./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-usb-gspca-gspca_ov519.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 839c364b Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee582895-206a-41b7-9e6e-b4df3c5ca83d/bin/uautomizer-DrprNOufMa/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee582895-206a-41b7-9e6e-b4df3c5ca83d/bin/uautomizer-DrprNOufMa/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee582895-206a-41b7-9e6e-b4df3c5ca83d/bin/uautomizer-DrprNOufMa/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee582895-206a-41b7-9e6e-b4df3c5ca83d/bin/uautomizer-DrprNOufMa/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-usb-gspca-gspca_ov519.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee582895-206a-41b7-9e6e-b4df3c5ca83d/bin/uautomizer-DrprNOufMa/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee582895-206a-41b7-9e6e-b4df3c5ca83d/bin/uautomizer-DrprNOufMa --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 Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 0da9b2775f98d30f03d1fa5b2c7b9aebe5198411fc856f3ea3af31dd47dd5198 --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-12-06 18:41:44,716 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-06 18:41:44,717 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-06 18:41:44,748 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-06 18:41:44,748 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-06 18:41:44,749 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-06 18:41:44,751 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-06 18:41:44,752 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-06 18:41:44,754 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-06 18:41:44,754 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-06 18:41:44,755 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-06 18:41:44,756 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-06 18:41:44,757 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-06 18:41:44,758 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-06 18:41:44,759 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-06 18:41:44,760 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-06 18:41:44,760 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-06 18:41:44,761 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-06 18:41:44,763 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-06 18:41:44,765 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-06 18:41:44,767 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-06 18:41:44,768 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-06 18:41:44,769 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-06 18:41:44,770 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-06 18:41:44,772 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-06 18:41:44,773 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-06 18:41:44,773 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-06 18:41:44,774 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-06 18:41:44,774 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-06 18:41:44,775 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-06 18:41:44,775 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-06 18:41:44,776 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-06 18:41:44,776 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-06 18:41:44,777 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-06 18:41:44,777 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-06 18:41:44,778 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-06 18:41:44,778 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-06 18:41:44,778 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-06 18:41:44,778 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-06 18:41:44,779 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-06 18:41:44,779 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-06 18:41:44,780 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee582895-206a-41b7-9e6e-b4df3c5ca83d/bin/uautomizer-DrprNOufMa/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-12-06 18:41:44,798 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-06 18:41:44,798 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-06 18:41:44,799 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-06 18:41:44,799 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-06 18:41:44,799 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-06 18:41:44,799 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-06 18:41:44,800 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-06 18:41:44,800 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-06 18:41:44,800 INFO L138 SettingsManager]: * Use SBE=true [2021-12-06 18:41:44,800 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-06 18:41:44,800 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-06 18:41:44,800 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-06 18:41:44,800 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-06 18:41:44,801 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-06 18:41:44,801 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-06 18:41:44,801 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-06 18:41:44,801 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-06 18:41:44,801 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-06 18:41:44,801 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-06 18:41:44,801 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-06 18:41:44,801 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-06 18:41:44,801 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-06 18:41:44,802 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-06 18:41:44,802 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-06 18:41:44,802 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-06 18:41:44,802 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-06 18:41:44,802 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-06 18:41:44,802 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-06 18:41:44,802 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-06 18:41:44,802 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-06 18:41:44,803 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-06 18:41:44,803 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_ee582895-206a-41b7-9e6e-b4df3c5ca83d/bin/uautomizer-DrprNOufMa/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee582895-206a-41b7-9e6e-b4df3c5ca83d/bin/uautomizer-DrprNOufMa Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0da9b2775f98d30f03d1fa5b2c7b9aebe5198411fc856f3ea3af31dd47dd5198 [2021-12-06 18:41:44,977 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-06 18:41:44,993 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-06 18:41:44,995 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-06 18:41:44,995 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-06 18:41:44,996 INFO L275 PluginConnector]: CDTParser initialized [2021-12-06 18:41:44,997 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee582895-206a-41b7-9e6e-b4df3c5ca83d/bin/uautomizer-DrprNOufMa/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-usb-gspca-gspca_ov519.cil.i [2021-12-06 18:41:45,046 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee582895-206a-41b7-9e6e-b4df3c5ca83d/bin/uautomizer-DrprNOufMa/data/e39f60134/630c6f63be974a43885569595504afef/FLAGd974d5671 [2021-12-06 18:41:45,670 INFO L306 CDTParser]: Found 1 translation units. [2021-12-06 18:41:45,670 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee582895-206a-41b7-9e6e-b4df3c5ca83d/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-usb-gspca-gspca_ov519.cil.i [2021-12-06 18:41:45,697 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee582895-206a-41b7-9e6e-b4df3c5ca83d/bin/uautomizer-DrprNOufMa/data/e39f60134/630c6f63be974a43885569595504afef/FLAGd974d5671 [2021-12-06 18:41:46,042 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee582895-206a-41b7-9e6e-b4df3c5ca83d/bin/uautomizer-DrprNOufMa/data/e39f60134/630c6f63be974a43885569595504afef [2021-12-06 18:41:46,049 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-06 18:41:46,053 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-06 18:41:46,056 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-06 18:41:46,057 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-06 18:41:46,066 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-06 18:41:46,068 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 06:41:46" (1/1) ... [2021-12-06 18:41:46,071 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3b483b0a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:41:46, skipping insertion in model container [2021-12-06 18:41:46,071 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 06:41:46" (1/1) ... [2021-12-06 18:41:46,083 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-06 18:41:46,174 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-06 18:41:47,927 WARN L230 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_ee582895-206a-41b7-9e6e-b4df3c5ca83d/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-usb-gspca-gspca_ov519.cil.i[359877,359890] [2021-12-06 18:41:47,929 WARN L230 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_ee582895-206a-41b7-9e6e-b4df3c5ca83d/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-usb-gspca-gspca_ov519.cil.i[360046,360059] [2021-12-06 18:41:47,930 WARN L230 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_ee582895-206a-41b7-9e6e-b4df3c5ca83d/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-usb-gspca-gspca_ov519.cil.i[360213,360226] [2021-12-06 18:41:47,930 WARN L230 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_ee582895-206a-41b7-9e6e-b4df3c5ca83d/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-usb-gspca-gspca_ov519.cil.i[360381,360394] [2021-12-06 18:41:47,938 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-06 18:41:48,011 INFO L203 MainTranslator]: Completed pre-run [2021-12-06 18:41:48,274 WARN L230 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_ee582895-206a-41b7-9e6e-b4df3c5ca83d/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-usb-gspca-gspca_ov519.cil.i[359877,359890] [2021-12-06 18:41:48,275 WARN L230 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_ee582895-206a-41b7-9e6e-b4df3c5ca83d/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-usb-gspca-gspca_ov519.cil.i[360046,360059] [2021-12-06 18:41:48,275 WARN L230 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_ee582895-206a-41b7-9e6e-b4df3c5ca83d/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-usb-gspca-gspca_ov519.cil.i[360213,360226] [2021-12-06 18:41:48,275 WARN L230 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_ee582895-206a-41b7-9e6e-b4df3c5ca83d/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-usb-gspca-gspca_ov519.cil.i[360381,360394] [2021-12-06 18:41:48,278 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-06 18:41:48,399 INFO L208 MainTranslator]: Completed translation [2021-12-06 18:41:48,400 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:41:48 WrapperNode [2021-12-06 18:41:48,400 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-06 18:41:48,401 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-06 18:41:48,401 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-06 18:41:48,401 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-06 18:41:48,406 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:41:48" (1/1) ... [2021-12-06 18:41:48,477 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:41:48" (1/1) ... [2021-12-06 18:41:48,700 INFO L137 Inliner]: procedures = 290, calls = 5733, calls flagged for inlining = 124, calls inlined = 112, statements flattened = 8295 [2021-12-06 18:41:48,700 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-06 18:41:48,701 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-06 18:41:48,701 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-06 18:41:48,701 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-06 18:41:48,708 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:41:48" (1/1) ... [2021-12-06 18:41:48,708 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:41:48" (1/1) ... [2021-12-06 18:41:48,736 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:41:48" (1/1) ... [2021-12-06 18:41:48,736 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:41:48" (1/1) ... [2021-12-06 18:41:48,878 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:41:48" (1/1) ... [2021-12-06 18:41:48,901 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:41:48" (1/1) ... [2021-12-06 18:41:48,917 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:41:48" (1/1) ... [2021-12-06 18:41:48,943 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-06 18:41:48,944 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-06 18:41:48,944 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-06 18:41:48,944 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-06 18:41:48,945 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:41:48" (1/1) ... [2021-12-06 18:41:48,951 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-06 18:41:48,961 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee582895-206a-41b7-9e6e-b4df3c5ca83d/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 18:41:49,002 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee582895-206a-41b7-9e6e-b4df3c5ca83d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-06 18:41:49,009 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee582895-206a-41b7-9e6e-b4df3c5ca83d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-06 18:41:49,044 INFO L130 BoogieDeclarations]: Found specification of procedure setbrightness [2021-12-06 18:41:49,044 INFO L138 BoogieDeclarations]: Found implementation of procedure setbrightness [2021-12-06 18:41:49,044 INFO L130 BoogieDeclarations]: Found specification of procedure ov519_set_fr [2021-12-06 18:41:49,044 INFO L138 BoogieDeclarations]: Found implementation of procedure ov519_set_fr [2021-12-06 18:41:49,044 INFO L130 BoogieDeclarations]: Found specification of procedure w9968cf_write_sb [2021-12-06 18:41:49,044 INFO L138 BoogieDeclarations]: Found implementation of procedure w9968cf_write_sb [2021-12-06 18:41:49,045 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2021-12-06 18:41:49,045 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2021-12-06 18:41:49,045 INFO L130 BoogieDeclarations]: Found specification of procedure sd_isoc_init [2021-12-06 18:41:49,045 INFO L138 BoogieDeclarations]: Found implementation of procedure sd_isoc_init [2021-12-06 18:41:49,045 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-12-06 18:41:49,045 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-12-06 18:41:49,045 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-12-06 18:41:49,045 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-12-06 18:41:49,045 INFO L130 BoogieDeclarations]: Found specification of procedure usb_altnum_to_altsetting [2021-12-06 18:41:49,046 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_altnum_to_altsetting [2021-12-06 18:41:49,046 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-12-06 18:41:49,046 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-12-06 18:41:49,046 INFO L130 BoogieDeclarations]: Found specification of procedure ov51x_upload_quan_tables [2021-12-06 18:41:49,046 INFO L138 BoogieDeclarations]: Found implementation of procedure ov51x_upload_quan_tables [2021-12-06 18:41:49,046 INFO L130 BoogieDeclarations]: Found specification of procedure sd_start [2021-12-06 18:41:49,046 INFO L138 BoogieDeclarations]: Found implementation of procedure sd_start [2021-12-06 18:41:49,046 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-12-06 18:41:49,046 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-12-06 18:41:49,047 INFO L130 BoogieDeclarations]: Found specification of procedure gspca_frame_add [2021-12-06 18:41:49,047 INFO L138 BoogieDeclarations]: Found implementation of procedure gspca_frame_add [2021-12-06 18:41:49,047 INFO L130 BoogieDeclarations]: Found specification of procedure reg_w_mask [2021-12-06 18:41:49,047 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_w_mask [2021-12-06 18:41:49,047 INFO L130 BoogieDeclarations]: Found specification of procedure ov518_i2c_w [2021-12-06 18:41:49,047 INFO L138 BoogieDeclarations]: Found implementation of procedure ov518_i2c_w [2021-12-06 18:41:49,047 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-06 18:41:49,047 INFO L130 BoogieDeclarations]: Found specification of procedure input_event [2021-12-06 18:41:49,047 INFO L138 BoogieDeclarations]: Found implementation of procedure input_event [2021-12-06 18:41:49,048 INFO L130 BoogieDeclarations]: Found specification of procedure ov519_set_mode [2021-12-06 18:41:49,048 INFO L138 BoogieDeclarations]: Found implementation of procedure ov519_set_mode [2021-12-06 18:41:49,048 INFO L130 BoogieDeclarations]: Found specification of procedure ov51x_handle_button [2021-12-06 18:41:49,048 INFO L138 BoogieDeclarations]: Found implementation of procedure ov51x_handle_button [2021-12-06 18:41:49,048 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-06 18:41:49,048 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-12-06 18:41:49,048 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2021-12-06 18:41:49,048 INFO L130 BoogieDeclarations]: Found specification of procedure ov51x_stop [2021-12-06 18:41:49,048 INFO L138 BoogieDeclarations]: Found implementation of procedure ov51x_stop [2021-12-06 18:41:49,049 INFO L130 BoogieDeclarations]: Found specification of procedure w9968cf_smbus_stop [2021-12-06 18:41:49,049 INFO L138 BoogieDeclarations]: Found implementation of procedure w9968cf_smbus_stop [2021-12-06 18:41:49,049 INFO L130 BoogieDeclarations]: Found specification of procedure usb_ifnum_to_if [2021-12-06 18:41:49,049 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_ifnum_to_if [2021-12-06 18:41:49,049 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_ctrl_new_std [2021-12-06 18:41:49,049 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_ctrl_new_std [2021-12-06 18:41:49,049 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-12-06 18:41:49,049 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-12-06 18:41:49,050 INFO L130 BoogieDeclarations]: Found specification of procedure sd_reset_snapshot [2021-12-06 18:41:49,050 INFO L138 BoogieDeclarations]: Found implementation of procedure sd_reset_snapshot [2021-12-06 18:41:49,050 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-06 18:41:49,050 INFO L130 BoogieDeclarations]: Found specification of procedure mode_init_ov_sensor_regs [2021-12-06 18:41:49,050 INFO L138 BoogieDeclarations]: Found implementation of procedure mode_init_ov_sensor_regs [2021-12-06 18:41:49,050 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-06 18:41:49,050 INFO L130 BoogieDeclarations]: Found specification of procedure w9968cf_smbus_read_ack [2021-12-06 18:41:49,050 INFO L138 BoogieDeclarations]: Found implementation of procedure w9968cf_smbus_read_ack [2021-12-06 18:41:49,050 INFO L130 BoogieDeclarations]: Found specification of procedure write_regvals [2021-12-06 18:41:49,051 INFO L138 BoogieDeclarations]: Found implementation of procedure write_regvals [2021-12-06 18:41:49,051 INFO L130 BoogieDeclarations]: Found specification of procedure ov518_reg_w32 [2021-12-06 18:41:49,051 INFO L138 BoogieDeclarations]: Found implementation of procedure ov518_reg_w32 [2021-12-06 18:41:49,051 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2021-12-06 18:41:49,051 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2021-12-06 18:41:49,051 INFO L130 BoogieDeclarations]: Found specification of procedure input_report_key [2021-12-06 18:41:49,051 INFO L138 BoogieDeclarations]: Found implementation of procedure input_report_key [2021-12-06 18:41:49,051 INFO L130 BoogieDeclarations]: Found specification of procedure write_i2c_regvals [2021-12-06 18:41:49,051 INFO L138 BoogieDeclarations]: Found implementation of procedure write_i2c_regvals [2021-12-06 18:41:49,052 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-12-06 18:41:49,052 INFO L130 BoogieDeclarations]: Found specification of procedure w9968cf_smbus_write_byte [2021-12-06 18:41:49,052 INFO L138 BoogieDeclarations]: Found implementation of procedure w9968cf_smbus_write_byte [2021-12-06 18:41:49,052 INFO L130 BoogieDeclarations]: Found specification of procedure sd_g_volatile_ctrl [2021-12-06 18:41:49,052 INFO L138 BoogieDeclarations]: Found implementation of procedure sd_g_volatile_ctrl [2021-12-06 18:41:49,052 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-12-06 18:41:49,052 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2021-12-06 18:41:49,052 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2021-12-06 18:41:49,052 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_ctrl_grab [2021-12-06 18:41:49,053 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_ctrl_grab [2021-12-06 18:41:49,053 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-06 18:41:49,053 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_instance_release_2_4 [2021-12-06 18:41:49,053 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_instance_release_2_4 [2021-12-06 18:41:49,053 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-12-06 18:41:49,053 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-12-06 18:41:49,053 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2021-12-06 18:41:49,053 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2021-12-06 18:41:49,053 INFO L130 BoogieDeclarations]: Found specification of procedure sd_init [2021-12-06 18:41:49,053 INFO L138 BoogieDeclarations]: Found implementation of procedure sd_init [2021-12-06 18:41:49,054 INFO L130 BoogieDeclarations]: Found specification of procedure init_ov_sensor [2021-12-06 18:41:49,054 INFO L138 BoogieDeclarations]: Found implementation of procedure init_ov_sensor [2021-12-06 18:41:49,054 INFO L130 BoogieDeclarations]: Found specification of procedure w9968cf_write_fsb [2021-12-06 18:41:49,054 INFO L138 BoogieDeclarations]: Found implementation of procedure w9968cf_write_fsb [2021-12-06 18:41:49,054 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-06 18:41:49,054 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_sd_driver_exit_6_2 [2021-12-06 18:41:49,054 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_sd_driver_exit_6_2 [2021-12-06 18:41:49,054 INFO L130 BoogieDeclarations]: Found specification of procedure input_sync [2021-12-06 18:41:49,054 INFO L138 BoogieDeclarations]: Found implementation of procedure input_sync [2021-12-06 18:41:49,055 INFO L130 BoogieDeclarations]: Found specification of procedure gspca_disconnect [2021-12-06 18:41:49,055 INFO L138 BoogieDeclarations]: Found implementation of procedure gspca_disconnect [2021-12-06 18:41:49,055 INFO L130 BoogieDeclarations]: Found specification of procedure w9968cf_smbus_start [2021-12-06 18:41:49,055 INFO L138 BoogieDeclarations]: Found implementation of procedure w9968cf_smbus_start [2021-12-06 18:41:49,055 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_ctrl_new_std_menu [2021-12-06 18:41:49,055 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_ctrl_new_std_menu [2021-12-06 18:41:49,055 INFO L130 BoogieDeclarations]: Found specification of procedure w9968cf_set_crop_window [2021-12-06 18:41:49,055 INFO L138 BoogieDeclarations]: Found implementation of procedure w9968cf_set_crop_window [2021-12-06 18:41:49,055 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2021-12-06 18:41:49,055 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2021-12-06 18:41:49,056 INFO L130 BoogieDeclarations]: Found specification of procedure ov51x_led_control [2021-12-06 18:41:49,056 INFO L138 BoogieDeclarations]: Found implementation of procedure ov51x_led_control [2021-12-06 18:41:49,056 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-06 18:41:49,056 INFO L130 BoogieDeclarations]: Found specification of procedure gspca_resume [2021-12-06 18:41:49,056 INFO L138 BoogieDeclarations]: Found implementation of procedure gspca_resume [2021-12-06 18:41:49,056 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2021-12-06 18:41:49,056 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2021-12-06 18:41:49,056 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2021-12-06 18:41:49,056 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2021-12-06 18:41:49,057 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-06 18:41:49,057 INFO L130 BoogieDeclarations]: Found specification of procedure i2c_w_mask [2021-12-06 18:41:49,057 INFO L138 BoogieDeclarations]: Found implementation of procedure i2c_w_mask [2021-12-06 18:41:49,057 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-12-06 18:41:49,057 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-12-06 18:41:49,057 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2021-12-06 18:41:49,057 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2021-12-06 18:41:49,057 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-06 18:41:49,057 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2021-12-06 18:41:49,058 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2021-12-06 18:41:49,058 INFO L130 BoogieDeclarations]: Found specification of procedure usb_control_msg [2021-12-06 18:41:49,058 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_control_msg [2021-12-06 18:41:49,058 INFO L130 BoogieDeclarations]: Found specification of procedure sd_stopN [2021-12-06 18:41:49,058 INFO L138 BoogieDeclarations]: Found implementation of procedure sd_stopN [2021-12-06 18:41:49,058 INFO L130 BoogieDeclarations]: Found specification of procedure sd_s_ctrl [2021-12-06 18:41:49,058 INFO L138 BoogieDeclarations]: Found implementation of procedure sd_s_ctrl [2021-12-06 18:41:49,058 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_ctrl_g_ctrl [2021-12-06 18:41:49,058 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_ctrl_g_ctrl [2021-12-06 18:41:49,059 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2021-12-06 18:41:49,059 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2021-12-06 18:41:49,059 INFO L130 BoogieDeclarations]: Found specification of procedure sd_stop0 [2021-12-06 18:41:49,059 INFO L138 BoogieDeclarations]: Found implementation of procedure sd_stop0 [2021-12-06 18:41:49,059 INFO L130 BoogieDeclarations]: Found specification of procedure ov51x_restart [2021-12-06 18:41:49,059 INFO L138 BoogieDeclarations]: Found implementation of procedure ov51x_restart [2021-12-06 18:41:49,059 INFO L130 BoogieDeclarations]: Found specification of procedure i2c_w [2021-12-06 18:41:49,059 INFO L138 BoogieDeclarations]: Found implementation of procedure i2c_w [2021-12-06 18:41:49,059 INFO L130 BoogieDeclarations]: Found specification of procedure i2c_r [2021-12-06 18:41:49,059 INFO L138 BoogieDeclarations]: Found implementation of procedure i2c_r [2021-12-06 18:41:49,060 INFO L130 BoogieDeclarations]: Found specification of procedure reg_r8 [2021-12-06 18:41:49,060 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_r8 [2021-12-06 18:41:49,060 INFO L130 BoogieDeclarations]: Found specification of procedure sd_init_controls [2021-12-06 18:41:49,060 INFO L138 BoogieDeclarations]: Found implementation of procedure sd_init_controls [2021-12-06 18:41:49,060 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-06 18:41:49,060 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_ctrl_auto_cluster [2021-12-06 18:41:49,060 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_ctrl_auto_cluster [2021-12-06 18:41:49,060 INFO L130 BoogieDeclarations]: Found specification of procedure reg_r [2021-12-06 18:41:49,060 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_r [2021-12-06 18:41:49,060 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2021-12-06 18:41:49,061 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2021-12-06 18:41:49,061 INFO L130 BoogieDeclarations]: Found specification of procedure w9968cf_read_sb [2021-12-06 18:41:49,061 INFO L138 BoogieDeclarations]: Found implementation of procedure w9968cf_read_sb [2021-12-06 18:41:49,061 INFO L130 BoogieDeclarations]: Found specification of procedure reg_w [2021-12-06 18:41:49,061 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_w [2021-12-06 18:41:49,061 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-06 18:41:49,061 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-06 18:41:49,593 INFO L236 CfgBuilder]: Building ICFG [2021-12-06 18:41:49,595 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-06 18:41:59,280 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-12-06 18:46:02,402 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-12-06 18:46:02,579 INFO L277 CfgBuilder]: Performing block encoding [2021-12-06 18:46:02,596 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-06 18:46:02,597 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-12-06 18:46:02,600 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 06:46:02 BoogieIcfgContainer [2021-12-06 18:46:02,600 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-06 18:46:02,601 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-06 18:46:02,601 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-06 18:46:02,604 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-06 18:46:02,604 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.12 06:41:46" (1/3) ... [2021-12-06 18:46:02,605 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60177009 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 06:46:02, skipping insertion in model container [2021-12-06 18:46:02,605 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:41:48" (2/3) ... [2021-12-06 18:46:02,605 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60177009 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 06:46:02, skipping insertion in model container [2021-12-06 18:46:02,606 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 06:46:02" (3/3) ... [2021-12-06 18:46:02,607 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-usb-gspca-gspca_ov519.cil.i [2021-12-06 18:46:02,612 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-06 18:46:02,612 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-06 18:46:02,655 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-06 18:46:02,660 INFO L339 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=PETRI_NET, 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, mLoopAccelerationTechnique=FAST_UPR [2021-12-06 18:46:02,660 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-06 18:46:02,720 INFO L276 IsEmpty]: Start isEmpty. Operand has 2126 states, 1431 states have (on average 1.443046820405311) internal successors, (2065), 1534 states have internal predecessors, (2065), 623 states have call successors, (623), 72 states have call predecessors, (623), 71 states have return successors, (616), 547 states have call predecessors, (616), 616 states have call successors, (616) [2021-12-06 18:46:02,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2021-12-06 18:46:02,737 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 18:46:02,737 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 9, 9, 9, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 18:46:02,738 INFO L402 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_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 18:46:02,743 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:46:02,744 INFO L85 PathProgramCache]: Analyzing trace with hash -1932811021, now seen corresponding path program 1 times [2021-12-06 18:46:02,751 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:46:02,751 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1140439269] [2021-12-06 18:46:02,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:46:02,752 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:46:03,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:46:03,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-06 18:46:03,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:46:03,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 18:46:03,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:46:03,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-06 18:46:03,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:46:03,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 18:46:03,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:46:03,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-06 18:46:03,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:46:03,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 18:46:03,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:46:03,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-06 18:46:03,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:46:03,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 18:46:03,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:46:03,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-06 18:46:03,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:46:03,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 18:46:03,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:46:03,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-06 18:46:03,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:46:03,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 18:46:03,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:46:03,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-06 18:46:03,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:46:03,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 18:46:03,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:46:03,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-06 18:46:03,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:46:03,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 18:46:03,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:46:03,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-06 18:46:03,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:46:03,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 18:46:03,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:46:03,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-12-06 18:46:03,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:46:03,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2021-12-06 18:46:03,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:46:03,741 INFO L134 CoverageAnalysis]: Checked inductivity of 351 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 351 trivial. 0 not checked. [2021-12-06 18:46:03,742 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:46:03,742 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1140439269] [2021-12-06 18:46:03,743 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1140439269] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:46:03,743 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 18:46:03,743 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-06 18:46:03,745 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [53425542] [2021-12-06 18:46:03,745 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:46:03,749 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-06 18:46:03,750 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:46:03,775 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-06 18:46:03,776 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-06 18:46:03,783 INFO L87 Difference]: Start difference. First operand has 2126 states, 1431 states have (on average 1.443046820405311) internal successors, (2065), 1534 states have internal predecessors, (2065), 623 states have call successors, (623), 72 states have call predecessors, (623), 71 states have return successors, (616), 547 states have call predecessors, (616), 616 states have call successors, (616) Second operand has 4 states, 4 states have (on average 9.25) internal successors, (37), 3 states have internal predecessors, (37), 3 states have call successors, (14), 3 states have call predecessors, (14), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2021-12-06 18:46:06,435 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 18:46:08,623 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 18:46:10,983 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 18:46:13,014 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 18:46:14,214 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 18:46:15,622 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.41s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 18:46:17,659 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 18:46:21,109 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 18:46:23,859 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 18:46:28,845 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 18:46:33,470 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 18:46:36,631 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.47s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 18:46:50,162 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 18:46:50,163 INFO L93 Difference]: Finished difference Result 6971 states and 11235 transitions. [2021-12-06 18:46:50,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-06 18:46:50,167 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 3 states have internal predecessors, (37), 3 states have call successors, (14), 3 states have call predecessors, (14), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 129 [2021-12-06 18:46:50,168 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 18:46:50,244 INFO L225 Difference]: With dead ends: 6971 [2021-12-06 18:46:50,245 INFO L226 Difference]: Without dead ends: 4857 [2021-12-06 18:46:50,270 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-06 18:46:50,273 INFO L933 BasicCegarLoop]: 3712 mSDtfsCounter, 4909 mSDsluCounter, 4628 mSDsCounter, 0 mSdLazyCounter, 2462 mSolverCounterSat, 2311 mSolverCounterUnsat, 9 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 43.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5516 SdHoareTripleChecker+Valid, 8340 SdHoareTripleChecker+Invalid, 4782 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2311 IncrementalHoareTripleChecker+Valid, 2462 IncrementalHoareTripleChecker+Invalid, 9 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 45.6s IncrementalHoareTripleChecker+Time [2021-12-06 18:46:50,274 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5516 Valid, 8340 Invalid, 4782 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2311 Valid, 2462 Invalid, 9 Unknown, 0 Unchecked, 45.6s Time] [2021-12-06 18:46:50,293 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4857 states. [2021-12-06 18:46:50,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4857 to 4336. [2021-12-06 18:46:50,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4336 states, 2916 states have (on average 1.4519890260631) internal successors, (4234), 3119 states have internal predecessors, (4234), 1276 states have call successors, (1276), 135 states have call predecessors, (1276), 143 states have return successors, (1412), 1145 states have call predecessors, (1412), 1272 states have call successors, (1412) [2021-12-06 18:46:50,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4336 states to 4336 states and 6922 transitions. [2021-12-06 18:46:50,710 INFO L78 Accepts]: Start accepts. Automaton has 4336 states and 6922 transitions. Word has length 129 [2021-12-06 18:46:50,711 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 18:46:50,712 INFO L470 AbstractCegarLoop]: Abstraction has 4336 states and 6922 transitions. [2021-12-06 18:46:50,712 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 3 states have internal predecessors, (37), 3 states have call successors, (14), 3 states have call predecessors, (14), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2021-12-06 18:46:50,712 INFO L276 IsEmpty]: Start isEmpty. Operand 4336 states and 6922 transitions. [2021-12-06 18:46:50,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2021-12-06 18:46:50,756 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 18:46:50,756 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 9, 9, 9, 9, 9, 9, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 18:46:50,756 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-06 18:46:50,757 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 18:46:50,757 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:46:50,757 INFO L85 PathProgramCache]: Analyzing trace with hash 2106831023, now seen corresponding path program 1 times [2021-12-06 18:46:50,757 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:46:50,757 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1969138147] [2021-12-06 18:46:50,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:46:50,758 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:46:50,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:46:51,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-06 18:46:51,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:46:51,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 18:46:51,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:46:51,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-06 18:46:51,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:46:51,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 18:46:51,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:46:51,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-06 18:46:51,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:46:51,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 18:46:51,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:46:51,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-06 18:46:51,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:46:51,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 18:46:51,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:46:51,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-06 18:46:51,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:46:51,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 18:46:51,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:46:51,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-06 18:46:51,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:46:51,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 18:46:51,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:46:51,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-06 18:46:51,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:46:51,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 18:46:51,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:46:51,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-06 18:46:51,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:46:51,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 18:46:51,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:46:51,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-06 18:46:51,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:46:51,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 18:46:51,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:46:51,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-12-06 18:46:51,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:46:51,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2021-12-06 18:46:51,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:46:51,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2021-12-06 18:46:51,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:46:51,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2021-12-06 18:46:51,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:46:51,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2021-12-06 18:46:51,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:46:51,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 18:46:51,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:46:51,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2021-12-06 18:46:51,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:46:51,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2021-12-06 18:46:51,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:46:51,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2021-12-06 18:46:51,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:46:51,468 INFO L134 CoverageAnalysis]: Checked inductivity of 486 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 474 trivial. 0 not checked. [2021-12-06 18:46:51,468 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:46:51,468 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1969138147] [2021-12-06 18:46:51,468 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1969138147] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:46:51,468 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 18:46:51,468 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-06 18:46:51,468 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1865442305] [2021-12-06 18:46:51,468 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:46:51,470 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-06 18:46:51,470 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:46:51,470 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-06 18:46:51,470 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-06 18:46:51,470 INFO L87 Difference]: Start difference. First operand 4336 states and 6922 transitions. Second operand has 4 states, 4 states have (on average 16.75) internal successors, (67), 3 states have internal predecessors, (67), 3 states have call successors, (21), 3 states have call predecessors, (21), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2021-12-06 18:46:54,158 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 18:46:56,388 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 18:46:58,802 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 18:47:00,896 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 18:47:02,274 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.20s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 18:47:03,971 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.70s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 18:47:05,374 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.40s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 18:47:07,411 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 18:47:11,182 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 18:47:14,202 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 18:47:19,615 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 18:47:24,404 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 18:47:27,443 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.92s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 18:47:29,449 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.99s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 18:47:46,563 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 18:47:46,563 INFO L93 Difference]: Finished difference Result 9651 states and 15733 transitions. [2021-12-06 18:47:46,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-06 18:47:46,565 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.75) internal successors, (67), 3 states have internal predecessors, (67), 3 states have call successors, (21), 3 states have call predecessors, (21), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) Word has length 188 [2021-12-06 18:47:46,566 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 18:47:46,672 INFO L225 Difference]: With dead ends: 9651 [2021-12-06 18:47:46,673 INFO L226 Difference]: Without dead ends: 7126 [2021-12-06 18:47:46,693 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-06 18:47:46,694 INFO L933 BasicCegarLoop]: 5702 mSDtfsCounter, 3900 mSDsluCounter, 4868 mSDsCounter, 0 mSdLazyCounter, 2472 mSolverCounterSat, 1827 mSolverCounterUnsat, 9 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 51.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4504 SdHoareTripleChecker+Valid, 10570 SdHoareTripleChecker+Invalid, 4308 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1827 IncrementalHoareTripleChecker+Valid, 2472 IncrementalHoareTripleChecker+Invalid, 9 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 54.4s IncrementalHoareTripleChecker+Time [2021-12-06 18:47:46,695 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4504 Valid, 10570 Invalid, 4308 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1827 Valid, 2472 Invalid, 9 Unknown, 0 Unchecked, 54.4s Time] [2021-12-06 18:47:46,701 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7126 states. [2021-12-06 18:47:47,002 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7126 to 6135. [2021-12-06 18:47:47,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6135 states, 4143 states have (on average 1.448950036205648) internal successors, (6003), 4420 states have internal predecessors, (6003), 1784 states have call successors, (1784), 199 states have call predecessors, (1784), 207 states have return successors, (1926), 1605 states have call predecessors, (1926), 1780 states have call successors, (1926) [2021-12-06 18:47:47,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6135 states to 6135 states and 9713 transitions. [2021-12-06 18:47:47,053 INFO L78 Accepts]: Start accepts. Automaton has 6135 states and 9713 transitions. Word has length 188 [2021-12-06 18:47:47,053 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 18:47:47,054 INFO L470 AbstractCegarLoop]: Abstraction has 6135 states and 9713 transitions. [2021-12-06 18:47:47,054 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.75) internal successors, (67), 3 states have internal predecessors, (67), 3 states have call successors, (21), 3 states have call predecessors, (21), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2021-12-06 18:47:47,054 INFO L276 IsEmpty]: Start isEmpty. Operand 6135 states and 9713 transitions. [2021-12-06 18:47:47,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2021-12-06 18:47:47,077 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 18:47:47,077 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 9, 9, 9, 9, 9, 9, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 18:47:47,077 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-06 18:47:47,078 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 18:47:47,078 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:47:47,078 INFO L85 PathProgramCache]: Analyzing trace with hash -264908239, now seen corresponding path program 1 times [2021-12-06 18:47:47,078 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:47:47,078 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1518328184] [2021-12-06 18:47:47,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:47:47,078 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:47:47,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:47:47,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-06 18:47:47,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:47:47,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 18:47:47,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:47:47,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-06 18:47:47,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:47:47,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 18:47:47,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:47:47,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-06 18:47:47,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:47:47,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 18:47:47,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:47:47,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-06 18:47:47,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:47:47,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 18:47:47,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:47:47,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-06 18:47:47,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:47:47,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 18:47:47,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:47:47,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-06 18:47:47,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:47:47,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 18:47:47,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:47:47,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-06 18:47:47,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:47:47,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 18:47:47,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:47:47,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-06 18:47:47,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:47:47,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 18:47:47,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:47:47,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-06 18:47:47,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:47:47,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 18:47:47,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:47:47,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-12-06 18:47:47,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:47:47,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2021-12-06 18:47:47,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:47:47,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2021-12-06 18:47:47,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:47:47,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2021-12-06 18:47:47,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:47:47,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2021-12-06 18:47:47,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:47:47,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 18:47:47,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:47:47,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2021-12-06 18:47:47,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:47:47,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2021-12-06 18:47:47,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:47:47,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2021-12-06 18:47:47,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:47:47,842 INFO L134 CoverageAnalysis]: Checked inductivity of 486 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 486 trivial. 0 not checked. [2021-12-06 18:47:47,842 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:47:47,842 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1518328184] [2021-12-06 18:47:47,842 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1518328184] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:47:47,842 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 18:47:47,842 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-06 18:47:47,842 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1459385022] [2021-12-06 18:47:47,842 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:47:47,843 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-06 18:47:47,843 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:47:47,843 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-06 18:47:47,843 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-06 18:47:47,843 INFO L87 Difference]: Start difference. First operand 6135 states and 9713 transitions. Second operand has 6 states, 6 states have (on average 9.5) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (20), 4 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2021-12-06 18:47:50,802 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 18:47:53,133 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 18:47:55,657 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 18:47:57,726 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 18:47:59,556 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.46s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 18:48:01,534 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.98s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 18:48:02,838 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.29s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 18:48:04,699 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.86s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 18:48:06,750 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 18:48:11,712 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 18:48:16,745 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 18:48:30,063 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 18:48:38,676 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 18:48:53,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 18:48:53,387 INFO L93 Difference]: Finished difference Result 8058 states and 13174 transitions. [2021-12-06 18:48:53,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-06 18:48:53,388 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.5) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (20), 4 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 188 [2021-12-06 18:48:53,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 18:48:53,467 INFO L225 Difference]: With dead ends: 8058 [2021-12-06 18:48:53,467 INFO L226 Difference]: Without dead ends: 8056 [2021-12-06 18:48:53,476 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-12-06 18:48:53,477 INFO L933 BasicCegarLoop]: 3498 mSDtfsCounter, 4232 mSDsluCounter, 8491 mSDsCounter, 0 mSdLazyCounter, 3896 mSolverCounterSat, 1962 mSolverCounterUnsat, 9 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 60.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4655 SdHoareTripleChecker+Valid, 11989 SdHoareTripleChecker+Invalid, 5867 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1962 IncrementalHoareTripleChecker+Valid, 3896 IncrementalHoareTripleChecker+Invalid, 9 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 64.5s IncrementalHoareTripleChecker+Time [2021-12-06 18:48:53,477 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4655 Valid, 11989 Invalid, 5867 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1962 Valid, 3896 Invalid, 9 Unknown, 0 Unchecked, 64.5s Time] [2021-12-06 18:48:53,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8056 states. [2021-12-06 18:48:53,828 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8056 to 6619. [2021-12-06 18:48:53,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6619 states, 4498 states have (on average 1.4495331258337039) internal successors, (6520), 4797 states have internal predecessors, (6520), 1889 states have call successors, (1889), 229 states have call predecessors, (1889), 231 states have return successors, (1903), 1690 states have call predecessors, (1903), 1885 states have call successors, (1903) [2021-12-06 18:48:53,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6619 states to 6619 states and 10312 transitions. [2021-12-06 18:48:53,879 INFO L78 Accepts]: Start accepts. Automaton has 6619 states and 10312 transitions. Word has length 188 [2021-12-06 18:48:53,880 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 18:48:53,880 INFO L470 AbstractCegarLoop]: Abstraction has 6619 states and 10312 transitions. [2021-12-06 18:48:53,880 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.5) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (20), 4 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2021-12-06 18:48:53,880 INFO L276 IsEmpty]: Start isEmpty. Operand 6619 states and 10312 transitions. [2021-12-06 18:48:53,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2021-12-06 18:48:53,903 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 18:48:53,903 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 9, 9, 9, 9, 9, 9, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 18:48:53,903 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-06 18:48:53,903 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 18:48:53,903 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:48:53,904 INFO L85 PathProgramCache]: Analyzing trace with hash -711069716, now seen corresponding path program 1 times [2021-12-06 18:48:53,904 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:48:53,904 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1381410048] [2021-12-06 18:48:53,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:48:53,904 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:48:54,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:48:54,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-06 18:48:54,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:48:54,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 18:48:54,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:48:54,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-06 18:48:54,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:48:54,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 18:48:54,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:48:54,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-06 18:48:54,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:48:54,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 18:48:54,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:48:54,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-06 18:48:54,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:48:54,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 18:48:54,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:48:54,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-06 18:48:54,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:48:54,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 18:48:54,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:48:54,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-06 18:48:54,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:48:54,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 18:48:54,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:48:54,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-06 18:48:54,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:48:54,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 18:48:54,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:48:54,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-06 18:48:54,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:48:54,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 18:48:54,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:48:54,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-06 18:48:54,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:48:54,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 18:48:54,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:48:54,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-12-06 18:48:54,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:48:54,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2021-12-06 18:48:54,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:48:54,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2021-12-06 18:48:54,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:48:54,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2021-12-06 18:48:54,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:48:54,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2021-12-06 18:48:54,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:48:54,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 18:48:54,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:48:54,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2021-12-06 18:48:54,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:48:54,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2021-12-06 18:48:54,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:48:54,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2021-12-06 18:48:54,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:48:54,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2021-12-06 18:48:54,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:48:54,724 INFO L134 CoverageAnalysis]: Checked inductivity of 488 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 486 trivial. 0 not checked. [2021-12-06 18:48:54,724 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:48:54,724 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1381410048] [2021-12-06 18:48:54,725 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1381410048] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:48:54,725 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 18:48:54,725 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-06 18:48:54,725 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1293009917] [2021-12-06 18:48:54,725 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:48:54,726 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-06 18:48:54,726 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:48:54,726 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-06 18:48:54,726 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-06 18:48:54,726 INFO L87 Difference]: Start difference. First operand 6619 states and 10312 transitions. Second operand has 6 states, 6 states have (on average 10.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (21), 4 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2021-12-06 18:48:57,775 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 18:49:00,064 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 18:49:02,545 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 18:49:04,654 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 18:49:06,422 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.38s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 18:49:08,119 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.70s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 18:49:09,709 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.59s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 18:49:11,507 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.80s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 18:49:13,563 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 18:49:15,149 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.31s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 18:49:19,755 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 18:49:24,911 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 18:49:38,868 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 18:49:47,833 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 18:50:02,714 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 18:50:02,714 INFO L93 Difference]: Finished difference Result 8062 states and 13177 transitions. [2021-12-06 18:50:02,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-06 18:50:02,716 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (21), 4 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 193 [2021-12-06 18:50:02,716 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 18:50:02,786 INFO L225 Difference]: With dead ends: 8062 [2021-12-06 18:50:02,786 INFO L226 Difference]: Without dead ends: 8060 [2021-12-06 18:50:02,794 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-12-06 18:50:02,795 INFO L933 BasicCegarLoop]: 3497 mSDtfsCounter, 4226 mSDsluCounter, 8482 mSDsCounter, 0 mSdLazyCounter, 3896 mSolverCounterSat, 1962 mSolverCounterUnsat, 9 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 63.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4649 SdHoareTripleChecker+Valid, 11979 SdHoareTripleChecker+Invalid, 5867 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1962 IncrementalHoareTripleChecker+Valid, 3896 IncrementalHoareTripleChecker+Invalid, 9 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 66.9s IncrementalHoareTripleChecker+Time [2021-12-06 18:50:02,796 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4649 Valid, 11979 Invalid, 5867 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1962 Valid, 3896 Invalid, 9 Unknown, 0 Unchecked, 66.9s Time] [2021-12-06 18:50:02,805 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8060 states. [2021-12-06 18:50:03,135 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8060 to 6623. [2021-12-06 18:50:03,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6623 states, 4501 states have (on average 1.4492335036658521) internal successors, (6523), 4800 states have internal predecessors, (6523), 1889 states have call successors, (1889), 230 states have call predecessors, (1889), 232 states have return successors, (1903), 1690 states have call predecessors, (1903), 1885 states have call successors, (1903) [2021-12-06 18:50:03,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6623 states to 6623 states and 10315 transitions. [2021-12-06 18:50:03,183 INFO L78 Accepts]: Start accepts. Automaton has 6623 states and 10315 transitions. Word has length 193 [2021-12-06 18:50:03,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 18:50:03,183 INFO L470 AbstractCegarLoop]: Abstraction has 6623 states and 10315 transitions. [2021-12-06 18:50:03,183 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (21), 4 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2021-12-06 18:50:03,183 INFO L276 IsEmpty]: Start isEmpty. Operand 6623 states and 10315 transitions. [2021-12-06 18:50:03,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2021-12-06 18:50:03,207 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 18:50:03,207 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 9, 9, 9, 9, 9, 9, 5, 5, 5, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 18:50:03,207 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-06 18:50:03,207 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 18:50:03,207 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:50:03,208 INFO L85 PathProgramCache]: Analyzing trace with hash 798040500, now seen corresponding path program 1 times [2021-12-06 18:50:03,208 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:50:03,208 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [246416467] [2021-12-06 18:50:03,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:50:03,208 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:50:03,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:50:03,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-06 18:50:03,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:50:03,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 18:50:03,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:50:03,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-06 18:50:03,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:50:03,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 18:50:03,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:50:03,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-06 18:50:03,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:50:03,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 18:50:03,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:50:03,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-06 18:50:03,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:50:03,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 18:50:03,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:50:03,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-06 18:50:03,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:50:03,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 18:50:03,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:50:03,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-06 18:50:03,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:50:03,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 18:50:03,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:50:03,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-06 18:50:03,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:50:03,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 18:50:03,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:50:03,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-06 18:50:03,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:50:03,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 18:50:03,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:50:03,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-06 18:50:03,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:50:03,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 18:50:03,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:50:03,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-12-06 18:50:03,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:50:03,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2021-12-06 18:50:03,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:50:03,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2021-12-06 18:50:03,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:50:03,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2021-12-06 18:50:03,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:50:03,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2021-12-06 18:50:03,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:50:03,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 18:50:03,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:50:03,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2021-12-06 18:50:03,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:50:03,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2021-12-06 18:50:03,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:50:03,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2021-12-06 18:50:03,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:50:03,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2021-12-06 18:50:03,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:50:03,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 18:50:03,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:50:03,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2021-12-06 18:50:03,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:50:03,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2021-12-06 18:50:03,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:50:03,801 INFO L134 CoverageAnalysis]: Checked inductivity of 504 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 494 trivial. 0 not checked. [2021-12-06 18:50:03,801 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:50:03,801 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [246416467] [2021-12-06 18:50:03,802 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [246416467] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:50:03,802 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 18:50:03,802 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-06 18:50:03,802 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [856785936] [2021-12-06 18:50:03,802 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:50:03,802 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-06 18:50:03,802 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:50:03,803 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-06 18:50:03,803 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-06 18:50:03,803 INFO L87 Difference]: Start difference. First operand 6623 states and 10315 transitions. Second operand has 5 states, 5 states have (on average 14.6) internal successors, (73), 3 states have internal predecessors, (73), 3 states have call successors, (25), 4 states have call predecessors, (25), 1 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) [2021-12-06 18:50:07,383 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 18:50:09,842 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 18:50:12,368 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 18:50:14,531 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 18:50:17,690 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.55s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 18:50:18,955 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.26s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 18:50:21,164 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 18:50:26,605 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 18:50:28,836 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 18:50:34,008 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 18:50:36,163 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.15s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 18:50:38,708 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 18:50:43,086 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 18:50:45,135 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 18:50:53,588 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 18:51:01,773 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 18:51:06,896 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 18:51:08,427 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.52s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 18:51:12,392 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 18:51:36,997 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 18:51:42,696 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 18:51:44,819 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 18:52:01,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 18:52:01,073 INFO L93 Difference]: Finished difference Result 15168 states and 24420 transitions. [2021-12-06 18:52:01,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-06 18:52:01,076 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.6) internal successors, (73), 3 states have internal predecessors, (73), 3 states have call successors, (25), 4 states have call predecessors, (25), 1 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) Word has length 208 [2021-12-06 18:52:01,076 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 18:52:01,169 INFO L225 Difference]: With dead ends: 15168 [2021-12-06 18:52:01,170 INFO L226 Difference]: Without dead ends: 10356 [2021-12-06 18:52:01,200 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-12-06 18:52:01,200 INFO L933 BasicCegarLoop]: 5076 mSDtfsCounter, 5563 mSDsluCounter, 2492 mSDsCounter, 0 mSdLazyCounter, 6348 mSolverCounterSat, 4756 mSolverCounterUnsat, 17 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 108.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6057 SdHoareTripleChecker+Valid, 7568 SdHoareTripleChecker+Invalid, 11121 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4756 IncrementalHoareTripleChecker+Valid, 6348 IncrementalHoareTripleChecker+Invalid, 17 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 115.8s IncrementalHoareTripleChecker+Time [2021-12-06 18:52:01,201 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6057 Valid, 7568 Invalid, 11121 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4756 Valid, 6348 Invalid, 17 Unknown, 0 Unchecked, 115.8s Time] [2021-12-06 18:52:01,209 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10356 states. [2021-12-06 18:52:01,630 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10356 to 8423. [2021-12-06 18:52:01,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8423 states, 5729 states have (on average 1.4475475650200733) internal successors, (8293), 6102 states have internal predecessors, (8293), 2397 states have call successors, (2397), 294 states have call predecessors, (2397), 296 states have return successors, (2417), 2150 states have call predecessors, (2417), 2393 states have call successors, (2417) [2021-12-06 18:52:01,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8423 states to 8423 states and 13107 transitions. [2021-12-06 18:52:01,688 INFO L78 Accepts]: Start accepts. Automaton has 8423 states and 13107 transitions. Word has length 208 [2021-12-06 18:52:01,689 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 18:52:01,689 INFO L470 AbstractCegarLoop]: Abstraction has 8423 states and 13107 transitions. [2021-12-06 18:52:01,689 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.6) internal successors, (73), 3 states have internal predecessors, (73), 3 states have call successors, (25), 4 states have call predecessors, (25), 1 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) [2021-12-06 18:52:01,689 INFO L276 IsEmpty]: Start isEmpty. Operand 8423 states and 13107 transitions. [2021-12-06 18:52:01,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2021-12-06 18:52:01,709 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 18:52:01,709 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 9, 9, 9, 9, 9, 9, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 18:52:01,709 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-06 18:52:01,709 INFO L402 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_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 18:52:01,709 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:52:01,710 INFO L85 PathProgramCache]: Analyzing trace with hash -856209711, now seen corresponding path program 1 times [2021-12-06 18:52:01,710 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:52:01,710 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1545282583] [2021-12-06 18:52:01,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:52:01,710 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:52:01,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:52:02,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-06 18:52:02,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:52:02,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 18:52:02,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:52:02,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-06 18:52:02,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:52:02,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 18:52:02,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:52:02,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-06 18:52:02,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:52:02,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 18:52:02,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:52:02,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-06 18:52:02,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:52:02,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 18:52:02,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:52:02,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-06 18:52:02,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:52:02,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 18:52:02,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:52:02,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-06 18:52:02,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:52:02,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 18:52:02,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:52:02,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-06 18:52:02,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:52:02,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 18:52:02,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:52:02,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-06 18:52:02,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:52:02,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 18:52:02,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:52:02,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-06 18:52:02,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:52:02,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 18:52:02,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:52:02,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-12-06 18:52:02,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:52:02,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2021-12-06 18:52:02,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:52:02,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2021-12-06 18:52:02,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:52:02,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2021-12-06 18:52:02,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:52:02,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2021-12-06 18:52:02,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:52:02,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 18:52:02,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:52:02,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2021-12-06 18:52:02,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:52:02,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2021-12-06 18:52:02,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:52:02,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2021-12-06 18:52:02,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:52:02,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2021-12-06 18:52:02,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:52:02,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2021-12-06 18:52:02,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:52:02,473 INFO L134 CoverageAnalysis]: Checked inductivity of 494 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 490 trivial. 0 not checked. [2021-12-06 18:52:02,473 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:52:02,473 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1545282583] [2021-12-06 18:52:02,473 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1545282583] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:52:02,474 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 18:52:02,474 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-06 18:52:02,474 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1500322321] [2021-12-06 18:52:02,474 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:52:02,474 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-06 18:52:02,474 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:52:02,474 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-06 18:52:02,475 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-06 18:52:02,475 INFO L87 Difference]: Start difference. First operand 8423 states and 13107 transitions. Second operand has 6 states, 6 states have (on average 10.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (22), 4 states have call predecessors, (22), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2021-12-06 18:52:05,706 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 18:52:07,999 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 18:52:10,505 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 18:52:12,591 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 18:52:14,764 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.81s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 18:52:16,633 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.85s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 18:52:18,335 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.70s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 18:52:19,506 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.17s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 18:52:21,560 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 18:52:27,031 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 18:52:32,301 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 18:52:46,555 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 18:52:55,654 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 18:53:09,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 18:53:09,625 INFO L93 Difference]: Finished difference Result 10336 states and 16888 transitions. [2021-12-06 18:53:09,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-06 18:53:09,626 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (22), 4 states have call predecessors, (22), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 198 [2021-12-06 18:53:09,627 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 18:53:09,705 INFO L225 Difference]: With dead ends: 10336 [2021-12-06 18:53:09,705 INFO L226 Difference]: Without dead ends: 10334 [2021-12-06 18:53:09,714 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-12-06 18:53:09,715 INFO L933 BasicCegarLoop]: 3499 mSDtfsCounter, 4225 mSDsluCounter, 8487 mSDsCounter, 0 mSdLazyCounter, 3896 mSolverCounterSat, 1961 mSolverCounterUnsat, 9 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 62.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4648 SdHoareTripleChecker+Valid, 11986 SdHoareTripleChecker+Invalid, 5866 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1961 IncrementalHoareTripleChecker+Valid, 3896 IncrementalHoareTripleChecker+Invalid, 9 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 65.9s IncrementalHoareTripleChecker+Time [2021-12-06 18:53:09,715 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4648 Valid, 11986 Invalid, 5866 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1961 Valid, 3896 Invalid, 9 Unknown, 0 Unchecked, 65.9s Time] [2021-12-06 18:53:09,725 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10334 states. [2021-12-06 18:53:10,166 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10334 to 8427. [2021-12-06 18:53:10,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8427 states, 5732 states have (on average 1.4473133286810886) internal successors, (8296), 6105 states have internal predecessors, (8296), 2397 states have call successors, (2397), 295 states have call predecessors, (2397), 297 states have return successors, (2417), 2150 states have call predecessors, (2417), 2393 states have call successors, (2417) [2021-12-06 18:53:10,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8427 states to 8427 states and 13110 transitions. [2021-12-06 18:53:10,220 INFO L78 Accepts]: Start accepts. Automaton has 8427 states and 13110 transitions. Word has length 198 [2021-12-06 18:53:10,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 18:53:10,220 INFO L470 AbstractCegarLoop]: Abstraction has 8427 states and 13110 transitions. [2021-12-06 18:53:10,220 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (22), 4 states have call predecessors, (22), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2021-12-06 18:53:10,220 INFO L276 IsEmpty]: Start isEmpty. Operand 8427 states and 13110 transitions. [2021-12-06 18:53:10,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2021-12-06 18:53:10,234 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 18:53:10,235 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 9, 9, 9, 9, 9, 9, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 18:53:10,235 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-12-06 18:53:10,235 INFO L402 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_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 18:53:10,235 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:53:10,235 INFO L85 PathProgramCache]: Analyzing trace with hash -857305396, now seen corresponding path program 1 times [2021-12-06 18:53:10,235 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:53:10,235 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1746813026] [2021-12-06 18:53:10,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:53:10,235 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:53:10,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:53:10,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-06 18:53:10,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:53:10,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 18:53:10,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:53:10,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-06 18:53:10,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:53:10,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 18:53:10,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:53:10,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-06 18:53:10,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:53:10,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 18:53:10,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:53:10,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-06 18:53:10,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:53:10,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 18:53:10,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:53:10,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-06 18:53:10,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:53:10,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 18:53:10,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:53:10,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-06 18:53:10,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:53:10,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 18:53:10,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:53:10,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-06 18:53:10,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:53:10,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 18:53:10,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:53:10,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-06 18:53:10,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:53:10,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 18:53:10,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:53:10,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-06 18:53:10,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:53:10,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 18:53:10,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:53:10,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-12-06 18:53:10,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:53:10,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2021-12-06 18:53:10,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:53:10,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2021-12-06 18:53:10,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:53:10,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2021-12-06 18:53:10,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:53:10,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2021-12-06 18:53:10,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:53:10,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 18:53:10,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:53:10,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2021-12-06 18:53:10,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:53:10,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2021-12-06 18:53:10,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:53:10,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2021-12-06 18:53:10,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:53:10,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2021-12-06 18:53:10,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:53:10,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2021-12-06 18:53:10,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:53:10,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2021-12-06 18:53:10,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:53:10,984 INFO L134 CoverageAnalysis]: Checked inductivity of 504 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 498 trivial. 0 not checked. [2021-12-06 18:53:10,984 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:53:10,984 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1746813026] [2021-12-06 18:53:10,985 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1746813026] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:53:10,985 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 18:53:10,985 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-06 18:53:10,985 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [30762499] [2021-12-06 18:53:10,985 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:53:10,985 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-06 18:53:10,986 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:53:10,986 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-06 18:53:10,986 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-06 18:53:10,986 INFO L87 Difference]: Start difference. First operand 8427 states and 13110 transitions. Second operand has 6 states, 6 states have (on average 10.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (23), 4 states have call predecessors, (23), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2021-12-06 18:53:14,123 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 18:53:16,422 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 18:53:18,918 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 18:53:20,956 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 18:53:23,211 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.84s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 18:53:25,226 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 18:53:26,757 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.52s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 18:53:28,488 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.73s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 18:53:30,581 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 18:53:36,402 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 18:53:41,614 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 18:53:55,850 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 18:54:04,926 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 18:54:20,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 18:54:20,289 INFO L93 Difference]: Finished difference Result 10340 states and 16891 transitions. [2021-12-06 18:54:20,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-06 18:54:20,291 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (23), 4 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 203 [2021-12-06 18:54:20,291 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 18:54:20,349 INFO L225 Difference]: With dead ends: 10340 [2021-12-06 18:54:20,349 INFO L226 Difference]: Without dead ends: 10338 [2021-12-06 18:54:20,357 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-12-06 18:54:20,358 INFO L933 BasicCegarLoop]: 3499 mSDtfsCounter, 4225 mSDsluCounter, 8487 mSDsCounter, 0 mSdLazyCounter, 3895 mSolverCounterSat, 1960 mSolverCounterUnsat, 10 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 64.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4648 SdHoareTripleChecker+Valid, 11986 SdHoareTripleChecker+Invalid, 5865 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1960 IncrementalHoareTripleChecker+Valid, 3895 IncrementalHoareTripleChecker+Invalid, 10 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 68.0s IncrementalHoareTripleChecker+Time [2021-12-06 18:54:20,358 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4648 Valid, 11986 Invalid, 5865 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1960 Valid, 3895 Invalid, 10 Unknown, 0 Unchecked, 68.0s Time] [2021-12-06 18:54:20,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10338 states. [2021-12-06 18:54:20,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10338 to 8431. [2021-12-06 18:54:20,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8431 states, 5735 states have (on average 1.447079337401918) internal successors, (8299), 6108 states have internal predecessors, (8299), 2397 states have call successors, (2397), 296 states have call predecessors, (2397), 298 states have return successors, (2417), 2150 states have call predecessors, (2417), 2393 states have call successors, (2417) [2021-12-06 18:54:20,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8431 states to 8431 states and 13113 transitions. [2021-12-06 18:54:20,869 INFO L78 Accepts]: Start accepts. Automaton has 8431 states and 13113 transitions. Word has length 203 [2021-12-06 18:54:20,869 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 18:54:20,869 INFO L470 AbstractCegarLoop]: Abstraction has 8431 states and 13113 transitions. [2021-12-06 18:54:20,870 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (23), 4 states have call predecessors, (23), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2021-12-06 18:54:20,870 INFO L276 IsEmpty]: Start isEmpty. Operand 8431 states and 13113 transitions. [2021-12-06 18:54:20,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2021-12-06 18:54:20,885 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 18:54:20,885 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 9, 9, 9, 9, 9, 9, 5, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 18:54:20,885 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-12-06 18:54:20,885 INFO L402 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_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 18:54:20,886 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:54:20,886 INFO L85 PathProgramCache]: Analyzing trace with hash 1054417777, now seen corresponding path program 1 times [2021-12-06 18:54:20,886 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:54:20,886 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1556556350] [2021-12-06 18:54:20,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:54:20,886 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:54:20,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:54:21,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-06 18:54:21,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:54:21,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 18:54:21,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:54:21,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-06 18:54:21,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:54:21,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 18:54:21,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:54:21,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-06 18:54:21,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:54:21,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 18:54:21,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:54:21,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-06 18:54:21,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:54:21,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 18:54:21,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:54:21,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-06 18:54:21,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:54:21,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 18:54:21,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:54:21,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-06 18:54:21,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:54:21,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 18:54:21,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:54:21,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-06 18:54:21,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:54:21,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 18:54:21,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:54:21,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-06 18:54:21,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:54:21,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 18:54:21,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:54:21,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-06 18:54:21,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:54:21,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 18:54:21,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:54:21,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-12-06 18:54:21,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:54:21,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2021-12-06 18:54:21,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:54:21,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2021-12-06 18:54:21,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:54:21,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2021-12-06 18:54:21,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:54:21,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2021-12-06 18:54:21,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:54:21,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 18:54:21,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:54:21,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2021-12-06 18:54:21,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:54:21,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2021-12-06 18:54:21,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:54:21,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2021-12-06 18:54:21,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:54:21,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2021-12-06 18:54:21,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:54:21,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2021-12-06 18:54:21,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:54:21,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2021-12-06 18:54:21,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:54:21,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2021-12-06 18:54:21,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:54:21,562 INFO L134 CoverageAnalysis]: Checked inductivity of 518 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 510 trivial. 0 not checked. [2021-12-06 18:54:21,563 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:54:21,563 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1556556350] [2021-12-06 18:54:21,563 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1556556350] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:54:21,563 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 18:54:21,563 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-06 18:54:21,563 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1662844891] [2021-12-06 18:54:21,563 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:54:21,563 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-06 18:54:21,563 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:54:21,564 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-06 18:54:21,564 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-06 18:54:21,564 INFO L87 Difference]: Start difference. First operand 8431 states and 13113 transitions. Second operand has 6 states, 6 states have (on average 10.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (24), 4 states have call predecessors, (24), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2021-12-06 18:54:24,776 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 18:54:27,077 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 18:54:29,590 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 18:54:31,668 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 18:54:33,271 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 18:54:34,493 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 18:54:35,899 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.40s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 18:54:37,194 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.30s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 18:54:39,246 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 18:54:40,608 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 18:54:45,275 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 18:54:50,543 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 18:55:05,159 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 18:55:14,089 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 18:55:29,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 18:55:29,957 INFO L93 Difference]: Finished difference Result 10344 states and 16894 transitions. [2021-12-06 18:55:29,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-06 18:55:29,957 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (24), 4 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 208 [2021-12-06 18:55:29,958 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 18:55:30,021 INFO L225 Difference]: With dead ends: 10344 [2021-12-06 18:55:30,021 INFO L226 Difference]: Without dead ends: 10340 [2021-12-06 18:55:30,029 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-12-06 18:55:30,029 INFO L933 BasicCegarLoop]: 3493 mSDtfsCounter, 4225 mSDsluCounter, 8470 mSDsCounter, 0 mSdLazyCounter, 3896 mSolverCounterSat, 1960 mSolverCounterUnsat, 9 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 63.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4653 SdHoareTripleChecker+Valid, 11963 SdHoareTripleChecker+Invalid, 5865 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1960 IncrementalHoareTripleChecker+Valid, 3896 IncrementalHoareTripleChecker+Invalid, 9 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 66.9s IncrementalHoareTripleChecker+Time [2021-12-06 18:55:30,030 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4653 Valid, 11963 Invalid, 5865 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1960 Valid, 3896 Invalid, 9 Unknown, 0 Unchecked, 66.9s Time] [2021-12-06 18:55:30,038 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10340 states. [2021-12-06 18:55:30,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10340 to 8433. [2021-12-06 18:55:30,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8433 states, 5737 states have (on average 1.4467491720411365) internal successors, (8300), 6109 states have internal predecessors, (8300), 2397 states have call successors, (2397), 297 states have call predecessors, (2397), 298 states have return successors, (2417), 2150 states have call predecessors, (2417), 2393 states have call successors, (2417) [2021-12-06 18:55:30,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8433 states to 8433 states and 13114 transitions. [2021-12-06 18:55:30,550 INFO L78 Accepts]: Start accepts. Automaton has 8433 states and 13114 transitions. Word has length 208 [2021-12-06 18:55:30,550 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 18:55:30,550 INFO L470 AbstractCegarLoop]: Abstraction has 8433 states and 13114 transitions. [2021-12-06 18:55:30,550 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (24), 4 states have call predecessors, (24), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2021-12-06 18:55:30,550 INFO L276 IsEmpty]: Start isEmpty. Operand 8433 states and 13114 transitions. [2021-12-06 18:55:30,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2021-12-06 18:55:30,568 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 18:55:30,568 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 9, 9, 9, 9, 9, 9, 6, 5, 5, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 18:55:30,568 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-12-06 18:55:30,569 INFO L402 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_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 18:55:30,569 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:55:30,569 INFO L85 PathProgramCache]: Analyzing trace with hash -619723348, now seen corresponding path program 1 times [2021-12-06 18:55:30,569 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:55:30,569 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [467117540] [2021-12-06 18:55:30,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:55:30,569 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:55:30,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:55:31,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-06 18:55:31,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:55:31,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 18:55:31,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:55:31,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-06 18:55:31,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:55:31,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 18:55:31,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:55:31,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-06 18:55:31,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:55:31,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 18:55:31,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:55:31,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-06 18:55:31,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:55:31,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 18:55:31,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:55:31,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-06 18:55:31,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:55:31,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 18:55:31,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:55:31,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-06 18:55:31,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:55:31,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 18:55:31,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:55:31,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-06 18:55:31,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:55:31,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 18:55:31,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:55:31,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-06 18:55:31,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:55:31,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 18:55:31,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:55:31,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-06 18:55:31,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:55:31,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 18:55:31,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:55:31,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-12-06 18:55:31,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:55:31,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2021-12-06 18:55:31,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:55:31,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2021-12-06 18:55:31,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:55:31,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2021-12-06 18:55:31,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:55:31,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2021-12-06 18:55:31,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:55:31,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 18:55:31,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:55:31,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2021-12-06 18:55:31,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:55:31,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2021-12-06 18:55:31,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:55:31,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2021-12-06 18:55:31,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:55:31,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2021-12-06 18:55:31,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:55:31,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2021-12-06 18:55:31,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:55:31,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2021-12-06 18:55:31,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:55:31,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2021-12-06 18:55:31,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:55:31,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2021-12-06 18:55:31,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:55:31,312 INFO L134 CoverageAnalysis]: Checked inductivity of 536 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 526 trivial. 0 not checked. [2021-12-06 18:55:31,312 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:55:31,312 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [467117540] [2021-12-06 18:55:31,312 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [467117540] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:55:31,312 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 18:55:31,312 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-06 18:55:31,312 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1661976958] [2021-12-06 18:55:31,312 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:55:31,313 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-06 18:55:31,313 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:55:31,313 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-06 18:55:31,313 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-06 18:55:31,313 INFO L87 Difference]: Start difference. First operand 8433 states and 13114 transitions. Second operand has 6 states, 6 states have (on average 10.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (25), 4 states have call predecessors, (25), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2021-12-06 18:55:34,591 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 18:55:36,935 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 18:55:39,421 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 18:55:41,511 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 18:55:43,510 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.59s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 18:55:45,252 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.73s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 18:55:46,648 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.40s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 18:55:48,084 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.44s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []