./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-mutex_drivers-net-wireless-prism54-prism54.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 839c364b Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a9668e5-f1f1-4772-9e7a-7d9fea3a85d1/bin/uautomizer-DrprNOufMa/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a9668e5-f1f1-4772-9e7a-7d9fea3a85d1/bin/uautomizer-DrprNOufMa/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a9668e5-f1f1-4772-9e7a-7d9fea3a85d1/bin/uautomizer-DrprNOufMa/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a9668e5-f1f1-4772-9e7a-7d9fea3a85d1/bin/uautomizer-DrprNOufMa/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-wireless-prism54-prism54.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a9668e5-f1f1-4772-9e7a-7d9fea3a85d1/bin/uautomizer-DrprNOufMa/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a9668e5-f1f1-4772-9e7a-7d9fea3a85d1/bin/uautomizer-DrprNOufMa --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 2bf48d35d7133b2e8327bc0634357c212875c286543fcf18078150bbf7eff020 --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-12-06 20:42:13,782 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-06 20:42:13,783 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-06 20:42:13,805 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-06 20:42:13,805 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-06 20:42:13,806 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-06 20:42:13,807 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-06 20:42:13,809 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-06 20:42:13,810 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-06 20:42:13,811 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-06 20:42:13,812 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-06 20:42:13,813 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-06 20:42:13,813 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-06 20:42:13,814 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-06 20:42:13,815 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-06 20:42:13,816 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-06 20:42:13,817 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-06 20:42:13,818 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-06 20:42:13,819 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-06 20:42:13,821 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-06 20:42:13,822 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-06 20:42:13,823 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-06 20:42:13,824 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-06 20:42:13,825 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-06 20:42:13,828 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-06 20:42:13,828 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-06 20:42:13,828 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-06 20:42:13,829 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-06 20:42:13,829 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-06 20:42:13,830 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-06 20:42:13,830 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-06 20:42:13,831 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-06 20:42:13,832 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-06 20:42:13,832 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-06 20:42:13,833 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-06 20:42:13,833 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-06 20:42:13,834 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-06 20:42:13,834 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-06 20:42:13,834 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-06 20:42:13,835 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-06 20:42:13,836 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-06 20:42:13,837 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a9668e5-f1f1-4772-9e7a-7d9fea3a85d1/bin/uautomizer-DrprNOufMa/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-12-06 20:42:13,858 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-06 20:42:13,858 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-06 20:42:13,858 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-06 20:42:13,858 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-06 20:42:13,859 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-06 20:42:13,859 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-06 20:42:13,859 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-06 20:42:13,860 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-06 20:42:13,860 INFO L138 SettingsManager]: * Use SBE=true [2021-12-06 20:42:13,860 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-06 20:42:13,860 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-06 20:42:13,860 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-06 20:42:13,860 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-06 20:42:13,860 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-06 20:42:13,861 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-06 20:42:13,861 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-06 20:42:13,861 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-06 20:42:13,861 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-06 20:42:13,861 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-06 20:42:13,861 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-06 20:42:13,861 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-06 20:42:13,862 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-06 20:42:13,862 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-06 20:42:13,862 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-06 20:42:13,862 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-06 20:42:13,862 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-06 20:42:13,862 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-06 20:42:13,862 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-06 20:42:13,862 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-06 20:42:13,862 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-06 20:42:13,863 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-06 20:42:13,863 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_6a9668e5-f1f1-4772-9e7a-7d9fea3a85d1/bin/uautomizer-DrprNOufMa/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a9668e5-f1f1-4772-9e7a-7d9fea3a85d1/bin/uautomizer-DrprNOufMa Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2bf48d35d7133b2e8327bc0634357c212875c286543fcf18078150bbf7eff020 [2021-12-06 20:42:14,056 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-06 20:42:14,073 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-06 20:42:14,075 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-06 20:42:14,076 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-06 20:42:14,077 INFO L275 PluginConnector]: CDTParser initialized [2021-12-06 20:42:14,078 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a9668e5-f1f1-4772-9e7a-7d9fea3a85d1/bin/uautomizer-DrprNOufMa/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-wireless-prism54-prism54.cil.i [2021-12-06 20:42:14,129 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a9668e5-f1f1-4772-9e7a-7d9fea3a85d1/bin/uautomizer-DrprNOufMa/data/a867c4182/1aa0968e01ab48eaa206bf4f62cd8c3c/FLAG6174723e1 [2021-12-06 20:42:14,805 INFO L306 CDTParser]: Found 1 translation units. [2021-12-06 20:42:14,806 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a9668e5-f1f1-4772-9e7a-7d9fea3a85d1/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-wireless-prism54-prism54.cil.i [2021-12-06 20:42:14,838 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a9668e5-f1f1-4772-9e7a-7d9fea3a85d1/bin/uautomizer-DrprNOufMa/data/a867c4182/1aa0968e01ab48eaa206bf4f62cd8c3c/FLAG6174723e1 [2021-12-06 20:42:15,171 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a9668e5-f1f1-4772-9e7a-7d9fea3a85d1/bin/uautomizer-DrprNOufMa/data/a867c4182/1aa0968e01ab48eaa206bf4f62cd8c3c [2021-12-06 20:42:15,178 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-06 20:42:15,183 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-06 20:42:15,188 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-06 20:42:15,188 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-06 20:42:15,198 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-06 20:42:15,200 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 08:42:15" (1/1) ... [2021-12-06 20:42:15,203 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@77e18a2c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 08:42:15, skipping insertion in model container [2021-12-06 20:42:15,204 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 08:42:15" (1/1) ... [2021-12-06 20:42:15,222 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-06 20:42:15,364 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-06 20:42:18,573 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a9668e5-f1f1-4772-9e7a-7d9fea3a85d1/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-wireless-prism54-prism54.cil.i[469707,469720] [2021-12-06 20:42:18,576 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a9668e5-f1f1-4772-9e7a-7d9fea3a85d1/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-wireless-prism54-prism54.cil.i[469873,469886] [2021-12-06 20:42:18,576 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a9668e5-f1f1-4772-9e7a-7d9fea3a85d1/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-wireless-prism54-prism54.cil.i[470037,470050] [2021-12-06 20:42:18,576 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a9668e5-f1f1-4772-9e7a-7d9fea3a85d1/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-wireless-prism54-prism54.cil.i[470202,470215] [2021-12-06 20:42:18,601 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-06 20:42:18,686 INFO L203 MainTranslator]: Completed pre-run [2021-12-06 20:42:19,044 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a9668e5-f1f1-4772-9e7a-7d9fea3a85d1/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-wireless-prism54-prism54.cil.i[469707,469720] [2021-12-06 20:42:19,045 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a9668e5-f1f1-4772-9e7a-7d9fea3a85d1/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-wireless-prism54-prism54.cil.i[469873,469886] [2021-12-06 20:42:19,045 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a9668e5-f1f1-4772-9e7a-7d9fea3a85d1/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-wireless-prism54-prism54.cil.i[470037,470050] [2021-12-06 20:42:19,045 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a9668e5-f1f1-4772-9e7a-7d9fea3a85d1/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-wireless-prism54-prism54.cil.i[470202,470215] [2021-12-06 20:42:19,052 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-06 20:42:19,281 INFO L208 MainTranslator]: Completed translation [2021-12-06 20:42:19,282 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 08:42:19 WrapperNode [2021-12-06 20:42:19,282 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-06 20:42:19,283 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-06 20:42:19,283 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-06 20:42:19,283 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-06 20:42:19,288 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 08:42:19" (1/1) ... [2021-12-06 20:42:19,383 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 08:42:19" (1/1) ... [2021-12-06 20:42:19,641 INFO L137 Inliner]: procedures = 538, calls = 6232, calls flagged for inlining = 274, calls inlined = 248, statements flattened = 8897 [2021-12-06 20:42:19,641 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-06 20:42:19,642 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-06 20:42:19,642 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-06 20:42:19,642 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-06 20:42:19,651 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 08:42:19" (1/1) ... [2021-12-06 20:42:19,651 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 08:42:19" (1/1) ... [2021-12-06 20:42:19,697 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 08:42:19" (1/1) ... [2021-12-06 20:42:19,697 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 08:42:19" (1/1) ... [2021-12-06 20:42:19,871 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 08:42:19" (1/1) ... [2021-12-06 20:42:19,896 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 08:42:19" (1/1) ... [2021-12-06 20:42:19,939 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 08:42:19" (1/1) ... [2021-12-06 20:42:19,988 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-06 20:42:19,989 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-06 20:42:19,990 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-06 20:42:19,990 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-06 20:42:19,991 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 08:42:19" (1/1) ... [2021-12-06 20:42:19,998 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-06 20:42:20,008 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a9668e5-f1f1-4772-9e7a-7d9fea3a85d1/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 20:42:20,019 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a9668e5-f1f1-4772-9e7a-7d9fea3a85d1/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-06 20:42:20,021 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a9668e5-f1f1-4772-9e7a-7d9fea3a85d1/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-06 20:42:20,056 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_or_killable_lock_of_islpci_acl [2021-12-06 20:42:20,056 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_or_killable_lock_of_islpci_acl [2021-12-06 20:42:20,056 INFO L130 BoogieDeclarations]: Found specification of procedure mgt_le_to_cpu [2021-12-06 20:42:20,056 INFO L138 BoogieDeclarations]: Found implementation of procedure mgt_le_to_cpu [2021-12-06 20:42:20,056 INFO L130 BoogieDeclarations]: Found specification of procedure islpci_eth_tx_timeout [2021-12-06 20:42:20,056 INFO L138 BoogieDeclarations]: Found implementation of procedure islpci_eth_tx_timeout [2021-12-06 20:42:20,056 INFO L130 BoogieDeclarations]: Found specification of procedure __xchg_wrong_size [2021-12-06 20:42:20,057 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2021-12-06 20:42:20,057 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2021-12-06 20:42:20,057 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-12-06 20:42:20,057 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-12-06 20:42:20,057 INFO L130 BoogieDeclarations]: Found specification of procedure islpci_trigger [2021-12-06 20:42:20,057 INFO L138 BoogieDeclarations]: Found implementation of procedure islpci_trigger [2021-12-06 20:42:20,057 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2021-12-06 20:42:20,058 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2021-12-06 20:42:20,058 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-12-06 20:42:20,058 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-12-06 20:42:20,058 INFO L130 BoogieDeclarations]: Found specification of procedure prism54_mib_mode_helper [2021-12-06 20:42:20,058 INFO L138 BoogieDeclarations]: Found implementation of procedure prism54_mib_mode_helper [2021-12-06 20:42:20,058 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2021-12-06 20:42:20,058 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2021-12-06 20:42:20,058 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_on [2021-12-06 20:42:20,059 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_on [2021-12-06 20:42:20,059 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2021-12-06 20:42:20,059 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2021-12-06 20:42:20,059 INFO L130 BoogieDeclarations]: Found specification of procedure mgt_set_request [2021-12-06 20:42:20,059 INFO L138 BoogieDeclarations]: Found implementation of procedure mgt_set_request [2021-12-06 20:42:20,059 INFO L130 BoogieDeclarations]: Found specification of procedure mgt_cpu_to_le [2021-12-06 20:42:20,059 INFO L138 BoogieDeclarations]: Found implementation of procedure mgt_cpu_to_le [2021-12-06 20:42:20,059 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2021-12-06 20:42:20,060 INFO L130 BoogieDeclarations]: Found specification of procedure islpci_get_state [2021-12-06 20:42:20,060 INFO L138 BoogieDeclarations]: Found implementation of procedure islpci_get_state [2021-12-06 20:42:20,060 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2021-12-06 20:42:20,060 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2021-12-06 20:42:20,060 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-12-06 20:42:20,060 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2021-12-06 20:42:20,060 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2021-12-06 20:42:20,060 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2021-12-06 20:42:20,061 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2021-12-06 20:42:20,061 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2021-12-06 20:42:20,061 INFO L130 BoogieDeclarations]: Found specification of procedure islpci_mgt_release [2021-12-06 20:42:20,061 INFO L138 BoogieDeclarations]: Found implementation of procedure islpci_mgt_release [2021-12-06 20:42:20,061 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-12-06 20:42:20,061 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-12-06 20:42:20,061 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exit [2021-12-06 20:42:20,061 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exit [2021-12-06 20:42:20,062 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2021-12-06 20:42:20,062 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2021-12-06 20:42:20,062 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock_try [2021-12-06 20:42:20,062 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock_try [2021-12-06 20:42:20,062 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2021-12-06 20:42:20,062 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2021-12-06 20:42:20,062 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-06 20:42:20,062 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_wpa_lock_of_NOT_ARG_SIGN [2021-12-06 20:42:20,063 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_wpa_lock_of_NOT_ARG_SIGN [2021-12-06 20:42:20,063 INFO L130 BoogieDeclarations]: Found specification of procedure send_simple_event [2021-12-06 20:42:20,063 INFO L138 BoogieDeclarations]: Found implementation of procedure send_simple_event [2021-12-06 20:42:20,063 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2021-12-06 20:42:20,063 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2021-12-06 20:42:20,063 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2021-12-06 20:42:20,063 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2021-12-06 20:42:20,063 INFO L130 BoogieDeclarations]: Found specification of procedure send_formatted_event [2021-12-06 20:42:20,064 INFO L138 BoogieDeclarations]: Found implementation of procedure send_formatted_event [2021-12-06 20:42:20,064 INFO L130 BoogieDeclarations]: Found specification of procedure mgt_set [2021-12-06 20:42:20,064 INFO L138 BoogieDeclarations]: Found implementation of procedure mgt_set [2021-12-06 20:42:20,064 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2021-12-06 20:42:20,064 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2021-12-06 20:42:20,064 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2021-12-06 20:42:20,064 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2021-12-06 20:42:20,064 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-12-06 20:42:20,065 INFO L130 BoogieDeclarations]: Found specification of procedure islpci_reset [2021-12-06 20:42:20,065 INFO L138 BoogieDeclarations]: Found implementation of procedure islpci_reset [2021-12-06 20:42:20,065 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2021-12-06 20:42:20,065 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2021-12-06 20:42:20,065 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_netdev [2021-12-06 20:42:20,065 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_netdev [2021-12-06 20:42:20,065 INFO L130 BoogieDeclarations]: Found specification of procedure skb_copy_from_linear_data [2021-12-06 20:42:20,065 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_copy_from_linear_data [2021-12-06 20:42:20,065 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-12-06 20:42:20,066 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2021-12-06 20:42:20,066 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2021-12-06 20:42:20,066 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-06 20:42:20,066 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2021-12-06 20:42:20,066 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2021-12-06 20:42:20,066 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-12-06 20:42:20,066 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-12-06 20:42:20,066 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2021-12-06 20:42:20,067 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2021-12-06 20:42:20,067 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2021-12-06 20:42:20,067 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2021-12-06 20:42:20,067 INFO L130 BoogieDeclarations]: Found specification of procedure islpci_open [2021-12-06 20:42:20,067 INFO L138 BoogieDeclarations]: Found implementation of procedure islpci_open [2021-12-06 20:42:20,067 INFO L130 BoogieDeclarations]: Found specification of procedure prism54_resume [2021-12-06 20:42:20,067 INFO L138 BoogieDeclarations]: Found implementation of procedure prism54_resume [2021-12-06 20:42:20,067 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2021-12-06 20:42:20,068 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2021-12-06 20:42:20,068 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-06 20:42:20,068 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2021-12-06 20:42:20,068 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2021-12-06 20:42:20,068 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2021-12-06 20:42:20,068 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2021-12-06 20:42:20,068 INFO L130 BoogieDeclarations]: Found specification of procedure up_read [2021-12-06 20:42:20,068 INFO L138 BoogieDeclarations]: Found implementation of procedure up_read [2021-12-06 20:42:20,069 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2021-12-06 20:42:20,069 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2021-12-06 20:42:20,069 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-06 20:42:20,069 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-12-06 20:42:20,069 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-12-06 20:42:20,069 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2021-12-06 20:42:20,069 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2021-12-06 20:42:20,069 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-06 20:42:20,070 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-12-06 20:42:20,070 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-12-06 20:42:20,070 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-12-06 20:42:20,070 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_stats_lock_of_NOT_ARG_SIGN [2021-12-06 20:42:20,070 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_stats_lock_of_NOT_ARG_SIGN [2021-12-06 20:42:20,070 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2021-12-06 20:42:20,070 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2021-12-06 20:42:20,070 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2021-12-06 20:42:20,071 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2021-12-06 20:42:20,071 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-12-06 20:42:20,071 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-12-06 20:42:20,071 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_wpa_lock_of_NOT_ARG_SIGN [2021-12-06 20:42:20,071 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_wpa_lock_of_NOT_ARG_SIGN [2021-12-06 20:42:20,071 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2021-12-06 20:42:20,071 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2021-12-06 20:42:20,071 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2021-12-06 20:42:20,072 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2021-12-06 20:42:20,072 INFO L130 BoogieDeclarations]: Found specification of procedure down_write [2021-12-06 20:42:20,072 INFO L138 BoogieDeclarations]: Found implementation of procedure down_write [2021-12-06 20:42:20,072 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2021-12-06 20:42:20,072 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2021-12-06 20:42:20,072 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2021-12-06 20:42:20,072 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2021-12-06 20:42:20,072 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_prism54_module_exit_12_2 [2021-12-06 20:42:20,073 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_prism54_module_exit_12_2 [2021-12-06 20:42:20,073 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_timeout_uninterruptible [2021-12-06 20:42:20,073 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_timeout_uninterruptible [2021-12-06 20:42:20,073 INFO L130 BoogieDeclarations]: Found specification of procedure finish_wait [2021-12-06 20:42:20,073 INFO L138 BoogieDeclarations]: Found implementation of procedure finish_wait [2021-12-06 20:42:20,073 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-06 20:42:20,073 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-06 20:42:20,073 INFO L130 BoogieDeclarations]: Found specification of procedure wireless_send_event [2021-12-06 20:42:20,073 INFO L138 BoogieDeclarations]: Found implementation of procedure wireless_send_event [2021-12-06 20:42:20,074 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab32 [2021-12-06 20:42:20,074 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab32 [2021-12-06 20:42:20,074 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy [2021-12-06 20:42:20,074 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy [2021-12-06 20:42:20,074 INFO L130 BoogieDeclarations]: Found specification of procedure prism54_clear_mac [2021-12-06 20:42:20,074 INFO L138 BoogieDeclarations]: Found implementation of procedure prism54_clear_mac [2021-12-06 20:42:20,074 INFO L130 BoogieDeclarations]: Found specification of procedure prism54_wpa_bss_ie_get [2021-12-06 20:42:20,074 INFO L138 BoogieDeclarations]: Found implementation of procedure prism54_wpa_bss_ie_get [2021-12-06 20:42:20,074 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-12-06 20:42:20,075 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-12-06 20:42:20,075 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-12-06 20:42:20,075 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-12-06 20:42:20,075 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2021-12-06 20:42:20,075 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2021-12-06 20:42:20,075 INFO L130 BoogieDeclarations]: Found specification of procedure handle_request [2021-12-06 20:42:20,075 INFO L138 BoogieDeclarations]: Found implementation of procedure handle_request [2021-12-06 20:42:20,075 INFO L130 BoogieDeclarations]: Found specification of procedure prism54_bring_down [2021-12-06 20:42:20,076 INFO L138 BoogieDeclarations]: Found implementation of procedure prism54_bring_down [2021-12-06 20:42:20,076 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_stats_lock_of_NOT_ARG_SIGN [2021-12-06 20:42:20,076 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_stats_lock_of_NOT_ARG_SIGN [2021-12-06 20:42:20,076 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2021-12-06 20:42:20,076 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2021-12-06 20:42:20,076 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-12-06 20:42:20,076 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-12-06 20:42:20,076 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2021-12-06 20:42:20,076 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2021-12-06 20:42:20,077 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2021-12-06 20:42:20,077 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2021-12-06 20:42:20,077 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2021-12-06 20:42:20,077 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2021-12-06 20:42:20,077 INFO L130 BoogieDeclarations]: Found specification of procedure netif_start_queue [2021-12-06 20:42:20,077 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_start_queue [2021-12-06 20:42:20,077 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-06 20:42:20,077 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2021-12-06 20:42:20,077 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2021-12-06 20:42:20,078 INFO L130 BoogieDeclarations]: Found specification of procedure islpci_set_state [2021-12-06 20:42:20,078 INFO L138 BoogieDeclarations]: Found implementation of procedure islpci_set_state [2021-12-06 20:42:20,078 INFO L130 BoogieDeclarations]: Found specification of procedure down_read [2021-12-06 20:42:20,078 INFO L138 BoogieDeclarations]: Found implementation of procedure down_read [2021-12-06 20:42:20,078 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-06 20:42:20,078 INFO L130 BoogieDeclarations]: Found specification of procedure mgt_set_varlen [2021-12-06 20:42:20,078 INFO L138 BoogieDeclarations]: Found implementation of procedure mgt_set_varlen [2021-12-06 20:42:20,078 INFO L130 BoogieDeclarations]: Found specification of procedure up_write [2021-12-06 20:42:20,079 INFO L138 BoogieDeclarations]: Found implementation of procedure up_write [2021-12-06 20:42:20,079 INFO L130 BoogieDeclarations]: Found specification of procedure pci_clear_mwi [2021-12-06 20:42:20,079 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_clear_mwi [2021-12-06 20:42:20,079 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-06 20:42:20,079 INFO L130 BoogieDeclarations]: Found specification of procedure islpci_close [2021-12-06 20:42:20,079 INFO L138 BoogieDeclarations]: Found implementation of procedure islpci_close [2021-12-06 20:42:20,079 INFO L130 BoogieDeclarations]: Found specification of procedure pci_write_config_byte [2021-12-06 20:42:20,079 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_write_config_byte [2021-12-06 20:42:20,079 INFO L130 BoogieDeclarations]: Found specification of procedure mgt_get_request [2021-12-06 20:42:20,080 INFO L138 BoogieDeclarations]: Found implementation of procedure mgt_get_request [2021-12-06 20:42:20,080 INFO L130 BoogieDeclarations]: Found specification of procedure __mutex_init [2021-12-06 20:42:20,080 INFO L138 BoogieDeclarations]: Found implementation of procedure __mutex_init [2021-12-06 20:42:20,080 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2021-12-06 20:42:20,080 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2021-12-06 20:42:20,080 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2021-12-06 20:42:20,080 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2021-12-06 20:42:20,080 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2021-12-06 20:42:20,080 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2021-12-06 20:42:20,081 INFO L130 BoogieDeclarations]: Found specification of procedure prism54_remove [2021-12-06 20:42:20,081 INFO L138 BoogieDeclarations]: Found implementation of procedure prism54_remove [2021-12-06 20:42:20,081 INFO L130 BoogieDeclarations]: Found specification of procedure isl38xx_w32_flush [2021-12-06 20:42:20,081 INFO L138 BoogieDeclarations]: Found implementation of procedure isl38xx_w32_flush [2021-12-06 20:42:20,081 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2021-12-06 20:42:20,081 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2021-12-06 20:42:20,081 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2021-12-06 20:42:20,081 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2021-12-06 20:42:20,081 INFO L130 BoogieDeclarations]: Found specification of procedure release_firmware [2021-12-06 20:42:20,082 INFO L138 BoogieDeclarations]: Found implementation of procedure release_firmware [2021-12-06 20:42:20,082 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2021-12-06 20:42:20,082 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2021-12-06 20:42:20,082 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_irq [2021-12-06 20:42:20,082 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_irq [2021-12-06 20:42:20,082 INFO L130 BoogieDeclarations]: Found specification of procedure mgt_commit_list [2021-12-06 20:42:20,082 INFO L138 BoogieDeclarations]: Found implementation of procedure mgt_commit_list [2021-12-06 20:42:20,082 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reserve [2021-12-06 20:42:20,082 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reserve [2021-12-06 20:42:20,083 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock [2021-12-06 20:42:20,083 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock [2021-12-06 20:42:20,083 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2021-12-06 20:42:20,083 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2021-12-06 20:42:20,083 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2021-12-06 20:42:20,083 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2021-12-06 20:42:20,083 INFO L130 BoogieDeclarations]: Found specification of procedure islpci_mgmt_rx_fill [2021-12-06 20:42:20,083 INFO L138 BoogieDeclarations]: Found implementation of procedure islpci_mgmt_rx_fill [2021-12-06 20:42:20,083 INFO L130 BoogieDeclarations]: Found specification of procedure islpci_mgt_transaction [2021-12-06 20:42:20,084 INFO L138 BoogieDeclarations]: Found implementation of procedure islpci_mgt_transaction [2021-12-06 20:42:20,084 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-12-06 20:42:20,084 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-12-06 20:42:20,084 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlock [2021-12-06 20:42:20,084 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlock [2021-12-06 20:42:20,084 INFO L130 BoogieDeclarations]: Found specification of procedure channel_of_freq [2021-12-06 20:42:20,084 INFO L138 BoogieDeclarations]: Found implementation of procedure channel_of_freq [2021-12-06 20:42:20,084 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-06 20:42:20,084 INFO L130 BoogieDeclarations]: Found specification of procedure skb_pull [2021-12-06 20:42:20,085 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_pull [2021-12-06 20:42:20,085 INFO L130 BoogieDeclarations]: Found specification of procedure dev_alloc_skb [2021-12-06 20:42:20,085 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_alloc_skb [2021-12-06 20:42:20,085 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-12-06 20:42:20,085 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-12-06 20:42:20,085 INFO L130 BoogieDeclarations]: Found specification of procedure islpci_free_memory [2021-12-06 20:42:20,085 INFO L138 BoogieDeclarations]: Found implementation of procedure islpci_free_memory [2021-12-06 20:42:20,085 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_lock_of_islpci_acl [2021-12-06 20:42:20,086 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_lock_of_islpci_acl [2021-12-06 20:42:20,086 INFO L130 BoogieDeclarations]: Found specification of procedure mgt_commit [2021-12-06 20:42:20,086 INFO L138 BoogieDeclarations]: Found implementation of procedure mgt_commit [2021-12-06 20:42:20,086 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_device [2021-12-06 20:42:20,086 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_device [2021-12-06 20:42:20,086 INFO L130 BoogieDeclarations]: Found specification of procedure __swab32s [2021-12-06 20:42:20,086 INFO L138 BoogieDeclarations]: Found implementation of procedure __swab32s [2021-12-06 20:42:20,086 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab64 [2021-12-06 20:42:20,086 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab64 [2021-12-06 20:42:20,087 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2021-12-06 20:42:20,087 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2021-12-06 20:42:20,087 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2021-12-06 20:42:20,087 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2021-12-06 20:42:20,087 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_work [2021-12-06 20:42:20,087 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_work [2021-12-06 20:42:20,087 INFO L130 BoogieDeclarations]: Found specification of procedure prepare_to_wait [2021-12-06 20:42:20,087 INFO L138 BoogieDeclarations]: Found implementation of procedure prepare_to_wait [2021-12-06 20:42:20,087 INFO L130 BoogieDeclarations]: Found specification of procedure isl38xx_in_queue [2021-12-06 20:42:20,088 INFO L138 BoogieDeclarations]: Found implementation of procedure isl38xx_in_queue [2021-12-06 20:42:20,088 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_lock_of_islpci_acl [2021-12-06 20:42:20,088 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_lock_of_islpci_acl [2021-12-06 20:42:20,088 INFO L130 BoogieDeclarations]: Found specification of procedure msecs_to_jiffies [2021-12-06 20:42:20,088 INFO L138 BoogieDeclarations]: Found implementation of procedure msecs_to_jiffies [2021-12-06 20:42:20,088 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2021-12-06 20:42:20,088 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2021-12-06 20:42:20,088 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-06 20:42:20,088 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2021-12-06 20:42:20,089 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2021-12-06 20:42:20,089 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_netdev [2021-12-06 20:42:20,089 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_netdev [2021-12-06 20:42:20,089 INFO L130 BoogieDeclarations]: Found specification of procedure isl38xx_disable_interrupts [2021-12-06 20:42:20,089 INFO L138 BoogieDeclarations]: Found implementation of procedure isl38xx_disable_interrupts [2021-12-06 20:42:20,746 INFO L236 CfgBuilder]: Building ICFG [2021-12-06 20:42:20,748 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-06 20:42:21,026 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-12-06 20:42:26,132 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-12-06 20:42:26,305 INFO L277 CfgBuilder]: Performing block encoding [2021-12-06 20:42:26,325 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-06 20:42:26,325 INFO L301 CfgBuilder]: Removed 5 assume(true) statements. [2021-12-06 20:42:26,329 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 08:42:26 BoogieIcfgContainer [2021-12-06 20:42:26,329 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-06 20:42:26,331 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-06 20:42:26,331 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-06 20:42:26,333 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-06 20:42:26,333 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.12 08:42:15" (1/3) ... [2021-12-06 20:42:26,334 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@496347b2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 08:42:26, skipping insertion in model container [2021-12-06 20:42:26,334 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 08:42:19" (2/3) ... [2021-12-06 20:42:26,334 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@496347b2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 08:42:26, skipping insertion in model container [2021-12-06 20:42:26,334 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 08:42:26" (3/3) ... [2021-12-06 20:42:26,335 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-wireless-prism54-prism54.cil.i [2021-12-06 20:42:26,339 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-06 20:42:26,339 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2021-12-06 20:42:26,387 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-06 20:42:26,393 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-12-06 20:42:26,393 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-12-06 20:42:26,453 INFO L276 IsEmpty]: Start isEmpty. Operand has 2440 states, 1688 states have (on average 1.2938388625592416) internal successors, (2184), 1738 states have internal predecessors, (2184), 618 states have call successors, (618), 131 states have call predecessors, (618), 130 states have return successors, (612), 593 states have call predecessors, (612), 612 states have call successors, (612) [2021-12-06 20:42:26,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-12-06 20:42:26,465 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 20:42:26,466 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 20:42:26,466 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-12-06 20:42:26,470 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:42:26,471 INFO L85 PathProgramCache]: Analyzing trace with hash 38973541, now seen corresponding path program 1 times [2021-12-06 20:42:26,478 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 20:42:26,478 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [846874879] [2021-12-06 20:42:26,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:42:26,479 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 20:42:26,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:27,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-06 20:42:27,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:27,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 20:42:27,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:27,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-06 20:42:27,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:27,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 20:42:27,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:27,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-06 20:42:27,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:27,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 20:42:27,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:27,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-06 20:42:27,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:27,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 20:42:27,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:27,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-06 20:42:27,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:27,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 20:42:27,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:27,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-06 20:42:27,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:27,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 20:42:27,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:27,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2021-12-06 20:42:27,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:27,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2021-12-06 20:42:27,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:27,380 INFO L134 CoverageAnalysis]: Checked inductivity of 153 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 153 trivial. 0 not checked. [2021-12-06 20:42:27,381 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 20:42:27,381 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [846874879] [2021-12-06 20:42:27,381 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [846874879] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 20:42:27,381 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 20:42:27,382 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-06 20:42:27,383 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1719912313] [2021-12-06 20:42:27,383 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 20:42:27,386 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-06 20:42:27,386 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 20:42:27,405 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-06 20:42:27,405 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-06 20:42:27,410 INFO L87 Difference]: Start difference. First operand has 2440 states, 1688 states have (on average 1.2938388625592416) internal successors, (2184), 1738 states have internal predecessors, (2184), 618 states have call successors, (618), 131 states have call predecessors, (618), 130 states have return successors, (612), 593 states have call predecessors, (612), 612 states have call successors, (612) Second operand has 4 states, 4 states have (on average 8.0) internal successors, (32), 3 states have internal predecessors, (32), 3 states have call successors, (11), 3 states have call predecessors, (11), 1 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2021-12-06 20:42:31,364 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 20:42:31,364 INFO L93 Difference]: Finished difference Result 7349 states and 10685 transitions. [2021-12-06 20:42:31,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-06 20:42:31,366 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.0) internal successors, (32), 3 states have internal predecessors, (32), 3 states have call successors, (11), 3 states have call predecessors, (11), 1 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) Word has length 94 [2021-12-06 20:42:31,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 20:42:31,414 INFO L225 Difference]: With dead ends: 7349 [2021-12-06 20:42:31,415 INFO L226 Difference]: Without dead ends: 4910 [2021-12-06 20:42:31,440 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-06 20:42:31,443 INFO L933 BasicCegarLoop]: 3713 mSDtfsCounter, 4207 mSDsluCounter, 3981 mSDsCounter, 0 mSdLazyCounter, 2082 mSolverCounterSat, 1657 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4709 SdHoareTripleChecker+Valid, 7694 SdHoareTripleChecker+Invalid, 3739 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1657 IncrementalHoareTripleChecker+Valid, 2082 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2021-12-06 20:42:31,444 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4709 Valid, 7694 Invalid, 3739 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1657 Valid, 2082 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2021-12-06 20:42:31,466 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4910 states. [2021-12-06 20:42:31,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4910 to 4720. [2021-12-06 20:42:31,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4720 states, 3269 states have (on average 1.2633832976445396) internal successors, (4130), 3367 states have internal predecessors, (4130), 1191 states have call successors, (1191), 257 states have call predecessors, (1191), 256 states have return successors, (1187), 1149 states have call predecessors, (1187), 1187 states have call successors, (1187) [2021-12-06 20:42:31,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4720 states to 4720 states and 6508 transitions. [2021-12-06 20:42:31,718 INFO L78 Accepts]: Start accepts. Automaton has 4720 states and 6508 transitions. Word has length 94 [2021-12-06 20:42:31,719 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 20:42:31,719 INFO L470 AbstractCegarLoop]: Abstraction has 4720 states and 6508 transitions. [2021-12-06 20:42:31,719 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.0) internal successors, (32), 3 states have internal predecessors, (32), 3 states have call successors, (11), 3 states have call predecessors, (11), 1 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2021-12-06 20:42:31,719 INFO L276 IsEmpty]: Start isEmpty. Operand 4720 states and 6508 transitions. [2021-12-06 20:42:31,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2021-12-06 20:42:31,724 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 20:42:31,724 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 20:42:31,724 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-06 20:42:31,725 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock_tryErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-12-06 20:42:31,725 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:42:31,725 INFO L85 PathProgramCache]: Analyzing trace with hash -1061101067, now seen corresponding path program 1 times [2021-12-06 20:42:31,725 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 20:42:31,725 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1767859217] [2021-12-06 20:42:31,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:42:31,726 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 20:42:31,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:32,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-06 20:42:32,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:32,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 20:42:32,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:32,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-06 20:42:32,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:32,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 20:42:32,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:32,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-06 20:42:32,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:32,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 20:42:32,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:32,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-06 20:42:32,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:32,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 20:42:32,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:32,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-06 20:42:32,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:32,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 20:42:32,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:32,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-06 20:42:32,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:32,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 20:42:32,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:32,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2021-12-06 20:42:32,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:32,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2021-12-06 20:42:32,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:32,198 INFO L134 CoverageAnalysis]: Checked inductivity of 153 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 153 trivial. 0 not checked. [2021-12-06 20:42:32,198 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 20:42:32,198 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1767859217] [2021-12-06 20:42:32,198 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1767859217] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 20:42:32,198 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 20:42:32,198 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-06 20:42:32,199 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [471493938] [2021-12-06 20:42:32,199 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 20:42:32,200 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-06 20:42:32,200 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 20:42:32,200 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-06 20:42:32,201 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-06 20:42:32,201 INFO L87 Difference]: Start difference. First operand 4720 states and 6508 transitions. Second operand has 4 states, 4 states have (on average 8.5) internal successors, (34), 3 states have internal predecessors, (34), 3 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2021-12-06 20:42:36,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 20:42:36,312 INFO L93 Difference]: Finished difference Result 12034 states and 16690 transitions. [2021-12-06 20:42:36,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-06 20:42:36,312 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 3 states have internal predecessors, (34), 3 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) Word has length 95 [2021-12-06 20:42:36,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 20:42:36,359 INFO L225 Difference]: With dead ends: 12034 [2021-12-06 20:42:36,360 INFO L226 Difference]: Without dead ends: 7331 [2021-12-06 20:42:36,379 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-06 20:42:36,380 INFO L933 BasicCegarLoop]: 3690 mSDtfsCounter, 4189 mSDsluCounter, 4049 mSDsCounter, 0 mSdLazyCounter, 2075 mSolverCounterSat, 1690 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4693 SdHoareTripleChecker+Valid, 7739 SdHoareTripleChecker+Invalid, 3765 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1690 IncrementalHoareTripleChecker+Valid, 2075 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2021-12-06 20:42:36,380 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4693 Valid, 7739 Invalid, 3765 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1690 Valid, 2075 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2021-12-06 20:42:36,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7331 states. [2021-12-06 20:42:36,593 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7331 to 7033. [2021-12-06 20:42:36,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7033 states, 4872 states have (on average 1.2610837438423645) internal successors, (6144), 5021 states have internal predecessors, (6144), 1772 states have call successors, (1772), 386 states have call predecessors, (1772), 385 states have return successors, (1768), 1706 states have call predecessors, (1768), 1768 states have call successors, (1768) [2021-12-06 20:42:36,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7033 states to 7033 states and 9684 transitions. [2021-12-06 20:42:36,631 INFO L78 Accepts]: Start accepts. Automaton has 7033 states and 9684 transitions. Word has length 95 [2021-12-06 20:42:36,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 20:42:36,632 INFO L470 AbstractCegarLoop]: Abstraction has 7033 states and 9684 transitions. [2021-12-06 20:42:36,632 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 3 states have internal predecessors, (34), 3 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2021-12-06 20:42:36,632 INFO L276 IsEmpty]: Start isEmpty. Operand 7033 states and 9684 transitions. [2021-12-06 20:42:36,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2021-12-06 20:42:36,634 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 20:42:36,634 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 20:42:36,634 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-06 20:42:36,634 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-12-06 20:42:36,635 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:42:36,635 INFO L85 PathProgramCache]: Analyzing trace with hash -1782373060, now seen corresponding path program 1 times [2021-12-06 20:42:36,635 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 20:42:36,635 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1423126460] [2021-12-06 20:42:36,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:42:36,635 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 20:42:36,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:36,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-06 20:42:36,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:36,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 20:42:36,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:36,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-06 20:42:36,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:37,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 20:42:37,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:37,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-06 20:42:37,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:37,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 20:42:37,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:37,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-06 20:42:37,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:37,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 20:42:37,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:37,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-06 20:42:37,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:37,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 20:42:37,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:37,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-06 20:42:37,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:37,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 20:42:37,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:37,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2021-12-06 20:42:37,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:37,144 INFO L134 CoverageAnalysis]: Checked inductivity of 153 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 153 trivial. 0 not checked. [2021-12-06 20:42:37,144 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 20:42:37,144 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1423126460] [2021-12-06 20:42:37,144 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1423126460] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 20:42:37,145 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 20:42:37,145 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-06 20:42:37,145 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [592646936] [2021-12-06 20:42:37,145 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 20:42:37,145 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-06 20:42:37,146 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 20:42:37,146 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-06 20:42:37,146 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-06 20:42:37,147 INFO L87 Difference]: Start difference. First operand 7033 states and 9684 transitions. Second operand has 4 states, 4 states have (on average 9.0) internal successors, (36), 3 states have internal predecessors, (36), 3 states have call successors, (11), 3 states have call predecessors, (11), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2021-12-06 20:42:40,195 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 20:42:40,195 INFO L93 Difference]: Finished difference Result 17864 states and 24693 transitions. [2021-12-06 20:42:40,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-06 20:42:40,196 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.0) internal successors, (36), 3 states have internal predecessors, (36), 3 states have call successors, (11), 3 states have call predecessors, (11), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 97 [2021-12-06 20:42:40,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 20:42:40,252 INFO L225 Difference]: With dead ends: 17864 [2021-12-06 20:42:40,252 INFO L226 Difference]: Without dead ends: 10848 [2021-12-06 20:42:40,274 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-06 20:42:40,275 INFO L933 BasicCegarLoop]: 3723 mSDtfsCounter, 3569 mSDsluCounter, 4007 mSDsCounter, 0 mSdLazyCounter, 2048 mSolverCounterSat, 1482 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3969 SdHoareTripleChecker+Valid, 7730 SdHoareTripleChecker+Invalid, 3530 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1482 IncrementalHoareTripleChecker+Valid, 2048 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2021-12-06 20:42:40,275 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3969 Valid, 7730 Invalid, 3530 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1482 Valid, 2048 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2021-12-06 20:42:40,286 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10848 states. [2021-12-06 20:42:40,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10848 to 10370. [2021-12-06 20:42:40,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10370 states, 7221 states have (on average 1.2617366015787288) internal successors, (9111), 7457 states have internal predecessors, (9111), 2542 states have call successors, (2542), 606 states have call predecessors, (2542), 603 states have return successors, (2538), 2432 states have call predecessors, (2538), 2538 states have call successors, (2538) [2021-12-06 20:42:40,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10370 states to 10370 states and 14191 transitions. [2021-12-06 20:42:40,605 INFO L78 Accepts]: Start accepts. Automaton has 10370 states and 14191 transitions. Word has length 97 [2021-12-06 20:42:40,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 20:42:40,606 INFO L470 AbstractCegarLoop]: Abstraction has 10370 states and 14191 transitions. [2021-12-06 20:42:40,606 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.0) internal successors, (36), 3 states have internal predecessors, (36), 3 states have call successors, (11), 3 states have call predecessors, (11), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2021-12-06 20:42:40,606 INFO L276 IsEmpty]: Start isEmpty. Operand 10370 states and 14191 transitions. [2021-12-06 20:42:40,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2021-12-06 20:42:40,607 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 20:42:40,607 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 20:42:40,608 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-06 20:42:40,608 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-12-06 20:42:40,608 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:42:40,608 INFO L85 PathProgramCache]: Analyzing trace with hash -218919595, now seen corresponding path program 1 times [2021-12-06 20:42:40,608 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 20:42:40,608 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [469825749] [2021-12-06 20:42:40,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:42:40,608 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 20:42:40,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:40,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-06 20:42:40,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:40,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 20:42:40,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:40,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-06 20:42:40,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:40,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 20:42:40,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:40,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-06 20:42:40,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:40,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 20:42:40,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:40,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-06 20:42:40,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:40,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 20:42:40,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:40,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-06 20:42:41,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:41,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 20:42:41,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:41,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-06 20:42:41,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:41,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 20:42:41,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:41,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2021-12-06 20:42:41,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:41,060 INFO L134 CoverageAnalysis]: Checked inductivity of 153 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 153 trivial. 0 not checked. [2021-12-06 20:42:41,061 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 20:42:41,061 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [469825749] [2021-12-06 20:42:41,061 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [469825749] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 20:42:41,061 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 20:42:41,061 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-06 20:42:41,061 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1428812435] [2021-12-06 20:42:41,061 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 20:42:41,062 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-06 20:42:41,062 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 20:42:41,063 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-06 20:42:41,063 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-06 20:42:41,063 INFO L87 Difference]: Start difference. First operand 10370 states and 14191 transitions. Second operand has 4 states, 4 states have (on average 10.5) internal successors, (42), 3 states have internal predecessors, (42), 3 states have call successors, (11), 3 states have call predecessors, (11), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2021-12-06 20:42:44,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 20:42:44,232 INFO L93 Difference]: Finished difference Result 26053 states and 35752 transitions. [2021-12-06 20:42:44,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-06 20:42:44,233 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 3 states have internal predecessors, (42), 3 states have call successors, (11), 3 states have call predecessors, (11), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 103 [2021-12-06 20:42:44,233 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 20:42:44,307 INFO L225 Difference]: With dead ends: 26053 [2021-12-06 20:42:44,308 INFO L226 Difference]: Without dead ends: 15700 [2021-12-06 20:42:44,337 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-06 20:42:44,338 INFO L933 BasicCegarLoop]: 3654 mSDtfsCounter, 4038 mSDsluCounter, 3989 mSDsCounter, 0 mSdLazyCounter, 2028 mSolverCounterSat, 1655 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4514 SdHoareTripleChecker+Valid, 7643 SdHoareTripleChecker+Invalid, 3683 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1655 IncrementalHoareTripleChecker+Valid, 2028 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2021-12-06 20:42:44,338 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4514 Valid, 7643 Invalid, 3683 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1655 Valid, 2028 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2021-12-06 20:42:44,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15700 states. [2021-12-06 20:42:44,705 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15700 to 15019. [2021-12-06 20:42:44,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15019 states, 10497 states have (on average 1.256740020958369) internal successors, (13192), 10829 states have internal predecessors, (13192), 3621 states have call successors, (3621), 904 states have call predecessors, (3621), 897 states have return successors, (3623), 3459 states have call predecessors, (3623), 3617 states have call successors, (3623) [2021-12-06 20:42:44,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15019 states to 15019 states and 20436 transitions. [2021-12-06 20:42:44,775 INFO L78 Accepts]: Start accepts. Automaton has 15019 states and 20436 transitions. Word has length 103 [2021-12-06 20:42:44,775 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 20:42:44,775 INFO L470 AbstractCegarLoop]: Abstraction has 15019 states and 20436 transitions. [2021-12-06 20:42:44,776 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 3 states have internal predecessors, (42), 3 states have call successors, (11), 3 states have call predecessors, (11), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2021-12-06 20:42:44,776 INFO L276 IsEmpty]: Start isEmpty. Operand 15019 states and 20436 transitions. [2021-12-06 20:42:44,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2021-12-06 20:42:44,780 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 20:42:44,780 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 6, 6, 6, 6, 6, 6, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 20:42:44,780 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-06 20:42:44,781 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-12-06 20:42:44,781 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:42:44,781 INFO L85 PathProgramCache]: Analyzing trace with hash 346365365, now seen corresponding path program 1 times [2021-12-06 20:42:44,781 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 20:42:44,781 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1801921021] [2021-12-06 20:42:44,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:42:44,782 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 20:42:44,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:45,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-06 20:42:45,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:45,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 20:42:45,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:45,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-06 20:42:45,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:45,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 20:42:45,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:45,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-06 20:42:45,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:45,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 20:42:45,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:45,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-06 20:42:45,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:45,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 20:42:45,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:45,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-06 20:42:45,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:45,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 20:42:45,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:45,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-06 20:42:45,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:45,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 20:42:45,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:45,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2021-12-06 20:42:45,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:45,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-12-06 20:42:45,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:45,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2021-12-06 20:42:45,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:45,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-06 20:42:45,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:45,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-12-06 20:42:45,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:45,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 20:42:45,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:45,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2021-12-06 20:42:45,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:45,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2021-12-06 20:42:45,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:45,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2021-12-06 20:42:45,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:45,281 INFO L134 CoverageAnalysis]: Checked inductivity of 259 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 249 trivial. 0 not checked. [2021-12-06 20:42:45,281 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 20:42:45,281 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1801921021] [2021-12-06 20:42:45,281 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1801921021] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 20:42:45,281 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 20:42:45,281 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-06 20:42:45,282 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1951363721] [2021-12-06 20:42:45,282 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 20:42:45,282 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-06 20:42:45,282 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 20:42:45,283 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-06 20:42:45,283 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-06 20:42:45,283 INFO L87 Difference]: Start difference. First operand 15019 states and 20436 transitions. Second operand has 4 states, 4 states have (on average 18.75) internal successors, (75), 3 states have internal predecessors, (75), 3 states have call successors, (18), 3 states have call predecessors, (18), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2021-12-06 20:42:48,853 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 20:42:48,853 INFO L93 Difference]: Finished difference Result 44408 states and 60926 transitions. [2021-12-06 20:42:48,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-06 20:42:48,853 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.75) internal successors, (75), 3 states have internal predecessors, (75), 3 states have call successors, (18), 3 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 166 [2021-12-06 20:42:48,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 20:42:48,950 INFO L225 Difference]: With dead ends: 44408 [2021-12-06 20:42:48,951 INFO L226 Difference]: Without dead ends: 30005 [2021-12-06 20:42:48,989 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-06 20:42:48,990 INFO L933 BasicCegarLoop]: 4878 mSDtfsCounter, 3865 mSDsluCounter, 4724 mSDsCounter, 0 mSdLazyCounter, 2098 mSolverCounterSat, 1398 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4360 SdHoareTripleChecker+Valid, 9602 SdHoareTripleChecker+Invalid, 3496 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1398 IncrementalHoareTripleChecker+Valid, 2098 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2021-12-06 20:42:48,991 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4360 Valid, 9602 Invalid, 3496 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1398 Valid, 2098 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2021-12-06 20:42:49,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30005 states. [2021-12-06 20:42:49,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30005 to 28748. [2021-12-06 20:42:49,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28748 states, 20060 states have (on average 1.256779661016949) internal successors, (25211), 20676 states have internal predecessors, (25211), 6960 states have call successors, (6960), 1733 states have call predecessors, (6960), 1724 states have return successors, (6968), 6678 states have call predecessors, (6968), 6956 states have call successors, (6968) [2021-12-06 20:42:49,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28748 states to 28748 states and 39139 transitions. [2021-12-06 20:42:49,891 INFO L78 Accepts]: Start accepts. Automaton has 28748 states and 39139 transitions. Word has length 166 [2021-12-06 20:42:49,891 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 20:42:49,892 INFO L470 AbstractCegarLoop]: Abstraction has 28748 states and 39139 transitions. [2021-12-06 20:42:49,892 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.75) internal successors, (75), 3 states have internal predecessors, (75), 3 states have call successors, (18), 3 states have call predecessors, (18), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2021-12-06 20:42:49,892 INFO L276 IsEmpty]: Start isEmpty. Operand 28748 states and 39139 transitions. [2021-12-06 20:42:49,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2021-12-06 20:42:49,895 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 20:42:49,895 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 6, 6, 6, 6, 6, 6, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 20:42:49,895 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-06 20:42:49,895 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-12-06 20:42:49,895 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:42:49,896 INFO L85 PathProgramCache]: Analyzing trace with hash 486913975, now seen corresponding path program 1 times [2021-12-06 20:42:49,896 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 20:42:49,896 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [603896518] [2021-12-06 20:42:49,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:42:49,896 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 20:42:50,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:50,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-06 20:42:50,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:50,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 20:42:50,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:50,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-06 20:42:50,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:50,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 20:42:50,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:50,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-06 20:42:50,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:50,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 20:42:50,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:50,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-06 20:42:50,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:50,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 20:42:50,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:50,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-06 20:42:50,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:50,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 20:42:50,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:50,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-06 20:42:50,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:50,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 20:42:50,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:50,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2021-12-06 20:42:50,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:50,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-12-06 20:42:50,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:50,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2021-12-06 20:42:50,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:50,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-06 20:42:50,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:50,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-12-06 20:42:50,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:50,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 20:42:50,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:50,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2021-12-06 20:42:50,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:50,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2021-12-06 20:42:50,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:50,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2021-12-06 20:42:50,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:50,418 INFO L134 CoverageAnalysis]: Checked inductivity of 259 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 259 trivial. 0 not checked. [2021-12-06 20:42:50,418 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 20:42:50,418 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [603896518] [2021-12-06 20:42:50,418 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [603896518] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 20:42:50,418 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 20:42:50,419 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-06 20:42:50,419 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2093023181] [2021-12-06 20:42:50,419 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 20:42:50,419 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-06 20:42:50,419 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 20:42:50,420 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-06 20:42:50,420 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-06 20:42:50,420 INFO L87 Difference]: Start difference. First operand 28748 states and 39139 transitions. Second operand has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 4 states have internal predecessors, (67), 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) [2021-12-06 20:42:53,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 20:42:53,503 INFO L93 Difference]: Finished difference Result 30005 states and 41249 transitions. [2021-12-06 20:42:53,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-06 20:42:53,504 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 4 states have internal predecessors, (67), 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 166 [2021-12-06 20:42:53,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 20:42:53,589 INFO L225 Difference]: With dead ends: 30005 [2021-12-06 20:42:53,589 INFO L226 Difference]: Without dead ends: 30003 [2021-12-06 20:42:53,597 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-12-06 20:42:53,598 INFO L933 BasicCegarLoop]: 3200 mSDtfsCounter, 3485 mSDsluCounter, 6544 mSDsCounter, 0 mSdLazyCounter, 2311 mSolverCounterSat, 1064 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3864 SdHoareTripleChecker+Valid, 9744 SdHoareTripleChecker+Invalid, 3375 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1064 IncrementalHoareTripleChecker+Valid, 2311 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2021-12-06 20:42:53,598 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3864 Valid, 9744 Invalid, 3375 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1064 Valid, 2311 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2021-12-06 20:42:53,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30003 states. [2021-12-06 20:42:54,339 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30003 to 28752. [2021-12-06 20:42:54,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28752 states, 20063 states have (on average 1.2567412650152021) internal successors, (25214), 20679 states have internal predecessors, (25214), 6960 states have call successors, (6960), 1734 states have call predecessors, (6960), 1725 states have return successors, (6968), 6678 states have call predecessors, (6968), 6956 states have call successors, (6968) [2021-12-06 20:42:54,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28752 states to 28752 states and 39142 transitions. [2021-12-06 20:42:54,452 INFO L78 Accepts]: Start accepts. Automaton has 28752 states and 39142 transitions. Word has length 166 [2021-12-06 20:42:54,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 20:42:54,452 INFO L470 AbstractCegarLoop]: Abstraction has 28752 states and 39142 transitions. [2021-12-06 20:42:54,452 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 4 states have internal predecessors, (67), 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) [2021-12-06 20:42:54,453 INFO L276 IsEmpty]: Start isEmpty. Operand 28752 states and 39142 transitions. [2021-12-06 20:42:54,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2021-12-06 20:42:54,456 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 20:42:54,456 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 6, 6, 6, 6, 6, 6, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 20:42:54,456 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-12-06 20:42:54,456 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-12-06 20:42:54,456 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:42:54,457 INFO L85 PathProgramCache]: Analyzing trace with hash -712533819, now seen corresponding path program 1 times [2021-12-06 20:42:54,457 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 20:42:54,457 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1532958781] [2021-12-06 20:42:54,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:42:54,457 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 20:42:54,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:54,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-06 20:42:54,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:54,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 20:42:54,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:54,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-06 20:42:54,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:54,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 20:42:54,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:54,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-06 20:42:54,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:54,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 20:42:54,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:54,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-06 20:42:54,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:54,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 20:42:54,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:54,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-06 20:42:54,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:54,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 20:42:54,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:54,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-06 20:42:54,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:54,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 20:42:54,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:54,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2021-12-06 20:42:54,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:54,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-12-06 20:42:54,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:54,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2021-12-06 20:42:54,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:54,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-06 20:42:54,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:54,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-12-06 20:42:54,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:54,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 20:42:54,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:54,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2021-12-06 20:42:54,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:55,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2021-12-06 20:42:55,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:55,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2021-12-06 20:42:55,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:55,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2021-12-06 20:42:55,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:55,032 INFO L134 CoverageAnalysis]: Checked inductivity of 261 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 259 trivial. 0 not checked. [2021-12-06 20:42:55,032 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 20:42:55,032 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1532958781] [2021-12-06 20:42:55,032 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1532958781] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 20:42:55,032 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 20:42:55,032 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-06 20:42:55,032 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [801689387] [2021-12-06 20:42:55,032 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 20:42:55,033 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-06 20:42:55,033 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 20:42:55,033 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-06 20:42:55,033 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-06 20:42:55,033 INFO L87 Difference]: Start difference. First operand 28752 states and 39142 transitions. Second operand has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 4 states have internal predecessors, (70), 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) [2021-12-06 20:42:58,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 20:42:58,007 INFO L93 Difference]: Finished difference Result 30009 states and 41252 transitions. [2021-12-06 20:42:58,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-06 20:42:58,008 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 4 states have internal predecessors, (70), 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 171 [2021-12-06 20:42:58,008 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 20:42:58,093 INFO L225 Difference]: With dead ends: 30009 [2021-12-06 20:42:58,093 INFO L226 Difference]: Without dead ends: 30007 [2021-12-06 20:42:58,106 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-12-06 20:42:58,106 INFO L933 BasicCegarLoop]: 3189 mSDtfsCounter, 3488 mSDsluCounter, 6516 mSDsCounter, 0 mSdLazyCounter, 2311 mSolverCounterSat, 1069 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3867 SdHoareTripleChecker+Valid, 9705 SdHoareTripleChecker+Invalid, 3380 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1069 IncrementalHoareTripleChecker+Valid, 2311 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2021-12-06 20:42:58,107 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3867 Valid, 9705 Invalid, 3380 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1069 Valid, 2311 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2021-12-06 20:42:58,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30007 states. [2021-12-06 20:42:58,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30007 to 28756. [2021-12-06 20:42:58,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28756 states, 20066 states have (on average 1.2567028804943685) internal successors, (25217), 20682 states have internal predecessors, (25217), 6960 states have call successors, (6960), 1735 states have call predecessors, (6960), 1726 states have return successors, (6968), 6678 states have call predecessors, (6968), 6956 states have call successors, (6968) [2021-12-06 20:42:58,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28756 states to 28756 states and 39145 transitions. [2021-12-06 20:42:58,962 INFO L78 Accepts]: Start accepts. Automaton has 28756 states and 39145 transitions. Word has length 171 [2021-12-06 20:42:58,962 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 20:42:58,962 INFO L470 AbstractCegarLoop]: Abstraction has 28756 states and 39145 transitions. [2021-12-06 20:42:58,962 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 4 states have internal predecessors, (70), 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) [2021-12-06 20:42:58,963 INFO L276 IsEmpty]: Start isEmpty. Operand 28756 states and 39145 transitions. [2021-12-06 20:42:58,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2021-12-06 20:42:58,967 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 20:42:58,967 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 6, 6, 6, 6, 6, 6, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 20:42:58,967 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-12-06 20:42:58,968 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-12-06 20:42:58,968 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:42:58,968 INFO L85 PathProgramCache]: Analyzing trace with hash 1342916663, now seen corresponding path program 1 times [2021-12-06 20:42:58,968 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 20:42:58,968 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1677413396] [2021-12-06 20:42:58,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:42:58,968 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 20:42:59,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:59,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-06 20:42:59,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:59,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 20:42:59,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:59,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-06 20:42:59,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:59,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 20:42:59,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:59,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-06 20:42:59,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:59,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 20:42:59,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:59,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-06 20:42:59,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:59,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 20:42:59,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:59,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-06 20:42:59,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:59,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 20:42:59,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:59,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-06 20:42:59,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:59,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 20:42:59,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:59,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2021-12-06 20:42:59,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:59,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-12-06 20:42:59,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:59,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2021-12-06 20:42:59,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:59,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-06 20:42:59,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:59,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-12-06 20:42:59,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:59,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 20:42:59,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:59,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2021-12-06 20:42:59,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:59,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2021-12-06 20:42:59,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:59,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2021-12-06 20:42:59,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:59,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2021-12-06 20:42:59,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:59,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2021-12-06 20:42:59,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:42:59,513 INFO L134 CoverageAnalysis]: Checked inductivity of 267 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 263 trivial. 0 not checked. [2021-12-06 20:42:59,514 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 20:42:59,514 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1677413396] [2021-12-06 20:42:59,514 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1677413396] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 20:42:59,514 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 20:42:59,514 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-06 20:42:59,514 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [89050903] [2021-12-06 20:42:59,514 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 20:42:59,515 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-06 20:42:59,515 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 20:42:59,515 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-06 20:42:59,515 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-06 20:42:59,516 INFO L87 Difference]: Start difference. First operand 28756 states and 39145 transitions. Second operand has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 4 states have internal predecessors, (70), 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) [2021-12-06 20:43:04,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 20:43:04,713 INFO L93 Difference]: Finished difference Result 58473 states and 80715 transitions. [2021-12-06 20:43:04,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-06 20:43:04,713 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 4 states have internal predecessors, (70), 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 176 [2021-12-06 20:43:04,713 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 20:43:04,914 INFO L225 Difference]: With dead ends: 58473 [2021-12-06 20:43:04,914 INFO L226 Difference]: Without dead ends: 58471 [2021-12-06 20:43:04,930 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-12-06 20:43:04,931 INFO L933 BasicCegarLoop]: 3894 mSDtfsCounter, 4126 mSDsluCounter, 10480 mSDsCounter, 0 mSdLazyCounter, 4020 mSolverCounterSat, 1646 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4618 SdHoareTripleChecker+Valid, 14374 SdHoareTripleChecker+Invalid, 5666 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1646 IncrementalHoareTripleChecker+Valid, 4020 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2021-12-06 20:43:04,931 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4618 Valid, 14374 Invalid, 5666 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1646 Valid, 4020 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2021-12-06 20:43:04,968 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58471 states. [2021-12-06 20:43:06,458 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58471 to 56280. [2021-12-06 20:43:06,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56280 states, 39278 states have (on average 1.2582107031926268) internal successors, (49420), 40566 states have internal predecessors, (49420), 13640 states have call successors, (13640), 3384 states have call predecessors, (13640), 3358 states have return successors, (14012), 12985 states have call predecessors, (14012), 13632 states have call successors, (14012) [2021-12-06 20:43:06,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56280 states to 56280 states and 77072 transitions. [2021-12-06 20:43:06,679 INFO L78 Accepts]: Start accepts. Automaton has 56280 states and 77072 transitions. Word has length 176 [2021-12-06 20:43:06,680 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 20:43:06,680 INFO L470 AbstractCegarLoop]: Abstraction has 56280 states and 77072 transitions. [2021-12-06 20:43:06,680 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 4 states have internal predecessors, (70), 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) [2021-12-06 20:43:06,680 INFO L276 IsEmpty]: Start isEmpty. Operand 56280 states and 77072 transitions. [2021-12-06 20:43:06,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2021-12-06 20:43:06,685 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 20:43:06,685 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 6, 6, 6, 6, 6, 6, 4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 20:43:06,685 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-12-06 20:43:06,685 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-12-06 20:43:06,685 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:43:06,685 INFO L85 PathProgramCache]: Analyzing trace with hash 226964325, now seen corresponding path program 1 times [2021-12-06 20:43:06,685 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 20:43:06,686 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [108182559] [2021-12-06 20:43:06,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:43:06,686 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 20:43:06,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:43:06,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-06 20:43:06,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:43:06,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 20:43:06,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:43:06,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-06 20:43:06,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:43:06,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 20:43:06,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:43:06,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-06 20:43:06,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:43:06,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 20:43:06,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:43:06,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-06 20:43:07,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:43:07,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 20:43:07,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:43:07,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-06 20:43:07,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:43:07,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 20:43:07,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:43:07,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-06 20:43:07,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:43:07,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 20:43:07,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:43:07,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2021-12-06 20:43:07,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:43:07,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-12-06 20:43:07,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:43:07,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2021-12-06 20:43:07,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:43:07,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-06 20:43:07,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:43:07,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2021-12-06 20:43:07,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:43:07,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2021-12-06 20:43:07,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:43:07,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 20:43:07,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:43:07,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2021-12-06 20:43:07,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:43:07,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2021-12-06 20:43:07,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:43:07,104 INFO L134 CoverageAnalysis]: Checked inductivity of 252 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 249 trivial. 0 not checked. [2021-12-06 20:43:07,104 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 20:43:07,104 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [108182559] [2021-12-06 20:43:07,104 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [108182559] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 20:43:07,104 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 20:43:07,104 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-06 20:43:07,105 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2005542968] [2021-12-06 20:43:07,105 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 20:43:07,105 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-06 20:43:07,105 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 20:43:07,105 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-06 20:43:07,105 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-06 20:43:07,106 INFO L87 Difference]: Start difference. First operand 56280 states and 77072 transitions. Second operand has 4 states, 4 states have (on average 21.25) internal successors, (85), 3 states have internal predecessors, (85), 3 states have call successors, (19), 3 states have call predecessors, (19), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2021-12-06 20:43:12,188 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 20:43:12,189 INFO L93 Difference]: Finished difference Result 135243 states and 185927 transitions. [2021-12-06 20:43:12,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-06 20:43:12,189 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 21.25) internal successors, (85), 3 states have internal predecessors, (85), 3 states have call successors, (19), 3 states have call predecessors, (19), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 177 [2021-12-06 20:43:12,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 20:43:12,449 INFO L225 Difference]: With dead ends: 135243 [2021-12-06 20:43:12,449 INFO L226 Difference]: Without dead ends: 79579 [2021-12-06 20:43:12,591 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-06 20:43:12,591 INFO L933 BasicCegarLoop]: 5597 mSDtfsCounter, 2998 mSDsluCounter, 4902 mSDsCounter, 0 mSdLazyCounter, 2131 mSolverCounterSat, 1075 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3402 SdHoareTripleChecker+Valid, 10499 SdHoareTripleChecker+Invalid, 3206 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1075 IncrementalHoareTripleChecker+Valid, 2131 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2021-12-06 20:43:12,592 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3402 Valid, 10499 Invalid, 3206 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1075 Valid, 2131 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2021-12-06 20:43:12,655 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79579 states. [2021-12-06 20:43:14,614 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79579 to 76472. [2021-12-06 20:43:14,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76472 states, 53516 states have (on average 1.2567456461618955) internal successors, (67256), 55256 states have internal predecessors, (67256), 18288 states have call successors, (18288), 4694 states have call predecessors, (18288), 4664 states have return successors, (18776), 17429 states have call predecessors, (18776), 18280 states have call successors, (18776) [2021-12-06 20:43:14,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76472 states to 76472 states and 104320 transitions. [2021-12-06 20:43:14,916 INFO L78 Accepts]: Start accepts. Automaton has 76472 states and 104320 transitions. Word has length 177 [2021-12-06 20:43:14,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 20:43:14,917 INFO L470 AbstractCegarLoop]: Abstraction has 76472 states and 104320 transitions. [2021-12-06 20:43:14,917 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.25) internal successors, (85), 3 states have internal predecessors, (85), 3 states have call successors, (19), 3 states have call predecessors, (19), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2021-12-06 20:43:14,917 INFO L276 IsEmpty]: Start isEmpty. Operand 76472 states and 104320 transitions. [2021-12-06 20:43:14,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2021-12-06 20:43:14,922 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 20:43:14,922 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 6, 6, 6, 6, 6, 6, 5, 5, 5, 4, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 20:43:14,922 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-12-06 20:43:14,922 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-12-06 20:43:14,922 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:43:14,922 INFO L85 PathProgramCache]: Analyzing trace with hash 1673172865, now seen corresponding path program 1 times [2021-12-06 20:43:14,923 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 20:43:14,923 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2127312424] [2021-12-06 20:43:14,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:43:14,923 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 20:43:15,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:43:15,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-06 20:43:15,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:43:15,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 20:43:15,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:43:15,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-06 20:43:15,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:43:15,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 20:43:15,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:43:15,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-06 20:43:15,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:43:15,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 20:43:15,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:43:15,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-06 20:43:15,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:43:15,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 20:43:15,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:43:15,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-06 20:43:15,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:43:15,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 20:43:15,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:43:15,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-06 20:43:15,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:43:15,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 20:43:15,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:43:15,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2021-12-06 20:43:15,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:43:15,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-12-06 20:43:15,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:43:15,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2021-12-06 20:43:15,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:43:15,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-06 20:43:15,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:43:15,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-12-06 20:43:15,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:43:15,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 20:43:15,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:43:15,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2021-12-06 20:43:15,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:43:15,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2021-12-06 20:43:15,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:43:15,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2021-12-06 20:43:15,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:43:15,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2021-12-06 20:43:15,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:43:15,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 20:43:15,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:43:15,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2021-12-06 20:43:15,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:43:15,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2021-12-06 20:43:15,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:43:15,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2021-12-06 20:43:15,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:43:15,412 INFO L134 CoverageAnalysis]: Checked inductivity of 288 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 277 trivial. 0 not checked. [2021-12-06 20:43:15,412 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 20:43:15,412 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2127312424] [2021-12-06 20:43:15,413 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2127312424] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 20:43:15,413 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 20:43:15,413 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-06 20:43:15,413 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1387198292] [2021-12-06 20:43:15,413 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 20:43:15,413 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-06 20:43:15,413 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 20:43:15,414 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-06 20:43:15,414 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-06 20:43:15,414 INFO L87 Difference]: Start difference. First operand 76472 states and 104320 transitions. Second operand has 5 states, 5 states have (on average 16.4) internal successors, (82), 3 states have internal predecessors, (82), 3 states have call successors, (23), 4 states have call predecessors, (23), 1 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) [2021-12-06 20:43:26,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 20:43:26,664 INFO L93 Difference]: Finished difference Result 193815 states and 265835 transitions. [2021-12-06 20:43:26,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-06 20:43:26,665 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 3 states have internal predecessors, (82), 3 states have call successors, (23), 4 states have call predecessors, (23), 1 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) Word has length 192 [2021-12-06 20:43:26,665 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 20:43:27,049 INFO L225 Difference]: With dead ends: 193815 [2021-12-06 20:43:27,049 INFO L226 Difference]: Without dead ends: 117959 [2021-12-06 20:43:27,228 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-12-06 20:43:27,229 INFO L933 BasicCegarLoop]: 5798 mSDtfsCounter, 4404 mSDsluCounter, 4565 mSDsCounter, 0 mSdLazyCounter, 5444 mSolverCounterSat, 2896 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4884 SdHoareTripleChecker+Valid, 10363 SdHoareTripleChecker+Invalid, 8340 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2896 IncrementalHoareTripleChecker+Valid, 5444 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.5s IncrementalHoareTripleChecker+Time [2021-12-06 20:43:27,229 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4884 Valid, 10363 Invalid, 8340 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2896 Valid, 5444 Invalid, 0 Unknown, 0 Unchecked, 7.5s Time] [2021-12-06 20:43:27,315 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117959 states. [2021-12-06 20:43:31,185 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117959 to 113440. [2021-12-06 20:43:31,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 113440 states, 79362 states have (on average 1.256369547138429) internal successors, (99708), 81910 states have internal predecessors, (99708), 27142 states have call successors, (27142), 6968 states have call predecessors, (27142), 6932 states have return successors, (27878), 25919 states have call predecessors, (27878), 27134 states have call successors, (27878) [2021-12-06 20:43:31,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113440 states to 113440 states and 154728 transitions. [2021-12-06 20:43:31,673 INFO L78 Accepts]: Start accepts. Automaton has 113440 states and 154728 transitions. Word has length 192 [2021-12-06 20:43:31,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 20:43:31,674 INFO L470 AbstractCegarLoop]: Abstraction has 113440 states and 154728 transitions. [2021-12-06 20:43:31,674 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 3 states have internal predecessors, (82), 3 states have call successors, (23), 4 states have call predecessors, (23), 1 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) [2021-12-06 20:43:31,674 INFO L276 IsEmpty]: Start isEmpty. Operand 113440 states and 154728 transitions. [2021-12-06 20:43:31,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2021-12-06 20:43:31,677 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 20:43:31,678 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 20:43:31,678 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-12-06 20:43:31,678 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-12-06 20:43:31,678 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:43:31,678 INFO L85 PathProgramCache]: Analyzing trace with hash 1377994693, now seen corresponding path program 1 times [2021-12-06 20:43:31,678 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 20:43:31,678 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [52896224] [2021-12-06 20:43:31,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:43:31,679 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 20:43:31,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:43:31,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-06 20:43:31,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:43:31,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 20:43:31,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:43:31,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-06 20:43:31,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:43:31,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 20:43:31,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:43:31,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-06 20:43:31,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:43:31,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 20:43:31,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:43:31,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-06 20:43:31,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:43:31,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 20:43:31,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:43:31,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-06 20:43:31,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:43:32,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 20:43:32,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:43:32,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-06 20:43:32,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:43:32,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 20:43:32,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:43:32,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2021-12-06 20:43:32,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:43:32,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-12-06 20:43:32,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:43:32,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2021-12-06 20:43:32,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:43:32,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-06 20:43:32,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:43:32,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-12-06 20:43:32,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:43:32,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 20:43:32,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:43:32,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2021-12-06 20:43:32,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:43:32,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2021-12-06 20:43:32,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:43:32,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2021-12-06 20:43:32,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:43:32,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2021-12-06 20:43:32,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:43:32,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2021-12-06 20:43:32,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:43:32,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2021-12-06 20:43:32,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:43:32,119 INFO L134 CoverageAnalysis]: Checked inductivity of 277 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 271 trivial. 0 not checked. [2021-12-06 20:43:32,119 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 20:43:32,119 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [52896224] [2021-12-06 20:43:32,119 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [52896224] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 20:43:32,119 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 20:43:32,119 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-06 20:43:32,119 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [698284333] [2021-12-06 20:43:32,119 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 20:43:32,120 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-06 20:43:32,120 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 20:43:32,120 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-06 20:43:32,120 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-06 20:43:32,120 INFO L87 Difference]: Start difference. First operand 113440 states and 154728 transitions. Second operand has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 4 states have internal predecessors, (70), 2 states have call successors, (20), 4 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2021-12-06 20:43:42,991 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 20:43:42,991 INFO L93 Difference]: Finished difference Result 235081 states and 326957 transitions. [2021-12-06 20:43:42,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-06 20:43:42,992 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 4 states have internal predecessors, (70), 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 181 [2021-12-06 20:43:42,992 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 20:43:43,813 INFO L225 Difference]: With dead ends: 235081 [2021-12-06 20:43:43,813 INFO L226 Difference]: Without dead ends: 235079 [2021-12-06 20:43:43,902 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-12-06 20:43:43,903 INFO L933 BasicCegarLoop]: 3885 mSDtfsCounter, 4252 mSDsluCounter, 10680 mSDsCounter, 0 mSdLazyCounter, 3959 mSolverCounterSat, 1677 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4749 SdHoareTripleChecker+Valid, 14565 SdHoareTripleChecker+Invalid, 5636 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1677 IncrementalHoareTripleChecker+Valid, 3959 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2021-12-06 20:43:43,903 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4749 Valid, 14565 Invalid, 5636 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1677 Valid, 3959 Invalid, 0 Unknown, 0 Unchecked, 4.5s Time] [2021-12-06 20:43:44,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 235079 states. [2021-12-06 20:43:52,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 235079 to 226216. [2021-12-06 20:43:52,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 226216 states, 158183 states have (on average 1.2566521054727753) internal successors, (198781), 163363 states have internal predecessors, (198781), 54156 states have call successors, (54156), 13897 states have call predecessors, (54156), 13873 states have return successors, (59396), 51663 states have call predecessors, (59396), 54140 states have call successors, (59396) [2021-12-06 20:43:53,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226216 states to 226216 states and 312333 transitions. [2021-12-06 20:43:53,515 INFO L78 Accepts]: Start accepts. Automaton has 226216 states and 312333 transitions. Word has length 181 [2021-12-06 20:43:53,516 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 20:43:53,516 INFO L470 AbstractCegarLoop]: Abstraction has 226216 states and 312333 transitions. [2021-12-06 20:43:53,516 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 4 states have internal predecessors, (70), 2 states have call successors, (20), 4 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2021-12-06 20:43:53,516 INFO L276 IsEmpty]: Start isEmpty. Operand 226216 states and 312333 transitions. [2021-12-06 20:43:53,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2021-12-06 20:43:53,521 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 20:43:53,522 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 6, 6, 6, 6, 6, 6, 5, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 20:43:53,522 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-12-06 20:43:53,522 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-12-06 20:43:53,522 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:43:53,522 INFO L85 PathProgramCache]: Analyzing trace with hash 2049435831, now seen corresponding path program 1 times [2021-12-06 20:43:53,523 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 20:43:53,523 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2123235618] [2021-12-06 20:43:53,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:43:53,523 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 20:43:53,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:43:53,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-06 20:43:53,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:43:53,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 20:43:53,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:43:53,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-06 20:43:53,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:43:53,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 20:43:53,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:43:53,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-06 20:43:53,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:43:53,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 20:43:53,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:43:53,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-06 20:43:53,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:43:53,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 20:43:53,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:43:53,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-06 20:43:53,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:43:53,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 20:43:53,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:43:53,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-06 20:43:53,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:43:53,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 20:43:53,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:43:53,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2021-12-06 20:43:53,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:43:53,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-12-06 20:43:53,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:43:53,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2021-12-06 20:43:53,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:43:53,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-06 20:43:53,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:43:53,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-12-06 20:43:53,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:43:54,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 20:43:54,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:43:54,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2021-12-06 20:43:54,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:43:54,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2021-12-06 20:43:54,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:43:54,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2021-12-06 20:43:54,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:43:54,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2021-12-06 20:43:54,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:43:54,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2021-12-06 20:43:54,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:43:54,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2021-12-06 20:43:54,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:43:54,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2021-12-06 20:43:54,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:43:54,130 INFO L134 CoverageAnalysis]: Checked inductivity of 291 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 283 trivial. 0 not checked. [2021-12-06 20:43:54,130 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 20:43:54,130 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2123235618] [2021-12-06 20:43:54,131 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2123235618] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 20:43:54,131 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 20:43:54,131 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-06 20:43:54,131 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1442269224] [2021-12-06 20:43:54,131 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 20:43:54,132 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-06 20:43:54,132 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 20:43:54,132 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-06 20:43:54,132 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-06 20:43:54,132 INFO L87 Difference]: Start difference. First operand 226216 states and 312333 transitions. Second operand has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 4 states have internal predecessors, (70), 2 states have call successors, (21), 4 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2021-12-06 20:44:03,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 20:44:03,340 INFO L93 Difference]: Finished difference Result 235041 states and 326919 transitions. [2021-12-06 20:44:03,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-06 20:44:03,341 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 4 states have internal predecessors, (70), 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 186 [2021-12-06 20:44:03,341 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 20:44:04,243 INFO L225 Difference]: With dead ends: 235041 [2021-12-06 20:44:04,243 INFO L226 Difference]: Without dead ends: 235039 [2021-12-06 20:44:04,328 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-12-06 20:44:04,328 INFO L933 BasicCegarLoop]: 3191 mSDtfsCounter, 3488 mSDsluCounter, 6521 mSDsCounter, 0 mSdLazyCounter, 2311 mSolverCounterSat, 1064 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3866 SdHoareTripleChecker+Valid, 9712 SdHoareTripleChecker+Invalid, 3375 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1064 IncrementalHoareTripleChecker+Valid, 2311 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2021-12-06 20:44:04,329 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3866 Valid, 9712 Invalid, 3375 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1064 Valid, 2311 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2021-12-06 20:44:04,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 235039 states. [2021-12-06 20:44:12,991 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 235039 to 226232. [2021-12-06 20:44:13,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 226232 states, 158195 states have (on average 1.2566326369354277) internal successors, (198793), 163375 states have internal predecessors, (198793), 54156 states have call successors, (54156), 13901 states have call predecessors, (54156), 13877 states have return successors, (59396), 51663 states have call predecessors, (59396), 54140 states have call successors, (59396) [2021-12-06 20:44:14,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226232 states to 226232 states and 312345 transitions. [2021-12-06 20:44:14,306 INFO L78 Accepts]: Start accepts. Automaton has 226232 states and 312345 transitions. Word has length 186 [2021-12-06 20:44:14,306 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 20:44:14,306 INFO L470 AbstractCegarLoop]: Abstraction has 226232 states and 312345 transitions. [2021-12-06 20:44:14,306 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 4 states have internal predecessors, (70), 2 states have call successors, (21), 4 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2021-12-06 20:44:14,307 INFO L276 IsEmpty]: Start isEmpty. Operand 226232 states and 312345 transitions. [2021-12-06 20:44:14,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2021-12-06 20:44:14,310 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 20:44:14,310 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 6, 6, 6, 6, 6, 6, 6, 5, 5, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 20:44:14,311 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-12-06 20:44:14,311 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-12-06 20:44:14,311 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:44:14,311 INFO L85 PathProgramCache]: Analyzing trace with hash -74422587, now seen corresponding path program 1 times [2021-12-06 20:44:14,311 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 20:44:14,311 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [464193253] [2021-12-06 20:44:14,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:44:14,312 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 20:44:14,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:44:14,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-06 20:44:14,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:44:14,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 20:44:14,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:44:14,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-06 20:44:14,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:44:14,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 20:44:14,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:44:14,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-06 20:44:14,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:44:14,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 20:44:14,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:44:14,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-06 20:44:14,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:44:14,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 20:44:14,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:44:14,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-06 20:44:14,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:44:14,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 20:44:14,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:44:14,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-06 20:44:14,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:44:14,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 20:44:14,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:44:14,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2021-12-06 20:44:14,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:44:14,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-12-06 20:44:14,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:44:14,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2021-12-06 20:44:14,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:44:14,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-06 20:44:14,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:44:14,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-12-06 20:44:14,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:44:14,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 20:44:14,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:44:14,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2021-12-06 20:44:14,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:44:14,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2021-12-06 20:44:14,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:44:14,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2021-12-06 20:44:14,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:44:14,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2021-12-06 20:44:14,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:44:14,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2021-12-06 20:44:14,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:44:14,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2021-12-06 20:44:14,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:44:14,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2021-12-06 20:44:14,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:44:14,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2021-12-06 20:44:14,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:44:14,905 INFO L134 CoverageAnalysis]: Checked inductivity of 309 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 299 trivial. 0 not checked. [2021-12-06 20:44:14,905 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 20:44:14,905 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [464193253] [2021-12-06 20:44:14,905 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [464193253] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 20:44:14,906 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 20:44:14,906 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-06 20:44:14,906 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1536772478] [2021-12-06 20:44:14,906 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 20:44:14,907 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-06 20:44:14,907 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 20:44:14,907 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-06 20:44:14,907 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-06 20:44:14,907 INFO L87 Difference]: Start difference. First operand 226232 states and 312345 transitions. Second operand has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 4 states have internal predecessors, (70), 2 states have call successors, (22), 4 states have call predecessors, (22), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2021-12-06 20:44:35,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 20:44:35,015 INFO L93 Difference]: Finished difference Result 692587 states and 961126 transitions. [2021-12-06 20:44:35,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-06 20:44:35,016 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 4 states have internal predecessors, (70), 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 191 [2021-12-06 20:44:35,016 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 20:44:37,131 INFO L225 Difference]: With dead ends: 692587 [2021-12-06 20:44:37,131 INFO L226 Difference]: Without dead ends: 466969 [2021-12-06 20:44:37,853 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-12-06 20:44:37,854 INFO L933 BasicCegarLoop]: 3890 mSDtfsCounter, 4160 mSDsluCounter, 10596 mSDsCounter, 0 mSdLazyCounter, 4015 mSolverCounterSat, 1643 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4664 SdHoareTripleChecker+Valid, 14486 SdHoareTripleChecker+Invalid, 5658 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1643 IncrementalHoareTripleChecker+Valid, 4015 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2021-12-06 20:44:37,854 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4664 Valid, 14486 Invalid, 5658 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1643 Valid, 4015 Invalid, 0 Unknown, 0 Unchecked, 4.5s Time] [2021-12-06 20:44:38,209 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 466969 states. [2021-12-06 20:44:54,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 466969 to 449118. [2021-12-06 20:44:54,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 449118 states, 314378 states have (on average 1.2577056918741134) internal successors, (395395), 324893 states have internal predecessors, (395395), 107248 states have call successors, (107248), 27693 states have call predecessors, (107248), 27488 states have return successors, (117488), 101939 states have call predecessors, (117488), 107216 states have call successors, (117488) [2021-12-06 20:44:57,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 449118 states to 449118 states and 620131 transitions. [2021-12-06 20:44:57,554 INFO L78 Accepts]: Start accepts. Automaton has 449118 states and 620131 transitions. Word has length 191 [2021-12-06 20:44:57,555 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 20:44:57,555 INFO L470 AbstractCegarLoop]: Abstraction has 449118 states and 620131 transitions. [2021-12-06 20:44:57,555 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 4 states have internal predecessors, (70), 2 states have call successors, (22), 4 states have call predecessors, (22), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2021-12-06 20:44:57,555 INFO L276 IsEmpty]: Start isEmpty. Operand 449118 states and 620131 transitions. [2021-12-06 20:44:57,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2021-12-06 20:44:57,559 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 20:44:57,559 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 7, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 20:44:57,560 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-12-06 20:44:57,560 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-12-06 20:44:57,560 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:44:57,560 INFO L85 PathProgramCache]: Analyzing trace with hash 902273335, now seen corresponding path program 1 times [2021-12-06 20:44:57,560 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 20:44:57,561 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1315200907] [2021-12-06 20:44:57,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:44:57,561 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 20:44:57,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:44:57,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-06 20:44:57,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:44:57,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 20:44:57,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:44:57,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-06 20:44:57,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:44:57,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 20:44:57,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:44:57,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-06 20:44:57,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:44:57,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 20:44:57,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:44:57,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-06 20:44:57,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:44:57,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 20:44:57,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:44:57,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-06 20:44:57,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:44:58,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 20:44:58,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:44:58,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-06 20:44:58,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:44:58,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 20:44:58,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:44:58,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2021-12-06 20:44:58,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:44:58,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-12-06 20:44:58,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:44:58,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2021-12-06 20:44:58,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:44:58,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-06 20:44:58,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:44:58,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-12-06 20:44:58,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:44:58,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 20:44:58,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:44:58,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2021-12-06 20:44:58,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:44:58,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2021-12-06 20:44:58,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:44:58,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2021-12-06 20:44:58,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:44:58,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2021-12-06 20:44:58,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:44:58,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2021-12-06 20:44:58,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:44:58,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2021-12-06 20:44:58,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:44:58,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2021-12-06 20:44:58,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:44:58,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2021-12-06 20:44:58,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:44:58,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2021-12-06 20:44:58,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:44:58,139 INFO L134 CoverageAnalysis]: Checked inductivity of 331 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 319 trivial. 0 not checked. [2021-12-06 20:44:58,139 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 20:44:58,139 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1315200907] [2021-12-06 20:44:58,139 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1315200907] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 20:44:58,139 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 20:44:58,139 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-06 20:44:58,139 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [946135998] [2021-12-06 20:44:58,140 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 20:44:58,140 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-06 20:44:58,140 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 20:44:58,140 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-06 20:44:58,140 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-06 20:44:58,140 INFO L87 Difference]: Start difference. First operand 449118 states and 620131 transitions. Second operand has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 4 states have internal predecessors, (70), 2 states have call successors, (23), 4 states have call predecessors, (23), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2021-12-06 20:45:16,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 20:45:16,170 INFO L93 Difference]: Finished difference Result 474265 states and 656438 transitions. [2021-12-06 20:45:16,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-06 20:45:16,171 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 4 states have internal predecessors, (70), 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 196 [2021-12-06 20:45:16,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 20:45:18,211 INFO L225 Difference]: With dead ends: 474265 [2021-12-06 20:45:18,211 INFO L226 Difference]: Without dead ends: 473384 [2021-12-06 20:45:18,402 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-12-06 20:45:18,402 INFO L933 BasicCegarLoop]: 3216 mSDtfsCounter, 3447 mSDsluCounter, 6645 mSDsCounter, 0 mSdLazyCounter, 2382 mSolverCounterSat, 1056 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3821 SdHoareTripleChecker+Valid, 9861 SdHoareTripleChecker+Invalid, 3438 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1056 IncrementalHoareTripleChecker+Valid, 2382 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2021-12-06 20:45:18,402 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3821 Valid, 9861 Invalid, 3438 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1056 Valid, 2382 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2021-12-06 20:45:18,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 473384 states. [2021-12-06 20:45:36,184 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 473384 to 455066. [2021-12-06 20:45:36,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 455066 states, 318523 states have (on average 1.2560223280579423) internal successors, (400072), 328993 states have internal predecessors, (400072), 107614 states have call successors, (107614), 29121 states have call predecessors, (107614), 28925 states have return successors, (117858), 102351 states have call predecessors, (117858), 107586 states have call successors, (117858) [2021-12-06 20:45:38,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 455066 states to 455066 states and 625544 transitions. [2021-12-06 20:45:38,958 INFO L78 Accepts]: Start accepts. Automaton has 455066 states and 625544 transitions. Word has length 196 [2021-12-06 20:45:38,959 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 20:45:38,959 INFO L470 AbstractCegarLoop]: Abstraction has 455066 states and 625544 transitions. [2021-12-06 20:45:38,959 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 4 states have internal predecessors, (70), 2 states have call successors, (23), 4 states have call predecessors, (23), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2021-12-06 20:45:38,959 INFO L276 IsEmpty]: Start isEmpty. Operand 455066 states and 625544 transitions. [2021-12-06 20:45:38,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2021-12-06 20:45:38,964 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 20:45:38,964 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 6, 6, 6, 6, 6, 6, 5, 5, 5, 4, 4, 4, 3, 3, 3, 3, 3, 3, 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] [2021-12-06 20:45:38,964 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-12-06 20:45:38,964 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock_tryErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-12-06 20:45:38,965 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:45:38,965 INFO L85 PathProgramCache]: Analyzing trace with hash 241569938, now seen corresponding path program 1 times [2021-12-06 20:45:38,965 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 20:45:38,965 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [434574200] [2021-12-06 20:45:38,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:45:38,965 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 20:45:39,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:45:39,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-06 20:45:39,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:45:39,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 20:45:39,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:45:39,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-06 20:45:39,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:45:39,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 20:45:39,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:45:39,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-06 20:45:39,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:45:39,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 20:45:39,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:45:39,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-06 20:45:39,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:45:39,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 20:45:39,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:45:39,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-06 20:45:39,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:45:39,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 20:45:39,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:45:39,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-06 20:45:39,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:45:39,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 20:45:39,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:45:39,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2021-12-06 20:45:39,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:45:39,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-12-06 20:45:39,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:45:39,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2021-12-06 20:45:39,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:45:39,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-06 20:45:39,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:45:39,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-12-06 20:45:39,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:45:39,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 20:45:39,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:45:39,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2021-12-06 20:45:39,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:45:39,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2021-12-06 20:45:39,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:45:39,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2021-12-06 20:45:39,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:45:39,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2021-12-06 20:45:39,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:45:39,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2021-12-06 20:45:39,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:45:39,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2021-12-06 20:45:39,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:45:39,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2021-12-06 20:45:39,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:45:39,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2021-12-06 20:45:39,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:45:39,329 INFO L134 CoverageAnalysis]: Checked inductivity of 401 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 373 trivial. 0 not checked. [2021-12-06 20:45:39,329 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 20:45:39,329 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [434574200] [2021-12-06 20:45:39,329 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [434574200] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 20:45:39,329 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 20:45:39,329 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-06 20:45:39,329 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [468145544] [2021-12-06 20:45:39,329 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 20:45:39,330 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-06 20:45:39,330 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 20:45:39,330 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-06 20:45:39,330 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-06 20:45:39,330 INFO L87 Difference]: Start difference. First operand 455066 states and 625544 transitions. Second operand has 4 states, 4 states have (on average 23.75) internal successors, (95), 3 states have internal predecessors, (95), 3 states have call successors, (21), 3 states have call predecessors, (21), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2021-12-06 20:46:07,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 20:46:07,394 INFO L93 Difference]: Finished difference Result 1083361 states and 1495351 transitions. [2021-12-06 20:46:07,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-06 20:46:07,395 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 23.75) internal successors, (95), 3 states have internal predecessors, (95), 3 states have call successors, (21), 3 states have call predecessors, (21), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) Word has length 211 [2021-12-06 20:46:07,395 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 20:46:10,518 INFO L225 Difference]: With dead ends: 1083361 [2021-12-06 20:46:10,518 INFO L226 Difference]: Without dead ends: 628320 [2021-12-06 20:46:12,058 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-06 20:46:12,059 INFO L933 BasicCegarLoop]: 6253 mSDtfsCounter, 3425 mSDsluCounter, 5235 mSDsCounter, 0 mSdLazyCounter, 2211 mSolverCounterSat, 1072 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3926 SdHoareTripleChecker+Valid, 11488 SdHoareTripleChecker+Invalid, 3283 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1072 IncrementalHoareTripleChecker+Valid, 2211 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2021-12-06 20:46:12,059 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3926 Valid, 11488 Invalid, 3283 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1072 Valid, 2211 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2021-12-06 20:46:12,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 628320 states. [2021-12-06 20:46:35,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 628320 to 603786. [2021-12-06 20:46:36,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 603786 states, 422456 states have (on average 1.2558088889730528) internal successors, (530524), 436269 states have internal predecessors, (530524), 142880 states have call successors, (142880), 38742 states have call predecessors, (142880), 38446 states have return successors, (156548), 135966 states have call predecessors, (156548), 142852 states have call successors, (156548) [2021-12-06 20:46:40,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 603786 states to 603786 states and 829952 transitions. [2021-12-06 20:46:40,183 INFO L78 Accepts]: Start accepts. Automaton has 603786 states and 829952 transitions. Word has length 211 [2021-12-06 20:46:40,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 20:46:40,184 INFO L470 AbstractCegarLoop]: Abstraction has 603786 states and 829952 transitions. [2021-12-06 20:46:40,184 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 23.75) internal successors, (95), 3 states have internal predecessors, (95), 3 states have call successors, (21), 3 states have call predecessors, (21), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2021-12-06 20:46:40,184 INFO L276 IsEmpty]: Start isEmpty. Operand 603786 states and 829952 transitions. [2021-12-06 20:46:40,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2021-12-06 20:46:40,188 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 20:46:40,188 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 6, 6, 6, 6, 6, 6, 5, 5, 5, 4, 4, 4, 3, 3, 3, 3, 3, 3, 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] [2021-12-06 20:46:40,189 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-12-06 20:46:40,189 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock_tryErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-12-06 20:46:40,190 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:46:40,190 INFO L85 PathProgramCache]: Analyzing trace with hash -2125124656, now seen corresponding path program 1 times [2021-12-06 20:46:40,190 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 20:46:40,190 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [37266994] [2021-12-06 20:46:40,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:46:40,190 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 20:46:40,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:46:40,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-06 20:46:40,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:46:40,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 20:46:40,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:46:40,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-06 20:46:40,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:46:40,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 20:46:40,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:46:40,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-06 20:46:40,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:46:40,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 20:46:40,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:46:40,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-06 20:46:40,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:46:40,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 20:46:40,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:46:40,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-06 20:46:40,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:46:40,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 20:46:40,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:46:40,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-06 20:46:40,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:46:40,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 20:46:40,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:46:40,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2021-12-06 20:46:40,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:46:40,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-12-06 20:46:40,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:46:40,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2021-12-06 20:46:40,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:46:40,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-06 20:46:40,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:46:40,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-12-06 20:46:40,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:46:40,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 20:46:40,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:46:40,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2021-12-06 20:46:40,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:46:40,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2021-12-06 20:46:40,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:46:40,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2021-12-06 20:46:40,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:46:40,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2021-12-06 20:46:40,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:46:40,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2021-12-06 20:46:40,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:46:40,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2021-12-06 20:46:40,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:46:40,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2021-12-06 20:46:40,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:46:40,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2021-12-06 20:46:40,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:46:40,565 INFO L134 CoverageAnalysis]: Checked inductivity of 401 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 390 trivial. 0 not checked. [2021-12-06 20:46:40,565 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 20:46:40,566 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [37266994] [2021-12-06 20:46:40,566 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [37266994] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 20:46:40,566 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 20:46:40,566 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-06 20:46:40,566 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [125388046] [2021-12-06 20:46:40,566 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 20:46:40,567 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-06 20:46:40,567 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 20:46:40,567 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-06 20:46:40,567 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-06 20:46:40,567 INFO L87 Difference]: Start difference. First operand 603786 states and 829952 transitions. Second operand has 4 states, 4 states have (on average 22.0) internal successors, (88), 3 states have internal predecessors, (88), 3 states have call successors, (20), 3 states have call predecessors, (20), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19)