./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-sis-sis900.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 63182f13 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4085a7e5-c3d6-4b54-9700-82bcc88bc5b4/bin/uautomizer-YU5uOKAj3y/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4085a7e5-c3d6-4b54-9700-82bcc88bc5b4/bin/uautomizer-YU5uOKAj3y/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4085a7e5-c3d6-4b54-9700-82bcc88bc5b4/bin/uautomizer-YU5uOKAj3y/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4085a7e5-c3d6-4b54-9700-82bcc88bc5b4/bin/uautomizer-YU5uOKAj3y/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-sis-sis900.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4085a7e5-c3d6-4b54-9700-82bcc88bc5b4/bin/uautomizer-YU5uOKAj3y/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4085a7e5-c3d6-4b54-9700-82bcc88bc5b4/bin/uautomizer-YU5uOKAj3y --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 82e959473290e80a4f353bcd3c2747bafa4ce239975e14e29f8e5bf5eff4b01b --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-13 18:49:29,700 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-13 18:49:29,703 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-13 18:49:29,761 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-13 18:49:29,762 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-13 18:49:29,767 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-13 18:49:29,771 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-13 18:49:29,776 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-13 18:49:29,778 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-13 18:49:29,786 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-13 18:49:29,787 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-13 18:49:29,789 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-13 18:49:29,789 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-13 18:49:29,792 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-13 18:49:29,794 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-13 18:49:29,801 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-13 18:49:29,803 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-13 18:49:29,804 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-13 18:49:29,811 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-13 18:49:29,818 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-13 18:49:29,821 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-13 18:49:29,823 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-13 18:49:29,826 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-13 18:49:29,828 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-13 18:49:29,833 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-13 18:49:29,834 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-13 18:49:29,834 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-13 18:49:29,836 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-13 18:49:29,837 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-13 18:49:29,839 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-13 18:49:29,839 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-13 18:49:29,840 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-13 18:49:29,842 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-13 18:49:29,843 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-13 18:49:29,845 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-13 18:49:29,845 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-13 18:49:29,846 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-13 18:49:29,847 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-13 18:49:29,847 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-13 18:49:29,848 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-13 18:49:29,849 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-13 18:49:29,850 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4085a7e5-c3d6-4b54-9700-82bcc88bc5b4/bin/uautomizer-YU5uOKAj3y/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-13 18:49:29,892 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-13 18:49:29,893 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-13 18:49:29,893 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-13 18:49:29,901 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-13 18:49:29,902 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-13 18:49:29,902 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-13 18:49:29,903 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-13 18:49:29,903 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-13 18:49:29,903 INFO L138 SettingsManager]: * Use SBE=true [2021-11-13 18:49:29,904 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-13 18:49:29,905 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-13 18:49:29,906 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-13 18:49:29,906 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-13 18:49:29,906 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-13 18:49:29,906 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-13 18:49:29,907 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-13 18:49:29,907 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-13 18:49:29,907 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-13 18:49:29,907 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-13 18:49:29,908 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-13 18:49:29,908 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-13 18:49:29,908 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-13 18:49:29,909 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-13 18:49:29,909 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-13 18:49:29,909 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-13 18:49:29,909 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-13 18:49:29,910 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-13 18:49:29,910 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-13 18:49:29,910 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-13 18:49:29,912 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-13 18:49:29,913 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-13 18:49:29,913 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_4085a7e5-c3d6-4b54-9700-82bcc88bc5b4/bin/uautomizer-YU5uOKAj3y/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4085a7e5-c3d6-4b54-9700-82bcc88bc5b4/bin/uautomizer-YU5uOKAj3y Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 82e959473290e80a4f353bcd3c2747bafa4ce239975e14e29f8e5bf5eff4b01b [2021-11-13 18:49:30,197 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-13 18:49:30,222 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-13 18:49:30,225 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-13 18:49:30,226 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-13 18:49:30,227 INFO L275 PluginConnector]: CDTParser initialized [2021-11-13 18:49:30,229 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4085a7e5-c3d6-4b54-9700-82bcc88bc5b4/bin/uautomizer-YU5uOKAj3y/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-sis-sis900.cil.i [2021-11-13 18:49:30,315 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4085a7e5-c3d6-4b54-9700-82bcc88bc5b4/bin/uautomizer-YU5uOKAj3y/data/366b6372e/2e96c83994f245a0b5845bc9df4ee9c3/FLAGd8fc12a2d [2021-11-13 18:49:31,456 INFO L306 CDTParser]: Found 1 translation units. [2021-11-13 18:49:31,457 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4085a7e5-c3d6-4b54-9700-82bcc88bc5b4/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-sis-sis900.cil.i [2021-11-13 18:49:31,525 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4085a7e5-c3d6-4b54-9700-82bcc88bc5b4/bin/uautomizer-YU5uOKAj3y/data/366b6372e/2e96c83994f245a0b5845bc9df4ee9c3/FLAGd8fc12a2d [2021-11-13 18:49:31,753 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4085a7e5-c3d6-4b54-9700-82bcc88bc5b4/bin/uautomizer-YU5uOKAj3y/data/366b6372e/2e96c83994f245a0b5845bc9df4ee9c3 [2021-11-13 18:49:31,756 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-13 18:49:31,758 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-13 18:49:31,760 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-13 18:49:31,760 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-13 18:49:31,765 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-13 18:49:31,766 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 06:49:31" (1/1) ... [2021-11-13 18:49:31,767 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@295ef0cf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:49:31, skipping insertion in model container [2021-11-13 18:49:31,767 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 06:49:31" (1/1) ... [2021-11-13 18:49:31,776 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-13 18:49:31,939 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-13 18:49:35,646 WARN L228 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_4085a7e5-c3d6-4b54-9700-82bcc88bc5b4/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-sis-sis900.cil.i[343367,343380] [2021-11-13 18:49:35,650 WARN L228 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_4085a7e5-c3d6-4b54-9700-82bcc88bc5b4/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-sis-sis900.cil.i[343536,343549] [2021-11-13 18:49:35,651 WARN L228 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_4085a7e5-c3d6-4b54-9700-82bcc88bc5b4/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-sis-sis900.cil.i[343703,343716] [2021-11-13 18:49:35,651 WARN L228 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_4085a7e5-c3d6-4b54-9700-82bcc88bc5b4/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-sis-sis900.cil.i[343871,343884] [2021-11-13 18:49:35,673 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 18:49:35,735 INFO L203 MainTranslator]: Completed pre-run [2021-11-13 18:49:36,213 WARN L228 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_4085a7e5-c3d6-4b54-9700-82bcc88bc5b4/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-sis-sis900.cil.i[343367,343380] [2021-11-13 18:49:36,214 WARN L228 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_4085a7e5-c3d6-4b54-9700-82bcc88bc5b4/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-sis-sis900.cil.i[343536,343549] [2021-11-13 18:49:36,215 WARN L228 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_4085a7e5-c3d6-4b54-9700-82bcc88bc5b4/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-sis-sis900.cil.i[343703,343716] [2021-11-13 18:49:36,215 WARN L228 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_4085a7e5-c3d6-4b54-9700-82bcc88bc5b4/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-sis-sis900.cil.i[343871,343884] [2021-11-13 18:49:36,262 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 18:49:36,562 INFO L208 MainTranslator]: Completed translation [2021-11-13 18:49:36,563 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:49:36 WrapperNode [2021-11-13 18:49:36,564 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-13 18:49:36,565 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-13 18:49:36,565 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-13 18:49:36,566 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-13 18:49:36,575 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:49:36" (1/1) ... [2021-11-13 18:49:36,718 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:49:36" (1/1) ... [2021-11-13 18:49:37,015 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-13 18:49:37,016 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-13 18:49:37,017 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-13 18:49:37,017 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-13 18:49:37,027 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:49:36" (1/1) ... [2021-11-13 18:49:37,027 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:49:36" (1/1) ... [2021-11-13 18:49:37,062 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:49:36" (1/1) ... [2021-11-13 18:49:37,063 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:49:36" (1/1) ... [2021-11-13 18:49:37,168 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:49:36" (1/1) ... [2021-11-13 18:49:37,195 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:49:36" (1/1) ... [2021-11-13 18:49:37,226 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:49:36" (1/1) ... [2021-11-13 18:49:37,255 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-13 18:49:37,256 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-13 18:49:37,257 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-13 18:49:37,257 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-13 18:49:37,258 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:49:36" (1/1) ... [2021-11-13 18:49:37,266 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-13 18:49:37,277 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4085a7e5-c3d6-4b54-9700-82bcc88bc5b4/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 18:49:37,290 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4085a7e5-c3d6-4b54-9700-82bcc88bc5b4/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-13 18:49:37,310 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4085a7e5-c3d6-4b54-9700-82bcc88bc5b4/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-13 18:49:37,343 INFO L130 BoogieDeclarations]: Found specification of procedure sis900_init_rxfilter [2021-11-13 18:49:37,343 INFO L138 BoogieDeclarations]: Found implementation of procedure sis900_init_rxfilter [2021-11-13 18:49:37,343 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_write [2021-11-13 18:49:37,343 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_write [2021-11-13 18:49:37,343 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2021-11-13 18:49:37,343 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2021-11-13 18:49:37,344 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-11-13 18:49:37,344 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-11-13 18:49:37,344 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_alloc_skb [2021-11-13 18:49:37,344 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_alloc_skb [2021-11-13 18:49:37,344 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2021-11-13 18:49:37,344 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2021-11-13 18:49:37,344 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-13 18:49:37,345 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-13 18:49:37,345 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2021-11-13 18:49:37,345 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2021-11-13 18:49:37,345 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_ok [2021-11-13 18:49:37,346 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_ok [2021-11-13 18:49:37,346 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2021-11-13 18:49:37,346 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2021-11-13 18:49:37,346 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_on [2021-11-13 18:49:37,346 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_on [2021-11-13 18:49:37,346 INFO L130 BoogieDeclarations]: Found specification of procedure sis900_default_phy [2021-11-13 18:49:37,347 INFO L138 BoogieDeclarations]: Found implementation of procedure sis900_default_phy [2021-11-13 18:49:37,347 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite8 [2021-11-13 18:49:37,347 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite8 [2021-11-13 18:49:37,347 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irq_75 [2021-11-13 18:49:37,347 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irq_75 [2021-11-13 18:49:37,347 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_66 [2021-11-13 18:49:37,347 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_66 [2021-11-13 18:49:37,348 INFO L130 BoogieDeclarations]: Found specification of procedure ioread32 [2021-11-13 18:49:37,348 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread32 [2021-11-13 18:49:37,348 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2021-11-13 18:49:37,348 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2021-11-13 18:49:37,348 INFO L130 BoogieDeclarations]: Found specification of procedure sis900_check_mode [2021-11-13 18:49:37,348 INFO L138 BoogieDeclarations]: Found implementation of procedure sis900_check_mode [2021-11-13 18:49:37,348 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2021-11-13 18:49:37,349 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2021-11-13 18:49:37,349 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-11-13 18:49:37,349 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2021-11-13 18:49:37,349 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2021-11-13 18:49:37,349 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2021-11-13 18:49:37,349 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite32 [2021-11-13 18:49:37,349 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite32 [2021-11-13 18:49:37,350 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2021-11-13 18:49:37,350 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2021-11-13 18:49:37,350 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-11-13 18:49:37,351 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-11-13 18:49:37,351 INFO L130 BoogieDeclarations]: Found specification of procedure sis900_remove [2021-11-13 18:49:37,351 INFO L138 BoogieDeclarations]: Found implementation of procedure sis900_remove [2021-11-13 18:49:37,351 INFO L130 BoogieDeclarations]: Found specification of procedure sis630_set_eq [2021-11-13 18:49:37,352 INFO L138 BoogieDeclarations]: Found implementation of procedure sis630_set_eq [2021-11-13 18:49:37,353 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_device [2021-11-13 18:49:37,353 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_device [2021-11-13 18:49:37,353 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2021-11-13 18:49:37,354 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2021-11-13 18:49:37,354 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-13 18:49:37,354 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_sis900_cleanup_module_14_2 [2021-11-13 18:49:37,354 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_sis900_cleanup_module_14_2 [2021-11-13 18:49:37,355 INFO L130 BoogieDeclarations]: Found specification of procedure sis900_init_tx_ring [2021-11-13 18:49:37,355 INFO L138 BoogieDeclarations]: Found implementation of procedure sis900_init_tx_ring [2021-11-13 18:49:37,355 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2021-11-13 18:49:37,356 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2021-11-13 18:49:37,356 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_lock_of_sis900_private [2021-11-13 18:49:37,356 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_lock_of_sis900_private [2021-11-13 18:49:37,356 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2021-11-13 18:49:37,357 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2021-11-13 18:49:37,357 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2021-11-13 18:49:37,357 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2021-11-13 18:49:37,357 INFO L130 BoogieDeclarations]: Found specification of procedure sis900_set_mode [2021-11-13 18:49:37,357 INFO L138 BoogieDeclarations]: Found implementation of procedure sis900_set_mode [2021-11-13 18:49:37,357 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-13 18:49:37,358 INFO L130 BoogieDeclarations]: Found specification of procedure set_rx_mode [2021-11-13 18:49:37,358 INFO L138 BoogieDeclarations]: Found implementation of procedure set_rx_mode [2021-11-13 18:49:37,359 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_lock_of_sis900_private [2021-11-13 18:49:37,359 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_lock_of_sis900_private [2021-11-13 18:49:37,359 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2021-11-13 18:49:37,359 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2021-11-13 18:49:37,359 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2021-11-13 18:49:37,359 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2021-11-13 18:49:37,359 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2021-11-13 18:49:37,360 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2021-11-13 18:49:37,360 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2021-11-13 18:49:37,360 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2021-11-13 18:49:37,360 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2021-11-13 18:49:37,361 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2021-11-13 18:49:37,361 INFO L130 BoogieDeclarations]: Found specification of procedure sis900_interrupt [2021-11-13 18:49:37,361 INFO L138 BoogieDeclarations]: Found implementation of procedure sis900_interrupt [2021-11-13 18:49:37,361 INFO L130 BoogieDeclarations]: Found specification of procedure sis900_reset_phy [2021-11-13 18:49:37,361 INFO L138 BoogieDeclarations]: Found implementation of procedure sis900_reset_phy [2021-11-13 18:49:37,362 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2021-11-13 18:49:37,363 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2021-11-13 18:49:37,363 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-13 18:49:37,363 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2021-11-13 18:49:37,363 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2021-11-13 18:49:37,363 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2021-11-13 18:49:37,363 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2021-11-13 18:49:37,363 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-11-13 18:49:37,364 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-11-13 18:49:37,364 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-13 18:49:37,364 INFO L130 BoogieDeclarations]: Found specification of procedure pci_read_config_dword [2021-11-13 18:49:37,364 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_read_config_dword [2021-11-13 18:49:37,364 INFO L130 BoogieDeclarations]: Found specification of procedure sis900_open [2021-11-13 18:49:37,365 INFO L138 BoogieDeclarations]: Found implementation of procedure sis900_open [2021-11-13 18:49:37,365 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-11-13 18:49:37,365 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-11-13 18:49:37,365 INFO L130 BoogieDeclarations]: Found specification of procedure sis900_nway_reset [2021-11-13 18:49:37,365 INFO L138 BoogieDeclarations]: Found implementation of procedure sis900_nway_reset [2021-11-13 18:49:37,366 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2021-11-13 18:49:37,366 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2021-11-13 18:49:37,366 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-11-13 18:49:37,366 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-11-13 18:49:37,367 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2021-11-13 18:49:37,367 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2021-11-13 18:49:37,370 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_read [2021-11-13 18:49:37,371 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_read [2021-11-13 18:49:37,372 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-13 18:49:37,372 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-13 18:49:37,372 INFO L130 BoogieDeclarations]: Found specification of procedure sis900_close [2021-11-13 18:49:37,373 INFO L138 BoogieDeclarations]: Found implementation of procedure sis900_close [2021-11-13 18:49:37,373 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-11-13 18:49:37,373 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-11-13 18:49:37,374 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2021-11-13 18:49:37,379 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2021-11-13 18:49:37,379 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2021-11-13 18:49:37,379 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2021-11-13 18:49:37,379 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2021-11-13 18:49:37,380 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2021-11-13 18:49:37,380 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_reset [2021-11-13 18:49:37,380 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_reset [2021-11-13 18:49:37,380 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2021-11-13 18:49:37,380 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2021-11-13 18:49:37,380 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2021-11-13 18:49:37,380 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2021-11-13 18:49:37,380 INFO L130 BoogieDeclarations]: Found specification of procedure pci_alloc_consistent [2021-11-13 18:49:37,381 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_alloc_consistent [2021-11-13 18:49:37,381 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2021-11-13 18:49:37,381 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2021-11-13 18:49:37,381 INFO L130 BoogieDeclarations]: Found specification of procedure read_eeprom [2021-11-13 18:49:37,381 INFO L138 BoogieDeclarations]: Found implementation of procedure read_eeprom [2021-11-13 18:49:37,381 INFO L130 BoogieDeclarations]: Found specification of procedure netif_start_queue [2021-11-13 18:49:37,381 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_start_queue [2021-11-13 18:49:37,381 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-13 18:49:37,382 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2021-11-13 18:49:37,382 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2021-11-13 18:49:37,382 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_irq_74 [2021-11-13 18:49:37,382 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_irq_74 [2021-11-13 18:49:37,382 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-13 18:49:37,382 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2021-11-13 18:49:37,382 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2021-11-13 18:49:37,382 INFO L130 BoogieDeclarations]: Found specification of procedure sis900_init_rx_ring [2021-11-13 18:49:37,383 INFO L138 BoogieDeclarations]: Found implementation of procedure sis900_init_rx_ring [2021-11-13 18:49:37,383 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-13 18:49:37,383 INFO L130 BoogieDeclarations]: Found specification of procedure pci_write_config_byte [2021-11-13 18:49:37,383 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_write_config_byte [2021-11-13 18:49:37,383 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2021-11-13 18:49:37,383 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2021-11-13 18:49:37,383 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2021-11-13 18:49:37,383 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2021-11-13 18:49:37,384 INFO L130 BoogieDeclarations]: Found specification of procedure eth_hw_addr_random [2021-11-13 18:49:37,384 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_hw_addr_random [2021-11-13 18:49:37,384 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_irq [2021-11-13 18:49:37,384 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_irq [2021-11-13 18:49:37,384 INFO L130 BoogieDeclarations]: Found specification of procedure pci_write_config_dword [2021-11-13 18:49:37,384 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_write_config_dword [2021-11-13 18:49:37,384 INFO L130 BoogieDeclarations]: Found specification of procedure sis900_poll [2021-11-13 18:49:37,384 INFO L138 BoogieDeclarations]: Found implementation of procedure sis900_poll [2021-11-13 18:49:37,385 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2021-11-13 18:49:37,385 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2021-11-13 18:49:37,385 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2021-11-13 18:49:37,385 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2021-11-13 18:49:37,385 INFO L130 BoogieDeclarations]: Found specification of procedure pci_dma_mapping_error [2021-11-13 18:49:37,385 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_dma_mapping_error [2021-11-13 18:49:37,385 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2021-11-13 18:49:37,385 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2021-11-13 18:49:37,386 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-11-13 18:49:37,386 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-11-13 18:49:37,386 INFO L130 BoogieDeclarations]: Found specification of procedure sis900_resume [2021-11-13 18:49:37,386 INFO L138 BoogieDeclarations]: Found implementation of procedure sis900_resume [2021-11-13 18:49:37,386 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-13 18:49:37,386 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-11-13 18:49:37,386 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-11-13 18:49:37,386 INFO L130 BoogieDeclarations]: Found specification of procedure pci_dev_put [2021-11-13 18:49:37,387 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_dev_put [2021-11-13 18:49:37,387 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_idle [2021-11-13 18:49:37,387 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_idle [2021-11-13 18:49:37,387 INFO L130 BoogieDeclarations]: Found specification of procedure sis900_tx_timeout [2021-11-13 18:49:37,387 INFO L138 BoogieDeclarations]: Found implementation of procedure sis900_tx_timeout [2021-11-13 18:49:37,387 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2021-11-13 18:49:37,387 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2021-11-13 18:49:37,387 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iounmap [2021-11-13 18:49:37,388 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iounmap [2021-11-13 18:49:37,388 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_power_state [2021-11-13 18:49:37,388 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_power_state [2021-11-13 18:49:37,388 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-13 18:49:37,388 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2021-11-13 18:49:37,388 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2021-11-13 18:49:38,843 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-11-13 18:49:45,537 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-13 18:49:45,667 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-13 18:49:45,668 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-13 18:49:45,673 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 06:49:45 BoogieIcfgContainer [2021-11-13 18:49:45,674 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-13 18:49:45,675 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-13 18:49:45,676 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-13 18:49:45,679 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-13 18:49:45,680 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 06:49:31" (1/3) ... [2021-11-13 18:49:45,681 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@112bc1c7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 06:49:45, skipping insertion in model container [2021-11-13 18:49:45,681 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:49:36" (2/3) ... [2021-11-13 18:49:45,681 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@112bc1c7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 06:49:45, skipping insertion in model container [2021-11-13 18:49:45,681 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 06:49:45" (3/3) ... [2021-11-13 18:49:45,684 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-sis-sis900.cil.i [2021-11-13 18:49:45,692 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-13 18:49:45,692 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2021-11-13 18:49:45,765 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-13 18:49:45,772 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 [2021-11-13 18:49:45,773 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-11-13 18:49:45,873 INFO L276 IsEmpty]: Start isEmpty. Operand has 1960 states, 1339 states have (on average 1.2763256161314414) internal successors, (1709), 1366 states have internal predecessors, (1709), 526 states have call successors, (526), 93 states have call predecessors, (526), 92 states have return successors, (520), 512 states have call predecessors, (520), 520 states have call successors, (520) [2021-11-13 18:49:45,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2021-11-13 18:49:45,899 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:49:45,900 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 11, 11, 11, 11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 18:49:45,901 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_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-13 18:49:45,907 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:49:45,907 INFO L85 PathProgramCache]: Analyzing trace with hash -511834341, now seen corresponding path program 1 times [2021-11-13 18:49:45,918 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:49:45,918 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [816801989] [2021-11-13 18:49:45,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:49:45,920 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:49:46,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:49:46,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-13 18:49:46,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:49:46,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:49:46,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:49:46,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-13 18:49:46,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:49:46,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:49:46,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:49:46,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-13 18:49:46,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:49:46,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:49:46,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:49:46,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-13 18:49:46,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:49:46,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:49:46,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:49:46,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-13 18:49:46,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:49:46,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:49:46,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:49:47,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-13 18:49:47,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:49:47,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:49:47,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:49:47,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-13 18:49:47,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:49:47,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:49:47,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:49:47,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-13 18:49:47,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:49:47,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:49:47,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:49:47,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-13 18:49:47,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:49:47,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:49:47,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:49:47,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-11-13 18:49:47,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:49:47,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:49:47,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:49:47,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-11-13 18:49:47,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:49:47,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:49:47,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:49:47,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-11-13 18:49:47,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:49:47,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2021-11-13 18:49:47,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:49:47,317 INFO L134 CoverageAnalysis]: Checked inductivity of 528 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 528 trivial. 0 not checked. [2021-11-13 18:49:47,318 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:49:47,318 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [816801989] [2021-11-13 18:49:47,319 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [816801989] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 18:49:47,319 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:49:47,320 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-13 18:49:47,322 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1149387485] [2021-11-13 18:49:47,323 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 18:49:47,328 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-13 18:49:47,329 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:49:47,362 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-13 18:49:47,368 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-13 18:49:47,377 INFO L87 Difference]: Start difference. First operand has 1960 states, 1339 states have (on average 1.2763256161314414) internal successors, (1709), 1366 states have internal predecessors, (1709), 526 states have call successors, (526), 93 states have call predecessors, (526), 92 states have return successors, (520), 512 states have call predecessors, (520), 520 states have call successors, (520) 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, (16), 3 states have call predecessors, (16), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2021-11-13 18:49:49,460 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:49:51,568 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:49:58,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:49:58,736 INFO L93 Difference]: Finished difference Result 6069 states and 8743 transitions. [2021-11-13 18:49:58,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-13 18:49:58,739 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, (16), 3 states have call predecessors, (16), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 149 [2021-11-13 18:49:58,740 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 18:49:58,791 INFO L225 Difference]: With dead ends: 6069 [2021-11-13 18:49:58,791 INFO L226 Difference]: Without dead ends: 4126 [2021-11-13 18:49:58,812 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-13 18:49:58,816 INFO L933 BasicCegarLoop]: 2853 mSDtfsCounter, 3793 mSDsluCounter, 2855 mSDsCounter, 0 mSdLazyCounter, 2047 mSolverCounterSat, 1761 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9397.16ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 4293 SdHoareTripleChecker+Valid, 5708 SdHoareTripleChecker+Invalid, 3810 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 112.53ms SdHoareTripleChecker+Time, 1761 IncrementalHoareTripleChecker+Valid, 2047 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10618.41ms IncrementalHoareTripleChecker+Time [2021-11-13 18:49:58,817 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4293 Valid, 5708 Invalid, 3810 Unknown, 0 Unchecked, 112.53ms Time], IncrementalHoareTripleChecker [1761 Valid, 2047 Invalid, 2 Unknown, 0 Unchecked, 10618.41ms Time] [2021-11-13 18:49:58,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4126 states. [2021-11-13 18:49:59,135 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4126 to 3786. [2021-11-13 18:49:59,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3786 states, 2606 states have (on average 1.2709132770529548) internal successors, (3312), 2659 states have internal predecessors, (3312), 997 states have call successors, (997), 181 states have call predecessors, (997), 180 states have return successors, (993), 977 states have call predecessors, (993), 993 states have call successors, (993) [2021-11-13 18:49:59,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3786 states to 3786 states and 5302 transitions. [2021-11-13 18:49:59,199 INFO L78 Accepts]: Start accepts. Automaton has 3786 states and 5302 transitions. Word has length 149 [2021-11-13 18:49:59,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 18:49:59,201 INFO L470 AbstractCegarLoop]: Abstraction has 3786 states and 5302 transitions. [2021-11-13 18:49:59,201 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, (16), 3 states have call predecessors, (16), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2021-11-13 18:49:59,202 INFO L276 IsEmpty]: Start isEmpty. Operand 3786 states and 5302 transitions. [2021-11-13 18:49:59,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2021-11-13 18:49:59,210 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:49:59,210 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 11, 11, 11, 11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 18:49:59,210 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-13 18:49:59,211 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-13 18:49:59,211 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:49:59,212 INFO L85 PathProgramCache]: Analyzing trace with hash 474246430, now seen corresponding path program 1 times [2021-11-13 18:49:59,212 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:49:59,212 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [9684933] [2021-11-13 18:49:59,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:49:59,212 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:49:59,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:49:59,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-13 18:49:59,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:49:59,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:49:59,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:49:59,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-13 18:49:59,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:49:59,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:49:59,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:49:59,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-13 18:49:59,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:49:59,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:49:59,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:49:59,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-13 18:49:59,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:49:59,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:49:59,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:49:59,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-13 18:49:59,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:49:59,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:49:59,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:49:59,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-13 18:49:59,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:49:59,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:49:59,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:49:59,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-13 18:49:59,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:49:59,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:49:59,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:49:59,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-13 18:49:59,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:49:59,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:49:59,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:49:59,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-13 18:49:59,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:49:59,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:49:59,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:49:59,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-11-13 18:49:59,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:49:59,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:49:59,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:49:59,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-11-13 18:49:59,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:49:59,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:49:59,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:49:59,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-11-13 18:49:59,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:49:59,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-11-13 18:49:59,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:49:59,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2021-11-13 18:49:59,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:49:59,895 INFO L134 CoverageAnalysis]: Checked inductivity of 528 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 528 trivial. 0 not checked. [2021-11-13 18:49:59,895 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:49:59,896 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [9684933] [2021-11-13 18:49:59,899 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [9684933] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 18:49:59,900 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:49:59,900 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-13 18:49:59,901 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2116292590] [2021-11-13 18:49:59,902 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 18:49:59,907 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-13 18:49:59,908 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:49:59,908 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-13 18:49:59,908 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-13 18:49:59,909 INFO L87 Difference]: Start difference. First operand 3786 states and 5302 transitions. Second operand has 4 states, 4 states have (on average 9.5) internal successors, (38), 3 states have internal predecessors, (38), 3 states have call successors, (18), 3 states have call predecessors, (18), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2021-11-13 18:50:01,952 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:50:04,081 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:50:10,865 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:50:10,866 INFO L93 Difference]: Finished difference Result 11820 states and 16701 transitions. [2021-11-13 18:50:10,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-13 18:50:10,867 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.5) internal successors, (38), 3 states have internal predecessors, (38), 3 states have call successors, (18), 3 states have call predecessors, (18), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) Word has length 153 [2021-11-13 18:50:10,869 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 18:50:10,959 INFO L225 Difference]: With dead ends: 11820 [2021-11-13 18:50:10,960 INFO L226 Difference]: Without dead ends: 8061 [2021-11-13 18:50:10,990 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-13 18:50:10,991 INFO L933 BasicCegarLoop]: 2858 mSDtfsCounter, 3779 mSDsluCounter, 2877 mSDsCounter, 0 mSdLazyCounter, 1982 mSolverCounterSat, 1787 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9127.57ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 4271 SdHoareTripleChecker+Valid, 5735 SdHoareTripleChecker+Invalid, 3771 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 70.08ms SdHoareTripleChecker+Time, 1787 IncrementalHoareTripleChecker+Valid, 1982 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10247.85ms IncrementalHoareTripleChecker+Time [2021-11-13 18:50:10,991 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4271 Valid, 5735 Invalid, 3771 Unknown, 0 Unchecked, 70.08ms Time], IncrementalHoareTripleChecker [1787 Valid, 1982 Invalid, 2 Unknown, 0 Unchecked, 10247.85ms Time] [2021-11-13 18:50:11,007 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8061 states. [2021-11-13 18:50:11,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8061 to 7642. [2021-11-13 18:50:11,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7642 states, 5292 states have (on average 1.277588813303099) internal successors, (6761), 5408 states have internal predecessors, (6761), 1982 states have call successors, (1982), 360 states have call predecessors, (1982), 365 states have return successors, (2016), 1939 states have call predecessors, (2016), 1978 states have call successors, (2016) [2021-11-13 18:50:11,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7642 states to 7642 states and 10759 transitions. [2021-11-13 18:50:11,673 INFO L78 Accepts]: Start accepts. Automaton has 7642 states and 10759 transitions. Word has length 153 [2021-11-13 18:50:11,676 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 18:50:11,677 INFO L470 AbstractCegarLoop]: Abstraction has 7642 states and 10759 transitions. [2021-11-13 18:50:11,677 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.5) internal successors, (38), 3 states have internal predecessors, (38), 3 states have call successors, (18), 3 states have call predecessors, (18), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2021-11-13 18:50:11,677 INFO L276 IsEmpty]: Start isEmpty. Operand 7642 states and 10759 transitions. [2021-11-13 18:50:11,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2021-11-13 18:50:11,685 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:50:11,686 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 11, 11, 11, 11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 18:50:11,686 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-13 18:50:11,687 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-13 18:50:11,687 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:50:11,688 INFO L85 PathProgramCache]: Analyzing trace with hash 501804944, now seen corresponding path program 1 times [2021-11-13 18:50:11,688 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:50:11,688 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1602513877] [2021-11-13 18:50:11,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:50:11,689 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:50:11,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:50:11,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-13 18:50:11,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:50:11,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:50:11,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:50:11,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-13 18:50:11,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:50:11,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:50:11,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:50:11,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-13 18:50:11,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:50:11,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:50:11,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:50:11,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-13 18:50:11,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:50:11,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:50:11,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:50:12,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-13 18:50:12,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:50:12,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:50:12,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:50:12,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-13 18:50:12,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:50:12,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:50:12,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:50:12,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-13 18:50:12,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:50:12,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:50:12,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:50:12,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-13 18:50:12,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:50:12,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:50:12,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:50:12,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-13 18:50:12,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:50:12,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:50:12,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:50:12,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-11-13 18:50:12,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:50:12,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:50:12,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:50:12,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-11-13 18:50:12,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:50:12,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:50:12,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:50:12,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-11-13 18:50:12,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:50:12,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2021-11-13 18:50:12,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:50:12,171 INFO L134 CoverageAnalysis]: Checked inductivity of 528 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 528 trivial. 0 not checked. [2021-11-13 18:50:12,172 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:50:12,172 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1602513877] [2021-11-13 18:50:12,172 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1602513877] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 18:50:12,172 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:50:12,173 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-13 18:50:12,173 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1768448749] [2021-11-13 18:50:12,173 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 18:50:12,174 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-13 18:50:12,174 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:50:12,175 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-13 18:50:12,175 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-13 18:50:12,175 INFO L87 Difference]: Start difference. First operand 7642 states and 10759 transitions. Second operand has 4 states, 4 states have (on average 10.75) internal successors, (43), 3 states have internal predecessors, (43), 3 states have call successors, (17), 3 states have call predecessors, (17), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2021-11-13 18:50:13,535 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.36s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:50:15,617 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:50:22,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:50:22,255 INFO L93 Difference]: Finished difference Result 22434 states and 31756 transitions. [2021-11-13 18:50:22,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-13 18:50:22,256 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 3 states have internal predecessors, (43), 3 states have call successors, (17), 3 states have call predecessors, (17), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 156 [2021-11-13 18:50:22,256 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 18:50:22,442 INFO L225 Difference]: With dead ends: 22434 [2021-11-13 18:50:22,443 INFO L226 Difference]: Without dead ends: 14819 [2021-11-13 18:50:22,498 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-13 18:50:22,502 INFO L933 BasicCegarLoop]: 2822 mSDtfsCounter, 3375 mSDsluCounter, 2809 mSDsCounter, 0 mSdLazyCounter, 2019 mSolverCounterSat, 1721 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8194.95ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 3824 SdHoareTripleChecker+Valid, 5631 SdHoareTripleChecker+Invalid, 3741 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 57.57ms SdHoareTripleChecker+Time, 1721 IncrementalHoareTripleChecker+Valid, 2019 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9201.06ms IncrementalHoareTripleChecker+Time [2021-11-13 18:50:22,502 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3824 Valid, 5631 Invalid, 3741 Unknown, 0 Unchecked, 57.57ms Time], IncrementalHoareTripleChecker [1721 Valid, 2019 Invalid, 1 Unknown, 0 Unchecked, 9201.06ms Time] [2021-11-13 18:50:22,527 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14819 states. [2021-11-13 18:50:23,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14819 to 13774. [2021-11-13 18:50:23,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13774 states, 9444 states have (on average 1.2749894112664126) internal successors, (12041), 9658 states have internal predecessors, (12041), 3634 states have call successors, (3634), 694 states have call predecessors, (3634), 693 states have return successors, (3674), 3543 states have call predecessors, (3674), 3630 states have call successors, (3674) [2021-11-13 18:50:23,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13774 states to 13774 states and 19349 transitions. [2021-11-13 18:50:23,584 INFO L78 Accepts]: Start accepts. Automaton has 13774 states and 19349 transitions. Word has length 156 [2021-11-13 18:50:23,586 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 18:50:23,586 INFO L470 AbstractCegarLoop]: Abstraction has 13774 states and 19349 transitions. [2021-11-13 18:50:23,587 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 3 states have internal predecessors, (43), 3 states have call successors, (17), 3 states have call predecessors, (17), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2021-11-13 18:50:23,588 INFO L276 IsEmpty]: Start isEmpty. Operand 13774 states and 19349 transitions. [2021-11-13 18:50:23,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2021-11-13 18:50:23,591 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:50:23,591 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 11, 11, 11, 11, 11, 11, 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] [2021-11-13 18:50:23,592 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-13 18:50:23,592 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-13 18:50:23,593 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:50:23,594 INFO L85 PathProgramCache]: Analyzing trace with hash -585811610, now seen corresponding path program 1 times [2021-11-13 18:50:23,594 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:50:23,594 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [588031261] [2021-11-13 18:50:23,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:50:23,594 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:50:23,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:50:23,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-13 18:50:23,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:50:23,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:50:23,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:50:23,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-13 18:50:23,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:50:23,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:50:23,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:50:23,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-13 18:50:23,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:50:23,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:50:23,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:50:24,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-13 18:50:24,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:50:24,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:50:24,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:50:24,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-13 18:50:24,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:50:24,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:50:24,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:50:24,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-13 18:50:24,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:50:24,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:50:24,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:50:24,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-13 18:50:24,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:50:24,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:50:24,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:50:24,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-13 18:50:24,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:50:24,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:50:24,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:50:24,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-13 18:50:24,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:50:24,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:50:24,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:50:24,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-11-13 18:50:24,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:50:24,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:50:24,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:50:24,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-11-13 18:50:24,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:50:24,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:50:24,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:50:24,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-11-13 18:50:24,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:50:24,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-11-13 18:50:24,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:50:24,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2021-11-13 18:50:24,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:50:24,204 INFO L134 CoverageAnalysis]: Checked inductivity of 531 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 531 trivial. 0 not checked. [2021-11-13 18:50:24,205 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:50:24,205 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [588031261] [2021-11-13 18:50:24,205 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [588031261] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 18:50:24,205 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:50:24,205 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-13 18:50:24,206 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1196644590] [2021-11-13 18:50:24,206 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 18:50:24,207 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-13 18:50:24,207 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:50:24,207 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-13 18:50:24,207 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2021-11-13 18:50:24,208 INFO L87 Difference]: Start difference. First operand 13774 states and 19349 transitions. Second operand has 7 states, 6 states have (on average 7.666666666666667) internal successors, (46), 5 states have internal predecessors, (46), 3 states have call successors, (20), 3 states have call predecessors, (20), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2021-11-13 18:50:26,254 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:50:28,350 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:50:38,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:50:38,894 INFO L93 Difference]: Finished difference Result 29556 states and 41546 transitions. [2021-11-13 18:50:38,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-13 18:50:38,895 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 7.666666666666667) internal successors, (46), 5 states have internal predecessors, (46), 3 states have call successors, (20), 3 states have call predecessors, (20), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) Word has length 165 [2021-11-13 18:50:38,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 18:50:38,998 INFO L225 Difference]: With dead ends: 29556 [2021-11-13 18:50:38,999 INFO L226 Difference]: Without dead ends: 15809 [2021-11-13 18:50:39,081 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-11-13 18:50:39,082 INFO L933 BasicCegarLoop]: 3903 mSDtfsCounter, 7975 mSDsluCounter, 3837 mSDsCounter, 0 mSdLazyCounter, 4758 mSolverCounterSat, 4075 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12117.77ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 8678 SdHoareTripleChecker+Valid, 7740 SdHoareTripleChecker+Invalid, 8835 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 77.93ms SdHoareTripleChecker+Time, 4075 IncrementalHoareTripleChecker+Valid, 4758 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13828.82ms IncrementalHoareTripleChecker+Time [2021-11-13 18:50:39,083 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8678 Valid, 7740 Invalid, 8835 Unknown, 0 Unchecked, 77.93ms Time], IncrementalHoareTripleChecker [4075 Valid, 4758 Invalid, 2 Unknown, 0 Unchecked, 13828.82ms Time] [2021-11-13 18:50:39,109 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15809 states. [2021-11-13 18:50:39,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15809 to 14456. [2021-11-13 18:50:39,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14456 states, 10036 states have (on average 1.2748106815464328) internal successors, (12794), 10240 states have internal predecessors, (12794), 3614 states have call successors, (3614), 817 states have call predecessors, (3614), 803 states have return successors, (3627), 3509 states have call predecessors, (3627), 3610 states have call successors, (3627) [2021-11-13 18:50:40,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14456 states to 14456 states and 20035 transitions. [2021-11-13 18:50:40,028 INFO L78 Accepts]: Start accepts. Automaton has 14456 states and 20035 transitions. Word has length 165 [2021-11-13 18:50:40,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 18:50:40,029 INFO L470 AbstractCegarLoop]: Abstraction has 14456 states and 20035 transitions. [2021-11-13 18:50:40,029 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 7.666666666666667) internal successors, (46), 5 states have internal predecessors, (46), 3 states have call successors, (20), 3 states have call predecessors, (20), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2021-11-13 18:50:40,029 INFO L276 IsEmpty]: Start isEmpty. Operand 14456 states and 20035 transitions. [2021-11-13 18:50:40,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2021-11-13 18:50:40,035 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:50:40,035 INFO L514 BasicCegarLoop]: trace histogram [15, 15, 11, 11, 11, 11, 11, 11, 4, 4, 4, 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] [2021-11-13 18:50:40,036 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-13 18:50:40,036 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_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-13 18:50:40,037 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:50:40,037 INFO L85 PathProgramCache]: Analyzing trace with hash -1098294467, now seen corresponding path program 1 times [2021-11-13 18:50:40,037 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:50:40,037 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [792685956] [2021-11-13 18:50:40,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:50:40,038 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:50:40,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:50:40,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-13 18:50:40,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:50:40,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:50:40,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:50:40,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-13 18:50:40,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:50:40,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:50:40,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:50:40,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-13 18:50:40,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:50:40,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:50:40,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:50:40,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-13 18:50:40,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:50:40,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:50:40,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:50:40,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-13 18:50:40,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:50:40,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:50:40,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:50:40,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-13 18:50:40,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:50:40,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:50:40,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:50:40,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-13 18:50:40,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:50:40,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:50:40,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:50:40,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-13 18:50:40,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:50:40,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:50:40,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:50:40,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-13 18:50:40,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:50:40,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:50:40,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:50:40,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-11-13 18:50:40,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:50:40,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:50:40,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:50:40,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-11-13 18:50:40,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:50:40,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:50:40,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:50:40,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-11-13 18:50:40,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:50:40,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2021-11-13 18:50:40,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:50:40,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-11-13 18:50:40,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:50:40,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2021-11-13 18:50:40,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:50:40,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2021-11-13 18:50:40,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:50:40,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:50:40,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:50:40,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-11-13 18:50:40,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:50:40,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2021-11-13 18:50:40,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:50:40,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2021-11-13 18:50:40,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:50:40,945 INFO L134 CoverageAnalysis]: Checked inductivity of 679 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 679 trivial. 0 not checked. [2021-11-13 18:50:40,946 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:50:40,946 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [792685956] [2021-11-13 18:50:40,946 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [792685956] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 18:50:40,946 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:50:40,947 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-13 18:50:40,947 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [142803059] [2021-11-13 18:50:40,947 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 18:50:40,948 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-13 18:50:40,948 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:50:40,948 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-13 18:50:40,949 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-13 18:50:40,949 INFO L87 Difference]: Start difference. First operand 14456 states and 20035 transitions. Second operand has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 4 states have internal predecessors, (56), 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) [2021-11-13 18:50:42,995 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:50:47,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:50:47,944 INFO L93 Difference]: Finished difference Result 15745 states and 22066 transitions. [2021-11-13 18:50:47,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-13 18:50:47,945 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 4 states have internal predecessors, (56), 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 205 [2021-11-13 18:50:47,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 18:50:48,043 INFO L225 Difference]: With dead ends: 15745 [2021-11-13 18:50:48,043 INFO L226 Difference]: Without dead ends: 15743 [2021-11-13 18:50:48,056 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-11-13 18:50:48,058 INFO L933 BasicCegarLoop]: 2526 mSDtfsCounter, 3014 mSDsluCounter, 4748 mSDsCounter, 0 mSdLazyCounter, 2401 mSolverCounterSat, 1265 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5670.13ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 3288 SdHoareTripleChecker+Valid, 7274 SdHoareTripleChecker+Invalid, 3667 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 46.08ms SdHoareTripleChecker+Time, 1265 IncrementalHoareTripleChecker+Valid, 2401 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6302.08ms IncrementalHoareTripleChecker+Time [2021-11-13 18:50:48,058 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3288 Valid, 7274 Invalid, 3667 Unknown, 0 Unchecked, 46.08ms Time], IncrementalHoareTripleChecker [1265 Valid, 2401 Invalid, 1 Unknown, 0 Unchecked, 6302.08ms Time] [2021-11-13 18:50:48,084 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15743 states. [2021-11-13 18:50:48,908 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15743 to 14460. [2021-11-13 18:50:48,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14460 states, 10039 states have (on average 1.2747285586213766) internal successors, (12797), 10243 states have internal predecessors, (12797), 3614 states have call successors, (3614), 818 states have call predecessors, (3614), 804 states have return successors, (3627), 3509 states have call predecessors, (3627), 3610 states have call successors, (3627) [2021-11-13 18:50:49,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14460 states to 14460 states and 20038 transitions. [2021-11-13 18:50:49,015 INFO L78 Accepts]: Start accepts. Automaton has 14460 states and 20038 transitions. Word has length 205 [2021-11-13 18:50:49,016 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 18:50:49,016 INFO L470 AbstractCegarLoop]: Abstraction has 14460 states and 20038 transitions. [2021-11-13 18:50:49,017 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 4 states have internal predecessors, (56), 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) [2021-11-13 18:50:49,017 INFO L276 IsEmpty]: Start isEmpty. Operand 14460 states and 20038 transitions. [2021-11-13 18:50:49,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2021-11-13 18:50:49,022 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:50:49,023 INFO L514 BasicCegarLoop]: trace histogram [15, 15, 11, 11, 11, 11, 11, 11, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 18:50:49,023 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-13 18:50:49,023 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_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-13 18:50:49,024 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:50:49,024 INFO L85 PathProgramCache]: Analyzing trace with hash 2033981501, now seen corresponding path program 1 times [2021-11-13 18:50:49,024 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:50:49,024 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2035298293] [2021-11-13 18:50:49,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:50:49,025 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:50:49,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:50:49,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-13 18:50:49,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:50:49,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:50:49,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:50:49,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-13 18:50:49,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:50:49,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:50:49,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:50:49,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-13 18:50:49,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:50:49,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:50:49,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:50:49,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-13 18:50:49,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:50:49,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:50:49,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:50:49,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-13 18:50:49,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:50:49,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:50:49,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:50:49,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-13 18:50:49,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:50:49,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:50:49,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:50:49,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-13 18:50:49,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:50:49,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:50:49,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:50:49,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-13 18:50:49,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:50:49,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:50:49,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:50:49,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-13 18:50:49,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:50:49,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:50:49,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:50:49,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-11-13 18:50:49,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:50:49,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:50:49,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:50:49,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-11-13 18:50:49,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:50:49,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:50:49,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:50:49,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-11-13 18:50:49,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:50:49,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2021-11-13 18:50:49,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:50:49,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-11-13 18:50:49,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:50:49,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2021-11-13 18:50:49,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:50:49,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2021-11-13 18:50:49,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:50:49,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:50:49,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:50:49,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-11-13 18:50:49,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:50:49,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2021-11-13 18:50:49,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:50:49,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2021-11-13 18:50:49,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:50:49,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2021-11-13 18:50:49,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:50:49,763 INFO L134 CoverageAnalysis]: Checked inductivity of 681 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 679 trivial. 0 not checked. [2021-11-13 18:50:49,763 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:50:49,764 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2035298293] [2021-11-13 18:50:49,764 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2035298293] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 18:50:49,764 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:50:49,764 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-13 18:50:49,764 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1437212150] [2021-11-13 18:50:49,765 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 18:50:49,765 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-13 18:50:49,765 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:50:49,766 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-13 18:50:49,766 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-13 18:50:49,766 INFO L87 Difference]: Start difference. First operand 14460 states and 20038 transitions. Second operand has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 4 states have internal predecessors, (59), 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) [2021-11-13 18:50:51,804 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:50:56,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:50:56,105 INFO L93 Difference]: Finished difference Result 15749 states and 22069 transitions. [2021-11-13 18:50:56,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-13 18:50:56,106 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 4 states have internal predecessors, (59), 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 210 [2021-11-13 18:50:56,107 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 18:50:56,194 INFO L225 Difference]: With dead ends: 15749 [2021-11-13 18:50:56,195 INFO L226 Difference]: Without dead ends: 15747 [2021-11-13 18:50:56,207 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-11-13 18:50:56,208 INFO L933 BasicCegarLoop]: 2531 mSDtfsCounter, 3004 mSDsluCounter, 4750 mSDsCounter, 0 mSdLazyCounter, 2401 mSolverCounterSat, 1260 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5207.44ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 3280 SdHoareTripleChecker+Valid, 7281 SdHoareTripleChecker+Invalid, 3662 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 41.74ms SdHoareTripleChecker+Time, 1260 IncrementalHoareTripleChecker+Valid, 2401 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5756.59ms IncrementalHoareTripleChecker+Time [2021-11-13 18:50:56,208 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3280 Valid, 7281 Invalid, 3662 Unknown, 0 Unchecked, 41.74ms Time], IncrementalHoareTripleChecker [1260 Valid, 2401 Invalid, 1 Unknown, 0 Unchecked, 5756.59ms Time] [2021-11-13 18:50:56,229 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15747 states. [2021-11-13 18:50:57,013 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15747 to 14464. [2021-11-13 18:50:57,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14464 states, 10042 states have (on average 1.2746464847639913) internal successors, (12800), 10246 states have internal predecessors, (12800), 3614 states have call successors, (3614), 819 states have call predecessors, (3614), 805 states have return successors, (3627), 3509 states have call predecessors, (3627), 3610 states have call successors, (3627) [2021-11-13 18:50:57,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14464 states to 14464 states and 20041 transitions. [2021-11-13 18:50:57,118 INFO L78 Accepts]: Start accepts. Automaton has 14464 states and 20041 transitions. Word has length 210 [2021-11-13 18:50:57,119 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 18:50:57,119 INFO L470 AbstractCegarLoop]: Abstraction has 14464 states and 20041 transitions. [2021-11-13 18:50:57,119 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 4 states have internal predecessors, (59), 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) [2021-11-13 18:50:57,119 INFO L276 IsEmpty]: Start isEmpty. Operand 14464 states and 20041 transitions. [2021-11-13 18:50:57,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 216 [2021-11-13 18:50:57,125 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:50:57,125 INFO L514 BasicCegarLoop]: trace histogram [15, 15, 11, 11, 11, 11, 11, 11, 4, 4, 4, 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, 1, 1, 1] [2021-11-13 18:50:57,125 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-13 18:50:57,126 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_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-13 18:50:57,126 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:50:57,126 INFO L85 PathProgramCache]: Analyzing trace with hash 567579389, now seen corresponding path program 1 times [2021-11-13 18:50:57,126 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:50:57,127 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [424682491] [2021-11-13 18:50:57,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:50:57,127 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:50:57,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:50:57,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-13 18:50:57,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:50:57,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:50:57,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:50:57,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-13 18:50:57,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:50:57,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:50:57,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:50:57,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-13 18:50:57,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:50:57,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:50:57,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:50:57,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-13 18:50:57,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:50:57,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:50:57,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:50:57,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-13 18:50:57,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:50:57,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:50:57,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:50:57,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-13 18:50:57,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:50:57,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:50:57,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:50:57,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-13 18:50:57,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:50:57,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:50:57,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:50:57,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-13 18:50:57,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:50:57,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:50:57,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:50:57,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-13 18:50:57,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:50:57,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:50:57,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:50:57,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-11-13 18:50:57,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:50:57,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:50:57,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:50:57,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-11-13 18:50:57,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:50:57,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:50:57,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:50:57,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-11-13 18:50:57,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:50:57,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2021-11-13 18:50:57,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:50:57,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-11-13 18:50:57,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:50:57,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2021-11-13 18:50:57,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:50:57,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2021-11-13 18:50:57,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:50:57,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:50:57,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:50:57,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-11-13 18:50:57,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:50:57,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2021-11-13 18:50:57,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:50:57,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2021-11-13 18:50:57,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:50:57,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2021-11-13 18:50:57,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:50:57,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2021-11-13 18:50:57,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:50:57,684 INFO L134 CoverageAnalysis]: Checked inductivity of 687 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 683 trivial. 0 not checked. [2021-11-13 18:50:57,685 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:50:57,685 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [424682491] [2021-11-13 18:50:57,685 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [424682491] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 18:50:57,685 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:50:57,686 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-13 18:50:57,686 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2029742663] [2021-11-13 18:50:57,686 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 18:50:57,686 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-13 18:50:57,687 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:50:57,687 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-13 18:50:57,687 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-13 18:50:57,687 INFO L87 Difference]: Start difference. First operand 14464 states and 20041 transitions. Second operand has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 4 states have internal predecessors, (59), 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) [2021-11-13 18:50:59,727 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:51:04,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:51:04,048 INFO L93 Difference]: Finished difference Result 15753 states and 22072 transitions. [2021-11-13 18:51:04,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-13 18:51:04,049 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 4 states have internal predecessors, (59), 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 215 [2021-11-13 18:51:04,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 18:51:04,215 INFO L225 Difference]: With dead ends: 15753 [2021-11-13 18:51:04,216 INFO L226 Difference]: Without dead ends: 15751 [2021-11-13 18:51:04,223 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 67 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-11-13 18:51:04,224 INFO L933 BasicCegarLoop]: 2535 mSDtfsCounter, 3000 mSDsluCounter, 4759 mSDsCounter, 0 mSdLazyCounter, 2401 mSolverCounterSat, 1261 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5195.36ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 3275 SdHoareTripleChecker+Valid, 7294 SdHoareTripleChecker+Invalid, 3663 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 36.75ms SdHoareTripleChecker+Time, 1261 IncrementalHoareTripleChecker+Valid, 2401 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5731.53ms IncrementalHoareTripleChecker+Time [2021-11-13 18:51:04,224 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3275 Valid, 7294 Invalid, 3663 Unknown, 0 Unchecked, 36.75ms Time], IncrementalHoareTripleChecker [1261 Valid, 2401 Invalid, 1 Unknown, 0 Unchecked, 5731.53ms Time] [2021-11-13 18:51:04,241 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15751 states. [2021-11-13 18:51:04,927 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15751 to 14468. [2021-11-13 18:51:04,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14468 states, 10045 states have (on average 1.2745644599303136) internal successors, (12803), 10249 states have internal predecessors, (12803), 3614 states have call successors, (3614), 820 states have call predecessors, (3614), 806 states have return successors, (3627), 3509 states have call predecessors, (3627), 3610 states have call successors, (3627) [2021-11-13 18:51:05,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14468 states to 14468 states and 20044 transitions. [2021-11-13 18:51:05,034 INFO L78 Accepts]: Start accepts. Automaton has 14468 states and 20044 transitions. Word has length 215 [2021-11-13 18:51:05,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 18:51:05,035 INFO L470 AbstractCegarLoop]: Abstraction has 14468 states and 20044 transitions. [2021-11-13 18:51:05,036 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 4 states have internal predecessors, (59), 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) [2021-11-13 18:51:05,036 INFO L276 IsEmpty]: Start isEmpty. Operand 14468 states and 20044 transitions. [2021-11-13 18:51:05,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2021-11-13 18:51:05,042 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:51:05,043 INFO L514 BasicCegarLoop]: trace histogram [15, 15, 11, 11, 11, 11, 11, 11, 5, 5, 5, 4, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 18:51:05,043 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-13 18:51:05,043 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_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-13 18:51:05,044 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:51:05,044 INFO L85 PathProgramCache]: Analyzing trace with hash -1378185684, now seen corresponding path program 1 times [2021-11-13 18:51:05,044 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:51:05,044 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [55946331] [2021-11-13 18:51:05,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:51:05,045 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:51:05,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:51:05,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-13 18:51:05,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:51:05,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:51:05,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:51:05,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-13 18:51:05,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:51:05,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:51:05,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:51:05,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-13 18:51:05,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:51:05,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:51:05,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:51:05,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-13 18:51:05,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:51:05,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:51:05,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:51:05,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-13 18:51:05,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:51:05,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:51:05,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:51:05,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-13 18:51:05,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:51:05,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:51:05,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:51:05,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-13 18:51:05,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:51:05,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:51:05,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:51:05,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-13 18:51:05,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:51:05,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:51:05,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:51:05,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-13 18:51:05,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:51:05,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:51:05,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:51:05,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-11-13 18:51:05,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:51:05,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:51:05,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:51:05,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-11-13 18:51:05,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:51:05,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:51:05,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:51:05,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-11-13 18:51:05,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:51:05,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2021-11-13 18:51:05,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:51:05,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-11-13 18:51:05,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:51:05,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2021-11-13 18:51:05,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:51:05,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2021-11-13 18:51:05,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:51:05,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:51:05,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:51:05,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-11-13 18:51:05,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:51:05,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2021-11-13 18:51:05,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:51:05,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2021-11-13 18:51:05,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:51:05,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2021-11-13 18:51:05,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:51:05,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-13 18:51:05,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:51:05,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2021-11-13 18:51:05,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:51:05,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 217 [2021-11-13 18:51:05,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:51:05,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2021-11-13 18:51:05,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:51:05,706 INFO L134 CoverageAnalysis]: Checked inductivity of 708 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 697 trivial. 0 not checked. [2021-11-13 18:51:05,706 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:51:05,706 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [55946331] [2021-11-13 18:51:05,706 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [55946331] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 18:51:05,707 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:51:05,707 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-13 18:51:05,707 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [154127798] [2021-11-13 18:51:05,707 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 18:51:05,708 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-13 18:51:05,708 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:51:05,709 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-13 18:51:05,709 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-13 18:51:05,709 INFO L87 Difference]: Start difference. First operand 14468 states and 20044 transitions. Second operand has 5 states, 5 states have (on average 14.2) internal successors, (71), 3 states have internal predecessors, (71), 3 states have call successors, (28), 4 states have call predecessors, (28), 1 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) [2021-11-13 18:51:07,756 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:51:08,814 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:51:10,917 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:51:21,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:51:21,152 INFO L93 Difference]: Finished difference Result 44485 states and 62162 transitions. [2021-11-13 18:51:21,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-13 18:51:21,153 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 3 states have internal predecessors, (71), 3 states have call successors, (28), 4 states have call predecessors, (28), 1 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) Word has length 231 [2021-11-13 18:51:21,154 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 18:51:21,302 INFO L225 Difference]: With dead ends: 44485 [2021-11-13 18:51:21,302 INFO L226 Difference]: Without dead ends: 30412 [2021-11-13 18:51:21,383 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 75 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-13 18:51:21,384 INFO L933 BasicCegarLoop]: 3132 mSDtfsCounter, 5384 mSDsluCounter, 3241 mSDsCounter, 0 mSdLazyCounter, 3454 mSolverCounterSat, 3686 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12369.85ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 5681 SdHoareTripleChecker+Valid, 6373 SdHoareTripleChecker+Invalid, 7142 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 64.48ms SdHoareTripleChecker+Time, 3686 IncrementalHoareTripleChecker+Valid, 3454 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13857.39ms IncrementalHoareTripleChecker+Time [2021-11-13 18:51:21,384 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5681 Valid, 6373 Invalid, 7142 Unknown, 0 Unchecked, 64.48ms Time], IncrementalHoareTripleChecker [3686 Valid, 3454 Invalid, 2 Unknown, 0 Unchecked, 13857.39ms Time] [2021-11-13 18:51:21,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30412 states. [2021-11-13 18:51:23,286 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30412 to 27812. [2021-11-13 18:51:23,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27812 states, 19366 states have (on average 1.2748115253537127) internal successors, (24688), 19726 states have internal predecessors, (24688), 6897 states have call successors, (6897), 1565 states have call predecessors, (6897), 1546 states have return successors, (6927), 6740 states have call predecessors, (6927), 6893 states have call successors, (6927) [2021-11-13 18:51:23,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27812 states to 27812 states and 38512 transitions. [2021-11-13 18:51:23,441 INFO L78 Accepts]: Start accepts. Automaton has 27812 states and 38512 transitions. Word has length 231 [2021-11-13 18:51:23,442 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 18:51:23,442 INFO L470 AbstractCegarLoop]: Abstraction has 27812 states and 38512 transitions. [2021-11-13 18:51:23,442 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 3 states have internal predecessors, (71), 3 states have call successors, (28), 4 states have call predecessors, (28), 1 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) [2021-11-13 18:51:23,442 INFO L276 IsEmpty]: Start isEmpty. Operand 27812 states and 38512 transitions. [2021-11-13 18:51:23,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 221 [2021-11-13 18:51:23,450 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:51:23,450 INFO L514 BasicCegarLoop]: trace histogram [15, 15, 11, 11, 11, 11, 11, 11, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 18:51:23,451 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-13 18:51:23,451 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_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-13 18:51:23,451 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:51:23,452 INFO L85 PathProgramCache]: Analyzing trace with hash -1892161539, now seen corresponding path program 1 times [2021-11-13 18:51:23,452 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:51:23,452 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [72808567] [2021-11-13 18:51:23,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:51:23,453 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:51:23,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:51:23,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-13 18:51:23,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:51:23,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:51:23,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:51:23,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-13 18:51:23,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:51:23,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:51:23,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:51:23,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-13 18:51:23,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:51:23,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:51:23,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:51:23,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-13 18:51:23,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:51:23,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:51:23,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:51:23,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-13 18:51:23,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:51:23,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:51:23,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:51:23,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-13 18:51:23,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:51:23,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:51:23,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:51:23,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-13 18:51:23,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:51:23,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:51:23,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:51:23,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-13 18:51:23,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:51:23,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:51:23,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:51:23,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-13 18:51:23,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:51:23,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:51:23,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:51:23,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-11-13 18:51:23,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:51:23,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:51:23,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:51:23,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-11-13 18:51:23,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:51:23,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:51:23,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:51:23,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-11-13 18:51:23,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:51:23,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2021-11-13 18:51:23,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:51:23,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-11-13 18:51:23,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:51:24,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2021-11-13 18:51:24,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:51:24,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2021-11-13 18:51:24,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:51:24,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:51:24,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:51:24,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-11-13 18:51:24,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:51:24,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2021-11-13 18:51:24,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:51:24,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2021-11-13 18:51:24,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:51:24,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2021-11-13 18:51:24,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:51:24,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2021-11-13 18:51:24,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:51:24,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2021-11-13 18:51:24,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:51:24,274 INFO L134 CoverageAnalysis]: Checked inductivity of 697 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 691 trivial. 0 not checked. [2021-11-13 18:51:24,274 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:51:24,274 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [72808567] [2021-11-13 18:51:24,275 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [72808567] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 18:51:24,275 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:51:24,275 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-13 18:51:24,275 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1021091770] [2021-11-13 18:51:24,275 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 18:51:24,276 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-13 18:51:24,276 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:51:24,277 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-13 18:51:24,277 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-13 18:51:24,278 INFO L87 Difference]: Start difference. First operand 27812 states and 38512 transitions. Second operand has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 4 states have internal predecessors, (59), 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) [2021-11-13 18:51:26,274 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:51:31,573 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:51:31,573 INFO L93 Difference]: Finished difference Result 30384 states and 42558 transitions. [2021-11-13 18:51:31,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-13 18:51:31,583 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 4 states have internal predecessors, (59), 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) Word has length 220 [2021-11-13 18:51:31,584 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 18:51:31,688 INFO L225 Difference]: With dead ends: 30384 [2021-11-13 18:51:31,688 INFO L226 Difference]: Without dead ends: 30382 [2021-11-13 18:51:31,697 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 69 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-11-13 18:51:31,698 INFO L933 BasicCegarLoop]: 2540 mSDtfsCounter, 2994 mSDsluCounter, 4768 mSDsCounter, 0 mSdLazyCounter, 2405 mSolverCounterSat, 1259 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5145.17ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 3270 SdHoareTripleChecker+Valid, 7308 SdHoareTripleChecker+Invalid, 3664 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 35.94ms SdHoareTripleChecker+Time, 1259 IncrementalHoareTripleChecker+Valid, 2405 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5710.92ms IncrementalHoareTripleChecker+Time [2021-11-13 18:51:31,699 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3270 Valid, 7308 Invalid, 3664 Unknown, 0 Unchecked, 35.94ms Time], IncrementalHoareTripleChecker [1259 Valid, 2405 Invalid, 0 Unknown, 0 Unchecked, 5710.92ms Time] [2021-11-13 18:51:31,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30382 states. [2021-11-13 18:51:33,456 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30382 to 27816. [2021-11-13 18:51:33,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27816 states, 19369 states have (on average 1.2747689607104136) internal successors, (24691), 19729 states have internal predecessors, (24691), 6897 states have call successors, (6897), 1566 states have call predecessors, (6897), 1547 states have return successors, (6927), 6740 states have call predecessors, (6927), 6893 states have call successors, (6927) [2021-11-13 18:51:33,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27816 states to 27816 states and 38515 transitions. [2021-11-13 18:51:33,772 INFO L78 Accepts]: Start accepts. Automaton has 27816 states and 38515 transitions. Word has length 220 [2021-11-13 18:51:33,773 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 18:51:33,773 INFO L470 AbstractCegarLoop]: Abstraction has 27816 states and 38515 transitions. [2021-11-13 18:51:33,773 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 4 states have internal predecessors, (59), 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) [2021-11-13 18:51:33,774 INFO L276 IsEmpty]: Start isEmpty. Operand 27816 states and 38515 transitions. [2021-11-13 18:51:33,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 238 [2021-11-13 18:51:33,781 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:51:33,782 INFO L514 BasicCegarLoop]: trace histogram [15, 15, 11, 11, 11, 11, 11, 11, 5, 5, 5, 5, 4, 4, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 18:51:33,782 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-13 18:51:33,782 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-13 18:51:33,783 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:51:33,783 INFO L85 PathProgramCache]: Analyzing trace with hash -1413847049, now seen corresponding path program 1 times [2021-11-13 18:51:33,783 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:51:33,783 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1459017160] [2021-11-13 18:51:33,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:51:33,784 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:51:33,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:51:33,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-13 18:51:33,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:51:33,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:51:33,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:51:33,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-13 18:51:33,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:51:33,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:51:33,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:51:33,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-13 18:51:33,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:51:33,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:51:33,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:51:33,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-13 18:51:33,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:51:34,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:51:34,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:51:34,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-13 18:51:34,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:51:34,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:51:34,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:51:34,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-13 18:51:34,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:51:34,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:51:34,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:51:34,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-13 18:51:34,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:51:34,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:51:34,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:51:34,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-13 18:51:34,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:51:34,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:51:34,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:51:34,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-13 18:51:34,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:51:34,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:51:34,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:51:34,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-11-13 18:51:34,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:51:34,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:51:34,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:51:34,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-11-13 18:51:34,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:51:34,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:51:34,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:51:34,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-11-13 18:51:34,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:51:34,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2021-11-13 18:51:34,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:51:34,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-11-13 18:51:34,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:51:34,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2021-11-13 18:51:34,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:51:34,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2021-11-13 18:51:34,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:51:34,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:51:34,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:51:34,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-11-13 18:51:34,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:51:34,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2021-11-13 18:51:34,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:51:34,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2021-11-13 18:51:34,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:51:34,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2021-11-13 18:51:34,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:51:34,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-13 18:51:34,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:51:34,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2021-11-13 18:51:34,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:51:34,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2021-11-13 18:51:34,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:51:34,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2021-11-13 18:51:34,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:51:34,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2021-11-13 18:51:34,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:51:34,255 INFO L134 CoverageAnalysis]: Checked inductivity of 723 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 709 trivial. 0 not checked. [2021-11-13 18:51:34,256 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:51:34,256 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1459017160] [2021-11-13 18:51:34,256 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1459017160] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 18:51:34,256 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:51:34,256 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-13 18:51:34,257 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2143002297] [2021-11-13 18:51:34,257 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 18:51:34,259 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-13 18:51:34,259 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:51:34,259 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-13 18:51:34,259 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-13 18:51:34,260 INFO L87 Difference]: Start difference. First operand 27816 states and 38515 transitions. Second operand has 5 states, 5 states have (on average 14.4) internal successors, (72), 3 states have internal predecessors, (72), 3 states have call successors, (29), 4 states have call predecessors, (29), 1 states have return successors, (27), 3 states have call predecessors, (27), 3 states have call successors, (27) [2021-11-13 18:51:36,305 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:51:37,925 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.62s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:51:40,032 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:51:50,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:51:50,011 INFO L93 Difference]: Finished difference Result 72480 states and 101146 transitions. [2021-11-13 18:51:50,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-13 18:51:50,011 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.4) internal successors, (72), 3 states have internal predecessors, (72), 3 states have call successors, (29), 4 states have call predecessors, (29), 1 states have return successors, (27), 3 states have call predecessors, (27), 3 states have call successors, (27) Word has length 237 [2021-11-13 18:51:50,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 18:51:50,165 INFO L225 Difference]: With dead ends: 72480 [2021-11-13 18:51:50,165 INFO L226 Difference]: Without dead ends: 45059 [2021-11-13 18:51:50,249 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 77 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-13 18:51:50,249 INFO L933 BasicCegarLoop]: 2644 mSDtfsCounter, 5779 mSDsluCounter, 2850 mSDsCounter, 0 mSdLazyCounter, 3418 mSolverCounterSat, 3911 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11980.21ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 6087 SdHoareTripleChecker+Valid, 5494 SdHoareTripleChecker+Invalid, 7331 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 49.45ms SdHoareTripleChecker+Time, 3911 IncrementalHoareTripleChecker+Valid, 3418 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13387.26ms IncrementalHoareTripleChecker+Time [2021-11-13 18:51:50,250 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6087 Valid, 5494 Invalid, 7331 Unknown, 0 Unchecked, 49.45ms Time], IncrementalHoareTripleChecker [3911 Valid, 3418 Invalid, 2 Unknown, 0 Unchecked, 13387.26ms Time] [2021-11-13 18:51:50,290 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45059 states. [2021-11-13 18:51:52,990 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45059 to 41172. [2021-11-13 18:51:53,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41172 states, 28702 states have (on average 1.2760086405128563) internal successors, (36624), 29218 states have internal predecessors, (36624), 10180 states have call successors, (10180), 2311 states have call predecessors, (10180), 2287 states have return successors, (10227), 9971 states have call predecessors, (10227), 10176 states have call successors, (10227) [2021-11-13 18:51:53,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41172 states to 41172 states and 57031 transitions. [2021-11-13 18:51:53,218 INFO L78 Accepts]: Start accepts. Automaton has 41172 states and 57031 transitions. Word has length 237 [2021-11-13 18:51:53,219 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 18:51:53,219 INFO L470 AbstractCegarLoop]: Abstraction has 41172 states and 57031 transitions. [2021-11-13 18:51:53,219 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.4) internal successors, (72), 3 states have internal predecessors, (72), 3 states have call successors, (29), 4 states have call predecessors, (29), 1 states have return successors, (27), 3 states have call predecessors, (27), 3 states have call successors, (27) [2021-11-13 18:51:53,219 INFO L276 IsEmpty]: Start isEmpty. Operand 41172 states and 57031 transitions. [2021-11-13 18:51:53,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 226 [2021-11-13 18:51:53,228 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:51:53,229 INFO L514 BasicCegarLoop]: trace histogram [15, 15, 11, 11, 11, 11, 11, 11, 5, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 18:51:53,229 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-11-13 18:51:53,229 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-13 18:51:53,230 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:51:53,230 INFO L85 PathProgramCache]: Analyzing trace with hash 331270845, now seen corresponding path program 1 times [2021-11-13 18:51:53,230 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:51:53,230 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1036488022] [2021-11-13 18:51:53,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:51:53,231 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:51:53,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:51:53,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-13 18:51:53,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:51:53,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:51:53,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:51:53,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-13 18:51:53,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:51:53,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:51:53,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:51:53,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-13 18:51:53,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:51:53,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:51:53,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:51:53,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-13 18:51:53,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:51:53,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:51:53,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:51:53,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-13 18:51:53,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:51:53,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:51:53,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:51:53,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-13 18:51:53,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:51:53,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:51:53,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:51:53,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-13 18:51:53,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:51:53,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:51:53,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:51:53,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-13 18:51:53,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:51:53,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:51:53,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:51:53,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-13 18:51:53,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:51:53,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:51:53,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:51:53,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-11-13 18:51:53,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:51:53,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:51:53,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:51:53,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-11-13 18:51:53,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:51:53,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:51:53,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:51:53,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-11-13 18:51:53,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:51:53,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2021-11-13 18:51:53,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:51:53,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-11-13 18:51:53,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:51:53,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2021-11-13 18:51:53,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:51:53,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2021-11-13 18:51:53,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:51:53,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:51:53,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:51:53,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-11-13 18:51:53,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:51:53,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2021-11-13 18:51:53,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:51:53,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2021-11-13 18:51:53,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:51:53,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2021-11-13 18:51:53,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:51:53,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2021-11-13 18:51:53,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:51:53,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2021-11-13 18:51:53,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:51:53,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2021-11-13 18:51:53,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:51:53,826 INFO L134 CoverageAnalysis]: Checked inductivity of 711 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 703 trivial. 0 not checked. [2021-11-13 18:51:53,827 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:51:53,827 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1036488022] [2021-11-13 18:51:53,827 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1036488022] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 18:51:53,827 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:51:53,828 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-13 18:51:53,828 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1684544676] [2021-11-13 18:51:53,828 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 18:51:53,829 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-13 18:51:53,829 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:51:53,830 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-13 18:51:53,830 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-13 18:51:53,830 INFO L87 Difference]: Start difference. First operand 41172 states and 57031 transitions. Second operand has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (26), 4 states have call predecessors, (26), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2021-11-13 18:51:55,874 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:52:02,052 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:52:02,052 INFO L93 Difference]: Finished difference Result 45027 states and 63092 transitions. [2021-11-13 18:52:02,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-13 18:52:02,053 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (26), 4 states have call predecessors, (26), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) Word has length 225 [2021-11-13 18:52:02,053 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 18:52:02,210 INFO L225 Difference]: With dead ends: 45027 [2021-11-13 18:52:02,210 INFO L226 Difference]: Without dead ends: 45025 [2021-11-13 18:52:02,230 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 71 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-11-13 18:52:02,231 INFO L933 BasicCegarLoop]: 2527 mSDtfsCounter, 3007 mSDsluCounter, 4743 mSDsCounter, 0 mSdLazyCounter, 2401 mSolverCounterSat, 1261 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5250.97ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 3282 SdHoareTripleChecker+Valid, 7270 SdHoareTripleChecker+Invalid, 3663 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 34.23ms SdHoareTripleChecker+Time, 1261 IncrementalHoareTripleChecker+Valid, 2401 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5834.83ms IncrementalHoareTripleChecker+Time [2021-11-13 18:52:02,231 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3282 Valid, 7270 Invalid, 3663 Unknown, 0 Unchecked, 34.23ms Time], IncrementalHoareTripleChecker [1261 Valid, 2401 Invalid, 1 Unknown, 0 Unchecked, 5834.83ms Time] [2021-11-13 18:52:02,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45025 states. [2021-11-13 18:52:04,651 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45025 to 41176. [2021-11-13 18:52:04,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41176 states, 28705 states have (on average 1.2759797944608953) internal successors, (36627), 29221 states have internal predecessors, (36627), 10180 states have call successors, (10180), 2312 states have call predecessors, (10180), 2288 states have return successors, (10227), 9971 states have call predecessors, (10227), 10176 states have call successors, (10227) [2021-11-13 18:52:04,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41176 states to 41176 states and 57034 transitions. [2021-11-13 18:52:04,903 INFO L78 Accepts]: Start accepts. Automaton has 41176 states and 57034 transitions. Word has length 225 [2021-11-13 18:52:04,903 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 18:52:04,904 INFO L470 AbstractCegarLoop]: Abstraction has 41176 states and 57034 transitions. [2021-11-13 18:52:04,904 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (26), 4 states have call predecessors, (26), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2021-11-13 18:52:04,904 INFO L276 IsEmpty]: Start isEmpty. Operand 41176 states and 57034 transitions. [2021-11-13 18:52:04,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 231 [2021-11-13 18:52:04,914 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:52:04,914 INFO L514 BasicCegarLoop]: trace histogram [15, 15, 11, 11, 11, 11, 11, 11, 6, 5, 5, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 18:52:04,915 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-11-13 18:52:04,915 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-13 18:52:04,915 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:52:04,916 INFO L85 PathProgramCache]: Analyzing trace with hash 1643427773, now seen corresponding path program 1 times [2021-11-13 18:52:04,916 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:52:04,916 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [709026653] [2021-11-13 18:52:04,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:52:04,917 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:52:05,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:52:05,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-13 18:52:05,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:52:05,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:52:05,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:52:05,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-13 18:52:05,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:52:05,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:52:05,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:52:05,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-13 18:52:05,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:52:05,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:52:05,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:52:05,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-13 18:52:05,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:52:05,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:52:05,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:52:05,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-13 18:52:05,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:52:05,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:52:05,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:52:05,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-13 18:52:05,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:52:05,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:52:05,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:52:05,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-13 18:52:05,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:52:05,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:52:05,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:52:05,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-13 18:52:05,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:52:05,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:52:05,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:52:05,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-13 18:52:05,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:52:05,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:52:05,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:52:05,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-11-13 18:52:05,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:52:05,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:52:05,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:52:05,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-11-13 18:52:05,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:52:05,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:52:05,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:52:05,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-11-13 18:52:05,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:52:05,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2021-11-13 18:52:05,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:52:05,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-11-13 18:52:05,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:52:05,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2021-11-13 18:52:05,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:52:05,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2021-11-13 18:52:05,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:52:05,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:52:05,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:52:05,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-11-13 18:52:05,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:52:05,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2021-11-13 18:52:05,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:52:05,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2021-11-13 18:52:05,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:52:05,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2021-11-13 18:52:05,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:52:05,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2021-11-13 18:52:05,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:52:05,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2021-11-13 18:52:05,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:52:05,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2021-11-13 18:52:05,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:52:05,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2021-11-13 18:52:05,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:52:05,590 INFO L134 CoverageAnalysis]: Checked inductivity of 729 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 719 trivial. 0 not checked. [2021-11-13 18:52:05,590 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:52:05,591 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [709026653] [2021-11-13 18:52:05,591 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [709026653] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 18:52:05,591 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:52:05,591 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-13 18:52:05,592 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1165307292] [2021-11-13 18:52:05,592 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 18:52:05,592 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-13 18:52:05,593 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:52:05,593 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-13 18:52:05,593 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-13 18:52:05,594 INFO L87 Difference]: Start difference. First operand 41176 states and 57034 transitions. Second operand has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (27), 4 states have call predecessors, (27), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2021-11-13 18:52:07,644 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:52:13,840 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:52:13,841 INFO L93 Difference]: Finished difference Result 45031 states and 63095 transitions. [2021-11-13 18:52:13,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-13 18:52:13,841 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (27), 4 states have call predecessors, (27), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) Word has length 230 [2021-11-13 18:52:13,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 18:52:14,136 INFO L225 Difference]: With dead ends: 45031 [2021-11-13 18:52:14,137 INFO L226 Difference]: Without dead ends: 45029 [2021-11-13 18:52:14,152 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 73 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-11-13 18:52:14,153 INFO L933 BasicCegarLoop]: 2548 mSDtfsCounter, 2989 mSDsluCounter, 4784 mSDsCounter, 0 mSdLazyCounter, 2404 mSolverCounterSat, 1251 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5501.98ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 3265 SdHoareTripleChecker+Valid, 7332 SdHoareTripleChecker+Invalid, 3656 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 33.16ms SdHoareTripleChecker+Time, 1251 IncrementalHoareTripleChecker+Valid, 2404 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6077.15ms IncrementalHoareTripleChecker+Time [2021-11-13 18:52:14,153 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3265 Valid, 7332 Invalid, 3656 Unknown, 0 Unchecked, 33.16ms Time], IncrementalHoareTripleChecker [1251 Valid, 2404 Invalid, 1 Unknown, 0 Unchecked, 6077.15ms Time] [2021-11-13 18:52:14,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45029 states. [2021-11-13 18:52:16,735 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45029 to 41180. [2021-11-13 18:52:16,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41180 states, 28708 states have (on average 1.2759509544377874) internal successors, (36630), 29224 states have internal predecessors, (36630), 10180 states have call successors, (10180), 2313 states have call predecessors, (10180), 2289 states have return successors, (10227), 9971 states have call predecessors, (10227), 10176 states have call successors, (10227) [2021-11-13 18:52:16,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41180 states to 41180 states and 57037 transitions. [2021-11-13 18:52:16,946 INFO L78 Accepts]: Start accepts. Automaton has 41180 states and 57037 transitions. Word has length 230 [2021-11-13 18:52:16,946 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 18:52:16,947 INFO L470 AbstractCegarLoop]: Abstraction has 41180 states and 57037 transitions. [2021-11-13 18:52:16,947 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (27), 4 states have call predecessors, (27), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2021-11-13 18:52:16,947 INFO L276 IsEmpty]: Start isEmpty. Operand 41180 states and 57037 transitions. [2021-11-13 18:52:16,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 236 [2021-11-13 18:52:16,955 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:52:16,956 INFO L514 BasicCegarLoop]: trace histogram [15, 15, 11, 11, 11, 11, 11, 11, 7, 6, 6, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 18:52:16,956 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-11-13 18:52:16,956 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-13 18:52:16,957 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:52:16,957 INFO L85 PathProgramCache]: Analyzing trace with hash 428343933, now seen corresponding path program 1 times [2021-11-13 18:52:16,957 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:52:16,957 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [285000878] [2021-11-13 18:52:16,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:52:16,958 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:52:17,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:52:17,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-13 18:52:17,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:52:17,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:52:17,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:52:17,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-13 18:52:17,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:52:17,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:52:17,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:52:17,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-13 18:52:17,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:52:17,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:52:17,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:52:17,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-13 18:52:17,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:52:17,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:52:17,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:52:17,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-13 18:52:17,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:52:17,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:52:17,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:52:17,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-13 18:52:17,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:52:17,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:52:17,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:52:17,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-13 18:52:17,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:52:17,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:52:17,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:52:17,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-13 18:52:17,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:52:17,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:52:17,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:52:17,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-13 18:52:17,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:52:17,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:52:17,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:52:17,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-11-13 18:52:17,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:52:17,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:52:17,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:52:17,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-11-13 18:52:17,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:52:17,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:52:17,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:52:17,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-11-13 18:52:17,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:52:17,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2021-11-13 18:52:17,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:52:17,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-11-13 18:52:17,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:52:17,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2021-11-13 18:52:17,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:52:17,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2021-11-13 18:52:17,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:52:17,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:52:17,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:52:17,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-11-13 18:52:17,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:52:17,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2021-11-13 18:52:17,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:52:17,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2021-11-13 18:52:17,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:52:17,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2021-11-13 18:52:17,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:52:17,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2021-11-13 18:52:17,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:52:17,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2021-11-13 18:52:17,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:52:17,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2021-11-13 18:52:17,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:52:17,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2021-11-13 18:52:17,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:52:17,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2021-11-13 18:52:17,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:52:17,850 INFO L134 CoverageAnalysis]: Checked inductivity of 751 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 739 trivial. 0 not checked. [2021-11-13 18:52:17,851 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:52:17,851 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [285000878] [2021-11-13 18:52:17,851 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [285000878] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 18:52:17,851 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:52:17,852 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-13 18:52:17,852 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [893975669] [2021-11-13 18:52:17,852 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 18:52:17,853 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-13 18:52:17,853 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:52:17,853 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-13 18:52:17,854 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-13 18:52:17,854 INFO L87 Difference]: Start difference. First operand 41180 states and 57037 transitions. Second operand has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (28), 4 states have call predecessors, (28), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2021-11-13 18:52:19,783 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.93s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:52:26,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:52:26,366 INFO L93 Difference]: Finished difference Result 47003 states and 65027 transitions. [2021-11-13 18:52:26,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-13 18:52:26,367 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (28), 4 states have call predecessors, (28), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) Word has length 235 [2021-11-13 18:52:26,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 18:52:26,680 INFO L225 Difference]: With dead ends: 47003 [2021-11-13 18:52:26,681 INFO L226 Difference]: Without dead ends: 47001 [2021-11-13 18:52:26,697 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 75 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-11-13 18:52:26,697 INFO L933 BasicCegarLoop]: 2611 mSDtfsCounter, 2702 mSDsluCounter, 5090 mSDsCounter, 0 mSdLazyCounter, 2753 mSolverCounterSat, 1175 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5465.48ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2984 SdHoareTripleChecker+Valid, 7701 SdHoareTripleChecker+Invalid, 3928 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 36.21ms SdHoareTripleChecker+Time, 1175 IncrementalHoareTripleChecker+Valid, 2753 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6074.05ms IncrementalHoareTripleChecker+Time [2021-11-13 18:52:26,698 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2984 Valid, 7701 Invalid, 3928 Unknown, 0 Unchecked, 36.21ms Time], IncrementalHoareTripleChecker [1175 Valid, 2753 Invalid, 0 Unknown, 0 Unchecked, 6074.05ms Time] [2021-11-13 18:52:26,732 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47001 states. [2021-11-13 18:52:29,151 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47001 to 43062. [2021-11-13 18:52:29,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43062 states, 29995 states have (on average 1.2677112852142023) internal successors, (38025), 30523 states have internal predecessors, (38025), 10390 states have call successors, (10390), 2698 states have call predecessors, (10390), 2674 states have return successors, (10437), 10181 states have call predecessors, (10437), 10386 states have call successors, (10437) [2021-11-13 18:52:29,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43062 states to 43062 states and 58852 transitions. [2021-11-13 18:52:29,359 INFO L78 Accepts]: Start accepts. Automaton has 43062 states and 58852 transitions. Word has length 235 [2021-11-13 18:52:29,359 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 18:52:29,359 INFO L470 AbstractCegarLoop]: Abstraction has 43062 states and 58852 transitions. [2021-11-13 18:52:29,360 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (28), 4 states have call predecessors, (28), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2021-11-13 18:52:29,360 INFO L276 IsEmpty]: Start isEmpty. Operand 43062 states and 58852 transitions. [2021-11-13 18:52:29,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2021-11-13 18:52:29,369 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:52:29,370 INFO L514 BasicCegarLoop]: trace histogram [15, 15, 11, 11, 11, 11, 11, 11, 8, 7, 7, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 18:52:29,370 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-11-13 18:52:29,370 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-13 18:52:29,371 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:52:29,371 INFO L85 PathProgramCache]: Analyzing trace with hash -1271756931, now seen corresponding path program 1 times [2021-11-13 18:52:29,371 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:52:29,371 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [690470608] [2021-11-13 18:52:29,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:52:29,372 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:52:29,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:52:29,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-13 18:52:29,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:52:29,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:52:29,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:52:29,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-13 18:52:29,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:52:29,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:52:29,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:52:29,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-13 18:52:29,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:52:29,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:52:29,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:52:29,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-13 18:52:29,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:52:29,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:52:29,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:52:29,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-13 18:52:29,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:52:29,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:52:29,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:52:29,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-13 18:52:29,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:52:29,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:52:29,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:52:29,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-13 18:52:29,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:52:29,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:52:29,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:52:29,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-13 18:52:29,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:52:29,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:52:29,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:52:29,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-13 18:52:29,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:52:29,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:52:29,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:52:29,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-11-13 18:52:29,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:52:29,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:52:29,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:52:29,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-11-13 18:52:29,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:52:29,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:52:29,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:52:29,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-11-13 18:52:29,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:52:29,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2021-11-13 18:52:29,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:52:29,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-11-13 18:52:29,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:52:29,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2021-11-13 18:52:29,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:52:29,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2021-11-13 18:52:29,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:52:29,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:52:29,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:52:29,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-11-13 18:52:29,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:52:29,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2021-11-13 18:52:29,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:52:29,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2021-11-13 18:52:29,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:52:29,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2021-11-13 18:52:29,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:52:29,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2021-11-13 18:52:29,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:52:29,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2021-11-13 18:52:29,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:52:29,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2021-11-13 18:52:29,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:52:29,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2021-11-13 18:52:29,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:52:29,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2021-11-13 18:52:29,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:52:29,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2021-11-13 18:52:29,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:52:29,994 INFO L134 CoverageAnalysis]: Checked inductivity of 777 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 763 trivial. 0 not checked. [2021-11-13 18:52:29,994 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:52:29,995 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [690470608] [2021-11-13 18:52:29,995 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [690470608] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 18:52:29,995 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:52:29,995 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-13 18:52:29,995 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2122099051] [2021-11-13 18:52:29,996 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 18:52:29,996 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-13 18:52:29,996 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:52:29,997 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-13 18:52:29,997 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-13 18:52:29,997 INFO L87 Difference]: Start difference. First operand 43062 states and 58852 transitions. Second operand has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (29), 4 states have call predecessors, (29), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2021-11-13 18:52:32,034 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:52:38,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:52:38,582 INFO L93 Difference]: Finished difference Result 47007 states and 65030 transitions. [2021-11-13 18:52:38,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-13 18:52:38,582 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (29), 4 states have call predecessors, (29), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) Word has length 240 [2021-11-13 18:52:38,583 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 18:52:38,739 INFO L225 Difference]: With dead ends: 47007 [2021-11-13 18:52:38,739 INFO L226 Difference]: Without dead ends: 47005 [2021-11-13 18:52:38,760 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 77 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-11-13 18:52:38,761 INFO L933 BasicCegarLoop]: 2527 mSDtfsCounter, 3006 mSDsluCounter, 4743 mSDsCounter, 0 mSdLazyCounter, 2401 mSolverCounterSat, 1260 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5121.97ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 3281 SdHoareTripleChecker+Valid, 7270 SdHoareTripleChecker+Invalid, 3662 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 34.27ms SdHoareTripleChecker+Time, 1260 IncrementalHoareTripleChecker+Valid, 2401 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5694.26ms IncrementalHoareTripleChecker+Time [2021-11-13 18:52:38,761 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3281 Valid, 7270 Invalid, 3662 Unknown, 0 Unchecked, 34.27ms Time], IncrementalHoareTripleChecker [1260 Valid, 2401 Invalid, 1 Unknown, 0 Unchecked, 5694.26ms Time] [2021-11-13 18:52:38,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47005 states. [2021-11-13 18:52:41,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47005 to 43066. [2021-11-13 18:52:41,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43066 states, 29998 states have (on average 1.26768451230082) internal successors, (38028), 30526 states have internal predecessors, (38028), 10390 states have call successors, (10390), 2699 states have call predecessors, (10390), 2675 states have return successors, (10437), 10181 states have call predecessors, (10437), 10386 states have call successors, (10437) [2021-11-13 18:52:41,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43066 states to 43066 states and 58855 transitions. [2021-11-13 18:52:41,768 INFO L78 Accepts]: Start accepts. Automaton has 43066 states and 58855 transitions. Word has length 240 [2021-11-13 18:52:41,768 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 18:52:41,768 INFO L470 AbstractCegarLoop]: Abstraction has 43066 states and 58855 transitions. [2021-11-13 18:52:41,769 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (29), 4 states have call predecessors, (29), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2021-11-13 18:52:41,769 INFO L276 IsEmpty]: Start isEmpty. Operand 43066 states and 58855 transitions. [2021-11-13 18:52:41,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 246 [2021-11-13 18:52:41,778 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:52:41,779 INFO L514 BasicCegarLoop]: trace histogram [15, 15, 11, 11, 11, 11, 11, 11, 9, 8, 8, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 18:52:41,779 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-11-13 18:52:41,779 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-13 18:52:41,780 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:52:41,780 INFO L85 PathProgramCache]: Analyzing trace with hash 678443581, now seen corresponding path program 1 times [2021-11-13 18:52:41,780 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:52:41,780 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [37821982] [2021-11-13 18:52:41,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:52:41,781 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:52:41,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:52:42,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-13 18:52:42,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:52:42,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:52:42,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:52:42,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-13 18:52:42,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:52:42,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:52:42,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:52:42,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-13 18:52:42,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:52:42,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:52:42,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:52:42,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-13 18:52:42,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:52:42,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:52:42,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:52:42,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-13 18:52:42,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:52:42,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:52:42,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:52:42,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-13 18:52:42,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:52:42,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:52:42,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:52:42,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-13 18:52:42,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:52:42,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:52:42,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:52:42,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-13 18:52:42,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:52:42,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:52:42,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:52:42,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-13 18:52:42,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:52:42,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:52:42,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:52:42,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-11-13 18:52:42,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:52:42,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:52:42,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:52:42,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-11-13 18:52:42,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:52:42,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:52:42,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:52:42,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-11-13 18:52:42,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:52:42,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2021-11-13 18:52:42,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:52:42,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-11-13 18:52:42,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:52:42,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2021-11-13 18:52:42,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:52:42,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2021-11-13 18:52:42,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:52:42,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:52:42,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:52:42,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-11-13 18:52:42,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:52:42,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2021-11-13 18:52:42,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:52:42,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2021-11-13 18:52:42,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:52:42,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2021-11-13 18:52:42,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:52:42,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2021-11-13 18:52:42,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:52:42,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2021-11-13 18:52:42,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:52:42,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2021-11-13 18:52:42,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:52:42,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2021-11-13 18:52:42,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:52:42,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2021-11-13 18:52:42,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:52:42,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2021-11-13 18:52:42,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:52:42,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2021-11-13 18:52:42,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:52:42,392 INFO L134 CoverageAnalysis]: Checked inductivity of 807 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 791 trivial. 0 not checked. [2021-11-13 18:52:42,392 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:52:42,393 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [37821982] [2021-11-13 18:52:42,393 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [37821982] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 18:52:42,393 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:52:42,393 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-13 18:52:42,393 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [997651367] [2021-11-13 18:52:42,394 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 18:52:42,394 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-13 18:52:42,395 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:52:42,395 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-13 18:52:42,395 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-13 18:52:42,395 INFO L87 Difference]: Start difference. First operand 43066 states and 58855 transitions. Second operand has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (30), 4 states have call predecessors, (30), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2021-11-13 18:52:44,441 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []