./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wan-lmc-lmc.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_d1fd9ee9-7882-4f00-b926-c177a5512ced/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1fd9ee9-7882-4f00-b926-c177a5512ced/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_d1fd9ee9-7882-4f00-b926-c177a5512ced/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1fd9ee9-7882-4f00-b926-c177a5512ced/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wan-lmc-lmc.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1fd9ee9-7882-4f00-b926-c177a5512ced/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_d1fd9ee9-7882-4f00-b926-c177a5512ced/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 fdbc5180119fad988a6a3a24d2f5ed804cbc2cd6d0e7bbb402b6d4dd37802e45 --- 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 10:41:33,858 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 10:41:33,860 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 10:41:33,878 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 10:41:33,879 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 10:41:33,880 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 10:41:33,881 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 10:41:33,882 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 10:41:33,884 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 10:41:33,885 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 10:41:33,885 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 10:41:33,886 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 10:41:33,887 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 10:41:33,888 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 10:41:33,889 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 10:41:33,890 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 10:41:33,890 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 10:41:33,891 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 10:41:33,893 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 10:41:33,894 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 10:41:33,895 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 10:41:33,897 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 10:41:33,898 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 10:41:33,898 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 10:41:33,901 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 10:41:33,902 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 10:41:33,902 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 10:41:33,903 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 10:41:33,903 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 10:41:33,904 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 10:41:33,904 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 10:41:33,905 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 10:41:33,906 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 10:41:33,906 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 10:41:33,907 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 10:41:33,907 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 10:41:33,908 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 10:41:33,908 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 10:41:33,908 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 10:41:33,909 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 10:41:33,909 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 10:41:33,910 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1fd9ee9-7882-4f00-b926-c177a5512ced/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-12-14 10:41:33,929 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 10:41:33,929 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 10:41:33,929 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 10:41:33,930 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 10:41:33,930 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 10:41:33,931 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 10:41:33,931 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 10:41:33,931 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 10:41:33,931 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 10:41:33,931 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 10:41:33,932 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 10:41:33,932 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 10:41:33,932 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 10:41:33,932 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 10:41:33,932 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 10:41:33,933 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 10:41:33,933 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 10:41:33,933 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 10:41:33,934 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 10:41:33,934 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 10:41:33,934 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 10:41:33,934 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 10:41:33,934 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 10:41:33,935 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 10:41:33,935 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 10:41:33,935 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 10:41:33,935 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 10:41:33,935 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 10:41:33,936 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 10:41:33,936 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 10:41:33,936 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 10:41:33,936 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 10:41:33,936 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 10:41:33,937 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 10:41:33,937 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 10:41:33,937 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 10:41:33,937 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 10:41:33,937 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 10:41:33,937 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_d1fd9ee9-7882-4f00-b926-c177a5512ced/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1fd9ee9-7882-4f00-b926-c177a5512ced/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fdbc5180119fad988a6a3a24d2f5ed804cbc2cd6d0e7bbb402b6d4dd37802e45 [2022-12-14 10:41:34,143 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 10:41:34,159 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 10:41:34,160 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 10:41:34,161 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 10:41:34,161 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 10:41:34,162 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1fd9ee9-7882-4f00-b926-c177a5512ced/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wan-lmc-lmc.cil.i [2022-12-14 10:41:36,643 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 10:41:37,089 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 10:41:37,089 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1fd9ee9-7882-4f00-b926-c177a5512ced/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wan-lmc-lmc.cil.i [2022-12-14 10:41:37,120 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1fd9ee9-7882-4f00-b926-c177a5512ced/bin/utaipan-gh47qXpMRh/data/a647ecc84/576e181b2a0543c39d33c26c21ee718a/FLAG287aa6d60 [2022-12-14 10:41:37,225 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1fd9ee9-7882-4f00-b926-c177a5512ced/bin/utaipan-gh47qXpMRh/data/a647ecc84/576e181b2a0543c39d33c26c21ee718a [2022-12-14 10:41:37,227 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 10:41:37,228 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 10:41:37,229 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 10:41:37,229 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 10:41:37,232 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 10:41:37,232 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 10:41:37" (1/1) ... [2022-12-14 10:41:37,233 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@67706f69 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:41:37, skipping insertion in model container [2022-12-14 10:41:37,233 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 10:41:37" (1/1) ... [2022-12-14 10:41:37,238 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 10:41:37,381 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 10:41:38,018 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:41:38,022 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:41:38,047 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:41:38,051 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:41:38,051 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:41:38,054 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:41:38,068 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:41:38,069 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:41:38,076 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:41:38,077 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:41:38,079 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:41:38,080 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:41:38,082 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:41:38,082 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:41:38,110 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:41:38,111 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:41:38,112 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:41:38,113 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:41:38,114 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:41:38,115 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:41:38,116 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:41:38,117 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:41:38,120 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:41:38,121 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:41:38,124 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:41:38,124 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:41:38,480 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock [2022-12-14 10:41:38,486 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_unlock [2022-12-14 10:41:38,492 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_unlock_irqrestore [2022-12-14 10:41:38,511 WARN L623 FunctionHandler]: Unknown extern function __phys_addr [2022-12-14 10:41:38,529 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 10:41:38,549 WARN L623 FunctionHandler]: Unknown extern function might_fault [2022-12-14 10:41:38,550 WARN L623 FunctionHandler]: Unknown extern function _copy_from_user [2022-12-14 10:41:38,550 WARN L623 FunctionHandler]: Unknown extern function _copy_from_user [2022-12-14 10:41:38,550 WARN L623 FunctionHandler]: Unknown extern function __copy_from_user_overflow [2022-12-14 10:41:38,554 WARN L623 FunctionHandler]: Unknown extern function might_fault [2022-12-14 10:41:38,554 WARN L623 FunctionHandler]: Unknown extern function _copy_to_user [2022-12-14 10:41:38,555 WARN L623 FunctionHandler]: Unknown extern function _copy_to_user [2022-12-14 10:41:38,555 WARN L623 FunctionHandler]: Unknown extern function __copy_to_user_overflow [2022-12-14 10:41:38,586 WARN L623 FunctionHandler]: Unknown extern function __netdev_alloc_skb [2022-12-14 10:41:38,631 WARN L623 FunctionHandler]: Unknown extern function netpoll_trap [2022-12-14 10:41:38,632 WARN L623 FunctionHandler]: Unknown extern function __netif_schedule [2022-12-14 10:41:38,640 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-12-14 10:41:38,640 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:41:38,652 WARN L623 FunctionHandler]: Unknown extern function __dev_kfree_skb_irq [2022-12-14 10:41:38,714 WARN L623 FunctionHandler]: Unknown extern function request_threaded_irq [2022-12-14 10:41:38,810 WARN L623 FunctionHandler]: Unknown extern function capable [2022-12-14 10:41:38,812 WARN L623 FunctionHandler]: Unknown extern function capable [2022-12-14 10:41:38,817 WARN L623 FunctionHandler]: Unknown extern function capable [2022-12-14 10:41:38,818 WARN L623 FunctionHandler]: Unknown extern function capable [2022-12-14 10:41:38,819 WARN L623 FunctionHandler]: Unknown extern function capable [2022-12-14 10:41:38,819 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:41:38,820 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:41:38,820 WARN L623 FunctionHandler]: Unknown extern function capable [2022-12-14 10:41:38,822 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 10:41:38,822 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 10:41:38,823 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 10:41:38,823 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 10:41:38,824 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 10:41:38,825 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 10:41:38,826 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 10:41:38,826 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:41:38,827 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 10:41:38,828 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:41:38,829 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:41:38,830 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 10:41:38,830 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 10:41:38,831 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:41:38,831 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:41:38,831 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:41:38,832 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 10:41:38,836 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:41:38,839 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:41:38,839 WARN L623 FunctionHandler]: Unknown extern function netif_carrier_off [2022-12-14 10:41:38,839 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:41:38,840 WARN L623 FunctionHandler]: Unknown extern function netif_carrier_on [2022-12-14 10:41:38,850 WARN L623 FunctionHandler]: Unknown extern function add_timer [2022-12-14 10:41:38,859 WARN L623 FunctionHandler]: Unknown extern function pci_enable_device [2022-12-14 10:41:38,859 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:41:38,860 WARN L623 FunctionHandler]: Unknown extern function pci_request_regions [2022-12-14 10:41:38,861 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:41:38,862 WARN L623 FunctionHandler]: Unknown extern function alloc_hdlcdev [2022-12-14 10:41:38,862 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:41:38,863 WARN L623 FunctionHandler]: Unknown extern function __raw_spin_lock_init [2022-12-14 10:41:38,864 WARN L623 FunctionHandler]: Unknown extern function pci_set_master [2022-12-14 10:41:38,864 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:41:38,864 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:41:38,865 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:41:38,865 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:41:38,866 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:41:38,866 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:41:38,866 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:41:38,868 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:41:38,869 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 10:41:38,869 WARN L623 FunctionHandler]: Unknown extern function pci_release_regions [2022-12-14 10:41:38,869 WARN L623 FunctionHandler]: Unknown extern function pci_disable_device [2022-12-14 10:41:38,873 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:41:38,874 WARN L623 FunctionHandler]: Unknown extern function pci_release_regions [2022-12-14 10:41:38,874 WARN L623 FunctionHandler]: Unknown extern function pci_disable_device [2022-12-14 10:41:38,875 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:41:38,877 WARN L623 FunctionHandler]: Unknown extern function init_timer_key [2022-12-14 10:41:38,878 WARN L623 FunctionHandler]: Unknown extern function add_timer [2022-12-14 10:41:38,883 WARN L623 FunctionHandler]: Unknown extern function consume_skb [2022-12-14 10:41:38,883 WARN L623 FunctionHandler]: Unknown extern function consume_skb [2022-12-14 10:41:38,887 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:41:38,888 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:41:38,888 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:41:38,889 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:41:38,889 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:41:38,889 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:41:38,895 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:41:38,897 WARN L623 FunctionHandler]: Unknown extern function skb_put [2022-12-14 10:41:38,898 WARN L623 FunctionHandler]: Unknown extern function skb_put [2022-12-14 10:41:38,914 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:41:38,916 WARN L623 FunctionHandler]: Unknown extern function consume_skb [2022-12-14 10:41:38,921 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 10:41:38,922 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 10:41:38,925 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:41:38,925 WARN L623 FunctionHandler]: Unknown extern function dev_trans_start [2022-12-14 10:41:39,157 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 10:41:39,158 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 10:41:39,158 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 10:41:39,158 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 10:41:39,158 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 10:41:39,159 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 10:41:39,159 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 10:41:39,159 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 10:41:39,159 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 10:41:39,159 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 10:41:39,159 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 10:41:39,160 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 10:41:39,160 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 10:41:39,160 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 10:41:39,160 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 10:41:39,161 WARN L623 FunctionHandler]: Unknown extern function hdlc_start_xmit [2022-12-14 10:41:39,162 WARN L623 FunctionHandler]: Unknown extern function hdlc_change_mtu [2022-12-14 10:41:39,165 WARN L623 FunctionHandler]: Unknown extern function ldv_initialize [2022-12-14 10:41:39,167 WARN L623 FunctionHandler]: Unknown extern function ldv_switch_to_interrupt_context [2022-12-14 10:41:39,167 WARN L623 FunctionHandler]: Unknown extern function ldv_switch_to_process_context [2022-12-14 10:41:39,172 WARN L623 FunctionHandler]: Unknown extern function ldv_pre_probe [2022-12-14 10:41:39,174 WARN L623 FunctionHandler]: Unknown extern function ldv_pre_register_netdev [2022-12-14 10:41:39,183 WARN L623 FunctionHandler]: Unknown extern function ldv_switch_to_interrupt_context [2022-12-14 10:41:39,183 WARN L623 FunctionHandler]: Unknown extern function ldv_switch_to_process_context [2022-12-14 10:41:39,184 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-12-14 10:41:39,185 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-12-14 10:41:39,185 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-12-14 10:41:39,185 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-12-14 10:41:39,185 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-12-14 10:41:39,185 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-12-14 10:41:39,186 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-12-14 10:41:39,186 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-12-14 10:41:39,186 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-12-14 10:41:39,186 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-12-14 10:41:39,187 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-12-14 10:41:39,187 WARN L623 FunctionHandler]: Unknown extern function register_netdev [2022-12-14 10:41:39,187 WARN L623 FunctionHandler]: Unknown extern function free_netdev [2022-12-14 10:41:39,188 WARN L623 FunctionHandler]: Unknown extern function unregister_hdlc_device [2022-12-14 10:41:39,188 WARN L623 FunctionHandler]: Unknown extern function free_netdev [2022-12-14 10:41:39,189 WARN L623 FunctionHandler]: Unknown extern function del_timer [2022-12-14 10:41:39,189 WARN L623 FunctionHandler]: Unknown extern function free_irq [2022-12-14 10:41:39,189 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-12-14 10:41:39,190 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-12-14 10:41:39,190 WARN L623 FunctionHandler]: Unknown extern function __pci_register_driver [2022-12-14 10:41:39,190 WARN L623 FunctionHandler]: Unknown extern function pci_unregister_driver [2022-12-14 10:41:39,191 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-12-14 10:41:39,209 WARN L623 FunctionHandler]: Unknown extern function hdlc_ioctl [2022-12-14 10:41:39,210 WARN L623 FunctionHandler]: Unknown extern function hdlc_open [2022-12-14 10:41:39,210 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:41:39,211 WARN L623 FunctionHandler]: Unknown extern function hdlc_close [2022-12-14 10:41:39,211 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:41:39,212 WARN L623 FunctionHandler]: Unknown extern function netif_rx [2022-12-14 10:41:39,249 WARN L623 FunctionHandler]: Unknown extern function ldv_check_alloc_flags [2022-12-14 10:41:39,250 WARN L623 FunctionHandler]: Unknown extern function ldv_after_alloc [2022-12-14 10:41:39,257 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 10:41:39,693 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_d1fd9ee9-7882-4f00-b926-c177a5512ced/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wan-lmc-lmc.cil.i[394320,394333] [2022-12-14 10:41:39,696 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_d1fd9ee9-7882-4f00-b926-c177a5512ced/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wan-lmc-lmc.cil.i[394489,394502] [2022-12-14 10:41:39,697 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_d1fd9ee9-7882-4f00-b926-c177a5512ced/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wan-lmc-lmc.cil.i[394656,394669] [2022-12-14 10:41:39,697 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_d1fd9ee9-7882-4f00-b926-c177a5512ced/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wan-lmc-lmc.cil.i[394824,394837] [2022-12-14 10:41:39,698 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 10:41:39,698 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 10:41:39,699 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 10:41:39,713 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 10:41:39,739 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 10:41:39,818 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:41:39,819 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:41:39,823 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:41:39,824 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:41:39,825 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:41:39,825 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:41:39,828 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:41:39,829 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:41:39,831 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:41:39,831 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:41:39,832 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:41:39,832 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:41:39,833 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:41:39,833 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:41:39,842 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:41:39,842 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:41:39,843 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:41:39,843 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:41:39,844 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:41:39,844 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:41:39,844 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:41:39,845 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:41:39,858 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:41:39,858 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:41:39,859 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:41:39,860 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:41:40,148 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock [2022-12-14 10:41:40,149 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_unlock [2022-12-14 10:41:40,149 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_unlock_irqrestore [2022-12-14 10:41:40,150 WARN L623 FunctionHandler]: Unknown extern function __phys_addr [2022-12-14 10:41:40,150 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 10:41:40,151 WARN L623 FunctionHandler]: Unknown extern function might_fault [2022-12-14 10:41:40,151 WARN L623 FunctionHandler]: Unknown extern function _copy_from_user [2022-12-14 10:41:40,152 WARN L623 FunctionHandler]: Unknown extern function _copy_from_user [2022-12-14 10:41:40,152 WARN L623 FunctionHandler]: Unknown extern function __copy_from_user_overflow [2022-12-14 10:41:40,152 WARN L623 FunctionHandler]: Unknown extern function might_fault [2022-12-14 10:41:40,152 WARN L623 FunctionHandler]: Unknown extern function _copy_to_user [2022-12-14 10:41:40,153 WARN L623 FunctionHandler]: Unknown extern function _copy_to_user [2022-12-14 10:41:40,153 WARN L623 FunctionHandler]: Unknown extern function __copy_to_user_overflow [2022-12-14 10:41:40,154 WARN L623 FunctionHandler]: Unknown extern function __netdev_alloc_skb [2022-12-14 10:41:40,156 WARN L623 FunctionHandler]: Unknown extern function netpoll_trap [2022-12-14 10:41:40,156 WARN L623 FunctionHandler]: Unknown extern function __netif_schedule [2022-12-14 10:41:40,157 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-12-14 10:41:40,157 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:41:40,157 WARN L623 FunctionHandler]: Unknown extern function __dev_kfree_skb_irq [2022-12-14 10:41:40,158 WARN L623 FunctionHandler]: Unknown extern function request_threaded_irq [2022-12-14 10:41:40,162 WARN L623 FunctionHandler]: Unknown extern function capable [2022-12-14 10:41:40,163 WARN L623 FunctionHandler]: Unknown extern function capable [2022-12-14 10:41:40,167 WARN L623 FunctionHandler]: Unknown extern function capable [2022-12-14 10:41:40,168 WARN L623 FunctionHandler]: Unknown extern function capable [2022-12-14 10:41:40,169 WARN L623 FunctionHandler]: Unknown extern function capable [2022-12-14 10:41:40,169 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:41:40,169 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:41:40,170 WARN L623 FunctionHandler]: Unknown extern function capable [2022-12-14 10:41:40,171 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 10:41:40,171 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 10:41:40,172 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 10:41:40,172 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 10:41:40,172 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 10:41:40,173 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 10:41:40,175 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 10:41:40,175 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:41:40,176 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 10:41:40,177 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:41:40,178 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:41:40,178 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 10:41:40,179 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 10:41:40,179 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:41:40,179 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:41:40,180 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:41:40,180 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 10:41:40,182 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:41:40,184 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:41:40,184 WARN L623 FunctionHandler]: Unknown extern function netif_carrier_off [2022-12-14 10:41:40,184 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:41:40,185 WARN L623 FunctionHandler]: Unknown extern function netif_carrier_on [2022-12-14 10:41:40,185 WARN L623 FunctionHandler]: Unknown extern function add_timer [2022-12-14 10:41:40,187 WARN L623 FunctionHandler]: Unknown extern function pci_enable_device [2022-12-14 10:41:40,187 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:41:40,187 WARN L623 FunctionHandler]: Unknown extern function pci_request_regions [2022-12-14 10:41:40,188 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:41:40,188 WARN L623 FunctionHandler]: Unknown extern function alloc_hdlcdev [2022-12-14 10:41:40,189 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:41:40,191 WARN L623 FunctionHandler]: Unknown extern function __raw_spin_lock_init [2022-12-14 10:41:40,192 WARN L623 FunctionHandler]: Unknown extern function pci_set_master [2022-12-14 10:41:40,192 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:41:40,192 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:41:40,193 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:41:40,193 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:41:40,193 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:41:40,193 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:41:40,194 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:41:40,195 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:41:40,196 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 10:41:40,197 WARN L623 FunctionHandler]: Unknown extern function pci_release_regions [2022-12-14 10:41:40,197 WARN L623 FunctionHandler]: Unknown extern function pci_disable_device [2022-12-14 10:41:40,198 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:41:40,198 WARN L623 FunctionHandler]: Unknown extern function pci_release_regions [2022-12-14 10:41:40,198 WARN L623 FunctionHandler]: Unknown extern function pci_disable_device [2022-12-14 10:41:40,200 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:41:40,202 WARN L623 FunctionHandler]: Unknown extern function init_timer_key [2022-12-14 10:41:40,203 WARN L623 FunctionHandler]: Unknown extern function add_timer [2022-12-14 10:41:40,208 WARN L623 FunctionHandler]: Unknown extern function consume_skb [2022-12-14 10:41:40,209 WARN L623 FunctionHandler]: Unknown extern function consume_skb [2022-12-14 10:41:40,214 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:41:40,214 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:41:40,215 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:41:40,215 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:41:40,215 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:41:40,215 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:41:40,220 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:41:40,223 WARN L623 FunctionHandler]: Unknown extern function skb_put [2022-12-14 10:41:40,226 WARN L623 FunctionHandler]: Unknown extern function skb_put [2022-12-14 10:41:40,248 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:41:40,250 WARN L623 FunctionHandler]: Unknown extern function consume_skb [2022-12-14 10:41:40,264 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 10:41:40,267 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 10:41:40,272 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:41:40,272 WARN L623 FunctionHandler]: Unknown extern function dev_trans_start [2022-12-14 10:41:40,275 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 10:41:40,276 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 10:41:40,276 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 10:41:40,276 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 10:41:40,276 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 10:41:40,276 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 10:41:40,276 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 10:41:40,277 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 10:41:40,277 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 10:41:40,277 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 10:41:40,277 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 10:41:40,277 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 10:41:40,277 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 10:41:40,277 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 10:41:40,277 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 10:41:40,278 WARN L623 FunctionHandler]: Unknown extern function hdlc_start_xmit [2022-12-14 10:41:40,279 WARN L623 FunctionHandler]: Unknown extern function hdlc_change_mtu [2022-12-14 10:41:40,280 WARN L623 FunctionHandler]: Unknown extern function ldv_initialize [2022-12-14 10:41:40,282 WARN L623 FunctionHandler]: Unknown extern function ldv_switch_to_interrupt_context [2022-12-14 10:41:40,282 WARN L623 FunctionHandler]: Unknown extern function ldv_switch_to_process_context [2022-12-14 10:41:40,286 WARN L623 FunctionHandler]: Unknown extern function ldv_pre_probe [2022-12-14 10:41:40,288 WARN L623 FunctionHandler]: Unknown extern function ldv_pre_register_netdev [2022-12-14 10:41:40,295 WARN L623 FunctionHandler]: Unknown extern function ldv_switch_to_interrupt_context [2022-12-14 10:41:40,296 WARN L623 FunctionHandler]: Unknown extern function ldv_switch_to_process_context [2022-12-14 10:41:40,296 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-12-14 10:41:40,297 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-12-14 10:41:40,297 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-12-14 10:41:40,297 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-12-14 10:41:40,297 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-12-14 10:41:40,297 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-12-14 10:41:40,297 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-12-14 10:41:40,297 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-12-14 10:41:40,297 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-12-14 10:41:40,298 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-12-14 10:41:40,298 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-12-14 10:41:40,298 WARN L623 FunctionHandler]: Unknown extern function register_netdev [2022-12-14 10:41:40,298 WARN L623 FunctionHandler]: Unknown extern function free_netdev [2022-12-14 10:41:40,298 WARN L623 FunctionHandler]: Unknown extern function unregister_hdlc_device [2022-12-14 10:41:40,299 WARN L623 FunctionHandler]: Unknown extern function free_netdev [2022-12-14 10:41:40,299 WARN L623 FunctionHandler]: Unknown extern function del_timer [2022-12-14 10:41:40,299 WARN L623 FunctionHandler]: Unknown extern function free_irq [2022-12-14 10:41:40,300 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-12-14 10:41:40,300 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-12-14 10:41:40,300 WARN L623 FunctionHandler]: Unknown extern function __pci_register_driver [2022-12-14 10:41:40,300 WARN L623 FunctionHandler]: Unknown extern function pci_unregister_driver [2022-12-14 10:41:40,300 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-12-14 10:41:40,306 WARN L623 FunctionHandler]: Unknown extern function hdlc_ioctl [2022-12-14 10:41:40,308 WARN L623 FunctionHandler]: Unknown extern function hdlc_open [2022-12-14 10:41:40,309 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:41:40,312 WARN L623 FunctionHandler]: Unknown extern function hdlc_close [2022-12-14 10:41:40,316 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:41:40,324 WARN L623 FunctionHandler]: Unknown extern function netif_rx [2022-12-14 10:41:40,327 WARN L623 FunctionHandler]: Unknown extern function ldv_check_alloc_flags [2022-12-14 10:41:40,327 WARN L623 FunctionHandler]: Unknown extern function ldv_after_alloc [2022-12-14 10:41:40,328 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 10:41:40,347 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_d1fd9ee9-7882-4f00-b926-c177a5512ced/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wan-lmc-lmc.cil.i[394320,394333] [2022-12-14 10:41:40,347 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_d1fd9ee9-7882-4f00-b926-c177a5512ced/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wan-lmc-lmc.cil.i[394489,394502] [2022-12-14 10:41:40,347 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_d1fd9ee9-7882-4f00-b926-c177a5512ced/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wan-lmc-lmc.cil.i[394656,394669] [2022-12-14 10:41:40,348 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_d1fd9ee9-7882-4f00-b926-c177a5512ced/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wan-lmc-lmc.cil.i[394824,394837] [2022-12-14 10:41:40,348 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 10:41:40,349 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 10:41:40,350 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 10:41:40,352 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 10:41:40,480 INFO L208 MainTranslator]: Completed translation [2022-12-14 10:41:40,480 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:41:40 WrapperNode [2022-12-14 10:41:40,480 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 10:41:40,481 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 10:41:40,481 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 10:41:40,481 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 10:41:40,487 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:41:40" (1/1) ... [2022-12-14 10:41:40,558 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:41:40" (1/1) ... [2022-12-14 10:41:40,689 INFO L138 Inliner]: procedures = 495, calls = 2611, calls flagged for inlining = 242, calls inlined = 227, statements flattened = 5074 [2022-12-14 10:41:40,690 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 10:41:40,690 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 10:41:40,690 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 10:41:40,690 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 10:41:40,697 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:41:40" (1/1) ... [2022-12-14 10:41:40,697 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:41:40" (1/1) ... [2022-12-14 10:41:40,719 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:41:40" (1/1) ... [2022-12-14 10:41:40,719 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:41:40" (1/1) ... [2022-12-14 10:41:40,805 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:41:40" (1/1) ... [2022-12-14 10:41:40,823 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:41:40" (1/1) ... [2022-12-14 10:41:40,847 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:41:40" (1/1) ... [2022-12-14 10:41:40,860 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:41:40" (1/1) ... [2022-12-14 10:41:40,886 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 10:41:40,887 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 10:41:40,887 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 10:41:40,887 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 10:41:40,887 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:41:40" (1/1) ... [2022-12-14 10:41:40,892 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 10:41:40,899 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1fd9ee9-7882-4f00-b926-c177a5512ced/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 10:41:40,911 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1fd9ee9-7882-4f00-b926-c177a5512ced/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 10:41:40,913 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1fd9ee9-7882-4f00-b926-c177a5512ced/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 10:41:40,952 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_running_reset [2022-12-14 10:41:40,952 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_running_reset [2022-12-14 10:41:40,952 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2022-12-14 10:41:40,952 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2022-12-14 10:41:40,952 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_t1_set_crc_length [2022-12-14 10:41:40,952 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_t1_set_crc_length [2022-12-14 10:41:40,952 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-12-14 10:41:40,953 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-12-14 10:41:40,953 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_dec_reset [2022-12-14 10:41:40,953 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_dec_reset [2022-12-14 10:41:40,953 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_ssi_get_link_status [2022-12-14 10:41:40,953 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_ssi_get_link_status [2022-12-14 10:41:40,953 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2022-12-14 10:41:40,953 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2022-12-14 10:41:40,953 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-12-14 10:41:40,953 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-12-14 10:41:40,953 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_ssi_default [2022-12-14 10:41:40,953 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_ssi_default [2022-12-14 10:41:40,953 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_gpio_mkinput [2022-12-14 10:41:40,953 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_gpio_mkinput [2022-12-14 10:41:40,954 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-12-14 10:41:40,954 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-12-14 10:41:40,954 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_t1_set_status [2022-12-14 10:41:40,954 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_t1_set_status [2022-12-14 10:41:40,954 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_ds3_set_100ft [2022-12-14 10:41:40,954 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_ds3_set_100ft [2022-12-14 10:41:40,954 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_64 [2022-12-14 10:41:40,954 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_64 [2022-12-14 10:41:40,954 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_dummy_set_1 [2022-12-14 10:41:40,954 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_dummy_set_1 [2022-12-14 10:41:40,954 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~TO~VOID [2022-12-14 10:41:40,954 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~TO~VOID [2022-12-14 10:41:40,954 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_proto_close [2022-12-14 10:41:40,954 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_proto_close [2022-12-14 10:41:40,954 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_ds3_watchdog [2022-12-14 10:41:40,955 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_ds3_watchdog [2022-12-14 10:41:40,955 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_reset [2022-12-14 10:41:40,955 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_reset [2022-12-14 10:41:40,955 INFO L130 BoogieDeclarations]: Found specification of procedure dev_to_sc [2022-12-14 10:41:40,955 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_to_sc [2022-12-14 10:41:40,955 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_proto_netif [2022-12-14 10:41:40,955 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_proto_netif [2022-12-14 10:41:40,955 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-12-14 10:41:40,955 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-12-14 10:41:40,955 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-12-14 10:41:40,955 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-12-14 10:41:40,955 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_trace [2022-12-14 10:41:40,955 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_trace [2022-12-14 10:41:40,955 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_hssi_get_link_status [2022-12-14 10:41:40,956 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_hssi_get_link_status [2022-12-14 10:41:40,956 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-14 10:41:40,956 INFO L130 BoogieDeclarations]: Found specification of procedure capable [2022-12-14 10:41:40,956 INFO L138 BoogieDeclarations]: Found implementation of procedure capable [2022-12-14 10:41:40,956 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-12-14 10:41:40,956 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-12-14 10:41:40,956 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-12-14 10:41:40,956 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2022-12-14 10:41:40,956 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2022-12-14 10:41:40,956 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_ds3_default [2022-12-14 10:41:40,956 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_ds3_default [2022-12-14 10:41:40,956 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_t1_set_clock [2022-12-14 10:41:40,956 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_t1_set_clock [2022-12-14 10:41:40,956 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-12-14 10:41:40,956 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-12-14 10:41:40,957 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-12-14 10:41:40,957 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_led_off [2022-12-14 10:41:40,957 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_led_off [2022-12-14 10:41:40,957 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-14 10:41:40,957 INFO L130 BoogieDeclarations]: Found specification of procedure dev_to_hdlc [2022-12-14 10:41:40,957 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_to_hdlc [2022-12-14 10:41:40,957 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2022-12-14 10:41:40,957 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2022-12-14 10:41:40,957 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_hssi_default [2022-12-14 10:41:40,957 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_hssi_default [2022-12-14 10:41:40,957 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2022-12-14 10:41:40,957 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2022-12-14 10:41:40,957 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2022-12-14 10:41:40,957 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2022-12-14 10:41:40,958 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_softreset [2022-12-14 10:41:40,958 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_softreset [2022-12-14 10:41:40,958 INFO L130 BoogieDeclarations]: Found specification of procedure write_av9110_bit [2022-12-14 10:41:40,958 INFO L138 BoogieDeclarations]: Found implementation of procedure write_av9110_bit [2022-12-14 10:41:40,958 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2022-12-14 10:41:40,958 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2022-12-14 10:41:40,958 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2022-12-14 10:41:40,958 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2022-12-14 10:41:40,958 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_ds3_set_crc_length [2022-12-14 10:41:40,958 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_ds3_set_crc_length [2022-12-14 10:41:40,958 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_mii_writereg [2022-12-14 10:41:40,958 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_mii_writereg [2022-12-14 10:41:40,958 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2022-12-14 10:41:40,958 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2022-12-14 10:41:40,958 INFO L130 BoogieDeclarations]: Found specification of procedure virt_to_phys [2022-12-14 10:41:40,959 INFO L138 BoogieDeclarations]: Found implementation of procedure virt_to_phys [2022-12-14 10:41:40,959 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_ssi_set_status [2022-12-14 10:41:40,959 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_ssi_set_status [2022-12-14 10:41:40,959 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-12-14 10:41:40,959 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2022-12-14 10:41:40,959 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2022-12-14 10:41:40,959 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_2 [2022-12-14 10:41:40,959 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_2 [2022-12-14 10:41:40,959 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 10:41:40,959 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-12-14 10:41:40,959 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-12-14 10:41:40,959 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-12-14 10:41:40,959 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-12-14 10:41:40,959 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_lmc_lock_of_lmc___softc [2022-12-14 10:41:40,959 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_lmc_lock_of_lmc___softc [2022-12-14 10:41:40,959 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-12-14 10:41:40,960 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_mii_readreg [2022-12-14 10:41:40,960 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_mii_readreg [2022-12-14 10:41:40,960 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-12-14 10:41:40,960 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-12-14 10:41:40,960 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_to_user [2022-12-14 10:41:40,960 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_to_user [2022-12-14 10:41:40,960 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2022-12-14 10:41:40,960 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2022-12-14 10:41:40,960 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_t1_init [2022-12-14 10:41:40,960 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_t1_init [2022-12-14 10:41:40,960 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2022-12-14 10:41:40,960 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2022-12-14 10:41:40,960 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_proto_open [2022-12-14 10:41:40,960 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_proto_open [2022-12-14 10:41:40,961 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2022-12-14 10:41:40,961 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2022-12-14 10:41:40,961 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2022-12-14 10:41:40,961 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2022-12-14 10:41:40,961 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_hssi_watchdog [2022-12-14 10:41:40,961 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_hssi_watchdog [2022-12-14 10:41:40,961 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_hssi_set_status [2022-12-14 10:41:40,961 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_hssi_set_status [2022-12-14 10:41:40,961 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_set_protocol [2022-12-14 10:41:40,961 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_set_protocol [2022-12-14 10:41:40,961 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_ssi_set_clock [2022-12-14 10:41:40,961 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_ssi_set_clock [2022-12-14 10:41:40,961 INFO L130 BoogieDeclarations]: Found specification of procedure skb_tail_pointer [2022-12-14 10:41:40,961 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_tail_pointer [2022-12-14 10:41:40,961 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 10:41:40,961 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 10:41:40,962 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_open [2022-12-14 10:41:40,962 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_open [2022-12-14 10:41:40,962 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-12-14 10:41:40,962 