./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-can-mcp251x.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 839c364b Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67b5db0d-4eb0-4c08-b2a3-703192241024/bin/uautomizer-DrprNOufMa/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67b5db0d-4eb0-4c08-b2a3-703192241024/bin/uautomizer-DrprNOufMa/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67b5db0d-4eb0-4c08-b2a3-703192241024/bin/uautomizer-DrprNOufMa/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67b5db0d-4eb0-4c08-b2a3-703192241024/bin/uautomizer-DrprNOufMa/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-can-mcp251x.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67b5db0d-4eb0-4c08-b2a3-703192241024/bin/uautomizer-DrprNOufMa/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67b5db0d-4eb0-4c08-b2a3-703192241024/bin/uautomizer-DrprNOufMa --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 34736e16fed7ff8cc88604084fa777d707e75948c95ce657a43a86ad92782d71 --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-12-07 01:43:55,610 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-07 01:43:55,611 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-07 01:43:55,634 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-07 01:43:55,635 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-07 01:43:55,636 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-07 01:43:55,637 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-07 01:43:55,639 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-07 01:43:55,641 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-07 01:43:55,641 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-07 01:43:55,642 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-07 01:43:55,643 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-07 01:43:55,644 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-07 01:43:55,645 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-07 01:43:55,646 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-07 01:43:55,647 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-07 01:43:55,648 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-07 01:43:55,649 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-07 01:43:55,651 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-07 01:43:55,653 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-07 01:43:55,654 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-07 01:43:55,656 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-07 01:43:55,657 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-07 01:43:55,658 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-07 01:43:55,666 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-07 01:43:55,666 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-07 01:43:55,667 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-07 01:43:55,667 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-07 01:43:55,668 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-07 01:43:55,669 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-07 01:43:55,669 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-07 01:43:55,670 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-07 01:43:55,670 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-07 01:43:55,671 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-07 01:43:55,672 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-07 01:43:55,672 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-07 01:43:55,673 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-07 01:43:55,673 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-07 01:43:55,673 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-07 01:43:55,674 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-07 01:43:55,674 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-07 01:43:55,675 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67b5db0d-4eb0-4c08-b2a3-703192241024/bin/uautomizer-DrprNOufMa/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-12-07 01:43:55,700 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-07 01:43:55,701 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-07 01:43:55,701 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-07 01:43:55,701 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-07 01:43:55,702 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-07 01:43:55,702 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-07 01:43:55,703 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-07 01:43:55,703 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-07 01:43:55,703 INFO L138 SettingsManager]: * Use SBE=true [2021-12-07 01:43:55,703 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-07 01:43:55,704 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-07 01:43:55,704 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-07 01:43:55,704 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-07 01:43:55,704 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-07 01:43:55,704 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-07 01:43:55,704 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-07 01:43:55,705 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-07 01:43:55,705 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-07 01:43:55,705 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-07 01:43:55,705 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-07 01:43:55,705 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-07 01:43:55,706 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-07 01:43:55,706 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-07 01:43:55,706 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-07 01:43:55,706 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-07 01:43:55,706 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-07 01:43:55,707 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-07 01:43:55,707 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-07 01:43:55,707 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-07 01:43:55,707 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-07 01:43:55,707 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-07 01:43:55,707 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_67b5db0d-4eb0-4c08-b2a3-703192241024/bin/uautomizer-DrprNOufMa/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67b5db0d-4eb0-4c08-b2a3-703192241024/bin/uautomizer-DrprNOufMa Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 34736e16fed7ff8cc88604084fa777d707e75948c95ce657a43a86ad92782d71 [2021-12-07 01:43:55,916 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-07 01:43:55,931 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-07 01:43:55,933 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-07 01:43:55,934 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-07 01:43:55,934 INFO L275 PluginConnector]: CDTParser initialized [2021-12-07 01:43:55,935 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67b5db0d-4eb0-4c08-b2a3-703192241024/bin/uautomizer-DrprNOufMa/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-can-mcp251x.cil.i [2021-12-07 01:43:55,976 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67b5db0d-4eb0-4c08-b2a3-703192241024/bin/uautomizer-DrprNOufMa/data/1e67e8066/a88f207b42e74ce0980e5a538805adc9/FLAG8b71b63de [2021-12-07 01:43:56,568 INFO L306 CDTParser]: Found 1 translation units. [2021-12-07 01:43:56,569 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67b5db0d-4eb0-4c08-b2a3-703192241024/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-can-mcp251x.cil.i [2021-12-07 01:43:56,602 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67b5db0d-4eb0-4c08-b2a3-703192241024/bin/uautomizer-DrprNOufMa/data/1e67e8066/a88f207b42e74ce0980e5a538805adc9/FLAG8b71b63de [2021-12-07 01:43:57,029 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67b5db0d-4eb0-4c08-b2a3-703192241024/bin/uautomizer-DrprNOufMa/data/1e67e8066/a88f207b42e74ce0980e5a538805adc9 [2021-12-07 01:43:57,036 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-07 01:43:57,039 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-07 01:43:57,042 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-07 01:43:57,043 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-07 01:43:57,052 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-07 01:43:57,054 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 01:43:57" (1/1) ... [2021-12-07 01:43:57,057 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@39084418 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:43:57, skipping insertion in model container [2021-12-07 01:43:57,058 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 01:43:57" (1/1) ... [2021-12-07 01:43:57,072 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-07 01:43:57,156 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-07 01:43:58,611 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_67b5db0d-4eb0-4c08-b2a3-703192241024/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-can-mcp251x.cil.i[278128,278141] [2021-12-07 01:43:58,613 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_67b5db0d-4eb0-4c08-b2a3-703192241024/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-can-mcp251x.cil.i[278294,278307] [2021-12-07 01:43:58,613 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_67b5db0d-4eb0-4c08-b2a3-703192241024/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-can-mcp251x.cil.i[278458,278471] [2021-12-07 01:43:58,614 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_67b5db0d-4eb0-4c08-b2a3-703192241024/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-can-mcp251x.cil.i[278623,278636] [2021-12-07 01:43:58,628 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-07 01:43:58,652 INFO L203 MainTranslator]: Completed pre-run [2021-12-07 01:43:58,854 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_67b5db0d-4eb0-4c08-b2a3-703192241024/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-can-mcp251x.cil.i[278128,278141] [2021-12-07 01:43:58,855 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_67b5db0d-4eb0-4c08-b2a3-703192241024/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-can-mcp251x.cil.i[278294,278307] [2021-12-07 01:43:58,855 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_67b5db0d-4eb0-4c08-b2a3-703192241024/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-can-mcp251x.cil.i[278458,278471] [2021-12-07 01:43:58,855 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_67b5db0d-4eb0-4c08-b2a3-703192241024/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-can-mcp251x.cil.i[278623,278636] [2021-12-07 01:43:58,859 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-07 01:43:58,941 INFO L208 MainTranslator]: Completed translation [2021-12-07 01:43:58,941 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:43:58 WrapperNode [2021-12-07 01:43:58,941 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-07 01:43:58,942 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-07 01:43:58,942 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-07 01:43:58,942 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-07 01:43:58,948 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:43:58" (1/1) ... [2021-12-07 01:43:58,998 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:43:58" (1/1) ... [2021-12-07 01:43:59,121 INFO L137 Inliner]: procedures = 340, calls = 1497, calls flagged for inlining = 194, calls inlined = 177, statements flattened = 4027 [2021-12-07 01:43:59,121 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-07 01:43:59,122 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-07 01:43:59,122 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-07 01:43:59,122 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-07 01:43:59,131 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:43:58" (1/1) ... [2021-12-07 01:43:59,131 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:43:58" (1/1) ... [2021-12-07 01:43:59,149 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:43:58" (1/1) ... [2021-12-07 01:43:59,150 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:43:58" (1/1) ... [2021-12-07 01:43:59,221 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:43:58" (1/1) ... [2021-12-07 01:43:59,240 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:43:58" (1/1) ... [2021-12-07 01:43:59,269 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:43:58" (1/1) ... [2021-12-07 01:43:59,291 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-07 01:43:59,292 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-07 01:43:59,292 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-07 01:43:59,292 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-07 01:43:59,293 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:43:58" (1/1) ... [2021-12-07 01:43:59,301 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-07 01:43:59,315 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67b5db0d-4eb0-4c08-b2a3-703192241024/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 01:43:59,330 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67b5db0d-4eb0-4c08-b2a3-703192241024/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-07 01:43:59,333 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67b5db0d-4eb0-4c08-b2a3-703192241024/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-07 01:43:59,368 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-12-07 01:43:59,368 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-12-07 01:43:59,368 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-12-07 01:43:59,368 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-12-07 01:43:59,369 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-12-07 01:43:59,369 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-12-07 01:43:59,369 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2021-12-07 01:43:59,369 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2021-12-07 01:43:59,369 INFO L130 BoogieDeclarations]: Found specification of procedure spi_sync [2021-12-07 01:43:59,369 INFO L138 BoogieDeclarations]: Found implementation of procedure spi_sync [2021-12-07 01:43:59,369 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-12-07 01:43:59,369 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-12-07 01:43:59,370 INFO L130 BoogieDeclarations]: Found specification of procedure mcp251x_open_clean [2021-12-07 01:43:59,370 INFO L138 BoogieDeclarations]: Found implementation of procedure mcp251x_open_clean [2021-12-07 01:43:59,370 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2021-12-07 01:43:59,370 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2021-12-07 01:43:59,370 INFO L130 BoogieDeclarations]: Found specification of procedure devm_regulator_get [2021-12-07 01:43:59,370 INFO L138 BoogieDeclarations]: Found implementation of procedure devm_regulator_get [2021-12-07 01:43:59,370 INFO L130 BoogieDeclarations]: Found specification of procedure mcp251x_spi_trans [2021-12-07 01:43:59,371 INFO L138 BoogieDeclarations]: Found implementation of procedure mcp251x_spi_trans [2021-12-07 01:43:59,371 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_mcp251x_can_driver_exit_12_2 [2021-12-07 01:43:59,371 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_mcp251x_can_driver_exit_12_2 [2021-12-07 01:43:59,371 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_post_probe [2021-12-07 01:43:59,371 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_post_probe [2021-12-07 01:43:59,371 INFO L130 BoogieDeclarations]: Found specification of procedure mcp251x_read_reg [2021-12-07 01:43:59,371 INFO L138 BoogieDeclarations]: Found implementation of procedure mcp251x_read_reg [2021-12-07 01:43:59,371 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-07 01:43:59,372 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2021-12-07 01:43:59,372 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2021-12-07 01:43:59,372 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-07 01:43:59,372 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-12-07 01:43:59,372 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2021-12-07 01:43:59,372 INFO L130 BoogieDeclarations]: Found specification of procedure mcp251x_stop [2021-12-07 01:43:59,372 INFO L138 BoogieDeclarations]: Found implementation of procedure mcp251x_stop [2021-12-07 01:43:59,373 INFO L130 BoogieDeclarations]: Found specification of procedure mcp251x_write_bits [2021-12-07 01:43:59,373 INFO L138 BoogieDeclarations]: Found implementation of procedure mcp251x_write_bits [2021-12-07 01:43:59,373 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-12-07 01:43:59,373 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-12-07 01:43:59,373 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exit [2021-12-07 01:43:59,373 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exit [2021-12-07 01:43:59,373 INFO L130 BoogieDeclarations]: Found specification of procedure netif_rx_ni [2021-12-07 01:43:59,373 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_rx_ni [2021-12-07 01:43:59,374 INFO L130 BoogieDeclarations]: Found specification of procedure can_led_event [2021-12-07 01:43:59,374 INFO L138 BoogieDeclarations]: Found implementation of procedure can_led_event [2021-12-07 01:43:59,374 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-07 01:43:59,374 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-07 01:43:59,374 INFO L130 BoogieDeclarations]: Found specification of procedure spi_message_add_tail [2021-12-07 01:43:59,374 INFO L138 BoogieDeclarations]: Found implementation of procedure spi_message_add_tail [2021-12-07 01:43:59,374 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_pre_probe [2021-12-07 01:43:59,374 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_pre_probe [2021-12-07 01:43:59,375 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2021-12-07 01:43:59,375 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2021-12-07 01:43:59,375 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2021-12-07 01:43:59,375 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2021-12-07 01:43:59,375 INFO L130 BoogieDeclarations]: Found specification of procedure to_spi_device [2021-12-07 01:43:59,375 INFO L138 BoogieDeclarations]: Found implementation of procedure to_spi_device [2021-12-07 01:43:59,375 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2021-12-07 01:43:59,376 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2021-12-07 01:43:59,376 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2021-12-07 01:43:59,376 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2021-12-07 01:43:59,376 INFO L130 BoogieDeclarations]: Found specification of procedure close_candev [2021-12-07 01:43:59,376 INFO L138 BoogieDeclarations]: Found implementation of procedure close_candev [2021-12-07 01:43:59,376 INFO L130 BoogieDeclarations]: Found specification of procedure clk_disable_unprepare [2021-12-07 01:43:59,376 INFO L138 BoogieDeclarations]: Found implementation of procedure clk_disable_unprepare [2021-12-07 01:43:59,376 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq [2021-12-07 01:43:59,377 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq [2021-12-07 01:43:59,377 INFO L130 BoogieDeclarations]: Found specification of procedure schedule [2021-12-07 01:43:59,377 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule [2021-12-07 01:43:59,377 INFO L130 BoogieDeclarations]: Found specification of procedure clk_unprepare [2021-12-07 01:43:59,377 INFO L138 BoogieDeclarations]: Found implementation of procedure clk_unprepare [2021-12-07 01:43:59,377 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-12-07 01:43:59,377 INFO L130 BoogieDeclarations]: Found specification of procedure mcp251x_set_normal_mode [2021-12-07 01:43:59,377 INFO L138 BoogieDeclarations]: Found implementation of procedure mcp251x_set_normal_mode [2021-12-07 01:43:59,378 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2021-12-07 01:43:59,378 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2021-12-07 01:43:59,378 INFO L130 BoogieDeclarations]: Found specification of procedure mcp251x_can_remove [2021-12-07 01:43:59,378 INFO L138 BoogieDeclarations]: Found implementation of procedure mcp251x_can_remove [2021-12-07 01:43:59,378 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-12-07 01:43:59,378 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2021-12-07 01:43:59,378 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2021-12-07 01:43:59,378 INFO L130 BoogieDeclarations]: Found specification of procedure mcp251x_error_skb [2021-12-07 01:43:59,379 INFO L138 BoogieDeclarations]: Found implementation of procedure mcp251x_error_skb [2021-12-07 01:43:59,379 INFO L130 BoogieDeclarations]: Found specification of procedure mcp251x_hw_sleep [2021-12-07 01:43:59,379 INFO L138 BoogieDeclarations]: Found implementation of procedure mcp251x_hw_sleep [2021-12-07 01:43:59,379 INFO L130 BoogieDeclarations]: Found specification of procedure dma_free_attrs [2021-12-07 01:43:59,379 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_free_attrs [2021-12-07 01:43:59,379 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-07 01:43:59,379 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock [2021-12-07 01:43:59,380 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock [2021-12-07 01:43:59,380 INFO L130 BoogieDeclarations]: Found specification of procedure mcp251x_clean [2021-12-07 01:43:59,380 INFO L138 BoogieDeclarations]: Found implementation of procedure mcp251x_clean [2021-12-07 01:43:59,380 INFO L130 BoogieDeclarations]: Found specification of procedure regulator_disable [2021-12-07 01:43:59,380 INFO L138 BoogieDeclarations]: Found implementation of procedure regulator_disable [2021-12-07 01:43:59,380 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-12-07 01:43:59,380 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-12-07 01:43:59,380 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2021-12-07 01:43:59,381 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2021-12-07 01:43:59,381 INFO L130 BoogieDeclarations]: Found specification of procedure mcp251x_power_enable [2021-12-07 01:43:59,381 INFO L138 BoogieDeclarations]: Found implementation of procedure mcp251x_power_enable [2021-12-07 01:43:59,381 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlock [2021-12-07 01:43:59,381 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlock [2021-12-07 01:43:59,381 INFO L130 BoogieDeclarations]: Found specification of procedure mcp251x_can_suspend [2021-12-07 01:43:59,381 INFO L138 BoogieDeclarations]: Found implementation of procedure mcp251x_can_suspend [2021-12-07 01:43:59,381 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-07 01:43:59,382 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_mcp_lock_of_mcp251x_priv [2021-12-07 01:43:59,382 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_mcp_lock_of_mcp251x_priv [2021-12-07 01:43:59,382 INFO L130 BoogieDeclarations]: Found specification of procedure mcp251x_open [2021-12-07 01:43:59,382 INFO L138 BoogieDeclarations]: Found implementation of procedure mcp251x_open [2021-12-07 01:43:59,382 INFO L130 BoogieDeclarations]: Found specification of procedure mcp251x_can_probe [2021-12-07 01:43:59,382 INFO L138 BoogieDeclarations]: Found implementation of procedure mcp251x_can_probe [2021-12-07 01:43:59,382 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_mcp_lock_of_mcp251x_priv [2021-12-07 01:43:59,383 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_mcp_lock_of_mcp251x_priv [2021-12-07 01:43:59,383 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-12-07 01:43:59,383 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-12-07 01:43:59,383 INFO L130 BoogieDeclarations]: Found specification of procedure mcp251x_can_resume [2021-12-07 01:43:59,383 INFO L138 BoogieDeclarations]: Found implementation of procedure mcp251x_can_resume [2021-12-07 01:43:59,383 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-07 01:43:59,383 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2021-12-07 01:43:59,384 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2021-12-07 01:43:59,384 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2021-12-07 01:43:59,384 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2021-12-07 01:43:59,384 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_3 [2021-12-07 01:43:59,384 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_3 [2021-12-07 01:43:59,384 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_4 [2021-12-07 01:43:59,384 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_4 [2021-12-07 01:43:59,384 INFO L130 BoogieDeclarations]: Found specification of procedure mcp251x_hw_reset [2021-12-07 01:43:59,385 INFO L138 BoogieDeclarations]: Found implementation of procedure mcp251x_hw_reset [2021-12-07 01:43:59,385 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-07 01:43:59,385 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-12-07 01:43:59,385 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-12-07 01:43:59,385 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2021-12-07 01:43:59,385 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2021-12-07 01:43:59,385 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-07 01:43:59,385 INFO L130 BoogieDeclarations]: Found specification of procedure spi_message_init [2021-12-07 01:43:59,386 INFO L138 BoogieDeclarations]: Found implementation of procedure spi_message_init [2021-12-07 01:43:59,386 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-12-07 01:43:59,386 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-12-07 01:43:59,386 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2021-12-07 01:43:59,386 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2021-12-07 01:43:59,386 INFO L130 BoogieDeclarations]: Found specification of procedure spi_get_drvdata [2021-12-07 01:43:59,386 INFO L138 BoogieDeclarations]: Found implementation of procedure spi_get_drvdata [2021-12-07 01:43:59,386 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2021-12-07 01:43:59,387 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2021-12-07 01:43:59,387 INFO L130 BoogieDeclarations]: Found specification of procedure mcp251x_setup [2021-12-07 01:43:59,387 INFO L138 BoogieDeclarations]: Found implementation of procedure mcp251x_setup [2021-12-07 01:43:59,387 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2021-12-07 01:43:59,387 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2021-12-07 01:43:59,387 INFO L130 BoogieDeclarations]: Found specification of procedure devm_kzalloc [2021-12-07 01:43:59,387 INFO L138 BoogieDeclarations]: Found implementation of procedure devm_kzalloc [2021-12-07 01:43:59,387 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2021-12-07 01:43:59,388 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2021-12-07 01:43:59,388 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-12-07 01:43:59,388 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-12-07 01:43:59,388 INFO L130 BoogieDeclarations]: Found specification of procedure mcp251x_hw_rx [2021-12-07 01:43:59,388 INFO L138 BoogieDeclarations]: Found implementation of procedure mcp251x_hw_rx [2021-12-07 01:43:59,388 INFO L130 BoogieDeclarations]: Found specification of procedure mcp251x_is_2510 [2021-12-07 01:43:59,388 INFO L138 BoogieDeclarations]: Found implementation of procedure mcp251x_is_2510 [2021-12-07 01:43:59,388 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-07 01:43:59,389 INFO L130 BoogieDeclarations]: Found specification of procedure free_candev [2021-12-07 01:43:59,389 INFO L138 BoogieDeclarations]: Found implementation of procedure free_candev [2021-12-07 01:43:59,389 INFO L130 BoogieDeclarations]: Found specification of procedure mcp251x_write_reg [2021-12-07 01:43:59,389 INFO L138 BoogieDeclarations]: Found implementation of procedure mcp251x_write_reg [2021-12-07 01:43:59,389 INFO L130 BoogieDeclarations]: Found specification of procedure queue_work [2021-12-07 01:43:59,389 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_work [2021-12-07 01:43:59,389 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2021-12-07 01:43:59,389 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2021-12-07 01:43:59,389 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-07 01:43:59,390 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-07 01:43:59,390 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2021-12-07 01:43:59,390 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2021-12-07 01:43:59,802 INFO L236 CfgBuilder]: Building ICFG [2021-12-07 01:43:59,804 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-07 01:44:00,124 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-12-07 01:44:42,835 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-12-07 01:44:43,854 INFO L277 CfgBuilder]: Performing block encoding [2021-12-07 01:44:43,867 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-07 01:44:43,868 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-12-07 01:44:43,870 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 01:44:43 BoogieIcfgContainer [2021-12-07 01:44:43,871 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-07 01:44:43,872 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-07 01:44:43,872 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-07 01:44:43,874 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-07 01:44:43,874 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 01:43:57" (1/3) ... [2021-12-07 01:44:43,875 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56b3ca0a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 01:44:43, skipping insertion in model container [2021-12-07 01:44:43,875 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:43:58" (2/3) ... [2021-12-07 01:44:43,875 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56b3ca0a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 01:44:43, skipping insertion in model container [2021-12-07 01:44:43,875 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 01:44:43" (3/3) ... [2021-12-07 01:44:43,876 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-can-mcp251x.cil.i [2021-12-07 01:44:43,880 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-07 01:44:43,880 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2021-12-07 01:44:43,920 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-07 01:44:43,925 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-12-07 01:44:43,925 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-12-07 01:44:43,966 INFO L276 IsEmpty]: Start isEmpty. Operand has 1470 states, 1032 states have (on average 1.2848837209302326) internal successors, (1326), 1055 states have internal predecessors, (1326), 359 states have call successors, (359), 77 states have call predecessors, (359), 76 states have return successors, (350), 344 states have call predecessors, (350), 350 states have call successors, (350) [2021-12-07 01:44:43,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2021-12-07 01:44:43,982 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 01:44:43,982 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 11, 11, 11, 11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 01:44:43,983 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-07 01:44:43,987 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:44:43,987 INFO L85 PathProgramCache]: Analyzing trace with hash -809802598, now seen corresponding path program 1 times [2021-12-07 01:44:43,994 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:44:43,994 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [149289140] [2021-12-07 01:44:43,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:44:43,995 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:44:44,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:44:44,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-07 01:44:44,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:44:44,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:44:44,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:44:44,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-07 01:44:44,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:44:44,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:44:44,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:44:44,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-07 01:44:44,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:44:44,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:44:44,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:44:44,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-07 01:44:44,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:44:44,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:44:44,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:44:44,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-07 01:44:44,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:44:44,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:44:44,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:44:44,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-07 01:44:44,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:44:44,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:44:44,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:44:44,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-07 01:44:44,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:44:44,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:44:44,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:44:44,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-07 01:44:44,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:44:44,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:44:44,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:44:44,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-07 01:44:44,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:44:44,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:44:44,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:44:44,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-07 01:44:44,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:44:44,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:44:44,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:44:44,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-07 01:44:44,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:44:44,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:44:44,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:44:44,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-12-07 01:44:44,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:44:44,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-12-07 01:44:44,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:44:44,967 INFO L134 CoverageAnalysis]: Checked inductivity of 528 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 528 trivial. 0 not checked. [2021-12-07 01:44:44,967 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 01:44:44,968 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [149289140] [2021-12-07 01:44:44,968 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [149289140] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 01:44:44,968 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 01:44:44,968 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-07 01:44:44,970 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [347086933] [2021-12-07 01:44:44,970 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 01:44:44,973 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-07 01:44:44,973 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 01:44:44,993 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-07 01:44:44,993 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-07 01:44:44,998 INFO L87 Difference]: Start difference. First operand has 1470 states, 1032 states have (on average 1.2848837209302326) internal successors, (1326), 1055 states have internal predecessors, (1326), 359 states have call successors, (359), 77 states have call predecessors, (359), 76 states have return successors, (350), 344 states have call predecessors, (350), 350 states have call successors, (350) Second operand has 4 states, 4 states have (on average 9.25) internal successors, (37), 3 states have internal predecessors, (37), 3 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2021-12-07 01:44:47,068 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 01:44:49,300 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.23s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 01:44:55,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 01:44:55,530 INFO L93 Difference]: Finished difference Result 4247 states and 6075 transitions. [2021-12-07 01:44:55,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-07 01:44:55,532 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 3 states have internal predecessors, (37), 3 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 149 [2021-12-07 01:44:55,533 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 01:44:55,562 INFO L225 Difference]: With dead ends: 4247 [2021-12-07 01:44:55,562 INFO L226 Difference]: Without dead ends: 2786 [2021-12-07 01:44:55,573 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-07 01:44:55,576 INFO L933 BasicCegarLoop]: 2224 mSDtfsCounter, 2267 mSDsluCounter, 2669 mSDsCounter, 0 mSdLazyCounter, 1013 mSolverCounterSat, 927 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2500 SdHoareTripleChecker+Valid, 4893 SdHoareTripleChecker+Invalid, 1942 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 927 IncrementalHoareTripleChecker+Valid, 1013 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.2s IncrementalHoareTripleChecker+Time [2021-12-07 01:44:55,577 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2500 Valid, 4893 Invalid, 1942 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [927 Valid, 1013 Invalid, 2 Unknown, 0 Unchecked, 10.2s Time] [2021-12-07 01:44:55,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2786 states. [2021-12-07 01:44:55,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2786 to 2723. [2021-12-07 01:44:55,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2723 states, 1926 states have (on average 1.2725856697819315) internal successors, (2451), 1973 states have internal predecessors, (2451), 645 states have call successors, (645), 149 states have call predecessors, (645), 149 states have return successors, (735), 623 states have call predecessors, (735), 641 states have call successors, (735) [2021-12-07 01:44:55,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2723 states to 2723 states and 3831 transitions. [2021-12-07 01:44:55,775 INFO L78 Accepts]: Start accepts. Automaton has 2723 states and 3831 transitions. Word has length 149 [2021-12-07 01:44:55,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 01:44:55,776 INFO L470 AbstractCegarLoop]: Abstraction has 2723 states and 3831 transitions. [2021-12-07 01:44:55,776 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 3 states have internal predecessors, (37), 3 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2021-12-07 01:44:55,776 INFO L276 IsEmpty]: Start isEmpty. Operand 2723 states and 3831 transitions. [2021-12-07 01:44:55,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2021-12-07 01:44:55,781 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 01:44:55,781 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 11, 11, 11, 11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 01:44:55,781 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-07 01:44:55,781 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-07 01:44:55,782 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:44:55,782 INFO L85 PathProgramCache]: Analyzing trace with hash -692997161, now seen corresponding path program 1 times [2021-12-07 01:44:55,782 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:44:55,782 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1954336486] [2021-12-07 01:44:55,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:44:55,782 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:44:55,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:44:56,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-07 01:44:56,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:44:56,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:44:56,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:44:56,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-07 01:44:56,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:44:56,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:44:56,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:44:56,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-07 01:44:56,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:44:56,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:44:56,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:44:56,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-07 01:44:56,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:44:56,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:44:56,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:44:56,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-07 01:44:56,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:44:56,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:44:56,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:44:56,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-07 01:44:56,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:44:56,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:44:56,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:44:56,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-07 01:44:56,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:44:56,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:44:56,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:44:56,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-07 01:44:56,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:44:56,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:44:56,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:44:56,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-07 01:44:56,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:44:56,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:44:56,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:44:56,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-07 01:44:56,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:44:56,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:44:56,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:44:56,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-07 01:44:56,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:44:56,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:44:56,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:44:56,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-12-07 01:44:56,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:44:56,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2021-12-07 01:44:56,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:44:56,318 INFO L134 CoverageAnalysis]: Checked inductivity of 528 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 528 trivial. 0 not checked. [2021-12-07 01:44:56,318 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 01:44:56,319 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1954336486] [2021-12-07 01:44:56,319 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1954336486] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 01:44:56,319 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 01:44:56,319 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-07 01:44:56,319 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [139797709] [2021-12-07 01:44:56,320 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 01:44:56,321 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-07 01:44:56,321 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 01:44:56,322 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-07 01:44:56,322 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-07 01:44:56,322 INFO L87 Difference]: Start difference. First operand 2723 states and 3831 transitions. Second operand has 4 states, 4 states have (on average 9.75) internal successors, (39), 3 states have internal predecessors, (39), 3 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2021-12-07 01:44:58,385 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 01:45:00,637 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.25s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 01:45:07,024 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 01:45:07,024 INFO L93 Difference]: Finished difference Result 8064 states and 11381 transitions. [2021-12-07 01:45:07,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-07 01:45:07,025 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 3 states have internal predecessors, (39), 3 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 151 [2021-12-07 01:45:07,026 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 01:45:07,060 INFO L225 Difference]: With dead ends: 8064 [2021-12-07 01:45:07,060 INFO L226 Difference]: Without dead ends: 5368 [2021-12-07 01:45:07,073 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-07 01:45:07,074 INFO L933 BasicCegarLoop]: 2178 mSDtfsCounter, 2323 mSDsluCounter, 2615 mSDsCounter, 0 mSdLazyCounter, 1033 mSolverCounterSat, 893 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2576 SdHoareTripleChecker+Valid, 4793 SdHoareTripleChecker+Invalid, 1928 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 893 IncrementalHoareTripleChecker+Valid, 1033 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.4s IncrementalHoareTripleChecker+Time [2021-12-07 01:45:07,075 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2576 Valid, 4793 Invalid, 1928 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [893 Valid, 1033 Invalid, 2 Unknown, 0 Unchecked, 10.4s Time] [2021-12-07 01:45:07,083 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5368 states. [2021-12-07 01:45:07,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5368 to 5276. [2021-12-07 01:45:07,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5276 states, 3744 states have (on average 1.2732371794871795) internal successors, (4767), 3830 states have internal predecessors, (4767), 1234 states have call successors, (1234), 294 states have call predecessors, (1234), 295 states have return successors, (1418), 1197 states have call predecessors, (1418), 1230 states have call successors, (1418) [2021-12-07 01:45:07,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5276 states to 5276 states and 7419 transitions. [2021-12-07 01:45:07,288 INFO L78 Accepts]: Start accepts. Automaton has 5276 states and 7419 transitions. Word has length 151 [2021-12-07 01:45:07,288 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 01:45:07,289 INFO L470 AbstractCegarLoop]: Abstraction has 5276 states and 7419 transitions. [2021-12-07 01:45:07,289 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 3 states have internal predecessors, (39), 3 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2021-12-07 01:45:07,289 INFO L276 IsEmpty]: Start isEmpty. Operand 5276 states and 7419 transitions. [2021-12-07 01:45:07,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2021-12-07 01:45:07,293 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 01:45:07,293 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 11, 11, 11, 11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 01:45:07,293 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-07 01:45:07,293 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-07 01:45:07,294 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:45:07,294 INFO L85 PathProgramCache]: Analyzing trace with hash -725158502, now seen corresponding path program 1 times [2021-12-07 01:45:07,294 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:45:07,294 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1441852629] [2021-12-07 01:45:07,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:45:07,294 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:45:07,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:45:07,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-07 01:45:07,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:45:07,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:45:07,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:45:07,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-07 01:45:07,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:45:07,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:45:07,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:45:07,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-07 01:45:07,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:45:07,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:45:07,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:45:07,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-07 01:45:07,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:45:07,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:45:07,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:45:07,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-07 01:45:07,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:45:07,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:45:07,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:45:07,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-07 01:45:07,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:45:07,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:45:07,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:45:07,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-07 01:45:07,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:45:07,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:45:07,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:45:07,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-07 01:45:07,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:45:07,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:45:07,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:45:07,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-07 01:45:07,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:45:07,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:45:07,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:45:07,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-07 01:45:07,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:45:07,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:45:07,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:45:07,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-07 01:45:07,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:45:07,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:45:07,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:45:07,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-12-07 01:45:07,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:45:07,823 INFO L134 CoverageAnalysis]: Checked inductivity of 528 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 528 trivial. 0 not checked. [2021-12-07 01:45:07,823 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 01:45:07,823 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1441852629] [2021-12-07 01:45:07,823 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1441852629] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 01:45:07,824 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 01:45:07,824 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-07 01:45:07,824 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1740569060] [2021-12-07 01:45:07,824 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 01:45:07,824 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-07 01:45:07,825 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 01:45:07,825 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-07 01:45:07,825 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-07 01:45:07,825 INFO L87 Difference]: Start difference. First operand 5276 states and 7419 transitions. Second operand has 4 states, 4 states have (on average 10.0) internal successors, (40), 3 states have internal predecessors, (40), 3 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2021-12-07 01:45:09,886 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 01:45:12,141 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.25s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 01:45:19,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 01:45:19,177 INFO L93 Difference]: Finished difference Result 15278 states and 21428 transitions. [2021-12-07 01:45:19,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-07 01:45:19,178 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 3 states have internal predecessors, (40), 3 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 151 [2021-12-07 01:45:19,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 01:45:19,234 INFO L225 Difference]: With dead ends: 15278 [2021-12-07 01:45:19,234 INFO L226 Difference]: Without dead ends: 10029 [2021-12-07 01:45:19,259 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-07 01:45:19,259 INFO L933 BasicCegarLoop]: 2177 mSDtfsCounter, 2126 mSDsluCounter, 2570 mSDsCounter, 0 mSdLazyCounter, 1126 mSolverCounterSat, 914 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2359 SdHoareTripleChecker+Valid, 4747 SdHoareTripleChecker+Invalid, 2042 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 914 IncrementalHoareTripleChecker+Valid, 1126 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.0s IncrementalHoareTripleChecker+Time [2021-12-07 01:45:19,260 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2359 Valid, 4747 Invalid, 2042 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [914 Valid, 1126 Invalid, 2 Unknown, 0 Unchecked, 11.0s Time] [2021-12-07 01:45:19,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10029 states. [2021-12-07 01:45:19,554 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10029 to 9828. [2021-12-07 01:45:19,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9828 states, 6918 states have (on average 1.2643827695865857) internal successors, (8747), 7096 states have internal predecessors, (8747), 2322 states have call successors, (2322), 582 states have call predecessors, (2322), 585 states have return successors, (2554), 2241 states have call predecessors, (2554), 2318 states have call successors, (2554) [2021-12-07 01:45:19,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9828 states to 9828 states and 13623 transitions. [2021-12-07 01:45:19,604 INFO L78 Accepts]: Start accepts. Automaton has 9828 states and 13623 transitions. Word has length 151 [2021-12-07 01:45:19,604 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 01:45:19,605 INFO L470 AbstractCegarLoop]: Abstraction has 9828 states and 13623 transitions. [2021-12-07 01:45:19,605 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 3 states have internal predecessors, (40), 3 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2021-12-07 01:45:19,605 INFO L276 IsEmpty]: Start isEmpty. Operand 9828 states and 13623 transitions. [2021-12-07 01:45:19,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2021-12-07 01:45:19,607 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 01:45:19,607 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 11, 11, 11, 11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 01:45:19,607 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-07 01:45:19,607 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-07 01:45:19,607 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:45:19,607 INFO L85 PathProgramCache]: Analyzing trace with hash -500577410, now seen corresponding path program 1 times [2021-12-07 01:45:19,608 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:45:19,608 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1416331725] [2021-12-07 01:45:19,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:45:19,608 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:45:19,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:45:19,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-07 01:45:19,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:45:19,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:45:19,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:45:19,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-07 01:45:19,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:45:19,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:45:19,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:45:19,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-07 01:45:19,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:45:19,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:45:19,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:45:19,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-07 01:45:19,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:45:19,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:45:19,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:45:19,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-07 01:45:19,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:45:19,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:45:19,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:45:19,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-07 01:45:19,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:45:19,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:45:19,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:45:19,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-07 01:45:19,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:45:20,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:45:20,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:45:20,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-07 01:45:20,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:45:20,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:45:20,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:45:20,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-07 01:45:20,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:45:20,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:45:20,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:45:20,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-07 01:45:20,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:45:20,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:45:20,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:45:20,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-07 01:45:20,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:45:20,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:45:20,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:45:20,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-12-07 01:45:20,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:45:20,048 INFO L134 CoverageAnalysis]: Checked inductivity of 528 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 528 trivial. 0 not checked. [2021-12-07 01:45:20,048 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 01:45:20,048 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1416331725] [2021-12-07 01:45:20,048 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1416331725] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 01:45:20,048 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 01:45:20,048 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-07 01:45:20,048 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1963051697] [2021-12-07 01:45:20,049 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 01:45:20,049 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-07 01:45:20,049 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 01:45:20,049 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-07 01:45:20,049 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-07 01:45:20,050 INFO L87 Difference]: Start difference. First operand 9828 states and 13623 transitions. Second operand has 4 states, 4 states have (on average 10.25) internal successors, (41), 3 states have internal predecessors, (41), 3 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2021-12-07 01:45:22,096 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 01:45:24,354 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.26s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 01:45:26,465 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 01:45:32,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 01:45:32,309 INFO L93 Difference]: Finished difference Result 23932 states and 33114 transitions. [2021-12-07 01:45:32,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-07 01:45:32,310 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.25) internal successors, (41), 3 states have internal predecessors, (41), 3 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 152 [2021-12-07 01:45:32,310 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 01:45:32,382 INFO L225 Difference]: With dead ends: 23932 [2021-12-07 01:45:32,382 INFO L226 Difference]: Without dead ends: 14131 [2021-12-07 01:45:32,417 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-07 01:45:32,418 INFO L933 BasicCegarLoop]: 2187 mSDtfsCounter, 2256 mSDsluCounter, 2626 mSDsCounter, 0 mSdLazyCounter, 1060 mSolverCounterSat, 912 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2502 SdHoareTripleChecker+Valid, 4813 SdHoareTripleChecker+Invalid, 1974 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 912 IncrementalHoareTripleChecker+Valid, 1060 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.8s IncrementalHoareTripleChecker+Time [2021-12-07 01:45:32,418 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2502 Valid, 4813 Invalid, 1974 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [912 Valid, 1060 Invalid, 2 Unknown, 0 Unchecked, 11.8s Time] [2021-12-07 01:45:32,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14131 states. [2021-12-07 01:45:32,790 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14131 to 13894. [2021-12-07 01:45:32,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13894 states, 9762 states have (on average 1.2551731202622414) internal successors, (12253), 10022 states have internal predecessors, (12253), 3258 states have call successors, (3258), 866 states have call predecessors, (3258), 871 states have return successors, (3568), 3127 states have call predecessors, (3568), 3254 states have call successors, (3568) [2021-12-07 01:45:32,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13894 states to 13894 states and 19079 transitions. [2021-12-07 01:45:32,856 INFO L78 Accepts]: Start accepts. Automaton has 13894 states and 19079 transitions. Word has length 152 [2021-12-07 01:45:32,857 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 01:45:32,857 INFO L470 AbstractCegarLoop]: Abstraction has 13894 states and 19079 transitions. [2021-12-07 01:45:32,857 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.25) internal successors, (41), 3 states have internal predecessors, (41), 3 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2021-12-07 01:45:32,857 INFO L276 IsEmpty]: Start isEmpty. Operand 13894 states and 19079 transitions. [2021-12-07 01:45:32,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2021-12-07 01:45:32,859 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 01:45:32,859 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 11, 11, 11, 11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 01:45:32,859 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-07 01:45:32,859 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-07 01:45:32,859 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:45:32,860 INFO L85 PathProgramCache]: Analyzing trace with hash -1971282291, now seen corresponding path program 1 times [2021-12-07 01:45:32,860 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:45:32,860 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [628042488] [2021-12-07 01:45:32,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:45:32,860 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:45:33,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:45:33,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-07 01:45:33,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:45:33,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:45:33,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:45:33,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-07 01:45:33,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:45:33,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:45:33,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:45:33,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-07 01:45:33,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:45:33,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:45:33,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:45:33,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-07 01:45:33,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:45:33,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:45:33,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:45:33,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-07 01:45:33,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:45:33,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:45:33,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:45:33,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-07 01:45:33,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:45:33,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:45:33,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:45:33,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-07 01:45:33,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:45:33,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:45:33,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:45:33,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-07 01:45:33,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:45:33,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:45:33,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:45:33,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-07 01:45:33,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:45:33,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:45:33,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:45:33,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-07 01:45:33,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:45:33,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:45:33,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:45:33,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-07 01:45:33,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:45:33,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:45:33,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:45:33,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-12-07 01:45:33,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:45:33,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2021-12-07 01:45:33,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:45:33,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-12-07 01:45:33,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:45:33,471 INFO L134 CoverageAnalysis]: Checked inductivity of 528 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 528 trivial. 0 not checked. [2021-12-07 01:45:33,472 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 01:45:33,472 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [628042488] [2021-12-07 01:45:33,472 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [628042488] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 01:45:33,472 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 01:45:33,472 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-07 01:45:33,472 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1018123705] [2021-12-07 01:45:33,472 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 01:45:33,473 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-07 01:45:33,473 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 01:45:33,473 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-07 01:45:33,473 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2021-12-07 01:45:33,473 INFO L87 Difference]: Start difference. First operand 13894 states and 19079 transitions. Second operand has 7 states, 6 states have (on average 7.5) internal successors, (45), 5 states have internal predecessors, (45), 3 states have call successors, (18), 3 states have call predecessors, (18), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2021-12-07 01:45:35,527 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 01:45:37,785 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.26s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 01:45:40,173 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.23s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 01:45:58,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 01:45:58,867 INFO L93 Difference]: Finished difference Result 55327 states and 76697 transitions. [2021-12-07 01:45:58,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-07 01:45:58,868 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 7.5) internal successors, (45), 5 states have internal predecessors, (45), 3 states have call successors, (18), 3 states have call predecessors, (18), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) Word has length 160 [2021-12-07 01:45:58,869 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 01:45:59,044 INFO L225 Difference]: With dead ends: 55327 [2021-12-07 01:45:59,045 INFO L226 Difference]: Without dead ends: 41460 [2021-12-07 01:45:59,079 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-12-07 01:45:59,080 INFO L933 BasicCegarLoop]: 2501 mSDtfsCounter, 6146 mSDsluCounter, 5686 mSDsCounter, 0 mSdLazyCounter, 3612 mSolverCounterSat, 2251 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 22.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6680 SdHoareTripleChecker+Valid, 8187 SdHoareTripleChecker+Invalid, 5865 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2251 IncrementalHoareTripleChecker+Valid, 3612 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 24.2s IncrementalHoareTripleChecker+Time [2021-12-07 01:45:59,080 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6680 Valid, 8187 Invalid, 5865 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2251 Valid, 3612 Invalid, 2 Unknown, 0 Unchecked, 24.2s Time] [2021-12-07 01:45:59,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41460 states. [2021-12-07 01:46:00,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41460 to 40418. [2021-12-07 01:46:00,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40418 states, 28354 states have (on average 1.2558721873457008) internal successors, (35609), 29202 states have internal predecessors, (35609), 9498 states have call successors, (9498), 2570 states have call predecessors, (9498), 2563 states have return successors, (10956), 9011 states have call predecessors, (10956), 9494 states have call successors, (10956) [2021-12-07 01:46:00,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40418 states to 40418 states and 56063 transitions. [2021-12-07 01:46:00,223 INFO L78 Accepts]: Start accepts. Automaton has 40418 states and 56063 transitions. Word has length 160 [2021-12-07 01:46:00,223 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 01:46:00,223 INFO L470 AbstractCegarLoop]: Abstraction has 40418 states and 56063 transitions. [2021-12-07 01:46:00,224 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 7.5) internal successors, (45), 5 states have internal predecessors, (45), 3 states have call successors, (18), 3 states have call predecessors, (18), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2021-12-07 01:46:00,224 INFO L276 IsEmpty]: Start isEmpty. Operand 40418 states and 56063 transitions. [2021-12-07 01:46:00,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2021-12-07 01:46:00,227 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 01:46:00,227 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 11, 11, 11, 11, 11, 11, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 01:46:00,227 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-07 01:46:00,227 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-07 01:46:00,227 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:46:00,227 INFO L85 PathProgramCache]: Analyzing trace with hash 421707479, now seen corresponding path program 1 times [2021-12-07 01:46:00,227 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:46:00,227 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [549641551] [2021-12-07 01:46:00,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:46:00,228 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:46:00,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:46:00,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-07 01:46:00,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:46:00,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:46:00,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:46:00,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-07 01:46:00,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:46:00,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:46:00,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:46:00,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-07 01:46:00,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:46:00,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:46:00,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:46:00,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-07 01:46:00,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:46:00,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:46:00,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:46:00,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-07 01:46:00,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:46:00,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:46:00,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:46:00,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-07 01:46:00,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:46:00,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:46:00,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:46:00,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-07 01:46:00,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:46:00,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:46:00,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:46:00,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-07 01:46:00,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:46:00,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:46:00,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:46:00,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-07 01:46:00,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:46:00,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:46:00,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:46:00,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-07 01:46:00,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:46:00,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:46:00,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:46:00,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-07 01:46:00,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:46:00,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:46:00,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:46:00,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-12-07 01:46:00,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:46:00,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2021-12-07 01:46:00,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:46:00,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2021-12-07 01:46:00,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:46:00,650 INFO L134 CoverageAnalysis]: Checked inductivity of 571 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 564 trivial. 0 not checked. [2021-12-07 01:46:00,650 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 01:46:00,650 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [549641551] [2021-12-07 01:46:00,650 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [549641551] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 01:46:00,650 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 01:46:00,650 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-07 01:46:00,650 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [25797365] [2021-12-07 01:46:00,651 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 01:46:00,651 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-07 01:46:00,651 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 01:46:00,651 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-07 01:46:00,651 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-07 01:46:00,651 INFO L87 Difference]: Start difference. First operand 40418 states and 56063 transitions. Second operand has 4 states, 4 states have (on average 14.75) internal successors, (59), 3 states have internal predecessors, (59), 3 states have call successors, (18), 3 states have call predecessors, (18), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2021-12-07 01:46:02,710 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 01:46:04,961 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.25s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 01:46:13,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 01:46:13,474 INFO L93 Difference]: Finished difference Result 98591 states and 136604 transitions. [2021-12-07 01:46:13,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-07 01:46:13,475 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.75) internal successors, (59), 3 states have internal predecessors, (59), 3 states have call successors, (18), 3 states have call predecessors, (18), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) Word has length 176 [2021-12-07 01:46:13,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 01:46:13,669 INFO L225 Difference]: With dead ends: 98591 [2021-12-07 01:46:13,669 INFO L226 Difference]: Without dead ends: 58200 [2021-12-07 01:46:13,751 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-07 01:46:13,752 INFO L933 BasicCegarLoop]: 2561 mSDtfsCounter, 2246 mSDsluCounter, 2880 mSDsCounter, 0 mSdLazyCounter, 1059 mSolverCounterSat, 840 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2497 SdHoareTripleChecker+Valid, 5441 SdHoareTripleChecker+Invalid, 1901 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 840 IncrementalHoareTripleChecker+Valid, 1059 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.4s IncrementalHoareTripleChecker+Time [2021-12-07 01:46:13,752 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2497 Valid, 5441 Invalid, 1901 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [840 Valid, 1059 Invalid, 2 Unknown, 0 Unchecked, 11.4s Time] [2021-12-07 01:46:13,796 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58200 states. [2021-12-07 01:46:15,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58200 to 57181. [2021-12-07 01:46:15,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57181 states, 40317 states have (on average 1.252449338988516) internal successors, (50495), 41576 states have internal predecessors, (50495), 13188 states have call successors, (13188), 3693 states have call predecessors, (13188), 3673 states have return successors, (15014), 12452 states have call predecessors, (15014), 13184 states have call successors, (15014) [2021-12-07 01:46:15,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57181 states to 57181 states and 78697 transitions. [2021-12-07 01:46:15,367 INFO L78 Accepts]: Start accepts. Automaton has 57181 states and 78697 transitions. Word has length 176 [2021-12-07 01:46:15,368 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 01:46:15,368 INFO L470 AbstractCegarLoop]: Abstraction has 57181 states and 78697 transitions. [2021-12-07 01:46:15,368 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.75) internal successors, (59), 3 states have internal predecessors, (59), 3 states have call successors, (18), 3 states have call predecessors, (18), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2021-12-07 01:46:15,368 INFO L276 IsEmpty]: Start isEmpty. Operand 57181 states and 78697 transitions. [2021-12-07 01:46:15,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2021-12-07 01:46:15,371 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 01:46:15,371 INFO L514 BasicCegarLoop]: trace histogram [15, 15, 11, 11, 11, 11, 11, 11, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 01:46:15,371 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-12-07 01:46:15,371 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-07 01:46:15,371 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:46:15,371 INFO L85 PathProgramCache]: Analyzing trace with hash -2111332940, now seen corresponding path program 1 times [2021-12-07 01:46:15,371 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:46:15,372 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1262657479] [2021-12-07 01:46:15,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:46:15,372 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:46:15,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:46:15,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-07 01:46:15,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:46:15,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:46:15,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:46:15,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-07 01:46:15,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:46:15,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:46:15,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:46:15,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-07 01:46:15,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:46:15,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:46:15,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:46:15,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-07 01:46:15,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:46:15,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:46:15,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:46:15,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-07 01:46:15,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:46:15,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:46:15,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:46:15,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-07 01:46:15,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:46:15,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:46:15,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:46:15,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-07 01:46:15,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:46:15,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:46:15,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:46:15,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-07 01:46:15,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:46:15,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:46:15,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:46:15,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-07 01:46:15,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:46:15,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:46:15,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:46:15,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-07 01:46:15,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:46:15,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:46:15,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:46:15,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-07 01:46:15,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:46:15,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:46:15,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:46:15,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-12-07 01:46:15,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:46:15,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2021-12-07 01:46:15,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:46:15,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2021-12-07 01:46:15,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:46:15,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2021-12-07 01:46:15,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:46:15,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2021-12-07 01:46:15,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:46:15,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:46:15,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:46:15,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2021-12-07 01:46:15,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:46:15,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2021-12-07 01:46:15,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:46:15,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2021-12-07 01:46:15,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:46:15,858 INFO L134 CoverageAnalysis]: Checked inductivity of 681 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 669 trivial. 0 not checked. [2021-12-07 01:46:15,859 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 01:46:15,859 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1262657479] [2021-12-07 01:46:15,859 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1262657479] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 01:46:15,859 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 01:46:15,859 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-07 01:46:15,859 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [507096436] [2021-12-07 01:46:15,859 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 01:46:15,859 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-07 01:46:15,860 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 01:46:15,860 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-07 01:46:15,860 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-07 01:46:15,860 INFO L87 Difference]: Start difference. First operand 57181 states and 78697 transitions. Second operand has 4 states, 4 states have (on average 17.0) internal successors, (68), 3 states have internal predecessors, (68), 3 states have call successors, (23), 3 states have call predecessors, (23), 1 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) [2021-12-07 01:46:17,904 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 01:46:20,162 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.26s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 01:46:25,854 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 01:46:28,323 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 01:46:32,584 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 01:46:32,585 INFO L93 Difference]: Finished difference Result 162374 states and 224641 transitions. [2021-12-07 01:46:32,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-07 01:46:32,586 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.0) internal successors, (68), 3 states have internal predecessors, (68), 3 states have call successors, (23), 3 states have call predecessors, (23), 1 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) Word has length 209 [2021-12-07 01:46:32,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 01:46:32,992 INFO L225 Difference]: With dead ends: 162374 [2021-12-07 01:46:32,992 INFO L226 Difference]: Without dead ends: 109018 [2021-12-07 01:46:33,114 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-07 01:46:33,115 INFO L933 BasicCegarLoop]: 3693 mSDtfsCounter, 1953 mSDsluCounter, 3506 mSDsCounter, 0 mSdLazyCounter, 1066 mSolverCounterSat, 577 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2201 SdHoareTripleChecker+Valid, 7199 SdHoareTripleChecker+Invalid, 1646 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 577 IncrementalHoareTripleChecker+Valid, 1066 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.4s IncrementalHoareTripleChecker+Time [2021-12-07 01:46:33,115 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2201 Valid, 7199 Invalid, 1646 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [577 Valid, 1066 Invalid, 3 Unknown, 0 Unchecked, 14.4s Time] [2021-12-07 01:46:33,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109018 states. [2021-12-07 01:46:36,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109018 to 107160. [2021-12-07 01:46:36,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 107160 states, 75644 states have (on average 1.252524985458199) internal successors, (94746), 77860 states have internal predecessors, (94746), 24628 states have call successors, (24628), 6918 states have call predecessors, (24628), 6885 states have return successors, (28278), 23422 states have call predecessors, (28278), 24624 states have call successors, (28278) [2021-12-07 01:46:36,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107160 states to 107160 states and 147652 transitions. [2021-12-07 01:46:36,644 INFO L78 Accepts]: Start accepts. Automaton has 107160 states and 147652 transitions. Word has length 209 [2021-12-07 01:46:36,644 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 01:46:36,645 INFO L470 AbstractCegarLoop]: Abstraction has 107160 states and 147652 transitions. [2021-12-07 01:46:36,645 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.0) internal successors, (68), 3 states have internal predecessors, (68), 3 states have call successors, (23), 3 states have call predecessors, (23), 1 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) [2021-12-07 01:46:36,645 INFO L276 IsEmpty]: Start isEmpty. Operand 107160 states and 147652 transitions. [2021-12-07 01:46:36,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2021-12-07 01:46:36,647 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 01:46:36,647 INFO L514 BasicCegarLoop]: trace histogram [15, 15, 11, 11, 11, 11, 11, 11, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 01:46:36,647 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-12-07 01:46:36,648 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-07 01:46:36,648 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:46:36,648 INFO L85 PathProgramCache]: Analyzing trace with hash -188104906, now seen corresponding path program 1 times [2021-12-07 01:46:36,648 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:46:36,648 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1851220180] [2021-12-07 01:46:36,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:46:36,648 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:46:36,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:46:37,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-07 01:46:37,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:46:37,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:46:37,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:46:37,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-07 01:46:37,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:46:37,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:46:37,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:46:37,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-07 01:46:37,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:46:37,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:46:37,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:46:37,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-07 01:46:37,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:46:37,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:46:37,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:46:37,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-07 01:46:37,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:46:37,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:46:37,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:46:37,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-07 01:46:37,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:46:37,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:46:37,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:46:37,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-07 01:46:37,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:46:37,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:46:37,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:46:37,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-07 01:46:37,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:46:37,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:46:37,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:46:37,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-07 01:46:37,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:46:37,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:46:37,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:46:37,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-07 01:46:37,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:46:37,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:46:37,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:46:37,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-07 01:46:37,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:46:37,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:46:37,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:46:37,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-12-07 01:46:37,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:46:37,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2021-12-07 01:46:37,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:46:37,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2021-12-07 01:46:37,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:46:37,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2021-12-07 01:46:37,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:46:37,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2021-12-07 01:46:37,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:46:37,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:46:37,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:46:37,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2021-12-07 01:46:37,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:46:37,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2021-12-07 01:46:37,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:46:37,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2021-12-07 01:46:37,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:46:37,234 INFO L134 CoverageAnalysis]: Checked inductivity of 681 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 681 trivial. 0 not checked. [2021-12-07 01:46:37,235 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 01:46:37,235 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1851220180] [2021-12-07 01:46:37,235 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1851220180] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 01:46:37,235 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 01:46:37,235 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-07 01:46:37,235 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [903326307] [2021-12-07 01:46:37,235 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 01:46:37,236 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-07 01:46:37,236 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 01:46:37,236 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-07 01:46:37,236 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-07 01:46:37,236 INFO L87 Difference]: Start difference. First operand 107160 states and 147652 transitions. Second operand has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (22), 4 states have call predecessors, (22), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2021-12-07 01:46:39,286 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 01:46:49,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 01:46:49,175 INFO L93 Difference]: Finished difference Result 109020 states and 150584 transitions. [2021-12-07 01:46:49,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-07 01:46:49,176 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (22), 4 states have call predecessors, (22), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 209 [2021-12-07 01:46:49,176 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 01:46:49,510 INFO L225 Difference]: With dead ends: 109020 [2021-12-07 01:46:49,510 INFO L226 Difference]: Without dead ends: 109018 [2021-12-07 01:46:49,544 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-12-07 01:46:49,545 INFO L933 BasicCegarLoop]: 1914 mSDtfsCounter, 2038 mSDsluCounter, 4238 mSDsCounter, 0 mSdLazyCounter, 1119 mSolverCounterSat, 582 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2229 SdHoareTripleChecker+Valid, 6152 SdHoareTripleChecker+Invalid, 1702 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 582 IncrementalHoareTripleChecker+Valid, 1119 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.3s IncrementalHoareTripleChecker+Time [2021-12-07 01:46:49,545 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2229 Valid, 6152 Invalid, 1702 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [582 Valid, 1119 Invalid, 1 Unknown, 0 Unchecked, 9.3s Time] [2021-12-07 01:46:49,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109018 states. [2021-12-07 01:46:52,283 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109018 to 107164. [2021-12-07 01:46:52,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 107164 states, 75647 states have (on average 1.2525149708514547) internal successors, (94749), 77863 states have internal predecessors, (94749), 24628 states have call successors, (24628), 6919 states have call predecessors, (24628), 6886 states have return successors, (28278), 23422 states have call predecessors, (28278), 24624 states have call successors, (28278) [2021-12-07 01:46:52,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107164 states to 107164 states and 147655 transitions. [2021-12-07 01:46:52,699 INFO L78 Accepts]: Start accepts. Automaton has 107164 states and 147655 transitions. Word has length 209 [2021-12-07 01:46:52,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 01:46:52,699 INFO L470 AbstractCegarLoop]: Abstraction has 107164 states and 147655 transitions. [2021-12-07 01:46:52,699 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (22), 4 states have call predecessors, (22), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2021-12-07 01:46:52,700 INFO L276 IsEmpty]: Start isEmpty. Operand 107164 states and 147655 transitions. [2021-12-07 01:46:52,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2021-12-07 01:46:52,702 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 01:46:52,703 INFO L514 BasicCegarLoop]: trace histogram [15, 15, 11, 11, 11, 11, 11, 11, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 01:46:52,703 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-12-07 01:46:52,703 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-07 01:46:52,703 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:46:52,703 INFO L85 PathProgramCache]: Analyzing trace with hash -2046337942, now seen corresponding path program 1 times [2021-12-07 01:46:52,703 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:46:52,703 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1289873894] [2021-12-07 01:46:52,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:46:52,704 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:46:52,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:46:53,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-07 01:46:53,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:46:53,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:46:53,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:46:53,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-07 01:46:53,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:46:53,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:46:53,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:46:53,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-07 01:46:53,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:46:53,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:46:53,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:46:53,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-07 01:46:53,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:46:53,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:46:53,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:46:53,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-07 01:46:53,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:46:53,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:46:53,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:46:53,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-07 01:46:53,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:46:53,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:46:53,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:46:53,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-07 01:46:53,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:46:53,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:46:53,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:46:53,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-07 01:46:53,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:46:53,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:46:53,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:46:53,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-07 01:46:53,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:46:53,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:46:53,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:46:53,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-07 01:46:53,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:46:53,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:46:53,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:46:53,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-07 01:46:53,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:46:53,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:46:53,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:46:53,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-12-07 01:46:53,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:46:53,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2021-12-07 01:46:53,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:46:53,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2021-12-07 01:46:53,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:46:53,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2021-12-07 01:46:53,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:46:53,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2021-12-07 01:46:53,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:46:53,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:46:53,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:46:53,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2021-12-07 01:46:53,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:46:53,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2021-12-07 01:46:53,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:46:53,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2021-12-07 01:46:53,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:46:53,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2021-12-07 01:46:53,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:46:53,315 INFO L134 CoverageAnalysis]: Checked inductivity of 683 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 681 trivial. 0 not checked. [2021-12-07 01:46:53,315 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 01:46:53,315 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1289873894] [2021-12-07 01:46:53,315 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1289873894] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 01:46:53,315 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 01:46:53,315 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-07 01:46:53,315 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1514601975] [2021-12-07 01:46:53,315 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 01:46:53,316 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-07 01:46:53,316 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 01:46:53,316 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-07 01:46:53,316 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-07 01:46:53,316 INFO L87 Difference]: Start difference. First operand 107164 states and 147655 transitions. Second operand has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (23), 4 states have call predecessors, (23), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2021-12-07 01:46:55,362 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 01:47:00,957 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 01:47:06,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 01:47:06,438 INFO L93 Difference]: Finished difference Result 109024 states and 150587 transitions. [2021-12-07 01:47:06,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-07 01:47:06,439 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (23), 4 states have call predecessors, (23), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 214 [2021-12-07 01:47:06,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 01:47:06,796 INFO L225 Difference]: With dead ends: 109024 [2021-12-07 01:47:06,796 INFO L226 Difference]: Without dead ends: 109022 [2021-12-07 01:47:06,835 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-12-07 01:47:06,836 INFO L933 BasicCegarLoop]: 1917 mSDtfsCounter, 2030 mSDsluCounter, 4238 mSDsCounter, 0 mSdLazyCounter, 1119 mSolverCounterSat, 581 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2221 SdHoareTripleChecker+Valid, 6155 SdHoareTripleChecker+Invalid, 1701 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 581 IncrementalHoareTripleChecker+Valid, 1119 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.7s IncrementalHoareTripleChecker+Time [2021-12-07 01:47:06,836 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2221 Valid, 6155 Invalid, 1701 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [581 Valid, 1119 Invalid, 1 Unknown, 0 Unchecked, 9.7s Time] [2021-12-07 01:47:06,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109022 states. [2021-12-07 01:47:09,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109022 to 107168. [2021-12-07 01:47:09,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 107168 states, 75650 states have (on average 1.2525049570389954) internal successors, (94752), 77866 states have internal predecessors, (94752), 24628 states have call successors, (24628), 6920 states have call predecessors, (24628), 6887 states have return successors, (28278), 23422 states have call predecessors, (28278), 24624 states have call successors, (28278) [2021-12-07 01:47:10,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107168 states to 107168 states and 147658 transitions. [2021-12-07 01:47:10,126 INFO L78 Accepts]: Start accepts. Automaton has 107168 states and 147658 transitions. Word has length 214 [2021-12-07 01:47:10,127 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 01:47:10,127 INFO L470 AbstractCegarLoop]: Abstraction has 107168 states and 147658 transitions. [2021-12-07 01:47:10,127 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (23), 4 states have call predecessors, (23), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2021-12-07 01:47:10,127 INFO L276 IsEmpty]: Start isEmpty. Operand 107168 states and 147658 transitions. [2021-12-07 01:47:10,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 220 [2021-12-07 01:47:10,130 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 01:47:10,130 INFO L514 BasicCegarLoop]: trace histogram [15, 15, 11, 11, 11, 11, 11, 11, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 01:47:10,130 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-12-07 01:47:10,131 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-07 01:47:10,131 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:47:10,131 INFO L85 PathProgramCache]: Analyzing trace with hash 1956444022, now seen corresponding path program 1 times [2021-12-07 01:47:10,131 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:47:10,131 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [66380236] [2021-12-07 01:47:10,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:47:10,131 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:47:10,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:47:10,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-07 01:47:10,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:47:10,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:47:10,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:47:10,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-07 01:47:10,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:47:10,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:47:10,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:47:10,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-07 01:47:10,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:47:10,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:47:10,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:47:10,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-07 01:47:10,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:47:10,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:47:10,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:47:10,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-07 01:47:10,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:47:10,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:47:10,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:47:10,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-07 01:47:10,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:47:10,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:47:10,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:47:10,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-07 01:47:10,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:47:10,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:47:10,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:47:10,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-07 01:47:10,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:47:10,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:47:10,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:47:10,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-07 01:47:10,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:47:10,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:47:10,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:47:10,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-07 01:47:10,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:47:10,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:47:10,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:47:10,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-07 01:47:10,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:47:10,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:47:10,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:47:10,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-12-07 01:47:10,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:47:10,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2021-12-07 01:47:10,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:47:10,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2021-12-07 01:47:10,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:47:10,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2021-12-07 01:47:10,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:47:10,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2021-12-07 01:47:10,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:47:10,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:47:10,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:47:10,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2021-12-07 01:47:10,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:47:10,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2021-12-07 01:47:10,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:47:10,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2021-12-07 01:47:10,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:47:10,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2021-12-07 01:47:10,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:47:10,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2021-12-07 01:47:10,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:47:10,635 INFO L134 CoverageAnalysis]: Checked inductivity of 689 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 685 trivial. 0 not checked. [2021-12-07 01:47:10,635 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 01:47:10,636 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [66380236] [2021-12-07 01:47:10,636 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [66380236] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 01:47:10,636 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 01:47:10,636 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-07 01:47:10,636 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1987195286] [2021-12-07 01:47:10,636 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 01:47:10,636 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-07 01:47:10,636 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 01:47:10,637 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-07 01:47:10,637 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-07 01:47:10,637 INFO L87 Difference]: Start difference. First operand 107168 states and 147658 transitions. Second operand has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (24), 4 states have call predecessors, (24), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2021-12-07 01:47:12,687 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 01:47:17,093 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 01:47:24,201 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 01:47:28,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 01:47:28,166 INFO L93 Difference]: Finished difference Result 121796 states and 164549 transitions. [2021-12-07 01:47:28,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-07 01:47:28,167 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (24), 4 states have call predecessors, (24), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 219 [2021-12-07 01:47:28,167 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 01:47:28,557 INFO L225 Difference]: With dead ends: 121796 [2021-12-07 01:47:28,557 INFO L226 Difference]: Without dead ends: 121792 [2021-12-07 01:47:28,605 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 68 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-12-07 01:47:28,606 INFO L933 BasicCegarLoop]: 2004 mSDtfsCounter, 1639 mSDsluCounter, 4902 mSDsCounter, 0 mSdLazyCounter, 1334 mSolverCounterSat, 564 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1784 SdHoareTripleChecker+Valid, 6906 SdHoareTripleChecker+Invalid, 1899 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 564 IncrementalHoareTripleChecker+Valid, 1334 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.7s IncrementalHoareTripleChecker+Time [2021-12-07 01:47:28,606 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1784 Valid, 6906 Invalid, 1899 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [564 Valid, 1334 Invalid, 1 Unknown, 0 Unchecked, 14.7s Time] [2021-12-07 01:47:28,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121792 states. [2021-12-07 01:47:31,833 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121792 to 119764. [2021-12-07 01:47:31,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 119764 states, 83659 states have (on average 1.241552014726449) internal successors, (103867), 85964 states have internal predecessors, (103867), 27007 states have call successors, (27007), 9171 states have call predecessors, (27007), 9095 states have return successors, (30657), 25759 states have call predecessors, (30657), 27003 states have call successors, (30657) [2021-12-07 01:47:32,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119764 states to 119764 states and 161531 transitions. [2021-12-07 01:47:32,282 INFO L78 Accepts]: Start accepts. Automaton has 119764 states and 161531 transitions. Word has length 219 [2021-12-07 01:47:32,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 01:47:32,282 INFO L470 AbstractCegarLoop]: Abstraction has 119764 states and 161531 transitions. [2021-12-07 01:47:32,282 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (24), 4 states have call predecessors, (24), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2021-12-07 01:47:32,282 INFO L276 IsEmpty]: Start isEmpty. Operand 119764 states and 161531 transitions. [2021-12-07 01:47:32,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 236 [2021-12-07 01:47:32,286 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 01:47:32,286 INFO L514 BasicCegarLoop]: trace histogram [15, 15, 11, 11, 11, 11, 11, 11, 5, 5, 5, 4, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 01:47:32,286 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-12-07 01:47:32,286 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-07 01:47:32,287 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:47:32,287 INFO L85 PathProgramCache]: Analyzing trace with hash -1353338091, now seen corresponding path program 1 times [2021-12-07 01:47:32,287 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:47:32,287 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [703147546] [2021-12-07 01:47:32,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:47:32,287 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:47:32,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:47:32,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-07 01:47:32,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:47:32,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:47:32,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:47:32,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-07 01:47:32,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:47:32,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:47:32,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:47:32,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-07 01:47:32,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:47:32,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:47:32,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:47:32,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-07 01:47:32,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:47:32,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:47:32,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:47:32,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-07 01:47:32,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:47:32,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:47:32,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:47:32,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-07 01:47:32,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:47:32,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:47:32,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:47:32,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-07 01:47:32,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:47:32,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:47:32,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:47:32,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-07 01:47:32,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:47:32,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:47:32,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:47:32,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-07 01:47:32,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:47:32,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:47:32,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:47:32,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-07 01:47:32,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:47:32,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:47:32,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:47:32,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-07 01:47:32,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:47:32,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:47:32,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:47:32,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-12-07 01:47:32,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:47:32,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2021-12-07 01:47:32,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:47:32,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2021-12-07 01:47:32,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:47:32,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2021-12-07 01:47:32,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:47:32,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2021-12-07 01:47:32,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:47:32,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:47:32,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:47:32,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2021-12-07 01:47:32,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:47:32,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2021-12-07 01:47:32,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:47:32,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2021-12-07 01:47:32,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:47:32,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2021-12-07 01:47:32,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:47:32,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-07 01:47:32,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:47:32,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2021-12-07 01:47:32,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:47:32,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2021-12-07 01:47:32,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:47:32,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2021-12-07 01:47:32,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:47:32,729 INFO L134 CoverageAnalysis]: Checked inductivity of 709 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 697 trivial. 0 not checked. [2021-12-07 01:47:32,729 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 01:47:32,729 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [703147546] [2021-12-07 01:47:32,729 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [703147546] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 01:47:32,729 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 01:47:32,729 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-07 01:47:32,729 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1788384120] [2021-12-07 01:47:32,729 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 01:47:32,730 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-07 01:47:32,730 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 01:47:32,730 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-07 01:47:32,730 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-07 01:47:32,730 INFO L87 Difference]: Start difference. First operand 119764 states and 161531 transitions. Second operand has 5 states, 5 states have (on average 15.0) internal successors, (75), 3 states have internal predecessors, (75), 3 states have call successors, (28), 4 states have call predecessors, (28), 1 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) [2021-12-07 01:47:34,940 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.21s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 01:47:37,203 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.26s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 01:47:39,460 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.26s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 01:48:04,595 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 01:48:04,596 INFO L93 Difference]: Finished difference Result 294472 states and 398245 transitions. [2021-12-07 01:48:04,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-07 01:48:04,597 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 3 states have internal predecessors, (75), 3 states have call successors, (28), 4 states have call predecessors, (28), 1 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) Word has length 235 [2021-12-07 01:48:04,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 01:48:05,262 INFO L225 Difference]: With dead ends: 294472 [2021-12-07 01:48:05,262 INFO L226 Difference]: Without dead ends: 178927 [2021-12-07 01:48:05,503 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 75 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-12-07 01:48:05,504 INFO L933 BasicCegarLoop]: 3412 mSDtfsCounter, 2452 mSDsluCounter, 3227 mSDsCounter, 0 mSdLazyCounter, 3008 mSolverCounterSat, 1634 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 23.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2722 SdHoareTripleChecker+Valid, 6639 SdHoareTripleChecker+Invalid, 4645 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1634 IncrementalHoareTripleChecker+Valid, 3008 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 26.0s IncrementalHoareTripleChecker+Time [2021-12-07 01:48:05,504 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2722 Valid, 6639 Invalid, 4645 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1634 Valid, 3008 Invalid, 3 Unknown, 0 Unchecked, 26.0s Time] [2021-12-07 01:48:05,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 178927 states. [2021-12-07 01:48:11,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 178927 to 175891. [2021-12-07 01:48:11,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 175891 states, 122912 states have (on average 1.2413759437646446) internal successors, (152580), 126218 states have internal predecessors, (152580), 39599 states have call successors, (39599), 13487 states have call predecessors, (39599), 13377 states have return successors, (45073), 37860 states have call predecessors, (45073), 39595 states have call successors, (45073) [2021-12-07 01:48:12,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175891 states to 175891 states and 237252 transitions. [2021-12-07 01:48:12,157 INFO L78 Accepts]: Start accepts. Automaton has 175891 states and 237252 transitions. Word has length 235 [2021-12-07 01:48:12,158 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 01:48:12,158 INFO L470 AbstractCegarLoop]: Abstraction has 175891 states and 237252 transitions. [2021-12-07 01:48:12,158 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 3 states have internal predecessors, (75), 3 states have call successors, (28), 4 states have call predecessors, (28), 1 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) [2021-12-07 01:48:12,158 INFO L276 IsEmpty]: Start isEmpty. Operand 175891 states and 237252 transitions. [2021-12-07 01:48:12,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 225 [2021-12-07 01:48:12,161 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 01:48:12,162 INFO L514 BasicCegarLoop]: trace histogram [15, 15, 11, 11, 11, 11, 11, 11, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 01:48:12,162 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-12-07 01:48:12,162 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-07 01:48:12,162 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:48:12,162 INFO L85 PathProgramCache]: Analyzing trace with hash -286819414, now seen corresponding path program 1 times [2021-12-07 01:48:12,162 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:48:12,162 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1575032475] [2021-12-07 01:48:12,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:48:12,162 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:48:12,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:48:12,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-07 01:48:12,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:48:12,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:48:12,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:48:12,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-07 01:48:12,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:48:12,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:48:12,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:48:12,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-07 01:48:12,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:48:12,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:48:12,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:48:12,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-07 01:48:12,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:48:12,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:48:12,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:48:12,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-07 01:48:12,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:48:12,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:48:12,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:48:12,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-07 01:48:12,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:48:12,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:48:12,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:48:12,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-07 01:48:12,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:48:12,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:48:12,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:48:12,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-07 01:48:12,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:48:12,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:48:12,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:48:12,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-07 01:48:12,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:48:12,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:48:12,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:48:12,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-07 01:48:12,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:48:12,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:48:12,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:48:12,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-07 01:48:12,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:48:12,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:48:12,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:48:12,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-12-07 01:48:12,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:48:12,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2021-12-07 01:48:12,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:48:12,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2021-12-07 01:48:12,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:48:12,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2021-12-07 01:48:12,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:48:12,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2021-12-07 01:48:12,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:48:12,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:48:12,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:48:12,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2021-12-07 01:48:12,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:48:12,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2021-12-07 01:48:12,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:48:12,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2021-12-07 01:48:12,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:48:12,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2021-12-07 01:48:12,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:48:12,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2021-12-07 01:48:12,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:48:12,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2021-12-07 01:48:12,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:48:12,682 INFO L134 CoverageAnalysis]: Checked inductivity of 699 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 693 trivial. 0 not checked. [2021-12-07 01:48:12,682 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 01:48:12,682 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1575032475] [2021-12-07 01:48:12,682 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1575032475] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 01:48:12,682 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 01:48:12,682 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-07 01:48:12,682 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [92668588] [2021-12-07 01:48:12,682 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 01:48:12,683 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-07 01:48:12,683 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 01:48:12,683 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-07 01:48:12,683 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-07 01:48:12,683 INFO L87 Difference]: Start difference. First operand 175891 states and 237252 transitions. Second operand has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (25), 4 states have call predecessors, (25), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2021-12-07 01:48:14,725 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 01:48:20,706 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.41s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 01:48:28,735 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 01:48:28,735 INFO L93 Difference]: Finished difference Result 178903 states and 241718 transitions. [2021-12-07 01:48:28,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-07 01:48:28,736 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (25), 4 states have call predecessors, (25), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 224 [2021-12-07 01:48:28,736 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 01:48:29,301 INFO L225 Difference]: With dead ends: 178903 [2021-12-07 01:48:29,302 INFO L226 Difference]: Without dead ends: 177584 [2021-12-07 01:48:29,364 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 70 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-12-07 01:48:29,364 INFO L933 BasicCegarLoop]: 1914 mSDtfsCounter, 2024 mSDsluCounter, 4238 mSDsCounter, 0 mSdLazyCounter, 1114 mSolverCounterSat, 579 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2215 SdHoareTripleChecker+Valid, 6152 SdHoareTripleChecker+Invalid, 1694 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 579 IncrementalHoareTripleChecker+Valid, 1114 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.7s IncrementalHoareTripleChecker+Time [2021-12-07 01:48:29,365 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2215 Valid, 6152 Invalid, 1694 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [579 Valid, 1114 Invalid, 1 Unknown, 0 Unchecked, 10.7s Time] [2021-12-07 01:48:29,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 177584 states. [2021-12-07 01:48:35,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 177584 to 174572. [2021-12-07 01:48:35,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 174572 states, 121940 states have (on average 1.2413318025258324) internal successors, (151368), 125102 states have internal predecessors, (151368), 39304 states have call successors, (39304), 13434 states have call predecessors, (39304), 13326 states have return successors, (44782), 37710 states have call predecessors, (44782), 39304 states have call successors, (44782) [2021-12-07 01:48:36,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174572 states to 174572 states and 235454 transitions. [2021-12-07 01:48:36,456 INFO L78 Accepts]: Start accepts. Automaton has 174572 states and 235454 transitions. Word has length 224 [2021-12-07 01:48:36,457 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 01:48:36,457 INFO L470 AbstractCegarLoop]: Abstraction has 174572 states and 235454 transitions. [2021-12-07 01:48:36,457 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (25), 4 states have call predecessors, (25), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2021-12-07 01:48:36,457 INFO L276 IsEmpty]: Start isEmpty. Operand 174572 states and 235454 transitions. [2021-12-07 01:48:36,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 259 [2021-12-07 01:48:36,463 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 01:48:36,463 INFO L514 BasicCegarLoop]: trace histogram [18, 18, 11, 11, 11, 11, 11, 11, 5, 5, 5, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 01:48:36,463 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-12-07 01:48:36,463 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-07 01:48:36,463 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:48:36,464 INFO L85 PathProgramCache]: Analyzing trace with hash -1821742700, now seen corresponding path program 1 times [2021-12-07 01:48:36,464 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:48:36,464 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1751308768] [2021-12-07 01:48:36,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:48:36,464 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:48:36,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:48:36,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-07 01:48:36,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:48:36,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:48:36,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:48:36,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-07 01:48:36,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:48:36,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:48:36,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:48:36,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-07 01:48:36,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:48:36,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:48:36,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:48:36,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-07 01:48:36,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:48:36,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:48:36,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:48:36,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-07 01:48:36,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:48:36,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:48:36,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:48:36,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-07 01:48:36,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:48:36,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:48:36,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:48:36,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-07 01:48:36,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:48:36,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:48:36,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:48:36,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-07 01:48:36,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:48:36,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:48:36,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:48:36,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-07 01:48:36,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:48:36,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:48:36,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:48:36,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-07 01:48:36,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:48:36,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:48:36,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:48:36,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-07 01:48:36,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:48:36,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:48:36,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:48:36,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-12-07 01:48:36,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:48:36,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2021-12-07 01:48:36,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:48:36,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2021-12-07 01:48:36,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:48:36,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2021-12-07 01:48:36,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:48:36,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2021-12-07 01:48:36,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:48:36,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:48:36,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:48:36,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2021-12-07 01:48:36,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:48:36,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2021-12-07 01:48:36,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:48:36,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2021-12-07 01:48:36,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:48:36,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2021-12-07 01:48:36,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:48:36,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2021-12-07 01:48:36,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:48:36,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2021-12-07 01:48:36,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:48:36,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 232 [2021-12-07 01:48:36,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:48:36,906 INFO L134 CoverageAnalysis]: Checked inductivity of 872 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 840 trivial. 0 not checked. [2021-12-07 01:48:36,907 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 01:48:36,907 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1751308768] [2021-12-07 01:48:36,907 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1751308768] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 01:48:36,907 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 01:48:36,907 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-07 01:48:36,907 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1571786990] [2021-12-07 01:48:36,907 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 01:48:36,908 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-07 01:48:36,908 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 01:48:36,908 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-07 01:48:36,908 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-07 01:48:36,908 INFO L87 Difference]: Start difference. First operand 174572 states and 235454 transitions. Second operand has 4 states, 4 states have (on average 22.5) internal successors, (90), 3 states have internal predecessors, (90), 3 states have call successors, (27), 3 states have call predecessors, (27), 1 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) [2021-12-07 01:48:38,953 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 01:48:41,221 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.27s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 01:48:44,097 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 01:48:45,714 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.62s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 01:48:46,958 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.24s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 01:48:49,871 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 01:49:00,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 01:49:00,633 INFO L93 Difference]: Finished difference Result 404764 states and 546852 transitions. [2021-12-07 01:49:00,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-07 01:49:00,634 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 22.5) internal successors, (90), 3 states have internal predecessors, (90), 3 states have call successors, (27), 3 states have call predecessors, (27), 1 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) Word has length 258 [2021-12-07 01:49:00,634 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 01:49:01,480 INFO L225 Difference]: With dead ends: 404764 [2021-12-07 01:49:01,480 INFO L226 Difference]: Without dead ends: 234267 [2021-12-07 01:49:01,866 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 72 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-07 01:49:01,866 INFO L933 BasicCegarLoop]: 3642 mSDtfsCounter, 1933 mSDsluCounter, 3485 mSDsCounter, 0 mSdLazyCounter, 1023 mSolverCounterSat, 564 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2175 SdHoareTripleChecker+Valid, 7127 SdHoareTripleChecker+Invalid, 1589 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 564 IncrementalHoareTripleChecker+Valid, 1023 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.6s IncrementalHoareTripleChecker+Time [2021-12-07 01:49:01,867 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2175 Valid, 7127 Invalid, 1589 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [564 Valid, 1023 Invalid, 2 Unknown, 0 Unchecked, 15.6s Time] [2021-12-07 01:49:02,043 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 234267 states. [2021-12-07 01:49:08,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 234267 to 174572. [2021-12-07 01:49:09,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 174572 states, 121940 states have (on average 1.2413318025258324) internal successors, (151368), 125102 states have internal predecessors, (151368), 39304 states have call successors, (39304), 13434 states have call predecessors, (39304), 13326 states have return successors, (44782), 37710 states have call predecessors, (44782), 39304 states have call successors, (44782) [2021-12-07 01:49:09,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174572 states to 174572 states and 235454 transitions. [2021-12-07 01:49:09,651 INFO L78 Accepts]: Start accepts. Automaton has 174572 states and 235454 transitions. Word has length 258 [2021-12-07 01:49:09,651 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 01:49:09,651 INFO L470 AbstractCegarLoop]: Abstraction has 174572 states and 235454 transitions. [2021-12-07 01:49:09,651 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.5) internal successors, (90), 3 states have internal predecessors, (90), 3 states have call successors, (27), 3 states have call predecessors, (27), 1 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) [2021-12-07 01:49:09,651 INFO L276 IsEmpty]: Start isEmpty. Operand 174572 states and 235454 transitions. [2021-12-07 01:49:09,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 259 [2021-12-07 01:49:09,656 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 01:49:09,656 INFO L514 BasicCegarLoop]: trace histogram [18, 18, 11, 11, 11, 11, 11, 11, 5, 5, 5, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 01:49:09,656 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-12-07 01:49:09,657 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-07 01:49:09,657 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:49:09,657 INFO L85 PathProgramCache]: Analyzing trace with hash 1992144338, now seen corresponding path program 1 times [2021-12-07 01:49:09,657 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:49:09,657 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [507008002] [2021-12-07 01:49:09,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:49:09,657 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:49:09,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:49:09,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-07 01:49:09,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:49:09,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:49:09,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:49:09,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-07 01:49:09,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:49:09,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:49:09,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:49:09,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-07 01:49:10,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:49:10,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:49:10,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:49:10,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-07 01:49:10,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:49:10,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:49:10,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:49:10,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-07 01:49:10,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:49:10,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:49:10,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:49:10,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-07 01:49:10,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:49:10,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:49:10,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:49:10,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-07 01:49:10,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:49:10,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:49:10,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:49:10,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-07 01:49:10,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:49:10,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:49:10,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:49:10,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-07 01:49:10,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:49:10,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:49:10,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:49:10,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-07 01:49:10,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:49:10,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:49:10,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:49:10,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-07 01:49:10,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:49:10,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:49:10,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:49:10,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-12-07 01:49:10,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:49:10,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2021-12-07 01:49:10,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:49:10,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2021-12-07 01:49:10,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:49:10,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2021-12-07 01:49:10,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:49:10,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2021-12-07 01:49:10,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:49:10,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:49:10,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:49:10,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2021-12-07 01:49:10,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:49:10,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2021-12-07 01:49:10,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:49:10,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2021-12-07 01:49:10,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:49:10,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2021-12-07 01:49:10,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:49:10,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2021-12-07 01:49:10,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:49:10,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2021-12-07 01:49:10,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:49:10,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 232 [2021-12-07 01:49:10,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:49:10,185 INFO L134 CoverageAnalysis]: Checked inductivity of 872 backedges. 8 proven. 13 refuted. 0 times theorem prover too weak. 851 trivial. 0 not checked. [2021-12-07 01:49:10,185 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 01:49:10,185 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [507008002] [2021-12-07 01:49:10,185 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [507008002] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-07 01:49:10,185 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [768865591] [2021-12-07 01:49:10,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:49:10,186 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-07 01:49:10,186 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67b5db0d-4eb0-4c08-b2a3-703192241024/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 01:49:10,186 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67b5db0d-4eb0-4c08-b2a3-703192241024/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-07 01:49:10,187 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67b5db0d-4eb0-4c08-b2a3-703192241024/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-12-07 01:49:11,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:49:11,111 INFO L263 TraceCheckSpWp]: Trace formula consists of 3568 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-07 01:49:11,123 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-07 01:49:11,473 INFO L134 CoverageAnalysis]: Checked inductivity of 872 backedges. 62 proven. 0 refuted. 0 times theorem prover too weak. 810 trivial. 0 not checked. [2021-12-07 01:49:11,473 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-07 01:49:11,474 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [768865591] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 01:49:11,474 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-07 01:49:11,474 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2021-12-07 01:49:11,474 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1720876809] [2021-12-07 01:49:11,474 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 01:49:11,475 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-07 01:49:11,475 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 01:49:11,475 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-07 01:49:11,476 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-12-07 01:49:11,476 INFO L87 Difference]: Start difference. First operand 174572 states and 235454 transitions. Second operand has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 3 states have call successors, (26), 3 states have call predecessors, (26), 2 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2021-12-07 01:49:13,528 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 01:49:23,442 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 01:49:23,443 INFO L93 Difference]: Finished difference Result 424462 states and 572994 transitions. [2021-12-07 01:49:23,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-07 01:49:23,444 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 3 states have call successors, (26), 3 states have call predecessors, (26), 2 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 258 [2021-12-07 01:49:23,444 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 01:49:24,378 INFO L225 Difference]: With dead ends: 424462 [2021-12-07 01:49:24,379 INFO L226 Difference]: Without dead ends: 254109 [2021-12-07 01:49:24,953 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 332 GetRequests, 328 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-12-07 01:49:24,954 INFO L933 BasicCegarLoop]: 2610 mSDtfsCounter, 1812 mSDsluCounter, 1880 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 17 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1812 SdHoareTripleChecker+Valid, 4490 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2021-12-07 01:49:24,954 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1812 Valid, 4490 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 62 Invalid, 1 Unknown, 0 Unchecked, 2.6s Time] [2021-12-07 01:49:25,137 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 254109 states. [2021-12-07 01:49:34,947 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 254109 to 253895. [2021-12-07 01:49:35,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 253895 states, 177521 states have (on average 1.2416502836284158) internal successors, (220419), 182102 states have internal predecessors, (220419), 56872 states have call successors, (56872), 19662 states have call predecessors, (56872), 19500 states have return successors, (64798), 54537 states have call predecessors, (64798), 56872 states have call successors, (64798) [2021-12-07 01:49:36,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 253895 states to 253895 states and 342089 transitions. [2021-12-07 01:49:36,248 INFO L78 Accepts]: Start accepts. Automaton has 253895 states and 342089 transitions. Word has length 258 [2021-12-07 01:49:36,248 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 01:49:36,248 INFO L470 AbstractCegarLoop]: Abstraction has 253895 states and 342089 transitions. [2021-12-07 01:49:36,248 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 3 states have call successors, (26), 3 states have call predecessors, (26), 2 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2021-12-07 01:49:36,248 INFO L276 IsEmpty]: Start isEmpty. Operand 253895 states and 342089 transitions. [2021-12-07 01:49:36,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 282 [2021-12-07 01:49:36,256 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 01:49:36,256 INFO L514 BasicCegarLoop]: trace histogram [19, 19, 11, 11, 11, 11, 11, 11, 6, 6, 6, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 01:49:36,284 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67b5db0d-4eb0-4c08-b2a3-703192241024/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-12-07 01:49:36,457 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67b5db0d-4eb0-4c08-b2a3-703192241024/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2021-12-07 01:49:36,458 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-07 01:49:36,459 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:49:36,459 INFO L85 PathProgramCache]: Analyzing trace with hash 375934132, now seen corresponding path program 1 times [2021-12-07 01:49:36,460 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:49:36,460 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1394996524] [2021-12-07 01:49:36,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:49:36,461 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:49:36,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:49:36,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-07 01:49:36,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:49:36,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:49:36,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:49:36,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-07 01:49:36,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:49:36,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:49:36,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:49:36,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-07 01:49:36,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:49:36,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:49:36,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:49:36,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-07 01:49:36,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:49:36,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:49:36,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:49:36,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-07 01:49:36,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:49:36,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:49:36,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:49:36,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-07 01:49:36,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:49:36,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:49:36,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:49:36,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-07 01:49:36,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:49:36,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:49:36,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:49:36,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-07 01:49:36,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:49:36,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:49:36,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:49:36,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-07 01:49:36,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:49:36,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:49:36,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:49:36,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-07 01:49:36,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:49:36,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:49:36,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:49:36,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-07 01:49:36,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:49:36,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:49:36,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:49:36,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-12-07 01:49:36,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:49:36,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2021-12-07 01:49:36,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:49:36,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2021-12-07 01:49:36,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:49:36,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2021-12-07 01:49:36,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:49:36,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2021-12-07 01:49:36,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:49:36,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:49:36,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:49:36,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2021-12-07 01:49:36,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:49:36,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2021-12-07 01:49:36,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:49:36,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2021-12-07 01:49:36,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:49:36,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2021-12-07 01:49:36,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:49:36,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2021-12-07 01:49:36,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:49:36,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2021-12-07 01:49:36,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:49:36,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2021-12-07 01:49:36,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:49:36,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2021-12-07 01:49:36,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:49:36,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 256 [2021-12-07 01:49:36,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:49:36,917 INFO L134 CoverageAnalysis]: Checked inductivity of 960 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 921 trivial. 0 not checked. [2021-12-07 01:49:36,917 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 01:49:36,917 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1394996524] [2021-12-07 01:49:36,917 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1394996524] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 01:49:36,917 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 01:49:36,917 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-07 01:49:36,917 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1723667462] [2021-12-07 01:49:36,917 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 01:49:36,918 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-07 01:49:36,918 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 01:49:36,918 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-07 01:49:36,918 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-07 01:49:36,918 INFO L87 Difference]: Start difference. First operand 253895 states and 342089 transitions. Second operand has 4 states, 4 states have (on average 24.75) internal successors, (99), 3 states have internal predecessors, (99), 3 states have call successors, (28), 3 states have call predecessors, (28), 1 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) [2021-12-07 01:49:38,960 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 01:49:41,233 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.27s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 01:49:48,476 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.20s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 01:50:03,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 01:50:03,415 INFO L93 Difference]: Finished difference Result 591539 states and 798403 transitions. [2021-12-07 01:50:03,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-07 01:50:03,416 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 24.75) internal successors, (99), 3 states have internal predecessors, (99), 3 states have call successors, (28), 3 states have call predecessors, (28), 1 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) Word has length 281 [2021-12-07 01:50:03,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 01:50:04,695 INFO L225 Difference]: With dead ends: 591539 [2021-12-07 01:50:04,696 INFO L226 Difference]: Without dead ends: 341863 [2021-12-07 01:50:05,309 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 76 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-07 01:50:05,310 INFO L933 BasicCegarLoop]: 3126 mSDtfsCounter, 2121 mSDsluCounter, 3252 mSDsCounter, 0 mSdLazyCounter, 1016 mSolverCounterSat, 674 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2364 SdHoareTripleChecker+Valid, 6378 SdHoareTripleChecker+Invalid, 1692 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 674 IncrementalHoareTripleChecker+Valid, 1016 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.4s IncrementalHoareTripleChecker+Time [2021-12-07 01:50:05,310 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2364 Valid, 6378 Invalid, 1692 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [674 Valid, 1016 Invalid, 2 Unknown, 0 Unchecked, 14.4s Time] [2021-12-07 01:50:05,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 341863 states. [2021-12-07 01:50:17,690 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 341863 to 336015. [2021-12-07 01:50:17,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 336015 states, 234989 states have (on average 1.2416453536122967) internal successors, (291773), 241020 states have internal predecessors, (291773), 75208 states have call successors, (75208), 26030 states have call predecessors, (75208), 25816 states have return successors, (85774), 72159 states have call predecessors, (85774), 75208 states have call successors, (85774) [2021-12-07 01:50:19,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 336015 states to 336015 states and 452755 transitions. [2021-12-07 01:50:19,425 INFO L78 Accepts]: Start accepts. Automaton has 336015 states and 452755 transitions. Word has length 281 [2021-12-07 01:50:19,425 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 01:50:19,426 INFO L470 AbstractCegarLoop]: Abstraction has 336015 states and 452755 transitions. [2021-12-07 01:50:19,426 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 24.75) internal successors, (99), 3 states have internal predecessors, (99), 3 states have call successors, (28), 3 states have call predecessors, (28), 1 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) [2021-12-07 01:50:19,426 INFO L276 IsEmpty]: Start isEmpty. Operand 336015 states and 452755 transitions. [2021-12-07 01:50:19,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 288 [2021-12-07 01:50:19,434 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 01:50:19,434 INFO L514 BasicCegarLoop]: trace histogram [20, 20, 11, 11, 11, 11, 11, 11, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 01:50:19,434 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-12-07 01:50:19,434 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-07 01:50:19,434 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:50:19,434 INFO L85 PathProgramCache]: Analyzing trace with hash -558778662, now seen corresponding path program 1 times [2021-12-07 01:50:19,435 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:50:19,435 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1003328115] [2021-12-07 01:50:19,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:50:19,435 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:50:19,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:50:19,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-07 01:50:19,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:50:19,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:50:19,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:50:19,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-07 01:50:19,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:50:19,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:50:19,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:50:19,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-07 01:50:19,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:50:19,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:50:19,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:50:19,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-07 01:50:19,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:50:19,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:50:19,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:50:19,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-07 01:50:19,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:50:19,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:50:19,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:50:19,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-07 01:50:19,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:50:19,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:50:19,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:50:19,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-07 01:50:19,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:50:19,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:50:19,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:50:19,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-07 01:50:19,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:50:19,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:50:19,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:50:19,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-07 01:50:19,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:50:19,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:50:19,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:50:19,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-07 01:50:19,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:50:19,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:50:19,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:50:19,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-07 01:50:19,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:50:19,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:50:19,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:50:19,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-12-07 01:50:19,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:50:19,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2021-12-07 01:50:19,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:50:19,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2021-12-07 01:50:19,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:50:19,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2021-12-07 01:50:19,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:50:19,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2021-12-07 01:50:19,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:50:19,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:50:19,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:50:19,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2021-12-07 01:50:19,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:50:19,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2021-12-07 01:50:19,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:50:19,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2021-12-07 01:50:19,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:50:19,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2021-12-07 01:50:19,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:50:19,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2021-12-07 01:50:19,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:50:19,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2021-12-07 01:50:19,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:50:19,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 232 [2021-12-07 01:50:19,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:50:19,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 254 [2021-12-07 01:50:19,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:50:19,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 261 [2021-12-07 01:50:19,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:50:19,877 INFO L134 CoverageAnalysis]: Checked inductivity of 1004 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 983 trivial. 0 not checked. [2021-12-07 01:50:19,878 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 01:50:19,878 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1003328115] [2021-12-07 01:50:19,878 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1003328115] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 01:50:19,878 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 01:50:19,878 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-07 01:50:19,878 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1557091626] [2021-12-07 01:50:19,878 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 01:50:19,878 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-07 01:50:19,878 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 01:50:19,879 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-07 01:50:19,879 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-07 01:50:19,879 INFO L87 Difference]: Start difference. First operand 336015 states and 452755 transitions. Second operand has 4 states, 4 states have (on average 25.0) internal successors, (100), 3 states have internal predecessors, (100), 3 states have call successors, (27), 3 states have call predecessors, (27), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2021-12-07 01:50:21,921 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 01:50:24,183 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.26s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 01:50:28,387 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.36s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 01:50:50,188 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 01:50:50,188 INFO L93 Difference]: Finished difference Result 781855 states and 1054609 transitions. [2021-12-07 01:50:50,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-07 01:50:50,188 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 25.0) internal successors, (100), 3 states have internal predecessors, (100), 3 states have call successors, (27), 3 states have call predecessors, (27), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) Word has length 287 [2021-12-07 01:50:50,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 01:50:52,102 INFO L225 Difference]: With dead ends: 781855 [2021-12-07 01:50:52,103 INFO L226 Difference]: Without dead ends: 450059 [2021-12-07 01:50:53,051 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 76 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-07 01:50:53,052 INFO L933 BasicCegarLoop]: 3433 mSDtfsCounter, 1923 mSDsluCounter, 3357 mSDsCounter, 0 mSdLazyCounter, 1052 mSolverCounterSat, 618 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2163 SdHoareTripleChecker+Valid, 6790 SdHoareTripleChecker+Invalid, 1672 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 618 IncrementalHoareTripleChecker+Valid, 1052 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.3s IncrementalHoareTripleChecker+Time [2021-12-07 01:50:53,052 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2163 Valid, 6790 Invalid, 1672 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [618 Valid, 1052 Invalid, 2 Unknown, 0 Unchecked, 14.3s Time] [2021-12-07 01:50:53,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 450059 states. [2021-12-07 01:51:09,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 450059 to 442315. [2021-12-07 01:51:09,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 442315 states, 309201 states have (on average 1.2400509700809506) internal successors, (383425), 317148 states have internal predecessors, (383425), 98876 states have call successors, (98876), 34522 states have call predecessors, (98876), 34236 states have return successors, (112730), 94847 states have call predecessors, (112730), 98876 states have call successors, (112730) [2021-12-07 01:51:11,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 442315 states to 442315 states and 595031 transitions. [2021-12-07 01:51:11,737 INFO L78 Accepts]: Start accepts. Automaton has 442315 states and 595031 transitions. Word has length 287 [2021-12-07 01:51:11,738 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 01:51:11,738 INFO L470 AbstractCegarLoop]: Abstraction has 442315 states and 595031 transitions. [2021-12-07 01:51:11,738 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.0) internal successors, (100), 3 states have internal predecessors, (100), 3 states have call successors, (27), 3 states have call predecessors, (27), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2021-12-07 01:51:11,738 INFO L276 IsEmpty]: Start isEmpty. Operand 442315 states and 595031 transitions. [2021-12-07 01:51:11,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 288 [2021-12-07 01:51:11,746 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 01:51:11,747 INFO L514 BasicCegarLoop]: trace histogram [20, 20, 11, 11, 11, 11, 11, 11, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 01:51:11,747 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-12-07 01:51:11,747 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-07 01:51:11,747 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:51:11,747 INFO L85 PathProgramCache]: Analyzing trace with hash -49305572, now seen corresponding path program 1 times [2021-12-07 01:51:11,747 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:51:11,747 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [417544055] [2021-12-07 01:51:11,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:51:11,748 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:51:11,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:51:12,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-07 01:51:12,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:51:12,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:51:12,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:51:12,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-07 01:51:12,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:51:12,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:51:12,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:51:12,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-07 01:51:12,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:51:12,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:51:12,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:51:12,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-07 01:51:12,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:51:12,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:51:12,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:51:12,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-07 01:51:12,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:51:12,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:51:12,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:51:12,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-07 01:51:12,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:51:12,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:51:12,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:51:12,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-07 01:51:12,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:51:12,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:51:12,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:51:12,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-07 01:51:12,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:51:12,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:51:12,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:51:12,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-07 01:51:12,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:51:12,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:51:12,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:51:12,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-07 01:51:12,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:51:12,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:51:12,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:51:12,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-07 01:51:12,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:51:12,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:51:12,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:51:12,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-12-07 01:51:12,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:51:12,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2021-12-07 01:51:12,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:51:12,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2021-12-07 01:51:12,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:51:12,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2021-12-07 01:51:12,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:51:12,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2021-12-07 01:51:12,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:51:12,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:51:12,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:51:12,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2021-12-07 01:51:12,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:51:12,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2021-12-07 01:51:12,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:51:12,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2021-12-07 01:51:12,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:51:12,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2021-12-07 01:51:12,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:51:12,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2021-12-07 01:51:12,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:51:12,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2021-12-07 01:51:12,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:51:12,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 232 [2021-12-07 01:51:12,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:51:12,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 254 [2021-12-07 01:51:12,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:51:12,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 261 [2021-12-07 01:51:12,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:51:12,173 INFO L134 CoverageAnalysis]: Checked inductivity of 1004 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 983 trivial. 0 not checked. [2021-12-07 01:51:12,173 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 01:51:12,173 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [417544055] [2021-12-07 01:51:12,173 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [417544055] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 01:51:12,173 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 01:51:12,173 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-07 01:51:12,173 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [160702174] [2021-12-07 01:51:12,174 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 01:51:12,174 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-07 01:51:12,174 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 01:51:12,174 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-07 01:51:12,175 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-07 01:51:12,175 INFO L87 Difference]: Start difference. First operand 442315 states and 595031 transitions. Second operand has 4 states, 4 states have (on average 25.0) internal successors, (100), 3 states have internal predecessors, (100), 3 states have call successors, (27), 3 states have call predecessors, (27), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2021-12-07 01:51:14,217 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 01:51:16,498 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.28s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 01:51:21,449 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.20s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 01:51:46,125 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 01:51:46,125 INFO L93 Difference]: Finished difference Result 993015 states and 1337601 transitions. [2021-12-07 01:51:46,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-07 01:51:46,126 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 25.0) internal successors, (100), 3 states have internal predecessors, (100), 3 states have call successors, (27), 3 states have call predecessors, (27), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) Word has length 287 [2021-12-07 01:51:46,126 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 01:51:48,602 INFO L225 Difference]: With dead ends: 993015 [2021-12-07 01:51:48,602 INFO L226 Difference]: Without dead ends: 554919 [2021-12-07 01:51:49,707 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 76 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-07 01:51:49,707 INFO L933 BasicCegarLoop]: 3420 mSDtfsCounter, 1887 mSDsluCounter, 3318 mSDsCounter, 0 mSdLazyCounter, 1042 mSolverCounterSat, 591 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2125 SdHoareTripleChecker+Valid, 6738 SdHoareTripleChecker+Invalid, 1635 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 591 IncrementalHoareTripleChecker+Valid, 1042 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.7s IncrementalHoareTripleChecker+Time [2021-12-07 01:51:49,707 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2125 Valid, 6738 Invalid, 1635 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [591 Valid, 1042 Invalid, 2 Unknown, 0 Unchecked, 13.7s Time] [2021-12-07 01:51:50,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 554919 states. [2021-12-07 01:52:11,318 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 554919 to 545543. [2021-12-07 01:52:11,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 545543 states, 381293 states have (on average 1.2395218375370123) internal successors, (472621), 391108 states have internal predecessors, (472621), 121900 states have call successors, (121900), 42706 states have call predecessors, (121900), 42348 states have return successors, (139066), 116907 states have call predecessors, (139066), 121900 states have call successors, (139066) [2021-12-07 01:52:14,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 545543 states to 545543 states and 733587 transitions. [2021-12-07 01:52:14,401 INFO L78 Accepts]: Start accepts. Automaton has 545543 states and 733587 transitions. Word has length 287 [2021-12-07 01:52:14,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 01:52:14,402 INFO L470 AbstractCegarLoop]: Abstraction has 545543 states and 733587 transitions. [2021-12-07 01:52:14,402 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.0) internal successors, (100), 3 states have internal predecessors, (100), 3 states have call successors, (27), 3 states have call predecessors, (27), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2021-12-07 01:52:14,402 INFO L276 IsEmpty]: Start isEmpty. Operand 545543 states and 733587 transitions. [2021-12-07 01:52:14,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 304 [2021-12-07 01:52:14,413 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 01:52:14,413 INFO L514 BasicCegarLoop]: trace histogram [20, 20, 11, 11, 11, 11, 11, 11, 7, 7, 7, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 01:52:14,413 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-12-07 01:52:14,414 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-07 01:52:14,414 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:52:14,414 INFO L85 PathProgramCache]: Analyzing trace with hash -1804388709, now seen corresponding path program 1 times [2021-12-07 01:52:14,414 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:52:14,414 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1725642353] [2021-12-07 01:52:14,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:52:14,415 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:52:14,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:52:14,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-07 01:52:14,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:52:14,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:52:14,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:52:14,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-07 01:52:14,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:52:14,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:52:14,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:52:14,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-07 01:52:14,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:52:14,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:52:14,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:52:14,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-07 01:52:14,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:52:14,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:52:14,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:52:14,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-07 01:52:14,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:52:14,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:52:14,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:52:14,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-07 01:52:14,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:52:14,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:52:14,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:52:14,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-07 01:52:14,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:52:14,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:52:14,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:52:14,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-07 01:52:14,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:52:14,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:52:14,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:52:14,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-07 01:52:14,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:52:14,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:52:14,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:52:14,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-07 01:52:14,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:52:14,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:52:14,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:52:14,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-07 01:52:14,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:52:14,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:52:14,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:52:14,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-12-07 01:52:14,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:52:14,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2021-12-07 01:52:14,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:52:14,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2021-12-07 01:52:14,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:52:14,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2021-12-07 01:52:14,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:52:14,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2021-12-07 01:52:14,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:52:14,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:52:14,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:52:14,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2021-12-07 01:52:14,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:52:14,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2021-12-07 01:52:14,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:52:14,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2021-12-07 01:52:14,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:52:14,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2021-12-07 01:52:14,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:52:14,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2021-12-07 01:52:14,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:52:14,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2021-12-07 01:52:14,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:52:14,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 232 [2021-12-07 01:52:14,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:52:14,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2021-12-07 01:52:14,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:52:14,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 253 [2021-12-07 01:52:14,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:52:14,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 269 [2021-12-07 01:52:14,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:52:14,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 278 [2021-12-07 01:52:14,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:52:14,844 INFO L134 CoverageAnalysis]: Checked inductivity of 1079 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 1045 trivial. 0 not checked. [2021-12-07 01:52:14,844 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 01:52:14,844 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1725642353] [2021-12-07 01:52:14,844 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1725642353] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 01:52:14,844 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 01:52:14,845 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-07 01:52:14,845 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [490198224] [2021-12-07 01:52:14,845 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 01:52:14,845 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-07 01:52:14,845 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 01:52:14,845 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-07 01:52:14,846 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-07 01:52:14,846 INFO L87 Difference]: Start difference. First operand 545543 states and 733587 transitions. Second operand has 4 states, 4 states have (on average 25.0) internal successors, (100), 3 states have internal predecessors, (100), 3 states have call successors, (29), 3 states have call predecessors, (29), 1 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) [2021-12-07 01:52:16,896 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 01:52:19,163 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.27s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 01:52:55,604 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 01:52:55,604 INFO L93 Difference]: Finished difference Result 1352879 states and 1821853 transitions. [2021-12-07 01:52:55,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-07 01:52:55,605 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 25.0) internal successors, (100), 3 states have internal predecessors, (100), 3 states have call successors, (29), 3 states have call predecessors, (29), 1 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) Word has length 303 [2021-12-07 01:52:55,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 01:52:59,266 INFO L225 Difference]: With dead ends: 1352879 [2021-12-07 01:52:59,267 INFO L226 Difference]: Without dead ends: 811555 [2021-12-07 01:53:00,731 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 80 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-07 01:53:00,731 INFO L933 BasicCegarLoop]: 3551 mSDtfsCounter, 1913 mSDsluCounter, 3415 mSDsCounter, 0 mSdLazyCounter, 1049 mSolverCounterSat, 587 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2156 SdHoareTripleChecker+Valid, 6966 SdHoareTripleChecker+Invalid, 1638 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 587 IncrementalHoareTripleChecker+Valid, 1049 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.4s IncrementalHoareTripleChecker+Time [2021-12-07 01:53:00,731 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2156 Valid, 6966 Invalid, 1638 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [587 Valid, 1049 Invalid, 2 Unknown, 0 Unchecked, 11.4s Time] [2021-12-07 01:53:01,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 811555 states. [2021-12-07 01:53:31,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 811555 to 797259. [2021-12-07 01:53:32,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 797259 states, 558285 states have (on average 1.2385448292538757) internal successors, (691461), 572596 states have internal predecessors, (691461), 177056 states have call successors, (177056), 62466 states have call predecessors, (177056), 61916 states have return successors, (201838), 169895 states have call predecessors, (201838), 177056 states have call successors, (201838) [2021-12-07 01:53:35,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 797259 states to 797259 states and 1070355 transitions. [2021-12-07 01:53:35,748 INFO L78 Accepts]: Start accepts. Automaton has 797259 states and 1070355 transitions. Word has length 303 [2021-12-07 01:53:35,749 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 01:53:35,749 INFO L470 AbstractCegarLoop]: Abstraction has 797259 states and 1070355 transitions. [2021-12-07 01:53:35,749 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.0) internal successors, (100), 3 states have internal predecessors, (100), 3 states have call successors, (29), 3 states have call predecessors, (29), 1 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) [2021-12-07 01:53:35,749 INFO L276 IsEmpty]: Start isEmpty. Operand 797259 states and 1070355 transitions. [2021-12-07 01:53:35,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 310 [2021-12-07 01:53:35,764 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 01:53:35,764 INFO L514 BasicCegarLoop]: trace histogram [20, 20, 11, 11, 11, 11, 11, 11, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 01:53:35,764 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-12-07 01:53:35,764 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-07 01:53:35,765 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:53:35,765 INFO L85 PathProgramCache]: Analyzing trace with hash 1550844953, now seen corresponding path program 1 times [2021-12-07 01:53:35,765 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:53:35,765 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [470206040] [2021-12-07 01:53:35,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:53:35,765 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:53:36,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:53:36,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-07 01:53:36,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:53:36,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:53:36,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:53:36,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-07 01:53:36,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:53:36,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:53:36,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:53:36,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-07 01:53:36,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:53:36,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:53:36,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:53:36,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-07 01:53:36,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:53:36,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:53:36,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:53:36,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-07 01:53:36,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:53:36,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:53:36,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:53:36,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-07 01:53:36,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:53:36,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:53:36,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:53:36,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-07 01:53:36,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:53:36,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:53:36,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:53:36,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-07 01:53:36,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:53:36,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:53:36,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:53:36,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-07 01:53:36,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:53:36,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:53:36,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:53:36,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-07 01:53:36,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:53:36,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:53:36,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:53:36,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-07 01:53:36,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:53:36,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:53:36,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:53:36,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-12-07 01:53:36,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:53:36,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2021-12-07 01:53:36,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:53:36,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2021-12-07 01:53:36,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:53:36,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2021-12-07 01:53:36,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:53:36,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2021-12-07 01:53:36,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:53:36,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 01:53:36,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:53:36,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2021-12-07 01:53:36,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:53:36,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2021-12-07 01:53:36,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:53:36,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2021-12-07 01:53:36,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:53:36,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2021-12-07 01:53:36,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:53:36,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2021-12-07 01:53:36,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:53:36,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2021-12-07 01:53:36,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:53:36,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 232 [2021-12-07 01:53:36,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:53:36,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 254 [2021-12-07 01:53:36,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:53:36,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 261 [2021-12-07 01:53:36,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:53:36,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2021-12-07 01:53:36,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:53:36,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 296 [2021-12-07 01:53:36,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:53:36,569 INFO L134 CoverageAnalysis]: Checked inductivity of 1010 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1010 trivial. 0 not checked. [2021-12-07 01:53:36,569 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 01:53:36,569 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [470206040] [2021-12-07 01:53:36,569 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [470206040] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 01:53:36,569 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 01:53:36,569 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-07 01:53:36,569 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1133936347] [2021-12-07 01:53:36,569 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 01:53:36,570 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-07 01:53:36,570 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 01:53:36,570 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-07 01:53:36,570 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-07 01:53:36,570 INFO L87 Difference]: Start difference. First operand 797259 states and 1070355 transitions. Second operand has 6 states, 6 states have (on average 16.833333333333332) internal successors, (101), 4 states have internal predecessors, (101), 2 states have call successors, (29), 4 states have call predecessors, (29), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2021-12-07 01:53:38,614 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 01:54:15,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 01:54:15,500 INFO L93 Difference]: Finished difference Result 811431 states and 1091393 transitions. [2021-12-07 01:54:15,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-07 01:54:15,501 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 16.833333333333332) internal successors, (101), 4 states have internal predecessors, (101), 2 states have call successors, (29), 4 states have call predecessors, (29), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) Word has length 309 [2021-12-07 01:54:15,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 01:54:18,939 INFO L225 Difference]: With dead ends: 811431 [2021-12-07 01:54:18,940 INFO L226 Difference]: Without dead ends: 811429 [2021-12-07 01:54:19,262 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 83 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-12-07 01:54:19,262 INFO L933 BasicCegarLoop]: 1957 mSDtfsCounter, 1554 mSDsluCounter, 4856 mSDsCounter, 0 mSdLazyCounter, 1268 mSolverCounterSat, 538 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1689 SdHoareTripleChecker+Valid, 6813 SdHoareTripleChecker+Invalid, 1807 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 538 IncrementalHoareTripleChecker+Valid, 1268 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.3s IncrementalHoareTripleChecker+Time [2021-12-07 01:54:19,262 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1689 Valid, 6813 Invalid, 1807 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [538 Valid, 1268 Invalid, 1 Unknown, 0 Unchecked, 13.3s Time] [2021-12-07 01:54:19,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 811429 states.