./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-challenges/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-amd-pcnet32.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6d61deb-1de3-4563-91ea-1219f0f7c25e/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6d61deb-1de3-4563-91ea-1219f0f7c25e/bin/utaipan-gh47qXpMRh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6d61deb-1de3-4563-91ea-1219f0f7c25e/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6d61deb-1de3-4563-91ea-1219f0f7c25e/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-challenges/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-amd-pcnet32.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6d61deb-1de3-4563-91ea-1219f0f7c25e/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6d61deb-1de3-4563-91ea-1219f0f7c25e/bin/utaipan-gh47qXpMRh --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 5afcd851c0eed3ee93d773a0172936a989a39cd6889ca2587c3b833a21bc8a3a --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-14 05:53:26,777 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 05:53:26,778 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 05:53:26,798 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 05:53:26,798 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 05:53:26,799 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 05:53:26,800 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 05:53:26,802 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 05:53:26,804 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 05:53:26,805 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 05:53:26,806 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 05:53:26,807 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 05:53:26,807 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 05:53:26,808 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 05:53:26,810 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 05:53:26,811 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 05:53:26,812 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 05:53:26,813 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 05:53:26,814 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 05:53:26,816 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 05:53:26,818 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 05:53:26,819 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 05:53:26,820 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 05:53:26,821 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 05:53:26,825 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 05:53:26,825 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 05:53:26,825 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 05:53:26,826 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 05:53:26,827 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 05:53:26,828 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 05:53:26,828 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 05:53:26,829 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 05:53:26,830 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 05:53:26,831 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 05:53:26,832 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 05:53:26,832 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 05:53:26,833 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 05:53:26,833 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 05:53:26,833 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 05:53:26,834 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 05:53:26,835 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 05:53:26,836 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6d61deb-1de3-4563-91ea-1219f0f7c25e/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-12-14 05:53:26,857 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 05:53:26,857 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 05:53:26,858 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 05:53:26,858 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 05:53:26,858 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 05:53:26,859 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 05:53:26,859 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 05:53:26,859 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 05:53:26,859 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 05:53:26,859 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 05:53:26,859 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 05:53:26,860 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 05:53:26,860 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 05:53:26,860 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 05:53:26,860 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 05:53:26,860 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 05:53:26,860 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 05:53:26,861 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 05:53:26,861 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 05:53:26,861 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 05:53:26,861 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 05:53:26,862 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 05:53:26,862 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 05:53:26,862 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 05:53:26,862 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 05:53:26,862 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 05:53:26,862 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 05:53:26,863 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 05:53:26,863 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 05:53:26,863 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 05:53:26,863 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 05:53:26,863 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 05:53:26,864 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 05:53:26,864 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 05:53:26,864 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 05:53:26,864 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 05:53:26,864 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 05:53:26,864 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 05:53:26,864 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_d6d61deb-1de3-4563-91ea-1219f0f7c25e/bin/utaipan-gh47qXpMRh/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6d61deb-1de3-4563-91ea-1219f0f7c25e/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5afcd851c0eed3ee93d773a0172936a989a39cd6889ca2587c3b833a21bc8a3a [2022-12-14 05:53:27,041 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 05:53:27,058 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 05:53:27,060 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 05:53:27,061 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 05:53:27,061 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 05:53:27,062 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6d61deb-1de3-4563-91ea-1219f0f7c25e/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/ldv-challenges/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-amd-pcnet32.cil.i [2022-12-14 05:53:29,749 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 05:53:30,107 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 05:53:30,108 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6d61deb-1de3-4563-91ea-1219f0f7c25e/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-amd-pcnet32.cil.i [2022-12-14 05:53:30,135 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6d61deb-1de3-4563-91ea-1219f0f7c25e/bin/utaipan-gh47qXpMRh/data/7033a9d8e/a63db1eebf604a26b0661f94a534e7a6/FLAG0be9f6809 [2022-12-14 05:53:30,145 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6d61deb-1de3-4563-91ea-1219f0f7c25e/bin/utaipan-gh47qXpMRh/data/7033a9d8e/a63db1eebf604a26b0661f94a534e7a6 [2022-12-14 05:53:30,147 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 05:53:30,148 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 05:53:30,149 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 05:53:30,149 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 05:53:30,152 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 05:53:30,152 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 05:53:30" (1/1) ... [2022-12-14 05:53:30,153 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@48b81e9b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:53:30, skipping insertion in model container [2022-12-14 05:53:30,153 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 05:53:30" (1/1) ... [2022-12-14 05:53:30,159 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 05:53:30,249 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 05:53:30,835 WARN L623 FunctionHandler]: Unknown extern function __local_bh_disable_ip [2022-12-14 05:53:30,842 WARN L623 FunctionHandler]: Unknown extern function __local_bh_enable_ip [2022-12-14 05:53:30,862 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock [2022-12-14 05:53:30,872 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_unlock [2022-12-14 05:53:30,882 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_unlock_irqrestore [2022-12-14 05:53:30,969 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 05:53:31,015 WARN L623 FunctionHandler]: Unknown extern function __phys_addr [2022-12-14 05:53:31,018 WARN L623 FunctionHandler]: Unknown extern function __phys_addr [2022-12-14 05:53:31,018 WARN L623 FunctionHandler]: Unknown extern function debug_dma_map_page [2022-12-14 05:53:31,024 WARN L623 FunctionHandler]: Unknown extern function debug_dma_unmap_page [2022-12-14 05:53:31,030 WARN L623 FunctionHandler]: Unknown extern function debug_dma_sync_single_for_cpu [2022-12-14 05:53:31,035 WARN L623 FunctionHandler]: Unknown extern function debug_dma_sync_single_for_device [2022-12-14 05:53:31,054 WARN L623 FunctionHandler]: Unknown extern function debug_dma_alloc_coherent [2022-12-14 05:53:31,059 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-12-14 05:53:31,060 WARN L623 FunctionHandler]: Unknown extern function debug_dma_free_coherent [2022-12-14 05:53:31,079 WARN L623 FunctionHandler]: Unknown extern function __netdev_alloc_skb [2022-12-14 05:53:31,109 WARN L623 FunctionHandler]: Unknown extern function __might_sleep [2022-12-14 05:53:31,111 WARN L623 FunctionHandler]: Unknown extern function msleep [2022-12-14 05:53:31,158 WARN L623 FunctionHandler]: Unknown extern function netpoll_trap [2022-12-14 05:53:31,159 WARN L623 FunctionHandler]: Unknown extern function __netif_schedule [2022-12-14 05:53:31,167 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-12-14 05:53:31,168 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 05:53:31,191 WARN L623 FunctionHandler]: Unknown extern function __dev_kfree_skb_any [2022-12-14 05:53:31,228 WARN L623 FunctionHandler]: Unknown extern function __bad_percpu_size [2022-12-14 05:53:31,228 WARN L623 FunctionHandler]: Unknown extern function __bad_percpu_size [2022-12-14 05:53:31,229 WARN L623 FunctionHandler]: Unknown extern function __bad_percpu_size [2022-12-14 05:53:31,229 WARN L623 FunctionHandler]: Unknown extern function __bad_percpu_size [2022-12-14 05:53:31,230 WARN L623 FunctionHandler]: Unknown extern function __bad_size_call_parameter [2022-12-14 05:53:31,298 WARN L623 FunctionHandler]: Unknown extern function dma_supported [2022-12-14 05:53:31,342 WARN L623 FunctionHandler]: Unknown extern function request_threaded_irq [2022-12-14 05:53:31,549 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 05:53:31,551 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 05:53:31,551 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 05:53:31,552 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 05:53:31,557 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 05:53:31,559 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 05:53:31,561 WARN L623 FunctionHandler]: Unknown extern function consume_skb [2022-12-14 05:53:31,562 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 05:53:31,562 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 05:53:31,563 WARN L623 FunctionHandler]: Unknown extern function consume_skb [2022-12-14 05:53:31,564 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 05:53:31,564 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 05:53:31,573 WARN L623 FunctionHandler]: Unknown extern function disable_irq [2022-12-14 05:53:31,574 WARN L623 FunctionHandler]: Unknown extern function enable_irq [2022-12-14 05:53:31,578 WARN L623 FunctionHandler]: Unknown extern function mii_ethtool_gset [2022-12-14 05:53:31,582 WARN L623 FunctionHandler]: Unknown extern function mii_ethtool_sset [2022-12-14 05:53:31,586 WARN L623 FunctionHandler]: Unknown extern function strlcpy [2022-12-14 05:53:31,588 WARN L623 FunctionHandler]: Unknown extern function strlcpy [2022-12-14 05:53:31,589 WARN L623 FunctionHandler]: Unknown extern function strlcpy [2022-12-14 05:53:31,594 WARN L623 FunctionHandler]: Unknown extern function mii_link_ok [2022-12-14 05:53:31,607 WARN L623 FunctionHandler]: Unknown extern function mii_nway_restart [2022-12-14 05:53:31,617 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-12-14 05:53:31,626 WARN L623 FunctionHandler]: Unknown extern function netdev_printk [2022-12-14 05:53:31,627 WARN L623 FunctionHandler]: Unknown extern function netdev_printk [2022-12-14 05:53:31,627 WARN L623 FunctionHandler]: Unknown extern function netdev_printk [2022-12-14 05:53:31,630 WARN L623 FunctionHandler]: Unknown extern function netdev_printk [2022-12-14 05:53:31,630 WARN L623 FunctionHandler]: Unknown extern function skb_put [2022-12-14 05:53:31,635 WARN L623 FunctionHandler]: Unknown extern function msleep [2022-12-14 05:53:31,635 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 05:53:31,636 WARN L623 FunctionHandler]: Unknown extern function netdev_printk [2022-12-14 05:53:31,636 WARN L623 FunctionHandler]: Unknown extern function netdev_printk [2022-12-14 05:53:31,637 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 05:53:31,638 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 05:53:31,639 WARN L623 FunctionHandler]: Unknown extern function netdev_printk [2022-12-14 05:53:31,652 WARN L623 FunctionHandler]: Unknown extern function msleep [2022-12-14 05:53:31,653 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 05:53:31,653 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 05:53:31,653 WARN L623 FunctionHandler]: Unknown extern function netdev_printk [2022-12-14 05:53:31,660 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 05:53:31,660 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 05:53:31,661 WARN L623 FunctionHandler]: Unknown extern function skb_put [2022-12-14 05:53:31,662 WARN L623 FunctionHandler]: Unknown extern function skb_put [2022-12-14 05:53:31,663 WARN L623 FunctionHandler]: Unknown extern function eth_type_trans [2022-12-14 05:53:31,663 WARN L623 FunctionHandler]: Unknown extern function netif_receive_skb [2022-12-14 05:53:31,673 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 05:53:31,674 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 05:53:31,676 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 05:53:31,682 WARN L623 FunctionHandler]: Unknown extern function __napi_complete [2022-12-14 05:53:31,692 WARN L623 FunctionHandler]: Unknown extern function __request_region [2022-12-14 05:53:31,693 WARN L623 FunctionHandler]: Unknown extern function __release_region [2022-12-14 05:53:31,693 WARN L623 FunctionHandler]: Unknown extern function __release_region [2022-12-14 05:53:31,694 WARN L623 FunctionHandler]: Unknown extern function pci_enable_device [2022-12-14 05:53:31,694 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 05:53:31,694 WARN L623 FunctionHandler]: Unknown extern function pci_set_master [2022-12-14 05:53:31,695 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 05:53:31,695 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 05:53:31,695 WARN L623 FunctionHandler]: Unknown extern function __request_region [2022-12-14 05:53:31,696 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 05:53:31,696 WARN L623 FunctionHandler]: Unknown extern function pci_disable_device [2022-12-14 05:53:31,698 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 05:53:31,699 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 05:53:31,700 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 05:53:31,702 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 05:53:31,704 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 05:53:31,705 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 05:53:31,707 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 05:53:31,707 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 05:53:31,708 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 05:53:31,709 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 05:53:31,709 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 05:53:31,709 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 05:53:31,710 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 05:53:31,710 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 05:53:31,710 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 05:53:31,711 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 05:53:31,711 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 05:53:31,711 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 05:53:31,711 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 05:53:31,712 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 05:53:31,712 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 05:53:31,713 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 05:53:31,713 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 05:53:31,714 WARN L623 FunctionHandler]: Unknown extern function __raw_spin_lock_init [2022-12-14 05:53:31,716 WARN L623 FunctionHandler]: Unknown extern function netif_napi_add [2022-12-14 05:53:31,718 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 05:53:31,719 WARN L623 FunctionHandler]: Unknown extern function probe_irq_on [2022-12-14 05:53:31,719 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 05:53:31,719 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 05:53:31,720 WARN L623 FunctionHandler]: Unknown extern function probe_irq_off [2022-12-14 05:53:31,720 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 05:53:31,720 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 05:53:31,722 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 05:53:31,723 WARN L623 FunctionHandler]: Unknown extern function init_timer_key [2022-12-14 05:53:31,724 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 05:53:31,724 WARN L623 FunctionHandler]: Unknown extern function __release_region [2022-12-14 05:53:31,727 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 05:53:31,728 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 05:53:31,729 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 05:53:31,730 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 05:53:31,730 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 05:53:31,730 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 05:53:31,733 WARN L623 FunctionHandler]: Unknown extern function netdev_printk [2022-12-14 05:53:31,736 WARN L623 FunctionHandler]: Unknown extern function netdev_printk [2022-12-14 05:53:31,741 WARN L623 FunctionHandler]: Unknown extern function mii_ethtool_gset [2022-12-14 05:53:31,741 WARN L623 FunctionHandler]: Unknown extern function mii_ethtool_sset [2022-12-14 05:53:31,742 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-12-14 05:53:31,744 WARN L623 FunctionHandler]: Unknown extern function netdev_printk [2022-12-14 05:53:31,747 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 05:53:31,751 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 05:53:31,753 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 05:53:31,753 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 05:53:31,754 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 05:53:31,755 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 05:53:31,756 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 05:53:31,757 WARN L623 FunctionHandler]: Unknown extern function netdev_printk [2022-12-14 05:53:31,774 WARN L623 FunctionHandler]: Unknown extern function netdev_printk [2022-12-14 05:53:31,775 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 05:53:31,776 WARN L623 FunctionHandler]: Unknown extern function __napi_schedule [2022-12-14 05:53:31,776 WARN L623 FunctionHandler]: Unknown extern function netdev_printk [2022-12-14 05:53:31,778 WARN L623 FunctionHandler]: Unknown extern function netdev_printk [2022-12-14 05:53:31,781 WARN L623 FunctionHandler]: Unknown extern function crc32_le [2022-12-14 05:53:31,783 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-12-14 05:53:31,787 WARN L623 FunctionHandler]: Unknown extern function generic_mii_ioctl [2022-12-14 05:53:31,792 WARN L623 FunctionHandler]: Unknown extern function mii_link_ok [2022-12-14 05:53:31,792 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-12-14 05:53:31,794 WARN L623 FunctionHandler]: Unknown extern function mii_link_ok [2022-12-14 05:53:31,794 WARN L623 FunctionHandler]: Unknown extern function netif_carrier_off [2022-12-14 05:53:31,794 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-12-14 05:53:31,795 WARN L623 FunctionHandler]: Unknown extern function netif_carrier_on [2022-12-14 05:53:31,796 WARN L623 FunctionHandler]: Unknown extern function mii_ethtool_gset [2022-12-14 05:53:31,796 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-12-14 05:53:31,797 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-12-14 05:53:31,798 WARN L623 FunctionHandler]: Unknown extern function round_jiffies [2022-12-14 05:53:31,802 WARN L623 FunctionHandler]: Unknown extern function netif_device_detach [2022-12-14 05:53:31,803 WARN L623 FunctionHandler]: Unknown extern function pci_save_state [2022-12-14 05:53:31,803 WARN L623 FunctionHandler]: Unknown extern function pci_choose_state [2022-12-14 05:53:31,803 WARN L623 FunctionHandler]: Unknown extern function pci_set_power_state [2022-12-14 05:53:31,807 WARN L623 FunctionHandler]: Unknown extern function pci_set_power_state [2022-12-14 05:53:31,807 WARN L623 FunctionHandler]: Unknown extern function pci_restore_state [2022-12-14 05:53:31,807 WARN L623 FunctionHandler]: Unknown extern function netif_device_attach [2022-12-14 05:53:31,812 WARN L623 FunctionHandler]: Unknown extern function __release_region [2022-12-14 05:53:31,812 WARN L623 FunctionHandler]: Unknown extern function pci_disable_device [2022-12-14 05:53:31,817 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 05:53:31,818 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 05:53:31,822 WARN L623 FunctionHandler]: Unknown extern function __release_region [2022-12-14 05:53:32,088 WARN L623 FunctionHandler]: Unknown extern function eth_change_mtu [2022-12-14 05:53:32,088 WARN L623 FunctionHandler]: Unknown extern function eth_mac_addr [2022-12-14 05:53:32,089 WARN L623 FunctionHandler]: Unknown extern function eth_validate_addr [2022-12-14 05:53:32,091 WARN L623 FunctionHandler]: Unknown extern function ldv_initialize [2022-12-14 05:53:32,092 WARN L623 FunctionHandler]: Unknown extern function ldv_switch_to_interrupt_context [2022-12-14 05:53:32,092 WARN L623 FunctionHandler]: Unknown extern function ldv_switch_to_process_context [2022-12-14 05:53:32,098 WARN L623 FunctionHandler]: Unknown extern function ldv_pre_probe [2022-12-14 05:53:32,100 WARN L623 FunctionHandler]: Unknown extern function ldv_pre_register_netdev [2022-12-14 05:53:32,105 WARN L623 FunctionHandler]: Unknown extern function ldv_switch_to_interrupt_context [2022-12-14 05:53:32,105 WARN L623 FunctionHandler]: Unknown extern function ldv_switch_to_process_context [2022-12-14 05:53:32,106 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-12-14 05:53:32,106 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-12-14 05:53:32,106 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-12-14 05:53:32,107 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-12-14 05:53:32,107 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-12-14 05:53:32,107 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-12-14 05:53:32,107 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-12-14 05:53:32,107 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-12-14 05:53:32,107 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-12-14 05:53:32,108 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-12-14 05:53:32,108 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-12-14 05:53:32,108 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-12-14 05:53:32,108 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-12-14 05:53:32,108 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-12-14 05:53:32,109 WARN L623 FunctionHandler]: Unknown extern function alloc_etherdev_mqs [2022-12-14 05:53:32,109 WARN L623 FunctionHandler]: Unknown extern function register_netdev [2022-12-14 05:53:32,109 WARN L623 FunctionHandler]: Unknown extern function free_netdev [2022-12-14 05:53:32,110 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-12-14 05:53:32,110 WARN L623 FunctionHandler]: Unknown extern function mod_timer [2022-12-14 05:53:32,110 WARN L623 FunctionHandler]: Unknown extern function free_irq [2022-12-14 05:53:32,110 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-12-14 05:53:32,111 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-12-14 05:53:32,111 WARN L623 FunctionHandler]: Unknown extern function del_timer_sync [2022-12-14 05:53:32,111 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-12-14 05:53:32,111 WARN L623 FunctionHandler]: Unknown extern function free_irq [2022-12-14 05:53:32,112 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-12-14 05:53:32,112 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-12-14 05:53:32,112 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-12-14 05:53:32,112 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-12-14 05:53:32,112 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-12-14 05:53:32,113 WARN L623 FunctionHandler]: Unknown extern function mod_timer [2022-12-14 05:53:32,113 WARN L623 FunctionHandler]: Unknown extern function unregister_netdev [2022-12-14 05:53:32,113 WARN L623 FunctionHandler]: Unknown extern function free_netdev [2022-12-14 05:53:32,113 WARN L623 FunctionHandler]: Unknown extern function __pci_register_driver [2022-12-14 05:53:32,114 WARN L623 FunctionHandler]: Unknown extern function unregister_netdev [2022-12-14 05:53:32,114 WARN L623 FunctionHandler]: Unknown extern function free_netdev [2022-12-14 05:53:32,114 WARN L623 FunctionHandler]: Unknown extern function pci_unregister_driver [2022-12-14 05:53:32,157 WARN L623 FunctionHandler]: Unknown extern function ldv_check_alloc_flags [2022-12-14 05:53:32,157 WARN L623 FunctionHandler]: Unknown extern function ldv_after_alloc [2022-12-14 05:53:32,165 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 05:53:32,620 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_d6d61deb-1de3-4563-91ea-1219f0f7c25e/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-amd-pcnet32.cil.i[410165,410178] [2022-12-14 05:53:32,623 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_d6d61deb-1de3-4563-91ea-1219f0f7c25e/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-amd-pcnet32.cil.i[410334,410347] [2022-12-14 05:53:32,624 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_d6d61deb-1de3-4563-91ea-1219f0f7c25e/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-amd-pcnet32.cil.i[410501,410514] [2022-12-14 05:53:32,624 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_d6d61deb-1de3-4563-91ea-1219f0f7c25e/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-amd-pcnet32.cil.i[410669,410682] [2022-12-14 05:53:32,625 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 05:53:32,625 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 05:53:32,626 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 05:53:32,626 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 05:53:32,639 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 05:53:32,659 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 05:53:32,736 WARN L623 FunctionHandler]: Unknown extern function __local_bh_disable_ip [2022-12-14 05:53:32,737 WARN L623 FunctionHandler]: Unknown extern function __local_bh_enable_ip [2022-12-14 05:53:32,737 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock [2022-12-14 05:53:32,738 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_unlock [2022-12-14 05:53:32,738 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_unlock_irqrestore [2022-12-14 05:53:32,740 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 05:53:32,744 WARN L623 FunctionHandler]: Unknown extern function __phys_addr [2022-12-14 05:53:32,745 WARN L623 FunctionHandler]: Unknown extern function __phys_addr [2022-12-14 05:53:32,745 WARN L623 FunctionHandler]: Unknown extern function debug_dma_map_page [2022-12-14 05:53:32,746 WARN L623 FunctionHandler]: Unknown extern function debug_dma_unmap_page [2022-12-14 05:53:32,747 WARN L623 FunctionHandler]: Unknown extern function debug_dma_sync_single_for_cpu [2022-12-14 05:53:32,748 WARN L623 FunctionHandler]: Unknown extern function debug_dma_sync_single_for_device [2022-12-14 05:53:32,750 WARN L623 FunctionHandler]: Unknown extern function debug_dma_alloc_coherent [2022-12-14 05:53:32,751 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-12-14 05:53:32,751 WARN L623 FunctionHandler]: Unknown extern function debug_dma_free_coherent [2022-12-14 05:53:32,752 WARN L623 FunctionHandler]: Unknown extern function __netdev_alloc_skb [2022-12-14 05:53:32,753 WARN L623 FunctionHandler]: Unknown extern function __might_sleep [2022-12-14 05:53:32,754 WARN L623 FunctionHandler]: Unknown extern function msleep [2022-12-14 05:53:32,755 WARN L623 FunctionHandler]: Unknown extern function netpoll_trap [2022-12-14 05:53:32,756 WARN L623 FunctionHandler]: Unknown extern function __netif_schedule [2022-12-14 05:53:32,756 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-12-14 05:53:32,757 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 05:53:32,758 WARN L623 FunctionHandler]: Unknown extern function __dev_kfree_skb_any [2022-12-14 05:53:32,759 WARN L623 FunctionHandler]: Unknown extern function __bad_percpu_size [2022-12-14 05:53:32,760 WARN L623 FunctionHandler]: Unknown extern function __bad_percpu_size [2022-12-14 05:53:32,760 WARN L623 FunctionHandler]: Unknown extern function __bad_percpu_size [2022-12-14 05:53:32,760 WARN L623 FunctionHandler]: Unknown extern function __bad_percpu_size [2022-12-14 05:53:32,761 WARN L623 FunctionHandler]: Unknown extern function __bad_size_call_parameter [2022-12-14 05:53:32,761 WARN L623 FunctionHandler]: Unknown extern function dma_supported [2022-12-14 05:53:32,764 WARN L623 FunctionHandler]: Unknown extern function request_threaded_irq [2022-12-14 05:53:32,772 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 05:53:32,773 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 05:53:32,773 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 05:53:32,774 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 05:53:32,775 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 05:53:32,777 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 05:53:32,778 WARN L623 FunctionHandler]: Unknown extern function consume_skb [2022-12-14 05:53:32,779 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 05:53:32,779 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 05:53:32,780 WARN L623 FunctionHandler]: Unknown extern function consume_skb [2022-12-14 05:53:32,780 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 05:53:32,780 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 05:53:32,782 WARN L623 FunctionHandler]: Unknown extern function disable_irq [2022-12-14 05:53:32,783 WARN L623 FunctionHandler]: Unknown extern function enable_irq [2022-12-14 05:53:32,783 WARN L623 FunctionHandler]: Unknown extern function mii_ethtool_gset [2022-12-14 05:53:32,784 WARN L623 FunctionHandler]: Unknown extern function mii_ethtool_sset [2022-12-14 05:53:32,784 WARN L623 FunctionHandler]: Unknown extern function strlcpy [2022-12-14 05:53:32,785 WARN L623 FunctionHandler]: Unknown extern function strlcpy [2022-12-14 05:53:32,785 WARN L623 FunctionHandler]: Unknown extern function strlcpy [2022-12-14 05:53:32,786 WARN L623 FunctionHandler]: Unknown extern function mii_link_ok [2022-12-14 05:53:32,788 WARN L623 FunctionHandler]: Unknown extern function mii_nway_restart [2022-12-14 05:53:32,790 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-12-14 05:53:32,791 WARN L623 FunctionHandler]: Unknown extern function netdev_printk [2022-12-14 05:53:32,792 WARN L623 FunctionHandler]: Unknown extern function netdev_printk [2022-12-14 05:53:32,792 WARN L623 FunctionHandler]: Unknown extern function netdev_printk [2022-12-14 05:53:32,795 WARN L623 FunctionHandler]: Unknown extern function netdev_printk [2022-12-14 05:53:32,795 WARN L623 FunctionHandler]: Unknown extern function skb_put [2022-12-14 05:53:32,798 WARN L623 FunctionHandler]: Unknown extern function msleep [2022-12-14 05:53:32,799 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 05:53:32,799 WARN L623 FunctionHandler]: Unknown extern function netdev_printk [2022-12-14 05:53:32,800 WARN L623 FunctionHandler]: Unknown extern function netdev_printk [2022-12-14 05:53:32,800 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 05:53:32,800 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 05:53:32,801 WARN L623 FunctionHandler]: Unknown extern function netdev_printk [2022-12-14 05:53:32,806 WARN L623 FunctionHandler]: Unknown extern function msleep [2022-12-14 05:53:32,806 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 05:53:32,806 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 05:53:32,807 WARN L623 FunctionHandler]: Unknown extern function netdev_printk [2022-12-14 05:53:32,809 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 05:53:32,809 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 05:53:32,810 WARN L623 FunctionHandler]: Unknown extern function skb_put [2022-12-14 05:53:32,811 WARN L623 FunctionHandler]: Unknown extern function skb_put [2022-12-14 05:53:32,811 WARN L623 FunctionHandler]: Unknown extern function eth_type_trans [2022-12-14 05:53:32,811 WARN L623 FunctionHandler]: Unknown extern function netif_receive_skb [2022-12-14 05:53:32,813 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 05:53:32,814 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 05:53:32,815 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 05:53:32,816 WARN L623 FunctionHandler]: Unknown extern function __napi_complete [2022-12-14 05:53:32,820 WARN L623 FunctionHandler]: Unknown extern function __request_region [2022-12-14 05:53:32,821 WARN L623 FunctionHandler]: Unknown extern function __release_region [2022-12-14 05:53:32,821 WARN L623 FunctionHandler]: Unknown extern function __release_region [2022-12-14 05:53:32,822 WARN L623 FunctionHandler]: Unknown extern function pci_enable_device [2022-12-14 05:53:32,822 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 05:53:32,822 WARN L623 FunctionHandler]: Unknown extern function pci_set_master [2022-12-14 05:53:32,822 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 05:53:32,823 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 05:53:32,823 WARN L623 FunctionHandler]: Unknown extern function __request_region [2022-12-14 05:53:32,823 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 05:53:32,823 WARN L623 FunctionHandler]: Unknown extern function pci_disable_device [2022-12-14 05:53:32,825 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 05:53:32,825 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 05:53:32,826 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 05:53:32,827 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 05:53:32,828 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 05:53:32,829 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 05:53:32,831 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 05:53:32,831 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 05:53:32,831 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 05:53:32,832 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 05:53:32,832 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 05:53:32,832 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 05:53:32,833 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 05:53:32,833 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 05:53:32,833 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 05:53:32,833 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 05:53:32,833 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 05:53:32,834 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 05:53:32,834 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 05:53:32,834 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 05:53:32,834 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 05:53:32,835 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 05:53:32,835 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 05:53:32,835 WARN L623 FunctionHandler]: Unknown extern function __raw_spin_lock_init [2022-12-14 05:53:32,836 WARN L623 FunctionHandler]: Unknown extern function netif_napi_add [2022-12-14 05:53:32,838 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 05:53:32,839 WARN L623 FunctionHandler]: Unknown extern function probe_irq_on [2022-12-14 05:53:32,839 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 05:53:32,839 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 05:53:32,839 WARN L623 FunctionHandler]: Unknown extern function probe_irq_off [2022-12-14 05:53:32,839 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 05:53:32,840 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 05:53:32,840 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 05:53:32,841 WARN L623 FunctionHandler]: Unknown extern function init_timer_key [2022-12-14 05:53:32,842 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 05:53:32,842 WARN L623 FunctionHandler]: Unknown extern function __release_region [2022-12-14 05:53:32,843 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 05:53:32,844 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 05:53:32,845 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 05:53:32,845 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 05:53:32,846 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 05:53:32,846 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 05:53:32,847 WARN L623 FunctionHandler]: Unknown extern function netdev_printk [2022-12-14 05:53:32,850 WARN L623 FunctionHandler]: Unknown extern function netdev_printk [2022-12-14 05:53:32,853 WARN L623 FunctionHandler]: Unknown extern function mii_ethtool_gset [2022-12-14 05:53:32,854 WARN L623 FunctionHandler]: Unknown extern function mii_ethtool_sset [2022-12-14 05:53:32,854 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-12-14 05:53:32,855 WARN L623 FunctionHandler]: Unknown extern function netdev_printk [2022-12-14 05:53:32,858 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 05:53:32,860 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 05:53:32,861 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 05:53:32,862 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 05:53:32,862 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 05:53:32,863 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 05:53:32,864 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 05:53:32,865 WARN L623 FunctionHandler]: Unknown extern function netdev_printk [2022-12-14 05:53:32,867 WARN L623 FunctionHandler]: Unknown extern function netdev_printk [2022-12-14 05:53:32,868 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 05:53:32,868 WARN L623 FunctionHandler]: Unknown extern function __napi_schedule [2022-12-14 05:53:32,869 WARN L623 FunctionHandler]: Unknown extern function netdev_printk [2022-12-14 05:53:32,870 WARN L623 FunctionHandler]: Unknown extern function netdev_printk [2022-12-14 05:53:32,871 WARN L623 FunctionHandler]: Unknown extern function crc32_le [2022-12-14 05:53:32,873 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-12-14 05:53:32,876 WARN L623 FunctionHandler]: Unknown extern function generic_mii_ioctl [2022-12-14 05:53:32,877 WARN L623 FunctionHandler]: Unknown extern function mii_link_ok [2022-12-14 05:53:32,877 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-12-14 05:53:32,878 WARN L623 FunctionHandler]: Unknown extern function mii_link_ok [2022-12-14 05:53:32,878 WARN L623 FunctionHandler]: Unknown extern function netif_carrier_off [2022-12-14 05:53:32,879 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-12-14 05:53:32,879 WARN L623 FunctionHandler]: Unknown extern function netif_carrier_on [2022-12-14 05:53:32,880 WARN L623 FunctionHandler]: Unknown extern function mii_ethtool_gset [2022-12-14 05:53:32,880 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-12-14 05:53:32,881 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-12-14 05:53:32,881 WARN L623 FunctionHandler]: Unknown extern function round_jiffies [2022-12-14 05:53:32,882 WARN L623 FunctionHandler]: Unknown extern function netif_device_detach [2022-12-14 05:53:32,882 WARN L623 FunctionHandler]: Unknown extern function pci_save_state [2022-12-14 05:53:32,882 WARN L623 FunctionHandler]: Unknown extern function pci_choose_state [2022-12-14 05:53:32,883 WARN L623 FunctionHandler]: Unknown extern function pci_set_power_state [2022-12-14 05:53:32,883 WARN L623 FunctionHandler]: Unknown extern function pci_set_power_state [2022-12-14 05:53:32,883 WARN L623 FunctionHandler]: Unknown extern function pci_restore_state [2022-12-14 05:53:32,883 WARN L623 FunctionHandler]: Unknown extern function netif_device_attach [2022-12-14 05:53:32,884 WARN L623 FunctionHandler]: Unknown extern function __release_region [2022-12-14 05:53:32,884 WARN L623 FunctionHandler]: Unknown extern function pci_disable_device [2022-12-14 05:53:32,884 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 05:53:32,885 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 05:53:32,886 WARN L623 FunctionHandler]: Unknown extern function __release_region [2022-12-14 05:53:32,890 WARN L623 FunctionHandler]: Unknown extern function eth_change_mtu [2022-12-14 05:53:32,891 WARN L623 FunctionHandler]: Unknown extern function eth_mac_addr [2022-12-14 05:53:32,891 WARN L623 FunctionHandler]: Unknown extern function eth_validate_addr [2022-12-14 05:53:32,893 WARN L623 FunctionHandler]: Unknown extern function ldv_initialize [2022-12-14 05:53:32,893 WARN L623 FunctionHandler]: Unknown extern function ldv_switch_to_interrupt_context [2022-12-14 05:53:32,894 WARN L623 FunctionHandler]: Unknown extern function ldv_switch_to_process_context [2022-12-14 05:53:32,912 WARN L623 FunctionHandler]: Unknown extern function ldv_pre_probe [2022-12-14 05:53:32,913 WARN L623 FunctionHandler]: Unknown extern function ldv_pre_register_netdev [2022-12-14 05:53:32,919 WARN L623 FunctionHandler]: Unknown extern function ldv_switch_to_interrupt_context [2022-12-14 05:53:32,919 WARN L623 FunctionHandler]: Unknown extern function ldv_switch_to_process_context [2022-12-14 05:53:32,921 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-12-14 05:53:32,922 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-12-14 05:53:32,922 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-12-14 05:53:32,922 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-12-14 05:53:32,922 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-12-14 05:53:32,922 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-12-14 05:53:32,922 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-12-14 05:53:32,922 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-12-14 05:53:32,922 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-12-14 05:53:32,923 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-12-14 05:53:32,923 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-12-14 05:53:32,923 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-12-14 05:53:32,923 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-12-14 05:53:32,923 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-12-14 05:53:32,923 WARN L623 FunctionHandler]: Unknown extern function alloc_etherdev_mqs [2022-12-14 05:53:32,924 WARN L623 FunctionHandler]: Unknown extern function register_netdev [2022-12-14 05:53:32,924 WARN L623 FunctionHandler]: Unknown extern function free_netdev [2022-12-14 05:53:32,924 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-12-14 05:53:32,924 WARN L623 FunctionHandler]: Unknown extern function mod_timer [2022-12-14 05:53:32,925 WARN L623 FunctionHandler]: Unknown extern function free_irq [2022-12-14 05:53:32,925 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-12-14 05:53:32,925 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-12-14 05:53:32,925 WARN L623 FunctionHandler]: Unknown extern function del_timer_sync [2022-12-14 05:53:32,925 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-12-14 05:53:32,926 WARN L623 FunctionHandler]: Unknown extern function free_irq [2022-12-14 05:53:32,926 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-12-14 05:53:32,926 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-12-14 05:53:32,926 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-12-14 05:53:32,926 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-12-14 05:53:32,926 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-12-14 05:53:32,926 WARN L623 FunctionHandler]: Unknown extern function mod_timer [2022-12-14 05:53:32,927 WARN L623 FunctionHandler]: Unknown extern function unregister_netdev [2022-12-14 05:53:32,927 WARN L623 FunctionHandler]: Unknown extern function free_netdev [2022-12-14 05:53:32,927 WARN L623 FunctionHandler]: Unknown extern function __pci_register_driver [2022-12-14 05:53:32,927 WARN L623 FunctionHandler]: Unknown extern function unregister_netdev [2022-12-14 05:53:32,927 WARN L623 FunctionHandler]: Unknown extern function free_netdev [2022-12-14 05:53:32,928 WARN L623 FunctionHandler]: Unknown extern function pci_unregister_driver [2022-12-14 05:53:32,929 WARN L623 FunctionHandler]: Unknown extern function ldv_check_alloc_flags [2022-12-14 05:53:32,929 WARN L623 FunctionHandler]: Unknown extern function ldv_after_alloc [2022-12-14 05:53:32,930 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 05:53:32,944 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_d6d61deb-1de3-4563-91ea-1219f0f7c25e/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-amd-pcnet32.cil.i[410165,410178] [2022-12-14 05:53:32,945 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_d6d61deb-1de3-4563-91ea-1219f0f7c25e/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-amd-pcnet32.cil.i[410334,410347] [2022-12-14 05:53:32,945 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_d6d61deb-1de3-4563-91ea-1219f0f7c25e/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-amd-pcnet32.cil.i[410501,410514] [2022-12-14 05:53:32,945 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_d6d61deb-1de3-4563-91ea-1219f0f7c25e/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-amd-pcnet32.cil.i[410669,410682] [2022-12-14 05:53:32,946 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 05:53:32,948 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 05:53:32,948 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 05:53:32,948 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 05:53:32,952 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 05:53:33,078 INFO L208 MainTranslator]: Completed translation [2022-12-14 05:53:33,078 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:53:33 WrapperNode [2022-12-14 05:53:33,078 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 05:53:33,079 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 05:53:33,079 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 05:53:33,079 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 05:53:33,085 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:53:33" (1/1) ... [2022-12-14 05:53:33,140 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:53:33" (1/1) ... [2022-12-14 05:53:33,282 INFO L138 Inliner]: procedures = 541, calls = 2859, calls flagged for inlining = 282, calls inlined = 248, statements flattened = 7269 [2022-12-14 05:53:33,282 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 05:53:33,282 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 05:53:33,283 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 05:53:33,283 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 05:53:33,290 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:53:33" (1/1) ... [2022-12-14 05:53:33,291 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:53:33" (1/1) ... [2022-12-14 05:53:33,317 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:53:33" (1/1) ... [2022-12-14 05:53:33,318 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:53:33" (1/1) ... [2022-12-14 05:53:33,421 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:53:33" (1/1) ... [2022-12-14 05:53:33,462 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:53:33" (1/1) ... [2022-12-14 05:53:33,496 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:53:33" (1/1) ... [2022-12-14 05:53:33,509 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:53:33" (1/1) ... [2022-12-14 05:53:33,551 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 05:53:33,552 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 05:53:33,552 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 05:53:33,552 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 05:53:33,553 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:53:33" (1/1) ... [2022-12-14 05:53:33,558 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 05:53:33,568 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6d61deb-1de3-4563-91ea-1219f0f7c25e/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 05:53:33,581 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6d61deb-1de3-4563-91ea-1219f0f7c25e/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 05:53:33,583 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6d61deb-1de3-4563-91ea-1219f0f7c25e/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 05:53:33,613 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_write [2022-12-14 05:53:33,613 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_write [2022-12-14 05:53:33,613 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-12-14 05:53:33,613 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-12-14 05:53:33,613 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_alloc_skb [2022-12-14 05:53:33,613 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_alloc_skb [2022-12-14 05:53:33,614 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2022-12-14 05:53:33,614 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2022-12-14 05:53:33,614 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-12-14 05:53:33,614 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-12-14 05:53:33,614 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2022-12-14 05:53:33,614 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2022-12-14 05:53:33,614 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-12-14 05:53:33,614 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-12-14 05:53:33,614 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2022-12-14 05:53:33,614 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2022-12-14 05:53:33,614 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2022-12-14 05:53:33,614 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2022-12-14 05:53:33,615 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_63 [2022-12-14 05:53:33,615 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_63 [2022-12-14 05:53:33,615 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_interrupt [2022-12-14 05:53:33,615 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_interrupt [2022-12-14 05:53:33,615 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2022-12-14 05:53:33,615 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2022-12-14 05:53:33,615 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2022-12-14 05:53:33,615 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2022-12-14 05:53:33,615 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-12-14 05:53:33,615 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-12-14 05:53:33,615 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2022-12-14 05:53:33,615 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2022-12-14 05:53:33,615 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2022-12-14 05:53:33,615 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2022-12-14 05:53:33,615 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-12-14 05:53:33,615 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-12-14 05:53:33,616 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2022-12-14 05:53:33,616 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2022-12-14 05:53:33,616 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-14 05:53:33,616 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_dwio_write_bcr [2022-12-14 05:53:33,616 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_dwio_write_bcr [2022-12-14 05:53:33,616 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-12-14 05:53:33,616 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-12-14 05:53:33,616 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2022-12-14 05:53:33,616 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2022-12-14 05:53:33,616 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-12-14 05:53:33,617 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-12-14 05:53:33,617 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-12-14 05:53:33,617 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_netdev [2022-12-14 05:53:33,617 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_netdev [2022-12-14 05:53:33,617 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-12-14 05:53:33,617 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-12-14 05:53:33,617 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-12-14 05:53:33,617 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_purge_tx_ring [2022-12-14 05:53:33,617 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_purge_tx_ring [2022-12-14 05:53:33,617 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-14 05:53:33,618 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2022-12-14 05:53:33,618 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2022-12-14 05:53:33,618 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-12-14 05:53:33,618 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-12-14 05:53:33,618 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_wio_write_bcr [2022-12-14 05:53:33,618 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_wio_write_bcr [2022-12-14 05:53:33,618 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2022-12-14 05:53:33,618 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2022-12-14 05:53:33,618 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2022-12-14 05:53:33,618 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2022-12-14 05:53:33,619 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2022-12-14 05:53:33,619 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2022-12-14 05:53:33,619 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2022-12-14 05:53:33,619 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2022-12-14 05:53:33,619 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2022-12-14 05:53:33,619 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2022-12-14 05:53:33,619 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_netif_start [2022-12-14 05:53:33,619 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_netif_start [2022-12-14 05:53:33,619 INFO L130 BoogieDeclarations]: Found specification of procedure napi_enable [2022-12-14 05:53:33,619 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_enable [2022-12-14 05:53:33,619 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~~u16~0 [2022-12-14 05:53:33,619 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~~u16~0 [2022-12-14 05:53:33,619 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2022-12-14 05:53:33,619 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2022-12-14 05:53:33,620 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-12-14 05:53:33,620 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer [2022-12-14 05:53:33,620 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer [2022-12-14 05:53:33,620 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_open [2022-12-14 05:53:33,620 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_open [2022-12-14 05:53:33,620 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 05:53:33,620 INFO L130 BoogieDeclarations]: Found specification of procedure is_valid_ether_addr [2022-12-14 05:53:33,620 INFO L138 BoogieDeclarations]: Found implementation of procedure is_valid_ether_addr [2022-12-14 05:53:33,620 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-12-14 05:53:33,620 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-12-14 05:53:33,620 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-12-14 05:53:33,620 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-12-14 05:53:33,620 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-12-14 05:53:33,621 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-12-14 05:53:33,621 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-12-14 05:53:33,621 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-12-14 05:53:33,621 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_wio_reset [2022-12-14 05:53:33,621 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_wio_reset [2022-12-14 05:53:33,621 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_lock_of_pcnet32_private [2022-12-14 05:53:33,621 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_lock_of_pcnet32_private [2022-12-14 05:53:33,621 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2022-12-14 05:53:33,621 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2022-12-14 05:53:33,621 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_restart [2022-12-14 05:53:33,621 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_restart [2022-12-14 05:53:33,621 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2022-12-14 05:53:33,621 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2022-12-14 05:53:33,621 INFO L130 BoogieDeclarations]: Found specification of procedure napi_disable [2022-12-14 05:53:33,621 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_disable [2022-12-14 05:53:33,621 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-12-14 05:53:33,621 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-12-14 05:53:33,621 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2022-12-14 05:53:33,622 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2022-12-14 05:53:33,622 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2022-12-14 05:53:33,622 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2022-12-14 05:53:33,622 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_dwio_read_csr [2022-12-14 05:53:33,622 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_dwio_read_csr [2022-12-14 05:53:33,622 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~TO~VOID [2022-12-14 05:53:33,622 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~TO~VOID [2022-12-14 05:53:33,622 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2022-12-14 05:53:33,622 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2022-12-14 05:53:33,622 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_dwio_reset [2022-12-14 05:53:33,622 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_dwio_reset [2022-12-14 05:53:33,622 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_read [2022-12-14 05:53:33,622 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_read [2022-12-14 05:53:33,622 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 05:53:33,622 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 05:53:33,623 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2022-12-14 05:53:33,623 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2022-12-14 05:53:33,623 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-12-14 05:53:33,623 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-12-14 05:53:33,623 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-12-14 05:53:33,623 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-12-14 05:53:33,623 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_pm_resume [2022-12-14 05:53:33,623 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_pm_resume [2022-12-14 05:53:33,623 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-12-14 05:53:33,623 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-12-14 05:53:33,623 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_check_media [2022-12-14 05:53:33,623 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_check_media [2022-12-14 05:53:33,623 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_get_regs_len [2022-12-14 05:53:33,623 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_get_regs_len [2022-12-14 05:53:33,623 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_size_call_parameter [2022-12-14 05:53:33,623 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2022-12-14 05:53:33,623 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2022-12-14 05:53:33,623 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_poll_controller [2022-12-14 05:53:33,624 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_poll_controller [2022-12-14 05:53:33,624 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_free_ring [2022-12-14 05:53:33,624 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_free_ring [2022-12-14 05:53:33,624 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2022-12-14 05:53:33,624 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2022-12-14 05:53:33,624 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-12-14 05:53:33,624 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-12-14 05:53:33,624 INFO L130 BoogieDeclarations]: Found specification of procedure kcalloc [2022-12-14 05:53:33,624 INFO L138 BoogieDeclarations]: Found implementation of procedure kcalloc [2022-12-14 05:53:33,624 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2022-12-14 05:53:33,624 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2022-12-14 05:53:33,624 INFO L130 BoogieDeclarations]: Found specification of procedure pci_alloc_consistent [2022-12-14 05:53:33,624 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_alloc_consistent [2022-12-14 05:53:33,624 INFO L130 BoogieDeclarations]: Found specification of procedure mii_ethtool_gset [2022-12-14 05:53:33,624 INFO L138 BoogieDeclarations]: Found implementation of procedure mii_ethtool_gset [2022-12-14 05:53:33,624 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_purge_rx_ring [2022-12-14 05:53:33,624 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_purge_rx_ring [2022-12-14 05:53:33,624 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_dwio_write_csr [2022-12-14 05:53:33,625 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_dwio_write_csr [2022-12-14 05:53:33,625 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_tx_timeout [2022-12-14 05:53:33,625 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_tx_timeout [2022-12-14 05:53:33,625 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2022-12-14 05:53:33,625 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2022-12-14 05:53:33,625 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-14 05:53:33,625 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_netif_stop [2022-12-14 05:53:33,625 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_netif_stop [2022-12-14 05:53:33,625 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2022-12-14 05:53:33,625 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2022-12-14 05:53:33,625 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-12-14 05:53:33,625 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_lock_of_pcnet32_private [2022-12-14 05:53:33,625 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_lock_of_pcnet32_private [2022-12-14 05:53:33,625 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-12-14 05:53:33,625 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_wio_read_csr [2022-12-14 05:53:33,625 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_wio_read_csr [2022-12-14 05:53:33,625 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_set_multicast_list [2022-12-14 05:53:33,625 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_set_multicast_list [2022-12-14 05:53:33,626 INFO L130 BoogieDeclarations]: Found specification of procedure outw [2022-12-14 05:53:33,626 INFO L138 BoogieDeclarations]: Found implementation of procedure outw [2022-12-14 05:53:33,626 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-12-14 05:53:33,626 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-12-14 05:53:33,626 INFO L130 BoogieDeclarations]: Found specification of procedure mii_link_ok [2022-12-14 05:53:33,626 INFO L138 BoogieDeclarations]: Found implementation of procedure mii_link_ok [2022-12-14 05:53:33,626 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-12-14 05:53:33,626 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-12-14 05:53:33,626 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_probe1 [2022-12-14 05:53:33,626 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_probe1 [2022-12-14 05:53:33,626 INFO L130 BoogieDeclarations]: Found specification of procedure outl [2022-12-14 05:53:33,626 INFO L138 BoogieDeclarations]: Found implementation of procedure outl [2022-12-14 05:53:33,626 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq [2022-12-14 05:53:33,626 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq [2022-12-14 05:53:33,626 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_remove_one [2022-12-14 05:53:33,626 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_remove_one [2022-12-14 05:53:33,626 INFO L130 BoogieDeclarations]: Found specification of procedure mii_ethtool_sset [2022-12-14 05:53:33,627 INFO L138 BoogieDeclarations]: Found implementation of procedure mii_ethtool_sset [2022-12-14 05:53:33,627 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~X~~u16~0~TO~VOID [2022-12-14 05:53:33,627 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~X~~u16~0~TO~VOID [2022-12-14 05:53:33,627 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_dwio_read_bcr [2022-12-14 05:53:33,627 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_dwio_read_bcr [2022-12-14 05:53:33,627 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reserve [2022-12-14 05:53:33,627 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reserve [2022-12-14 05:53:33,627 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2022-12-14 05:53:33,627 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2022-12-14 05:53:33,627 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-12-14 05:53:33,627 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-12-14 05:53:33,627 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_wio_read_bcr [2022-12-14 05:53:33,627 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_wio_read_bcr [2022-12-14 05:53:33,627 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-12-14 05:53:33,627 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-12-14 05:53:33,627 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_init_ring [2022-12-14 05:53:33,627 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_init_ring [2022-12-14 05:53:33,627 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_close [2022-12-14 05:53:33,628 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_close [2022-12-14 05:53:33,628 INFO L130 BoogieDeclarations]: Found specification of procedure __release_region [2022-12-14 05:53:33,628 INFO L138 BoogieDeclarations]: Found implementation of procedure __release_region [2022-12-14 05:53:33,628 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-12-14 05:53:33,628 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-12-14 05:53:33,628 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-14 05:53:33,628 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_suspend [2022-12-14 05:53:33,628 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_suspend [2022-12-14 05:53:33,628 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-12-14 05:53:33,628 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-12-14 05:53:33,628 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2022-12-14 05:53:33,628 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2022-12-14 05:53:33,628 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_any [2022-12-14 05:53:33,628 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_any [2022-12-14 05:53:33,628 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_wio_write_csr [2022-12-14 05:53:33,628 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_wio_write_csr [2022-12-14 05:53:33,628 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_load_multicast [2022-12-14 05:53:33,629 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_load_multicast [2022-12-14 05:53:33,629 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_stop_queue [2022-12-14 05:53:33,629 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_stop_queue [2022-12-14 05:53:33,629 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_nway_reset [2022-12-14 05:53:33,629 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_nway_reset [2022-12-14 05:53:33,629 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-12-14 05:53:33,629 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-12-14 05:53:33,629 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_power_state [2022-12-14 05:53:33,629 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_power_state [2022-12-14 05:53:33,629 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2022-12-14 05:53:33,629 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2022-12-14 05:53:33,629 INFO L130 BoogieDeclarations]: Found specification of procedure inb [2022-12-14 05:53:33,629 INFO L138 BoogieDeclarations]: Found implementation of procedure inb [2022-12-14 05:53:33,629 INFO L130 BoogieDeclarations]: Found specification of procedure inl [2022-12-14 05:53:33,629 INFO L138 BoogieDeclarations]: Found implementation of procedure inl [2022-12-14 05:53:33,629 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 05:53:33,629 INFO L130 BoogieDeclarations]: Found specification of procedure __request_region [2022-12-14 05:53:33,630 INFO L138 BoogieDeclarations]: Found implementation of procedure __request_region [2022-12-14 05:53:33,630 INFO L130 BoogieDeclarations]: Found specification of procedure inw [2022-12-14 05:53:33,630 INFO L138 BoogieDeclarations]: Found implementation of procedure inw [2022-12-14 05:53:33,630 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2022-12-14 05:53:33,630 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2022-12-14 05:53:33,630 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_netdev [2022-12-14 05:53:33,630 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_netdev [2022-12-14 05:53:34,279 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 05:53:34,281 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 05:53:34,448 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-12-14 05:53:40,598 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 05:53:41,750 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 05:53:41,750 INFO L300 CfgBuilder]: Removed 9 assume(true) statements. [2022-12-14 05:53:41,755 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 05:53:41 BoogieIcfgContainer [2022-12-14 05:53:41,755 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 05:53:41,756 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 05:53:41,757 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 05:53:41,759 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 05:53:41,759 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 05:53:30" (1/3) ... [2022-12-14 05:53:41,760 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53d1e0a4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 05:53:41, skipping insertion in model container [2022-12-14 05:53:41,760 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:53:33" (2/3) ... [2022-12-14 05:53:41,760 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53d1e0a4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 05:53:41, skipping insertion in model container [2022-12-14 05:53:41,760 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 05:53:41" (3/3) ... [2022-12-14 05:53:41,761 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-amd-pcnet32.cil.i [2022-12-14 05:53:41,777 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 05:53:41,777 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2022-12-14 05:53:41,849 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 05:53:41,855 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;@28507b2d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 05:53:41,856 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-12-14 05:53:41,865 INFO L276 IsEmpty]: Start isEmpty. Operand has 1804 states, 1038 states have (on average 1.2842003853564548) internal successors, (1333), 1103 states have internal predecessors, (1333), 647 states have call successors, (647), 118 states have call predecessors, (647), 117 states have return successors, (639), 620 states have call predecessors, (639), 639 states have call successors, (639) [2022-12-14 05:53:41,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2022-12-14 05:53:41,872 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 05:53:41,873 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 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] [2022-12-14 05:53:41,873 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-12-14 05:53:41,877 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 05:53:41,877 INFO L85 PathProgramCache]: Analyzing trace with hash 19422882, now seen corresponding path program 1 times [2022-12-14 05:53:41,884 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 05:53:41,884 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1636820484] [2022-12-14 05:53:41,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:53:41,885 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 05:53:42,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:53:42,555 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-12-14 05:53:42,555 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 05:53:42,556 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1636820484] [2022-12-14 05:53:42,556 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1636820484] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 05:53:42,556 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 05:53:42,557 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 05:53:42,558 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [272745704] [2022-12-14 05:53:42,559 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 05:53:42,563 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 05:53:42,563 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 05:53:42,586 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 05:53:42,587 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 05:53:42,591 INFO L87 Difference]: Start difference. First operand has 1804 states, 1038 states have (on average 1.2842003853564548) internal successors, (1333), 1103 states have internal predecessors, (1333), 647 states have call successors, (647), 118 states have call predecessors, (647), 117 states have return successors, (639), 620 states have call predecessors, (639), 639 states have call successors, (639) Second operand has 5 states, 5 states have (on average 3.6) internal successors, (18), 4 states have internal predecessors, (18), 2 states have call successors, (8), 3 states have call predecessors, (8), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-12-14 05:53:45,006 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 05:53:47,915 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 05:53:47,915 INFO L93 Difference]: Finished difference Result 5286 states and 7853 transitions. [2022-12-14 05:53:47,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-14 05:53:47,917 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.6) internal successors, (18), 4 states have internal predecessors, (18), 2 states have call successors, (8), 3 states have call predecessors, (8), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 37 [2022-12-14 05:53:47,918 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 05:53:47,953 INFO L225 Difference]: With dead ends: 5286 [2022-12-14 05:53:47,953 INFO L226 Difference]: Without dead ends: 3477 [2022-12-14 05:53:47,970 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-12-14 05:53:47,972 INFO L413 NwaCegarLoop]: 3436 mSDtfsCounter, 2465 mSDsluCounter, 9112 mSDsCounter, 0 mSdLazyCounter, 1602 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2478 SdHoareTripleChecker+Valid, 12548 SdHoareTripleChecker+Invalid, 1606 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1602 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2022-12-14 05:53:47,973 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2478 Valid, 12548 Invalid, 1606 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3 Valid, 1602 Invalid, 1 Unknown, 0 Unchecked, 4.9s Time] [2022-12-14 05:53:47,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3477 states. [2022-12-14 05:53:48,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3477 to 3470. [2022-12-14 05:53:48,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3470 states, 1998 states have (on average 1.2747747747747749) internal successors, (2547), 2109 states have internal predecessors, (2547), 1236 states have call successors, (1236), 235 states have call predecessors, (1236), 233 states have return successors, (1236), 1193 states have call predecessors, (1236), 1230 states have call successors, (1236) [2022-12-14 05:53:48,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3470 states to 3470 states and 5019 transitions. [2022-12-14 05:53:48,193 INFO L78 Accepts]: Start accepts. Automaton has 3470 states and 5019 transitions. Word has length 37 [2022-12-14 05:53:48,193 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 05:53:48,193 INFO L495 AbstractCegarLoop]: Abstraction has 3470 states and 5019 transitions. [2022-12-14 05:53:48,193 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.6) internal successors, (18), 4 states have internal predecessors, (18), 2 states have call successors, (8), 3 states have call predecessors, (8), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-12-14 05:53:48,193 INFO L276 IsEmpty]: Start isEmpty. Operand 3470 states and 5019 transitions. [2022-12-14 05:53:48,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2022-12-14 05:53:48,195 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 05:53:48,195 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 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] [2022-12-14 05:53:48,195 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 05:53:48,195 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-12-14 05:53:48,196 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 05:53:48,196 INFO L85 PathProgramCache]: Analyzing trace with hash 463404164, now seen corresponding path program 1 times [2022-12-14 05:53:48,196 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 05:53:48,196 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1322442875] [2022-12-14 05:53:48,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:53:48,196 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 05:53:48,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:53:48,518 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-12-14 05:53:48,519 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 05:53:48,519 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1322442875] [2022-12-14 05:53:48,519 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1322442875] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 05:53:48,519 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 05:53:48,519 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 05:53:48,519 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1030732536] [2022-12-14 05:53:48,520 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 05:53:48,521 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 05:53:48,521 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 05:53:48,521 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 05:53:48,522 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 05:53:48,522 INFO L87 Difference]: Start difference. First operand 3470 states and 5019 transitions. Second operand has 5 states, 5 states have (on average 4.2) internal successors, (21), 4 states have internal predecessors, (21), 2 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-12-14 05:53:50,861 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 05:53:52,874 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 05:53:52,874 INFO L93 Difference]: Finished difference Result 4806 states and 6740 transitions. [2022-12-14 05:53:52,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 05:53:52,875 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.2) internal successors, (21), 4 states have internal predecessors, (21), 2 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 42 [2022-12-14 05:53:52,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 05:53:52,899 INFO L225 Difference]: With dead ends: 4806 [2022-12-14 05:53:52,899 INFO L226 Difference]: Without dead ends: 4804 [2022-12-14 05:53:52,903 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-12-14 05:53:52,904 INFO L413 NwaCegarLoop]: 2606 mSDtfsCounter, 1705 mSDsluCounter, 6848 mSDsCounter, 0 mSdLazyCounter, 1243 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1718 SdHoareTripleChecker+Valid, 9454 SdHoareTripleChecker+Invalid, 1245 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1243 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2022-12-14 05:53:52,904 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1718 Valid, 9454 Invalid, 1245 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1243 Invalid, 1 Unknown, 0 Unchecked, 4.1s Time] [2022-12-14 05:53:52,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4804 states. [2022-12-14 05:53:53,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4804 to 4800. [2022-12-14 05:53:53,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4800 states, 2741 states have (on average 1.2546515870120394) internal successors, (3439), 2886 states have internal predecessors, (3439), 1646 states have call successors, (1646), 410 states have call predecessors, (1646), 410 states have return successors, (1650), 1590 states have call predecessors, (1650), 1640 states have call successors, (1650) [2022-12-14 05:53:53,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4800 states to 4800 states and 6735 transitions. [2022-12-14 05:53:53,149 INFO L78 Accepts]: Start accepts. Automaton has 4800 states and 6735 transitions. Word has length 42 [2022-12-14 05:53:53,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 05:53:53,149 INFO L495 AbstractCegarLoop]: Abstraction has 4800 states and 6735 transitions. [2022-12-14 05:53:53,149 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.2) internal successors, (21), 4 states have internal predecessors, (21), 2 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-12-14 05:53:53,149 INFO L276 IsEmpty]: Start isEmpty. Operand 4800 states and 6735 transitions. [2022-12-14 05:53:53,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-12-14 05:53:53,151 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 05:53:53,151 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-12-14 05:53:53,151 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-14 05:53:53,151 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-12-14 05:53:53,152 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 05:53:53,152 INFO L85 PathProgramCache]: Analyzing trace with hash -2054761566, now seen corresponding path program 1 times [2022-12-14 05:53:53,152 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 05:53:53,152 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [499377385] [2022-12-14 05:53:53,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:53:53,153 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 05:53:53,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:53:53,420 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-12-14 05:53:53,420 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 05:53:53,420 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [499377385] [2022-12-14 05:53:53,420 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [499377385] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 05:53:53,420 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 05:53:53,420 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 05:53:53,421 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1194174884] [2022-12-14 05:53:53,421 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 05:53:53,421 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 05:53:53,421 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 05:53:53,422 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 05:53:53,422 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 05:53:53,422 INFO L87 Difference]: Start difference. First operand 4800 states and 6735 transitions. Second operand has 5 states, 5 states have (on average 4.2) internal successors, (21), 4 states have internal predecessors, (21), 2 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-12-14 05:53:55,764 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 05:53:57,759 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 05:53:57,759 INFO L93 Difference]: Finished difference Result 4814 states and 6746 transitions. [2022-12-14 05:53:57,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 05:53:57,760 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.2) internal successors, (21), 4 states have internal predecessors, (21), 2 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 47 [2022-12-14 05:53:57,760 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 05:53:57,778 INFO L225 Difference]: With dead ends: 4814 [2022-12-14 05:53:57,778 INFO L226 Difference]: Without dead ends: 4812 [2022-12-14 05:53:57,780 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-12-14 05:53:57,781 INFO L413 NwaCegarLoop]: 2600 mSDtfsCounter, 1705 mSDsluCounter, 6836 mSDsCounter, 0 mSdLazyCounter, 1243 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1717 SdHoareTripleChecker+Valid, 9436 SdHoareTripleChecker+Invalid, 1245 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1243 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2022-12-14 05:53:57,781 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1717 Valid, 9436 Invalid, 1245 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1243 Invalid, 1 Unknown, 0 Unchecked, 4.1s Time] [2022-12-14 05:53:57,786 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4812 states. [2022-12-14 05:53:57,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4812 to 4808. [2022-12-14 05:53:57,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4808 states, 2747 states have (on average 1.2540953767746632) internal successors, (3445), 2892 states have internal predecessors, (3445), 1646 states have call successors, (1646), 412 states have call predecessors, (1646), 412 states have return successors, (1650), 1590 states have call predecessors, (1650), 1640 states have call successors, (1650) [2022-12-14 05:53:57,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4808 states to 4808 states and 6741 transitions. [2022-12-14 05:53:57,975 INFO L78 Accepts]: Start accepts. Automaton has 4808 states and 6741 transitions. Word has length 47 [2022-12-14 05:53:57,975 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 05:53:57,975 INFO L495 AbstractCegarLoop]: Abstraction has 4808 states and 6741 transitions. [2022-12-14 05:53:57,976 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.2) internal successors, (21), 4 states have internal predecessors, (21), 2 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-12-14 05:53:57,976 INFO L276 IsEmpty]: Start isEmpty. Operand 4808 states and 6741 transitions. [2022-12-14 05:53:57,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2022-12-14 05:53:57,977 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 05:53:57,977 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 05:53:57,977 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-14 05:53:57,977 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-12-14 05:53:57,977 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 05:53:57,977 INFO L85 PathProgramCache]: Analyzing trace with hash -684346843, now seen corresponding path program 1 times [2022-12-14 05:53:57,978 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 05:53:57,978 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1476733217] [2022-12-14 05:53:57,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:53:57,978 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 05:53:58,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:53:58,208 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-12-14 05:53:58,208 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 05:53:58,208 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1476733217] [2022-12-14 05:53:58,209 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1476733217] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 05:53:58,209 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 05:53:58,209 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 05:53:58,209 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [830369188] [2022-12-14 05:53:58,209 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 05:53:58,209 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 05:53:58,210 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 05:53:58,210 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 05:53:58,210 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 05:53:58,210 INFO L87 Difference]: Start difference. First operand 4808 states and 6741 transitions. Second operand has 5 states, 5 states have (on average 5.0) internal successors, (25), 4 states have internal predecessors, (25), 2 states have call successors, (12), 3 states have call predecessors, (12), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-12-14 05:54:00,554 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 05:54:02,787 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 05:54:02,787 INFO L93 Difference]: Finished difference Result 4822 states and 6752 transitions. [2022-12-14 05:54:02,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 05:54:02,788 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.0) internal successors, (25), 4 states have internal predecessors, (25), 2 states have call successors, (12), 3 states have call predecessors, (12), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 59 [2022-12-14 05:54:02,788 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 05:54:02,804 INFO L225 Difference]: With dead ends: 4822 [2022-12-14 05:54:02,804 INFO L226 Difference]: Without dead ends: 4820 [2022-12-14 05:54:02,806 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-12-14 05:54:02,806 INFO L413 NwaCegarLoop]: 2600 mSDtfsCounter, 1700 mSDsluCounter, 6836 mSDsCounter, 0 mSdLazyCounter, 1243 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1711 SdHoareTripleChecker+Valid, 9436 SdHoareTripleChecker+Invalid, 1245 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1243 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2022-12-14 05:54:02,807 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1711 Valid, 9436 Invalid, 1245 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1243 Invalid, 1 Unknown, 0 Unchecked, 4.4s Time] [2022-12-14 05:54:02,811 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4820 states. [2022-12-14 05:54:02,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4820 to 4816. [2022-12-14 05:54:02,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4816 states, 2753 states have (on average 1.2535415909916454) internal successors, (3451), 2898 states have internal predecessors, (3451), 1646 states have call successors, (1646), 414 states have call predecessors, (1646), 414 states have return successors, (1650), 1590 states have call predecessors, (1650), 1640 states have call successors, (1650) [2022-12-14 05:54:02,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4816 states to 4816 states and 6747 transitions. [2022-12-14 05:54:02,986 INFO L78 Accepts]: Start accepts. Automaton has 4816 states and 6747 transitions. Word has length 59 [2022-12-14 05:54:02,986 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 05:54:02,987 INFO L495 AbstractCegarLoop]: Abstraction has 4816 states and 6747 transitions. [2022-12-14 05:54:02,987 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.0) internal successors, (25), 4 states have internal predecessors, (25), 2 states have call successors, (12), 3 states have call predecessors, (12), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-12-14 05:54:02,987 INFO L276 IsEmpty]: Start isEmpty. Operand 4816 states and 6747 transitions. [2022-12-14 05:54:02,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-12-14 05:54:02,988 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 05:54:02,988 INFO L195 NwaCegarLoop]: trace histogram [5, 4, 4, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 05:54:02,988 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-14 05:54:02,989 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-12-14 05:54:02,989 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 05:54:02,989 INFO L85 PathProgramCache]: Analyzing trace with hash -2016433631, now seen corresponding path program 1 times [2022-12-14 05:54:02,989 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 05:54:02,989 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [109250727] [2022-12-14 05:54:02,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:54:02,989 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 05:54:03,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:54:03,206 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2022-12-14 05:54:03,206 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 05:54:03,206 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [109250727] [2022-12-14 05:54:03,206 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [109250727] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 05:54:03,206 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 05:54:03,206 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 05:54:03,206 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2103675634] [2022-12-14 05:54:03,207 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 05:54:03,207 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 05:54:03,207 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 05:54:03,207 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 05:54:03,208 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 05:54:03,208 INFO L87 Difference]: Start difference. First operand 4816 states and 6747 transitions. Second operand has 5 states, 5 states have (on average 5.0) internal successors, (25), 4 states have internal predecessors, (25), 2 states have call successors, (13), 3 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-12-14 05:54:05,591 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 05:54:07,728 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 05:54:07,728 INFO L93 Difference]: Finished difference Result 4830 states and 6758 transitions. [2022-12-14 05:54:07,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 05:54:07,729 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.0) internal successors, (25), 4 states have internal predecessors, (25), 2 states have call successors, (13), 3 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 64 [2022-12-14 05:54:07,729 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 05:54:07,744 INFO L225 Difference]: With dead ends: 4830 [2022-12-14 05:54:07,744 INFO L226 Difference]: Without dead ends: 4828 [2022-12-14 05:54:07,746 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-12-14 05:54:07,747 INFO L413 NwaCegarLoop]: 2600 mSDtfsCounter, 1700 mSDsluCounter, 6836 mSDsCounter, 0 mSdLazyCounter, 1243 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1710 SdHoareTripleChecker+Valid, 9436 SdHoareTripleChecker+Invalid, 1245 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1243 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2022-12-14 05:54:07,747 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1710 Valid, 9436 Invalid, 1245 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1243 Invalid, 1 Unknown, 0 Unchecked, 4.3s Time] [2022-12-14 05:54:07,751 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4828 states. [2022-12-14 05:54:07,904 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4828 to 4824. [2022-12-14 05:54:07,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4824 states, 2759 states have (on average 1.2529902138455962) internal successors, (3457), 2904 states have internal predecessors, (3457), 1646 states have call successors, (1646), 416 states have call predecessors, (1646), 416 states have return successors, (1650), 1590 states have call predecessors, (1650), 1640 states have call successors, (1650) [2022-12-14 05:54:07,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4824 states to 4824 states and 6753 transitions. [2022-12-14 05:54:07,929 INFO L78 Accepts]: Start accepts. Automaton has 4824 states and 6753 transitions. Word has length 64 [2022-12-14 05:54:07,929 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 05:54:07,929 INFO L495 AbstractCegarLoop]: Abstraction has 4824 states and 6753 transitions. [2022-12-14 05:54:07,930 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.0) internal successors, (25), 4 states have internal predecessors, (25), 2 states have call successors, (13), 3 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-12-14 05:54:07,930 INFO L276 IsEmpty]: Start isEmpty. Operand 4824 states and 6753 transitions. [2022-12-14 05:54:07,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2022-12-14 05:54:07,931 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 05:54:07,931 INFO L195 NwaCegarLoop]: trace histogram [6, 5, 5, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 05:54:07,931 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-14 05:54:07,931 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-12-14 05:54:07,931 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 05:54:07,931 INFO L85 PathProgramCache]: Analyzing trace with hash 2046453605, now seen corresponding path program 1 times [2022-12-14 05:54:07,931 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 05:54:07,932 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1951783752] [2022-12-14 05:54:07,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:54:07,932 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 05:54:07,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:54:08,152 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-12-14 05:54:08,152 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 05:54:08,152 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1951783752] [2022-12-14 05:54:08,152 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1951783752] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 05:54:08,152 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 05:54:08,152 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 05:54:08,152 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2105745507] [2022-12-14 05:54:08,153 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 05:54:08,153 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 05:54:08,153 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 05:54:08,154 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 05:54:08,154 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 05:54:08,154 INFO L87 Difference]: Start difference. First operand 4824 states and 6753 transitions. Second operand has 5 states, 5 states have (on average 5.0) internal successors, (25), 4 states have internal predecessors, (25), 2 states have call successors, (14), 3 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-12-14 05:54:10,520 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 05:54:12,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 05:54:12,943 INFO L93 Difference]: Finished difference Result 4838 states and 6764 transitions. [2022-12-14 05:54:12,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 05:54:12,944 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.0) internal successors, (25), 4 states have internal predecessors, (25), 2 states have call successors, (14), 3 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 69 [2022-12-14 05:54:12,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 05:54:12,966 INFO L225 Difference]: With dead ends: 4838 [2022-12-14 05:54:12,966 INFO L226 Difference]: Without dead ends: 4836 [2022-12-14 05:54:12,968 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-12-14 05:54:12,969 INFO L413 NwaCegarLoop]: 2600 mSDtfsCounter, 1700 mSDsluCounter, 6836 mSDsCounter, 0 mSdLazyCounter, 1243 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1709 SdHoareTripleChecker+Valid, 9436 SdHoareTripleChecker+Invalid, 1245 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1243 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2022-12-14 05:54:12,969 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1709 Valid, 9436 Invalid, 1245 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1243 Invalid, 1 Unknown, 0 Unchecked, 4.6s Time] [2022-12-14 05:54:12,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4836 states. [2022-12-14 05:54:13,145 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4836 to 4832. [2022-12-14 05:54:13,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4832 states, 2765 states have (on average 1.2524412296564196) internal successors, (3463), 2910 states have internal predecessors, (3463), 1646 states have call successors, (1646), 418 states have call predecessors, (1646), 418 states have return successors, (1650), 1590 states have call predecessors, (1650), 1640 states have call successors, (1650) [2022-12-14 05:54:13,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4832 states to 4832 states and 6759 transitions. [2022-12-14 05:54:13,166 INFO L78 Accepts]: Start accepts. Automaton has 4832 states and 6759 transitions. Word has length 69 [2022-12-14 05:54:13,166 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 05:54:13,166 INFO L495 AbstractCegarLoop]: Abstraction has 4832 states and 6759 transitions. [2022-12-14 05:54:13,167 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.0) internal successors, (25), 4 states have internal predecessors, (25), 2 states have call successors, (14), 3 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-12-14 05:54:13,167 INFO L276 IsEmpty]: Start isEmpty. Operand 4832 states and 6759 transitions. [2022-12-14 05:54:13,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-12-14 05:54:13,168 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 05:54:13,168 INFO L195 NwaCegarLoop]: trace histogram [7, 6, 6, 3, 3, 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] [2022-12-14 05:54:13,168 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-14 05:54:13,168 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-12-14 05:54:13,168 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 05:54:13,168 INFO L85 PathProgramCache]: Analyzing trace with hash -861794910, now seen corresponding path program 1 times [2022-12-14 05:54:13,168 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 05:54:13,169 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1998854633] [2022-12-14 05:54:13,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:54:13,169 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 05:54:13,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:54:13,358 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2022-12-14 05:54:13,359 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 05:54:13,359 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1998854633] [2022-12-14 05:54:13,359 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1998854633] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 05:54:13,359 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 05:54:13,359 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 05:54:13,359 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1193260401] [2022-12-14 05:54:13,359 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 05:54:13,360 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 05:54:13,360 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 05:54:13,360 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 05:54:13,360 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 05:54:13,360 INFO L87 Difference]: Start difference. First operand 4832 states and 6759 transitions. Second operand has 5 states, 5 states have (on average 4.2) internal successors, (21), 4 states have internal predecessors, (21), 2 states have call successors, (14), 3 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-12-14 05:54:15,724 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 05:54:17,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 05:54:17,508 INFO L93 Difference]: Finished difference Result 4846 states and 6770 transitions. [2022-12-14 05:54:17,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 05:54:17,508 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.2) internal successors, (21), 4 states have internal predecessors, (21), 2 states have call successors, (14), 3 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 67 [2022-12-14 05:54:17,509 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 05:54:17,520 INFO L225 Difference]: With dead ends: 4846 [2022-12-14 05:54:17,521 INFO L226 Difference]: Without dead ends: 4844 [2022-12-14 05:54:17,522 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-12-14 05:54:17,523 INFO L413 NwaCegarLoop]: 2600 mSDtfsCounter, 1705 mSDsluCounter, 6836 mSDsCounter, 0 mSdLazyCounter, 1243 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1713 SdHoareTripleChecker+Valid, 9436 SdHoareTripleChecker+Invalid, 1245 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1243 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2022-12-14 05:54:17,523 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1713 Valid, 9436 Invalid, 1245 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1243 Invalid, 1 Unknown, 0 Unchecked, 3.9s Time] [2022-12-14 05:54:17,526 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4844 states. [2022-12-14 05:54:17,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4844 to 4840. [2022-12-14 05:54:17,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4840 states, 2771 states have (on average 1.2518946228798267) internal successors, (3469), 2916 states have internal predecessors, (3469), 1646 states have call successors, (1646), 420 states have call predecessors, (1646), 420 states have return successors, (1650), 1590 states have call predecessors, (1650), 1640 states have call successors, (1650) [2022-12-14 05:54:17,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4840 states to 4840 states and 6765 transitions. [2022-12-14 05:54:17,697 INFO L78 Accepts]: Start accepts. Automaton has 4840 states and 6765 transitions. Word has length 67 [2022-12-14 05:54:17,697 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 05:54:17,697 INFO L495 AbstractCegarLoop]: Abstraction has 4840 states and 6765 transitions. [2022-12-14 05:54:17,697 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.2) internal successors, (21), 4 states have internal predecessors, (21), 2 states have call successors, (14), 3 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-12-14 05:54:17,697 INFO L276 IsEmpty]: Start isEmpty. Operand 4840 states and 6765 transitions. [2022-12-14 05:54:17,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2022-12-14 05:54:17,698 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 05:54:17,698 INFO L195 NwaCegarLoop]: trace histogram [8, 7, 7, 3, 3, 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] [2022-12-14 05:54:17,698 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-14 05:54:17,698 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-12-14 05:54:17,699 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 05:54:17,699 INFO L85 PathProgramCache]: Analyzing trace with hash 881409028, now seen corresponding path program 1 times [2022-12-14 05:54:17,699 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 05:54:17,699 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [224757128] [2022-12-14 05:54:17,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:54:17,699 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 05:54:17,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:54:17,879 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 95 trivial. 0 not checked. [2022-12-14 05:54:17,879 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 05:54:17,879 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [224757128] [2022-12-14 05:54:17,879 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [224757128] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 05:54:17,879 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 05:54:17,879 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 05:54:17,879 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1184743644] [2022-12-14 05:54:17,879 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 05:54:17,880 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 05:54:17,880 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 05:54:17,880 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 05:54:17,880 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 05:54:17,881 INFO L87 Difference]: Start difference. First operand 4840 states and 6765 transitions. Second operand has 5 states, 5 states have (on average 4.2) internal successors, (21), 4 states have internal predecessors, (21), 2 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-12-14 05:54:20,330 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 05:54:22,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 05:54:22,943 INFO L93 Difference]: Finished difference Result 6249 states and 8622 transitions. [2022-12-14 05:54:22,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-14 05:54:22,944 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.2) internal successors, (21), 4 states have internal predecessors, (21), 2 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 72 [2022-12-14 05:54:22,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 05:54:22,961 INFO L225 Difference]: With dead ends: 6249 [2022-12-14 05:54:22,962 INFO L226 Difference]: Without dead ends: 6247 [2022-12-14 05:54:22,964 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-12-14 05:54:22,964 INFO L413 NwaCegarLoop]: 2672 mSDtfsCounter, 1393 mSDsluCounter, 7456 mSDsCounter, 0 mSdLazyCounter, 1328 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1398 SdHoareTripleChecker+Valid, 10128 SdHoareTripleChecker+Invalid, 1332 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1328 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2022-12-14 05:54:22,964 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1398 Valid, 10128 Invalid, 1332 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1328 Invalid, 1 Unknown, 0 Unchecked, 4.7s Time] [2022-12-14 05:54:22,968 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6247 states. [2022-12-14 05:54:23,174 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6247 to 6238. [2022-12-14 05:54:23,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6238 states, 3530 states have (on average 1.2492917847025495) internal successors, (4410), 3752 states have internal predecessors, (4410), 2090 states have call successors, (2090), 626 states have call predecessors, (2090), 615 states have return successors, (2113), 1967 states have call predecessors, (2113), 2081 states have call successors, (2113) [2022-12-14 05:54:23,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6238 states to 6238 states and 8613 transitions. [2022-12-14 05:54:23,202 INFO L78 Accepts]: Start accepts. Automaton has 6238 states and 8613 transitions. Word has length 72 [2022-12-14 05:54:23,202 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 05:54:23,202 INFO L495 AbstractCegarLoop]: Abstraction has 6238 states and 8613 transitions. [2022-12-14 05:54:23,202 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.2) internal successors, (21), 4 states have internal predecessors, (21), 2 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-12-14 05:54:23,202 INFO L276 IsEmpty]: Start isEmpty. Operand 6238 states and 8613 transitions. [2022-12-14 05:54:23,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-12-14 05:54:23,203 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 05:54:23,203 INFO L195 NwaCegarLoop]: trace histogram [9, 8, 8, 3, 3, 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] [2022-12-14 05:54:23,204 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-12-14 05:54:23,204 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-12-14 05:54:23,204 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 05:54:23,204 INFO L85 PathProgramCache]: Analyzing trace with hash -884551006, now seen corresponding path program 1 times [2022-12-14 05:54:23,204 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 05:54:23,204 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1231655351] [2022-12-14 05:54:23,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:54:23,204 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 05:54:23,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:54:23,409 INFO L134 CoverageAnalysis]: Checked inductivity of 139 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 123 trivial. 0 not checked. [2022-12-14 05:54:23,409 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 05:54:23,409 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1231655351] [2022-12-14 05:54:23,409 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1231655351] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 05:54:23,409 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 05:54:23,410 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 05:54:23,410 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1124027080] [2022-12-14 05:54:23,410 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 05:54:23,410 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 05:54:23,410 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 05:54:23,411 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 05:54:23,411 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 05:54:23,411 INFO L87 Difference]: Start difference. First operand 6238 states and 8613 transitions. Second operand has 5 states, 5 states have (on average 4.2) internal successors, (21), 4 states have internal predecessors, (21), 2 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-12-14 05:54:25,795 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 05:54:27,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 05:54:27,891 INFO L93 Difference]: Finished difference Result 6256 states and 8628 transitions. [2022-12-14 05:54:27,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 05:54:27,892 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.2) internal successors, (21), 4 states have internal predecessors, (21), 2 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 77 [2022-12-14 05:54:27,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 05:54:27,908 INFO L225 Difference]: With dead ends: 6256 [2022-12-14 05:54:27,908 INFO L226 Difference]: Without dead ends: 6254 [2022-12-14 05:54:27,910 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-12-14 05:54:27,911 INFO L413 NwaCegarLoop]: 2588 mSDtfsCounter, 1705 mSDsluCounter, 6812 mSDsCounter, 0 mSdLazyCounter, 1243 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1711 SdHoareTripleChecker+Valid, 9400 SdHoareTripleChecker+Invalid, 1245 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1243 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2022-12-14 05:54:27,911 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1711 Valid, 9400 Invalid, 1245 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1243 Invalid, 1 Unknown, 0 Unchecked, 4.1s Time] [2022-12-14 05:54:27,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6254 states. [2022-12-14 05:54:28,135 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6254 to 6250. [2022-12-14 05:54:28,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6250 states, 3539 states have (on average 1.248657812941509) internal successors, (4419), 3761 states have internal predecessors, (4419), 2090 states have call successors, (2090), 629 states have call predecessors, (2090), 618 states have return successors, (2113), 1967 states have call predecessors, (2113), 2081 states have call successors, (2113) [2022-12-14 05:54:28,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6250 states to 6250 states and 8622 transitions. [2022-12-14 05:54:28,177 INFO L78 Accepts]: Start accepts. Automaton has 6250 states and 8622 transitions. Word has length 77 [2022-12-14 05:54:28,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 05:54:28,178 INFO L495 AbstractCegarLoop]: Abstraction has 6250 states and 8622 transitions. [2022-12-14 05:54:28,178 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.2) internal successors, (21), 4 states have internal predecessors, (21), 2 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-12-14 05:54:28,178 INFO L276 IsEmpty]: Start isEmpty. Operand 6250 states and 8622 transitions. [2022-12-14 05:54:28,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2022-12-14 05:54:28,179 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 05:54:28,179 INFO L195 NwaCegarLoop]: trace histogram [10, 9, 9, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 05:54:28,179 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-12-14 05:54:28,180 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-12-14 05:54:28,180 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 05:54:28,180 INFO L85 PathProgramCache]: Analyzing trace with hash 1356607973, now seen corresponding path program 1 times [2022-12-14 05:54:28,180 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 05:54:28,180 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1646559453] [2022-12-14 05:54:28,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:54:28,180 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 05:54:28,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:54:28,382 INFO L134 CoverageAnalysis]: Checked inductivity of 177 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 159 trivial. 0 not checked. [2022-12-14 05:54:28,382 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 05:54:28,382 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1646559453] [2022-12-14 05:54:28,382 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1646559453] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 05:54:28,382 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 05:54:28,383 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 05:54:28,383 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [400150200] [2022-12-14 05:54:28,383 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 05:54:28,383 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 05:54:28,383 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 05:54:28,384 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 05:54:28,384 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 05:54:28,384 INFO L87 Difference]: Start difference. First operand 6250 states and 8622 transitions. Second operand has 5 states, 5 states have (on average 5.0) internal successors, (25), 4 states have internal predecessors, (25), 2 states have call successors, (18), 3 states have call predecessors, (18), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-12-14 05:54:30,733 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 05:54:32,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 05:54:32,622 INFO L93 Difference]: Finished difference Result 6268 states and 8637 transitions. [2022-12-14 05:54:32,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 05:54:32,623 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.0) internal successors, (25), 4 states have internal predecessors, (25), 2 states have call successors, (18), 3 states have call predecessors, (18), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 89 [2022-12-14 05:54:32,623 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 05:54:32,638 INFO L225 Difference]: With dead ends: 6268 [2022-12-14 05:54:32,638 INFO L226 Difference]: Without dead ends: 6266 [2022-12-14 05:54:32,640 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-12-14 05:54:32,641 INFO L413 NwaCegarLoop]: 2588 mSDtfsCounter, 1700 mSDsluCounter, 6812 mSDsCounter, 0 mSdLazyCounter, 1243 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1705 SdHoareTripleChecker+Valid, 9400 SdHoareTripleChecker+Invalid, 1245 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1243 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2022-12-14 05:54:32,641 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1705 Valid, 9400 Invalid, 1245 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1243 Invalid, 1 Unknown, 0 Unchecked, 3.9s Time] [2022-12-14 05:54:32,646 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6266 states. [2022-12-14 05:54:32,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6266 to 6262. [2022-12-14 05:54:32,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6262 states, 3548 states have (on average 1.2480270574971815) internal successors, (4428), 3770 states have internal predecessors, (4428), 2090 states have call successors, (2090), 632 states have call predecessors, (2090), 621 states have return successors, (2113), 1967 states have call predecessors, (2113), 2081 states have call successors, (2113) [2022-12-14 05:54:32,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6262 states to 6262 states and 8631 transitions. [2022-12-14 05:54:32,899 INFO L78 Accepts]: Start accepts. Automaton has 6262 states and 8631 transitions. Word has length 89 [2022-12-14 05:54:32,899 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 05:54:32,899 INFO L495 AbstractCegarLoop]: Abstraction has 6262 states and 8631 transitions. [2022-12-14 05:54:32,899 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.0) internal successors, (25), 4 states have internal predecessors, (25), 2 states have call successors, (18), 3 states have call predecessors, (18), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-12-14 05:54:32,899 INFO L276 IsEmpty]: Start isEmpty. Operand 6262 states and 8631 transitions. [2022-12-14 05:54:32,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2022-12-14 05:54:32,901 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 05:54:32,901 INFO L195 NwaCegarLoop]: trace histogram [11, 10, 10, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 05:54:32,901 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-12-14 05:54:32,901 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-12-14 05:54:32,902 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 05:54:32,902 INFO L85 PathProgramCache]: Analyzing trace with hash 632393953, now seen corresponding path program 1 times [2022-12-14 05:54:32,902 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 05:54:32,902 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [443583265] [2022-12-14 05:54:32,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:54:32,902 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 05:54:32,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:54:33,132 INFO L134 CoverageAnalysis]: Checked inductivity of 215 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 195 trivial. 0 not checked. [2022-12-14 05:54:33,133 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 05:54:33,133 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [443583265] [2022-12-14 05:54:33,133 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [443583265] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 05:54:33,133 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 05:54:33,133 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 05:54:33,133 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [854683280] [2022-12-14 05:54:33,133 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 05:54:33,134 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 05:54:33,134 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 05:54:33,134 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 05:54:33,134 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 05:54:33,134 INFO L87 Difference]: Start difference. First operand 6262 states and 8631 transitions. Second operand has 5 states, 5 states have (on average 5.0) internal successors, (25), 4 states have internal predecessors, (25), 2 states have call successors, (19), 3 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-12-14 05:54:35,511 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 05:54:37,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 05:54:37,418 INFO L93 Difference]: Finished difference Result 6280 states and 8646 transitions. [2022-12-14 05:54:37,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 05:54:37,419 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.0) internal successors, (25), 4 states have internal predecessors, (25), 2 states have call successors, (19), 3 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 94 [2022-12-14 05:54:37,419 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 05:54:37,432 INFO L225 Difference]: With dead ends: 6280 [2022-12-14 05:54:37,432 INFO L226 Difference]: Without dead ends: 6278 [2022-12-14 05:54:37,434 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-12-14 05:54:37,435 INFO L413 NwaCegarLoop]: 2588 mSDtfsCounter, 1700 mSDsluCounter, 6812 mSDsCounter, 0 mSdLazyCounter, 1243 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1704 SdHoareTripleChecker+Valid, 9400 SdHoareTripleChecker+Invalid, 1245 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1243 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2022-12-14 05:54:37,435 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1704 Valid, 9400 Invalid, 1245 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1243 Invalid, 1 Unknown, 0 Unchecked, 3.9s Time] [2022-12-14 05:54:37,439 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6278 states. [2022-12-14 05:54:37,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6278 to 6274. [2022-12-14 05:54:37,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6274 states, 3557 states have (on average 1.2473994939555806) internal successors, (4437), 3779 states have internal predecessors, (4437), 2090 states have call successors, (2090), 635 states have call predecessors, (2090), 624 states have return successors, (2113), 1967 states have call predecessors, (2113), 2081 states have call successors, (2113) [2022-12-14 05:54:37,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6274 states to 6274 states and 8640 transitions. [2022-12-14 05:54:37,694 INFO L78 Accepts]: Start accepts. Automaton has 6274 states and 8640 transitions. Word has length 94 [2022-12-14 05:54:37,695 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 05:54:37,695 INFO L495 AbstractCegarLoop]: Abstraction has 6274 states and 8640 transitions. [2022-12-14 05:54:37,695 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.0) internal successors, (25), 4 states have internal predecessors, (25), 2 states have call successors, (19), 3 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-12-14 05:54:37,695 INFO L276 IsEmpty]: Start isEmpty. Operand 6274 states and 8640 transitions. [2022-12-14 05:54:37,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2022-12-14 05:54:37,697 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 05:54:37,697 INFO L195 NwaCegarLoop]: trace histogram [12, 11, 11, 3, 3, 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] [2022-12-14 05:54:37,697 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-12-14 05:54:37,697 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)] === [2022-12-14 05:54:37,697 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 05:54:37,697 INFO L85 PathProgramCache]: Analyzing trace with hash -1656692476, now seen corresponding path program 1 times [2022-12-14 05:54:37,697 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 05:54:37,698 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1739541441] [2022-12-14 05:54:37,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:54:37,698 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 05:54:37,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:54:37,881 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 231 trivial. 0 not checked. [2022-12-14 05:54:37,882 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 05:54:37,882 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1739541441] [2022-12-14 05:54:37,882 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1739541441] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 05:54:37,882 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 05:54:37,882 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 05:54:37,882 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1842033513] [2022-12-14 05:54:37,882 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 05:54:37,883 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 05:54:37,883 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 05:54:37,883 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 05:54:37,883 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 05:54:37,884 INFO L87 Difference]: Start difference. First operand 6274 states and 8640 transitions. Second operand has 5 states, 5 states have (on average 4.2) internal successors, (21), 4 states have internal predecessors, (21), 2 states have call successors, (19), 3 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-12-14 05:54:40,304 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 05:54:42,463 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 05:54:42,463 INFO L93 Difference]: Finished difference Result 6292 states and 8655 transitions. [2022-12-14 05:54:42,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 05:54:42,464 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.2) internal successors, (21), 4 states have internal predecessors, (21), 2 states have call successors, (19), 3 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 92 [2022-12-14 05:54:42,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 05:54:42,478 INFO L225 Difference]: With dead ends: 6292 [2022-12-14 05:54:42,478 INFO L226 Difference]: Without dead ends: 6288 [2022-12-14 05:54:42,480 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-12-14 05:54:42,480 INFO L413 NwaCegarLoop]: 2588 mSDtfsCounter, 1705 mSDsluCounter, 6812 mSDsCounter, 0 mSdLazyCounter, 1243 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1708 SdHoareTripleChecker+Valid, 9400 SdHoareTripleChecker+Invalid, 1245 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1243 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2022-12-14 05:54:42,481 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1708 Valid, 9400 Invalid, 1245 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1243 Invalid, 1 Unknown, 0 Unchecked, 4.2s Time] [2022-12-14 05:54:42,485 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6288 states. [2022-12-14 05:54:42,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6288 to 6284. [2022-12-14 05:54:42,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6284 states, 3565 states have (on average 1.2465638148667602) internal successors, (4444), 3786 states have internal predecessors, (4444), 2090 states have call successors, (2090), 638 states have call predecessors, (2090), 626 states have return successors, (2113), 1967 states have call predecessors, (2113), 2081 states have call successors, (2113) [2022-12-14 05:54:42,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6284 states to 6284 states and 8647 transitions. [2022-12-14 05:54:42,760 INFO L78 Accepts]: Start accepts. Automaton has 6284 states and 8647 transitions. Word has length 92 [2022-12-14 05:54:42,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 05:54:42,761 INFO L495 AbstractCegarLoop]: Abstraction has 6284 states and 8647 transitions. [2022-12-14 05:54:42,761 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.2) internal successors, (21), 4 states have internal predecessors, (21), 2 states have call successors, (19), 3 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-12-14 05:54:42,761 INFO L276 IsEmpty]: Start isEmpty. Operand 6284 states and 8647 transitions. [2022-12-14 05:54:42,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-12-14 05:54:42,762 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 05:54:42,763 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 05:54:42,763 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-12-14 05:54:42,763 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-12-14 05:54:42,763 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 05:54:42,763 INFO L85 PathProgramCache]: Analyzing trace with hash 1120029062, now seen corresponding path program 1 times [2022-12-14 05:54:42,763 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 05:54:42,763 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1259800535] [2022-12-14 05:54:42,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:54:42,764 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 05:54:42,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:54:43,160 INFO L134 CoverageAnalysis]: Checked inductivity of 147 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 147 trivial. 0 not checked. [2022-12-14 05:54:43,161 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 05:54:43,161 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1259800535] [2022-12-14 05:54:43,161 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1259800535] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 05:54:43,161 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 05:54:43,161 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 05:54:43,161 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [437821945] [2022-12-14 05:54:43,161 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 05:54:43,162 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 05:54:43,162 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 05:54:43,162 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 05:54:43,162 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 05:54:43,163 INFO L87 Difference]: Start difference. First operand 6284 states and 8647 transitions. Second operand has 5 states, 5 states have (on average 7.4) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (18), 3 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-12-14 05:54:45,530 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 05:54:47,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 05:54:47,529 INFO L93 Difference]: Finished difference Result 6303 states and 8662 transitions. [2022-12-14 05:54:47,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-14 05:54:47,530 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.4) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (18), 3 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 109 [2022-12-14 05:54:47,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 05:54:47,542 INFO L225 Difference]: With dead ends: 6303 [2022-12-14 05:54:47,543 INFO L226 Difference]: Without dead ends: 6301 [2022-12-14 05:54:47,544 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-12-14 05:54:47,545 INFO L413 NwaCegarLoop]: 2671 mSDtfsCounter, 1386 mSDsluCounter, 7472 mSDsCounter, 0 mSdLazyCounter, 1320 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1388 SdHoareTripleChecker+Valid, 10143 SdHoareTripleChecker+Invalid, 1323 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1320 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2022-12-14 05:54:47,545 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1388 Valid, 10143 Invalid, 1323 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1320 Invalid, 1 Unknown, 0 Unchecked, 4.0s Time] [2022-12-14 05:54:47,549 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6301 states. [2022-12-14 05:54:47,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6301 to 6292. [2022-12-14 05:54:47,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6292 states, 3571 states have (on average 1.2455894707364883) internal successors, (4448), 3792 states have internal predecessors, (4448), 2090 states have call successors, (2090), 640 states have call predecessors, (2090), 628 states have return successors, (2113), 1967 states have call predecessors, (2113), 2081 states have call successors, (2113) [2022-12-14 05:54:47,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6292 states to 6292 states and 8651 transitions. [2022-12-14 05:54:47,824 INFO L78 Accepts]: Start accepts. Automaton has 6292 states and 8651 transitions. Word has length 109 [2022-12-14 05:54:47,825 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 05:54:47,825 INFO L495 AbstractCegarLoop]: Abstraction has 6292 states and 8651 transitions. [2022-12-14 05:54:47,825 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.4) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (18), 3 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-12-14 05:54:47,825 INFO L276 IsEmpty]: Start isEmpty. Operand 6292 states and 8651 transitions. [2022-12-14 05:54:47,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-12-14 05:54:47,827 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 05:54:47,827 INFO L195 NwaCegarLoop]: trace histogram [13, 12, 12, 3, 3, 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] [2022-12-14 05:54:47,827 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-12-14 05:54:47,827 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-12-14 05:54:47,827 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 05:54:47,828 INFO L85 PathProgramCache]: Analyzing trace with hash -855462750, now seen corresponding path program 1 times [2022-12-14 05:54:47,828 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 05:54:47,828 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1823628846] [2022-12-14 05:54:47,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:54:47,828 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 05:54:47,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:54:48,017 INFO L134 CoverageAnalysis]: Checked inductivity of 299 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 275 trivial. 0 not checked. [2022-12-14 05:54:48,017 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 05:54:48,017 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1823628846] [2022-12-14 05:54:48,017 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1823628846] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 05:54:48,018 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 05:54:48,018 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 05:54:48,018 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1443610903] [2022-12-14 05:54:48,018 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 05:54:48,018 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 05:54:48,018 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 05:54:48,019 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 05:54:48,019 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 05:54:48,019 INFO L87 Difference]: Start difference. First operand 6292 states and 8651 transitions. Second operand has 5 states, 5 states have (on average 4.2) internal successors, (21), 4 states have internal predecessors, (21), 2 states have call successors, (20), 3 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-12-14 05:54:50,428 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 05:54:52,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 05:54:52,288 INFO L93 Difference]: Finished difference Result 6306 states and 8662 transitions. [2022-12-14 05:54:52,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 05:54:52,289 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.2) internal successors, (21), 4 states have internal predecessors, (21), 2 states have call successors, (20), 3 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 97 [2022-12-14 05:54:52,289 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 05:54:52,302 INFO L225 Difference]: With dead ends: 6306 [2022-12-14 05:54:52,302 INFO L226 Difference]: Without dead ends: 6151 [2022-12-14 05:54:52,304 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-12-14 05:54:52,305 INFO L413 NwaCegarLoop]: 2591 mSDtfsCounter, 1705 mSDsluCounter, 6818 mSDsCounter, 0 mSdLazyCounter, 1240 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1707 SdHoareTripleChecker+Valid, 9409 SdHoareTripleChecker+Invalid, 1242 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1240 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2022-12-14 05:54:52,305 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1707 Valid, 9409 Invalid, 1242 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1240 Invalid, 1 Unknown, 0 Unchecked, 3.9s Time] [2022-12-14 05:54:52,308 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6151 states. [2022-12-14 05:54:52,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6151 to 6147. [2022-12-14 05:54:52,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6147 states, 3487 states have (on average 1.2506452537998278) internal successors, (4361), 3706 states have internal predecessors, (4361), 2057 states have call successors, (2057), 611 states have call predecessors, (2057), 600 states have return successors, (2083), 1937 states have call predecessors, (2083), 2051 states have call successors, (2083) [2022-12-14 05:54:52,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6147 states to 6147 states and 8501 transitions. [2022-12-14 05:54:52,591 INFO L78 Accepts]: Start accepts. Automaton has 6147 states and 8501 transitions. Word has length 97 [2022-12-14 05:54:52,591 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 05:54:52,591 INFO L495 AbstractCegarLoop]: Abstraction has 6147 states and 8501 transitions. [2022-12-14 05:54:52,591 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.2) internal successors, (21), 4 states have internal predecessors, (21), 2 states have call successors, (20), 3 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-12-14 05:54:52,591 INFO L276 IsEmpty]: Start isEmpty. Operand 6147 states and 8501 transitions. [2022-12-14 05:54:52,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2022-12-14 05:54:52,594 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 05:54:52,594 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2022-12-14 05:54:52,594 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-12-14 05:54:52,594 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-12-14 05:54:52,594 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 05:54:52,594 INFO L85 PathProgramCache]: Analyzing trace with hash 996172475, now seen corresponding path program 1 times [2022-12-14 05:54:52,594 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 05:54:52,594 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [563883973] [2022-12-14 05:54:52,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:54:52,595 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 05:54:52,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:54:52,990 INFO L134 CoverageAnalysis]: Checked inductivity of 176 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 176 trivial. 0 not checked. [2022-12-14 05:54:52,990 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 05:54:52,990 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [563883973] [2022-12-14 05:54:52,990 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [563883973] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 05:54:52,991 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 05:54:52,991 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 05:54:52,991 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1413315756] [2022-12-14 05:54:52,991 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 05:54:52,992 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 05:54:52,992 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 05:54:52,992 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 05:54:52,992 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 05:54:52,993 INFO L87 Difference]: Start difference. First operand 6147 states and 8501 transitions. Second operand has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (27), 3 states have call predecessors, (27), 2 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2022-12-14 05:54:55,422 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 05:54:57,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 05:54:57,278 INFO L93 Difference]: Finished difference Result 6457 states and 8839 transitions. [2022-12-14 05:54:57,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 05:54:57,279 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (27), 3 states have call predecessors, (27), 2 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 146 [2022-12-14 05:54:57,280 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 05:54:57,296 INFO L225 Difference]: With dead ends: 6457 [2022-12-14 05:54:57,296 INFO L226 Difference]: Without dead ends: 6343 [2022-12-14 05:54:57,298 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-12-14 05:54:57,299 INFO L413 NwaCegarLoop]: 2416 mSDtfsCounter, 1330 mSDsluCounter, 6095 mSDsCounter, 0 mSdLazyCounter, 1313 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1331 SdHoareTripleChecker+Valid, 8511 SdHoareTripleChecker+Invalid, 1315 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1313 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2022-12-14 05:54:57,299 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1331 Valid, 8511 Invalid, 1315 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1313 Invalid, 1 Unknown, 0 Unchecked, 3.9s Time] [2022-12-14 05:54:57,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6343 states. [2022-12-14 05:54:57,552 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6343 to 6343. [2022-12-14 05:54:57,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6343 states, 3576 states have (on average 1.241890380313199) internal successors, (4441), 3796 states have internal predecessors, (4441), 2092 states have call successors, (2092), 683 states have call predecessors, (2092), 672 states have return successors, (2118), 1970 states have call predecessors, (2118), 2086 states have call successors, (2118) [2022-12-14 05:54:57,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6343 states to 6343 states and 8651 transitions. [2022-12-14 05:54:57,589 INFO L78 Accepts]: Start accepts. Automaton has 6343 states and 8651 transitions. Word has length 146 [2022-12-14 05:54:57,589 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 05:54:57,589 INFO L495 AbstractCegarLoop]: Abstraction has 6343 states and 8651 transitions. [2022-12-14 05:54:57,589 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (27), 3 states have call predecessors, (27), 2 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2022-12-14 05:54:57,589 INFO L276 IsEmpty]: Start isEmpty. Operand 6343 states and 8651 transitions. [2022-12-14 05:54:57,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 315 [2022-12-14 05:54:57,594 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 05:54:57,595 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 8, 7, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 05:54:57,595 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-12-14 05:54:57,595 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)] === [2022-12-14 05:54:57,595 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 05:54:57,595 INFO L85 PathProgramCache]: Analyzing trace with hash -1426701772, now seen corresponding path program 1 times [2022-12-14 05:54:57,595 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 05:54:57,595 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [435938658] [2022-12-14 05:54:57,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:54:57,596 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 05:54:57,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:54:58,565 INFO L134 CoverageAnalysis]: Checked inductivity of 301 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 299 trivial. 0 not checked. [2022-12-14 05:54:58,565 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 05:54:58,565 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [435938658] [2022-12-14 05:54:58,565 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [435938658] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 05:54:58,565 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1988941417] [2022-12-14 05:54:58,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:54:58,566 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 05:54:58,566 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6d61deb-1de3-4563-91ea-1219f0f7c25e/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 05:54:58,567 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6d61deb-1de3-4563-91ea-1219f0f7c25e/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 05:54:58,571 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6d61deb-1de3-4563-91ea-1219f0f7c25e/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-14 05:54:59,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:54:59,640 INFO L263 TraceCheckSpWp]: Trace formula consists of 4667 conjuncts, 2 conjunts are in the unsatisfiable core [2022-12-14 05:54:59,662 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 05:54:59,715 INFO L134 CoverageAnalysis]: Checked inductivity of 301 backedges. 86 proven. 0 refuted. 0 times theorem prover too weak. 215 trivial. 0 not checked. [2022-12-14 05:54:59,715 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 05:54:59,715 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1988941417] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 05:54:59,715 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-14 05:54:59,716 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 8 [2022-12-14 05:54:59,716 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2008970503] [2022-12-14 05:54:59,716 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 05:54:59,717 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 05:54:59,717 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 05:54:59,718 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 05:54:59,718 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-12-14 05:54:59,718 INFO L87 Difference]: Start difference. First operand 6343 states and 8651 transitions. Second operand has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 3 states have internal predecessors, (121), 2 states have call successors, (53), 2 states have call predecessors, (53), 2 states have return successors, (49), 2 states have call predecessors, (49), 2 states have call successors, (49) [2022-12-14 05:55:02,152 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 05:55:03,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 05:55:03,315 INFO L93 Difference]: Finished difference Result 12696 states and 17344 transitions. [2022-12-14 05:55:03,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 05:55:03,316 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 3 states have internal predecessors, (121), 2 states have call successors, (53), 2 states have call predecessors, (53), 2 states have return successors, (49), 2 states have call predecessors, (49), 2 states have call successors, (49) Word has length 314 [2022-12-14 05:55:03,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 05:55:03,335 INFO L225 Difference]: With dead ends: 12696 [2022-12-14 05:55:03,336 INFO L226 Difference]: Without dead ends: 6369 [2022-12-14 05:55:03,357 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 321 GetRequests, 315 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-12-14 05:55:03,357 INFO L413 NwaCegarLoop]: 2246 mSDtfsCounter, 7 mSDsluCounter, 2231 mSDsCounter, 0 mSdLazyCounter, 663 mSolverCounterSat, 6 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 4477 SdHoareTripleChecker+Invalid, 670 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 663 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2022-12-14 05:55:03,357 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 4477 Invalid, 670 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 663 Invalid, 1 Unknown, 0 Unchecked, 3.2s Time] [2022-12-14 05:55:03,362 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6369 states. [2022-12-14 05:55:03,626 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6369 to 6351. [2022-12-14 05:55:03,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6351 states, 3584 states have (on average 1.2413504464285714) internal successors, (4449), 3804 states have internal predecessors, (4449), 2092 states have call successors, (2092), 683 states have call predecessors, (2092), 672 states have return successors, (2118), 1970 states have call predecessors, (2118), 2086 states have call successors, (2118) [2022-12-14 05:55:03,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6351 states to 6351 states and 8659 transitions. [2022-12-14 05:55:03,651 INFO L78 Accepts]: Start accepts. Automaton has 6351 states and 8659 transitions. Word has length 314 [2022-12-14 05:55:03,652 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 05:55:03,652 INFO L495 AbstractCegarLoop]: Abstraction has 6351 states and 8659 transitions. [2022-12-14 05:55:03,652 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 3 states have internal predecessors, (121), 2 states have call successors, (53), 2 states have call predecessors, (53), 2 states have return successors, (49), 2 states have call predecessors, (49), 2 states have call successors, (49) [2022-12-14 05:55:03,652 INFO L276 IsEmpty]: Start isEmpty. Operand 6351 states and 8659 transitions. [2022-12-14 05:55:03,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 293 [2022-12-14 05:55:03,657 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 05:55:03,657 INFO L195 NwaCegarLoop]: trace histogram [9, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 05:55:03,673 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6d61deb-1de3-4563-91ea-1219f0f7c25e/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-14 05:55:03,857 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6d61deb-1de3-4563-91ea-1219f0f7c25e/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2022-12-14 05:55:03,858 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-12-14 05:55:03,859 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 05:55:03,859 INFO L85 PathProgramCache]: Analyzing trace with hash 1629070536, now seen corresponding path program 1 times [2022-12-14 05:55:03,859 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 05:55:03,859 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [782214225] [2022-12-14 05:55:03,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:55:03,860 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 05:55:03,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:55:04,181 INFO L134 CoverageAnalysis]: Checked inductivity of 207 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 207 trivial. 0 not checked. [2022-12-14 05:55:04,181 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 05:55:04,181 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [782214225] [2022-12-14 05:55:04,181 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [782214225] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 05:55:04,181 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 05:55:04,181 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 05:55:04,181 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1628266747] [2022-12-14 05:55:04,182 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 05:55:04,182 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 05:55:04,182 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 05:55:04,183 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 05:55:04,183 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 05:55:04,183 INFO L87 Difference]: Start difference. First operand 6351 states and 8659 transitions. Second operand has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 3 states have internal predecessors, (118), 3 states have call successors, (50), 2 states have call predecessors, (50), 1 states have return successors, (46), 3 states have call predecessors, (46), 3 states have call successors, (46) [2022-12-14 05:55:06,530 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 05:55:07,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 05:55:07,755 INFO L93 Difference]: Finished difference Result 10761 states and 14616 transitions. [2022-12-14 05:55:07,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 05:55:07,756 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 3 states have internal predecessors, (118), 3 states have call successors, (50), 2 states have call predecessors, (50), 1 states have return successors, (46), 3 states have call predecessors, (46), 3 states have call successors, (46) Word has length 292 [2022-12-14 05:55:07,756 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 05:55:07,776 INFO L225 Difference]: With dead ends: 10761 [2022-12-14 05:55:07,777 INFO L226 Difference]: Without dead ends: 6297 [2022-12-14 05:55:07,791 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 05:55:07,791 INFO L413 NwaCegarLoop]: 2501 mSDtfsCounter, 1683 mSDsluCounter, 1656 mSDsCounter, 0 mSdLazyCounter, 557 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1684 SdHoareTripleChecker+Valid, 4157 SdHoareTripleChecker+Invalid, 558 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 557 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2022-12-14 05:55:07,791 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1684 Valid, 4157 Invalid, 558 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 557 Invalid, 1 Unknown, 0 Unchecked, 3.2s Time] [2022-12-14 05:55:07,796 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6297 states. [2022-12-14 05:55:08,133 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6297 to 6295. [2022-12-14 05:55:08,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6295 states, 3549 states have (on average 1.2395040856579318) internal successors, (4399), 3763 states have internal predecessors, (4399), 2071 states have call successors, (2071), 683 states have call predecessors, (2071), 672 states have return successors, (2088), 1952 states have call predecessors, (2088), 2065 states have call successors, (2088) [2022-12-14 05:55:08,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6295 states to 6295 states and 8558 transitions. [2022-12-14 05:55:08,156 INFO L78 Accepts]: Start accepts. Automaton has 6295 states and 8558 transitions. Word has length 292 [2022-12-14 05:55:08,156 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 05:55:08,156 INFO L495 AbstractCegarLoop]: Abstraction has 6295 states and 8558 transitions. [2022-12-14 05:55:08,156 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 3 states have internal predecessors, (118), 3 states have call successors, (50), 2 states have call predecessors, (50), 1 states have return successors, (46), 3 states have call predecessors, (46), 3 states have call successors, (46) [2022-12-14 05:55:08,156 INFO L276 IsEmpty]: Start isEmpty. Operand 6295 states and 8558 transitions. [2022-12-14 05:55:08,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 339 [2022-12-14 05:55:08,161 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 05:55:08,161 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 7, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 05:55:08,161 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-12-14 05:55:08,161 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-12-14 05:55:08,161 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 05:55:08,162 INFO L85 PathProgramCache]: Analyzing trace with hash 591024870, now seen corresponding path program 1 times [2022-12-14 05:55:08,162 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 05:55:08,162 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2134508003] [2022-12-14 05:55:08,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:55:08,162 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 05:55:08,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:55:09,003 INFO L134 CoverageAnalysis]: Checked inductivity of 339 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 331 trivial. 0 not checked. [2022-12-14 05:55:09,004 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 05:55:09,004 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2134508003] [2022-12-14 05:55:09,004 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2134508003] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 05:55:09,004 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [697770378] [2022-12-14 05:55:09,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:55:09,004 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 05:55:09,004 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6d61deb-1de3-4563-91ea-1219f0f7c25e/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 05:55:09,005 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6d61deb-1de3-4563-91ea-1219f0f7c25e/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 05:55:09,006 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6d61deb-1de3-4563-91ea-1219f0f7c25e/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-14 05:55:09,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:55:09,902 INFO L263 TraceCheckSpWp]: Trace formula consists of 4805 conjuncts, 6 conjunts are in the unsatisfiable core [2022-12-14 05:55:09,911 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 05:55:09,988 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-12-14 05:55:10,026 INFO L134 CoverageAnalysis]: Checked inductivity of 339 backedges. 119 proven. 2 refuted. 0 times theorem prover too weak. 218 trivial. 0 not checked. [2022-12-14 05:55:10,026 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 05:55:10,281 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [697770378] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 05:55:10,281 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2061044828] [2022-12-14 05:55:10,304 INFO L159 IcfgInterpreter]: Started Sifa with 199 locations of interest [2022-12-14 05:55:10,304 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 05:55:10,307 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 05:55:10,312 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 05:55:10,313 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 05:55:32,820 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-12-14 05:55:32,824 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2022-12-14 05:55:33,606 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-12-14 05:55:33,667 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:55:33,668 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 17 [2022-12-14 05:55:33,715 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:55:33,716 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 14 [2022-12-14 05:55:33,755 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-14 05:55:33,790 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-14 05:55:39,423 INFO L197 IcfgInterpreter]: Interpreting procedure ldv_xmalloc with input of size 193 for LOIs [2022-12-14 05:55:39,485 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-12-14 05:55:39,503 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-12-14 05:55:39,607 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-12-14 05:55:39,624 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-12-14 05:55:39,942 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-12-14 05:55:39,970 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-12-14 05:55:40,039 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-12-14 05:55:40,053 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-12-14 05:55:40,295 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-12-14 05:55:40,307 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-12-14 05:55:40,391 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-12-14 05:55:40,409 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-12-14 05:55:40,649 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-12-14 05:55:40,663 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-12-14 05:55:40,786 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-12-14 05:55:40,811 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-12-14 05:55:40,863 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-12-14 05:55:40,875 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-12-14 05:55:40,970 INFO L197 IcfgInterpreter]: Interpreting procedure ldv_is_err with input of size 205 for LOIs [2022-12-14 05:55:40,996 INFO L197 IcfgInterpreter]: Interpreting procedure ldv_assume with input of size 184 for LOIs [2022-12-14 05:55:41,027 INFO L197 IcfgInterpreter]: Interpreting procedure ldv_undef_int with input of size 2440 for LOIs [2022-12-14 05:55:46,290 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 05:56:51,673 WARN L233 SmtUtils]: Spent 1.08m on a formula simplification. DAG size of input: 2562 DAG size of output: 2542 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 05:57:47,621 WARN L233 SmtUtils]: Spent 55.37s on a formula simplification. DAG size of input: 2440 DAG size of output: 2418 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 05:58:47,765 WARN L233 SmtUtils]: Spent 59.53s on a formula simplification. DAG size of input: 2447 DAG size of output: 2426 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 05:59:07,673 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [2061044828] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 05:59:07,673 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-12-14 05:59:07,673 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [7, 7] total 34 [2022-12-14 05:59:07,674 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2117152445] [2022-12-14 05:59:07,674 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 05:59:07,674 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-12-14 05:59:07,674 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 05:59:07,675 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-12-14 05:59:07,675 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=140, Invalid=1266, Unknown=0, NotChecked=0, Total=1406 [2022-12-14 05:59:07,675 INFO L87 Difference]: Start difference. First operand 6295 states and 8558 transitions. Second operand has 24 states, 14 states have (on average 8.785714285714286) internal successors, (123), 13 states have internal predecessors, (123), 7 states have call successors, (55), 5 states have call predecessors, (55), 5 states have return successors, (51), 7 states have call predecessors, (51), 7 states have call successors, (51) [2022-12-14 06:00:15,318 WARN L233 SmtUtils]: Spent 1.11m on a formula simplification. DAG size of input: 2622 DAG size of output: 2555 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 06:01:26,110 WARN L233 SmtUtils]: Spent 1.17m on a formula simplification. DAG size of input: 2622 DAG size of output: 2555 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 06:02:35,661 WARN L233 SmtUtils]: Spent 1.15m on a formula simplification. DAG size of input: 2624 DAG size of output: 2557 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 06:03:29,869 WARN L233 SmtUtils]: Spent 53.48s on a formula simplification. DAG size of input: 2429 DAG size of output: 2421 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 06:04:28,389 WARN L233 SmtUtils]: Spent 57.85s on a formula simplification. DAG size of input: 2431 DAG size of output: 2423 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 06:05:40,230 WARN L233 SmtUtils]: Spent 1.18m on a formula simplification. DAG size of input: 2625 DAG size of output: 2558 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 06:06:47,193 WARN L233 SmtUtils]: Spent 1.10m on a formula simplification. DAG size of input: 2637 DAG size of output: 2570 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)