./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-usb-smsc95xx.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2329fc70 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_331c0cae-88a5-48fd-92d1-6aac14ce6477/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_331c0cae-88a5-48fd-92d1-6aac14ce6477/bin/utaipan-gh47qXpMRh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_331c0cae-88a5-48fd-92d1-6aac14ce6477/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_331c0cae-88a5-48fd-92d1-6aac14ce6477/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-usb-smsc95xx.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_331c0cae-88a5-48fd-92d1-6aac14ce6477/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_331c0cae-88a5-48fd-92d1-6aac14ce6477/bin/utaipan-gh47qXpMRh --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 0a0fd6bb20819f4c1984e3b3e8e83ec7b86578d28f1c3e6d8ae5f0c954457512 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-14 09:54:37,135 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 09:54:37,137 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 09:54:37,159 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 09:54:37,159 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 09:54:37,160 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 09:54:37,161 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 09:54:37,163 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 09:54:37,164 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 09:54:37,165 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 09:54:37,166 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 09:54:37,167 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 09:54:37,167 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 09:54:37,168 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 09:54:37,169 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 09:54:37,170 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 09:54:37,180 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 09:54:37,181 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 09:54:37,182 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 09:54:37,184 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 09:54:37,185 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 09:54:37,186 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 09:54:37,187 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 09:54:37,188 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 09:54:37,191 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 09:54:37,191 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 09:54:37,191 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 09:54:37,192 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 09:54:37,192 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 09:54:37,193 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 09:54:37,193 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 09:54:37,194 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 09:54:37,195 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 09:54:37,195 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 09:54:37,196 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 09:54:37,196 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 09:54:37,197 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 09:54:37,197 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 09:54:37,197 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 09:54:37,198 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 09:54:37,198 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 09:54:37,199 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_331c0cae-88a5-48fd-92d1-6aac14ce6477/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-12-14 09:54:37,220 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 09:54:37,220 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 09:54:37,220 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 09:54:37,220 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 09:54:37,221 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 09:54:37,221 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 09:54:37,221 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 09:54:37,221 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 09:54:37,222 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 09:54:37,222 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 09:54:37,222 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 09:54:37,222 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 09:54:37,222 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 09:54:37,222 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 09:54:37,222 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 09:54:37,223 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 09:54:37,223 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 09:54:37,223 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 09:54:37,224 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 09:54:37,224 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 09:54:37,224 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 09:54:37,224 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 09:54:37,224 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 09:54:37,224 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 09:54:37,225 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 09:54:37,225 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 09:54:37,225 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 09:54:37,225 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 09:54:37,225 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 09:54:37,225 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 09:54:37,226 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 09:54:37,226 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 09:54:37,226 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 09:54:37,226 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 09:54:37,226 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 09:54:37,226 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 09:54:37,227 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 09:54:37,227 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 09:54:37,227 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_331c0cae-88a5-48fd-92d1-6aac14ce6477/bin/utaipan-gh47qXpMRh/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_331c0cae-88a5-48fd-92d1-6aac14ce6477/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0a0fd6bb20819f4c1984e3b3e8e83ec7b86578d28f1c3e6d8ae5f0c954457512 [2022-12-14 09:54:37,401 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 09:54:37,420 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 09:54:37,423 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 09:54:37,424 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 09:54:37,424 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 09:54:37,425 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_331c0cae-88a5-48fd-92d1-6aac14ce6477/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-usb-smsc95xx.cil.i [2022-12-14 09:54:39,930 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 09:54:40,293 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 09:54:40,294 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_331c0cae-88a5-48fd-92d1-6aac14ce6477/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-usb-smsc95xx.cil.i [2022-12-14 09:54:40,325 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_331c0cae-88a5-48fd-92d1-6aac14ce6477/bin/utaipan-gh47qXpMRh/data/9f54cc862/e0fa0f9ab57845a9a7409fd37b32f791/FLAG49f92519e [2022-12-14 09:54:40,480 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_331c0cae-88a5-48fd-92d1-6aac14ce6477/bin/utaipan-gh47qXpMRh/data/9f54cc862/e0fa0f9ab57845a9a7409fd37b32f791 [2022-12-14 09:54:40,482 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 09:54:40,483 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 09:54:40,484 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 09:54:40,484 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 09:54:40,487 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 09:54:40,487 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 09:54:40" (1/1) ... [2022-12-14 09:54:40,488 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@16b83edf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:54:40, skipping insertion in model container [2022-12-14 09:54:40,488 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 09:54:40" (1/1) ... [2022-12-14 09:54:40,493 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 09:54:40,610 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 09:54:41,056 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_unlock_irqrestore [2022-12-14 09:54:41,195 WARN L623 FunctionHandler]: Unknown extern function __dev_kfree_skb_any [2022-12-14 09:54:41,253 WARN L623 FunctionHandler]: Unknown extern function get_random_bytes [2022-12-14 09:54:41,401 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 09:54:41,410 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 09:54:41,435 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 09:54:41,440 WARN L623 FunctionHandler]: Unknown extern function mutex_lock_nested [2022-12-14 09:54:41,440 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 09:54:41,442 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 09:54:41,443 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 09:54:41,444 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 09:54:41,445 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 09:54:41,451 WARN L623 FunctionHandler]: Unknown extern function mutex_lock_nested [2022-12-14 09:54:41,451 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 09:54:41,452 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 09:54:41,454 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 09:54:41,455 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 09:54:41,455 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 09:54:41,480 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 09:54:41,481 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 09:54:41,481 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 09:54:41,487 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 09:54:41,488 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 09:54:41,489 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 09:54:41,494 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 09:54:41,495 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 09:54:41,502 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 09:54:41,503 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 09:54:41,504 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 09:54:41,511 WARN L623 FunctionHandler]: Unknown extern function usbnet_write_cmd_async [2022-12-14 09:54:41,511 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 09:54:41,518 WARN L623 FunctionHandler]: Unknown extern function crc32_le [2022-12-14 09:54:41,518 WARN L623 FunctionHandler]: Unknown extern function bitrev32 [2022-12-14 09:54:41,528 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-12-14 09:54:41,530 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-12-14 09:54:41,534 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-12-14 09:54:41,536 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-12-14 09:54:41,537 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 09:54:41,538 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 09:54:41,538 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 09:54:41,547 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-12-14 09:54:41,552 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-12-14 09:54:41,562 WARN L623 FunctionHandler]: Unknown extern function mii_check_media [2022-12-14 09:54:41,562 WARN L623 FunctionHandler]: Unknown extern function mii_ethtool_gset [2022-12-14 09:54:41,565 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-12-14 09:54:41,567 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 09:54:41,573 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 09:54:41,575 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-12-14 09:54:41,576 WARN L623 FunctionHandler]: Unknown extern function usbnet_defer_kevent [2022-12-14 09:54:41,576 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 09:54:41,583 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-12-14 09:54:41,596 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 09:54:41,604 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 09:54:41,605 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 09:54:41,615 WARN L623 FunctionHandler]: Unknown extern function device_set_wakeup_enable [2022-12-14 09:54:41,616 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 09:54:41,623 WARN L623 FunctionHandler]: Unknown extern function generic_mii_ioctl [2022-12-14 09:54:41,630 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-12-14 09:54:41,632 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-12-14 09:54:41,654 WARN L623 FunctionHandler]: Unknown extern function msleep [2022-12-14 09:54:41,655 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 09:54:41,655 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 09:54:41,656 WARN L623 FunctionHandler]: Unknown extern function mii_nway_restart [2022-12-14 09:54:41,657 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-12-14 09:54:41,663 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-12-14 09:54:41,664 WARN L623 FunctionHandler]: Unknown extern function msleep [2022-12-14 09:54:41,665 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 09:54:41,665 WARN L623 FunctionHandler]: Unknown extern function msleep [2022-12-14 09:54:41,666 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 09:54:41,668 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-12-14 09:54:41,669 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-12-14 09:54:41,672 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-12-14 09:54:41,674 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-12-14 09:54:41,676 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-12-14 09:54:41,678 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-12-14 09:54:41,679 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-12-14 09:54:41,681 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-12-14 09:54:41,683 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-12-14 09:54:41,685 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 09:54:41,686 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 09:54:41,687 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 09:54:41,688 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 09:54:41,689 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-12-14 09:54:41,696 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 09:54:41,697 WARN L623 FunctionHandler]: Unknown extern function usbnet_get_endpoints [2022-12-14 09:54:41,697 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 09:54:41,699 WARN L623 FunctionHandler]: Unknown extern function __raw_spin_lock_init [2022-12-14 09:54:41,707 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-12-14 09:54:41,707 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 09:54:41,711 WARN L623 FunctionHandler]: Unknown extern function crc16 [2022-12-14 09:54:41,711 WARN L623 FunctionHandler]: Unknown extern function bitrev16 [2022-12-14 09:54:41,716 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-12-14 09:54:41,743 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-12-14 09:54:41,751 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-12-14 09:54:41,752 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 09:54:41,753 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-12-14 09:54:41,754 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 09:54:41,755 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-12-14 09:54:41,755 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 09:54:41,757 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-12-14 09:54:41,762 WARN L623 FunctionHandler]: Unknown extern function usbnet_suspend [2022-12-14 09:54:41,762 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 09:54:41,762 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 09:54:41,763 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-12-14 09:54:41,765 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 09:54:41,765 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-12-14 09:54:41,766 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 09:54:41,768 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-12-14 09:54:41,771 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-12-14 09:54:41,774 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-12-14 09:54:41,776 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-12-14 09:54:41,779 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 09:54:41,780 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 09:54:41,782 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-12-14 09:54:41,783 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-12-14 09:54:41,783 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-12-14 09:54:41,784 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-12-14 09:54:41,785 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-12-14 09:54:41,785 WARN L623 FunctionHandler]: Unknown extern function usbnet_resume [2022-12-14 09:54:41,792 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-12-14 09:54:41,794 WARN L623 FunctionHandler]: Unknown extern function usbnet_resume [2022-12-14 09:54:41,794 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 09:54:41,798 WARN L623 FunctionHandler]: Unknown extern function skb_trim [2022-12-14 09:54:41,803 WARN L623 FunctionHandler]: Unknown extern function skb_pull [2022-12-14 09:54:41,804 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-12-14 09:54:41,807 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-12-14 09:54:41,808 WARN L623 FunctionHandler]: Unknown extern function skb_trim [2022-12-14 09:54:41,809 WARN L623 FunctionHandler]: Unknown extern function skb_clone [2022-12-14 09:54:41,810 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 09:54:41,811 WARN L623 FunctionHandler]: Unknown extern function skb_trim [2022-12-14 09:54:41,811 WARN L623 FunctionHandler]: Unknown extern function usbnet_skb_return [2022-12-14 09:54:41,811 WARN L623 FunctionHandler]: Unknown extern function skb_pull [2022-12-14 09:54:41,811 WARN L623 FunctionHandler]: Unknown extern function skb_pull [2022-12-14 09:54:41,822 WARN L623 FunctionHandler]: Unknown extern function skb_copy_expand [2022-12-14 09:54:41,823 WARN L623 FunctionHandler]: Unknown extern function csum_partial [2022-12-14 09:54:41,824 WARN L623 FunctionHandler]: Unknown extern function skb_push [2022-12-14 09:54:41,824 WARN L623 FunctionHandler]: Unknown extern function skb_push [2022-12-14 09:54:41,825 WARN L623 FunctionHandler]: Unknown extern function skb_push [2022-12-14 09:54:41,829 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-12-14 09:54:41,830 WARN L623 FunctionHandler]: Unknown extern function usb_autopm_get_interface_no_resume [2022-12-14 09:54:41,830 WARN L623 FunctionHandler]: Unknown extern function usb_autopm_put_interface [2022-12-14 09:54:42,073 WARN L623 FunctionHandler]: Unknown extern function usbnet_get_link [2022-12-14 09:54:42,074 WARN L623 FunctionHandler]: Unknown extern function usbnet_get_msglevel [2022-12-14 09:54:42,074 WARN L623 FunctionHandler]: Unknown extern function usbnet_get_settings [2022-12-14 09:54:42,075 WARN L623 FunctionHandler]: Unknown extern function usbnet_change_mtu [2022-12-14 09:54:42,076 WARN L623 FunctionHandler]: Unknown extern function usbnet_open [2022-12-14 09:54:42,076 WARN L623 FunctionHandler]: Unknown extern function eth_mac_addr [2022-12-14 09:54:42,077 WARN L623 FunctionHandler]: Unknown extern function usbnet_start_xmit [2022-12-14 09:54:42,077 WARN L623 FunctionHandler]: Unknown extern function usbnet_get_drvinfo [2022-12-14 09:54:42,078 WARN L623 FunctionHandler]: Unknown extern function usbnet_stop [2022-12-14 09:54:42,078 WARN L623 FunctionHandler]: Unknown extern function usbnet_tx_timeout [2022-12-14 09:54:42,079 WARN L623 FunctionHandler]: Unknown extern function eth_validate_addr [2022-12-14 09:54:42,079 WARN L623 FunctionHandler]: Unknown extern function usbnet_nway_reset [2022-12-14 09:54:42,080 WARN L623 FunctionHandler]: Unknown extern function usbnet_set_msglevel [2022-12-14 09:54:42,080 WARN L623 FunctionHandler]: Unknown extern function usbnet_set_settings [2022-12-14 09:54:42,083 WARN L623 FunctionHandler]: Unknown extern function ldv_initialize [2022-12-14 09:54:42,095 WARN L623 FunctionHandler]: Unknown extern function usbnet_probe [2022-12-14 09:54:42,095 WARN L623 FunctionHandler]: Unknown extern function usbnet_disconnect [2022-12-14 09:54:42,096 WARN L623 FunctionHandler]: Unknown extern function ldv_pre_usb_register_driver [2022-12-14 09:54:42,099 WARN L623 FunctionHandler]: Unknown extern function ldv_pre_probe [2022-12-14 09:54:42,101 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-12-14 09:54:42,102 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-12-14 09:54:42,102 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-12-14 09:54:42,102 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-12-14 09:54:42,103 WARN L623 FunctionHandler]: Unknown extern function usb_register_driver [2022-12-14 09:54:42,103 WARN L623 FunctionHandler]: Unknown extern function usb_deregister [2022-12-14 09:54:42,143 WARN L623 FunctionHandler]: Unknown extern function ldv_check_alloc_flags [2022-12-14 09:54:42,143 WARN L623 FunctionHandler]: Unknown extern function ldv_after_alloc [2022-12-14 09:54:42,150 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 09:54:42,537 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_331c0cae-88a5-48fd-92d1-6aac14ce6477/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-usb-smsc95xx.cil.i[348095,348108] [2022-12-14 09:54:42,540 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_331c0cae-88a5-48fd-92d1-6aac14ce6477/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-usb-smsc95xx.cil.i[348264,348277] [2022-12-14 09:54:42,541 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_331c0cae-88a5-48fd-92d1-6aac14ce6477/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-usb-smsc95xx.cil.i[348431,348444] [2022-12-14 09:54:42,541 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_331c0cae-88a5-48fd-92d1-6aac14ce6477/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-usb-smsc95xx.cil.i[348599,348612] [2022-12-14 09:54:42,554 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 09:54:42,587 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 09:54:42,664 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_unlock_irqrestore [2022-12-14 09:54:42,668 WARN L623 FunctionHandler]: Unknown extern function __dev_kfree_skb_any [2022-12-14 09:54:42,670 WARN L623 FunctionHandler]: Unknown extern function get_random_bytes [2022-12-14 09:54:42,674 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 09:54:42,676 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 09:54:42,677 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 09:54:42,678 WARN L623 FunctionHandler]: Unknown extern function mutex_lock_nested [2022-12-14 09:54:42,678 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 09:54:42,679 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 09:54:42,679 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 09:54:42,680 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 09:54:42,680 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 09:54:42,681 WARN L623 FunctionHandler]: Unknown extern function mutex_lock_nested [2022-12-14 09:54:42,681 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 09:54:42,682 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 09:54:42,683 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 09:54:42,683 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 09:54:42,683 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 09:54:42,685 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 09:54:42,685 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 09:54:42,685 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 09:54:42,686 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 09:54:42,687 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 09:54:42,687 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 09:54:42,688 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 09:54:42,689 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 09:54:42,690 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 09:54:42,691 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 09:54:42,692 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 09:54:42,693 WARN L623 FunctionHandler]: Unknown extern function usbnet_write_cmd_async [2022-12-14 09:54:42,693 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 09:54:42,694 WARN L623 FunctionHandler]: Unknown extern function crc32_le [2022-12-14 09:54:42,694 WARN L623 FunctionHandler]: Unknown extern function bitrev32 [2022-12-14 09:54:42,695 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-12-14 09:54:42,697 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-12-14 09:54:42,699 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-12-14 09:54:42,700 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-12-14 09:54:42,701 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 09:54:42,702 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 09:54:42,702 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 09:54:42,704 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-12-14 09:54:42,706 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-12-14 09:54:42,707 WARN L623 FunctionHandler]: Unknown extern function mii_check_media [2022-12-14 09:54:42,708 WARN L623 FunctionHandler]: Unknown extern function mii_ethtool_gset [2022-12-14 09:54:42,708 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-12-14 09:54:42,710 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 09:54:42,711 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 09:54:42,712 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-12-14 09:54:42,712 WARN L623 FunctionHandler]: Unknown extern function usbnet_defer_kevent [2022-12-14 09:54:42,712 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 09:54:42,714 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-12-14 09:54:42,716 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 09:54:42,749 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 09:54:42,750 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 09:54:42,751 WARN L623 FunctionHandler]: Unknown extern function device_set_wakeup_enable [2022-12-14 09:54:42,752 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 09:54:42,753 WARN L623 FunctionHandler]: Unknown extern function generic_mii_ioctl [2022-12-14 09:54:42,755 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-12-14 09:54:42,756 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-12-14 09:54:42,760 WARN L623 FunctionHandler]: Unknown extern function msleep [2022-12-14 09:54:42,761 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 09:54:42,761 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 09:54:42,762 WARN L623 FunctionHandler]: Unknown extern function mii_nway_restart [2022-12-14 09:54:42,762 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-12-14 09:54:42,764 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-12-14 09:54:42,764 WARN L623 FunctionHandler]: Unknown extern function msleep [2022-12-14 09:54:42,765 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 09:54:42,765 WARN L623 FunctionHandler]: Unknown extern function msleep [2022-12-14 09:54:42,766 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 09:54:42,767 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-12-14 09:54:42,768 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-12-14 09:54:42,769 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-12-14 09:54:42,770 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-12-14 09:54:42,771 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-12-14 09:54:42,772 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-12-14 09:54:42,773 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-12-14 09:54:42,774 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-12-14 09:54:42,775 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-12-14 09:54:42,776 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 09:54:42,776 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 09:54:42,777 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 09:54:42,777 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 09:54:42,778 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-12-14 09:54:42,780 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 09:54:42,780 WARN L623 FunctionHandler]: Unknown extern function usbnet_get_endpoints [2022-12-14 09:54:42,780 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 09:54:42,781 WARN L623 FunctionHandler]: Unknown extern function __raw_spin_lock_init [2022-12-14 09:54:42,784 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-12-14 09:54:42,784 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 09:54:42,784 WARN L623 FunctionHandler]: Unknown extern function crc16 [2022-12-14 09:54:42,785 WARN L623 FunctionHandler]: Unknown extern function bitrev16 [2022-12-14 09:54:42,786 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-12-14 09:54:42,791 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-12-14 09:54:42,793 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-12-14 09:54:42,793 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 09:54:42,794 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-12-14 09:54:42,794 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 09:54:42,795 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-12-14 09:54:42,795 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 09:54:42,796 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-12-14 09:54:42,797 WARN L623 FunctionHandler]: Unknown extern function usbnet_suspend [2022-12-14 09:54:42,798 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 09:54:42,798 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 09:54:42,799 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-12-14 09:54:42,800 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 09:54:42,800 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-12-14 09:54:42,801 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 09:54:42,802 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-12-14 09:54:42,804 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-12-14 09:54:42,806 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-12-14 09:54:42,808 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-12-14 09:54:42,810 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 09:54:42,811 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 09:54:42,813 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-12-14 09:54:42,813 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-12-14 09:54:42,814 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-12-14 09:54:42,814 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-12-14 09:54:42,815 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-12-14 09:54:42,815 WARN L623 FunctionHandler]: Unknown extern function usbnet_resume [2022-12-14 09:54:42,817 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-12-14 09:54:42,818 WARN L623 FunctionHandler]: Unknown extern function usbnet_resume [2022-12-14 09:54:42,819 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 09:54:42,819 WARN L623 FunctionHandler]: Unknown extern function skb_trim [2022-12-14 09:54:42,820 WARN L623 FunctionHandler]: Unknown extern function skb_pull [2022-12-14 09:54:42,821 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-12-14 09:54:42,823 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-12-14 09:54:42,824 WARN L623 FunctionHandler]: Unknown extern function skb_trim [2022-12-14 09:54:42,824 WARN L623 FunctionHandler]: Unknown extern function skb_clone [2022-12-14 09:54:42,825 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 09:54:42,825 WARN L623 FunctionHandler]: Unknown extern function skb_trim [2022-12-14 09:54:42,826 WARN L623 FunctionHandler]: Unknown extern function usbnet_skb_return [2022-12-14 09:54:42,826 WARN L623 FunctionHandler]: Unknown extern function skb_pull [2022-12-14 09:54:42,826 WARN L623 FunctionHandler]: Unknown extern function skb_pull [2022-12-14 09:54:42,828 WARN L623 FunctionHandler]: Unknown extern function skb_copy_expand [2022-12-14 09:54:42,829 WARN L623 FunctionHandler]: Unknown extern function csum_partial [2022-12-14 09:54:42,829 WARN L623 FunctionHandler]: Unknown extern function skb_push [2022-12-14 09:54:42,830 WARN L623 FunctionHandler]: Unknown extern function skb_push [2022-12-14 09:54:42,830 WARN L623 FunctionHandler]: Unknown extern function skb_push [2022-12-14 09:54:42,831 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-12-14 09:54:42,831 WARN L623 FunctionHandler]: Unknown extern function usb_autopm_get_interface_no_resume [2022-12-14 09:54:42,832 WARN L623 FunctionHandler]: Unknown extern function usb_autopm_put_interface [2022-12-14 09:54:42,840 WARN L623 FunctionHandler]: Unknown extern function usbnet_get_link [2022-12-14 09:54:42,840 WARN L623 FunctionHandler]: Unknown extern function usbnet_get_msglevel [2022-12-14 09:54:42,840 WARN L623 FunctionHandler]: Unknown extern function usbnet_get_settings [2022-12-14 09:54:42,841 WARN L623 FunctionHandler]: Unknown extern function usbnet_change_mtu [2022-12-14 09:54:42,841 WARN L623 FunctionHandler]: Unknown extern function usbnet_open [2022-12-14 09:54:42,841 WARN L623 FunctionHandler]: Unknown extern function eth_mac_addr [2022-12-14 09:54:42,842 WARN L623 FunctionHandler]: Unknown extern function usbnet_start_xmit [2022-12-14 09:54:42,842 WARN L623 FunctionHandler]: Unknown extern function usbnet_get_drvinfo [2022-12-14 09:54:42,842 WARN L623 FunctionHandler]: Unknown extern function usbnet_stop [2022-12-14 09:54:42,842 WARN L623 FunctionHandler]: Unknown extern function usbnet_tx_timeout [2022-12-14 09:54:42,843 WARN L623 FunctionHandler]: Unknown extern function eth_validate_addr [2022-12-14 09:54:42,843 WARN L623 FunctionHandler]: Unknown extern function usbnet_nway_reset [2022-12-14 09:54:42,843 WARN L623 FunctionHandler]: Unknown extern function usbnet_set_msglevel [2022-12-14 09:54:42,844 WARN L623 FunctionHandler]: Unknown extern function usbnet_set_settings [2022-12-14 09:54:42,846 WARN L623 FunctionHandler]: Unknown extern function ldv_initialize [2022-12-14 09:54:42,854 WARN L623 FunctionHandler]: Unknown extern function usbnet_probe [2022-12-14 09:54:42,855 WARN L623 FunctionHandler]: Unknown extern function usbnet_disconnect [2022-12-14 09:54:42,855 WARN L623 FunctionHandler]: Unknown extern function ldv_pre_usb_register_driver [2022-12-14 09:54:42,858 WARN L623 FunctionHandler]: Unknown extern function ldv_pre_probe [2022-12-14 09:54:42,860 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-12-14 09:54:42,860 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-12-14 09:54:42,860 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-12-14 09:54:42,860 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-12-14 09:54:42,861 WARN L623 FunctionHandler]: Unknown extern function usb_register_driver [2022-12-14 09:54:42,861 WARN L623 FunctionHandler]: Unknown extern function usb_deregister [2022-12-14 09:54:42,863 WARN L623 FunctionHandler]: Unknown extern function ldv_check_alloc_flags [2022-12-14 09:54:42,863 WARN L623 FunctionHandler]: Unknown extern function ldv_after_alloc [2022-12-14 09:54:42,863 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 09:54:42,876 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_331c0cae-88a5-48fd-92d1-6aac14ce6477/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-usb-smsc95xx.cil.i[348095,348108] [2022-12-14 09:54:42,877 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_331c0cae-88a5-48fd-92d1-6aac14ce6477/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-usb-smsc95xx.cil.i[348264,348277] [2022-12-14 09:54:42,877 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_331c0cae-88a5-48fd-92d1-6aac14ce6477/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-usb-smsc95xx.cil.i[348431,348444] [2022-12-14 09:54:42,877 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_331c0cae-88a5-48fd-92d1-6aac14ce6477/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-usb-smsc95xx.cil.i[348599,348612] [2022-12-14 09:54:42,880 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 09:54:43,039 INFO L208 MainTranslator]: Completed translation [2022-12-14 09:54:43,040 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:54:43 WrapperNode [2022-12-14 09:54:43,040 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 09:54:43,041 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 09:54:43,041 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 09:54:43,041 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 09:54:43,048 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:54:43" (1/1) ... [2022-12-14 09:54:43,116 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:54:43" (1/1) ... [2022-12-14 09:54:43,244 INFO L138 Inliner]: procedures = 391, calls = 2978, calls flagged for inlining = 179, calls inlined = 164, statements flattened = 6208 [2022-12-14 09:54:43,245 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 09:54:43,245 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 09:54:43,245 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 09:54:43,246 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 09:54:43,255 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:54:43" (1/1) ... [2022-12-14 09:54:43,255 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:54:43" (1/1) ... [2022-12-14 09:54:43,280 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:54:43" (1/1) ... [2022-12-14 09:54:43,280 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:54:43" (1/1) ... [2022-12-14 09:54:43,378 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:54:43" (1/1) ... [2022-12-14 09:54:43,389 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:54:43" (1/1) ... [2022-12-14 09:54:43,406 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:54:43" (1/1) ... [2022-12-14 09:54:43,415 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:54:43" (1/1) ... [2022-12-14 09:54:43,438 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 09:54:43,439 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 09:54:43,439 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 09:54:43,439 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 09:54:43,440 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:54:43" (1/1) ... [2022-12-14 09:54:43,444 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 09:54:43,451 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_331c0cae-88a5-48fd-92d1-6aac14ce6477/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 09:54:43,461 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_331c0cae-88a5-48fd-92d1-6aac14ce6477/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 09:54:43,463 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_331c0cae-88a5-48fd-92d1-6aac14ce6477/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 09:54:43,496 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-12-14 09:54:43,496 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-12-14 09:54:43,496 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_nway_reset [2022-12-14 09:54:43,496 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_nway_reset [2022-12-14 09:54:43,496 INFO L130 BoogieDeclarations]: Found specification of procedure smsc95xx_link_reset [2022-12-14 09:54:43,496 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc95xx_link_reset [2022-12-14 09:54:43,496 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-12-14 09:54:43,496 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-12-14 09:54:43,496 INFO L130 BoogieDeclarations]: Found specification of procedure smsc_crc [2022-12-14 09:54:43,496 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc_crc [2022-12-14 09:54:43,496 INFO L130 BoogieDeclarations]: Found specification of procedure smsc95xx_ethtool_getregslen [2022-12-14 09:54:43,496 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc95xx_ethtool_getregslen [2022-12-14 09:54:43,497 INFO L130 BoogieDeclarations]: Found specification of procedure __smsc95xx_mdio_write [2022-12-14 09:54:43,497 INFO L138 BoogieDeclarations]: Found implementation of procedure __smsc95xx_mdio_write [2022-12-14 09:54:43,497 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-12-14 09:54:43,497 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-12-14 09:54:43,497 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_61 [2022-12-14 09:54:43,497 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_61 [2022-12-14 09:54:43,497 INFO L130 BoogieDeclarations]: Found specification of procedure smsc95xx_write_reg_nopm [2022-12-14 09:54:43,497 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc95xx_write_reg_nopm [2022-12-14 09:54:43,497 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_smsc95xx_driver_exit_6_2 [2022-12-14 09:54:43,497 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_smsc95xx_driver_exit_6_2 [2022-12-14 09:54:43,497 INFO L130 BoogieDeclarations]: Found specification of procedure smsc95xx_enable_phy_wakeup_interrupts [2022-12-14 09:54:43,497 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc95xx_enable_phy_wakeup_interrupts [2022-12-14 09:54:43,497 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-12-14 09:54:43,497 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-12-14 09:54:43,498 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_write_cmd_nopm [2022-12-14 09:54:43,498 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2022-12-14 09:54:43,498 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2022-12-14 09:54:43,498 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-12-14 09:54:43,498 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-12-14 09:54:43,498 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-14 09:54:43,498 INFO L130 BoogieDeclarations]: Found specification of procedure smsc95xx_write_reg [2022-12-14 09:54:43,498 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc95xx_write_reg [2022-12-14 09:54:43,498 INFO L130 BoogieDeclarations]: Found specification of procedure smsc95xx_rx_csum_offload [2022-12-14 09:54:43,498 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc95xx_rx_csum_offload [2022-12-14 09:54:43,498 INFO L130 BoogieDeclarations]: Found specification of procedure smsc95xx_read_reg_nopm [2022-12-14 09:54:43,498 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc95xx_read_reg_nopm [2022-12-14 09:54:43,498 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-12-14 09:54:43,498 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_resume [2022-12-14 09:54:43,499 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_resume [2022-12-14 09:54:43,499 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-12-14 09:54:43,499 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-12-14 09:54:43,499 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-12-14 09:54:43,499 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_tx_timeout [2022-12-14 09:54:43,499 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_tx_timeout [2022-12-14 09:54:43,499 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-14 09:54:43,499 INFO L130 BoogieDeclarations]: Found specification of procedure skb_headroom [2022-12-14 09:54:43,499 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_headroom [2022-12-14 09:54:43,499 INFO L130 BoogieDeclarations]: Found specification of procedure smsc95xx_mdio_write_nopm [2022-12-14 09:54:43,499 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc95xx_mdio_write_nopm [2022-12-14 09:54:43,499 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-12-14 09:54:43,499 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-12-14 09:54:43,499 INFO L130 BoogieDeclarations]: Found specification of procedure smsc95xx_ethtool_get_eeprom_len [2022-12-14 09:54:43,500 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc95xx_ethtool_get_eeprom_len [2022-12-14 09:54:43,500 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_write_cmd [2022-12-14 09:54:43,500 INFO L130 BoogieDeclarations]: Found specification of procedure skb_trim [2022-12-14 09:54:43,500 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_trim [2022-12-14 09:54:43,500 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_read_cmd_nopm [2022-12-14 09:54:43,500 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2022-12-14 09:54:43,500 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2022-12-14 09:54:43,500 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-12-14 09:54:43,500 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2022-12-14 09:54:43,500 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2022-12-14 09:54:43,500 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2022-12-14 09:54:43,500 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2022-12-14 09:54:43,500 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 09:54:43,500 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-12-14 09:54:43,501 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-12-14 09:54:43,501 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-12-14 09:54:43,501 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-12-14 09:54:43,501 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-12-14 09:54:43,501 INFO L130 BoogieDeclarations]: Found specification of procedure smsc95xx_start_rx_path [2022-12-14 09:54:43,501 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc95xx_start_rx_path [2022-12-14 09:54:43,501 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2022-12-14 09:54:43,501 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2022-12-14 09:54:43,501 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_open [2022-12-14 09:54:43,501 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_open [2022-12-14 09:54:43,501 INFO L130 BoogieDeclarations]: Found specification of procedure __smsc95xx_write_reg [2022-12-14 09:54:43,501 INFO L138 BoogieDeclarations]: Found implementation of procedure __smsc95xx_write_reg [2022-12-14 09:54:43,501 INFO L130 BoogieDeclarations]: Found specification of procedure smsc95xx_set_features [2022-12-14 09:54:43,501 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc95xx_set_features [2022-12-14 09:54:43,501 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2022-12-14 09:54:43,502 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2022-12-14 09:54:43,502 INFO L130 BoogieDeclarations]: Found specification of procedure smsc95xx_wait_eeprom [2022-12-14 09:54:43,502 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc95xx_wait_eeprom [2022-12-14 09:54:43,502 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 09:54:43,502 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 09:54:43,502 INFO L130 BoogieDeclarations]: Found specification of procedure __smsc95xx_read_reg [2022-12-14 09:54:43,502 INFO L138 BoogieDeclarations]: Found implementation of procedure __smsc95xx_read_reg [2022-12-14 09:54:43,502 INFO L130 BoogieDeclarations]: Found specification of procedure usb_get_intfdata [2022-12-14 09:54:43,502 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_get_intfdata [2022-12-14 09:54:43,502 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2022-12-14 09:54:43,502 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2022-12-14 09:54:43,502 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-12-14 09:54:43,502 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-12-14 09:54:43,502 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-12-14 09:54:43,502 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-12-14 09:54:43,503 INFO L130 BoogieDeclarations]: Found specification of procedure skb_push [2022-12-14 09:54:43,503 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_push [2022-12-14 09:54:43,503 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-12-14 09:54:43,503 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-12-14 09:54:43,503 INFO L130 BoogieDeclarations]: Found specification of procedure smsc95xx_reset [2022-12-14 09:54:43,503 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc95xx_reset [2022-12-14 09:54:43,503 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u8~0~X~~u8~0~X~~u16~0~X~~u16~0~X~$Pointer$~X~~u16~0~TO~int [2022-12-14 09:54:43,503 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u8~0~X~~u8~0~X~~u16~0~X~~u16~0~X~$Pointer$~X~~u16~0~TO~int [2022-12-14 09:54:43,503 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_stop [2022-12-14 09:54:43,503 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_stop [2022-12-14 09:54:43,503 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_mac_cr_lock_of_smsc95xx_priv [2022-12-14 09:54:43,503 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_mac_cr_lock_of_smsc95xx_priv [2022-12-14 09:54:43,503 INFO L130 BoogieDeclarations]: Found specification of procedure smsc95xx_read_reg [2022-12-14 09:54:43,503 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc95xx_read_reg [2022-12-14 09:54:43,503 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-12-14 09:54:43,504 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-12-14 09:54:43,504 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-12-14 09:54:43,504 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-12-14 09:54:43,504 INFO L130 BoogieDeclarations]: Found specification of procedure smsc95xx_mdio_write [2022-12-14 09:54:43,504 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc95xx_mdio_write [2022-12-14 09:54:43,504 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-14 09:54:43,504 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2022-12-14 09:54:43,504 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2022-12-14 09:54:43,504 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-12-14 09:54:43,504 INFO L130 BoogieDeclarations]: Found specification of procedure smsc95xx_enter_suspend1 [2022-12-14 09:54:43,504 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc95xx_enter_suspend1 [2022-12-14 09:54:43,504 INFO L130 BoogieDeclarations]: Found specification of procedure smsc95xx_enter_suspend2 [2022-12-14 09:54:43,504 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc95xx_enter_suspend2 [2022-12-14 09:54:43,504 INFO L130 BoogieDeclarations]: Found specification of procedure smsc95xx_read_eeprom [2022-12-14 09:54:43,504 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc95xx_read_eeprom [2022-12-14 09:54:43,505 INFO L130 BoogieDeclarations]: Found specification of procedure smsc95xx_set_multicast [2022-12-14 09:54:43,505 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc95xx_set_multicast [2022-12-14 09:54:43,505 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-12-14 09:54:43,505 INFO L130 BoogieDeclarations]: Found specification of procedure skb_checksum_start_offset [2022-12-14 09:54:43,505 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_checksum_start_offset [2022-12-14 09:54:43,505 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2022-12-14 09:54:43,505 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2022-12-14 09:54:43,505 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2022-12-14 09:54:43,505 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2022-12-14 09:54:43,505 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-12-14 09:54:43,505 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-12-14 09:54:43,505 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-12-14 09:54:43,505 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-12-14 09:54:43,505 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-12-14 09:54:43,505 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-12-14 09:54:43,505 INFO L130 BoogieDeclarations]: Found specification of procedure smsc95xx_mdio_read [2022-12-14 09:54:43,506 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc95xx_mdio_read [2022-12-14 09:54:43,506 INFO L130 BoogieDeclarations]: Found specification of procedure __smsc95xx_phy_wait_not_busy [2022-12-14 09:54:43,506 INFO L138 BoogieDeclarations]: Found implementation of procedure __smsc95xx_phy_wait_not_busy [2022-12-14 09:54:43,506 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_disconnect [2022-12-14 09:54:43,506 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_disconnect [2022-12-14 09:54:43,506 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_instance_release_2_4 [2022-12-14 09:54:43,506 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_instance_release_2_4 [2022-12-14 09:54:43,506 INFO L130 BoogieDeclarations]: Found specification of procedure smsc95xx_write_reg_async [2022-12-14 09:54:43,506 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc95xx_write_reg_async [2022-12-14 09:54:43,506 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-12-14 09:54:43,506 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-12-14 09:54:43,506 INFO L130 BoogieDeclarations]: Found specification of procedure smsc95xx_mdio_read_nopm [2022-12-14 09:54:43,506 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc95xx_mdio_read_nopm [2022-12-14 09:54:43,506 INFO L130 BoogieDeclarations]: Found specification of procedure smsc95xx_resume [2022-12-14 09:54:43,506 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc95xx_resume [2022-12-14 09:54:43,506 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-14 09:54:43,507 INFO L130 BoogieDeclarations]: Found specification of procedure skb_pull [2022-12-14 09:54:43,507 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_pull [2022-12-14 09:54:43,507 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-12-14 09:54:43,507 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-12-14 09:54:43,507 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_read_cmd [2022-12-14 09:54:43,507 INFO L130 BoogieDeclarations]: Found specification of procedure __smsc95xx_mdio_read [2022-12-14 09:54:43,507 INFO L138 BoogieDeclarations]: Found implementation of procedure __smsc95xx_mdio_read [2022-12-14 09:54:43,507 INFO L130 BoogieDeclarations]: Found specification of procedure smsc95xx_eeprom_confirm_not_busy [2022-12-14 09:54:43,507 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc95xx_eeprom_confirm_not_busy [2022-12-14 09:54:43,507 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-12-14 09:54:43,507 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-12-14 09:54:43,507 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 09:54:43,507 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2022-12-14 09:54:43,507 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2022-12-14 09:54:44,108 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 09:54:44,110 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 09:54:44,339 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-12-14 09:54:57,268 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2022-12-14 09:54:57,315 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 09:54:58,092 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 09:54:58,092 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-14 09:54:58,095 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 09:54:58 BoogieIcfgContainer [2022-12-14 09:54:58,096 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 09:54:58,097 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 09:54:58,097 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 09:54:58,099 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 09:54:58,100 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 09:54:40" (1/3) ... [2022-12-14 09:54:58,100 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5938defd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 09:54:58, skipping insertion in model container [2022-12-14 09:54:58,100 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:54:43" (2/3) ... [2022-12-14 09:54:58,100 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5938defd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 09:54:58, skipping insertion in model container [2022-12-14 09:54:58,100 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 09:54:58" (3/3) ... [2022-12-14 09:54:58,101 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-usb-smsc95xx.cil.i [2022-12-14 09:54:58,116 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 09:54:58,116 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2022-12-14 09:54:58,171 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 09:54:58,175 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;@481904da, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 09:54:58,175 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-12-14 09:54:58,182 INFO L276 IsEmpty]: Start isEmpty. Operand has 1274 states, 809 states have (on average 1.3868974042027193) internal successors, (1122), 815 states have internal predecessors, (1122), 386 states have call successors, (386), 77 states have call predecessors, (386), 76 states have return successors, (379), 379 states have call predecessors, (379), 379 states have call successors, (379) [2022-12-14 09:54:58,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2022-12-14 09:54:58,196 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:54:58,197 INFO L195 NwaCegarLoop]: trace histogram [19, 18, 18, 18, 18, 18, 18, 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] [2022-12-14 09:54:58,197 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-12-14 09:54:58,201 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:54:58,201 INFO L85 PathProgramCache]: Analyzing trace with hash 2108385711, now seen corresponding path program 1 times [2022-12-14 09:54:58,208 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:54:58,208 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [109914373] [2022-12-14 09:54:58,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:54:58,208 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:54:58,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:54:58,867 INFO L134 CoverageAnalysis]: Checked inductivity of 1263 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1263 trivial. 0 not checked. [2022-12-14 09:54:58,867 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:54:58,867 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [109914373] [2022-12-14 09:54:58,868 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [109914373] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:54:58,868 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:54:58,868 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 09:54:58,870 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1876962461] [2022-12-14 09:54:58,870 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:54:58,874 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 09:54:58,874 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:54:58,897 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 09:54:58,897 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 09:54:58,900 INFO L87 Difference]: Start difference. First operand has 1274 states, 809 states have (on average 1.3868974042027193) internal successors, (1122), 815 states have internal predecessors, (1122), 386 states have call successors, (386), 77 states have call predecessors, (386), 76 states have return successors, (379), 379 states have call predecessors, (379), 379 states have call successors, (379) Second operand has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 3 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) [2022-12-14 09:55:00,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:55:00,420 INFO L93 Difference]: Finished difference Result 3667 states and 5494 transitions. [2022-12-14 09:55:00,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 09:55:00,421 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 3 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) Word has length 205 [2022-12-14 09:55:00,422 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:55:00,440 INFO L225 Difference]: With dead ends: 3667 [2022-12-14 09:55:00,440 INFO L226 Difference]: Without dead ends: 2419 [2022-12-14 09:55:00,449 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 09:55:00,451 INFO L413 NwaCegarLoop]: 1938 mSDtfsCounter, 1738 mSDsluCounter, 1569 mSDsCounter, 0 mSdLazyCounter, 568 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1738 SdHoareTripleChecker+Valid, 3507 SdHoareTripleChecker+Invalid, 577 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 568 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-12-14 09:55:00,452 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1738 Valid, 3507 Invalid, 577 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 568 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-12-14 09:55:00,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2419 states. [2022-12-14 09:55:00,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2419 to 2415. [2022-12-14 09:55:00,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2415 states, 1558 states have (on average 1.3844672657252888) internal successors, (2157), 1569 states have internal predecessors, (2157), 706 states have call successors, (706), 149 states have call predecessors, (706), 148 states have return successors, (702), 702 states have call predecessors, (702), 702 states have call successors, (702) [2022-12-14 09:55:00,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2415 states to 2415 states and 3565 transitions. [2022-12-14 09:55:00,642 INFO L78 Accepts]: Start accepts. Automaton has 2415 states and 3565 transitions. Word has length 205 [2022-12-14 09:55:00,643 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:55:00,643 INFO L495 AbstractCegarLoop]: Abstraction has 2415 states and 3565 transitions. [2022-12-14 09:55:00,643 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 3 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) [2022-12-14 09:55:00,644 INFO L276 IsEmpty]: Start isEmpty. Operand 2415 states and 3565 transitions. [2022-12-14 09:55:00,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2022-12-14 09:55:00,651 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:55:00,651 INFO L195 NwaCegarLoop]: trace histogram [19, 18, 18, 18, 18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 09:55:00,651 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 09:55:00,652 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-12-14 09:55:00,652 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:55:00,652 INFO L85 PathProgramCache]: Analyzing trace with hash -1865493566, now seen corresponding path program 1 times [2022-12-14 09:55:00,652 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:55:00,653 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2083485516] [2022-12-14 09:55:00,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:55:00,653 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:55:00,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:55:00,914 INFO L134 CoverageAnalysis]: Checked inductivity of 1260 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1260 trivial. 0 not checked. [2022-12-14 09:55:00,915 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:55:00,915 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2083485516] [2022-12-14 09:55:00,915 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2083485516] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:55:00,915 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:55:00,915 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 09:55:00,915 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [707038487] [2022-12-14 09:55:00,916 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:55:00,917 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 09:55:00,917 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:55:00,918 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 09:55:00,918 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 09:55:00,918 INFO L87 Difference]: Start difference. First operand 2415 states and 3565 transitions. Second operand has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 3 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) [2022-12-14 09:55:02,810 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:55:02,811 INFO L93 Difference]: Finished difference Result 5752 states and 8436 transitions. [2022-12-14 09:55:02,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 09:55:02,811 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 3 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) Word has length 217 [2022-12-14 09:55:02,812 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:55:02,830 INFO L225 Difference]: With dead ends: 5752 [2022-12-14 09:55:02,830 INFO L226 Difference]: Without dead ends: 3374 [2022-12-14 09:55:02,839 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 09:55:02,840 INFO L413 NwaCegarLoop]: 1965 mSDtfsCounter, 1564 mSDsluCounter, 1547 mSDsCounter, 0 mSdLazyCounter, 600 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1564 SdHoareTripleChecker+Valid, 3512 SdHoareTripleChecker+Invalid, 607 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 600 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-12-14 09:55:02,841 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1564 Valid, 3512 Invalid, 607 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 600 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-12-14 09:55:02,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3374 states. [2022-12-14 09:55:03,020 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3374 to 3347. [2022-12-14 09:55:03,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3347 states, 2138 states have (on average 1.3634237605238542) internal successors, (2915), 2157 states have internal predecessors, (2915), 985 states have call successors, (985), 222 states have call predecessors, (985), 221 states have return successors, (981), 976 states have call predecessors, (981), 981 states have call successors, (981) [2022-12-14 09:55:03,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3347 states to 3347 states and 4881 transitions. [2022-12-14 09:55:03,053 INFO L78 Accepts]: Start accepts. Automaton has 3347 states and 4881 transitions. Word has length 217 [2022-12-14 09:55:03,053 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:55:03,053 INFO L495 AbstractCegarLoop]: Abstraction has 3347 states and 4881 transitions. [2022-12-14 09:55:03,054 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 3 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) [2022-12-14 09:55:03,054 INFO L276 IsEmpty]: Start isEmpty. Operand 3347 states and 4881 transitions. [2022-12-14 09:55:03,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 249 [2022-12-14 09:55:03,061 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:55:03,061 INFO L195 NwaCegarLoop]: trace histogram [22, 18, 18, 18, 18, 18, 18, 5, 5, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 09:55:03,062 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-14 09:55:03,062 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-12-14 09:55:03,062 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:55:03,063 INFO L85 PathProgramCache]: Analyzing trace with hash 11403496, now seen corresponding path program 1 times [2022-12-14 09:55:03,063 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:55:03,063 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2018446470] [2022-12-14 09:55:03,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:55:03,063 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:55:03,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:55:03,629 INFO L134 CoverageAnalysis]: Checked inductivity of 1414 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1414 trivial. 0 not checked. [2022-12-14 09:55:03,629 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:55:03,629 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2018446470] [2022-12-14 09:55:03,629 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2018446470] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:55:03,629 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:55:03,629 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 09:55:03,630 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [628029480] [2022-12-14 09:55:03,630 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:55:03,630 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 09:55:03,630 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:55:03,631 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 09:55:03,631 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 09:55:03,631 INFO L87 Difference]: Start difference. First operand 3347 states and 4881 transitions. Second operand has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (31), 3 states have call predecessors, (31), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2022-12-14 09:55:05,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:55:05,296 INFO L93 Difference]: Finished difference Result 3353 states and 4886 transitions. [2022-12-14 09:55:05,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 09:55:05,296 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (31), 3 states have call predecessors, (31), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) Word has length 248 [2022-12-14 09:55:05,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:55:05,308 INFO L225 Difference]: With dead ends: 3353 [2022-12-14 09:55:05,308 INFO L226 Difference]: Without dead ends: 3351 [2022-12-14 09:55:05,310 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-12-14 09:55:05,311 INFO L413 NwaCegarLoop]: 1584 mSDtfsCounter, 1791 mSDsluCounter, 3155 mSDsCounter, 0 mSdLazyCounter, 835 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1802 SdHoareTripleChecker+Valid, 4739 SdHoareTripleChecker+Invalid, 836 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 835 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-12-14 09:55:05,311 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1802 Valid, 4739 Invalid, 836 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 835 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-12-14 09:55:05,314 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3351 states. [2022-12-14 09:55:05,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3351 to 3351. [2022-12-14 09:55:05,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3351 states, 2141 states have (on average 1.3629145259224662) internal successors, (2918), 2160 states have internal predecessors, (2918), 985 states have call successors, (985), 223 states have call predecessors, (985), 222 states have return successors, (981), 976 states have call predecessors, (981), 981 states have call successors, (981) [2022-12-14 09:55:05,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3351 states to 3351 states and 4884 transitions. [2022-12-14 09:55:05,422 INFO L78 Accepts]: Start accepts. Automaton has 3351 states and 4884 transitions. Word has length 248 [2022-12-14 09:55:05,422 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:55:05,422 INFO L495 AbstractCegarLoop]: Abstraction has 3351 states and 4884 transitions. [2022-12-14 09:55:05,422 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (31), 3 states have call predecessors, (31), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2022-12-14 09:55:05,422 INFO L276 IsEmpty]: Start isEmpty. Operand 3351 states and 4884 transitions. [2022-12-14 09:55:05,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 253 [2022-12-14 09:55:05,427 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:55:05,427 INFO L195 NwaCegarLoop]: trace histogram [22, 18, 18, 18, 18, 18, 18, 4, 4, 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] [2022-12-14 09:55:05,427 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-14 09:55:05,427 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-12-14 09:55:05,427 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:55:05,428 INFO L85 PathProgramCache]: Analyzing trace with hash -1279295613, now seen corresponding path program 1 times [2022-12-14 09:55:05,428 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:55:05,428 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1774292689] [2022-12-14 09:55:05,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:55:05,428 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:55:05,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:55:05,898 INFO L134 CoverageAnalysis]: Checked inductivity of 1411 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1409 trivial. 0 not checked. [2022-12-14 09:55:05,898 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:55:05,898 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1774292689] [2022-12-14 09:55:05,898 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1774292689] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:55:05,898 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:55:05,898 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 09:55:05,899 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1457078500] [2022-12-14 09:55:05,899 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:55:05,899 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 09:55:05,899 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:55:05,900 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 09:55:05,900 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 09:55:05,900 INFO L87 Difference]: Start difference. First operand 3351 states and 4884 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, (30), 3 states have call predecessors, (30), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2022-12-14 09:55:07,600 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:55:07,600 INFO L93 Difference]: Finished difference Result 3357 states and 4889 transitions. [2022-12-14 09:55:07,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 09:55:07,601 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, (30), 3 states have call predecessors, (30), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) Word has length 252 [2022-12-14 09:55:07,601 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:55:07,613 INFO L225 Difference]: With dead ends: 3357 [2022-12-14 09:55:07,613 INFO L226 Difference]: Without dead ends: 3355 [2022-12-14 09:55:07,615 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-12-14 09:55:07,615 INFO L413 NwaCegarLoop]: 1587 mSDtfsCounter, 1787 mSDsluCounter, 3155 mSDsCounter, 0 mSdLazyCounter, 835 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1797 SdHoareTripleChecker+Valid, 4742 SdHoareTripleChecker+Invalid, 836 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 835 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-12-14 09:55:07,616 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1797 Valid, 4742 Invalid, 836 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 835 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-12-14 09:55:07,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3355 states. [2022-12-14 09:55:07,752 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3355 to 3355. [2022-12-14 09:55:07,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3355 states, 2144 states have (on average 1.3624067164179106) internal successors, (2921), 2163 states have internal predecessors, (2921), 985 states have call successors, (985), 224 states have call predecessors, (985), 223 states have return successors, (981), 976 states have call predecessors, (981), 981 states have call successors, (981) [2022-12-14 09:55:07,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3355 states to 3355 states and 4887 transitions. [2022-12-14 09:55:07,767 INFO L78 Accepts]: Start accepts. Automaton has 3355 states and 4887 transitions. Word has length 252 [2022-12-14 09:55:07,767 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:55:07,767 INFO L495 AbstractCegarLoop]: Abstraction has 3355 states and 4887 transitions. [2022-12-14 09:55:07,768 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, (30), 3 states have call predecessors, (30), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2022-12-14 09:55:07,768 INFO L276 IsEmpty]: Start isEmpty. Operand 3355 states and 4887 transitions. [2022-12-14 09:55:07,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 259 [2022-12-14 09:55:07,772 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:55:07,772 INFO L195 NwaCegarLoop]: trace histogram [22, 18, 18, 18, 18, 18, 18, 5, 5, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 09:55:07,772 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-14 09:55:07,773 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-12-14 09:55:07,773 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:55:07,773 INFO L85 PathProgramCache]: Analyzing trace with hash 1811219816, now seen corresponding path program 1 times [2022-12-14 09:55:07,773 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:55:07,773 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1020278560] [2022-12-14 09:55:07,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:55:07,773 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:55:07,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:55:08,139 INFO L134 CoverageAnalysis]: Checked inductivity of 1422 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 1418 trivial. 0 not checked. [2022-12-14 09:55:08,139 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:55:08,139 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1020278560] [2022-12-14 09:55:08,139 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1020278560] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:55:08,139 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:55:08,140 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 09:55:08,140 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [480643575] [2022-12-14 09:55:08,140 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:55:08,140 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 09:55:08,140 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:55:08,141 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 09:55:08,141 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 09:55:08,141 INFO L87 Difference]: Start difference. First operand 3355 states and 4887 transitions. Second operand has 5 states, 5 states have (on average 11.2) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (33), 3 states have call predecessors, (33), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2022-12-14 09:55:09,814 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:55:09,814 INFO L93 Difference]: Finished difference Result 3361 states and 4892 transitions. [2022-12-14 09:55:09,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 09:55:09,815 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (33), 3 states have call predecessors, (33), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) Word has length 258 [2022-12-14 09:55:09,816 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:55:09,828 INFO L225 Difference]: With dead ends: 3361 [2022-12-14 09:55:09,829 INFO L226 Difference]: Without dead ends: 3359 [2022-12-14 09:55:09,830 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-12-14 09:55:09,831 INFO L413 NwaCegarLoop]: 1587 mSDtfsCounter, 1786 mSDsluCounter, 3155 mSDsCounter, 0 mSdLazyCounter, 835 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1795 SdHoareTripleChecker+Valid, 4742 SdHoareTripleChecker+Invalid, 836 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 835 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-12-14 09:55:09,831 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1795 Valid, 4742 Invalid, 836 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 835 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-12-14 09:55:09,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3359 states. [2022-12-14 09:55:09,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3359 to 3359. [2022-12-14 09:55:09,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3359 states, 2147 states have (on average 1.3619003260363298) internal successors, (2924), 2166 states have internal predecessors, (2924), 985 states have call successors, (985), 225 states have call predecessors, (985), 224 states have return successors, (981), 976 states have call predecessors, (981), 981 states have call successors, (981) [2022-12-14 09:55:09,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3359 states to 3359 states and 4890 transitions. [2022-12-14 09:55:09,958 INFO L78 Accepts]: Start accepts. Automaton has 3359 states and 4890 transitions. Word has length 258 [2022-12-14 09:55:09,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:55:09,958 INFO L495 AbstractCegarLoop]: Abstraction has 3359 states and 4890 transitions. [2022-12-14 09:55:09,959 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (33), 3 states have call predecessors, (33), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2022-12-14 09:55:09,959 INFO L276 IsEmpty]: Start isEmpty. Operand 3359 states and 4890 transitions. [2022-12-14 09:55:09,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 263 [2022-12-14 09:55:09,964 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:55:09,964 INFO L195 NwaCegarLoop]: trace histogram [22, 18, 18, 18, 18, 18, 18, 4, 4, 4, 3, 3, 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] [2022-12-14 09:55:09,964 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-14 09:55:09,964 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-12-14 09:55:09,964 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:55:09,964 INFO L85 PathProgramCache]: Analyzing trace with hash 91362883, now seen corresponding path program 1 times [2022-12-14 09:55:09,964 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:55:09,964 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1019481342] [2022-12-14 09:55:09,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:55:09,965 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:55:10,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:55:10,309 INFO L134 CoverageAnalysis]: Checked inductivity of 1427 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 1421 trivial. 0 not checked. [2022-12-14 09:55:10,309 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:55:10,310 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1019481342] [2022-12-14 09:55:10,310 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1019481342] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:55:10,310 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:55:10,310 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 09:55:10,310 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1989473078] [2022-12-14 09:55:10,310 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:55:10,311 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 09:55:10,311 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:55:10,311 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 09:55:10,312 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 09:55:10,312 INFO L87 Difference]: Start difference. First operand 3359 states and 4890 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, (32), 3 states have call predecessors, (32), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2022-12-14 09:55:12,187 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:55:12,187 INFO L93 Difference]: Finished difference Result 3365 states and 4895 transitions. [2022-12-14 09:55:12,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 09:55:12,188 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, (32), 3 states have call predecessors, (32), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) Word has length 262 [2022-12-14 09:55:12,188 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:55:12,201 INFO L225 Difference]: With dead ends: 3365 [2022-12-14 09:55:12,201 INFO L226 Difference]: Without dead ends: 3363 [2022-12-14 09:55:12,202 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-12-14 09:55:12,202 INFO L413 NwaCegarLoop]: 1587 mSDtfsCounter, 1787 mSDsluCounter, 3155 mSDsCounter, 0 mSdLazyCounter, 835 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1795 SdHoareTripleChecker+Valid, 4742 SdHoareTripleChecker+Invalid, 836 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 835 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-12-14 09:55:12,202 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1795 Valid, 4742 Invalid, 836 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 835 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-12-14 09:55:12,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3363 states. [2022-12-14 09:55:12,311 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3363 to 3363. [2022-12-14 09:55:12,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3363 states, 2150 states have (on average 1.3613953488372093) internal successors, (2927), 2169 states have internal predecessors, (2927), 985 states have call successors, (985), 226 states have call predecessors, (985), 225 states have return successors, (981), 976 states have call predecessors, (981), 981 states have call successors, (981) [2022-12-14 09:55:12,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3363 states to 3363 states and 4893 transitions. [2022-12-14 09:55:12,325 INFO L78 Accepts]: Start accepts. Automaton has 3363 states and 4893 transitions. Word has length 262 [2022-12-14 09:55:12,325 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:55:12,325 INFO L495 AbstractCegarLoop]: Abstraction has 3363 states and 4893 transitions. [2022-12-14 09:55:12,325 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, (32), 3 states have call predecessors, (32), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2022-12-14 09:55:12,325 INFO L276 IsEmpty]: Start isEmpty. Operand 3363 states and 4893 transitions. [2022-12-14 09:55:12,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 358 [2022-12-14 09:55:12,331 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:55:12,331 INFO L195 NwaCegarLoop]: trace histogram [19, 18, 18, 18, 18, 18, 18, 8, 4, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 09:55:12,332 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-14 09:55:12,332 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-12-14 09:55:12,332 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:55:12,332 INFO L85 PathProgramCache]: Analyzing trace with hash 1815246650, now seen corresponding path program 1 times [2022-12-14 09:55:12,332 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:55:12,332 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1743545247] [2022-12-14 09:55:12,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:55:12,332 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:55:12,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:55:12,712 INFO L134 CoverageAnalysis]: Checked inductivity of 1430 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1430 trivial. 0 not checked. [2022-12-14 09:55:12,712 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:55:12,712 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1743545247] [2022-12-14 09:55:12,712 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1743545247] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:55:12,712 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:55:12,712 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 09:55:12,712 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1898635726] [2022-12-14 09:55:12,712 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:55:12,713 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 09:55:12,713 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:55:12,713 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 09:55:12,724 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 09:55:12,725 INFO L87 Difference]: Start difference. First operand 3363 states and 4893 transitions. Second operand has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 3 states have call successors, (41), 2 states have call predecessors, (41), 1 states have return successors, (37), 3 states have call predecessors, (37), 3 states have call successors, (37) [2022-12-14 09:55:14,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:55:14,289 INFO L93 Difference]: Finished difference Result 8956 states and 13024 transitions. [2022-12-14 09:55:14,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 09:55:14,290 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 3 states have call successors, (41), 2 states have call predecessors, (41), 1 states have return successors, (37), 3 states have call predecessors, (37), 3 states have call successors, (37) Word has length 357 [2022-12-14 09:55:14,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:55:14,306 INFO L225 Difference]: With dead ends: 8956 [2022-12-14 09:55:14,306 INFO L226 Difference]: Without dead ends: 5630 [2022-12-14 09:55:14,314 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 09:55:14,315 INFO L413 NwaCegarLoop]: 1875 mSDtfsCounter, 1279 mSDsluCounter, 1562 mSDsCounter, 0 mSdLazyCounter, 589 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1279 SdHoareTripleChecker+Valid, 3437 SdHoareTripleChecker+Invalid, 605 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 589 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-12-14 09:55:14,315 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1279 Valid, 3437 Invalid, 605 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 589 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-12-14 09:55:14,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5630 states. [2022-12-14 09:55:14,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5630 to 5583. [2022-12-14 09:55:14,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5583 states, 3592 states have (on average 1.361358574610245) internal successors, (4890), 3631 states have internal predecessors, (4890), 1608 states have call successors, (1608), 381 states have call predecessors, (1608), 380 states have return successors, (1604), 1585 states have call predecessors, (1604), 1604 states have call successors, (1604) [2022-12-14 09:55:14,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5583 states to 5583 states and 8102 transitions. [2022-12-14 09:55:14,622 INFO L78 Accepts]: Start accepts. Automaton has 5583 states and 8102 transitions. Word has length 357 [2022-12-14 09:55:14,623 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:55:14,623 INFO L495 AbstractCegarLoop]: Abstraction has 5583 states and 8102 transitions. [2022-12-14 09:55:14,623 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 3 states have call successors, (41), 2 states have call predecessors, (41), 1 states have return successors, (37), 3 states have call predecessors, (37), 3 states have call successors, (37) [2022-12-14 09:55:14,623 INFO L276 IsEmpty]: Start isEmpty. Operand 5583 states and 8102 transitions. [2022-12-14 09:55:14,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 352 [2022-12-14 09:55:14,630 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:55:14,630 INFO L195 NwaCegarLoop]: trace histogram [19, 18, 18, 18, 18, 18, 18, 8, 4, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 09:55:14,630 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-14 09:55:14,630 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-12-14 09:55:14,631 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:55:14,631 INFO L85 PathProgramCache]: Analyzing trace with hash 2097634031, now seen corresponding path program 1 times [2022-12-14 09:55:14,631 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:55:14,631 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [547122546] [2022-12-14 09:55:14,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:55:14,631 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:55:14,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:55:14,890 INFO L134 CoverageAnalysis]: Checked inductivity of 1430 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1430 trivial. 0 not checked. [2022-12-14 09:55:14,890 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:55:14,890 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [547122546] [2022-12-14 09:55:14,890 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [547122546] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:55:14,890 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:55:14,890 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 09:55:14,891 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1562593513] [2022-12-14 09:55:14,891 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:55:14,891 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 09:55:14,891 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:55:14,892 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 09:55:14,892 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 09:55:14,892 INFO L87 Difference]: Start difference. First operand 5583 states and 8102 transitions. Second operand has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 3 states have call successors, (40), 2 states have call predecessors, (40), 1 states have return successors, (37), 3 states have call predecessors, (37), 3 states have call successors, (37) [2022-12-14 09:55:16,560 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:55:16,560 INFO L93 Difference]: Finished difference Result 12725 states and 18458 transitions. [2022-12-14 09:55:16,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 09:55:16,561 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 3 states have call successors, (40), 2 states have call predecessors, (40), 1 states have return successors, (37), 3 states have call predecessors, (37), 3 states have call successors, (37) Word has length 351 [2022-12-14 09:55:16,561 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:55:16,581 INFO L225 Difference]: With dead ends: 12725 [2022-12-14 09:55:16,581 INFO L226 Difference]: Without dead ends: 7179 [2022-12-14 09:55:16,592 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 09:55:16,593 INFO L413 NwaCegarLoop]: 1954 mSDtfsCounter, 1534 mSDsluCounter, 1569 mSDsCounter, 0 mSdLazyCounter, 579 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1534 SdHoareTripleChecker+Valid, 3523 SdHoareTripleChecker+Invalid, 586 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 579 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-12-14 09:55:16,593 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1534 Valid, 3523 Invalid, 586 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 579 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-12-14 09:55:16,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7179 states. [2022-12-14 09:55:16,922 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7179 to 7130. [2022-12-14 09:55:16,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7130 states, 4586 states have (on average 1.3610989969472307) internal successors, (6242), 4651 states have internal predecessors, (6242), 2045 states have call successors, (2045), 497 states have call predecessors, (2045), 496 states have return successors, (2041), 1994 states have call predecessors, (2041), 2041 states have call successors, (2041) [2022-12-14 09:55:16,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7130 states to 7130 states and 10328 transitions. [2022-12-14 09:55:16,970 INFO L78 Accepts]: Start accepts. Automaton has 7130 states and 10328 transitions. Word has length 351 [2022-12-14 09:55:16,971 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:55:16,971 INFO L495 AbstractCegarLoop]: Abstraction has 7130 states and 10328 transitions. [2022-12-14 09:55:16,971 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 3 states have call successors, (40), 2 states have call predecessors, (40), 1 states have return successors, (37), 3 states have call predecessors, (37), 3 states have call successors, (37) [2022-12-14 09:55:16,971 INFO L276 IsEmpty]: Start isEmpty. Operand 7130 states and 10328 transitions. [2022-12-14 09:55:16,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 270 [2022-12-14 09:55:16,974 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:55:16,975 INFO L195 NwaCegarLoop]: trace histogram [22, 18, 18, 18, 18, 18, 18, 5, 5, 5, 4, 4, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 09:55:16,975 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-12-14 09:55:16,975 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-12-14 09:55:16,975 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:55:16,975 INFO L85 PathProgramCache]: Analyzing trace with hash -1851996035, now seen corresponding path program 1 times [2022-12-14 09:55:16,975 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:55:16,975 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [466979016] [2022-12-14 09:55:16,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:55:16,976 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:55:17,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:55:17,290 INFO L134 CoverageAnalysis]: Checked inductivity of 1447 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 1439 trivial. 0 not checked. [2022-12-14 09:55:17,290 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:55:17,290 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [466979016] [2022-12-14 09:55:17,290 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [466979016] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:55:17,290 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:55:17,290 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 09:55:17,290 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [978102908] [2022-12-14 09:55:17,291 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:55:17,291 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 09:55:17,291 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:55:17,291 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 09:55:17,292 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 09:55:17,292 INFO L87 Difference]: Start difference. First operand 7130 states and 10328 transitions. Second operand has 5 states, 5 states have (on average 11.2) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (35), 3 states have call predecessors, (35), 1 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) [2022-12-14 09:55:18,953 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:55:18,953 INFO L93 Difference]: Finished difference Result 7136 states and 10333 transitions. [2022-12-14 09:55:18,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 09:55:18,954 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (35), 3 states have call predecessors, (35), 1 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) Word has length 269 [2022-12-14 09:55:18,954 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:55:18,982 INFO L225 Difference]: With dead ends: 7136 [2022-12-14 09:55:18,982 INFO L226 Difference]: Without dead ends: 7134 [2022-12-14 09:55:18,984 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-12-14 09:55:18,984 INFO L413 NwaCegarLoop]: 1587 mSDtfsCounter, 1786 mSDsluCounter, 3155 mSDsCounter, 0 mSdLazyCounter, 835 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1793 SdHoareTripleChecker+Valid, 4742 SdHoareTripleChecker+Invalid, 836 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 835 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-12-14 09:55:18,984 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1793 Valid, 4742 Invalid, 836 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 835 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-12-14 09:55:18,988 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7134 states. [2022-12-14 09:55:19,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7134 to 7134. [2022-12-14 09:55:19,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7134 states, 4589 states have (on average 1.3608629331008935) internal successors, (6245), 4654 states have internal predecessors, (6245), 2045 states have call successors, (2045), 498 states have call predecessors, (2045), 497 states have return successors, (2041), 1994 states have call predecessors, (2041), 2041 states have call successors, (2041) [2022-12-14 09:55:19,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7134 states to 7134 states and 10331 transitions. [2022-12-14 09:55:19,310 INFO L78 Accepts]: Start accepts. Automaton has 7134 states and 10331 transitions. Word has length 269 [2022-12-14 09:55:19,310 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:55:19,310 INFO L495 AbstractCegarLoop]: Abstraction has 7134 states and 10331 transitions. [2022-12-14 09:55:19,310 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (35), 3 states have call predecessors, (35), 1 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) [2022-12-14 09:55:19,311 INFO L276 IsEmpty]: Start isEmpty. Operand 7134 states and 10331 transitions. [2022-12-14 09:55:19,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 273 [2022-12-14 09:55:19,315 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:55:19,315 INFO L195 NwaCegarLoop]: trace histogram [22, 18, 18, 18, 18, 18, 18, 6, 5, 5, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 09:55:19,316 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-12-14 09:55:19,316 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-12-14 09:55:19,316 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:55:19,316 INFO L85 PathProgramCache]: Analyzing trace with hash 794356995, now seen corresponding path program 1 times [2022-12-14 09:55:19,316 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:55:19,316 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [595265828] [2022-12-14 09:55:19,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:55:19,317 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:55:19,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:55:19,674 INFO L134 CoverageAnalysis]: Checked inductivity of 1459 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 1449 trivial. 0 not checked. [2022-12-14 09:55:19,674 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:55:19,674 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [595265828] [2022-12-14 09:55:19,674 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [595265828] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:55:19,674 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:55:19,675 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 09:55:19,675 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2120526833] [2022-12-14 09:55:19,675 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:55:19,675 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 09:55:19,675 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:55:19,676 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 09:55:19,676 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 09:55:19,676 INFO L87 Difference]: Start difference. First operand 7134 states and 10331 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, (34), 3 states have call predecessors, (34), 1 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2022-12-14 09:55:21,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:55:21,812 INFO L93 Difference]: Finished difference Result 7140 states and 10336 transitions. [2022-12-14 09:55:21,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 09:55:21,813 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, (34), 3 states have call predecessors, (34), 1 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) Word has length 272 [2022-12-14 09:55:21,813 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:55:21,831 INFO L225 Difference]: With dead ends: 7140 [2022-12-14 09:55:21,831 INFO L226 Difference]: Without dead ends: 7138 [2022-12-14 09:55:21,833 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-12-14 09:55:21,834 INFO L413 NwaCegarLoop]: 1587 mSDtfsCounter, 1787 mSDsluCounter, 3155 mSDsCounter, 0 mSdLazyCounter, 835 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1793 SdHoareTripleChecker+Valid, 4742 SdHoareTripleChecker+Invalid, 836 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 835 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-12-14 09:55:21,834 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1793 Valid, 4742 Invalid, 836 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 835 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-12-14 09:55:21,839 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7138 states. [2022-12-14 09:55:22,114 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7138 to 7138. [2022-12-14 09:55:22,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7138 states, 4592 states have (on average 1.3606271777003485) internal successors, (6248), 4657 states have internal predecessors, (6248), 2045 states have call successors, (2045), 499 states have call predecessors, (2045), 498 states have return successors, (2041), 1994 states have call predecessors, (2041), 2041 states have call successors, (2041) [2022-12-14 09:55:22,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7138 states to 7138 states and 10334 transitions. [2022-12-14 09:55:22,139 INFO L78 Accepts]: Start accepts. Automaton has 7138 states and 10334 transitions. Word has length 272 [2022-12-14 09:55:22,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:55:22,139 INFO L495 AbstractCegarLoop]: Abstraction has 7138 states and 10334 transitions. [2022-12-14 09:55:22,140 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, (34), 3 states have call predecessors, (34), 1 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2022-12-14 09:55:22,140 INFO L276 IsEmpty]: Start isEmpty. Operand 7138 states and 10334 transitions. [2022-12-14 09:55:22,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 279 [2022-12-14 09:55:22,144 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:55:22,144 INFO L195 NwaCegarLoop]: trace histogram [22, 18, 18, 18, 18, 18, 18, 7, 6, 6, 5, 5, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 09:55:22,144 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-12-14 09:55:22,144 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-12-14 09:55:22,144 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:55:22,144 INFO L85 PathProgramCache]: Analyzing trace with hash 1790000744, now seen corresponding path program 1 times [2022-12-14 09:55:22,144 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:55:22,145 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1585718648] [2022-12-14 09:55:22,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:55:22,145 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:55:22,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:55:22,471 INFO L134 CoverageAnalysis]: Checked inductivity of 1486 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 1474 trivial. 0 not checked. [2022-12-14 09:55:22,471 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:55:22,472 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1585718648] [2022-12-14 09:55:22,472 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1585718648] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:55:22,472 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:55:22,472 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 09:55:22,472 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [200765221] [2022-12-14 09:55:22,472 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:55:22,473 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 09:55:22,473 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:55:22,473 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 09:55:22,473 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 09:55:22,474 INFO L87 Difference]: Start difference. First operand 7138 states and 10334 transitions. Second operand has 5 states, 5 states have (on average 11.2) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (37), 3 states have call predecessors, (37), 1 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) [2022-12-14 09:55:24,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:55:24,027 INFO L93 Difference]: Finished difference Result 7144 states and 10339 transitions. [2022-12-14 09:55:24,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 09:55:24,028 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (37), 3 states have call predecessors, (37), 1 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) Word has length 278 [2022-12-14 09:55:24,029 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:55:24,045 INFO L225 Difference]: With dead ends: 7144 [2022-12-14 09:55:24,045 INFO L226 Difference]: Without dead ends: 7142 [2022-12-14 09:55:24,048 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-12-14 09:55:24,048 INFO L413 NwaCegarLoop]: 1587 mSDtfsCounter, 1786 mSDsluCounter, 3155 mSDsCounter, 0 mSdLazyCounter, 835 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1791 SdHoareTripleChecker+Valid, 4742 SdHoareTripleChecker+Invalid, 836 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 835 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-12-14 09:55:24,048 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1791 Valid, 4742 Invalid, 836 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 835 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-12-14 09:55:24,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7142 states. [2022-12-14 09:55:24,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7142 to 7142. [2022-12-14 09:55:24,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7142 states, 4595 states have (on average 1.360391730141458) internal successors, (6251), 4660 states have internal predecessors, (6251), 2045 states have call successors, (2045), 500 states have call predecessors, (2045), 499 states have return successors, (2041), 1994 states have call predecessors, (2041), 2041 states have call successors, (2041) [2022-12-14 09:55:24,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7142 states to 7142 states and 10337 transitions. [2022-12-14 09:55:24,419 INFO L78 Accepts]: Start accepts. Automaton has 7142 states and 10337 transitions. Word has length 278 [2022-12-14 09:55:24,419 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:55:24,419 INFO L495 AbstractCegarLoop]: Abstraction has 7142 states and 10337 transitions. [2022-12-14 09:55:24,420 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (37), 3 states have call predecessors, (37), 1 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) [2022-12-14 09:55:24,420 INFO L276 IsEmpty]: Start isEmpty. Operand 7142 states and 10337 transitions. [2022-12-14 09:55:24,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 284 [2022-12-14 09:55:24,427 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:55:24,427 INFO L195 NwaCegarLoop]: trace histogram [22, 18, 18, 18, 18, 18, 18, 8, 7, 7, 5, 5, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 09:55:24,427 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-12-14 09:55:24,427 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-12-14 09:55:24,428 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:55:24,428 INFO L85 PathProgramCache]: Analyzing trace with hash -559334890, now seen corresponding path program 1 times [2022-12-14 09:55:24,428 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:55:24,428 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [802076331] [2022-12-14 09:55:24,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:55:24,428 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:55:24,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:55:24,749 INFO L134 CoverageAnalysis]: Checked inductivity of 1512 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 1498 trivial. 0 not checked. [2022-12-14 09:55:24,749 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:55:24,749 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [802076331] [2022-12-14 09:55:24,749 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [802076331] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:55:24,749 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:55:24,749 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 09:55:24,750 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [794157301] [2022-12-14 09:55:24,750 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:55:24,750 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 09:55:24,750 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:55:24,751 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 09:55:24,751 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 09:55:24,751 INFO L87 Difference]: Start difference. First operand 7142 states and 10337 transitions. Second operand has 5 states, 5 states have (on average 11.2) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (38), 3 states have call predecessors, (38), 1 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) [2022-12-14 09:55:26,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:55:26,323 INFO L93 Difference]: Finished difference Result 7188 states and 10366 transitions. [2022-12-14 09:55:26,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 09:55:26,324 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (38), 3 states have call predecessors, (38), 1 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) Word has length 283 [2022-12-14 09:55:26,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:55:26,339 INFO L225 Difference]: With dead ends: 7188 [2022-12-14 09:55:26,340 INFO L226 Difference]: Without dead ends: 7186 [2022-12-14 09:55:26,342 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-12-14 09:55:26,342 INFO L413 NwaCegarLoop]: 1587 mSDtfsCounter, 1722 mSDsluCounter, 3211 mSDsCounter, 0 mSdLazyCounter, 845 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1726 SdHoareTripleChecker+Valid, 4798 SdHoareTripleChecker+Invalid, 847 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 845 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-12-14 09:55:26,343 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1726 Valid, 4798 Invalid, 847 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 845 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-12-14 09:55:26,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7186 states. [2022-12-14 09:55:26,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7186 to 7186. [2022-12-14 09:55:26,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7186 states, 4622 states have (on average 1.3582864560796193) internal successors, (6278), 4687 states have internal predecessors, (6278), 2045 states have call successors, (2045), 517 states have call predecessors, (2045), 516 states have return successors, (2041), 1994 states have call predecessors, (2041), 2041 states have call successors, (2041) [2022-12-14 09:55:26,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7186 states to 7186 states and 10364 transitions. [2022-12-14 09:55:26,703 INFO L78 Accepts]: Start accepts. Automaton has 7186 states and 10364 transitions. Word has length 283 [2022-12-14 09:55:26,704 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:55:26,704 INFO L495 AbstractCegarLoop]: Abstraction has 7186 states and 10364 transitions. [2022-12-14 09:55:26,704 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (38), 3 states have call predecessors, (38), 1 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) [2022-12-14 09:55:26,704 INFO L276 IsEmpty]: Start isEmpty. Operand 7186 states and 10364 transitions. [2022-12-14 09:55:26,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 278 [2022-12-14 09:55:26,707 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:55:26,708 INFO L195 NwaCegarLoop]: trace histogram [23, 18, 18, 18, 18, 18, 18, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 09:55:26,708 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-12-14 09:55:26,708 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-12-14 09:55:26,708 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:55:26,708 INFO L85 PathProgramCache]: Analyzing trace with hash -514634817, now seen corresponding path program 1 times [2022-12-14 09:55:26,708 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:55:26,708 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1472532887] [2022-12-14 09:55:26,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:55:26,708 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:55:26,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:55:26,855 INFO L134 CoverageAnalysis]: Checked inductivity of 1457 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 1450 trivial. 0 not checked. [2022-12-14 09:55:26,856 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:55:26,856 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1472532887] [2022-12-14 09:55:26,856 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1472532887] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:55:26,856 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:55:26,856 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 09:55:26,856 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1167676094] [2022-12-14 09:55:26,856 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:55:26,857 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 09:55:26,857 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:55:26,858 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 09:55:26,858 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 09:55:26,858 INFO L87 Difference]: Start difference. First operand 7186 states and 10364 transitions. Second operand has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 3 states have call successors, (32), 2 states have call predecessors, (32), 1 states have return successors, (29), 3 states have call predecessors, (29), 3 states have call successors, (29) [2022-12-14 09:55:29,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:55:29,054 INFO L93 Difference]: Finished difference Result 16390 states and 23671 transitions. [2022-12-14 09:55:29,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 09:55:29,055 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 3 states have call successors, (32), 2 states have call predecessors, (32), 1 states have return successors, (29), 3 states have call predecessors, (29), 3 states have call successors, (29) Word has length 277 [2022-12-14 09:55:29,055 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:55:29,076 INFO L225 Difference]: With dead ends: 16390 [2022-12-14 09:55:29,076 INFO L226 Difference]: Without dead ends: 10092 [2022-12-14 09:55:29,090 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 09:55:29,091 INFO L413 NwaCegarLoop]: 2949 mSDtfsCounter, 1618 mSDsluCounter, 1545 mSDsCounter, 0 mSdLazyCounter, 793 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1618 SdHoareTripleChecker+Valid, 4494 SdHoareTripleChecker+Invalid, 797 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 793 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-12-14 09:55:29,091 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1618 Valid, 4494 Invalid, 797 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 793 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-12-14 09:55:29,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10092 states. [2022-12-14 09:55:29,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10092 to 10027. [2022-12-14 09:55:29,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10027 states, 6463 states have (on average 1.3631440507504256) internal successors, (8810), 6562 states have internal predecessors, (8810), 2842 states have call successors, (2842), 720 states have call predecessors, (2842), 719 states have return successors, (2838), 2763 states have call predecessors, (2838), 2838 states have call successors, (2838) [2022-12-14 09:55:29,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10027 states to 10027 states and 14490 transitions. [2022-12-14 09:55:29,602 INFO L78 Accepts]: Start accepts. Automaton has 10027 states and 14490 transitions. Word has length 277 [2022-12-14 09:55:29,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:55:29,602 INFO L495 AbstractCegarLoop]: Abstraction has 10027 states and 14490 transitions. [2022-12-14 09:55:29,602 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 3 states have call successors, (32), 2 states have call predecessors, (32), 1 states have return successors, (29), 3 states have call predecessors, (29), 3 states have call successors, (29) [2022-12-14 09:55:29,602 INFO L276 IsEmpty]: Start isEmpty. Operand 10027 states and 14490 transitions. [2022-12-14 09:55:29,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 375 [2022-12-14 09:55:29,606 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:55:29,607 INFO L195 NwaCegarLoop]: trace histogram [20, 18, 18, 18, 18, 18, 18, 8, 4, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 09:55:29,607 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-12-14 09:55:29,607 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-12-14 09:55:29,607 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:55:29,607 INFO L85 PathProgramCache]: Analyzing trace with hash -1754649654, now seen corresponding path program 1 times [2022-12-14 09:55:29,607 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:55:29,607 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1177595047] [2022-12-14 09:55:29,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:55:29,608 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:55:29,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:55:29,947 INFO L134 CoverageAnalysis]: Checked inductivity of 1474 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 1468 trivial. 0 not checked. [2022-12-14 09:55:29,947 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:55:29,947 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1177595047] [2022-12-14 09:55:29,947 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1177595047] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:55:29,947 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:55:29,948 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 09:55:29,948 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [514496378] [2022-12-14 09:55:29,948 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:55:29,949 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 09:55:29,949 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:55:29,949 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 09:55:29,949 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-12-14 09:55:29,949 INFO L87 Difference]: Start difference. First operand 10027 states and 14490 transitions. Second operand has 5 states, 5 states have (on average 17.8) internal successors, (89), 5 states have internal predecessors, (89), 3 states have call successors, (43), 2 states have call predecessors, (43), 1 states have return successors, (39), 3 states have call predecessors, (39), 3 states have call successors, (39) [2022-12-14 09:55:35,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:55:35,227 INFO L93 Difference]: Finished difference Result 31269 states and 45184 transitions. [2022-12-14 09:55:35,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 09:55:35,227 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.8) internal successors, (89), 5 states have internal predecessors, (89), 3 states have call successors, (43), 2 states have call predecessors, (43), 1 states have return successors, (39), 3 states have call predecessors, (39), 3 states have call successors, (39) Word has length 374 [2022-12-14 09:55:35,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:55:35,276 INFO L225 Difference]: With dead ends: 31269 [2022-12-14 09:55:35,276 INFO L226 Difference]: Without dead ends: 21279 [2022-12-14 09:55:35,298 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-12-14 09:55:35,299 INFO L413 NwaCegarLoop]: 3448 mSDtfsCounter, 3312 mSDsluCounter, 3722 mSDsCounter, 0 mSdLazyCounter, 2771 mSolverCounterSat, 103 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3401 SdHoareTripleChecker+Valid, 7170 SdHoareTripleChecker+Invalid, 2874 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 103 IncrementalHoareTripleChecker+Valid, 2771 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2022-12-14 09:55:35,299 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3401 Valid, 7170 Invalid, 2874 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [103 Valid, 2771 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2022-12-14 09:55:35,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21279 states. [2022-12-14 09:55:36,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21279 to 21111. [2022-12-14 09:55:36,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21111 states, 13661 states have (on average 1.3682746504648269) internal successors, (18692), 13895 states have internal predecessors, (18692), 5930 states have call successors, (5930), 1536 states have call predecessors, (5930), 1517 states have return successors, (5926), 5721 states have call predecessors, (5926), 5926 states have call successors, (5926) [2022-12-14 09:55:36,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21111 states to 21111 states and 30548 transitions. [2022-12-14 09:55:36,367 INFO L78 Accepts]: Start accepts. Automaton has 21111 states and 30548 transitions. Word has length 374 [2022-12-14 09:55:36,368 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:55:36,368 INFO L495 AbstractCegarLoop]: Abstraction has 21111 states and 30548 transitions. [2022-12-14 09:55:36,368 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.8) internal successors, (89), 5 states have internal predecessors, (89), 3 states have call successors, (43), 2 states have call predecessors, (43), 1 states have return successors, (39), 3 states have call predecessors, (39), 3 states have call successors, (39) [2022-12-14 09:55:36,368 INFO L276 IsEmpty]: Start isEmpty. Operand 21111 states and 30548 transitions. [2022-12-14 09:55:36,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 288 [2022-12-14 09:55:36,373 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:55:36,373 INFO L195 NwaCegarLoop]: trace histogram [22, 18, 18, 18, 18, 18, 18, 9, 8, 8, 4, 4, 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] [2022-12-14 09:55:36,373 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-12-14 09:55:36,373 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-12-14 09:55:36,374 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:55:36,374 INFO L85 PathProgramCache]: Analyzing trace with hash 428846427, now seen corresponding path program 1 times [2022-12-14 09:55:36,374 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:55:36,374 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [690370364] [2022-12-14 09:55:36,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:55:36,374 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:55:36,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:55:36,659 INFO L134 CoverageAnalysis]: Checked inductivity of 1537 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 1521 trivial. 0 not checked. [2022-12-14 09:55:36,659 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:55:36,660 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [690370364] [2022-12-14 09:55:36,660 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [690370364] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:55:36,660 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:55:36,660 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 09:55:36,660 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2126950648] [2022-12-14 09:55:36,660 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:55:36,661 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 09:55:36,661 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:55:36,661 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 09:55:36,661 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 09:55:36,661 INFO L87 Difference]: Start difference. First operand 21111 states and 30548 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, (37), 3 states have call predecessors, (37), 1 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) [2022-12-14 09:55:39,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:55:39,292 INFO L93 Difference]: Finished difference Result 21117 states and 30553 transitions. [2022-12-14 09:55:39,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 09:55:39,292 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, (37), 3 states have call predecessors, (37), 1 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) Word has length 287 [2022-12-14 09:55:39,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:55:39,338 INFO L225 Difference]: With dead ends: 21117 [2022-12-14 09:55:39,339 INFO L226 Difference]: Without dead ends: 21115 [2022-12-14 09:55:39,345 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-12-14 09:55:39,345 INFO L413 NwaCegarLoop]: 1587 mSDtfsCounter, 1787 mSDsluCounter, 3155 mSDsCounter, 0 mSdLazyCounter, 835 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1790 SdHoareTripleChecker+Valid, 4742 SdHoareTripleChecker+Invalid, 836 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 835 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-12-14 09:55:39,345 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1790 Valid, 4742 Invalid, 836 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 835 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-12-14 09:55:39,359 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21115 states. [2022-12-14 09:55:40,439 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21115 to 21115. [2022-12-14 09:55:40,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21115 states, 13664 states have (on average 1.368193793911007) internal successors, (18695), 13898 states have internal predecessors, (18695), 5930 states have call successors, (5930), 1537 states have call predecessors, (5930), 1518 states have return successors, (5926), 5721 states have call predecessors, (5926), 5926 states have call successors, (5926) [2022-12-14 09:55:40,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21115 states to 21115 states and 30551 transitions. [2022-12-14 09:55:40,495 INFO L78 Accepts]: Start accepts. Automaton has 21115 states and 30551 transitions. Word has length 287 [2022-12-14 09:55:40,496 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:55:40,496 INFO L495 AbstractCegarLoop]: Abstraction has 21115 states and 30551 transitions. [2022-12-14 09:55:40,496 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, (37), 3 states have call predecessors, (37), 1 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) [2022-12-14 09:55:40,496 INFO L276 IsEmpty]: Start isEmpty. Operand 21115 states and 30551 transitions. [2022-12-14 09:55:40,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 293 [2022-12-14 09:55:40,501 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:55:40,502 INFO L195 NwaCegarLoop]: trace histogram [22, 18, 18, 18, 18, 18, 18, 10, 9, 9, 4, 4, 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] [2022-12-14 09:55:40,502 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-12-14 09:55:40,502 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-12-14 09:55:40,502 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:55:40,502 INFO L85 PathProgramCache]: Analyzing trace with hash 511924867, now seen corresponding path program 1 times [2022-12-14 09:55:40,502 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:55:40,502 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1808773662] [2022-12-14 09:55:40,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:55:40,502 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:55:40,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:55:40,782 INFO L134 CoverageAnalysis]: Checked inductivity of 1571 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 1553 trivial. 0 not checked. [2022-12-14 09:55:40,783 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:55:40,783 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1808773662] [2022-12-14 09:55:40,783 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1808773662] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:55:40,783 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:55:40,783 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 09:55:40,783 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [904360228] [2022-12-14 09:55:40,783 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:55:40,784 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 09:55:40,784 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:55:40,784 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 09:55:40,784 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 09:55:40,785 INFO L87 Difference]: Start difference. First operand 21115 states and 30551 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, (38), 3 states have call predecessors, (38), 1 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) [2022-12-14 09:55:42,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:55:42,994 INFO L93 Difference]: Finished difference Result 21121 states and 30556 transitions. [2022-12-14 09:55:42,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 09:55:42,994 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, (38), 3 states have call predecessors, (38), 1 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) Word has length 292 [2022-12-14 09:55:42,995 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:55:43,041 INFO L225 Difference]: With dead ends: 21121 [2022-12-14 09:55:43,042 INFO L226 Difference]: Without dead ends: 21119 [2022-12-14 09:55:43,050 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-12-14 09:55:43,050 INFO L413 NwaCegarLoop]: 1587 mSDtfsCounter, 1787 mSDsluCounter, 3155 mSDsCounter, 0 mSdLazyCounter, 835 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1789 SdHoareTripleChecker+Valid, 4742 SdHoareTripleChecker+Invalid, 836 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 835 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-12-14 09:55:43,050 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1789 Valid, 4742 Invalid, 836 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 835 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-12-14 09:55:43,066 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21119 states. [2022-12-14 09:55:44,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21119 to 21119. [2022-12-14 09:55:44,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21119 states, 13667 states have (on average 1.3681129728543207) internal successors, (18698), 13901 states have internal predecessors, (18698), 5930 states have call successors, (5930), 1538 states have call predecessors, (5930), 1519 states have return successors, (5926), 5721 states have call predecessors, (5926), 5926 states have call successors, (5926) [2022-12-14 09:55:44,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21119 states to 21119 states and 30554 transitions. [2022-12-14 09:55:44,466 INFO L78 Accepts]: Start accepts. Automaton has 21119 states and 30554 transitions. Word has length 292 [2022-12-14 09:55:44,466 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:55:44,466 INFO L495 AbstractCegarLoop]: Abstraction has 21119 states and 30554 transitions. [2022-12-14 09:55:44,466 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, (38), 3 states have call predecessors, (38), 1 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) [2022-12-14 09:55:44,466 INFO L276 IsEmpty]: Start isEmpty. Operand 21119 states and 30554 transitions. [2022-12-14 09:55:44,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 300 [2022-12-14 09:55:44,473 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:55:44,473 INFO L195 NwaCegarLoop]: trace histogram [22, 18, 18, 18, 18, 18, 18, 11, 10, 10, 5, 5, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 09:55:44,473 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-12-14 09:55:44,473 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-12-14 09:55:44,473 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:55:44,474 INFO L85 PathProgramCache]: Analyzing trace with hash 1690858301, now seen corresponding path program 1 times [2022-12-14 09:55:44,474 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:55:44,474 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [929213152] [2022-12-14 09:55:44,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:55:44,474 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:55:44,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:55:44,805 INFO L134 CoverageAnalysis]: Checked inductivity of 1615 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 1595 trivial. 0 not checked. [2022-12-14 09:55:44,805 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:55:44,805 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [929213152] [2022-12-14 09:55:44,805 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [929213152] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:55:44,806 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:55:44,806 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 09:55:44,806 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [452014401] [2022-12-14 09:55:44,806 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:55:44,806 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 09:55:44,806 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:55:44,807 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 09:55:44,807 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 09:55:44,807 INFO L87 Difference]: Start difference. First operand 21119 states and 30554 transitions. Second operand has 5 states, 5 states have (on average 11.2) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (41), 3 states have call predecessors, (41), 1 states have return successors, (39), 2 states have call predecessors, (39), 2 states have call successors, (39) [2022-12-14 09:55:47,063 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:55:47,063 INFO L93 Difference]: Finished difference Result 21125 states and 30559 transitions. [2022-12-14 09:55:47,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 09:55:47,064 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (41), 3 states have call predecessors, (41), 1 states have return successors, (39), 2 states have call predecessors, (39), 2 states have call successors, (39) Word has length 299 [2022-12-14 09:55:47,064 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:55:47,103 INFO L225 Difference]: With dead ends: 21125 [2022-12-14 09:55:47,103 INFO L226 Difference]: Without dead ends: 21121 [2022-12-14 09:55:47,108 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-12-14 09:55:47,108 INFO L413 NwaCegarLoop]: 1587 mSDtfsCounter, 1786 mSDsluCounter, 3155 mSDsCounter, 0 mSdLazyCounter, 835 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1787 SdHoareTripleChecker+Valid, 4742 SdHoareTripleChecker+Invalid, 836 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 835 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-12-14 09:55:47,109 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1787 Valid, 4742 Invalid, 836 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 835 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-12-14 09:55:47,120 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21121 states. [2022-12-14 09:55:48,507 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21121 to 21121. [2022-12-14 09:55:48,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21121 states, 13669 states have (on average 1.367985953617675) internal successors, (18699), 13902 states have internal predecessors, (18699), 5930 states have call successors, (5930), 1539 states have call predecessors, (5930), 1519 states have return successors, (5926), 5721 states have call predecessors, (5926), 5926 states have call successors, (5926) [2022-12-14 09:55:48,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21121 states to 21121 states and 30555 transitions. [2022-12-14 09:55:48,570 INFO L78 Accepts]: Start accepts. Automaton has 21121 states and 30555 transitions. Word has length 299 [2022-12-14 09:55:48,571 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:55:48,571 INFO L495 AbstractCegarLoop]: Abstraction has 21121 states and 30555 transitions. [2022-12-14 09:55:48,571 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (41), 3 states have call predecessors, (41), 1 states have return successors, (39), 2 states have call predecessors, (39), 2 states have call successors, (39) [2022-12-14 09:55:48,571 INFO L276 IsEmpty]: Start isEmpty. Operand 21121 states and 30555 transitions. [2022-12-14 09:55:48,579 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 304 [2022-12-14 09:55:48,579 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:55:48,579 INFO L195 NwaCegarLoop]: trace histogram [22, 18, 18, 18, 18, 18, 18, 12, 11, 11, 5, 5, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 09:55:48,579 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-12-14 09:55:48,579 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-12-14 09:55:48,579 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:55:48,579 INFO L85 PathProgramCache]: Analyzing trace with hash -577978346, now seen corresponding path program 1 times [2022-12-14 09:55:48,580 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:55:48,580 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [924150034] [2022-12-14 09:55:48,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:55:48,580 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:55:48,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:55:48,843 INFO L134 CoverageAnalysis]: Checked inductivity of 1656 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 1634 trivial. 0 not checked. [2022-12-14 09:55:48,843 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:55:48,843 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [924150034] [2022-12-14 09:55:48,844 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [924150034] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:55:48,844 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:55:48,844 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 09:55:48,844 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2144779084] [2022-12-14 09:55:48,844 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:55:48,844 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 09:55:48,844 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:55:48,844 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 09:55:48,845 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 09:55:48,845 INFO L87 Difference]: Start difference. First operand 21121 states and 30555 transitions. Second operand has 5 states, 5 states have (on average 11.2) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (42), 3 states have call predecessors, (42), 1 states have return successors, (40), 2 states have call predecessors, (40), 2 states have call successors, (40) [2022-12-14 09:55:51,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:55:51,072 INFO L93 Difference]: Finished difference Result 21121 states and 30555 transitions. [2022-12-14 09:55:51,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 09:55:51,072 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (42), 3 states have call predecessors, (42), 1 states have return successors, (40), 2 states have call predecessors, (40), 2 states have call successors, (40) Word has length 303 [2022-12-14 09:55:51,073 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:55:51,121 INFO L225 Difference]: With dead ends: 21121 [2022-12-14 09:55:51,121 INFO L226 Difference]: Without dead ends: 20824 [2022-12-14 09:55:51,131 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-12-14 09:55:51,131 INFO L413 NwaCegarLoop]: 1585 mSDtfsCounter, 1782 mSDsluCounter, 3154 mSDsCounter, 0 mSdLazyCounter, 830 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1782 SdHoareTripleChecker+Valid, 4739 SdHoareTripleChecker+Invalid, 831 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 830 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-12-14 09:55:51,131 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1782 Valid, 4739 Invalid, 831 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 830 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-12-14 09:55:51,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20824 states. [2022-12-14 09:55:52,394 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20824 to 20824. [2022-12-14 09:55:52,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20824 states, 13591 states have (on average 1.363475829593113) internal successors, (18531), 13734 states have internal predecessors, (18531), 5735 states have call successors, (5735), 1496 states have call predecessors, (5735), 1496 states have return successors, (5735), 5635 states have call predecessors, (5735), 5735 states have call successors, (5735) [2022-12-14 09:55:52,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20824 states to 20824 states and 30001 transitions. [2022-12-14 09:55:52,452 INFO L78 Accepts]: Start accepts. Automaton has 20824 states and 30001 transitions. Word has length 303 [2022-12-14 09:55:52,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:55:52,452 INFO L495 AbstractCegarLoop]: Abstraction has 20824 states and 30001 transitions. [2022-12-14 09:55:52,452 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (42), 3 states have call predecessors, (42), 1 states have return successors, (40), 2 states have call predecessors, (40), 2 states have call successors, (40) [2022-12-14 09:55:52,452 INFO L276 IsEmpty]: Start isEmpty. Operand 20824 states and 30001 transitions. [2022-12-14 09:55:52,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 299 [2022-12-14 09:55:52,460 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:55:52,460 INFO L195 NwaCegarLoop]: trace histogram [25, 18, 18, 18, 18, 18, 18, 4, 4, 4, 4, 4, 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] [2022-12-14 09:55:52,460 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-12-14 09:55:52,460 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-12-14 09:55:52,460 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:55:52,460 INFO L85 PathProgramCache]: Analyzing trace with hash 553872597, now seen corresponding path program 1 times [2022-12-14 09:55:52,460 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:55:52,461 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [789488789] [2022-12-14 09:55:52,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:55:52,461 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:55:52,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:55:52,653 INFO L134 CoverageAnalysis]: Checked inductivity of 1565 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 1551 trivial. 0 not checked. [2022-12-14 09:55:52,653 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:55:52,653 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [789488789] [2022-12-14 09:55:52,653 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [789488789] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:55:52,654 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:55:52,654 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 09:55:52,654 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [822259516] [2022-12-14 09:55:52,654 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:55:52,654 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 09:55:52,654 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:55:52,654 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 09:55:52,655 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 09:55:52,655 INFO L87 Difference]: Start difference. First operand 20824 states and 30001 transitions. Second operand has 5 states, 5 states have (on average 17.8) internal successors, (89), 4 states have internal predecessors, (89), 3 states have call successors, (34), 2 states have call predecessors, (34), 2 states have return successors, (31), 4 states have call predecessors, (31), 3 states have call successors, (31) [2022-12-14 09:55:57,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:55:57,325 INFO L93 Difference]: Finished difference Result 47744 states and 68700 transitions. [2022-12-14 09:55:57,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 09:55:57,326 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.8) internal successors, (89), 4 states have internal predecessors, (89), 3 states have call successors, (34), 2 states have call predecessors, (34), 2 states have return successors, (31), 4 states have call predecessors, (31), 3 states have call successors, (31) Word has length 298 [2022-12-14 09:55:57,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:55:57,399 INFO L225 Difference]: With dead ends: 47744 [2022-12-14 09:55:57,399 INFO L226 Difference]: Without dead ends: 27000 [2022-12-14 09:55:57,446 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 09:55:57,446 INFO L413 NwaCegarLoop]: 2856 mSDtfsCounter, 1515 mSDsluCounter, 7211 mSDsCounter, 0 mSdLazyCounter, 1740 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1515 SdHoareTripleChecker+Valid, 10067 SdHoareTripleChecker+Invalid, 1741 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1740 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2022-12-14 09:55:57,447 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1515 Valid, 10067 Invalid, 1741 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1740 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2022-12-14 09:55:57,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27000 states. [2022-12-14 09:55:59,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27000 to 26956. [2022-12-14 09:55:59,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26956 states, 17528 states have (on average 1.357371063441351) internal successors, (23792), 17725 states have internal predecessors, (23792), 7474 states have call successors, (7474), 1942 states have call predecessors, (7474), 1952 states have return successors, (7484), 7344 states have call predecessors, (7484), 7474 states have call successors, (7484) [2022-12-14 09:55:59,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26956 states to 26956 states and 38750 transitions. [2022-12-14 09:55:59,183 INFO L78 Accepts]: Start accepts. Automaton has 26956 states and 38750 transitions. Word has length 298 [2022-12-14 09:55:59,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:55:59,183 INFO L495 AbstractCegarLoop]: Abstraction has 26956 states and 38750 transitions. [2022-12-14 09:55:59,183 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.8) internal successors, (89), 4 states have internal predecessors, (89), 3 states have call successors, (34), 2 states have call predecessors, (34), 2 states have return successors, (31), 4 states have call predecessors, (31), 3 states have call successors, (31) [2022-12-14 09:55:59,183 INFO L276 IsEmpty]: Start isEmpty. Operand 26956 states and 38750 transitions. [2022-12-14 09:55:59,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 300 [2022-12-14 09:55:59,193 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:55:59,193 INFO L195 NwaCegarLoop]: trace histogram [25, 18, 18, 18, 18, 18, 18, 4, 4, 4, 4, 4, 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] [2022-12-14 09:55:59,193 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-12-14 09:55:59,193 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-12-14 09:55:59,193 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:55:59,193 INFO L85 PathProgramCache]: Analyzing trace with hash 1035781295, now seen corresponding path program 1 times [2022-12-14 09:55:59,194 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:55:59,194 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [454553726] [2022-12-14 09:55:59,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:55:59,194 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:55:59,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:55:59,385 INFO L134 CoverageAnalysis]: Checked inductivity of 1565 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 1551 trivial. 0 not checked. [2022-12-14 09:55:59,386 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:55:59,386 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [454553726] [2022-12-14 09:55:59,386 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [454553726] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:55:59,386 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:55:59,386 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 09:55:59,386 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1404529246] [2022-12-14 09:55:59,386 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:55:59,386 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 09:55:59,386 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:55:59,387 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 09:55:59,387 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 09:55:59,387 INFO L87 Difference]: Start difference. First operand 26956 states and 38750 transitions. Second operand has 5 states, 5 states have (on average 18.0) internal successors, (90), 4 states have internal predecessors, (90), 3 states have call successors, (34), 2 states have call predecessors, (34), 2 states have return successors, (31), 4 states have call predecessors, (31), 3 states have call successors, (31) [2022-12-14 09:56:04,360 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:56:04,360 INFO L93 Difference]: Finished difference Result 60028 states and 86238 transitions. [2022-12-14 09:56:04,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 09:56:04,361 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 4 states have internal predecessors, (90), 3 states have call successors, (34), 2 states have call predecessors, (34), 2 states have return successors, (31), 4 states have call predecessors, (31), 3 states have call successors, (31) Word has length 299 [2022-12-14 09:56:04,361 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:56:04,445 INFO L225 Difference]: With dead ends: 60028 [2022-12-14 09:56:04,445 INFO L226 Difference]: Without dead ends: 33152 [2022-12-14 09:56:04,499 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 09:56:04,500 INFO L413 NwaCegarLoop]: 2861 mSDtfsCounter, 1514 mSDsluCounter, 7221 mSDsCounter, 0 mSdLazyCounter, 1745 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1514 SdHoareTripleChecker+Valid, 10082 SdHoareTripleChecker+Invalid, 1747 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1745 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2022-12-14 09:56:04,500 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1514 Valid, 10082 Invalid, 1747 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1745 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2022-12-14 09:56:04,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33152 states. [2022-12-14 09:56:06,507 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33152 to 33108. [2022-12-14 09:56:06,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33108 states, 21485 states have (on average 1.3531766348615313) internal successors, (29073), 21736 states have internal predecessors, (29073), 9213 states have call successors, (9213), 2388 states have call predecessors, (9213), 2408 states have return successors, (9233), 9053 states have call predecessors, (9233), 9213 states have call successors, (9233) [2022-12-14 09:56:06,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33108 states to 33108 states and 47519 transitions. [2022-12-14 09:56:06,608 INFO L78 Accepts]: Start accepts. Automaton has 33108 states and 47519 transitions. Word has length 299 [2022-12-14 09:56:06,608 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:56:06,608 INFO L495 AbstractCegarLoop]: Abstraction has 33108 states and 47519 transitions. [2022-12-14 09:56:06,609 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 4 states have internal predecessors, (90), 3 states have call successors, (34), 2 states have call predecessors, (34), 2 states have return successors, (31), 4 states have call predecessors, (31), 3 states have call successors, (31) [2022-12-14 09:56:06,609 INFO L276 IsEmpty]: Start isEmpty. Operand 33108 states and 47519 transitions. [2022-12-14 09:56:06,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 301 [2022-12-14 09:56:06,618 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:56:06,618 INFO L195 NwaCegarLoop]: trace histogram [25, 18, 18, 18, 18, 18, 18, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 09:56:06,618 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-12-14 09:56:06,618 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-12-14 09:56:06,619 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:56:06,619 INFO L85 PathProgramCache]: Analyzing trace with hash -1434348945, now seen corresponding path program 1 times [2022-12-14 09:56:06,619 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:56:06,619 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [167165838] [2022-12-14 09:56:06,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:56:06,619 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:56:06,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:56:06,811 INFO L134 CoverageAnalysis]: Checked inductivity of 1565 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 1551 trivial. 0 not checked. [2022-12-14 09:56:06,811 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:56:06,811 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [167165838] [2022-12-14 09:56:06,811 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [167165838] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:56:06,811 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:56:06,811 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 09:56:06,812 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1980761538] [2022-12-14 09:56:06,812 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:56:06,812 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 09:56:06,812 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:56:06,812 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 09:56:06,812 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 09:56:06,812 INFO L87 Difference]: Start difference. First operand 33108 states and 47519 transitions. Second operand has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 3 states have call successors, (34), 2 states have call predecessors, (34), 2 states have return successors, (31), 4 states have call predecessors, (31), 3 states have call successors, (31) [2022-12-14 09:56:13,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:56:13,388 INFO L93 Difference]: Finished difference Result 72617 states and 104132 transitions. [2022-12-14 09:56:13,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 09:56:13,388 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 3 states have call successors, (34), 2 states have call predecessors, (34), 2 states have return successors, (31), 4 states have call predecessors, (31), 3 states have call successors, (31) Word has length 300 [2022-12-14 09:56:13,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:56:13,494 INFO L225 Difference]: With dead ends: 72617 [2022-12-14 09:56:13,494 INFO L226 Difference]: Without dead ends: 39589 [2022-12-14 09:56:13,554 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 09:56:13,554 INFO L413 NwaCegarLoop]: 2859 mSDtfsCounter, 1526 mSDsluCounter, 7207 mSDsCounter, 0 mSdLazyCounter, 1755 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1526 SdHoareTripleChecker+Valid, 10066 SdHoareTripleChecker+Invalid, 1761 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 1755 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2022-12-14 09:56:13,554 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1526 Valid, 10066 Invalid, 1761 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 1755 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2022-12-14 09:56:13,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39589 states. [2022-12-14 09:56:15,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39589 to 39545. [2022-12-14 09:56:15,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39545 states, 25614 states have (on average 1.349105957679394) internal successors, (34556), 25919 states have internal predecessors, (34556), 11014 states have call successors, (11014), 2885 states have call predecessors, (11014), 2915 states have return successors, (11044), 10824 states have call predecessors, (11044), 11014 states have call successors, (11044) [2022-12-14 09:56:16,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39545 states to 39545 states and 56614 transitions. [2022-12-14 09:56:16,025 INFO L78 Accepts]: Start accepts. Automaton has 39545 states and 56614 transitions. Word has length 300 [2022-12-14 09:56:16,025 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:56:16,025 INFO L495 AbstractCegarLoop]: Abstraction has 39545 states and 56614 transitions. [2022-12-14 09:56:16,025 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 3 states have call successors, (34), 2 states have call predecessors, (34), 2 states have return successors, (31), 4 states have call predecessors, (31), 3 states have call successors, (31) [2022-12-14 09:56:16,025 INFO L276 IsEmpty]: Start isEmpty. Operand 39545 states and 56614 transitions. [2022-12-14 09:56:16,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 302 [2022-12-14 09:56:16,036 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:56:16,036 INFO L195 NwaCegarLoop]: trace histogram [25, 18, 18, 18, 18, 18, 18, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 09:56:16,037 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-12-14 09:56:16,037 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-12-14 09:56:16,037 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:56:16,037 INFO L85 PathProgramCache]: Analyzing trace with hash -818629503, now seen corresponding path program 1 times [2022-12-14 09:56:16,037 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:56:16,037 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1885141736] [2022-12-14 09:56:16,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:56:16,037 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:56:16,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:56:16,291 INFO L134 CoverageAnalysis]: Checked inductivity of 1565 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 1551 trivial. 0 not checked. [2022-12-14 09:56:16,292 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:56:16,292 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1885141736] [2022-12-14 09:56:16,292 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1885141736] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:56:16,292 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:56:16,292 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 09:56:16,292 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1002952625] [2022-12-14 09:56:16,292 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:56:16,293 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 09:56:16,293 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:56:16,293 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 09:56:16,293 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 09:56:16,294 INFO L87 Difference]: Start difference. First operand 39545 states and 56614 transitions. Second operand has 5 states, 5 states have (on average 18.4) internal successors, (92), 4 states have internal predecessors, (92), 3 states have call successors, (34), 2 states have call predecessors, (34), 2 states have return successors, (31), 4 states have call predecessors, (31), 3 states have call successors, (31) [2022-12-14 09:56:22,975 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:56:22,975 INFO L93 Difference]: Finished difference Result 85246 states and 122046 transitions. [2022-12-14 09:56:22,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 09:56:22,976 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.4) internal successors, (92), 4 states have internal predecessors, (92), 3 states have call successors, (34), 2 states have call predecessors, (34), 2 states have return successors, (31), 4 states have call predecessors, (31), 3 states have call successors, (31) Word has length 301 [2022-12-14 09:56:22,976 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:56:23,091 INFO L225 Difference]: With dead ends: 85246 [2022-12-14 09:56:23,091 INFO L226 Difference]: Without dead ends: 45781 [2022-12-14 09:56:23,158 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 09:56:23,159 INFO L413 NwaCegarLoop]: 2860 mSDtfsCounter, 1517 mSDsluCounter, 7217 mSDsCounter, 0 mSdLazyCounter, 1756 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1517 SdHoareTripleChecker+Valid, 10077 SdHoareTripleChecker+Invalid, 1763 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1756 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2022-12-14 09:56:23,159 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1517 Valid, 10077 Invalid, 1763 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 1756 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2022-12-14 09:56:23,192 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45781 states. [2022-12-14 09:56:25,891 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45781 to 45737. [2022-12-14 09:56:25,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45737 states, 29611 states have (on average 1.3466954847860593) internal successors, (39877), 29970 states have internal predecessors, (39877), 12753 states have call successors, (12753), 3331 states have call predecessors, (12753), 3371 states have return successors, (12793), 12533 states have call predecessors, (12793), 12753 states have call successors, (12793) [2022-12-14 09:56:26,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45737 states to 45737 states and 65423 transitions. [2022-12-14 09:56:26,036 INFO L78 Accepts]: Start accepts. Automaton has 45737 states and 65423 transitions. Word has length 301 [2022-12-14 09:56:26,036 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:56:26,037 INFO L495 AbstractCegarLoop]: Abstraction has 45737 states and 65423 transitions. [2022-12-14 09:56:26,037 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.4) internal successors, (92), 4 states have internal predecessors, (92), 3 states have call successors, (34), 2 states have call predecessors, (34), 2 states have return successors, (31), 4 states have call predecessors, (31), 3 states have call successors, (31) [2022-12-14 09:56:26,037 INFO L276 IsEmpty]: Start isEmpty. Operand 45737 states and 65423 transitions. [2022-12-14 09:56:26,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 303 [2022-12-14 09:56:26,049 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:56:26,049 INFO L195 NwaCegarLoop]: trace histogram [25, 18, 18, 18, 18, 18, 18, 4, 4, 4, 4, 4, 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] [2022-12-14 09:56:26,050 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-12-14 09:56:26,050 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-12-14 09:56:26,050 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:56:26,050 INFO L85 PathProgramCache]: Analyzing trace with hash 1225696305, now seen corresponding path program 1 times [2022-12-14 09:56:26,050 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:56:26,050 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [916517708] [2022-12-14 09:56:26,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:56:26,050 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:56:26,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:56:26,245 INFO L134 CoverageAnalysis]: Checked inductivity of 1565 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 1551 trivial. 0 not checked. [2022-12-14 09:56:26,245 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:56:26,245 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [916517708] [2022-12-14 09:56:26,245 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [916517708] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:56:26,245 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:56:26,245 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 09:56:26,245 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [727353500] [2022-12-14 09:56:26,245 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:56:26,246 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 09:56:26,246 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:56:26,246 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 09:56:26,246 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 09:56:26,246 INFO L87 Difference]: Start difference. First operand 45737 states and 65423 transitions. Second operand has 5 states, 5 states have (on average 18.6) internal successors, (93), 4 states have internal predecessors, (93), 3 states have call successors, (34), 2 states have call predecessors, (34), 2 states have return successors, (31), 4 states have call predecessors, (31), 3 states have call successors, (31) [2022-12-14 09:56:32,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:56:32,627 INFO L93 Difference]: Finished difference Result 97640 states and 139684 transitions. [2022-12-14 09:56:32,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 09:56:32,628 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.6) internal successors, (93), 4 states have internal predecessors, (93), 3 states have call successors, (34), 2 states have call predecessors, (34), 2 states have return successors, (31), 4 states have call predecessors, (31), 3 states have call successors, (31) Word has length 302 [2022-12-14 09:56:32,628 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:56:32,779 INFO L225 Difference]: With dead ends: 97640 [2022-12-14 09:56:32,780 INFO L226 Difference]: Without dead ends: 51983 [2022-12-14 09:56:32,877 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 09:56:32,878 INFO L413 NwaCegarLoop]: 2860 mSDtfsCounter, 1514 mSDsluCounter, 7219 mSDsCounter, 0 mSdLazyCounter, 1760 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1514 SdHoareTripleChecker+Valid, 10079 SdHoareTripleChecker+Invalid, 1767 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1760 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2022-12-14 09:56:32,878 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1514 Valid, 10079 Invalid, 1767 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 1760 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2022-12-14 09:56:32,918 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51983 states. [2022-12-14 09:56:36,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51983 to 51939. [2022-12-14 09:56:36,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51939 states, 33618 states have (on average 1.3447557855910524) internal successors, (45208), 34031 states have internal predecessors, (45208), 14492 states have call successors, (14492), 3777 states have call predecessors, (14492), 3827 states have return successors, (14542), 14242 states have call predecessors, (14542), 14492 states have call successors, (14542) [2022-12-14 09:56:36,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51939 states to 51939 states and 74242 transitions. [2022-12-14 09:56:36,312 INFO L78 Accepts]: Start accepts. Automaton has 51939 states and 74242 transitions. Word has length 302 [2022-12-14 09:56:36,313 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:56:36,313 INFO L495 AbstractCegarLoop]: Abstraction has 51939 states and 74242 transitions. [2022-12-14 09:56:36,313 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.6) internal successors, (93), 4 states have internal predecessors, (93), 3 states have call successors, (34), 2 states have call predecessors, (34), 2 states have return successors, (31), 4 states have call predecessors, (31), 3 states have call successors, (31) [2022-12-14 09:56:36,313 INFO L276 IsEmpty]: Start isEmpty. Operand 51939 states and 74242 transitions. [2022-12-14 09:56:36,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 304 [2022-12-14 09:56:36,326 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:56:36,326 INFO L195 NwaCegarLoop]: trace histogram [25, 18, 18, 18, 18, 18, 18, 4, 4, 4, 4, 4, 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] [2022-12-14 09:56:36,326 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-12-14 09:56:36,326 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-12-14 09:56:36,327 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:56:36,327 INFO L85 PathProgramCache]: Analyzing trace with hash 694714502, now seen corresponding path program 1 times [2022-12-14 09:56:36,327 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:56:36,327 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1684515100] [2022-12-14 09:56:36,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:56:36,327 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:56:36,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:56:36,521 INFO L134 CoverageAnalysis]: Checked inductivity of 1565 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 1551 trivial. 0 not checked. [2022-12-14 09:56:36,521 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:56:36,521 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1684515100] [2022-12-14 09:56:36,521 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1684515100] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:56:36,521 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:56:36,521 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 09:56:36,521 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [591941602] [2022-12-14 09:56:36,522 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:56:36,522 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 09:56:36,522 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:56:36,522 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 09:56:36,522 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 09:56:36,522 INFO L87 Difference]: Start difference. First operand 51939 states and 74242 transitions. Second operand has 5 states, 5 states have (on average 18.8) internal successors, (94), 4 states have internal predecessors, (94), 3 states have call successors, (34), 2 states have call predecessors, (34), 2 states have return successors, (31), 4 states have call predecessors, (31), 3 states have call successors, (31) [2022-12-14 09:56:43,396 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:56:43,396 INFO L93 Difference]: Finished difference Result 110054 states and 157342 transitions. [2022-12-14 09:56:43,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 09:56:43,397 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.8) internal successors, (94), 4 states have internal predecessors, (94), 3 states have call successors, (34), 2 states have call predecessors, (34), 2 states have return successors, (31), 4 states have call predecessors, (31), 3 states have call successors, (31) Word has length 303 [2022-12-14 09:56:43,397 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:56:43,564 INFO L225 Difference]: With dead ends: 110054 [2022-12-14 09:56:43,564 INFO L226 Difference]: Without dead ends: 58195 [2022-12-14 09:56:43,667 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 09:56:43,667 INFO L413 NwaCegarLoop]: 2860 mSDtfsCounter, 1514 mSDsluCounter, 7219 mSDsCounter, 0 mSdLazyCounter, 1763 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1514 SdHoareTripleChecker+Valid, 10079 SdHoareTripleChecker+Invalid, 1771 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 1763 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2022-12-14 09:56:43,667 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1514 Valid, 10079 Invalid, 1771 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 1763 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2022-12-14 09:56:43,711 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58195 states. [2022-12-14 09:56:47,203 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58195 to 58151. [2022-12-14 09:56:47,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58151 states, 37635 states have (on average 1.3431380364022851) internal successors, (50549), 38102 states have internal predecessors, (50549), 16231 states have call successors, (16231), 4223 states have call predecessors, (16231), 4283 states have return successors, (16291), 15951 states have call predecessors, (16291), 16231 states have call successors, (16291) [2022-12-14 09:56:47,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58151 states to 58151 states and 83071 transitions. [2022-12-14 09:56:47,395 INFO L78 Accepts]: Start accepts. Automaton has 58151 states and 83071 transitions. Word has length 303 [2022-12-14 09:56:47,395 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:56:47,395 INFO L495 AbstractCegarLoop]: Abstraction has 58151 states and 83071 transitions. [2022-12-14 09:56:47,396 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.8) internal successors, (94), 4 states have internal predecessors, (94), 3 states have call successors, (34), 2 states have call predecessors, (34), 2 states have return successors, (31), 4 states have call predecessors, (31), 3 states have call successors, (31) [2022-12-14 09:56:47,396 INFO L276 IsEmpty]: Start isEmpty. Operand 58151 states and 83071 transitions. [2022-12-14 09:56:47,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 305 [2022-12-14 09:56:47,412 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:56:47,412 INFO L195 NwaCegarLoop]: trace histogram [25, 18, 18, 18, 18, 18, 18, 4, 4, 4, 4, 4, 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] [2022-12-14 09:56:47,412 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-12-14 09:56:47,412 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-12-14 09:56:47,413 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:56:47,413 INFO L85 PathProgramCache]: Analyzing trace with hash -349842898, now seen corresponding path program 1 times [2022-12-14 09:56:47,413 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:56:47,413 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1195946549] [2022-12-14 09:56:47,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:56:47,413 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:56:47,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:56:47,613 INFO L134 CoverageAnalysis]: Checked inductivity of 1565 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 1551 trivial. 0 not checked. [2022-12-14 09:56:47,614 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:56:47,614 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1195946549] [2022-12-14 09:56:47,614 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1195946549] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:56:47,614 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:56:47,614 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 09:56:47,614 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1565381185] [2022-12-14 09:56:47,614 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:56:47,615 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 09:56:47,615 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:56:47,615 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 09:56:47,615 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 09:56:47,616 INFO L87 Difference]: Start difference. First operand 58151 states and 83071 transitions. Second operand has 5 states, 5 states have (on average 19.0) internal successors, (95), 4 states have internal predecessors, (95), 3 states have call successors, (34), 2 states have call predecessors, (34), 2 states have return successors, (31), 4 states have call predecessors, (31), 3 states have call successors, (31) [2022-12-14 09:56:54,058 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:56:54,058 INFO L93 Difference]: Finished difference Result 122542 states and 175071 transitions. [2022-12-14 09:56:54,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 09:56:54,059 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.0) internal successors, (95), 4 states have internal predecessors, (95), 3 states have call successors, (34), 2 states have call predecessors, (34), 2 states have return successors, (31), 4 states have call predecessors, (31), 3 states have call successors, (31) Word has length 304 [2022-12-14 09:56:54,060 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:56:54,238 INFO L225 Difference]: With dead ends: 122542 [2022-12-14 09:56:54,238 INFO L226 Difference]: Without dead ends: 64471 [2022-12-14 09:56:54,353 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 09:56:54,354 INFO L413 NwaCegarLoop]: 2855 mSDtfsCounter, 1530 mSDsluCounter, 7194 mSDsCounter, 0 mSdLazyCounter, 1756 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1530 SdHoareTripleChecker+Valid, 10049 SdHoareTripleChecker+Invalid, 1766 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 1756 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-12-14 09:56:54,354 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1530 Valid, 10049 Invalid, 1766 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 1756 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2022-12-14 09:56:54,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64471 states. [2022-12-14 09:56:58,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64471 to 64427. [2022-12-14 09:56:58,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64427 states, 41689 states have (on average 1.3415289404878985) internal successors, (55927), 42210 states have internal predecessors, (55927), 17982 states have call successors, (17982), 4684 states have call predecessors, (17982), 4754 states have return successors, (18052), 17672 states have call predecessors, (18052), 17982 states have call successors, (18052) [2022-12-14 09:56:58,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64427 states to 64427 states and 91961 transitions. [2022-12-14 09:56:58,720 INFO L78 Accepts]: Start accepts. Automaton has 64427 states and 91961 transitions. Word has length 304 [2022-12-14 09:56:58,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:56:58,720 INFO L495 AbstractCegarLoop]: Abstraction has 64427 states and 91961 transitions. [2022-12-14 09:56:58,720 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.0) internal successors, (95), 4 states have internal predecessors, (95), 3 states have call successors, (34), 2 states have call predecessors, (34), 2 states have return successors, (31), 4 states have call predecessors, (31), 3 states have call successors, (31) [2022-12-14 09:56:58,720 INFO L276 IsEmpty]: Start isEmpty. Operand 64427 states and 91961 transitions. [2022-12-14 09:56:58,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 306 [2022-12-14 09:56:58,738 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:56:58,738 INFO L195 NwaCegarLoop]: trace histogram [25, 18, 18, 18, 18, 18, 18, 4, 4, 4, 4, 4, 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] [2022-12-14 09:56:58,738 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-12-14 09:56:58,739 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-12-14 09:56:58,739 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:56:58,739 INFO L85 PathProgramCache]: Analyzing trace with hash -1018621709, now seen corresponding path program 1 times [2022-12-14 09:56:58,739 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:56:58,739 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [350875461] [2022-12-14 09:56:58,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:56:58,739 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:56:58,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:56:58,935 INFO L134 CoverageAnalysis]: Checked inductivity of 1565 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 1551 trivial. 0 not checked. [2022-12-14 09:56:58,935 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:56:58,935 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [350875461] [2022-12-14 09:56:58,935 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [350875461] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:56:58,935 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:56:58,935 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 09:56:58,935 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1239462032] [2022-12-14 09:56:58,935 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:56:58,936 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 09:56:58,936 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:56:58,936 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 09:56:58,936 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 09:56:58,936 INFO L87 Difference]: Start difference. First operand 64427 states and 91961 transitions. Second operand has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 states have internal predecessors, (96), 3 states have call successors, (34), 2 states have call predecessors, (34), 2 states have return successors, (31), 4 states have call predecessors, (31), 3 states have call successors, (31) [2022-12-14 09:57:06,794 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:57:06,795 INFO L93 Difference]: Finished difference Result 135050 states and 192820 transitions. [2022-12-14 09:57:06,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 09:57:06,795 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 states have internal predecessors, (96), 3 states have call successors, (34), 2 states have call predecessors, (34), 2 states have return successors, (31), 4 states have call predecessors, (31), 3 states have call successors, (31) Word has length 305 [2022-12-14 09:57:06,795 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:57:06,991 INFO L225 Difference]: With dead ends: 135050 [2022-12-14 09:57:06,991 INFO L226 Difference]: Without dead ends: 70703 [2022-12-14 09:57:07,124 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 09:57:07,125 INFO L413 NwaCegarLoop]: 2860 mSDtfsCounter, 1517 mSDsluCounter, 7217 mSDsCounter, 0 mSdLazyCounter, 1768 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1517 SdHoareTripleChecker+Valid, 10077 SdHoareTripleChecker+Invalid, 1779 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 1768 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2022-12-14 09:57:07,125 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1517 Valid, 10077 Invalid, 1779 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 1768 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2022-12-14 09:57:07,177 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70703 states. [2022-12-14 09:57:11,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70703 to 70659. [2022-12-14 09:57:11,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70659 states, 45726 states have (on average 1.340331540042864) internal successors, (61288), 46301 states have internal predecessors, (61288), 19721 states have call successors, (19721), 5130 states have call predecessors, (19721), 5210 states have return successors, (19801), 19381 states have call predecessors, (19801), 19721 states have call successors, (19801) [2022-12-14 09:57:11,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70659 states to 70659 states and 100810 transitions. [2022-12-14 09:57:11,669 INFO L78 Accepts]: Start accepts. Automaton has 70659 states and 100810 transitions. Word has length 305 [2022-12-14 09:57:11,669 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:57:11,669 INFO L495 AbstractCegarLoop]: Abstraction has 70659 states and 100810 transitions. [2022-12-14 09:57:11,670 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 states have internal predecessors, (96), 3 states have call successors, (34), 2 states have call predecessors, (34), 2 states have return successors, (31), 4 states have call predecessors, (31), 3 states have call successors, (31) [2022-12-14 09:57:11,670 INFO L276 IsEmpty]: Start isEmpty. Operand 70659 states and 100810 transitions. [2022-12-14 09:57:11,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 307 [2022-12-14 09:57:11,688 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:57:11,688 INFO L195 NwaCegarLoop]: trace histogram [25, 18, 18, 18, 18, 18, 18, 4, 4, 4, 4, 4, 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] [2022-12-14 09:57:11,688 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-12-14 09:57:11,688 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-12-14 09:57:11,689 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:57:11,689 INFO L85 PathProgramCache]: Analyzing trace with hash -2070277566, now seen corresponding path program 1 times [2022-12-14 09:57:11,689 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:57:11,689 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2067818960] [2022-12-14 09:57:11,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:57:11,689 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:57:11,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:57:11,904 INFO L134 CoverageAnalysis]: Checked inductivity of 1565 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 1551 trivial. 0 not checked. [2022-12-14 09:57:11,904 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:57:11,905 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2067818960] [2022-12-14 09:57:11,905 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2067818960] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:57:11,905 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:57:11,905 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 09:57:11,905 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1609662286] [2022-12-14 09:57:11,905 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:57:11,906 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 09:57:11,906 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:57:11,906 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 09:57:11,906 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 09:57:11,906 INFO L87 Difference]: Start difference. First operand 70659 states and 100810 transitions. Second operand has 5 states, 5 states have (on average 19.4) internal successors, (97), 4 states have internal predecessors, (97), 3 states have call successors, (34), 2 states have call predecessors, (34), 2 states have return successors, (31), 4 states have call predecessors, (31), 3 states have call successors, (31) [2022-12-14 09:57:19,926 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:57:19,926 INFO L93 Difference]: Finished difference Result 147524 states and 210538 transitions. [2022-12-14 09:57:19,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 09:57:19,927 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.4) internal successors, (97), 4 states have internal predecessors, (97), 3 states have call successors, (34), 2 states have call predecessors, (34), 2 states have return successors, (31), 4 states have call predecessors, (31), 3 states have call successors, (31) Word has length 306 [2022-12-14 09:57:19,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:57:20,130 INFO L225 Difference]: With dead ends: 147524 [2022-12-14 09:57:20,130 INFO L226 Difference]: Without dead ends: 76945 [2022-12-14 09:57:20,251 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 09:57:20,252 INFO L413 NwaCegarLoop]: 2860 mSDtfsCounter, 1514 mSDsluCounter, 7219 mSDsCounter, 0 mSdLazyCounter, 1772 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1514 SdHoareTripleChecker+Valid, 10079 SdHoareTripleChecker+Invalid, 1783 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 1772 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2022-12-14 09:57:20,252 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1514 Valid, 10079 Invalid, 1783 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 1772 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2022-12-14 09:57:20,306 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76945 states. [2022-12-14 09:57:24,836 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76945 to 76901. [2022-12-14 09:57:24,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76901 states, 49773 states have (on average 1.3392602414963937) internal successors, (66659), 50402 states have internal predecessors, (66659), 21460 states have call successors, (21460), 5576 states have call predecessors, (21460), 5666 states have return successors, (21550), 21090 states have call predecessors, (21550), 21460 states have call successors, (21550) [2022-12-14 09:57:25,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76901 states to 76901 states and 109669 transitions. [2022-12-14 09:57:25,109 INFO L78 Accepts]: Start accepts. Automaton has 76901 states and 109669 transitions. Word has length 306 [2022-12-14 09:57:25,109 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:57:25,109 INFO L495 AbstractCegarLoop]: Abstraction has 76901 states and 109669 transitions. [2022-12-14 09:57:25,109 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.4) internal successors, (97), 4 states have internal predecessors, (97), 3 states have call successors, (34), 2 states have call predecessors, (34), 2 states have return successors, (31), 4 states have call predecessors, (31), 3 states have call successors, (31) [2022-12-14 09:57:25,110 INFO L276 IsEmpty]: Start isEmpty. Operand 76901 states and 109669 transitions. [2022-12-14 09:57:25,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 308 [2022-12-14 09:57:25,138 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:57:25,138 INFO L195 NwaCegarLoop]: trace histogram [25, 18, 18, 18, 18, 18, 18, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 09:57:25,138 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-12-14 09:57:25,139 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-12-14 09:57:25,139 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:57:25,139 INFO L85 PathProgramCache]: Analyzing trace with hash -1198360316, now seen corresponding path program 1 times [2022-12-14 09:57:25,139 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:57:25,139 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [933690345] [2022-12-14 09:57:25,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:57:25,140 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:57:25,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:57:25,421 INFO L134 CoverageAnalysis]: Checked inductivity of 1565 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 1551 trivial. 0 not checked. [2022-12-14 09:57:25,421 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:57:25,421 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [933690345] [2022-12-14 09:57:25,421 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [933690345] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:57:25,421 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:57:25,421 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 09:57:25,421 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [939515789] [2022-12-14 09:57:25,421 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:57:25,422 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 09:57:25,422 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:57:25,422 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 09:57:25,423 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 09:57:25,423 INFO L87 Difference]: Start difference. First operand 76901 states and 109669 transitions. Second operand has 5 states, 5 states have (on average 19.6) internal successors, (98), 4 states have internal predecessors, (98), 3 states have call successors, (34), 2 states have call predecessors, (34), 2 states have return successors, (31), 4 states have call predecessors, (31), 3 states have call successors, (31) [2022-12-14 09:57:33,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:57:33,314 INFO L93 Difference]: Finished difference Result 160024 states and 228279 transitions. [2022-12-14 09:57:33,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 09:57:33,315 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.6) internal successors, (98), 4 states have internal predecessors, (98), 3 states have call successors, (34), 2 states have call predecessors, (34), 2 states have return successors, (31), 4 states have call predecessors, (31), 3 states have call successors, (31) Word has length 307 [2022-12-14 09:57:33,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:57:33,546 INFO L225 Difference]: With dead ends: 160024 [2022-12-14 09:57:33,547 INFO L226 Difference]: Without dead ends: 83203 [2022-12-14 09:57:33,694 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 09:57:33,694 INFO L413 NwaCegarLoop]: 2860 mSDtfsCounter, 1517 mSDsluCounter, 7217 mSDsCounter, 0 mSdLazyCounter, 1774 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1517 SdHoareTripleChecker+Valid, 10077 SdHoareTripleChecker+Invalid, 1787 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 1774 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2022-12-14 09:57:33,695 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1517 Valid, 10077 Invalid, 1787 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 1774 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2022-12-14 09:57:33,753 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83203 states. [2022-12-14 09:57:38,908 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83203 to 83159. [2022-12-14 09:57:38,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83159 states, 53833 states have (on average 1.338268348410826) internal successors, (72043), 54516 states have internal predecessors, (72043), 23199 states have call successors, (23199), 6025 states have call predecessors, (23199), 6125 states have return successors, (23299), 22799 states have call predecessors, (23299), 23199 states have call successors, (23299) [2022-12-14 09:57:39,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83159 states to 83159 states and 118541 transitions. [2022-12-14 09:57:39,211 INFO L78 Accepts]: Start accepts. Automaton has 83159 states and 118541 transitions. Word has length 307 [2022-12-14 09:57:39,211 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:57:39,211 INFO L495 AbstractCegarLoop]: Abstraction has 83159 states and 118541 transitions. [2022-12-14 09:57:39,212 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.6) internal successors, (98), 4 states have internal predecessors, (98), 3 states have call successors, (34), 2 states have call predecessors, (34), 2 states have return successors, (31), 4 states have call predecessors, (31), 3 states have call successors, (31) [2022-12-14 09:57:39,212 INFO L276 IsEmpty]: Start isEmpty. Operand 83159 states and 118541 transitions. [2022-12-14 09:57:39,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 309 [2022-12-14 09:57:39,234 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:57:39,234 INFO L195 NwaCegarLoop]: trace histogram [25, 18, 18, 18, 18, 18, 18, 4, 4, 4, 4, 4, 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] [2022-12-14 09:57:39,234 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-12-14 09:57:39,234 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-12-14 09:57:39,235 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:57:39,235 INFO L85 PathProgramCache]: Analyzing trace with hash 1427991691, now seen corresponding path program 1 times [2022-12-14 09:57:39,235 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:57:39,235 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [89411463] [2022-12-14 09:57:39,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:57:39,235 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:57:39,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:57:39,457 INFO L134 CoverageAnalysis]: Checked inductivity of 1565 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 1551 trivial. 0 not checked. [2022-12-14 09:57:39,457 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:57:39,457 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [89411463] [2022-12-14 09:57:39,457 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [89411463] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:57:39,457 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:57:39,458 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 09:57:39,458 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [460769489] [2022-12-14 09:57:39,458 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:57:39,458 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 09:57:39,458 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:57:39,459 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 09:57:39,459 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 09:57:39,459 INFO L87 Difference]: Start difference. First operand 83159 states and 118541 transitions. Second operand has 5 states, 5 states have (on average 19.8) internal successors, (99), 4 states have internal predecessors, (99), 3 states have call successors, (34), 2 states have call predecessors, (34), 2 states have return successors, (31), 4 states have call predecessors, (31), 3 states have call successors, (31) [2022-12-14 09:57:47,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:57:47,296 INFO L93 Difference]: Finished difference Result 172544 states and 246040 transitions. [2022-12-14 09:57:47,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 09:57:47,297 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.8) internal successors, (99), 4 states have internal predecessors, (99), 3 states have call successors, (34), 2 states have call predecessors, (34), 2 states have return successors, (31), 4 states have call predecessors, (31), 3 states have call successors, (31) Word has length 308 [2022-12-14 09:57:47,298 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:57:47,535 INFO L225 Difference]: With dead ends: 172544 [2022-12-14 09:57:47,535 INFO L226 Difference]: Without dead ends: 89465 [2022-12-14 09:57:47,678 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 09:57:47,679 INFO L413 NwaCegarLoop]: 2860 mSDtfsCounter, 1514 mSDsluCounter, 7219 mSDsCounter, 0 mSdLazyCounter, 1778 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1514 SdHoareTripleChecker+Valid, 10079 SdHoareTripleChecker+Invalid, 1791 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 1778 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-12-14 09:57:47,679 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1514 Valid, 10079 Invalid, 1791 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 1778 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2022-12-14 09:57:47,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89465 states. [2022-12-14 09:57:53,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89465 to 89421. [2022-12-14 09:57:53,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 89421 states, 57900 states have (on average 1.3373747841105355) internal successors, (77434), 58637 states have internal predecessors, (77434), 24938 states have call successors, (24938), 6471 states have call predecessors, (24938), 6581 states have return successors, (25048), 24508 states have call predecessors, (25048), 24938 states have call successors, (25048) [2022-12-14 09:57:53,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89421 states to 89421 states and 127420 transitions. [2022-12-14 09:57:53,610 INFO L78 Accepts]: Start accepts. Automaton has 89421 states and 127420 transitions. Word has length 308 [2022-12-14 09:57:53,610 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:57:53,610 INFO L495 AbstractCegarLoop]: Abstraction has 89421 states and 127420 transitions. [2022-12-14 09:57:53,611 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.8) internal successors, (99), 4 states have internal predecessors, (99), 3 states have call successors, (34), 2 states have call predecessors, (34), 2 states have return successors, (31), 4 states have call predecessors, (31), 3 states have call successors, (31) [2022-12-14 09:57:53,611 INFO L276 IsEmpty]: Start isEmpty. Operand 89421 states and 127420 transitions. [2022-12-14 09:57:53,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 310 [2022-12-14 09:57:53,634 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:57:53,634 INFO L195 NwaCegarLoop]: trace histogram [26, 18, 18, 18, 18, 18, 18, 5, 5, 5, 4, 4, 3, 3, 3, 3, 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] [2022-12-14 09:57:53,634 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-12-14 09:57:53,634 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-12-14 09:57:53,635 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:57:53,635 INFO L85 PathProgramCache]: Analyzing trace with hash -774552126, now seen corresponding path program 1 times [2022-12-14 09:57:53,635 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:57:53,635 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [881544494] [2022-12-14 09:57:53,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:57:53,635 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:57:53,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:57:53,778 INFO L134 CoverageAnalysis]: Checked inductivity of 1636 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 1614 trivial. 0 not checked. [2022-12-14 09:57:53,778 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:57:53,778 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [881544494] [2022-12-14 09:57:53,778 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [881544494] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:57:53,778 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:57:53,778 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 09:57:53,778 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1658050690] [2022-12-14 09:57:53,778 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:57:53,779 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 09:57:53,779 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:57:53,779 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 09:57:53,780 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 09:57:53,780 INFO L87 Difference]: Start difference. First operand 89421 states and 127420 transitions. Second operand has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 3 states have call successors, (34), 2 states have call predecessors, (34), 1 states have return successors, (31), 3 states have call predecessors, (31), 3 states have call successors, (31) [2022-12-14 09:58:02,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:58:02,440 INFO L93 Difference]: Finished difference Result 184898 states and 263508 transitions. [2022-12-14 09:58:02,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 09:58:02,441 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 3 states have call successors, (34), 2 states have call predecessors, (34), 1 states have return successors, (31), 3 states have call predecessors, (31), 3 states have call successors, (31) Word has length 309 [2022-12-14 09:58:02,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:58:02,699 INFO L225 Difference]: With dead ends: 184898 [2022-12-14 09:58:02,699 INFO L226 Difference]: Without dead ends: 95557 [2022-12-14 09:58:02,875 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 09:58:02,875 INFO L413 NwaCegarLoop]: 2887 mSDtfsCounter, 1570 mSDsluCounter, 1499 mSDsCounter, 0 mSdLazyCounter, 788 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1570 SdHoareTripleChecker+Valid, 4386 SdHoareTripleChecker+Invalid, 813 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 788 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-12-14 09:58:02,876 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1570 Valid, 4386 Invalid, 813 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 788 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-12-14 09:58:02,944 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95557 states. [2022-12-14 09:58:08,612 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95557 to 95533. [2022-12-14 09:58:08,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 95533 states, 61827 states have (on average 1.3373607000177916) internal successors, (82685), 62618 states have internal predecessors, (82685), 26677 states have call successors, (26677), 6917 states have call predecessors, (26677), 7027 states have return successors, (26787), 26207 states have call predecessors, (26787), 26677 states have call successors, (26787) [2022-12-14 09:58:08,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95533 states to 95533 states and 136149 transitions. [2022-12-14 09:58:08,956 INFO L78 Accepts]: Start accepts. Automaton has 95533 states and 136149 transitions. Word has length 309 [2022-12-14 09:58:08,956 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:58:08,957 INFO L495 AbstractCegarLoop]: Abstraction has 95533 states and 136149 transitions. [2022-12-14 09:58:08,957 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 3 states have call successors, (34), 2 states have call predecessors, (34), 1 states have return successors, (31), 3 states have call predecessors, (31), 3 states have call successors, (31) [2022-12-14 09:58:08,957 INFO L276 IsEmpty]: Start isEmpty. Operand 95533 states and 136149 transitions. [2022-12-14 09:58:08,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 310 [2022-12-14 09:58:08,982 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:58:08,982 INFO L195 NwaCegarLoop]: trace histogram [25, 18, 18, 18, 18, 18, 18, 4, 4, 4, 4, 4, 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] [2022-12-14 09:58:08,982 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-12-14 09:58:08,982 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-12-14 09:58:08,982 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:58:08,983 INFO L85 PathProgramCache]: Analyzing trace with hash -1096235293, now seen corresponding path program 1 times [2022-12-14 09:58:08,983 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:58:08,983 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1762748478] [2022-12-14 09:58:08,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:58:08,983 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:58:09,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:58:09,196 INFO L134 CoverageAnalysis]: Checked inductivity of 1565 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 1551 trivial. 0 not checked. [2022-12-14 09:58:09,196 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:58:09,196 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1762748478] [2022-12-14 09:58:09,197 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1762748478] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:58:09,197 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:58:09,197 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 09:58:09,197 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [129400360] [2022-12-14 09:58:09,197 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:58:09,197 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 09:58:09,198 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:58:09,198 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 09:58:09,198 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 09:58:09,198 INFO L87 Difference]: Start difference. First operand 95533 states and 136149 transitions. Second operand has 5 states, 5 states have (on average 20.0) internal successors, (100), 4 states have internal predecessors, (100), 3 states have call successors, (34), 2 states have call predecessors, (34), 2 states have return successors, (31), 4 states have call predecessors, (31), 3 states have call successors, (31) [2022-12-14 09:58:18,776 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:58:18,776 INFO L93 Difference]: Finished difference Result 197308 states and 281279 transitions. [2022-12-14 09:58:18,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 09:58:18,777 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.0) internal successors, (100), 4 states have internal predecessors, (100), 3 states have call successors, (34), 2 states have call predecessors, (34), 2 states have return successors, (31), 4 states have call predecessors, (31), 3 states have call successors, (31) Word has length 309 [2022-12-14 09:58:18,777 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:58:19,075 INFO L225 Difference]: With dead ends: 197308 [2022-12-14 09:58:19,075 INFO L226 Difference]: Without dead ends: 101855 [2022-12-14 09:58:19,251 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 09:58:19,252 INFO L413 NwaCegarLoop]: 2860 mSDtfsCounter, 1520 mSDsluCounter, 7214 mSDsCounter, 0 mSdLazyCounter, 1777 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1520 SdHoareTripleChecker+Valid, 10074 SdHoareTripleChecker+Invalid, 1792 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 1777 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2022-12-14 09:58:19,252 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1520 Valid, 10074 Invalid, 1792 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 1777 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2022-12-14 09:58:19,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101855 states. [2022-12-14 09:58:25,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101855 to 101811. [2022-12-14 09:58:25,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 101811 states, 65907 states have (on average 1.3365651599981792) internal successors, (88089), 66752 states have internal predecessors, (88089), 28416 states have call successors, (28416), 7366 states have call predecessors, (28416), 7486 states have return successors, (28536), 27916 states have call predecessors, (28536), 28416 states have call successors, (28536) [2022-12-14 09:58:25,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101811 states to 101811 states and 145041 transitions. [2022-12-14 09:58:25,871 INFO L78 Accepts]: Start accepts. Automaton has 101811 states and 145041 transitions. Word has length 309 [2022-12-14 09:58:25,871 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:58:25,871 INFO L495 AbstractCegarLoop]: Abstraction has 101811 states and 145041 transitions. [2022-12-14 09:58:25,871 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.0) internal successors, (100), 4 states have internal predecessors, (100), 3 states have call successors, (34), 2 states have call predecessors, (34), 2 states have return successors, (31), 4 states have call predecessors, (31), 3 states have call successors, (31) [2022-12-14 09:58:25,872 INFO L276 IsEmpty]: Start isEmpty. Operand 101811 states and 145041 transitions. [2022-12-14 09:58:25,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 311 [2022-12-14 09:58:25,899 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:58:25,899 INFO L195 NwaCegarLoop]: trace histogram [25, 18, 18, 18, 18, 18, 18, 4, 4, 4, 4, 4, 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] [2022-12-14 09:58:25,899 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-12-14 09:58:25,899 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-12-14 09:58:25,899 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:58:25,899 INFO L85 PathProgramCache]: Analyzing trace with hash 1065886022, now seen corresponding path program 1 times [2022-12-14 09:58:25,900 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:58:25,900 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1119577183] [2022-12-14 09:58:25,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:58:25,900 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:58:25,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:58:26,105 INFO L134 CoverageAnalysis]: Checked inductivity of 1565 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 1551 trivial. 0 not checked. [2022-12-14 09:58:26,105 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:58:26,106 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1119577183] [2022-12-14 09:58:26,106 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1119577183] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:58:26,106 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:58:26,106 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 09:58:26,106 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [833904189] [2022-12-14 09:58:26,106 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:58:26,107 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 09:58:26,107 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:58:26,107 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 09:58:26,107 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 09:58:26,107 INFO L87 Difference]: Start difference. First operand 101811 states and 145041 transitions. Second operand has 5 states, 5 states have (on average 20.2) internal successors, (101), 4 states have internal predecessors, (101), 3 states have call successors, (34), 2 states have call predecessors, (34), 2 states have return successors, (31), 4 states have call predecessors, (31), 3 states have call successors, (31) [2022-12-14 09:58:36,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:58:36,325 INFO L93 Difference]: Finished difference Result 209868 states and 299080 transitions. [2022-12-14 09:58:36,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 09:58:36,325 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.2) internal successors, (101), 4 states have internal predecessors, (101), 3 states have call successors, (34), 2 states have call predecessors, (34), 2 states have return successors, (31), 4 states have call predecessors, (31), 3 states have call successors, (31) Word has length 310 [2022-12-14 09:58:36,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:58:36,639 INFO L225 Difference]: With dead ends: 209868 [2022-12-14 09:58:36,639 INFO L226 Difference]: Without dead ends: 108137 [2022-12-14 09:58:36,830 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 09:58:36,830 INFO L413 NwaCegarLoop]: 2860 mSDtfsCounter, 1517 mSDsluCounter, 7217 mSDsCounter, 0 mSdLazyCounter, 1783 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1517 SdHoareTripleChecker+Valid, 10077 SdHoareTripleChecker+Invalid, 1799 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 1783 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2022-12-14 09:58:36,830 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1517 Valid, 10077 Invalid, 1799 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 1783 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2022-12-14 09:58:36,907 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108137 states. [2022-12-14 09:58:43,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108137 to 108093. [2022-12-14 09:58:43,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 108093 states, 69994 states have (on average 1.3358287853244564) internal successors, (93500), 70893 states have internal predecessors, (93500), 30155 states have call successors, (30155), 7812 states have call predecessors, (30155), 7942 states have return successors, (30285), 29625 states have call predecessors, (30285), 30155 states have call successors, (30285) [2022-12-14 09:58:43,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108093 states to 108093 states and 153940 transitions. [2022-12-14 09:58:43,785 INFO L78 Accepts]: Start accepts. Automaton has 108093 states and 153940 transitions. Word has length 310 [2022-12-14 09:58:43,785 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:58:43,786 INFO L495 AbstractCegarLoop]: Abstraction has 108093 states and 153940 transitions. [2022-12-14 09:58:43,786 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.2) internal successors, (101), 4 states have internal predecessors, (101), 3 states have call successors, (34), 2 states have call predecessors, (34), 2 states have return successors, (31), 4 states have call predecessors, (31), 3 states have call successors, (31) [2022-12-14 09:58:43,786 INFO L276 IsEmpty]: Start isEmpty. Operand 108093 states and 153940 transitions. [2022-12-14 09:58:43,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 312 [2022-12-14 09:58:43,816 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:58:43,816 INFO L195 NwaCegarLoop]: trace histogram [25, 18, 18, 18, 18, 18, 18, 4, 4, 4, 4, 4, 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] [2022-12-14 09:58:43,817 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-12-14 09:58:43,817 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-12-14 09:58:43,817 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:58:43,817 INFO L85 PathProgramCache]: Analyzing trace with hash -1914243452, now seen corresponding path program 1 times [2022-12-14 09:58:43,817 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:58:43,817 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [621068257] [2022-12-14 09:58:43,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:58:43,818 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:58:43,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:58:44,020 INFO L134 CoverageAnalysis]: Checked inductivity of 1565 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 1551 trivial. 0 not checked. [2022-12-14 09:58:44,020 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:58:44,020 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [621068257] [2022-12-14 09:58:44,020 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [621068257] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:58:44,020 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:58:44,020 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 09:58:44,020 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1168275971] [2022-12-14 09:58:44,020 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:58:44,021 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 09:58:44,021 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:58:44,021 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 09:58:44,021 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 09:58:44,021 INFO L87 Difference]: Start difference. First operand 108093 states and 153940 transitions. Second operand has 5 states, 5 states have (on average 20.4) internal successors, (102), 4 states have internal predecessors, (102), 3 states have call successors, (34), 2 states have call predecessors, (34), 2 states have return successors, (31), 4 states have call predecessors, (31), 3 states have call successors, (31) [2022-12-14 09:58:54,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:58:54,447 INFO L93 Difference]: Finished difference Result 222532 states and 316991 transitions. [2022-12-14 09:58:54,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 09:58:54,448 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.4) internal successors, (102), 4 states have internal predecessors, (102), 3 states have call successors, (34), 2 states have call predecessors, (34), 2 states have return successors, (31), 4 states have call predecessors, (31), 3 states have call successors, (31) Word has length 311 [2022-12-14 09:58:54,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:58:54,785 INFO L225 Difference]: With dead ends: 222532 [2022-12-14 09:58:54,785 INFO L226 Difference]: Without dead ends: 114519 [2022-12-14 09:58:54,992 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 09:58:54,993 INFO L413 NwaCegarLoop]: 2845 mSDtfsCounter, 1517 mSDsluCounter, 7187 mSDsCounter, 0 mSdLazyCounter, 1780 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1517 SdHoareTripleChecker+Valid, 10032 SdHoareTripleChecker+Invalid, 1797 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 1780 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2022-12-14 09:58:54,993 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1517 Valid, 10032 Invalid, 1797 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 1780 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2022-12-14 09:58:55,076 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114519 states. [2022-12-14 09:59:02,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114519 to 114475. [2022-12-14 09:59:02,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 114475 states, 74136 states have (on average 1.3349250026977446) internal successors, (98966), 75089 states have internal predecessors, (98966), 31918 states have call successors, (31918), 8279 states have call predecessors, (31918), 8419 states have return successors, (32058), 31358 states have call predecessors, (32058), 31918 states have call successors, (32058) [2022-12-14 09:59:02,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114475 states to 114475 states and 162942 transitions. [2022-12-14 09:59:02,780 INFO L78 Accepts]: Start accepts. Automaton has 114475 states and 162942 transitions. Word has length 311 [2022-12-14 09:59:02,780 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:59:02,780 INFO L495 AbstractCegarLoop]: Abstraction has 114475 states and 162942 transitions. [2022-12-14 09:59:02,781 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.4) internal successors, (102), 4 states have internal predecessors, (102), 3 states have call successors, (34), 2 states have call predecessors, (34), 2 states have return successors, (31), 4 states have call predecessors, (31), 3 states have call successors, (31) [2022-12-14 09:59:02,781 INFO L276 IsEmpty]: Start isEmpty. Operand 114475 states and 162942 transitions. [2022-12-14 09:59:02,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 313 [2022-12-14 09:59:02,812 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:59:02,813 INFO L195 NwaCegarLoop]: trace histogram [25, 18, 18, 18, 18, 18, 18, 4, 4, 4, 4, 4, 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] [2022-12-14 09:59:02,813 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-12-14 09:59:02,813 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-12-14 09:59:02,813 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:59:02,813 INFO L85 PathProgramCache]: Analyzing trace with hash 1136163802, now seen corresponding path program 1 times [2022-12-14 09:59:02,813 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:59:02,813 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1925956428] [2022-12-14 09:59:02,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:59:02,814 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:59:02,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:59:03,011 INFO L134 CoverageAnalysis]: Checked inductivity of 1565 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 1551 trivial. 0 not checked. [2022-12-14 09:59:03,011 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:59:03,011 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1925956428] [2022-12-14 09:59:03,011 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1925956428] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:59:03,011 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:59:03,012 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 09:59:03,012 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [764165050] [2022-12-14 09:59:03,012 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:59:03,012 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 09:59:03,012 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:59:03,013 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 09:59:03,013 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 09:59:03,013 INFO L87 Difference]: Start difference. First operand 114475 states and 162942 transitions. Second operand has 5 states, 5 states have (on average 20.6) internal successors, (103), 4 states have internal predecessors, (103), 3 states have call successors, (34), 2 states have call predecessors, (34), 2 states have return successors, (31), 4 states have call predecessors, (31), 3 states have call successors, (31) [2022-12-14 09:59:14,520 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:59:14,520 INFO L93 Difference]: Finished difference Result 235216 states and 334922 transitions. [2022-12-14 09:59:14,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 09:59:14,521 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.6) internal successors, (103), 4 states have internal predecessors, (103), 3 states have call successors, (34), 2 states have call predecessors, (34), 2 states have return successors, (31), 4 states have call predecessors, (31), 3 states have call successors, (31) Word has length 312 [2022-12-14 09:59:14,521 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:59:14,880 INFO L225 Difference]: With dead ends: 235216 [2022-12-14 09:59:14,880 INFO L226 Difference]: Without dead ends: 120821 [2022-12-14 09:59:15,102 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 09:59:15,103 INFO L413 NwaCegarLoop]: 2860 mSDtfsCounter, 1514 mSDsluCounter, 7219 mSDsCounter, 0 mSdLazyCounter, 1790 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1514 SdHoareTripleChecker+Valid, 10079 SdHoareTripleChecker+Invalid, 1807 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 1790 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2022-12-14 09:59:15,103 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1514 Valid, 10079 Invalid, 1807 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 1790 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2022-12-14 09:59:15,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120821 states. [2022-12-14 09:59:22,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120821 to 120777. [2022-12-14 09:59:22,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 120777 states, 78243 states have (on average 1.334266324144013) internal successors, (104397), 79250 states have internal predecessors, (104397), 33657 states have call successors, (33657), 8725 states have call predecessors, (33657), 8875 states have return successors, (33807), 33067 states have call predecessors, (33807), 33657 states have call successors, (33807) [2022-12-14 09:59:22,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120777 states to 120777 states and 171861 transitions. [2022-12-14 09:59:22,815 INFO L78 Accepts]: Start accepts. Automaton has 120777 states and 171861 transitions. Word has length 312 [2022-12-14 09:59:22,815 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:59:22,815 INFO L495 AbstractCegarLoop]: Abstraction has 120777 states and 171861 transitions. [2022-12-14 09:59:22,816 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.6) internal successors, (103), 4 states have internal predecessors, (103), 3 states have call successors, (34), 2 states have call predecessors, (34), 2 states have return successors, (31), 4 states have call predecessors, (31), 3 states have call successors, (31) [2022-12-14 09:59:22,816 INFO L276 IsEmpty]: Start isEmpty. Operand 120777 states and 171861 transitions. [2022-12-14 09:59:22,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 314 [2022-12-14 09:59:22,851 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:59:22,851 INFO L195 NwaCegarLoop]: trace histogram [25, 18, 18, 18, 18, 18, 18, 4, 4, 4, 4, 4, 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] [2022-12-14 09:59:22,851 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-12-14 09:59:22,852 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-12-14 09:59:22,852 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:59:22,852 INFO L85 PathProgramCache]: Analyzing trace with hash -980044565, now seen corresponding path program 1 times [2022-12-14 09:59:22,852 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:59:22,852 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [629325586] [2022-12-14 09:59:22,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:59:22,852 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:59:22,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:59:23,248 INFO L134 CoverageAnalysis]: Checked inductivity of 1565 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1565 trivial. 0 not checked. [2022-12-14 09:59:23,249 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:59:23,249 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [629325586] [2022-12-14 09:59:23,249 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [629325586] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:59:23,249 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:59:23,249 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 09:59:23,249 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1623102891] [2022-12-14 09:59:23,249 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:59:23,250 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 09:59:23,250 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:59:23,251 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 09:59:23,251 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 09:59:23,251 INFO L87 Difference]: Start difference. First operand 120777 states and 171861 transitions. Second operand has 5 states, 5 states have (on average 19.6) internal successors, (98), 4 states have internal predecessors, (98), 2 states have call successors, (33), 3 states have call predecessors, (33), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2022-12-14 09:59:31,590 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:59:31,590 INFO L93 Difference]: Finished difference Result 120777 states and 171861 transitions. [2022-12-14 09:59:31,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 09:59:31,591 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.6) internal successors, (98), 4 states have internal predecessors, (98), 2 states have call successors, (33), 3 states have call predecessors, (33), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) Word has length 313 [2022-12-14 09:59:31,591 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:59:31,929 INFO L225 Difference]: With dead ends: 120777 [2022-12-14 09:59:31,929 INFO L226 Difference]: Without dead ends: 120775 [2022-12-14 09:59:31,966 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-12-14 09:59:31,966 INFO L413 NwaCegarLoop]: 1536 mSDtfsCounter, 1654 mSDsluCounter, 3125 mSDsCounter, 0 mSdLazyCounter, 825 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1655 SdHoareTripleChecker+Valid, 4661 SdHoareTripleChecker+Invalid, 826 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 825 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-12-14 09:59:31,966 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1655 Valid, 4661 Invalid, 826 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 825 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-12-14 09:59:32,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120775 states. [2022-12-14 09:59:39,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120775 to 120775. [2022-12-14 09:59:39,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 120775 states, 78242 states have (on average 1.332532399478541) internal successors, (104260), 79248 states have internal predecessors, (104260), 33657 states have call successors, (33657), 8725 states have call predecessors, (33657), 8875 states have return successors, (33807), 33067 states have call predecessors, (33807), 33657 states have call successors, (33807) [2022-12-14 09:59:39,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120775 states to 120775 states and 171724 transitions. [2022-12-14 09:59:39,775 INFO L78 Accepts]: Start accepts. Automaton has 120775 states and 171724 transitions. Word has length 313 [2022-12-14 09:59:39,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:59:39,776 INFO L495 AbstractCegarLoop]: Abstraction has 120775 states and 171724 transitions. [2022-12-14 09:59:39,776 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.6) internal successors, (98), 4 states have internal predecessors, (98), 2 states have call successors, (33), 3 states have call predecessors, (33), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2022-12-14 09:59:39,776 INFO L276 IsEmpty]: Start isEmpty. Operand 120775 states and 171724 transitions. [2022-12-14 09:59:39,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 334 [2022-12-14 09:59:39,955 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:59:39,955 INFO L195 NwaCegarLoop]: trace histogram [25, 18, 18, 18, 18, 18, 18, 5, 5, 4, 4, 4, 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] [2022-12-14 09:59:39,955 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-12-14 09:59:39,956 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-12-14 09:59:39,956 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:59:39,956 INFO L85 PathProgramCache]: Analyzing trace with hash 261839092, now seen corresponding path program 1 times [2022-12-14 09:59:39,956 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:59:39,956 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [791086833] [2022-12-14 09:59:39,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:59:39,957 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:59:40,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:59:40,434 INFO L134 CoverageAnalysis]: Checked inductivity of 1577 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1577 trivial. 0 not checked. [2022-12-14 09:59:40,434 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:59:40,434 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [791086833] [2022-12-14 09:59:40,434 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [791086833] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:59:40,435 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:59:40,435 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 09:59:40,435 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1780490146] [2022-12-14 09:59:40,435 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:59:40,436 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 09:59:40,436 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:59:40,436 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 09:59:40,436 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 09:59:40,437 INFO L87 Difference]: Start difference. First operand 120775 states and 171724 transitions. Second operand has 5 states, 5 states have (on average 21.6) internal successors, (108), 4 states have internal predecessors, (108), 2 states have call successors, (37), 3 states have call predecessors, (37), 2 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) [2022-12-14 09:59:48,889 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:59:48,889 INFO L93 Difference]: Finished difference Result 120775 states and 171724 transitions. [2022-12-14 09:59:48,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 09:59:48,890 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.6) internal successors, (108), 4 states have internal predecessors, (108), 2 states have call successors, (37), 3 states have call predecessors, (37), 2 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) Word has length 333 [2022-12-14 09:59:48,890 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:59:48,897 INFO L225 Difference]: With dead ends: 120775 [2022-12-14 09:59:48,897 INFO L226 Difference]: Without dead ends: 0 [2022-12-14 09:59:49,080 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-12-14 09:59:49,080 INFO L413 NwaCegarLoop]: 1535 mSDtfsCounter, 59 mSDsluCounter, 4551 mSDsCounter, 0 mSdLazyCounter, 1083 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 6086 SdHoareTripleChecker+Invalid, 1083 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1083 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-12-14 09:59:49,080 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [60 Valid, 6086 Invalid, 1083 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1083 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-12-14 09:59:49,081 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-12-14 09:59:49,081 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-12-14 09:59:49,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:59:49,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-12-14 09:59:49,090 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 333 [2022-12-14 09:59:49,090 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:59:49,090 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-12-14 09:59:49,090 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.6) internal successors, (108), 4 states have internal predecessors, (108), 2 states have call successors, (37), 3 states have call predecessors, (37), 2 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) [2022-12-14 09:59:49,091 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-12-14 09:59:49,091 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-12-14 09:59:49,093 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2022-12-14 09:59:49,093 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 3 remaining) [2022-12-14 09:59:49,093 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 3 remaining) [2022-12-14 09:59:49,093 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-12-14 09:59:49,095 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-12-14 10:04:15,406 WARN L233 SmtUtils]: Spent 4.04m on a formula simplification that was a NOOP. DAG size: 424 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or)