./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-ethernet-qlogic-qla3xxx.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 38b53e6a 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_cac9c205-46d5-476a-8993-1271534358cc/bin/utaipan-ByfvJB40ur/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cac9c205-46d5-476a-8993-1271534358cc/bin/utaipan-ByfvJB40ur/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cac9c205-46d5-476a-8993-1271534358cc/bin/utaipan-ByfvJB40ur/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cac9c205-46d5-476a-8993-1271534358cc/bin/utaipan-ByfvJB40ur/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-qlogic-qla3xxx.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cac9c205-46d5-476a-8993-1271534358cc/bin/utaipan-ByfvJB40ur/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cac9c205-46d5-476a-8993-1271534358cc/bin/utaipan-ByfvJB40ur --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 5663310b82fa3e5d48c5bcacd13ac8ac886029c41a2f8f3bd2b8442c496a9447 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-38b53e6 [2022-11-26 00:11:30,914 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-26 00:11:30,916 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-26 00:11:30,954 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-26 00:11:30,955 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-26 00:11:30,959 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-26 00:11:30,961 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-26 00:11:30,964 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-26 00:11:30,966 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-26 00:11:30,971 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-26 00:11:30,972 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-26 00:11:30,973 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-26 00:11:30,973 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-26 00:11:30,974 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-26 00:11:30,975 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-26 00:11:30,976 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-26 00:11:30,977 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-26 00:11:30,978 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-26 00:11:30,980 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-26 00:11:30,982 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-26 00:11:30,986 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-26 00:11:30,988 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-26 00:11:30,990 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-26 00:11:30,991 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-26 00:11:31,007 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-26 00:11:31,008 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-26 00:11:31,008 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-26 00:11:31,010 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-26 00:11:31,011 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-26 00:11:31,012 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-26 00:11:31,012 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-26 00:11:31,013 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-26 00:11:31,015 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-26 00:11:31,016 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-26 00:11:31,017 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-26 00:11:31,018 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-26 00:11:31,018 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-26 00:11:31,019 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-26 00:11:31,019 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-26 00:11:31,020 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-26 00:11:31,021 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-26 00:11:31,022 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cac9c205-46d5-476a-8993-1271534358cc/bin/utaipan-ByfvJB40ur/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-26 00:11:31,061 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-26 00:11:31,061 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-26 00:11:31,062 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-26 00:11:31,062 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-26 00:11:31,063 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-26 00:11:31,063 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-26 00:11:31,064 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-26 00:11:31,064 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-26 00:11:31,064 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-26 00:11:31,064 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-26 00:11:31,065 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-26 00:11:31,066 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-26 00:11:31,066 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-26 00:11:31,066 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-26 00:11:31,066 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-26 00:11:31,066 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-26 00:11:31,067 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-26 00:11:31,067 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-26 00:11:31,068 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-26 00:11:31,068 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-26 00:11:31,068 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-26 00:11:31,068 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-26 00:11:31,068 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-26 00:11:31,069 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-26 00:11:31,069 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-26 00:11:31,069 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-26 00:11:31,069 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-26 00:11:31,069 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-26 00:11:31,070 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-26 00:11:31,070 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-26 00:11:31,070 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-26 00:11:31,071 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-26 00:11:31,071 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-26 00:11:31,071 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-26 00:11:31,071 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-26 00:11:31,071 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-26 00:11:31,072 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-26 00:11:31,072 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-26 00:11:31,072 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_cac9c205-46d5-476a-8993-1271534358cc/bin/utaipan-ByfvJB40ur/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cac9c205-46d5-476a-8993-1271534358cc/bin/utaipan-ByfvJB40ur Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5663310b82fa3e5d48c5bcacd13ac8ac886029c41a2f8f3bd2b8442c496a9447 [2022-11-26 00:11:31,394 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-26 00:11:31,429 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-26 00:11:31,431 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-26 00:11:31,433 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-26 00:11:31,433 INFO L275 PluginConnector]: CDTParser initialized [2022-11-26 00:11:31,434 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cac9c205-46d5-476a-8993-1271534358cc/bin/utaipan-ByfvJB40ur/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-qlogic-qla3xxx.cil.i [2022-11-26 00:11:34,554 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-26 00:11:35,277 INFO L351 CDTParser]: Found 1 translation units. [2022-11-26 00:11:35,278 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cac9c205-46d5-476a-8993-1271534358cc/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-qlogic-qla3xxx.cil.i [2022-11-26 00:11:35,340 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cac9c205-46d5-476a-8993-1271534358cc/bin/utaipan-ByfvJB40ur/data/254ef295e/4d40bcebb54043dbacc46b051c75f2f2/FLAG6e2c83052 [2022-11-26 00:11:35,359 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cac9c205-46d5-476a-8993-1271534358cc/bin/utaipan-ByfvJB40ur/data/254ef295e/4d40bcebb54043dbacc46b051c75f2f2 [2022-11-26 00:11:35,362 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-26 00:11:35,364 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-26 00:11:35,367 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-26 00:11:35,368 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-26 00:11:35,371 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-26 00:11:35,373 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:11:35" (1/1) ... [2022-11-26 00:11:35,374 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6e3a223c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:11:35, skipping insertion in model container [2022-11-26 00:11:35,374 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:11:35" (1/1) ... [2022-11-26 00:11:35,382 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-26 00:11:35,561 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-26 00:11:36,458 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock [2022-11-26 00:11:36,473 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irq [2022-11-26 00:11:36,488 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_unlock [2022-11-26 00:11:36,503 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_unlock_irq [2022-11-26 00:11:36,512 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_unlock_irqrestore [2022-11-26 00:11:36,588 WARN L623 FunctionHandler]: Unknown extern function queue_delayed_work_on [2022-11-26 00:11:36,647 WARN L623 FunctionHandler]: Unknown extern function msleep [2022-11-26 00:11:36,673 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-26 00:11:36,743 WARN L623 FunctionHandler]: Unknown extern function __phys_addr [2022-11-26 00:11:36,750 WARN L623 FunctionHandler]: Unknown extern function __phys_addr [2022-11-26 00:11:36,752 WARN L623 FunctionHandler]: Unknown extern function debug_dma_map_page [2022-11-26 00:11:36,763 WARN L623 FunctionHandler]: Unknown extern function debug_dma_unmap_page [2022-11-26 00:11:36,779 WARN L623 FunctionHandler]: Unknown extern function debug_dma_map_page [2022-11-26 00:11:36,789 WARN L623 FunctionHandler]: Unknown extern function debug_dma_unmap_page [2022-11-26 00:11:36,795 WARN L623 FunctionHandler]: Unknown extern function debug_dma_mapping_error [2022-11-26 00:11:36,833 WARN L623 FunctionHandler]: Unknown extern function debug_dma_alloc_coherent [2022-11-26 00:11:36,841 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-11-26 00:11:36,844 WARN L623 FunctionHandler]: Unknown extern function debug_dma_free_coherent [2022-11-26 00:11:36,866 WARN L623 FunctionHandler]: Unknown extern function dma_supported [2022-11-26 00:11:36,916 WARN L623 FunctionHandler]: Unknown extern function __netdev_alloc_skb [2022-11-26 00:11:36,964 WARN L623 FunctionHandler]: Unknown extern function __might_sleep [2022-11-26 00:11:36,966 WARN L623 FunctionHandler]: Unknown extern function msleep [2022-11-26 00:11:37,015 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-11-26 00:11:37,017 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:11:37,036 WARN L623 FunctionHandler]: Unknown extern function __dev_kfree_skb_irq [2022-11-26 00:11:37,086 WARN L623 FunctionHandler]: Unknown extern function pci_bus_write_config_word [2022-11-26 00:11:37,165 WARN L623 FunctionHandler]: Unknown extern function dma_set_mask [2022-11-26 00:11:37,195 WARN L623 FunctionHandler]: Unknown extern function request_threaded_irq [2022-11-26 00:11:37,279 WARN L623 FunctionHandler]: Unknown extern function netdev_printk [2022-11-26 00:11:37,282 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-11-26 00:11:37,327 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-26 00:11:37,364 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-11-26 00:11:37,365 WARN L623 FunctionHandler]: Unknown extern function consume_skb [2022-11-26 00:11:37,417 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:11:37,419 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-11-26 00:11:37,425 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-26 00:11:37,446 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-11-26 00:11:37,448 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-11-26 00:11:37,455 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-11-26 00:11:37,457 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-11-26 00:11:37,464 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-11-26 00:11:37,468 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-11-26 00:11:37,482 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-11-26 00:11:37,487 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-11-26 00:11:37,537 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-11-26 00:11:37,546 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-11-26 00:11:37,570 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-11-26 00:11:37,571 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-11-26 00:11:37,572 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-11-26 00:11:37,573 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-11-26 00:11:37,575 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-11-26 00:11:37,674 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-11-26 00:11:37,675 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-11-26 00:11:37,718 WARN L623 FunctionHandler]: Unknown extern function netdev_printk [2022-11-26 00:11:37,719 WARN L623 FunctionHandler]: Unknown extern function netdev_printk [2022-11-26 00:11:37,755 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-11-26 00:11:37,762 WARN L623 FunctionHandler]: Unknown extern function netdev_printk [2022-11-26 00:11:37,773 WARN L623 FunctionHandler]: Unknown extern function netdev_printk [2022-11-26 00:11:37,774 WARN L623 FunctionHandler]: Unknown extern function netif_carrier_on [2022-11-26 00:11:37,775 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-11-26 00:11:37,779 WARN L623 FunctionHandler]: Unknown extern function netdev_printk [2022-11-26 00:11:37,787 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-11-26 00:11:37,789 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-11-26 00:11:37,790 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-11-26 00:11:37,865 WARN L623 FunctionHandler]: Unknown extern function strlcpy [2022-11-26 00:11:37,865 WARN L623 FunctionHandler]: Unknown extern function strlcpy [2022-11-26 00:11:37,867 WARN L623 FunctionHandler]: Unknown extern function strlcpy [2022-11-26 00:11:37,894 WARN L623 FunctionHandler]: Unknown extern function netdev_printk [2022-11-26 00:11:37,896 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-11-26 00:11:37,897 WARN L623 FunctionHandler]: Unknown extern function consume_skb [2022-11-26 00:11:37,927 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-11-26 00:11:37,928 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-11-26 00:11:37,929 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-11-26 00:11:37,949 WARN L623 FunctionHandler]: Unknown extern function skb_put [2022-11-26 00:11:37,950 WARN L623 FunctionHandler]: Unknown extern function eth_type_trans [2022-11-26 00:11:37,950 WARN L623 FunctionHandler]: Unknown extern function netif_receive_skb [2022-11-26 00:11:37,957 WARN L623 FunctionHandler]: Unknown extern function skb_put [2022-11-26 00:11:37,958 WARN L623 FunctionHandler]: Unknown extern function skb_push [2022-11-26 00:11:37,958 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-11-26 00:11:37,961 WARN L623 FunctionHandler]: Unknown extern function eth_type_trans [2022-11-26 00:11:37,962 WARN L623 FunctionHandler]: Unknown extern function netif_receive_skb [2022-11-26 00:11:37,969 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-11-26 00:11:37,978 WARN L623 FunctionHandler]: Unknown extern function __napi_complete [2022-11-26 00:11:37,985 WARN L623 FunctionHandler]: Unknown extern function netif_carrier_off [2022-11-26 00:11:37,987 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-11-26 00:11:37,988 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-11-26 00:11:37,989 WARN L623 FunctionHandler]: Unknown extern function __napi_schedule [2022-11-26 00:11:38,010 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-11-26 00:11:38,012 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-11-26 00:11:38,014 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-11-26 00:11:38,030 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-11-26 00:11:38,032 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-11-26 00:11:38,034 WARN L623 FunctionHandler]: Unknown extern function netdev_printk [2022-11-26 00:11:38,049 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-11-26 00:11:38,051 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-11-26 00:11:38,057 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-11-26 00:11:38,075 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-11-26 00:11:38,078 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-11-26 00:11:38,084 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-11-26 00:11:38,085 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-26 00:11:38,094 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-11-26 00:11:38,102 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-11-26 00:11:38,109 WARN L623 FunctionHandler]: Unknown extern function consume_skb [2022-11-26 00:11:38,123 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-11-26 00:11:38,125 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-11-26 00:11:38,133 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-26 00:11:38,146 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-11-26 00:11:38,149 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-11-26 00:11:38,150 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-11-26 00:11:38,153 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-11-26 00:11:38,153 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-11-26 00:11:38,154 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-11-26 00:11:38,181 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-26 00:11:38,182 WARN L623 FunctionHandler]: Unknown extern function netif_carrier_off [2022-11-26 00:11:38,191 WARN L623 FunctionHandler]: Unknown extern function msleep [2022-11-26 00:11:38,191 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-11-26 00:11:38,200 WARN L623 FunctionHandler]: Unknown extern function netdev_printk [2022-11-26 00:11:38,203 WARN L623 FunctionHandler]: Unknown extern function netdev_printk [2022-11-26 00:11:38,205 WARN L623 FunctionHandler]: Unknown extern function netdev_printk [2022-11-26 00:11:38,217 WARN L623 FunctionHandler]: Unknown extern function netdev_printk [2022-11-26 00:11:38,226 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-11-26 00:11:38,231 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-11-26 00:11:38,235 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-11-26 00:11:38,239 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-11-26 00:11:38,240 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-11-26 00:11:38,241 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-11-26 00:11:38,248 WARN L623 FunctionHandler]: Unknown extern function netif_carrier_off [2022-11-26 00:11:38,249 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-11-26 00:11:38,250 WARN L623 FunctionHandler]: Unknown extern function pci_disable_msi [2022-11-26 00:11:38,251 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-11-26 00:11:38,252 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-11-26 00:11:38,252 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-11-26 00:11:38,259 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-11-26 00:11:38,260 WARN L623 FunctionHandler]: Unknown extern function pci_enable_msi_block [2022-11-26 00:11:38,261 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-11-26 00:11:38,261 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-11-26 00:11:38,263 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-11-26 00:11:38,264 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-11-26 00:11:38,264 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-11-26 00:11:38,265 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-11-26 00:11:38,266 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-11-26 00:11:38,267 WARN L623 FunctionHandler]: Unknown extern function pci_disable_msi [2022-11-26 00:11:38,273 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-11-26 00:11:38,274 WARN L623 FunctionHandler]: Unknown extern function rtnl_lock [2022-11-26 00:11:38,275 WARN L623 FunctionHandler]: Unknown extern function dev_close [2022-11-26 00:11:38,276 WARN L623 FunctionHandler]: Unknown extern function rtnl_unlock [2022-11-26 00:11:38,281 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-11-26 00:11:38,281 WARN L623 FunctionHandler]: Unknown extern function rtnl_lock [2022-11-26 00:11:38,282 WARN L623 FunctionHandler]: Unknown extern function dev_close [2022-11-26 00:11:38,282 WARN L623 FunctionHandler]: Unknown extern function rtnl_unlock [2022-11-26 00:11:38,288 WARN L623 FunctionHandler]: Unknown extern function msleep [2022-11-26 00:11:38,310 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-11-26 00:11:38,319 WARN L623 FunctionHandler]: Unknown extern function netdev_printk [2022-11-26 00:11:38,321 WARN L623 FunctionHandler]: Unknown extern function consume_skb [2022-11-26 00:11:38,322 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-11-26 00:11:38,332 WARN L623 FunctionHandler]: Unknown extern function netdev_printk [2022-11-26 00:11:38,333 WARN L623 FunctionHandler]: Unknown extern function netdev_printk [2022-11-26 00:11:38,334 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-11-26 00:11:38,335 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-11-26 00:11:38,364 WARN L623 FunctionHandler]: Unknown extern function pci_enable_device [2022-11-26 00:11:38,364 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:11:38,365 WARN L623 FunctionHandler]: Unknown extern function pci_request_regions [2022-11-26 00:11:38,367 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:11:38,367 WARN L623 FunctionHandler]: Unknown extern function pci_set_master [2022-11-26 00:11:38,368 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:11:38,370 WARN L623 FunctionHandler]: Unknown extern function pci_ioremap_bar [2022-11-26 00:11:38,371 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:11:38,371 WARN L623 FunctionHandler]: Unknown extern function __raw_spin_lock_init [2022-11-26 00:11:38,372 WARN L623 FunctionHandler]: Unknown extern function __raw_spin_lock_init [2022-11-26 00:11:38,373 WARN L623 FunctionHandler]: Unknown extern function netif_napi_add [2022-11-26 00:11:38,374 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:11:38,375 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:11:38,376 WARN L623 FunctionHandler]: Unknown extern function netif_carrier_off [2022-11-26 00:11:38,376 WARN L623 FunctionHandler]: Unknown extern function __alloc_workqueue_key [2022-11-26 00:11:38,377 WARN L623 FunctionHandler]: Unknown extern function __init_work [2022-11-26 00:11:38,377 WARN L623 FunctionHandler]: Unknown extern function lockdep_init_map [2022-11-26 00:11:38,378 WARN L623 FunctionHandler]: Unknown extern function init_timer_key [2022-11-26 00:11:38,379 WARN L623 FunctionHandler]: Unknown extern function __init_work [2022-11-26 00:11:38,379 WARN L623 FunctionHandler]: Unknown extern function lockdep_init_map [2022-11-26 00:11:38,380 WARN L623 FunctionHandler]: Unknown extern function init_timer_key [2022-11-26 00:11:38,380 WARN L623 FunctionHandler]: Unknown extern function __init_work [2022-11-26 00:11:38,381 WARN L623 FunctionHandler]: Unknown extern function lockdep_init_map [2022-11-26 00:11:38,381 WARN L623 FunctionHandler]: Unknown extern function init_timer_key [2022-11-26 00:11:38,382 WARN L623 FunctionHandler]: Unknown extern function init_timer_key [2022-11-26 00:11:38,383 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:11:38,383 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:11:38,384 WARN L623 FunctionHandler]: Unknown extern function iounmap [2022-11-26 00:11:38,385 WARN L623 FunctionHandler]: Unknown extern function pci_release_regions [2022-11-26 00:11:38,385 WARN L623 FunctionHandler]: Unknown extern function pci_disable_device [2022-11-26 00:11:38,392 WARN L623 FunctionHandler]: Unknown extern function cancel_delayed_work [2022-11-26 00:11:38,393 WARN L623 FunctionHandler]: Unknown extern function cancel_delayed_work [2022-11-26 00:11:38,393 WARN L623 FunctionHandler]: Unknown extern function destroy_workqueue [2022-11-26 00:11:38,393 WARN L623 FunctionHandler]: Unknown extern function iounmap [2022-11-26 00:11:38,394 WARN L623 FunctionHandler]: Unknown extern function pci_release_regions [2022-11-26 00:11:38,705 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-26 00:11:38,705 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-26 00:11:38,706 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-26 00:11:38,706 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-26 00:11:38,706 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-26 00:11:38,707 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-26 00:11:38,707 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-26 00:11:38,708 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-26 00:11:38,710 WARN L623 FunctionHandler]: Unknown extern function eth_change_mtu [2022-11-26 00:11:38,711 WARN L623 FunctionHandler]: Unknown extern function eth_validate_addr [2022-11-26 00:11:38,712 WARN L623 FunctionHandler]: Unknown extern function ethtool_op_get_link [2022-11-26 00:11:38,714 WARN L623 FunctionHandler]: Unknown extern function ldv_initialize [2022-11-26 00:11:38,717 WARN L623 FunctionHandler]: Unknown extern function ldv_switch_to_interrupt_context [2022-11-26 00:11:38,718 WARN L623 FunctionHandler]: Unknown extern function ldv_switch_to_process_context [2022-11-26 00:11:38,733 WARN L623 FunctionHandler]: Unknown extern function ldv_pre_probe [2022-11-26 00:11:38,741 WARN L623 FunctionHandler]: Unknown extern function ldv_pre_register_netdev [2022-11-26 00:11:38,748 WARN L623 FunctionHandler]: Unknown extern function ldv_switch_to_interrupt_context [2022-11-26 00:11:38,749 WARN L623 FunctionHandler]: Unknown extern function ldv_switch_to_process_context [2022-11-26 00:11:38,751 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-11-26 00:11:38,751 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-11-26 00:11:38,752 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-11-26 00:11:38,752 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-11-26 00:11:38,752 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-11-26 00:11:38,753 WARN L623 FunctionHandler]: Unknown extern function mod_timer [2022-11-26 00:11:38,753 WARN L623 FunctionHandler]: Unknown extern function mod_timer [2022-11-26 00:11:38,754 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-11-26 00:11:38,755 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-11-26 00:11:38,755 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-11-26 00:11:38,755 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-11-26 00:11:38,756 WARN L623 FunctionHandler]: Unknown extern function free_irq [2022-11-26 00:11:38,757 WARN L623 FunctionHandler]: Unknown extern function del_timer_sync [2022-11-26 00:11:38,757 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-11-26 00:11:38,758 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-11-26 00:11:38,758 WARN L623 FunctionHandler]: Unknown extern function mod_timer [2022-11-26 00:11:38,759 WARN L623 FunctionHandler]: Unknown extern function free_irq [2022-11-26 00:11:38,760 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-11-26 00:11:38,760 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-11-26 00:11:38,760 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-11-26 00:11:38,761 WARN L623 FunctionHandler]: Unknown extern function alloc_etherdev_mqs [2022-11-26 00:11:38,761 WARN L623 FunctionHandler]: Unknown extern function register_netdev [2022-11-26 00:11:38,762 WARN L623 FunctionHandler]: Unknown extern function free_netdev [2022-11-26 00:11:38,762 WARN L623 FunctionHandler]: Unknown extern function unregister_netdev [2022-11-26 00:11:38,763 WARN L623 FunctionHandler]: Unknown extern function free_netdev [2022-11-26 00:11:38,763 WARN L623 FunctionHandler]: Unknown extern function __pci_register_driver [2022-11-26 00:11:38,764 WARN L623 FunctionHandler]: Unknown extern function pci_unregister_driver [2022-11-26 00:11:38,823 WARN L623 FunctionHandler]: Unknown extern function ldv_check_alloc_flags [2022-11-26 00:11:38,824 WARN L623 FunctionHandler]: Unknown extern function ldv_after_alloc [2022-11-26 00:11:38,834 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-26 00:11:39,470 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_cac9c205-46d5-476a-8993-1271534358cc/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-qlogic-qla3xxx.cil.i[408897,408910] [2022-11-26 00:11:39,474 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_cac9c205-46d5-476a-8993-1271534358cc/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-qlogic-qla3xxx.cil.i[409066,409079] [2022-11-26 00:11:39,475 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_cac9c205-46d5-476a-8993-1271534358cc/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-qlogic-qla3xxx.cil.i[409233,409246] [2022-11-26 00:11:39,475 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_cac9c205-46d5-476a-8993-1271534358cc/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-qlogic-qla3xxx.cil.i[409401,409414] [2022-11-26 00:11:39,476 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-26 00:11:39,477 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-26 00:11:39,478 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-26 00:11:39,479 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-26 00:11:39,498 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-26 00:11:39,499 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-26 00:11:39,543 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-26 00:11:39,572 INFO L203 MainTranslator]: Completed pre-run [2022-11-26 00:11:39,665 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock [2022-11-26 00:11:39,665 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irq [2022-11-26 00:11:39,666 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_unlock [2022-11-26 00:11:39,666 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_unlock_irq [2022-11-26 00:11:39,666 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_unlock_irqrestore [2022-11-26 00:11:39,668 WARN L623 FunctionHandler]: Unknown extern function queue_delayed_work_on [2022-11-26 00:11:39,669 WARN L623 FunctionHandler]: Unknown extern function msleep [2022-11-26 00:11:39,670 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-26 00:11:39,674 WARN L623 FunctionHandler]: Unknown extern function __phys_addr [2022-11-26 00:11:39,675 WARN L623 FunctionHandler]: Unknown extern function __phys_addr [2022-11-26 00:11:39,675 WARN L623 FunctionHandler]: Unknown extern function debug_dma_map_page [2022-11-26 00:11:39,677 WARN L623 FunctionHandler]: Unknown extern function debug_dma_unmap_page [2022-11-26 00:11:39,678 WARN L623 FunctionHandler]: Unknown extern function debug_dma_map_page [2022-11-26 00:11:39,679 WARN L623 FunctionHandler]: Unknown extern function debug_dma_unmap_page [2022-11-26 00:11:39,680 WARN L623 FunctionHandler]: Unknown extern function debug_dma_mapping_error [2022-11-26 00:11:39,683 WARN L623 FunctionHandler]: Unknown extern function debug_dma_alloc_coherent [2022-11-26 00:11:39,684 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-11-26 00:11:39,684 WARN L623 FunctionHandler]: Unknown extern function debug_dma_free_coherent [2022-11-26 00:11:39,685 WARN L623 FunctionHandler]: Unknown extern function dma_supported [2022-11-26 00:11:39,688 WARN L623 FunctionHandler]: Unknown extern function __netdev_alloc_skb [2022-11-26 00:11:39,691 WARN L623 FunctionHandler]: Unknown extern function __might_sleep [2022-11-26 00:11:39,691 WARN L623 FunctionHandler]: Unknown extern function msleep [2022-11-26 00:11:39,693 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-11-26 00:11:39,694 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:11:39,695 WARN L623 FunctionHandler]: Unknown extern function __dev_kfree_skb_irq [2022-11-26 00:11:39,696 WARN L623 FunctionHandler]: Unknown extern function pci_bus_write_config_word [2022-11-26 00:11:39,701 WARN L623 FunctionHandler]: Unknown extern function dma_set_mask [2022-11-26 00:11:39,702 WARN L623 FunctionHandler]: Unknown extern function request_threaded_irq [2022-11-26 00:11:39,708 WARN L623 FunctionHandler]: Unknown extern function netdev_printk [2022-11-26 00:11:39,709 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-11-26 00:11:39,711 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-26 00:11:39,715 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-11-26 00:11:39,715 WARN L623 FunctionHandler]: Unknown extern function consume_skb [2022-11-26 00:11:39,723 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:11:39,724 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-11-26 00:11:39,725 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-26 00:11:39,728 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-11-26 00:11:39,729 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-11-26 00:11:39,730 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-11-26 00:11:39,731 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-11-26 00:11:39,732 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-11-26 00:11:39,733 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-11-26 00:11:39,734 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-11-26 00:11:39,735 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-11-26 00:11:39,739 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-11-26 00:11:39,741 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-11-26 00:11:39,745 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-11-26 00:11:39,746 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-11-26 00:11:39,747 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-11-26 00:11:39,748 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-11-26 00:11:39,749 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-11-26 00:11:39,753 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-11-26 00:11:39,754 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-11-26 00:11:39,757 WARN L623 FunctionHandler]: Unknown extern function netdev_printk [2022-11-26 00:11:39,758 WARN L623 FunctionHandler]: Unknown extern function netdev_printk [2022-11-26 00:11:39,763 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-11-26 00:11:39,765 WARN L623 FunctionHandler]: Unknown extern function netdev_printk [2022-11-26 00:11:39,766 WARN L623 FunctionHandler]: Unknown extern function netdev_printk [2022-11-26 00:11:39,766 WARN L623 FunctionHandler]: Unknown extern function netif_carrier_on [2022-11-26 00:11:39,767 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-11-26 00:11:39,768 WARN L623 FunctionHandler]: Unknown extern function netdev_printk [2022-11-26 00:11:39,770 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-11-26 00:11:39,771 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-11-26 00:11:39,772 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-11-26 00:11:39,777 WARN L623 FunctionHandler]: Unknown extern function strlcpy [2022-11-26 00:11:39,778 WARN L623 FunctionHandler]: Unknown extern function strlcpy [2022-11-26 00:11:39,778 WARN L623 FunctionHandler]: Unknown extern function strlcpy [2022-11-26 00:11:39,781 WARN L623 FunctionHandler]: Unknown extern function netdev_printk [2022-11-26 00:11:39,782 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-11-26 00:11:39,782 WARN L623 FunctionHandler]: Unknown extern function consume_skb [2022-11-26 00:11:39,786 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-11-26 00:11:39,787 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-11-26 00:11:39,788 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-11-26 00:11:39,791 WARN L623 FunctionHandler]: Unknown extern function skb_put [2022-11-26 00:11:39,792 WARN L623 FunctionHandler]: Unknown extern function eth_type_trans [2022-11-26 00:11:39,792 WARN L623 FunctionHandler]: Unknown extern function netif_receive_skb [2022-11-26 00:11:39,793 WARN L623 FunctionHandler]: Unknown extern function skb_put [2022-11-26 00:11:39,839 WARN L623 FunctionHandler]: Unknown extern function skb_push [2022-11-26 00:11:39,839 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-11-26 00:11:39,841 WARN L623 FunctionHandler]: Unknown extern function eth_type_trans [2022-11-26 00:11:39,841 WARN L623 FunctionHandler]: Unknown extern function netif_receive_skb [2022-11-26 00:11:39,844 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-11-26 00:11:39,847 WARN L623 FunctionHandler]: Unknown extern function __napi_complete [2022-11-26 00:11:39,851 WARN L623 FunctionHandler]: Unknown extern function netif_carrier_off [2022-11-26 00:11:39,851 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-11-26 00:11:39,852 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-11-26 00:11:39,853 WARN L623 FunctionHandler]: Unknown extern function __napi_schedule [2022-11-26 00:11:39,857 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-11-26 00:11:39,859 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-11-26 00:11:39,861 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-11-26 00:11:39,866 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-11-26 00:11:39,868 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-11-26 00:11:39,869 WARN L623 FunctionHandler]: Unknown extern function netdev_printk [2022-11-26 00:11:39,871 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-11-26 00:11:39,872 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-11-26 00:11:39,873 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-11-26 00:11:39,875 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-11-26 00:11:39,876 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-11-26 00:11:39,878 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-11-26 00:11:39,878 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-26 00:11:39,880 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-11-26 00:11:39,881 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-11-26 00:11:39,883 WARN L623 FunctionHandler]: Unknown extern function consume_skb [2022-11-26 00:11:39,886 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-11-26 00:11:39,895 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-11-26 00:11:39,897 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-26 00:11:39,899 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-11-26 00:11:39,901 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-11-26 00:11:39,902 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-11-26 00:11:39,902 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-11-26 00:11:39,903 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-11-26 00:11:39,903 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-11-26 00:11:39,908 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-26 00:11:39,909 WARN L623 FunctionHandler]: Unknown extern function netif_carrier_off [2022-11-26 00:11:39,915 WARN L623 FunctionHandler]: Unknown extern function msleep [2022-11-26 00:11:39,916 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-11-26 00:11:39,918 WARN L623 FunctionHandler]: Unknown extern function netdev_printk [2022-11-26 00:11:39,920 WARN L623 FunctionHandler]: Unknown extern function netdev_printk [2022-11-26 00:11:39,921 WARN L623 FunctionHandler]: Unknown extern function netdev_printk [2022-11-26 00:11:39,926 WARN L623 FunctionHandler]: Unknown extern function netdev_printk [2022-11-26 00:11:39,930 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-11-26 00:11:39,933 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-11-26 00:11:39,935 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-11-26 00:11:39,936 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-11-26 00:11:39,937 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-11-26 00:11:39,937 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-11-26 00:11:39,938 WARN L623 FunctionHandler]: Unknown extern function netif_carrier_off [2022-11-26 00:11:39,939 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-11-26 00:11:39,940 WARN L623 FunctionHandler]: Unknown extern function pci_disable_msi [2022-11-26 00:11:39,940 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-11-26 00:11:39,941 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-11-26 00:11:39,941 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-11-26 00:11:39,942 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-11-26 00:11:39,943 WARN L623 FunctionHandler]: Unknown extern function pci_enable_msi_block [2022-11-26 00:11:39,943 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-11-26 00:11:39,944 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-11-26 00:11:39,946 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-11-26 00:11:39,947 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-11-26 00:11:39,948 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-11-26 00:11:39,948 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-11-26 00:11:39,949 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-11-26 00:11:39,950 WARN L623 FunctionHandler]: Unknown extern function pci_disable_msi [2022-11-26 00:11:39,951 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-11-26 00:11:39,951 WARN L623 FunctionHandler]: Unknown extern function rtnl_lock [2022-11-26 00:11:39,952 WARN L623 FunctionHandler]: Unknown extern function dev_close [2022-11-26 00:11:39,952 WARN L623 FunctionHandler]: Unknown extern function rtnl_unlock [2022-11-26 00:11:39,953 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-11-26 00:11:39,953 WARN L623 FunctionHandler]: Unknown extern function rtnl_lock [2022-11-26 00:11:39,953 WARN L623 FunctionHandler]: Unknown extern function dev_close [2022-11-26 00:11:39,953 WARN L623 FunctionHandler]: Unknown extern function rtnl_unlock [2022-11-26 00:11:39,954 WARN L623 FunctionHandler]: Unknown extern function msleep [2022-11-26 00:11:39,958 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-11-26 00:11:39,960 WARN L623 FunctionHandler]: Unknown extern function netdev_printk [2022-11-26 00:11:39,963 WARN L623 FunctionHandler]: Unknown extern function consume_skb [2022-11-26 00:11:39,964 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-11-26 00:11:39,965 WARN L623 FunctionHandler]: Unknown extern function netdev_printk [2022-11-26 00:11:39,966 WARN L623 FunctionHandler]: Unknown extern function netdev_printk [2022-11-26 00:11:39,967 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-11-26 00:11:39,968 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-11-26 00:11:39,972 WARN L623 FunctionHandler]: Unknown extern function pci_enable_device [2022-11-26 00:11:39,973 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:11:39,973 WARN L623 FunctionHandler]: Unknown extern function pci_request_regions [2022-11-26 00:11:39,974 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:11:39,974 WARN L623 FunctionHandler]: Unknown extern function pci_set_master [2022-11-26 00:11:39,975 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:11:39,979 WARN L623 FunctionHandler]: Unknown extern function pci_ioremap_bar [2022-11-26 00:11:39,980 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:11:39,980 WARN L623 FunctionHandler]: Unknown extern function __raw_spin_lock_init [2022-11-26 00:11:39,981 WARN L623 FunctionHandler]: Unknown extern function __raw_spin_lock_init [2022-11-26 00:11:39,981 WARN L623 FunctionHandler]: Unknown extern function netif_napi_add [2022-11-26 00:11:39,982 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:11:39,983 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:11:39,984 WARN L623 FunctionHandler]: Unknown extern function netif_carrier_off [2022-11-26 00:11:39,984 WARN L623 FunctionHandler]: Unknown extern function __alloc_workqueue_key [2022-11-26 00:11:39,984 WARN L623 FunctionHandler]: Unknown extern function __init_work [2022-11-26 00:11:39,985 WARN L623 FunctionHandler]: Unknown extern function lockdep_init_map [2022-11-26 00:11:39,986 WARN L623 FunctionHandler]: Unknown extern function init_timer_key [2022-11-26 00:11:39,986 WARN L623 FunctionHandler]: Unknown extern function __init_work [2022-11-26 00:11:39,987 WARN L623 FunctionHandler]: Unknown extern function lockdep_init_map [2022-11-26 00:11:39,987 WARN L623 FunctionHandler]: Unknown extern function init_timer_key [2022-11-26 00:11:39,988 WARN L623 FunctionHandler]: Unknown extern function __init_work [2022-11-26 00:11:39,988 WARN L623 FunctionHandler]: Unknown extern function lockdep_init_map [2022-11-26 00:11:39,989 WARN L623 FunctionHandler]: Unknown extern function init_timer_key [2022-11-26 00:11:39,989 WARN L623 FunctionHandler]: Unknown extern function init_timer_key [2022-11-26 00:11:39,990 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:11:39,990 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:11:39,993 WARN L623 FunctionHandler]: Unknown extern function iounmap [2022-11-26 00:11:39,993 WARN L623 FunctionHandler]: Unknown extern function pci_release_regions [2022-11-26 00:11:39,994 WARN L623 FunctionHandler]: Unknown extern function pci_disable_device [2022-11-26 00:11:39,995 WARN L623 FunctionHandler]: Unknown extern function cancel_delayed_work [2022-11-26 00:11:39,995 WARN L623 FunctionHandler]: Unknown extern function cancel_delayed_work [2022-11-26 00:11:39,996 WARN L623 FunctionHandler]: Unknown extern function destroy_workqueue [2022-11-26 00:11:39,996 WARN L623 FunctionHandler]: Unknown extern function iounmap [2022-11-26 00:11:39,996 WARN L623 FunctionHandler]: Unknown extern function pci_release_regions [2022-11-26 00:11:40,003 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-26 00:11:40,004 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-26 00:11:40,004 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-26 00:11:40,004 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-26 00:11:40,004 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-26 00:11:40,005 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-26 00:11:40,005 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-26 00:11:40,005 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-26 00:11:40,008 WARN L623 FunctionHandler]: Unknown extern function eth_change_mtu [2022-11-26 00:11:40,009 WARN L623 FunctionHandler]: Unknown extern function eth_validate_addr [2022-11-26 00:11:40,010 WARN L623 FunctionHandler]: Unknown extern function ethtool_op_get_link [2022-11-26 00:11:40,011 WARN L623 FunctionHandler]: Unknown extern function ldv_initialize [2022-11-26 00:11:40,018 WARN L623 FunctionHandler]: Unknown extern function ldv_switch_to_interrupt_context [2022-11-26 00:11:40,019 WARN L623 FunctionHandler]: Unknown extern function ldv_switch_to_process_context [2022-11-26 00:11:40,027 WARN L623 FunctionHandler]: Unknown extern function ldv_pre_probe [2022-11-26 00:11:40,029 WARN L623 FunctionHandler]: Unknown extern function ldv_pre_register_netdev [2022-11-26 00:11:40,040 WARN L623 FunctionHandler]: Unknown extern function ldv_switch_to_interrupt_context [2022-11-26 00:11:40,040 WARN L623 FunctionHandler]: Unknown extern function ldv_switch_to_process_context [2022-11-26 00:11:40,049 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-11-26 00:11:40,050 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-11-26 00:11:40,050 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-11-26 00:11:40,050 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-11-26 00:11:40,050 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-11-26 00:11:40,051 WARN L623 FunctionHandler]: Unknown extern function mod_timer [2022-11-26 00:11:40,052 WARN L623 FunctionHandler]: Unknown extern function mod_timer [2022-11-26 00:11:40,052 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-11-26 00:11:40,053 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-11-26 00:11:40,053 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-11-26 00:11:40,053 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-11-26 00:11:40,054 WARN L623 FunctionHandler]: Unknown extern function free_irq [2022-11-26 00:11:40,055 WARN L623 FunctionHandler]: Unknown extern function del_timer_sync [2022-11-26 00:11:40,055 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-11-26 00:11:40,057 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-11-26 00:11:40,058 WARN L623 FunctionHandler]: Unknown extern function mod_timer [2022-11-26 00:11:40,058 WARN L623 FunctionHandler]: Unknown extern function free_irq [2022-11-26 00:11:40,059 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-11-26 00:11:40,059 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-11-26 00:11:40,059 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-11-26 00:11:40,060 WARN L623 FunctionHandler]: Unknown extern function alloc_etherdev_mqs [2022-11-26 00:11:40,060 WARN L623 FunctionHandler]: Unknown extern function register_netdev [2022-11-26 00:11:40,061 WARN L623 FunctionHandler]: Unknown extern function free_netdev [2022-11-26 00:11:40,061 WARN L623 FunctionHandler]: Unknown extern function unregister_netdev [2022-11-26 00:11:40,061 WARN L623 FunctionHandler]: Unknown extern function free_netdev [2022-11-26 00:11:40,062 WARN L623 FunctionHandler]: Unknown extern function __pci_register_driver [2022-11-26 00:11:40,063 WARN L623 FunctionHandler]: Unknown extern function pci_unregister_driver [2022-11-26 00:11:40,066 WARN L623 FunctionHandler]: Unknown extern function ldv_check_alloc_flags [2022-11-26 00:11:40,067 WARN L623 FunctionHandler]: Unknown extern function ldv_after_alloc [2022-11-26 00:11:40,067 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-26 00:11:40,096 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_cac9c205-46d5-476a-8993-1271534358cc/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-qlogic-qla3xxx.cil.i[408897,408910] [2022-11-26 00:11:40,096 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_cac9c205-46d5-476a-8993-1271534358cc/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-qlogic-qla3xxx.cil.i[409066,409079] [2022-11-26 00:11:40,097 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_cac9c205-46d5-476a-8993-1271534358cc/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-qlogic-qla3xxx.cil.i[409233,409246] [2022-11-26 00:11:40,097 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_cac9c205-46d5-476a-8993-1271534358cc/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-qlogic-qla3xxx.cil.i[409401,409414] [2022-11-26 00:11:40,097 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-26 00:11:40,099 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-26 00:11:40,103 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-26 00:11:40,105 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-26 00:11:40,108 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-26 00:11:40,110 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-26 00:11:40,111 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-26 00:11:40,349 INFO L208 MainTranslator]: Completed translation [2022-11-26 00:11:40,350 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:11:40 WrapperNode [2022-11-26 00:11:40,350 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-26 00:11:40,351 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-26 00:11:40,351 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-26 00:11:40,352 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-26 00:11:40,359 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:11:40" (1/1) ... [2022-11-26 00:11:40,477 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:11:40" (1/1) ... [2022-11-26 00:11:40,769 INFO L138 Inliner]: procedures = 572, calls = 2987, calls flagged for inlining = 287, calls inlined = 255, statements flattened = 6576 [2022-11-26 00:11:40,769 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-26 00:11:40,770 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-26 00:11:40,770 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-26 00:11:40,770 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-26 00:11:40,780 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:11:40" (1/1) ... [2022-11-26 00:11:40,780 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:11:40" (1/1) ... [2022-11-26 00:11:40,814 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:11:40" (1/1) ... [2022-11-26 00:11:40,814 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:11:40" (1/1) ... [2022-11-26 00:11:40,944 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:11:40" (1/1) ... [2022-11-26 00:11:40,990 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:11:40" (1/1) ... [2022-11-26 00:11:41,027 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:11:40" (1/1) ... [2022-11-26 00:11:41,054 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:11:40" (1/1) ... [2022-11-26 00:11:41,101 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-26 00:11:41,102 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-26 00:11:41,102 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-26 00:11:41,102 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-26 00:11:41,103 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:11:40" (1/1) ... [2022-11-26 00:11:41,109 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-26 00:11:41,121 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cac9c205-46d5-476a-8993-1271534358cc/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:11:41,140 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cac9c205-46d5-476a-8993-1271534358cc/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-26 00:11:41,163 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cac9c205-46d5-476a-8993-1271534358cc/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-26 00:11:41,180 INFO L130 BoogieDeclarations]: Found specification of procedure ql_get_link_speed [2022-11-26 00:11:41,181 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_get_link_speed [2022-11-26 00:11:41,181 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_hw_lock_of_ql3_adapter [2022-11-26 00:11:41,181 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_hw_lock_of_ql3_adapter [2022-11-26 00:11:41,181 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2022-11-26 00:11:41,181 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2022-11-26 00:11:41,181 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-11-26 00:11:41,181 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-11-26 00:11:41,181 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_alloc_skb [2022-11-26 00:11:41,181 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_alloc_skb [2022-11-26 00:11:41,181 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_page [2022-11-26 00:11:41,182 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_page [2022-11-26 00:11:41,182 INFO L130 BoogieDeclarations]: Found specification of procedure ql3xxx_close [2022-11-26 00:11:41,182 INFO L138 BoogieDeclarations]: Found implementation of procedure ql3xxx_close [2022-11-26 00:11:41,182 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-26 00:11:41,182 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-26 00:11:41,182 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2022-11-26 00:11:41,182 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2022-11-26 00:11:41,182 INFO L130 BoogieDeclarations]: Found specification of procedure cancel_delayed_work [2022-11-26 00:11:41,182 INFO L138 BoogieDeclarations]: Found implementation of procedure cancel_delayed_work [2022-11-26 00:11:41,183 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-11-26 00:11:41,183 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-11-26 00:11:41,183 INFO L130 BoogieDeclarations]: Found specification of procedure ql_this_adapter_controls_port [2022-11-26 00:11:41,183 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_this_adapter_controls_port [2022-11-26 00:11:41,183 INFO L130 BoogieDeclarations]: Found specification of procedure ql_enable_interrupts [2022-11-26 00:11:41,183 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_enable_interrupts [2022-11-26 00:11:41,183 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2022-11-26 00:11:41,183 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2022-11-26 00:11:41,183 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2022-11-26 00:11:41,183 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2022-11-26 00:11:41,184 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_61 [2022-11-26 00:11:41,184 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_61 [2022-11-26 00:11:41,184 INFO L130 BoogieDeclarations]: Found specification of procedure ql_read_common_reg_l [2022-11-26 00:11:41,184 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_read_common_reg_l [2022-11-26 00:11:41,184 INFO L130 BoogieDeclarations]: Found specification of procedure ql_free_send_free_list [2022-11-26 00:11:41,184 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_free_send_free_list [2022-11-26 00:11:41,185 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2022-11-26 00:11:41,185 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2022-11-26 00:11:41,185 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-11-26 00:11:41,185 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-11-26 00:11:41,185 INFO L130 BoogieDeclarations]: Found specification of procedure ssleep [2022-11-26 00:11:41,185 INFO L138 BoogieDeclarations]: Found implementation of procedure ssleep [2022-11-26 00:11:41,185 INFO L130 BoogieDeclarations]: Found specification of procedure ql_cycle_adapter [2022-11-26 00:11:41,185 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_cycle_adapter [2022-11-26 00:11:41,185 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-11-26 00:11:41,185 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-11-26 00:11:41,186 INFO L130 BoogieDeclarations]: Found specification of procedure ql_mac_cfg_soft_reset [2022-11-26 00:11:41,186 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_mac_cfg_soft_reset [2022-11-26 00:11:41,186 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2022-11-26 00:11:41,186 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2022-11-26 00:11:41,186 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2022-11-26 00:11:41,186 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2022-11-26 00:11:41,186 INFO L130 BoogieDeclarations]: Found specification of procedure ql_mii_disable_scan_mode [2022-11-26 00:11:41,186 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_mii_disable_scan_mode [2022-11-26 00:11:41,186 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2022-11-26 00:11:41,187 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2022-11-26 00:11:41,187 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-11-26 00:11:41,187 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-11-26 00:11:41,187 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2022-11-26 00:11:41,187 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2022-11-26 00:11:41,187 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-26 00:11:41,187 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2022-11-26 00:11:41,187 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2022-11-26 00:11:41,187 INFO L130 BoogieDeclarations]: Found specification of procedure ql_read_page0_reg_l [2022-11-26 00:11:41,187 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_read_page0_reg_l [2022-11-26 00:11:41,188 INFO L130 BoogieDeclarations]: Found specification of procedure ql_adapter_up [2022-11-26 00:11:41,188 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_adapter_up [2022-11-26 00:11:41,188 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-11-26 00:11:41,188 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-11-26 00:11:41,188 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_consistent_dma_mask [2022-11-26 00:11:41,188 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_consistent_dma_mask [2022-11-26 00:11:41,188 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-11-26 00:11:41,188 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-11-26 00:11:41,188 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-11-26 00:11:41,188 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2022-11-26 00:11:41,189 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2022-11-26 00:11:41,189 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-26 00:11:41,189 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-11-26 00:11:41,189 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-11-26 00:11:41,189 INFO L130 BoogieDeclarations]: Found specification of procedure ql_write_page1_reg [2022-11-26 00:11:41,189 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_write_page1_reg [2022-11-26 00:11:41,189 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-26 00:11:41,189 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2022-11-26 00:11:41,189 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2022-11-26 00:11:41,189 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-26 00:11:41,190 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-26 00:11:41,190 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2022-11-26 00:11:41,190 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2022-11-26 00:11:41,190 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2022-11-26 00:11:41,190 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2022-11-26 00:11:41,190 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2022-11-26 00:11:41,190 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2022-11-26 00:11:41,190 INFO L130 BoogieDeclarations]: Found specification of procedure dev_close [2022-11-26 00:11:41,190 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_close [2022-11-26 00:11:41,191 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_dma_mask [2022-11-26 00:11:41,191 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_dma_mask [2022-11-26 00:11:41,191 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_hw_lock_of_ql3_adapter [2022-11-26 00:11:41,191 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_hw_lock_of_ql3_adapter [2022-11-26 00:11:41,191 INFO L130 BoogieDeclarations]: Found specification of procedure ql_set_register_page [2022-11-26 00:11:41,191 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_set_register_page [2022-11-26 00:11:41,191 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2022-11-26 00:11:41,191 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2022-11-26 00:11:41,191 INFO L130 BoogieDeclarations]: Found specification of procedure ql_mii_read_reg_ex [2022-11-26 00:11:41,191 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_mii_read_reg_ex [2022-11-26 00:11:41,192 INFO L130 BoogieDeclarations]: Found specification of procedure ql_phy_init_ex [2022-11-26 00:11:41,192 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_phy_init_ex [2022-11-26 00:11:41,192 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2022-11-26 00:11:41,192 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2022-11-26 00:11:41,192 INFO L130 BoogieDeclarations]: Found specification of procedure ql_write_common_reg_l [2022-11-26 00:11:41,192 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_write_common_reg_l [2022-11-26 00:11:41,192 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-26 00:11:41,192 INFO L130 BoogieDeclarations]: Found specification of procedure ql_write_common_reg [2022-11-26 00:11:41,192 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_write_common_reg [2022-11-26 00:11:41,192 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2022-11-26 00:11:41,193 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2022-11-26 00:11:41,193 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2022-11-26 00:11:41,193 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2022-11-26 00:11:41,193 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer [2022-11-26 00:11:41,193 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer [2022-11-26 00:11:41,193 INFO L130 BoogieDeclarations]: Found specification of procedure ql_sem_spinlock [2022-11-26 00:11:41,194 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_sem_spinlock [2022-11-26 00:11:41,194 INFO L130 BoogieDeclarations]: Found specification of procedure ql_write_page2_reg [2022-11-26 00:11:41,194 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_write_page2_reg [2022-11-26 00:11:41,194 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-26 00:11:41,194 INFO L130 BoogieDeclarations]: Found specification of procedure ql_read_common_reg [2022-11-26 00:11:41,195 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_read_common_reg [2022-11-26 00:11:41,195 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-11-26 00:11:41,195 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-11-26 00:11:41,195 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-11-26 00:11:41,195 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-11-26 00:11:41,195 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-26 00:11:41,195 INFO L130 BoogieDeclarations]: Found specification of procedure ql_mii_read_reg [2022-11-26 00:11:41,195 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_mii_read_reg [2022-11-26 00:11:41,195 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-11-26 00:11:41,195 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-11-26 00:11:41,195 INFO L130 BoogieDeclarations]: Found specification of procedure ql_sem_unlock [2022-11-26 00:11:41,196 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_sem_unlock [2022-11-26 00:11:41,196 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2022-11-26 00:11:41,196 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2022-11-26 00:11:41,196 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2022-11-26 00:11:41,196 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2022-11-26 00:11:41,196 INFO L130 BoogieDeclarations]: Found specification of procedure ql_write_nvram_reg [2022-11-26 00:11:41,196 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_write_nvram_reg [2022-11-26 00:11:41,196 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2022-11-26 00:11:41,196 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2022-11-26 00:11:41,197 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2022-11-26 00:11:41,197 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2022-11-26 00:11:41,197 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_map_page [2022-11-26 00:11:41,197 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_map_page [2022-11-26 00:11:41,197 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-11-26 00:11:41,197 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-11-26 00:11:41,197 INFO L130 BoogieDeclarations]: Found specification of procedure ql_wait_for_drvr_lock [2022-11-26 00:11:41,197 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_wait_for_drvr_lock [2022-11-26 00:11:41,197 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2022-11-26 00:11:41,197 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2022-11-26 00:11:41,198 INFO L130 BoogieDeclarations]: Found specification of procedure skb_frag_size [2022-11-26 00:11:41,198 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_frag_size [2022-11-26 00:11:41,198 INFO L130 BoogieDeclarations]: Found specification of procedure ql_mii_enable_scan_mode [2022-11-26 00:11:41,198 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_mii_enable_scan_mode [2022-11-26 00:11:41,198 INFO L130 BoogieDeclarations]: Found specification of procedure queue_delayed_work [2022-11-26 00:11:41,198 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_delayed_work [2022-11-26 00:11:41,198 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2022-11-26 00:11:41,198 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2022-11-26 00:11:41,198 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2022-11-26 00:11:41,198 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2022-11-26 00:11:41,198 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-26 00:11:41,199 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-26 00:11:41,199 INFO L130 BoogieDeclarations]: Found specification of procedure ql_wait_for_mii_ready [2022-11-26 00:11:41,199 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_wait_for_mii_ready [2022-11-26 00:11:41,199 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2022-11-26 00:11:41,199 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2022-11-26 00:11:41,199 INFO L130 BoogieDeclarations]: Found specification of procedure ql_free_large_buffers [2022-11-26 00:11:41,199 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_free_large_buffers [2022-11-26 00:11:41,199 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-26 00:11:41,199 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-26 00:11:41,200 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-26 00:11:41,200 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-26 00:11:41,200 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~$Pointer$~TO~~dma_addr_t~0 [2022-11-26 00:11:41,200 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~$Pointer$~TO~~dma_addr_t~0 [2022-11-26 00:11:41,200 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-11-26 00:11:41,200 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-11-26 00:11:41,200 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2022-11-26 00:11:41,200 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2022-11-26 00:11:41,200 INFO L130 BoogieDeclarations]: Found specification of procedure ql_disable_interrupts [2022-11-26 00:11:41,200 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_disable_interrupts [2022-11-26 00:11:41,201 INFO L130 BoogieDeclarations]: Found specification of procedure rtnl_unlock [2022-11-26 00:11:41,201 INFO L138 BoogieDeclarations]: Found implementation of procedure rtnl_unlock [2022-11-26 00:11:41,201 INFO L130 BoogieDeclarations]: Found specification of procedure kmemcheck_mark_initialized [2022-11-26 00:11:41,201 INFO L138 BoogieDeclarations]: Found implementation of procedure kmemcheck_mark_initialized [2022-11-26 00:11:41,201 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2022-11-26 00:11:41,201 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2022-11-26 00:11:41,201 INFO L130 BoogieDeclarations]: Found specification of procedure ql_read_page0_reg [2022-11-26 00:11:41,201 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_read_page0_reg [2022-11-26 00:11:41,201 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2022-11-26 00:11:41,201 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2022-11-26 00:11:41,202 INFO L130 BoogieDeclarations]: Found specification of procedure PHY_Setup [2022-11-26 00:11:41,202 INFO L138 BoogieDeclarations]: Found implementation of procedure PHY_Setup [2022-11-26 00:11:41,202 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-26 00:11:41,204 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-26 00:11:41,204 INFO L130 BoogieDeclarations]: Found specification of procedure ql_free_buffer_queues [2022-11-26 00:11:41,204 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_free_buffer_queues [2022-11-26 00:11:41,204 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2022-11-26 00:11:41,204 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2022-11-26 00:11:41,204 INFO L130 BoogieDeclarations]: Found specification of procedure pci_alloc_consistent [2022-11-26 00:11:41,204 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_alloc_consistent [2022-11-26 00:11:41,205 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_unmap_page [2022-11-26 00:11:41,205 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_unmap_page [2022-11-26 00:11:41,205 INFO L130 BoogieDeclarations]: Found specification of procedure ql3xxx_remove [2022-11-26 00:11:41,205 INFO L138 BoogieDeclarations]: Found implementation of procedure ql3xxx_remove [2022-11-26 00:11:41,205 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2022-11-26 00:11:41,205 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2022-11-26 00:11:41,205 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2022-11-26 00:11:41,205 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2022-11-26 00:11:41,205 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-26 00:11:41,205 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-11-26 00:11:41,206 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-11-26 00:11:41,206 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-26 00:11:41,206 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-26 00:11:41,206 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2022-11-26 00:11:41,206 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2022-11-26 00:11:41,206 INFO L130 BoogieDeclarations]: Found specification of procedure dma_mapping_error [2022-11-26 00:11:41,206 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_mapping_error [2022-11-26 00:11:41,206 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-11-26 00:11:41,206 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-11-26 00:11:41,207 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-11-26 00:11:41,207 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-11-26 00:11:41,207 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2022-11-26 00:11:41,207 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2022-11-26 00:11:41,207 INFO L130 BoogieDeclarations]: Found specification of procedure ql_write_page0_reg [2022-11-26 00:11:41,207 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_write_page0_reg [2022-11-26 00:11:41,207 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq [2022-11-26 00:11:41,207 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq [2022-11-26 00:11:41,207 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reserve [2022-11-26 00:11:41,207 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reserve [2022-11-26 00:11:41,208 INFO L130 BoogieDeclarations]: Found specification of procedure ql_is_link_full_dup [2022-11-26 00:11:41,208 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_is_link_full_dup [2022-11-26 00:11:41,208 INFO L130 BoogieDeclarations]: Found specification of procedure ql3xxx_open [2022-11-26 00:11:41,208 INFO L138 BoogieDeclarations]: Found implementation of procedure ql3xxx_open [2022-11-26 00:11:41,208 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-11-26 00:11:41,208 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-11-26 00:11:41,208 INFO L130 BoogieDeclarations]: Found specification of procedure ql3xxx_tx_timeout [2022-11-26 00:11:41,208 INFO L138 BoogieDeclarations]: Found implementation of procedure ql3xxx_tx_timeout [2022-11-26 00:11:41,208 INFO L130 BoogieDeclarations]: Found specification of procedure ql_supported_modes [2022-11-26 00:11:41,208 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_supported_modes [2022-11-26 00:11:41,209 INFO L130 BoogieDeclarations]: Found specification of procedure pci_dma_mapping_error [2022-11-26 00:11:41,209 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_dma_mapping_error [2022-11-26 00:11:41,209 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-11-26 00:11:41,209 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-11-26 00:11:41,209 INFO L130 BoogieDeclarations]: Found specification of procedure ql_is_fiber [2022-11-26 00:11:41,209 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_is_fiber [2022-11-26 00:11:41,209 INFO L130 BoogieDeclarations]: Found specification of procedure skb_network_header [2022-11-26 00:11:41,209 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_network_header [2022-11-26 00:11:41,209 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-26 00:11:41,209 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-26 00:11:41,210 INFO L130 BoogieDeclarations]: Found specification of procedure ql_free_net_req_rsp_queues [2022-11-26 00:11:41,210 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_free_net_req_rsp_queues [2022-11-26 00:11:41,210 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-26 00:11:41,210 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-26 00:11:41,210 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-26 00:11:41,210 INFO L130 BoogieDeclarations]: Found specification of procedure ql_mii_write_reg_ex [2022-11-26 00:11:41,210 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_mii_write_reg_ex [2022-11-26 00:11:41,210 INFO L130 BoogieDeclarations]: Found specification of procedure ql_adapter_down [2022-11-26 00:11:41,210 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_adapter_down [2022-11-26 00:11:41,210 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2022-11-26 00:11:41,211 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2022-11-26 00:11:41,211 INFO L130 BoogieDeclarations]: Found specification of procedure ql_port_start [2022-11-26 00:11:41,271 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_port_start [2022-11-26 00:11:41,271 INFO L130 BoogieDeclarations]: Found specification of procedure rtnl_lock [2022-11-26 00:11:41,271 INFO L138 BoogieDeclarations]: Found implementation of procedure rtnl_lock [2022-11-26 00:11:41,271 INFO L130 BoogieDeclarations]: Found specification of procedure ql_get_auto_cfg_status [2022-11-26 00:11:41,271 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_get_auto_cfg_status [2022-11-26 00:11:41,271 INFO L130 BoogieDeclarations]: Found specification of procedure ql_mii_write_reg [2022-11-26 00:11:41,271 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_mii_write_reg [2022-11-26 00:11:41,271 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-11-26 00:11:41,271 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-11-26 00:11:41,271 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~X~$Pointer$~TO~VOID [2022-11-26 00:11:41,271 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~X~$Pointer$~TO~VOID [2022-11-26 00:11:41,271 INFO L130 BoogieDeclarations]: Found specification of procedure init_timer_key [2022-11-26 00:11:41,271 INFO L138 BoogieDeclarations]: Found implementation of procedure init_timer_key [2022-11-26 00:11:41,271 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_msi [2022-11-26 00:11:41,271 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_msi [2022-11-26 00:11:41,271 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2022-11-26 00:11:41,271 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2022-11-26 00:11:41,271 INFO L130 BoogieDeclarations]: Found specification of procedure delayed_work_timer_fn [2022-11-26 00:11:41,271 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-26 00:11:41,272 INFO L130 BoogieDeclarations]: Found specification of procedure ql_set_mac_addr [2022-11-26 00:11:41,272 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_set_mac_addr [2022-11-26 00:11:41,272 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2022-11-26 00:11:41,272 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2022-11-26 00:11:42,341 INFO L235 CfgBuilder]: Building ICFG [2022-11-26 00:11:42,350 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-26 00:11:42,663 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-26 00:11:47,804 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2022-11-26 00:11:48,083 INFO L276 CfgBuilder]: Performing block encoding [2022-11-26 00:11:50,098 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-26 00:11:50,098 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-26 00:11:50,103 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:11:50 BoogieIcfgContainer [2022-11-26 00:11:50,104 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-26 00:11:50,107 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-26 00:11:50,107 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-26 00:11:50,110 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-26 00:11:50,111 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 12:11:35" (1/3) ... [2022-11-26 00:11:50,112 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ba5196 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:11:50, skipping insertion in model container [2022-11-26 00:11:50,112 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:11:40" (2/3) ... [2022-11-26 00:11:50,112 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ba5196 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:11:50, skipping insertion in model container [2022-11-26 00:11:50,112 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:11:50" (3/3) ... [2022-11-26 00:11:50,114 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-qlogic-qla3xxx.cil.i [2022-11-26 00:11:50,136 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-26 00:11:50,137 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2022-11-26 00:11:50,243 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-26 00:11:50,250 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;@2da6c088, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-26 00:11:50,250 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-11-26 00:11:50,262 INFO L276 IsEmpty]: Start isEmpty. Operand has 1940 states, 1088 states have (on average 1.255514705882353) internal successors, (1366), 1139 states have internal predecessors, (1366), 714 states have call successors, (714), 136 states have call predecessors, (714), 135 states have return successors, (709), 694 states have call predecessors, (709), 709 states have call successors, (709) [2022-11-26 00:11:50,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-11-26 00:11:50,278 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:11:50,279 INFO L195 NwaCegarLoop]: trace histogram [9, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:11:50,279 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)] === [2022-11-26 00:11:50,285 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:11:50,285 INFO L85 PathProgramCache]: Analyzing trace with hash 641487453, now seen corresponding path program 1 times [2022-11-26 00:11:50,295 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:11:50,296 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [555089460] [2022-11-26 00:11:50,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:11:50,297 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:11:50,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:11:51,143 INFO L134 CoverageAnalysis]: Checked inductivity of 240 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 240 trivial. 0 not checked. [2022-11-26 00:11:51,144 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:11:51,144 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [555089460] [2022-11-26 00:11:51,145 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [555089460] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:11:51,145 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:11:51,145 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-26 00:11:51,147 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1577342865] [2022-11-26 00:11:51,148 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:11:51,152 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-26 00:11:51,152 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:11:51,189 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-26 00:11:51,190 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:11:51,196 INFO L87 Difference]: Start difference. First operand has 1940 states, 1088 states have (on average 1.255514705882353) internal successors, (1366), 1139 states have internal predecessors, (1366), 714 states have call successors, (714), 136 states have call predecessors, (714), 135 states have return successors, (709), 694 states have call predecessors, (709), 709 states have call successors, (709) Second operand has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 3 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2022-11-26 00:11:54,816 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:11:54,816 INFO L93 Difference]: Finished difference Result 5726 states and 8386 transitions. [2022-11-26 00:11:54,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-26 00:11:54,819 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 3 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 97 [2022-11-26 00:11:54,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:11:54,858 INFO L225 Difference]: With dead ends: 5726 [2022-11-26 00:11:54,859 INFO L226 Difference]: Without dead ends: 3793 [2022-11-26 00:11:54,876 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:11:54,880 INFO L413 NwaCegarLoop]: 3154 mSDtfsCounter, 2700 mSDsluCounter, 2443 mSDsCounter, 0 mSdLazyCounter, 634 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2700 SdHoareTripleChecker+Valid, 5597 SdHoareTripleChecker+Invalid, 637 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 634 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2022-11-26 00:11:54,881 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2700 Valid, 5597 Invalid, 637 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3 Valid, 634 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2022-11-26 00:11:54,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3793 states. [2022-11-26 00:11:55,217 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3793 to 3789. [2022-11-26 00:11:55,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3789 states, 2135 states have (on average 1.2515222482435597) internal successors, (2672), 2235 states have internal predecessors, (2672), 1384 states have call successors, (1384), 268 states have call predecessors, (1384), 267 states have return successors, (1381), 1351 states have call predecessors, (1381), 1381 states have call successors, (1381) [2022-11-26 00:11:55,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3789 states to 3789 states and 5437 transitions. [2022-11-26 00:11:55,271 INFO L78 Accepts]: Start accepts. Automaton has 3789 states and 5437 transitions. Word has length 97 [2022-11-26 00:11:55,272 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:11:55,272 INFO L495 AbstractCegarLoop]: Abstraction has 3789 states and 5437 transitions. [2022-11-26 00:11:55,273 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 3 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2022-11-26 00:11:55,273 INFO L276 IsEmpty]: Start isEmpty. Operand 3789 states and 5437 transitions. [2022-11-26 00:11:55,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2022-11-26 00:11:55,284 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:11:55,285 INFO L195 NwaCegarLoop]: trace histogram [9, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:11:55,285 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-26 00:11:55,286 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)] === [2022-11-26 00:11:55,286 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:11:55,286 INFO L85 PathProgramCache]: Analyzing trace with hash -260210707, now seen corresponding path program 1 times [2022-11-26 00:11:55,287 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:11:55,287 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [173608793] [2022-11-26 00:11:55,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:11:55,287 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:11:55,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:11:56,094 INFO L134 CoverageAnalysis]: Checked inductivity of 240 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 240 trivial. 0 not checked. [2022-11-26 00:11:56,095 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:11:56,095 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [173608793] [2022-11-26 00:11:56,095 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [173608793] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:11:56,095 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:11:56,095 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-26 00:11:56,096 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [202444133] [2022-11-26 00:11:56,096 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:11:56,097 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-26 00:11:56,097 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:11:56,098 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-26 00:11:56,098 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-11-26 00:11:56,099 INFO L87 Difference]: Start difference. First operand 3789 states and 5437 transitions. Second operand has 6 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 3 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-11-26 00:12:04,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:12:04,928 INFO L93 Difference]: Finished difference Result 8368 states and 11879 transitions. [2022-11-26 00:12:04,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-26 00:12:04,929 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 3 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 102 [2022-11-26 00:12:04,930 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:12:04,961 INFO L225 Difference]: With dead ends: 8368 [2022-11-26 00:12:04,961 INFO L226 Difference]: Without dead ends: 4596 [2022-11-26 00:12:04,980 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-11-26 00:12:04,981 INFO L413 NwaCegarLoop]: 3433 mSDtfsCounter, 4652 mSDsluCounter, 5520 mSDsCounter, 0 mSdLazyCounter, 3104 mSolverCounterSat, 1295 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4760 SdHoareTripleChecker+Valid, 8953 SdHoareTripleChecker+Invalid, 4399 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1295 IncrementalHoareTripleChecker+Valid, 3104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.2s IncrementalHoareTripleChecker+Time [2022-11-26 00:12:04,982 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4760 Valid, 8953 Invalid, 4399 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1295 Valid, 3104 Invalid, 0 Unknown, 0 Unchecked, 8.2s Time] [2022-11-26 00:12:04,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4596 states. [2022-11-26 00:12:05,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4596 to 4542. [2022-11-26 00:12:05,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4542 states, 2578 states have (on average 1.2428238944918542) internal successors, (3204), 2678 states have internal predecessors, (3204), 1581 states have call successors, (1581), 381 states have call predecessors, (1581), 380 states have return successors, (1578), 1554 states have call predecessors, (1578), 1578 states have call successors, (1578) [2022-11-26 00:12:05,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4542 states to 4542 states and 6363 transitions. [2022-11-26 00:12:05,240 INFO L78 Accepts]: Start accepts. Automaton has 4542 states and 6363 transitions. Word has length 102 [2022-11-26 00:12:05,241 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:12:05,241 INFO L495 AbstractCegarLoop]: Abstraction has 4542 states and 6363 transitions. [2022-11-26 00:12:05,242 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 3 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-11-26 00:12:05,242 INFO L276 IsEmpty]: Start isEmpty. Operand 4542 states and 6363 transitions. [2022-11-26 00:12:05,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2022-11-26 00:12:05,246 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:12:05,246 INFO L195 NwaCegarLoop]: trace histogram [9, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:12:05,246 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-26 00:12:05,246 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-26 00:12:05,247 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:12:05,247 INFO L85 PathProgramCache]: Analyzing trace with hash 1501622619, now seen corresponding path program 1 times [2022-11-26 00:12:05,247 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:12:05,248 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1223389374] [2022-11-26 00:12:05,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:12:05,248 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:12:05,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:12:05,573 INFO L134 CoverageAnalysis]: Checked inductivity of 240 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 240 trivial. 0 not checked. [2022-11-26 00:12:05,574 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:12:05,574 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1223389374] [2022-11-26 00:12:05,574 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1223389374] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:12:05,575 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:12:05,575 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-26 00:12:05,575 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1732568830] [2022-11-26 00:12:05,575 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:12:05,581 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-26 00:12:05,582 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:12:05,583 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-26 00:12:05,583 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:12:05,583 INFO L87 Difference]: Start difference. First operand 4542 states and 6363 transitions. Second operand has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 3 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2022-11-26 00:12:09,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:12:09,239 INFO L93 Difference]: Finished difference Result 12310 states and 17263 transitions. [2022-11-26 00:12:09,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-26 00:12:09,240 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 3 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 105 [2022-11-26 00:12:09,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:12:09,314 INFO L225 Difference]: With dead ends: 12310 [2022-11-26 00:12:09,315 INFO L226 Difference]: Without dead ends: 7785 [2022-11-26 00:12:09,345 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:12:09,350 INFO L413 NwaCegarLoop]: 3378 mSDtfsCounter, 2672 mSDsluCounter, 2296 mSDsCounter, 0 mSdLazyCounter, 644 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2672 SdHoareTripleChecker+Valid, 5674 SdHoareTripleChecker+Invalid, 649 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 644 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2022-11-26 00:12:09,352 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2672 Valid, 5674 Invalid, 649 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 644 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2022-11-26 00:12:09,364 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7785 states. [2022-11-26 00:12:09,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7785 to 7756. [2022-11-26 00:12:09,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7756 states, 4408 states have (on average 1.243421052631579) internal successors, (5481), 4587 states have internal predecessors, (5481), 2689 states have call successors, (2689), 664 states have call predecessors, (2689), 656 states have return successors, (2705), 2625 states have call predecessors, (2705), 2686 states have call successors, (2705) [2022-11-26 00:12:09,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7756 states to 7756 states and 10875 transitions. [2022-11-26 00:12:09,872 INFO L78 Accepts]: Start accepts. Automaton has 7756 states and 10875 transitions. Word has length 105 [2022-11-26 00:12:09,872 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:12:09,872 INFO L495 AbstractCegarLoop]: Abstraction has 7756 states and 10875 transitions. [2022-11-26 00:12:09,873 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 3 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2022-11-26 00:12:09,874 INFO L276 IsEmpty]: Start isEmpty. Operand 7756 states and 10875 transitions. [2022-11-26 00:12:09,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-11-26 00:12:09,876 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:12:09,876 INFO L195 NwaCegarLoop]: trace histogram [9, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:12:09,876 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-26 00:12:09,876 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-26 00:12:09,877 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:12:09,877 INFO L85 PathProgramCache]: Analyzing trace with hash -298117230, now seen corresponding path program 1 times [2022-11-26 00:12:09,877 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:12:09,877 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1881526704] [2022-11-26 00:12:09,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:12:09,878 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:12:09,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:12:10,150 INFO L134 CoverageAnalysis]: Checked inductivity of 240 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 240 trivial. 0 not checked. [2022-11-26 00:12:10,151 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:12:10,151 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1881526704] [2022-11-26 00:12:10,151 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1881526704] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:12:10,151 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:12:10,151 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-26 00:12:10,152 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1511625104] [2022-11-26 00:12:10,152 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:12:10,152 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-26 00:12:10,153 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:12:10,153 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-26 00:12:10,156 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:12:10,156 INFO L87 Difference]: Start difference. First operand 7756 states and 10875 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, (16), 2 states have call predecessors, (16), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2022-11-26 00:12:13,109 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:12:13,110 INFO L93 Difference]: Finished difference Result 20270 states and 28479 transitions. [2022-11-26 00:12:13,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-26 00:12:13,111 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, (16), 2 states have call predecessors, (16), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) Word has length 117 [2022-11-26 00:12:13,111 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:12:13,209 INFO L225 Difference]: With dead ends: 20270 [2022-11-26 00:12:13,210 INFO L226 Difference]: Without dead ends: 12531 [2022-11-26 00:12:13,251 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:12:13,252 INFO L413 NwaCegarLoop]: 3073 mSDtfsCounter, 2399 mSDsluCounter, 2407 mSDsCounter, 0 mSdLazyCounter, 652 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2399 SdHoareTripleChecker+Valid, 5480 SdHoareTripleChecker+Invalid, 659 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 652 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-11-26 00:12:13,252 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2399 Valid, 5480 Invalid, 659 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 652 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2022-11-26 00:12:13,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12531 states. [2022-11-26 00:12:13,990 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12531 to 12501. [2022-11-26 00:12:14,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12501 states, 7075 states have (on average 1.2364664310954063) internal successors, (8748), 7418 states have internal predecessors, (8748), 4385 states have call successors, (4385), 1055 states have call predecessors, (4385), 1038 states have return successors, (4422), 4253 states have call predecessors, (4422), 4382 states have call successors, (4422) [2022-11-26 00:12:14,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12501 states to 12501 states and 17555 transitions. [2022-11-26 00:12:14,081 INFO L78 Accepts]: Start accepts. Automaton has 12501 states and 17555 transitions. Word has length 117 [2022-11-26 00:12:14,081 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:12:14,082 INFO L495 AbstractCegarLoop]: Abstraction has 12501 states and 17555 transitions. [2022-11-26 00:12:14,082 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, (16), 2 states have call predecessors, (16), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2022-11-26 00:12:14,082 INFO L276 IsEmpty]: Start isEmpty. Operand 12501 states and 17555 transitions. [2022-11-26 00:12:14,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-11-26 00:12:14,083 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:12:14,084 INFO L195 NwaCegarLoop]: trace histogram [12, 8, 8, 8, 8, 8, 8, 4, 4, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:12:14,084 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-26 00:12:14,084 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-26 00:12:14,084 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:12:14,085 INFO L85 PathProgramCache]: Analyzing trace with hash 678363291, now seen corresponding path program 1 times [2022-11-26 00:12:14,085 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:12:14,085 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1959656042] [2022-11-26 00:12:14,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:12:14,085 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:12:14,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:12:14,557 INFO L134 CoverageAnalysis]: Checked inductivity of 323 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 323 trivial. 0 not checked. [2022-11-26 00:12:14,557 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:12:14,557 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1959656042] [2022-11-26 00:12:14,557 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1959656042] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:12:14,558 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:12:14,558 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-26 00:12:14,558 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [255318791] [2022-11-26 00:12:14,558 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:12:14,559 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-26 00:12:14,559 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:12:14,559 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-26 00:12:14,560 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-26 00:12:14,560 INFO L87 Difference]: Start difference. First operand 12501 states and 17555 transitions. Second operand has 5 states, 5 states have (on average 7.0) internal successors, (35), 4 states have internal predecessors, (35), 2 states have call successors, (19), 3 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-11-26 00:12:18,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:12:18,203 INFO L93 Difference]: Finished difference Result 12507 states and 17560 transitions. [2022-11-26 00:12:18,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-26 00:12:18,204 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.0) internal successors, (35), 4 states have internal predecessors, (35), 2 states have call successors, (19), 3 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 135 [2022-11-26 00:12:18,205 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:12:18,275 INFO L225 Difference]: With dead ends: 12507 [2022-11-26 00:12:18,275 INFO L226 Difference]: Without dead ends: 12505 [2022-11-26 00:12:18,285 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-26 00:12:18,286 INFO L413 NwaCegarLoop]: 2450 mSDtfsCounter, 2725 mSDsluCounter, 4886 mSDsCounter, 0 mSdLazyCounter, 962 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2737 SdHoareTripleChecker+Valid, 7336 SdHoareTripleChecker+Invalid, 963 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 962 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2022-11-26 00:12:18,286 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2737 Valid, 7336 Invalid, 963 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 962 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2022-11-26 00:12:18,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12505 states. [2022-11-26 00:12:19,208 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12505 to 12505. [2022-11-26 00:12:19,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12505 states, 7078 states have (on average 1.2363662051426956) internal successors, (8751), 7421 states have internal predecessors, (8751), 4385 states have call successors, (4385), 1056 states have call predecessors, (4385), 1039 states have return successors, (4422), 4253 states have call predecessors, (4422), 4382 states have call successors, (4422) [2022-11-26 00:12:19,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12505 states to 12505 states and 17558 transitions. [2022-11-26 00:12:19,293 INFO L78 Accepts]: Start accepts. Automaton has 12505 states and 17558 transitions. Word has length 135 [2022-11-26 00:12:19,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:12:19,294 INFO L495 AbstractCegarLoop]: Abstraction has 12505 states and 17558 transitions. [2022-11-26 00:12:19,294 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.0) internal successors, (35), 4 states have internal predecessors, (35), 2 states have call successors, (19), 3 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-11-26 00:12:19,295 INFO L276 IsEmpty]: Start isEmpty. Operand 12505 states and 17558 transitions. [2022-11-26 00:12:19,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2022-11-26 00:12:19,300 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:12:19,301 INFO L195 NwaCegarLoop]: trace histogram [12, 8, 8, 8, 8, 8, 8, 4, 4, 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] [2022-11-26 00:12:19,301 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-26 00:12:19,301 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-26 00:12:19,301 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:12:19,302 INFO L85 PathProgramCache]: Analyzing trace with hash -491414898, now seen corresponding path program 1 times [2022-11-26 00:12:19,302 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:12:19,302 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1412530052] [2022-11-26 00:12:19,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:12:19,302 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:12:19,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:12:19,797 INFO L134 CoverageAnalysis]: Checked inductivity of 325 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 323 trivial. 0 not checked. [2022-11-26 00:12:19,798 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:12:19,798 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1412530052] [2022-11-26 00:12:19,798 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1412530052] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:12:19,798 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:12:19,798 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-26 00:12:19,799 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [908554572] [2022-11-26 00:12:19,799 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:12:19,799 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-26 00:12:19,799 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:12:19,800 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-26 00:12:19,800 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-26 00:12:19,800 INFO L87 Difference]: Start difference. First operand 12505 states and 17558 transitions. Second operand has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (20), 3 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-11-26 00:12:23,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:12:23,458 INFO L93 Difference]: Finished difference Result 12947 states and 18023 transitions. [2022-11-26 00:12:23,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-26 00:12:23,459 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (20), 3 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 140 [2022-11-26 00:12:23,459 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:12:23,525 INFO L225 Difference]: With dead ends: 12947 [2022-11-26 00:12:23,525 INFO L226 Difference]: Without dead ends: 12945 [2022-11-26 00:12:23,535 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-26 00:12:23,536 INFO L413 NwaCegarLoop]: 2486 mSDtfsCounter, 2689 mSDsluCounter, 5059 mSDsCounter, 0 mSdLazyCounter, 982 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2700 SdHoareTripleChecker+Valid, 7545 SdHoareTripleChecker+Invalid, 984 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 982 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2022-11-26 00:12:23,536 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2700 Valid, 7545 Invalid, 984 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 982 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2022-11-26 00:12:23,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12945 states. [2022-11-26 00:12:24,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12945 to 12941. [2022-11-26 00:12:24,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12941 states, 7293 states have (on average 1.2326888797477034) internal successors, (8990), 7648 states have internal predecessors, (8990), 4496 states have call successors, (4496), 1166 states have call predecessors, (4496), 1149 states have return successors, (4533), 4364 states have call predecessors, (4533), 4493 states have call successors, (4533) [2022-11-26 00:12:24,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12941 states to 12941 states and 18019 transitions. [2022-11-26 00:12:24,506 INFO L78 Accepts]: Start accepts. Automaton has 12941 states and 18019 transitions. Word has length 140 [2022-11-26 00:12:24,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:12:24,506 INFO L495 AbstractCegarLoop]: Abstraction has 12941 states and 18019 transitions. [2022-11-26 00:12:24,507 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (20), 3 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-11-26 00:12:24,507 INFO L276 IsEmpty]: Start isEmpty. Operand 12941 states and 18019 transitions. [2022-11-26 00:12:24,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2022-11-26 00:12:24,510 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:12:24,510 INFO L195 NwaCegarLoop]: trace histogram [12, 8, 8, 8, 8, 8, 8, 6, 6, 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] [2022-11-26 00:12:24,511 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-26 00:12:24,511 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-26 00:12:24,511 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:12:24,511 INFO L85 PathProgramCache]: Analyzing trace with hash -205480488, now seen corresponding path program 1 times [2022-11-26 00:12:24,512 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:12:24,512 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [943831770] [2022-11-26 00:12:24,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:12:24,512 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:12:24,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:12:24,954 INFO L134 CoverageAnalysis]: Checked inductivity of 357 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 353 trivial. 0 not checked. [2022-11-26 00:12:24,955 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:12:24,955 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [943831770] [2022-11-26 00:12:24,955 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [943831770] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:12:24,955 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:12:24,955 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-26 00:12:24,956 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1835601710] [2022-11-26 00:12:24,956 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:12:24,956 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-26 00:12:24,956 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:12:24,957 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-26 00:12:24,958 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-26 00:12:24,958 INFO L87 Difference]: Start difference. First operand 12941 states and 18019 transitions. Second operand has 5 states, 5 states have (on average 8.0) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (23), 3 states have call predecessors, (23), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-11-26 00:12:29,216 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:12:29,216 INFO L93 Difference]: Finished difference Result 12947 states and 18024 transitions. [2022-11-26 00:12:29,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-26 00:12:29,217 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.0) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (23), 3 states have call predecessors, (23), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 154 [2022-11-26 00:12:29,217 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:12:29,282 INFO L225 Difference]: With dead ends: 12947 [2022-11-26 00:12:29,283 INFO L226 Difference]: Without dead ends: 12945 [2022-11-26 00:12:29,292 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-26 00:12:29,293 INFO L413 NwaCegarLoop]: 2453 mSDtfsCounter, 2716 mSDsluCounter, 4886 mSDsCounter, 0 mSdLazyCounter, 962 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2726 SdHoareTripleChecker+Valid, 7339 SdHoareTripleChecker+Invalid, 963 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 962 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2022-11-26 00:12:29,294 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2726 Valid, 7339 Invalid, 963 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 962 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2022-11-26 00:12:29,307 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12945 states. [2022-11-26 00:12:30,337 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12945 to 12945. [2022-11-26 00:12:30,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12945 states, 7296 states have (on average 1.232593201754386) internal successors, (8993), 7651 states have internal predecessors, (8993), 4496 states have call successors, (4496), 1167 states have call predecessors, (4496), 1150 states have return successors, (4533), 4364 states have call predecessors, (4533), 4493 states have call successors, (4533) [2022-11-26 00:12:30,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12945 states to 12945 states and 18022 transitions. [2022-11-26 00:12:30,420 INFO L78 Accepts]: Start accepts. Automaton has 12945 states and 18022 transitions. Word has length 154 [2022-11-26 00:12:30,421 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:12:30,421 INFO L495 AbstractCegarLoop]: Abstraction has 12945 states and 18022 transitions. [2022-11-26 00:12:30,421 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.0) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (23), 3 states have call predecessors, (23), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-11-26 00:12:30,421 INFO L276 IsEmpty]: Start isEmpty. Operand 12945 states and 18022 transitions. [2022-11-26 00:12:30,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2022-11-26 00:12:30,424 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:12:30,424 INFO L195 NwaCegarLoop]: trace histogram [12, 8, 8, 8, 8, 8, 8, 6, 6, 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] [2022-11-26 00:12:30,424 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-26 00:12:30,425 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-26 00:12:30,425 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:12:30,425 INFO L85 PathProgramCache]: Analyzing trace with hash -751834383, now seen corresponding path program 1 times [2022-11-26 00:12:30,425 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:12:30,425 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1813850262] [2022-11-26 00:12:30,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:12:30,426 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:12:30,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:12:30,834 INFO L134 CoverageAnalysis]: Checked inductivity of 367 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 361 trivial. 0 not checked. [2022-11-26 00:12:30,835 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:12:30,835 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1813850262] [2022-11-26 00:12:30,835 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1813850262] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:12:30,835 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:12:30,835 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-26 00:12:30,836 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1302502488] [2022-11-26 00:12:30,836 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:12:30,836 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-26 00:12:30,836 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:12:30,837 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-26 00:12:30,837 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-26 00:12:30,837 INFO L87 Difference]: Start difference. First operand 12945 states and 18022 transitions. Second operand has 5 states, 5 states have (on average 8.0) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (24), 3 states have call predecessors, (24), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2022-11-26 00:12:35,522 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:12:35,522 INFO L93 Difference]: Finished difference Result 12951 states and 18027 transitions. [2022-11-26 00:12:35,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-26 00:12:35,523 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.0) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (24), 3 states have call predecessors, (24), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 159 [2022-11-26 00:12:35,526 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:12:35,591 INFO L225 Difference]: With dead ends: 12951 [2022-11-26 00:12:35,591 INFO L226 Difference]: Without dead ends: 12949 [2022-11-26 00:12:35,601 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-26 00:12:35,603 INFO L413 NwaCegarLoop]: 2453 mSDtfsCounter, 2716 mSDsluCounter, 4886 mSDsCounter, 0 mSdLazyCounter, 962 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2725 SdHoareTripleChecker+Valid, 7339 SdHoareTripleChecker+Invalid, 963 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 962 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2022-11-26 00:12:35,603 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2725 Valid, 7339 Invalid, 963 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 962 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2022-11-26 00:12:35,616 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12949 states. [2022-11-26 00:12:36,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12949 to 12949. [2022-11-26 00:12:36,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12949 states, 7299 states have (on average 1.2324976024112893) internal successors, (8996), 7654 states have internal predecessors, (8996), 4496 states have call successors, (4496), 1168 states have call predecessors, (4496), 1151 states have return successors, (4533), 4364 states have call predecessors, (4533), 4493 states have call successors, (4533) [2022-11-26 00:12:36,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12949 states to 12949 states and 18025 transitions. [2022-11-26 00:12:36,593 INFO L78 Accepts]: Start accepts. Automaton has 12949 states and 18025 transitions. Word has length 159 [2022-11-26 00:12:36,593 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:12:36,593 INFO L495 AbstractCegarLoop]: Abstraction has 12949 states and 18025 transitions. [2022-11-26 00:12:36,594 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.0) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (24), 3 states have call predecessors, (24), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2022-11-26 00:12:36,594 INFO L276 IsEmpty]: Start isEmpty. Operand 12949 states and 18025 transitions. [2022-11-26 00:12:36,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2022-11-26 00:12:36,599 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:12:36,599 INFO L195 NwaCegarLoop]: trace histogram [12, 8, 8, 8, 8, 8, 8, 5, 4, 4, 4, 4, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:12:36,599 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-26 00:12:36,600 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-26 00:12:36,600 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:12:36,600 INFO L85 PathProgramCache]: Analyzing trace with hash 218912731, now seen corresponding path program 1 times [2022-11-26 00:12:36,600 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:12:36,601 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [505295207] [2022-11-26 00:12:36,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:12:36,601 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:12:36,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:12:36,988 INFO L134 CoverageAnalysis]: Checked inductivity of 355 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 347 trivial. 0 not checked. [2022-11-26 00:12:36,988 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:12:36,988 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [505295207] [2022-11-26 00:12:36,988 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [505295207] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:12:36,988 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:12:36,989 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-26 00:12:36,989 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [546455213] [2022-11-26 00:12:36,989 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:12:36,990 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-26 00:12:36,990 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:12:36,991 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-26 00:12:36,991 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-26 00:12:36,991 INFO L87 Difference]: Start difference. First operand 12949 states and 18025 transitions. Second operand has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (23), 3 states have call predecessors, (23), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-11-26 00:12:41,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:12:41,230 INFO L93 Difference]: Finished difference Result 13256 states and 18277 transitions. [2022-11-26 00:12:41,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-26 00:12:41,231 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (23), 3 states have call predecessors, (23), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 155 [2022-11-26 00:12:41,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:12:41,299 INFO L225 Difference]: With dead ends: 13256 [2022-11-26 00:12:41,300 INFO L226 Difference]: Without dead ends: 13254 [2022-11-26 00:12:41,311 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-26 00:12:41,311 INFO L413 NwaCegarLoop]: 2474 mSDtfsCounter, 1612 mSDsluCounter, 5981 mSDsCounter, 0 mSdLazyCounter, 1061 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1620 SdHoareTripleChecker+Valid, 8455 SdHoareTripleChecker+Invalid, 1063 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1061 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2022-11-26 00:12:41,312 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1620 Valid, 8455 Invalid, 1063 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1061 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2022-11-26 00:12:41,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13254 states. [2022-11-26 00:12:42,386 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13254 to 13252. [2022-11-26 00:12:42,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13252 states, 7462 states have (on average 1.2292950951487538) internal successors, (9173), 7825 states have internal predecessors, (9173), 4532 states have call successors, (4532), 1272 states have call predecessors, (4532), 1255 states have return successors, (4569), 4400 states have call predecessors, (4569), 4529 states have call successors, (4569) [2022-11-26 00:12:42,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13252 states to 13252 states and 18274 transitions. [2022-11-26 00:12:42,443 INFO L78 Accepts]: Start accepts. Automaton has 13252 states and 18274 transitions. Word has length 155 [2022-11-26 00:12:42,444 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:12:42,444 INFO L495 AbstractCegarLoop]: Abstraction has 13252 states and 18274 transitions. [2022-11-26 00:12:42,444 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (23), 3 states have call predecessors, (23), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-11-26 00:12:42,444 INFO L276 IsEmpty]: Start isEmpty. Operand 13252 states and 18274 transitions. [2022-11-26 00:12:42,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2022-11-26 00:12:42,447 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:12:42,448 INFO L195 NwaCegarLoop]: trace histogram [12, 8, 8, 8, 8, 8, 8, 6, 5, 5, 4, 4, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:12:42,448 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-26 00:12:42,448 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-26 00:12:42,448 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:12:42,449 INFO L85 PathProgramCache]: Analyzing trace with hash 998320718, now seen corresponding path program 1 times [2022-11-26 00:12:42,449 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:12:42,449 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1141142601] [2022-11-26 00:12:42,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:12:42,449 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:12:42,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:12:42,839 INFO L134 CoverageAnalysis]: Checked inductivity of 373 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 363 trivial. 0 not checked. [2022-11-26 00:12:42,839 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:12:42,840 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1141142601] [2022-11-26 00:12:42,840 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1141142601] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:12:42,840 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:12:42,840 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-26 00:12:42,840 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [819886504] [2022-11-26 00:12:42,841 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:12:42,841 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-26 00:12:42,841 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:12:42,842 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-26 00:12:42,842 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-26 00:12:42,842 INFO L87 Difference]: Start difference. First operand 13252 states and 18274 transitions. Second operand has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (24), 3 states have call predecessors, (24), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2022-11-26 00:12:46,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:12:46,895 INFO L93 Difference]: Finished difference Result 13258 states and 18279 transitions. [2022-11-26 00:12:46,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-26 00:12:46,896 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (24), 3 states have call predecessors, (24), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 160 [2022-11-26 00:12:46,896 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:12:46,957 INFO L225 Difference]: With dead ends: 13258 [2022-11-26 00:12:46,958 INFO L226 Difference]: Without dead ends: 13256 [2022-11-26 00:12:46,969 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-26 00:12:46,969 INFO L413 NwaCegarLoop]: 2453 mSDtfsCounter, 2720 mSDsluCounter, 4886 mSDsCounter, 0 mSdLazyCounter, 962 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2727 SdHoareTripleChecker+Valid, 7339 SdHoareTripleChecker+Invalid, 963 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 962 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2022-11-26 00:12:46,970 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2727 Valid, 7339 Invalid, 963 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 962 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2022-11-26 00:12:46,985 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13256 states. [2022-11-26 00:12:47,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13256 to 13256. [2022-11-26 00:12:47,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13256 states, 7465 states have (on average 1.2292029470864032) internal successors, (9176), 7828 states have internal predecessors, (9176), 4532 states have call successors, (4532), 1273 states have call predecessors, (4532), 1256 states have return successors, (4569), 4400 states have call predecessors, (4569), 4529 states have call successors, (4569) [2022-11-26 00:12:47,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13256 states to 13256 states and 18277 transitions. [2022-11-26 00:12:47,963 INFO L78 Accepts]: Start accepts. Automaton has 13256 states and 18277 transitions. Word has length 160 [2022-11-26 00:12:47,963 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:12:47,964 INFO L495 AbstractCegarLoop]: Abstraction has 13256 states and 18277 transitions. [2022-11-26 00:12:47,964 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (24), 3 states have call predecessors, (24), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2022-11-26 00:12:47,964 INFO L276 IsEmpty]: Start isEmpty. Operand 13256 states and 18277 transitions. [2022-11-26 00:12:47,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2022-11-26 00:12:47,967 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:12:47,968 INFO L195 NwaCegarLoop]: trace histogram [12, 8, 8, 8, 8, 8, 8, 7, 6, 6, 4, 4, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:12:47,968 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-26 00:12:47,968 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-26 00:12:47,968 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:12:47,969 INFO L85 PathProgramCache]: Analyzing trace with hash 328859515, now seen corresponding path program 1 times [2022-11-26 00:12:47,969 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:12:47,969 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1780235146] [2022-11-26 00:12:47,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:12:47,970 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:12:48,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:12:48,358 INFO L134 CoverageAnalysis]: Checked inductivity of 395 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 383 trivial. 0 not checked. [2022-11-26 00:12:48,359 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:12:48,359 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1780235146] [2022-11-26 00:12:48,359 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1780235146] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:12:48,359 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:12:48,359 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-26 00:12:48,359 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1067144846] [2022-11-26 00:12:48,360 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:12:48,361 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-26 00:12:48,361 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:12:48,361 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-26 00:12:48,361 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-26 00:12:48,362 INFO L87 Difference]: Start difference. First operand 13256 states and 18277 transitions. Second operand has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (25), 3 states have call predecessors, (25), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2022-11-26 00:12:52,332 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:12:52,333 INFO L93 Difference]: Finished difference Result 13262 states and 18282 transitions. [2022-11-26 00:12:52,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-26 00:12:52,334 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (25), 3 states have call predecessors, (25), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 165 [2022-11-26 00:12:52,334 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:12:52,393 INFO L225 Difference]: With dead ends: 13262 [2022-11-26 00:12:52,393 INFO L226 Difference]: Without dead ends: 13260 [2022-11-26 00:12:52,403 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-26 00:12:52,403 INFO L413 NwaCegarLoop]: 2453 mSDtfsCounter, 2720 mSDsluCounter, 4886 mSDsCounter, 0 mSdLazyCounter, 962 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2726 SdHoareTripleChecker+Valid, 7339 SdHoareTripleChecker+Invalid, 963 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 962 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2022-11-26 00:12:52,404 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2726 Valid, 7339 Invalid, 963 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 962 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2022-11-26 00:12:52,417 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13260 states. [2022-11-26 00:12:53,532 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13260 to 13260. [2022-11-26 00:12:53,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13260 states, 7468 states have (on average 1.2291108730583824) internal successors, (9179), 7831 states have internal predecessors, (9179), 4532 states have call successors, (4532), 1274 states have call predecessors, (4532), 1257 states have return successors, (4569), 4400 states have call predecessors, (4569), 4529 states have call successors, (4569) [2022-11-26 00:12:53,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13260 states to 13260 states and 18280 transitions. [2022-11-26 00:12:53,584 INFO L78 Accepts]: Start accepts. Automaton has 13260 states and 18280 transitions. Word has length 165 [2022-11-26 00:12:53,585 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:12:53,585 INFO L495 AbstractCegarLoop]: Abstraction has 13260 states and 18280 transitions. [2022-11-26 00:12:53,585 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (25), 3 states have call predecessors, (25), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2022-11-26 00:12:53,585 INFO L276 IsEmpty]: Start isEmpty. Operand 13260 states and 18280 transitions. [2022-11-26 00:12:53,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2022-11-26 00:12:53,588 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:12:53,589 INFO L195 NwaCegarLoop]: trace histogram [12, 8, 8, 8, 8, 8, 8, 8, 7, 7, 4, 4, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:12:53,589 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-26 00:12:53,589 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-26 00:12:53,589 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:12:53,590 INFO L85 PathProgramCache]: Analyzing trace with hash 1336243758, now seen corresponding path program 1 times [2022-11-26 00:12:53,590 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:12:53,590 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [990091241] [2022-11-26 00:12:53,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:12:53,590 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:12:53,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:12:53,963 INFO L134 CoverageAnalysis]: Checked inductivity of 421 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 407 trivial. 0 not checked. [2022-11-26 00:12:53,963 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:12:53,964 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [990091241] [2022-11-26 00:12:53,964 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [990091241] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:12:53,964 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:12:53,964 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-26 00:12:53,964 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [229231742] [2022-11-26 00:12:53,964 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:12:53,966 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-26 00:12:53,966 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:12:53,967 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-26 00:12:53,967 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-26 00:12:53,967 INFO L87 Difference]: Start difference. First operand 13260 states and 18280 transitions. Second operand has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (26), 3 states have call predecessors, (26), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2022-11-26 00:12:57,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:12:57,663 INFO L93 Difference]: Finished difference Result 13266 states and 18285 transitions. [2022-11-26 00:12:57,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-26 00:12:57,663 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (26), 3 states have call predecessors, (26), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) Word has length 170 [2022-11-26 00:12:57,664 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:12:57,710 INFO L225 Difference]: With dead ends: 13266 [2022-11-26 00:12:57,710 INFO L226 Difference]: Without dead ends: 13264 [2022-11-26 00:12:57,719 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-26 00:12:57,720 INFO L413 NwaCegarLoop]: 2453 mSDtfsCounter, 2720 mSDsluCounter, 4886 mSDsCounter, 0 mSdLazyCounter, 962 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2725 SdHoareTripleChecker+Valid, 7339 SdHoareTripleChecker+Invalid, 963 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 962 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2022-11-26 00:12:57,721 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2725 Valid, 7339 Invalid, 963 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 962 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2022-11-26 00:12:57,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13264 states. [2022-11-26 00:12:58,668 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13264 to 13264. [2022-11-26 00:12:58,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13264 states, 7471 states have (on average 1.2290188729755054) internal successors, (9182), 7834 states have internal predecessors, (9182), 4532 states have call successors, (4532), 1275 states have call predecessors, (4532), 1258 states have return successors, (4569), 4400 states have call predecessors, (4569), 4529 states have call successors, (4569) [2022-11-26 00:12:58,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13264 states to 13264 states and 18283 transitions. [2022-11-26 00:12:58,717 INFO L78 Accepts]: Start accepts. Automaton has 13264 states and 18283 transitions. Word has length 170 [2022-11-26 00:12:58,717 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:12:58,718 INFO L495 AbstractCegarLoop]: Abstraction has 13264 states and 18283 transitions. [2022-11-26 00:12:58,718 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (26), 3 states have call predecessors, (26), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2022-11-26 00:12:58,718 INFO L276 IsEmpty]: Start isEmpty. Operand 13264 states and 18283 transitions. [2022-11-26 00:12:58,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2022-11-26 00:12:58,720 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:12:58,721 INFO L195 NwaCegarLoop]: trace histogram [14, 8, 8, 8, 8, 8, 8, 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] [2022-11-26 00:12:58,721 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-26 00:12:58,721 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-26 00:12:58,721 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:12:58,722 INFO L85 PathProgramCache]: Analyzing trace with hash 1837318563, now seen corresponding path program 1 times [2022-11-26 00:12:58,722 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:12:58,722 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1151550246] [2022-11-26 00:12:58,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:12:58,722 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:12:58,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:12:58,938 INFO L134 CoverageAnalysis]: Checked inductivity of 383 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 368 trivial. 0 not checked. [2022-11-26 00:12:58,938 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:12:58,939 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1151550246] [2022-11-26 00:12:58,939 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1151550246] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:12:58,939 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:12:58,939 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-26 00:12:58,939 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1833330413] [2022-11-26 00:12:58,939 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:12:58,940 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-26 00:12:58,940 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:12:58,941 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-26 00:12:58,941 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:12:58,941 INFO L87 Difference]: Start difference. First operand 13264 states and 18283 transitions. Second operand has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 3 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) [2022-11-26 00:13:02,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:13:02,220 INFO L93 Difference]: Finished difference Result 28248 states and 38812 transitions. [2022-11-26 00:13:02,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-26 00:13:02,223 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 3 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) Word has length 168 [2022-11-26 00:13:02,223 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:13:02,269 INFO L225 Difference]: With dead ends: 28248 [2022-11-26 00:13:02,269 INFO L226 Difference]: Without dead ends: 15054 [2022-11-26 00:13:02,318 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:13:02,319 INFO L413 NwaCegarLoop]: 3167 mSDtfsCounter, 893 mSDsluCounter, 2412 mSDsCounter, 0 mSdLazyCounter, 810 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 893 SdHoareTripleChecker+Valid, 5579 SdHoareTripleChecker+Invalid, 824 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 810 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-11-26 00:13:02,319 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [893 Valid, 5579 Invalid, 824 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 810 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2022-11-26 00:13:02,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15054 states. [2022-11-26 00:13:03,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15054 to 14993. [2022-11-26 00:13:03,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14993 states, 8473 states have (on average 1.2264841260474448) internal successors, (10392), 8866 states have internal predecessors, (10392), 5034 states have call successors, (5034), 1500 states have call predecessors, (5034), 1483 states have return successors, (5071), 4890 states have call predecessors, (5071), 5031 states have call successors, (5071) [2022-11-26 00:13:03,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14993 states to 14993 states and 20497 transitions. [2022-11-26 00:13:03,691 INFO L78 Accepts]: Start accepts. Automaton has 14993 states and 20497 transitions. Word has length 168 [2022-11-26 00:13:03,692 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:13:03,692 INFO L495 AbstractCegarLoop]: Abstraction has 14993 states and 20497 transitions. [2022-11-26 00:13:03,692 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 3 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) [2022-11-26 00:13:03,692 INFO L276 IsEmpty]: Start isEmpty. Operand 14993 states and 20497 transitions. [2022-11-26 00:13:03,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2022-11-26 00:13:03,695 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:13:03,695 INFO L195 NwaCegarLoop]: trace histogram [12, 9, 8, 8, 8, 8, 8, 8, 8, 8, 4, 4, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:13:03,695 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-26 00:13:03,695 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-26 00:13:03,696 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:13:03,696 INFO L85 PathProgramCache]: Analyzing trace with hash 1877233435, now seen corresponding path program 1 times [2022-11-26 00:13:03,696 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:13:03,697 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1383419985] [2022-11-26 00:13:03,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:13:03,697 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:13:03,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:13:04,261 INFO L134 CoverageAnalysis]: Checked inductivity of 451 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 435 trivial. 0 not checked. [2022-11-26 00:13:04,261 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:13:04,262 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1383419985] [2022-11-26 00:13:04,262 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1383419985] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:13:04,262 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:13:04,262 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-26 00:13:04,262 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [402853597] [2022-11-26 00:13:04,263 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:13:04,263 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-26 00:13:04,263 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:13:04,264 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-26 00:13:04,264 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-26 00:13:04,265 INFO L87 Difference]: Start difference. First operand 14993 states and 20497 transitions. Second operand has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (27), 3 states have call predecessors, (27), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2022-11-26 00:13:08,264 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:13:08,264 INFO L93 Difference]: Finished difference Result 14999 states and 20502 transitions. [2022-11-26 00:13:08,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-26 00:13:08,265 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (27), 3 states have call predecessors, (27), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) Word has length 175 [2022-11-26 00:13:08,265 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:13:08,306 INFO L225 Difference]: With dead ends: 14999 [2022-11-26 00:13:08,306 INFO L226 Difference]: Without dead ends: 14997 [2022-11-26 00:13:08,312 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-26 00:13:08,312 INFO L413 NwaCegarLoop]: 2453 mSDtfsCounter, 2720 mSDsluCounter, 4886 mSDsCounter, 0 mSdLazyCounter, 962 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2724 SdHoareTripleChecker+Valid, 7339 SdHoareTripleChecker+Invalid, 963 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 962 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2022-11-26 00:13:08,313 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2724 Valid, 7339 Invalid, 963 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 962 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2022-11-26 00:13:08,326 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14997 states. [2022-11-26 00:13:09,339 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14997 to 14997. [2022-11-26 00:13:09,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14997 states, 8476 states have (on average 1.2264039641340254) internal successors, (10395), 8869 states have internal predecessors, (10395), 5034 states have call successors, (5034), 1501 states have call predecessors, (5034), 1484 states have return successors, (5071), 4890 states have call predecessors, (5071), 5031 states have call successors, (5071) [2022-11-26 00:13:09,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14997 states to 14997 states and 20500 transitions. [2022-11-26 00:13:09,392 INFO L78 Accepts]: Start accepts. Automaton has 14997 states and 20500 transitions. Word has length 175 [2022-11-26 00:13:09,392 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:13:09,392 INFO L495 AbstractCegarLoop]: Abstraction has 14997 states and 20500 transitions. [2022-11-26 00:13:09,392 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (27), 3 states have call predecessors, (27), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2022-11-26 00:13:09,392 INFO L276 IsEmpty]: Start isEmpty. Operand 14997 states and 20500 transitions. [2022-11-26 00:13:09,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2022-11-26 00:13:09,394 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:13:09,394 INFO L195 NwaCegarLoop]: trace histogram [12, 10, 9, 9, 8, 8, 8, 8, 8, 8, 6, 6, 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] [2022-11-26 00:13:09,394 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-26 00:13:09,394 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-26 00:13:09,395 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:13:09,395 INFO L85 PathProgramCache]: Analyzing trace with hash 310003537, now seen corresponding path program 1 times [2022-11-26 00:13:09,395 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:13:09,395 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1176781773] [2022-11-26 00:13:09,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:13:09,395 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:13:09,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:13:09,786 INFO L134 CoverageAnalysis]: Checked inductivity of 511 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 493 trivial. 0 not checked. [2022-11-26 00:13:09,786 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:13:09,786 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1176781773] [2022-11-26 00:13:09,786 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1176781773] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:13:09,786 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:13:09,787 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-26 00:13:09,787 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1536260497] [2022-11-26 00:13:09,787 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:13:09,787 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-26 00:13:09,788 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:13:09,788 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-26 00:13:09,788 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-26 00:13:09,788 INFO L87 Difference]: Start difference. First operand 14997 states and 20500 transitions. Second operand has 5 states, 5 states have (on average 8.0) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (30), 3 states have call predecessors, (30), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2022-11-26 00:13:13,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:13:13,671 INFO L93 Difference]: Finished difference Result 15003 states and 20505 transitions. [2022-11-26 00:13:13,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-26 00:13:13,671 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.0) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (30), 3 states have call predecessors, (30), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) Word has length 189 [2022-11-26 00:13:13,672 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:13:13,709 INFO L225 Difference]: With dead ends: 15003 [2022-11-26 00:13:13,709 INFO L226 Difference]: Without dead ends: 15001 [2022-11-26 00:13:13,713 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-26 00:13:13,714 INFO L413 NwaCegarLoop]: 2453 mSDtfsCounter, 2716 mSDsluCounter, 4886 mSDsCounter, 0 mSdLazyCounter, 962 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2719 SdHoareTripleChecker+Valid, 7339 SdHoareTripleChecker+Invalid, 963 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 962 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2022-11-26 00:13:13,715 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2719 Valid, 7339 Invalid, 963 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 962 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2022-11-26 00:13:13,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15001 states. [2022-11-26 00:13:14,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15001 to 15001. [2022-11-26 00:13:14,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15001 states, 8479 states have (on average 1.2263238589456305) internal successors, (10398), 8872 states have internal predecessors, (10398), 5034 states have call successors, (5034), 1502 states have call predecessors, (5034), 1485 states have return successors, (5071), 4890 states have call predecessors, (5071), 5031 states have call successors, (5071) [2022-11-26 00:13:14,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15001 states to 15001 states and 20503 transitions. [2022-11-26 00:13:14,712 INFO L78 Accepts]: Start accepts. Automaton has 15001 states and 20503 transitions. Word has length 189 [2022-11-26 00:13:14,712 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:13:14,712 INFO L495 AbstractCegarLoop]: Abstraction has 15001 states and 20503 transitions. [2022-11-26 00:13:14,712 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.0) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (30), 3 states have call predecessors, (30), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2022-11-26 00:13:14,713 INFO L276 IsEmpty]: Start isEmpty. Operand 15001 states and 20503 transitions. [2022-11-26 00:13:14,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2022-11-26 00:13:14,714 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:13:14,714 INFO L195 NwaCegarLoop]: trace histogram [12, 11, 10, 10, 8, 8, 8, 8, 8, 8, 6, 6, 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] [2022-11-26 00:13:14,714 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-26 00:13:14,714 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-26 00:13:14,715 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:13:14,715 INFO L85 PathProgramCache]: Analyzing trace with hash 845015896, now seen corresponding path program 1 times [2022-11-26 00:13:14,715 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:13:14,715 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [837620450] [2022-11-26 00:13:14,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:13:14,716 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:13:14,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:13:15,320 INFO L134 CoverageAnalysis]: Checked inductivity of 549 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 529 trivial. 0 not checked. [2022-11-26 00:13:15,320 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:13:15,320 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [837620450] [2022-11-26 00:13:15,323 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [837620450] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:13:15,323 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:13:15,323 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-26 00:13:15,324 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1106647603] [2022-11-26 00:13:15,324 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:13:15,324 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-26 00:13:15,324 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:13:15,325 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-26 00:13:15,325 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-26 00:13:15,326 INFO L87 Difference]: Start difference. First operand 15001 states and 20503 transitions. Second operand has 5 states, 5 states have (on average 8.0) internal successors, (40), 4 states have internal predecessors, (40), 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) [2022-11-26 00:13:19,898 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:13:19,898 INFO L93 Difference]: Finished difference Result 15007 states and 20508 transitions. [2022-11-26 00:13:19,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-26 00:13:19,899 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.0) internal successors, (40), 4 states have internal predecessors, (40), 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 194 [2022-11-26 00:13:19,900 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:13:19,964 INFO L225 Difference]: With dead ends: 15007 [2022-11-26 00:13:19,964 INFO L226 Difference]: Without dead ends: 15005 [2022-11-26 00:13:19,976 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-26 00:13:19,976 INFO L413 NwaCegarLoop]: 2453 mSDtfsCounter, 2716 mSDsluCounter, 4886 mSDsCounter, 0 mSdLazyCounter, 962 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2718 SdHoareTripleChecker+Valid, 7339 SdHoareTripleChecker+Invalid, 963 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 962 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2022-11-26 00:13:19,977 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2718 Valid, 7339 Invalid, 963 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 962 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2022-11-26 00:13:19,992 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15005 states. [2022-11-26 00:13:21,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15005 to 15005. [2022-11-26 00:13:21,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15005 states, 8482 states have (on average 1.2262438104220703) internal successors, (10401), 8875 states have internal predecessors, (10401), 5034 states have call successors, (5034), 1503 states have call predecessors, (5034), 1486 states have return successors, (5071), 4890 states have call predecessors, (5071), 5031 states have call successors, (5071) [2022-11-26 00:13:21,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15005 states to 15005 states and 20506 transitions. [2022-11-26 00:13:21,100 INFO L78 Accepts]: Start accepts. Automaton has 15005 states and 20506 transitions. Word has length 194 [2022-11-26 00:13:21,100 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:13:21,100 INFO L495 AbstractCegarLoop]: Abstraction has 15005 states and 20506 transitions. [2022-11-26 00:13:21,100 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.0) internal successors, (40), 4 states have internal predecessors, (40), 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) [2022-11-26 00:13:21,100 INFO L276 IsEmpty]: Start isEmpty. Operand 15005 states and 20506 transitions. [2022-11-26 00:13:21,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2022-11-26 00:13:21,102 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:13:21,102 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 11, 11, 8, 8, 8, 8, 8, 8, 6, 6, 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] [2022-11-26 00:13:21,102 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-11-26 00:13:21,103 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-26 00:13:21,103 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:13:21,103 INFO L85 PathProgramCache]: Analyzing trace with hash 1865403249, now seen corresponding path program 1 times [2022-11-26 00:13:21,103 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:13:21,103 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1658631518] [2022-11-26 00:13:21,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:13:21,104 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:13:21,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:13:21,486 INFO L134 CoverageAnalysis]: Checked inductivity of 591 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 569 trivial. 0 not checked. [2022-11-26 00:13:21,486 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:13:21,486 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1658631518] [2022-11-26 00:13:21,486 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1658631518] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:13:21,486 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:13:21,487 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-26 00:13:21,487 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [564513201] [2022-11-26 00:13:21,487 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:13:21,487 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-26 00:13:21,488 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:13:21,488 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-26 00:13:21,488 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-26 00:13:21,488 INFO L87 Difference]: Start difference. First operand 15005 states and 20506 transitions. Second operand has 5 states, 5 states have (on average 8.0) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (32), 3 states have call predecessors, (32), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2022-11-26 00:13:26,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:13:26,139 INFO L93 Difference]: Finished difference Result 15011 states and 20511 transitions. [2022-11-26 00:13:26,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-26 00:13:26,140 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.0) internal successors, (40), 4 states have internal predecessors, (40), 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 199 [2022-11-26 00:13:26,140 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:13:26,185 INFO L225 Difference]: With dead ends: 15011 [2022-11-26 00:13:26,185 INFO L226 Difference]: Without dead ends: 15007 [2022-11-26 00:13:26,193 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-26 00:13:26,193 INFO L413 NwaCegarLoop]: 2453 mSDtfsCounter, 2716 mSDsluCounter, 4886 mSDsCounter, 0 mSdLazyCounter, 962 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2717 SdHoareTripleChecker+Valid, 7339 SdHoareTripleChecker+Invalid, 963 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 962 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2022-11-26 00:13:26,194 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2717 Valid, 7339 Invalid, 963 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 962 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2022-11-26 00:13:26,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15007 states. [2022-11-26 00:13:27,278 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15007 to 15007. [2022-11-26 00:13:27,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15007 states, 8484 states have (on average 1.226072607260726) internal successors, (10402), 8876 states have internal predecessors, (10402), 5034 states have call successors, (5034), 1504 states have call predecessors, (5034), 1486 states have return successors, (5071), 4890 states have call predecessors, (5071), 5031 states have call successors, (5071) [2022-11-26 00:13:27,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15007 states to 15007 states and 20507 transitions. [2022-11-26 00:13:27,337 INFO L78 Accepts]: Start accepts. Automaton has 15007 states and 20507 transitions. Word has length 199 [2022-11-26 00:13:27,338 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:13:27,338 INFO L495 AbstractCegarLoop]: Abstraction has 15007 states and 20507 transitions. [2022-11-26 00:13:27,338 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.0) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (32), 3 states have call predecessors, (32), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2022-11-26 00:13:27,338 INFO L276 IsEmpty]: Start isEmpty. Operand 15007 states and 20507 transitions. [2022-11-26 00:13:27,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2022-11-26 00:13:27,340 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:13:27,340 INFO L195 NwaCegarLoop]: trace histogram [13, 12, 12, 12, 8, 8, 8, 8, 8, 8, 6, 6, 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] [2022-11-26 00:13:27,341 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-11-26 00:13:27,341 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)] === [2022-11-26 00:13:27,341 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:13:27,342 INFO L85 PathProgramCache]: Analyzing trace with hash -179295560, now seen corresponding path program 1 times [2022-11-26 00:13:27,342 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:13:27,342 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [867156298] [2022-11-26 00:13:27,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:13:27,342 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:13:27,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:13:27,715 INFO L134 CoverageAnalysis]: Checked inductivity of 637 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 613 trivial. 0 not checked. [2022-11-26 00:13:27,716 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:13:27,716 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [867156298] [2022-11-26 00:13:27,716 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [867156298] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:13:27,716 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:13:27,717 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-26 00:13:27,717 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1015137001] [2022-11-26 00:13:27,717 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:13:27,717 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-26 00:13:27,718 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:13:27,718 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-26 00:13:27,718 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-26 00:13:27,718 INFO L87 Difference]: Start difference. First operand 15007 states and 20507 transitions. Second operand has 5 states, 5 states have (on average 8.0) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (33), 3 states have call predecessors, (33), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2022-11-26 00:13:32,511 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:13:32,511 INFO L93 Difference]: Finished difference Result 15007 states and 20507 transitions. [2022-11-26 00:13:32,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-26 00:13:32,512 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.0) internal successors, (40), 4 states have internal predecessors, (40), 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 204 [2022-11-26 00:13:32,513 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:13:32,553 INFO L225 Difference]: With dead ends: 15007 [2022-11-26 00:13:32,553 INFO L226 Difference]: Without dead ends: 14856 [2022-11-26 00:13:32,559 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-26 00:13:32,560 INFO L413 NwaCegarLoop]: 2451 mSDtfsCounter, 2712 mSDsluCounter, 4885 mSDsCounter, 0 mSdLazyCounter, 957 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2712 SdHoareTripleChecker+Valid, 7336 SdHoareTripleChecker+Invalid, 958 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 957 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2022-11-26 00:13:32,560 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2712 Valid, 7336 Invalid, 958 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 957 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2022-11-26 00:13:32,574 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14856 states. [2022-11-26 00:13:34,181 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14856 to 14856. [2022-11-26 00:13:34,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14856 states, 8426 states have (on average 1.2238309992879184) internal successors, (10312), 8786 states have internal predecessors, (10312), 4955 states have call successors, (4955), 1489 states have call predecessors, (4955), 1473 states have return successors, (4995), 4844 states have call predecessors, (4995), 4955 states have call successors, (4995) [2022-11-26 00:13:34,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14856 states to 14856 states and 20262 transitions. [2022-11-26 00:13:34,236 INFO L78 Accepts]: Start accepts. Automaton has 14856 states and 20262 transitions. Word has length 204 [2022-11-26 00:13:34,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:13:34,237 INFO L495 AbstractCegarLoop]: Abstraction has 14856 states and 20262 transitions. [2022-11-26 00:13:34,237 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.0) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (33), 3 states have call predecessors, (33), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2022-11-26 00:13:34,237 INFO L276 IsEmpty]: Start isEmpty. Operand 14856 states and 20262 transitions. [2022-11-26 00:13:34,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 231 [2022-11-26 00:13:34,240 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:13:34,240 INFO L195 NwaCegarLoop]: trace histogram [16, 8, 8, 8, 8, 8, 8, 8, 8, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:13:34,240 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-11-26 00:13:34,241 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-26 00:13:34,241 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:13:34,241 INFO L85 PathProgramCache]: Analyzing trace with hash -832367508, now seen corresponding path program 1 times [2022-11-26 00:13:34,241 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:13:34,241 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [24935139] [2022-11-26 00:13:34,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:13:34,242 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:13:34,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:13:34,997 INFO L134 CoverageAnalysis]: Checked inductivity of 539 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 539 trivial. 0 not checked. [2022-11-26 00:13:34,998 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:13:34,998 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [24935139] [2022-11-26 00:13:34,998 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [24935139] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:13:34,998 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:13:34,998 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-26 00:13:34,998 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [517650825] [2022-11-26 00:13:34,999 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:13:34,999 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-26 00:13:34,999 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:13:35,000 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-26 00:13:35,000 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-26 00:13:35,000 INFO L87 Difference]: Start difference. First operand 14856 states and 20262 transitions. Second operand has 5 states, 5 states have (on average 14.6) internal successors, (73), 4 states have internal predecessors, (73), 2 states have call successors, (28), 3 states have call predecessors, (28), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2022-11-26 00:13:39,912 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:13:39,912 INFO L93 Difference]: Finished difference Result 14892 states and 20296 transitions. [2022-11-26 00:13:39,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-26 00:13:39,912 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.6) internal successors, (73), 4 states have internal predecessors, (73), 2 states have call successors, (28), 3 states have call predecessors, (28), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) Word has length 230 [2022-11-26 00:13:39,913 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:13:39,954 INFO L225 Difference]: With dead ends: 14892 [2022-11-26 00:13:39,954 INFO L226 Difference]: Without dead ends: 14890 [2022-11-26 00:13:39,960 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-26 00:13:39,961 INFO L413 NwaCegarLoop]: 2429 mSDtfsCounter, 1548 mSDsluCounter, 5908 mSDsCounter, 0 mSdLazyCounter, 1044 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1550 SdHoareTripleChecker+Valid, 8337 SdHoareTripleChecker+Invalid, 1046 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1044 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2022-11-26 00:13:39,961 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1550 Valid, 8337 Invalid, 1046 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1044 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2022-11-26 00:13:39,971 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14890 states. [2022-11-26 00:13:41,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14890 to 14888. [2022-11-26 00:13:41,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14888 states, 8450 states have (on average 1.2215384615384615) internal successors, (10322), 8810 states have internal predecessors, (10322), 4955 states have call successors, (4955), 1497 states have call predecessors, (4955), 1481 states have return successors, (4995), 4844 states have call predecessors, (4995), 4955 states have call successors, (4995) [2022-11-26 00:13:41,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14888 states to 14888 states and 20272 transitions. [2022-11-26 00:13:41,301 INFO L78 Accepts]: Start accepts. Automaton has 14888 states and 20272 transitions. Word has length 230 [2022-11-26 00:13:41,302 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:13:41,302 INFO L495 AbstractCegarLoop]: Abstraction has 14888 states and 20272 transitions. [2022-11-26 00:13:41,302 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.6) internal successors, (73), 4 states have internal predecessors, (73), 2 states have call successors, (28), 3 states have call predecessors, (28), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2022-11-26 00:13:41,302 INFO L276 IsEmpty]: Start isEmpty. Operand 14888 states and 20272 transitions. [2022-11-26 00:13:41,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 261 [2022-11-26 00:13:41,307 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:13:41,307 INFO L195 NwaCegarLoop]: trace histogram [15, 10, 10, 8, 8, 8, 8, 8, 8, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:13:41,308 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-11-26 00:13:41,308 INFO L420 AbstractCegarLoop]: === Iteration 20 === 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)] === [2022-11-26 00:13:41,308 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:13:41,308 INFO L85 PathProgramCache]: Analyzing trace with hash -1706550882, now seen corresponding path program 1 times [2022-11-26 00:13:41,309 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:13:41,309 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [745316817] [2022-11-26 00:13:41,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:13:41,309 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:13:41,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:13:41,621 INFO L134 CoverageAnalysis]: Checked inductivity of 539 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 539 trivial. 0 not checked. [2022-11-26 00:13:41,621 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:13:41,621 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [745316817] [2022-11-26 00:13:41,622 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [745316817] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:13:41,622 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:13:41,622 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-26 00:13:41,622 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [905452946] [2022-11-26 00:13:41,622 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:13:41,623 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-26 00:13:41,623 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:13:41,623 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-26 00:13:41,624 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-26 00:13:41,624 INFO L87 Difference]: Start difference. First operand 14888 states and 20272 transitions. Second operand has 4 states, 4 states have (on average 23.5) internal successors, (94), 4 states have internal predecessors, (94), 2 states have call successors, (37), 2 states have call predecessors, (37), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2022-11-26 00:13:46,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:13:46,372 INFO L93 Difference]: Finished difference Result 29730 states and 40564 transitions. [2022-11-26 00:13:46,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-26 00:13:46,372 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 23.5) internal successors, (94), 4 states have internal predecessors, (94), 2 states have call successors, (37), 2 states have call predecessors, (37), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) Word has length 260 [2022-11-26 00:13:46,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:13:46,436 INFO L225 Difference]: With dead ends: 29730 [2022-11-26 00:13:46,436 INFO L226 Difference]: Without dead ends: 14912 [2022-11-26 00:13:46,489 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-26 00:13:46,490 INFO L413 NwaCegarLoop]: 2409 mSDtfsCounter, 5 mSDsluCounter, 4812 mSDsCounter, 0 mSdLazyCounter, 945 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 7221 SdHoareTripleChecker+Invalid, 947 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 945 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2022-11-26 00:13:46,490 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 7221 Invalid, 947 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 945 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2022-11-26 00:13:46,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14912 states. [2022-11-26 00:13:47,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14912 to 14908. [2022-11-26 00:13:47,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14908 states, 8466 states have (on average 1.221119773210489) internal successors, (10338), 8830 states have internal predecessors, (10338), 4955 states have call successors, (4955), 1497 states have call predecessors, (4955), 1485 states have return successors, (4999), 4844 states have call predecessors, (4999), 4955 states have call successors, (4999) [2022-11-26 00:13:47,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14908 states to 14908 states and 20292 transitions. [2022-11-26 00:13:47,999 INFO L78 Accepts]: Start accepts. Automaton has 14908 states and 20292 transitions. Word has length 260 [2022-11-26 00:13:48,000 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:13:48,000 INFO L495 AbstractCegarLoop]: Abstraction has 14908 states and 20292 transitions. [2022-11-26 00:13:48,000 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 23.5) internal successors, (94), 4 states have internal predecessors, (94), 2 states have call successors, (37), 2 states have call predecessors, (37), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2022-11-26 00:13:48,001 INFO L276 IsEmpty]: Start isEmpty. Operand 14908 states and 20292 transitions. [2022-11-26 00:13:48,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 263 [2022-11-26 00:13:48,005 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:13:48,005 INFO L195 NwaCegarLoop]: trace histogram [16, 9, 9, 8, 8, 8, 8, 8, 8, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:13:48,005 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-11-26 00:13:48,006 INFO L420 AbstractCegarLoop]: === Iteration 21 === 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)] === [2022-11-26 00:13:48,006 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:13:48,006 INFO L85 PathProgramCache]: Analyzing trace with hash -2000671655, now seen corresponding path program 1 times [2022-11-26 00:13:48,006 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:13:48,007 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1883892116] [2022-11-26 00:13:48,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:13:48,007 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:13:48,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:13:48,716 INFO L134 CoverageAnalysis]: Checked inductivity of 563 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 563 trivial. 0 not checked. [2022-11-26 00:13:48,716 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:13:48,717 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1883892116] [2022-11-26 00:13:48,717 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1883892116] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:13:48,717 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:13:48,717 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-26 00:13:48,717 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [980408541] [2022-11-26 00:13:48,717 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:13:48,718 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-26 00:13:48,718 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:13:48,719 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-26 00:13:48,719 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-26 00:13:48,719 INFO L87 Difference]: Start difference. First operand 14908 states and 20292 transitions. Second operand has 5 states, 5 states have (on average 17.6) internal successors, (88), 4 states have internal predecessors, (88), 2 states have call successors, (36), 3 states have call predecessors, (36), 2 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2022-11-26 00:13:53,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:13:53,285 INFO L93 Difference]: Finished difference Result 14910 states and 20293 transitions. [2022-11-26 00:13:53,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-26 00:13:53,286 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.6) internal successors, (88), 4 states have internal predecessors, (88), 2 states have call successors, (36), 3 states have call predecessors, (36), 2 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) Word has length 262 [2022-11-26 00:13:53,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:13:53,350 INFO L225 Difference]: With dead ends: 14910 [2022-11-26 00:13:53,351 INFO L226 Difference]: Without dead ends: 14908 [2022-11-26 00:13:53,364 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-11-26 00:13:53,365 INFO L413 NwaCegarLoop]: 2414 mSDtfsCounter, 1131 mSDsluCounter, 6205 mSDsCounter, 0 mSdLazyCounter, 1202 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1132 SdHoareTripleChecker+Valid, 8619 SdHoareTripleChecker+Invalid, 1203 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1202 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2022-11-26 00:13:53,365 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1132 Valid, 8619 Invalid, 1203 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1202 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2022-11-26 00:13:53,381 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14908 states. [2022-11-26 00:13:54,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14908 to 14908. [2022-11-26 00:13:54,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14908 states, 8466 states have (on average 1.218521143397118) internal successors, (10316), 8830 states have internal predecessors, (10316), 4955 states have call successors, (4955), 1497 states have call predecessors, (4955), 1485 states have return successors, (4999), 4844 states have call predecessors, (4999), 4955 states have call successors, (4999) [2022-11-26 00:13:54,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14908 states to 14908 states and 20270 transitions. [2022-11-26 00:13:54,874 INFO L78 Accepts]: Start accepts. Automaton has 14908 states and 20270 transitions. Word has length 262 [2022-11-26 00:13:54,874 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:13:54,875 INFO L495 AbstractCegarLoop]: Abstraction has 14908 states and 20270 transitions. [2022-11-26 00:13:54,875 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.6) internal successors, (88), 4 states have internal predecessors, (88), 2 states have call successors, (36), 3 states have call predecessors, (36), 2 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2022-11-26 00:13:54,875 INFO L276 IsEmpty]: Start isEmpty. Operand 14908 states and 20270 transitions. [2022-11-26 00:13:54,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 370 [2022-11-26 00:13:54,885 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:13:54,885 INFO L195 NwaCegarLoop]: trace histogram [16, 12, 12, 8, 8, 8, 8, 8, 8, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:13:54,885 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-11-26 00:13:54,886 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-26 00:13:54,886 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:13:54,886 INFO L85 PathProgramCache]: Analyzing trace with hash -1313085353, now seen corresponding path program 1 times [2022-11-26 00:13:54,886 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:13:54,887 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [158238522] [2022-11-26 00:13:54,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:13:54,887 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:13:55,065 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-26 00:13:55,071 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [27314381] [2022-11-26 00:13:55,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:13:55,076 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:13:55,077 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cac9c205-46d5-476a-8993-1271534358cc/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:13:55,083 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cac9c205-46d5-476a-8993-1271534358cc/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-26 00:13:55,107 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cac9c205-46d5-476a-8993-1271534358cc/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-26 00:13:56,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:13:56,643 INFO L263 TraceCheckSpWp]: Trace formula consists of 4382 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-26 00:13:56,665 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:13:56,705 INFO L134 CoverageAnalysis]: Checked inductivity of 679 backedges. 166 proven. 0 refuted. 0 times theorem prover too weak. 513 trivial. 0 not checked. [2022-11-26 00:13:56,706 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-26 00:13:56,706 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:13:56,706 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [158238522] [2022-11-26 00:13:56,706 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-26 00:13:56,707 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [27314381] [2022-11-26 00:13:56,707 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [27314381] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:13:56,707 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:13:56,707 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-26 00:13:56,707 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1858565902] [2022-11-26 00:13:56,708 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:13:56,708 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-26 00:13:56,708 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:13:56,709 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-26 00:13:56,709 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:13:56,710 INFO L87 Difference]: Start difference. First operand 14908 states and 20270 transitions. Second operand has 3 states, 3 states have (on average 50.666666666666664) internal successors, (152), 3 states have internal predecessors, (152), 2 states have call successors, (49), 2 states have call predecessors, (49), 2 states have return successors, (48), 2 states have call predecessors, (48), 2 states have call successors, (48) [2022-11-26 00:14:00,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:14:00,231 INFO L93 Difference]: Finished difference Result 31688 states and 43582 transitions. [2022-11-26 00:14:00,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-26 00:14:00,234 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 50.666666666666664) internal successors, (152), 3 states have internal predecessors, (152), 2 states have call successors, (49), 2 states have call predecessors, (49), 2 states have return successors, (48), 2 states have call predecessors, (48), 2 states have call successors, (48) Word has length 369 [2022-11-26 00:14:00,235 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:14:00,307 INFO L225 Difference]: With dead ends: 31688 [2022-11-26 00:14:00,307 INFO L226 Difference]: Without dead ends: 16850 [2022-11-26 00:14:00,364 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 368 GetRequests, 367 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:14:00,365 INFO L413 NwaCegarLoop]: 2690 mSDtfsCounter, 163 mSDsluCounter, 2477 mSDsCounter, 0 mSdLazyCounter, 632 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 275 SdHoareTripleChecker+Valid, 5167 SdHoareTripleChecker+Invalid, 632 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 632 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-11-26 00:14:00,365 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [275 Valid, 5167 Invalid, 632 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 632 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-11-26 00:14:00,382 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16850 states. [2022-11-26 00:14:01,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16850 to 14914. [2022-11-26 00:14:01,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14914 states, 8472 states have (on average 1.2183663833805476) internal successors, (10322), 8836 states have internal predecessors, (10322), 4955 states have call successors, (4955), 1497 states have call predecessors, (4955), 1485 states have return successors, (4999), 4844 states have call predecessors, (4999), 4955 states have call successors, (4999) [2022-11-26 00:14:01,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14914 states to 14914 states and 20276 transitions. [2022-11-26 00:14:01,860 INFO L78 Accepts]: Start accepts. Automaton has 14914 states and 20276 transitions. Word has length 369 [2022-11-26 00:14:01,860 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:14:01,860 INFO L495 AbstractCegarLoop]: Abstraction has 14914 states and 20276 transitions. [2022-11-26 00:14:01,861 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 50.666666666666664) internal successors, (152), 3 states have internal predecessors, (152), 2 states have call successors, (49), 2 states have call predecessors, (49), 2 states have return successors, (48), 2 states have call predecessors, (48), 2 states have call successors, (48) [2022-11-26 00:14:01,861 INFO L276 IsEmpty]: Start isEmpty. Operand 14914 states and 20276 transitions. [2022-11-26 00:14:01,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 385 [2022-11-26 00:14:01,871 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:14:01,872 INFO L195 NwaCegarLoop]: trace histogram [17, 12, 12, 9, 9, 9, 9, 9, 9, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:14:01,890 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cac9c205-46d5-476a-8993-1271534358cc/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-26 00:14:02,087 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cac9c205-46d5-476a-8993-1271534358cc/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2022-11-26 00:14:02,088 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)] === [2022-11-26 00:14:02,088 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:14:02,088 INFO L85 PathProgramCache]: Analyzing trace with hash 2095185150, now seen corresponding path program 1 times [2022-11-26 00:14:02,088 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:14:02,089 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [428980616] [2022-11-26 00:14:02,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:14:02,089 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:14:02,257 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-26 00:14:02,258 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [197985619] [2022-11-26 00:14:02,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:14:02,259 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:14:02,259 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cac9c205-46d5-476a-8993-1271534358cc/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:14:02,260 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cac9c205-46d5-476a-8993-1271534358cc/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-26 00:14:02,279 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cac9c205-46d5-476a-8993-1271534358cc/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-26 00:14:03,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:14:03,873 INFO L263 TraceCheckSpWp]: Trace formula consists of 4502 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-26 00:14:03,886 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:14:03,938 INFO L134 CoverageAnalysis]: Checked inductivity of 759 backedges. 262 proven. 0 refuted. 0 times theorem prover too weak. 497 trivial. 0 not checked. [2022-11-26 00:14:03,943 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-26 00:14:03,943 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:14:03,943 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [428980616] [2022-11-26 00:14:03,943 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-26 00:14:03,943 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [197985619] [2022-11-26 00:14:03,944 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [197985619] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:14:03,944 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:14:03,944 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-26 00:14:03,944 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1010107041] [2022-11-26 00:14:03,944 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:14:03,945 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-26 00:14:03,955 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:14:03,955 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-26 00:14:03,956 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-26 00:14:03,956 INFO L87 Difference]: Start difference. First operand 14914 states and 20276 transitions. Second operand has 4 states, 4 states have (on average 41.25) internal successors, (165), 4 states have internal predecessors, (165), 2 states have call successors, (54), 2 states have call predecessors, (54), 2 states have return successors, (53), 2 states have call predecessors, (53), 2 states have call successors, (53) [2022-11-26 00:14:08,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:14:08,278 INFO L93 Difference]: Finished difference Result 29812 states and 40612 transitions. [2022-11-26 00:14:08,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-26 00:14:08,279 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 41.25) internal successors, (165), 4 states have internal predecessors, (165), 2 states have call successors, (54), 2 states have call predecessors, (54), 2 states have return successors, (53), 2 states have call predecessors, (53), 2 states have call successors, (53) Word has length 384 [2022-11-26 00:14:08,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:14:08,334 INFO L225 Difference]: With dead ends: 29812 [2022-11-26 00:14:08,334 INFO L226 Difference]: Without dead ends: 14968 [2022-11-26 00:14:08,378 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 384 GetRequests, 381 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-26 00:14:08,378 INFO L413 NwaCegarLoop]: 2415 mSDtfsCounter, 13 mSDsluCounter, 4819 mSDsCounter, 0 mSdLazyCounter, 943 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 7234 SdHoareTripleChecker+Invalid, 946 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 943 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2022-11-26 00:14:08,379 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 7234 Invalid, 946 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 943 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2022-11-26 00:14:08,393 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14968 states. [2022-11-26 00:14:09,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14968 to 14926. [2022-11-26 00:14:09,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14926 states, 8484 states have (on average 1.2180575200377182) internal successors, (10334), 8848 states have internal predecessors, (10334), 4955 states have call successors, (4955), 1497 states have call predecessors, (4955), 1485 states have return successors, (4999), 4844 states have call predecessors, (4999), 4955 states have call successors, (4999) [2022-11-26 00:14:09,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14926 states to 14926 states and 20288 transitions. [2022-11-26 00:14:09,931 INFO L78 Accepts]: Start accepts. Automaton has 14926 states and 20288 transitions. Word has length 384 [2022-11-26 00:14:09,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:14:09,932 INFO L495 AbstractCegarLoop]: Abstraction has 14926 states and 20288 transitions. [2022-11-26 00:14:09,932 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 41.25) internal successors, (165), 4 states have internal predecessors, (165), 2 states have call successors, (54), 2 states have call predecessors, (54), 2 states have return successors, (53), 2 states have call predecessors, (53), 2 states have call successors, (53) [2022-11-26 00:14:09,932 INFO L276 IsEmpty]: Start isEmpty. Operand 14926 states and 20288 transitions. [2022-11-26 00:14:09,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 402 [2022-11-26 00:14:09,939 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:14:09,939 INFO L195 NwaCegarLoop]: trace histogram [17, 12, 12, 9, 9, 9, 9, 9, 9, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:14:09,955 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cac9c205-46d5-476a-8993-1271534358cc/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-26 00:14:10,153 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cac9c205-46d5-476a-8993-1271534358cc/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2022-11-26 00:14:10,154 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)] === [2022-11-26 00:14:10,154 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:14:10,154 INFO L85 PathProgramCache]: Analyzing trace with hash 1095683540, now seen corresponding path program 1 times [2022-11-26 00:14:10,154 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:14:10,154 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1274421011] [2022-11-26 00:14:10,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:14:10,154 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:14:10,322 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-26 00:14:10,322 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2921908] [2022-11-26 00:14:10,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:14:10,323 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:14:10,323 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cac9c205-46d5-476a-8993-1271534358cc/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:14:10,324 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cac9c205-46d5-476a-8993-1271534358cc/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-26 00:14:10,347 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cac9c205-46d5-476a-8993-1271534358cc/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-26 00:14:12,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:14:12,085 INFO L263 TraceCheckSpWp]: Trace formula consists of 4675 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-26 00:14:12,095 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:14:12,130 INFO L134 CoverageAnalysis]: Checked inductivity of 789 backedges. 272 proven. 0 refuted. 0 times theorem prover too weak. 517 trivial. 0 not checked. [2022-11-26 00:14:12,130 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-26 00:14:12,131 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:14:12,131 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1274421011] [2022-11-26 00:14:12,131 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-26 00:14:12,131 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2921908] [2022-11-26 00:14:12,131 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2921908] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:14:12,131 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:14:12,132 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-26 00:14:12,132 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [749071564] [2022-11-26 00:14:12,132 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:14:12,133 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-26 00:14:12,133 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:14:12,134 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-26 00:14:12,134 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-26 00:14:12,134 INFO L87 Difference]: Start difference. First operand 14926 states and 20288 transitions. Second operand has 4 states, 4 states have (on average 42.25) internal successors, (169), 4 states have internal predecessors, (169), 2 states have call successors, (56), 2 states have call predecessors, (56), 2 states have return successors, (55), 2 states have call predecessors, (55), 2 states have call successors, (55) [2022-11-26 00:14:17,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:14:17,893 INFO L93 Difference]: Finished difference Result 29842 states and 40648 transitions. [2022-11-26 00:14:17,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-26 00:14:17,894 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 42.25) internal successors, (169), 4 states have internal predecessors, (169), 2 states have call successors, (56), 2 states have call predecessors, (56), 2 states have return successors, (55), 2 states have call predecessors, (55), 2 states have call successors, (55) Word has length 401 [2022-11-26 00:14:17,894 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:14:17,936 INFO L225 Difference]: With dead ends: 29842 [2022-11-26 00:14:17,936 INFO L226 Difference]: Without dead ends: 14986 [2022-11-26 00:14:17,971 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 401 GetRequests, 398 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-26 00:14:17,972 INFO L413 NwaCegarLoop]: 2419 mSDtfsCounter, 13 mSDsluCounter, 4819 mSDsCounter, 0 mSdLazyCounter, 944 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 7238 SdHoareTripleChecker+Invalid, 950 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 944 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2022-11-26 00:14:17,972 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 7238 Invalid, 950 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 944 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time] [2022-11-26 00:14:17,985 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14986 states. [2022-11-26 00:14:19,082 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14986 to 14938. [2022-11-26 00:14:19,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14938 states, 8496 states have (on average 1.2177495291902072) internal successors, (10346), 8860 states have internal predecessors, (10346), 4955 states have call successors, (4955), 1497 states have call predecessors, (4955), 1485 states have return successors, (4999), 4844 states have call predecessors, (4999), 4955 states have call successors, (4999) [2022-11-26 00:14:19,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14938 states to 14938 states and 20300 transitions. [2022-11-26 00:14:19,148 INFO L78 Accepts]: Start accepts. Automaton has 14938 states and 20300 transitions. Word has length 401 [2022-11-26 00:14:19,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:14:19,148 INFO L495 AbstractCegarLoop]: Abstraction has 14938 states and 20300 transitions. [2022-11-26 00:14:19,148 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 42.25) internal successors, (169), 4 states have internal predecessors, (169), 2 states have call successors, (56), 2 states have call predecessors, (56), 2 states have return successors, (55), 2 states have call predecessors, (55), 2 states have call successors, (55) [2022-11-26 00:14:19,149 INFO L276 IsEmpty]: Start isEmpty. Operand 14938 states and 20300 transitions. [2022-11-26 00:14:19,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 431 [2022-11-26 00:14:19,262 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:14:19,262 INFO L195 NwaCegarLoop]: trace histogram [17, 12, 12, 9, 9, 9, 9, 9, 9, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:14:19,280 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cac9c205-46d5-476a-8993-1271534358cc/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-11-26 00:14:19,463 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cac9c205-46d5-476a-8993-1271534358cc/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:14:19,463 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)] === [2022-11-26 00:14:19,464 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:14:19,464 INFO L85 PathProgramCache]: Analyzing trace with hash -467985871, now seen corresponding path program 1 times [2022-11-26 00:14:19,464 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:14:19,464 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1182405700] [2022-11-26 00:14:19,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:14:19,464 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:14:19,650 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-26 00:14:19,650 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1027488958] [2022-11-26 00:14:19,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:14:19,651 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:14:19,651 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cac9c205-46d5-476a-8993-1271534358cc/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:14:19,652 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cac9c205-46d5-476a-8993-1271534358cc/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-26 00:14:19,675 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cac9c205-46d5-476a-8993-1271534358cc/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-26 00:14:21,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:14:21,527 INFO L263 TraceCheckSpWp]: Trace formula consists of 5052 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-26 00:14:21,539 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:14:21,570 INFO L134 CoverageAnalysis]: Checked inductivity of 880 backedges. 242 proven. 0 refuted. 0 times theorem prover too weak. 638 trivial. 0 not checked. [2022-11-26 00:14:21,570 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-26 00:14:21,571 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:14:21,571 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1182405700] [2022-11-26 00:14:21,571 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-26 00:14:21,571 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1027488958] [2022-11-26 00:14:21,571 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1027488958] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:14:21,571 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:14:21,572 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-26 00:14:21,572 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1590500310] [2022-11-26 00:14:21,572 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:14:21,573 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-26 00:14:21,573 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:14:21,574 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-26 00:14:21,574 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-26 00:14:21,574 INFO L87 Difference]: Start difference. First operand 14938 states and 20300 transitions. Second operand has 4 states, 4 states have (on average 42.25) internal successors, (169), 4 states have internal predecessors, (169), 2 states have call successors, (57), 2 states have call predecessors, (57), 2 states have return successors, (56), 2 states have call predecessors, (56), 2 states have call successors, (56) [2022-11-26 00:14:26,443 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:14:26,443 INFO L93 Difference]: Finished difference Result 29872 states and 40684 transitions. [2022-11-26 00:14:26,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-26 00:14:26,444 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 42.25) internal successors, (169), 4 states have internal predecessors, (169), 2 states have call successors, (57), 2 states have call predecessors, (57), 2 states have return successors, (56), 2 states have call predecessors, (56), 2 states have call successors, (56) Word has length 430 [2022-11-26 00:14:26,444 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:14:26,495 INFO L225 Difference]: With dead ends: 29872 [2022-11-26 00:14:26,495 INFO L226 Difference]: Without dead ends: 15004 [2022-11-26 00:14:26,540 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 430 GetRequests, 427 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-26 00:14:26,540 INFO L413 NwaCegarLoop]: 2421 mSDtfsCounter, 13 mSDsluCounter, 4822 mSDsCounter, 0 mSdLazyCounter, 945 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 7243 SdHoareTripleChecker+Invalid, 951 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 945 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2022-11-26 00:14:26,541 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 7243 Invalid, 951 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 945 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2022-11-26 00:14:26,555 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15004 states. [2022-11-26 00:14:27,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15004 to 14950. [2022-11-26 00:14:27,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14950 states, 8508 states have (on average 1.2174424071462153) internal successors, (10358), 8872 states have internal predecessors, (10358), 4955 states have call successors, (4955), 1497 states have call predecessors, (4955), 1485 states have return successors, (4999), 4844 states have call predecessors, (4999), 4955 states have call successors, (4999) [2022-11-26 00:14:27,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14950 states to 14950 states and 20312 transitions. [2022-11-26 00:14:27,881 INFO L78 Accepts]: Start accepts. Automaton has 14950 states and 20312 transitions. Word has length 430 [2022-11-26 00:14:27,882 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:14:27,882 INFO L495 AbstractCegarLoop]: Abstraction has 14950 states and 20312 transitions. [2022-11-26 00:14:27,882 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 42.25) internal successors, (169), 4 states have internal predecessors, (169), 2 states have call successors, (57), 2 states have call predecessors, (57), 2 states have return successors, (56), 2 states have call predecessors, (56), 2 states have call successors, (56) [2022-11-26 00:14:27,882 INFO L276 IsEmpty]: Start isEmpty. Operand 14950 states and 20312 transitions. [2022-11-26 00:14:27,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 437 [2022-11-26 00:14:27,893 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:14:27,894 INFO L195 NwaCegarLoop]: trace histogram [17, 12, 12, 9, 9, 9, 9, 9, 9, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 4, 3, 3, 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] [2022-11-26 00:14:27,915 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cac9c205-46d5-476a-8993-1271534358cc/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-11-26 00:14:28,107 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cac9c205-46d5-476a-8993-1271534358cc/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:14:28,107 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)] === [2022-11-26 00:14:28,108 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:14:28,108 INFO L85 PathProgramCache]: Analyzing trace with hash -1642785809, now seen corresponding path program 1 times [2022-11-26 00:14:28,108 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:14:28,108 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1565063910] [2022-11-26 00:14:28,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:14:28,108 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:14:28,276 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-26 00:14:28,276 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [260522465] [2022-11-26 00:14:28,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:14:28,276 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:14:28,277 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cac9c205-46d5-476a-8993-1271534358cc/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:14:28,278 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cac9c205-46d5-476a-8993-1271534358cc/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-26 00:14:28,312 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cac9c205-46d5-476a-8993-1271534358cc/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-26 00:14:30,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:14:30,145 INFO L263 TraceCheckSpWp]: Trace formula consists of 5108 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-26 00:14:30,158 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:14:30,195 INFO L134 CoverageAnalysis]: Checked inductivity of 885 backedges. 170 proven. 0 refuted. 0 times theorem prover too weak. 715 trivial. 0 not checked. [2022-11-26 00:14:30,195 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-26 00:14:30,195 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:14:30,195 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1565063910] [2022-11-26 00:14:30,196 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-26 00:14:30,196 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [260522465] [2022-11-26 00:14:30,196 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [260522465] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:14:30,196 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:14:30,196 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-26 00:14:30,197 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1197915260] [2022-11-26 00:14:30,197 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:14:30,197 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-26 00:14:30,198 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:14:30,198 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-26 00:14:30,199 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-26 00:14:30,199 INFO L87 Difference]: Start difference. First operand 14950 states and 20312 transitions. Second operand has 4 states, 4 states have (on average 41.75) internal successors, (167), 4 states have internal predecessors, (167), 2 states have call successors, (57), 2 states have call predecessors, (57), 2 states have return successors, (56), 2 states have call predecessors, (56), 2 states have call successors, (56) [2022-11-26 00:14:35,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:14:35,070 INFO L93 Difference]: Finished difference Result 29902 states and 40716 transitions. [2022-11-26 00:14:35,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-26 00:14:35,071 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 41.75) internal successors, (167), 4 states have internal predecessors, (167), 2 states have call successors, (57), 2 states have call predecessors, (57), 2 states have return successors, (56), 2 states have call predecessors, (56), 2 states have call successors, (56) Word has length 436 [2022-11-26 00:14:35,071 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:14:35,121 INFO L225 Difference]: With dead ends: 29902 [2022-11-26 00:14:35,121 INFO L226 Difference]: Without dead ends: 15022 [2022-11-26 00:14:35,164 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 436 GetRequests, 433 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-26 00:14:35,165 INFO L413 NwaCegarLoop]: 2423 mSDtfsCounter, 13 mSDsluCounter, 4825 mSDsCounter, 0 mSdLazyCounter, 944 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 7248 SdHoareTripleChecker+Invalid, 952 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 944 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2022-11-26 00:14:35,165 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 7248 Invalid, 952 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 944 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2022-11-26 00:14:35,186 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15022 states. [2022-11-26 00:14:36,430 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15022 to 14962. [2022-11-26 00:14:36,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14962 states, 8520 states have (on average 1.2171361502347418) internal successors, (10370), 8884 states have internal predecessors, (10370), 4955 states have call successors, (4955), 1497 states have call predecessors, (4955), 1485 states have return successors, (4999), 4844 states have call predecessors, (4999), 4955 states have call successors, (4999) [2022-11-26 00:14:36,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14962 states to 14962 states and 20324 transitions. [2022-11-26 00:14:36,492 INFO L78 Accepts]: Start accepts. Automaton has 14962 states and 20324 transitions. Word has length 436 [2022-11-26 00:14:36,492 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:14:36,493 INFO L495 AbstractCegarLoop]: Abstraction has 14962 states and 20324 transitions. [2022-11-26 00:14:36,493 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 41.75) internal successors, (167), 4 states have internal predecessors, (167), 2 states have call successors, (57), 2 states have call predecessors, (57), 2 states have return successors, (56), 2 states have call predecessors, (56), 2 states have call successors, (56) [2022-11-26 00:14:36,493 INFO L276 IsEmpty]: Start isEmpty. Operand 14962 states and 20324 transitions. [2022-11-26 00:14:36,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 438 [2022-11-26 00:14:36,505 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:14:36,505 INFO L195 NwaCegarLoop]: trace histogram [17, 12, 12, 9, 9, 9, 9, 9, 9, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 4, 3, 3, 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] [2022-11-26 00:14:36,527 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cac9c205-46d5-476a-8993-1271534358cc/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-26 00:14:36,722 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cac9c205-46d5-476a-8993-1271534358cc/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2022-11-26 00:14:36,723 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)] === [2022-11-26 00:14:36,723 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:14:36,723 INFO L85 PathProgramCache]: Analyzing trace with hash -383748211, now seen corresponding path program 1 times [2022-11-26 00:14:36,723 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:14:36,723 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [399718793] [2022-11-26 00:14:36,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:14:36,724 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:14:36,905 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-26 00:14:36,905 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2059520999] [2022-11-26 00:14:36,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:14:36,906 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:14:36,906 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cac9c205-46d5-476a-8993-1271534358cc/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:14:36,907 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cac9c205-46d5-476a-8993-1271534358cc/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-26 00:14:36,931 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cac9c205-46d5-476a-8993-1271534358cc/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-26 00:14:38,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:14:38,851 INFO L263 TraceCheckSpWp]: Trace formula consists of 5110 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-26 00:14:38,864 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:14:38,897 INFO L134 CoverageAnalysis]: Checked inductivity of 886 backedges. 170 proven. 1 refuted. 0 times theorem prover too weak. 715 trivial. 0 not checked. [2022-11-26 00:14:38,897 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-26 00:14:39,553 INFO L134 CoverageAnalysis]: Checked inductivity of 886 backedges. 14 proven. 1 refuted. 0 times theorem prover too weak. 871 trivial. 0 not checked. [2022-11-26 00:14:39,553 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:14:39,553 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [399718793] [2022-11-26 00:14:39,553 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-26 00:14:39,554 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2059520999] [2022-11-26 00:14:39,554 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2059520999] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-26 00:14:39,554 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1603285461] [2022-11-26 00:14:39,584 INFO L159 IcfgInterpreter]: Started Sifa with 237 locations of interest [2022-11-26 00:14:39,584 INFO L166 IcfgInterpreter]: Building call graph [2022-11-26 00:14:39,589 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-26 00:14:39,594 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-26 00:14:39,595 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-26 00:22:36,333 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2022-11-26 00:22:36,347 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-26 00:22:36,906 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-26 00:22:36,955 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-26 00:22:37,081 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-26 00:22:37,135 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-26 00:23:06,588 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-26 00:23:06,627 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-26 00:23:06,704 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-26 00:23:06,707 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-26 00:23:07,651 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-26 00:23:07,712 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-26 00:23:07,773 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-26 00:23:07,781 WARN L207 Elim1Store]: Array PQE input equivalent to false