./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 b5237d83 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58b1f19b-a86c-48a1-aace-df3ab78eaaaa/bin/utaipan-g80aRyZoba/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58b1f19b-a86c-48a1-aace-df3ab78eaaaa/bin/utaipan-g80aRyZoba/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58b1f19b-a86c-48a1-aace-df3ab78eaaaa/bin/utaipan-g80aRyZoba/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58b1f19b-a86c-48a1-aace-df3ab78eaaaa/bin/utaipan-g80aRyZoba/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_58b1f19b-a86c-48a1-aace-df3ab78eaaaa/bin/utaipan-g80aRyZoba/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58b1f19b-a86c-48a1-aace-df3ab78eaaaa/bin/utaipan-g80aRyZoba --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-b5237d8 [2022-11-22 00:23:46,422 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-22 00:23:46,425 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-22 00:23:46,464 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-22 00:23:46,466 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-22 00:23:46,470 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-22 00:23:46,473 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-22 00:23:46,476 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-22 00:23:46,478 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-22 00:23:46,483 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-22 00:23:46,486 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-22 00:23:46,488 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-22 00:23:46,489 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-22 00:23:46,491 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-22 00:23:46,494 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-22 00:23:46,496 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-22 00:23:46,498 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-22 00:23:46,499 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-22 00:23:46,500 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-22 00:23:46,507 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-22 00:23:46,509 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-22 00:23:46,511 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-22 00:23:46,513 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-22 00:23:46,514 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-22 00:23:46,524 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-22 00:23:46,524 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-22 00:23:46,525 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-22 00:23:46,527 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-22 00:23:46,527 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-22 00:23:46,530 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-22 00:23:46,530 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-22 00:23:46,531 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-22 00:23:46,533 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-22 00:23:46,534 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-22 00:23:46,536 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-22 00:23:46,536 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-22 00:23:46,537 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-22 00:23:46,538 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-22 00:23:46,538 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-22 00:23:46,539 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-22 00:23:46,540 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-22 00:23:46,541 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58b1f19b-a86c-48a1-aace-df3ab78eaaaa/bin/utaipan-g80aRyZoba/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-22 00:23:46,580 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-22 00:23:46,581 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-22 00:23:46,581 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-22 00:23:46,582 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-22 00:23:46,585 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-22 00:23:46,585 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-22 00:23:46,585 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-22 00:23:46,586 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-22 00:23:46,586 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-22 00:23:46,586 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-22 00:23:46,587 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-22 00:23:46,587 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-22 00:23:46,588 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-22 00:23:46,588 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-22 00:23:46,588 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-22 00:23:46,588 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-22 00:23:46,588 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-22 00:23:46,589 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-22 00:23:46,590 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-22 00:23:46,590 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-22 00:23:46,590 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-22 00:23:46,590 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-22 00:23:46,591 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-22 00:23:46,591 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-22 00:23:46,591 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-22 00:23:46,591 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-22 00:23:46,592 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-22 00:23:46,592 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-22 00:23:46,592 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-22 00:23:46,593 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 00:23:46,593 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-22 00:23:46,593 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-22 00:23:46,594 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-22 00:23:46,594 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-22 00:23:46,594 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-22 00:23:46,594 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-22 00:23:46,595 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-22 00:23:46,595 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-22 00:23:46,595 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_58b1f19b-a86c-48a1-aace-df3ab78eaaaa/bin/utaipan-g80aRyZoba/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58b1f19b-a86c-48a1-aace-df3ab78eaaaa/bin/utaipan-g80aRyZoba Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ce7b7e06b36a72b3de911fb70c1b245fd97c856ddcef7fa1f63b6ddc09812498 [2022-11-22 00:23:46,851 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-22 00:23:46,895 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-22 00:23:46,899 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-22 00:23:46,900 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-22 00:23:46,901 INFO L275 PluginConnector]: CDTParser initialized [2022-11-22 00:23:46,902 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58b1f19b-a86c-48a1-aace-df3ab78eaaaa/bin/utaipan-g80aRyZoba/../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-cassini.cil.i [2022-11-22 00:23:49,956 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-22 00:23:50,703 INFO L351 CDTParser]: Found 1 translation units. [2022-11-22 00:23:50,704 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58b1f19b-a86c-48a1-aace-df3ab78eaaaa/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-cassini.cil.i [2022-11-22 00:23:50,784 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58b1f19b-a86c-48a1-aace-df3ab78eaaaa/bin/utaipan-g80aRyZoba/data/9baf154d2/fb27747728764d71a62b4628c44bda93/FLAGe34b5f7ca [2022-11-22 00:23:50,803 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58b1f19b-a86c-48a1-aace-df3ab78eaaaa/bin/utaipan-g80aRyZoba/data/9baf154d2/fb27747728764d71a62b4628c44bda93 [2022-11-22 00:23:50,805 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-22 00:23:50,807 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-22 00:23:50,810 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-22 00:23:50,811 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-22 00:23:50,814 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-22 00:23:50,816 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 12:23:50" (1/1) ... [2022-11-22 00:23:50,817 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7707a05b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:23:50, skipping insertion in model container [2022-11-22 00:23:50,817 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 12:23:50" (1/1) ... [2022-11-22 00:23:50,825 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-22 00:23:51,021 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-22 00:23:56,426 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58b1f19b-a86c-48a1-aace-df3ab78eaaaa/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-cassini.cil.i[493165,493178] [2022-11-22 00:23:56,433 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58b1f19b-a86c-48a1-aace-df3ab78eaaaa/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-cassini.cil.i[493334,493347] [2022-11-22 00:23:56,434 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58b1f19b-a86c-48a1-aace-df3ab78eaaaa/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-cassini.cil.i[493501,493514] [2022-11-22 00:23:56,435 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58b1f19b-a86c-48a1-aace-df3ab78eaaaa/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-cassini.cil.i[493669,493682] [2022-11-22 00:23:56,469 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 00:23:56,534 INFO L203 MainTranslator]: Completed pre-run [2022-11-22 00:23:57,069 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58b1f19b-a86c-48a1-aace-df3ab78eaaaa/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-cassini.cil.i[493165,493178] [2022-11-22 00:23:57,070 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58b1f19b-a86c-48a1-aace-df3ab78eaaaa/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-cassini.cil.i[493334,493347] [2022-11-22 00:23:57,070 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58b1f19b-a86c-48a1-aace-df3ab78eaaaa/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-cassini.cil.i[493501,493514] [2022-11-22 00:23:57,071 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58b1f19b-a86c-48a1-aace-df3ab78eaaaa/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-cassini.cil.i[493669,493682] [2022-11-22 00:23:57,081 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 00:23:57,417 INFO L208 MainTranslator]: Completed translation [2022-11-22 00:23:57,418 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:23:57 WrapperNode [2022-11-22 00:23:57,418 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-22 00:23:57,419 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-22 00:23:57,419 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-22 00:23:57,420 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-22 00:23:57,427 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:23:57" (1/1) ... [2022-11-22 00:23:57,611 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:23:57" (1/1) ... [2022-11-22 00:23:57,947 INFO L138 Inliner]: procedures = 688, calls = 4282, calls flagged for inlining = 342, calls inlined = 319, statements flattened = 10347 [2022-11-22 00:23:57,947 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-22 00:23:57,948 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-22 00:23:57,948 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-22 00:23:57,948 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-22 00:23:57,958 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:23:57" (1/1) ... [2022-11-22 00:23:57,959 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:23:57" (1/1) ... [2022-11-22 00:23:58,012 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:23:57" (1/1) ... [2022-11-22 00:23:58,013 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:23:57" (1/1) ... [2022-11-22 00:23:58,290 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:23:57" (1/1) ... [2022-11-22 00:23:58,319 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:23:57" (1/1) ... [2022-11-22 00:23:58,420 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:23:57" (1/1) ... [2022-11-22 00:23:58,450 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:23:57" (1/1) ... [2022-11-22 00:23:58,499 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-22 00:23:58,500 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-22 00:23:58,500 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-22 00:23:58,500 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-22 00:23:58,501 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:23:57" (1/1) ... [2022-11-22 00:23:58,523 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 00:23:58,535 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58b1f19b-a86c-48a1-aace-df3ab78eaaaa/bin/utaipan-g80aRyZoba/z3 [2022-11-22 00:23:58,548 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58b1f19b-a86c-48a1-aace-df3ab78eaaaa/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-22 00:23:58,558 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58b1f19b-a86c-48a1-aace-df3ab78eaaaa/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-22 00:23:58,609 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2022-11-22 00:23:58,609 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2022-11-22 00:23:58,609 INFO L130 BoogieDeclarations]: Found specification of procedure cas_phy_read [2022-11-22 00:23:58,610 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_phy_read [2022-11-22 00:23:58,610 INFO L130 BoogieDeclarations]: Found specification of procedure cas_pcs_link_check [2022-11-22 00:23:58,610 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_pcs_link_check [2022-11-22 00:23:58,610 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2022-11-22 00:23:58,610 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2022-11-22 00:23:58,610 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-11-22 00:23:58,610 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-11-22 00:23:58,611 INFO L130 BoogieDeclarations]: Found specification of procedure lowmem_page_address [2022-11-22 00:23:58,611 INFO L138 BoogieDeclarations]: Found implementation of procedure lowmem_page_address [2022-11-22 00:23:58,611 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_page [2022-11-22 00:23:58,611 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_page [2022-11-22 00:23:58,611 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-22 00:23:58,611 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-22 00:23:58,611 INFO L130 BoogieDeclarations]: Found specification of procedure cas_mii_link_check [2022-11-22 00:23:58,611 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_mii_link_check [2022-11-22 00:23:58,611 INFO L130 BoogieDeclarations]: Found specification of procedure cas_calc_tabort [2022-11-22 00:23:58,612 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_calc_tabort [2022-11-22 00:23:58,612 INFO L130 BoogieDeclarations]: Found specification of procedure pci_read_config_word [2022-11-22 00:23:58,612 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_read_config_word [2022-11-22 00:23:58,612 INFO L130 BoogieDeclarations]: Found specification of procedure pci_dma_sync_single_for_cpu [2022-11-22 00:23:58,612 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_dma_sync_single_for_cpu [2022-11-22 00:23:58,612 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-11-22 00:23:58,612 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-11-22 00:23:58,612 INFO L130 BoogieDeclarations]: Found specification of procedure dma_map_page [2022-11-22 00:23:58,612 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_map_page [2022-11-22 00:23:58,613 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2022-11-22 00:23:58,613 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2022-11-22 00:23:58,613 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_on [2022-11-22 00:23:58,613 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_on [2022-11-22 00:23:58,613 INFO L130 BoogieDeclarations]: Found specification of procedure cas_lock_tx [2022-11-22 00:23:58,613 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_lock_tx [2022-11-22 00:23:58,613 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2022-11-22 00:23:58,613 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2022-11-22 00:23:58,614 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-11-22 00:23:58,614 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-11-22 00:23:58,614 INFO L130 BoogieDeclarations]: Found specification of procedure cas_disable_irq [2022-11-22 00:23:58,614 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_disable_irq [2022-11-22 00:23:58,614 INFO L130 BoogieDeclarations]: Found specification of procedure cas_free_rxds [2022-11-22 00:23:58,614 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_free_rxds [2022-11-22 00:23:58,614 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_page [2022-11-22 00:23:58,614 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_page [2022-11-22 00:23:58,615 INFO L130 BoogieDeclarations]: Found specification of procedure cas_open [2022-11-22 00:23:58,615 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_open [2022-11-22 00:23:58,615 INFO L130 BoogieDeclarations]: Found specification of procedure cas_interrupt [2022-11-22 00:23:58,615 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_interrupt [2022-11-22 00:23:58,615 INFO L130 BoogieDeclarations]: Found specification of procedure cas_tx_tiny_free [2022-11-22 00:23:58,615 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_tx_tiny_free [2022-11-22 00:23:58,615 INFO L130 BoogieDeclarations]: Found specification of procedure PageTail [2022-11-22 00:23:58,615 INFO L138 BoogieDeclarations]: Found implementation of procedure PageTail [2022-11-22 00:23:58,615 INFO L130 BoogieDeclarations]: Found specification of procedure tx_tiny_map [2022-11-22 00:23:58,616 INFO L138 BoogieDeclarations]: Found implementation of procedure tx_tiny_map [2022-11-22 00:23:58,616 INFO L130 BoogieDeclarations]: Found specification of procedure cas_phy_init [2022-11-22 00:23:58,616 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_phy_init [2022-11-22 00:23:58,616 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_pages [2022-11-22 00:23:58,616 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_pages [2022-11-22 00:23:58,616 INFO L130 BoogieDeclarations]: Found specification of procedure skb_frag_size_set [2022-11-22 00:23:58,616 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_frag_size_set [2022-11-22 00:23:58,616 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2022-11-22 00:23:58,616 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2022-11-22 00:23:58,617 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-11-22 00:23:58,617 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-11-22 00:23:58,617 INFO L130 BoogieDeclarations]: Found specification of procedure cas_enable_irq [2022-11-22 00:23:58,617 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_enable_irq [2022-11-22 00:23:58,617 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2022-11-22 00:23:58,617 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2022-11-22 00:23:58,617 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2022-11-22 00:23:58,617 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2022-11-22 00:23:58,617 INFO L130 BoogieDeclarations]: Found specification of procedure cas_page_dequeue [2022-11-22 00:23:58,618 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_page_dequeue [2022-11-22 00:23:58,618 INFO L130 BoogieDeclarations]: Found specification of procedure netif_rx [2022-11-22 00:23:58,618 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_rx [2022-11-22 00:23:58,618 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2022-11-22 00:23:58,618 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2022-11-22 00:23:58,618 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-11-22 00:23:58,618 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-11-22 00:23:58,618 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-11-22 00:23:58,618 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-11-22 00:23:58,619 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_attach [2022-11-22 00:23:58,619 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_attach [2022-11-22 00:23:58,619 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-22 00:23:58,619 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_108 [2022-11-22 00:23:58,619 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_108 [2022-11-22 00:23:58,619 INFO L130 BoogieDeclarations]: Found specification of procedure pci_write_config_word [2022-11-22 00:23:58,619 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_write_config_word [2022-11-22 00:23:58,619 INFO L130 BoogieDeclarations]: Found specification of procedure cas_set_multicast [2022-11-22 00:23:58,619 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_set_multicast [2022-11-22 00:23:58,620 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2022-11-22 00:23:58,620 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2022-11-22 00:23:58,620 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_detach [2022-11-22 00:23:58,620 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_detach [2022-11-22 00:23:58,620 INFO L130 BoogieDeclarations]: Found specification of procedure cas_spare_free [2022-11-22 00:23:58,620 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_spare_free [2022-11-22 00:23:58,620 INFO L130 BoogieDeclarations]: Found specification of procedure cas_tx_timeout [2022-11-22 00:23:58,620 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_tx_timeout [2022-11-22 00:23:58,621 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-11-22 00:23:58,621 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-11-22 00:23:58,621 INFO L130 BoogieDeclarations]: Found specification of procedure cas_read_pcs_link_mode [2022-11-22 00:23:58,621 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_read_pcs_link_mode [2022-11-22 00:23:58,621 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2022-11-22 00:23:58,621 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2022-11-22 00:23:58,621 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-11-22 00:23:58,635 INFO L130 BoogieDeclarations]: Found specification of procedure cas_close [2022-11-22 00:23:58,635 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_close [2022-11-22 00:23:58,635 INFO L130 BoogieDeclarations]: Found specification of procedure cas_page_swap [2022-11-22 00:23:58,635 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_page_swap [2022-11-22 00:23:58,635 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-11-22 00:23:58,635 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-11-22 00:23:58,635 INFO L130 BoogieDeclarations]: Found specification of procedure cas_netpoll [2022-11-22 00:23:58,635 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_netpoll [2022-11-22 00:23:58,636 INFO L130 BoogieDeclarations]: Found specification of procedure cas_hard_reset [2022-11-22 00:23:58,636 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_hard_reset [2022-11-22 00:23:58,636 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2022-11-22 00:23:58,636 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2022-11-22 00:23:58,636 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-22 00:23:58,636 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-11-22 00:23:58,636 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-11-22 00:23:58,636 INFO L130 BoogieDeclarations]: Found specification of procedure cas_rxc_init [2022-11-22 00:23:58,637 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_rxc_init [2022-11-22 00:23:58,637 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-22 00:23:58,637 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-22 00:23:58,637 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-22 00:23:58,637 INFO L130 BoogieDeclarations]: Found specification of procedure cas_clear_mac_err [2022-11-22 00:23:58,637 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_clear_mac_err [2022-11-22 00:23:58,637 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2022-11-22 00:23:58,637 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2022-11-22 00:23:58,638 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2022-11-22 00:23:58,638 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2022-11-22 00:23:58,638 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2022-11-22 00:23:58,638 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2022-11-22 00:23:58,638 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_dma_mask [2022-11-22 00:23:58,638 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_dma_mask [2022-11-22 00:23:58,638 INFO L130 BoogieDeclarations]: Found specification of procedure cas_remove_one [2022-11-22 00:23:58,638 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_remove_one [2022-11-22 00:23:58,638 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_NOT_ARG_SIGN [2022-11-22 00:23:58,639 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_NOT_ARG_SIGN [2022-11-22 00:23:58,639 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2022-11-22 00:23:58,649 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2022-11-22 00:23:58,649 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2022-11-22 00:23:58,649 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2022-11-22 00:23:58,649 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2022-11-22 00:23:58,649 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2022-11-22 00:23:58,649 INFO L130 BoogieDeclarations]: Found specification of procedure __skb_dequeue [2022-11-22 00:23:58,649 INFO L138 BoogieDeclarations]: Found implementation of procedure __skb_dequeue [2022-11-22 00:23:58,649 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-22 00:23:58,649 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2022-11-22 00:23:58,650 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2022-11-22 00:23:58,650 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2022-11-22 00:23:58,650 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2022-11-22 00:23:58,650 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer [2022-11-22 00:23:58,650 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer [2022-11-22 00:23:58,650 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-22 00:23:58,650 INFO L130 BoogieDeclarations]: Found specification of procedure list_splice_init [2022-11-22 00:23:58,650 INFO L138 BoogieDeclarations]: Found implementation of procedure list_splice_init [2022-11-22 00:23:58,650 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-11-22 00:23:58,651 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-11-22 00:23:58,651 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-11-22 00:23:58,651 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-11-22 00:23:58,651 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-22 00:23:58,651 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-11-22 00:23:58,651 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-11-22 00:23:58,651 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-11-22 00:23:58,651 INFO L130 BoogieDeclarations]: Found specification of procedure cas_set_link_modes [2022-11-22 00:23:58,651 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_set_link_modes [2022-11-22 00:23:58,652 INFO L130 BoogieDeclarations]: Found specification of procedure cas_read_mii_link_mode [2022-11-22 00:23:58,652 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_read_mii_link_mode [2022-11-22 00:23:58,652 INFO L130 BoogieDeclarations]: Found specification of procedure __list_splice [2022-11-22 00:23:58,652 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_splice [2022-11-22 00:23:58,652 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2022-11-22 00:23:58,652 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2022-11-22 00:23:58,652 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2022-11-22 00:23:58,652 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2022-11-22 00:23:58,653 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2022-11-22 00:23:58,653 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2022-11-22 00:23:58,653 INFO L130 BoogieDeclarations]: Found specification of procedure kmap_atomic [2022-11-22 00:23:58,653 INFO L138 BoogieDeclarations]: Found implementation of procedure kmap_atomic [2022-11-22 00:23:58,653 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2022-11-22 00:23:58,653 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2022-11-22 00:23:58,653 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-11-22 00:23:58,653 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-11-22 00:23:58,653 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2022-11-22 00:23:58,654 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2022-11-22 00:23:58,654 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2022-11-22 00:23:58,654 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2022-11-22 00:23:58,654 INFO L130 BoogieDeclarations]: Found specification of procedure csum_unfold [2022-11-22 00:23:58,654 INFO L138 BoogieDeclarations]: Found implementation of procedure csum_unfold [2022-11-22 00:23:58,654 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2022-11-22 00:23:58,654 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2022-11-22 00:23:58,654 INFO L130 BoogieDeclarations]: Found specification of procedure cas_entropy_gather [2022-11-22 00:23:58,654 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_entropy_gather [2022-11-22 00:23:58,655 INFO L130 BoogieDeclarations]: Found specification of procedure cas_resume [2022-11-22 00:23:58,655 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_resume [2022-11-22 00:23:58,655 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-22 00:23:58,655 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-22 00:23:58,655 INFO L130 BoogieDeclarations]: Found specification of procedure cas_page_alloc [2022-11-22 00:23:58,655 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_page_alloc [2022-11-22 00:23:58,655 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-22 00:23:58,655 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-22 00:23:58,656 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-22 00:23:58,656 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-22 00:23:58,656 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-11-22 00:23:58,656 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-11-22 00:23:58,656 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2022-11-22 00:23:58,656 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2022-11-22 00:23:58,656 INFO L130 BoogieDeclarations]: Found specification of procedure cas_mif_poll [2022-11-22 00:23:58,656 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_mif_poll [2022-11-22 00:23:58,656 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2022-11-22 00:23:58,657 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2022-11-22 00:23:58,657 INFO L130 BoogieDeclarations]: Found specification of procedure cas_unlock_tx [2022-11-22 00:23:58,657 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_unlock_tx [2022-11-22 00:23:58,657 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-11-22 00:23:58,657 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-11-22 00:23:58,657 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_133 [2022-11-22 00:23:58,657 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_133 [2022-11-22 00:23:58,657 INFO L130 BoogieDeclarations]: Found specification of procedure list_splice [2022-11-22 00:23:58,657 INFO L138 BoogieDeclarations]: Found implementation of procedure list_splice [2022-11-22 00:23:58,658 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_135 [2022-11-22 00:23:58,658 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_135 [2022-11-22 00:23:58,658 INFO L130 BoogieDeclarations]: Found specification of procedure ethtool_cmd_speed_set [2022-11-22 00:23:58,658 INFO L138 BoogieDeclarations]: Found implementation of procedure ethtool_cmd_speed_set [2022-11-22 00:23:58,658 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_sub [2022-11-22 00:23:58,658 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_sub [2022-11-22 00:23:58,658 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2022-11-22 00:23:58,658 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2022-11-22 00:23:58,658 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-22 00:23:58,659 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-22 00:23:58,659 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2022-11-22 00:23:58,659 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2022-11-22 00:23:58,659 INFO L130 BoogieDeclarations]: Found specification of procedure pci_alloc_consistent [2022-11-22 00:23:58,659 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_alloc_consistent [2022-11-22 00:23:58,659 INFO L130 BoogieDeclarations]: Found specification of procedure tx_tiny_buf [2022-11-22 00:23:58,659 INFO L138 BoogieDeclarations]: Found implementation of procedure tx_tiny_buf [2022-11-22 00:23:58,659 INFO L130 BoogieDeclarations]: Found specification of procedure cas_mac_reset [2022-11-22 00:23:58,660 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_mac_reset [2022-11-22 00:23:58,660 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_lock_of_cas [2022-11-22 00:23:58,660 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_lock_of_cas [2022-11-22 00:23:58,660 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-22 00:23:58,660 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-11-22 00:23:58,660 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-11-22 00:23:58,660 INFO L130 BoogieDeclarations]: Found specification of procedure __skb_frag_set_page [2022-11-22 00:23:58,660 INFO L138 BoogieDeclarations]: Found implementation of procedure __skb_frag_set_page [2022-11-22 00:23:58,660 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-22 00:23:58,661 INFO L130 BoogieDeclarations]: Found specification of procedure cas_get_regs_len [2022-11-22 00:23:58,661 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_get_regs_len [2022-11-22 00:23:58,661 INFO L130 BoogieDeclarations]: Found specification of procedure cas_reset [2022-11-22 00:23:58,661 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_reset [2022-11-22 00:23:58,661 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_NOT_ARG_SIGN [2022-11-22 00:23:58,661 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_NOT_ARG_SIGN [2022-11-22 00:23:58,661 INFO L130 BoogieDeclarations]: Found specification of procedure __free_pages [2022-11-22 00:23:58,661 INFO L138 BoogieDeclarations]: Found implementation of procedure __free_pages [2022-11-22 00:23:58,661 INFO L130 BoogieDeclarations]: Found specification of procedure cas_post_page [2022-11-22 00:23:58,662 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_post_page [2022-11-22 00:23:58,662 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-22 00:23:58,662 INFO L130 BoogieDeclarations]: Found specification of procedure pci_write_config_byte [2022-11-22 00:23:58,662 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_write_config_byte [2022-11-22 00:23:58,662 INFO L130 BoogieDeclarations]: Found specification of procedure cas_nway_reset [2022-11-22 00:23:58,662 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_nway_reset [2022-11-22 00:23:58,662 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2022-11-22 00:23:58,662 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2022-11-22 00:23:58,672 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-11-22 00:23:58,672 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-11-22 00:23:58,672 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-11-22 00:23:58,672 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-11-22 00:23:58,673 INFO L130 BoogieDeclarations]: Found specification of procedure cas_setup_multicast [2022-11-22 00:23:58,673 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_setup_multicast [2022-11-22 00:23:58,673 INFO L130 BoogieDeclarations]: Found specification of procedure cas_phy_powerdown [2022-11-22 00:23:58,673 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_phy_powerdown [2022-11-22 00:23:58,673 INFO L130 BoogieDeclarations]: Found specification of procedure cas_post_rxds_ringN [2022-11-22 00:23:58,673 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_post_rxds_ringN [2022-11-22 00:23:58,673 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_irq [2022-11-22 00:23:58,673 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_irq [2022-11-22 00:23:58,673 INFO L130 BoogieDeclarations]: Found specification of procedure cas_vpd_match [2022-11-22 00:23:58,674 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_vpd_match [2022-11-22 00:23:58,674 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_83 [2022-11-22 00:23:58,674 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_83 [2022-11-22 00:23:58,674 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_81 [2022-11-22 00:23:58,674 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_81 [2022-11-22 00:23:58,674 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2022-11-22 00:23:58,674 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2022-11-22 00:23:58,674 INFO L130 BoogieDeclarations]: Found specification of procedure cpumask_weight [2022-11-22 00:23:58,674 INFO L138 BoogieDeclarations]: Found implementation of procedure cpumask_weight [2022-11-22 00:23:58,675 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2022-11-22 00:23:58,675 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2022-11-22 00:23:58,675 INFO L130 BoogieDeclarations]: Found specification of procedure page_count [2022-11-22 00:23:58,675 INFO L138 BoogieDeclarations]: Found implementation of procedure page_count [2022-11-22 00:23:58,675 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-11-22 00:23:58,675 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-11-22 00:23:58,675 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_77 [2022-11-22 00:23:58,675 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_77 [2022-11-22 00:23:58,675 INFO L130 BoogieDeclarations]: Found specification of procedure cas_shutdown [2022-11-22 00:23:58,676 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_shutdown [2022-11-22 00:23:58,676 INFO L130 BoogieDeclarations]: Found specification of procedure cas_begin_auto_negotiation [2022-11-22 00:23:58,676 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_begin_auto_negotiation [2022-11-22 00:23:58,676 INFO L130 BoogieDeclarations]: Found specification of procedure skb_frag_page [2022-11-22 00:23:58,676 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_frag_page [2022-11-22 00:23:58,676 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-11-22 00:23:58,676 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-11-22 00:23:58,676 INFO L130 BoogieDeclarations]: Found specification of procedure cas_write_txd [2022-11-22 00:23:58,677 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_write_txd [2022-11-22 00:23:58,677 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-22 00:23:58,677 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-22 00:23:58,677 INFO L130 BoogieDeclarations]: Found specification of procedure __skb_frag_ref [2022-11-22 00:23:58,677 INFO L138 BoogieDeclarations]: Found implementation of procedure __skb_frag_ref [2022-11-22 00:23:58,677 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-22 00:23:58,677 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-22 00:23:58,677 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-22 00:23:58,677 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_82 [2022-11-22 00:23:58,678 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_82 [2022-11-22 00:23:58,678 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_84 [2022-11-22 00:23:58,678 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_84 [2022-11-22 00:23:58,678 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_79 [2022-11-22 00:23:58,678 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_79 [2022-11-22 00:23:58,678 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_inc [2022-11-22 00:23:58,678 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_inc [2022-11-22 00:23:58,678 INFO L130 BoogieDeclarations]: Found specification of procedure cas_init_hw [2022-11-22 00:23:58,678 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_init_hw [2022-11-22 00:23:58,679 INFO L130 BoogieDeclarations]: Found specification of procedure cas_clean_rings [2022-11-22 00:23:58,679 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_clean_rings [2022-11-22 00:23:58,679 INFO L130 BoogieDeclarations]: Found specification of procedure cas_page_free [2022-11-22 00:23:58,679 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_page_free [2022-11-22 00:23:58,679 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec [2022-11-22 00:23:58,679 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec [2022-11-22 00:23:58,679 INFO L130 BoogieDeclarations]: Found specification of procedure cas_phy_write [2022-11-22 00:23:58,679 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_phy_write [2022-11-22 00:23:58,679 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-11-22 00:23:58,679 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-11-22 00:23:58,680 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_work [2022-11-22 00:23:58,680 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_work [2022-11-22 00:23:58,680 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iounmap [2022-11-22 00:23:58,680 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iounmap [2022-11-22 00:23:58,680 INFO L130 BoogieDeclarations]: Found specification of procedure cas_spare_recover [2022-11-22 00:23:58,680 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_spare_recover [2022-11-22 00:23:58,680 INFO L130 BoogieDeclarations]: Found specification of procedure ethtool_cmd_speed [2022-11-22 00:23:58,680 INFO L138 BoogieDeclarations]: Found implementation of procedure ethtool_cmd_speed [2022-11-22 00:23:58,680 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2022-11-22 00:23:58,680 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2022-11-22 00:23:58,681 INFO L130 BoogieDeclarations]: Found specification of procedure cas_get_stats [2022-11-22 00:23:58,681 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_get_stats [2022-11-22 00:23:58,681 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2022-11-22 00:23:58,681 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2022-11-22 00:23:58,681 INFO L130 BoogieDeclarations]: Found specification of procedure __kunmap_atomic [2022-11-22 00:23:58,681 INFO L138 BoogieDeclarations]: Found implementation of procedure __kunmap_atomic [2022-11-22 00:23:58,681 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-22 00:23:58,681 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2022-11-22 00:23:58,681 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2022-11-22 00:23:58,682 INFO L130 BoogieDeclarations]: Found specification of procedure pci_dma_sync_single_for_device [2022-11-22 00:23:58,682 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_dma_sync_single_for_device [2022-11-22 00:23:58,682 INFO L130 BoogieDeclarations]: Found specification of procedure readb [2022-11-22 00:23:58,682 INFO L138 BoogieDeclarations]: Found implementation of procedure readb [2022-11-22 00:23:58,682 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_107 [2022-11-22 00:23:58,682 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_107 [2022-11-22 00:24:00,284 INFO L235 CfgBuilder]: Building ICFG [2022-11-22 00:24:00,292 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-22 00:24:00,714 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-22 00:27:51,878 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2022-11-22 00:27:52,201 INFO L276 CfgBuilder]: Performing block encoding [2022-11-22 00:27:56,849 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-22 00:27:56,850 INFO L300 CfgBuilder]: Removed 4 assume(true) statements. [2022-11-22 00:27:56,859 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 12:27:56 BoogieIcfgContainer [2022-11-22 00:27:56,861 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-22 00:27:56,865 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-22 00:27:56,865 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-22 00:27:56,868 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-22 00:27:56,869 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 12:23:50" (1/3) ... [2022-11-22 00:27:56,869 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4eec79a1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 12:27:56, skipping insertion in model container [2022-11-22 00:27:56,870 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:23:57" (2/3) ... [2022-11-22 00:27:56,870 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4eec79a1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 12:27:56, skipping insertion in model container [2022-11-22 00:27:56,870 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 12:27:56" (3/3) ... [2022-11-22 00:27:56,871 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-cassini.cil.i [2022-11-22 00:27:56,891 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-22 00:27:56,892 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2022-11-22 00:27:57,013 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-22 00:27:57,022 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;@3881ce2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-22 00:27:57,022 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-11-22 00:27:57,041 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) [2022-11-22 00:27:57,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-11-22 00:27:57,067 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:27:57,067 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] [2022-11-22 00:27:57,068 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)] === [2022-11-22 00:27:57,074 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:27:57,075 INFO L85 PathProgramCache]: Analyzing trace with hash 2039636398, now seen corresponding path program 1 times [2022-11-22 00:27:57,086 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:27:57,087 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [817440321] [2022-11-22 00:27:57,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:27:57,088 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:27:57,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:27:58,901 INFO L134 CoverageAnalysis]: Checked inductivity of 552 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 552 trivial. 0 not checked. [2022-11-22 00:27:58,901 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:27:58,902 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [817440321] [2022-11-22 00:27:58,907 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [817440321] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 00:27:58,908 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 00:27:58,908 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 00:27:58,910 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [47557421] [2022-11-22 00:27:58,910 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 00:27:58,916 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 00:27:58,916 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:27:58,947 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 00:27:58,948 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 00:27:58,959 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) [2022-11-22 00:28:01,129 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 [] [2022-11-22 00:28:08,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:28:08,531 INFO L93 Difference]: Finished difference Result 8626 states and 13064 transitions. [2022-11-22 00:28:08,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 00:28:08,535 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 [2022-11-22 00:28:08,536 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:28:08,601 INFO L225 Difference]: With dead ends: 8626 [2022-11-22 00:28:08,601 INFO L226 Difference]: Without dead ends: 5725 [2022-11-22 00:28:08,635 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 [2022-11-22 00:28:08,640 INFO L413 NwaCegarLoop]: 4891 mSDtfsCounter, 4172 mSDsluCounter, 3814 mSDsCounter, 0 mSdLazyCounter, 882 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4172 SdHoareTripleChecker+Valid, 8705 SdHoareTripleChecker+Invalid, 886 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 882 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.0s IncrementalHoareTripleChecker+Time [2022-11-22 00:28:08,641 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4172 Valid, 8705 Invalid, 886 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3 Valid, 882 Invalid, 1 Unknown, 0 Unchecked, 9.0s Time] [2022-11-22 00:28:08,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5725 states. [2022-11-22 00:28:09,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5725 to 5721. [2022-11-22 00:28:09,131 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) [2022-11-22 00:28:09,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5721 states to 5721 states and 8405 transitions. [2022-11-22 00:28:09,193 INFO L78 Accepts]: Start accepts. Automaton has 5721 states and 8405 transitions. Word has length 137 [2022-11-22 00:28:09,197 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:28:09,197 INFO L495 AbstractCegarLoop]: Abstraction has 5721 states and 8405 transitions. [2022-11-22 00:28:09,197 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) [2022-11-22 00:28:09,197 INFO L276 IsEmpty]: Start isEmpty. Operand 5721 states and 8405 transitions. [2022-11-22 00:28:09,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2022-11-22 00:28:09,211 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:28:09,212 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] [2022-11-22 00:28:09,213 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-22 00:28:09,213 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)] === [2022-11-22 00:28:09,213 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:28:09,214 INFO L85 PathProgramCache]: Analyzing trace with hash -1145504328, now seen corresponding path program 1 times [2022-11-22 00:28:09,214 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:28:09,214 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [74619767] [2022-11-22 00:28:09,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:28:09,214 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:28:09,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:28:10,431 INFO L134 CoverageAnalysis]: Checked inductivity of 552 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 552 trivial. 0 not checked. [2022-11-22 00:28:10,431 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:28:10,431 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [74619767] [2022-11-22 00:28:10,434 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [74619767] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 00:28:10,436 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 00:28:10,436 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 00:28:10,437 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [747612985] [2022-11-22 00:28:10,437 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 00:28:10,438 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 00:28:10,439 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:28:10,440 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 00:28:10,440 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 00:28:10,440 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) [2022-11-22 00:28:12,548 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 00:28:20,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:28:20,322 INFO L93 Difference]: Finished difference Result 16943 states and 24925 transitions. [2022-11-22 00:28:20,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 00:28:20,327 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 [2022-11-22 00:28:20,329 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:28:20,416 INFO L225 Difference]: With dead ends: 16943 [2022-11-22 00:28:20,416 INFO L226 Difference]: Without dead ends: 11247 [2022-11-22 00:28:20,456 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 [2022-11-22 00:28:20,457 INFO L413 NwaCegarLoop]: 4874 mSDtfsCounter, 4108 mSDsluCounter, 3823 mSDsCounter, 0 mSdLazyCounter, 878 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4108 SdHoareTripleChecker+Valid, 8697 SdHoareTripleChecker+Invalid, 882 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 878 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.2s IncrementalHoareTripleChecker+Time [2022-11-22 00:28:20,458 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4108 Valid, 8697 Invalid, 882 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3 Valid, 878 Invalid, 1 Unknown, 0 Unchecked, 9.2s Time] [2022-11-22 00:28:20,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11247 states. [2022-11-22 00:28:21,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11247 to 11211. [2022-11-22 00:28:21,453 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) [2022-11-22 00:28:21,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11211 states to 11211 states and 16504 transitions. [2022-11-22 00:28:21,526 INFO L78 Accepts]: Start accepts. Automaton has 11211 states and 16504 transitions. Word has length 142 [2022-11-22 00:28:21,528 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:28:21,528 INFO L495 AbstractCegarLoop]: Abstraction has 11211 states and 16504 transitions. [2022-11-22 00:28:21,529 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) [2022-11-22 00:28:21,529 INFO L276 IsEmpty]: Start isEmpty. Operand 11211 states and 16504 transitions. [2022-11-22 00:28:21,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2022-11-22 00:28:21,535 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:28:21,536 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] [2022-11-22 00:28:21,536 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-22 00:28:21,536 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)] === [2022-11-22 00:28:21,545 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:28:21,546 INFO L85 PathProgramCache]: Analyzing trace with hash -1309334893, now seen corresponding path program 1 times [2022-11-22 00:28:21,546 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:28:21,546 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1382833491] [2022-11-22 00:28:21,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:28:21,547 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:28:21,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:28:22,404 INFO L134 CoverageAnalysis]: Checked inductivity of 552 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 552 trivial. 0 not checked. [2022-11-22 00:28:22,405 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:28:22,405 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1382833491] [2022-11-22 00:28:22,405 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1382833491] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 00:28:22,405 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 00:28:22,405 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 00:28:22,405 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [61746103] [2022-11-22 00:28:22,406 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 00:28:22,406 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 00:28:22,406 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:28:22,407 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 00:28:22,407 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 00:28:22,407 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) [2022-11-22 00:28:24,528 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 [] [2022-11-22 00:28:32,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:28:32,512 INFO L93 Difference]: Finished difference Result 32183 states and 47238 transitions. [2022-11-22 00:28:32,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 00:28:32,513 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 [2022-11-22 00:28:32,513 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:28:32,679 INFO L225 Difference]: With dead ends: 32183 [2022-11-22 00:28:32,680 INFO L226 Difference]: Without dead ends: 20997 [2022-11-22 00:28:32,756 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 [2022-11-22 00:28:32,761 INFO L413 NwaCegarLoop]: 4765 mSDtfsCounter, 3692 mSDsluCounter, 3754 mSDsCounter, 0 mSdLazyCounter, 920 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3692 SdHoareTripleChecker+Valid, 8519 SdHoareTripleChecker+Invalid, 928 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 920 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.2s IncrementalHoareTripleChecker+Time [2022-11-22 00:28:32,762 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3692 Valid, 8519 Invalid, 928 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 920 Invalid, 1 Unknown, 0 Unchecked, 9.2s Time] [2022-11-22 00:28:32,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20997 states. [2022-11-22 00:28:34,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20997 to 20957. [2022-11-22 00:28:34,423 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) [2022-11-22 00:28:34,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20957 states to 20957 states and 30696 transitions. [2022-11-22 00:28:34,559 INFO L78 Accepts]: Start accepts. Automaton has 20957 states and 30696 transitions. Word has length 146 [2022-11-22 00:28:34,560 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:28:34,560 INFO L495 AbstractCegarLoop]: Abstraction has 20957 states and 30696 transitions. [2022-11-22 00:28:34,560 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) [2022-11-22 00:28:34,561 INFO L276 IsEmpty]: Start isEmpty. Operand 20957 states and 30696 transitions. [2022-11-22 00:28:34,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2022-11-22 00:28:34,563 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:28:34,563 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] [2022-11-22 00:28:34,564 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-22 00:28:34,564 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)] === [2022-11-22 00:28:34,565 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:28:34,565 INFO L85 PathProgramCache]: Analyzing trace with hash -107765060, now seen corresponding path program 1 times [2022-11-22 00:28:34,565 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:28:34,565 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1490375597] [2022-11-22 00:28:34,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:28:34,566 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:28:35,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:28:35,888 INFO L134 CoverageAnalysis]: Checked inductivity of 552 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 552 trivial. 0 not checked. [2022-11-22 00:28:35,888 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:28:35,888 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1490375597] [2022-11-22 00:28:35,889 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1490375597] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 00:28:35,889 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 00:28:35,889 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 00:28:35,889 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1834852489] [2022-11-22 00:28:35,889 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 00:28:35,890 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 00:28:35,891 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:28:35,891 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 00:28:35,891 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 00:28:35,892 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) [2022-11-22 00:28:38,020 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 [] [2022-11-22 00:28:46,068 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:28:46,068 INFO L93 Difference]: Finished difference Result 39136 states and 56916 transitions. [2022-11-22 00:28:46,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 00:28:46,070 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 [2022-11-22 00:28:46,070 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:28:46,165 INFO L225 Difference]: With dead ends: 39136 [2022-11-22 00:28:46,165 INFO L226 Difference]: Without dead ends: 18204 [2022-11-22 00:28:46,252 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 [2022-11-22 00:28:46,257 INFO L413 NwaCegarLoop]: 5022 mSDtfsCounter, 2448 mSDsluCounter, 3789 mSDsCounter, 0 mSdLazyCounter, 1045 mSolverCounterSat, 16 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2448 SdHoareTripleChecker+Valid, 8811 SdHoareTripleChecker+Invalid, 1062 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 1045 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.1s IncrementalHoareTripleChecker+Time [2022-11-22 00:28:46,259 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2448 Valid, 8811 Invalid, 1062 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 1045 Invalid, 1 Unknown, 0 Unchecked, 9.1s Time] [2022-11-22 00:28:46,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18204 states. [2022-11-22 00:28:47,205 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18204 to 18169. [2022-11-22 00:28:47,234 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) [2022-11-22 00:28:47,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18169 states to 18169 states and 26117 transitions. [2022-11-22 00:28:47,339 INFO L78 Accepts]: Start accepts. Automaton has 18169 states and 26117 transitions. Word has length 151 [2022-11-22 00:28:47,340 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:28:47,341 INFO L495 AbstractCegarLoop]: Abstraction has 18169 states and 26117 transitions. [2022-11-22 00:28:47,341 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) [2022-11-22 00:28:47,341 INFO L276 IsEmpty]: Start isEmpty. Operand 18169 states and 26117 transitions. [2022-11-22 00:28:47,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2022-11-22 00:28:47,344 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:28:47,344 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] [2022-11-22 00:28:47,344 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-22 00:28:47,345 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)] === [2022-11-22 00:28:47,345 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:28:47,346 INFO L85 PathProgramCache]: Analyzing trace with hash 1049443970, now seen corresponding path program 1 times [2022-11-22 00:28:47,346 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:28:47,346 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1173323174] [2022-11-22 00:28:47,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:28:47,346 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:28:47,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:28:48,419 INFO L134 CoverageAnalysis]: Checked inductivity of 552 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 552 trivial. 0 not checked. [2022-11-22 00:28:48,420 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:28:48,420 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1173323174] [2022-11-22 00:28:48,420 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1173323174] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 00:28:48,420 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 00:28:48,420 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 00:28:48,420 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [431973049] [2022-11-22 00:28:48,420 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 00:28:48,421 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 00:28:48,421 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:28:48,421 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 00:28:48,421 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 00:28:48,422 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) [2022-11-22 00:28:50,541 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 [] [2022-11-22 00:28:57,551 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:28:57,551 INFO L93 Difference]: Finished difference Result 48716 states and 70299 transitions. [2022-11-22 00:28:57,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 00:28:57,552 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 [2022-11-22 00:28:57,552 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:28:57,722 INFO L225 Difference]: With dead ends: 48716 [2022-11-22 00:28:57,723 INFO L226 Difference]: Without dead ends: 30572 [2022-11-22 00:28:57,797 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 [2022-11-22 00:28:57,797 INFO L413 NwaCegarLoop]: 5047 mSDtfsCounter, 4201 mSDsluCounter, 3777 mSDsCounter, 0 mSdLazyCounter, 898 mSolverCounterSat, 6 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4201 SdHoareTripleChecker+Valid, 8824 SdHoareTripleChecker+Invalid, 905 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 898 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.1s IncrementalHoareTripleChecker+Time [2022-11-22 00:28:57,798 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4201 Valid, 8824 Invalid, 905 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 898 Invalid, 1 Unknown, 0 Unchecked, 8.1s Time] [2022-11-22 00:28:57,833 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30572 states. [2022-11-22 00:28:59,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30572 to 30532. [2022-11-22 00:28:59,720 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) [2022-11-22 00:28:59,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30532 states to 30532 states and 44137 transitions. [2022-11-22 00:28:59,897 INFO L78 Accepts]: Start accepts. Automaton has 30532 states and 44137 transitions. Word has length 154 [2022-11-22 00:28:59,897 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:28:59,897 INFO L495 AbstractCegarLoop]: Abstraction has 30532 states and 44137 transitions. [2022-11-22 00:28:59,898 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) [2022-11-22 00:28:59,898 INFO L276 IsEmpty]: Start isEmpty. Operand 30532 states and 44137 transitions. [2022-11-22 00:28:59,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2022-11-22 00:28:59,900 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:28:59,900 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] [2022-11-22 00:28:59,901 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-22 00:28:59,901 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)] === [2022-11-22 00:28:59,901 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:28:59,901 INFO L85 PathProgramCache]: Analyzing trace with hash -1706072167, now seen corresponding path program 1 times [2022-11-22 00:28:59,902 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:28:59,902 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [732950900] [2022-11-22 00:28:59,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:28:59,902 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:29:00,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:29:02,105 INFO L134 CoverageAnalysis]: Checked inductivity of 659 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 659 trivial. 0 not checked. [2022-11-22 00:29:02,106 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:29:02,106 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [732950900] [2022-11-22 00:29:02,106 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [732950900] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 00:29:02,106 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 00:29:02,106 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-22 00:29:02,106 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [613744881] [2022-11-22 00:29:02,106 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 00:29:02,107 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-22 00:29:02,107 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:29:02,107 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-22 00:29:02,108 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-22 00:29:02,108 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) [2022-11-22 00:29:04,225 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 00:29:16,863 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:29:16,863 INFO L93 Difference]: Finished difference Result 56215 states and 81229 transitions. [2022-11-22 00:29:16,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-22 00:29:16,864 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 [2022-11-22 00:29:16,864 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:29:17,168 INFO L225 Difference]: With dead ends: 56215 [2022-11-22 00:29:17,168 INFO L226 Difference]: Without dead ends: 56213 [2022-11-22 00:29:17,199 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 [2022-11-22 00:29:17,200 INFO L413 NwaCegarLoop]: 4728 mSDtfsCounter, 4040 mSDsluCounter, 12620 mSDsCounter, 0 mSdLazyCounter, 1761 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4058 SdHoareTripleChecker+Valid, 17348 SdHoareTripleChecker+Invalid, 1765 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1761 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.9s IncrementalHoareTripleChecker+Time [2022-11-22 00:29:17,200 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4058 Valid, 17348 Invalid, 1765 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3 Valid, 1761 Invalid, 1 Unknown, 0 Unchecked, 12.9s Time] [2022-11-22 00:29:17,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56213 states. [2022-11-22 00:29:19,973 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56213 to 56177. [2022-11-22 00:29:20,024 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) [2022-11-22 00:29:20,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56177 states to 56177 states and 81194 transitions. [2022-11-22 00:29:20,734 INFO L78 Accepts]: Start accepts. Automaton has 56177 states and 81194 transitions. Word has length 175 [2022-11-22 00:29:20,739 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:29:20,739 INFO L495 AbstractCegarLoop]: Abstraction has 56177 states and 81194 transitions. [2022-11-22 00:29:20,739 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) [2022-11-22 00:29:20,740 INFO L276 IsEmpty]: Start isEmpty. Operand 56177 states and 81194 transitions. [2022-11-22 00:29:20,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2022-11-22 00:29:20,743 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:29:20,743 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] [2022-11-22 00:29:20,743 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-22 00:29:20,744 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)] === [2022-11-22 00:29:20,744 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:29:20,744 INFO L85 PathProgramCache]: Analyzing trace with hash 493025443, now seen corresponding path program 1 times [2022-11-22 00:29:20,745 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:29:20,745 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [870724969] [2022-11-22 00:29:20,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:29:20,745 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:29:21,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:29:22,756 INFO L134 CoverageAnalysis]: Checked inductivity of 661 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 659 trivial. 0 not checked. [2022-11-22 00:29:22,756 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:29:22,757 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [870724969] [2022-11-22 00:29:22,757 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [870724969] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 00:29:22,757 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 00:29:22,757 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-22 00:29:22,757 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2044046496] [2022-11-22 00:29:22,757 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 00:29:22,758 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-22 00:29:22,758 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:29:22,758 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-22 00:29:22,758 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-22 00:29:22,759 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) [2022-11-22 00:29:24,875 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 00:29:34,910 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:29:34,910 INFO L93 Difference]: Finished difference Result 56187 states and 81203 transitions. [2022-11-22 00:29:34,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-22 00:29:34,911 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 [2022-11-22 00:29:34,911 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:29:35,224 INFO L225 Difference]: With dead ends: 56187 [2022-11-22 00:29:35,225 INFO L226 Difference]: Without dead ends: 56185 [2022-11-22 00:29:35,256 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 [2022-11-22 00:29:35,257 INFO L413 NwaCegarLoop]: 3824 mSDtfsCounter, 4202 mSDsluCounter, 7622 mSDsCounter, 0 mSdLazyCounter, 1340 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4219 SdHoareTripleChecker+Valid, 11446 SdHoareTripleChecker+Invalid, 1342 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1340 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.2s IncrementalHoareTripleChecker+Time [2022-11-22 00:29:35,257 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4219 Valid, 11446 Invalid, 1342 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 1340 Invalid, 1 Unknown, 0 Unchecked, 10.2s Time] [2022-11-22 00:29:35,318 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56185 states. [2022-11-22 00:29:37,812 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56185 to 56185. [2022-11-22 00:29:37,848 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) [2022-11-22 00:29:38,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56185 states to 56185 states and 81200 transitions. [2022-11-22 00:29:38,315 INFO L78 Accepts]: Start accepts. Automaton has 56185 states and 81200 transitions. Word has length 180 [2022-11-22 00:29:38,317 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:29:38,318 INFO L495 AbstractCegarLoop]: Abstraction has 56185 states and 81200 transitions. [2022-11-22 00:29:38,318 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) [2022-11-22 00:29:38,318 INFO L276 IsEmpty]: Start isEmpty. Operand 56185 states and 81200 transitions. [2022-11-22 00:29:38,321 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2022-11-22 00:29:38,321 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:29:38,321 INFO L195 NwaCegarLoop]: trace histogram [16, 12, 12, 12, 12, 12, 12, 6, 6, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 00:29:38,322 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-22 00:29:38,322 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)] === [2022-11-22 00:29:38,322 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:29:38,322 INFO L85 PathProgramCache]: Analyzing trace with hash -473662926, now seen corresponding path program 1 times [2022-11-22 00:29:38,322 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:29:38,323 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1397384012] [2022-11-22 00:29:38,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:29:38,323 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:29:38,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:29:40,159 INFO L134 CoverageAnalysis]: Checked inductivity of 693 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 689 trivial. 0 not checked. [2022-11-22 00:29:40,159 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:29:40,159 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1397384012] [2022-11-22 00:29:40,159 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1397384012] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 00:29:40,159 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 00:29:40,159 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-22 00:29:40,159 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [794972252] [2022-11-22 00:29:40,160 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 00:29:40,160 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-22 00:29:40,160 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:29:40,160 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-22 00:29:40,160 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-22 00:29:40,161 INFO L87 Difference]: Start difference. First operand 56185 states and 81200 transitions. Second operand has 5 states, 5 states have (on average 8.8) internal successors, (44), 4 states have internal predecessors, (44), 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) [2022-11-22 00:29:42,280 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 [] [2022-11-22 00:29:53,304 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:29:53,304 INFO L93 Difference]: Finished difference Result 56195 states and 81209 transitions. [2022-11-22 00:29:53,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-22 00:29:53,305 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 4 states have internal predecessors, (44), 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 194 [2022-11-22 00:29:53,305 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:29:53,565 INFO L225 Difference]: With dead ends: 56195 [2022-11-22 00:29:53,565 INFO L226 Difference]: Without dead ends: 56193 [2022-11-22 00:29:53,588 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 [2022-11-22 00:29:53,589 INFO L413 NwaCegarLoop]: 3824 mSDtfsCounter, 4198 mSDsluCounter, 7622 mSDsCounter, 0 mSdLazyCounter, 1340 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4214 SdHoareTripleChecker+Valid, 11446 SdHoareTripleChecker+Invalid, 1342 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1340 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.9s IncrementalHoareTripleChecker+Time [2022-11-22 00:29:53,589 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4214 Valid, 11446 Invalid, 1342 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1340 Invalid, 1 Unknown, 0 Unchecked, 10.9s Time] [2022-11-22 00:29:53,641 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56193 states. [2022-11-22 00:29:56,335 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56193 to 56193. [2022-11-22 00:29:56,366 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) [2022-11-22 00:29:56,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56193 states to 56193 states and 81206 transitions. [2022-11-22 00:29:56,586 INFO L78 Accepts]: Start accepts. Automaton has 56193 states and 81206 transitions. Word has length 194 [2022-11-22 00:29:56,587 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:29:56,587 INFO L495 AbstractCegarLoop]: Abstraction has 56193 states and 81206 transitions. [2022-11-22 00:29:56,587 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 4 states have internal predecessors, (44), 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) [2022-11-22 00:29:56,588 INFO L276 IsEmpty]: Start isEmpty. Operand 56193 states and 81206 transitions. [2022-11-22 00:29:56,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2022-11-22 00:29:56,591 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:29:56,591 INFO L195 NwaCegarLoop]: trace histogram [16, 12, 12, 12, 12, 12, 12, 6, 6, 4, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 00:29:56,592 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-22 00:29:56,592 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)] === [2022-11-22 00:29:56,592 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:29:56,592 INFO L85 PathProgramCache]: Analyzing trace with hash 832097578, now seen corresponding path program 1 times [2022-11-22 00:29:56,593 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:29:56,593 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [61785695] [2022-11-22 00:29:56,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:29:56,593 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:29:56,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:29:58,508 INFO L134 CoverageAnalysis]: Checked inductivity of 703 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 697 trivial. 0 not checked. [2022-11-22 00:29:58,508 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:29:58,508 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [61785695] [2022-11-22 00:29:58,508 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [61785695] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 00:29:58,508 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 00:29:58,508 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-22 00:29:58,508 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1716336574] [2022-11-22 00:29:58,509 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 00:29:58,509 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-22 00:29:58,509 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:29:58,509 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-22 00:29:58,509 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-22 00:29:58,510 INFO L87 Difference]: Start difference. First operand 56193 states and 81206 transitions. Second operand has 5 states, 5 states have (on average 8.8) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (28), 3 states have call predecessors, (28), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2022-11-22 00:30:00,624 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 00:30:11,334 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:30:11,334 INFO L93 Difference]: Finished difference Result 56203 states and 81215 transitions. [2022-11-22 00:30:11,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-22 00:30:11,334 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (28), 3 states have call predecessors, (28), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) Word has length 199 [2022-11-22 00:30:11,335 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:30:11,576 INFO L225 Difference]: With dead ends: 56203 [2022-11-22 00:30:11,576 INFO L226 Difference]: Without dead ends: 56201 [2022-11-22 00:30:11,602 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 [2022-11-22 00:30:11,602 INFO L413 NwaCegarLoop]: 3824 mSDtfsCounter, 4198 mSDsluCounter, 7622 mSDsCounter, 0 mSdLazyCounter, 1340 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4213 SdHoareTripleChecker+Valid, 11446 SdHoareTripleChecker+Invalid, 1342 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1340 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.5s IncrementalHoareTripleChecker+Time [2022-11-22 00:30:11,603 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4213 Valid, 11446 Invalid, 1342 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1340 Invalid, 1 Unknown, 0 Unchecked, 10.5s Time] [2022-11-22 00:30:11,653 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56201 states. [2022-11-22 00:30:14,662 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56201 to 56201. [2022-11-22 00:30:14,699 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) [2022-11-22 00:30:14,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56201 states to 56201 states and 81212 transitions. [2022-11-22 00:30:14,964 INFO L78 Accepts]: Start accepts. Automaton has 56201 states and 81212 transitions. Word has length 199 [2022-11-22 00:30:14,964 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:30:14,964 INFO L495 AbstractCegarLoop]: Abstraction has 56201 states and 81212 transitions. [2022-11-22 00:30:14,965 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (28), 3 states have call predecessors, (28), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2022-11-22 00:30:14,965 INFO L276 IsEmpty]: Start isEmpty. Operand 56201 states and 81212 transitions. [2022-11-22 00:30:14,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2022-11-22 00:30:14,968 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:30:14,974 INFO L195 NwaCegarLoop]: trace histogram [16, 12, 12, 12, 12, 12, 12, 6, 6, 5, 4, 4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 00:30:14,975 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-22 00:30:14,975 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)] === [2022-11-22 00:30:14,976 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:30:14,976 INFO L85 PathProgramCache]: Analyzing trace with hash -50942734, now seen corresponding path program 1 times [2022-11-22 00:30:14,976 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:30:14,977 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [164244407] [2022-11-22 00:30:14,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:30:14,977 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:30:15,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:30:16,947 INFO L134 CoverageAnalysis]: Checked inductivity of 717 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 709 trivial. 0 not checked. [2022-11-22 00:30:16,947 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:30:16,947 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [164244407] [2022-11-22 00:30:16,947 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [164244407] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 00:30:16,947 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 00:30:16,948 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-22 00:30:16,948 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1268554054] [2022-11-22 00:30:16,948 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 00:30:16,948 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-22 00:30:16,949 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:30:16,949 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-22 00:30:16,949 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-22 00:30:16,949 INFO L87 Difference]: Start difference. First operand 56201 states and 81212 transitions. Second operand has 5 states, 5 states have (on average 8.8) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (29), 3 states have call predecessors, (29), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2022-11-22 00:30:19,093 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 [] [2022-11-22 00:30:30,255 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:30:30,255 INFO L93 Difference]: Finished difference Result 56211 states and 81221 transitions. [2022-11-22 00:30:30,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-22 00:30:30,256 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (29), 3 states have call predecessors, (29), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) Word has length 204 [2022-11-22 00:30:30,256 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:30:30,454 INFO L225 Difference]: With dead ends: 56211 [2022-11-22 00:30:30,454 INFO L226 Difference]: Without dead ends: 56209 [2022-11-22 00:30:30,477 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 [2022-11-22 00:30:30,478 INFO L413 NwaCegarLoop]: 3824 mSDtfsCounter, 4198 mSDsluCounter, 7622 mSDsCounter, 0 mSdLazyCounter, 1340 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4212 SdHoareTripleChecker+Valid, 11446 SdHoareTripleChecker+Invalid, 1342 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1340 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.5s IncrementalHoareTripleChecker+Time [2022-11-22 00:30:30,478 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4212 Valid, 11446 Invalid, 1342 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 1340 Invalid, 1 Unknown, 0 Unchecked, 10.5s Time] [2022-11-22 00:30:30,533 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56209 states. [2022-11-22 00:30:34,233 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56209 to 56209. [2022-11-22 00:30:34,266 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) [2022-11-22 00:30:34,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56209 states to 56209 states and 81218 transitions. [2022-11-22 00:30:34,521 INFO L78 Accepts]: Start accepts. Automaton has 56209 states and 81218 transitions. Word has length 204 [2022-11-22 00:30:34,521 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:30:34,521 INFO L495 AbstractCegarLoop]: Abstraction has 56209 states and 81218 transitions. [2022-11-22 00:30:34,521 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (29), 3 states have call predecessors, (29), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2022-11-22 00:30:34,521 INFO L276 IsEmpty]: Start isEmpty. Operand 56209 states and 81218 transitions. [2022-11-22 00:30:34,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2022-11-22 00:30:34,523 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:30:34,524 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] [2022-11-22 00:30:34,524 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-22 00:30:34,524 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)] === [2022-11-22 00:30:34,524 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:30:34,525 INFO L85 PathProgramCache]: Analyzing trace with hash 1759015390, now seen corresponding path program 1 times [2022-11-22 00:30:34,525 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:30:34,525 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1475217930] [2022-11-22 00:30:34,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:30:34,525 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:30:34,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:30:35,436 INFO L134 CoverageAnalysis]: Checked inductivity of 657 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 654 trivial. 0 not checked. [2022-11-22 00:30:35,436 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:30:35,436 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1475217930] [2022-11-22 00:30:35,437 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1475217930] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 00:30:35,437 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 00:30:35,437 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 00:30:35,437 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1075388140] [2022-11-22 00:30:35,437 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 00:30:35,437 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 00:30:35,438 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:30:35,438 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 00:30:35,438 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 00:30:35,438 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) [2022-11-22 00:30:37,542 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 [] [2022-11-22 00:30:49,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:30:49,819 INFO L93 Difference]: Finished difference Result 130623 states and 188334 transitions. [2022-11-22 00:30:49,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 00:30:49,819 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 [2022-11-22 00:30:49,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:30:50,257 INFO L225 Difference]: With dead ends: 130623 [2022-11-22 00:30:50,258 INFO L226 Difference]: Without dead ends: 74477 [2022-11-22 00:30:50,413 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 [2022-11-22 00:30:50,413 INFO L413 NwaCegarLoop]: 5921 mSDtfsCounter, 2448 mSDsluCounter, 3782 mSDsCounter, 0 mSdLazyCounter, 1223 mSolverCounterSat, 15 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2448 SdHoareTripleChecker+Valid, 9703 SdHoareTripleChecker+Invalid, 1239 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 1223 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.1s IncrementalHoareTripleChecker+Time [2022-11-22 00:30:50,413 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2448 Valid, 9703 Invalid, 1239 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 1223 Invalid, 1 Unknown, 0 Unchecked, 10.1s Time] [2022-11-22 00:30:50,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74477 states.