./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-challenges/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-amd-pcnet32.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 38b53e6a Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5b5dcfc-29ec-470d-a6c5-8c1f4040ac18/bin/utaipan-ByfvJB40ur/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5b5dcfc-29ec-470d-a6c5-8c1f4040ac18/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_c5b5dcfc-29ec-470d-a6c5-8c1f4040ac18/bin/utaipan-ByfvJB40ur/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5b5dcfc-29ec-470d-a6c5-8c1f4040ac18/bin/utaipan-ByfvJB40ur/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-challenges/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-amd-pcnet32.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5b5dcfc-29ec-470d-a6c5-8c1f4040ac18/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_c5b5dcfc-29ec-470d-a6c5-8c1f4040ac18/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 5afcd851c0eed3ee93d773a0172936a989a39cd6889ca2587c3b833a21bc8a3a --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-38b53e6 [2022-11-26 00:25:24,004 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-26 00:25:24,007 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-26 00:25:24,034 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-26 00:25:24,035 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-26 00:25:24,036 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-26 00:25:24,037 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-26 00:25:24,040 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-26 00:25:24,042 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-26 00:25:24,045 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-26 00:25:24,047 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-26 00:25:24,052 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-26 00:25:24,053 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-26 00:25:24,062 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-26 00:25:24,065 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-26 00:25:24,066 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-26 00:25:24,067 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-26 00:25:24,068 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-26 00:25:24,070 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-26 00:25:24,072 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-26 00:25:24,074 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-26 00:25:24,079 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-26 00:25:24,082 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-26 00:25:24,083 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-26 00:25:24,087 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-26 00:25:24,087 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-26 00:25:24,088 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-26 00:25:24,089 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-26 00:25:24,090 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-26 00:25:24,091 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-26 00:25:24,091 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-26 00:25:24,092 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-26 00:25:24,093 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-26 00:25:24,094 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-26 00:25:24,095 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-26 00:25:24,096 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-26 00:25:24,096 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-26 00:25:24,097 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-26 00:25:24,097 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-26 00:25:24,098 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-26 00:25:24,099 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-26 00:25:24,100 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5b5dcfc-29ec-470d-a6c5-8c1f4040ac18/bin/utaipan-ByfvJB40ur/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-26 00:25:24,123 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-26 00:25:24,123 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-26 00:25:24,124 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-26 00:25:24,124 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-26 00:25:24,125 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-26 00:25:24,125 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-26 00:25:24,125 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-26 00:25:24,126 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-26 00:25:24,126 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-26 00:25:24,126 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-26 00:25:24,126 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-26 00:25:24,126 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-26 00:25:24,127 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-26 00:25:24,127 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-26 00:25:24,127 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-26 00:25:24,127 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-26 00:25:24,128 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-26 00:25:24,128 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-26 00:25:24,129 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-26 00:25:24,129 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-26 00:25:24,129 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-26 00:25:24,130 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-26 00:25:24,130 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-26 00:25:24,130 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-26 00:25:24,130 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-26 00:25:24,131 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-26 00:25:24,131 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-26 00:25:24,131 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-26 00:25:24,131 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-26 00:25:24,132 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-26 00:25:24,132 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-26 00:25:24,132 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-26 00:25:24,132 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-26 00:25:24,133 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-26 00:25:24,133 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-26 00:25:24,133 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-26 00:25:24,133 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-26 00:25:24,134 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-26 00:25:24,134 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_c5b5dcfc-29ec-470d-a6c5-8c1f4040ac18/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5b5dcfc-29ec-470d-a6c5-8c1f4040ac18/bin/utaipan-ByfvJB40ur Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5afcd851c0eed3ee93d773a0172936a989a39cd6889ca2587c3b833a21bc8a3a [2022-11-26 00:25:24,407 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-26 00:25:24,486 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-26 00:25:24,489 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-26 00:25:24,491 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-26 00:25:24,491 INFO L275 PluginConnector]: CDTParser initialized [2022-11-26 00:25:24,493 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5b5dcfc-29ec-470d-a6c5-8c1f4040ac18/bin/utaipan-ByfvJB40ur/../../sv-benchmarks/c/ldv-challenges/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-amd-pcnet32.cil.i [2022-11-26 00:25:27,541 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-26 00:25:28,300 INFO L351 CDTParser]: Found 1 translation units. [2022-11-26 00:25:28,301 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5b5dcfc-29ec-470d-a6c5-8c1f4040ac18/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-amd-pcnet32.cil.i [2022-11-26 00:25:28,367 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5b5dcfc-29ec-470d-a6c5-8c1f4040ac18/bin/utaipan-ByfvJB40ur/data/4f6719585/6a3365f4fff44ef2a460639594ec3755/FLAGd25e2b155 [2022-11-26 00:25:28,390 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5b5dcfc-29ec-470d-a6c5-8c1f4040ac18/bin/utaipan-ByfvJB40ur/data/4f6719585/6a3365f4fff44ef2a460639594ec3755 [2022-11-26 00:25:28,396 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-26 00:25:28,399 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-26 00:25:28,402 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-26 00:25:28,402 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-26 00:25:28,406 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-26 00:25:28,407 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:25:28" (1/1) ... [2022-11-26 00:25:28,408 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@35a41a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:25:28, skipping insertion in model container [2022-11-26 00:25:28,409 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:25:28" (1/1) ... [2022-11-26 00:25:28,417 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-26 00:25:28,612 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-26 00:25:29,588 WARN L623 FunctionHandler]: Unknown extern function __local_bh_disable_ip [2022-11-26 00:25:29,598 WARN L623 FunctionHandler]: Unknown extern function __local_bh_enable_ip [2022-11-26 00:25:29,626 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock [2022-11-26 00:25:29,640 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_unlock [2022-11-26 00:25:29,654 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_unlock_irqrestore [2022-11-26 00:25:29,786 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-26 00:25:29,863 WARN L623 FunctionHandler]: Unknown extern function __phys_addr [2022-11-26 00:25:29,868 WARN L623 FunctionHandler]: Unknown extern function __phys_addr [2022-11-26 00:25:29,869 WARN L623 FunctionHandler]: Unknown extern function debug_dma_map_page [2022-11-26 00:25:29,877 WARN L623 FunctionHandler]: Unknown extern function debug_dma_unmap_page [2022-11-26 00:25:29,885 WARN L623 FunctionHandler]: Unknown extern function debug_dma_sync_single_for_cpu [2022-11-26 00:25:29,892 WARN L623 FunctionHandler]: Unknown extern function debug_dma_sync_single_for_device [2022-11-26 00:25:29,917 WARN L623 FunctionHandler]: Unknown extern function debug_dma_alloc_coherent [2022-11-26 00:25:29,925 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-11-26 00:25:29,928 WARN L623 FunctionHandler]: Unknown extern function debug_dma_free_coherent [2022-11-26 00:25:29,957 WARN L623 FunctionHandler]: Unknown extern function __netdev_alloc_skb [2022-11-26 00:25:29,997 WARN L623 FunctionHandler]: Unknown extern function __might_sleep [2022-11-26 00:25:29,998 WARN L623 FunctionHandler]: Unknown extern function msleep [2022-11-26 00:25:30,059 WARN L623 FunctionHandler]: Unknown extern function netpoll_trap [2022-11-26 00:25:30,060 WARN L623 FunctionHandler]: Unknown extern function __netif_schedule [2022-11-26 00:25:30,072 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-11-26 00:25:30,073 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:25:30,108 WARN L623 FunctionHandler]: Unknown extern function __dev_kfree_skb_any [2022-11-26 00:25:30,163 WARN L623 FunctionHandler]: Unknown extern function __bad_percpu_size [2022-11-26 00:25:30,164 WARN L623 FunctionHandler]: Unknown extern function __bad_percpu_size [2022-11-26 00:25:30,165 WARN L623 FunctionHandler]: Unknown extern function __bad_percpu_size [2022-11-26 00:25:30,166 WARN L623 FunctionHandler]: Unknown extern function __bad_percpu_size [2022-11-26 00:25:30,166 WARN L623 FunctionHandler]: Unknown extern function __bad_size_call_parameter [2022-11-26 00:25:30,255 WARN L623 FunctionHandler]: Unknown extern function dma_supported [2022-11-26 00:25:30,314 WARN L623 FunctionHandler]: Unknown extern function request_threaded_irq [2022-11-26 00:25:30,623 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-11-26 00:25:30,625 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-26 00:25:30,626 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-26 00:25:30,628 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-26 00:25:30,636 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-11-26 00:25:30,641 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-11-26 00:25:30,644 WARN L623 FunctionHandler]: Unknown extern function consume_skb [2022-11-26 00:25:30,645 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-26 00:25:30,646 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-26 00:25:30,649 WARN L623 FunctionHandler]: Unknown extern function consume_skb [2022-11-26 00:25:30,650 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-26 00:25:30,650 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-26 00:25:30,665 WARN L623 FunctionHandler]: Unknown extern function disable_irq [2022-11-26 00:25:30,666 WARN L623 FunctionHandler]: Unknown extern function enable_irq [2022-11-26 00:25:30,673 WARN L623 FunctionHandler]: Unknown extern function mii_ethtool_gset [2022-11-26 00:25:30,681 WARN L623 FunctionHandler]: Unknown extern function mii_ethtool_sset [2022-11-26 00:25:30,687 WARN L623 FunctionHandler]: Unknown extern function strlcpy [2022-11-26 00:25:30,690 WARN L623 FunctionHandler]: Unknown extern function strlcpy [2022-11-26 00:25:30,692 WARN L623 FunctionHandler]: Unknown extern function strlcpy [2022-11-26 00:25:30,700 WARN L623 FunctionHandler]: Unknown extern function mii_link_ok [2022-11-26 00:25:30,720 WARN L623 FunctionHandler]: Unknown extern function mii_nway_restart [2022-11-26 00:25:30,746 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-11-26 00:25:30,761 WARN L623 FunctionHandler]: Unknown extern function netdev_printk [2022-11-26 00:25:30,763 WARN L623 FunctionHandler]: Unknown extern function netdev_printk [2022-11-26 00:25:30,764 WARN L623 FunctionHandler]: Unknown extern function netdev_printk [2022-11-26 00:25:30,784 WARN L623 FunctionHandler]: Unknown extern function netdev_printk [2022-11-26 00:25:30,785 WARN L623 FunctionHandler]: Unknown extern function skb_put [2022-11-26 00:25:30,792 WARN L623 FunctionHandler]: Unknown extern function msleep [2022-11-26 00:25:30,799 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-11-26 00:25:30,801 WARN L623 FunctionHandler]: Unknown extern function netdev_printk [2022-11-26 00:25:30,803 WARN L623 FunctionHandler]: Unknown extern function netdev_printk [2022-11-26 00:25:30,805 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:25:30,806 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:25:30,808 WARN L623 FunctionHandler]: Unknown extern function netdev_printk [2022-11-26 00:25:30,831 WARN L623 FunctionHandler]: Unknown extern function msleep [2022-11-26 00:25:30,831 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-26 00:25:30,832 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-26 00:25:30,833 WARN L623 FunctionHandler]: Unknown extern function netdev_printk [2022-11-26 00:25:30,842 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-11-26 00:25:30,843 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-11-26 00:25:30,844 WARN L623 FunctionHandler]: Unknown extern function skb_put [2022-11-26 00:25:30,846 WARN L623 FunctionHandler]: Unknown extern function skb_put [2022-11-26 00:25:30,848 WARN L623 FunctionHandler]: Unknown extern function eth_type_trans [2022-11-26 00:25:30,848 WARN L623 FunctionHandler]: Unknown extern function netif_receive_skb [2022-11-26 00:25:30,874 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-11-26 00:25:30,876 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-11-26 00:25:30,881 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-11-26 00:25:30,893 WARN L623 FunctionHandler]: Unknown extern function __napi_complete [2022-11-26 00:25:30,918 WARN L623 FunctionHandler]: Unknown extern function __request_region [2022-11-26 00:25:30,920 WARN L623 FunctionHandler]: Unknown extern function __release_region [2022-11-26 00:25:30,921 WARN L623 FunctionHandler]: Unknown extern function __release_region [2022-11-26 00:25:30,922 WARN L623 FunctionHandler]: Unknown extern function pci_enable_device [2022-11-26 00:25:30,925 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:25:30,926 WARN L623 FunctionHandler]: Unknown extern function pci_set_master [2022-11-26 00:25:30,929 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:25:30,930 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:25:30,930 WARN L623 FunctionHandler]: Unknown extern function __request_region [2022-11-26 00:25:30,932 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:25:30,933 WARN L623 FunctionHandler]: Unknown extern function pci_disable_device [2022-11-26 00:25:30,938 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:25:30,941 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:25:30,943 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:25:30,950 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:25:30,952 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:25:30,955 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:25:30,958 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:25:30,959 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:25:30,962 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:25:30,963 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:25:30,965 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:25:30,966 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:25:30,966 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:25:30,967 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:25:30,968 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:25:30,968 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:25:30,969 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:25:30,969 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:25:30,970 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:25:30,970 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:25:30,971 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:25:30,975 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:25:30,976 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:25:30,977 WARN L623 FunctionHandler]: Unknown extern function __raw_spin_lock_init [2022-11-26 00:25:30,979 WARN L623 FunctionHandler]: Unknown extern function netif_napi_add [2022-11-26 00:25:30,984 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:25:30,985 WARN L623 FunctionHandler]: Unknown extern function probe_irq_on [2022-11-26 00:25:30,987 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-26 00:25:30,987 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-26 00:25:30,989 WARN L623 FunctionHandler]: Unknown extern function probe_irq_off [2022-11-26 00:25:30,990 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:25:30,990 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:25:30,993 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:25:30,997 WARN L623 FunctionHandler]: Unknown extern function init_timer_key [2022-11-26 00:25:30,999 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:25:31,010 WARN L623 FunctionHandler]: Unknown extern function __release_region [2022-11-26 00:25:31,018 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-11-26 00:25:31,020 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-11-26 00:25:31,024 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-26 00:25:31,030 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-26 00:25:31,030 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-26 00:25:31,031 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-26 00:25:31,035 WARN L623 FunctionHandler]: Unknown extern function netdev_printk [2022-11-26 00:25:31,047 WARN L623 FunctionHandler]: Unknown extern function netdev_printk [2022-11-26 00:25:31,058 WARN L623 FunctionHandler]: Unknown extern function mii_ethtool_gset [2022-11-26 00:25:31,058 WARN L623 FunctionHandler]: Unknown extern function mii_ethtool_sset [2022-11-26 00:25:31,059 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-11-26 00:25:31,064 WARN L623 FunctionHandler]: Unknown extern function netdev_printk [2022-11-26 00:25:31,084 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-11-26 00:25:31,093 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-11-26 00:25:31,096 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:25:31,098 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:25:31,102 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:25:31,104 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:25:31,107 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:25:31,111 WARN L623 FunctionHandler]: Unknown extern function netdev_printk [2022-11-26 00:25:31,151 WARN L623 FunctionHandler]: Unknown extern function netdev_printk [2022-11-26 00:25:31,154 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-11-26 00:25:31,156 WARN L623 FunctionHandler]: Unknown extern function __napi_schedule [2022-11-26 00:25:31,158 WARN L623 FunctionHandler]: Unknown extern function netdev_printk [2022-11-26 00:25:31,161 WARN L623 FunctionHandler]: Unknown extern function netdev_printk [2022-11-26 00:25:31,166 WARN L623 FunctionHandler]: Unknown extern function crc32_le [2022-11-26 00:25:31,172 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-11-26 00:25:31,181 WARN L623 FunctionHandler]: Unknown extern function generic_mii_ioctl [2022-11-26 00:25:31,189 WARN L623 FunctionHandler]: Unknown extern function mii_link_ok [2022-11-26 00:25:31,190 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-11-26 00:25:31,199 WARN L623 FunctionHandler]: Unknown extern function mii_link_ok [2022-11-26 00:25:31,200 WARN L623 FunctionHandler]: Unknown extern function netif_carrier_off [2022-11-26 00:25:31,200 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-11-26 00:25:31,201 WARN L623 FunctionHandler]: Unknown extern function netif_carrier_on [2022-11-26 00:25:31,203 WARN L623 FunctionHandler]: Unknown extern function mii_ethtool_gset [2022-11-26 00:25:31,203 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-11-26 00:25:31,208 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-11-26 00:25:31,210 WARN L623 FunctionHandler]: Unknown extern function round_jiffies [2022-11-26 00:25:31,216 WARN L623 FunctionHandler]: Unknown extern function netif_device_detach [2022-11-26 00:25:31,217 WARN L623 FunctionHandler]: Unknown extern function pci_save_state [2022-11-26 00:25:31,217 WARN L623 FunctionHandler]: Unknown extern function pci_choose_state [2022-11-26 00:25:31,217 WARN L623 FunctionHandler]: Unknown extern function pci_set_power_state [2022-11-26 00:25:31,223 WARN L623 FunctionHandler]: Unknown extern function pci_set_power_state [2022-11-26 00:25:31,225 WARN L623 FunctionHandler]: Unknown extern function pci_restore_state [2022-11-26 00:25:31,225 WARN L623 FunctionHandler]: Unknown extern function netif_device_attach [2022-11-26 00:25:31,232 WARN L623 FunctionHandler]: Unknown extern function __release_region [2022-11-26 00:25:31,233 WARN L623 FunctionHandler]: Unknown extern function pci_disable_device [2022-11-26 00:25:31,243 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:25:31,247 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:25:31,255 WARN L623 FunctionHandler]: Unknown extern function __release_region [2022-11-26 00:25:31,685 WARN L623 FunctionHandler]: Unknown extern function eth_change_mtu [2022-11-26 00:25:31,686 WARN L623 FunctionHandler]: Unknown extern function eth_mac_addr [2022-11-26 00:25:31,687 WARN L623 FunctionHandler]: Unknown extern function eth_validate_addr [2022-11-26 00:25:31,690 WARN L623 FunctionHandler]: Unknown extern function ldv_initialize [2022-11-26 00:25:31,693 WARN L623 FunctionHandler]: Unknown extern function ldv_switch_to_interrupt_context [2022-11-26 00:25:31,693 WARN L623 FunctionHandler]: Unknown extern function ldv_switch_to_process_context [2022-11-26 00:25:31,703 WARN L623 FunctionHandler]: Unknown extern function ldv_pre_probe [2022-11-26 00:25:31,706 WARN L623 FunctionHandler]: Unknown extern function ldv_pre_register_netdev [2022-11-26 00:25:31,719 WARN L623 FunctionHandler]: Unknown extern function ldv_switch_to_interrupt_context [2022-11-26 00:25:31,719 WARN L623 FunctionHandler]: Unknown extern function ldv_switch_to_process_context [2022-11-26 00:25:31,721 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-11-26 00:25:31,722 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-11-26 00:25:31,722 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-11-26 00:25:31,722 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-11-26 00:25:31,723 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-11-26 00:25:31,723 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-11-26 00:25:31,723 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-11-26 00:25:31,724 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-11-26 00:25:31,725 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-11-26 00:25:31,726 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-11-26 00:25:31,726 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-11-26 00:25:31,726 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-11-26 00:25:31,728 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-11-26 00:25:31,728 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-11-26 00:25:31,729 WARN L623 FunctionHandler]: Unknown extern function alloc_etherdev_mqs [2022-11-26 00:25:31,730 WARN L623 FunctionHandler]: Unknown extern function register_netdev [2022-11-26 00:25:31,731 WARN L623 FunctionHandler]: Unknown extern function free_netdev [2022-11-26 00:25:31,733 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-11-26 00:25:31,734 WARN L623 FunctionHandler]: Unknown extern function mod_timer [2022-11-26 00:25:31,734 WARN L623 FunctionHandler]: Unknown extern function free_irq [2022-11-26 00:25:31,736 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-11-26 00:25:31,736 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-11-26 00:25:31,745 WARN L623 FunctionHandler]: Unknown extern function del_timer_sync [2022-11-26 00:25:31,746 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-11-26 00:25:31,746 WARN L623 FunctionHandler]: Unknown extern function free_irq [2022-11-26 00:25:31,747 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-11-26 00:25:31,747 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-11-26 00:25:31,747 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-11-26 00:25:31,748 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-11-26 00:25:31,749 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-11-26 00:25:31,749 WARN L623 FunctionHandler]: Unknown extern function mod_timer [2022-11-26 00:25:31,750 WARN L623 FunctionHandler]: Unknown extern function unregister_netdev [2022-11-26 00:25:31,750 WARN L623 FunctionHandler]: Unknown extern function free_netdev [2022-11-26 00:25:31,751 WARN L623 FunctionHandler]: Unknown extern function __pci_register_driver [2022-11-26 00:25:31,753 WARN L623 FunctionHandler]: Unknown extern function unregister_netdev [2022-11-26 00:25:31,754 WARN L623 FunctionHandler]: Unknown extern function free_netdev [2022-11-26 00:25:31,754 WARN L623 FunctionHandler]: Unknown extern function pci_unregister_driver [2022-11-26 00:25:31,816 WARN L623 FunctionHandler]: Unknown extern function ldv_check_alloc_flags [2022-11-26 00:25:31,817 WARN L623 FunctionHandler]: Unknown extern function ldv_after_alloc [2022-11-26 00:25:31,827 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-26 00:25:32,489 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_c5b5dcfc-29ec-470d-a6c5-8c1f4040ac18/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-amd-pcnet32.cil.i[410165,410178] [2022-11-26 00:25:32,495 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_c5b5dcfc-29ec-470d-a6c5-8c1f4040ac18/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-amd-pcnet32.cil.i[410334,410347] [2022-11-26 00:25:32,495 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_c5b5dcfc-29ec-470d-a6c5-8c1f4040ac18/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-amd-pcnet32.cil.i[410501,410514] [2022-11-26 00:25:32,502 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_c5b5dcfc-29ec-470d-a6c5-8c1f4040ac18/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-amd-pcnet32.cil.i[410669,410682] [2022-11-26 00:25:32,504 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-26 00:25:32,505 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-26 00:25:32,512 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-26 00:25:32,515 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-26 00:25:32,542 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-26 00:25:32,595 INFO L203 MainTranslator]: Completed pre-run [2022-11-26 00:25:32,752 WARN L623 FunctionHandler]: Unknown extern function __local_bh_disable_ip [2022-11-26 00:25:32,753 WARN L623 FunctionHandler]: Unknown extern function __local_bh_enable_ip [2022-11-26 00:25:32,754 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock [2022-11-26 00:25:32,754 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_unlock [2022-11-26 00:25:32,755 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_unlock_irqrestore [2022-11-26 00:25:32,757 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-26 00:25:32,764 WARN L623 FunctionHandler]: Unknown extern function __phys_addr [2022-11-26 00:25:32,765 WARN L623 FunctionHandler]: Unknown extern function __phys_addr [2022-11-26 00:25:32,765 WARN L623 FunctionHandler]: Unknown extern function debug_dma_map_page [2022-11-26 00:25:32,767 WARN L623 FunctionHandler]: Unknown extern function debug_dma_unmap_page [2022-11-26 00:25:32,769 WARN L623 FunctionHandler]: Unknown extern function debug_dma_sync_single_for_cpu [2022-11-26 00:25:32,770 WARN L623 FunctionHandler]: Unknown extern function debug_dma_sync_single_for_device [2022-11-26 00:25:32,775 WARN L623 FunctionHandler]: Unknown extern function debug_dma_alloc_coherent [2022-11-26 00:25:32,776 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-11-26 00:25:32,777 WARN L623 FunctionHandler]: Unknown extern function debug_dma_free_coherent [2022-11-26 00:25:32,778 WARN L623 FunctionHandler]: Unknown extern function __netdev_alloc_skb [2022-11-26 00:25:32,780 WARN L623 FunctionHandler]: Unknown extern function __might_sleep [2022-11-26 00:25:32,781 WARN L623 FunctionHandler]: Unknown extern function msleep [2022-11-26 00:25:32,787 WARN L623 FunctionHandler]: Unknown extern function netpoll_trap [2022-11-26 00:25:32,787 WARN L623 FunctionHandler]: Unknown extern function __netif_schedule [2022-11-26 00:25:32,789 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-11-26 00:25:32,790 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:25:32,792 WARN L623 FunctionHandler]: Unknown extern function __dev_kfree_skb_any [2022-11-26 00:25:32,796 WARN L623 FunctionHandler]: Unknown extern function __bad_percpu_size [2022-11-26 00:25:32,796 WARN L623 FunctionHandler]: Unknown extern function __bad_percpu_size [2022-11-26 00:25:32,797 WARN L623 FunctionHandler]: Unknown extern function __bad_percpu_size [2022-11-26 00:25:32,797 WARN L623 FunctionHandler]: Unknown extern function __bad_percpu_size [2022-11-26 00:25:32,798 WARN L623 FunctionHandler]: Unknown extern function __bad_size_call_parameter [2022-11-26 00:25:32,799 WARN L623 FunctionHandler]: Unknown extern function dma_supported [2022-11-26 00:25:32,805 WARN L623 FunctionHandler]: Unknown extern function request_threaded_irq [2022-11-26 00:25:32,822 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-11-26 00:25:32,824 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-26 00:25:32,824 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-26 00:25:32,825 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-26 00:25:32,827 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-11-26 00:25:32,830 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-11-26 00:25:32,832 WARN L623 FunctionHandler]: Unknown extern function consume_skb [2022-11-26 00:25:32,833 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-26 00:25:32,834 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-26 00:25:32,841 WARN L623 FunctionHandler]: Unknown extern function consume_skb [2022-11-26 00:25:32,842 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-26 00:25:32,842 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-26 00:25:32,845 WARN L623 FunctionHandler]: Unknown extern function disable_irq [2022-11-26 00:25:32,845 WARN L623 FunctionHandler]: Unknown extern function enable_irq [2022-11-26 00:25:32,846 WARN L623 FunctionHandler]: Unknown extern function mii_ethtool_gset [2022-11-26 00:25:32,847 WARN L623 FunctionHandler]: Unknown extern function mii_ethtool_sset [2022-11-26 00:25:32,848 WARN L623 FunctionHandler]: Unknown extern function strlcpy [2022-11-26 00:25:32,850 WARN L623 FunctionHandler]: Unknown extern function strlcpy [2022-11-26 00:25:32,851 WARN L623 FunctionHandler]: Unknown extern function strlcpy [2022-11-26 00:25:32,853 WARN L623 FunctionHandler]: Unknown extern function mii_link_ok [2022-11-26 00:25:32,856 WARN L623 FunctionHandler]: Unknown extern function mii_nway_restart [2022-11-26 00:25:32,860 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-11-26 00:25:32,861 WARN L623 FunctionHandler]: Unknown extern function netdev_printk [2022-11-26 00:25:32,864 WARN L623 FunctionHandler]: Unknown extern function netdev_printk [2022-11-26 00:25:32,865 WARN L623 FunctionHandler]: Unknown extern function netdev_printk [2022-11-26 00:25:32,868 WARN L623 FunctionHandler]: Unknown extern function netdev_printk [2022-11-26 00:25:32,870 WARN L623 FunctionHandler]: Unknown extern function skb_put [2022-11-26 00:25:32,875 WARN L623 FunctionHandler]: Unknown extern function msleep [2022-11-26 00:25:32,876 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-11-26 00:25:32,878 WARN L623 FunctionHandler]: Unknown extern function netdev_printk [2022-11-26 00:25:32,878 WARN L623 FunctionHandler]: Unknown extern function netdev_printk [2022-11-26 00:25:32,879 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:25:32,881 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:25:32,882 WARN L623 FunctionHandler]: Unknown extern function netdev_printk [2022-11-26 00:25:32,889 WARN L623 FunctionHandler]: Unknown extern function msleep [2022-11-26 00:25:32,890 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-26 00:25:32,890 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-26 00:25:32,891 WARN L623 FunctionHandler]: Unknown extern function netdev_printk [2022-11-26 00:25:32,894 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-11-26 00:25:32,895 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-11-26 00:25:32,896 WARN L623 FunctionHandler]: Unknown extern function skb_put [2022-11-26 00:25:32,897 WARN L623 FunctionHandler]: Unknown extern function skb_put [2022-11-26 00:25:32,901 WARN L623 FunctionHandler]: Unknown extern function eth_type_trans [2022-11-26 00:25:32,901 WARN L623 FunctionHandler]: Unknown extern function netif_receive_skb [2022-11-26 00:25:32,905 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-11-26 00:25:32,906 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-11-26 00:25:32,909 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-11-26 00:25:32,912 WARN L623 FunctionHandler]: Unknown extern function __napi_complete [2022-11-26 00:25:32,920 WARN L623 FunctionHandler]: Unknown extern function __request_region [2022-11-26 00:25:32,921 WARN L623 FunctionHandler]: Unknown extern function __release_region [2022-11-26 00:25:32,921 WARN L623 FunctionHandler]: Unknown extern function __release_region [2022-11-26 00:25:32,922 WARN L623 FunctionHandler]: Unknown extern function pci_enable_device [2022-11-26 00:25:32,923 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:25:32,923 WARN L623 FunctionHandler]: Unknown extern function pci_set_master [2022-11-26 00:25:32,924 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:25:32,928 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:25:32,929 WARN L623 FunctionHandler]: Unknown extern function __request_region [2022-11-26 00:25:32,929 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:25:32,930 WARN L623 FunctionHandler]: Unknown extern function pci_disable_device [2022-11-26 00:25:32,935 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:25:32,936 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:25:32,937 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:25:32,942 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:25:32,946 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:25:32,949 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:25:32,952 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:25:32,952 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:25:32,953 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:25:32,954 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:25:32,956 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:25:32,956 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:25:32,957 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:25:32,958 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:25:32,958 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:25:32,959 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:25:32,960 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:25:32,960 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:25:32,961 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:25:32,961 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:25:32,962 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:25:32,963 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:25:32,964 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:25:32,966 WARN L623 FunctionHandler]: Unknown extern function __raw_spin_lock_init [2022-11-26 00:25:32,968 WARN L623 FunctionHandler]: Unknown extern function netif_napi_add [2022-11-26 00:25:32,972 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:25:32,973 WARN L623 FunctionHandler]: Unknown extern function probe_irq_on [2022-11-26 00:25:32,974 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-26 00:25:32,974 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-26 00:25:32,975 WARN L623 FunctionHandler]: Unknown extern function probe_irq_off [2022-11-26 00:25:32,975 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:25:32,976 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:25:32,978 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:25:32,979 WARN L623 FunctionHandler]: Unknown extern function init_timer_key [2022-11-26 00:25:32,980 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:25:32,982 WARN L623 FunctionHandler]: Unknown extern function __release_region [2022-11-26 00:25:32,984 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-11-26 00:25:32,986 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-11-26 00:25:32,994 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-26 00:25:32,994 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-26 00:25:32,995 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-26 00:25:32,995 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-26 00:25:32,999 WARN L623 FunctionHandler]: Unknown extern function netdev_printk [2022-11-26 00:25:33,006 WARN L623 FunctionHandler]: Unknown extern function netdev_printk [2022-11-26 00:25:33,015 WARN L623 FunctionHandler]: Unknown extern function mii_ethtool_gset [2022-11-26 00:25:33,015 WARN L623 FunctionHandler]: Unknown extern function mii_ethtool_sset [2022-11-26 00:25:33,016 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-11-26 00:25:33,019 WARN L623 FunctionHandler]: Unknown extern function netdev_printk [2022-11-26 00:25:33,028 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-11-26 00:25:33,032 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-11-26 00:25:33,034 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:25:33,035 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:25:33,036 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:25:33,038 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:25:33,041 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:25:33,042 WARN L623 FunctionHandler]: Unknown extern function netdev_printk [2022-11-26 00:25:33,048 WARN L623 FunctionHandler]: Unknown extern function netdev_printk [2022-11-26 00:25:33,049 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-11-26 00:25:33,051 WARN L623 FunctionHandler]: Unknown extern function __napi_schedule [2022-11-26 00:25:33,052 WARN L623 FunctionHandler]: Unknown extern function netdev_printk [2022-11-26 00:25:33,054 WARN L623 FunctionHandler]: Unknown extern function netdev_printk [2022-11-26 00:25:33,059 WARN L623 FunctionHandler]: Unknown extern function crc32_le [2022-11-26 00:25:33,062 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-11-26 00:25:33,068 WARN L623 FunctionHandler]: Unknown extern function generic_mii_ioctl [2022-11-26 00:25:33,070 WARN L623 FunctionHandler]: Unknown extern function mii_link_ok [2022-11-26 00:25:33,071 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-11-26 00:25:33,073 WARN L623 FunctionHandler]: Unknown extern function mii_link_ok [2022-11-26 00:25:33,074 WARN L623 FunctionHandler]: Unknown extern function netif_carrier_off [2022-11-26 00:25:33,074 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-11-26 00:25:33,075 WARN L623 FunctionHandler]: Unknown extern function netif_carrier_on [2022-11-26 00:25:33,077 WARN L623 FunctionHandler]: Unknown extern function mii_ethtool_gset [2022-11-26 00:25:33,078 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-11-26 00:25:33,082 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-11-26 00:25:33,083 WARN L623 FunctionHandler]: Unknown extern function round_jiffies [2022-11-26 00:25:33,084 WARN L623 FunctionHandler]: Unknown extern function netif_device_detach [2022-11-26 00:25:33,084 WARN L623 FunctionHandler]: Unknown extern function pci_save_state [2022-11-26 00:25:33,085 WARN L623 FunctionHandler]: Unknown extern function pci_choose_state [2022-11-26 00:25:33,088 WARN L623 FunctionHandler]: Unknown extern function pci_set_power_state [2022-11-26 00:25:33,089 WARN L623 FunctionHandler]: Unknown extern function pci_set_power_state [2022-11-26 00:25:33,089 WARN L623 FunctionHandler]: Unknown extern function pci_restore_state [2022-11-26 00:25:33,089 WARN L623 FunctionHandler]: Unknown extern function netif_device_attach [2022-11-26 00:25:33,090 WARN L623 FunctionHandler]: Unknown extern function __release_region [2022-11-26 00:25:33,091 WARN L623 FunctionHandler]: Unknown extern function pci_disable_device [2022-11-26 00:25:33,095 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:25:33,097 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:25:33,099 WARN L623 FunctionHandler]: Unknown extern function __release_region [2022-11-26 00:25:33,110 WARN L623 FunctionHandler]: Unknown extern function eth_change_mtu [2022-11-26 00:25:33,111 WARN L623 FunctionHandler]: Unknown extern function eth_mac_addr [2022-11-26 00:25:33,112 WARN L623 FunctionHandler]: Unknown extern function eth_validate_addr [2022-11-26 00:25:33,115 WARN L623 FunctionHandler]: Unknown extern function ldv_initialize [2022-11-26 00:25:33,117 WARN L623 FunctionHandler]: Unknown extern function ldv_switch_to_interrupt_context [2022-11-26 00:25:33,117 WARN L623 FunctionHandler]: Unknown extern function ldv_switch_to_process_context [2022-11-26 00:25:33,127 WARN L623 FunctionHandler]: Unknown extern function ldv_pre_probe [2022-11-26 00:25:33,130 WARN L623 FunctionHandler]: Unknown extern function ldv_pre_register_netdev [2022-11-26 00:25:33,143 WARN L623 FunctionHandler]: Unknown extern function ldv_switch_to_interrupt_context [2022-11-26 00:25:33,143 WARN L623 FunctionHandler]: Unknown extern function ldv_switch_to_process_context [2022-11-26 00:25:33,149 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-11-26 00:25:33,150 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-11-26 00:25:33,150 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-11-26 00:25:33,151 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-11-26 00:25:33,151 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-11-26 00:25:33,152 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-11-26 00:25:33,152 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-11-26 00:25:33,152 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-11-26 00:25:33,153 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-11-26 00:25:33,153 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-11-26 00:25:33,153 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-11-26 00:25:33,154 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-11-26 00:25:33,154 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-11-26 00:25:33,155 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-11-26 00:25:33,155 WARN L623 FunctionHandler]: Unknown extern function alloc_etherdev_mqs [2022-11-26 00:25:33,156 WARN L623 FunctionHandler]: Unknown extern function register_netdev [2022-11-26 00:25:33,156 WARN L623 FunctionHandler]: Unknown extern function free_netdev [2022-11-26 00:25:33,157 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-11-26 00:25:33,158 WARN L623 FunctionHandler]: Unknown extern function mod_timer [2022-11-26 00:25:33,158 WARN L623 FunctionHandler]: Unknown extern function free_irq [2022-11-26 00:25:33,159 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-11-26 00:25:33,159 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-11-26 00:25:33,160 WARN L623 FunctionHandler]: Unknown extern function del_timer_sync [2022-11-26 00:25:33,160 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-11-26 00:25:33,161 WARN L623 FunctionHandler]: Unknown extern function free_irq [2022-11-26 00:25:33,161 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-11-26 00:25:33,162 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-11-26 00:25:33,162 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-11-26 00:25:33,163 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-11-26 00:25:33,163 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-11-26 00:25:33,163 WARN L623 FunctionHandler]: Unknown extern function mod_timer [2022-11-26 00:25:33,164 WARN L623 FunctionHandler]: Unknown extern function unregister_netdev [2022-11-26 00:25:33,164 WARN L623 FunctionHandler]: Unknown extern function free_netdev [2022-11-26 00:25:33,165 WARN L623 FunctionHandler]: Unknown extern function __pci_register_driver [2022-11-26 00:25:33,165 WARN L623 FunctionHandler]: Unknown extern function unregister_netdev [2022-11-26 00:25:33,166 WARN L623 FunctionHandler]: Unknown extern function free_netdev [2022-11-26 00:25:33,166 WARN L623 FunctionHandler]: Unknown extern function pci_unregister_driver [2022-11-26 00:25:33,169 WARN L623 FunctionHandler]: Unknown extern function ldv_check_alloc_flags [2022-11-26 00:25:33,170 WARN L623 FunctionHandler]: Unknown extern function ldv_after_alloc [2022-11-26 00:25:33,171 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-26 00:25:33,199 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_c5b5dcfc-29ec-470d-a6c5-8c1f4040ac18/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-amd-pcnet32.cil.i[410165,410178] [2022-11-26 00:25:33,200 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_c5b5dcfc-29ec-470d-a6c5-8c1f4040ac18/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-amd-pcnet32.cil.i[410334,410347] [2022-11-26 00:25:33,200 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_c5b5dcfc-29ec-470d-a6c5-8c1f4040ac18/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-amd-pcnet32.cil.i[410501,410514] [2022-11-26 00:25:33,201 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_c5b5dcfc-29ec-470d-a6c5-8c1f4040ac18/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-amd-pcnet32.cil.i[410669,410682] [2022-11-26 00:25:33,202 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-26 00:25:33,207 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-26 00:25:33,208 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-26 00:25:33,208 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-26 00:25:33,215 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-26 00:25:33,494 INFO L208 MainTranslator]: Completed translation [2022-11-26 00:25:33,495 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:25:33 WrapperNode [2022-11-26 00:25:33,495 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-26 00:25:33,496 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-26 00:25:33,496 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-26 00:25:33,497 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-26 00:25:33,505 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:25:33" (1/1) ... [2022-11-26 00:25:33,623 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:25:33" (1/1) ... [2022-11-26 00:25:33,961 INFO L138 Inliner]: procedures = 541, calls = 2859, calls flagged for inlining = 282, calls inlined = 248, statements flattened = 7269 [2022-11-26 00:25:33,961 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-26 00:25:33,964 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-26 00:25:33,964 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-26 00:25:33,964 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-26 00:25:33,975 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:25:33" (1/1) ... [2022-11-26 00:25:33,975 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:25:33" (1/1) ... [2022-11-26 00:25:34,012 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:25:33" (1/1) ... [2022-11-26 00:25:34,012 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:25:33" (1/1) ... [2022-11-26 00:25:34,161 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:25:33" (1/1) ... [2022-11-26 00:25:34,201 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:25:33" (1/1) ... [2022-11-26 00:25:34,248 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:25:33" (1/1) ... [2022-11-26 00:25:34,277 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:25:33" (1/1) ... [2022-11-26 00:25:34,337 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-26 00:25:34,343 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-26 00:25:34,343 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-26 00:25:34,343 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-26 00:25:34,344 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:25:33" (1/1) ... [2022-11-26 00:25:34,350 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-26 00:25:34,362 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5b5dcfc-29ec-470d-a6c5-8c1f4040ac18/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:25:34,464 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5b5dcfc-29ec-470d-a6c5-8c1f4040ac18/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-26 00:25:34,536 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5b5dcfc-29ec-470d-a6c5-8c1f4040ac18/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-26 00:25:34,618 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_write [2022-11-26 00:25:34,620 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_write [2022-11-26 00:25:34,620 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-11-26 00:25:34,620 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-11-26 00:25:34,620 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_alloc_skb [2022-11-26 00:25:34,620 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_alloc_skb [2022-11-26 00:25:34,621 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2022-11-26 00:25:34,621 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2022-11-26 00:25:34,621 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-26 00:25:34,621 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-26 00:25:34,622 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2022-11-26 00:25:34,622 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2022-11-26 00:25:34,622 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-11-26 00:25:34,622 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-11-26 00:25:34,622 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2022-11-26 00:25:34,622 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2022-11-26 00:25:34,622 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2022-11-26 00:25:34,623 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2022-11-26 00:25:34,623 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_63 [2022-11-26 00:25:34,623 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_63 [2022-11-26 00:25:34,623 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_interrupt [2022-11-26 00:25:34,623 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_interrupt [2022-11-26 00:25:34,623 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2022-11-26 00:25:34,624 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2022-11-26 00:25:34,624 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2022-11-26 00:25:34,624 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2022-11-26 00:25:34,624 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-11-26 00:25:34,624 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-11-26 00:25:34,624 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2022-11-26 00:25:34,624 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2022-11-26 00:25:34,625 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2022-11-26 00:25:34,625 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2022-11-26 00:25:34,625 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-11-26 00:25:34,629 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-11-26 00:25:34,630 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2022-11-26 00:25:34,630 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2022-11-26 00:25:34,630 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-26 00:25:34,630 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_dwio_write_bcr [2022-11-26 00:25:34,630 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_dwio_write_bcr [2022-11-26 00:25:34,630 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-11-26 00:25:34,631 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-11-26 00:25:34,631 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2022-11-26 00:25:34,631 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2022-11-26 00:25:34,631 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-11-26 00:25:34,631 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-11-26 00:25:34,631 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-11-26 00:25:34,631 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_netdev [2022-11-26 00:25:34,632 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_netdev [2022-11-26 00:25:34,632 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-26 00:25:34,632 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-11-26 00:25:34,632 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-11-26 00:25:34,632 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_purge_tx_ring [2022-11-26 00:25:34,632 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_purge_tx_ring [2022-11-26 00:25:34,632 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-26 00:25:34,633 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2022-11-26 00:25:34,633 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2022-11-26 00:25:34,633 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-26 00:25:34,633 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-26 00:25:34,633 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_wio_write_bcr [2022-11-26 00:25:34,633 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_wio_write_bcr [2022-11-26 00:25:34,634 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2022-11-26 00:25:34,634 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2022-11-26 00:25:34,634 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2022-11-26 00:25:34,634 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2022-11-26 00:25:34,634 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2022-11-26 00:25:34,634 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2022-11-26 00:25:34,634 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2022-11-26 00:25:34,635 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2022-11-26 00:25:34,635 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2022-11-26 00:25:34,635 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2022-11-26 00:25:34,635 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_netif_start [2022-11-26 00:25:34,635 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_netif_start [2022-11-26 00:25:34,650 INFO L130 BoogieDeclarations]: Found specification of procedure napi_enable [2022-11-26 00:25:34,651 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_enable [2022-11-26 00:25:34,651 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~~u16~0 [2022-11-26 00:25:34,651 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~~u16~0 [2022-11-26 00:25:34,651 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2022-11-26 00:25:34,652 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2022-11-26 00:25:34,652 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-26 00:25:34,652 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer [2022-11-26 00:25:34,652 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer [2022-11-26 00:25:34,652 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_open [2022-11-26 00:25:34,652 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_open [2022-11-26 00:25:34,653 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-26 00:25:34,653 INFO L130 BoogieDeclarations]: Found specification of procedure is_valid_ether_addr [2022-11-26 00:25:34,653 INFO L138 BoogieDeclarations]: Found implementation of procedure is_valid_ether_addr [2022-11-26 00:25:34,653 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-11-26 00:25:34,653 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-11-26 00:25:34,653 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-11-26 00:25:34,653 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-11-26 00:25:34,654 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-26 00:25:34,654 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-11-26 00:25:34,654 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-11-26 00:25:34,654 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-11-26 00:25:34,672 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_wio_reset [2022-11-26 00:25:34,672 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_wio_reset [2022-11-26 00:25:34,672 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_lock_of_pcnet32_private [2022-11-26 00:25:34,672 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_lock_of_pcnet32_private [2022-11-26 00:25:34,673 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2022-11-26 00:25:34,673 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2022-11-26 00:25:34,673 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_restart [2022-11-26 00:25:34,673 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_restart [2022-11-26 00:25:34,673 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2022-11-26 00:25:34,673 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2022-11-26 00:25:34,673 INFO L130 BoogieDeclarations]: Found specification of procedure napi_disable [2022-11-26 00:25:34,673 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_disable [2022-11-26 00:25:34,673 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-11-26 00:25:34,673 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-11-26 00:25:34,673 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2022-11-26 00:25:34,673 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2022-11-26 00:25:34,674 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2022-11-26 00:25:34,674 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2022-11-26 00:25:34,674 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_dwio_read_csr [2022-11-26 00:25:34,674 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_dwio_read_csr [2022-11-26 00:25:34,674 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~TO~VOID [2022-11-26 00:25:34,674 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~TO~VOID [2022-11-26 00:25:34,674 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2022-11-26 00:25:34,674 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2022-11-26 00:25:34,674 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_dwio_reset [2022-11-26 00:25:34,675 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_dwio_reset [2022-11-26 00:25:34,675 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_read [2022-11-26 00:25:34,675 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_read [2022-11-26 00:25:34,676 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-26 00:25:34,676 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-26 00:25:34,676 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2022-11-26 00:25:34,676 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2022-11-26 00:25:34,676 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-26 00:25:34,676 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-26 00:25:34,676 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-26 00:25:34,676 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-26 00:25:34,676 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_pm_resume [2022-11-26 00:25:34,676 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_pm_resume [2022-11-26 00:25:34,676 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-11-26 00:25:34,677 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-11-26 00:25:34,677 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_check_media [2022-11-26 00:25:34,677 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_check_media [2022-11-26 00:25:34,677 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_get_regs_len [2022-11-26 00:25:34,677 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_get_regs_len [2022-11-26 00:25:34,677 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_size_call_parameter [2022-11-26 00:25:34,677 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2022-11-26 00:25:34,677 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2022-11-26 00:25:34,677 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_poll_controller [2022-11-26 00:25:34,677 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_poll_controller [2022-11-26 00:25:34,677 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_free_ring [2022-11-26 00:25:34,678 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_free_ring [2022-11-26 00:25:34,678 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2022-11-26 00:25:34,678 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2022-11-26 00:25:34,678 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-26 00:25:34,678 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-26 00:25:34,678 INFO L130 BoogieDeclarations]: Found specification of procedure kcalloc [2022-11-26 00:25:34,678 INFO L138 BoogieDeclarations]: Found implementation of procedure kcalloc [2022-11-26 00:25:34,678 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2022-11-26 00:25:34,678 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2022-11-26 00:25:34,678 INFO L130 BoogieDeclarations]: Found specification of procedure pci_alloc_consistent [2022-11-26 00:25:34,678 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_alloc_consistent [2022-11-26 00:25:34,679 INFO L130 BoogieDeclarations]: Found specification of procedure mii_ethtool_gset [2022-11-26 00:25:34,679 INFO L138 BoogieDeclarations]: Found implementation of procedure mii_ethtool_gset [2022-11-26 00:25:34,679 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_purge_rx_ring [2022-11-26 00:25:34,679 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_purge_rx_ring [2022-11-26 00:25:34,679 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_dwio_write_csr [2022-11-26 00:25:34,679 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_dwio_write_csr [2022-11-26 00:25:34,679 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_tx_timeout [2022-11-26 00:25:34,679 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_tx_timeout [2022-11-26 00:25:34,679 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2022-11-26 00:25:34,679 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2022-11-26 00:25:34,679 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-26 00:25:34,679 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_netif_stop [2022-11-26 00:25:34,681 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_netif_stop [2022-11-26 00:25:34,681 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2022-11-26 00:25:34,682 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2022-11-26 00:25:34,682 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-26 00:25:34,682 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_lock_of_pcnet32_private [2022-11-26 00:25:34,682 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_lock_of_pcnet32_private [2022-11-26 00:25:34,682 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-26 00:25:34,682 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_wio_read_csr [2022-11-26 00:25:34,682 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_wio_read_csr [2022-11-26 00:25:34,683 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_set_multicast_list [2022-11-26 00:25:34,683 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_set_multicast_list [2022-11-26 00:25:34,683 INFO L130 BoogieDeclarations]: Found specification of procedure outw [2022-11-26 00:25:34,683 INFO L138 BoogieDeclarations]: Found implementation of procedure outw [2022-11-26 00:25:34,683 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-11-26 00:25:34,683 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-11-26 00:25:34,683 INFO L130 BoogieDeclarations]: Found specification of procedure mii_link_ok [2022-11-26 00:25:34,684 INFO L138 BoogieDeclarations]: Found implementation of procedure mii_link_ok [2022-11-26 00:25:34,684 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-11-26 00:25:34,684 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-11-26 00:25:34,684 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_probe1 [2022-11-26 00:25:34,684 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_probe1 [2022-11-26 00:25:34,684 INFO L130 BoogieDeclarations]: Found specification of procedure outl [2022-11-26 00:25:34,685 INFO L138 BoogieDeclarations]: Found implementation of procedure outl [2022-11-26 00:25:34,685 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq [2022-11-26 00:25:34,685 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq [2022-11-26 00:25:34,685 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_remove_one [2022-11-26 00:25:34,685 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_remove_one [2022-11-26 00:25:34,685 INFO L130 BoogieDeclarations]: Found specification of procedure mii_ethtool_sset [2022-11-26 00:25:34,685 INFO L138 BoogieDeclarations]: Found implementation of procedure mii_ethtool_sset [2022-11-26 00:25:34,686 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~X~~u16~0~TO~VOID [2022-11-26 00:25:34,686 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~X~~u16~0~TO~VOID [2022-11-26 00:25:34,686 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_dwio_read_bcr [2022-11-26 00:25:34,686 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_dwio_read_bcr [2022-11-26 00:25:34,686 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reserve [2022-11-26 00:25:34,686 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reserve [2022-11-26 00:25:34,686 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2022-11-26 00:25:34,687 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2022-11-26 00:25:34,687 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-11-26 00:25:34,687 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-11-26 00:25:34,687 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_wio_read_bcr [2022-11-26 00:25:34,687 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_wio_read_bcr [2022-11-26 00:25:34,687 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-11-26 00:25:34,687 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-11-26 00:25:34,688 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_init_ring [2022-11-26 00:25:34,688 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_init_ring [2022-11-26 00:25:34,688 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_close [2022-11-26 00:25:34,688 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_close [2022-11-26 00:25:34,688 INFO L130 BoogieDeclarations]: Found specification of procedure __release_region [2022-11-26 00:25:34,688 INFO L138 BoogieDeclarations]: Found implementation of procedure __release_region [2022-11-26 00:25:34,689 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-26 00:25:34,689 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-26 00:25:34,689 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-26 00:25:34,689 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_suspend [2022-11-26 00:25:34,689 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_suspend [2022-11-26 00:25:34,689 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-26 00:25:34,689 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-26 00:25:34,690 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2022-11-26 00:25:34,690 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2022-11-26 00:25:34,690 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_any [2022-11-26 00:25:34,690 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_any [2022-11-26 00:25:34,690 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_wio_write_csr [2022-11-26 00:25:34,690 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_wio_write_csr [2022-11-26 00:25:34,690 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_load_multicast [2022-11-26 00:25:34,691 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_load_multicast [2022-11-26 00:25:34,691 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_stop_queue [2022-11-26 00:25:34,691 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_stop_queue [2022-11-26 00:25:34,691 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_nway_reset [2022-11-26 00:25:34,691 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_nway_reset [2022-11-26 00:25:34,691 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-11-26 00:25:34,692 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-11-26 00:25:34,692 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_power_state [2022-11-26 00:25:34,692 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_power_state [2022-11-26 00:25:34,692 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2022-11-26 00:25:34,692 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2022-11-26 00:25:34,692 INFO L130 BoogieDeclarations]: Found specification of procedure inb [2022-11-26 00:25:34,692 INFO L138 BoogieDeclarations]: Found implementation of procedure inb [2022-11-26 00:25:34,693 INFO L130 BoogieDeclarations]: Found specification of procedure inl [2022-11-26 00:25:34,693 INFO L138 BoogieDeclarations]: Found implementation of procedure inl [2022-11-26 00:25:34,693 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-26 00:25:34,693 INFO L130 BoogieDeclarations]: Found specification of procedure __request_region [2022-11-26 00:25:34,693 INFO L138 BoogieDeclarations]: Found implementation of procedure __request_region [2022-11-26 00:25:34,693 INFO L130 BoogieDeclarations]: Found specification of procedure inw [2022-11-26 00:25:34,693 INFO L138 BoogieDeclarations]: Found implementation of procedure inw [2022-11-26 00:25:34,694 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2022-11-26 00:25:34,694 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2022-11-26 00:25:34,694 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_netdev [2022-11-26 00:25:34,694 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_netdev [2022-11-26 00:25:35,882 INFO L235 CfgBuilder]: Building ICFG [2022-11-26 00:25:35,886 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-26 00:25:36,107 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-26 00:25:46,244 INFO L276 CfgBuilder]: Performing block encoding [2022-11-26 00:25:48,433 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-26 00:25:48,433 INFO L300 CfgBuilder]: Removed 9 assume(true) statements. [2022-11-26 00:25:48,440 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:25:48 BoogieIcfgContainer [2022-11-26 00:25:48,441 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-26 00:25:48,446 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-26 00:25:48,447 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-26 00:25:48,450 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-26 00:25:48,451 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 12:25:28" (1/3) ... [2022-11-26 00:25:48,452 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18a27e24 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:25:48, skipping insertion in model container [2022-11-26 00:25:48,452 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:25:33" (2/3) ... [2022-11-26 00:25:48,453 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18a27e24 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:25:48, skipping insertion in model container [2022-11-26 00:25:48,454 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:25:48" (3/3) ... [2022-11-26 00:25:48,456 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-amd-pcnet32.cil.i [2022-11-26 00:25:48,483 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-26 00:25:48,484 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2022-11-26 00:25:48,602 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-26 00:25:48,614 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;@6d2606eb, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-26 00:25:48,614 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-11-26 00:25:48,628 INFO L276 IsEmpty]: Start isEmpty. Operand has 1804 states, 1038 states have (on average 1.2842003853564548) internal successors, (1333), 1103 states have internal predecessors, (1333), 647 states have call successors, (647), 118 states have call predecessors, (647), 117 states have return successors, (639), 620 states have call predecessors, (639), 639 states have call successors, (639) [2022-11-26 00:25:48,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2022-11-26 00:25:48,642 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:25:48,643 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:25:48,643 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 00:25:48,651 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:25:48,652 INFO L85 PathProgramCache]: Analyzing trace with hash 408499364, now seen corresponding path program 1 times [2022-11-26 00:25:48,663 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:25:48,663 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [103308421] [2022-11-26 00:25:48,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:25:48,665 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:25:49,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:25:49,905 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-11-26 00:25:49,906 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:25:49,907 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [103308421] [2022-11-26 00:25:49,908 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [103308421] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:25:49,908 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:25:49,909 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-26 00:25:49,910 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [159388882] [2022-11-26 00:25:49,911 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:25:49,916 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-26 00:25:49,921 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:25:49,964 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-26 00:25:49,964 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-26 00:25:49,970 INFO L87 Difference]: Start difference. First operand has 1804 states, 1038 states have (on average 1.2842003853564548) internal successors, (1333), 1103 states have internal predecessors, (1333), 647 states have call successors, (647), 118 states have call predecessors, (647), 117 states have return successors, (639), 620 states have call predecessors, (639), 639 states have call successors, (639) Second operand has 5 states, 5 states have (on average 3.6) internal successors, (18), 4 states have internal predecessors, (18), 2 states have call successors, (8), 3 states have call predecessors, (8), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-26 00:25:52,792 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:25:57,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:25:57,732 INFO L93 Difference]: Finished difference Result 5286 states and 7853 transitions. [2022-11-26 00:25:57,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-26 00:25:57,736 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.6) internal successors, (18), 4 states have internal predecessors, (18), 2 states have call successors, (8), 3 states have call predecessors, (8), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 37 [2022-11-26 00:25:57,736 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:25:57,800 INFO L225 Difference]: With dead ends: 5286 [2022-11-26 00:25:57,800 INFO L226 Difference]: Without dead ends: 3477 [2022-11-26 00:25:57,830 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 00:25:57,834 INFO L413 NwaCegarLoop]: 3436 mSDtfsCounter, 2465 mSDsluCounter, 9112 mSDsCounter, 0 mSdLazyCounter, 1602 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2478 SdHoareTripleChecker+Valid, 12548 SdHoareTripleChecker+Invalid, 1606 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1602 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.0s IncrementalHoareTripleChecker+Time [2022-11-26 00:25:57,836 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2478 Valid, 12548 Invalid, 1606 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3 Valid, 1602 Invalid, 1 Unknown, 0 Unchecked, 7.0s Time] [2022-11-26 00:25:57,864 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3477 states. [2022-11-26 00:25:58,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3477 to 3470. [2022-11-26 00:25:58,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3470 states, 1998 states have (on average 1.2747747747747749) internal successors, (2547), 2109 states have internal predecessors, (2547), 1236 states have call successors, (1236), 235 states have call predecessors, (1236), 233 states have return successors, (1236), 1193 states have call predecessors, (1236), 1230 states have call successors, (1236) [2022-11-26 00:25:58,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3470 states to 3470 states and 5019 transitions. [2022-11-26 00:25:58,309 INFO L78 Accepts]: Start accepts. Automaton has 3470 states and 5019 transitions. Word has length 37 [2022-11-26 00:25:58,310 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:25:58,310 INFO L495 AbstractCegarLoop]: Abstraction has 3470 states and 5019 transitions. [2022-11-26 00:25:58,310 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.6) internal successors, (18), 4 states have internal predecessors, (18), 2 states have call successors, (8), 3 states have call predecessors, (8), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-26 00:25:58,311 INFO L276 IsEmpty]: Start isEmpty. Operand 3470 states and 5019 transitions. [2022-11-26 00:25:58,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2022-11-26 00:25:58,322 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:25:58,322 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:25:58,323 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-26 00:25:58,323 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-26 00:25:58,323 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:25:58,324 INFO L85 PathProgramCache]: Analyzing trace with hash 854431682, now seen corresponding path program 1 times [2022-11-26 00:25:58,324 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:25:58,324 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2126834922] [2022-11-26 00:25:58,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:25:58,325 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:25:58,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:25:58,963 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-11-26 00:25:58,963 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:25:58,964 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2126834922] [2022-11-26 00:25:58,964 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2126834922] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:25:58,964 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:25:58,964 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-26 00:25:58,967 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2008784234] [2022-11-26 00:25:58,968 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:25:58,970 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-26 00:25:58,970 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:25:58,971 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-26 00:25:58,975 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-26 00:25:58,975 INFO L87 Difference]: Start difference. First operand 3470 states and 5019 transitions. Second operand has 5 states, 5 states have (on average 4.2) internal successors, (21), 4 states have internal predecessors, (21), 2 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-11-26 00:26:01,558 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:26:04,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:26:04,603 INFO L93 Difference]: Finished difference Result 4806 states and 6740 transitions. [2022-11-26 00:26:04,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-26 00:26:04,604 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.2) internal successors, (21), 4 states have internal predecessors, (21), 2 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 42 [2022-11-26 00:26:04,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:26:04,640 INFO L225 Difference]: With dead ends: 4806 [2022-11-26 00:26:04,640 INFO L226 Difference]: Without dead ends: 4804 [2022-11-26 00:26:04,645 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 00:26:04,646 INFO L413 NwaCegarLoop]: 2606 mSDtfsCounter, 1705 mSDsluCounter, 6848 mSDsCounter, 0 mSdLazyCounter, 1243 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1718 SdHoareTripleChecker+Valid, 9454 SdHoareTripleChecker+Invalid, 1245 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1243 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2022-11-26 00:26:04,646 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1718 Valid, 9454 Invalid, 1245 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 1243 Invalid, 1 Unknown, 0 Unchecked, 5.2s Time] [2022-11-26 00:26:04,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4804 states. [2022-11-26 00:26:04,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4804 to 4800. [2022-11-26 00:26:04,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4800 states, 2741 states have (on average 1.2546515870120394) internal successors, (3439), 2886 states have internal predecessors, (3439), 1646 states have call successors, (1646), 410 states have call predecessors, (1646), 410 states have return successors, (1650), 1590 states have call predecessors, (1650), 1640 states have call successors, (1650) [2022-11-26 00:26:05,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4800 states to 4800 states and 6735 transitions. [2022-11-26 00:26:05,009 INFO L78 Accepts]: Start accepts. Automaton has 4800 states and 6735 transitions. Word has length 42 [2022-11-26 00:26:05,009 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:26:05,010 INFO L495 AbstractCegarLoop]: Abstraction has 4800 states and 6735 transitions. [2022-11-26 00:26:05,010 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.2) internal successors, (21), 4 states have internal predecessors, (21), 2 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-11-26 00:26:05,010 INFO L276 IsEmpty]: Start isEmpty. Operand 4800 states and 6735 transitions. [2022-11-26 00:26:05,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-11-26 00:26:05,016 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:26:05,016 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:26:05,017 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-26 00:26:05,017 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-26 00:26:05,027 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:26:05,027 INFO L85 PathProgramCache]: Analyzing trace with hash -1209168092, now seen corresponding path program 1 times [2022-11-26 00:26:05,027 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:26:05,028 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1574197767] [2022-11-26 00:26:05,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:26:05,028 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:26:05,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:26:05,541 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-11-26 00:26:05,542 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:26:05,542 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1574197767] [2022-11-26 00:26:05,542 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1574197767] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:26:05,543 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:26:05,543 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-26 00:26:05,543 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [231265538] [2022-11-26 00:26:05,543 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:26:05,544 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-26 00:26:05,544 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:26:05,545 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-26 00:26:05,545 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-26 00:26:05,545 INFO L87 Difference]: Start difference. First operand 4800 states and 6735 transitions. Second operand has 5 states, 5 states have (on average 4.2) internal successors, (21), 4 states have internal predecessors, (21), 2 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-11-26 00:26:08,053 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:26:11,087 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:26:11,886 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:26:11,887 INFO L93 Difference]: Finished difference Result 4814 states and 6746 transitions. [2022-11-26 00:26:11,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-26 00:26:11,888 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.2) internal successors, (21), 4 states have internal predecessors, (21), 2 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 47 [2022-11-26 00:26:11,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:26:11,923 INFO L225 Difference]: With dead ends: 4814 [2022-11-26 00:26:11,924 INFO L226 Difference]: Without dead ends: 4812 [2022-11-26 00:26:11,928 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 00:26:11,934 INFO L413 NwaCegarLoop]: 2600 mSDtfsCounter, 1705 mSDsluCounter, 6836 mSDsCounter, 0 mSdLazyCounter, 1243 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1717 SdHoareTripleChecker+Valid, 9436 SdHoareTripleChecker+Invalid, 1245 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1243 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.0s IncrementalHoareTripleChecker+Time [2022-11-26 00:26:11,935 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1717 Valid, 9436 Invalid, 1245 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 1243 Invalid, 1 Unknown, 0 Unchecked, 6.0s Time] [2022-11-26 00:26:11,944 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4812 states. [2022-11-26 00:26:12,243 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4812 to 4808. [2022-11-26 00:26:12,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4808 states, 2747 states have (on average 1.2540953767746632) internal successors, (3445), 2892 states have internal predecessors, (3445), 1646 states have call successors, (1646), 412 states have call predecessors, (1646), 412 states have return successors, (1650), 1590 states have call predecessors, (1650), 1640 states have call successors, (1650) [2022-11-26 00:26:12,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4808 states to 4808 states and 6741 transitions. [2022-11-26 00:26:12,317 INFO L78 Accepts]: Start accepts. Automaton has 4808 states and 6741 transitions. Word has length 47 [2022-11-26 00:26:12,318 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:26:12,318 INFO L495 AbstractCegarLoop]: Abstraction has 4808 states and 6741 transitions. [2022-11-26 00:26:12,319 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.2) internal successors, (21), 4 states have internal predecessors, (21), 2 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-11-26 00:26:12,319 INFO L276 IsEmpty]: Start isEmpty. Operand 4808 states and 6741 transitions. [2022-11-26 00:26:12,321 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2022-11-26 00:26:12,321 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:26:12,322 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:26:12,322 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-26 00:26:12,322 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-26 00:26:12,323 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:26:12,323 INFO L85 PathProgramCache]: Analyzing trace with hash 1856544922, now seen corresponding path program 1 times [2022-11-26 00:26:12,323 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:26:12,323 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [69859338] [2022-11-26 00:26:12,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:26:12,324 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:26:12,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:26:12,804 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-11-26 00:26:12,805 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:26:12,805 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [69859338] [2022-11-26 00:26:12,805 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [69859338] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:26:12,806 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:26:12,806 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-26 00:26:12,806 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1684223213] [2022-11-26 00:26:12,806 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:26:12,807 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-26 00:26:12,807 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:26:12,808 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-26 00:26:12,808 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-26 00:26:12,808 INFO L87 Difference]: Start difference. First operand 4808 states and 6741 transitions. Second operand has 5 states, 5 states have (on average 5.0) internal successors, (25), 4 states have internal predecessors, (25), 2 states have call successors, (12), 3 states have call predecessors, (12), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-11-26 00:26:15,398 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:26:18,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:26:18,388 INFO L93 Difference]: Finished difference Result 4822 states and 6752 transitions. [2022-11-26 00:26:18,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-26 00:26:18,389 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.0) internal successors, (25), 4 states have internal predecessors, (25), 2 states have call successors, (12), 3 states have call predecessors, (12), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 59 [2022-11-26 00:26:18,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:26:18,426 INFO L225 Difference]: With dead ends: 4822 [2022-11-26 00:26:18,426 INFO L226 Difference]: Without dead ends: 4820 [2022-11-26 00:26:18,431 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 00:26:18,432 INFO L413 NwaCegarLoop]: 2600 mSDtfsCounter, 1700 mSDsluCounter, 6836 mSDsCounter, 0 mSdLazyCounter, 1243 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1711 SdHoareTripleChecker+Valid, 9436 SdHoareTripleChecker+Invalid, 1245 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1243 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2022-11-26 00:26:18,433 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1711 Valid, 9436 Invalid, 1245 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 1243 Invalid, 1 Unknown, 0 Unchecked, 5.1s Time] [2022-11-26 00:26:18,440 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4820 states. [2022-11-26 00:26:18,732 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4820 to 4816. [2022-11-26 00:26:18,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4816 states, 2753 states have (on average 1.2535415909916454) internal successors, (3451), 2898 states have internal predecessors, (3451), 1646 states have call successors, (1646), 414 states have call predecessors, (1646), 414 states have return successors, (1650), 1590 states have call predecessors, (1650), 1640 states have call successors, (1650) [2022-11-26 00:26:18,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4816 states to 4816 states and 6747 transitions. [2022-11-26 00:26:18,781 INFO L78 Accepts]: Start accepts. Automaton has 4816 states and 6747 transitions. Word has length 59 [2022-11-26 00:26:18,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:26:18,782 INFO L495 AbstractCegarLoop]: Abstraction has 4816 states and 6747 transitions. [2022-11-26 00:26:18,782 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.0) internal successors, (25), 4 states have internal predecessors, (25), 2 states have call successors, (12), 3 states have call predecessors, (12), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-11-26 00:26:18,783 INFO L276 IsEmpty]: Start isEmpty. Operand 4816 states and 6747 transitions. [2022-11-26 00:26:18,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-11-26 00:26:18,785 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:26:18,785 INFO L195 NwaCegarLoop]: trace histogram [5, 4, 4, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:26:18,785 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-26 00:26:18,785 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 00:26:18,786 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:26:18,786 INFO L85 PathProgramCache]: Analyzing trace with hash -1331135284, now seen corresponding path program 1 times [2022-11-26 00:26:18,786 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:26:18,786 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1739131697] [2022-11-26 00:26:18,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:26:18,787 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:26:18,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:26:19,262 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2022-11-26 00:26:19,262 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:26:19,263 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1739131697] [2022-11-26 00:26:19,263 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1739131697] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:26:19,263 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:26:19,263 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-26 00:26:19,263 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [858674399] [2022-11-26 00:26:19,264 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:26:19,264 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-26 00:26:19,264 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:26:19,265 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-26 00:26:19,265 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-26 00:26:19,265 INFO L87 Difference]: Start difference. First operand 4816 states and 6747 transitions. Second operand has 5 states, 5 states have (on average 5.0) internal successors, (25), 4 states have internal predecessors, (25), 2 states have call successors, (13), 3 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-26 00:26:21,768 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:26:24,737 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:26:24,737 INFO L93 Difference]: Finished difference Result 4830 states and 6758 transitions. [2022-11-26 00:26:24,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-26 00:26:24,738 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.0) internal successors, (25), 4 states have internal predecessors, (25), 2 states have call successors, (13), 3 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 64 [2022-11-26 00:26:24,739 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:26:24,774 INFO L225 Difference]: With dead ends: 4830 [2022-11-26 00:26:24,774 INFO L226 Difference]: Without dead ends: 4828 [2022-11-26 00:26:24,779 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 00:26:24,780 INFO L413 NwaCegarLoop]: 2600 mSDtfsCounter, 1700 mSDsluCounter, 6836 mSDsCounter, 0 mSdLazyCounter, 1243 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1710 SdHoareTripleChecker+Valid, 9436 SdHoareTripleChecker+Invalid, 1245 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1243 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2022-11-26 00:26:24,781 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1710 Valid, 9436 Invalid, 1245 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1243 Invalid, 1 Unknown, 0 Unchecked, 5.1s Time] [2022-11-26 00:26:24,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4828 states. [2022-11-26 00:26:25,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4828 to 4824. [2022-11-26 00:26:25,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4824 states, 2759 states have (on average 1.2529902138455962) internal successors, (3457), 2904 states have internal predecessors, (3457), 1646 states have call successors, (1646), 416 states have call predecessors, (1646), 416 states have return successors, (1650), 1590 states have call predecessors, (1650), 1640 states have call successors, (1650) [2022-11-26 00:26:25,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4824 states to 4824 states and 6753 transitions. [2022-11-26 00:26:25,109 INFO L78 Accepts]: Start accepts. Automaton has 4824 states and 6753 transitions. Word has length 64 [2022-11-26 00:26:25,109 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:26:25,109 INFO L495 AbstractCegarLoop]: Abstraction has 4824 states and 6753 transitions. [2022-11-26 00:26:25,110 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.0) internal successors, (25), 4 states have internal predecessors, (25), 2 states have call successors, (13), 3 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-26 00:26:25,110 INFO L276 IsEmpty]: Start isEmpty. Operand 4824 states and 6753 transitions. [2022-11-26 00:26:25,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2022-11-26 00:26:25,113 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:26:25,113 INFO L195 NwaCegarLoop]: trace histogram [6, 5, 5, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:26:25,113 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-26 00:26:25,114 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 00:26:25,115 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:26:25,115 INFO L85 PathProgramCache]: Analyzing trace with hash -1784576102, now seen corresponding path program 1 times [2022-11-26 00:26:25,115 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:26:25,115 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [730360963] [2022-11-26 00:26:25,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:26:25,116 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:26:25,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:26:25,581 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-11-26 00:26:25,582 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:26:25,582 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [730360963] [2022-11-26 00:26:25,582 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [730360963] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:26:25,582 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:26:25,582 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-26 00:26:25,583 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1100870091] [2022-11-26 00:26:25,583 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:26:25,585 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-26 00:26:25,585 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:26:25,585 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-26 00:26:25,586 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-26 00:26:25,586 INFO L87 Difference]: Start difference. First operand 4824 states and 6753 transitions. Second operand has 5 states, 5 states have (on average 5.0) internal successors, (25), 4 states have internal predecessors, (25), 2 states have call successors, (14), 3 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-11-26 00:26:28,125 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:26:31,657 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:26:31,657 INFO L93 Difference]: Finished difference Result 4838 states and 6764 transitions. [2022-11-26 00:26:31,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-26 00:26:31,658 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.0) internal successors, (25), 4 states have internal predecessors, (25), 2 states have call successors, (14), 3 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 69 [2022-11-26 00:26:31,659 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:26:31,692 INFO L225 Difference]: With dead ends: 4838 [2022-11-26 00:26:31,692 INFO L226 Difference]: Without dead ends: 4836 [2022-11-26 00:26:31,697 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 00:26:31,698 INFO L413 NwaCegarLoop]: 2600 mSDtfsCounter, 1700 mSDsluCounter, 6836 mSDsCounter, 0 mSdLazyCounter, 1243 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1709 SdHoareTripleChecker+Valid, 9436 SdHoareTripleChecker+Invalid, 1245 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1243 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2022-11-26 00:26:31,699 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1709 Valid, 9436 Invalid, 1245 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1243 Invalid, 1 Unknown, 0 Unchecked, 5.7s Time] [2022-11-26 00:26:31,706 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4836 states. [2022-11-26 00:26:31,996 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4836 to 4832. [2022-11-26 00:26:32,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4832 states, 2765 states have (on average 1.2524412296564196) internal successors, (3463), 2910 states have internal predecessors, (3463), 1646 states have call successors, (1646), 418 states have call predecessors, (1646), 418 states have return successors, (1650), 1590 states have call predecessors, (1650), 1640 states have call successors, (1650) [2022-11-26 00:26:32,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4832 states to 4832 states and 6759 transitions. [2022-11-26 00:26:32,035 INFO L78 Accepts]: Start accepts. Automaton has 4832 states and 6759 transitions. Word has length 69 [2022-11-26 00:26:32,036 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:26:32,036 INFO L495 AbstractCegarLoop]: Abstraction has 4832 states and 6759 transitions. [2022-11-26 00:26:32,036 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.0) internal successors, (25), 4 states have internal predecessors, (25), 2 states have call successors, (14), 3 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-11-26 00:26:32,037 INFO L276 IsEmpty]: Start isEmpty. Operand 4832 states and 6759 transitions. [2022-11-26 00:26:32,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-11-26 00:26:32,038 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:26:32,038 INFO L195 NwaCegarLoop]: trace histogram [7, 6, 6, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:26:32,039 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-26 00:26:32,039 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 00:26:32,039 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:26:32,040 INFO L85 PathProgramCache]: Analyzing trace with hash -251005916, now seen corresponding path program 1 times [2022-11-26 00:26:32,040 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:26:32,040 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1823934713] [2022-11-26 00:26:32,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:26:32,040 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:26:32,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:26:32,445 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2022-11-26 00:26:32,446 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:26:32,446 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1823934713] [2022-11-26 00:26:32,446 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1823934713] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:26:32,447 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:26:32,447 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-26 00:26:32,447 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [830517022] [2022-11-26 00:26:32,447 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:26:32,448 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-26 00:26:32,448 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:26:32,449 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-26 00:26:32,449 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-26 00:26:32,450 INFO L87 Difference]: Start difference. First operand 4832 states and 6759 transitions. Second operand has 5 states, 5 states have (on average 4.2) internal successors, (21), 4 states have internal predecessors, (21), 2 states have call successors, (14), 3 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-11-26 00:26:34,954 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:26:37,656 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:26:37,657 INFO L93 Difference]: Finished difference Result 4846 states and 6770 transitions. [2022-11-26 00:26:37,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-26 00:26:37,658 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.2) internal successors, (21), 4 states have internal predecessors, (21), 2 states have call successors, (14), 3 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 67 [2022-11-26 00:26:37,659 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:26:37,695 INFO L225 Difference]: With dead ends: 4846 [2022-11-26 00:26:37,695 INFO L226 Difference]: Without dead ends: 4844 [2022-11-26 00:26:37,700 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 00:26:37,701 INFO L413 NwaCegarLoop]: 2600 mSDtfsCounter, 1705 mSDsluCounter, 6836 mSDsCounter, 0 mSdLazyCounter, 1243 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1713 SdHoareTripleChecker+Valid, 9436 SdHoareTripleChecker+Invalid, 1245 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1243 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2022-11-26 00:26:37,702 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1713 Valid, 9436 Invalid, 1245 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1243 Invalid, 1 Unknown, 0 Unchecked, 4.9s Time] [2022-11-26 00:26:37,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4844 states. [2022-11-26 00:26:38,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4844 to 4840. [2022-11-26 00:26:38,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4840 states, 2771 states have (on average 1.2518946228798267) internal successors, (3469), 2916 states have internal predecessors, (3469), 1646 states have call successors, (1646), 420 states have call predecessors, (1646), 420 states have return successors, (1650), 1590 states have call predecessors, (1650), 1640 states have call successors, (1650) [2022-11-26 00:26:38,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4840 states to 4840 states and 6765 transitions. [2022-11-26 00:26:38,144 INFO L78 Accepts]: Start accepts. Automaton has 4840 states and 6765 transitions. Word has length 67 [2022-11-26 00:26:38,145 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:26:38,145 INFO L495 AbstractCegarLoop]: Abstraction has 4840 states and 6765 transitions. [2022-11-26 00:26:38,145 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.2) internal successors, (21), 4 states have internal predecessors, (21), 2 states have call successors, (14), 3 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-11-26 00:26:38,145 INFO L276 IsEmpty]: Start isEmpty. Operand 4840 states and 6765 transitions. [2022-11-26 00:26:38,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2022-11-26 00:26:38,148 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:26:38,148 INFO L195 NwaCegarLoop]: trace histogram [8, 7, 7, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:26:38,149 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-26 00:26:38,149 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 00:26:38,149 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:26:38,150 INFO L85 PathProgramCache]: Analyzing trace with hash -430481766, now seen corresponding path program 1 times [2022-11-26 00:26:38,150 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:26:38,150 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [802807471] [2022-11-26 00:26:38,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:26:38,151 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:26:38,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:26:38,572 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2022-11-26 00:26:38,572 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:26:38,573 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [802807471] [2022-11-26 00:26:38,573 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [802807471] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:26:38,573 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:26:38,573 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-26 00:26:38,574 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [541401381] [2022-11-26 00:26:38,574 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:26:38,575 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-26 00:26:38,575 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:26:38,576 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-26 00:26:38,576 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-26 00:26:38,576 INFO L87 Difference]: Start difference. First operand 4840 states and 6765 transitions. Second operand has 5 states, 5 states have (on average 5.0) internal successors, (25), 4 states have internal predecessors, (25), 2 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-11-26 00:26:41,111 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:26:43,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:26:43,880 INFO L93 Difference]: Finished difference Result 6249 states and 8622 transitions. [2022-11-26 00:26:43,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-26 00:26:43,881 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.0) internal successors, (25), 4 states have internal predecessors, (25), 2 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 79 [2022-11-26 00:26:43,881 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:26:43,910 INFO L225 Difference]: With dead ends: 6249 [2022-11-26 00:26:43,911 INFO L226 Difference]: Without dead ends: 6247 [2022-11-26 00:26:43,915 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 00:26:43,916 INFO L413 NwaCegarLoop]: 2672 mSDtfsCounter, 1388 mSDsluCounter, 7456 mSDsCounter, 0 mSdLazyCounter, 1328 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1393 SdHoareTripleChecker+Valid, 10128 SdHoareTripleChecker+Invalid, 1332 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1328 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2022-11-26 00:26:43,916 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1393 Valid, 10128 Invalid, 1332 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1328 Invalid, 1 Unknown, 0 Unchecked, 4.9s Time] [2022-11-26 00:26:43,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6247 states. [2022-11-26 00:26:44,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6247 to 6238. [2022-11-26 00:26:44,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6238 states, 3530 states have (on average 1.2492917847025495) internal successors, (4410), 3752 states have internal predecessors, (4410), 2090 states have call successors, (2090), 626 states have call predecessors, (2090), 615 states have return successors, (2113), 1967 states have call predecessors, (2113), 2081 states have call successors, (2113) [2022-11-26 00:26:44,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6238 states to 6238 states and 8613 transitions. [2022-11-26 00:26:44,356 INFO L78 Accepts]: Start accepts. Automaton has 6238 states and 8613 transitions. Word has length 79 [2022-11-26 00:26:44,358 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:26:44,358 INFO L495 AbstractCegarLoop]: Abstraction has 6238 states and 8613 transitions. [2022-11-26 00:26:44,358 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.0) internal successors, (25), 4 states have internal predecessors, (25), 2 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-11-26 00:26:44,358 INFO L276 IsEmpty]: Start isEmpty. Operand 6238 states and 8613 transitions. [2022-11-26 00:26:44,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-11-26 00:26:44,367 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:26:44,367 INFO L195 NwaCegarLoop]: trace histogram [9, 8, 8, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:26:44,367 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-26 00:26:44,368 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 00:26:44,368 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:26:44,369 INFO L85 PathProgramCache]: Analyzing trace with hash -274071900, now seen corresponding path program 1 times [2022-11-26 00:26:44,369 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:26:44,369 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [324481073] [2022-11-26 00:26:44,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:26:44,369 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:26:44,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:26:44,736 INFO L134 CoverageAnalysis]: Checked inductivity of 139 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 123 trivial. 0 not checked. [2022-11-26 00:26:44,737 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:26:44,737 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [324481073] [2022-11-26 00:26:44,737 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [324481073] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:26:44,737 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:26:44,738 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-26 00:26:44,738 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1955708527] [2022-11-26 00:26:44,738 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:26:44,739 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-26 00:26:44,739 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:26:44,740 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-26 00:26:44,740 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-26 00:26:44,741 INFO L87 Difference]: Start difference. First operand 6238 states and 8613 transitions. Second operand has 5 states, 5 states have (on average 4.2) internal successors, (21), 4 states have internal predecessors, (21), 2 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-11-26 00:26:47,383 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:26:49,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:26:49,998 INFO L93 Difference]: Finished difference Result 6256 states and 8628 transitions. [2022-11-26 00:26:49,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-26 00:26:49,999 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.2) internal successors, (21), 4 states have internal predecessors, (21), 2 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 77 [2022-11-26 00:26:49,999 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:26:50,031 INFO L225 Difference]: With dead ends: 6256 [2022-11-26 00:26:50,032 INFO L226 Difference]: Without dead ends: 6254 [2022-11-26 00:26:50,038 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 00:26:50,039 INFO L413 NwaCegarLoop]: 2588 mSDtfsCounter, 1705 mSDsluCounter, 6812 mSDsCounter, 0 mSdLazyCounter, 1243 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1711 SdHoareTripleChecker+Valid, 9400 SdHoareTripleChecker+Invalid, 1245 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1243 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.8s IncrementalHoareTripleChecker+Time [2022-11-26 00:26:50,039 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1711 Valid, 9400 Invalid, 1245 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1243 Invalid, 1 Unknown, 0 Unchecked, 4.8s Time] [2022-11-26 00:26:50,048 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6254 states. [2022-11-26 00:26:50,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6254 to 6250. [2022-11-26 00:26:50,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6250 states, 3539 states have (on average 1.248657812941509) internal successors, (4419), 3761 states have internal predecessors, (4419), 2090 states have call successors, (2090), 629 states have call predecessors, (2090), 618 states have return successors, (2113), 1967 states have call predecessors, (2113), 2081 states have call successors, (2113) [2022-11-26 00:26:50,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6250 states to 6250 states and 8622 transitions. [2022-11-26 00:26:50,573 INFO L78 Accepts]: Start accepts. Automaton has 6250 states and 8622 transitions. Word has length 77 [2022-11-26 00:26:50,574 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:26:50,574 INFO L495 AbstractCegarLoop]: Abstraction has 6250 states and 8622 transitions. [2022-11-26 00:26:50,574 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.2) internal successors, (21), 4 states have internal predecessors, (21), 2 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-11-26 00:26:50,574 INFO L276 IsEmpty]: Start isEmpty. Operand 6250 states and 8622 transitions. [2022-11-26 00:26:50,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2022-11-26 00:26:50,577 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:26:50,577 INFO L195 NwaCegarLoop]: trace histogram [10, 9, 9, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:26:50,577 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-26 00:26:50,577 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 00:26:50,578 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:26:50,578 INFO L85 PathProgramCache]: Analyzing trace with hash 561236930, now seen corresponding path program 1 times [2022-11-26 00:26:50,578 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:26:50,578 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [371027359] [2022-11-26 00:26:50,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:26:50,579 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:26:50,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:26:50,939 INFO L134 CoverageAnalysis]: Checked inductivity of 173 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 155 trivial. 0 not checked. [2022-11-26 00:26:50,939 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:26:50,939 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [371027359] [2022-11-26 00:26:50,940 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [371027359] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:26:50,940 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:26:50,940 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-26 00:26:50,940 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [495592313] [2022-11-26 00:26:50,940 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:26:50,941 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-26 00:26:50,941 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:26:50,942 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-26 00:26:50,942 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-26 00:26:50,942 INFO L87 Difference]: Start difference. First operand 6250 states and 8622 transitions. Second operand has 5 states, 5 states have (on average 4.2) internal successors, (21), 4 states have internal predecessors, (21), 2 states have call successors, (17), 3 states have call predecessors, (17), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-11-26 00:26:53,531 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:26:56,442 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:26:56,443 INFO L93 Difference]: Finished difference Result 6268 states and 8637 transitions. [2022-11-26 00:26:56,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-26 00:26:56,444 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.2) internal successors, (21), 4 states have internal predecessors, (21), 2 states have call successors, (17), 3 states have call predecessors, (17), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 82 [2022-11-26 00:26:56,444 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:26:56,479 INFO L225 Difference]: With dead ends: 6268 [2022-11-26 00:26:56,479 INFO L226 Difference]: Without dead ends: 6266 [2022-11-26 00:26:56,483 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 00:26:56,484 INFO L413 NwaCegarLoop]: 2588 mSDtfsCounter, 1705 mSDsluCounter, 6812 mSDsCounter, 0 mSdLazyCounter, 1243 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1710 SdHoareTripleChecker+Valid, 9400 SdHoareTripleChecker+Invalid, 1245 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1243 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2022-11-26 00:26:56,485 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1710 Valid, 9400 Invalid, 1245 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1243 Invalid, 1 Unknown, 0 Unchecked, 5.0s Time] [2022-11-26 00:26:56,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6266 states. [2022-11-26 00:26:56,954 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6266 to 6262. [2022-11-26 00:26:56,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6262 states, 3548 states have (on average 1.2480270574971815) internal successors, (4428), 3770 states have internal predecessors, (4428), 2090 states have call successors, (2090), 632 states have call predecessors, (2090), 621 states have return successors, (2113), 1967 states have call predecessors, (2113), 2081 states have call successors, (2113) [2022-11-26 00:26:57,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6262 states to 6262 states and 8631 transitions. [2022-11-26 00:26:57,008 INFO L78 Accepts]: Start accepts. Automaton has 6262 states and 8631 transitions. Word has length 82 [2022-11-26 00:26:57,008 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:26:57,009 INFO L495 AbstractCegarLoop]: Abstraction has 6262 states and 8631 transitions. [2022-11-26 00:26:57,009 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.2) internal successors, (21), 4 states have internal predecessors, (21), 2 states have call successors, (17), 3 states have call predecessors, (17), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-11-26 00:26:57,009 INFO L276 IsEmpty]: Start isEmpty. Operand 6262 states and 8631 transitions. [2022-11-26 00:26:57,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2022-11-26 00:26:57,013 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:26:57,014 INFO L195 NwaCegarLoop]: trace histogram [11, 10, 10, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:26:57,014 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-26 00:26:57,014 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 00:26:57,015 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:26:57,015 INFO L85 PathProgramCache]: Analyzing trace with hash -1441752796, now seen corresponding path program 1 times [2022-11-26 00:26:57,015 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:26:57,015 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [89855574] [2022-11-26 00:26:57,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:26:57,016 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:26:57,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:26:57,383 INFO L134 CoverageAnalysis]: Checked inductivity of 211 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 191 trivial. 0 not checked. [2022-11-26 00:26:57,383 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:26:57,383 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [89855574] [2022-11-26 00:26:57,384 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [89855574] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:26:57,384 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:26:57,384 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-26 00:26:57,384 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1231597477] [2022-11-26 00:26:57,384 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:26:57,385 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-26 00:26:57,385 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:26:57,386 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-26 00:26:57,386 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-26 00:26:57,386 INFO L87 Difference]: Start difference. First operand 6262 states and 8631 transitions. Second operand has 5 states, 5 states have (on average 4.2) internal successors, (21), 4 states have internal predecessors, (21), 2 states have call successors, (18), 3 states have call predecessors, (18), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-11-26 00:27:00,034 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:27:03,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:27:03,275 INFO L93 Difference]: Finished difference Result 6280 states and 8646 transitions. [2022-11-26 00:27:03,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-26 00:27:03,276 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.2) internal successors, (21), 4 states have internal predecessors, (21), 2 states have call successors, (18), 3 states have call predecessors, (18), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 87 [2022-11-26 00:27:03,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:27:03,310 INFO L225 Difference]: With dead ends: 6280 [2022-11-26 00:27:03,310 INFO L226 Difference]: Without dead ends: 6278 [2022-11-26 00:27:03,316 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 00:27:03,317 INFO L413 NwaCegarLoop]: 2588 mSDtfsCounter, 1705 mSDsluCounter, 6812 mSDsCounter, 0 mSdLazyCounter, 1243 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1709 SdHoareTripleChecker+Valid, 9400 SdHoareTripleChecker+Invalid, 1245 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1243 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2022-11-26 00:27:03,317 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1709 Valid, 9400 Invalid, 1245 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1243 Invalid, 1 Unknown, 0 Unchecked, 5.4s Time] [2022-11-26 00:27:03,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6278 states. [2022-11-26 00:27:03,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6278 to 6274. [2022-11-26 00:27:03,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6274 states, 3557 states have (on average 1.2473994939555806) internal successors, (4437), 3779 states have internal predecessors, (4437), 2090 states have call successors, (2090), 635 states have call predecessors, (2090), 624 states have return successors, (2113), 1967 states have call predecessors, (2113), 2081 states have call successors, (2113) [2022-11-26 00:27:03,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6274 states to 6274 states and 8640 transitions. [2022-11-26 00:27:03,857 INFO L78 Accepts]: Start accepts. Automaton has 6274 states and 8640 transitions. Word has length 87 [2022-11-26 00:27:03,857 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:27:03,857 INFO L495 AbstractCegarLoop]: Abstraction has 6274 states and 8640 transitions. [2022-11-26 00:27:03,857 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.2) internal successors, (21), 4 states have internal predecessors, (21), 2 states have call successors, (18), 3 states have call predecessors, (18), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-11-26 00:27:03,858 INFO L276 IsEmpty]: Start isEmpty. Operand 6274 states and 8640 transitions. [2022-11-26 00:27:03,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2022-11-26 00:27:03,860 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:27:03,861 INFO L195 NwaCegarLoop]: trace histogram [12, 11, 11, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:27:03,861 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-26 00:27:03,861 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 00:27:03,861 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:27:03,862 INFO L85 PathProgramCache]: Analyzing trace with hash -1681657662, now seen corresponding path program 1 times [2022-11-26 00:27:03,862 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:27:03,862 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [589089264] [2022-11-26 00:27:03,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:27:03,862 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:27:03,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:27:04,218 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 231 trivial. 0 not checked. [2022-11-26 00:27:04,218 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:27:04,218 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [589089264] [2022-11-26 00:27:04,218 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [589089264] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:27:04,219 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:27:04,219 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-26 00:27:04,219 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1949438690] [2022-11-26 00:27:04,219 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:27:04,220 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-26 00:27:04,220 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:27:04,220 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-26 00:27:04,221 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-26 00:27:04,221 INFO L87 Difference]: Start difference. First operand 6274 states and 8640 transitions. Second operand has 5 states, 5 states have (on average 4.2) internal successors, (21), 4 states have internal predecessors, (21), 2 states have call successors, (19), 3 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-11-26 00:27:06,818 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:27:09,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:27:09,478 INFO L93 Difference]: Finished difference Result 6292 states and 8655 transitions. [2022-11-26 00:27:09,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-26 00:27:09,483 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.2) internal successors, (21), 4 states have internal predecessors, (21), 2 states have call successors, (19), 3 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 92 [2022-11-26 00:27:09,483 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:27:09,510 INFO L225 Difference]: With dead ends: 6292 [2022-11-26 00:27:09,511 INFO L226 Difference]: Without dead ends: 6288 [2022-11-26 00:27:09,514 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 00:27:09,515 INFO L413 NwaCegarLoop]: 2588 mSDtfsCounter, 1705 mSDsluCounter, 6812 mSDsCounter, 0 mSdLazyCounter, 1243 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1708 SdHoareTripleChecker+Valid, 9400 SdHoareTripleChecker+Invalid, 1245 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1243 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.8s IncrementalHoareTripleChecker+Time [2022-11-26 00:27:09,516 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1708 Valid, 9400 Invalid, 1245 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1243 Invalid, 1 Unknown, 0 Unchecked, 4.8s Time] [2022-11-26 00:27:09,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6288 states. [2022-11-26 00:27:09,977 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6288 to 6284. [2022-11-26 00:27:09,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6284 states, 3565 states have (on average 1.2465638148667602) internal successors, (4444), 3786 states have internal predecessors, (4444), 2090 states have call successors, (2090), 638 states have call predecessors, (2090), 626 states have return successors, (2113), 1967 states have call predecessors, (2113), 2081 states have call successors, (2113) [2022-11-26 00:27:10,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6284 states to 6284 states and 8647 transitions. [2022-11-26 00:27:10,031 INFO L78 Accepts]: Start accepts. Automaton has 6284 states and 8647 transitions. Word has length 92 [2022-11-26 00:27:10,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:27:10,035 INFO L495 AbstractCegarLoop]: Abstraction has 6284 states and 8647 transitions. [2022-11-26 00:27:10,035 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.2) internal successors, (21), 4 states have internal predecessors, (21), 2 states have call successors, (19), 3 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-11-26 00:27:10,035 INFO L276 IsEmpty]: Start isEmpty. Operand 6284 states and 8647 transitions. [2022-11-26 00:27:10,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-11-26 00:27:10,038 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:27:10,039 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:27:10,039 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-26 00:27:10,039 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 00:27:10,040 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:27:10,040 INFO L85 PathProgramCache]: Analyzing trace with hash 1669740439, now seen corresponding path program 1 times [2022-11-26 00:27:10,040 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:27:10,040 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [593223833] [2022-11-26 00:27:10,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:27:10,041 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:27:10,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:27:10,741 INFO L134 CoverageAnalysis]: Checked inductivity of 147 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 147 trivial. 0 not checked. [2022-11-26 00:27:10,741 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:27:10,742 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [593223833] [2022-11-26 00:27:10,742 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [593223833] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:27:10,742 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:27:10,742 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-26 00:27:10,742 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1838142866] [2022-11-26 00:27:10,743 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:27:10,744 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-26 00:27:10,744 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:27:10,745 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-26 00:27:10,745 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-26 00:27:10,746 INFO L87 Difference]: Start difference. First operand 6284 states and 8647 transitions. Second operand has 5 states, 5 states have (on average 7.4) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (18), 3 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-11-26 00:27:13,354 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:27:16,517 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:27:16,518 INFO L93 Difference]: Finished difference Result 6303 states and 8662 transitions. [2022-11-26 00:27:16,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-26 00:27:16,519 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.4) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (18), 3 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 109 [2022-11-26 00:27:16,519 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:27:16,551 INFO L225 Difference]: With dead ends: 6303 [2022-11-26 00:27:16,551 INFO L226 Difference]: Without dead ends: 6301 [2022-11-26 00:27:16,557 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 00:27:16,558 INFO L413 NwaCegarLoop]: 2671 mSDtfsCounter, 1386 mSDsluCounter, 7472 mSDsCounter, 0 mSdLazyCounter, 1320 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1388 SdHoareTripleChecker+Valid, 10143 SdHoareTripleChecker+Invalid, 1323 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1320 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2022-11-26 00:27:16,558 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1388 Valid, 10143 Invalid, 1323 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1320 Invalid, 1 Unknown, 0 Unchecked, 5.3s Time] [2022-11-26 00:27:16,567 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6301 states. [2022-11-26 00:27:17,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6301 to 6292. [2022-11-26 00:27:17,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6292 states, 3571 states have (on average 1.2455894707364883) internal successors, (4448), 3792 states have internal predecessors, (4448), 2090 states have call successors, (2090), 640 states have call predecessors, (2090), 628 states have return successors, (2113), 1967 states have call predecessors, (2113), 2081 states have call successors, (2113) [2022-11-26 00:27:17,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6292 states to 6292 states and 8651 transitions. [2022-11-26 00:27:17,092 INFO L78 Accepts]: Start accepts. Automaton has 6292 states and 8651 transitions. Word has length 109 [2022-11-26 00:27:17,093 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:27:17,093 INFO L495 AbstractCegarLoop]: Abstraction has 6292 states and 8651 transitions. [2022-11-26 00:27:17,093 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.4) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (18), 3 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-11-26 00:27:17,094 INFO L276 IsEmpty]: Start isEmpty. Operand 6292 states and 8651 transitions. [2022-11-26 00:27:17,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-11-26 00:27:17,097 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:27:17,097 INFO L195 NwaCegarLoop]: trace histogram [13, 12, 12, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:27:17,098 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-26 00:27:17,098 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 00:27:17,098 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:27:17,099 INFO L85 PathProgramCache]: Analyzing trace with hash 1162462116, now seen corresponding path program 1 times [2022-11-26 00:27:17,099 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:27:17,099 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1868802334] [2022-11-26 00:27:17,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:27:17,099 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:27:17,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:27:17,499 INFO L134 CoverageAnalysis]: Checked inductivity of 299 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 275 trivial. 0 not checked. [2022-11-26 00:27:17,499 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:27:17,499 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1868802334] [2022-11-26 00:27:17,499 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1868802334] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:27:17,499 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:27:17,500 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-26 00:27:17,500 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1521999030] [2022-11-26 00:27:17,500 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:27:17,500 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-26 00:27:17,501 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:27:17,501 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-26 00:27:17,501 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-26 00:27:17,502 INFO L87 Difference]: Start difference. First operand 6292 states and 8651 transitions. Second operand has 5 states, 5 states have (on average 4.2) internal successors, (21), 4 states have internal predecessors, (21), 2 states have call successors, (20), 3 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-11-26 00:27:20,094 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:27:23,092 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.52s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:27:24,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:27:24,041 INFO L93 Difference]: Finished difference Result 6306 states and 8662 transitions. [2022-11-26 00:27:24,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-26 00:27:24,042 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.2) internal successors, (21), 4 states have internal predecessors, (21), 2 states have call successors, (20), 3 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 97 [2022-11-26 00:27:24,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:27:24,076 INFO L225 Difference]: With dead ends: 6306 [2022-11-26 00:27:24,076 INFO L226 Difference]: Without dead ends: 6151 [2022-11-26 00:27:24,081 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 00:27:24,082 INFO L413 NwaCegarLoop]: 2591 mSDtfsCounter, 1705 mSDsluCounter, 6818 mSDsCounter, 0 mSdLazyCounter, 1240 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1707 SdHoareTripleChecker+Valid, 9409 SdHoareTripleChecker+Invalid, 1242 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1240 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.9s IncrementalHoareTripleChecker+Time [2022-11-26 00:27:24,083 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1707 Valid, 9409 Invalid, 1242 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1240 Invalid, 1 Unknown, 0 Unchecked, 5.9s Time] [2022-11-26 00:27:24,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6151 states. [2022-11-26 00:27:24,624 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6151 to 6147. [2022-11-26 00:27:24,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6147 states, 3487 states have (on average 1.2506452537998278) internal successors, (4361), 3706 states have internal predecessors, (4361), 2057 states have call successors, (2057), 611 states have call predecessors, (2057), 600 states have return successors, (2083), 1937 states have call predecessors, (2083), 2051 states have call successors, (2083) [2022-11-26 00:27:24,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6147 states to 6147 states and 8501 transitions. [2022-11-26 00:27:24,673 INFO L78 Accepts]: Start accepts. Automaton has 6147 states and 8501 transitions. Word has length 97 [2022-11-26 00:27:24,673 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:27:24,674 INFO L495 AbstractCegarLoop]: Abstraction has 6147 states and 8501 transitions. [2022-11-26 00:27:24,674 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.2) internal successors, (21), 4 states have internal predecessors, (21), 2 states have call successors, (20), 3 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-11-26 00:27:24,674 INFO L276 IsEmpty]: Start isEmpty. Operand 6147 states and 8501 transitions. [2022-11-26 00:27:24,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2022-11-26 00:27:24,680 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:27:24,680 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:27:24,680 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-26 00:27:24,681 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-26 00:27:24,681 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:27:24,681 INFO L85 PathProgramCache]: Analyzing trace with hash -107491879, now seen corresponding path program 1 times [2022-11-26 00:27:24,681 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:27:24,682 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [313387092] [2022-11-26 00:27:24,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:27:24,682 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:27:24,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:27:25,697 INFO L134 CoverageAnalysis]: Checked inductivity of 176 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 176 trivial. 0 not checked. [2022-11-26 00:27:25,698 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:27:25,698 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [313387092] [2022-11-26 00:27:25,698 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [313387092] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:27:25,698 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:27:25,699 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-26 00:27:25,699 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1760571714] [2022-11-26 00:27:25,699 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:27:25,700 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-26 00:27:25,700 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:27:25,700 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-26 00:27:25,701 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-26 00:27:25,701 INFO L87 Difference]: Start difference. First operand 6147 states and 8501 transitions. Second operand has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (27), 3 states have call predecessors, (27), 2 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2022-11-26 00:27:28,347 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:27:30,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:27:30,627 INFO L93 Difference]: Finished difference Result 6457 states and 8839 transitions. [2022-11-26 00:27:30,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-26 00:27:30,628 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (27), 3 states have call predecessors, (27), 2 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 146 [2022-11-26 00:27:30,628 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:27:30,662 INFO L225 Difference]: With dead ends: 6457 [2022-11-26 00:27:30,662 INFO L226 Difference]: Without dead ends: 6343 [2022-11-26 00:27:30,669 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 00:27:30,670 INFO L413 NwaCegarLoop]: 2416 mSDtfsCounter, 1330 mSDsluCounter, 6095 mSDsCounter, 0 mSdLazyCounter, 1313 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1331 SdHoareTripleChecker+Valid, 8511 SdHoareTripleChecker+Invalid, 1315 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1313 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2022-11-26 00:27:30,670 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1331 Valid, 8511 Invalid, 1315 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1313 Invalid, 1 Unknown, 0 Unchecked, 4.4s Time] [2022-11-26 00:27:30,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6343 states. [2022-11-26 00:27:31,231 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6343 to 6343. [2022-11-26 00:27:31,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6343 states, 3576 states have (on average 1.241890380313199) internal successors, (4441), 3796 states have internal predecessors, (4441), 2092 states have call successors, (2092), 683 states have call predecessors, (2092), 672 states have return successors, (2118), 1970 states have call predecessors, (2118), 2086 states have call successors, (2118) [2022-11-26 00:27:31,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6343 states to 6343 states and 8651 transitions. [2022-11-26 00:27:31,275 INFO L78 Accepts]: Start accepts. Automaton has 6343 states and 8651 transitions. Word has length 146 [2022-11-26 00:27:31,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:27:31,276 INFO L495 AbstractCegarLoop]: Abstraction has 6343 states and 8651 transitions. [2022-11-26 00:27:31,276 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (27), 3 states have call predecessors, (27), 2 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2022-11-26 00:27:31,276 INFO L276 IsEmpty]: Start isEmpty. Operand 6343 states and 8651 transitions. [2022-11-26 00:27:31,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 269 [2022-11-26 00:27:31,288 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:27:31,291 INFO L195 NwaCegarLoop]: trace histogram [8, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:27:31,291 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-26 00:27:31,291 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-26 00:27:31,292 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:27:31,292 INFO L85 PathProgramCache]: Analyzing trace with hash -1338135142, now seen corresponding path program 1 times [2022-11-26 00:27:31,292 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:27:31,292 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [267162978] [2022-11-26 00:27:31,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:27:31,293 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:27:31,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:27:31,851 INFO L134 CoverageAnalysis]: Checked inductivity of 165 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 165 trivial. 0 not checked. [2022-11-26 00:27:31,852 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:27:31,852 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [267162978] [2022-11-26 00:27:31,855 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [267162978] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:27:31,855 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:27:31,855 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-26 00:27:31,855 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [860890093] [2022-11-26 00:27:31,856 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:27:31,857 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-26 00:27:31,857 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:27:31,858 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-26 00:27:31,858 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:27:31,858 INFO L87 Difference]: Start difference. First operand 6343 states and 8651 transitions. Second operand has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 3 states have internal predecessors, (113), 3 states have call successors, (48), 2 states have call predecessors, (48), 1 states have return successors, (44), 3 states have call predecessors, (44), 3 states have call successors, (44) [2022-11-26 00:27:34,430 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:27:35,821 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:27:35,821 INFO L93 Difference]: Finished difference Result 10745 states and 14600 transitions. [2022-11-26 00:27:35,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-26 00:27:35,822 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 3 states have internal predecessors, (113), 3 states have call successors, (48), 2 states have call predecessors, (48), 1 states have return successors, (44), 3 states have call predecessors, (44), 3 states have call successors, (44) Word has length 268 [2022-11-26 00:27:35,822 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:27:35,854 INFO L225 Difference]: With dead ends: 10745 [2022-11-26 00:27:35,854 INFO L226 Difference]: Without dead ends: 6289 [2022-11-26 00:27:35,980 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 00:27:35,981 INFO L413 NwaCegarLoop]: 2501 mSDtfsCounter, 1683 mSDsluCounter, 1656 mSDsCounter, 0 mSdLazyCounter, 557 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1684 SdHoareTripleChecker+Valid, 4157 SdHoareTripleChecker+Invalid, 558 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 557 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2022-11-26 00:27:35,981 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1684 Valid, 4157 Invalid, 558 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 557 Invalid, 1 Unknown, 0 Unchecked, 3.5s Time] [2022-11-26 00:27:35,988 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6289 states. [2022-11-26 00:27:36,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6289 to 6287. [2022-11-26 00:27:36,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6287 states, 3541 states have (on average 1.2400451849759955) internal successors, (4391), 3755 states have internal predecessors, (4391), 2071 states have call successors, (2071), 683 states have call predecessors, (2071), 672 states have return successors, (2088), 1952 states have call predecessors, (2088), 2065 states have call successors, (2088) [2022-11-26 00:27:36,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6287 states to 6287 states and 8550 transitions. [2022-11-26 00:27:36,486 INFO L78 Accepts]: Start accepts. Automaton has 6287 states and 8550 transitions. Word has length 268 [2022-11-26 00:27:36,487 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:27:36,487 INFO L495 AbstractCegarLoop]: Abstraction has 6287 states and 8550 transitions. [2022-11-26 00:27:36,487 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 3 states have internal predecessors, (113), 3 states have call successors, (48), 2 states have call predecessors, (48), 1 states have return successors, (44), 3 states have call predecessors, (44), 3 states have call successors, (44) [2022-11-26 00:27:36,487 INFO L276 IsEmpty]: Start isEmpty. Operand 6287 states and 8550 transitions. [2022-11-26 00:27:36,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 315 [2022-11-26 00:27:36,501 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:27:36,501 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 8, 7, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:27:36,501 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-11-26 00:27:36,502 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-26 00:27:36,502 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:27:36,502 INFO L85 PathProgramCache]: Analyzing trace with hash -1454608186, now seen corresponding path program 1 times [2022-11-26 00:27:36,502 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:27:36,503 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [745783577] [2022-11-26 00:27:36,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:27:36,503 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:27:36,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:27:38,441 INFO L134 CoverageAnalysis]: Checked inductivity of 301 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 299 trivial. 0 not checked. [2022-11-26 00:27:38,442 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:27:38,442 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [745783577] [2022-11-26 00:27:38,442 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [745783577] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-26 00:27:38,442 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1932711178] [2022-11-26 00:27:38,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:27:38,448 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:27:38,449 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5b5dcfc-29ec-470d-a6c5-8c1f4040ac18/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:27:38,455 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5b5dcfc-29ec-470d-a6c5-8c1f4040ac18/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-26 00:27:38,486 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5b5dcfc-29ec-470d-a6c5-8c1f4040ac18/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-26 00:27:40,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:27:40,440 INFO L263 TraceCheckSpWp]: Trace formula consists of 4667 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-26 00:27:40,463 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:27:40,519 INFO L134 CoverageAnalysis]: Checked inductivity of 301 backedges. 86 proven. 0 refuted. 0 times theorem prover too weak. 215 trivial. 0 not checked. [2022-11-26 00:27:40,520 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-26 00:27:40,520 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1932711178] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:27:40,520 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-26 00:27:40,521 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 8 [2022-11-26 00:27:40,521 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1922779668] [2022-11-26 00:27:40,521 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:27:40,522 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-26 00:27:40,522 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:27:40,523 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-26 00:27:40,523 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-11-26 00:27:40,523 INFO L87 Difference]: Start difference. First operand 6287 states and 8550 transitions. Second operand has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 3 states have internal predecessors, (121), 2 states have call successors, (53), 2 states have call predecessors, (53), 2 states have return successors, (49), 2 states have call predecessors, (49), 2 states have call successors, (49) [2022-11-26 00:27:43,299 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:27:45,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:27:45,073 INFO L93 Difference]: Finished difference Result 12586 states and 17134 transitions. [2022-11-26 00:27:45,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-26 00:27:45,074 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 3 states have internal predecessors, (121), 2 states have call successors, (53), 2 states have call predecessors, (53), 2 states have return successors, (49), 2 states have call predecessors, (49), 2 states have call successors, (49) Word has length 314 [2022-11-26 00:27:45,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:27:45,112 INFO L225 Difference]: With dead ends: 12586 [2022-11-26 00:27:45,113 INFO L226 Difference]: Without dead ends: 6313 [2022-11-26 00:27:45,154 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 321 GetRequests, 315 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-11-26 00:27:45,155 INFO L413 NwaCegarLoop]: 2216 mSDtfsCounter, 7 mSDsluCounter, 2201 mSDsCounter, 0 mSdLazyCounter, 661 mSolverCounterSat, 6 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 4417 SdHoareTripleChecker+Invalid, 668 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 661 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2022-11-26 00:27:45,155 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 4417 Invalid, 668 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 661 Invalid, 1 Unknown, 0 Unchecked, 3.9s Time] [2022-11-26 00:27:45,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6313 states. [2022-11-26 00:27:45,540 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6313 to 6295. [2022-11-26 00:27:45,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6295 states, 3549 states have (on average 1.2395040856579318) internal successors, (4399), 3763 states have internal predecessors, (4399), 2071 states have call successors, (2071), 683 states have call predecessors, (2071), 672 states have return successors, (2088), 1952 states have call predecessors, (2088), 2065 states have call successors, (2088) [2022-11-26 00:27:45,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6295 states to 6295 states and 8558 transitions. [2022-11-26 00:27:45,570 INFO L78 Accepts]: Start accepts. Automaton has 6295 states and 8558 transitions. Word has length 314 [2022-11-26 00:27:45,571 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:27:45,571 INFO L495 AbstractCegarLoop]: Abstraction has 6295 states and 8558 transitions. [2022-11-26 00:27:45,571 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 3 states have internal predecessors, (121), 2 states have call successors, (53), 2 states have call predecessors, (53), 2 states have return successors, (49), 2 states have call predecessors, (49), 2 states have call successors, (49) [2022-11-26 00:27:45,571 INFO L276 IsEmpty]: Start isEmpty. Operand 6295 states and 8558 transitions. [2022-11-26 00:27:45,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 339 [2022-11-26 00:27:45,586 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:27:45,586 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 7, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:27:45,611 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5b5dcfc-29ec-470d-a6c5-8c1f4040ac18/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-26 00:27:45,805 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5b5dcfc-29ec-470d-a6c5-8c1f4040ac18/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2022-11-26 00:27:45,806 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-26 00:27:45,806 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:27:45,806 INFO L85 PathProgramCache]: Analyzing trace with hash -765226284, now seen corresponding path program 1 times [2022-11-26 00:27:45,806 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:27:45,807 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [337783330] [2022-11-26 00:27:45,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:27:45,807 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:27:46,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:27:47,697 INFO L134 CoverageAnalysis]: Checked inductivity of 339 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 331 trivial. 0 not checked. [2022-11-26 00:27:47,697 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:27:47,698 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [337783330] [2022-11-26 00:27:47,698 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [337783330] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-26 00:27:47,698 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1278806955] [2022-11-26 00:27:47,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:27:47,699 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:27:47,699 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5b5dcfc-29ec-470d-a6c5-8c1f4040ac18/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:27:47,703 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5b5dcfc-29ec-470d-a6c5-8c1f4040ac18/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-26 00:27:47,722 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5b5dcfc-29ec-470d-a6c5-8c1f4040ac18/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-26 00:27:49,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:27:49,768 INFO L263 TraceCheckSpWp]: Trace formula consists of 4805 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-26 00:27:49,797 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:27:49,940 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-11-26 00:27:50,008 INFO L134 CoverageAnalysis]: Checked inductivity of 339 backedges. 119 proven. 2 refuted. 0 times theorem prover too weak. 218 trivial. 0 not checked. [2022-11-26 00:27:50,008 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-26 00:27:50,530 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1278806955] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-26 00:27:50,531 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1622483729] [2022-11-26 00:27:50,570 INFO L159 IcfgInterpreter]: Started Sifa with 199 locations of interest [2022-11-26 00:27:50,570 INFO L166 IcfgInterpreter]: Building call graph [2022-11-26 00:27:50,575 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-26 00:27:50,581 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-26 00:27:50,582 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-26 00:28:16,754 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 00:28:16,761 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 00:28:18,187 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-26 00:28:18,280 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-26 00:28:18,324 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-26 00:28:18,399 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:28:18,401 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 17 [2022-11-26 00:28:18,460 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:28:18,462 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 14 [2022-11-26 00:28:25,211 INFO L197 IcfgInterpreter]: Interpreting procedure ldv_xmalloc with input of size 193 for LOIs [2022-11-26 00:28:25,323 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 00:28:25,345 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-26 00:28:25,507 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-26 00:28:25,540 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 00:28:26,112 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-26 00:28:26,158 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 00:28:26,273 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-26 00:28:26,296 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 00:28:26,753 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-26 00:28:26,774 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 00:28:26,894 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 00:28:26,917 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-26 00:28:27,270 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-26 00:28:27,293 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 00:28:27,473 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 00:28:27,523 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-26 00:28:27,616 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 00:28:27,641 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-26 00:28:27,802 INFO L197 IcfgInterpreter]: Interpreting procedure ldv_is_err with input of size 205 for LOIs [2022-11-26 00:28:27,830 INFO L197 IcfgInterpreter]: Interpreting procedure ldv_assume with input of size 184 for LOIs [2022-11-26 00:28:27,861 INFO L197 IcfgInterpreter]: Interpreting procedure ldv_undef_int with input of size 2440 for LOIs [2022-11-26 00:28:33,415 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-26 00:30:19,315 WARN L233 SmtUtils]: Spent 1.75m on a formula simplification. DAG size of input: 2562 DAG size of output: 2542 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-26 00:31:59,230 WARN L233 SmtUtils]: Spent 1.65m on a formula simplification. DAG size of input: 2440 DAG size of output: 2418 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-26 00:33:37,111 WARN L233 SmtUtils]: Spent 1.62m on a formula simplification. DAG size of input: 2447 DAG size of output: 2426 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-26 00:34:08,951 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1622483729] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:34:08,951 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-26 00:34:08,951 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [7, 7] total 34 [2022-11-26 00:34:08,952 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1208261058] [2022-11-26 00:34:08,952 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:34:08,953 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-11-26 00:34:08,953 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:34:08,954 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-11-26 00:34:08,954 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=140, Invalid=1266, Unknown=0, NotChecked=0, Total=1406 [2022-11-26 00:34:08,955 INFO L87 Difference]: Start difference. First operand 6295 states and 8558 transitions. Second operand has 24 states, 14 states have (on average 8.785714285714286) internal successors, (123), 13 states have internal predecessors, (123), 7 states have call successors, (55), 5 states have call predecessors, (55), 5 states have return successors, (51), 7 states have call predecessors, (51), 7 states have call successors, (51) [2022-11-26 00:35:57,542 WARN L233 SmtUtils]: Spent 1.79m on a formula simplification. DAG size of input: 2622 DAG size of output: 2555 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-26 00:37:45,424 WARN L233 SmtUtils]: Spent 1.78m on a formula simplification. DAG size of input: 2622 DAG size of output: 2555 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)