./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-irda-via-ircc.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version dbf71c69 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_225c8c3b-a5c5-4163-9a03-71045637f075/bin/uautomizer-J5u9QxTXDZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_225c8c3b-a5c5-4163-9a03-71045637f075/bin/uautomizer-J5u9QxTXDZ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_225c8c3b-a5c5-4163-9a03-71045637f075/bin/uautomizer-J5u9QxTXDZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_225c8c3b-a5c5-4163-9a03-71045637f075/bin/uautomizer-J5u9QxTXDZ/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-irda-via-ircc.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_225c8c3b-a5c5-4163-9a03-71045637f075/bin/uautomizer-J5u9QxTXDZ/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_225c8c3b-a5c5-4163-9a03-71045637f075/bin/uautomizer-J5u9QxTXDZ --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 6c1be66de5de44f99e184f931232a9d8bcb0b8fd4712efbcede070913355a2c0 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-dbf71c6-m [2022-10-17 10:12:25,688 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-17 10:12:25,690 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-17 10:12:25,719 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-17 10:12:25,720 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-17 10:12:25,721 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-17 10:12:25,723 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-17 10:12:25,725 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-17 10:12:25,728 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-17 10:12:25,729 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-17 10:12:25,730 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-17 10:12:25,732 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-17 10:12:25,732 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-17 10:12:25,733 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-17 10:12:25,735 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-17 10:12:25,736 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-17 10:12:25,737 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-17 10:12:25,739 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-17 10:12:25,741 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-17 10:12:25,743 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-17 10:12:25,746 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-17 10:12:25,747 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-17 10:12:25,749 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-17 10:12:25,750 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-17 10:12:25,755 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-17 10:12:25,756 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-17 10:12:25,757 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-17 10:12:25,758 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-17 10:12:25,758 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-17 10:12:25,760 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-17 10:12:25,760 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-17 10:12:25,761 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-17 10:12:25,762 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-17 10:12:25,763 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-17 10:12:25,764 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-17 10:12:25,765 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-17 10:12:25,766 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-17 10:12:25,766 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-17 10:12:25,767 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-17 10:12:25,768 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-17 10:12:25,769 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-17 10:12:25,770 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_225c8c3b-a5c5-4163-9a03-71045637f075/bin/uautomizer-J5u9QxTXDZ/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-10-17 10:12:25,806 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-17 10:12:25,806 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-17 10:12:25,807 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-17 10:12:25,807 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-17 10:12:25,808 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-17 10:12:25,808 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-17 10:12:25,808 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-17 10:12:25,809 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-17 10:12:25,809 INFO L138 SettingsManager]: * Use SBE=true [2022-10-17 10:12:25,809 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-17 10:12:25,810 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-17 10:12:25,810 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-17 10:12:25,810 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-17 10:12:25,810 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-17 10:12:25,811 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-17 10:12:25,811 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-17 10:12:25,811 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-17 10:12:25,811 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-17 10:12:25,812 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-17 10:12:25,812 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-17 10:12:25,812 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-17 10:12:25,812 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-17 10:12:25,813 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-17 10:12:25,813 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-17 10:12:25,813 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-17 10:12:25,813 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-17 10:12:25,814 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-17 10:12:25,814 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-10-17 10:12:25,814 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-10-17 10:12:25,814 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-17 10:12:25,815 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_225c8c3b-a5c5-4163-9a03-71045637f075/bin/uautomizer-J5u9QxTXDZ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_225c8c3b-a5c5-4163-9a03-71045637f075/bin/uautomizer-J5u9QxTXDZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6c1be66de5de44f99e184f931232a9d8bcb0b8fd4712efbcede070913355a2c0 [2022-10-17 10:12:26,101 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-17 10:12:26,122 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-17 10:12:26,125 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-17 10:12:26,126 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-17 10:12:26,127 INFO L275 PluginConnector]: CDTParser initialized [2022-10-17 10:12:26,128 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_225c8c3b-a5c5-4163-9a03-71045637f075/bin/uautomizer-J5u9QxTXDZ/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-irda-via-ircc.cil.i [2022-10-17 10:12:26,198 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_225c8c3b-a5c5-4163-9a03-71045637f075/bin/uautomizer-J5u9QxTXDZ/data/0cfba4d84/9dcfc556d14a42e0977d265a7e21a24e/FLAG5f6a90156 [2022-10-17 10:12:27,091 INFO L306 CDTParser]: Found 1 translation units. [2022-10-17 10:12:27,091 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_225c8c3b-a5c5-4163-9a03-71045637f075/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-irda-via-ircc.cil.i [2022-10-17 10:12:27,135 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_225c8c3b-a5c5-4163-9a03-71045637f075/bin/uautomizer-J5u9QxTXDZ/data/0cfba4d84/9dcfc556d14a42e0977d265a7e21a24e/FLAG5f6a90156 [2022-10-17 10:12:27,551 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_225c8c3b-a5c5-4163-9a03-71045637f075/bin/uautomizer-J5u9QxTXDZ/data/0cfba4d84/9dcfc556d14a42e0977d265a7e21a24e [2022-10-17 10:12:27,556 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-17 10:12:27,559 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-10-17 10:12:27,561 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-17 10:12:27,561 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-17 10:12:27,565 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-17 10:12:27,570 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 10:12:27" (1/1) ... [2022-10-17 10:12:27,571 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@786eabd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:12:27, skipping insertion in model container [2022-10-17 10:12:27,571 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 10:12:27" (1/1) ... [2022-10-17 10:12:27,581 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-17 10:12:27,774 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-17 10:12:30,654 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_225c8c3b-a5c5-4163-9a03-71045637f075/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-irda-via-ircc.cil.i[324559,324572] [2022-10-17 10:12:30,659 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_225c8c3b-a5c5-4163-9a03-71045637f075/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-irda-via-ircc.cil.i[324728,324741] [2022-10-17 10:12:30,659 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_225c8c3b-a5c5-4163-9a03-71045637f075/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-irda-via-ircc.cil.i[324895,324908] [2022-10-17 10:12:30,660 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_225c8c3b-a5c5-4163-9a03-71045637f075/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-irda-via-ircc.cil.i[325063,325076] [2022-10-17 10:12:30,676 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 10:12:30,718 INFO L203 MainTranslator]: Completed pre-run [2022-10-17 10:12:31,142 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_225c8c3b-a5c5-4163-9a03-71045637f075/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-irda-via-ircc.cil.i[324559,324572] [2022-10-17 10:12:31,143 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_225c8c3b-a5c5-4163-9a03-71045637f075/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-irda-via-ircc.cil.i[324728,324741] [2022-10-17 10:12:31,144 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_225c8c3b-a5c5-4163-9a03-71045637f075/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-irda-via-ircc.cil.i[324895,324908] [2022-10-17 10:12:31,144 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_225c8c3b-a5c5-4163-9a03-71045637f075/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-irda-via-ircc.cil.i[325063,325076] [2022-10-17 10:12:31,151 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 10:12:31,323 INFO L208 MainTranslator]: Completed translation [2022-10-17 10:12:31,324 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:12:31 WrapperNode [2022-10-17 10:12:31,324 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-17 10:12:31,325 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-17 10:12:31,326 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-17 10:12:31,326 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-17 10:12:31,333 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:12:31" (1/1) ... [2022-10-17 10:12:31,417 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:12:31" (1/1) ... [2022-10-17 10:12:31,561 INFO L138 Inliner]: procedures = 386, calls = 2027, calls flagged for inlining = 151, calls inlined = 130, statements flattened = 4217 [2022-10-17 10:12:31,561 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-17 10:12:31,562 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-17 10:12:31,562 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-17 10:12:31,562 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-17 10:12:31,572 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:12:31" (1/1) ... [2022-10-17 10:12:31,572 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:12:31" (1/1) ... [2022-10-17 10:12:31,597 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:12:31" (1/1) ... [2022-10-17 10:12:31,597 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:12:31" (1/1) ... [2022-10-17 10:12:31,797 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:12:31" (1/1) ... [2022-10-17 10:12:31,825 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:12:31" (1/1) ... [2022-10-17 10:12:31,846 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:12:31" (1/1) ... [2022-10-17 10:12:31,875 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:12:31" (1/1) ... [2022-10-17 10:12:31,910 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-17 10:12:31,912 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-17 10:12:31,912 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-17 10:12:31,912 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-17 10:12:31,913 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:12:31" (1/1) ... [2022-10-17 10:12:31,919 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-17 10:12:31,933 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_225c8c3b-a5c5-4163-9a03-71045637f075/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:12:31,955 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_225c8c3b-a5c5-4163-9a03-71045637f075/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-10-17 10:12:31,984 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_225c8c3b-a5c5-4163-9a03-71045637f075/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-10-17 10:12:32,007 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-10-17 10:12:32,007 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-10-17 10:12:32,007 INFO L130 BoogieDeclarations]: Found specification of procedure RxCurCount [2022-10-17 10:12:32,007 INFO L138 BoogieDeclarations]: Found implementation of procedure RxCurCount [2022-10-17 10:12:32,008 INFO L130 BoogieDeclarations]: Found specification of procedure irda_setup_dma [2022-10-17 10:12:32,008 INFO L138 BoogieDeclarations]: Found implementation of procedure irda_setup_dma [2022-10-17 10:12:32,008 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2022-10-17 10:12:32,008 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2022-10-17 10:12:32,008 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-10-17 10:12:32,009 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-10-17 10:12:32,009 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_73 [2022-10-17 10:12:32,009 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_73 [2022-10-17 10:12:32,009 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2022-10-17 10:12:32,009 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2022-10-17 10:12:32,009 INFO L130 BoogieDeclarations]: Found specification of procedure CheckRegBit [2022-10-17 10:12:32,010 INFO L138 BoogieDeclarations]: Found implementation of procedure CheckRegBit [2022-10-17 10:12:32,010 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-10-17 10:12:32,010 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-10-17 10:12:32,010 INFO L130 BoogieDeclarations]: Found specification of procedure via_remove_one [2022-10-17 10:12:32,010 INFO L138 BoogieDeclarations]: Found implementation of procedure via_remove_one [2022-10-17 10:12:32,010 INFO L130 BoogieDeclarations]: Found specification of procedure via_ircc_change_speed [2022-10-17 10:12:32,011 INFO L138 BoogieDeclarations]: Found implementation of procedure via_ircc_change_speed [2022-10-17 10:12:32,011 INFO L130 BoogieDeclarations]: Found specification of procedure dma_zalloc_coherent [2022-10-17 10:12:32,011 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_zalloc_coherent [2022-10-17 10:12:32,011 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-10-17 10:12:32,011 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-10-17 10:12:32,012 INFO L130 BoogieDeclarations]: Found specification of procedure SetPulseWidth [2022-10-17 10:12:32,012 INFO L138 BoogieDeclarations]: Found implementation of procedure SetPulseWidth [2022-10-17 10:12:32,012 INFO L130 BoogieDeclarations]: Found specification of procedure Tdelay [2022-10-17 10:12:32,012 INFO L138 BoogieDeclarations]: Found implementation of procedure Tdelay [2022-10-17 10:12:32,012 INFO L130 BoogieDeclarations]: Found specification of procedure netif_rx [2022-10-17 10:12:32,013 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_rx [2022-10-17 10:12:32,013 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-10-17 10:12:32,013 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-10-17 10:12:32,013 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-10-17 10:12:32,014 INFO L130 BoogieDeclarations]: Found specification of procedure ClkTx [2022-10-17 10:12:32,014 INFO L138 BoogieDeclarations]: Found implementation of procedure ClkTx [2022-10-17 10:12:32,014 INFO L130 BoogieDeclarations]: Found specification of procedure WriteLPCReg [2022-10-17 10:12:32,014 INFO L138 BoogieDeclarations]: Found implementation of procedure WriteLPCReg [2022-10-17 10:12:32,015 INFO L130 BoogieDeclarations]: Found specification of procedure capable [2022-10-17 10:12:32,015 INFO L138 BoogieDeclarations]: Found implementation of procedure capable [2022-10-17 10:12:32,015 INFO L130 BoogieDeclarations]: Found specification of procedure CommonInit [2022-10-17 10:12:32,015 INFO L138 BoogieDeclarations]: Found implementation of procedure CommonInit [2022-10-17 10:12:32,016 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-10-17 10:12:32,016 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-10-17 10:12:32,016 INFO L130 BoogieDeclarations]: Found specification of procedure via_ircc_change_dongle_speed [2022-10-17 10:12:32,016 INFO L138 BoogieDeclarations]: Found implementation of procedure via_ircc_change_dongle_speed [2022-10-17 10:12:32,016 INFO L130 BoogieDeclarations]: Found specification of procedure ReadLPCReg [2022-10-17 10:12:32,017 INFO L138 BoogieDeclarations]: Found implementation of procedure ReadLPCReg [2022-10-17 10:12:32,017 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-10-17 10:12:32,017 INFO L130 BoogieDeclarations]: Found specification of procedure free_dma [2022-10-17 10:12:32,018 INFO L138 BoogieDeclarations]: Found implementation of procedure free_dma [2022-10-17 10:12:32,019 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_lock_of_via_ircc_cb [2022-10-17 10:12:32,019 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_lock_of_via_ircc_cb [2022-10-17 10:12:32,020 INFO L130 BoogieDeclarations]: Found specification of procedure via_ircc_dma_receive [2022-10-17 10:12:32,021 INFO L138 BoogieDeclarations]: Found implementation of procedure via_ircc_dma_receive [2022-10-17 10:12:32,021 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-10-17 10:12:32,021 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-10-17 10:12:32,022 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-10-17 10:12:32,022 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-10-17 10:12:32,022 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-10-17 10:12:32,022 INFO L130 BoogieDeclarations]: Found specification of procedure via_ircc_net_close [2022-10-17 10:12:32,022 INFO L138 BoogieDeclarations]: Found implementation of procedure via_ircc_net_close [2022-10-17 10:12:32,022 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-10-17 10:12:32,023 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-10-17 10:12:32,023 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-10-17 10:12:32,024 INFO L130 BoogieDeclarations]: Found specification of procedure CkRxRecv [2022-10-17 10:12:32,024 INFO L138 BoogieDeclarations]: Found implementation of procedure CkRxRecv [2022-10-17 10:12:32,024 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2022-10-17 10:12:32,024 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2022-10-17 10:12:32,024 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2022-10-17 10:12:32,024 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2022-10-17 10:12:32,025 INFO L130 BoogieDeclarations]: Found specification of procedure irda_get_next_speed [2022-10-17 10:12:32,025 INFO L138 BoogieDeclarations]: Found implementation of procedure irda_get_next_speed [2022-10-17 10:12:32,025 INFO L130 BoogieDeclarations]: Found specification of procedure ReadReg [2022-10-17 10:12:32,025 INFO L138 BoogieDeclarations]: Found implementation of procedure ReadReg [2022-10-17 10:12:32,025 INFO L130 BoogieDeclarations]: Found specification of procedure via_ircc_open [2022-10-17 10:12:32,026 INFO L138 BoogieDeclarations]: Found implementation of procedure via_ircc_open [2022-10-17 10:12:32,026 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2022-10-17 10:12:32,026 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2022-10-17 10:12:32,026 INFO L130 BoogieDeclarations]: Found specification of procedure WriteRegBit [2022-10-17 10:12:32,026 INFO L138 BoogieDeclarations]: Found implementation of procedure WriteRegBit [2022-10-17 10:12:32,026 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-10-17 10:12:32,027 INFO L130 BoogieDeclarations]: Found specification of procedure Wr_Indx [2022-10-17 10:12:32,027 INFO L138 BoogieDeclarations]: Found implementation of procedure Wr_Indx [2022-10-17 10:12:32,028 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-17 10:12:32,028 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-10-17 10:12:32,028 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-10-17 10:12:32,028 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-10-17 10:12:32,028 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-10-17 10:12:32,029 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-10-17 10:12:32,029 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-10-17 10:12:32,029 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-10-17 10:12:32,030 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2022-10-17 10:12:32,030 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2022-10-17 10:12:32,030 INFO L130 BoogieDeclarations]: Found specification of procedure WriteReg [2022-10-17 10:12:32,030 INFO L138 BoogieDeclarations]: Found implementation of procedure WriteReg [2022-10-17 10:12:32,030 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2022-10-17 10:12:32,030 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2022-10-17 10:12:32,031 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-10-17 10:12:32,031 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-10-17 10:12:32,031 INFO L130 BoogieDeclarations]: Found specification of procedure SetBaudRate [2022-10-17 10:12:32,031 INFO L138 BoogieDeclarations]: Found implementation of procedure SetBaudRate [2022-10-17 10:12:32,031 INFO L130 BoogieDeclarations]: Found specification of procedure Wr_Byte [2022-10-17 10:12:32,032 INFO L138 BoogieDeclarations]: Found implementation of procedure Wr_Byte [2022-10-17 10:12:32,032 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2022-10-17 10:12:32,032 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2022-10-17 10:12:32,032 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2022-10-17 10:12:32,033 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2022-10-17 10:12:32,033 INFO L130 BoogieDeclarations]: Found specification of procedure via_ircc_net_open [2022-10-17 10:12:32,033 INFO L138 BoogieDeclarations]: Found implementation of procedure via_ircc_net_open [2022-10-17 10:12:32,034 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-17 10:12:32,034 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-17 10:12:32,037 INFO L130 BoogieDeclarations]: Found specification of procedure ResetChip [2022-10-17 10:12:32,037 INFO L138 BoogieDeclarations]: Found implementation of procedure ResetChip [2022-10-17 10:12:32,039 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-10-17 10:12:32,039 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-10-17 10:12:32,039 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-10-17 10:12:32,039 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-10-17 10:12:32,040 INFO L130 BoogieDeclarations]: Found specification of procedure irda_device_txqueue_empty [2022-10-17 10:12:32,040 INFO L138 BoogieDeclarations]: Found implementation of procedure irda_device_txqueue_empty [2022-10-17 10:12:32,040 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-10-17 10:12:32,046 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-10-17 10:12:32,047 INFO L130 BoogieDeclarations]: Found specification of procedure pci_read_config_byte [2022-10-17 10:12:32,047 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_read_config_byte [2022-10-17 10:12:32,047 INFO L130 BoogieDeclarations]: Found specification of procedure Sdelay [2022-10-17 10:12:32,047 INFO L138 BoogieDeclarations]: Found implementation of procedure Sdelay [2022-10-17 10:12:32,047 INFO L130 BoogieDeclarations]: Found specification of procedure SetSIR [2022-10-17 10:12:32,047 INFO L138 BoogieDeclarations]: Found implementation of procedure SetSIR [2022-10-17 10:12:32,048 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2022-10-17 10:12:32,048 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2022-10-17 10:12:32,048 INFO L130 BoogieDeclarations]: Found specification of procedure SetMaxRxPacketSize [2022-10-17 10:12:32,048 INFO L138 BoogieDeclarations]: Found implementation of procedure SetMaxRxPacketSize [2022-10-17 10:12:32,048 INFO L130 BoogieDeclarations]: Found specification of procedure GetRecvByte [2022-10-17 10:12:32,048 INFO L138 BoogieDeclarations]: Found implementation of procedure GetRecvByte [2022-10-17 10:12:32,048 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2022-10-17 10:12:32,049 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2022-10-17 10:12:32,049 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-10-17 10:12:32,049 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-10-17 10:12:32,049 INFO L130 BoogieDeclarations]: Found specification of procedure hwreset [2022-10-17 10:12:32,049 INFO L138 BoogieDeclarations]: Found implementation of procedure hwreset [2022-10-17 10:12:32,049 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-10-17 10:12:32,050 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2022-10-17 10:12:32,050 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2022-10-17 10:12:32,050 INFO L130 BoogieDeclarations]: Found specification of procedure pci_write_config_byte [2022-10-17 10:12:32,050 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_write_config_byte [2022-10-17 10:12:32,050 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-10-17 10:12:32,050 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-10-17 10:12:32,050 INFO L130 BoogieDeclarations]: Found specification of procedure outb [2022-10-17 10:12:32,051 INFO L138 BoogieDeclarations]: Found implementation of procedure outb [2022-10-17 10:12:32,051 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-10-17 10:12:32,051 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-10-17 10:12:32,051 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq [2022-10-17 10:12:32,051 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq [2022-10-17 10:12:32,051 INFO L130 BoogieDeclarations]: Found specification of procedure via_ircc_dma_xmit [2022-10-17 10:12:32,051 INFO L138 BoogieDeclarations]: Found implementation of procedure via_ircc_dma_xmit [2022-10-17 10:12:32,052 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reserve [2022-10-17 10:12:32,052 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reserve [2022-10-17 10:12:32,052 INFO L130 BoogieDeclarations]: Found specification of procedure dma_free_attrs [2022-10-17 10:12:32,052 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_free_attrs [2022-10-17 10:12:32,052 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2022-10-17 10:12:32,052 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2022-10-17 10:12:32,052 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-10-17 10:12:32,053 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-10-17 10:12:32,053 INFO L130 BoogieDeclarations]: Found specification of procedure __release_region [2022-10-17 10:12:32,053 INFO L138 BoogieDeclarations]: Found implementation of procedure __release_region [2022-10-17 10:12:32,053 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-10-17 10:12:32,053 INFO L130 BoogieDeclarations]: Found specification of procedure net_ratelimit [2022-10-17 10:12:32,053 INFO L138 BoogieDeclarations]: Found implementation of procedure net_ratelimit [2022-10-17 10:12:32,054 INFO L130 BoogieDeclarations]: Found specification of procedure SetSendByte [2022-10-17 10:12:32,054 INFO L138 BoogieDeclarations]: Found implementation of procedure SetSendByte [2022-10-17 10:12:32,054 INFO L130 BoogieDeclarations]: Found specification of procedure dev_alloc_skb [2022-10-17 10:12:32,054 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_alloc_skb [2022-10-17 10:12:32,054 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-10-17 10:12:32,054 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-10-17 10:12:32,054 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_lock_of_via_ircc_cb [2022-10-17 10:12:32,055 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_lock_of_via_ircc_cb [2022-10-17 10:12:32,055 INFO L130 BoogieDeclarations]: Found specification of procedure SetSendPreambleCount [2022-10-17 10:12:32,055 INFO L138 BoogieDeclarations]: Found implementation of procedure SetSendPreambleCount [2022-10-17 10:12:32,055 INFO L130 BoogieDeclarations]: Found specification of procedure InitCard [2022-10-17 10:12:32,055 INFO L138 BoogieDeclarations]: Found implementation of procedure InitCard [2022-10-17 10:12:32,056 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-10-17 10:12:32,056 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-10-17 10:12:32,056 INFO L130 BoogieDeclarations]: Found specification of procedure SetTimer [2022-10-17 10:12:32,057 INFO L138 BoogieDeclarations]: Found implementation of procedure SetTimer [2022-10-17 10:12:32,057 INFO L130 BoogieDeclarations]: Found specification of procedure ActClk [2022-10-17 10:12:32,059 INFO L138 BoogieDeclarations]: Found implementation of procedure ActClk [2022-10-17 10:12:32,059 INFO L130 BoogieDeclarations]: Found specification of procedure request_dma [2022-10-17 10:12:32,059 INFO L138 BoogieDeclarations]: Found implementation of procedure request_dma [2022-10-17 10:12:32,059 INFO L130 BoogieDeclarations]: Found specification of procedure inb [2022-10-17 10:12:32,059 INFO L138 BoogieDeclarations]: Found implementation of procedure inb [2022-10-17 10:12:32,059 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-17 10:12:32,060 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reset_mac_header [2022-10-17 10:12:32,060 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reset_mac_header [2022-10-17 10:12:32,060 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2022-10-17 10:12:32,060 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2022-10-17 10:12:32,060 INFO L130 BoogieDeclarations]: Found specification of procedure skb_copy_to_linear_data [2022-10-17 10:12:32,060 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_copy_to_linear_data [2022-10-17 10:12:32,938 INFO L235 CfgBuilder]: Building ICFG [2022-10-17 10:12:32,947 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-17 10:12:33,182 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-10-17 10:12:39,442 INFO L276 CfgBuilder]: Performing block encoding [2022-10-17 10:12:39,464 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-17 10:12:39,465 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-10-17 10:12:39,471 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 10:12:39 BoogieIcfgContainer [2022-10-17 10:12:39,471 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-17 10:12:39,474 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-17 10:12:39,474 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-17 10:12:39,478 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-17 10:12:39,478 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.10 10:12:27" (1/3) ... [2022-10-17 10:12:39,479 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2feaef14 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.10 10:12:39, skipping insertion in model container [2022-10-17 10:12:39,479 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:12:31" (2/3) ... [2022-10-17 10:12:39,480 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2feaef14 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.10 10:12:39, skipping insertion in model container [2022-10-17 10:12:39,480 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 10:12:39" (3/3) ... [2022-10-17 10:12:39,481 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_linux-kernel-locking-spinlock_drivers-net-irda-via-ircc.cil.i [2022-10-17 10:12:39,503 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-17 10:12:39,504 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2022-10-17 10:12:39,629 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-17 10:12:39,637 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@45c8547, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-17 10:12:39,637 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-10-17 10:12:39,651 INFO L276 IsEmpty]: Start isEmpty. Operand has 1902 states, 1173 states have (on average 1.298380221653879) internal successors, (1523), 1206 states have internal predecessors, (1523), 635 states have call successors, (635), 91 states have call predecessors, (635), 90 states have return successors, (632), 620 states have call predecessors, (632), 632 states have call successors, (632) [2022-10-17 10:12:39,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2022-10-17 10:12:39,664 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:12:39,665 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 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] [2022-10-17 10:12:39,666 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-10-17 10:12:39,671 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:12:39,672 INFO L85 PathProgramCache]: Analyzing trace with hash 1136157762, now seen corresponding path program 1 times [2022-10-17 10:12:39,683 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:12:39,684 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [595334548] [2022-10-17 10:12:39,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:12:39,685 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:12:40,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:12:40,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-17 10:12:41,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:12:41,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-10-17 10:12:41,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:12:41,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-10-17 10:12:41,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:12:41,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 10:12:41,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:12:41,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-10-17 10:12:41,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:12:41,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-10-17 10:12:41,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:12:41,107 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-10-17 10:12:41,108 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:12:41,108 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [595334548] [2022-10-17 10:12:41,109 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [595334548] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:12:41,109 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:12:41,110 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-17 10:12:41,111 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1729402994] [2022-10-17 10:12:41,112 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:12:41,117 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-17 10:12:41,117 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:12:41,150 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-17 10:12:41,155 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-17 10:12:41,165 INFO L87 Difference]: Start difference. First operand has 1902 states, 1173 states have (on average 1.298380221653879) internal successors, (1523), 1206 states have internal predecessors, (1523), 635 states have call successors, (635), 91 states have call predecessors, (635), 90 states have return successors, (632), 620 states have call predecessors, (632), 632 states have call successors, (632) Second operand has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (8), 3 states have call predecessors, (8), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-10-17 10:12:41,640 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:12:41,640 INFO L93 Difference]: Finished difference Result 3777 states and 5648 transitions. [2022-10-17 10:12:41,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-17 10:12:41,643 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (8), 3 states have call predecessors, (8), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 51 [2022-10-17 10:12:41,644 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 10:12:41,691 INFO L225 Difference]: With dead ends: 3777 [2022-10-17 10:12:41,691 INFO L226 Difference]: Without dead ends: 1894 [2022-10-17 10:12:41,721 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-10-17 10:12:41,728 INFO L413 NwaCegarLoop]: 2732 mSDtfsCounter, 2706 mSDsluCounter, 5449 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2720 SdHoareTripleChecker+Valid, 8181 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-17 10:12:41,731 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2720 Valid, 8181 Invalid, 22 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-17 10:12:41,754 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1894 states. [2022-10-17 10:12:41,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1894 to 1894. [2022-10-17 10:12:41,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1894 states, 1169 states have (on average 1.2540633019674936) internal successors, (1466), 1202 states have internal predecessors, (1466), 632 states have call successors, (632), 91 states have call predecessors, (632), 90 states have return successors, (629), 617 states have call predecessors, (629), 629 states have call successors, (629) [2022-10-17 10:12:42,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1894 states to 1894 states and 2727 transitions. [2022-10-17 10:12:42,011 INFO L78 Accepts]: Start accepts. Automaton has 1894 states and 2727 transitions. Word has length 51 [2022-10-17 10:12:42,012 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 10:12:42,012 INFO L495 AbstractCegarLoop]: Abstraction has 1894 states and 2727 transitions. [2022-10-17 10:12:42,012 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (8), 3 states have call predecessors, (8), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-10-17 10:12:42,013 INFO L276 IsEmpty]: Start isEmpty. Operand 1894 states and 2727 transitions. [2022-10-17 10:12:42,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-10-17 10:12:42,016 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:12:42,017 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:12:42,017 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-17 10:12:42,017 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-10-17 10:12:42,018 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:12:42,018 INFO L85 PathProgramCache]: Analyzing trace with hash 1221928255, now seen corresponding path program 1 times [2022-10-17 10:12:42,019 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:12:42,019 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1637665208] [2022-10-17 10:12:42,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:12:42,020 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:12:42,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:12:42,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-17 10:12:42,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:12:42,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-10-17 10:12:42,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:12:42,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-10-17 10:12:42,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:12:42,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 10:12:42,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:12:42,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-10-17 10:12:42,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:12:42,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-10-17 10:12:42,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:12:42,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-10-17 10:12:42,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:12:42,633 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-10-17 10:12:42,634 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:12:42,634 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1637665208] [2022-10-17 10:12:42,634 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1637665208] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:12:42,635 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:12:42,635 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-17 10:12:42,635 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1255054373] [2022-10-17 10:12:42,635 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:12:42,637 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-17 10:12:42,637 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:12:42,638 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-17 10:12:42,638 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-17 10:12:42,639 INFO L87 Difference]: Start difference. First operand 1894 states and 2727 transitions. Second operand has 5 states, 5 states have (on average 6.4) internal successors, (32), 4 states have internal predecessors, (32), 2 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-10-17 10:12:42,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:12:42,892 INFO L93 Difference]: Finished difference Result 1900 states and 2732 transitions. [2022-10-17 10:12:42,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-17 10:12:42,892 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.4) internal successors, (32), 4 states have internal predecessors, (32), 2 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 56 [2022-10-17 10:12:42,893 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 10:12:42,914 INFO L225 Difference]: With dead ends: 1900 [2022-10-17 10:12:42,915 INFO L226 Difference]: Without dead ends: 1898 [2022-10-17 10:12:42,917 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-10-17 10:12:42,919 INFO L413 NwaCegarLoop]: 2724 mSDtfsCounter, 2691 mSDsluCounter, 5427 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2703 SdHoareTripleChecker+Valid, 8151 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-17 10:12:42,920 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2703 Valid, 8151 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-17 10:12:42,925 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1898 states. [2022-10-17 10:12:43,086 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1898 to 1898. [2022-10-17 10:12:43,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1898 states, 1172 states have (on average 1.2534129692832765) internal successors, (1469), 1205 states have internal predecessors, (1469), 632 states have call successors, (632), 92 states have call predecessors, (632), 91 states have return successors, (629), 617 states have call predecessors, (629), 629 states have call successors, (629) [2022-10-17 10:12:43,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1898 states to 1898 states and 2730 transitions. [2022-10-17 10:12:43,121 INFO L78 Accepts]: Start accepts. Automaton has 1898 states and 2730 transitions. Word has length 56 [2022-10-17 10:12:43,122 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 10:12:43,122 INFO L495 AbstractCegarLoop]: Abstraction has 1898 states and 2730 transitions. [2022-10-17 10:12:43,122 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.4) internal successors, (32), 4 states have internal predecessors, (32), 2 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-10-17 10:12:43,122 INFO L276 IsEmpty]: Start isEmpty. Operand 1898 states and 2730 transitions. [2022-10-17 10:12:43,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2022-10-17 10:12:43,126 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:12:43,126 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:12:43,126 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-17 10:12:43,126 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-10-17 10:12:43,127 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:12:43,127 INFO L85 PathProgramCache]: Analyzing trace with hash 1736938018, now seen corresponding path program 1 times [2022-10-17 10:12:43,127 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:12:43,128 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [164900932] [2022-10-17 10:12:43,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:12:43,128 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:12:43,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:12:43,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-17 10:12:43,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:12:43,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-10-17 10:12:43,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:12:43,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-10-17 10:12:43,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:12:43,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 10:12:43,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:12:43,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-10-17 10:12:43,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:12:43,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-10-17 10:12:43,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:12:43,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-10-17 10:12:43,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:12:43,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-10-17 10:12:43,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:12:43,639 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2022-10-17 10:12:43,640 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:12:43,640 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [164900932] [2022-10-17 10:12:43,640 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [164900932] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:12:43,640 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:12:43,641 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-17 10:12:43,641 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [496830790] [2022-10-17 10:12:43,641 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:12:43,642 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-17 10:12:43,642 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:12:43,642 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-17 10:12:43,643 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-17 10:12:43,643 INFO L87 Difference]: Start difference. First operand 1898 states and 2730 transitions. Second operand has 5 states, 5 states have (on average 6.4) internal successors, (32), 4 states have internal predecessors, (32), 2 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-10-17 10:12:43,910 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:12:43,910 INFO L93 Difference]: Finished difference Result 1904 states and 2735 transitions. [2022-10-17 10:12:43,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-17 10:12:43,911 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.4) internal successors, (32), 4 states have internal predecessors, (32), 2 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 61 [2022-10-17 10:12:43,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 10:12:43,933 INFO L225 Difference]: With dead ends: 1904 [2022-10-17 10:12:43,933 INFO L226 Difference]: Without dead ends: 1902 [2022-10-17 10:12:43,936 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-10-17 10:12:43,938 INFO L413 NwaCegarLoop]: 2724 mSDtfsCounter, 2691 mSDsluCounter, 5427 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2702 SdHoareTripleChecker+Valid, 8151 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-17 10:12:43,938 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2702 Valid, 8151 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-17 10:12:43,944 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1902 states. [2022-10-17 10:12:44,122 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1902 to 1902. [2022-10-17 10:12:44,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1902 states, 1175 states have (on average 1.2527659574468084) internal successors, (1472), 1208 states have internal predecessors, (1472), 632 states have call successors, (632), 93 states have call predecessors, (632), 92 states have return successors, (629), 617 states have call predecessors, (629), 629 states have call successors, (629) [2022-10-17 10:12:44,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1902 states to 1902 states and 2733 transitions. [2022-10-17 10:12:44,158 INFO L78 Accepts]: Start accepts. Automaton has 1902 states and 2733 transitions. Word has length 61 [2022-10-17 10:12:44,159 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 10:12:44,159 INFO L495 AbstractCegarLoop]: Abstraction has 1902 states and 2733 transitions. [2022-10-17 10:12:44,159 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.4) internal successors, (32), 4 states have internal predecessors, (32), 2 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-10-17 10:12:44,160 INFO L276 IsEmpty]: Start isEmpty. Operand 1902 states and 2733 transitions. [2022-10-17 10:12:44,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-10-17 10:12:44,162 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:12:44,162 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 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] [2022-10-17 10:12:44,162 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-10-17 10:12:44,162 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-10-17 10:12:44,163 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:12:44,163 INFO L85 PathProgramCache]: Analyzing trace with hash 1995559647, now seen corresponding path program 1 times [2022-10-17 10:12:44,163 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:12:44,164 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1195724335] [2022-10-17 10:12:44,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:12:44,164 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:12:44,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:12:44,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-17 10:12:44,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:12:44,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-10-17 10:12:44,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:12:44,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-10-17 10:12:44,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:12:44,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 10:12:44,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:12:44,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-10-17 10:12:44,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:12:44,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-10-17 10:12:44,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:12:44,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-10-17 10:12:44,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:12:44,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-10-17 10:12:44,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:12:44,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-10-17 10:12:44,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:12:44,709 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-10-17 10:12:44,709 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:12:44,709 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1195724335] [2022-10-17 10:12:44,709 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1195724335] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:12:44,710 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:12:44,710 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-17 10:12:44,710 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1731191037] [2022-10-17 10:12:44,710 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:12:44,711 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-17 10:12:44,711 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:12:44,711 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-17 10:12:44,711 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-17 10:12:44,712 INFO L87 Difference]: Start difference. First operand 1902 states and 2733 transitions. Second operand has 5 states, 5 states have (on average 6.4) internal successors, (32), 4 states have internal predecessors, (32), 2 states have call successors, (11), 3 states have call predecessors, (11), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-10-17 10:12:44,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:12:44,994 INFO L93 Difference]: Finished difference Result 1908 states and 2738 transitions. [2022-10-17 10:12:44,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-17 10:12:44,995 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.4) internal successors, (32), 4 states have internal predecessors, (32), 2 states have call successors, (11), 3 states have call predecessors, (11), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 66 [2022-10-17 10:12:44,995 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 10:12:45,016 INFO L225 Difference]: With dead ends: 1908 [2022-10-17 10:12:45,017 INFO L226 Difference]: Without dead ends: 1906 [2022-10-17 10:12:45,020 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-10-17 10:12:45,023 INFO L413 NwaCegarLoop]: 2724 mSDtfsCounter, 2691 mSDsluCounter, 5427 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2701 SdHoareTripleChecker+Valid, 8151 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-17 10:12:45,024 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2701 Valid, 8151 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-17 10:12:45,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1906 states. [2022-10-17 10:12:45,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1906 to 1906. [2022-10-17 10:12:45,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1906 states, 1178 states have (on average 1.2521222410865875) internal successors, (1475), 1211 states have internal predecessors, (1475), 632 states have call successors, (632), 94 states have call predecessors, (632), 93 states have return successors, (629), 617 states have call predecessors, (629), 629 states have call successors, (629) [2022-10-17 10:12:45,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1906 states to 1906 states and 2736 transitions. [2022-10-17 10:12:45,267 INFO L78 Accepts]: Start accepts. Automaton has 1906 states and 2736 transitions. Word has length 66 [2022-10-17 10:12:45,270 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 10:12:45,270 INFO L495 AbstractCegarLoop]: Abstraction has 1906 states and 2736 transitions. [2022-10-17 10:12:45,271 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.4) internal successors, (32), 4 states have internal predecessors, (32), 2 states have call successors, (11), 3 states have call predecessors, (11), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-10-17 10:12:45,271 INFO L276 IsEmpty]: Start isEmpty. Operand 1906 states and 2736 transitions. [2022-10-17 10:12:45,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2022-10-17 10:12:45,279 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:12:45,279 INFO L195 NwaCegarLoop]: trace histogram [5, 4, 4, 3, 3, 3, 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] [2022-10-17 10:12:45,279 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-10-17 10:12:45,279 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-10-17 10:12:45,280 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:12:45,280 INFO L85 PathProgramCache]: Analyzing trace with hash -503190769, now seen corresponding path program 1 times [2022-10-17 10:12:45,280 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:12:45,280 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [122681999] [2022-10-17 10:12:45,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:12:45,281 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:12:45,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:12:45,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-17 10:12:45,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:12:45,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-10-17 10:12:45,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:12:45,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-10-17 10:12:45,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:12:45,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 10:12:45,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:12:45,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-10-17 10:12:45,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:12:45,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-10-17 10:12:45,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:12:45,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-10-17 10:12:45,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:12:45,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-10-17 10:12:45,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:12:45,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-10-17 10:12:45,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:12:45,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-10-17 10:12:45,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:12:45,689 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2022-10-17 10:12:45,690 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:12:45,690 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [122681999] [2022-10-17 10:12:45,690 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [122681999] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:12:45,691 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:12:45,691 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-17 10:12:45,691 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1644552051] [2022-10-17 10:12:45,691 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:12:45,693 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-17 10:12:45,693 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:12:45,694 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-17 10:12:45,694 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-17 10:12:45,695 INFO L87 Difference]: Start difference. First operand 1906 states and 2736 transitions. Second operand has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 3 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2022-10-17 10:12:46,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:12:46,610 INFO L93 Difference]: Finished difference Result 5674 states and 8210 transitions. [2022-10-17 10:12:46,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-17 10:12:46,611 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 3 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) Word has length 80 [2022-10-17 10:12:46,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 10:12:46,669 INFO L225 Difference]: With dead ends: 5674 [2022-10-17 10:12:46,669 INFO L226 Difference]: Without dead ends: 3789 [2022-10-17 10:12:46,697 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-17 10:12:46,698 INFO L413 NwaCegarLoop]: 3358 mSDtfsCounter, 2680 mSDsluCounter, 2658 mSDsCounter, 0 mSdLazyCounter, 87 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2680 SdHoareTripleChecker+Valid, 6016 SdHoareTripleChecker+Invalid, 128 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 87 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-17 10:12:46,698 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2680 Valid, 6016 Invalid, 128 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 87 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-17 10:12:46,707 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3789 states. [2022-10-17 10:12:47,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3789 to 3740. [2022-10-17 10:12:47,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3740 states, 2309 states have (on average 1.2442615851017758) internal successors, (2873), 2372 states have internal predecessors, (2873), 1247 states have call successors, (1247), 182 states have call predecessors, (1247), 181 states have return successors, (1273), 1219 states have call predecessors, (1273), 1244 states have call successors, (1273) [2022-10-17 10:12:47,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3740 states to 3740 states and 5393 transitions. [2022-10-17 10:12:47,352 INFO L78 Accepts]: Start accepts. Automaton has 3740 states and 5393 transitions. Word has length 80 [2022-10-17 10:12:47,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 10:12:47,353 INFO L495 AbstractCegarLoop]: Abstraction has 3740 states and 5393 transitions. [2022-10-17 10:12:47,353 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 3 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2022-10-17 10:12:47,353 INFO L276 IsEmpty]: Start isEmpty. Operand 3740 states and 5393 transitions. [2022-10-17 10:12:47,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-10-17 10:12:47,355 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:12:47,355 INFO L195 NwaCegarLoop]: trace histogram [5, 4, 4, 3, 3, 3, 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] [2022-10-17 10:12:47,356 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-10-17 10:12:47,356 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-10-17 10:12:47,356 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:12:47,356 INFO L85 PathProgramCache]: Analyzing trace with hash -225404926, now seen corresponding path program 1 times [2022-10-17 10:12:47,357 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:12:47,357 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1260507367] [2022-10-17 10:12:47,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:12:47,357 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:12:47,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:12:47,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-17 10:12:47,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:12:47,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-10-17 10:12:47,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:12:47,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-10-17 10:12:47,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:12:47,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 10:12:47,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:12:47,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-10-17 10:12:47,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:12:47,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-10-17 10:12:47,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:12:47,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-10-17 10:12:47,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:12:47,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-10-17 10:12:47,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:12:47,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-10-17 10:12:47,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:12:47,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-10-17 10:12:47,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:12:47,873 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2022-10-17 10:12:47,873 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:12:47,873 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1260507367] [2022-10-17 10:12:47,874 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1260507367] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:12:47,874 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:12:47,874 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-17 10:12:47,874 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [640625896] [2022-10-17 10:12:47,874 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:12:47,875 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-17 10:12:47,875 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:12:47,876 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-17 10:12:47,876 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-17 10:12:47,877 INFO L87 Difference]: Start difference. First operand 3740 states and 5393 transitions. Second operand has 5 states, 5 states have (on average 6.4) internal successors, (32), 4 states have internal predecessors, (32), 2 states have call successors, (12), 3 states have call predecessors, (12), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-10-17 10:12:48,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:12:48,371 INFO L93 Difference]: Finished difference Result 3746 states and 5398 transitions. [2022-10-17 10:12:48,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-17 10:12:48,372 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.4) internal successors, (32), 4 states have internal predecessors, (32), 2 states have call successors, (12), 3 states have call predecessors, (12), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 71 [2022-10-17 10:12:48,372 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 10:12:48,416 INFO L225 Difference]: With dead ends: 3746 [2022-10-17 10:12:48,416 INFO L226 Difference]: Without dead ends: 3744 [2022-10-17 10:12:48,422 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-10-17 10:12:48,424 INFO L413 NwaCegarLoop]: 2724 mSDtfsCounter, 2691 mSDsluCounter, 5427 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2700 SdHoareTripleChecker+Valid, 8151 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-17 10:12:48,425 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2700 Valid, 8151 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-17 10:12:48,433 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3744 states. [2022-10-17 10:12:49,022 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3744 to 3744. [2022-10-17 10:12:49,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3744 states, 2312 states have (on average 1.2439446366782008) internal successors, (2876), 2375 states have internal predecessors, (2876), 1247 states have call successors, (1247), 183 states have call predecessors, (1247), 182 states have return successors, (1273), 1219 states have call predecessors, (1273), 1244 states have call successors, (1273) [2022-10-17 10:12:49,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3744 states to 3744 states and 5396 transitions. [2022-10-17 10:12:49,090 INFO L78 Accepts]: Start accepts. Automaton has 3744 states and 5396 transitions. Word has length 71 [2022-10-17 10:12:49,090 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 10:12:49,091 INFO L495 AbstractCegarLoop]: Abstraction has 3744 states and 5396 transitions. [2022-10-17 10:12:49,092 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.4) internal successors, (32), 4 states have internal predecessors, (32), 2 states have call successors, (12), 3 states have call predecessors, (12), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-10-17 10:12:49,092 INFO L276 IsEmpty]: Start isEmpty. Operand 3744 states and 5396 transitions. [2022-10-17 10:12:49,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2022-10-17 10:12:49,095 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:12:49,096 INFO L195 NwaCegarLoop]: trace histogram [6, 5, 5, 3, 3, 3, 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] [2022-10-17 10:12:49,096 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-10-17 10:12:49,096 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-10-17 10:12:49,097 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:12:49,097 INFO L85 PathProgramCache]: Analyzing trace with hash -92639536, now seen corresponding path program 1 times [2022-10-17 10:12:49,097 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:12:49,097 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [561828079] [2022-10-17 10:12:49,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:12:49,098 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:12:49,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:12:49,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-17 10:12:49,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:12:49,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-10-17 10:12:49,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:12:49,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-10-17 10:12:49,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:12:49,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 10:12:49,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:12:49,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-10-17 10:12:49,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:12:49,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-10-17 10:12:49,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:12:49,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-10-17 10:12:49,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:12:49,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-10-17 10:12:49,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:12:49,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-10-17 10:12:49,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:12:49,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-10-17 10:12:49,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:12:49,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-10-17 10:12:49,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:12:49,566 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-10-17 10:12:49,567 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:12:49,567 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [561828079] [2022-10-17 10:12:49,567 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [561828079] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:12:49,567 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:12:49,568 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-17 10:12:49,568 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [526552410] [2022-10-17 10:12:49,568 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:12:49,569 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-17 10:12:49,570 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:12:49,570 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-17 10:12:49,570 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-17 10:12:49,571 INFO L87 Difference]: Start difference. First operand 3744 states and 5396 transitions. Second operand has 5 states, 5 states have (on average 8.2) internal successors, (41), 4 states have internal predecessors, (41), 2 states have call successors, (13), 3 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-10-17 10:12:50,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:12:50,155 INFO L93 Difference]: Finished difference Result 3750 states and 5401 transitions. [2022-10-17 10:12:50,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-17 10:12:50,156 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.2) internal successors, (41), 4 states have internal predecessors, (41), 2 states have call successors, (13), 3 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 85 [2022-10-17 10:12:50,156 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 10:12:50,197 INFO L225 Difference]: With dead ends: 3750 [2022-10-17 10:12:50,197 INFO L226 Difference]: Without dead ends: 3748 [2022-10-17 10:12:50,201 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-10-17 10:12:50,202 INFO L413 NwaCegarLoop]: 2724 mSDtfsCounter, 2682 mSDsluCounter, 5427 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2690 SdHoareTripleChecker+Valid, 8151 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-17 10:12:50,203 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2690 Valid, 8151 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-17 10:12:50,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3748 states. [2022-10-17 10:12:50,734 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3748 to 3748. [2022-10-17 10:12:50,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3748 states, 2315 states have (on average 1.2436285097192226) internal successors, (2879), 2378 states have internal predecessors, (2879), 1247 states have call successors, (1247), 184 states have call predecessors, (1247), 183 states have return successors, (1273), 1219 states have call predecessors, (1273), 1244 states have call successors, (1273) [2022-10-17 10:12:50,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3748 states to 3748 states and 5399 transitions. [2022-10-17 10:12:50,780 INFO L78 Accepts]: Start accepts. Automaton has 3748 states and 5399 transitions. Word has length 85 [2022-10-17 10:12:50,781 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 10:12:50,781 INFO L495 AbstractCegarLoop]: Abstraction has 3748 states and 5399 transitions. [2022-10-17 10:12:50,781 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.2) internal successors, (41), 4 states have internal predecessors, (41), 2 states have call successors, (13), 3 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-10-17 10:12:50,782 INFO L276 IsEmpty]: Start isEmpty. Operand 3748 states and 5399 transitions. [2022-10-17 10:12:50,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2022-10-17 10:12:50,784 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:12:50,784 INFO L195 NwaCegarLoop]: trace histogram [7, 6, 6, 3, 3, 3, 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] [2022-10-17 10:12:50,784 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-10-17 10:12:50,784 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-10-17 10:12:50,785 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:12:50,785 INFO L85 PathProgramCache]: Analyzing trace with hash 2125134385, now seen corresponding path program 1 times [2022-10-17 10:12:50,785 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:12:50,786 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1560057440] [2022-10-17 10:12:50,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:12:50,786 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:12:50,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:12:51,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-17 10:12:51,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:12:51,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-10-17 10:12:51,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:12:51,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-10-17 10:12:51,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:12:51,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 10:12:51,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:12:51,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-10-17 10:12:51,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:12:51,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-10-17 10:12:51,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:12:51,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-10-17 10:12:51,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:12:51,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-10-17 10:12:51,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:12:51,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-10-17 10:12:51,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:12:51,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-10-17 10:12:51,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:12:51,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-10-17 10:12:51,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:12:51,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2022-10-17 10:12:51,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:12:51,323 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2022-10-17 10:12:51,324 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:12:51,324 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1560057440] [2022-10-17 10:12:51,324 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1560057440] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:12:51,325 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:12:51,325 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-17 10:12:51,325 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1843962490] [2022-10-17 10:12:51,325 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:12:51,326 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-17 10:12:51,326 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:12:51,327 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-17 10:12:51,327 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-17 10:12:51,327 INFO L87 Difference]: Start difference. First operand 3748 states and 5399 transitions. Second operand has 5 states, 5 states have (on average 8.2) internal successors, (41), 4 states have internal predecessors, (41), 2 states have call successors, (14), 3 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-10-17 10:12:51,925 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:12:51,925 INFO L93 Difference]: Finished difference Result 3754 states and 5404 transitions. [2022-10-17 10:12:51,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-17 10:12:51,926 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.2) internal successors, (41), 4 states have internal predecessors, (41), 2 states have call successors, (14), 3 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 90 [2022-10-17 10:12:51,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 10:12:51,970 INFO L225 Difference]: With dead ends: 3754 [2022-10-17 10:12:51,970 INFO L226 Difference]: Without dead ends: 3752 [2022-10-17 10:12:51,975 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-10-17 10:12:51,976 INFO L413 NwaCegarLoop]: 2724 mSDtfsCounter, 2682 mSDsluCounter, 5427 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2689 SdHoareTripleChecker+Valid, 8151 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-17 10:12:51,976 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2689 Valid, 8151 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-17 10:12:51,985 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3752 states. [2022-10-17 10:12:52,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3752 to 3752. [2022-10-17 10:12:52,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3752 states, 2318 states have (on average 1.2433132010353753) internal successors, (2882), 2381 states have internal predecessors, (2882), 1247 states have call successors, (1247), 185 states have call predecessors, (1247), 184 states have return successors, (1273), 1219 states have call predecessors, (1273), 1244 states have call successors, (1273) [2022-10-17 10:12:52,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3752 states to 3752 states and 5402 transitions. [2022-10-17 10:12:52,535 INFO L78 Accepts]: Start accepts. Automaton has 3752 states and 5402 transitions. Word has length 90 [2022-10-17 10:12:52,535 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 10:12:52,535 INFO L495 AbstractCegarLoop]: Abstraction has 3752 states and 5402 transitions. [2022-10-17 10:12:52,536 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.2) internal successors, (41), 4 states have internal predecessors, (41), 2 states have call successors, (14), 3 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-10-17 10:12:52,536 INFO L276 IsEmpty]: Start isEmpty. Operand 3752 states and 5402 transitions. [2022-10-17 10:12:52,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2022-10-17 10:12:52,538 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:12:52,538 INFO L195 NwaCegarLoop]: trace histogram [8, 7, 7, 3, 3, 3, 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] [2022-10-17 10:12:52,538 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-10-17 10:12:52,539 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-10-17 10:12:52,581 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:12:52,582 INFO L85 PathProgramCache]: Analyzing trace with hash -1671387617, now seen corresponding path program 1 times [2022-10-17 10:12:52,582 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:12:52,582 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [599632285] [2022-10-17 10:12:52,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:12:52,582 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:12:52,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:12:52,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-17 10:12:52,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:12:52,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-10-17 10:12:52,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:12:52,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-10-17 10:12:52,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:12:52,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 10:12:52,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:12:53,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-10-17 10:12:53,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:12:53,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-10-17 10:12:53,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:12:53,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-10-17 10:12:53,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:12:53,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-10-17 10:12:53,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:12:53,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-10-17 10:12:53,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:12:53,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-10-17 10:12:53,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:12:53,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-10-17 10:12:53,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:12:53,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-10-17 10:12:53,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:12:53,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-10-17 10:12:53,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:12:53,077 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2022-10-17 10:12:53,077 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:12:53,078 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [599632285] [2022-10-17 10:12:53,078 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [599632285] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:12:53,078 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:12:53,078 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-17 10:12:53,079 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1729292822] [2022-10-17 10:12:53,079 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:12:53,080 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-17 10:12:53,080 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:12:53,080 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-17 10:12:53,081 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-17 10:12:53,081 INFO L87 Difference]: Start difference. First operand 3752 states and 5402 transitions. Second operand has 5 states, 5 states have (on average 6.4) internal successors, (32), 4 states have internal predecessors, (32), 2 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-10-17 10:12:53,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:12:53,651 INFO L93 Difference]: Finished difference Result 3758 states and 5407 transitions. [2022-10-17 10:12:53,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-17 10:12:53,652 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.4) internal successors, (32), 4 states have internal predecessors, (32), 2 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 86 [2022-10-17 10:12:53,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 10:12:53,697 INFO L225 Difference]: With dead ends: 3758 [2022-10-17 10:12:53,697 INFO L226 Difference]: Without dead ends: 3756 [2022-10-17 10:12:53,701 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-10-17 10:12:53,702 INFO L413 NwaCegarLoop]: 2724 mSDtfsCounter, 2691 mSDsluCounter, 5427 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2697 SdHoareTripleChecker+Valid, 8151 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-17 10:12:53,703 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2697 Valid, 8151 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-17 10:12:53,711 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3756 states. [2022-10-17 10:12:54,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3756 to 3756. [2022-10-17 10:12:54,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3756 states, 2321 states have (on average 1.2429987074536837) internal successors, (2885), 2384 states have internal predecessors, (2885), 1247 states have call successors, (1247), 186 states have call predecessors, (1247), 185 states have return successors, (1273), 1219 states have call predecessors, (1273), 1244 states have call successors, (1273) [2022-10-17 10:12:54,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3756 states to 3756 states and 5405 transitions. [2022-10-17 10:12:54,324 INFO L78 Accepts]: Start accepts. Automaton has 3756 states and 5405 transitions. Word has length 86 [2022-10-17 10:12:54,325 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 10:12:54,325 INFO L495 AbstractCegarLoop]: Abstraction has 3756 states and 5405 transitions. [2022-10-17 10:12:54,325 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.4) internal successors, (32), 4 states have internal predecessors, (32), 2 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-10-17 10:12:54,325 INFO L276 IsEmpty]: Start isEmpty. Operand 3756 states and 5405 transitions. [2022-10-17 10:12:54,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-10-17 10:12:54,327 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:12:54,328 INFO L195 NwaCegarLoop]: trace histogram [9, 8, 8, 3, 3, 3, 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] [2022-10-17 10:12:54,328 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-10-17 10:12:54,328 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-10-17 10:12:54,329 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:12:54,329 INFO L85 PathProgramCache]: Analyzing trace with hash 2115513282, now seen corresponding path program 1 times [2022-10-17 10:12:54,329 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:12:54,329 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [703546679] [2022-10-17 10:12:54,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:12:54,330 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:12:54,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:12:54,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-17 10:12:54,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:12:54,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-10-17 10:12:54,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:12:54,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-10-17 10:12:54,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:12:54,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 10:12:54,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:12:54,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-10-17 10:12:54,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:12:54,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-10-17 10:12:54,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:12:54,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-10-17 10:12:54,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:12:54,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-10-17 10:12:54,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:12:54,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-10-17 10:12:54,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:12:54,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-10-17 10:12:54,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:12:54,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-10-17 10:12:54,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:12:54,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-10-17 10:12:54,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:12:54,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-10-17 10:12:54,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:12:54,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-10-17 10:12:54,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:12:54,809 INFO L134 CoverageAnalysis]: Checked inductivity of 143 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 127 trivial. 0 not checked. [2022-10-17 10:12:54,809 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:12:54,810 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [703546679] [2022-10-17 10:12:54,810 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [703546679] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:12:54,810 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:12:54,810 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-17 10:12:54,811 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1363187832] [2022-10-17 10:12:54,811 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:12:54,811 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-17 10:12:54,812 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:12:54,813 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-17 10:12:54,813 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-17 10:12:54,813 INFO L87 Difference]: Start difference. First operand 3756 states and 5405 transitions. Second operand has 5 states, 5 states have (on average 6.4) internal successors, (32), 4 states have internal predecessors, (32), 2 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14)