations]: Found implementation of procedure release_firmware [2022-11-26 01:04:33,190 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq [2022-11-26 01:04:33,190 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq [2022-11-26 01:04:33,190 INFO L130 BoogieDeclarations]: Found specification of procedure fw_parse [2022-11-26 01:04:33,190 INFO L138 BoogieDeclarations]: Found implementation of procedure fw_parse [2022-11-26 01:04:33,190 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-11-26 01:04:33,190 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-11-26 01:04:33,190 INFO L130 BoogieDeclarations]: Found specification of procedure sysfs_remove_group [2022-11-26 01:04:33,190 INFO L138 BoogieDeclarations]: Found implementation of procedure sysfs_remove_group [2022-11-26 01:04:33,191 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-26 01:04:33,191 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-26 01:04:33,191 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-26 01:04:33,191 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-26 01:04:33,191 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-26 01:04:33,191 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_bh_61 [2022-11-26 01:04:33,191 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_bh_61 [2022-11-26 01:04:33,191 INFO L130 BoogieDeclarations]: Found specification of procedure _softing_fct_cmd [2022-11-26 01:04:33,191 INFO L138 BoogieDeclarations]: Found implementation of procedure _softing_fct_cmd [2022-11-26 01:04:33,191 INFO L130 BoogieDeclarations]: Found specification of procedure __le32_to_cpup [2022-11-26 01:04:33,191 INFO L138 BoogieDeclarations]: Found implementation of procedure __le32_to_cpup [2022-11-26 01:04:33,191 INFO L130 BoogieDeclarations]: Found specification of procedure softing_error_reporting [2022-11-26 01:04:33,191 INFO L138 BoogieDeclarations]: Found implementation of procedure softing_error_reporting [2022-11-26 01:04:33,192 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-11-26 01:04:33,192 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-11-26 01:04:33,192 INFO L130 BoogieDeclarations]: Found specification of procedure softing_pdev_remove [2022-11-26 01:04:33,192 INFO L138 BoogieDeclarations]: Found implementation of procedure softing_pdev_remove [2022-11-26 01:04:33,192 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_spin_of_softing [2022-11-26 01:04:33,192 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_spin_of_softing [2022-11-26 01:04:33,192 INFO L130 BoogieDeclarations]: Found specification of procedure softing_enable_irq [2022-11-26 01:04:33,192 INFO L138 BoogieDeclarations]: Found implementation of procedure softing_enable_irq [2022-11-26 01:04:33,192 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-26 01:04:33,192 INFO L130 BoogieDeclarations]: Found specification of procedure softing_load_fw [2022-11-26 01:04:33,192 INFO L138 BoogieDeclarations]: Found implementation of procedure softing_load_fw [2022-11-26 01:04:33,192 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2022-11-26 01:04:33,192 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2022-11-26 01:04:34,155 INFO L235 CfgBuilder]: Building ICFG [2022-11-26 01:04:34,159 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-26 01:04:36,412 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-26 01:04:39,664 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2022-11-26 01:04:39,765 INFO L276 CfgBuilder]: Performing block encoding [2022-11-26 01:04:41,343 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-26 01:04:41,344 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-26 01:04:41,351 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 01:04:41 BoogieIcfgContainer [2022-11-26 01:04:41,351 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-26 01:04:41,357 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-26 01:04:41,357 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-26 01:04:41,360 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-26 01:04:41,361 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 01:04:28" (1/3) ... [2022-11-26 01:04:41,362 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@74087660 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 01:04:41, skipping insertion in model container [2022-11-26 01:04:41,362 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:04:32" (2/3) ... [2022-11-26 01:04:41,363 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@74087660 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 01:04:41, skipping insertion in model container [2022-11-26 01:04:41,363 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 01:04:41" (3/3) ... [2022-11-26 01:04:41,364 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-can-softing-softing.cil.i [2022-11-26 01:04:41,386 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-26 01:04:41,386 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2022-11-26 01:04:41,496 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-26 01:04:41,504 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;@2d7db220, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-26 01:04:41,505 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-11-26 01:04:41,517 INFO L276 IsEmpty]: Start isEmpty. Operand has 1696 states, 1056 states have (on average 1.3456439393939394) internal successors, (1421), 1070 states have internal predecessors, (1421), 555 states have call successors, (555), 83 states have call predecessors, (555), 82 states have return successors, (547), 547 states have call predecessors, (547), 547 states have call successors, (547) [2022-11-26 01:04:41,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 412 [2022-11-26 01:04:41,562 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 01:04:41,563 INFO L195 NwaCegarLoop]: trace histogram [40, 39, 39, 39, 39, 39, 39, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:04:41,563 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-26 01:04:41,568 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 01:04:41,568 INFO L85 PathProgramCache]: Analyzing trace with hash 1092394810, now seen corresponding path program 1 times [2022-11-26 01:04:41,583 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 01:04:41,583 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [12342289] [2022-11-26 01:04:41,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 01:04:41,584 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 01:04:42,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 01:04:42,784 INFO L134 CoverageAnalysis]: Checked inductivity of 6006 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6006 trivial. 0 not checked. [2022-11-26 01:04:42,785 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 01:04:42,785 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [12342289] [2022-11-26 01:04:42,790 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [12342289] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 01:04:42,790 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 01:04:42,790 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-26 01:04:42,792 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1622850135] [2022-11-26 01:04:42,793 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 01:04:42,800 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-26 01:04:42,801 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 01:04:42,849 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-26 01:04:42,850 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 01:04:42,856 INFO L87 Difference]: Start difference. First operand has 1696 states, 1056 states have (on average 1.3456439393939394) internal successors, (1421), 1070 states have internal predecessors, (1421), 555 states have call successors, (555), 83 states have call predecessors, (555), 82 states have return successors, (547), 547 states have call predecessors, (547), 547 states have call successors, (547) Second operand has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 3 states have call successors, (45), 2 states have call predecessors, (45), 1 states have return successors, (42), 3 states have call predecessors, (42), 3 states have call successors, (42) [2022-11-26 01:04:46,255 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 01:04:47,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 01:04:47,881 INFO L93 Difference]: Finished difference Result 4549 states and 6916 transitions. [2022-11-26 01:04:47,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-26 01:04:47,884 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 3 states have call successors, (45), 2 states have call predecessors, (45), 1 states have return successors, (42), 3 states have call predecessors, (42), 3 states have call successors, (42) Word has length 411 [2022-11-26 01:04:47,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 01:04:47,925 INFO L225 Difference]: With dead ends: 4549 [2022-11-26 01:04:47,925 INFO L226 Difference]: Without dead ends: 2915 [2022-11-26 01:04:47,940 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 01:04:47,943 INFO L413 NwaCegarLoop]: 2620 mSDtfsCounter, 1841 mSDsluCounter, 2239 mSDsCounter, 0 mSdLazyCounter, 627 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1841 SdHoareTripleChecker+Valid, 4859 SdHoareTripleChecker+Invalid, 632 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 627 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2022-11-26 01:04:47,944 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1841 Valid, 4859 Invalid, 632 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4 Valid, 627 Invalid, 1 Unknown, 0 Unchecked, 4.6s Time] [2022-11-26 01:04:47,968 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2915 states. [2022-11-26 01:04:48,209 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2915 to 2888. [2022-11-26 01:04:48,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2888 states, 1811 states have (on average 1.3473219215902816) internal successors, (2440), 1837 states have internal predecessors, (2440), 924 states have call successors, (924), 151 states have call predecessors, (924), 150 states have return successors, (959), 915 states have call predecessors, (959), 920 states have call successors, (959) [2022-11-26 01:04:48,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2888 states to 2888 states and 4323 transitions. [2022-11-26 01:04:48,247 INFO L78 Accepts]: Start accepts. Automaton has 2888 states and 4323 transitions. Word has length 411 [2022-11-26 01:04:48,248 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 01:04:48,249 INFO L495 AbstractCegarLoop]: Abstraction has 2888 states and 4323 transitions. [2022-11-26 01:04:48,249 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 3 states have call successors, (45), 2 states have call predecessors, (45), 1 states have return successors, (42), 3 states have call predecessors, (42), 3 states have call successors, (42) [2022-11-26 01:04:48,249 INFO L276 IsEmpty]: Start isEmpty. Operand 2888 states and 4323 transitions. [2022-11-26 01:04:48,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 412 [2022-11-26 01:04:48,261 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 01:04:48,261 INFO L195 NwaCegarLoop]: trace histogram [40, 39, 39, 39, 39, 39, 39, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:04:48,262 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-26 01:04:48,262 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-26 01:04:48,262 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 01:04:48,263 INFO L85 PathProgramCache]: Analyzing trace with hash -1375566368, now seen corresponding path program 1 times [2022-11-26 01:04:48,263 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 01:04:48,263 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [332814456] [2022-11-26 01:04:48,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 01:04:48,264 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 01:04:48,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 01:04:48,912 INFO L134 CoverageAnalysis]: Checked inductivity of 6006 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6006 trivial. 0 not checked. [2022-11-26 01:04:48,912 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 01:04:48,915 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [332814456] [2022-11-26 01:04:48,918 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [332814456] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 01:04:48,918 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 01:04:48,919 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-26 01:04:48,919 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1257948123] [2022-11-26 01:04:48,919 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 01:04:48,922 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-26 01:04:48,922 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 01:04:48,923 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-26 01:04:48,924 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 01:04:48,924 INFO L87 Difference]: Start difference. First operand 2888 states and 4323 transitions. Second operand has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 3 states have call successors, (44), 2 states have call predecessors, (44), 1 states have return successors, (42), 3 states have call predecessors, (42), 3 states have call successors, (42) [2022-11-26 01:04:53,261 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.67s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 01:04:54,978 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 01:04:54,978 INFO L93 Difference]: Finished difference Result 8419 states and 12602 transitions. [2022-11-26 01:04:54,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-26 01:04:54,979 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 3 states have call successors, (44), 2 states have call predecessors, (44), 1 states have return successors, (42), 3 states have call predecessors, (42), 3 states have call successors, (42) Word has length 411 [2022-11-26 01:04:54,981 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 01:04:55,028 INFO L225 Difference]: With dead ends: 8419 [2022-11-26 01:04:55,028 INFO L226 Difference]: Without dead ends: 5610 [2022-11-26 01:04:55,050 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 01:04:55,051 INFO L413 NwaCegarLoop]: 2665 mSDtfsCounter, 2301 mSDsluCounter, 2151 mSDsCounter, 0 mSdLazyCounter, 634 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2301 SdHoareTripleChecker+Valid, 4816 SdHoareTripleChecker+Invalid, 641 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 634 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2022-11-26 01:04:55,051 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2301 Valid, 4816 Invalid, 641 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 634 Invalid, 0 Unknown, 0 Unchecked, 5.6s Time] [2022-11-26 01:04:55,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5610 states. [2022-11-26 01:04:55,388 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5610 to 5606. [2022-11-26 01:04:55,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5606 states, 3546 states have (on average 1.349971799210378) internal successors, (4787), 3590 states have internal predecessors, (4787), 1760 states have call successors, (1760), 298 states have call predecessors, (1760), 297 states have return successors, (1834), 1749 states have call predecessors, (1834), 1756 states have call successors, (1834) [2022-11-26 01:04:55,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5606 states to 5606 states and 8381 transitions. [2022-11-26 01:04:55,445 INFO L78 Accepts]: Start accepts. Automaton has 5606 states and 8381 transitions. Word has length 411 [2022-11-26 01:04:55,447 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 01:04:55,448 INFO L495 AbstractCegarLoop]: Abstraction has 5606 states and 8381 transitions. [2022-11-26 01:04:55,448 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 3 states have call successors, (44), 2 states have call predecessors, (44), 1 states have return successors, (42), 3 states have call predecessors, (42), 3 states have call successors, (42) [2022-11-26 01:04:55,448 INFO L276 IsEmpty]: Start isEmpty. Operand 5606 states and 8381 transitions. [2022-11-26 01:04:55,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 419 [2022-11-26 01:04:55,460 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 01:04:55,460 INFO L195 NwaCegarLoop]: trace histogram [40, 39, 39, 39, 39, 39, 39, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:04:55,461 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-26 01:04:55,461 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-26 01:04:55,471 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 01:04:55,471 INFO L85 PathProgramCache]: Analyzing trace with hash 1934508353, now seen corresponding path program 1 times [2022-11-26 01:04:55,472 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 01:04:55,472 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1513937673] [2022-11-26 01:04:55,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 01:04:55,472 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 01:04:55,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 01:04:56,024 INFO L134 CoverageAnalysis]: Checked inductivity of 6006 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6006 trivial. 0 not checked. [2022-11-26 01:04:56,024 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 01:04:56,024 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1513937673] [2022-11-26 01:04:56,024 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1513937673] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 01:04:56,024 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 01:04:56,024 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-26 01:04:56,024 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2052474190] [2022-11-26 01:04:56,025 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 01:04:56,025 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-26 01:04:56,025 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 01:04:56,027 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-26 01:04:56,027 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 01:04:56,028 INFO L87 Difference]: Start difference. First operand 5606 states and 8381 transitions. Second operand has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 3 states have call successors, (44), 2 states have call predecessors, (44), 1 states have return successors, (42), 3 states have call predecessors, (42), 3 states have call successors, (42) [2022-11-26 01:04:58,012 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.37s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 01:05:02,286 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 01:05:03,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 01:05:03,472 INFO L93 Difference]: Finished difference Result 16334 states and 24667 transitions. [2022-11-26 01:05:03,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-26 01:05:03,473 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 3 states have call successors, (44), 2 states have call predecessors, (44), 1 states have return successors, (42), 3 states have call predecessors, (42), 3 states have call successors, (42) Word has length 418 [2022-11-26 01:05:03,474 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 01:05:03,556 INFO L225 Difference]: With dead ends: 16334 [2022-11-26 01:05:03,557 INFO L226 Difference]: Without dead ends: 10807 [2022-11-26 01:05:03,593 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 01:05:03,594 INFO L413 NwaCegarLoop]: 2698 mSDtfsCounter, 2272 mSDsluCounter, 2186 mSDsCounter, 0 mSdLazyCounter, 635 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2272 SdHoareTripleChecker+Valid, 4884 SdHoareTripleChecker+Invalid, 643 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 635 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.9s IncrementalHoareTripleChecker+Time [2022-11-26 01:05:03,594 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2272 Valid, 4884 Invalid, 643 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 635 Invalid, 1 Unknown, 0 Unchecked, 6.9s Time] [2022-11-26 01:05:03,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10807 states. [2022-11-26 01:05:04,281 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10807 to 10776. [2022-11-26 01:05:04,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10776 states, 6820 states have (on average 1.349706744868035) internal successors, (9205), 6910 states have internal predecessors, (9205), 3372 states have call successors, (3372), 586 states have call predecessors, (3372), 581 states have return successors, (3768), 3339 states have call predecessors, (3768), 3368 states have call successors, (3768) [2022-11-26 01:05:04,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10776 states to 10776 states and 16345 transitions. [2022-11-26 01:05:04,385 INFO L78 Accepts]: Start accepts. Automaton has 10776 states and 16345 transitions. Word has length 418 [2022-11-26 01:05:04,386 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 01:05:04,387 INFO L495 AbstractCegarLoop]: Abstraction has 10776 states and 16345 transitions. [2022-11-26 01:05:04,388 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 3 states have call successors, (44), 2 states have call predecessors, (44), 1 states have return successors, (42), 3 states have call predecessors, (42), 3 states have call successors, (42) [2022-11-26 01:05:04,388 INFO L276 IsEmpty]: Start isEmpty. Operand 10776 states and 16345 transitions. [2022-11-26 01:05:04,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 432 [2022-11-26 01:05:04,406 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 01:05:04,406 INFO L195 NwaCegarLoop]: trace histogram [40, 39, 39, 39, 39, 39, 39, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:05:04,406 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-26 01:05:04,407 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-26 01:05:04,408 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 01:05:04,408 INFO L85 PathProgramCache]: Analyzing trace with hash -305714601, now seen corresponding path program 1 times [2022-11-26 01:05:04,408 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 01:05:04,409 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2028987601] [2022-11-26 01:05:04,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 01:05:04,409 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 01:05:04,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 01:05:05,549 INFO L134 CoverageAnalysis]: Checked inductivity of 6006 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6006 trivial. 0 not checked. [2022-11-26 01:05:05,549 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 01:05:05,549 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2028987601] [2022-11-26 01:05:05,550 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2028987601] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 01:05:05,550 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 01:05:05,550 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-26 01:05:05,550 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1767565036] [2022-11-26 01:05:05,550 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 01:05:05,552 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-26 01:05:05,553 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 01:05:05,553 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-26 01:05:05,553 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-11-26 01:05:05,554 INFO L87 Difference]: Start difference. First operand 10776 states and 16345 transitions. Second operand has 6 states, 5 states have (on average 14.0) internal successors, (70), 5 states have internal predecessors, (70), 3 states have call successors, (50), 2 states have call predecessors, (50), 1 states have return successors, (44), 3 states have call predecessors, (44), 3 states have call successors, (44) [2022-11-26 01:05:14,148 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.70s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 01:05:15,893 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.55s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 01:05:21,736 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.00s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 01:05:23,689 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 01:05:23,689 INFO L93 Difference]: Finished difference Result 31847 states and 48279 transitions. [2022-11-26 01:05:23,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-26 01:05:23,690 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 14.0) internal successors, (70), 5 states have internal predecessors, (70), 3 states have call successors, (50), 2 states have call predecessors, (50), 1 states have return successors, (44), 3 states have call predecessors, (44), 3 states have call successors, (44) Word has length 431 [2022-11-26 01:05:23,692 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 01:05:23,835 INFO L225 Difference]: With dead ends: 31847 [2022-11-26 01:05:23,835 INFO L226 Difference]: Without dead ends: 21150 [2022-11-26 01:05:23,888 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-11-26 01:05:23,892 INFO L413 NwaCegarLoop]: 3186 mSDtfsCounter, 10759 mSDsluCounter, 3740 mSDsCounter, 0 mSdLazyCounter, 2812 mSolverCounterSat, 4131 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10967 SdHoareTripleChecker+Valid, 6926 SdHoareTripleChecker+Invalid, 6943 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4131 IncrementalHoareTripleChecker+Valid, 2812 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.8s IncrementalHoareTripleChecker+Time [2022-11-26 01:05:23,893 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10967 Valid, 6926 Invalid, 6943 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4131 Valid, 2812 Invalid, 0 Unknown, 0 Unchecked, 16.8s Time] [2022-11-26 01:05:23,922 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21150 states. [2022-11-26 01:05:25,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21150 to 21080. [2022-11-26 01:05:25,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21080 states, 13374 states have (on average 1.3476147749364438) internal successors, (18023), 13572 states have internal predecessors, (18023), 6542 states have call successors, (6542), 1178 states have call predecessors, (6542), 1161 states have return successors, (7305), 6449 states have call predecessors, (7305), 6538 states have call successors, (7305) [2022-11-26 01:05:25,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21080 states to 21080 states and 31870 transitions. [2022-11-26 01:05:25,433 INFO L78 Accepts]: Start accepts. Automaton has 21080 states and 31870 transitions. Word has length 431 [2022-11-26 01:05:25,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 01:05:25,434 INFO L495 AbstractCegarLoop]: Abstraction has 21080 states and 31870 transitions. [2022-11-26 01:05:25,434 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 14.0) internal successors, (70), 5 states have internal predecessors, (70), 3 states have call successors, (50), 2 states have call predecessors, (50), 1 states have return successors, (44), 3 states have call predecessors, (44), 3 states have call successors, (44) [2022-11-26 01:05:25,435 INFO L276 IsEmpty]: Start isEmpty. Operand 21080 states and 31870 transitions. [2022-11-26 01:05:25,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 434 [2022-11-26 01:05:25,446 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 01:05:25,446 INFO L195 NwaCegarLoop]: trace histogram [40, 39, 39, 39, 39, 39, 39, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:05:25,446 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-26 01:05:25,446 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-26 01:05:25,447 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 01:05:25,447 INFO L85 PathProgramCache]: Analyzing trace with hash 1785362596, now seen corresponding path program 1 times [2022-11-26 01:05:25,447 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 01:05:25,447 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [165810536] [2022-11-26 01:05:25,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 01:05:25,448 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 01:05:25,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 01:05:25,845 INFO L134 CoverageAnalysis]: Checked inductivity of 6006 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6006 trivial. 0 not checked. [2022-11-26 01:05:25,845 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 01:05:25,845 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [165810536] [2022-11-26 01:05:25,845 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [165810536] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 01:05:25,846 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 01:05:25,846 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-26 01:05:25,846 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [245405977] [2022-11-26 01:05:25,846 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 01:05:25,847 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-26 01:05:25,847 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 01:05:25,848 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-26 01:05:25,848 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 01:05:25,848 INFO L87 Difference]: Start difference. First operand 21080 states and 31870 transitions. Second operand has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 3 states have call successors, (50), 2 states have call predecessors, (50), 1 states have return successors, (43), 3 states have call predecessors, (43), 3 states have call successors, (43) [2022-11-26 01:05:29,712 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 01:05:31,234 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.51s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 01:05:33,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 01:05:33,864 INFO L93 Difference]: Finished difference Result 48852 states and 73685 transitions. [2022-11-26 01:05:33,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-26 01:05:33,865 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 3 states have call successors, (50), 2 states have call predecessors, (50), 1 states have return successors, (43), 3 states have call predecessors, (43), 3 states have call successors, (43) Word has length 433 [2022-11-26 01:05:33,865 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 01:05:34,032 INFO L225 Difference]: With dead ends: 48852 [2022-11-26 01:05:34,033 INFO L226 Difference]: Without dead ends: 27851 [2022-11-26 01:05:34,118 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 01:05:34,119 INFO L413 NwaCegarLoop]: 3097 mSDtfsCounter, 2136 mSDsluCounter, 2128 mSDsCounter, 0 mSdLazyCounter, 762 mSolverCounterSat, 29 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2136 SdHoareTripleChecker+Valid, 5225 SdHoareTripleChecker+Invalid, 792 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 762 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.7s IncrementalHoareTripleChecker+Time [2022-11-26 01:05:34,119 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2136 Valid, 5225 Invalid, 792 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 762 Invalid, 1 Unknown, 0 Unchecked, 6.7s Time] [2022-11-26 01:05:34,150 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27851 states. [2022-11-26 01:05:35,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27851 to 27818. [2022-11-26 01:05:36,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27818 states, 17598 states have (on average 1.3386180247755426) internal successors, (23557), 17883 states have internal predecessors, (23557), 8677 states have call successors, (8677), 1566 states have call predecessors, (8677), 1540 states have return successors, (9294), 8521 states have call predecessors, (9294), 8673 states have call successors, (9294) [2022-11-26 01:05:36,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27818 states to 27818 states and 41528 transitions. [2022-11-26 01:05:36,166 INFO L78 Accepts]: Start accepts. Automaton has 27818 states and 41528 transitions. Word has length 433 [2022-11-26 01:05:36,167 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 01:05:36,167 INFO L495 AbstractCegarLoop]: Abstraction has 27818 states and 41528 transitions. [2022-11-26 01:05:36,168 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 3 states have call successors, (50), 2 states have call predecessors, (50), 1 states have return successors, (43), 3 states have call predecessors, (43), 3 states have call successors, (43) [2022-11-26 01:05:36,168 INFO L276 IsEmpty]: Start isEmpty. Operand 27818 states and 41528 transitions. [2022-11-26 01:05:36,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 454 [2022-11-26 01:05:36,180 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 01:05:36,180 INFO L195 NwaCegarLoop]: trace histogram [43, 39, 39, 39, 39, 39, 39, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:05:36,181 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-26 01:05:36,181 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-26 01:05:36,181 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 01:05:36,182 INFO L85 PathProgramCache]: Analyzing trace with hash 153776902, now seen corresponding path program 1 times [2022-11-26 01:05:36,182 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 01:05:36,182 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1389011101] [2022-11-26 01:05:36,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 01:05:36,182 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 01:05:36,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 01:05:37,373 INFO L134 CoverageAnalysis]: Checked inductivity of 6279 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6279 trivial. 0 not checked. [2022-11-26 01:05:37,374 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 01:05:37,374 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1389011101] [2022-11-26 01:05:37,374 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1389011101] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 01:05:37,375 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 01:05:37,375 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-26 01:05:37,375 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1767929197] [2022-11-26 01:05:37,375 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 01:05:37,376 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-26 01:05:37,376 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 01:05:37,378 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-26 01:05:37,378 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-26 01:05:37,378 INFO L87 Difference]: Start difference. First operand 27818 states and 41528 transitions. Second operand has 5 states, 5 states have (on average 14.0) internal successors, (70), 4 states have internal predecessors, (70), 2 states have call successors, (50), 3 states have call predecessors, (50), 1 states have return successors, (48), 2 states have call predecessors, (48), 2 states have call successors, (48) [2022-11-26 01:05:39,757 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.23s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 01:05:44,572 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 01:05:44,572 INFO L93 Difference]: Finished difference Result 27824 states and 41533 transitions. [2022-11-26 01:05:44,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-26 01:05:44,573 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.0) internal successors, (70), 4 states have internal predecessors, (70), 2 states have call successors, (50), 3 states have call predecessors, (50), 1 states have return successors, (48), 2 states have call predecessors, (48), 2 states have call successors, (48) Word has length 453 [2022-11-26 01:05:44,574 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 01:05:44,722 INFO L225 Difference]: With dead ends: 27824 [2022-11-26 01:05:44,722 INFO L226 Difference]: Without dead ends: 27822 [2022-11-26 01:05:44,737 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-26 01:05:44,738 INFO L413 NwaCegarLoop]: 2181 mSDtfsCounter, 2385 mSDsluCounter, 4349 mSDsCounter, 0 mSdLazyCounter, 943 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2396 SdHoareTripleChecker+Valid, 6530 SdHoareTripleChecker+Invalid, 944 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 943 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.1s IncrementalHoareTripleChecker+Time [2022-11-26 01:05:44,738 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2396 Valid, 6530 Invalid, 944 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 943 Invalid, 0 Unknown, 0 Unchecked, 6.1s Time] [2022-11-26 01:05:44,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27822 states. [2022-11-26 01:05:46,757 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27822 to 27822. [2022-11-26 01:05:46,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27822 states, 17601 states have (on average 1.338560309073348) internal successors, (23560), 17886 states have internal predecessors, (23560), 8677 states have call successors, (8677), 1567 states have call predecessors, (8677), 1541 states have return successors, (9294), 8521 states have call predecessors, (9294), 8673 states have call successors, (9294) [2022-11-26 01:05:46,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27822 states to 27822 states and 41531 transitions. [2022-11-26 01:05:46,919 INFO L78 Accepts]: Start accepts. Automaton has 27822 states and 41531 transitions. Word has length 453 [2022-11-26 01:05:46,920 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 01:05:46,920 INFO L495 AbstractCegarLoop]: Abstraction has 27822 states and 41531 transitions. [2022-11-26 01:05:46,921 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.0) internal successors, (70), 4 states have internal predecessors, (70), 2 states have call successors, (50), 3 states have call predecessors, (50), 1 states have return successors, (48), 2 states have call predecessors, (48), 2 states have call successors, (48) [2022-11-26 01:05:46,921 INFO L276 IsEmpty]: Start isEmpty. Operand 27822 states and 41531 transitions. [2022-11-26 01:05:46,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 463 [2022-11-26 01:05:46,928 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 01:05:46,928 INFO L195 NwaCegarLoop]: trace histogram [43, 39, 39, 39, 39, 39, 39, 5, 5, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 01:05:46,929 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-26 01:05:46,929 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-26 01:05:46,929 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 01:05:46,929 INFO L85 PathProgramCache]: Analyzing trace with hash -1839620755, now seen corresponding path program 1 times [2022-11-26 01:05:46,930 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 01:05:46,930 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1326266688] [2022-11-26 01:05:46,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 01:05:46,930 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 01:05:47,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 01:05:48,028 INFO L134 CoverageAnalysis]: Checked inductivity of 6289 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 6287 trivial. 0 not checked. [2022-11-26 01:05:48,029 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 01:05:48,029 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1326266688] [2022-11-26 01:05:48,029 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1326266688] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 01:05:48,029 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 01:05:48,029 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-26 01:05:48,029 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [812222090] [2022-11-26 01:05:48,029 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 01:05:48,030 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-26 01:05:48,030 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 01:05:48,030 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-26 01:05:48,031 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-26 01:05:48,031 INFO L87 Difference]: Start difference. First operand 27822 states and 41531 transitions. Second operand has 5 states, 5 states have (on average 15.0) internal successors, (75), 4 states have internal predecessors, (75), 2 states have call successors, (53), 3 states have call predecessors, (53), 1 states have return successors, (51), 2 states have call predecessors, (51), 2 states have call successors, (51) [2022-11-26 01:05:51,297 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 01:05:55,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 01:05:55,082 INFO L93 Difference]: Finished difference Result 31051 states and 45754 transitions. [2022-11-26 01:05:55,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-26 01:05:55,083 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 4 states have internal predecessors, (75), 2 states have call successors, (53), 3 states have call predecessors, (53), 1 states have return successors, (51), 2 states have call predecessors, (51), 2 states have call successors, (51) Word has length 462 [2022-11-26 01:05:55,084 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 01:05:55,251 INFO L225 Difference]: With dead ends: 31051 [2022-11-26 01:05:55,251 INFO L226 Difference]: Without dead ends: 31049 [2022-11-26 01:05:55,265 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-26 01:05:55,266 INFO L413 NwaCegarLoop]: 2334 mSDtfsCounter, 2000 mSDsluCounter, 5539 mSDsCounter, 0 mSdLazyCounter, 1043 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2012 SdHoareTripleChecker+Valid, 7873 SdHoareTripleChecker+Invalid, 1045 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1043 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2022-11-26 01:05:55,267 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2012 Valid, 7873 Invalid, 1045 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1043 Invalid, 1 Unknown, 0 Unchecked, 5.5s Time] [2022-11-26 01:05:55,301 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31049 states. [2022-11-26 01:05:57,172 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31049 to 31045. [2022-11-26 01:05:57,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31045 states, 19432 states have (on average 1.3264203375874846) internal successors, (25775), 19752 states have internal predecessors, (25775), 9674 states have call successors, (9674), 1957 states have call predecessors, (9674), 1936 states have return successors, (10301), 9515 states have call predecessors, (10301), 9670 states have call successors, (10301) [2022-11-26 01:05:57,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31045 states to 31045 states and 45750 transitions. [2022-11-26 01:05:57,515 INFO L78 Accepts]: Start accepts. Automaton has 31045 states and 45750 transitions. Word has length 462 [2022-11-26 01:05:57,516 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 01:05:57,516 INFO L495 AbstractCegarLoop]: Abstraction has 31045 states and 45750 transitions. [2022-11-26 01:05:57,517 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 4 states have internal predecessors, (75), 2 states have call successors, (53), 3 states have call predecessors, (53), 1 states have return successors, (51), 2 states have call predecessors, (51), 2 states have call successors, (51) [2022-11-26 01:05:57,517 INFO L276 IsEmpty]: Start isEmpty. Operand 31045 states and 45750 transitions. [2022-11-26 01:05:57,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 468 [2022-11-26 01:05:57,529 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 01:05:57,529 INFO L195 NwaCegarLoop]: trace histogram [43, 39, 39, 39, 39, 39, 39, 5, 5, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:05:57,529 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-26 01:05:57,530 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-26 01:05:57,530 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 01:05:57,531 INFO L85 PathProgramCache]: Analyzing trace with hash -1634886978, now seen corresponding path program 1 times [2022-11-26 01:05:57,531 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 01:05:57,531 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [28087812] [2022-11-26 01:05:57,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 01:05:57,532 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 01:05:57,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 01:05:58,458 INFO L134 CoverageAnalysis]: Checked inductivity of 6295 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 6291 trivial. 0 not checked. [2022-11-26 01:05:58,458 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 01:05:58,458 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [28087812] [2022-11-26 01:05:58,459 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [28087812] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 01:05:58,459 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 01:05:58,459 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-26 01:05:58,459 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2080650748] [2022-11-26 01:05:58,459 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 01:05:58,460 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-26 01:05:58,460 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 01:05:58,461 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-26 01:05:58,461 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-26 01:05:58,462 INFO L87 Difference]: Start difference. First operand 31045 states and 45750 transitions. Second operand has 5 states, 5 states have (on average 15.0) internal successors, (75), 4 states have internal predecessors, (75), 2 states have call successors, (54), 3 states have call predecessors, (54), 1 states have return successors, (52), 2 states have call predecessors, (52), 2 states have call successors, (52) [2022-11-26 01:06:02,354 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 01:06:04,356 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 01:06:06,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 01:06:06,957 INFO L93 Difference]: Finished difference Result 31051 states and 45755 transitions. [2022-11-26 01:06:06,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-26 01:06:06,958 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 4 states have internal predecessors, (75), 2 states have call successors, (54), 3 states have call predecessors, (54), 1 states have return successors, (52), 2 states have call predecessors, (52), 2 states have call successors, (52) Word has length 467 [2022-11-26 01:06:06,959 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 01:06:07,099 INFO L225 Difference]: With dead ends: 31051 [2022-11-26 01:06:07,099 INFO L226 Difference]: Without dead ends: 31049 [2022-11-26 01:06:07,115 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-26 01:06:07,116 INFO L413 NwaCegarLoop]: 2184 mSDtfsCounter, 2379 mSDsluCounter, 4349 mSDsCounter, 0 mSdLazyCounter, 941 mSolverCounterSat, 1 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2388 SdHoareTripleChecker+Valid, 6533 SdHoareTripleChecker+Invalid, 944 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 941 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.0s IncrementalHoareTripleChecker+Time [2022-11-26 01:06:07,117 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2388 Valid, 6533 Invalid, 944 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 941 Invalid, 2 Unknown, 0 Unchecked, 7.0s Time] [2022-11-26 01:06:07,145 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31049 states. [2022-11-26 01:06:09,264 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31049 to 31049. [2022-11-26 01:06:09,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31049 states, 19435 states have (on average 1.326369951119115) internal successors, (25778), 19755 states have internal predecessors, (25778), 9674 states have call successors, (9674), 1958 states have call predecessors, (9674), 1937 states have return successors, (10301), 9515 states have call predecessors, (10301), 9670 states have call successors, (10301) [2022-11-26 01:06:09,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31049 states to 31049 states and 45753 transitions. [2022-11-26 01:06:09,386 INFO L78 Accepts]: Start accepts. Automaton has 31049 states and 45753 transitions. Word has length 467 [2022-11-26 01:06:09,387 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 01:06:09,387 INFO L495 AbstractCegarLoop]: Abstraction has 31049 states and 45753 transitions. [2022-11-26 01:06:09,387 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 4 states have internal predecessors, (75), 2 states have call successors, (54), 3 states have call predecessors, (54), 1 states have return successors, (52), 2 states have call predecessors, (52), 2 states have call successors, (52) [2022-11-26 01:06:09,388 INFO L276 IsEmpty]: Start isEmpty. Operand 31049 states and 45753 transitions. [2022-11-26 01:06:09,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 469 [2022-11-26 01:06:09,400 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 01:06:09,400 INFO L195 NwaCegarLoop]: trace histogram [43, 39, 39, 39, 39, 39, 39, 4, 4, 4, 3, 3, 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] [2022-11-26 01:06:09,401 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-26 01:06:09,401 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-26 01:06:09,401 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 01:06:09,402 INFO L85 PathProgramCache]: Analyzing trace with hash 228813157, now seen corresponding path program 1 times [2022-11-26 01:06:09,402 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 01:06:09,402 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1470389046] [2022-11-26 01:06:09,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 01:06:09,402 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 01:06:09,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 01:06:10,302 INFO L134 CoverageAnalysis]: Checked inductivity of 6297 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 6291 trivial. 0 not checked. [2022-11-26 01:06:10,302 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 01:06:10,302 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1470389046] [2022-11-26 01:06:10,303 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1470389046] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 01:06:10,303 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 01:06:10,303 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-26 01:06:10,303 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [27252311] [2022-11-26 01:06:10,303 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 01:06:10,304 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-26 01:06:10,304 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 01:06:10,305 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-26 01:06:10,305 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-26 01:06:10,306 INFO L87 Difference]: Start difference. First operand 31049 states and 45753 transitions. Second operand has 5 states, 5 states have (on average 14.6) internal successors, (73), 4 states have internal predecessors, (73), 2 states have call successors, (53), 3 states have call predecessors, (53), 1 states have return successors, (51), 2 states have call predecessors, (51), 2 states have call successors, (51) [2022-11-26 01:06:13,040 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.50s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 01:06:15,895 WARN L539 Checker$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 01:06:20,955 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 01:06:20,955 INFO L93 Difference]: Finished difference Result 31055 states and 45758 transitions. [2022-11-26 01:06:20,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-26 01:06:20,958 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.6) internal successors, (73), 4 states have internal predecessors, (73), 2 states have call successors, (53), 3 states have call predecessors, (53), 1 states have return successors, (51), 2 states have call predecessors, (51), 2 states have call successors, (51) Word has length 468 [2022-11-26 01:06:20,959 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 01:06:21,104 INFO L225 Difference]: With dead ends: 31055 [2022-11-26 01:06:21,104 INFO L226 Difference]: Without dead ends: 31053 [2022-11-26 01:06:21,119 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-26 01:06:21,122 INFO L413 NwaCegarLoop]: 2184 mSDtfsCounter, 2380 mSDsluCounter, 4349 mSDsCounter, 0 mSdLazyCounter, 942 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2388 SdHoareTripleChecker+Valid, 6533 SdHoareTripleChecker+Invalid, 944 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 942 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.7s IncrementalHoareTripleChecker+Time [2022-11-26 01:06:21,123 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2388 Valid, 6533 Invalid, 944 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 942 Invalid, 1 Unknown, 0 Unchecked, 8.7s Time] [2022-11-26 01:06:21,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31053 states. [2022-11-26 01:06:23,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31053 to 31053. [2022-11-26 01:06:23,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31053 states, 19438 states have (on average 1.3263195802037246) internal successors, (25781), 19758 states have internal predecessors, (25781), 9674 states have call successors, (9674), 1959 states have call predecessors, (9674), 1938 states have return successors, (10301), 9515 states have call predecessors, (10301), 9670 states have call successors, (10301) [2022-11-26 01:06:23,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31053 states to 31053 states and 45756 transitions. [2022-11-26 01:06:23,334 INFO L78 Accepts]: Start accepts. Automaton has 31053 states and 45756 transitions. Word has length 468 [2022-11-26 01:06:23,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 01:06:23,334 INFO L495 AbstractCegarLoop]: Abstraction has 31053 states and 45756 transitions. [2022-11-26 01:06:23,335 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.6) internal successors, (73), 4 states have internal predecessors, (73), 2 states have call successors, (53), 3 states have call predecessors, (53), 1 states have return successors, (51), 2 states have call predecessors, (51), 2 states have call successors, (51) [2022-11-26 01:06:23,335 INFO L276 IsEmpty]: Start isEmpty. Operand 31053 states and 45756 transitions. [2022-11-26 01:06:23,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 477 [2022-11-26 01:06:23,346 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 01:06:23,346 INFO L195 NwaCegarLoop]: trace histogram [43, 39, 39, 39, 39, 39, 39, 5, 5, 5, 4, 4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:06:23,347 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-26 01:06:23,347 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-26 01:06:23,347 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 01:06:23,348 INFO L85 PathProgramCache]: Analyzing trace with hash 694025998, now seen corresponding path program 1 times [2022-11-26 01:06:23,348 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 01:06:23,348 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [821275682] [2022-11-26 01:06:23,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 01:06:23,349 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 01:06:23,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 01:06:24,126 INFO L134 CoverageAnalysis]: Checked inductivity of 6318 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 6310 trivial. 0 not checked. [2022-11-26 01:06:24,126 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 01:06:24,126 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [821275682] [2022-11-26 01:06:24,127 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [821275682] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 01:06:24,127 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 01:06:24,127 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-26 01:06:24,127 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1933437469] [2022-11-26 01:06:24,128 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 01:06:24,128 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-26 01:06:24,128 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 01:06:24,129 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-26 01:06:24,129 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-26 01:06:24,130 INFO L87 Difference]: Start difference. First operand 31053 states and 45756 transitions. Second operand has 5 states, 5 states have (on average 15.0) internal successors, (75), 4 states have internal predecessors, (75), 2 states have call successors, (56), 3 states have call predecessors, (56), 1 states have return successors, (54), 2 states have call predecessors, (54), 2 states have call successors, (54) [2022-11-26 01:06:26,459 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 01:06:27,852 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.39s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 01:06:32,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 01:06:32,258 INFO L93 Difference]: Finished difference Result 31059 states and 45761 transitions. [2022-11-26 01:06:32,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-26 01:06:32,258 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 4 states have internal predecessors, (75), 2 states have call successors, (56), 3 states have call predecessors, (56), 1 states have return successors, (54), 2 states have call predecessors, (54), 2 states have call successors, (54) Word has length 476 [2022-11-26 01:06:32,259 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 01:06:32,416 INFO L225 Difference]: With dead ends: 31059 [2022-11-26 01:06:32,417 INFO L226 Difference]: Without dead ends: 31057 [2022-11-26 01:06:32,439 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-26 01:06:32,440 INFO L413 NwaCegarLoop]: 2184 mSDtfsCounter, 2379 mSDsluCounter, 4349 mSDsCounter, 0 mSdLazyCounter, 943 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2386 SdHoareTripleChecker+Valid, 6533 SdHoareTripleChecker+Invalid, 944 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 943 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.5s IncrementalHoareTripleChecker+Time [2022-11-26 01:06:32,440 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2386 Valid, 6533 Invalid, 944 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 943 Invalid, 0 Unknown, 0 Unchecked, 6.5s Time] [2022-11-26 01:06:32,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31057 states. [2022-11-26 01:06:34,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31057 to 31057. [2022-11-26 01:06:34,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31057 states, 19441 states have (on average 1.3262692248341135) internal successors, (25784), 19761 states have internal predecessors, (25784), 9674 states have call successors, (9674), 1960 states have call predecessors, (9674), 1939 states have return successors, (10301), 9515 states have call predecessors, (10301), 9670 states have call successors, (10301) [2022-11-26 01:06:34,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31057 states to 31057 states and 45759 transitions. [2022-11-26 01:06:34,532 INFO L78 Accepts]: Start accepts. Automaton has 31057 states and 45759 transitions. Word has length 476 [2022-11-26 01:06:34,533 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 01:06:34,533 INFO L495 AbstractCegarLoop]: Abstraction has 31057 states and 45759 transitions. [2022-11-26 01:06:34,533 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 4 states have internal predecessors, (75), 2 states have call successors, (56), 3 states have call predecessors, (56), 1 states have return successors, (54), 2 states have call predecessors, (54), 2 states have call successors, (54) [2022-11-26 01:06:34,533 INFO L276 IsEmpty]: Start isEmpty. Operand 31057 states and 45759 transitions. [2022-11-26 01:06:34,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 483 [2022-11-26 01:06:34,546 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 01:06:34,546 INFO L195 NwaCegarLoop]: trace histogram [43, 39, 39, 39, 39, 39, 39, 6, 5, 5, 5, 5, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:06:34,546 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-26 01:06:34,547 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-26 01:06:34,547 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 01:06:34,547 INFO L85 PathProgramCache]: Analyzing trace with hash 282810925, now seen corresponding path program 1 times [2022-11-26 01:06:34,548 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 01:06:34,548 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [23570198] [2022-11-26 01:06:34,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 01:06:34,548 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 01:06:34,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 01:06:35,357 INFO L134 CoverageAnalysis]: Checked inductivity of 6337 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 6327 trivial. 0 not checked. [2022-11-26 01:06:35,359 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 01:06:35,359 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [23570198] [2022-11-26 01:06:35,359 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [23570198] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 01:06:35,359 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 01:06:35,359 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-26 01:06:35,359 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [978332581] [2022-11-26 01:06:35,359 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 01:06:35,360 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-26 01:06:35,360 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 01:06:35,361 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-26 01:06:35,361 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-26 01:06:35,362 INFO L87 Difference]: Start difference. First operand 31057 states and 45759 transitions. Second operand has 5 states, 5 states have (on average 15.0) internal successors, (75), 4 states have internal predecessors, (75), 2 states have call successors, (57), 3 states have call predecessors, (57), 1 states have return successors, (55), 2 states have call predecessors, (55), 2 states have call successors, (55) [2022-11-26 01:06:38,048 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.44s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 01:06:39,107 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 01:06:46,130 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 01:06:46,130 INFO L93 Difference]: Finished difference Result 31063 states and 45764 transitions. [2022-11-26 01:06:46,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-26 01:06:46,130 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 4 states have internal predecessors, (75), 2 states have call successors, (57), 3 states have call predecessors, (57), 1 states have return successors, (55), 2 states have call predecessors, (55), 2 states have call successors, (55) Word has length 482 [2022-11-26 01:06:46,131 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 01:06:46,287 INFO L225 Difference]: With dead ends: 31063 [2022-11-26 01:06:46,287 INFO L226 Difference]: Without dead ends: 31061 [2022-11-26 01:06:46,309 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-26 01:06:46,310 INFO L413 NwaCegarLoop]: 2184 mSDtfsCounter, 2379 mSDsluCounter, 4349 mSDsCounter, 0 mSdLazyCounter, 943 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2385 SdHoareTripleChecker+Valid, 6533 SdHoareTripleChecker+Invalid, 944 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 943 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.8s IncrementalHoareTripleChecker+Time [2022-11-26 01:06:46,310 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2385 Valid, 6533 Invalid, 944 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 943 Invalid, 0 Unknown, 0 Unchecked, 8.8s Time] [2022-11-26 01:06:46,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31061 states. [2022-11-26 01:06:48,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31061 to 31061. [2022-11-26 01:06:48,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31061 states, 19444 states have (on average 1.3262188850030858) internal successors, (25787), 19764 states have internal predecessors, (25787), 9674 states have call successors, (9674), 1961 states have call predecessors, (9674), 1940 states have return successors, (10301), 9515 states have call predecessors, (10301), 9670 states have call successors, (10301) [2022-11-26 01:06:48,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31061 states to 31061 states and 45762 transitions. [2022-11-26 01:06:48,536 INFO L78 Accepts]: Start accepts. Automaton has 31061 states and 45762 transitions. Word has length 482 [2022-11-26 01:06:48,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 01:06:48,537 INFO L495 AbstractCegarLoop]: Abstraction has 31061 states and 45762 transitions. [2022-11-26 01:06:48,538 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 4 states have internal predecessors, (75), 2 states have call successors, (57), 3 states have call predecessors, (57), 1 states have return successors, (55), 2 states have call predecessors, (55), 2 states have call successors, (55) [2022-11-26 01:06:48,538 INFO L276 IsEmpty]: Start isEmpty. Operand 31061 states and 45762 transitions. [2022-11-26 01:06:48,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 487 [2022-11-26 01:06:48,551 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 01:06:48,551 INFO L195 NwaCegarLoop]: trace histogram [43, 39, 39, 39, 39, 39, 39, 7, 6, 6, 5, 5, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 01:06:48,551 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-26 01:06:48,552 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-26 01:06:48,552 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 01:06:48,552 INFO L85 PathProgramCache]: Analyzing trace with hash -1612483538, now seen corresponding path program 1 times [2022-11-26 01:06:48,552 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 01:06:48,553 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2104797935] [2022-11-26 01:06:48,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 01:06:48,553 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 01:06:48,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 01:06:49,456 INFO L134 CoverageAnalysis]: Checked inductivity of 6358 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 6346 trivial. 0 not checked. [2022-11-26 01:06:49,456 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 01:06:49,457 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2104797935] [2022-11-26 01:06:49,457 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2104797935] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 01:06:49,457 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 01:06:49,457 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-26 01:06:49,457 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1821129094] [2022-11-26 01:06:49,458 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 01:06:49,458 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-26 01:06:49,458 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 01:06:49,459 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-26 01:06:49,459 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-26 01:06:49,459 INFO L87 Difference]: Start difference. First operand 31061 states and 45762 transitions. Second operand has 5 states, 5 states have (on average 15.0) internal successors, (75), 4 states have internal predecessors, (75), 2 states have call successors, (58), 3 states have call predecessors, (58), 1 states have return successors, (56), 2 states have call predecessors, (56), 2 states have call successors, (56) [2022-11-26 01:06:53,468 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.88s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 01:06:57,798 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 01:06:57,798 INFO L93 Difference]: Finished difference Result 31067 states and 45767 transitions. [2022-11-26 01:06:57,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-26 01:06:57,799 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 4 states have internal predecessors, (75), 2 states have call successors, (58), 3 states have call predecessors, (58), 1 states have return successors, (56), 2 states have call predecessors, (56), 2 states have call successors, (56) Word has length 486 [2022-11-26 01:06:57,800 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 01:06:57,932 INFO L225 Difference]: With dead ends: 31067 [2022-11-26 01:06:57,933 INFO L226 Difference]: Without dead ends: 31065 [2022-11-26 01:06:57,950 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-26 01:06:57,951 INFO L413 NwaCegarLoop]: 2184 mSDtfsCounter, 2379 mSDsluCounter, 4349 mSDsCounter, 0 mSdLazyCounter, 943 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2384 SdHoareTripleChecker+Valid, 6533 SdHoareTripleChecker+Invalid, 944 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 943 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.6s IncrementalHoareTripleChecker+Time [2022-11-26 01:06:57,951 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2384 Valid, 6533 Invalid, 944 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 943 Invalid, 0 Unknown, 0 Unchecked, 6.6s Time] [2022-11-26 01:06:57,982 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31065 states. [2022-11-26 01:06:59,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31065 to 31065. [2022-11-26 01:06:59,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31065 states, 19447 states have (on average 1.3261685607034503) internal successors, (25790), 19767 states have internal predecessors, (25790), 9674 states have call successors, (9674), 1962 states have call predecessors, (9674), 1941 states have return successors, (10301), 9515 states have call predecessors, (10301), 9670 states have call successors, (10301) [2022-11-26 01:07:00,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31065 states to 31065 states and 45765 transitions. [2022-11-26 01:07:00,028 INFO L78 Accepts]: Start accepts. Automaton has 31065 states and 45765 transitions. Word has length 486 [2022-11-26 01:07:00,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 01:07:00,029 INFO L495 AbstractCegarLoop]: Abstraction has 31065 states and 45765 transitions. [2022-11-26 01:07:00,029 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 4 states have internal predecessors, (75), 2 states have call successors, (58), 3 states have call predecessors, (58), 1 states have return successors, (56), 2 states have call predecessors, (56), 2 states have call successors, (56) [2022-11-26 01:07:00,029 INFO L276 IsEmpty]: Start isEmpty. Operand 31065 states and 45765 transitions. [2022-11-26 01:07:00,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 489 [2022-11-26 01:07:00,040 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 01:07:00,041 INFO L195 NwaCegarLoop]: trace histogram [43, 39, 39, 39, 39, 39, 39, 8, 7, 7, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:07:00,041 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-26 01:07:00,041 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-26 01:07:00,042 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 01:07:00,042 INFO L85 PathProgramCache]: Analyzing trace with hash 1929828901, now seen corresponding path program 1 times [2022-11-26 01:07:00,042 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 01:07:00,042 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [400452481] [2022-11-26 01:07:00,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 01:07:00,043 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 01:07:00,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 01:07:00,684 INFO L134 CoverageAnalysis]: Checked inductivity of 6377 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 6363 trivial. 0 not checked. [2022-11-26 01:07:00,684 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 01:07:00,684 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [400452481] [2022-11-26 01:07:00,684 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [400452481] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 01:07:00,684 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 01:07:00,685 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-26 01:07:00,685 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [161045113] [2022-11-26 01:07:00,685 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 01:07:00,686 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-26 01:07:00,686 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 01:07:00,687 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-26 01:07:00,687 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-26 01:07:00,687 INFO L87 Difference]: Start difference. First operand 31065 states and 45765 transitions. Second operand has 5 states, 5 states have (on average 14.6) internal successors, (73), 4 states have internal predecessors, (73), 2 states have call successors, (57), 3 states have call predecessors, (57), 1 states have return successors, (55), 2 states have call predecessors, (55), 2 states have call successors, (55) [2022-11-26 01:07:03,892 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 01:07:08,466 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 01:07:08,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 01:07:08,942 INFO L93 Difference]: Finished difference Result 31075 states and 45772 transitions. [2022-11-26 01:07:08,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-26 01:07:08,943 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.6) internal successors, (73), 4 states have internal predecessors, (73), 2 states have call successors, (57), 3 states have call predecessors, (57), 1 states have return successors, (55), 2 states have call predecessors, (55), 2 states have call successors, (55) Word has length 488 [2022-11-26 01:07:08,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 01:07:09,048 INFO L225 Difference]: With dead ends: 31075 [2022-11-26 01:07:09,048 INFO L226 Difference]: Without dead ends: 31073 [2022-11-26 01:07:09,060 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-26 01:07:09,061 INFO L413 NwaCegarLoop]: 2334 mSDtfsCounter, 2001 mSDsluCounter, 5539 mSDsCounter, 0 mSdLazyCounter, 1043 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2007 SdHoareTripleChecker+Valid, 7873 SdHoareTripleChecker+Invalid, 1045 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1043 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.1s IncrementalHoareTripleChecker+Time [2022-11-26 01:07:09,061 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2007 Valid, 7873 Invalid, 1045 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1043 Invalid, 1 Unknown, 0 Unchecked, 6.1s Time] [2022-11-26 01:07:09,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31073 states. [2022-11-26 01:07:11,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31073 to 31069. [2022-11-26 01:07:11,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31069 states, 19450 states have (on average 1.3261182519280206) internal successors, (25793), 19770 states have internal predecessors, (25793), 9674 states have call successors, (9674), 1963 states have call predecessors, (9674), 1942 states have return successors, (10301), 9515 states have call predecessors, (10301), 9670 states have call successors, (10301) [2022-11-26 01:07:11,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31069 states to 31069 states and 45768 transitions. [2022-11-26 01:07:11,278 INFO L78 Accepts]: Start accepts. Automaton has 31069 states and 45768 transitions. Word has length 488 [2022-11-26 01:07:11,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 01:07:11,279 INFO L495 AbstractCegarLoop]: Abstraction has 31069 states and 45768 transitions. [2022-11-26 01:07:11,279 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.6) internal successors, (73), 4 states have internal predecessors, (73), 2 states have call successors, (57), 3 states have call predecessors, (57), 1 states have return successors, (55), 2 states have call predecessors, (55), 2 states have call successors, (55) [2022-11-26 01:07:11,279 INFO L276 IsEmpty]: Start isEmpty. Operand 31069 states and 45768 transitions. [2022-11-26 01:07:11,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 494 [2022-11-26 01:07:11,291 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 01:07:11,291 INFO L195 NwaCegarLoop]: trace histogram [43, 39, 39, 39, 39, 39, 39, 9, 8, 8, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:07:11,291 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-26 01:07:11,292 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-26 01:07:11,292 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 01:07:11,292 INFO L85 PathProgramCache]: Analyzing trace with hash -1083170938, now seen corresponding path program 1 times [2022-11-26 01:07:11,292 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 01:07:11,293 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1491438416] [2022-11-26 01:07:11,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 01:07:11,293 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 01:07:11,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 01:07:11,942 INFO L134 CoverageAnalysis]: Checked inductivity of 6407 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 6391 trivial. 0 not checked. [2022-11-26 01:07:11,942 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 01:07:11,947 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1491438416] [2022-11-26 01:07:11,947 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1491438416] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 01:07:11,948 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 01:07:11,948 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-26 01:07:11,948 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1834262907] [2022-11-26 01:07:11,948 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 01:07:11,950 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-26 01:07:11,950 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 01:07:11,951 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-26 01:07:11,951 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-26 01:07:11,951 INFO L87 Difference]: Start difference. First operand 31069 states and 45768 transitions. Second operand has 5 states, 5 states have (on average 14.6) internal successors, (73), 4 states have internal predecessors, (73), 2 states have call successors, (58), 3 states have call predecessors, (58), 1 states have return successors, (56), 2 states have call predecessors, (56), 2 states have call successors, (56) [2022-11-26 01:07:14,738 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.60s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 01:07:17,573 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.88s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 01:07:21,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 01:07:21,441 INFO L93 Difference]: Finished difference Result 31075 states and 45773 transitions. [2022-11-26 01:07:21,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-26 01:07:21,442 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.6) internal successors, (73), 4 states have internal predecessors, (73), 2 states have call successors, (58), 3 states have call predecessors, (58), 1 states have return successors, (56), 2 states have call predecessors, (56), 2 states have call successors, (56) Word has length 493 [2022-11-26 01:07:21,443 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 01:07:21,536 INFO L225 Difference]: With dead ends: 31075 [2022-11-26 01:07:21,536 INFO L226 Difference]: Without dead ends: 31073 [2022-11-26 01:07:21,548 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-26 01:07:21,548 INFO L413 NwaCegarLoop]: 2184 mSDtfsCounter, 2380 mSDsluCounter, 4349 mSDsCounter, 0 mSdLazyCounter, 943 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2383 SdHoareTripleChecker+Valid, 6533 SdHoareTripleChecker+Invalid, 944 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 943 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.3s IncrementalHoareTripleChecker+Time [2022-11-26 01:07:21,548 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2383 Valid, 6533 Invalid, 944 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 943 Invalid, 0 Unknown, 0 Unchecked, 7.3s Time] [2022-11-26 01:07:21,574 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31073 states. [2022-11-26 01:07:23,622 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31073 to 31073. [2022-11-26 01:07:23,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31073 states, 19453 states have (on average 1.326067958669614) internal successors, (25796), 19773 states have internal predecessors, (25796), 9674 states have call successors, (9674), 1964 states have call predecessors, (9674), 1943 states have return successors, (10301), 9515 states have call predecessors, (10301), 9670 states have call successors, (10301) [2022-11-26 01:07:23,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31073 states to 31073 states and 45771 transitions. [2022-11-26 01:07:23,738 INFO L78 Accepts]: Start accepts. Automaton has 31073 states and 45771 transitions. Word has length 493 [2022-11-26 01:07:23,739 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 01:07:23,739 INFO L495 AbstractCegarLoop]: Abstraction has 31073 states and 45771 transitions. [2022-11-26 01:07:23,739 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.6) internal successors, (73), 4 states have internal predecessors, (73), 2 states have call successors, (58), 3 states have call predecessors, (58), 1 states have return successors, (56), 2 states have call predecessors, (56), 2 states have call successors, (56) [2022-11-26 01:07:23,739 INFO L276 IsEmpty]: Start isEmpty. Operand 31073 states and 45771 transitions. [2022-11-26 01:07:23,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 502 [2022-11-26 01:07:23,748 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 01:07:23,748 INFO L195 NwaCegarLoop]: trace histogram [43, 39, 39, 39, 39, 39, 39, 10, 9, 9, 5, 5, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 01:07:23,748 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-26 01:07:23,749 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-26 01:07:23,749 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 01:07:23,749 INFO L85 PathProgramCache]: Analyzing trace with hash 309752253, now seen corresponding path program 1 times [2022-11-26 01:07:23,749 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 01:07:23,749 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1578894248] [2022-11-26 01:07:23,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 01:07:23,750 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 01:07:23,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 01:07:24,386 INFO L134 CoverageAnalysis]: Checked inductivity of 6448 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 6430 trivial. 0 not checked. [2022-11-26 01:07:24,386 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 01:07:24,387 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1578894248] [2022-11-26 01:07:24,387 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1578894248] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 01:07:24,387 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 01:07:24,387 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-26 01:07:24,387 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [435565027] [2022-11-26 01:07:24,387 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 01:07:24,388 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-26 01:07:24,388 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 01:07:24,389 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-26 01:07:24,389 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-26 01:07:24,389 INFO L87 Difference]: Start difference. First operand 31073 states and 45771 transitions. Second operand has 5 states, 5 states have (on average 15.0) internal successors, (75), 4 states have internal predecessors, (75), 2 states have call successors, (61), 3 states have call predecessors, (61), 1 states have return successors, (59), 2 states have call predecessors, (59), 2 states have call successors, (59) [2022-11-26 01:07:27,539 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 01:07:31,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 01:07:31,860 INFO L93 Difference]: Finished difference Result 31083 states and 45778 transitions. [2022-11-26 01:07:31,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-26 01:07:31,861 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 4 states have internal predecessors, (75), 2 states have call successors, (61), 3 states have call predecessors, (61), 1 states have return successors, (59), 2 states have call predecessors, (59), 2 states have call successors, (59) Word has length 501 [2022-11-26 01:07:31,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 01:07:31,953 INFO L225 Difference]: With dead ends: 31083 [2022-11-26 01:07:31,953 INFO L226 Difference]: Without dead ends: 31081 [2022-11-26 01:07:31,966 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-26 01:07:31,966 INFO L413 NwaCegarLoop]: 2334 mSDtfsCounter, 2000 mSDsluCounter, 5539 mSDsCounter, 0 mSdLazyCounter, 1043 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2004 SdHoareTripleChecker+Valid, 7873 SdHoareTripleChecker+Invalid, 1045 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1043 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2022-11-26 01:07:31,967 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2004 Valid, 7873 Invalid, 1045 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1043 Invalid, 1 Unknown, 0 Unchecked, 5.1s Time] [2022-11-26 01:07:31,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31081 states. [2022-11-26 01:07:34,119 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31081 to 31077. [2022-11-26 01:07:34,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31077 states, 19456 states have (on average 1.3260176809210527) internal successors, (25799), 19776 states have internal predecessors, (25799), 9674 states have call successors, (9674), 1965 states have call predecessors, (9674), 1944 states have return successors, (10301), 9515 states have call predecessors, (10301), 9670 states have call successors, (10301) [2022-11-26 01:07:34,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31077 states to 31077 states and 45774 transitions. [2022-11-26 01:07:34,254 INFO L78 Accepts]: Start accepts. Automaton has 31077 states and 45774 transitions. Word has length 501 [2022-11-26 01:07:34,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 01:07:34,255 INFO L495 AbstractCegarLoop]: Abstraction has 31077 states and 45774 transitions. [2022-11-26 01:07:34,255 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 4 states have internal predecessors, (75), 2 states have call successors, (61), 3 states have call predecessors, (61), 1 states have return successors, (59), 2 states have call predecessors, (59), 2 states have call successors, (59) [2022-11-26 01:07:34,256 INFO L276 IsEmpty]: Start isEmpty. Operand 31077 states and 45774 transitions. [2022-11-26 01:07:34,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 500 [2022-11-26 01:07:34,271 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 01:07:34,272 INFO L195 NwaCegarLoop]: trace histogram [44, 39, 39, 39, 39, 39, 39, 5, 5, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 01:07:34,272 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-26 01:07:34,272 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-26 01:07:34,273 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 01:07:34,273 INFO L85 PathProgramCache]: Analyzing trace with hash 847548277, now seen corresponding path program 1 times [2022-11-26 01:07:34,273 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 01:07:34,273 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [942048388] [2022-11-26 01:07:34,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 01:07:34,274 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 01:07:34,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 01:07:34,713 INFO L134 CoverageAnalysis]: Checked inductivity of 6380 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 6368 trivial. 0 not checked. [2022-11-26 01:07:34,713 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 01:07:34,714 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [942048388] [2022-11-26 01:07:34,716 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [942048388] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 01:07:34,716 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 01:07:34,717 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-26 01:07:34,717 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [923292841] [2022-11-26 01:07:34,717 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 01:07:34,718 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-26 01:07:34,718 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 01:07:34,719 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-26 01:07:34,719 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 01:07:34,719 INFO L87 Difference]: Start difference. First operand 31077 states and 45774 transitions. Second operand has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 3 states have call successors, (60), 2 states have call predecessors, (60), 1 states have return successors, (53), 3 states have call predecessors, (53), 3 states have call successors, (53) [2022-11-26 01:07:39,272 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 01:07:45,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 01:07:45,678 INFO L93 Difference]: Finished difference Result 70950 states and 104568 transitions. [2022-11-26 01:07:45,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-26 01:07:45,679 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 3 states have call successors, (60), 2 states have call predecessors, (60), 1 states have return successors, (53), 3 states have call predecessors, (53), 3 states have call successors, (53) Word has length 499 [2022-11-26 01:07:45,679 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 01:07:45,819 INFO L225 Difference]: With dead ends: 70950 [2022-11-26 01:07:45,819 INFO L226 Difference]: Without dead ends: 40376 [2022-11-26 01:07:45,909 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 01:07:45,910 INFO L413 NwaCegarLoop]: 4146 mSDtfsCounter, 2286 mSDsluCounter, 2158 mSDsCounter, 0 mSdLazyCounter, 932 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2286 SdHoareTripleChecker+Valid, 6304 SdHoareTripleChecker+Invalid, 943 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 932 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.4s IncrementalHoareTripleChecker+Time [2022-11-26 01:07:45,910 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2286 Valid, 6304 Invalid, 943 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 932 Invalid, 1 Unknown, 0 Unchecked, 7.4s Time] [2022-11-26 01:07:45,944 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40376 states. [2022-11-26 01:07:48,908 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40376 to 40297. [2022-11-26 01:07:48,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40297 states, 25273 states have (on average 1.3267518695841412) internal successors, (33531), 25688 states have internal predecessors, (33531), 12519 states have call successors, (12519), 2532 states have call predecessors, (12519), 2502 states have return successors, (13344), 12308 states have call predecessors, (13344), 12515 states have call successors, (13344) [2022-11-26 01:07:49,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40297 states to 40297 states and 59394 transitions. [2022-11-26 01:07:49,069 INFO L78 Accepts]: Start accepts. Automaton has 40297 states and 59394 transitions. Word has length 499 [2022-11-26 01:07:49,069 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 01:07:49,070 INFO L495 AbstractCegarLoop]: Abstraction has 40297 states and 59394 transitions. [2022-11-26 01:07:49,070 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 3 states have call successors, (60), 2 states have call predecessors, (60), 1 states have return successors, (53), 3 states have call predecessors, (53), 3 states have call successors, (53) [2022-11-26 01:07:49,070 INFO L276 IsEmpty]: Start isEmpty. Operand 40297 states and 59394 transitions. [2022-11-26 01:07:49,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 504 [2022-11-26 01:07:49,076 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 01:07:49,077 INFO L195 NwaCegarLoop]: trace histogram [43, 39, 39, 39, 39, 39, 39, 11, 10, 10, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:07:49,077 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-11-26 01:07:49,077 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-26 01:07:49,078 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 01:07:49,078 INFO L85 PathProgramCache]: Analyzing trace with hash -303776090, now seen corresponding path program 1 times [2022-11-26 01:07:49,078 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 01:07:49,078 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [714576223] [2022-11-26 01:07:49,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 01:07:49,079 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 01:07:49,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 01:07:49,754 INFO L134 CoverageAnalysis]: Checked inductivity of 6479 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 6459 trivial. 0 not checked. [2022-11-26 01:07:49,755 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 01:07:49,755 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [714576223] [2022-11-26 01:07:49,755 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [714576223] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 01:07:49,755 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 01:07:49,756 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-26 01:07:49,756 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1852543250] [2022-11-26 01:07:49,756 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 01:07:49,757 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-26 01:07:49,757 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 01:07:49,757 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-26 01:07:49,758 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-26 01:07:49,758 INFO L87 Difference]: Start difference. First operand 40297 states and 59394 transitions. Second operand has 5 states, 5 states have (on average 14.6) internal successors, (73), 4 states have internal predecessors, (73), 2 states have call successors, (60), 3 states have call predecessors, (60), 1 states have return successors, (58), 2 states have call predecessors, (58), 2 states have call successors, (58) [2022-11-26 01:07:53,504 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.82s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 01:07:54,556 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 01:07:56,564 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []