./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-irda-via-ircc.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version b5237d83 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52a7dc1a-96e7-4d40-bf64-3b76a3d2bbd7/bin/uautomizer-vX5HgA9Q3a/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52a7dc1a-96e7-4d40-bf64-3b76a3d2bbd7/bin/uautomizer-vX5HgA9Q3a/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52a7dc1a-96e7-4d40-bf64-3b76a3d2bbd7/bin/uautomizer-vX5HgA9Q3a/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52a7dc1a-96e7-4d40-bf64-3b76a3d2bbd7/bin/uautomizer-vX5HgA9Q3a/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-irda-via-ircc.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52a7dc1a-96e7-4d40-bf64-3b76a3d2bbd7/bin/uautomizer-vX5HgA9Q3a/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52a7dc1a-96e7-4d40-bf64-3b76a3d2bbd7/bin/uautomizer-vX5HgA9Q3a --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 67e7778ced54570c612880d3f2f5d48e6e2d3dc55afd632628e45d31cdc74c58 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-b5237d8 [2022-11-21 17:04:15,797 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-21 17:04:15,801 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-21 17:04:15,841 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-21 17:04:15,842 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-21 17:04:15,843 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-21 17:04:15,845 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-21 17:04:15,848 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-21 17:04:15,855 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-21 17:04:15,864 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-21 17:04:15,866 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-21 17:04:15,868 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-21 17:04:15,871 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-21 17:04:15,874 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-21 17:04:15,879 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-21 17:04:15,882 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-21 17:04:15,885 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-21 17:04:15,886 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-21 17:04:15,889 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-21 17:04:15,892 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-21 17:04:15,899 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-21 17:04:15,901 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-21 17:04:15,903 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-21 17:04:15,906 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-21 17:04:15,910 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-21 17:04:15,913 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-21 17:04:15,914 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-21 17:04:15,915 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-21 17:04:15,917 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-21 17:04:15,920 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-21 17:04:15,922 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-21 17:04:15,923 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-21 17:04:15,925 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-21 17:04:15,927 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-21 17:04:15,928 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-21 17:04:15,929 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-21 17:04:15,930 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-21 17:04:15,930 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-21 17:04:15,931 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-21 17:04:15,932 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-21 17:04:15,933 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-21 17:04:15,934 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52a7dc1a-96e7-4d40-bf64-3b76a3d2bbd7/bin/uautomizer-vX5HgA9Q3a/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-11-21 17:04:15,978 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-21 17:04:15,982 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-21 17:04:15,983 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-21 17:04:15,983 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-21 17:04:15,984 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-21 17:04:15,985 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-21 17:04:15,985 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-21 17:04:15,986 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-21 17:04:15,986 INFO L138 SettingsManager]: * Use SBE=true [2022-11-21 17:04:15,986 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-21 17:04:15,988 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-21 17:04:15,988 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-21 17:04:15,989 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-21 17:04:15,989 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-21 17:04:15,989 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-21 17:04:15,989 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-21 17:04:15,990 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-21 17:04:15,990 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-21 17:04:15,990 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-21 17:04:15,990 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-21 17:04:15,991 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-21 17:04:15,991 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 17:04:15,991 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-21 17:04:15,992 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-21 17:04:15,992 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-21 17:04:15,992 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-21 17:04:15,992 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-21 17:04:15,993 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-21 17:04:15,993 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-21 17:04:15,994 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-21 17:04:15,994 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_52a7dc1a-96e7-4d40-bf64-3b76a3d2bbd7/bin/uautomizer-vX5HgA9Q3a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52a7dc1a-96e7-4d40-bf64-3b76a3d2bbd7/bin/uautomizer-vX5HgA9Q3a Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 67e7778ced54570c612880d3f2f5d48e6e2d3dc55afd632628e45d31cdc74c58 [2022-11-21 17:04:16,325 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-21 17:04:16,352 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-21 17:04:16,355 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-21 17:04:16,357 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-21 17:04:16,358 INFO L275 PluginConnector]: CDTParser initialized [2022-11-21 17:04:16,359 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52a7dc1a-96e7-4d40-bf64-3b76a3d2bbd7/bin/uautomizer-vX5HgA9Q3a/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-irda-via-ircc.cil.i [2022-11-21 17:04:19,837 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-21 17:04:20,581 INFO L351 CDTParser]: Found 1 translation units. [2022-11-21 17:04:20,582 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52a7dc1a-96e7-4d40-bf64-3b76a3d2bbd7/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-irda-via-ircc.cil.i [2022-11-21 17:04:20,647 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52a7dc1a-96e7-4d40-bf64-3b76a3d2bbd7/bin/uautomizer-vX5HgA9Q3a/data/92ff1402c/eb9c1b320ee5438d9523b4a63dd7ab82/FLAG6e2a04961 [2022-11-21 17:04:20,669 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52a7dc1a-96e7-4d40-bf64-3b76a3d2bbd7/bin/uautomizer-vX5HgA9Q3a/data/92ff1402c/eb9c1b320ee5438d9523b4a63dd7ab82 [2022-11-21 17:04:20,676 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-21 17:04:20,679 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-21 17:04:20,681 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-21 17:04:20,681 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-21 17:04:20,686 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-21 17:04:20,687 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 05:04:20" (1/1) ... [2022-11-21 17:04:20,688 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5e84f073 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:04:20, skipping insertion in model container [2022-11-21 17:04:20,688 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 05:04:20" (1/1) ... [2022-11-21 17:04:20,697 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-21 17:04:20,901 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-21 17:04:24,306 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52a7dc1a-96e7-4d40-bf64-3b76a3d2bbd7/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-irda-via-ircc.cil.i[329615,329628] [2022-11-21 17:04:24,314 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52a7dc1a-96e7-4d40-bf64-3b76a3d2bbd7/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-irda-via-ircc.cil.i[329784,329797] [2022-11-21 17:04:24,315 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52a7dc1a-96e7-4d40-bf64-3b76a3d2bbd7/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-irda-via-ircc.cil.i[329951,329964] [2022-11-21 17:04:24,316 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52a7dc1a-96e7-4d40-bf64-3b76a3d2bbd7/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-irda-via-ircc.cil.i[330119,330132] [2022-11-21 17:04:24,333 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 17:04:24,383 INFO L203 MainTranslator]: Completed pre-run [2022-11-21 17:04:24,942 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52a7dc1a-96e7-4d40-bf64-3b76a3d2bbd7/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-irda-via-ircc.cil.i[329615,329628] [2022-11-21 17:04:24,942 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52a7dc1a-96e7-4d40-bf64-3b76a3d2bbd7/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-irda-via-ircc.cil.i[329784,329797] [2022-11-21 17:04:24,943 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52a7dc1a-96e7-4d40-bf64-3b76a3d2bbd7/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-irda-via-ircc.cil.i[329951,329964] [2022-11-21 17:04:24,944 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52a7dc1a-96e7-4d40-bf64-3b76a3d2bbd7/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-irda-via-ircc.cil.i[330119,330132] [2022-11-21 17:04:24,955 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 17:04:25,173 INFO L208 MainTranslator]: Completed translation [2022-11-21 17:04:25,174 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:04:25 WrapperNode [2022-11-21 17:04:25,174 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-21 17:04:25,176 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-21 17:04:25,176 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-21 17:04:25,177 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-21 17:04:25,187 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:04:25" (1/1) ... [2022-11-21 17:04:25,314 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:04:25" (1/1) ... [2022-11-21 17:04:25,561 INFO L138 Inliner]: procedures = 395, calls = 2062, calls flagged for inlining = 159, calls inlined = 138, statements flattened = 4268 [2022-11-21 17:04:25,562 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-21 17:04:25,563 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-21 17:04:25,563 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-21 17:04:25,563 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-21 17:04:25,575 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:04:25" (1/1) ... [2022-11-21 17:04:25,575 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:04:25" (1/1) ... [2022-11-21 17:04:25,604 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:04:25" (1/1) ... [2022-11-21 17:04:25,605 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:04:25" (1/1) ... [2022-11-21 17:04:25,775 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:04:25" (1/1) ... [2022-11-21 17:04:25,806 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:04:25" (1/1) ... [2022-11-21 17:04:25,842 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:04:25" (1/1) ... [2022-11-21 17:04:25,874 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:04:25" (1/1) ... [2022-11-21 17:04:25,910 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-21 17:04:25,913 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-21 17:04:25,913 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-21 17:04:25,916 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-21 17:04:25,917 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:04:25" (1/1) ... [2022-11-21 17:04:25,926 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 17:04:25,943 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52a7dc1a-96e7-4d40-bf64-3b76a3d2bbd7/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 17:04:25,958 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52a7dc1a-96e7-4d40-bf64-3b76a3d2bbd7/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-21 17:04:25,977 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52a7dc1a-96e7-4d40-bf64-3b76a3d2bbd7/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-21 17:04:26,006 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-11-21 17:04:26,006 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-11-21 17:04:26,007 INFO L130 BoogieDeclarations]: Found specification of procedure RxCurCount [2022-11-21 17:04:26,007 INFO L138 BoogieDeclarations]: Found implementation of procedure RxCurCount [2022-11-21 17:04:26,007 INFO L130 BoogieDeclarations]: Found specification of procedure irda_setup_dma [2022-11-21 17:04:26,007 INFO L138 BoogieDeclarations]: Found implementation of procedure irda_setup_dma [2022-11-21 17:04:26,007 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2022-11-21 17:04:26,008 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2022-11-21 17:04:26,008 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-21 17:04:26,008 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-21 17:04:26,008 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_73 [2022-11-21 17:04:26,008 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_73 [2022-11-21 17:04:26,009 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2022-11-21 17:04:26,009 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2022-11-21 17:04:26,009 INFO L130 BoogieDeclarations]: Found specification of procedure CheckRegBit [2022-11-21 17:04:26,009 INFO L138 BoogieDeclarations]: Found implementation of procedure CheckRegBit [2022-11-21 17:04:26,010 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-11-21 17:04:26,010 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-11-21 17:04:26,010 INFO L130 BoogieDeclarations]: Found specification of procedure via_remove_one [2022-11-21 17:04:26,010 INFO L138 BoogieDeclarations]: Found implementation of procedure via_remove_one [2022-11-21 17:04:26,010 INFO L130 BoogieDeclarations]: Found specification of procedure via_ircc_change_speed [2022-11-21 17:04:26,011 INFO L138 BoogieDeclarations]: Found implementation of procedure via_ircc_change_speed [2022-11-21 17:04:26,011 INFO L130 BoogieDeclarations]: Found specification of procedure dma_zalloc_coherent [2022-11-21 17:04:26,011 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_zalloc_coherent [2022-11-21 17:04:26,011 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-11-21 17:04:26,011 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-11-21 17:04:26,012 INFO L130 BoogieDeclarations]: Found specification of procedure SetPulseWidth [2022-11-21 17:04:26,012 INFO L138 BoogieDeclarations]: Found implementation of procedure SetPulseWidth [2022-11-21 17:04:26,012 INFO L130 BoogieDeclarations]: Found specification of procedure Tdelay [2022-11-21 17:04:26,012 INFO L138 BoogieDeclarations]: Found implementation of procedure Tdelay [2022-11-21 17:04:26,012 INFO L130 BoogieDeclarations]: Found specification of procedure netif_rx [2022-11-21 17:04:26,013 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_rx [2022-11-21 17:04:26,013 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-11-21 17:04:26,013 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-11-21 17:04:26,013 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-21 17:04:26,014 INFO L130 BoogieDeclarations]: Found specification of procedure ClkTx [2022-11-21 17:04:26,014 INFO L138 BoogieDeclarations]: Found implementation of procedure ClkTx [2022-11-21 17:04:26,014 INFO L130 BoogieDeclarations]: Found specification of procedure WriteLPCReg [2022-11-21 17:04:26,014 INFO L138 BoogieDeclarations]: Found implementation of procedure WriteLPCReg [2022-11-21 17:04:26,014 INFO L130 BoogieDeclarations]: Found specification of procedure capable [2022-11-21 17:04:26,015 INFO L138 BoogieDeclarations]: Found implementation of procedure capable [2022-11-21 17:04:26,015 INFO L130 BoogieDeclarations]: Found specification of procedure CommonInit [2022-11-21 17:04:26,015 INFO L138 BoogieDeclarations]: Found implementation of procedure CommonInit [2022-11-21 17:04:26,015 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-11-21 17:04:26,015 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-11-21 17:04:26,016 INFO L130 BoogieDeclarations]: Found specification of procedure via_ircc_change_dongle_speed [2022-11-21 17:04:26,016 INFO L138 BoogieDeclarations]: Found implementation of procedure via_ircc_change_dongle_speed [2022-11-21 17:04:26,016 INFO L130 BoogieDeclarations]: Found specification of procedure ReadLPCReg [2022-11-21 17:04:26,016 INFO L138 BoogieDeclarations]: Found implementation of procedure ReadLPCReg [2022-11-21 17:04:26,017 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-11-21 17:04:26,017 INFO L130 BoogieDeclarations]: Found specification of procedure free_dma [2022-11-21 17:04:26,017 INFO L138 BoogieDeclarations]: Found implementation of procedure free_dma [2022-11-21 17:04:26,017 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_lock_of_via_ircc_cb [2022-11-21 17:04:26,017 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_lock_of_via_ircc_cb [2022-11-21 17:04:26,018 INFO L130 BoogieDeclarations]: Found specification of procedure via_ircc_dma_receive [2022-11-21 17:04:26,018 INFO L138 BoogieDeclarations]: Found implementation of procedure via_ircc_dma_receive [2022-11-21 17:04:26,018 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-11-21 17:04:26,018 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-11-21 17:04:26,018 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-21 17:04:26,019 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-11-21 17:04:26,019 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-11-21 17:04:26,019 INFO L130 BoogieDeclarations]: Found specification of procedure via_ircc_net_close [2022-11-21 17:04:26,019 INFO L138 BoogieDeclarations]: Found implementation of procedure via_ircc_net_close [2022-11-21 17:04:26,019 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-21 17:04:26,020 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-21 17:04:26,020 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-21 17:04:26,020 INFO L130 BoogieDeclarations]: Found specification of procedure CkRxRecv [2022-11-21 17:04:26,020 INFO L138 BoogieDeclarations]: Found implementation of procedure CkRxRecv [2022-11-21 17:04:26,020 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2022-11-21 17:04:26,021 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2022-11-21 17:04:26,021 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2022-11-21 17:04:26,021 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2022-11-21 17:04:26,021 INFO L130 BoogieDeclarations]: Found specification of procedure irda_get_next_speed [2022-11-21 17:04:26,021 INFO L138 BoogieDeclarations]: Found implementation of procedure irda_get_next_speed [2022-11-21 17:04:26,022 INFO L130 BoogieDeclarations]: Found specification of procedure ReadReg [2022-11-21 17:04:26,022 INFO L138 BoogieDeclarations]: Found implementation of procedure ReadReg [2022-11-21 17:04:26,022 INFO L130 BoogieDeclarations]: Found specification of procedure via_ircc_open [2022-11-21 17:04:26,022 INFO L138 BoogieDeclarations]: Found implementation of procedure via_ircc_open [2022-11-21 17:04:26,022 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2022-11-21 17:04:26,023 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2022-11-21 17:04:26,023 INFO L130 BoogieDeclarations]: Found specification of procedure WriteRegBit [2022-11-21 17:04:26,023 INFO L138 BoogieDeclarations]: Found implementation of procedure WriteRegBit [2022-11-21 17:04:26,023 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-21 17:04:26,023 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2022-11-21 17:04:26,024 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2022-11-21 17:04:26,024 INFO L130 BoogieDeclarations]: Found specification of procedure Wr_Indx [2022-11-21 17:04:26,024 INFO L138 BoogieDeclarations]: Found implementation of procedure Wr_Indx [2022-11-21 17:04:26,024 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-21 17:04:26,025 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-11-21 17:04:26,025 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-11-21 17:04:26,025 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-11-21 17:04:26,025 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-11-21 17:04:26,025 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-21 17:04:26,025 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-11-21 17:04:26,026 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-11-21 17:04:26,026 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2022-11-21 17:04:26,026 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2022-11-21 17:04:26,026 INFO L130 BoogieDeclarations]: Found specification of procedure WriteReg [2022-11-21 17:04:26,027 INFO L138 BoogieDeclarations]: Found implementation of procedure WriteReg [2022-11-21 17:04:26,027 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2022-11-21 17:04:26,027 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2022-11-21 17:04:26,027 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-11-21 17:04:26,027 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-11-21 17:04:26,028 INFO L130 BoogieDeclarations]: Found specification of procedure SetBaudRate [2022-11-21 17:04:26,028 INFO L138 BoogieDeclarations]: Found implementation of procedure SetBaudRate [2022-11-21 17:04:26,028 INFO L130 BoogieDeclarations]: Found specification of procedure Wr_Byte [2022-11-21 17:04:26,028 INFO L138 BoogieDeclarations]: Found implementation of procedure Wr_Byte [2022-11-21 17:04:26,028 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2022-11-21 17:04:26,029 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2022-11-21 17:04:26,029 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2022-11-21 17:04:26,029 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2022-11-21 17:04:26,029 INFO L130 BoogieDeclarations]: Found specification of procedure via_ircc_net_open [2022-11-21 17:04:26,029 INFO L138 BoogieDeclarations]: Found implementation of procedure via_ircc_net_open [2022-11-21 17:04:26,030 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-21 17:04:26,030 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-21 17:04:26,030 INFO L130 BoogieDeclarations]: Found specification of procedure ResetChip [2022-11-21 17:04:26,030 INFO L138 BoogieDeclarations]: Found implementation of procedure ResetChip [2022-11-21 17:04:26,030 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-21 17:04:26,031 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-21 17:04:26,031 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-21 17:04:26,031 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-21 17:04:26,031 INFO L130 BoogieDeclarations]: Found specification of procedure irda_device_txqueue_empty [2022-11-21 17:04:26,031 INFO L138 BoogieDeclarations]: Found implementation of procedure irda_device_txqueue_empty [2022-11-21 17:04:26,032 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-11-21 17:04:26,032 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-11-21 17:04:26,032 INFO L130 BoogieDeclarations]: Found specification of procedure pci_read_config_byte [2022-11-21 17:04:26,032 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_read_config_byte [2022-11-21 17:04:26,033 INFO L130 BoogieDeclarations]: Found specification of procedure Sdelay [2022-11-21 17:04:26,033 INFO L138 BoogieDeclarations]: Found implementation of procedure Sdelay [2022-11-21 17:04:26,033 INFO L130 BoogieDeclarations]: Found specification of procedure SetSIR [2022-11-21 17:04:26,033 INFO L138 BoogieDeclarations]: Found implementation of procedure SetSIR [2022-11-21 17:04:26,033 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2022-11-21 17:04:26,034 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2022-11-21 17:04:26,034 INFO L130 BoogieDeclarations]: Found specification of procedure SetMaxRxPacketSize [2022-11-21 17:04:26,034 INFO L138 BoogieDeclarations]: Found implementation of procedure SetMaxRxPacketSize [2022-11-21 17:04:26,034 INFO L130 BoogieDeclarations]: Found specification of procedure GetRecvByte [2022-11-21 17:04:26,034 INFO L138 BoogieDeclarations]: Found implementation of procedure GetRecvByte [2022-11-21 17:04:26,035 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2022-11-21 17:04:26,035 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2022-11-21 17:04:26,035 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-21 17:04:26,035 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-21 17:04:26,035 INFO L130 BoogieDeclarations]: Found specification of procedure hwreset [2022-11-21 17:04:26,036 INFO L138 BoogieDeclarations]: Found implementation of procedure hwreset [2022-11-21 17:04:26,036 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-21 17:04:26,036 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2022-11-21 17:04:26,036 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2022-11-21 17:04:26,036 INFO L130 BoogieDeclarations]: Found specification of procedure pci_write_config_byte [2022-11-21 17:04:26,036 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_write_config_byte [2022-11-21 17:04:26,037 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-11-21 17:04:26,037 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-11-21 17:04:26,037 INFO L130 BoogieDeclarations]: Found specification of procedure outb [2022-11-21 17:04:26,037 INFO L138 BoogieDeclarations]: Found implementation of procedure outb [2022-11-21 17:04:26,037 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-11-21 17:04:26,038 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-11-21 17:04:26,038 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq [2022-11-21 17:04:26,038 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq [2022-11-21 17:04:26,038 INFO L130 BoogieDeclarations]: Found specification of procedure via_ircc_dma_xmit [2022-11-21 17:04:26,038 INFO L138 BoogieDeclarations]: Found implementation of procedure via_ircc_dma_xmit [2022-11-21 17:04:26,039 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reserve [2022-11-21 17:04:26,039 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reserve [2022-11-21 17:04:26,039 INFO L130 BoogieDeclarations]: Found specification of procedure dma_free_attrs [2022-11-21 17:04:26,040 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_free_attrs [2022-11-21 17:04:26,040 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2022-11-21 17:04:26,040 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2022-11-21 17:04:26,040 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-11-21 17:04:26,040 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-11-21 17:04:26,041 INFO L130 BoogieDeclarations]: Found specification of procedure __release_region [2022-11-21 17:04:26,041 INFO L138 BoogieDeclarations]: Found implementation of procedure __release_region [2022-11-21 17:04:26,041 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-21 17:04:26,041 INFO L130 BoogieDeclarations]: Found specification of procedure net_ratelimit [2022-11-21 17:04:26,041 INFO L138 BoogieDeclarations]: Found implementation of procedure net_ratelimit [2022-11-21 17:04:26,042 INFO L130 BoogieDeclarations]: Found specification of procedure SetSendByte [2022-11-21 17:04:26,042 INFO L138 BoogieDeclarations]: Found implementation of procedure SetSendByte [2022-11-21 17:04:26,042 INFO L130 BoogieDeclarations]: Found specification of procedure dev_alloc_skb [2022-11-21 17:04:26,042 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_alloc_skb [2022-11-21 17:04:26,042 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-21 17:04:26,043 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-21 17:04:26,043 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_lock_of_via_ircc_cb [2022-11-21 17:04:26,043 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_lock_of_via_ircc_cb [2022-11-21 17:04:26,043 INFO L130 BoogieDeclarations]: Found specification of procedure SetSendPreambleCount [2022-11-21 17:04:26,043 INFO L138 BoogieDeclarations]: Found implementation of procedure SetSendPreambleCount [2022-11-21 17:04:26,044 INFO L130 BoogieDeclarations]: Found specification of procedure InitCard [2022-11-21 17:04:26,044 INFO L138 BoogieDeclarations]: Found implementation of procedure InitCard [2022-11-21 17:04:26,044 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-11-21 17:04:26,044 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-11-21 17:04:26,044 INFO L130 BoogieDeclarations]: Found specification of procedure SetTimer [2022-11-21 17:04:26,045 INFO L138 BoogieDeclarations]: Found implementation of procedure SetTimer [2022-11-21 17:04:26,045 INFO L130 BoogieDeclarations]: Found specification of procedure ActClk [2022-11-21 17:04:26,045 INFO L138 BoogieDeclarations]: Found implementation of procedure ActClk [2022-11-21 17:04:26,045 INFO L130 BoogieDeclarations]: Found specification of procedure request_dma [2022-11-21 17:04:26,045 INFO L138 BoogieDeclarations]: Found implementation of procedure request_dma [2022-11-21 17:04:26,045 INFO L130 BoogieDeclarations]: Found specification of procedure inb [2022-11-21 17:04:26,046 INFO L138 BoogieDeclarations]: Found implementation of procedure inb [2022-11-21 17:04:26,046 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-21 17:04:26,046 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reset_mac_header [2022-11-21 17:04:26,046 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reset_mac_header [2022-11-21 17:04:26,046 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2022-11-21 17:04:26,047 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2022-11-21 17:04:26,047 INFO L130 BoogieDeclarations]: Found specification of procedure skb_copy_to_linear_data [2022-11-21 17:04:26,047 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_copy_to_linear_data [2022-11-21 17:04:26,866 INFO L235 CfgBuilder]: Building ICFG [2022-11-21 17:04:26,874 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-21 17:04:27,253 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-21 17:04:31,845 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2022-11-21 17:04:32,566 INFO L276 CfgBuilder]: Performing block encoding [2022-11-21 17:04:32,595 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-21 17:04:32,596 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-21 17:04:32,601 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 05:04:32 BoogieIcfgContainer [2022-11-21 17:04:32,601 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-21 17:04:32,604 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-21 17:04:32,604 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-21 17:04:32,608 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-21 17:04:32,608 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 05:04:20" (1/3) ... [2022-11-21 17:04:32,610 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b65a9bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 05:04:32, skipping insertion in model container [2022-11-21 17:04:32,610 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:04:25" (2/3) ... [2022-11-21 17:04:32,611 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b65a9bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 05:04:32, skipping insertion in model container [2022-11-21 17:04:32,612 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 05:04:32" (3/3) ... [2022-11-21 17:04:32,616 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-irda-via-ircc.cil.i [2022-11-21 17:04:32,638 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-21 17:04:32,639 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2022-11-21 17:04:32,769 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-21 17:04:32,780 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@58951b31, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-21 17:04:32,780 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-11-21 17:04:32,794 INFO L276 IsEmpty]: Start isEmpty. Operand has 1897 states, 1149 states have (on average 1.2584856396866841) internal successors, (1446), 1175 states have internal predecessors, (1446), 654 states have call successors, (654), 92 states have call predecessors, (654), 91 states have return successors, (650), 638 states have call predecessors, (650), 650 states have call successors, (650) [2022-11-21 17:04:32,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2022-11-21 17:04:32,809 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 17:04:32,810 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 17:04:32,811 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-21 17:04:32,816 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:04:32,816 INFO L85 PathProgramCache]: Analyzing trace with hash 571525592, now seen corresponding path program 1 times [2022-11-21 17:04:32,826 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 17:04:32,827 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [116527175] [2022-11-21 17:04:32,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:04:32,828 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 17:04:33,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:04:33,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-21 17:04:33,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:04:33,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:04:33,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:04:33,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-21 17:04:33,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:04:33,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:04:33,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:04:33,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-21 17:04:33,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:04:33,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:04:33,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:04:33,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-11-21 17:04:33,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:04:33,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:04:33,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:04:33,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-11-21 17:04:33,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:04:33,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:04:33,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:04:33,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-11-21 17:04:33,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:04:33,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-11-21 17:04:33,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:04:33,841 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2022-11-21 17:04:33,842 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 17:04:33,843 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [116527175] [2022-11-21 17:04:33,844 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [116527175] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 17:04:33,844 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 17:04:33,844 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-21 17:04:33,846 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [624452344] [2022-11-21 17:04:33,846 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 17:04:33,851 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-21 17:04:33,856 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 17:04:33,900 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-21 17:04:33,901 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-21 17:04:33,909 INFO L87 Difference]: Start difference. First operand has 1897 states, 1149 states have (on average 1.2584856396866841) internal successors, (1446), 1175 states have internal predecessors, (1446), 654 states have call successors, (654), 92 states have call predecessors, (654), 91 states have return successors, (650), 638 states have call predecessors, (650), 650 states have call successors, (650) Second operand has 4 states, 4 states have (on average 6.75) internal successors, (27), 3 states have internal predecessors, (27), 3 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2022-11-21 17:04:36,224 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-21 17:04:46,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 17:04:46,937 INFO L93 Difference]: Finished difference Result 5611 states and 8208 transitions. [2022-11-21 17:04:46,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-21 17:04:46,943 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 3 states have internal predecessors, (27), 3 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 79 [2022-11-21 17:04:46,943 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 17:04:47,015 INFO L225 Difference]: With dead ends: 5611 [2022-11-21 17:04:47,015 INFO L226 Difference]: Without dead ends: 3720 [2022-11-21 17:04:47,041 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-21 17:04:47,048 INFO L413 NwaCegarLoop]: 1575 mSDtfsCounter, 3494 mSDsluCounter, 1729 mSDsCounter, 0 mSdLazyCounter, 4081 mSolverCounterSat, 1978 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4114 SdHoareTripleChecker+Valid, 3304 SdHoareTripleChecker+Invalid, 6059 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1978 IncrementalHoareTripleChecker+Valid, 4081 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.0s IncrementalHoareTripleChecker+Time [2022-11-21 17:04:47,050 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4114 Valid, 3304 Invalid, 6059 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1978 Valid, 4081 Invalid, 0 Unknown, 0 Unchecked, 12.0s Time] [2022-11-21 17:04:47,081 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3720 states. [2022-11-21 17:04:47,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3720 to 3688. [2022-11-21 17:04:47,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3688 states, 2238 states have (on average 1.2551385165326183) internal successors, (2809), 2288 states have internal predecessors, (2809), 1268 states have call successors, (1268), 180 states have call predecessors, (1268), 179 states have return successors, (1265), 1241 states have call predecessors, (1265), 1265 states have call successors, (1265) [2022-11-21 17:04:47,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3688 states to 3688 states and 5342 transitions. [2022-11-21 17:04:47,559 INFO L78 Accepts]: Start accepts. Automaton has 3688 states and 5342 transitions. Word has length 79 [2022-11-21 17:04:47,560 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 17:04:47,560 INFO L495 AbstractCegarLoop]: Abstraction has 3688 states and 5342 transitions. [2022-11-21 17:04:47,560 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 3 states have internal predecessors, (27), 3 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2022-11-21 17:04:47,561 INFO L276 IsEmpty]: Start isEmpty. Operand 3688 states and 5342 transitions. [2022-11-21 17:04:47,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2022-11-21 17:04:47,565 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 17:04:47,566 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 17:04:47,566 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-21 17:04:47,567 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-21 17:04:47,567 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:04:47,568 INFO L85 PathProgramCache]: Analyzing trace with hash -1748769044, now seen corresponding path program 1 times [2022-11-21 17:04:47,568 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 17:04:47,568 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1416496528] [2022-11-21 17:04:47,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:04:47,569 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 17:04:47,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:04:47,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-21 17:04:47,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:04:47,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:04:47,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:04:47,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-21 17:04:47,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:04:47,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:04:47,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:04:47,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-21 17:04:47,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:04:47,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:04:47,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:04:47,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-11-21 17:04:47,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:04:47,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:04:47,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:04:47,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-11-21 17:04:47,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:04:47,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:04:47,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:04:47,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-11-21 17:04:47,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:04:47,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-11-21 17:04:47,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:04:47,919 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2022-11-21 17:04:47,919 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 17:04:47,920 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1416496528] [2022-11-21 17:04:47,920 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1416496528] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 17:04:47,920 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 17:04:47,920 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-21 17:04:47,921 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [503829273] [2022-11-21 17:04:47,921 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 17:04:47,922 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-21 17:04:47,923 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 17:04:47,923 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-21 17:04:47,924 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-21 17:04:47,924 INFO L87 Difference]: Start difference. First operand 3688 states and 5342 transitions. Second operand has 4 states, 4 states have (on average 7.75) internal successors, (31), 3 states have internal predecessors, (31), 3 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2022-11-21 17:04:53,335 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.35s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-21 17:05:00,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 17:05:00,625 INFO L93 Difference]: Finished difference Result 10284 states and 14945 transitions. [2022-11-21 17:05:00,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-21 17:05:00,628 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 3 states have internal predecessors, (31), 3 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 83 [2022-11-21 17:05:00,629 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 17:05:00,690 INFO L225 Difference]: With dead ends: 10284 [2022-11-21 17:05:00,690 INFO L226 Difference]: Without dead ends: 6611 [2022-11-21 17:05:00,718 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-21 17:05:00,719 INFO L413 NwaCegarLoop]: 1519 mSDtfsCounter, 2990 mSDsluCounter, 1757 mSDsCounter, 0 mSdLazyCounter, 3995 mSolverCounterSat, 1772 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3534 SdHoareTripleChecker+Valid, 3276 SdHoareTripleChecker+Invalid, 5767 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1772 IncrementalHoareTripleChecker+Valid, 3995 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.9s IncrementalHoareTripleChecker+Time [2022-11-21 17:05:00,719 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3534 Valid, 3276 Invalid, 5767 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1772 Valid, 3995 Invalid, 0 Unknown, 0 Unchecked, 11.9s Time] [2022-11-21 17:05:00,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6611 states. [2022-11-21 17:05:01,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6611 to 6542. [2022-11-21 17:05:01,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6542 states, 3943 states have (on average 1.2508242454983516) internal successors, (4932), 4043 states have internal predecessors, (4932), 2267 states have call successors, (2267), 330 states have call predecessors, (2267), 329 states have return successors, (2302), 2208 states have call predecessors, (2302), 2264 states have call successors, (2302) [2022-11-21 17:05:01,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6542 states to 6542 states and 9501 transitions. [2022-11-21 17:05:01,307 INFO L78 Accepts]: Start accepts. Automaton has 6542 states and 9501 transitions. Word has length 83 [2022-11-21 17:05:01,310 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 17:05:01,310 INFO L495 AbstractCegarLoop]: Abstraction has 6542 states and 9501 transitions. [2022-11-21 17:05:01,310 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 3 states have internal predecessors, (31), 3 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2022-11-21 17:05:01,311 INFO L276 IsEmpty]: Start isEmpty. Operand 6542 states and 9501 transitions. [2022-11-21 17:05:01,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2022-11-21 17:05:01,321 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 17:05:01,321 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 17:05:01,322 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-21 17:05:01,322 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-21 17:05:01,322 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:05:01,323 INFO L85 PathProgramCache]: Analyzing trace with hash 1840935360, now seen corresponding path program 1 times [2022-11-21 17:05:01,327 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 17:05:01,327 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [122216577] [2022-11-21 17:05:01,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:05:01,327 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 17:05:01,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:05:01,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-21 17:05:01,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:05:01,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:05:01,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:05:01,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-21 17:05:01,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:05:01,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:05:01,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:05:01,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-21 17:05:01,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:05:01,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:05:01,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:05:01,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-11-21 17:05:01,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:05:01,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:05:01,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:05:01,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-11-21 17:05:01,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:05:01,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:05:01,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:05:01,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-11-21 17:05:01,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:05:01,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-11-21 17:05:01,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:05:01,689 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2022-11-21 17:05:01,690 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 17:05:01,690 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [122216577] [2022-11-21 17:05:01,690 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [122216577] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 17:05:01,690 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 17:05:01,690 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-21 17:05:01,691 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [934236195] [2022-11-21 17:05:01,691 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 17:05:01,691 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-21 17:05:01,692 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 17:05:01,692 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-21 17:05:01,692 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-21 17:05:01,693 INFO L87 Difference]: Start difference. First operand 6542 states and 9501 transitions. Second operand has 4 states, 4 states have (on average 8.75) internal successors, (35), 3 states have internal predecessors, (35), 3 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2022-11-21 17:05:10,370 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.82s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-21 17:05:14,029 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 17:05:14,030 INFO L93 Difference]: Finished difference Result 18736 states and 27276 transitions. [2022-11-21 17:05:14,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-21 17:05:14,030 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 3 states have internal predecessors, (35), 3 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 87 [2022-11-21 17:05:14,031 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 17:05:14,144 INFO L225 Difference]: With dead ends: 18736 [2022-11-21 17:05:14,144 INFO L226 Difference]: Without dead ends: 12209 [2022-11-21 17:05:14,193 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-21 17:05:14,200 INFO L413 NwaCegarLoop]: 1548 mSDtfsCounter, 3327 mSDsluCounter, 1733 mSDsCounter, 0 mSdLazyCounter, 4032 mSolverCounterSat, 1979 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3901 SdHoareTripleChecker+Valid, 3281 SdHoareTripleChecker+Invalid, 6011 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1979 IncrementalHoareTripleChecker+Valid, 4032 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.4s IncrementalHoareTripleChecker+Time [2022-11-21 17:05:14,204 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3901 Valid, 3281 Invalid, 6011 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1979 Valid, 4032 Invalid, 0 Unknown, 0 Unchecked, 11.4s Time] [2022-11-21 17:05:14,227 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12209 states. [2022-11-21 17:05:15,291 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12209 to 12104. [2022-11-21 17:05:15,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12104 states, 7283 states have (on average 1.248935878072223) internal successors, (9096), 7485 states have internal predecessors, (9096), 4205 states have call successors, (4205), 622 states have call predecessors, (4205), 613 states have return successors, (4294), 4068 states have call predecessors, (4294), 4202 states have call successors, (4294) [2022-11-21 17:05:15,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12104 states to 12104 states and 17595 transitions. [2022-11-21 17:05:15,469 INFO L78 Accepts]: Start accepts. Automaton has 12104 states and 17595 transitions. Word has length 87 [2022-11-21 17:05:15,469 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 17:05:15,470 INFO L495 AbstractCegarLoop]: Abstraction has 12104 states and 17595 transitions. [2022-11-21 17:05:15,471 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 3 states have internal predecessors, (35), 3 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2022-11-21 17:05:15,471 INFO L276 IsEmpty]: Start isEmpty. Operand 12104 states and 17595 transitions. [2022-11-21 17:05:15,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-11-21 17:05:15,485 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 17:05:15,486 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 5, 5, 5, 5, 5, 5, 4, 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] [2022-11-21 17:05:15,486 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-21 17:05:15,486 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-21 17:05:15,487 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:05:15,487 INFO L85 PathProgramCache]: Analyzing trace with hash 1402472856, now seen corresponding path program 1 times [2022-11-21 17:05:15,487 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 17:05:15,488 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1074647910] [2022-11-21 17:05:15,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:05:15,488 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 17:05:15,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:05:15,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-21 17:05:15,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:05:15,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:05:15,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:05:15,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-21 17:05:15,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:05:15,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:05:15,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:05:15,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-21 17:05:15,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:05:15,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:05:15,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:05:15,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-11-21 17:05:15,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:05:15,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:05:15,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:05:15,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-11-21 17:05:15,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:05:15,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:05:15,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:05:15,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-11-21 17:05:15,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:05:15,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-11-21 17:05:15,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:05:15,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-11-21 17:05:15,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:05:15,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-11-21 17:05:15,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:05:15,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-11-21 17:05:15,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:05:15,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:05:15,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:05:15,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-11-21 17:05:15,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:05:15,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-11-21 17:05:15,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:05:15,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-11-21 17:05:15,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:05:15,940 INFO L134 CoverageAnalysis]: Checked inductivity of 198 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 192 trivial. 0 not checked. [2022-11-21 17:05:15,940 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 17:05:15,940 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1074647910] [2022-11-21 17:05:15,940 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1074647910] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 17:05:15,941 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 17:05:15,941 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-21 17:05:15,941 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1311014560] [2022-11-21 17:05:15,941 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 17:05:15,942 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-21 17:05:15,942 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 17:05:15,942 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-21 17:05:15,943 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-21 17:05:15,943 INFO L87 Difference]: Start difference. First operand 12104 states and 17595 transitions. Second operand has 4 states, 4 states have (on average 13.25) internal successors, (53), 3 states have internal predecessors, (53), 3 states have call successors, (17), 3 states have call predecessors, (17), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2022-11-21 17:05:18,252 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-21 17:05:19,998 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.75s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-21 17:05:22,952 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-21 17:05:30,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 17:05:30,201 INFO L93 Difference]: Finished difference Result 24254 states and 35281 transitions. [2022-11-21 17:05:30,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-21 17:05:30,201 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.25) internal successors, (53), 3 states have internal predecessors, (53), 3 states have call successors, (17), 3 states have call predecessors, (17), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) Word has length 134 [2022-11-21 17:05:30,202 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 17:05:30,344 INFO L225 Difference]: With dead ends: 24254 [2022-11-21 17:05:30,344 INFO L226 Difference]: Without dead ends: 18073 [2022-11-21 17:05:30,389 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-21 17:05:30,391 INFO L413 NwaCegarLoop]: 2502 mSDtfsCounter, 2757 mSDsluCounter, 2380 mSDsCounter, 0 mSdLazyCounter, 5125 mSolverCounterSat, 1353 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3372 SdHoareTripleChecker+Valid, 4882 SdHoareTripleChecker+Invalid, 6479 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1353 IncrementalHoareTripleChecker+Valid, 5125 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.2s IncrementalHoareTripleChecker+Time [2022-11-21 17:05:30,392 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3372 Valid, 4882 Invalid, 6479 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1353 Valid, 5125 Invalid, 1 Unknown, 0 Unchecked, 13.2s Time] [2022-11-21 17:05:30,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18073 states. [2022-11-21 17:05:31,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18073 to 17941. [2022-11-21 17:05:31,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17941 states, 10805 states have (on average 1.2497917630726516) internal successors, (13504), 11103 states have internal predecessors, (13504), 6219 states have call successors, (6219), 927 states have call predecessors, (6219), 914 states have return successors, (6354), 6018 states have call predecessors, (6354), 6216 states have call successors, (6354) [2022-11-21 17:05:31,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17941 states to 17941 states and 26077 transitions. [2022-11-21 17:05:31,887 INFO L78 Accepts]: Start accepts. Automaton has 17941 states and 26077 transitions. Word has length 134 [2022-11-21 17:05:31,888 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 17:05:31,888 INFO L495 AbstractCegarLoop]: Abstraction has 17941 states and 26077 transitions. [2022-11-21 17:05:31,888 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.25) internal successors, (53), 3 states have internal predecessors, (53), 3 states have call successors, (17), 3 states have call predecessors, (17), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2022-11-21 17:05:31,888 INFO L276 IsEmpty]: Start isEmpty. Operand 17941 states and 26077 transitions. [2022-11-21 17:05:31,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-11-21 17:05:31,892 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 17:05:31,892 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 5, 5, 5, 5, 5, 5, 4, 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] [2022-11-21 17:05:31,892 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-21 17:05:31,892 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-21 17:05:31,893 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:05:31,893 INFO L85 PathProgramCache]: Analyzing trace with hash 1825174682, now seen corresponding path program 1 times [2022-11-21 17:05:31,893 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 17:05:31,893 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [55107466] [2022-11-21 17:05:31,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:05:31,894 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 17:05:31,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:05:32,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-21 17:05:32,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:05:32,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:05:32,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:05:32,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-21 17:05:32,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:05:32,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:05:32,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:05:32,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-21 17:05:32,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:05:32,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:05:32,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:05:32,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-11-21 17:05:32,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:05:32,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:05:32,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:05:32,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-11-21 17:05:32,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:05:32,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:05:32,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:05:32,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-11-21 17:05:32,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:05:32,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-11-21 17:05:32,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:05:32,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-11-21 17:05:32,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:05:32,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-11-21 17:05:32,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:05:32,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-11-21 17:05:32,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:05:32,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:05:32,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:05:32,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-11-21 17:05:32,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:05:32,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-11-21 17:05:32,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:05:32,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-11-21 17:05:32,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:05:32,756 INFO L134 CoverageAnalysis]: Checked inductivity of 198 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 198 trivial. 0 not checked. [2022-11-21 17:05:32,757 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 17:05:32,757 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [55107466] [2022-11-21 17:05:32,757 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [55107466] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 17:05:32,757 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 17:05:32,757 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-21 17:05:32,758 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1084319287] [2022-11-21 17:05:32,758 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 17:05:32,758 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-21 17:05:32,758 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 17:05:32,759 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-21 17:05:32,759 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-21 17:05:32,759 INFO L87 Difference]: Start difference. First operand 17941 states and 26077 transitions. Second operand has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (16), 4 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-11-21 17:05:41,957 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 17:05:41,957 INFO L93 Difference]: Finished difference Result 18043 states and 26273 transitions. [2022-11-21 17:05:41,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-21 17:05:41,958 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (16), 4 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 134 [2022-11-21 17:05:41,958 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 17:05:42,087 INFO L225 Difference]: With dead ends: 18043 [2022-11-21 17:05:42,088 INFO L226 Difference]: Without dead ends: 18041 [2022-11-21 17:05:42,104 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-11-21 17:05:42,105 INFO L413 NwaCegarLoop]: 1294 mSDtfsCounter, 2448 mSDsluCounter, 2792 mSDsCounter, 0 mSdLazyCounter, 5126 mSolverCounterSat, 1747 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2701 SdHoareTripleChecker+Valid, 4086 SdHoareTripleChecker+Invalid, 6873 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1747 IncrementalHoareTripleChecker+Valid, 5126 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.2s IncrementalHoareTripleChecker+Time [2022-11-21 17:05:42,105 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2701 Valid, 4086 Invalid, 6873 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1747 Valid, 5126 Invalid, 0 Unknown, 0 Unchecked, 8.2s Time] [2022-11-21 17:05:42,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18041 states. [2022-11-21 17:05:43,414 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18041 to 17945. [2022-11-21 17:05:43,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17945 states, 10808 states have (on average 1.2497224278312362) internal successors, (13507), 11106 states have internal predecessors, (13507), 6219 states have call successors, (6219), 928 states have call predecessors, (6219), 915 states have return successors, (6354), 6018 states have call predecessors, (6354), 6216 states have call successors, (6354) [2022-11-21 17:05:43,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17945 states to 17945 states and 26080 transitions. [2022-11-21 17:05:43,566 INFO L78 Accepts]: Start accepts. Automaton has 17945 states and 26080 transitions. Word has length 134 [2022-11-21 17:05:43,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 17:05:43,568 INFO L495 AbstractCegarLoop]: Abstraction has 17945 states and 26080 transitions. [2022-11-21 17:05:43,568 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (16), 4 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-11-21 17:05:43,568 INFO L276 IsEmpty]: Start isEmpty. Operand 17945 states and 26080 transitions. [2022-11-21 17:05:43,572 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2022-11-21 17:05:43,573 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 17:05:43,573 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 5, 5, 5, 5, 5, 5, 4, 4, 4, 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] [2022-11-21 17:05:43,573 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-21 17:05:43,574 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-21 17:05:43,574 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:05:43,574 INFO L85 PathProgramCache]: Analyzing trace with hash 1509236096, now seen corresponding path program 1 times [2022-11-21 17:05:43,574 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 17:05:43,574 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [921250586] [2022-11-21 17:05:43,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:05:43,575 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 17:05:43,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:05:44,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-21 17:05:44,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:05:44,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:05:44,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:05:44,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-21 17:05:44,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:05:44,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:05:44,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:05:44,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-21 17:05:44,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:05:44,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:05:44,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:05:44,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-11-21 17:05:44,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:05:44,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:05:44,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:05:44,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-11-21 17:05:44,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:05:44,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:05:44,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:05:44,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-11-21 17:05:44,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:05:44,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-11-21 17:05:44,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:05:44,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-11-21 17:05:44,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:05:44,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-11-21 17:05:44,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:05:44,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-11-21 17:05:44,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:05:44,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:05:44,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:05:44,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-11-21 17:05:44,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:05:44,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-11-21 17:05:44,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:05:44,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-11-21 17:05:44,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:05:44,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-11-21 17:05:44,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:05:44,184 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 198 trivial. 0 not checked. [2022-11-21 17:05:44,185 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 17:05:44,185 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [921250586] [2022-11-21 17:05:44,185 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [921250586] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 17:05:44,185 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 17:05:44,185 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-21 17:05:44,185 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [357008144] [2022-11-21 17:05:44,186 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 17:05:44,186 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-21 17:05:44,186 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 17:05:44,187 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-21 17:05:44,187 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-21 17:05:44,187 INFO L87 Difference]: Start difference. First operand 17945 states and 26080 transitions. Second operand has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (17), 4 states have call predecessors, (17), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-11-21 17:05:46,672 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-21 17:05:48,783 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.60s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-21 17:05:54,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 17:05:54,622 INFO L93 Difference]: Finished difference Result 18047 states and 26276 transitions. [2022-11-21 17:05:54,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-21 17:05:54,622 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (17), 4 states have call predecessors, (17), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 139 [2022-11-21 17:05:54,623 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 17:05:54,813 INFO L225 Difference]: With dead ends: 18047 [2022-11-21 17:05:54,813 INFO L226 Difference]: Without dead ends: 18045 [2022-11-21 17:05:54,823 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-11-21 17:05:54,825 INFO L413 NwaCegarLoop]: 1293 mSDtfsCounter, 2440 mSDsluCounter, 2789 mSDsCounter, 0 mSdLazyCounter, 5129 mSolverCounterSat, 1746 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2694 SdHoareTripleChecker+Valid, 4082 SdHoareTripleChecker+Invalid, 6875 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1746 IncrementalHoareTripleChecker+Valid, 5129 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.3s IncrementalHoareTripleChecker+Time [2022-11-21 17:05:54,825 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2694 Valid, 4082 Invalid, 6875 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1746 Valid, 5129 Invalid, 0 Unknown, 0 Unchecked, 9.3s Time] [2022-11-21 17:05:54,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18045 states. [2022-11-21 17:05:56,079 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18045 to 17949. [2022-11-21 17:05:56,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17949 states, 10811 states have (on average 1.2496531310702064) internal successors, (13510), 11109 states have internal predecessors, (13510), 6219 states have call successors, (6219), 929 states have call predecessors, (6219), 916 states have return successors, (6354), 6018 states have call predecessors, (6354), 6216 states have call successors, (6354) [2022-11-21 17:05:56,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17949 states to 17949 states and 26083 transitions. [2022-11-21 17:05:56,229 INFO L78 Accepts]: Start accepts. Automaton has 17949 states and 26083 transitions. Word has length 139 [2022-11-21 17:05:56,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 17:05:56,230 INFO L495 AbstractCegarLoop]: Abstraction has 17949 states and 26083 transitions. [2022-11-21 17:05:56,230 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (17), 4 states have call predecessors, (17), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-11-21 17:05:56,230 INFO L276 IsEmpty]: Start isEmpty. Operand 17949 states and 26083 transitions. [2022-11-21 17:05:56,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2022-11-21 17:05:56,235 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 17:05:56,235 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 5, 5, 5, 5, 5, 5, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 17:05:56,235 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-21 17:05:56,236 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-21 17:05:56,236 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:05:56,236 INFO L85 PathProgramCache]: Analyzing trace with hash -1172657126, now seen corresponding path program 1 times [2022-11-21 17:05:56,236 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 17:05:56,237 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1889273073] [2022-11-21 17:05:56,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:05:56,237 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 17:05:56,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:05:56,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-21 17:05:56,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:05:56,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:05:56,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:05:56,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-21 17:05:56,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:05:56,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:05:56,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:05:56,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-21 17:05:56,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:05:56,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:05:56,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:05:56,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-11-21 17:05:56,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:05:56,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:05:56,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:05:56,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-11-21 17:05:56,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:05:56,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:05:56,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:05:56,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-11-21 17:05:56,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:05:56,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-11-21 17:05:56,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:05:56,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-11-21 17:05:56,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:05:56,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-11-21 17:05:56,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:05:56,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-11-21 17:05:56,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:05:56,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:05:56,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:05:56,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-11-21 17:05:56,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:05:56,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-11-21 17:05:56,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:05:56,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-11-21 17:05:56,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:05:56,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-11-21 17:05:56,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:05:56,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-11-21 17:05:56,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:05:56,830 INFO L134 CoverageAnalysis]: Checked inductivity of 206 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 202 trivial. 0 not checked. [2022-11-21 17:05:56,830 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 17:05:56,831 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1889273073] [2022-11-21 17:05:56,831 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1889273073] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 17:05:56,831 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 17:05:56,831 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-21 17:05:56,831 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2060446708] [2022-11-21 17:05:56,832 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 17:05:56,832 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-21 17:05:56,832 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 17:05:56,833 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-21 17:05:56,833 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-21 17:05:56,833 INFO L87 Difference]: Start difference. First operand 17949 states and 26083 transitions. Second operand has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (18), 4 states have call predecessors, (18), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-11-21 17:06:06,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 17:06:06,337 INFO L93 Difference]: Finished difference Result 18051 states and 26279 transitions. [2022-11-21 17:06:06,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-21 17:06:06,338 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (18), 4 states have call predecessors, (18), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 144 [2022-11-21 17:06:06,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 17:06:06,487 INFO L225 Difference]: With dead ends: 18051 [2022-11-21 17:06:06,488 INFO L226 Difference]: Without dead ends: 18049 [2022-11-21 17:06:06,507 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-11-21 17:06:06,508 INFO L413 NwaCegarLoop]: 1294 mSDtfsCounter, 2440 mSDsluCounter, 2792 mSDsCounter, 0 mSdLazyCounter, 5129 mSolverCounterSat, 1745 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2693 SdHoareTripleChecker+Valid, 4086 SdHoareTripleChecker+Invalid, 6874 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1745 IncrementalHoareTripleChecker+Valid, 5129 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.2s IncrementalHoareTripleChecker+Time [2022-11-21 17:06:06,509 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2693 Valid, 4086 Invalid, 6874 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1745 Valid, 5129 Invalid, 0 Unknown, 0 Unchecked, 8.2s Time] [2022-11-21 17:06:06,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18049 states. [2022-11-21 17:06:07,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18049 to 17953. [2022-11-21 17:06:07,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17953 states, 10814 states have (on average 1.2495838727575366) internal successors, (13513), 11112 states have internal predecessors, (13513), 6219 states have call successors, (6219), 930 states have call predecessors, (6219), 917 states have return successors, (6354), 6018 states have call predecessors, (6354), 6216 states have call successors, (6354) [2022-11-21 17:06:07,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17953 states to 17953 states and 26086 transitions. [2022-11-21 17:06:07,924 INFO L78 Accepts]: Start accepts. Automaton has 17953 states and 26086 transitions. Word has length 144 [2022-11-21 17:06:07,924 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 17:06:07,925 INFO L495 AbstractCegarLoop]: Abstraction has 17953 states and 26086 transitions. [2022-11-21 17:06:07,925 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (18), 4 states have call predecessors, (18), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-11-21 17:06:07,925 INFO L276 IsEmpty]: Start isEmpty. Operand 17953 states and 26086 transitions. [2022-11-21 17:06:07,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2022-11-21 17:06:07,931 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 17:06:07,931 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 17:06:07,931 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-21 17:06:07,932 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-21 17:06:07,932 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:06:07,932 INFO L85 PathProgramCache]: Analyzing trace with hash 2442624, now seen corresponding path program 1 times [2022-11-21 17:06:07,932 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 17:06:07,933 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [304473915] [2022-11-21 17:06:07,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:06:07,933 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 17:06:08,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:06:08,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-21 17:06:08,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:06:08,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:06:08,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:06:08,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-21 17:06:08,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:06:08,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:06:08,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:06:08,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-21 17:06:08,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:06:08,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:06:08,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:06:08,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-11-21 17:06:08,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:06:08,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:06:08,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:06:08,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-11-21 17:06:08,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:06:08,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:06:08,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:06:08,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-11-21 17:06:08,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:06:08,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-11-21 17:06:08,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:06:08,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-11-21 17:06:08,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:06:08,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-11-21 17:06:08,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:06:08,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-11-21 17:06:08,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:06:08,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:06:08,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:06:08,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-11-21 17:06:08,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:06:08,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-11-21 17:06:08,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:06:08,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-11-21 17:06:08,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:06:08,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-11-21 17:06:08,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:06:08,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-11-21 17:06:08,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:06:08,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-11-21 17:06:08,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:06:08,730 INFO L134 CoverageAnalysis]: Checked inductivity of 216 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 210 trivial. 0 not checked. [2022-11-21 17:06:08,730 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 17:06:08,730 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [304473915] [2022-11-21 17:06:08,731 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [304473915] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 17:06:08,731 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 17:06:08,731 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-21 17:06:08,731 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1216133235] [2022-11-21 17:06:08,731 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 17:06:08,732 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-21 17:06:08,732 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 17:06:08,733 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-21 17:06:08,733 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-21 17:06:08,733 INFO L87 Difference]: Start difference. First operand 17953 states and 26086 transitions. Second operand has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (19), 4 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-11-21 17:06:12,887 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.31s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-21 17:06:18,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 17:06:18,772 INFO L93 Difference]: Finished difference Result 18055 states and 26282 transitions. [2022-11-21 17:06:18,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-21 17:06:18,773 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (19), 4 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 149 [2022-11-21 17:06:18,774 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 17:06:18,887 INFO L225 Difference]: With dead ends: 18055 [2022-11-21 17:06:18,888 INFO L226 Difference]: Without dead ends: 18053 [2022-11-21 17:06:18,908 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-11-21 17:06:18,909 INFO L413 NwaCegarLoop]: 1294 mSDtfsCounter, 2440 mSDsluCounter, 2792 mSDsCounter, 0 mSdLazyCounter, 5129 mSolverCounterSat, 1744 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2693 SdHoareTripleChecker+Valid, 4086 SdHoareTripleChecker+Invalid, 6873 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1744 IncrementalHoareTripleChecker+Valid, 5129 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.7s IncrementalHoareTripleChecker+Time [2022-11-21 17:06:18,909 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2693 Valid, 4086 Invalid, 6873 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1744 Valid, 5129 Invalid, 0 Unknown, 0 Unchecked, 8.7s Time] [2022-11-21 17:06:18,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18053 states. [2022-11-21 17:06:20,511 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18053 to 17957. [2022-11-21 17:06:20,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17957 states, 10817 states have (on average 1.2495146528612369) internal successors, (13516), 11115 states have internal predecessors, (13516), 6219 states have call successors, (6219), 931 states have call predecessors, (6219), 918 states have return successors, (6354), 6018 states have call predecessors, (6354), 6216 states have call successors, (6354) [2022-11-21 17:06:20,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17957 states to 17957 states and 26089 transitions. [2022-11-21 17:06:20,649 INFO L78 Accepts]: Start accepts. Automaton has 17957 states and 26089 transitions. Word has length 149 [2022-11-21 17:06:20,649 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 17:06:20,649 INFO L495 AbstractCegarLoop]: Abstraction has 17957 states and 26089 transitions. [2022-11-21 17:06:20,650 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (19), 4 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-11-21 17:06:20,650 INFO L276 IsEmpty]: Start isEmpty. Operand 17957 states and 26089 transitions. [2022-11-21 17:06:20,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2022-11-21 17:06:20,655 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 17:06:20,655 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 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] [2022-11-21 17:06:20,656 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-21 17:06:20,656 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-21 17:06:20,656 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:06:20,657 INFO L85 PathProgramCache]: Analyzing trace with hash -1275219046, now seen corresponding path program 1 times [2022-11-21 17:06:20,657 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 17:06:20,657 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1034173681] [2022-11-21 17:06:20,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:06:20,657 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 17:06:20,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:06:21,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-21 17:06:21,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:06:21,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:06:21,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:06:21,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-21 17:06:21,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:06:21,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:06:21,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:06:21,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-21 17:06:21,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:06:21,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:06:21,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:06:21,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-11-21 17:06:21,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:06:21,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:06:21,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:06:21,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-11-21 17:06:21,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:06:21,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:06:21,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:06:21,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-11-21 17:06:21,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:06:21,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-11-21 17:06:21,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:06:21,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-11-21 17:06:21,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:06:21,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-11-21 17:06:21,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:06:21,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-11-21 17:06:21,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:06:21,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:06:21,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:06:21,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-11-21 17:06:21,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:06:21,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-11-21 17:06:21,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:06:21,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-11-21 17:06:21,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:06:21,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-11-21 17:06:21,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:06:21,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-11-21 17:06:21,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:06:21,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-11-21 17:06:21,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:06:21,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2022-11-21 17:06:21,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:06:21,318 INFO L134 CoverageAnalysis]: Checked inductivity of 230 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 222 trivial. 0 not checked. [2022-11-21 17:06:21,318 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 17:06:21,318 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1034173681] [2022-11-21 17:06:21,319 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1034173681] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 17:06:21,319 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 17:06:21,319 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-21 17:06:21,319 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [803162490] [2022-11-21 17:06:21,319 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 17:06:21,320 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-21 17:06:21,321 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 17:06:21,321 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-21 17:06:21,321 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-21 17:06:21,322 INFO L87 Difference]: Start difference. First operand 17957 states and 26089 transitions. Second operand has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (20), 4 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-11-21 17:06:23,971 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-21 17:06:26,309 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.39s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-21 17:06:32,026 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 17:06:32,027 INFO L93 Difference]: Finished difference Result 18059 states and 26285 transitions. [2022-11-21 17:06:32,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-21 17:06:32,029 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (20), 4 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 154 [2022-11-21 17:06:32,030 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 17:06:32,127 INFO L225 Difference]: With dead ends: 18059 [2022-11-21 17:06:32,127 INFO L226 Difference]: Without dead ends: 18057 [2022-11-21 17:06:32,142 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-11-21 17:06:32,143 INFO L413 NwaCegarLoop]: 1293 mSDtfsCounter, 2440 mSDsluCounter, 2789 mSDsCounter, 0 mSdLazyCounter, 5129 mSolverCounterSat, 1743 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2694 SdHoareTripleChecker+Valid, 4082 SdHoareTripleChecker+Invalid, 6872 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1743 IncrementalHoareTripleChecker+Valid, 5129 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.4s IncrementalHoareTripleChecker+Time [2022-11-21 17:06:32,143 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2694 Valid, 4082 Invalid, 6872 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1743 Valid, 5129 Invalid, 0 Unknown, 0 Unchecked, 9.4s Time] [2022-11-21 17:06:32,164 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18057 states. [2022-11-21 17:06:33,760 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18057 to 17961. [2022-11-21 17:06:33,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17961 states, 10820 states have (on average 1.249445471349353) internal successors, (13519), 11118 states have internal predecessors, (13519), 6219 states have call successors, (6219), 932 states have call predecessors, (6219), 919 states have return successors, (6354), 6018 states have call predecessors, (6354), 6216 states have call successors, (6354) [2022-11-21 17:06:33,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17961 states to 17961 states and 26092 transitions. [2022-11-21 17:06:33,950 INFO L78 Accepts]: Start accepts. Automaton has 17961 states and 26092 transitions. Word has length 154 [2022-11-21 17:06:33,950 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 17:06:33,951 INFO L495 AbstractCegarLoop]: Abstraction has 17961 states and 26092 transitions. [2022-11-21 17:06:33,951 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (20), 4 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-11-21 17:06:33,951 INFO L276 IsEmpty]: Start isEmpty. Operand 17961 states and 26092 transitions. [2022-11-21 17:06:33,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2022-11-21 17:06:33,958 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 17:06:33,958 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 6, 5, 5, 5, 5, 5, 5, 5, 5, 4, 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] [2022-11-21 17:06:33,958 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-21 17:06:33,959 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-21 17:06:33,959 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:06:33,959 INFO L85 PathProgramCache]: Analyzing trace with hash -2001396352, now seen corresponding path program 1 times [2022-11-21 17:06:33,960 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 17:06:33,960 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1799944615] [2022-11-21 17:06:33,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:06:33,960 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 17:06:34,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:06:34,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-21 17:06:34,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:06:34,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:06:34,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:06:34,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-21 17:06:34,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:06:34,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:06:34,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:06:34,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-21 17:06:34,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:06:34,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:06:34,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:06:34,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-11-21 17:06:34,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:06:34,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:06:34,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:06:34,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-11-21 17:06:34,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:06:34,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:06:34,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:06:34,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-11-21 17:06:34,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:06:34,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-11-21 17:06:34,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:06:34,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-11-21 17:06:34,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:06:34,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-11-21 17:06:34,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:06:34,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-11-21 17:06:34,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:06:34,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:06:34,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:06:34,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-11-21 17:06:34,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:06:34,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-11-21 17:06:34,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:06:34,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-11-21 17:06:34,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:06:34,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-11-21 17:06:34,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:06:34,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-11-21 17:06:34,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:06:34,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-11-21 17:06:34,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:06:34,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2022-11-21 17:06:34,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:06:34,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2022-11-21 17:06:34,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:06:34,658 INFO L134 CoverageAnalysis]: Checked inductivity of 248 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 238 trivial. 0 not checked. [2022-11-21 17:06:34,659 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 17:06:34,659 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1799944615] [2022-11-21 17:06:34,659 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1799944615] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 17:06:34,659 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 17:06:34,659 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-21 17:06:34,660 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [304955758] [2022-11-21 17:06:34,660 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 17:06:34,660 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-21 17:06:34,660 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 17:06:34,661 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-21 17:06:34,661 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-21 17:06:34,661 INFO L87 Difference]: Start difference. First operand 17961 states and 26092 transitions. Second operand has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (21), 4 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-11-21 17:06:44,517 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 17:06:44,517 INFO L93 Difference]: Finished difference Result 18063 states and 26288 transitions. [2022-11-21 17:06:44,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-21 17:06:44,518 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (21), 4 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 159 [2022-11-21 17:06:44,518 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 17:06:44,587 INFO L225 Difference]: With dead ends: 18063 [2022-11-21 17:06:44,588 INFO L226 Difference]: Without dead ends: 18061 [2022-11-21 17:06:44,596 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-11-21 17:06:44,597 INFO L413 NwaCegarLoop]: 1294 mSDtfsCounter, 2440 mSDsluCounter, 2792 mSDsCounter, 0 mSdLazyCounter, 5129 mSolverCounterSat, 1742 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2693 SdHoareTripleChecker+Valid, 4086 SdHoareTripleChecker+Invalid, 6871 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1742 IncrementalHoareTripleChecker+Valid, 5129 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.2s IncrementalHoareTripleChecker+Time [2022-11-21 17:06:44,597 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2693 Valid, 4086 Invalid, 6871 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1742 Valid, 5129 Invalid, 0 Unknown, 0 Unchecked, 8.2s Time] [2022-11-21 17:06:44,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18061 states. [2022-11-21 17:06:45,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18061 to 17965. [2022-11-21 17:06:45,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17965 states, 10823 states have (on average 1.249376328189966) internal successors, (13522), 11121 states have internal predecessors, (13522), 6219 states have call successors, (6219), 933 states have call predecessors, (6219), 920 states have return successors, (6354), 6018 states have call predecessors, (6354), 6216 states have call successors, (6354) [2022-11-21 17:06:45,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17965 states to 17965 states and 26095 transitions. [2022-11-21 17:06:45,809 INFO L78 Accepts]: Start accepts. Automaton has 17965 states and 26095 transitions. Word has length 159 [2022-11-21 17:06:45,810 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 17:06:45,810 INFO L495 AbstractCegarLoop]: Abstraction has 17965 states and 26095 transitions. [2022-11-21 17:06:45,810 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (21), 4 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-11-21 17:06:45,811 INFO L276 IsEmpty]: Start isEmpty. Operand 17965 states and 26095 transitions. [2022-11-21 17:06:45,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2022-11-21 17:06:45,817 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 17:06:45,818 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 5, 5, 5, 5, 5, 5, 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] [2022-11-21 17:06:45,818 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-21 17:06:45,818 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-21 17:06:45,818 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:06:45,819 INFO L85 PathProgramCache]: Analyzing trace with hash -1401614650, now seen corresponding path program 1 times [2022-11-21 17:06:45,819 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 17:06:45,819 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [25551592] [2022-11-21 17:06:45,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:06:45,819 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 17:06:45,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:06:46,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-21 17:06:46,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:06:46,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:06:46,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:06:46,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-21 17:06:46,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:06:46,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:06:46,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:06:46,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-21 17:06:46,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:06:46,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:06:46,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:06:46,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-11-21 17:06:46,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:06:46,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:06:46,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:06:46,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-11-21 17:06:46,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:06:46,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:06:46,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:06:46,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-11-21 17:06:46,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:06:46,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-11-21 17:06:46,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:06:46,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-21 17:06:46,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:06:46,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-21 17:06:46,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:06:46,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-21 17:06:46,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:06:46,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-11-21 17:06:46,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:06:46,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-11-21 17:06:46,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:06:46,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-21 17:06:46,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:06:46,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-11-21 17:06:46,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:06:46,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2022-11-21 17:06:46,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:06:46,241 INFO L134 CoverageAnalysis]: Checked inductivity of 155 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 151 trivial. 0 not checked. [2022-11-21 17:06:46,241 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 17:06:46,242 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [25551592] [2022-11-21 17:06:46,242 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [25551592] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 17:06:46,242 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 17:06:46,242 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-21 17:06:46,242 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [98879174] [2022-11-21 17:06:46,242 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 17:06:46,243 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-21 17:06:46,243 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 17:06:46,243 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-21 17:06:46,244 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-21 17:06:46,244 INFO L87 Difference]: Start difference. First operand 17965 states and 26095 transitions. Second operand has 5 states, 5 states have (on average 15.6) internal successors, (78), 3 states have internal predecessors, (78), 3 states have call successors, (18), 4 states have call predecessors, (18), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2022-11-21 17:06:50,303 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.30s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-21 17:06:51,857 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.55s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-21 17:06:53,357 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.24s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-21 17:07:06,039 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 17:07:06,039 INFO L93 Difference]: Finished difference Result 36836 states and 53612 transitions. [2022-11-21 17:07:06,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-21 17:07:06,040 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 3 states have internal predecessors, (78), 3 states have call successors, (18), 4 states have call predecessors, (18), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) Word has length 155 [2022-11-21 17:07:06,040 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 17:07:06,107 INFO L225 Difference]: With dead ends: 36836 [2022-11-21 17:07:06,108 INFO L226 Difference]: Without dead ends: 18886 [2022-11-21 17:07:06,191 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-11-21 17:07:06,192 INFO L413 NwaCegarLoop]: 1527 mSDtfsCounter, 3406 mSDsluCounter, 1744 mSDsCounter, 0 mSdLazyCounter, 4707 mSolverCounterSat, 3156 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3907 SdHoareTripleChecker+Valid, 3271 SdHoareTripleChecker+Invalid, 7863 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3156 IncrementalHoareTripleChecker+Valid, 4707 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.0s IncrementalHoareTripleChecker+Time [2022-11-21 17:07:06,192 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3907 Valid, 3271 Invalid, 7863 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3156 Valid, 4707 Invalid, 0 Unknown, 0 Unchecked, 17.0s Time] [2022-11-21 17:07:06,208 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18886 states. [2022-11-21 17:07:07,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18886 to 18578. [2022-11-21 17:07:07,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18578 states, 11150 states have (on average 1.2479820627802691) internal successors, (13915), 11430 states have internal predecessors, (13915), 6446 states have call successors, (6446), 980 states have call predecessors, (6446), 979 states have return successors, (6551), 6275 states have call predecessors, (6551), 6443 states have call successors, (6551) [2022-11-21 17:07:07,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18578 states to 18578 states and 26912 transitions. [2022-11-21 17:07:07,836 INFO L78 Accepts]: Start accepts. Automaton has 18578 states and 26912 transitions. Word has length 155 [2022-11-21 17:07:07,837 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 17:07:07,837 INFO L495 AbstractCegarLoop]: Abstraction has 18578 states and 26912 transitions. [2022-11-21 17:07:07,837 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 3 states have internal predecessors, (78), 3 states have call successors, (18), 4 states have call predecessors, (18), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2022-11-21 17:07:07,838 INFO L276 IsEmpty]: Start isEmpty. Operand 18578 states and 26912 transitions. [2022-11-21 17:07:07,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2022-11-21 17:07:07,843 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 17:07:07,843 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 7, 6, 6, 5, 5, 5, 5, 5, 5, 4, 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] [2022-11-21 17:07:07,843 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-21 17:07:07,844 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-21 17:07:07,844 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:07:07,844 INFO L85 PathProgramCache]: Analyzing trace with hash -1009841382, now seen corresponding path program 1 times [2022-11-21 17:07:07,844 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 17:07:07,845 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [495253304] [2022-11-21 17:07:07,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:07:07,845 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 17:07:07,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:07:08,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-21 17:07:08,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:07:08,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:07:08,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:07:08,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-21 17:07:08,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:07:08,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:07:08,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:07:08,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-21 17:07:08,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:07:08,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:07:08,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:07:08,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-11-21 17:07:08,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:07:08,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:07:08,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:07:08,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-11-21 17:07:08,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:07:08,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:07:08,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:07:08,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-11-21 17:07:08,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:07:08,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-11-21 17:07:08,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:07:08,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-11-21 17:07:08,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:07:08,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-11-21 17:07:08,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:07:08,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-11-21 17:07:08,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:07:08,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:07:08,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:07:08,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-11-21 17:07:08,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:07:08,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-11-21 17:07:08,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:07:08,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-11-21 17:07:08,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:07:08,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-11-21 17:07:08,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:07:08,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-11-21 17:07:08,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:07:08,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-11-21 17:07:08,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:07:08,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2022-11-21 17:07:08,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:07:08,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2022-11-21 17:07:08,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:07:08,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2022-11-21 17:07:08,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:07:08,586 INFO L134 CoverageAnalysis]: Checked inductivity of 270 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 258 trivial. 0 not checked. [2022-11-21 17:07:08,586 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 17:07:08,586 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [495253304] [2022-11-21 17:07:08,587 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [495253304] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 17:07:08,587 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 17:07:08,587 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-21 17:07:08,587 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [806530612] [2022-11-21 17:07:08,587 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 17:07:08,588 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-21 17:07:08,588 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 17:07:08,588 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-21 17:07:08,589 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-21 17:07:08,589 INFO L87 Difference]: Start difference. First operand 18578 states and 26912 transitions. Second operand has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 4 states have internal predecessors, (52), 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) [2022-11-21 17:07:11,492 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.43s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-21 17:07:13,561 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-21 17:07:19,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 17:07:19,909 INFO L93 Difference]: Finished difference Result 18692 states and 27118 transitions. [2022-11-21 17:07:19,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-21 17:07:19,909 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 4 states have internal predecessors, (52), 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 164 [2022-11-21 17:07:19,910 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 17:07:19,985 INFO L225 Difference]: With dead ends: 18692 [2022-11-21 17:07:19,985 INFO L226 Difference]: Without dead ends: 18690 [2022-11-21 17:07:19,997 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-11-21 17:07:19,998 INFO L413 NwaCegarLoop]: 1294 mSDtfsCounter, 2440 mSDsluCounter, 2792 mSDsCounter, 0 mSdLazyCounter, 5129 mSolverCounterSat, 1741 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2693 SdHoareTripleChecker+Valid, 4086 SdHoareTripleChecker+Invalid, 6870 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1741 IncrementalHoareTripleChecker+Valid, 5129 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.1s IncrementalHoareTripleChecker+Time [2022-11-21 17:07:19,998 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2693 Valid, 4086 Invalid, 6870 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1741 Valid, 5129 Invalid, 0 Unknown, 0 Unchecked, 9.1s Time] [2022-11-21 17:07:20,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18690 states. [2022-11-21 17:07:21,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18690 to 18582. [2022-11-21 17:07:21,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18582 states, 11153 states have (on average 1.2479153590962073) internal successors, (13918), 11433 states have internal predecessors, (13918), 6446 states have call successors, (6446), 981 states have call predecessors, (6446), 980 states have return successors, (6551), 6275 states have call predecessors, (6551), 6443 states have call successors, (6551) [2022-11-21 17:07:21,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18582 states to 18582 states and 26915 transitions. [2022-11-21 17:07:21,773 INFO L78 Accepts]: Start accepts. Automaton has 18582 states and 26915 transitions. Word has length 164 [2022-11-21 17:07:21,774 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 17:07:21,774 INFO L495 AbstractCegarLoop]: Abstraction has 18582 states and 26915 transitions. [2022-11-21 17:07:21,774 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 4 states have internal predecessors, (52), 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) [2022-11-21 17:07:21,774 INFO L276 IsEmpty]: Start isEmpty. Operand 18582 states and 26915 transitions. [2022-11-21 17:07:21,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2022-11-21 17:07:21,779 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 17:07:21,779 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 8, 7, 7, 5, 5, 5, 5, 5, 5, 4, 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] [2022-11-21 17:07:21,779 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-21 17:07:21,779 INFO L420 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)] === [2022-11-21 17:07:21,780 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:07:21,780 INFO L85 PathProgramCache]: Analyzing trace with hash 63481216, now seen corresponding path program 1 times [2022-11-21 17:07:21,780 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 17:07:21,780 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [514242860] [2022-11-21 17:07:21,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:07:21,781 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 17:07:21,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:07:22,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-21 17:07:22,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:07:22,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:07:22,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:07:22,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-21 17:07:22,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:07:22,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:07:22,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:07:22,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-21 17:07:22,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:07:22,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:07:22,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:07:22,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-11-21 17:07:22,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:07:22,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:07:22,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:07:22,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-11-21 17:07:22,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:07:22,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:07:22,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:07:22,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-11-21 17:07:22,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:07:22,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-11-21 17:07:22,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:07:22,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-11-21 17:07:22,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:07:22,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-11-21 17:07:22,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:07:22,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-11-21 17:07:22,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:07:22,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:07:22,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:07:22,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-11-21 17:07:22,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:07:22,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-11-21 17:07:22,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:07:22,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-11-21 17:07:22,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:07:22,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-11-21 17:07:22,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:07:22,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-11-21 17:07:22,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:07:22,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-11-21 17:07:22,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:07:22,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2022-11-21 17:07:22,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:07:22,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2022-11-21 17:07:22,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:07:22,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2022-11-21 17:07:22,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:07:22,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2022-11-21 17:07:22,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:07:22,307 INFO L134 CoverageAnalysis]: Checked inductivity of 296 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 282 trivial. 0 not checked. [2022-11-21 17:07:22,307 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 17:07:22,307 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [514242860] [2022-11-21 17:07:22,307 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [514242860] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 17:07:22,307 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 17:07:22,308 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-21 17:07:22,308 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1553390931] [2022-11-21 17:07:22,308 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 17:07:22,308 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-21 17:07:22,308 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 17:07:22,309 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-21 17:07:22,309 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-21 17:07:22,310 INFO L87 Difference]: Start difference. First operand 18582 states and 26915 transitions. Second operand has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 4 states have internal predecessors, (52), 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) [2022-11-21 17:07:25,009 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-21 17:07:26,071 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-21 17:07:33,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 17:07:33,329 INFO L93 Difference]: Finished difference Result 18696 states and 27121 transitions. [2022-11-21 17:07:33,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-21 17:07:33,330 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 4 states have internal predecessors, (52), 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 169 [2022-11-21 17:07:33,330 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 17:07:33,436 INFO L225 Difference]: With dead ends: 18696 [2022-11-21 17:07:33,436 INFO L226 Difference]: Without dead ends: 18694 [2022-11-21 17:07:33,451 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-11-21 17:07:33,452 INFO L413 NwaCegarLoop]: 1293 mSDtfsCounter, 2440 mSDsluCounter, 2789 mSDsCounter, 0 mSdLazyCounter, 5129 mSolverCounterSat, 1740 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2694 SdHoareTripleChecker+Valid, 4082 SdHoareTripleChecker+Invalid, 6869 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1740 IncrementalHoareTripleChecker+Valid, 5129 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.5s IncrementalHoareTripleChecker+Time [2022-11-21 17:07:33,453 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2694 Valid, 4082 Invalid, 6869 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1740 Valid, 5129 Invalid, 0 Unknown, 0 Unchecked, 8.5s Time] [2022-11-21 17:07:33,472 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18694 states. [2022-11-21 17:07:35,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18694 to 18586. [2022-11-21 17:07:35,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18586 states, 11156 states have (on average 1.2478486912871998) internal successors, (13921), 11436 states have internal predecessors, (13921), 6446 states have call successors, (6446), 982 states have call predecessors, (6446), 981 states have return successors, (6551), 6275 states have call predecessors, (6551), 6443 states have call successors, (6551) [2022-11-21 17:07:35,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18586 states to 18586 states and 26918 transitions. [2022-11-21 17:07:35,350 INFO L78 Accepts]: Start accepts. Automaton has 18586 states and 26918 transitions. Word has length 169 [2022-11-21 17:07:35,350 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 17:07:35,351 INFO L495 AbstractCegarLoop]: Abstraction has 18586 states and 26918 transitions. [2022-11-21 17:07:35,351 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 4 states have internal predecessors, (52), 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) [2022-11-21 17:07:35,351 INFO L276 IsEmpty]: Start isEmpty. Operand 18586 states and 26918 transitions. [2022-11-21 17:07:35,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2022-11-21 17:07:35,356 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 17:07:35,356 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 8, 8, 6, 6, 6, 5, 5, 5, 5, 5, 5, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 17:07:35,356 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-21 17:07:35,357 INFO L420 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)] === [2022-11-21 17:07:35,357 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:07:35,357 INFO L85 PathProgramCache]: Analyzing trace with hash -340969591, now seen corresponding path program 1 times [2022-11-21 17:07:35,357 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 17:07:35,358 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1628628442] [2022-11-21 17:07:35,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:07:35,358 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 17:07:35,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:07:35,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-21 17:07:35,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:07:35,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:07:35,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:07:35,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-21 17:07:35,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:07:35,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:07:35,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:07:35,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-21 17:07:35,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:07:35,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:07:35,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:07:36,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-11-21 17:07:36,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:07:36,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:07:36,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:07:36,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-11-21 17:07:36,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:07:36,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:07:36,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:07:36,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-11-21 17:07:36,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:07:36,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-11-21 17:07:36,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:07:36,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-11-21 17:07:36,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:07:36,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-11-21 17:07:36,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:07:36,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-11-21 17:07:36,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:07:36,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:07:36,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:07:36,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-11-21 17:07:36,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:07:36,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-11-21 17:07:36,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:07:36,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2022-11-21 17:07:36,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:07:36,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-11-21 17:07:36,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:07:36,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2022-11-21 17:07:36,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:07:36,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2022-11-21 17:07:36,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:07:36,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2022-11-21 17:07:36,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:07:36,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2022-11-21 17:07:36,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:07:36,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2022-11-21 17:07:36,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:07:36,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2022-11-21 17:07:36,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:07:36,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-11-21 17:07:36,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:07:36,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2022-11-21 17:07:36,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:07:36,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2022-11-21 17:07:36,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:07:36,162 INFO L134 CoverageAnalysis]: Checked inductivity of 361 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 345 trivial. 0 not checked. [2022-11-21 17:07:36,162 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 17:07:36,162 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1628628442] [2022-11-21 17:07:36,162 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1628628442] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 17:07:36,162 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 17:07:36,163 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-21 17:07:36,163 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [156932515] [2022-11-21 17:07:36,163 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 17:07:36,164 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-21 17:07:36,164 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 17:07:36,165 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-21 17:07:36,165 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-21 17:07:36,165 INFO L87 Difference]: Start difference. First operand 18586 states and 26918 transitions. Second operand has 6 states, 6 states have (on average 10.5) internal successors, (63), 4 states have internal predecessors, (63), 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) [2022-11-21 17:07:51,358 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 17:07:51,359 INFO L93 Difference]: Finished difference Result 24147 states and 35214 transitions. [2022-11-21 17:07:51,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-21 17:07:51,359 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.5) internal successors, (63), 4 states have internal predecessors, (63), 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 194 [2022-11-21 17:07:51,360 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 17:07:51,478 INFO L225 Difference]: With dead ends: 24147 [2022-11-21 17:07:51,478 INFO L226 Difference]: Without dead ends: 24145 [2022-11-21 17:07:51,492 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-11-21 17:07:51,493 INFO L413 NwaCegarLoop]: 1296 mSDtfsCounter, 2326 mSDsluCounter, 3164 mSDsCounter, 0 mSdLazyCounter, 8798 mSolverCounterSat, 1301 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2789 SdHoareTripleChecker+Valid, 4460 SdHoareTripleChecker+Invalid, 10099 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1301 IncrementalHoareTripleChecker+Valid, 8798 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.0s IncrementalHoareTripleChecker+Time [2022-11-21 17:07:51,494 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2789 Valid, 4460 Invalid, 10099 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1301 Valid, 8798 Invalid, 0 Unknown, 0 Unchecked, 12.0s Time] [2022-11-21 17:07:51,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24145 states. [2022-11-21 17:07:53,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24145 to 24029. [2022-11-21 17:07:53,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24029 states, 14014 states have (on average 1.2457542457542456) internal successors, (17458), 14348 states have internal predecessors, (17458), 8722 states have call successors, (8722), 1291 states have call predecessors, (8722), 1290 states have return successors, (8827), 8521 states have call predecessors, (8827), 8719 states have call successors, (8827) [2022-11-21 17:07:53,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24029 states to 24029 states and 35007 transitions. [2022-11-21 17:07:53,961 INFO L78 Accepts]: Start accepts. Automaton has 24029 states and 35007 transitions. Word has length 194 [2022-11-21 17:07:53,962 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 17:07:53,962 INFO L495 AbstractCegarLoop]: Abstraction has 24029 states and 35007 transitions. [2022-11-21 17:07:53,963 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.5) internal successors, (63), 4 states have internal predecessors, (63), 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) [2022-11-21 17:07:53,963 INFO L276 IsEmpty]: Start isEmpty. Operand 24029 states and 35007 transitions. [2022-11-21 17:07:53,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2022-11-21 17:07:53,969 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 17:07:53,969 INFO L195 NwaCegarLoop]: trace histogram [10, 9, 9, 9, 9, 6, 6, 6, 5, 5, 5, 5, 5, 5, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 17:07:53,969 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-21 17:07:53,970 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-21 17:07:53,970 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:07:53,970 INFO L85 PathProgramCache]: Analyzing trace with hash -376826383, now seen corresponding path program 1 times [2022-11-21 17:07:53,971 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 17:07:53,971 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [847929503] [2022-11-21 17:07:53,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:07:53,971 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 17:07:54,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:07:54,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-21 17:07:54,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:07:54,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:07:54,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:07:54,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-21 17:07:54,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:07:54,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:07:54,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:07:54,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-21 17:07:54,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:07:54,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:07:54,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:07:54,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-11-21 17:07:54,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:07:54,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:07:54,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:07:54,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-11-21 17:07:54,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:07:54,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:07:54,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:07:54,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-11-21 17:07:54,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:07:54,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-11-21 17:07:54,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:07:54,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-11-21 17:07:54,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:07:54,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-11-21 17:07:54,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:07:54,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-11-21 17:07:54,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:07:54,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:07:54,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:07:54,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-11-21 17:07:54,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:07:54,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-11-21 17:07:54,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:07:54,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2022-11-21 17:07:54,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:07:54,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-11-21 17:07:54,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:07:54,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2022-11-21 17:07:54,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:07:54,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2022-11-21 17:07:54,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:07:54,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2022-11-21 17:07:54,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:07:54,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2022-11-21 17:07:54,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:07:54,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2022-11-21 17:07:54,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:07:54,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2022-11-21 17:07:54,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:07:54,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-11-21 17:07:54,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:07:54,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2022-11-21 17:07:54,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:07:54,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2022-11-21 17:07:54,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:07:54,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2022-11-21 17:07:54,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:07:54,590 INFO L134 CoverageAnalysis]: Checked inductivity of 395 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 377 trivial. 0 not checked. [2022-11-21 17:07:54,590 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 17:07:54,591 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [847929503] [2022-11-21 17:07:54,591 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [847929503] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 17:07:54,591 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 17:07:54,591 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-21 17:07:54,591 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [158059490] [2022-11-21 17:07:54,591 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 17:07:54,593 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-21 17:07:54,593 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 17:07:54,594 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-21 17:07:54,594 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-21 17:07:54,594 INFO L87 Difference]: Start difference. First operand 24029 states and 35007 transitions. Second operand has 6 states, 6 states have (on average 10.5) internal successors, (63), 4 states have internal predecessors, (63), 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) [2022-11-21 17:07:58,859 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-21 17:08:06,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 17:08:06,999 INFO L93 Difference]: Finished difference Result 24151 states and 35217 transitions. [2022-11-21 17:08:06,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-21 17:08:06,999 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.5) internal successors, (63), 4 states have internal predecessors, (63), 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 199 [2022-11-21 17:08:07,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 17:08:07,082 INFO L225 Difference]: With dead ends: 24151 [2022-11-21 17:08:07,082 INFO L226 Difference]: Without dead ends: 24149 [2022-11-21 17:08:07,092 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-11-21 17:08:07,093 INFO L413 NwaCegarLoop]: 1294 mSDtfsCounter, 2429 mSDsluCounter, 2792 mSDsCounter, 0 mSdLazyCounter, 5128 mSolverCounterSat, 1738 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2680 SdHoareTripleChecker+Valid, 4086 SdHoareTripleChecker+Invalid, 6867 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1738 IncrementalHoareTripleChecker+Valid, 5128 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.3s IncrementalHoareTripleChecker+Time [2022-11-21 17:08:07,093 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2680 Valid, 4086 Invalid, 6867 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1738 Valid, 5128 Invalid, 1 Unknown, 0 Unchecked, 9.3s Time] [2022-11-21 17:08:07,112 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24149 states. [2022-11-21 17:08:09,760 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24149 to 24033. [2022-11-21 17:08:09,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24033 states, 14017 states have (on average 1.2457016479988585) internal successors, (17461), 14351 states have internal predecessors, (17461), 8722 states have call successors, (8722), 1292 states have call predecessors, (8722), 1291 states have return successors, (8827), 8521 states have call predecessors, (8827), 8719 states have call successors, (8827) [2022-11-21 17:08:09,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24033 states to 24033 states and 35010 transitions. [2022-11-21 17:08:09,896 INFO L78 Accepts]: Start accepts. Automaton has 24033 states and 35010 transitions. Word has length 199 [2022-11-21 17:08:09,897 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 17:08:09,897 INFO L495 AbstractCegarLoop]: Abstraction has 24033 states and 35010 transitions. [2022-11-21 17:08:09,898 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.5) internal successors, (63), 4 states have internal predecessors, (63), 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) [2022-11-21 17:08:09,898 INFO L276 IsEmpty]: Start isEmpty. Operand 24033 states and 35010 transitions. [2022-11-21 17:08:09,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2022-11-21 17:08:09,903 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 17:08:09,903 INFO L195 NwaCegarLoop]: trace histogram [11, 10, 10, 9, 9, 6, 6, 6, 5, 5, 5, 5, 5, 5, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 17:08:09,903 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-21 17:08:09,904 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-21 17:08:09,904 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:08:09,904 INFO L85 PathProgramCache]: Analyzing trace with hash -1164111799, now seen corresponding path program 1 times [2022-11-21 17:08:09,905 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 17:08:09,905 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1242010001] [2022-11-21 17:08:09,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:08:09,905 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 17:08:09,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:08:10,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-21 17:08:10,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:08:10,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:08:10,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:08:10,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-21 17:08:10,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:08:10,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:08:10,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:08:10,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-21 17:08:10,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:08:10,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:08:10,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:08:10,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-11-21 17:08:10,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:08:10,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:08:10,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:08:10,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-11-21 17:08:10,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:08:10,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:08:10,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:08:10,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-11-21 17:08:10,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:08:10,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-11-21 17:08:10,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:08:10,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-11-21 17:08:10,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:08:10,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-11-21 17:08:10,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:08:10,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-11-21 17:08:10,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:08:10,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:08:10,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:08:10,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-11-21 17:08:10,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:08:10,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-11-21 17:08:10,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:08:10,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2022-11-21 17:08:10,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:08:10,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-11-21 17:08:10,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:08:10,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2022-11-21 17:08:10,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:08:10,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2022-11-21 17:08:10,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:08:10,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2022-11-21 17:08:10,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:08:10,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2022-11-21 17:08:10,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:08:10,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2022-11-21 17:08:10,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:08:10,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2022-11-21 17:08:10,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:08:10,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-11-21 17:08:10,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:08:10,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2022-11-21 17:08:10,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:08:10,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2022-11-21 17:08:10,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:08:10,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2022-11-21 17:08:10,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:08:10,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2022-11-21 17:08:10,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:08:10,543 INFO L134 CoverageAnalysis]: Checked inductivity of 433 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 413 trivial. 0 not checked. [2022-11-21 17:08:10,543 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 17:08:10,543 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1242010001] [2022-11-21 17:08:10,544 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1242010001] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 17:08:10,544 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 17:08:10,544 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-21 17:08:10,544 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1701905952] [2022-11-21 17:08:10,545 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 17:08:10,545 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-21 17:08:10,545 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 17:08:10,546 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-21 17:08:10,546 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-21 17:08:10,546 INFO L87 Difference]: Start difference. First operand 24033 states and 35010 transitions. Second operand has 6 states, 6 states have (on average 10.5) internal successors, (63), 4 states have internal predecessors, (63), 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) [2022-11-21 17:08:14,296 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.85s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-21 17:08:15,420 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-21 17:08:24,725 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 17:08:24,725 INFO L93 Difference]: Finished difference Result 24155 states and 35220 transitions. [2022-11-21 17:08:24,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-21 17:08:24,726 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.5) internal successors, (63), 4 states have internal predecessors, (63), 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 204 [2022-11-21 17:08:24,726 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 17:08:24,823 INFO L225 Difference]: With dead ends: 24155 [2022-11-21 17:08:24,823 INFO L226 Difference]: Without dead ends: 24153 [2022-11-21 17:08:24,834 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-11-21 17:08:24,834 INFO L413 NwaCegarLoop]: 1292 mSDtfsCounter, 2429 mSDsluCounter, 2786 mSDsCounter, 0 mSdLazyCounter, 5129 mSolverCounterSat, 1737 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2682 SdHoareTripleChecker+Valid, 4078 SdHoareTripleChecker+Invalid, 6866 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1737 IncrementalHoareTripleChecker+Valid, 5129 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.8s IncrementalHoareTripleChecker+Time [2022-11-21 17:08:24,835 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2682 Valid, 4078 Invalid, 6866 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1737 Valid, 5129 Invalid, 0 Unknown, 0 Unchecked, 10.8s Time] [2022-11-21 17:08:24,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24153 states. [2022-11-21 17:08:27,573 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24153 to 24037. [2022-11-21 17:08:27,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24037 states, 14020 states have (on average 1.2456490727532097) internal successors, (17464), 14354 states have internal predecessors, (17464), 8722 states have call successors, (8722), 1293 states have call predecessors, (8722), 1292 states have return successors, (8827), 8521 states have call predecessors, (8827), 8719 states have call successors, (8827) [2022-11-21 17:08:27,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24037 states to 24037 states and 35013 transitions. [2022-11-21 17:08:27,718 INFO L78 Accepts]: Start accepts. Automaton has 24037 states and 35013 transitions. Word has length 204 [2022-11-21 17:08:27,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 17:08:27,719 INFO L495 AbstractCegarLoop]: Abstraction has 24037 states and 35013 transitions. [2022-11-21 17:08:27,719 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.5) internal successors, (63), 4 states have internal predecessors, (63), 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) [2022-11-21 17:08:27,719 INFO L276 IsEmpty]: Start isEmpty. Operand 24037 states and 35013 transitions. [2022-11-21 17:08:27,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2022-11-21 17:08:27,724 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 17:08:27,724 INFO L195 NwaCegarLoop]: trace histogram [12, 11, 11, 9, 9, 5, 5, 5, 5, 5, 5, 4, 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] [2022-11-21 17:08:27,725 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-11-21 17:08:27,725 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-21 17:08:27,725 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:08:27,726 INFO L85 PathProgramCache]: Analyzing trace with hash 17483136, now seen corresponding path program 1 times [2022-11-21 17:08:27,726 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 17:08:27,726 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [394220418] [2022-11-21 17:08:27,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:08:27,726 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 17:08:28,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:08:28,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-21 17:08:28,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:08:28,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:08:28,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:08:28,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-21 17:08:28,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:08:28,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:08:28,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:08:28,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-21 17:08:28,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:08:28,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:08:28,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:08:28,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-11-21 17:08:28,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:08:28,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:08:28,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:08:28,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-11-21 17:08:28,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:08:28,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:08:28,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:08:28,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-11-21 17:08:28,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:08:28,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-11-21 17:08:28,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:08:28,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-11-21 17:08:28,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:08:28,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-11-21 17:08:28,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:08:28,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-11-21 17:08:28,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:08:28,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:08:28,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:08:28,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-11-21 17:08:28,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:08:28,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-11-21 17:08:28,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:08:28,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-11-21 17:08:28,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:08:28,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-11-21 17:08:28,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:08:28,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-11-21 17:08:28,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:08:28,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-11-21 17:08:28,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:08:28,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2022-11-21 17:08:28,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:08:28,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2022-11-21 17:08:28,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:08:28,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2022-11-21 17:08:28,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:08:28,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2022-11-21 17:08:28,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:08:28,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2022-11-21 17:08:28,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:08:28,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2022-11-21 17:08:28,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:08:28,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-11-21 17:08:28,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:08:28,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2022-11-21 17:08:28,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:08:28,586 INFO L134 CoverageAnalysis]: Checked inductivity of 440 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 418 trivial. 0 not checked. [2022-11-21 17:08:28,586 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 17:08:28,586 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [394220418] [2022-11-21 17:08:28,586 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [394220418] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 17:08:28,587 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 17:08:28,587 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-21 17:08:28,587 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [359347573] [2022-11-21 17:08:28,587 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 17:08:28,588 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-21 17:08:28,588 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 17:08:28,589 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-21 17:08:28,589 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-21 17:08:28,589 INFO L87 Difference]: Start difference. First operand 24037 states and 35013 transitions. Second operand has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 4 states have internal predecessors, (52), 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) [2022-11-21 17:08:32,899 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.17s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-21 17:08:41,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 17:08:41,544 INFO L93 Difference]: Finished difference Result 24159 states and 35223 transitions. [2022-11-21 17:08:41,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-21 17:08:41,545 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 4 states have internal predecessors, (52), 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 189 [2022-11-21 17:08:41,546 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 17:08:41,652 INFO L225 Difference]: With dead ends: 24159 [2022-11-21 17:08:41,652 INFO L226 Difference]: Without dead ends: 24157 [2022-11-21 17:08:41,662 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-11-21 17:08:41,663 INFO L413 NwaCegarLoop]: 1293 mSDtfsCounter, 2440 mSDsluCounter, 2789 mSDsCounter, 0 mSdLazyCounter, 5129 mSolverCounterSat, 1736 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2694 SdHoareTripleChecker+Valid, 4082 SdHoareTripleChecker+Invalid, 6865 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1736 IncrementalHoareTripleChecker+Valid, 5129 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.2s IncrementalHoareTripleChecker+Time [2022-11-21 17:08:41,663 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2694 Valid, 4082 Invalid, 6865 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1736 Valid, 5129 Invalid, 0 Unknown, 0 Unchecked, 9.2s Time] [2022-11-21 17:08:41,683 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24157 states. [2022-11-21 17:08:44,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24157 to 24041. [2022-11-21 17:08:44,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24041 states, 14023 states have (on average 1.2455965200028525) internal successors, (17467), 14357 states have internal predecessors, (17467), 8722 states have call successors, (8722), 1294 states have call predecessors, (8722), 1293 states have return successors, (8827), 8521 states have call predecessors, (8827), 8719 states have call successors, (8827) [2022-11-21 17:08:45,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24041 states to 24041 states and 35016 transitions. [2022-11-21 17:08:45,121 INFO L78 Accepts]: Start accepts. Automaton has 24041 states and 35016 transitions. Word has length 189 [2022-11-21 17:08:45,122 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 17:08:45,122 INFO L495 AbstractCegarLoop]: Abstraction has 24041 states and 35016 transitions. [2022-11-21 17:08:45,122 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 4 states have internal predecessors, (52), 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) [2022-11-21 17:08:45,123 INFO L276 IsEmpty]: Start isEmpty. Operand 24041 states and 35016 transitions. [2022-11-21 17:08:45,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2022-11-21 17:08:45,128 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 17:08:45,128 INFO L195 NwaCegarLoop]: trace histogram [13, 12, 12, 9, 9, 5, 5, 5, 5, 5, 5, 4, 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] [2022-11-21 17:08:45,128 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-11-21 17:08:45,129 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-21 17:08:45,129 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:08:45,129 INFO L85 PathProgramCache]: Analyzing trace with hash -412028518, now seen corresponding path program 1 times [2022-11-21 17:08:45,129 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 17:08:45,130 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1428225919] [2022-11-21 17:08:45,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:08:45,130 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 17:08:45,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:08:45,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-21 17:08:45,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:08:45,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:08:45,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:08:45,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-21 17:08:45,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:08:45,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:08:45,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:08:45,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-21 17:08:45,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:08:45,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:08:45,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:08:45,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-11-21 17:08:45,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:08:45,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:08:45,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:08:45,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-11-21 17:08:45,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:08:45,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:08:45,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:08:45,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-11-21 17:08:45,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:08:45,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-11-21 17:08:45,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:08:45,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-11-21 17:08:45,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:08:45,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-11-21 17:08:45,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:08:45,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-11-21 17:08:45,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:08:45,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:08:45,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:08:45,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-11-21 17:08:45,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:08:45,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-11-21 17:08:45,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:08:45,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-11-21 17:08:45,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:08:45,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-11-21 17:08:45,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:08:45,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-11-21 17:08:45,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:08:45,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-11-21 17:08:45,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:08:45,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2022-11-21 17:08:45,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:08:45,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2022-11-21 17:08:45,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:08:45,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2022-11-21 17:08:45,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:08:45,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2022-11-21 17:08:45,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:08:45,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2022-11-21 17:08:45,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:08:45,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2022-11-21 17:08:45,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:08:45,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-11-21 17:08:45,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:08:45,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2022-11-21 17:08:45,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:08:45,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2022-11-21 17:08:45,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:08:45,796 INFO L134 CoverageAnalysis]: Checked inductivity of 486 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 462 trivial. 0 not checked. [2022-11-21 17:08:45,797 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 17:08:45,797 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1428225919] [2022-11-21 17:08:45,797 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1428225919] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 17:08:45,797 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 17:08:45,797 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-21 17:08:45,798 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1871288516] [2022-11-21 17:08:45,798 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 17:08:45,798 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-21 17:08:45,799 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 17:08:45,799 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-21 17:08:45,799 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-21 17:08:45,800 INFO L87 Difference]: Start difference. First operand 24041 states and 35016 transitions. Second operand has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 4 states have internal predecessors, (52), 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) [2022-11-21 17:08:48,987 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-21 17:08:58,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 17:08:58,589 INFO L93 Difference]: Finished difference Result 24163 states and 35226 transitions. [2022-11-21 17:08:58,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-21 17:08:58,590 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 4 states have internal predecessors, (52), 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 194 [2022-11-21 17:08:58,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 17:08:58,707 INFO L225 Difference]: With dead ends: 24163 [2022-11-21 17:08:58,707 INFO L226 Difference]: Without dead ends: 24159 [2022-11-21 17:08:58,722 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-11-21 17:08:58,722 INFO L413 NwaCegarLoop]: 1292 mSDtfsCounter, 2440 mSDsluCounter, 2786 mSDsCounter, 0 mSdLazyCounter, 5129 mSolverCounterSat, 1735 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2695 SdHoareTripleChecker+Valid, 4078 SdHoareTripleChecker+Invalid, 6864 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1735 IncrementalHoareTripleChecker+Valid, 5129 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.3s IncrementalHoareTripleChecker+Time [2022-11-21 17:08:58,723 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2695 Valid, 4078 Invalid, 6864 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1735 Valid, 5129 Invalid, 0 Unknown, 0 Unchecked, 9.3s Time] [2022-11-21 17:08:58,743 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24159 states. [2022-11-21 17:09:01,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24159 to 24043. [2022-11-21 17:09:01,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24043 states, 14025 states have (on average 1.2454901960784315) internal successors, (17468), 14358 states have internal predecessors, (17468), 8722 states have call successors, (8722), 1295 states have call predecessors, (8722), 1293 states have return successors, (8827), 8521 states have call predecessors, (8827), 8719 states have call successors, (8827) [2022-11-21 17:09:02,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24043 states to 24043 states and 35017 transitions. [2022-11-21 17:09:02,090 INFO L78 Accepts]: Start accepts. Automaton has 24043 states and 35017 transitions. Word has length 194 [2022-11-21 17:09:02,090 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 17:09:02,090 INFO L495 AbstractCegarLoop]: Abstraction has 24043 states and 35017 transitions. [2022-11-21 17:09:02,090 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 4 states have internal predecessors, (52), 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) [2022-11-21 17:09:02,090 INFO L276 IsEmpty]: Start isEmpty. Operand 24043 states and 35017 transitions. [2022-11-21 17:09:02,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2022-11-21 17:09:02,096 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 17:09:02,096 INFO L195 NwaCegarLoop]: trace histogram [14, 13, 13, 9, 9, 5, 5, 5, 5, 5, 5, 4, 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] [2022-11-21 17:09:02,096 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-11-21 17:09:02,097 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-21 17:09:02,097 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:09:02,097 INFO L85 PathProgramCache]: Analyzing trace with hash 1384209792, now seen corresponding path program 1 times [2022-11-21 17:09:02,098 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 17:09:02,098 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1700156381] [2022-11-21 17:09:02,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:09:02,098 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 17:09:02,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:09:02,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-21 17:09:02,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:09:02,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:09:02,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:09:02,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-21 17:09:02,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:09:02,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:09:02,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:09:02,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-21 17:09:02,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:09:02,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:09:02,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:09:02,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-11-21 17:09:02,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:09:02,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:09:02,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:09:02,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-11-21 17:09:02,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:09:02,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:09:02,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:09:02,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-11-21 17:09:02,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:09:02,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-11-21 17:09:02,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:09:02,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-11-21 17:09:02,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:09:02,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-11-21 17:09:02,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:09:02,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-11-21 17:09:02,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:09:02,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:09:02,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:09:02,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-11-21 17:09:02,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:09:02,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-11-21 17:09:02,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:09:02,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-11-21 17:09:02,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:09:02,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-11-21 17:09:02,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:09:02,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-11-21 17:09:02,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:09:02,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-11-21 17:09:02,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:09:02,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2022-11-21 17:09:02,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:09:02,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2022-11-21 17:09:02,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:09:02,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2022-11-21 17:09:02,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:09:02,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2022-11-21 17:09:02,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:09:02,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2022-11-21 17:09:02,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:09:02,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2022-11-21 17:09:02,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:09:02,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-11-21 17:09:02,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:09:02,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2022-11-21 17:09:02,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:09:02,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2022-11-21 17:09:02,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:09:02,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2022-11-21 17:09:02,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:09:02,762 INFO L134 CoverageAnalysis]: Checked inductivity of 536 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 510 trivial. 0 not checked. [2022-11-21 17:09:02,763 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 17:09:02,763 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1700156381] [2022-11-21 17:09:02,766 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1700156381] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 17:09:02,766 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 17:09:02,767 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-21 17:09:02,768 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1268480697] [2022-11-21 17:09:02,768 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 17:09:02,770 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-21 17:09:02,770 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 17:09:02,770 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-21 17:09:02,771 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-21 17:09:02,771 INFO L87 Difference]: Start difference. First operand 24043 states and 35017 transitions. Second operand has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 4 states have internal predecessors, (52), 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) [2022-11-21 17:09:06,644 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.28s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-21 17:09:07,975 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.33s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-21 17:09:16,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 17:09:16,911 INFO L93 Difference]: Finished difference Result 24159 states and 35222 transitions. [2022-11-21 17:09:16,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-21 17:09:16,912 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 4 states have internal predecessors, (52), 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 199 [2022-11-21 17:09:16,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 17:09:17,169 INFO L225 Difference]: With dead ends: 24159 [2022-11-21 17:09:17,169 INFO L226 Difference]: Without dead ends: 23941 [2022-11-21 17:09:17,181 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-11-21 17:09:17,181 INFO L413 NwaCegarLoop]: 1293 mSDtfsCounter, 2434 mSDsluCounter, 2789 mSDsCounter, 0 mSdLazyCounter, 5121 mSolverCounterSat, 1734 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2688 SdHoareTripleChecker+Valid, 4082 SdHoareTripleChecker+Invalid, 6855 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1734 IncrementalHoareTripleChecker+Valid, 5121 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.1s IncrementalHoareTripleChecker+Time [2022-11-21 17:09:17,182 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2688 Valid, 4082 Invalid, 6855 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1734 Valid, 5121 Invalid, 0 Unknown, 0 Unchecked, 10.1s Time] [2022-11-21 17:09:17,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23941 states. [2022-11-21 17:09:20,371 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23941 to 23825. [2022-11-21 17:09:20,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23825 states, 13877 states have (on average 1.2450817900122504) internal successors, (17278), 14194 states have internal predecessors, (17278), 8669 states have call successors, (8669), 1277 states have call predecessors, (8669), 1277 states have return successors, (8777), 8485 states have call predecessors, (8777), 8669 states have call successors, (8777) [2022-11-21 17:09:20,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23825 states to 23825 states and 34724 transitions. [2022-11-21 17:09:20,517 INFO L78 Accepts]: Start accepts. Automaton has 23825 states and 34724 transitions. Word has length 199 [2022-11-21 17:09:20,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 17:09:20,518 INFO L495 AbstractCegarLoop]: Abstraction has 23825 states and 34724 transitions. [2022-11-21 17:09:20,518 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 4 states have internal predecessors, (52), 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) [2022-11-21 17:09:20,518 INFO L276 IsEmpty]: Start isEmpty. Operand 23825 states and 34724 transitions. [2022-11-21 17:09:20,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2022-11-21 17:09:20,525 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 17:09:20,525 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 6, 6, 6, 5, 5, 5, 5, 5, 5, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 17:09:20,526 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-11-21 17:09:20,526 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-21 17:09:20,527 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:09:20,527 INFO L85 PathProgramCache]: Analyzing trace with hash 1756300220, now seen corresponding path program 1 times [2022-11-21 17:09:20,527 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 17:09:20,527 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1532885873] [2022-11-21 17:09:20,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:09:20,528 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 17:09:20,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:09:20,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-21 17:09:20,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:09:20,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:09:20,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:09:20,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-21 17:09:20,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:09:21,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:09:21,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:09:21,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-21 17:09:21,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:09:21,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:09:21,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:09:21,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-11-21 17:09:21,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:09:21,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:09:21,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:09:21,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-11-21 17:09:21,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:09:21,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:09:21,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:09:21,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-11-21 17:09:21,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:09:21,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-11-21 17:09:21,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:09:21,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-11-21 17:09:21,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:09:21,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-11-21 17:09:21,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:09:21,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-11-21 17:09:21,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:09:21,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-11-21 17:09:21,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:09:21,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:09:21,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:09:21,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-11-21 17:09:21,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:09:21,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2022-11-21 17:09:21,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:09:21,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-11-21 17:09:21,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:09:21,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-21 17:09:21,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:09:21,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-21 17:09:21,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:09:21,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-21 17:09:21,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:09:21,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-11-21 17:09:21,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:09:21,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-11-21 17:09:21,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:09:21,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-21 17:09:21,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:09:21,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2022-11-21 17:09:21,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:09:21,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2022-11-21 17:09:21,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:09:21,235 INFO L134 CoverageAnalysis]: Checked inductivity of 298 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 288 trivial. 0 not checked. [2022-11-21 17:09:21,235 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 17:09:21,235 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1532885873] [2022-11-21 17:09:21,236 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1532885873] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 17:09:21,236 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 17:09:21,236 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-21 17:09:21,236 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1074834521] [2022-11-21 17:09:21,236 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 17:09:21,237 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-21 17:09:21,237 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 17:09:21,238 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-21 17:09:21,238 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-21 17:09:21,238 INFO L87 Difference]: Start difference. First operand 23825 states and 34724 transitions. Second operand has 5 states, 5 states have (on average 21.4) internal successors, (107), 3 states have internal predecessors, (107), 3 states have call successors, (26), 4 states have call predecessors, (26), 1 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) [2022-11-21 17:09:24,543 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.30s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-21 17:09:29,783 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.51s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-21 17:09:44,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 17:09:44,764 INFO L93 Difference]: Finished difference Result 56544 states and 82589 transitions. [2022-11-21 17:09:44,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-21 17:09:44,765 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.4) internal successors, (107), 3 states have internal predecessors, (107), 3 states have call successors, (26), 4 states have call predecessors, (26), 1 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) Word has length 218 [2022-11-21 17:09:44,765 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 17:09:44,915 INFO L225 Difference]: With dead ends: 56544 [2022-11-21 17:09:44,915 INFO L226 Difference]: Without dead ends: 32775 [2022-11-21 17:09:45,001 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-11-21 17:09:45,002 INFO L413 NwaCegarLoop]: 1895 mSDtfsCounter, 2720 mSDsluCounter, 2003 mSDsCounter, 0 mSdLazyCounter, 5261 mSolverCounterSat, 2447 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3205 SdHoareTripleChecker+Valid, 3898 SdHoareTripleChecker+Invalid, 7708 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2447 IncrementalHoareTripleChecker+Valid, 5261 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.7s IncrementalHoareTripleChecker+Time [2022-11-21 17:09:45,002 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3205 Valid, 3898 Invalid, 7708 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2447 Valid, 5261 Invalid, 0 Unknown, 0 Unchecked, 17.7s Time] [2022-11-21 17:09:45,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32775 states. [2022-11-21 17:09:49,264 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32775 to 32413. [2022-11-21 17:09:49,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32413 states, 18800 states have (on average 1.2446808510638299) internal successors, (23400), 19205 states have internal predecessors, (23400), 11861 states have call successors, (11861), 1750 states have call predecessors, (11861), 1750 states have return successors, (11969), 11635 states have call predecessors, (11969), 11861 states have call successors, (11969) [2022-11-21 17:09:49,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32413 states to 32413 states and 47230 transitions. [2022-11-21 17:09:49,460 INFO L78 Accepts]: Start accepts. Automaton has 32413 states and 47230 transitions. Word has length 218 [2022-11-21 17:09:49,461 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 17:09:49,461 INFO L495 AbstractCegarLoop]: Abstraction has 32413 states and 47230 transitions. [2022-11-21 17:09:49,461 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.4) internal successors, (107), 3 states have internal predecessors, (107), 3 states have call successors, (26), 4 states have call predecessors, (26), 1 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) [2022-11-21 17:09:49,461 INFO L276 IsEmpty]: Start isEmpty. Operand 32413 states and 47230 transitions. [2022-11-21 17:09:49,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 293 [2022-11-21 17:09:49,468 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 17:09:49,468 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 10, 10, 10, 5, 5, 5, 5, 5, 5, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 17:09:49,468 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-11-21 17:09:49,469 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-21 17:09:49,469 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:09:49,469 INFO L85 PathProgramCache]: Analyzing trace with hash -1758399685, now seen corresponding path program 1 times [2022-11-21 17:09:49,469 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 17:09:49,470 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1546489345] [2022-11-21 17:09:49,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:09:49,470 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 17:09:49,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:09:49,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-21 17:09:49,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:09:49,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:09:49,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:09:49,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-21 17:09:49,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:09:49,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:09:49,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:09:49,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-21 17:09:49,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:09:49,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:09:49,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:09:49,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-11-21 17:09:49,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:09:49,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:09:49,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:09:49,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-11-21 17:09:49,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:09:49,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:09:49,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:09:49,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-11-21 17:09:49,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:09:49,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-11-21 17:09:49,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:09:49,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-11-21 17:09:49,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:09:49,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-11-21 17:09:49,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:09:49,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-11-21 17:09:49,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:09:49,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-11-21 17:09:49,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:09:49,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:09:49,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:09:49,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-11-21 17:09:49,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:09:49,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2022-11-21 17:09:49,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:09:49,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2022-11-21 17:09:49,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:09:49,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:09:49,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:09:49,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-21 17:09:49,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:09:49,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-21 17:09:49,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:09:49,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2022-11-21 17:09:49,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:09:49,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:09:49,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:09:49,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-21 17:09:49,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:09:49,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-21 17:09:49,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:09:49,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2022-11-21 17:09:49,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:09:49,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2022-11-21 17:09:49,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:09:49,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2022-11-21 17:09:49,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:09:49,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-21 17:09:49,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:09:49,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-21 17:09:49,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:09:50,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-21 17:09:50,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:09:50,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-11-21 17:09:50,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:09:50,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-11-21 17:09:50,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:09:50,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-21 17:09:50,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:09:50,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 269 [2022-11-21 17:09:50,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:09:50,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2022-11-21 17:09:50,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:09:50,032 INFO L134 CoverageAnalysis]: Checked inductivity of 518 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 491 trivial. 0 not checked. [2022-11-21 17:09:50,032 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 17:09:50,033 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1546489345] [2022-11-21 17:09:50,033 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1546489345] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 17:09:50,033 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 17:09:50,033 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-21 17:09:50,033 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1753804922] [2022-11-21 17:09:50,033 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 17:09:50,034 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-21 17:09:50,034 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 17:09:50,035 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-21 17:09:50,035 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-21 17:09:50,035 INFO L87 Difference]: Start difference. First operand 32413 states and 47230 transitions. Second operand has 5 states, 5 states have (on average 27.6) internal successors, (138), 3 states have internal predecessors, (138), 3 states have call successors, (32), 4 states have call predecessors, (32), 1 states have return successors, (30), 3 states have call predecessors, (30), 3 states have call successors, (30) [2022-11-21 17:09:55,037 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-21 17:09:56,625 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.59s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-21 17:10:14,813 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 17:10:14,813 INFO L93 Difference]: Finished difference Result 73777 states and 107685 transitions. [2022-11-21 17:10:14,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-21 17:10:14,814 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 27.6) internal successors, (138), 3 states have internal predecessors, (138), 3 states have call successors, (32), 4 states have call predecessors, (32), 1 states have return successors, (30), 3 states have call predecessors, (30), 3 states have call successors, (30) Word has length 292 [2022-11-21 17:10:14,815 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 17:10:15,027 INFO L225 Difference]: With dead ends: 73777 [2022-11-21 17:10:15,028 INFO L226 Difference]: Without dead ends: 41377 [2022-11-21 17:10:15,153 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 77 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-11-21 17:10:15,154 INFO L413 NwaCegarLoop]: 1902 mSDtfsCounter, 2717 mSDsluCounter, 2018 mSDsCounter, 0 mSdLazyCounter, 5259 mSolverCounterSat, 2443 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3199 SdHoareTripleChecker+Valid, 3920 SdHoareTripleChecker+Invalid, 7703 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2443 IncrementalHoareTripleChecker+Valid, 5259 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.4s IncrementalHoareTripleChecker+Time [2022-11-21 17:10:15,155 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3199 Valid, 3920 Invalid, 7703 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2443 Valid, 5259 Invalid, 1 Unknown, 0 Unchecked, 17.4s Time] [2022-11-21 17:10:15,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41377 states.