./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-cassini.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8393723b 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_932e5c77-573f-452f-bd0b-94b5d2a3982f/bin/utaipan-I9t0OCRTmS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_932e5c77-573f-452f-bd0b-94b5d2a3982f/bin/utaipan-I9t0OCRTmS/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_932e5c77-573f-452f-bd0b-94b5d2a3982f/bin/utaipan-I9t0OCRTmS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_932e5c77-573f-452f-bd0b-94b5d2a3982f/bin/utaipan-I9t0OCRTmS/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-cassini.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_932e5c77-573f-452f-bd0b-94b5d2a3982f/bin/utaipan-I9t0OCRTmS/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_932e5c77-573f-452f-bd0b-94b5d2a3982f/bin/utaipan-I9t0OCRTmS --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 ce7b7e06b36a72b3de911fb70c1b245fd97c856ddcef7fa1f63b6ddc09812498 --- 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-8393723 [2022-11-19 08:03:34,459 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-19 08:03:34,461 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-19 08:03:34,485 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-19 08:03:34,485 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-19 08:03:34,486 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-19 08:03:34,488 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-19 08:03:34,489 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-19 08:03:34,491 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-19 08:03:34,492 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-19 08:03:34,493 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-19 08:03:34,495 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-19 08:03:34,495 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-19 08:03:34,496 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-19 08:03:34,497 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-19 08:03:34,499 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-19 08:03:34,500 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-19 08:03:34,501 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-19 08:03:34,502 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-19 08:03:34,505 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-19 08:03:34,506 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-19 08:03:34,511 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-19 08:03:34,512 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-19 08:03:34,513 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-19 08:03:34,517 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-19 08:03:34,517 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-19 08:03:34,518 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-19 08:03:34,519 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-19 08:03:34,519 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-19 08:03:34,520 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-19 08:03:34,521 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-19 08:03:34,522 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-19 08:03:34,532 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-19 08:03:34,533 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-19 08:03:34,534 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-19 08:03:34,535 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-19 08:03:34,536 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-19 08:03:34,536 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-19 08:03:34,536 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-19 08:03:34,537 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-19 08:03:34,538 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-19 08:03:34,541 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_932e5c77-573f-452f-bd0b-94b5d2a3982f/bin/utaipan-I9t0OCRTmS/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-19 08:03:34,589 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-19 08:03:34,589 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-19 08:03:34,589 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-19 08:03:34,590 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-19 08:03:34,590 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-19 08:03:34,590 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-19 08:03:34,591 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-19 08:03:34,591 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-19 08:03:34,591 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-19 08:03:34,591 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-19 08:03:34,591 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-19 08:03:34,592 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-19 08:03:34,592 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-19 08:03:34,592 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-19 08:03:34,592 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-19 08:03:34,593 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-19 08:03:34,593 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-19 08:03:34,593 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-19 08:03:34,594 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-19 08:03:34,594 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-19 08:03:34,594 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-19 08:03:34,594 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-19 08:03:34,594 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-19 08:03:34,600 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-19 08:03:34,601 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-19 08:03:34,601 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-19 08:03:34,601 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-19 08:03:34,601 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-19 08:03:34,602 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-19 08:03:34,602 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 08:03:34,603 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-19 08:03:34,603 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-19 08:03:34,603 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-19 08:03:34,603 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-19 08:03:34,604 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-19 08:03:34,604 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-19 08:03:34,605 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-19 08:03:34,605 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-19 08:03:34,605 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_932e5c77-573f-452f-bd0b-94b5d2a3982f/bin/utaipan-I9t0OCRTmS/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_932e5c77-573f-452f-bd0b-94b5d2a3982f/bin/utaipan-I9t0OCRTmS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ce7b7e06b36a72b3de911fb70c1b245fd97c856ddcef7fa1f63b6ddc09812498 [2022-11-19 08:03:34,923 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-19 08:03:34,950 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-19 08:03:34,953 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-19 08:03:34,955 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-19 08:03:34,956 INFO L275 PluginConnector]: CDTParser initialized [2022-11-19 08:03:34,957 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_932e5c77-573f-452f-bd0b-94b5d2a3982f/bin/utaipan-I9t0OCRTmS/../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-cassini.cil.i [2022-11-19 08:03:35,042 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_932e5c77-573f-452f-bd0b-94b5d2a3982f/bin/utaipan-I9t0OCRTmS/data/86a93daf4/cf9812cc9d4f485390aef7137fd5b6fb/FLAG39b88ef9f [2022-11-19 08:03:36,177 INFO L306 CDTParser]: Found 1 translation units. [2022-11-19 08:03:36,178 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_932e5c77-573f-452f-bd0b-94b5d2a3982f/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-cassini.cil.i [2022-11-19 08:03:36,273 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_932e5c77-573f-452f-bd0b-94b5d2a3982f/bin/utaipan-I9t0OCRTmS/data/86a93daf4/cf9812cc9d4f485390aef7137fd5b6fb/FLAG39b88ef9f [2022-11-19 08:03:36,289 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_932e5c77-573f-452f-bd0b-94b5d2a3982f/bin/utaipan-I9t0OCRTmS/data/86a93daf4/cf9812cc9d4f485390aef7137fd5b6fb [2022-11-19 08:03:36,292 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-19 08:03:36,295 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-19 08:03:36,297 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-19 08:03:36,297 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-19 08:03:36,301 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-19 08:03:36,302 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:03:36" (1/1) ... [2022-11-19 08:03:36,303 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@241e88d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:03:36, skipping insertion in model container [2022-11-19 08:03:36,303 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:03:36" (1/1) ... [2022-11-19 08:03:36,311 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-19 08:03:36,506 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-19 08:03:42,024 WARN L234 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_932e5c77-573f-452f-bd0b-94b5d2a3982f/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-cassini.cil.i[493165,493178] [2022-11-19 08:03:42,028 WARN L234 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_932e5c77-573f-452f-bd0b-94b5d2a3982f/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-cassini.cil.i[493334,493347] [2022-11-19 08:03:42,029 WARN L234 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_932e5c77-573f-452f-bd0b-94b5d2a3982f/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-cassini.cil.i[493501,493514] [2022-11-19 08:03:42,030 WARN L234 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_932e5c77-573f-452f-bd0b-94b5d2a3982f/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-cassini.cil.i[493669,493682] [2022-11-19 08:03:42,066 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 08:03:42,148 INFO L203 MainTranslator]: Completed pre-run [2022-11-19 08:03:42,733 WARN L234 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_932e5c77-573f-452f-bd0b-94b5d2a3982f/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-cassini.cil.i[493165,493178] [2022-11-19 08:03:42,734 WARN L234 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_932e5c77-573f-452f-bd0b-94b5d2a3982f/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-cassini.cil.i[493334,493347] [2022-11-19 08:03:42,734 WARN L234 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_932e5c77-573f-452f-bd0b-94b5d2a3982f/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-cassini.cil.i[493501,493514] [2022-11-19 08:03:42,734 WARN L234 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_932e5c77-573f-452f-bd0b-94b5d2a3982f/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-cassini.cil.i[493669,493682] [2022-11-19 08:03:42,745 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 08:03:43,119 INFO L208 MainTranslator]: Completed translation [2022-11-19 08:03:43,119 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:03:43 WrapperNode [2022-11-19 08:03:43,119 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-19 08:03:43,120 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-19 08:03:43,121 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-19 08:03:43,121 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-19 08:03:43,129 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:03:43" (1/1) ... [2022-11-19 08:03:43,335 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:03:43" (1/1) ... [2022-11-19 08:03:43,745 INFO L138 Inliner]: procedures = 688, calls = 4282, calls flagged for inlining = 342, calls inlined = 319, statements flattened = 10819 [2022-11-19 08:03:43,746 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-19 08:03:43,747 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-19 08:03:43,747 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-19 08:03:43,747 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-19 08:03:43,757 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:03:43" (1/1) ... [2022-11-19 08:03:43,757 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:03:43" (1/1) ... [2022-11-19 08:03:43,825 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:03:43" (1/1) ... [2022-11-19 08:03:43,826 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:03:43" (1/1) ... [2022-11-19 08:03:44,076 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:03:43" (1/1) ... [2022-11-19 08:03:44,237 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:03:43" (1/1) ... [2022-11-19 08:03:44,291 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:03:43" (1/1) ... [2022-11-19 08:03:44,312 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:03:43" (1/1) ... [2022-11-19 08:03:44,362 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-19 08:03:44,363 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-19 08:03:44,364 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-19 08:03:44,364 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-19 08:03:44,365 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:03:43" (1/1) ... [2022-11-19 08:03:44,371 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 08:03:44,383 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_932e5c77-573f-452f-bd0b-94b5d2a3982f/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 08:03:44,401 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_932e5c77-573f-452f-bd0b-94b5d2a3982f/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-19 08:03:44,427 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_932e5c77-573f-452f-bd0b-94b5d2a3982f/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-19 08:03:44,444 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2022-11-19 08:03:44,444 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2022-11-19 08:03:44,444 INFO L130 BoogieDeclarations]: Found specification of procedure cas_phy_read [2022-11-19 08:03:44,444 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_phy_read [2022-11-19 08:03:44,445 INFO L130 BoogieDeclarations]: Found specification of procedure cas_pcs_link_check [2022-11-19 08:03:44,445 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_pcs_link_check [2022-11-19 08:03:44,445 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2022-11-19 08:03:44,445 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2022-11-19 08:03:44,446 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-11-19 08:03:44,446 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-11-19 08:03:44,446 INFO L130 BoogieDeclarations]: Found specification of procedure lowmem_page_address [2022-11-19 08:03:44,447 INFO L138 BoogieDeclarations]: Found implementation of procedure lowmem_page_address [2022-11-19 08:03:44,447 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_page [2022-11-19 08:03:44,447 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_page [2022-11-19 08:03:44,447 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-19 08:03:44,447 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-19 08:03:44,447 INFO L130 BoogieDeclarations]: Found specification of procedure cas_mii_link_check [2022-11-19 08:03:44,448 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_mii_link_check [2022-11-19 08:03:44,448 INFO L130 BoogieDeclarations]: Found specification of procedure cas_calc_tabort [2022-11-19 08:03:44,448 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_calc_tabort [2022-11-19 08:03:44,448 INFO L130 BoogieDeclarations]: Found specification of procedure pci_read_config_word [2022-11-19 08:03:44,448 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_read_config_word [2022-11-19 08:03:44,448 INFO L130 BoogieDeclarations]: Found specification of procedure pci_dma_sync_single_for_cpu [2022-11-19 08:03:44,449 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_dma_sync_single_for_cpu [2022-11-19 08:03:44,449 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-11-19 08:03:44,449 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-11-19 08:03:44,449 INFO L130 BoogieDeclarations]: Found specification of procedure dma_map_page [2022-11-19 08:03:44,450 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_map_page [2022-11-19 08:03:44,450 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2022-11-19 08:03:44,450 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2022-11-19 08:03:44,450 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_on [2022-11-19 08:03:44,451 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_on [2022-11-19 08:03:44,451 INFO L130 BoogieDeclarations]: Found specification of procedure cas_lock_tx [2022-11-19 08:03:44,451 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_lock_tx [2022-11-19 08:03:44,451 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2022-11-19 08:03:44,451 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2022-11-19 08:03:44,452 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-11-19 08:03:44,452 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-11-19 08:03:44,452 INFO L130 BoogieDeclarations]: Found specification of procedure cas_disable_irq [2022-11-19 08:03:44,452 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_disable_irq [2022-11-19 08:03:44,452 INFO L130 BoogieDeclarations]: Found specification of procedure cas_free_rxds [2022-11-19 08:03:44,453 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_free_rxds [2022-11-19 08:03:44,453 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_page [2022-11-19 08:03:44,454 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_page [2022-11-19 08:03:44,454 INFO L130 BoogieDeclarations]: Found specification of procedure cas_open [2022-11-19 08:03:44,454 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_open [2022-11-19 08:03:44,455 INFO L130 BoogieDeclarations]: Found specification of procedure cas_interrupt [2022-11-19 08:03:44,455 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_interrupt [2022-11-19 08:03:44,455 INFO L130 BoogieDeclarations]: Found specification of procedure cas_tx_tiny_free [2022-11-19 08:03:44,455 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_tx_tiny_free [2022-11-19 08:03:44,455 INFO L130 BoogieDeclarations]: Found specification of procedure PageTail [2022-11-19 08:03:44,455 INFO L138 BoogieDeclarations]: Found implementation of procedure PageTail [2022-11-19 08:03:44,455 INFO L130 BoogieDeclarations]: Found specification of procedure tx_tiny_map [2022-11-19 08:03:44,456 INFO L138 BoogieDeclarations]: Found implementation of procedure tx_tiny_map [2022-11-19 08:03:44,456 INFO L130 BoogieDeclarations]: Found specification of procedure cas_phy_init [2022-11-19 08:03:44,456 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_phy_init [2022-11-19 08:03:44,457 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_pages [2022-11-19 08:03:44,457 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_pages [2022-11-19 08:03:44,457 INFO L130 BoogieDeclarations]: Found specification of procedure skb_frag_size_set [2022-11-19 08:03:44,457 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_frag_size_set [2022-11-19 08:03:44,457 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2022-11-19 08:03:44,457 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2022-11-19 08:03:44,458 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-11-19 08:03:44,458 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-11-19 08:03:44,459 INFO L130 BoogieDeclarations]: Found specification of procedure cas_enable_irq [2022-11-19 08:03:44,459 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_enable_irq [2022-11-19 08:03:44,459 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2022-11-19 08:03:44,459 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2022-11-19 08:03:44,459 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2022-11-19 08:03:44,459 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2022-11-19 08:03:44,460 INFO L130 BoogieDeclarations]: Found specification of procedure cas_page_dequeue [2022-11-19 08:03:44,460 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_page_dequeue [2022-11-19 08:03:44,460 INFO L130 BoogieDeclarations]: Found specification of procedure netif_rx [2022-11-19 08:03:44,460 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_rx [2022-11-19 08:03:44,461 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2022-11-19 08:03:44,461 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2022-11-19 08:03:44,461 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-11-19 08:03:44,461 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-11-19 08:03:44,461 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-11-19 08:03:44,462 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-11-19 08:03:44,462 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_attach [2022-11-19 08:03:44,463 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_attach [2022-11-19 08:03:44,463 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-19 08:03:44,463 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_108 [2022-11-19 08:03:44,463 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_108 [2022-11-19 08:03:44,464 INFO L130 BoogieDeclarations]: Found specification of procedure pci_write_config_word [2022-11-19 08:03:44,464 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_write_config_word [2022-11-19 08:03:44,464 INFO L130 BoogieDeclarations]: Found specification of procedure cas_set_multicast [2022-11-19 08:03:44,464 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_set_multicast [2022-11-19 08:03:44,465 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2022-11-19 08:03:44,465 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2022-11-19 08:03:44,465 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_detach [2022-11-19 08:03:44,465 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_detach [2022-11-19 08:03:44,465 INFO L130 BoogieDeclarations]: Found specification of procedure cas_spare_free [2022-11-19 08:03:44,465 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_spare_free [2022-11-19 08:03:44,466 INFO L130 BoogieDeclarations]: Found specification of procedure cas_tx_timeout [2022-11-19 08:03:44,466 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_tx_timeout [2022-11-19 08:03:44,466 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-11-19 08:03:44,466 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-11-19 08:03:44,467 INFO L130 BoogieDeclarations]: Found specification of procedure cas_read_pcs_link_mode [2022-11-19 08:03:44,467 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_read_pcs_link_mode [2022-11-19 08:03:44,467 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2022-11-19 08:03:44,467 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2022-11-19 08:03:44,468 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-11-19 08:03:44,469 INFO L130 BoogieDeclarations]: Found specification of procedure cas_close [2022-11-19 08:03:44,471 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_close [2022-11-19 08:03:44,473 INFO L130 BoogieDeclarations]: Found specification of procedure cas_page_swap [2022-11-19 08:03:44,473 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_page_swap [2022-11-19 08:03:44,473 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-11-19 08:03:44,474 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-11-19 08:03:44,474 INFO L130 BoogieDeclarations]: Found specification of procedure cas_netpoll [2022-11-19 08:03:44,475 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_netpoll [2022-11-19 08:03:44,476 INFO L130 BoogieDeclarations]: Found specification of procedure cas_hard_reset [2022-11-19 08:03:44,476 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_hard_reset [2022-11-19 08:03:44,481 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2022-11-19 08:03:44,482 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2022-11-19 08:03:44,482 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-19 08:03:44,482 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-11-19 08:03:44,482 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-11-19 08:03:44,482 INFO L130 BoogieDeclarations]: Found specification of procedure cas_rxc_init [2022-11-19 08:03:44,482 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_rxc_init [2022-11-19 08:03:44,483 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-19 08:03:44,483 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-19 08:03:44,483 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-19 08:03:44,483 INFO L130 BoogieDeclarations]: Found specification of procedure cas_clear_mac_err [2022-11-19 08:03:44,483 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_clear_mac_err [2022-11-19 08:03:44,483 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2022-11-19 08:03:44,484 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2022-11-19 08:03:44,484 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2022-11-19 08:03:44,484 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2022-11-19 08:03:44,484 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2022-11-19 08:03:44,484 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2022-11-19 08:03:44,484 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_dma_mask [2022-11-19 08:03:44,484 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_dma_mask [2022-11-19 08:03:44,484 INFO L130 BoogieDeclarations]: Found specification of procedure cas_remove_one [2022-11-19 08:03:44,485 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_remove_one [2022-11-19 08:03:44,485 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_NOT_ARG_SIGN [2022-11-19 08:03:44,485 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_NOT_ARG_SIGN [2022-11-19 08:03:44,485 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2022-11-19 08:03:44,485 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2022-11-19 08:03:44,485 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2022-11-19 08:03:44,485 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2022-11-19 08:03:44,486 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2022-11-19 08:03:44,486 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2022-11-19 08:03:44,486 INFO L130 BoogieDeclarations]: Found specification of procedure __skb_dequeue [2022-11-19 08:03:44,486 INFO L138 BoogieDeclarations]: Found implementation of procedure __skb_dequeue [2022-11-19 08:03:44,486 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-19 08:03:44,486 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2022-11-19 08:03:44,486 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2022-11-19 08:03:44,487 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2022-11-19 08:03:44,487 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2022-11-19 08:03:44,487 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer [2022-11-19 08:03:44,487 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer [2022-11-19 08:03:44,487 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-19 08:03:44,487 INFO L130 BoogieDeclarations]: Found specification of procedure list_splice_init [2022-11-19 08:03:44,487 INFO L138 BoogieDeclarations]: Found implementation of procedure list_splice_init [2022-11-19 08:03:44,488 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-11-19 08:03:44,488 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-11-19 08:03:44,488 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-11-19 08:03:44,488 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-11-19 08:03:44,488 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-19 08:03:44,488 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-11-19 08:03:44,488 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-11-19 08:03:44,489 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-11-19 08:03:44,489 INFO L130 BoogieDeclarations]: Found specification of procedure cas_set_link_modes [2022-11-19 08:03:44,489 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_set_link_modes [2022-11-19 08:03:44,489 INFO L130 BoogieDeclarations]: Found specification of procedure cas_read_mii_link_mode [2022-11-19 08:03:44,489 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_read_mii_link_mode [2022-11-19 08:03:44,489 INFO L130 BoogieDeclarations]: Found specification of procedure __list_splice [2022-11-19 08:03:44,489 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_splice [2022-11-19 08:03:44,490 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2022-11-19 08:03:44,490 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2022-11-19 08:03:44,490 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2022-11-19 08:03:44,490 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2022-11-19 08:03:44,490 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2022-11-19 08:03:44,490 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2022-11-19 08:03:44,490 INFO L130 BoogieDeclarations]: Found specification of procedure kmap_atomic [2022-11-19 08:03:44,491 INFO L138 BoogieDeclarations]: Found implementation of procedure kmap_atomic [2022-11-19 08:03:44,491 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2022-11-19 08:03:44,491 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2022-11-19 08:03:44,491 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-11-19 08:03:44,491 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-11-19 08:03:44,491 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2022-11-19 08:03:44,491 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2022-11-19 08:03:44,492 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2022-11-19 08:03:44,492 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2022-11-19 08:03:44,492 INFO L130 BoogieDeclarations]: Found specification of procedure csum_unfold [2022-11-19 08:03:44,492 INFO L138 BoogieDeclarations]: Found implementation of procedure csum_unfold [2022-11-19 08:03:44,492 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2022-11-19 08:03:44,492 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2022-11-19 08:03:44,492 INFO L130 BoogieDeclarations]: Found specification of procedure cas_entropy_gather [2022-11-19 08:03:44,493 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_entropy_gather [2022-11-19 08:03:44,493 INFO L130 BoogieDeclarations]: Found specification of procedure cas_resume [2022-11-19 08:03:44,493 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_resume [2022-11-19 08:03:44,493 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-19 08:03:44,493 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-19 08:03:44,493 INFO L130 BoogieDeclarations]: Found specification of procedure cas_page_alloc [2022-11-19 08:03:44,493 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_page_alloc [2022-11-19 08:03:44,493 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-19 08:03:44,494 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-19 08:03:44,494 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-19 08:03:44,494 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-19 08:03:44,494 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-11-19 08:03:44,494 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-11-19 08:03:44,494 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2022-11-19 08:03:44,494 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2022-11-19 08:03:44,495 INFO L130 BoogieDeclarations]: Found specification of procedure cas_mif_poll [2022-11-19 08:03:44,495 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_mif_poll [2022-11-19 08:03:44,495 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2022-11-19 08:03:44,495 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2022-11-19 08:03:44,495 INFO L130 BoogieDeclarations]: Found specification of procedure cas_unlock_tx [2022-11-19 08:03:44,495 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_unlock_tx [2022-11-19 08:03:44,495 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-11-19 08:03:44,496 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-11-19 08:03:44,496 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_133 [2022-11-19 08:03:44,496 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_133 [2022-11-19 08:03:44,496 INFO L130 BoogieDeclarations]: Found specification of procedure list_splice [2022-11-19 08:03:44,496 INFO L138 BoogieDeclarations]: Found implementation of procedure list_splice [2022-11-19 08:03:44,496 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_135 [2022-11-19 08:03:44,496 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_135 [2022-11-19 08:03:44,497 INFO L130 BoogieDeclarations]: Found specification of procedure ethtool_cmd_speed_set [2022-11-19 08:03:44,497 INFO L138 BoogieDeclarations]: Found implementation of procedure ethtool_cmd_speed_set [2022-11-19 08:03:44,497 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_sub [2022-11-19 08:03:44,497 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_sub [2022-11-19 08:03:44,497 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2022-11-19 08:03:44,497 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2022-11-19 08:03:44,497 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-19 08:03:44,498 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-19 08:03:44,498 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2022-11-19 08:03:44,498 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2022-11-19 08:03:44,498 INFO L130 BoogieDeclarations]: Found specification of procedure pci_alloc_consistent [2022-11-19 08:03:44,499 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_alloc_consistent [2022-11-19 08:03:44,503 INFO L130 BoogieDeclarations]: Found specification of procedure tx_tiny_buf [2022-11-19 08:03:44,503 INFO L138 BoogieDeclarations]: Found implementation of procedure tx_tiny_buf [2022-11-19 08:03:44,503 INFO L130 BoogieDeclarations]: Found specification of procedure cas_mac_reset [2022-11-19 08:03:44,503 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_mac_reset [2022-11-19 08:03:44,504 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_lock_of_cas [2022-11-19 08:03:44,504 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_lock_of_cas [2022-11-19 08:03:44,504 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-19 08:03:44,504 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-11-19 08:03:44,504 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-11-19 08:03:44,505 INFO L130 BoogieDeclarations]: Found specification of procedure __skb_frag_set_page [2022-11-19 08:03:44,506 INFO L138 BoogieDeclarations]: Found implementation of procedure __skb_frag_set_page [2022-11-19 08:03:44,506 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-19 08:03:44,506 INFO L130 BoogieDeclarations]: Found specification of procedure cas_get_regs_len [2022-11-19 08:03:44,507 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_get_regs_len [2022-11-19 08:03:44,507 INFO L130 BoogieDeclarations]: Found specification of procedure cas_reset [2022-11-19 08:03:44,507 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_reset [2022-11-19 08:03:44,507 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_NOT_ARG_SIGN [2022-11-19 08:03:44,507 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_NOT_ARG_SIGN [2022-11-19 08:03:44,507 INFO L130 BoogieDeclarations]: Found specification of procedure __free_pages [2022-11-19 08:03:44,507 INFO L138 BoogieDeclarations]: Found implementation of procedure __free_pages [2022-11-19 08:03:44,508 INFO L130 BoogieDeclarations]: Found specification of procedure cas_post_page [2022-11-19 08:03:44,508 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_post_page [2022-11-19 08:03:44,508 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-19 08:03:44,508 INFO L130 BoogieDeclarations]: Found specification of procedure pci_write_config_byte [2022-11-19 08:03:44,508 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_write_config_byte [2022-11-19 08:03:44,508 INFO L130 BoogieDeclarations]: Found specification of procedure cas_nway_reset [2022-11-19 08:03:44,508 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_nway_reset [2022-11-19 08:03:44,508 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2022-11-19 08:03:44,509 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2022-11-19 08:03:44,509 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-11-19 08:03:44,509 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-11-19 08:03:44,509 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-11-19 08:03:44,509 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-11-19 08:03:44,509 INFO L130 BoogieDeclarations]: Found specification of procedure cas_setup_multicast [2022-11-19 08:03:44,509 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_setup_multicast [2022-11-19 08:03:44,509 INFO L130 BoogieDeclarations]: Found specification of procedure cas_phy_powerdown [2022-11-19 08:03:44,510 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_phy_powerdown [2022-11-19 08:03:44,510 INFO L130 BoogieDeclarations]: Found specification of procedure cas_post_rxds_ringN [2022-11-19 08:03:44,510 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_post_rxds_ringN [2022-11-19 08:03:44,510 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_irq [2022-11-19 08:03:44,510 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_irq [2022-11-19 08:03:44,510 INFO L130 BoogieDeclarations]: Found specification of procedure cas_vpd_match [2022-11-19 08:03:44,510 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_vpd_match [2022-11-19 08:03:44,510 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_83 [2022-11-19 08:03:44,511 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_83 [2022-11-19 08:03:44,511 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_81 [2022-11-19 08:03:44,511 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_81 [2022-11-19 08:03:44,511 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2022-11-19 08:03:44,511 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2022-11-19 08:03:44,511 INFO L130 BoogieDeclarations]: Found specification of procedure cpumask_weight [2022-11-19 08:03:44,511 INFO L138 BoogieDeclarations]: Found implementation of procedure cpumask_weight [2022-11-19 08:03:44,512 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2022-11-19 08:03:44,512 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2022-11-19 08:03:44,512 INFO L130 BoogieDeclarations]: Found specification of procedure page_count [2022-11-19 08:03:44,512 INFO L138 BoogieDeclarations]: Found implementation of procedure page_count [2022-11-19 08:03:44,512 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-11-19 08:03:44,512 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-11-19 08:03:44,512 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_77 [2022-11-19 08:03:44,512 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_77 [2022-11-19 08:03:44,513 INFO L130 BoogieDeclarations]: Found specification of procedure cas_shutdown [2022-11-19 08:03:44,513 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_shutdown [2022-11-19 08:03:44,513 INFO L130 BoogieDeclarations]: Found specification of procedure cas_begin_auto_negotiation [2022-11-19 08:03:44,513 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_begin_auto_negotiation [2022-11-19 08:03:44,513 INFO L130 BoogieDeclarations]: Found specification of procedure skb_frag_page [2022-11-19 08:03:44,513 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_frag_page [2022-11-19 08:03:44,513 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-11-19 08:03:44,513 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-11-19 08:03:44,514 INFO L130 BoogieDeclarations]: Found specification of procedure cas_write_txd [2022-11-19 08:03:44,514 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_write_txd [2022-11-19 08:03:44,514 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-19 08:03:44,514 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-19 08:03:44,514 INFO L130 BoogieDeclarations]: Found specification of procedure __skb_frag_ref [2022-11-19 08:03:44,514 INFO L138 BoogieDeclarations]: Found implementation of procedure __skb_frag_ref [2022-11-19 08:03:44,514 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-19 08:03:44,514 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-19 08:03:44,515 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-19 08:03:44,515 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_82 [2022-11-19 08:03:44,515 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_82 [2022-11-19 08:03:44,515 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_84 [2022-11-19 08:03:44,515 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_84 [2022-11-19 08:03:44,515 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_79 [2022-11-19 08:03:44,515 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_79 [2022-11-19 08:03:44,516 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_inc [2022-11-19 08:03:44,516 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_inc [2022-11-19 08:03:44,516 INFO L130 BoogieDeclarations]: Found specification of procedure cas_init_hw [2022-11-19 08:03:44,516 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_init_hw [2022-11-19 08:03:44,516 INFO L130 BoogieDeclarations]: Found specification of procedure cas_clean_rings [2022-11-19 08:03:44,516 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_clean_rings [2022-11-19 08:03:44,516 INFO L130 BoogieDeclarations]: Found specification of procedure cas_page_free [2022-11-19 08:03:44,516 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_page_free [2022-11-19 08:03:44,517 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec [2022-11-19 08:03:44,517 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec [2022-11-19 08:03:44,517 INFO L130 BoogieDeclarations]: Found specification of procedure cas_phy_write [2022-11-19 08:03:44,517 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_phy_write [2022-11-19 08:03:44,517 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-11-19 08:03:44,517 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-11-19 08:03:44,517 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_work [2022-11-19 08:03:44,517 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_work [2022-11-19 08:03:44,518 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iounmap [2022-11-19 08:03:44,518 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iounmap [2022-11-19 08:03:44,518 INFO L130 BoogieDeclarations]: Found specification of procedure cas_spare_recover [2022-11-19 08:03:44,518 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_spare_recover [2022-11-19 08:03:44,518 INFO L130 BoogieDeclarations]: Found specification of procedure ethtool_cmd_speed [2022-11-19 08:03:44,518 INFO L138 BoogieDeclarations]: Found implementation of procedure ethtool_cmd_speed [2022-11-19 08:03:44,518 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2022-11-19 08:03:44,519 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2022-11-19 08:03:44,519 INFO L130 BoogieDeclarations]: Found specification of procedure cas_get_stats [2022-11-19 08:03:44,519 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_get_stats [2022-11-19 08:03:44,519 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2022-11-19 08:03:44,519 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2022-11-19 08:03:44,519 INFO L130 BoogieDeclarations]: Found specification of procedure __kunmap_atomic [2022-11-19 08:03:44,519 INFO L138 BoogieDeclarations]: Found implementation of procedure __kunmap_atomic [2022-11-19 08:03:44,519 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-19 08:03:44,520 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2022-11-19 08:03:44,520 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2022-11-19 08:03:44,520 INFO L130 BoogieDeclarations]: Found specification of procedure pci_dma_sync_single_for_device [2022-11-19 08:03:44,520 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_dma_sync_single_for_device [2022-11-19 08:03:44,520 INFO L130 BoogieDeclarations]: Found specification of procedure readb [2022-11-19 08:03:44,520 INFO L138 BoogieDeclarations]: Found implementation of procedure readb [2022-11-19 08:03:44,520 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_107 [2022-11-19 08:03:44,520 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_107 [2022-11-19 08:03:46,018 INFO L235 CfgBuilder]: Building ICFG [2022-11-19 08:03:46,025 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-19 08:03:46,608 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-19 08:06:49,659 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2022-11-19 08:06:49,935 INFO L276 CfgBuilder]: Performing block encoding [2022-11-19 08:06:55,813 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-19 08:06:55,813 INFO L300 CfgBuilder]: Removed 4 assume(true) statements. [2022-11-19 08:06:55,821 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:06:55 BoogieIcfgContainer [2022-11-19 08:06:55,822 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-19 08:06:55,833 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-19 08:06:55,833 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-19 08:06:55,838 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-19 08:06:55,838 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 08:03:36" (1/3) ... [2022-11-19 08:06:55,840 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@585791b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 08:06:55, skipping insertion in model container [2022-11-19 08:06:55,840 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:03:43" (2/3) ... [2022-11-19 08:06:55,840 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@585791b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 08:06:55, skipping insertion in model container [2022-11-19 08:06:55,842 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:06:55" (3/3) ... [2022-11-19 08:06:55,843 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-cassini.cil.i [2022-11-19 08:06:55,862 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-19 08:06:55,863 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2022-11-19 08:06:55,988 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-19 08:06:55,996 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;@1a30b30c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-19 08:06:55,997 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-11-19 08:06:56,011 INFO L276 IsEmpty]: Start isEmpty. Operand has 2916 states, 1656 states have (on average 1.2765700483091786) internal successors, (2114), 1726 states have internal predecessors, (2114), 1091 states have call successors, (1091), 168 states have call predecessors, (1091), 167 states have return successors, (1086), 1074 states have call predecessors, (1086), 1086 states have call successors, (1086) [2022-11-19 08:06:56,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-11-19 08:06:56,041 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:06:56,042 INFO L195 NwaCegarLoop]: trace histogram [13, 12, 12, 12, 12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:06:56,042 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-19 08:06:56,051 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:06:56,051 INFO L85 PathProgramCache]: Analyzing trace with hash -193985794, now seen corresponding path program 1 times [2022-11-19 08:06:56,061 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:06:56,063 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1833634180] [2022-11-19 08:06:56,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:06:56,069 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:06:57,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:06:57,948 INFO L134 CoverageAnalysis]: Checked inductivity of 552 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 552 trivial. 0 not checked. [2022-11-19 08:06:57,948 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:06:57,949 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1833634180] [2022-11-19 08:06:57,949 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1833634180] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:06:57,950 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:06:57,950 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 08:06:57,951 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [749616231] [2022-11-19 08:06:57,952 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:06:57,957 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 08:06:57,957 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:06:57,988 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 08:06:57,988 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:06:57,997 INFO L87 Difference]: Start difference. First operand has 2916 states, 1656 states have (on average 1.2765700483091786) internal successors, (2114), 1726 states have internal predecessors, (2114), 1091 states have call successors, (1091), 168 states have call predecessors, (1091), 167 states have return successors, (1086), 1074 states have call predecessors, (1086), 1086 states have call successors, (1086) Second operand has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 3 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2022-11-19 08:07:00,153 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:07:08,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:07:08,535 INFO L93 Difference]: Finished difference Result 8626 states and 13064 transitions. [2022-11-19 08:07:08,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 08:07:08,538 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 3 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) Word has length 137 [2022-11-19 08:07:08,539 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:07:08,619 INFO L225 Difference]: With dead ends: 8626 [2022-11-19 08:07:08,619 INFO L226 Difference]: Without dead ends: 5725 [2022-11-19 08:07:08,655 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:07:08,661 INFO L413 NwaCegarLoop]: 4863 mSDtfsCounter, 4172 mSDsluCounter, 3786 mSDsCounter, 0 mSdLazyCounter, 938 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4172 SdHoareTripleChecker+Valid, 8649 SdHoareTripleChecker+Invalid, 942 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 938 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.9s IncrementalHoareTripleChecker+Time [2022-11-19 08:07:08,662 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4172 Valid, 8649 Invalid, 942 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3 Valid, 938 Invalid, 1 Unknown, 0 Unchecked, 9.9s Time] [2022-11-19 08:07:08,690 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5725 states. [2022-11-19 08:07:09,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5725 to 5721. [2022-11-19 08:07:09,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5721 states, 3261 states have (on average 1.2744556884391292) internal successors, (4156), 3397 states have internal predecessors, (4156), 2126 states have call successors, (2126), 332 states have call predecessors, (2126), 331 states have return successors, (2123), 2099 states have call predecessors, (2123), 2123 states have call successors, (2123) [2022-11-19 08:07:09,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5721 states to 5721 states and 8405 transitions. [2022-11-19 08:07:09,252 INFO L78 Accepts]: Start accepts. Automaton has 5721 states and 8405 transitions. Word has length 137 [2022-11-19 08:07:09,258 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:07:09,258 INFO L495 AbstractCegarLoop]: Abstraction has 5721 states and 8405 transitions. [2022-11-19 08:07:09,259 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 3 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2022-11-19 08:07:09,259 INFO L276 IsEmpty]: Start isEmpty. Operand 5721 states and 8405 transitions. [2022-11-19 08:07:09,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2022-11-19 08:07:09,265 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:07:09,265 INFO L195 NwaCegarLoop]: trace histogram [13, 12, 12, 12, 12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:07:09,266 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-19 08:07:09,266 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-19 08:07:09,267 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:07:09,267 INFO L85 PathProgramCache]: Analyzing trace with hash -471481905, now seen corresponding path program 1 times [2022-11-19 08:07:09,267 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:07:09,267 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1796997755] [2022-11-19 08:07:09,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:07:09,268 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:07:09,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:07:10,584 INFO L134 CoverageAnalysis]: Checked inductivity of 552 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 552 trivial. 0 not checked. [2022-11-19 08:07:10,584 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:07:10,585 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1796997755] [2022-11-19 08:07:10,585 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1796997755] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:07:10,585 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:07:10,585 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 08:07:10,586 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [459669231] [2022-11-19 08:07:10,586 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:07:10,587 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 08:07:10,588 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:07:10,588 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 08:07:10,588 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:07:10,589 INFO L87 Difference]: Start difference. First operand 5721 states and 8405 transitions. Second operand has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 3 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2022-11-19 08:07:12,712 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:07:21,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:07:21,611 INFO L93 Difference]: Finished difference Result 16943 states and 24925 transitions. [2022-11-19 08:07:21,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 08:07:21,612 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 3 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) Word has length 142 [2022-11-19 08:07:21,613 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:07:21,703 INFO L225 Difference]: With dead ends: 16943 [2022-11-19 08:07:21,703 INFO L226 Difference]: Without dead ends: 11247 [2022-11-19 08:07:21,743 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:07:21,744 INFO L413 NwaCegarLoop]: 4857 mSDtfsCounter, 4108 mSDsluCounter, 3795 mSDsCounter, 0 mSdLazyCounter, 934 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4108 SdHoareTripleChecker+Valid, 8652 SdHoareTripleChecker+Invalid, 938 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 934 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.2s IncrementalHoareTripleChecker+Time [2022-11-19 08:07:21,745 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4108 Valid, 8652 Invalid, 938 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3 Valid, 934 Invalid, 1 Unknown, 0 Unchecked, 10.2s Time] [2022-11-19 08:07:21,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11247 states. [2022-11-19 08:07:22,444 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11247 to 11211. [2022-11-19 08:07:22,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11211 states, 6406 states have (on average 1.2736497034030596) internal successors, (8159), 6672 states have internal predecessors, (8159), 4143 states have call successors, (4143), 662 states have call predecessors, (4143), 659 states have return successors, (4202), 4080 states have call predecessors, (4202), 4140 states have call successors, (4202) [2022-11-19 08:07:22,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11211 states to 11211 states and 16504 transitions. [2022-11-19 08:07:22,563 INFO L78 Accepts]: Start accepts. Automaton has 11211 states and 16504 transitions. Word has length 142 [2022-11-19 08:07:22,565 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:07:22,566 INFO L495 AbstractCegarLoop]: Abstraction has 11211 states and 16504 transitions. [2022-11-19 08:07:22,567 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 3 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2022-11-19 08:07:22,567 INFO L276 IsEmpty]: Start isEmpty. Operand 11211 states and 16504 transitions. [2022-11-19 08:07:22,572 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2022-11-19 08:07:22,573 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:07:22,573 INFO L195 NwaCegarLoop]: trace histogram [13, 12, 12, 12, 12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:07:22,573 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-19 08:07:22,574 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-19 08:07:22,574 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:07:22,574 INFO L85 PathProgramCache]: Analyzing trace with hash -1970678566, now seen corresponding path program 1 times [2022-11-19 08:07:22,574 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:07:22,575 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [501201877] [2022-11-19 08:07:22,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:07:22,575 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:07:23,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:07:23,535 INFO L134 CoverageAnalysis]: Checked inductivity of 552 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 552 trivial. 0 not checked. [2022-11-19 08:07:23,538 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:07:23,538 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [501201877] [2022-11-19 08:07:23,540 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [501201877] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:07:23,540 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:07:23,542 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 08:07:23,542 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [310453687] [2022-11-19 08:07:23,543 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:07:23,543 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 08:07:23,545 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:07:23,545 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 08:07:23,545 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:07:23,546 INFO L87 Difference]: Start difference. First operand 11211 states and 16504 transitions. Second operand has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 3 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2022-11-19 08:07:25,666 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:07:34,089 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:07:34,090 INFO L93 Difference]: Finished difference Result 32183 states and 47238 transitions. [2022-11-19 08:07:34,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 08:07:34,090 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 3 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) Word has length 146 [2022-11-19 08:07:34,091 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:07:34,233 INFO L225 Difference]: With dead ends: 32183 [2022-11-19 08:07:34,233 INFO L226 Difference]: Without dead ends: 20997 [2022-11-19 08:07:34,293 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:07:34,294 INFO L413 NwaCegarLoop]: 4737 mSDtfsCounter, 3692 mSDsluCounter, 3726 mSDsCounter, 0 mSdLazyCounter, 976 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3692 SdHoareTripleChecker+Valid, 8463 SdHoareTripleChecker+Invalid, 984 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 976 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.5s IncrementalHoareTripleChecker+Time [2022-11-19 08:07:34,294 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3692 Valid, 8463 Invalid, 984 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 976 Invalid, 1 Unknown, 0 Unchecked, 9.5s Time] [2022-11-19 08:07:34,320 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20997 states. [2022-11-19 08:07:36,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20997 to 20957. [2022-11-19 08:07:36,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20957 states, 11980 states have (on average 1.267195325542571) internal successors, (15181), 12474 states have internal predecessors, (15181), 7693 states have call successors, (7693), 1286 states have call predecessors, (7693), 1281 states have return successors, (7822), 7578 states have call predecessors, (7822), 7690 states have call successors, (7822) [2022-11-19 08:07:36,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20957 states to 20957 states and 30696 transitions. [2022-11-19 08:07:36,352 INFO L78 Accepts]: Start accepts. Automaton has 20957 states and 30696 transitions. Word has length 146 [2022-11-19 08:07:36,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:07:36,353 INFO L495 AbstractCegarLoop]: Abstraction has 20957 states and 30696 transitions. [2022-11-19 08:07:36,354 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 3 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2022-11-19 08:07:36,354 INFO L276 IsEmpty]: Start isEmpty. Operand 20957 states and 30696 transitions. [2022-11-19 08:07:36,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2022-11-19 08:07:36,361 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:07:36,362 INFO L195 NwaCegarLoop]: trace histogram [13, 12, 12, 12, 12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:07:36,362 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-19 08:07:36,362 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-19 08:07:36,364 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:07:36,364 INFO L85 PathProgramCache]: Analyzing trace with hash 1828177808, now seen corresponding path program 1 times [2022-11-19 08:07:36,364 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:07:36,365 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1837076997] [2022-11-19 08:07:36,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:07:36,365 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:07:36,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:07:37,537 INFO L134 CoverageAnalysis]: Checked inductivity of 552 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 552 trivial. 0 not checked. [2022-11-19 08:07:37,537 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:07:37,538 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1837076997] [2022-11-19 08:07:37,538 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1837076997] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:07:37,538 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:07:37,538 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 08:07:37,539 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [262601637] [2022-11-19 08:07:37,539 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:07:37,540 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 08:07:37,540 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:07:37,540 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 08:07:37,540 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:07:37,541 INFO L87 Difference]: Start difference. First operand 20957 states and 30696 transitions. Second operand has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 3 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2022-11-19 08:07:39,679 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:07:48,122 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:07:48,122 INFO L93 Difference]: Finished difference Result 39136 states and 56916 transitions. [2022-11-19 08:07:48,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 08:07:48,123 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 3 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) Word has length 151 [2022-11-19 08:07:48,124 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:07:48,226 INFO L225 Difference]: With dead ends: 39136 [2022-11-19 08:07:48,226 INFO L226 Difference]: Without dead ends: 18204 [2022-11-19 08:07:48,320 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:07:48,321 INFO L413 NwaCegarLoop]: 5055 mSDtfsCounter, 2448 mSDsluCounter, 3761 mSDsCounter, 0 mSdLazyCounter, 1112 mSolverCounterSat, 16 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2448 SdHoareTripleChecker+Valid, 8816 SdHoareTripleChecker+Invalid, 1129 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 1112 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.9s IncrementalHoareTripleChecker+Time [2022-11-19 08:07:48,322 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2448 Valid, 8816 Invalid, 1129 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 1112 Invalid, 1 Unknown, 0 Unchecked, 9.9s Time] [2022-11-19 08:07:48,343 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18204 states. [2022-11-19 08:07:49,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18204 to 18169. [2022-11-19 08:07:49,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18169 states, 10492 states have (on average 1.2646778497903164) internal successors, (13269), 10929 states have internal predecessors, (13269), 6383 states have call successors, (6383), 1294 states have call predecessors, (6383), 1291 states have return successors, (6465), 6286 states have call predecessors, (6465), 6380 states have call successors, (6465) [2022-11-19 08:07:49,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18169 states to 18169 states and 26117 transitions. [2022-11-19 08:07:49,683 INFO L78 Accepts]: Start accepts. Automaton has 18169 states and 26117 transitions. Word has length 151 [2022-11-19 08:07:49,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:07:49,684 INFO L495 AbstractCegarLoop]: Abstraction has 18169 states and 26117 transitions. [2022-11-19 08:07:49,685 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 3 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2022-11-19 08:07:49,685 INFO L276 IsEmpty]: Start isEmpty. Operand 18169 states and 26117 transitions. [2022-11-19 08:07:49,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2022-11-19 08:07:49,688 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:07:49,688 INFO L195 NwaCegarLoop]: trace histogram [13, 12, 12, 12, 12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:07:49,688 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-19 08:07:49,689 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-19 08:07:49,689 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:07:49,690 INFO L85 PathProgramCache]: Analyzing trace with hash 1150297259, now seen corresponding path program 1 times [2022-11-19 08:07:49,690 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:07:49,690 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1721103929] [2022-11-19 08:07:49,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:07:49,690 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:07:50,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:07:50,649 INFO L134 CoverageAnalysis]: Checked inductivity of 552 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 552 trivial. 0 not checked. [2022-11-19 08:07:50,650 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:07:50,650 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1721103929] [2022-11-19 08:07:50,650 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1721103929] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:07:50,650 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:07:50,650 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 08:07:50,650 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [187285654] [2022-11-19 08:07:50,650 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:07:50,651 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 08:07:50,651 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:07:50,651 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 08:07:50,651 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:07:50,651 INFO L87 Difference]: Start difference. First operand 18169 states and 26117 transitions. Second operand has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 3 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2022-11-19 08:07:52,774 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:08:00,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:08:00,591 INFO L93 Difference]: Finished difference Result 48716 states and 70299 transitions. [2022-11-19 08:08:00,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 08:08:00,592 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 3 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) Word has length 154 [2022-11-19 08:08:00,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:08:00,770 INFO L225 Difference]: With dead ends: 48716 [2022-11-19 08:08:00,770 INFO L226 Difference]: Without dead ends: 30572 [2022-11-19 08:08:00,850 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:08:00,854 INFO L413 NwaCegarLoop]: 4879 mSDtfsCounter, 4201 mSDsluCounter, 3749 mSDsCounter, 0 mSdLazyCounter, 939 mSolverCounterSat, 6 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4201 SdHoareTripleChecker+Valid, 8628 SdHoareTripleChecker+Invalid, 946 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 939 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.7s IncrementalHoareTripleChecker+Time [2022-11-19 08:08:00,856 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4201 Valid, 8628 Invalid, 946 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 939 Invalid, 1 Unknown, 0 Unchecked, 8.7s Time] [2022-11-19 08:08:00,889 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30572 states. [2022-11-19 08:08:02,742 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30572 to 30532. [2022-11-19 08:08:02,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30532 states, 17605 states have (on average 1.2648679352456689) internal successors, (22268), 18346 states have internal predecessors, (22268), 10849 states have call successors, (10849), 2084 states have call predecessors, (10849), 2075 states have return successors, (11020), 10658 states have call predecessors, (11020), 10846 states have call successors, (11020) [2022-11-19 08:08:02,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30532 states to 30532 states and 44137 transitions. [2022-11-19 08:08:02,960 INFO L78 Accepts]: Start accepts. Automaton has 30532 states and 44137 transitions. Word has length 154 [2022-11-19 08:08:02,960 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:08:02,961 INFO L495 AbstractCegarLoop]: Abstraction has 30532 states and 44137 transitions. [2022-11-19 08:08:02,961 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 3 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2022-11-19 08:08:02,961 INFO L276 IsEmpty]: Start isEmpty. Operand 30532 states and 44137 transitions. [2022-11-19 08:08:02,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2022-11-19 08:08:02,964 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:08:02,965 INFO L195 NwaCegarLoop]: trace histogram [16, 12, 12, 12, 12, 12, 12, 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] [2022-11-19 08:08:02,965 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-19 08:08:02,965 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-19 08:08:02,965 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:08:02,966 INFO L85 PathProgramCache]: Analyzing trace with hash -1143545199, now seen corresponding path program 1 times [2022-11-19 08:08:02,966 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:08:02,966 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [387445343] [2022-11-19 08:08:02,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:08:02,966 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:08:03,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:08:05,179 INFO L134 CoverageAnalysis]: Checked inductivity of 659 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 659 trivial. 0 not checked. [2022-11-19 08:08:05,179 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:08:05,179 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [387445343] [2022-11-19 08:08:05,179 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [387445343] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:08:05,179 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:08:05,179 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-19 08:08:05,180 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [38673187] [2022-11-19 08:08:05,180 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:08:05,180 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-19 08:08:05,180 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:08:05,181 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-19 08:08:05,181 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-19 08:08:05,181 INFO L87 Difference]: Start difference. First operand 30532 states and 44137 transitions. Second operand has 5 states, 5 states have (on average 7.8) internal successors, (39), 4 states have internal predecessors, (39), 2 states have call successors, (23), 3 states have call predecessors, (23), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-11-19 08:08:07,333 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.15s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:08:21,405 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:08:21,406 INFO L93 Difference]: Finished difference Result 56215 states and 81229 transitions. [2022-11-19 08:08:21,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-19 08:08:21,406 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.8) internal successors, (39), 4 states have internal predecessors, (39), 2 states have call successors, (23), 3 states have call predecessors, (23), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 175 [2022-11-19 08:08:21,407 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:08:21,737 INFO L225 Difference]: With dead ends: 56215 [2022-11-19 08:08:21,737 INFO L226 Difference]: Without dead ends: 56213 [2022-11-19 08:08:21,765 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-19 08:08:21,766 INFO L413 NwaCegarLoop]: 4695 mSDtfsCounter, 4040 mSDsluCounter, 12531 mSDsCounter, 0 mSdLazyCounter, 1871 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4058 SdHoareTripleChecker+Valid, 17226 SdHoareTripleChecker+Invalid, 1875 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1871 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.2s IncrementalHoareTripleChecker+Time [2022-11-19 08:08:21,766 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4058 Valid, 17226 Invalid, 1875 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3 Valid, 1871 Invalid, 1 Unknown, 0 Unchecked, 14.2s Time] [2022-11-19 08:08:21,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56213 states. [2022-11-19 08:08:24,433 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56213 to 56177. [2022-11-19 08:08:24,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56177 states, 32434 states have (on average 1.2666337793673306) internal successors, (41082), 33918 states have internal predecessors, (41082), 19801 states have call successors, (19801), 4049 states have call predecessors, (19801), 3939 states have return successors, (20311), 19168 states have call predecessors, (20311), 19795 states have call successors, (20311) [2022-11-19 08:08:25,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56177 states to 56177 states and 81194 transitions. [2022-11-19 08:08:25,234 INFO L78 Accepts]: Start accepts. Automaton has 56177 states and 81194 transitions. Word has length 175 [2022-11-19 08:08:25,245 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:08:25,245 INFO L495 AbstractCegarLoop]: Abstraction has 56177 states and 81194 transitions. [2022-11-19 08:08:25,246 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.8) internal successors, (39), 4 states have internal predecessors, (39), 2 states have call successors, (23), 3 states have call predecessors, (23), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-11-19 08:08:25,246 INFO L276 IsEmpty]: Start isEmpty. Operand 56177 states and 81194 transitions. [2022-11-19 08:08:25,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2022-11-19 08:08:25,250 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:08:25,250 INFO L195 NwaCegarLoop]: trace histogram [16, 12, 12, 12, 12, 12, 12, 4, 4, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:08:25,250 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-19 08:08:25,251 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-19 08:08:25,251 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:08:25,251 INFO L85 PathProgramCache]: Analyzing trace with hash -410113413, now seen corresponding path program 1 times [2022-11-19 08:08:25,251 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:08:25,252 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [413236319] [2022-11-19 08:08:25,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:08:25,252 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:08:25,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:08:27,351 INFO L134 CoverageAnalysis]: Checked inductivity of 661 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 659 trivial. 0 not checked. [2022-11-19 08:08:27,351 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:08:27,351 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [413236319] [2022-11-19 08:08:27,351 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [413236319] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:08:27,351 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:08:27,351 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-19 08:08:27,352 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1103369500] [2022-11-19 08:08:27,352 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:08:27,352 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-19 08:08:27,352 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:08:27,353 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-19 08:08:27,353 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-19 08:08:27,353 INFO L87 Difference]: Start difference. First operand 56177 states and 81194 transitions. Second operand has 5 states, 5 states have (on average 8.4) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (24), 3 states have call predecessors, (24), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2022-11-19 08:08:29,482 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:08:39,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:08:39,337 INFO L93 Difference]: Finished difference Result 56187 states and 81203 transitions. [2022-11-19 08:08:39,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-19 08:08:39,338 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (24), 3 states have call predecessors, (24), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 180 [2022-11-19 08:08:39,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:08:39,839 INFO L225 Difference]: With dead ends: 56187 [2022-11-19 08:08:39,839 INFO L226 Difference]: Without dead ends: 56185 [2022-11-19 08:08:39,868 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-19 08:08:39,870 INFO L413 NwaCegarLoop]: 3796 mSDtfsCounter, 4202 mSDsluCounter, 7566 mSDsCounter, 0 mSdLazyCounter, 1424 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4219 SdHoareTripleChecker+Valid, 11362 SdHoareTripleChecker+Invalid, 1426 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1424 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.2s IncrementalHoareTripleChecker+Time [2022-11-19 08:08:39,870 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4219 Valid, 11362 Invalid, 1426 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 1424 Invalid, 1 Unknown, 0 Unchecked, 10.2s Time] [2022-11-19 08:08:39,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56185 states. [2022-11-19 08:08:42,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56185 to 56185. [2022-11-19 08:08:42,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56185 states, 32440 states have (on average 1.2665844636251542) internal successors, (41088), 33924 states have internal predecessors, (41088), 19801 states have call successors, (19801), 4051 states have call predecessors, (19801), 3941 states have return successors, (20311), 19168 states have call predecessors, (20311), 19795 states have call successors, (20311) [2022-11-19 08:08:43,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56185 states to 56185 states and 81200 transitions. [2022-11-19 08:08:43,031 INFO L78 Accepts]: Start accepts. Automaton has 56185 states and 81200 transitions. Word has length 180 [2022-11-19 08:08:43,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:08:43,034 INFO L495 AbstractCegarLoop]: Abstraction has 56185 states and 81200 transitions. [2022-11-19 08:08:43,034 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (24), 3 states have call predecessors, (24), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2022-11-19 08:08:43,034 INFO L276 IsEmpty]: Start isEmpty. Operand 56185 states and 81200 transitions. [2022-11-19 08:08:43,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2022-11-19 08:08:43,037 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:08:43,037 INFO L195 NwaCegarLoop]: trace histogram [16, 12, 12, 12, 12, 12, 12, 4, 4, 3, 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] [2022-11-19 08:08:43,037 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-19 08:08:43,038 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-19 08:08:43,038 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:08:43,038 INFO L85 PathProgramCache]: Analyzing trace with hash 766925969, now seen corresponding path program 1 times [2022-11-19 08:08:43,038 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:08:43,038 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1587224176] [2022-11-19 08:08:43,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:08:43,039 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:08:43,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:08:45,075 INFO L134 CoverageAnalysis]: Checked inductivity of 667 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 663 trivial. 0 not checked. [2022-11-19 08:08:45,075 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:08:45,075 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1587224176] [2022-11-19 08:08:45,075 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1587224176] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:08:45,076 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:08:45,076 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-19 08:08:45,076 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1172466817] [2022-11-19 08:08:45,076 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:08:45,077 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-19 08:08:45,077 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:08:45,078 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-19 08:08:45,078 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-19 08:08:45,078 INFO L87 Difference]: Start difference. First operand 56185 states and 81200 transitions. Second operand has 5 states, 5 states have (on average 8.4) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (25), 3 states have call predecessors, (25), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2022-11-19 08:08:47,181 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:08:58,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:08:58,362 INFO L93 Difference]: Finished difference Result 56195 states and 81209 transitions. [2022-11-19 08:08:58,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-19 08:08:58,362 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (25), 3 states have call predecessors, (25), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 185 [2022-11-19 08:08:58,363 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:08:58,622 INFO L225 Difference]: With dead ends: 56195 [2022-11-19 08:08:58,622 INFO L226 Difference]: Without dead ends: 56193 [2022-11-19 08:08:58,649 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-19 08:08:58,650 INFO L413 NwaCegarLoop]: 3796 mSDtfsCounter, 4202 mSDsluCounter, 7566 mSDsCounter, 0 mSdLazyCounter, 1424 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4218 SdHoareTripleChecker+Valid, 11362 SdHoareTripleChecker+Invalid, 1426 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1424 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.1s IncrementalHoareTripleChecker+Time [2022-11-19 08:08:58,650 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4218 Valid, 11362 Invalid, 1426 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 1424 Invalid, 1 Unknown, 0 Unchecked, 11.1s Time] [2022-11-19 08:08:58,704 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56193 states. [2022-11-19 08:09:01,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56193 to 56193. [2022-11-19 08:09:01,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56193 states, 32446 states have (on average 1.2665351661221722) internal successors, (41094), 33930 states have internal predecessors, (41094), 19801 states have call successors, (19801), 4053 states have call predecessors, (19801), 3943 states have return successors, (20311), 19168 states have call predecessors, (20311), 19795 states have call successors, (20311) [2022-11-19 08:09:02,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56193 states to 56193 states and 81206 transitions. [2022-11-19 08:09:02,084 INFO L78 Accepts]: Start accepts. Automaton has 56193 states and 81206 transitions. Word has length 185 [2022-11-19 08:09:02,084 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:09:02,084 INFO L495 AbstractCegarLoop]: Abstraction has 56193 states and 81206 transitions. [2022-11-19 08:09:02,085 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (25), 3 states have call predecessors, (25), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2022-11-19 08:09:02,085 INFO L276 IsEmpty]: Start isEmpty. Operand 56193 states and 81206 transitions. [2022-11-19 08:09:02,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2022-11-19 08:09:02,089 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:09:02,089 INFO L195 NwaCegarLoop]: trace histogram [16, 12, 12, 12, 12, 12, 12, 4, 4, 4, 3, 3, 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] [2022-11-19 08:09:02,090 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-19 08:09:02,090 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-19 08:09:02,090 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:09:02,090 INFO L85 PathProgramCache]: Analyzing trace with hash -125493253, now seen corresponding path program 1 times [2022-11-19 08:09:02,091 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:09:02,091 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1796595736] [2022-11-19 08:09:02,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:09:02,091 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:09:02,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:09:04,124 INFO L134 CoverageAnalysis]: Checked inductivity of 677 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 671 trivial. 0 not checked. [2022-11-19 08:09:04,124 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:09:04,125 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1796595736] [2022-11-19 08:09:04,125 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1796595736] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:09:04,125 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:09:04,125 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-19 08:09:04,125 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1954799850] [2022-11-19 08:09:04,125 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:09:04,126 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-19 08:09:04,126 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:09:04,126 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-19 08:09:04,126 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-19 08:09:04,126 INFO L87 Difference]: Start difference. First operand 56193 states and 81206 transitions. Second operand has 5 states, 5 states have (on average 8.4) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (26), 3 states have call predecessors, (26), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2022-11-19 08:09:06,250 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:09:17,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:09:17,460 INFO L93 Difference]: Finished difference Result 56203 states and 81215 transitions. [2022-11-19 08:09:17,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-19 08:09:17,460 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (26), 3 states have call predecessors, (26), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) Word has length 190 [2022-11-19 08:09:17,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:09:17,722 INFO L225 Difference]: With dead ends: 56203 [2022-11-19 08:09:17,723 INFO L226 Difference]: Without dead ends: 56201 [2022-11-19 08:09:17,754 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-19 08:09:17,755 INFO L413 NwaCegarLoop]: 3796 mSDtfsCounter, 4202 mSDsluCounter, 7566 mSDsCounter, 0 mSdLazyCounter, 1424 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4217 SdHoareTripleChecker+Valid, 11362 SdHoareTripleChecker+Invalid, 1426 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1424 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.1s IncrementalHoareTripleChecker+Time [2022-11-19 08:09:17,755 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4217 Valid, 11362 Invalid, 1426 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 1424 Invalid, 1 Unknown, 0 Unchecked, 11.1s Time] [2022-11-19 08:09:17,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56201 states. [2022-11-19 08:09:20,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56201 to 56201. [2022-11-19 08:09:20,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56201 states, 32452 states have (on average 1.2664858868482682) internal successors, (41100), 33936 states have internal predecessors, (41100), 19801 states have call successors, (19801), 4055 states have call predecessors, (19801), 3945 states have return successors, (20311), 19168 states have call predecessors, (20311), 19795 states have call successors, (20311) [2022-11-19 08:09:21,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56201 states to 56201 states and 81212 transitions. [2022-11-19 08:09:21,026 INFO L78 Accepts]: Start accepts. Automaton has 56201 states and 81212 transitions. Word has length 190 [2022-11-19 08:09:21,027 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:09:21,027 INFO L495 AbstractCegarLoop]: Abstraction has 56201 states and 81212 transitions. [2022-11-19 08:09:21,027 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (26), 3 states have call predecessors, (26), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2022-11-19 08:09:21,028 INFO L276 IsEmpty]: Start isEmpty. Operand 56201 states and 81212 transitions. [2022-11-19 08:09:21,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2022-11-19 08:09:21,031 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:09:21,031 INFO L195 NwaCegarLoop]: trace histogram [16, 12, 12, 12, 12, 12, 12, 5, 4, 4, 4, 4, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:09:21,032 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-19 08:09:21,032 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-19 08:09:21,032 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:09:21,032 INFO L85 PathProgramCache]: Analyzing trace with hash 880215697, now seen corresponding path program 1 times [2022-11-19 08:09:21,033 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:09:21,033 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1770216067] [2022-11-19 08:09:21,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:09:21,033 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:09:21,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:09:22,936 INFO L134 CoverageAnalysis]: Checked inductivity of 691 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 683 trivial. 0 not checked. [2022-11-19 08:09:22,936 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:09:22,936 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1770216067] [2022-11-19 08:09:22,936 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1770216067] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:09:22,936 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:09:22,937 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-19 08:09:22,937 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1825022512] [2022-11-19 08:09:22,937 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:09:22,937 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-19 08:09:22,937 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:09:22,938 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-19 08:09:22,938 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-19 08:09:22,938 INFO L87 Difference]: Start difference. First operand 56201 states and 81212 transitions. Second operand has 5 states, 5 states have (on average 8.4) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (27), 3 states have call predecessors, (27), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2022-11-19 08:09:25,113 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.17s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:09:36,576 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:09:36,576 INFO L93 Difference]: Finished difference Result 56211 states and 81221 transitions. [2022-11-19 08:09:36,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-19 08:09:36,576 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (27), 3 states have call predecessors, (27), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) Word has length 195 [2022-11-19 08:09:36,577 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:09:36,755 INFO L225 Difference]: With dead ends: 56211 [2022-11-19 08:09:36,755 INFO L226 Difference]: Without dead ends: 56209 [2022-11-19 08:09:36,773 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-19 08:09:36,774 INFO L413 NwaCegarLoop]: 3796 mSDtfsCounter, 4202 mSDsluCounter, 7566 mSDsCounter, 0 mSdLazyCounter, 1424 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4216 SdHoareTripleChecker+Valid, 11362 SdHoareTripleChecker+Invalid, 1426 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1424 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.0s IncrementalHoareTripleChecker+Time [2022-11-19 08:09:36,774 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4216 Valid, 11362 Invalid, 1426 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 1424 Invalid, 1 Unknown, 0 Unchecked, 11.0s Time] [2022-11-19 08:09:36,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56209 states. [2022-11-19 08:09:39,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56209 to 56209. [2022-11-19 08:09:39,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56209 states, 32458 states have (on average 1.2664366257933328) internal successors, (41106), 33942 states have internal predecessors, (41106), 19801 states have call successors, (19801), 4057 states have call predecessors, (19801), 3947 states have return successors, (20311), 19168 states have call predecessors, (20311), 19795 states have call successors, (20311) [2022-11-19 08:09:40,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56209 states to 56209 states and 81218 transitions. [2022-11-19 08:09:40,054 INFO L78 Accepts]: Start accepts. Automaton has 56209 states and 81218 transitions. Word has length 195 [2022-11-19 08:09:40,055 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:09:40,055 INFO L495 AbstractCegarLoop]: Abstraction has 56209 states and 81218 transitions. [2022-11-19 08:09:40,055 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (27), 3 states have call predecessors, (27), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2022-11-19 08:09:40,055 INFO L276 IsEmpty]: Start isEmpty. Operand 56209 states and 81218 transitions. [2022-11-19 08:09:40,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2022-11-19 08:09:40,057 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:09:40,057 INFO L195 NwaCegarLoop]: trace histogram [16, 12, 12, 12, 12, 12, 12, 4, 4, 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] [2022-11-19 08:09:40,057 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-19 08:09:40,058 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-19 08:09:40,058 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:09:40,058 INFO L85 PathProgramCache]: Analyzing trace with hash 2109074957, now seen corresponding path program 1 times [2022-11-19 08:09:40,058 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:09:40,058 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1966368745] [2022-11-19 08:09:40,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:09:40,059 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:09:40,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:09:41,243 INFO L134 CoverageAnalysis]: Checked inductivity of 657 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 654 trivial. 0 not checked. [2022-11-19 08:09:41,243 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:09:41,243 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1966368745] [2022-11-19 08:09:41,244 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1966368745] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:09:41,244 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:09:41,244 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 08:09:41,244 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2125894983] [2022-11-19 08:09:41,244 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:09:41,244 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 08:09:41,245 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:09:41,245 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 08:09:41,245 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:09:41,245 INFO L87 Difference]: Start difference. First operand 56209 states and 81218 transitions. Second operand has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 3 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) [2022-11-19 08:09:43,370 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:09:56,306 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:09:56,306 INFO L93 Difference]: Finished difference Result 130623 states and 188334 transitions. [2022-11-19 08:09:56,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 08:09:56,307 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 3 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) Word has length 194 [2022-11-19 08:09:56,307 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:09:56,599 INFO L225 Difference]: With dead ends: 130623 [2022-11-19 08:09:56,599 INFO L226 Difference]: Without dead ends: 74477 [2022-11-19 08:09:57,086 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:09:57,087 INFO L413 NwaCegarLoop]: 5880 mSDtfsCounter, 2448 mSDsluCounter, 3754 mSDsCounter, 0 mSdLazyCounter, 1292 mSolverCounterSat, 15 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2448 SdHoareTripleChecker+Valid, 9634 SdHoareTripleChecker+Invalid, 1308 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 1292 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.9s IncrementalHoareTripleChecker+Time [2022-11-19 08:09:57,087 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2448 Valid, 9634 Invalid, 1308 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 1292 Invalid, 1 Unknown, 0 Unchecked, 10.9s Time] [2022-11-19 08:09:57,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74477 states.