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-12-14 10:41:40,962 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-12-14 10:41:40,962 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-12-14 10:41:40,962 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_lmc_driver_exit_17_2 [2022-12-14 10:41:40,962 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_lmc_driver_exit_17_2 [2022-12-14 10:41:40,962 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-12-14 10:41:40,962 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-12-14 10:41:40,962 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2022-12-14 10:41:40,962 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2022-12-14 10:41:40,962 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_t1_get_link_status [2022-12-14 10:41:40,962 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_t1_get_link_status [2022-12-14 10:41:40,963 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_t1_set_circuit_type [2022-12-14 10:41:40,963 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_t1_set_circuit_type [2022-12-14 10:41:40,963 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_ds3_set_status [2022-12-14 10:41:40,963 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_ds3_set_status [2022-12-14 10:41:40,963 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-12-14 10:41:40,963 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-12-14 10:41:40,963 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_ds3_get_link_status [2022-12-14 10:41:40,963 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_ds3_get_link_status [2022-12-14 10:41:40,963 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_ssi_init [2022-12-14 10:41:40,963 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_ssi_init [2022-12-14 10:41:40,963 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2022-12-14 10:41:40,963 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2022-12-14 10:41:40,963 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_ds3_set_scram [2022-12-14 10:41:40,963 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_ds3_set_scram [2022-12-14 10:41:40,963 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_ds3_init [2022-12-14 10:41:40,964 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_ds3_init [2022-12-14 10:41:40,964 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_gpio_mkoutput [2022-12-14 10:41:40,964 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_gpio_mkoutput [2022-12-14 10:41:40,964 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2022-12-14 10:41:40,964 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2022-12-14 10:41:40,964 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-14 10:41:40,964 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_driver_timeout [2022-12-14 10:41:40,964 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_driver_timeout [2022-12-14 10:41:40,964 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_lmc_lock_of_lmc___softc [2022-12-14 10:41:40,964 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_lmc_lock_of_lmc___softc [2022-12-14 10:41:40,964 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-12-14 10:41:40,964 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2022-12-14 10:41:40,964 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2022-12-14 10:41:40,964 INFO L130 BoogieDeclarations]: Found specification of procedure write_av9110 [2022-12-14 10:41:40,964 INFO L138 BoogieDeclarations]: Found implementation of procedure write_av9110 [2022-12-14 10:41:40,965 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-12-14 10:41:40,965 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2022-12-14 10:41:40,965 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2022-12-14 10:41:40,965 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_ssi_set_speed [2022-12-14 10:41:40,965 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_ssi_set_speed [2022-12-14 10:41:40,965 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_hssi_set_crc_length [2022-12-14 10:41:40,965 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_hssi_set_crc_length [2022-12-14 10:41:40,965 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2022-12-14 10:41:40,965 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2022-12-14 10:41:40,965 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_proto_type [2022-12-14 10:41:40,965 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_proto_type [2022-12-14 10:41:40,965 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_remove_one [2022-12-14 10:41:40,965 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_remove_one [2022-12-14 10:41:40,965 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-12-14 10:41:40,965 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-12-14 10:41:40,965 INFO L130 BoogieDeclarations]: Found specification of procedure outl [2022-12-14 10:41:40,966 INFO L138 BoogieDeclarations]: Found implementation of procedure outl [2022-12-14 10:41:40,966 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_t1_write [2022-12-14 10:41:40,966 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_t1_write [2022-12-14 10:41:40,966 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_close [2022-12-14 10:41:40,966 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_close [2022-12-14 10:41:40,966 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-12-14 10:41:40,966 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-12-14 10:41:40,966 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2022-12-14 10:41:40,966 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2022-12-14 10:41:40,966 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-12-14 10:41:40,966 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-12-14 10:41:40,966 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_ssi_set_link_status [2022-12-14 10:41:40,966 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_ssi_set_link_status [2022-12-14 10:41:40,966 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_t1_watchdog [2022-12-14 10:41:40,966 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_t1_watchdog [2022-12-14 10:41:40,967 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-12-14 10:41:40,967 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-12-14 10:41:40,967 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_ssi_watchdog [2022-12-14 10:41:40,967 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_ssi_watchdog [2022-12-14 10:41:40,967 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-14 10:41:40,967 INFO L130 BoogieDeclarations]: Found specification of procedure dev_alloc_skb [2022-12-14 10:41:40,967 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_alloc_skb [2022-12-14 10:41:40,967 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-12-14 10:41:40,967 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-12-14 10:41:40,967 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_hssi_set_link_status [2022-12-14 10:41:40,967 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_hssi_set_link_status [2022-12-14 10:41:40,967 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_hssi_init [2022-12-14 10:41:40,967 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_hssi_init [2022-12-14 10:41:40,967 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_proto_attach [2022-12-14 10:41:40,967 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_proto_attach [2022-12-14 10:41:40,967 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_t1_default [2022-12-14 10:41:40,968 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_t1_default [2022-12-14 10:41:40,968 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2022-12-14 10:41:40,968 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2022-12-14 10:41:40,968 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_ssi_set_crc_length [2022-12-14 10:41:40,968 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_ssi_set_crc_length [2022-12-14 10:41:40,968 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_hssi_set_clock [2022-12-14 10:41:40,968 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_hssi_set_clock [2022-12-14 10:41:40,968 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-12-14 10:41:40,968 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-12-14 10:41:40,968 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_dummy_set2_1 [2022-12-14 10:41:40,968 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_dummy_set2_1 [2022-12-14 10:41:40,968 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_led_on [2022-12-14 10:41:40,968 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_led_on [2022-12-14 10:41:40,968 INFO L130 BoogieDeclarations]: Found specification of procedure inl [2022-12-14 10:41:40,968 INFO L138 BoogieDeclarations]: Found implementation of procedure inl [2022-12-14 10:41:40,968 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 10:41:40,969 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2022-12-14 10:41:40,969 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2022-12-14 10:41:40,969 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reset_mac_header [2022-12-14 10:41:40,969 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reset_mac_header [2022-12-14 10:41:40,969 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2022-12-14 10:41:40,969 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2022-12-14 10:41:40,969 INFO L130 BoogieDeclarations]: Found specification of procedure cpu_relax [2022-12-14 10:41:40,969 INFO L138 BoogieDeclarations]: Found implementation of procedure cpu_relax [2022-12-14 10:41:41,610 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 10:41:41,614 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 10:41:41,913 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-12-14 10:41:43,118 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint switch_break: call #t~mem1255#1.base, #t~mem1255#1.offset := read~$Pointer$(~sc#1.base, 141 + ~sc#1.offset, 8); [2022-12-14 10:41:43,119 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L12881: SUMMARY for call lmc_trace(#t~mem1255#1.base, #t~mem1255#1.offset, 129, 0); srcloc: null [2022-12-14 10:41:43,119 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L12881-1: havoc #t~mem1255#1.base, #t~mem1255#1.offset; [2022-12-14 10:41:47,574 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2022-12-14 10:41:47,683 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 10:41:48,747 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 10:41:48,747 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-14 10:41:48,751 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 10:41:48 BoogieIcfgContainer [2022-12-14 10:41:48,751 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 10:41:48,753 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 10:41:48,753 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 10:41:48,756 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 10:41:48,756 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 10:41:37" (1/3) ... [2022-12-14 10:41:48,757 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e98ed91 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 10:41:48, skipping insertion in model container [2022-12-14 10:41:48,757 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:41:40" (2/3) ... [2022-12-14 10:41:48,757 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e98ed91 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 10:41:48, skipping insertion in model container [2022-12-14 10:41:48,757 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 10:41:48" (3/3) ... [2022-12-14 10:41:48,758 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wan-lmc-lmc.cil.i [2022-12-14 10:41:48,773 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 10:41:48,774 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2022-12-14 10:41:48,864 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 10:41:48,868 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;@7b796b12, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 10:41:48,868 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-12-14 10:41:48,876 INFO L276 IsEmpty]: Start isEmpty. Operand has 2009 states, 1116 states have (on average 1.314516129032258) internal successors, (1467), 1186 states have internal predecessors, (1467), 772 states have call successors, (772), 119 states have call predecessors, (772), 118 states have return successors, (765), 722 states have call predecessors, (765), 765 states have call successors, (765) [2022-12-14 10:41:48,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2022-12-14 10:41:48,891 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:41:48,892 INFO L195 NwaCegarLoop]: trace histogram [16, 15, 15, 15, 15, 15, 15, 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] [2022-12-14 10:41:48,892 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 10:41:48,896 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:41:48,896 INFO L85 PathProgramCache]: Analyzing trace with hash -1276961775, now seen corresponding path program 1 times [2022-12-14 10:41:48,903 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:41:48,903 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1213785800] [2022-12-14 10:41:48,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:41:48,903 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:41:49,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:41:49,531 INFO L134 CoverageAnalysis]: Checked inductivity of 873 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 873 trivial. 0 not checked. [2022-12-14 10:41:49,531 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:41:49,531 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1213785800] [2022-12-14 10:41:49,532 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1213785800] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:41:49,532 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:41:49,532 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 10:41:49,534 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [46809837] [2022-12-14 10:41:49,534 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:41:49,537 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 10:41:49,538 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:41:49,561 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 10:41:49,561 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 10:41:49,566 INFO L87 Difference]: Start difference. First operand has 2009 states, 1116 states have (on average 1.314516129032258) internal successors, (1467), 1186 states have internal predecessors, (1467), 772 states have call successors, (772), 119 states have call predecessors, (772), 118 states have return successors, (765), 722 states have call predecessors, (765), 765 states have call successors, (765) Second operand has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 3 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2022-12-14 10:41:52,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:41:52,240 INFO L93 Difference]: Finished difference Result 5883 states and 8922 transitions. [2022-12-14 10:41:52,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 10:41:52,242 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 3 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) Word has length 174 [2022-12-14 10:41:52,243 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:41:52,299 INFO L225 Difference]: With dead ends: 5883 [2022-12-14 10:41:52,299 INFO L226 Difference]: Without dead ends: 3894 [2022-12-14 10:41:52,315 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 10:41:52,317 INFO L413 NwaCegarLoop]: 3364 mSDtfsCounter, 2863 mSDsluCounter, 2607 mSDsCounter, 0 mSdLazyCounter, 726 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2863 SdHoareTripleChecker+Valid, 5971 SdHoareTripleChecker+Invalid, 735 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 726 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-12-14 10:41:52,318 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2863 Valid, 5971 Invalid, 735 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 726 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2022-12-14 10:41:52,336 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3894 states. [2022-12-14 10:41:52,581 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3894 to 3890. [2022-12-14 10:41:52,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3890 states, 2175 states have (on average 1.3103448275862069) internal successors, (2850), 2314 states have internal predecessors, (2850), 1480 states have call successors, (1480), 233 states have call predecessors, (1480), 232 states have return successors, (1476), 1390 states have call predecessors, (1476), 1476 states have call successors, (1476) [2022-12-14 10:41:52,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3890 states to 3890 states and 5806 transitions. [2022-12-14 10:41:52,624 INFO L78 Accepts]: Start accepts. Automaton has 3890 states and 5806 transitions. Word has length 174 [2022-12-14 10:41:52,624 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:41:52,625 INFO L495 AbstractCegarLoop]: Abstraction has 3890 states and 5806 transitions. [2022-12-14 10:41:52,625 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 3 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2022-12-14 10:41:52,625 INFO L276 IsEmpty]: Start isEmpty. Operand 3890 states and 5806 transitions. [2022-12-14 10:41:52,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2022-12-14 10:41:52,635 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:41:52,635 INFO L195 NwaCegarLoop]: trace histogram [16, 15, 15, 15, 15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:41:52,636 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 10:41:52,636 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-12-14 10:41:52,636 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:41:52,637 INFO L85 PathProgramCache]: Analyzing trace with hash 1637722413, now seen corresponding path program 1 times [2022-12-14 10:41:52,637 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:41:52,637 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1697264174] [2022-12-14 10:41:52,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:41:52,637 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:41:52,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:41:52,907 INFO L134 CoverageAnalysis]: Checked inductivity of 870 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 870 trivial. 0 not checked. [2022-12-14 10:41:52,907 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:41:52,908 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1697264174] [2022-12-14 10:41:52,908 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1697264174] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:41:52,908 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:41:52,908 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 10:41:52,908 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1618871170] [2022-12-14 10:41:52,908 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:41:52,909 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 10:41:52,910 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:41:52,910 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 10:41:52,910 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 10:41:52,911 INFO L87 Difference]: Start difference. First operand 3890 states and 5806 transitions. Second operand has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 3 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) [2022-12-14 10:41:55,716 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:41:55,716 INFO L93 Difference]: Finished difference Result 11350 states and 16960 transitions. [2022-12-14 10:41:55,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 10:41:55,717 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 3 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) Word has length 181 [2022-12-14 10:41:55,717 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:41:55,759 INFO L225 Difference]: With dead ends: 11350 [2022-12-14 10:41:55,759 INFO L226 Difference]: Without dead ends: 7491 [2022-12-14 10:41:55,779 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 10:41:55,780 INFO L413 NwaCegarLoop]: 3360 mSDtfsCounter, 2730 mSDsluCounter, 2625 mSDsCounter, 0 mSdLazyCounter, 711 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2730 SdHoareTripleChecker+Valid, 5985 SdHoareTripleChecker+Invalid, 717 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 711 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-12-14 10:41:55,781 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2730 Valid, 5985 Invalid, 717 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 711 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2022-12-14 10:41:55,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7491 states. [2022-12-14 10:41:56,024 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7491 to 7461. [2022-12-14 10:41:56,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7461 states, 4162 states have (on average 1.3092263334935128) internal successors, (5449), 4434 states have internal predecessors, (5449), 2843 states have call successors, (2843), 454 states have call predecessors, (2843), 453 states have return successors, (2863), 2660 states have call predecessors, (2863), 2839 states have call successors, (2863) [2022-12-14 10:41:56,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7461 states to 7461 states and 11155 transitions. [2022-12-14 10:41:56,073 INFO L78 Accepts]: Start accepts. Automaton has 7461 states and 11155 transitions. Word has length 181 [2022-12-14 10:41:56,074 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:41:56,074 INFO L495 AbstractCegarLoop]: Abstraction has 7461 states and 11155 transitions. [2022-12-14 10:41:56,074 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 3 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) [2022-12-14 10:41:56,074 INFO L276 IsEmpty]: Start isEmpty. Operand 7461 states and 11155 transitions. [2022-12-14 10:41:56,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2022-12-14 10:41:56,078 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:41:56,079 INFO L195 NwaCegarLoop]: trace histogram [16, 15, 15, 15, 15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:41:56,079 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-14 10:41:56,079 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-12-14 10:41:56,079 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:41:56,079 INFO L85 PathProgramCache]: Analyzing trace with hash -2100875851, now seen corresponding path program 1 times [2022-12-14 10:41:56,079 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:41:56,080 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [209255243] [2022-12-14 10:41:56,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:41:56,080 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:41:56,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:41:56,270 INFO L134 CoverageAnalysis]: Checked inductivity of 870 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 870 trivial. 0 not checked. [2022-12-14 10:41:56,271 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:41:56,271 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [209255243] [2022-12-14 10:41:56,271 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [209255243] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:41:56,271 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:41:56,271 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 10:41:56,271 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [75161416] [2022-12-14 10:41:56,272 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:41:56,272 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 10:41:56,272 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:41:56,273 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 10:41:56,273 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 10:41:56,273 INFO L87 Difference]: Start difference. First operand 7461 states and 11155 transitions. Second operand has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 3 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2022-12-14 10:41:58,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:41:58,861 INFO L93 Difference]: Finished difference Result 21045 states and 31407 transitions. [2022-12-14 10:41:58,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 10:41:58,861 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 3 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) Word has length 183 [2022-12-14 10:41:58,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:41:58,953 INFO L225 Difference]: With dead ends: 21045 [2022-12-14 10:41:58,953 INFO L226 Difference]: Without dead ends: 13615 [2022-12-14 10:41:59,012 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 10:41:59,013 INFO L413 NwaCegarLoop]: 3398 mSDtfsCounter, 2429 mSDsluCounter, 2598 mSDsCounter, 0 mSdLazyCounter, 758 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2429 SdHoareTripleChecker+Valid, 5996 SdHoareTripleChecker+Invalid, 765 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 758 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-12-14 10:41:59,014 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2429 Valid, 5996 Invalid, 765 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 758 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2022-12-14 10:41:59,032 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13615 states. [2022-12-14 10:41:59,681 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13615 to 13573. [2022-12-14 10:41:59,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13573 states, 7598 states have (on average 1.3060015793629902) internal successors, (9923), 8108 states have internal predecessors, (9923), 5087 states have call successors, (5087), 886 states have call predecessors, (5087), 885 states have return successors, (5217), 4722 states have call predecessors, (5217), 5083 states have call successors, (5217) [2022-12-14 10:41:59,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13573 states to 13573 states and 20227 transitions. [2022-12-14 10:41:59,765 INFO L78 Accepts]: Start accepts. Automaton has 13573 states and 20227 transitions. Word has length 183 [2022-12-14 10:41:59,765 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:41:59,765 INFO L495 AbstractCegarLoop]: Abstraction has 13573 states and 20227 transitions. [2022-12-14 10:41:59,765 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 3 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2022-12-14 10:41:59,765 INFO L276 IsEmpty]: Start isEmpty. Operand 13573 states and 20227 transitions. [2022-12-14 10:41:59,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2022-12-14 10:41:59,769 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:41:59,769 INFO L195 NwaCegarLoop]: trace histogram [16, 15, 15, 15, 15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:41:59,769 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-14 10:41:59,769 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-12-14 10:41:59,770 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:41:59,770 INFO L85 PathProgramCache]: Analyzing trace with hash 1385403649, now seen corresponding path program 1 times [2022-12-14 10:41:59,770 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:41:59,770 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2074655929] [2022-12-14 10:41:59,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:41:59,770 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:41:59,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:41:59,973 INFO L134 CoverageAnalysis]: Checked inductivity of 870 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 870 trivial. 0 not checked. [2022-12-14 10:41:59,973 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:41:59,973 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2074655929] [2022-12-14 10:41:59,974 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2074655929] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:41:59,974 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:41:59,974 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 10:41:59,974 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [638236329] [2022-12-14 10:41:59,974 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:41:59,974 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 10:41:59,975 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:41:59,975 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 10:41:59,975 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 10:41:59,975 INFO L87 Difference]: Start difference. First operand 13573 states and 20227 transitions. Second operand has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 3 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) [2022-12-14 10:42:03,700 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:42:03,700 INFO L93 Difference]: Finished difference Result 40113 states and 59775 transitions. [2022-12-14 10:42:03,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 10:42:03,701 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 3 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) Word has length 187 [2022-12-14 10:42:03,701 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:42:03,823 INFO L225 Difference]: With dead ends: 40113 [2022-12-14 10:42:03,823 INFO L226 Difference]: Without dead ends: 26571 [2022-12-14 10:42:03,886 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 10:42:03,886 INFO L413 NwaCegarLoop]: 3445 mSDtfsCounter, 2883 mSDsluCounter, 2571 mSDsCounter, 0 mSdLazyCounter, 706 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2883 SdHoareTripleChecker+Valid, 6016 SdHoareTripleChecker+Invalid, 709 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 706 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2022-12-14 10:42:03,887 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2883 Valid, 6016 Invalid, 709 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 706 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2022-12-14 10:42:03,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26571 states. [2022-12-14 10:42:04,877 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26571 to 26505. [2022-12-14 10:42:04,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26505 states, 14838 states have (on average 1.307386440221054) internal successors, (19399), 15856 states have internal predecessors, (19399), 9919 states have call successors, (9919), 1754 states have call predecessors, (9919), 1745 states have return successors, (10193), 9174 states have call predecessors, (10193), 9915 states have call successors, (10193) [2022-12-14 10:42:05,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26505 states to 26505 states and 39511 transitions. [2022-12-14 10:42:05,060 INFO L78 Accepts]: Start accepts. Automaton has 26505 states and 39511 transitions. Word has length 187 [2022-12-14 10:42:05,061 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:42:05,061 INFO L495 AbstractCegarLoop]: Abstraction has 26505 states and 39511 transitions. [2022-12-14 10:42:05,061 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 3 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) [2022-12-14 10:42:05,061 INFO L276 IsEmpty]: Start isEmpty. Operand 26505 states and 39511 transitions. [2022-12-14 10:42:05,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2022-12-14 10:42:05,067 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:42:05,067 INFO L195 NwaCegarLoop]: trace histogram [16, 15, 15, 15, 15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:42:05,068 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-14 10:42:05,068 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-12-14 10:42:05,068 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:42:05,068 INFO L85 PathProgramCache]: Analyzing trace with hash -453932748, now seen corresponding path program 1 times [2022-12-14 10:42:05,068 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:42:05,068 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [753801133] [2022-12-14 10:42:05,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:42:05,069 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:42:05,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:42:05,494 INFO L134 CoverageAnalysis]: Checked inductivity of 870 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 870 trivial. 0 not checked. [2022-12-14 10:42:05,494 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:42:05,494 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [753801133] [2022-12-14 10:42:05,494 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [753801133] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:42:05,494 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:42:05,495 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-14 10:42:05,495 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1637165923] [2022-12-14 10:42:05,495 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:42:05,495 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-14 10:42:05,496 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:42:05,496 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-14 10:42:05,496 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-12-14 10:42:05,496 INFO L87 Difference]: Start difference. First operand 26505 states and 39511 transitions. Second operand has 6 states, 5 states have (on average 8.6) internal successors, (43), 5 states have internal predecessors, (43), 3 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2022-12-14 10:42:15,751 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:42:15,751 INFO L93 Difference]: Finished difference Result 68913 states and 102616 transitions. [2022-12-14 10:42:15,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 10:42:15,752 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 8.6) internal successors, (43), 5 states have internal predecessors, (43), 3 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) Word has length 186 [2022-12-14 10:42:15,752 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:42:15,991 INFO L225 Difference]: With dead ends: 68913 [2022-12-14 10:42:15,992 INFO L226 Difference]: Without dead ends: 42439 [2022-12-14 10:42:16,079 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-12-14 10:42:16,079 INFO L413 NwaCegarLoop]: 4739 mSDtfsCounter, 11537 mSDsluCounter, 4221 mSDsCounter, 0 mSdLazyCounter, 3721 mSolverCounterSat, 6420 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11808 SdHoareTripleChecker+Valid, 8960 SdHoareTripleChecker+Invalid, 10141 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 6420 IncrementalHoareTripleChecker+Valid, 3721 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.4s IncrementalHoareTripleChecker+Time [2022-12-14 10:42:16,079 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11808 Valid, 8960 Invalid, 10141 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [6420 Valid, 3721 Invalid, 0 Unknown, 0 Unchecked, 8.4s Time] [2022-12-14 10:42:16,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42439 states. [2022-12-14 10:42:17,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42439 to 42343. [2022-12-14 10:42:17,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42343 states, 23751 states have (on average 1.3084922740095153) internal successors, (31078), 25479 states have internal predecessors, (31078), 15732 states have call successors, (15732), 2872 states have call predecessors, (15732), 2857 states have return successors, (16031), 14421 states have call predecessors, (16031), 15728 states have call successors, (16031) [2022-12-14 10:42:17,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42343 states to 42343 states and 62841 transitions. [2022-12-14 10:42:17,851 INFO L78 Accepts]: Start accepts. Automaton has 42343 states and 62841 transitions. Word has length 186 [2022-12-14 10:42:17,851 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:42:17,851 INFO L495 AbstractCegarLoop]: Abstraction has 42343 states and 62841 transitions. [2022-12-14 10:42:17,852 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 8.6) internal successors, (43), 5 states have internal predecessors, (43), 3 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2022-12-14 10:42:17,852 INFO L276 IsEmpty]: Start isEmpty. Operand 42343 states and 62841 transitions. [2022-12-14 10:42:17,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2022-12-14 10:42:17,858 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:42:17,858 INFO L195 NwaCegarLoop]: trace histogram [17, 15, 15, 15, 15, 15, 15, 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] [2022-12-14 10:42:17,858 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-14 10:42:17,858 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-12-14 10:42:17,859 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:42:17,859 INFO L85 PathProgramCache]: Analyzing trace with hash -705370439, now seen corresponding path program 1 times [2022-12-14 10:42:17,859 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:42:17,859 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2056678534] [2022-12-14 10:42:17,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:42:17,859 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:42:17,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:42:18,060 INFO L134 CoverageAnalysis]: Checked inductivity of 913 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 902 trivial. 0 not checked. [2022-12-14 10:42:18,060 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:42:18,060 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2056678534] [2022-12-14 10:42:18,060 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2056678534] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:42:18,060 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:42:18,061 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 10:42:18,061 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1609522752] [2022-12-14 10:42:18,061 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:42:18,061 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 10:42:18,061 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:42:18,062 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 10:42:18,062 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 10:42:18,062 INFO L87 Difference]: Start difference. First operand 42343 states and 62841 transitions. Second operand has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 3 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) [2022-12-14 10:42:22,682 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:42:22,682 INFO L93 Difference]: Finished difference Result 117885 states and 175178 transitions. [2022-12-14 10:42:22,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 10:42:22,683 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 3 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) Word has length 209 [2022-12-14 10:42:22,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:42:23,014 INFO L225 Difference]: With dead ends: 117885 [2022-12-14 10:42:23,014 INFO L226 Difference]: Without dead ends: 75573 [2022-12-14 10:42:23,179 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 10:42:23,180 INFO L413 NwaCegarLoop]: 3491 mSDtfsCounter, 2910 mSDsluCounter, 2623 mSDsCounter, 0 mSdLazyCounter, 716 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2910 SdHoareTripleChecker+Valid, 6114 SdHoareTripleChecker+Invalid, 720 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 716 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-12-14 10:42:23,180 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2910 Valid, 6114 Invalid, 720 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 716 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2022-12-14 10:42:23,240 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75573 states. [2022-12-14 10:42:26,067 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75573 to 75499. [2022-12-14 10:42:26,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75499 states, 42290 states have (on average 1.3088673445258927) internal successors, (55352), 45377 states have internal predecessors, (55352), 28154 states have call successors, (28154), 5085 states have call predecessors, (28154), 5052 states have return successors, (28744), 25802 states have call predecessors, (28744), 28150 states have call successors, (28744) [2022-12-14 10:42:26,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75499 states to 75499 states and 112250 transitions. [2022-12-14 10:42:26,503 INFO L78 Accepts]: Start accepts. Automaton has 75499 states and 112250 transitions. Word has length 209 [2022-12-14 10:42:26,503 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:42:26,503 INFO L495 AbstractCegarLoop]: Abstraction has 75499 states and 112250 transitions. [2022-12-14 10:42:26,504 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 3 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) [2022-12-14 10:42:26,504 INFO L276 IsEmpty]: Start isEmpty. Operand 75499 states and 112250 transitions. [2022-12-14 10:42:26,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 220 [2022-12-14 10:42:26,509 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:42:26,510 INFO L195 NwaCegarLoop]: trace histogram [19, 15, 15, 15, 15, 15, 15, 5, 5, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 10:42:26,510 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-14 10:42:26,510 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 10:42:26,510 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:42:26,510 INFO L85 PathProgramCache]: Analyzing trace with hash 1093790088, now seen corresponding path program 1 times [2022-12-14 10:42:26,510 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:42:26,510 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1169691554] [2022-12-14 10:42:26,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:42:26,511 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:42:26,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:42:26,810 INFO L134 CoverageAnalysis]: Checked inductivity of 1007 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1007 trivial. 0 not checked. [2022-12-14 10:42:26,810 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:42:26,810 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1169691554] [2022-12-14 10:42:26,810 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1169691554] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:42:26,810 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:42:26,811 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 10:42:26,811 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [428192399] [2022-12-14 10:42:26,811 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:42:26,811 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 10:42:26,811 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:42:26,812 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 10:42:26,812 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 10:42:26,812 INFO L87 Difference]: Start difference. First operand 75499 states and 112250 transitions. Second operand has 5 states, 5 states have (on average 10.0) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (28), 3 states have call predecessors, (28), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2022-12-14 10:42:32,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:42:32,416 INFO L93 Difference]: Finished difference Result 75505 states and 112255 transitions. [2022-12-14 10:42:32,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 10:42:32,416 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (28), 3 states have call predecessors, (28), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) Word has length 219 [2022-12-14 10:42:32,417 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:42:32,734 INFO L225 Difference]: With dead ends: 75505 [2022-12-14 10:42:32,735 INFO L226 Difference]: Without dead ends: 75503 [2022-12-14 10:42:32,771 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 10:42:32,772 INFO L413 NwaCegarLoop]: 2622 mSDtfsCounter, 2913 mSDsluCounter, 5230 mSDsCounter, 0 mSdLazyCounter, 1073 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2925 SdHoareTripleChecker+Valid, 7852 SdHoareTripleChecker+Invalid, 1074 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1073 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-12-14 10:42:32,772 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2925 Valid, 7852 Invalid, 1074 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1073 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2022-12-14 10:42:32,832 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75503 states. [2022-12-14 10:42:35,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75503 to 75503. [2022-12-14 10:42:35,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75503 states, 42293 states have (on average 1.308845435414844) internal successors, (55355), 45380 states have internal predecessors, (55355), 28154 states have call successors, (28154), 5086 states have call predecessors, (28154), 5053 states have return successors, (28744), 25802 states have call predecessors, (28744), 28150 states have call successors, (28744) [2022-12-14 10:42:36,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75503 states to 75503 states and 112253 transitions. [2022-12-14 10:42:36,088 INFO L78 Accepts]: Start accepts. Automaton has 75503 states and 112253 transitions. Word has length 219 [2022-12-14 10:42:36,089 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:42:36,089 INFO L495 AbstractCegarLoop]: Abstraction has 75503 states and 112253 transitions. [2022-12-14 10:42:36,089 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (28), 3 states have call predecessors, (28), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2022-12-14 10:42:36,089 INFO L276 IsEmpty]: Start isEmpty. Operand 75503 states and 112253 transitions. [2022-12-14 10:42:36,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 225 [2022-12-14 10:42:36,099 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:42:36,099 INFO L195 NwaCegarLoop]: trace histogram [19, 15, 15, 15, 15, 15, 15, 5, 5, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 10:42:36,099 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-14 10:42:36,099 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 10:42:36,099 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:42:36,099 INFO L85 PathProgramCache]: Analyzing trace with hash 2028386815, now seen corresponding path program 1 times [2022-12-14 10:42:36,100 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:42:36,100 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1302820592] [2022-12-14 10:42:36,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:42:36,100 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:42:36,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:42:36,375 INFO L134 CoverageAnalysis]: Checked inductivity of 1009 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1007 trivial. 0 not checked. [2022-12-14 10:42:36,375 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:42:36,376 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1302820592] [2022-12-14 10:42:36,376 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1302820592] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:42:36,376 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:42:36,376 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 10:42:36,376 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1302671939] [2022-12-14 10:42:36,376 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:42:36,377 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 10:42:36,377 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:42:36,377 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 10:42:36,377 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 10:42:36,378 INFO L87 Difference]: Start difference. First operand 75503 states and 112253 transitions. Second operand has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (29), 3 states have call predecessors, (29), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2022-12-14 10:42:41,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:42:41,581 INFO L93 Difference]: Finished difference Result 75509 states and 112258 transitions. [2022-12-14 10:42:41,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 10:42:41,582 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (29), 3 states have call predecessors, (29), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) Word has length 224 [2022-12-14 10:42:41,582 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:42:41,963 INFO L225 Difference]: With dead ends: 75509 [2022-12-14 10:42:41,963 INFO L226 Difference]: Without dead ends: 75507 [2022-12-14 10:42:41,993 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-12-14 10:42:41,994 INFO L413 NwaCegarLoop]: 2625 mSDtfsCounter, 2908 mSDsluCounter, 5230 mSDsCounter, 0 mSdLazyCounter, 1073 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2919 SdHoareTripleChecker+Valid, 7855 SdHoareTripleChecker+Invalid, 1074 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1073 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-12-14 10:42:41,994 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2919 Valid, 7855 Invalid, 1074 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1073 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-12-14 10:42:42,041 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75507 states. [2022-12-14 10:42:45,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75507 to 75507. [2022-12-14 10:42:45,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75507 states, 42296 states have (on average 1.3088235294117647) internal successors, (55358), 45383 states have internal predecessors, (55358), 28154 states have call successors, (28154), 5087 states have call predecessors, (28154), 5054 states have return successors, (28744), 25802 states have call predecessors, (28744), 28150 states have call successors, (28744) [2022-12-14 10:42:45,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75507 states to 75507 states and 112256 transitions. [2022-12-14 10:42:45,819 INFO L78 Accepts]: Start accepts. Automaton has 75507 states and 112256 transitions. Word has length 224 [2022-12-14 10:42:45,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:42:45,820 INFO L495 AbstractCegarLoop]: Abstraction has 75507 states and 112256 transitions. [2022-12-14 10:42:45,820 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (29), 3 states have call predecessors, (29), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2022-12-14 10:42:45,820 INFO L276 IsEmpty]: Start isEmpty. Operand 75507 states and 112256 transitions. [2022-12-14 10:42:45,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-12-14 10:42:45,830 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:42:45,830 INFO L195 NwaCegarLoop]: trace histogram [19, 15, 15, 15, 15, 15, 15, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 10:42:45,830 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-12-14 10:42:45,831 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 10:42:45,831 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:42:45,831 INFO L85 PathProgramCache]: Analyzing trace with hash 127747427, now seen corresponding path program 1 times [2022-12-14 10:42:45,831 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:42:45,831 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [356614743] [2022-12-14 10:42:45,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:42:45,832 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:42:45,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:42:46,164 INFO L134 CoverageAnalysis]: Checked inductivity of 1009 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 1005 trivial. 0 not checked. [2022-12-14 10:42:46,164 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:42:46,165 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [356614743] [2022-12-14 10:42:46,165 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [356614743] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:42:46,165 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:42:46,165 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 10:42:46,165 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [498236101] [2022-12-14 10:42:46,165 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:42:46,166 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 10:42:46,166 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:42:46,166 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 10:42:46,166 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 10:42:46,166 INFO L87 Difference]: Start difference. First operand 75507 states and 112256 transitions. Second operand has 5 states, 5 states have (on average 10.2) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (28), 3 states have call predecessors, (28), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2022-12-14 10:42:52,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:42:52,203 INFO L93 Difference]: Finished difference Result 75513 states and 112261 transitions. [2022-12-14 10:42:52,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 10:42:52,204 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (28), 3 states have call predecessors, (28), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) Word has length 227 [2022-12-14 10:42:52,204 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:42:52,576 INFO L225 Difference]: With dead ends: 75513 [2022-12-14 10:42:52,576 INFO L226 Difference]: Without dead ends: 75511 [2022-12-14 10:42:52,628 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-12-14 10:42:52,628 INFO L413 NwaCegarLoop]: 2625 mSDtfsCounter, 2909 mSDsluCounter, 5230 mSDsCounter, 0 mSdLazyCounter, 1073 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2919 SdHoareTripleChecker+Valid, 7855 SdHoareTripleChecker+Invalid, 1074 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1073 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2022-12-14 10:42:52,629 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2919 Valid, 7855 Invalid, 1074 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1073 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2022-12-14 10:42:52,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75511 states. [2022-12-14 10:42:56,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75511 to 75511. [2022-12-14 10:42:56,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75511 states, 42299 states have (on average 1.3088016265159932) internal successors, (55361), 45386 states have internal predecessors, (55361), 28154 states have call successors, (28154), 5088 states have call predecessors, (28154), 5055 states have return successors, (28744), 25802 states have call predecessors, (28744), 28150 states have call successors, (28744) [2022-12-14 10:42:56,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75511 states to 75511 states and 112259 transitions. [2022-12-14 10:42:56,489 INFO L78 Accepts]: Start accepts. Automaton has 75511 states and 112259 transitions. Word has length 227 [2022-12-14 10:42:56,489 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:42:56,489 INFO L495 AbstractCegarLoop]: Abstraction has 75511 states and 112259 transitions. [2022-12-14 10:42:56,489 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (28), 3 states have call predecessors, (28), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2022-12-14 10:42:56,489 INFO L276 IsEmpty]: Start isEmpty. Operand 75511 states and 112259 transitions. [2022-12-14 10:42:56,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 234 [2022-12-14 10:42:56,497 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:42:56,497 INFO L195 NwaCegarLoop]: trace histogram [19, 15, 15, 15, 15, 15, 15, 5, 5, 4, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 10:42:56,497 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-12-14 10:42:56,497 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 10:42:56,498 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:42:56,498 INFO L85 PathProgramCache]: Analyzing trace with hash -2136758204, now seen corresponding path program 1 times [2022-12-14 10:42:56,498 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:42:56,498 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1660963031] [2022-12-14 10:42:56,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:42:56,498 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:42:56,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:42:56,847 INFO L134 CoverageAnalysis]: Checked inductivity of 1024 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 1018 trivial. 0 not checked. [2022-12-14 10:42:56,848 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:42:56,848 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1660963031] [2022-12-14 10:42:56,848 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1660963031] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:42:56,848 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:42:56,848 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 10:42:56,848 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1905800153] [2022-12-14 10:42:56,848 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:42:56,849 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 10:42:56,849 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:42:56,849 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 10:42:56,849 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 10:42:56,850 INFO L87 Difference]: Start difference. First operand 75511 states and 112259 transitions. Second operand has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (31), 3 states have call predecessors, (31), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2022-12-14 10:43:02,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:43:02,433 INFO L93 Difference]: Finished difference Result 75517 states and 112264 transitions. [2022-12-14 10:43:02,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 10:43:02,434 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (31), 3 states have call predecessors, (31), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) Word has length 233 [2022-12-14 10:43:02,434 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:43:02,790 INFO L225 Difference]: With dead ends: 75517 [2022-12-14 10:43:02,790 INFO L226 Difference]: Without dead ends: 75515 [2022-12-14 10:43:02,837 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 10:43:02,837 INFO L413 NwaCegarLoop]: 2625 mSDtfsCounter, 2908 mSDsluCounter, 5230 mSDsCounter, 0 mSdLazyCounter, 1073 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2917 SdHoareTripleChecker+Valid, 7855 SdHoareTripleChecker+Invalid, 1074 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1073 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-12-14 10:43:02,838 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2917 Valid, 7855 Invalid, 1074 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1073 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2022-12-14 10:43:02,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75515 states. [2022-12-14 10:43:06,755 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75515 to 75515. [2022-12-14 10:43:06,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75515 states, 42302 states have (on average 1.3087797267268686) internal successors, (55364), 45389 states have internal predecessors, (55364), 28154 states have call successors, (28154), 5089 states have call predecessors, (28154), 5056 states have return successors, (28744), 25802 states have call predecessors, (28744), 28150 states have call successors, (28744) [2022-12-14 10:43:07,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75515 states to 75515 states and 112262 transitions. [2022-12-14 10:43:07,185 INFO L78 Accepts]: Start accepts. Automaton has 75515 states and 112262 transitions. Word has length 233 [2022-12-14 10:43:07,186 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:43:07,186 INFO L495 AbstractCegarLoop]: Abstraction has 75515 states and 112262 transitions. [2022-12-14 10:43:07,186 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (31), 3 states have call predecessors, (31), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2022-12-14 10:43:07,186 INFO L276 IsEmpty]: Start isEmpty. Operand 75515 states and 112262 transitions. [2022-12-14 10:43:07,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 239 [2022-12-14 10:43:07,195 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:43:07,195 INFO L195 NwaCegarLoop]: trace histogram [19, 15, 15, 15, 15, 15, 15, 5, 5, 5, 4, 4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 10:43:07,196 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-12-14 10:43:07,196 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 10:43:07,196 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:43:07,196 INFO L85 PathProgramCache]: Analyzing trace with hash -1308485629, now seen corresponding path program 1 times [2022-12-14 10:43:07,196 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:43:07,196 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1074971432] [2022-12-14 10:43:07,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:43:07,196 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:43:07,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:43:07,446 INFO L134 CoverageAnalysis]: Checked inductivity of 1038 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 1030 trivial. 0 not checked. [2022-12-14 10:43:07,446 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:43:07,446 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1074971432] [2022-12-14 10:43:07,446 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1074971432] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:43:07,446 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:43:07,446 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 10:43:07,447 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1008097739] [2022-12-14 10:43:07,447 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:43:07,447 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 10:43:07,447 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:43:07,447 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 10:43:07,447 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 10:43:07,447 INFO L87 Difference]: Start difference. First operand 75515 states and 112262 transitions. Second operand has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (32), 3 states have call predecessors, (32), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2022-12-14 10:43:12,902 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:43:12,902 INFO L93 Difference]: Finished difference Result 75521 states and 112267 transitions. [2022-12-14 10:43:12,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 10:43:12,903 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (32), 3 states have call predecessors, (32), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) Word has length 238 [2022-12-14 10:43:12,903 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:43:13,263 INFO L225 Difference]: With dead ends: 75521 [2022-12-14 10:43:13,263 INFO L226 Difference]: Without dead ends: 75519 [2022-12-14 10:43:13,313 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 10:43:13,313 INFO L413 NwaCegarLoop]: 2625 mSDtfsCounter, 2908 mSDsluCounter, 5230 mSDsCounter, 0 mSdLazyCounter, 1073 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2916 SdHoareTripleChecker+Valid, 7855 SdHoareTripleChecker+Invalid, 1074 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1073 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-12-14 10:43:13,313 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2916 Valid, 7855 Invalid, 1074 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1073 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2022-12-14 10:43:13,375 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75519 states. [2022-12-14 10:43:17,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75519 to 75519. [2022-12-14 10:43:17,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75519 states, 42305 states have (on average 1.3087578300437301) internal successors, (55367), 45392 states have internal predecessors, (55367), 28154 states have call successors, (28154), 5090 states have call predecessors, (28154), 5057 states have return successors, (28744), 25802 states have call predecessors, (28744), 28150 states have call successors, (28744) [2022-12-14 10:43:17,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75519 states to 75519 states and 112265 transitions. [2022-12-14 10:43:17,727 INFO L78 Accepts]: Start accepts. Automaton has 75519 states and 112265 transitions. Word has length 238 [2022-12-14 10:43:17,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:43:17,728 INFO L495 AbstractCegarLoop]: Abstraction has 75519 states and 112265 transitions. [2022-12-14 10:43:17,728 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (32), 3 states have call predecessors, (32), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2022-12-14 10:43:17,728 INFO L276 IsEmpty]: Start isEmpty. Operand 75519 states and 112265 transitions. [2022-12-14 10:43:17,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 244 [2022-12-14 10:43:17,739 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:43:17,739 INFO L195 NwaCegarLoop]: trace histogram [19, 15, 15, 15, 15, 15, 15, 6, 5, 5, 5, 5, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 10:43:17,739 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-12-14 10:43:17,739 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 10:43:17,739 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:43:17,739 INFO L85 PathProgramCache]: Analyzing trace with hash 1532739428, now seen corresponding path program 1 times [2022-12-14 10:43:17,739 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:43:17,740 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1688184693] [2022-12-14 10:43:17,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:43:17,740 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:43:17,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:43:17,989 INFO L134 CoverageAnalysis]: Checked inductivity of 1056 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 1046 trivial. 0 not checked. [2022-12-14 10:43:17,989 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:43:17,989 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1688184693] [2022-12-14 10:43:17,989 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1688184693] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:43:17,990 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:43:17,990 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 10:43:17,990 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1121510153] [2022-12-14 10:43:17,990 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:43:17,990 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 10:43:17,990 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:43:17,991 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 10:43:17,991 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 10:43:17,991 INFO L87 Difference]: Start difference. First operand 75519 states and 112265 transitions. Second operand has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (33), 3 states have call predecessors, (33), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2022-12-14 10:43:26,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:43:26,981 INFO L93 Difference]: Finished difference Result 120481 states and 177562 transitions. [2022-12-14 10:43:26,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 10:43:26,982 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (33), 3 states have call predecessors, (33), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) Word has length 243 [2022-12-14 10:43:26,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:43:27,545 INFO L225 Difference]: With dead ends: 120481 [2022-12-14 10:43:27,545 INFO L226 Difference]: Without dead ends: 120479 [2022-12-14 10:43:27,602 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 10:43:27,603 INFO L413 NwaCegarLoop]: 3355 mSDtfsCounter, 2607 mSDsluCounter, 8387 mSDsCounter, 0 mSdLazyCounter, 1379 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2614 SdHoareTripleChecker+Valid, 11742 SdHoareTripleChecker+Invalid, 1381 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1379 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2022-12-14 10:43:27,603 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2614 Valid, 11742 Invalid, 1381 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1379 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2022-12-14 10:43:27,696 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120479 states. [2022-12-14 10:43:34,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120479 to 120379. [2022-12-14 10:43:34,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 120379 states, 65672 states have (on average 1.2845352661712754) internal successors, (84358), 71259 states have internal predecessors, (84358), 45766 states have call successors, (45766), 9103 states have call predecessors, (45766), 8938 states have return successors, (47338), 41310 states have call predecessors, (47338), 45762 states have call successors, (47338) [2022-12-14 10:43:34,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120379 states to 120379 states and 177462 transitions. [2022-12-14 10:43:34,852 INFO L78 Accepts]: Start accepts. Automaton has 120379 states and 177462 transitions. Word has length 243 [2022-12-14 10:43:34,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:43:34,852 INFO L495 AbstractCegarLoop]: Abstraction has 120379 states and 177462 transitions. [2022-12-14 10:43:34,852 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (33), 3 states have call predecessors, (33), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2022-12-14 10:43:34,852 INFO L276 IsEmpty]: Start isEmpty. Operand 120379 states and 177462 transitions. [2022-12-14 10:43:34,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 249 [2022-12-14 10:43:34,866 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:43:34,866 INFO L195 NwaCegarLoop]: trace histogram [19, 15, 15, 15, 15, 15, 15, 7, 6, 6, 5, 5, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 10:43:34,866 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-12-14 10:43:34,866 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-12-14 10:43:34,866 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:43:34,866 INFO L85 PathProgramCache]: Analyzing trace with hash 1083548771, now seen corresponding path program 1 times [2022-12-14 10:43:34,866 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:43:34,866 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1201559440] [2022-12-14 10:43:34,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:43:34,867 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:43:34,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:43:35,103 INFO L134 CoverageAnalysis]: Checked inductivity of 1078 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 1066 trivial. 0 not checked. [2022-12-14 10:43:35,103 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:43:35,103 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1201559440] [2022-12-14 10:43:35,103 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1201559440] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:43:35,103 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:43:35,104 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 10:43:35,104 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [528246907] [2022-12-14 10:43:35,104 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:43:35,104 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 10:43:35,104 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:43:35,105 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 10:43:35,105 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 10:43:35,105 INFO L87 Difference]: Start difference. First operand 120379 states and 177462 transitions. Second operand has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (34), 3 states have call predecessors, (34), 1 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2022-12-14 10:43:43,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:43:43,582 INFO L93 Difference]: Finished difference Result 120385 states and 177467 transitions. [2022-12-14 10:43:43,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 10:43:43,583 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (34), 3 states have call predecessors, (34), 1 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) Word has length 248 [2022-12-14 10:43:43,584 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:43:44,148 INFO L225 Difference]: With dead ends: 120385 [2022-12-14 10:43:44,149 INFO L226 Difference]: Without dead ends: 120383 [2022-12-14 10:43:44,205 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 10:43:44,206 INFO L413 NwaCegarLoop]: 2625 mSDtfsCounter, 2908 mSDsluCounter, 5230 mSDsCounter, 0 mSdLazyCounter, 1073 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2914 SdHoareTripleChecker+Valid, 7855 SdHoareTripleChecker+Invalid, 1074 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1073 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-12-14 10:43:44,206 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2914 Valid, 7855 Invalid, 1074 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1073 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2022-12-14 10:43:44,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120383 states. [2022-12-14 10:43:51,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120383 to 120383. [2022-12-14 10:43:51,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 120383 states, 65675 states have (on average 1.2845222687476208) internal successors, (84361), 71262 states have internal predecessors, (84361), 45766 states have call successors, (45766), 9104 states have call predecessors, (45766), 8939 states have return successors, (47338), 41310 states have call predecessors, (47338), 45762 states have call successors, (47338) [2022-12-14 10:43:52,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120383 states to 120383 states and 177465 transitions. [2022-12-14 10:43:52,121 INFO L78 Accepts]: Start accepts. Automaton has 120383 states and 177465 transitions. Word has length 248 [2022-12-14 10:43:52,122 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:43:52,122 INFO L495 AbstractCegarLoop]: Abstraction has 120383 states and 177465 transitions. [2022-12-14 10:43:52,122 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (34), 3 states have call predecessors, (34), 1 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2022-12-14 10:43:52,122 INFO L276 IsEmpty]: Start isEmpty. Operand 120383 states and 177465 transitions. [2022-12-14 10:43:52,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 254 [2022-12-14 10:43:52,139 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:43:52,139 INFO L195 NwaCegarLoop]: trace histogram [19, 15, 15, 15, 15, 15, 15, 8, 7, 7, 5, 5, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 10:43:52,139 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-12-14 10:43:52,139 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 10:43:52,139 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:43:52,139 INFO L85 PathProgramCache]: Analyzing trace with hash 2066423428, now seen corresponding path program 1 times [2022-12-14 10:43:52,140 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:43:52,140 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1825837708] [2022-12-14 10:43:52,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:43:52,140 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:43:52,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:43:52,363 INFO L134 CoverageAnalysis]: Checked inductivity of 1104 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 1090 trivial. 0 not checked. [2022-12-14 10:43:52,363 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:43:52,363 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1825837708] [2022-12-14 10:43:52,363 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1825837708] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:43:52,363 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:43:52,364 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 10:43:52,364 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [546857025] [2022-12-14 10:43:52,364 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:43:52,364 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 10:43:52,364 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:43:52,365 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 10:43:52,365 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 10:43:52,365 INFO L87 Difference]: Start difference. First operand 120383 states and 177465 transitions. Second operand has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (35), 3 states have call predecessors, (35), 1 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) [2022-12-14 10:44:00,987 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:44:00,987 INFO L93 Difference]: Finished difference Result 120389 states and 177470 transitions. [2022-12-14 10:44:00,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 10:44:00,988 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (35), 3 states have call predecessors, (35), 1 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) Word has length 253 [2022-12-14 10:44:00,988 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:44:01,588 INFO L225 Difference]: With dead ends: 120389 [2022-12-14 10:44:01,588 INFO L226 Difference]: Without dead ends: 120387 [2022-12-14 10:44:01,651 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 10:44:01,651 INFO L413 NwaCegarLoop]: 2625 mSDtfsCounter, 2908 mSDsluCounter, 5230 mSDsCounter, 0 mSdLazyCounter, 1073 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2913 SdHoareTripleChecker+Valid, 7855 SdHoareTripleChecker+Invalid, 1074 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1073 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-12-14 10:44:01,651 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2913 Valid, 7855 Invalid, 1074 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1073 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2022-12-14 10:44:01,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120387 states. [2022-12-14 10:44:09,189 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120387 to 120387. [2022-12-14 10:44:09,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 120387 states, 65678 states have (on average 1.2845092725113432) internal successors, (84364), 71265 states have internal predecessors, (84364), 45766 states have call successors, (45766), 9105 states have call predecessors, (45766), 8940 states have return successors, (47338), 41310 states have call predecessors, (47338), 45762 states have call successors, (47338) [2022-12-14 10:44:09,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120387 states to 120387 states and 177468 transitions. [2022-12-14 10:44:09,961 INFO L78 Accepts]: Start accepts. Automaton has 120387 states and 177468 transitions. Word has length 253 [2022-12-14 10:44:09,961 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:44:09,961 INFO L495 AbstractCegarLoop]: Abstraction has 120387 states and 177468 transitions. [2022-12-14 10:44:09,962 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (35), 3 states have call predecessors, (35), 1 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) [2022-12-14 10:44:09,962 INFO L276 IsEmpty]: Start isEmpty. Operand 120387 states and 177468 transitions. [2022-12-14 10:44:09,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 259 [2022-12-14 10:44:09,978 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:44:09,978 INFO L195 NwaCegarLoop]: trace histogram [19, 15, 15, 15, 15, 15, 15, 9, 8, 8, 5, 5, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 10:44:09,978 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-12-14 10:44:09,979 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-12-14 10:44:09,979 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:44:09,979 INFO L85 PathProgramCache]: Analyzing trace with hash -44111677, now seen corresponding path program 1 times [2022-12-14 10:44:09,979 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:44:09,979 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1361889401] [2022-12-14 10:44:09,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:44:09,979 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:44:10,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:44:10,206 INFO L134 CoverageAnalysis]: Checked inductivity of 1134 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 1118 trivial. 0 not checked. [2022-12-14 10:44:10,207 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:44:10,207 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1361889401] [2022-12-14 10:44:10,207 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1361889401] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:44:10,207 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:44:10,207 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 10:44:10,207 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [787494615] [2022-12-14 10:44:10,207 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:44:10,207 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 10:44:10,207 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:44:10,208 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 10:44:10,208 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 10:44:10,208 INFO L87 Difference]: Start difference. First operand 120387 states and 177468 transitions. Second operand has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (36), 3 states have call predecessors, (36), 1 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) [2022-12-14 10:44:20,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:44:20,378 INFO L93 Difference]: Finished difference Result 120393 states and 177473 transitions. [2022-12-14 10:44:20,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 10:44:20,379 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (36), 3 states have call predecessors, (36), 1 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) Word has length 258 [2022-12-14 10:44:20,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:44:20,977 INFO L225 Difference]: With dead ends: 120393 [2022-12-14 10:44:20,977 INFO L226 Difference]: Without dead ends: 120391 [2022-12-14 10:44:21,037 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 10:44:21,038 INFO L413 NwaCegarLoop]: 2625 mSDtfsCounter, 2908 mSDsluCounter, 5230 mSDsCounter, 0 mSdLazyCounter, 1073 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2912 SdHoareTripleChecker+Valid, 7855 SdHoareTripleChecker+Invalid, 1074 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1073 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2022-12-14 10:44:21,038 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2912 Valid, 7855 Invalid, 1074 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1073 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2022-12-14 10:44:21,133 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120391 states. [2022-12-14 10:44:28,990 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120391 to 120391. [2022-12-14 10:44:29,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 120391 states, 65681 states have (on average 1.28449627746228) internal successors, (84367), 71268 states have internal predecessors, (84367), 45766 states have call successors, (45766), 9106 states have call predecessors, (45766), 8941 states have return successors, (47338), 41310 states have call predecessors, (47338), 45762 states have call successors, (47338) [2022-12-14 10:44:29,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120391 states to 120391 states and 177471 transitions. [2022-12-14 10:44:29,802 INFO L78 Accepts]: Start accepts. Automaton has 120391 states and 177471 transitions. Word has length 258 [2022-12-14 10:44:29,802 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:44:29,802 INFO L495 AbstractCegarLoop]: Abstraction has 120391 states and 177471 transitions. [2022-12-14 10:44:29,802 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (36), 3 states have call predecessors, (36), 1 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) [2022-12-14 10:44:29,802 INFO L276 IsEmpty]: Start isEmpty. Operand 120391 states and 177471 transitions. [2022-12-14 10:44:29,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 259 [2022-12-14 10:44:29,820 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:44:29,820 INFO L195 NwaCegarLoop]: trace histogram [21, 15, 15, 15, 15, 15, 15, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 10:44:29,820 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-12-14 10:44:29,820 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 10:44:29,820 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:44:29,820 INFO L85 PathProgramCache]: Analyzing trace with hash -823290653, now seen corresponding path program 1 times [2022-12-14 10:44:29,821 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:44:29,821 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1172510076] [2022-12-14 10:44:29,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:44:29,821 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:44:29,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:44:30,010 INFO L134 CoverageAnalysis]: Checked inductivity of 1083 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 1068 trivial. 0 not checked. [2022-12-14 10:44:30,010 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:44:30,010 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1172510076] [2022-12-14 10:44:30,010 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1172510076] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:44:30,010 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:44:30,010 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 10:44:30,011 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1341739381] [2022-12-14 10:44:30,011 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:44:30,011 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 10:44:30,011 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:44:30,011 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 10:44:30,012 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 10:44:30,012 INFO L87 Difference]: Start difference. First operand 120391 states and 177471 transitions. Second operand has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 3 states have call successors, (35), 2 states have call predecessors, (35), 1 states have return successors, (31), 3 states have call predecessors, (31), 3 states have call successors, (31) [2022-12-14 10:44:43,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:44:43,004 INFO L93 Difference]: Finished difference Result 278837 states and 411113 transitions. [2022-12-14 10:44:43,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 10:44:43,005 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 3 states have call successors, (35), 2 states have call predecessors, (35), 1 states have return successors, (31), 3 states have call predecessors, (31), 3 states have call successors, (31) Word has length 258 [2022-12-14 10:44:43,005 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:44:43,965 INFO L225 Difference]: With dead ends: 278837 [2022-12-14 10:44:43,965 INFO L226 Difference]: Without dead ends: 159299 [2022-12-14 10:44:44,469 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 10:44:44,469 INFO L413 NwaCegarLoop]: 4546 mSDtfsCounter, 2680 mSDsluCounter, 2578 mSDsCounter, 0 mSdLazyCounter, 975 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2680 SdHoareTripleChecker+Valid, 7124 SdHoareTripleChecker+Invalid, 989 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 975 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-12-14 10:44:44,469 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2680 Valid, 7124 Invalid, 989 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 975 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-12-14 10:44:44,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 159299 states. [2022-12-14 10:44:54,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 159299 to 159207. [2022-12-14 10:44:55,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 159207 states, 86889 states have (on average 1.2840175396195146) internal successors, (111567), 94308 states have internal predecessors, (111567), 60486 states have call successors, (60486), 12046 states have call predecessors, (60486), 11829 states have return successors, (62538), 54562 states have call predecessors, (62538), 60482 states have call successors, (62538) [2022-12-14 10:44:56,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 159207 states to 159207 states and 234591 transitions. [2022-12-14 10:44:56,043 INFO L78 Accepts]: Start accepts. Automaton has 159207 states and 234591 transitions. Word has length 258 [2022-12-14 10:44:56,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:44:56,043 INFO L495 AbstractCegarLoop]: Abstraction has 159207 states and 234591 transitions. [2022-12-14 10:44:56,044 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 3 states have call successors, (35), 2 states have call predecessors, (35), 1 states have return successors, (31), 3 states have call predecessors, (31), 3 states have call successors, (31) [2022-12-14 10:44:56,044 INFO L276 IsEmpty]: Start isEmpty. Operand 159207 states and 234591 transitions. [2022-12-14 10:44:56,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-12-14 10:44:56,060 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:44:56,060 INFO L195 NwaCegarLoop]: trace histogram [19, 15, 15, 15, 15, 15, 15, 10, 9, 9, 5, 5, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 10:44:56,060 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-12-14 10:44:56,060 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-12-14 10:44:56,061 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:44:56,061 INFO L85 PathProgramCache]: Analyzing trace with hash 26723748, now seen corresponding path program 1 times [2022-12-14 10:44:56,061 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:44:56,061 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2048045939] [2022-12-14 10:44:56,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:44:56,061 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:44:56,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:44:56,417 INFO L134 CoverageAnalysis]: Checked inductivity of 1168 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 1150 trivial. 0 not checked. [2022-12-14 10:44:56,418 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:44:56,418 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2048045939] [2022-12-14 10:44:56,418 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2048045939] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:44:56,418 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:44:56,418 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 10:44:56,418 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [600828939] [2022-12-14 10:44:56,418 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:44:56,419 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 10:44:56,419 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:44:56,419 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 10:44:56,419 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 10:44:56,420 INFO L87 Difference]: Start difference. First operand 159207 states and 234591 transitions. Second operand has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (37), 3 states have call predecessors, (37), 1 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) [2022-12-14 10:45:08,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:45:08,312 INFO L93 Difference]: Finished difference Result 159213 states and 234596 transitions. [2022-12-14 10:45:08,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 10:45:08,313 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (37), 3 states have call predecessors, (37), 1 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) Word has length 263 [2022-12-14 10:45:08,314 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:45:09,325 INFO L225 Difference]: With dead ends: 159213 [2022-12-14 10:45:09,325 INFO L226 Difference]: Without dead ends: 159211 [2022-12-14 10:45:09,411 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 10:45:09,412 INFO L413 NwaCegarLoop]: 2625 mSDtfsCounter, 2908 mSDsluCounter, 5230 mSDsCounter, 0 mSdLazyCounter, 1073 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2911 SdHoareTripleChecker+Valid, 7855 SdHoareTripleChecker+Invalid, 1074 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1073 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-12-14 10:45:09,412 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2911 Valid, 7855 Invalid, 1074 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1073 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-12-14 10:45:09,540 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 159211 states. [2022-12-14 10:45:20,948 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 159211 to 159211. [2022-12-14 10:45:21,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 159211 states, 86892 states have (on average 1.284007733738434) internal successors, (111570), 94311 states have internal predecessors, (111570), 60486 states have call successors, (60486), 12047 states have call predecessors, (60486), 11830 states have return successors, (62538), 54562 states have call predecessors, (62538), 60482 states have call successors, (62538) [2022-12-14 10:45:22,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 159211 states to 159211 states and 234594 transitions. [2022-12-14 10:45:22,207 INFO L78 Accepts]: Start accepts. Automaton has 159211 states and 234594 transitions. Word has length 263 [2022-12-14 10:45:22,207 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:45:22,207 INFO L495 AbstractCegarLoop]: Abstraction has 159211 states and 234594 transitions. [2022-12-14 10:45:22,208 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (37), 3 states have call predecessors, (37), 1 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) [2022-12-14 10:45:22,208 INFO L276 IsEmpty]: Start isEmpty. Operand 159211 states and 234594 transitions. [2022-12-14 10:45:22,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 270 [2022-12-14 10:45:22,225 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:45:22,226 INFO L195 NwaCegarLoop]: trace histogram [19, 15, 15, 15, 15, 15, 15, 11, 10, 10, 5, 5, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 10:45:22,226 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-12-14 10:45:22,226 INFO L420 AbstractCegarLoop]: === Iteration 18 === 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 10:45:22,226 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:45:22,226 INFO L85 PathProgramCache]: Analyzing trace with hash -142595032, now seen corresponding path program 1 times [2022-12-14 10:45:22,226 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:45:22,226 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1271633578] [2022-12-14 10:45:22,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:45:22,227 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:45:22,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:45:22,446 INFO L134 CoverageAnalysis]: Checked inductivity of 1207 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 1187 trivial. 0 not checked. [2022-12-14 10:45:22,446 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:45:22,446 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1271633578] [2022-12-14 10:45:22,446 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1271633578] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:45:22,446 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:45:22,446 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 10:45:22,447 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [504955989] [2022-12-14 10:45:22,447 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:45:22,447 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 10:45:22,447 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:45:22,447 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 10:45:22,447 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 10:45:22,448 INFO L87 Difference]: Start difference. First operand 159211 states and 234594 transitions. Second operand has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (38), 3 states have call predecessors, (38), 1 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) [2022-12-14 10:45:35,125 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:45:35,125 INFO L93 Difference]: Finished difference Result 159217 states and 234599 transitions. [2022-12-14 10:45:35,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 10:45:35,126 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (38), 3 states have call predecessors, (38), 1 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) Word has length 269 [2022-12-14 10:45:35,126 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:45:35,914 INFO L225 Difference]: With dead ends: 159217 [2022-12-14 10:45:35,914 INFO L226 Difference]: Without dead ends: 159215 [2022-12-14 10:45:35,996 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 10:45:35,996 INFO L413 NwaCegarLoop]: 2625 mSDtfsCounter, 2908 mSDsluCounter, 5230 mSDsCounter, 0 mSdLazyCounter, 1073 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2910 SdHoareTripleChecker+Valid, 7855 SdHoareTripleChecker+Invalid, 1074 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1073 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-12-14 10:45:35,997 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2910 Valid, 7855 Invalid, 1074 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1073 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2022-12-14 10:45:36,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 159215 states. [2022-12-14 10:45:47,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 159215 to 159215. [2022-12-14 10:45:48,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 159215 states, 86895 states have (on average 1.283997928534438) internal successors, (111573), 94314 states have internal predecessors, (111573), 60486 states have call successors, (60486), 12048 states have call predecessors, (60486), 11831 states have return successors, (62538), 54562 states have call predecessors, (62538), 60482 states have call successors, (62538) [2022-12-14 10:45:49,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 159215 states to 159215 states and 234597 transitions. [2022-12-14 10:45:49,123 INFO L78 Accepts]: Start accepts. Automaton has 159215 states and 234597 transitions. Word has length 269 [2022-12-14 10:45:49,123 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:45:49,123 INFO L495 AbstractCegarLoop]: Abstraction has 159215 states and 234597 transitions. [2022-12-14 10:45:49,123 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (38), 3 states have call predecessors, (38), 1 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) [2022-12-14 10:45:49,123 INFO L276 IsEmpty]: Start isEmpty. Operand 159215 states and 234597 transitions. [2022-12-14 10:45:49,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 275 [2022-12-14 10:45:49,140 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:45:49,140 INFO L195 NwaCegarLoop]: trace histogram [19, 15, 15, 15, 15, 15, 15, 12, 11, 11, 5, 5, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 10:45:49,140 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-12-14 10:45:49,140 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-12-14 10:45:49,141 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:45:49,141 INFO L85 PathProgramCache]: Analyzing trace with hash 895224031, now seen corresponding path program 1 times [2022-12-14 10:45:49,141 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:45:49,141 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [648979081] [2022-12-14 10:45:49,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:45:49,141 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:45:49,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:45:49,357 INFO L134 CoverageAnalysis]: Checked inductivity of 1249 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 1227 trivial. 0 not checked. [2022-12-14 10:45:49,357 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:45:49,357 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [648979081] [2022-12-14 10:45:49,358 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [648979081] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:45:49,358 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:45:49,358 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 10:45:49,358 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [205230460] [2022-12-14 10:45:49,358 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:45:49,359 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 10:45:49,359 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:45:49,359 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 10:45:49,359 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 10:45:49,360 INFO L87 Difference]: Start difference. First operand 159215 states and 234597 transitions. Second operand has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (39), 3 states have call predecessors, (39), 1 states have return successors, (37), 2 states have call predecessors, (37), 2 states have call successors, (37) [2022-12-14 10:46:04,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:46:04,396 INFO L93 Difference]: Finished difference Result 159221 states and 234602 transitions. [2022-12-14 10:46:04,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 10:46:04,396 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (39), 3 states have call predecessors, (39), 1 states have return successors, (37), 2 states have call predecessors, (37), 2 states have call successors, (37) Word has length 274 [2022-12-14 10:46:04,397 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:46:05,343 INFO L225 Difference]: With dead ends: 159221 [2022-12-14 10:46:05,344 INFO L226 Difference]: Without dead ends: 159217 [2022-12-14 10:46:05,433 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 10:46:05,433 INFO L413 NwaCegarLoop]: 2625 mSDtfsCounter, 2908 mSDsluCounter, 5230 mSDsCounter, 0 mSdLazyCounter, 1073 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2909 SdHoareTripleChecker+Valid, 7855 SdHoareTripleChecker+Invalid, 1074 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1073 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2022-12-14 10:46:05,434 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2909 Valid, 7855 Invalid, 1074 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1073 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2022-12-14 10:46:05,562 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 159217 states. [2022-12-14 10:46:17,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 159217 to 159217. [2022-12-14 10:46:17,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 159217 states, 86897 states have (on average 1.283979884230756) internal successors, (111574), 94315 states have internal predecessors, (111574), 60486 states have call successors, (60486), 12049 states have call predecessors, (60486), 11831 states have return successors, (62538), 54562 states have call predecessors, (62538), 60482 states have call successors, (62538) [2022-12-14 10:46:19,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 159217 states to 159217 states and 234598 transitions. [2022-12-14 10:46:19,012 INFO L78 Accepts]: Start accepts. Automaton has 159217 states and 234598 transitions. Word has length 274 [2022-12-14 10:46:19,012 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:46:19,012 INFO L495 AbstractCegarLoop]: Abstraction has 159217 states and 234598 transitions. [2022-12-14 10:46:19,012 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (39), 3 states have call predecessors, (39), 1 states have return successors, (37), 2 states have call predecessors, (37), 2 states have call successors, (37) [2022-12-14 10:46:19,012 INFO L276 IsEmpty]: Start isEmpty. Operand 159217 states and 234598 transitions. [2022-12-14 10:46:19,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 270 [2022-12-14 10:46:19,032 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:46:19,032 INFO L195 NwaCegarLoop]: trace histogram [21, 15, 15, 15, 15, 15, 15, 5, 5, 4, 4, 4, 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] [2022-12-14 10:46:19,032 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-12-14 10:46:19,032 INFO L420 AbstractCegarLoop]: === Iteration 20 === 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 10:46:19,032 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:46:19,032 INFO L85 PathProgramCache]: Analyzing trace with hash 1969534315, now seen corresponding path program 1 times [2022-12-14 10:46:19,033 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:46:19,033 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2104479694] [2022-12-14 10:46:19,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:46:19,033 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:46:19,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:46:19,311 INFO L134 CoverageAnalysis]: Checked inductivity of 1112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1112 trivial. 0 not checked. [2022-12-14 10:46:19,311 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:46:19,311 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2104479694] [2022-12-14 10:46:19,311 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2104479694] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:46:19,311 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:46:19,311 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 10:46:19,312 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [760246973] [2022-12-14 10:46:19,312 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:46:19,312 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 10:46:19,312 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:46:19,313 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 10:46:19,313 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 10:46:19,313 INFO L87 Difference]: Start difference. First operand 159217 states and 234598 transitions. Second operand has 5 states, 5 states have (on average 14.8) internal successors, (74), 4 states have internal predecessors, (74), 2 states have call successors, (31), 3 states have call predecessors, (31), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2022-12-14 10:46:27,188 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 10:46:36,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:46:36,155 INFO L93 Difference]: Finished difference Result 184565 states and 270856 transitions. [2022-12-14 10:46:36,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 10:46:36,156 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 4 states have internal predecessors, (74), 2 states have call successors, (31), 3 states have call predecessors, (31), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) Word has length 269 [2022-12-14 10:46:36,156 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:46:37,199 INFO L225 Difference]: With dead ends: 184565 [2022-12-14 10:46:37,199 INFO L226 Difference]: Without dead ends: 184563 [2022-12-14 10:46:37,304 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 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 10:46:37,304 INFO L413 NwaCegarLoop]: 3432 mSDtfsCounter, 2593 mSDsluCounter, 8559 mSDsCounter, 0 mSdLazyCounter, 1400 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2594 SdHoareTripleChecker+Valid, 11991 SdHoareTripleChecker+Invalid, 1403 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1400 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2022-12-14 10:46:37,304 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2594 Valid, 11991 Invalid, 1403 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1400 Invalid, 1 Unknown, 0 Unchecked, 3.8s Time] [2022-12-14 10:46:37,432 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 184563 states. [2022-12-14 10:46:51,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 184563 to 184433. [2022-12-14 10:46:51,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 184433 states, 100177 states have (on average 1.2801940565199597) internal successors, (128246), 109067 states have internal predecessors, (128246), 70038 states have call successors, (70038), 14529 states have call predecessors, (70038), 14215 states have return successors, (72378), 62786 states have call predecessors, (72378), 70034 states have call successors, (72378) [2022-12-14 10:46:52,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 184433 states to 184433 states and 270662 transitions. [2022-12-14 10:46:52,951 INFO L78 Accepts]: Start accepts. Automaton has 184433 states and 270662 transitions. Word has length 269 [2022-12-14 10:46:52,952 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:46:52,952 INFO L495 AbstractCegarLoop]: Abstraction has 184433 states and 270662 transitions. [2022-12-14 10:46:52,952 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 4 states have internal predecessors, (74), 2 states have call successors, (31), 3 states have call predecessors, (31), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2022-12-14 10:46:52,952 INFO L276 IsEmpty]: Start isEmpty. Operand 184433 states and 270662 transitions. [2022-12-14 10:46:52,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 280 [2022-12-14 10:46:52,972 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:46:52,972 INFO L195 NwaCegarLoop]: trace histogram [19, 15, 15, 15, 15, 15, 15, 13, 12, 12, 5, 5, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 10:46:52,972 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-12-14 10:46:52,972 INFO L420 AbstractCegarLoop]: === Iteration 21 === 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 10:46:52,972 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:46:52,972 INFO L85 PathProgramCache]: Analyzing trace with hash 183344712, now seen corresponding path program 1 times [2022-12-14 10:46:52,972 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:46:52,973 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1853697399] [2022-12-14 10:46:52,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:46:52,973 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:46:53,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:46:53,380 INFO L134 CoverageAnalysis]: Checked inductivity of 1295 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 1271 trivial. 0 not checked. [2022-12-14 10:46:53,380 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:46:53,380 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1853697399] [2022-12-14 10:46:53,380 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1853697399] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:46:53,380 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:46:53,380 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 10:46:53,380 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1803423806] [2022-12-14 10:46:53,380 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:46:53,381 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 10:46:53,381 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:46:53,381 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 10:46:53,381 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 10:46:53,381 INFO L87 Difference]: Start difference. First operand 184433 states and 270662 transitions. Second operand has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (40), 3 states have call predecessors, (40), 1 states have return successors, (38), 2 states have call predecessors, (38), 2 states have call successors, (38) [2022-12-14 10:47:08,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:47:08,784 INFO L93 Difference]: Finished difference Result 184433 states and 270662 transitions. [2022-12-14 10:47:08,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 10:47:08,785 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (40), 3 states have call predecessors, (40), 1 states have return successors, (38), 2 states have call predecessors, (38), 2 states have call successors, (38) Word has length 279 [2022-12-14 10:47:08,785 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:47:09,775 INFO L225 Difference]: With dead ends: 184433 [2022-12-14 10:47:09,775 INFO L226 Difference]: Without dead ends: 183885 [2022-12-14 10:47:09,883 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 10:47:09,883 INFO L413 NwaCegarLoop]: 2623 mSDtfsCounter, 2904 mSDsluCounter, 5229 mSDsCounter, 0 mSdLazyCounter, 1068 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2904 SdHoareTripleChecker+Valid, 7852 SdHoareTripleChecker+Invalid, 1069 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1068 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-12-14 10:47:09,884 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2904 Valid, 7852 Invalid, 1069 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1068 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2022-12-14 10:47:10,028 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 183885 states. [2022-12-14 10:47:24,753 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 183885 to 183885. [2022-12-14 10:47:24,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 183885 states, 100058 states have (on average 1.2786084071238681) internal successors, (127935), 108756 states have internal predecessors, (127935), 69638 states have call successors, (69638), 14451 states have call predecessors, (69638), 14187 states have return successors, (71982), 62627 states have call predecessors, (71982), 69638 states have call successors, (71982) [2022-12-14 10:47:26,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 183885 states to 183885 states and 269555 transitions. [2022-12-14 10:47:26,076 INFO L78 Accepts]: Start accepts. Automaton has 183885 states and 269555 transitions. Word has length 279 [2022-12-14 10:47:26,076 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:47:26,076 INFO L495 AbstractCegarLoop]: Abstraction has 183885 states and 269555 transitions. [2022-12-14 10:47:26,076 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (40), 3 states have call predecessors, (40), 1 states have return successors, (38), 2 states have call predecessors, (38), 2 states have call successors, (38) [2022-12-14 10:47:26,076 INFO L276 IsEmpty]: Start isEmpty. Operand 183885 states and 269555 transitions. [2022-12-14 10:47:26,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 289 [2022-12-14 10:47:26,103 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:47:26,103 INFO L195 NwaCegarLoop]: trace histogram [21, 15, 15, 15, 15, 15, 15, 6, 6, 4, 4, 4, 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] [2022-12-14 10:47:26,104 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-12-14 10:47:26,104 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-12-14 10:47:26,104 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:47:26,104 INFO L85 PathProgramCache]: Analyzing trace with hash -1053612055, now seen corresponding path program 1 times [2022-12-14 10:47:26,104 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:47:26,104 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [918197227] [2022-12-14 10:47:26,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:47:26,105 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:47:26,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:47:26,519 INFO L134 CoverageAnalysis]: Checked inductivity of 1127 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1127 trivial. 0 not checked. [2022-12-14 10:47:26,520 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:47:26,520 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [918197227] [2022-12-14 10:47:26,520 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [918197227] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:47:26,520 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:47:26,520 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 10:47:26,520 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2122946942] [2022-12-14 10:47:26,520 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:47:26,521 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 10:47:26,521 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:47:26,521 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 10:47:26,521 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 10:47:26,521 INFO L87 Difference]: Start difference. First operand 183885 states and 269555 transitions. Second operand has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 2 states have call successors, (36), 3 states have call predecessors, (36), 2 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) [2022-12-14 10:47:43,462 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:47:43,462 INFO L93 Difference]: Finished difference Result 184017 states and 269685 transitions. [2022-12-14 10:47:43,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 10:47:43,463 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 2 states have call successors, (36), 3 states have call predecessors, (36), 2 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) Word has length 288 [2022-12-14 10:47:43,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:47:44,516 INFO L225 Difference]: With dead ends: 184017 [2022-12-14 10:47:44,516 INFO L226 Difference]: Without dead ends: 184015 [2022-12-14 10:47:44,655 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 10:47:44,655 INFO L413 NwaCegarLoop]: 3590 mSDtfsCounter, 1857 mSDsluCounter, 9466 mSDsCounter, 0 mSdLazyCounter, 1682 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1858 SdHoareTripleChecker+Valid, 13056 SdHoareTripleChecker+Invalid, 1683 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1682 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2022-12-14 10:47:44,655 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1858 Valid, 13056 Invalid, 1683 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1682 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2022-12-14 10:47:44,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 184015 states. [2022-12-14 10:47:59,687 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 184015 to 183885. [2022-12-14 10:47:59,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 183885 states, 100058 states have (on average 1.277968778108697) internal successors, (127871), 108756 states have internal predecessors, (127871), 69638 states have call successors, (69638), 14451 states have call predecessors, (69638), 14187 states have return successors, (71982), 62627 states have call predecessors, (71982), 69638 states have call successors, (71982) [2022-12-14 10:48:00,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 183885 states to 183885 states and 269491 transitions. [2022-12-14 10:48:00,853 INFO L78 Accepts]: Start accepts. Automaton has 183885 states and 269491 transitions. Word has length 288 [2022-12-14 10:48:00,853 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:48:00,853 INFO L495 AbstractCegarLoop]: Abstraction has 183885 states and 269491 transitions. [2022-12-14 10:48:00,854 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 2 states have call successors, (36), 3 states have call predecessors, (36), 2 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) [2022-12-14 10:48:00,854 INFO L276 IsEmpty]: Start isEmpty. Operand 183885 states and 269491 transitions. [2022-12-14 10:48:00,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 402 [2022-12-14 10:48:00,942 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:48:00,942 INFO L195 NwaCegarLoop]: trace histogram [21, 15, 15, 15, 15, 15, 15, 12, 6, 6, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 10:48:00,943 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-12-14 10:48:00,943 INFO L420 AbstractCegarLoop]: === Iteration 23 === 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 10:48:00,943 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:48:00,943 INFO L85 PathProgramCache]: Analyzing trace with hash -1908451071, now seen corresponding path program 1 times [2022-12-14 10:48:00,944 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:48:00,944 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [740760065] [2022-12-14 10:48:00,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:48:00,944 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:48:01,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:48:01,202 INFO L134 CoverageAnalysis]: Checked inductivity of 1278 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1275 trivial. 0 not checked. [2022-12-14 10:48:01,202 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:48:01,202 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [740760065] [2022-12-14 10:48:01,203 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [740760065] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:48:01,203 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:48:01,203 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 10:48:01,203 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [60171287] [2022-12-14 10:48:01,203 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:48:01,204 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 10:48:01,204 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:48:01,204 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 10:48:01,204 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 10:48:01,205 INFO L87 Difference]: Start difference. First operand 183885 states and 269491 transitions. Second operand has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 3 states have internal predecessors, (130), 2 states have call successors, (56), 2 states have call predecessors, (56), 2 states have return successors, (52), 2 states have call predecessors, (52), 2 states have call successors, (52) [2022-12-14 10:48:19,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:48:19,192 INFO L93 Difference]: Finished difference Result 369188 states and 547035 transitions. [2022-12-14 10:48:19,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 10:48:19,193 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 3 states have internal predecessors, (130), 2 states have call successors, (56), 2 states have call predecessors, (56), 2 states have return successors, (52), 2 states have call predecessors, (52), 2 states have call successors, (52) Word has length 401 [2022-12-14 10:48:19,193 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:48:20,289 INFO L225 Difference]: With dead ends: 369188 [2022-12-14 10:48:20,289 INFO L226 Difference]: Without dead ends: 185334 [2022-12-14 10:48:21,147 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 10:48:21,148 INFO L413 NwaCegarLoop]: 2580 mSDtfsCounter, 4 mSDsluCounter, 2573 mSDsCounter, 0 mSdLazyCounter, 702 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 5153 SdHoareTripleChecker+Invalid, 702 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 702 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-12-14 10:48:21,148 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 5153 Invalid, 702 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 702 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-12-14 10:48:21,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 185334 states. [2022-12-14 10:48:35,697 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 185334 to 184046. [2022-12-14 10:48:35,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 184046 states, 100219 states have (on average 1.2775222263243498) internal successors, (128032), 108917 states have internal predecessors, (128032), 69638 states have call successors, (69638), 14451 states have call predecessors, (69638), 14187 states have return successors, (71982), 62627 states have call predecessors, (71982), 69638 states have call successors, (71982) [2022-12-14 10:48:36,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 184046 states to 184046 states and 269652 transitions. [2022-12-14 10:48:36,930 INFO L78 Accepts]: Start accepts. Automaton has 184046 states and 269652 transitions. Word has length 401 [2022-12-14 10:48:36,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:48:36,931 INFO L495 AbstractCegarLoop]: Abstraction has 184046 states and 269652 transitions. [2022-12-14 10:48:36,931 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 3 states have internal predecessors, (130), 2 states have call successors, (56), 2 states have call predecessors, (56), 2 states have return successors, (52), 2 states have call predecessors, (52), 2 states have call successors, (52) [2022-12-14 10:48:36,931 INFO L276 IsEmpty]: Start isEmpty. Operand 184046 states and 269652 transitions. [2022-12-14 10:48:37,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 419 [2022-12-14 10:48:37,020 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:48:37,020 INFO L195 NwaCegarLoop]: trace histogram [21, 15, 15, 15, 15, 15, 15, 12, 6, 6, 4, 4, 4, 4, 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, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 10:48:37,020 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-12-14 10:48:37,020 INFO L420 AbstractCegarLoop]: === Iteration 24 === 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 10:48:37,020 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:48:37,021 INFO L85 PathProgramCache]: Analyzing trace with hash -1455090296, now seen corresponding path program 1 times [2022-12-14 10:48:37,021 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:48:37,021 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2025115861] [2022-12-14 10:48:37,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:48:37,021 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:48:37,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:48:37,262 INFO L134 CoverageAnalysis]: Checked inductivity of 1295 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 1291 trivial. 0 not checked. [2022-12-14 10:48:37,262 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:48:37,262 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2025115861] [2022-12-14 10:48:37,262 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2025115861] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 10:48:37,262 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [634531508] [2022-12-14 10:48:37,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:48:37,263 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 10:48:37,263 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1fd9ee9-7882-4f00-b926-c177a5512ced/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 10:48:37,264 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1fd9ee9-7882-4f00-b926-c177a5512ced/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 10:48:37,264 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1fd9ee9-7882-4f00-b926-c177a5512ced/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-14 10:48:37,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:48:37,948 INFO L263 TraceCheckSpWp]: Trace formula consists of 3692 conjuncts, 2 conjunts are in the unsatisfiable core [2022-12-14 10:48:37,959 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 10:48:37,995 INFO L134 CoverageAnalysis]: Checked inductivity of 1295 backedges. 67 proven. 0 refuted. 0 times theorem prover too weak. 1228 trivial. 0 not checked. [2022-12-14 10:48:37,995 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 10:48:37,995 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [634531508] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:48:37,995 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-14 10:48:37,995 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2022-12-14 10:48:37,996 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [335588583] [2022-12-14 10:48:37,996 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:48:37,997 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 10:48:37,997 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:48:37,998 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 10:48:37,998 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-12-14 10:48:37,998 INFO L87 Difference]: Start difference. First operand 184046 states and 269652 transitions. Second operand has 3 states, 3 states have (on average 46.666666666666664) internal successors, (140), 3 states have internal predecessors, (140), 2 states have call successors, (61), 2 states have call predecessors, (61), 2 states have return successors, (57), 2 states have call predecessors, (57), 2 states have call successors, (57) [2022-12-14 10:48:56,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:48:56,275 INFO L93 Difference]: Finished difference Result 371281 states and 550094 transitions. [2022-12-14 10:48:56,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 10:48:56,276 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 46.666666666666664) internal successors, (140), 3 states have internal predecessors, (140), 2 states have call successors, (61), 2 states have call predecessors, (61), 2 states have return successors, (57), 2 states have call predecessors, (57), 2 states have call successors, (57) Word has length 418 [2022-12-14 10:48:56,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:48:57,475 INFO L225 Difference]: With dead ends: 371281 [2022-12-14 10:48:57,476 INFO L226 Difference]: Without dead ends: 187266 [2022-12-14 10:48:58,355 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 421 GetRequests, 418 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-12-14 10:48:58,355 INFO L413 NwaCegarLoop]: 2584 mSDtfsCounter, 9 mSDsluCounter, 2570 mSDsCounter, 0 mSdLazyCounter, 705 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 5154 SdHoareTripleChecker+Invalid, 707 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 705 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-12-14 10:48:58,356 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 5154 Invalid, 707 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 705 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-12-14 10:48:58,490 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 187266 states. [2022-12-14 10:49:12,935 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 187266 to 184368. [2022-12-14 10:49:13,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 184368 states, 100541 states have (on average 1.276633413234402) internal successors, (128354), 109239 states have internal predecessors, (128354), 69638 states have call successors, (69638), 14451 states have call predecessors, (69638), 14187 states have return successors, (71982), 62627 states have call predecessors, (71982), 69638 states have call successors, (71982) [2022-12-14 10:49:14,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 184368 states to 184368 states and 269974 transitions. [2022-12-14 10:49:14,202 INFO L78 Accepts]: Start accepts. Automaton has 184368 states and 269974 transitions. Word has length 418 [2022-12-14 10:49:14,202 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:49:14,203 INFO L495 AbstractCegarLoop]: Abstraction has 184368 states and 269974 transitions. [2022-12-14 10:49:14,203 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 46.666666666666664) internal successors, (140), 3 states have internal predecessors, (140), 2 states have call successors, (61), 2 states have call predecessors, (61), 2 states have return successors, (57), 2 states have call predecessors, (57), 2 states have call successors, (57) [2022-12-14 10:49:14,203 INFO L276 IsEmpty]: Start isEmpty. Operand 184368 states and 269974 transitions. [2022-12-14 10:49:14,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 448 [2022-12-14 10:49:14,293 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:49:14,293 INFO L195 NwaCegarLoop]: trace histogram [21, 15, 15, 15, 15, 15, 15, 14, 10, 6, 6, 4, 4, 4, 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, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 10:49:14,305 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1fd9ee9-7882-4f00-b926-c177a5512ced/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-14 10:49:14,494 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1fd9ee9-7882-4f00-b926-c177a5512ced/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2022-12-14 10:49:14,495 INFO L420 AbstractCegarLoop]: === Iteration 25 === 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 10:49:14,496 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:49:14,497 INFO L85 PathProgramCache]: Analyzing trace with hash 260750536, now seen corresponding path program 1 times [2022-12-14 10:49:14,497 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:49:14,497 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [209759895] [2022-12-14 10:49:14,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:49:14,498 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:49:14,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:49:14,759 INFO L134 CoverageAnalysis]: Checked inductivity of 1433 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 1424 trivial. 0 not checked. [2022-12-14 10:49:14,759 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:49:14,759 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [209759895] [2022-12-14 10:49:14,759 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [209759895] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 10:49:14,759 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [300118625] [2022-12-14 10:49:14,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:49:14,760 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 10:49:14,760 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1fd9ee9-7882-4f00-b926-c177a5512ced/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 10:49:14,761 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1fd9ee9-7882-4f00-b926-c177a5512ced/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 10:49:14,761 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1fd9ee9-7882-4f00-b926-c177a5512ced/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-14 10:49:15,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:49:15,385 INFO L263 TraceCheckSpWp]: Trace formula consists of 3897 conjuncts, 2 conjunts are in the unsatisfiable core [2022-12-14 10:49:15,392 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 10:49:15,414 INFO L134 CoverageAnalysis]: Checked inductivity of 1433 backedges. 159 proven. 0 refuted. 0 times theorem prover too weak. 1274 trivial. 0 not checked. [2022-12-14 10:49:15,414 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 10:49:15,415 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [300118625] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:49:15,415 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-14 10:49:15,415 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2022-12-14 10:49:15,415 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [533027058] [2022-12-14 10:49:15,415 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:49:15,415 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 10:49:15,415 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:49:15,416 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 10:49:15,416 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-14 10:49:15,416 INFO L87 Difference]: Start difference. First operand 184368 states and 269974 transitions. Second operand has 3 states, 3 states have (on average 46.333333333333336) internal successors, (139), 3 states have internal predecessors, (139), 2 states have call successors, (73), 2 states have call predecessors, (73), 2 states have return successors, (67), 2 states have call predecessors, (67), 2 states have call successors, (67) [2022-12-14 10:49:32,976 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:49:32,976 INFO L93 Difference]: Finished difference Result 370154 states and 571650 transitions. [2022-12-14 10:49:32,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 10:49:32,978 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 46.333333333333336) internal successors, (139), 3 states have internal predecessors, (139), 2 states have call successors, (73), 2 states have call predecessors, (73), 2 states have return successors, (67), 2 states have call predecessors, (67), 2 states have call successors, (67) Word has length 447 [2022-12-14 10:49:32,978 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:49:34,193 INFO L225 Difference]: With dead ends: 370154 [2022-12-14 10:49:34,193 INFO L226 Difference]: Without dead ends: 185817 [2022-12-14 10:49:35,392 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 449 GetRequests, 447 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-14 10:49:35,392 INFO L413 NwaCegarLoop]: 2580 mSDtfsCounter, 4 mSDsluCounter, 2573 mSDsCounter, 0 mSdLazyCounter, 702 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 5153 SdHoareTripleChecker+Invalid, 702 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 702 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-12-14 10:49:35,393 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 5153 Invalid, 702 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 702 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-12-14 10:49:35,520 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 185817 states. [2022-12-14 10:49:50,898 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 185817 to 184529. [2022-12-14 10:49:51,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 184529 states, 100702 states have (on average 1.2761911382097675) internal successors, (128515), 109400 states have internal predecessors, (128515), 69638 states have call successors, (69638), 14451 states have call predecessors, (69638), 14187 states have return successors, (71982), 62627 states have call predecessors, (71982), 69638 states have call successors, (71982) [2022-12-14 10:49:52,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 184529 states to 184529 states and 270135 transitions. [2022-12-14 10:49:52,204 INFO L78 Accepts]: Start accepts. Automaton has 184529 states and 270135 transitions. Word has length 447 [2022-12-14 10:49:52,205 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:49:52,205 INFO L495 AbstractCegarLoop]: Abstraction has 184529 states and 270135 transitions. [2022-12-14 10:49:52,205 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 46.333333333333336) internal successors, (139), 3 states have internal predecessors, (139), 2 states have call successors, (73), 2 states have call predecessors, (73), 2 states have return successors, (67), 2 states have call predecessors, (67), 2 states have call successors, (67) [2022-12-14 10:49:52,205 INFO L276 IsEmpty]: Start isEmpty. Operand 184529 states and 270135 transitions. [2022-12-14 10:49:52,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 450 [2022-12-14 10:49:52,297 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:49:52,297 INFO L195 NwaCegarLoop]: trace histogram [21, 15, 15, 15, 15, 15, 15, 10, 7, 7, 5, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:49:52,308 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1fd9ee9-7882-4f00-b926-c177a5512ced/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-12-14 10:49:52,498 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1fd9ee9-7882-4f00-b926-c177a5512ced/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2022-12-14 10:49:52,499 INFO L420 AbstractCegarLoop]: === Iteration 26 === 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 10:49:52,500 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:49:52,500 INFO L85 PathProgramCache]: Analyzing trace with hash 1921755998, now seen corresponding path program 1 times [2022-12-14 10:49:52,501 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:49:52,501 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1909844667] [2022-12-14 10:49:52,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:49:52,502 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:49:52,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:49:52,867 INFO L134 CoverageAnalysis]: Checked inductivity of 1300 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1297 trivial. 0 not checked. [2022-12-14 10:49:52,867 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:49:52,867 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1909844667] [2022-12-14 10:49:52,867 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1909844667] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:49:52,867 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:49:52,868 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-14 10:49:52,868 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [543913714] [2022-12-14 10:49:52,868 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:49:52,869 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-14 10:49:52,869 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:49:52,869 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-14 10:49:53,096 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-12-14 10:49:53,097 INFO L87 Difference]: Start difference. First operand 184529 states and 270135 transitions. Second operand has 6 states, 6 states have (on average 24.166666666666668) internal successors, (145), 6 states have internal predecessors, (145), 4 states have call successors, (69), 2 states have call predecessors, (69), 4 states have return successors, (65), 4 states have call predecessors, (65), 4 states have call successors, (65) [2022-12-14 10:50:12,755 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:50:12,755 INFO L93 Difference]: Finished difference Result 374179 states and 560114 transitions. [2022-12-14 10:50:12,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-14 10:50:12,756 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 24.166666666666668) internal successors, (145), 6 states have internal predecessors, (145), 4 states have call successors, (69), 2 states have call predecessors, (69), 4 states have return successors, (65), 4 states have call predecessors, (65), 4 states have call successors, (65) Word has length 449 [2022-12-14 10:50:12,756 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:50:13,980 INFO L225 Difference]: With dead ends: 374179 [2022-12-14 10:50:13,980 INFO L226 Difference]: Without dead ends: 189681 [2022-12-14 10:50:14,905 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-12-14 10:50:14,905 INFO L413 NwaCegarLoop]: 2588 mSDtfsCounter, 55 mSDsluCounter, 10048 mSDsCounter, 0 mSdLazyCounter, 2126 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 12636 SdHoareTripleChecker+Invalid, 2177 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 2126 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2022-12-14 10:50:14,905 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [70 Valid, 12636 Invalid, 2177 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 2126 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2022-12-14 10:50:15,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 189681 states. [2022-12-14 10:50:30,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 189681 to 189681. [2022-12-14 10:50:30,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 189681 states, 103439 states have (on average 1.2875607846170207) internal successors, (133184), 114069 states have internal predecessors, (133184), 71731 states have call successors, (71731), 14773 states have call predecessors, (71731), 14509 states have return successors, (75428), 62788 states have call predecessors, (75428), 71731 states have call successors, (75428) [2022-12-14 10:50:31,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 189681 states to 189681 states and 280343 transitions. [2022-12-14 10:50:31,575 INFO L78 Accepts]: Start accepts. Automaton has 189681 states and 280343 transitions. Word has length 449 [2022-12-14 10:50:31,576 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:50:31,576 INFO L495 AbstractCegarLoop]: Abstraction has 189681 states and 280343 transitions. [2022-12-14 10:50:31,576 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 24.166666666666668) internal successors, (145), 6 states have internal predecessors, (145), 4 states have call successors, (69), 2 states have call predecessors, (69), 4 states have return successors, (65), 4 states have call predecessors, (65), 4 states have call successors, (65) [2022-12-14 10:50:31,576 INFO L276 IsEmpty]: Start isEmpty. Operand 189681 states and 280343 transitions. [2022-12-14 10:50:31,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 450 [2022-12-14 10:50:31,669 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:50:31,669 INFO L195 NwaCegarLoop]: trace histogram [21, 15, 15, 15, 15, 15, 15, 10, 7, 7, 5, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:50:31,669 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-12-14 10:50:31,670 INFO L420 AbstractCegarLoop]: === Iteration 27 === 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 10:50:31,670 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:50:31,670 INFO L85 PathProgramCache]: Analyzing trace with hash 591255390, now seen corresponding path program 1 times [2022-12-14 10:50:31,670 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:50:31,670 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [622925738] [2022-12-14 10:50:31,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:50:31,670 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:50:31,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:50:32,039 INFO L134 CoverageAnalysis]: Checked inductivity of 1300 backedges. 24 proven. 2 refuted. 0 times theorem prover too weak. 1274 trivial. 0 not checked. [2022-12-14 10:50:32,039 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:50:32,039 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [622925738] [2022-12-14 10:50:32,039 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [622925738] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 10:50:32,039 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1870475605] [2022-12-14 10:50:32,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:50:32,039 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 10:50:32,039 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1fd9ee9-7882-4f00-b926-c177a5512ced/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 10:50:32,040 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1fd9ee9-7882-4f00-b926-c177a5512ced/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 10:50:32,041 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1fd9ee9-7882-4f00-b926-c177a5512ced/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-12-14 10:50:32,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:50:32,761 INFO L263 TraceCheckSpWp]: Trace formula consists of 4036 conjuncts, 2 conjunts are in the unsatisfiable core [2022-12-14 10:50:32,767 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 10:50:32,790 INFO L134 CoverageAnalysis]: Checked inductivity of 1300 backedges. 73 proven. 0 refuted. 0 times theorem prover too weak. 1227 trivial. 0 not checked. [2022-12-14 10:50:32,790 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 10:50:32,791 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1870475605] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:50:32,791 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-14 10:50:32,791 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2022-12-14 10:50:32,791 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [959680840] [2022-12-14 10:50:32,791 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:50:32,791 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 10:50:32,791 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:50:32,792 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 10:50:32,792 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 10:50:32,792 INFO L87 Difference]: Start difference. First operand 189681 states and 280343 transitions. Second operand has 3 states, 3 states have (on average 50.0) internal successors, (150), 3 states have internal predecessors, (150), 2 states have call successors, (70), 2 states have call predecessors, (70), 2 states have return successors, (66), 2 states have call predecessors, (66), 2 states have call successors, (66) [2022-12-14 10:50:51,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:50:51,904 INFO L93 Difference]: Finished difference Result 379049 states and 560685 transitions. [2022-12-14 10:50:51,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 10:50:51,905 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 50.0) internal successors, (150), 3 states have internal predecessors, (150), 2 states have call successors, (70), 2 states have call predecessors, (70), 2 states have return successors, (66), 2 states have call predecessors, (66), 2 states have call successors, (66) Word has length 449 [2022-12-14 10:50:51,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:50:53,203 INFO L225 Difference]: With dead ends: 379049 [2022-12-14 10:50:53,204 INFO L226 Difference]: Without dead ends: 190257 [2022-12-14 10:50:54,084 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 453 GetRequests, 450 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 10:50:54,084 INFO L413 NwaCegarLoop]: 2577 mSDtfsCounter, 7 mSDsluCounter, 2570 mSDsCounter, 0 mSdLazyCounter, 706 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 5147 SdHoareTripleChecker+Invalid, 708 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 706 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-12-14 10:50:54,084 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 5147 Invalid, 708 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 706 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-12-14 10:50:54,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 190257 states. [2022-12-14 10:51:09,309 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 190257 to 189809. [2022-12-14 10:51:09,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 189809 states, 103567 states have (on average 1.2872053839543485) internal successors, (133312), 114197 states have internal predecessors, (133312), 71731 states have call successors, (71731), 14773 states have call predecessors, (71731), 14509 states have return successors, (75428), 62788 states have call predecessors, (75428), 71731 states have call successors, (75428) [2022-12-14 10:51:10,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 189809 states to 189809 states and 280471 transitions. [2022-12-14 10:51:10,820 INFO L78 Accepts]: Start accepts. Automaton has 189809 states and 280471 transitions. Word has length 449 [2022-12-14 10:51:10,821 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:51:10,821 INFO L495 AbstractCegarLoop]: Abstraction has 189809 states and 280471 transitions. [2022-12-14 10:51:10,821 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 50.0) internal successors, (150), 3 states have internal predecessors, (150), 2 states have call successors, (70), 2 states have call predecessors, (70), 2 states have return successors, (66), 2 states have call predecessors, (66), 2 states have call successors, (66) [2022-12-14 10:51:10,821 INFO L276 IsEmpty]: Start isEmpty. Operand 189809 states and 280471 transitions. [2022-12-14 10:51:10,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 457 [2022-12-14 10:51:10,911 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:51:10,911 INFO L195 NwaCegarLoop]: trace histogram [21, 15, 15, 15, 15, 15, 15, 12, 8, 8, 6, 6, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:51:10,922 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1fd9ee9-7882-4f00-b926-c177a5512ced/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-12-14 10:51:11,112 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1fd9ee9-7882-4f00-b926-c177a5512ced/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2022-12-14 10:51:11,113 INFO L420 AbstractCegarLoop]: === Iteration 28 === 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 10:51:11,114 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:51:11,114 INFO L85 PathProgramCache]: Analyzing trace with hash 1330099879, now seen corresponding path program 1 times [2022-12-14 10:51:11,114 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:51:11,115 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [366335450] [2022-12-14 10:51:11,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:51:11,115 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:51:11,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:51:11,416 INFO L134 CoverageAnalysis]: Checked inductivity of 1391 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 1387 trivial. 0 not checked. [2022-12-14 10:51:11,416 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:51:11,416 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [366335450] [2022-12-14 10:51:11,416 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [366335450] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 10:51:11,416 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [140610405] [2022-12-14 10:51:11,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:51:11,416 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 10:51:11,417 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1fd9ee9-7882-4f00-b926-c177a5512ced/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 10:51:11,417 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1fd9ee9-7882-4f00-b926-c177a5512ced/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 10:51:11,418 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1fd9ee9-7882-4f00-b926-c177a5512ced/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-12-14 10:51:12,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:51:12,186 INFO L263 TraceCheckSpWp]: Trace formula consists of 3815 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 10:51:12,192 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 10:51:12,238 INFO L134 CoverageAnalysis]: Checked inductivity of 1391 backedges. 105 proven. 1 refuted. 0 times theorem prover too weak. 1285 trivial. 0 not checked. [2022-12-14 10:51:12,239 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 10:51:12,566 INFO L134 CoverageAnalysis]: Checked inductivity of 1391 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 1387 trivial. 0 not checked. [2022-12-14 10:51:12,566 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [140610405] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 10:51:12,566 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1483400743] [2022-12-14 10:51:12,593 INFO L159 IcfgInterpreter]: Started Sifa with 225 locations of interest [2022-12-14 10:51:12,593 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 10:51:12,598 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 10:51:12,603 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 10:51:12,603 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs