./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-media-pci-cx88-cx8800.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version b5237d83 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_260883fd-14e1-4abb-a988-d7b587926116/bin/utaipan-g80aRyZoba/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_260883fd-14e1-4abb-a988-d7b587926116/bin/utaipan-g80aRyZoba/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_260883fd-14e1-4abb-a988-d7b587926116/bin/utaipan-g80aRyZoba/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_260883fd-14e1-4abb-a988-d7b587926116/bin/utaipan-g80aRyZoba/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-pci-cx88-cx8800.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_260883fd-14e1-4abb-a988-d7b587926116/bin/utaipan-g80aRyZoba/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_260883fd-14e1-4abb-a988-d7b587926116/bin/utaipan-g80aRyZoba --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 Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 4dc730f52c640d2c8e3cb7b93e5d1f8c1973029db6cd19ab3f75108e9e7f0634 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-b5237d8 [2022-11-22 01:26:56,054 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-22 01:26:56,056 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-22 01:26:56,089 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-22 01:26:56,090 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-22 01:26:56,091 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-22 01:26:56,092 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-22 01:26:56,094 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-22 01:26:56,101 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-22 01:26:56,107 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-22 01:26:56,109 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-22 01:26:56,112 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-22 01:26:56,113 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-22 01:26:56,115 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-22 01:26:56,119 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-22 01:26:56,121 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-22 01:26:56,123 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-22 01:26:56,124 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-22 01:26:56,126 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-22 01:26:56,133 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-22 01:26:56,134 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-22 01:26:56,138 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-22 01:26:56,140 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-22 01:26:56,141 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-22 01:26:56,149 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-22 01:26:56,149 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-22 01:26:56,149 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-22 01:26:56,151 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-22 01:26:56,151 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-22 01:26:56,152 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-22 01:26:56,153 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-22 01:26:56,153 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-22 01:26:56,155 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-22 01:26:56,156 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-22 01:26:56,157 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-22 01:26:56,158 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-22 01:26:56,158 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-22 01:26:56,159 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-22 01:26:56,159 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-22 01:26:56,160 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-22 01:26:56,160 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-22 01:26:56,161 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_260883fd-14e1-4abb-a988-d7b587926116/bin/utaipan-g80aRyZoba/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-22 01:26:56,204 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-22 01:26:56,205 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-22 01:26:56,205 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-22 01:26:56,206 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-22 01:26:56,206 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-22 01:26:56,207 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-22 01:26:56,207 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-22 01:26:56,207 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-22 01:26:56,207 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-22 01:26:56,207 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-22 01:26:56,208 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-22 01:26:56,209 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-22 01:26:56,209 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-22 01:26:56,209 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-22 01:26:56,209 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-22 01:26:56,209 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-22 01:26:56,210 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-22 01:26:56,210 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-22 01:26:56,211 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-22 01:26:56,211 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-22 01:26:56,211 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-22 01:26:56,212 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-22 01:26:56,212 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-22 01:26:56,212 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-22 01:26:56,212 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-22 01:26:56,212 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-22 01:26:56,213 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-22 01:26:56,213 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-22 01:26:56,213 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-22 01:26:56,214 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 01:26:56,214 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-22 01:26:56,214 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-22 01:26:56,214 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-22 01:26:56,214 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-22 01:26:56,215 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-22 01:26:56,215 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-22 01:26:56,215 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-22 01:26:56,215 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-22 01:26:56,215 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_260883fd-14e1-4abb-a988-d7b587926116/bin/utaipan-g80aRyZoba/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_260883fd-14e1-4abb-a988-d7b587926116/bin/utaipan-g80aRyZoba Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4dc730f52c640d2c8e3cb7b93e5d1f8c1973029db6cd19ab3f75108e9e7f0634 [2022-11-22 01:26:56,528 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-22 01:26:56,557 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-22 01:26:56,559 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-22 01:26:56,561 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-22 01:26:56,561 INFO L275 PluginConnector]: CDTParser initialized [2022-11-22 01:26:56,563 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_260883fd-14e1-4abb-a988-d7b587926116/bin/utaipan-g80aRyZoba/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-pci-cx88-cx8800.cil.i [2022-11-22 01:26:59,681 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-22 01:27:00,395 INFO L351 CDTParser]: Found 1 translation units. [2022-11-22 01:27:00,396 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_260883fd-14e1-4abb-a988-d7b587926116/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-pci-cx88-cx8800.cil.i [2022-11-22 01:27:00,453 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_260883fd-14e1-4abb-a988-d7b587926116/bin/utaipan-g80aRyZoba/data/424b85b48/20c5950654dd420d8bf327be05abda9c/FLAGba98645a2 [2022-11-22 01:27:00,467 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_260883fd-14e1-4abb-a988-d7b587926116/bin/utaipan-g80aRyZoba/data/424b85b48/20c5950654dd420d8bf327be05abda9c [2022-11-22 01:27:00,470 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-22 01:27:00,471 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-22 01:27:00,473 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-22 01:27:00,473 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-22 01:27:00,477 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-22 01:27:00,478 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:27:00" (1/1) ... [2022-11-22 01:27:00,479 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3137864e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:27:00, skipping insertion in model container [2022-11-22 01:27:00,479 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:27:00" (1/1) ... [2022-11-22 01:27:00,487 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-22 01:27:00,670 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-22 01:27:04,827 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_260883fd-14e1-4abb-a988-d7b587926116/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-pci-cx88-cx8800.cil.i[570903,570916] [2022-11-22 01:27:04,831 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_260883fd-14e1-4abb-a988-d7b587926116/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-pci-cx88-cx8800.cil.i[571069,571082] [2022-11-22 01:27:04,832 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_260883fd-14e1-4abb-a988-d7b587926116/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-pci-cx88-cx8800.cil.i[571233,571246] [2022-11-22 01:27:04,833 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_260883fd-14e1-4abb-a988-d7b587926116/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-pci-cx88-cx8800.cil.i[571398,571411] [2022-11-22 01:27:04,860 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 01:27:05,003 INFO L203 MainTranslator]: Completed pre-run [2022-11-22 01:27:05,906 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_260883fd-14e1-4abb-a988-d7b587926116/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-pci-cx88-cx8800.cil.i[570903,570916] [2022-11-22 01:27:05,907 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_260883fd-14e1-4abb-a988-d7b587926116/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-pci-cx88-cx8800.cil.i[571069,571082] [2022-11-22 01:27:05,907 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_260883fd-14e1-4abb-a988-d7b587926116/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-pci-cx88-cx8800.cil.i[571233,571246] [2022-11-22 01:27:05,908 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_260883fd-14e1-4abb-a988-d7b587926116/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-pci-cx88-cx8800.cil.i[571398,571411] [2022-11-22 01:27:05,918 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 01:27:06,132 INFO L208 MainTranslator]: Completed translation [2022-11-22 01:27:06,133 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:27:06 WrapperNode [2022-11-22 01:27:06,133 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-22 01:27:06,134 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-22 01:27:06,134 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-22 01:27:06,134 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-22 01:27:06,143 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:27:06" (1/1) ... [2022-11-22 01:27:06,261 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:27:06" (1/1) ... [2022-11-22 01:27:06,637 INFO L138 Inliner]: procedures = 489, calls = 4166, calls flagged for inlining = 273, calls inlined = 262, statements flattened = 8683 [2022-11-22 01:27:06,642 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-22 01:27:06,642 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-22 01:27:06,643 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-22 01:27:06,644 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-22 01:27:06,666 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:27:06" (1/1) ... [2022-11-22 01:27:06,666 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:27:06" (1/1) ... [2022-11-22 01:27:06,750 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:27:06" (1/1) ... [2022-11-22 01:27:06,751 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:27:06" (1/1) ... [2022-11-22 01:27:06,959 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:27:06" (1/1) ... [2022-11-22 01:27:07,007 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:27:06" (1/1) ... [2022-11-22 01:27:07,087 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:27:06" (1/1) ... [2022-11-22 01:27:07,207 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:27:06" (1/1) ... [2022-11-22 01:27:07,284 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-22 01:27:07,285 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-22 01:27:07,285 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-22 01:27:07,286 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-22 01:27:07,286 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:27:06" (1/1) ... [2022-11-22 01:27:07,293 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 01:27:07,303 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_260883fd-14e1-4abb-a988-d7b587926116/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:27:07,324 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_260883fd-14e1-4abb-a988-d7b587926116/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-22 01:27:07,351 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_260883fd-14e1-4abb-a988-d7b587926116/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-22 01:27:07,368 INFO L130 BoogieDeclarations]: Found specification of procedure video_open [2022-11-22 01:27:07,369 INFO L138 BoogieDeclarations]: Found implementation of procedure video_open [2022-11-22 01:27:07,369 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-11-22 01:27:07,369 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-11-22 01:27:07,369 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_streamon [2022-11-22 01:27:07,370 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_streamon [2022-11-22 01:27:07,370 INFO L130 BoogieDeclarations]: Found specification of procedure cx8800_unregister_video [2022-11-22 01:27:07,370 INFO L138 BoogieDeclarations]: Found implementation of procedure cx8800_unregister_video [2022-11-22 01:27:07,370 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_s_fmt_vid_cap [2022-11-22 01:27:07,370 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_s_fmt_vid_cap [2022-11-22 01:27:07,370 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-22 01:27:07,371 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-22 01:27:07,371 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_g_input [2022-11-22 01:27:07,371 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_g_input [2022-11-22 01:27:07,371 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_reqbufs [2022-11-22 01:27:07,371 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_reqbufs [2022-11-22 01:27:07,371 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_enum_fmt_vid_cap [2022-11-22 01:27:07,372 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_enum_fmt_vid_cap [2022-11-22 01:27:07,372 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2022-11-22 01:27:07,372 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2022-11-22 01:27:07,372 INFO L130 BoogieDeclarations]: Found specification of procedure cx88_set_tvnorm [2022-11-22 01:27:07,372 INFO L138 BoogieDeclarations]: Found implementation of procedure cx88_set_tvnorm [2022-11-22 01:27:07,372 INFO L130 BoogieDeclarations]: Found specification of procedure cx88_set_tvaudio [2022-11-22 01:27:07,373 INFO L138 BoogieDeclarations]: Found implementation of procedure cx88_set_tvaudio [2022-11-22 01:27:07,373 INFO L130 BoogieDeclarations]: Found specification of procedure cx8800_s_vid_ctrl [2022-11-22 01:27:07,373 INFO L138 BoogieDeclarations]: Found implementation of procedure cx8800_s_vid_ctrl [2022-11-22 01:27:07,373 INFO L130 BoogieDeclarations]: Found specification of procedure res_free [2022-11-22 01:27:07,373 INFO L138 BoogieDeclarations]: Found implementation of procedure res_free [2022-11-22 01:27:07,373 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2022-11-22 01:27:07,374 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2022-11-22 01:27:07,374 INFO L130 BoogieDeclarations]: Found specification of procedure videobuf_to_dma [2022-11-22 01:27:07,374 INFO L138 BoogieDeclarations]: Found implementation of procedure videobuf_to_dma [2022-11-22 01:27:07,374 INFO L130 BoogieDeclarations]: Found specification of procedure cx88_shutdown [2022-11-22 01:27:07,374 INFO L138 BoogieDeclarations]: Found implementation of procedure cx88_shutdown [2022-11-22 01:27:07,374 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~TO~VOID [2022-11-22 01:27:07,375 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~TO~VOID [2022-11-22 01:27:07,375 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_g_fmt_vid_cap [2022-11-22 01:27:07,375 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_g_fmt_vid_cap [2022-11-22 01:27:07,375 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-11-22 01:27:07,375 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-11-22 01:27:07,375 INFO L130 BoogieDeclarations]: Found specification of procedure cx88_newstation [2022-11-22 01:27:07,376 INFO L138 BoogieDeclarations]: Found implementation of procedure cx88_newstation [2022-11-22 01:27:07,376 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_g_std [2022-11-22 01:27:07,376 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_g_std [2022-11-22 01:27:07,376 INFO L130 BoogieDeclarations]: Found specification of procedure cx88_vdev_init [2022-11-22 01:27:07,376 INFO L138 BoogieDeclarations]: Found implementation of procedure cx88_vdev_init [2022-11-22 01:27:07,376 INFO L130 BoogieDeclarations]: Found specification of procedure video_mmap [2022-11-22 01:27:07,376 INFO L138 BoogieDeclarations]: Found implementation of procedure video_mmap [2022-11-22 01:27:07,377 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2022-11-22 01:27:07,377 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2022-11-22 01:27:07,377 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-11-22 01:27:07,377 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-11-22 01:27:07,377 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2022-11-22 01:27:07,378 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2022-11-22 01:27:07,378 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_del_timer [2022-11-22 01:27:07,378 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_del_timer [2022-11-22 01:27:07,378 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_ctrl_new_std [2022-11-22 01:27:07,378 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_ctrl_new_std [2022-11-22 01:27:07,378 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-11-22 01:27:07,378 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-11-22 01:27:07,379 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_ctrl_poll [2022-11-22 01:27:07,379 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_ctrl_poll [2022-11-22 01:27:07,379 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_g_frequency [2022-11-22 01:27:07,379 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_g_frequency [2022-11-22 01:27:07,379 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_querybuf [2022-11-22 01:27:07,379 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_querybuf [2022-11-22 01:27:07,380 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exit [2022-11-22 01:27:07,380 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exit [2022-11-22 01:27:07,380 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-11-22 01:27:07,380 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-11-22 01:27:07,380 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_g_register [2022-11-22 01:27:07,380 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_g_register [2022-11-22 01:27:07,381 INFO L130 BoogieDeclarations]: Found specification of procedure video_devdata [2022-11-22 01:27:07,381 INFO L138 BoogieDeclarations]: Found implementation of procedure video_devdata [2022-11-22 01:27:07,381 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_ctrl_handler_setup [2022-11-22 01:27:07,381 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_ctrl_handler_setup [2022-11-22 01:27:07,381 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-22 01:27:07,381 INFO L130 BoogieDeclarations]: Found specification of procedure cx88_set_stereo [2022-11-22 01:27:07,382 INFO L138 BoogieDeclarations]: Found implementation of procedure cx88_set_stereo [2022-11-22 01:27:07,382 INFO L130 BoogieDeclarations]: Found specification of procedure cx8800_vbi_fmt [2022-11-22 01:27:07,382 INFO L138 BoogieDeclarations]: Found implementation of procedure cx8800_vbi_fmt [2022-11-22 01:27:07,382 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2022-11-22 01:27:07,382 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2022-11-22 01:27:07,382 INFO L130 BoogieDeclarations]: Found specification of procedure cx88_audio_thread [2022-11-22 01:27:07,383 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2022-11-22 01:27:07,383 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2022-11-22 01:27:07,383 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_try_fmt_vid_cap [2022-11-22 01:27:07,383 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_try_fmt_vid_cap [2022-11-22 01:27:07,383 INFO L130 BoogieDeclarations]: Found specification of procedure video_ioctl2 [2022-11-22 01:27:07,383 INFO L138 BoogieDeclarations]: Found implementation of procedure video_ioctl2 [2022-11-22 01:27:07,384 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-22 01:27:07,384 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u32~0~X~~u32~0~X~~u32~0~TO~int [2022-11-22 01:27:07,384 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u32~0~X~~u32~0~X~~u32~0~TO~int [2022-11-22 01:27:07,384 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-11-22 01:27:07,384 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-11-22 01:27:07,384 INFO L130 BoogieDeclarations]: Found specification of procedure cx8800_restart_vbi_queue [2022-11-22 01:27:07,385 INFO L138 BoogieDeclarations]: Found implementation of procedure cx8800_restart_vbi_queue [2022-11-22 01:27:07,385 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_vb_lock_of_videobuf_queue [2022-11-22 01:27:07,385 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_vb_lock_of_videobuf_queue [2022-11-22 01:27:07,385 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-22 01:27:07,385 INFO L130 BoogieDeclarations]: Found specification of procedure cx8800_finidev [2022-11-22 01:27:07,385 INFO L138 BoogieDeclarations]: Found implementation of procedure cx8800_finidev [2022-11-22 01:27:07,385 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2022-11-22 01:27:07,386 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2022-11-22 01:27:07,386 INFO L130 BoogieDeclarations]: Found specification of procedure list_move_tail [2022-11-22 01:27:07,386 INFO L138 BoogieDeclarations]: Found implementation of procedure list_move_tail [2022-11-22 01:27:07,386 INFO L130 BoogieDeclarations]: Found specification of procedure cx88_querycap [2022-11-22 01:27:07,386 INFO L138 BoogieDeclarations]: Found implementation of procedure cx88_querycap [2022-11-22 01:27:07,387 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2022-11-22 01:27:07,387 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2022-11-22 01:27:07,387 INFO L130 BoogieDeclarations]: Found specification of procedure cx88_set_freq [2022-11-22 01:27:07,387 INFO L138 BoogieDeclarations]: Found implementation of procedure cx88_set_freq [2022-11-22 01:27:07,387 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2022-11-22 01:27:07,387 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2022-11-22 01:27:07,387 INFO L130 BoogieDeclarations]: Found specification of procedure cx8800_s_aud_ctrl [2022-11-22 01:27:07,388 INFO L138 BoogieDeclarations]: Found implementation of procedure cx8800_s_aud_ctrl [2022-11-22 01:27:07,388 INFO L130 BoogieDeclarations]: Found specification of procedure video_read [2022-11-22 01:27:07,388 INFO L138 BoogieDeclarations]: Found implementation of procedure video_read [2022-11-22 01:27:07,388 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2022-11-22 01:27:07,388 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2022-11-22 01:27:07,388 INFO L130 BoogieDeclarations]: Found specification of procedure cx88_video_mux [2022-11-22 01:27:07,389 INFO L138 BoogieDeclarations]: Found implementation of procedure cx88_video_mux [2022-11-22 01:27:07,389 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2022-11-22 01:27:07,389 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2022-11-22 01:27:07,389 INFO L130 BoogieDeclarations]: Found specification of procedure video_is_registered [2022-11-22 01:27:07,389 INFO L138 BoogieDeclarations]: Found implementation of procedure video_is_registered [2022-11-22 01:27:07,389 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_ctrl_subscribe_event [2022-11-22 01:27:07,390 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_ctrl_subscribe_event [2022-11-22 01:27:07,390 INFO L130 BoogieDeclarations]: Found specification of procedure video_unregister_device [2022-11-22 01:27:07,390 INFO L138 BoogieDeclarations]: Found implementation of procedure video_unregister_device [2022-11-22 01:27:07,390 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-22 01:27:07,390 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2022-11-22 01:27:07,390 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2022-11-22 01:27:07,390 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2022-11-22 01:27:07,391 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2022-11-22 01:27:07,391 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_2 [2022-11-22 01:27:07,391 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_2 [2022-11-22 01:27:07,391 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer [2022-11-22 01:27:07,391 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer [2022-11-22 01:27:07,391 INFO L130 BoogieDeclarations]: Found specification of procedure videobuf_queue_sg_init [2022-11-22 01:27:07,392 INFO L138 BoogieDeclarations]: Found implementation of procedure videobuf_queue_sg_init [2022-11-22 01:27:07,392 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-22 01:27:07,392 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-11-22 01:27:07,392 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-11-22 01:27:07,392 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-22 01:27:07,392 INFO L130 BoogieDeclarations]: Found specification of procedure video_release [2022-11-22 01:27:07,392 INFO L138 BoogieDeclarations]: Found implementation of procedure video_release [2022-11-22 01:27:07,393 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-11-22 01:27:07,393 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-11-22 01:27:07,393 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2022-11-22 01:27:07,393 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2022-11-22 01:27:07,393 INFO L130 BoogieDeclarations]: Found specification of procedure restart_video_queue [2022-11-22 01:27:07,393 INFO L138 BoogieDeclarations]: Found implementation of procedure restart_video_queue [2022-11-22 01:27:07,393 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_qbuf [2022-11-22 01:27:07,394 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_qbuf [2022-11-22 01:27:07,394 INFO L130 BoogieDeclarations]: Found specification of procedure cx88_wakeup [2022-11-22 01:27:07,394 INFO L138 BoogieDeclarations]: Found implementation of procedure cx88_wakeup [2022-11-22 01:27:07,394 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2022-11-22 01:27:07,394 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2022-11-22 01:27:07,394 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_ctrl_s_ctrl [2022-11-22 01:27:07,395 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_ctrl_s_ctrl [2022-11-22 01:27:07,395 INFO L130 BoogieDeclarations]: Found specification of procedure videobuf_iolock [2022-11-22 01:27:07,395 INFO L138 BoogieDeclarations]: Found implementation of procedure videobuf_iolock [2022-11-22 01:27:07,395 INFO L130 BoogieDeclarations]: Found specification of procedure cx88_enum_input [2022-11-22 01:27:07,395 INFO L138 BoogieDeclarations]: Found implementation of procedure cx88_enum_input [2022-11-22 01:27:07,395 INFO L130 BoogieDeclarations]: Found specification of procedure cx88_sram_channel_dump [2022-11-22 01:27:07,395 INFO L138 BoogieDeclarations]: Found implementation of procedure cx88_sram_channel_dump [2022-11-22 01:27:07,396 INFO L130 BoogieDeclarations]: Found specification of procedure video_set_drvdata [2022-11-22 01:27:07,396 INFO L138 BoogieDeclarations]: Found implementation of procedure video_set_drvdata [2022-11-22 01:27:07,396 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_g_tuner [2022-11-22 01:27:07,396 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_g_tuner [2022-11-22 01:27:07,396 INFO L130 BoogieDeclarations]: Found specification of procedure res_check [2022-11-22 01:27:07,396 INFO L138 BoogieDeclarations]: Found implementation of procedure res_check [2022-11-22 01:27:07,396 INFO L130 BoogieDeclarations]: Found specification of procedure format_by_fourcc [2022-11-22 01:27:07,397 INFO L138 BoogieDeclarations]: Found implementation of procedure format_by_fourcc [2022-11-22 01:27:07,397 INFO L130 BoogieDeclarations]: Found specification of procedure cx88_risc_buffer [2022-11-22 01:27:07,397 INFO L138 BoogieDeclarations]: Found implementation of procedure cx88_risc_buffer [2022-11-22 01:27:07,397 INFO L130 BoogieDeclarations]: Found specification of procedure dev_name [2022-11-22 01:27:07,397 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_name [2022-11-22 01:27:07,397 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2022-11-22 01:27:07,398 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2022-11-22 01:27:07,398 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_event_unsubscribe [2022-11-22 01:27:07,398 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_event_unsubscribe [2022-11-22 01:27:07,398 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-22 01:27:07,398 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-22 01:27:07,398 INFO L130 BoogieDeclarations]: Found specification of procedure cx88_risc_stopper [2022-11-22 01:27:07,398 INFO L138 BoogieDeclarations]: Found implementation of procedure cx88_risc_stopper [2022-11-22 01:27:07,399 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2022-11-22 01:27:07,399 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2022-11-22 01:27:07,399 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy [2022-11-22 01:27:07,399 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy [2022-11-22 01:27:07,399 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-22 01:27:07,399 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-22 01:27:07,399 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_s_std [2022-11-22 01:27:07,400 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_s_std [2022-11-22 01:27:07,400 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_streamoff [2022-11-22 01:27:07,400 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_streamoff [2022-11-22 01:27:07,400 INFO L130 BoogieDeclarations]: Found specification of procedure cx88_sram_channel_setup [2022-11-22 01:27:07,400 INFO L138 BoogieDeclarations]: Found implementation of procedure cx88_sram_channel_setup [2022-11-22 01:27:07,400 INFO L130 BoogieDeclarations]: Found specification of procedure cx88_free_buffer [2022-11-22 01:27:07,400 INFO L138 BoogieDeclarations]: Found implementation of procedure cx88_free_buffer [2022-11-22 01:27:07,401 INFO L130 BoogieDeclarations]: Found specification of procedure video_device_release [2022-11-22 01:27:07,401 INFO L138 BoogieDeclarations]: Found implementation of procedure video_device_release [2022-11-22 01:27:07,401 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2022-11-22 01:27:07,401 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2022-11-22 01:27:07,401 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_enum_input [2022-11-22 01:27:07,401 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_enum_input [2022-11-22 01:27:07,401 INFO L130 BoogieDeclarations]: Found specification of procedure res_get [2022-11-22 01:27:07,402 INFO L138 BoogieDeclarations]: Found implementation of procedure res_get [2022-11-22 01:27:07,402 INFO L130 BoogieDeclarations]: Found specification of procedure videobuf_mmap_free [2022-11-22 01:27:07,402 INFO L138 BoogieDeclarations]: Found implementation of procedure videobuf_mmap_free [2022-11-22 01:27:07,402 INFO L130 BoogieDeclarations]: Found specification of procedure cx8800_resume [2022-11-22 01:27:07,403 INFO L138 BoogieDeclarations]: Found implementation of procedure cx8800_resume [2022-11-22 01:27:07,403 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_cx8800_pci_driver_exit_15_2 [2022-11-22 01:27:07,403 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_cx8800_pci_driver_exit_15_2 [2022-11-22 01:27:07,403 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_s_frequency [2022-11-22 01:27:07,403 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_s_frequency [2022-11-22 01:27:07,403 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer [2022-11-22 01:27:07,403 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer [2022-11-22 01:27:07,404 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_get_drvdata [2022-11-22 01:27:07,404 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_get_drvdata [2022-11-22 01:27:07,404 INFO L130 BoogieDeclarations]: Found specification of procedure video_poll [2022-11-22 01:27:07,404 INFO L138 BoogieDeclarations]: Found implementation of procedure video_poll [2022-11-22 01:27:07,404 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-22 01:27:07,404 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-11-22 01:27:07,404 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-11-22 01:27:07,405 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-22 01:27:07,405 INFO L130 BoogieDeclarations]: Found specification of procedure cx88_core_put [2022-11-22 01:27:07,405 INFO L138 BoogieDeclarations]: Found implementation of procedure cx88_core_put [2022-11-22 01:27:07,405 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_ctrl_find [2022-11-22 01:27:07,405 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_ctrl_find [2022-11-22 01:27:07,405 INFO L130 BoogieDeclarations]: Found specification of procedure buffer_release [2022-11-22 01:27:07,406 INFO L138 BoogieDeclarations]: Found implementation of procedure buffer_release [2022-11-22 01:27:07,406 INFO L130 BoogieDeclarations]: Found specification of procedure start_video_dma [2022-11-22 01:27:07,406 INFO L138 BoogieDeclarations]: Found implementation of procedure start_video_dma [2022-11-22 01:27:07,406 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-22 01:27:07,406 INFO L130 BoogieDeclarations]: Found specification of procedure video_device_node_name [2022-11-22 01:27:07,406 INFO L138 BoogieDeclarations]: Found implementation of procedure video_device_node_name [2022-11-22 01:27:07,406 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2022-11-22 01:27:07,407 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2022-11-22 01:27:07,407 INFO L130 BoogieDeclarations]: Found specification of procedure get_queue [2022-11-22 01:27:07,407 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queue [2022-11-22 01:27:07,407 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2022-11-22 01:27:07,407 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2022-11-22 01:27:07,407 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-11-22 01:27:07,407 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-11-22 01:27:07,408 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq [2022-11-22 01:27:07,408 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq [2022-11-22 01:27:07,408 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-11-22 01:27:07,408 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-11-22 01:27:07,408 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_dqbuf [2022-11-22 01:27:07,408 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_dqbuf [2022-11-22 01:27:07,409 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2022-11-22 01:27:07,409 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2022-11-22 01:27:07,409 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_querycap [2022-11-22 01:27:07,409 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_querycap [2022-11-22 01:27:07,409 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock [2022-11-22 01:27:07,409 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock [2022-11-22 01:27:07,409 INFO L130 BoogieDeclarations]: Found specification of procedure video_register_device [2022-11-22 01:27:07,410 INFO L138 BoogieDeclarations]: Found implementation of procedure video_register_device [2022-11-22 01:27:07,410 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_lock_of_cx88_core [2022-11-22 01:27:07,410 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_lock_of_cx88_core [2022-11-22 01:27:07,410 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_lock_of_cx88_core [2022-11-22 01:27:07,410 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_lock_of_cx88_core [2022-11-22 01:27:07,410 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-22 01:27:07,410 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-22 01:27:07,411 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlock [2022-11-22 01:27:07,411 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlock [2022-11-22 01:27:07,411 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-22 01:27:07,411 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-22 01:27:07,411 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-22 01:27:07,411 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_s_input [2022-11-22 01:27:07,411 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_s_input [2022-11-22 01:27:07,412 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_device [2022-11-22 01:27:07,412 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_device [2022-11-22 01:27:07,412 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_s_tuner [2022-11-22 01:27:07,412 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_s_tuner [2022-11-22 01:27:07,412 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2022-11-22 01:27:07,412 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2022-11-22 01:27:07,412 INFO L130 BoogieDeclarations]: Found specification of procedure cx8800_start_vbi_dma [2022-11-22 01:27:07,413 INFO L138 BoogieDeclarations]: Found implementation of procedure cx8800_start_vbi_dma [2022-11-22 01:27:07,413 INFO L130 BoogieDeclarations]: Found specification of procedure cx88_ir_stop [2022-11-22 01:27:07,413 INFO L138 BoogieDeclarations]: Found implementation of procedure cx88_ir_stop [2022-11-22 01:27:07,413 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_s_register [2022-11-22 01:27:07,413 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_s_register [2022-11-22 01:27:07,413 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-11-22 01:27:07,413 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-11-22 01:27:07,414 INFO L130 BoogieDeclarations]: Found specification of procedure init_timer_key [2022-11-22 01:27:07,414 INFO L138 BoogieDeclarations]: Found implementation of procedure init_timer_key [2022-11-22 01:27:07,414 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_power_state [2022-11-22 01:27:07,414 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_power_state [2022-11-22 01:27:07,414 INFO L130 BoogieDeclarations]: Found specification of procedure norm_maxw [2022-11-22 01:27:07,414 INFO L138 BoogieDeclarations]: Found implementation of procedure norm_maxw [2022-11-22 01:27:07,414 INFO L130 BoogieDeclarations]: Found specification of procedure msecs_to_jiffies [2022-11-22 01:27:07,415 INFO L138 BoogieDeclarations]: Found implementation of procedure msecs_to_jiffies [2022-11-22 01:27:07,415 INFO L130 BoogieDeclarations]: Found specification of procedure norm_maxh [2022-11-22 01:27:07,415 INFO L138 BoogieDeclarations]: Found implementation of procedure norm_maxh [2022-11-22 01:27:07,415 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2022-11-22 01:27:07,415 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2022-11-22 01:27:07,415 INFO L130 BoogieDeclarations]: Found specification of procedure get_resource [2022-11-22 01:27:07,415 INFO L138 BoogieDeclarations]: Found implementation of procedure get_resource [2022-11-22 01:27:07,416 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2022-11-22 01:27:07,416 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2022-11-22 01:27:07,416 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2022-11-22 01:27:07,416 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2022-11-22 01:27:07,416 INFO L130 BoogieDeclarations]: Found specification of procedure cx8800_initdev [2022-11-22 01:27:07,416 INFO L138 BoogieDeclarations]: Found implementation of procedure cx8800_initdev [2022-11-22 01:27:07,416 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-22 01:27:07,416 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2022-11-22 01:27:07,417 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2022-11-22 01:27:08,935 INFO L235 CfgBuilder]: Building ICFG [2022-11-22 01:27:08,938 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-22 01:27:09,370 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-22 01:27:40,078 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2022-11-22 01:27:40,253 INFO L276 CfgBuilder]: Performing block encoding [2022-11-22 01:27:42,230 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-22 01:27:42,230 INFO L300 CfgBuilder]: Removed 3 assume(true) statements. [2022-11-22 01:27:42,238 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:27:42 BoogieIcfgContainer [2022-11-22 01:27:42,239 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-22 01:27:42,242 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-22 01:27:42,242 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-22 01:27:42,246 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-22 01:27:42,246 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 01:27:00" (1/3) ... [2022-11-22 01:27:42,248 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@298d49dc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:27:42, skipping insertion in model container [2022-11-22 01:27:42,248 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:27:06" (2/3) ... [2022-11-22 01:27:42,249 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@298d49dc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:27:42, skipping insertion in model container [2022-11-22 01:27:42,249 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:27:42" (3/3) ... [2022-11-22 01:27:42,251 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-pci-cx88-cx8800.cil.i [2022-11-22 01:27:42,272 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-22 01:27:42,273 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2022-11-22 01:27:42,393 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-22 01:27:42,401 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@23ccd245, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-22 01:27:42,401 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-11-22 01:27:42,417 INFO L276 IsEmpty]: Start isEmpty. Operand has 2246 states, 1337 states have (on average 1.2976813762154076) internal successors, (1735), 1352 states have internal predecessors, (1735), 759 states have call successors, (759), 148 states have call predecessors, (759), 147 states have return successors, (752), 751 states have call predecessors, (752), 752 states have call successors, (752) [2022-11-22 01:27:42,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 516 [2022-11-22 01:27:42,464 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:27:42,465 INFO L195 NwaCegarLoop]: trace histogram [50, 49, 49, 49, 49, 49, 49, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:27:42,466 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-22 01:27:42,472 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:27:42,473 INFO L85 PathProgramCache]: Analyzing trace with hash 646976848, now seen corresponding path program 1 times [2022-11-22 01:27:42,483 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:27:42,484 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1694018663] [2022-11-22 01:27:42,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:27:42,486 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:27:43,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:27:44,468 INFO L134 CoverageAnalysis]: Checked inductivity of 9509 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9509 trivial. 0 not checked. [2022-11-22 01:27:44,468 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:27:44,469 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1694018663] [2022-11-22 01:27:44,469 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1694018663] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:27:44,470 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:27:44,470 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 01:27:44,476 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [250327091] [2022-11-22 01:27:44,481 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:27:44,491 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 01:27:44,492 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:27:44,537 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 01:27:44,538 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:27:44,545 INFO L87 Difference]: Start difference. First operand has 2246 states, 1337 states have (on average 1.2976813762154076) internal successors, (1735), 1352 states have internal predecessors, (1735), 759 states have call successors, (759), 148 states have call predecessors, (759), 147 states have return successors, (752), 751 states have call predecessors, (752), 752 states have call successors, (752) Second operand has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 3 states have call successors, (56), 2 states have call predecessors, (56), 1 states have return successors, (54), 3 states have call predecessors, (54), 3 states have call successors, (54) [2022-11-22 01:27:47,878 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.51s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-22 01:27:51,022 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.59s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-22 01:27:51,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:27:51,762 INFO L93 Difference]: Finished difference Result 6461 states and 9491 transitions. [2022-11-22 01:27:51,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 01:27:51,765 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 3 states have call successors, (56), 2 states have call predecessors, (56), 1 states have return successors, (54), 3 states have call predecessors, (54), 3 states have call successors, (54) Word has length 515 [2022-11-22 01:27:51,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:27:51,807 INFO L225 Difference]: With dead ends: 6461 [2022-11-22 01:27:51,808 INFO L226 Difference]: Without dead ends: 4303 [2022-11-22 01:27:51,825 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:27:51,828 INFO L413 NwaCegarLoop]: 3444 mSDtfsCounter, 3003 mSDsluCounter, 2727 mSDsCounter, 0 mSdLazyCounter, 958 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3003 SdHoareTripleChecker+Valid, 6171 SdHoareTripleChecker+Invalid, 973 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 958 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.7s IncrementalHoareTripleChecker+Time [2022-11-22 01:27:51,829 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3003 Valid, 6171 Invalid, 973 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [15 Valid, 958 Invalid, 0 Unknown, 0 Unchecked, 6.7s Time] [2022-11-22 01:27:51,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4303 states. [2022-11-22 01:27:52,168 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4303 to 4299. [2022-11-22 01:27:52,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4299 states, 2581 states have (on average 1.2932971716388997) internal successors, (3338), 2610 states have internal predecessors, (3338), 1425 states have call successors, (1425), 291 states have call predecessors, (1425), 290 states have return successors, (1421), 1419 states have call predecessors, (1421), 1421 states have call successors, (1421) [2022-11-22 01:27:52,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4299 states to 4299 states and 6184 transitions. [2022-11-22 01:27:52,217 INFO L78 Accepts]: Start accepts. Automaton has 4299 states and 6184 transitions. Word has length 515 [2022-11-22 01:27:52,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:27:52,219 INFO L495 AbstractCegarLoop]: Abstraction has 4299 states and 6184 transitions. [2022-11-22 01:27:52,219 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 3 states have call successors, (56), 2 states have call predecessors, (56), 1 states have return successors, (54), 3 states have call predecessors, (54), 3 states have call successors, (54) [2022-11-22 01:27:52,219 INFO L276 IsEmpty]: Start isEmpty. Operand 4299 states and 6184 transitions. [2022-11-22 01:27:52,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 526 [2022-11-22 01:27:52,351 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:27:52,352 INFO L195 NwaCegarLoop]: trace histogram [50, 49, 49, 49, 49, 49, 49, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:27:52,353 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-22 01:27:52,353 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-22 01:27:52,354 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:27:52,354 INFO L85 PathProgramCache]: Analyzing trace with hash 904987918, now seen corresponding path program 1 times [2022-11-22 01:27:52,354 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:27:52,355 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1962996888] [2022-11-22 01:27:52,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:27:52,355 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:27:52,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:27:53,417 INFO L134 CoverageAnalysis]: Checked inductivity of 9506 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9506 trivial. 0 not checked. [2022-11-22 01:27:53,418 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:27:53,420 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1962996888] [2022-11-22 01:27:53,423 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1962996888] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:27:53,423 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:27:53,423 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 01:27:53,424 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1086802508] [2022-11-22 01:27:53,424 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:27:53,426 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 01:27:53,427 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:27:53,427 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 01:27:53,427 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:27:53,428 INFO L87 Difference]: Start difference. First operand 4299 states and 6184 transitions. Second operand has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 3 states have call successors, (57), 2 states have call predecessors, (57), 1 states have return successors, (53), 3 states have call predecessors, (53), 3 states have call successors, (53) [2022-11-22 01:27:57,192 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-22 01:27:59,939 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:27:59,939 INFO L93 Difference]: Finished difference Result 12347 states and 17680 transitions. [2022-11-22 01:27:59,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 01:27:59,940 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 3 states have call successors, (57), 2 states have call predecessors, (57), 1 states have return successors, (53), 3 states have call predecessors, (53), 3 states have call successors, (53) Word has length 525 [2022-11-22 01:27:59,942 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:27:59,994 INFO L225 Difference]: With dead ends: 12347 [2022-11-22 01:27:59,995 INFO L226 Difference]: Without dead ends: 8147 [2022-11-22 01:28:00,022 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:28:00,023 INFO L413 NwaCegarLoop]: 3370 mSDtfsCounter, 2752 mSDsluCounter, 2691 mSDsCounter, 0 mSdLazyCounter, 993 mSolverCounterSat, 13 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2752 SdHoareTripleChecker+Valid, 6061 SdHoareTripleChecker+Invalid, 1007 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 993 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.0s IncrementalHoareTripleChecker+Time [2022-11-22 01:28:00,024 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2752 Valid, 6061 Invalid, 1007 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 993 Invalid, 1 Unknown, 0 Unchecked, 6.0s Time] [2022-11-22 01:28:00,036 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8147 states. [2022-11-22 01:28:00,444 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8147 to 8124. [2022-11-22 01:28:00,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8124 states, 4910 states have (on average 1.291038696537678) internal successors, (6339), 4970 states have internal predecessors, (6339), 2632 states have call successors, (2632), 580 states have call predecessors, (2632), 579 states have return successors, (2628), 2617 states have call predecessors, (2628), 2628 states have call successors, (2628) [2022-11-22 01:28:00,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8124 states to 8124 states and 11599 transitions. [2022-11-22 01:28:00,530 INFO L78 Accepts]: Start accepts. Automaton has 8124 states and 11599 transitions. Word has length 525 [2022-11-22 01:28:00,531 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:28:00,532 INFO L495 AbstractCegarLoop]: Abstraction has 8124 states and 11599 transitions. [2022-11-22 01:28:00,533 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 3 states have call successors, (57), 2 states have call predecessors, (57), 1 states have return successors, (53), 3 states have call predecessors, (53), 3 states have call successors, (53) [2022-11-22 01:28:00,533 INFO L276 IsEmpty]: Start isEmpty. Operand 8124 states and 11599 transitions. [2022-11-22 01:28:00,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 527 [2022-11-22 01:28:00,549 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:28:00,549 INFO L195 NwaCegarLoop]: trace histogram [50, 49, 49, 49, 49, 49, 49, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:28:00,549 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-22 01:28:00,550 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-22 01:28:00,559 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:28:00,560 INFO L85 PathProgramCache]: Analyzing trace with hash -391615212, now seen corresponding path program 1 times [2022-11-22 01:28:00,560 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:28:00,560 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1550900803] [2022-11-22 01:28:00,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:28:00,561 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:28:00,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:28:01,651 INFO L134 CoverageAnalysis]: Checked inductivity of 9506 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9506 trivial. 0 not checked. [2022-11-22 01:28:01,652 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:28:01,652 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1550900803] [2022-11-22 01:28:01,652 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1550900803] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:28:01,652 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:28:01,652 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 01:28:01,653 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [306443100] [2022-11-22 01:28:01,653 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:28:01,655 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 01:28:01,655 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:28:01,656 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 01:28:01,656 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:28:01,656 INFO L87 Difference]: Start difference. First operand 8124 states and 11599 transitions. Second operand has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 3 states have call successors, (57), 2 states have call predecessors, (57), 1 states have return successors, (53), 3 states have call predecessors, (53), 3 states have call successors, (53) [2022-11-22 01:28:07,815 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-22 01:28:08,760 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:28:08,764 INFO L93 Difference]: Finished difference Result 18787 states and 26732 transitions. [2022-11-22 01:28:08,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 01:28:08,765 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 3 states have call successors, (57), 2 states have call predecessors, (57), 1 states have return successors, (53), 3 states have call predecessors, (53), 3 states have call successors, (53) Word has length 526 [2022-11-22 01:28:08,768 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:28:08,854 INFO L225 Difference]: With dead ends: 18787 [2022-11-22 01:28:08,854 INFO L226 Difference]: Without dead ends: 10762 [2022-11-22 01:28:08,897 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:28:08,902 INFO L413 NwaCegarLoop]: 3373 mSDtfsCounter, 2762 mSDsluCounter, 2693 mSDsCounter, 0 mSdLazyCounter, 992 mSolverCounterSat, 13 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2762 SdHoareTripleChecker+Valid, 6066 SdHoareTripleChecker+Invalid, 1006 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 992 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.6s IncrementalHoareTripleChecker+Time [2022-11-22 01:28:08,903 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2762 Valid, 6066 Invalid, 1006 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 992 Invalid, 1 Unknown, 0 Unchecked, 6.6s Time] [2022-11-22 01:28:08,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10762 states. [2022-11-22 01:28:09,472 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10762 to 10741. [2022-11-22 01:28:09,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10741 states, 6489 states have (on average 1.2800123285560179) internal successors, (8306), 6584 states have internal predecessors, (8306), 3458 states have call successors, (3458), 792 states have call predecessors, (3458), 791 states have return successors, (3454), 3430 states have call predecessors, (3454), 3454 states have call successors, (3454) [2022-11-22 01:28:09,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10741 states to 10741 states and 15218 transitions. [2022-11-22 01:28:09,542 INFO L78 Accepts]: Start accepts. Automaton has 10741 states and 15218 transitions. Word has length 526 [2022-11-22 01:28:09,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:28:09,544 INFO L495 AbstractCegarLoop]: Abstraction has 10741 states and 15218 transitions. [2022-11-22 01:28:09,544 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 3 states have call successors, (57), 2 states have call predecessors, (57), 1 states have return successors, (53), 3 states have call predecessors, (53), 3 states have call successors, (53) [2022-11-22 01:28:09,544 INFO L276 IsEmpty]: Start isEmpty. Operand 10741 states and 15218 transitions. [2022-11-22 01:28:09,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 532 [2022-11-22 01:28:09,558 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:28:09,559 INFO L195 NwaCegarLoop]: trace histogram [50, 49, 49, 49, 49, 49, 49, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:28:09,560 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-22 01:28:09,560 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-22 01:28:09,561 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:28:09,561 INFO L85 PathProgramCache]: Analyzing trace with hash -2086612998, now seen corresponding path program 1 times [2022-11-22 01:28:09,562 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:28:09,562 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [349639369] [2022-11-22 01:28:09,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:28:09,562 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:28:09,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:28:10,693 INFO L134 CoverageAnalysis]: Checked inductivity of 9506 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9506 trivial. 0 not checked. [2022-11-22 01:28:10,693 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:28:10,694 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [349639369] [2022-11-22 01:28:10,694 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [349639369] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:28:10,694 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:28:10,694 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 01:28:10,694 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [702577706] [2022-11-22 01:28:10,695 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:28:10,696 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 01:28:10,696 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:28:10,697 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 01:28:10,697 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:28:10,697 INFO L87 Difference]: Start difference. First operand 10741 states and 15218 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, (58), 2 states have call predecessors, (58), 1 states have return successors, (53), 3 states have call predecessors, (53), 3 states have call successors, (53) [2022-11-22 01:28:13,810 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-22 01:28:18,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:28:18,897 INFO L93 Difference]: Finished difference Result 29970 states and 42489 transitions. [2022-11-22 01:28:18,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 01:28:18,898 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, (58), 2 states have call predecessors, (58), 1 states have return successors, (53), 3 states have call predecessors, (53), 3 states have call successors, (53) Word has length 531 [2022-11-22 01:28:18,899 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:28:19,042 INFO L225 Difference]: With dead ends: 29970 [2022-11-22 01:28:19,043 INFO L226 Difference]: Without dead ends: 19328 [2022-11-22 01:28:19,110 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:28:19,111 INFO L413 NwaCegarLoop]: 4362 mSDtfsCounter, 2810 mSDsluCounter, 2711 mSDsCounter, 0 mSdLazyCounter, 1203 mSolverCounterSat, 16 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2810 SdHoareTripleChecker+Valid, 7073 SdHoareTripleChecker+Invalid, 1220 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 1203 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.2s IncrementalHoareTripleChecker+Time [2022-11-22 01:28:19,111 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2810 Valid, 7073 Invalid, 1220 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 1203 Invalid, 1 Unknown, 0 Unchecked, 7.2s Time] [2022-11-22 01:28:19,139 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19328 states. [2022-11-22 01:28:20,394 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19328 to 19300. [2022-11-22 01:28:20,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19300 states, 11758 states have (on average 1.283636672903555) internal successors, (15093), 11931 states have internal predecessors, (15093), 6105 states have call successors, (6105), 1439 states have call predecessors, (6105), 1434 states have return successors, (6101), 6041 states have call predecessors, (6101), 6101 states have call successors, (6101) [2022-11-22 01:28:20,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19300 states to 19300 states and 27299 transitions. [2022-11-22 01:28:20,663 INFO L78 Accepts]: Start accepts. Automaton has 19300 states and 27299 transitions. Word has length 531 [2022-11-22 01:28:20,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:28:20,664 INFO L495 AbstractCegarLoop]: Abstraction has 19300 states and 27299 transitions. [2022-11-22 01:28:20,664 INFO L496 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, (58), 2 states have call predecessors, (58), 1 states have return successors, (53), 3 states have call predecessors, (53), 3 states have call successors, (53) [2022-11-22 01:28:20,665 INFO L276 IsEmpty]: Start isEmpty. Operand 19300 states and 27299 transitions. [2022-11-22 01:28:20,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 561 [2022-11-22 01:28:20,688 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:28:20,689 INFO L195 NwaCegarLoop]: trace histogram [53, 49, 49, 49, 49, 49, 49, 5, 5, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:28:20,690 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-22 01:28:20,690 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-22 01:28:20,691 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:28:20,691 INFO L85 PathProgramCache]: Analyzing trace with hash 956582100, now seen corresponding path program 1 times [2022-11-22 01:28:20,692 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:28:20,692 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1603126504] [2022-11-22 01:28:20,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:28:20,693 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:28:21,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:28:23,562 INFO L134 CoverageAnalysis]: Checked inductivity of 9846 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9846 trivial. 0 not checked. [2022-11-22 01:28:23,562 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:28:23,562 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1603126504] [2022-11-22 01:28:23,563 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1603126504] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:28:23,563 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:28:23,563 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-22 01:28:23,563 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1367305626] [2022-11-22 01:28:23,563 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:28:23,564 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-22 01:28:23,564 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:28:23,564 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-22 01:28:23,564 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-22 01:28:23,565 INFO L87 Difference]: Start difference. First operand 19300 states and 27299 transitions. Second operand has 5 states, 5 states have (on average 17.2) internal successors, (86), 4 states have internal predecessors, (86), 2 states have call successors, (62), 3 states have call predecessors, (62), 1 states have return successors, (60), 2 states have call predecessors, (60), 2 states have call successors, (60) [2022-11-22 01:28:29,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:28:29,638 INFO L93 Difference]: Finished difference Result 19306 states and 27304 transitions. [2022-11-22 01:28:29,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-22 01:28:29,639 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.2) internal successors, (86), 4 states have internal predecessors, (86), 2 states have call successors, (62), 3 states have call predecessors, (62), 1 states have return successors, (60), 2 states have call predecessors, (60), 2 states have call successors, (60) Word has length 560 [2022-11-22 01:28:29,641 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:28:29,757 INFO L225 Difference]: With dead ends: 19306 [2022-11-22 01:28:29,757 INFO L226 Difference]: Without dead ends: 19304 [2022-11-22 01:28:29,772 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-22 01:28:29,773 INFO L413 NwaCegarLoop]: 2746 mSDtfsCounter, 3087 mSDsluCounter, 5485 mSDsCounter, 0 mSdLazyCounter, 1405 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3092 SdHoareTripleChecker+Valid, 8231 SdHoareTripleChecker+Invalid, 1406 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1405 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2022-11-22 01:28:29,773 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3092 Valid, 8231 Invalid, 1406 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 1405 Invalid, 0 Unknown, 0 Unchecked, 5.4s Time] [2022-11-22 01:28:29,796 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19304 states. [2022-11-22 01:28:30,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19304 to 19304. [2022-11-22 01:28:30,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19304 states, 11761 states have (on average 1.28356432276167) internal successors, (15096), 11934 states have internal predecessors, (15096), 6105 states have call successors, (6105), 1440 states have call predecessors, (6105), 1435 states have return successors, (6101), 6041 states have call predecessors, (6101), 6101 states have call successors, (6101) [2022-11-22 01:28:31,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19304 states to 19304 states and 27302 transitions. [2022-11-22 01:28:31,076 INFO L78 Accepts]: Start accepts. Automaton has 19304 states and 27302 transitions. Word has length 560 [2022-11-22 01:28:31,077 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:28:31,078 INFO L495 AbstractCegarLoop]: Abstraction has 19304 states and 27302 transitions. [2022-11-22 01:28:31,078 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.2) internal successors, (86), 4 states have internal predecessors, (86), 2 states have call successors, (62), 3 states have call predecessors, (62), 1 states have return successors, (60), 2 states have call predecessors, (60), 2 states have call successors, (60) [2022-11-22 01:28:31,078 INFO L276 IsEmpty]: Start isEmpty. Operand 19304 states and 27302 transitions. [2022-11-22 01:28:31,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 566 [2022-11-22 01:28:31,088 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:28:31,088 INFO L195 NwaCegarLoop]: trace histogram [53, 49, 49, 49, 49, 49, 49, 5, 5, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:28:31,089 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-22 01:28:31,089 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-22 01:28:31,089 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:28:31,090 INFO L85 PathProgramCache]: Analyzing trace with hash 1232879696, now seen corresponding path program 1 times [2022-11-22 01:28:31,090 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:28:31,090 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1751725936] [2022-11-22 01:28:31,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:28:31,091 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:28:31,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:28:33,801 INFO L134 CoverageAnalysis]: Checked inductivity of 9848 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 9846 trivial. 0 not checked. [2022-11-22 01:28:33,801 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:28:33,801 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1751725936] [2022-11-22 01:28:33,801 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1751725936] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:28:33,802 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:28:33,802 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-22 01:28:33,802 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [583142540] [2022-11-22 01:28:33,802 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:28:33,803 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-22 01:28:33,803 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:28:33,803 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-22 01:28:33,804 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-22 01:28:33,804 INFO L87 Difference]: Start difference. First operand 19304 states and 27302 transitions. Second operand has 5 states, 5 states have (on average 17.8) internal successors, (89), 4 states have internal predecessors, (89), 2 states have call successors, (63), 3 states have call predecessors, (63), 1 states have return successors, (61), 2 states have call predecessors, (61), 2 states have call successors, (61) [2022-11-22 01:28:37,263 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-22 01:28:42,815 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-22 01:28:46,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:28:46,269 INFO L93 Difference]: Finished difference Result 33554 states and 47482 transitions. [2022-11-22 01:28:46,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-22 01:28:46,270 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.8) internal successors, (89), 4 states have internal predecessors, (89), 2 states have call successors, (63), 3 states have call predecessors, (63), 1 states have return successors, (61), 2 states have call predecessors, (61), 2 states have call successors, (61) Word has length 565 [2022-11-22 01:28:46,271 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:28:46,435 INFO L225 Difference]: With dead ends: 33554 [2022-11-22 01:28:46,435 INFO L226 Difference]: Without dead ends: 33552 [2022-11-22 01:28:46,452 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-22 01:28:46,453 INFO L413 NwaCegarLoop]: 3995 mSDtfsCounter, 3077 mSDsluCounter, 10580 mSDsCounter, 0 mSdLazyCounter, 2326 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3081 SdHoareTripleChecker+Valid, 14575 SdHoareTripleChecker+Invalid, 2329 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 2326 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.2s IncrementalHoareTripleChecker+Time [2022-11-22 01:28:46,454 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3081 Valid, 14575 Invalid, 2329 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 2326 Invalid, 1 Unknown, 0 Unchecked, 11.2s Time] [2022-11-22 01:28:46,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33552 states. [2022-11-22 01:28:48,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33552 to 33543. [2022-11-22 01:28:48,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33543 states, 20433 states have (on average 1.2852738217589195) internal successors, (26262), 20743 states have internal predecessors, (26262), 10610 states have call successors, (10610), 2507 states have call predecessors, (10610), 2497 states have return successors, (10602), 10485 states have call predecessors, (10602), 10602 states have call successors, (10602) [2022-11-22 01:28:48,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33543 states to 33543 states and 47474 transitions. [2022-11-22 01:28:48,520 INFO L78 Accepts]: Start accepts. Automaton has 33543 states and 47474 transitions. Word has length 565 [2022-11-22 01:28:48,521 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:28:48,521 INFO L495 AbstractCegarLoop]: Abstraction has 33543 states and 47474 transitions. [2022-11-22 01:28:48,521 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.8) internal successors, (89), 4 states have internal predecessors, (89), 2 states have call successors, (63), 3 states have call predecessors, (63), 1 states have return successors, (61), 2 states have call predecessors, (61), 2 states have call successors, (61) [2022-11-22 01:28:48,521 INFO L276 IsEmpty]: Start isEmpty. Operand 33543 states and 47474 transitions. [2022-11-22 01:28:48,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 572 [2022-11-22 01:28:48,533 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:28:48,534 INFO L195 NwaCegarLoop]: trace histogram [53, 49, 49, 49, 49, 49, 49, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:28:48,534 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-22 01:28:48,534 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-22 01:28:48,534 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:28:48,535 INFO L85 PathProgramCache]: Analyzing trace with hash 1948864279, now seen corresponding path program 1 times [2022-11-22 01:28:48,535 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:28:48,535 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2037486471] [2022-11-22 01:28:48,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:28:48,536 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:28:49,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:28:51,719 INFO L134 CoverageAnalysis]: Checked inductivity of 9851 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 9847 trivial. 0 not checked. [2022-11-22 01:28:51,719 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:28:51,720 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2037486471] [2022-11-22 01:28:51,720 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2037486471] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:28:51,720 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:28:51,720 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-22 01:28:51,720 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [486748865] [2022-11-22 01:28:51,721 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:28:51,721 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-22 01:28:51,722 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:28:51,722 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-22 01:28:51,722 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-22 01:28:51,723 INFO L87 Difference]: Start difference. First operand 33543 states and 47474 transitions. Second operand has 5 states, 5 states have (on average 17.4) internal successors, (87), 4 states have internal predecessors, (87), 2 states have call successors, (62), 3 states have call predecessors, (62), 1 states have return successors, (60), 2 states have call predecessors, (60), 2 states have call successors, (60) [2022-11-22 01:28:55,100 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-22 01:29:03,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:29:03,872 INFO L93 Difference]: Finished difference Result 54695 states and 77262 transitions. [2022-11-22 01:29:03,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-22 01:29:03,873 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.4) internal successors, (87), 4 states have internal predecessors, (87), 2 states have call successors, (62), 3 states have call predecessors, (62), 1 states have return successors, (60), 2 states have call predecessors, (60), 2 states have call successors, (60) Word has length 571 [2022-11-22 01:29:03,874 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:29:04,164 INFO L225 Difference]: With dead ends: 54695 [2022-11-22 01:29:04,165 INFO L226 Difference]: Without dead ends: 54693 [2022-11-22 01:29:04,194 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-22 01:29:04,194 INFO L413 NwaCegarLoop]: 3929 mSDtfsCounter, 2784 mSDsluCounter, 10429 mSDsCounter, 0 mSdLazyCounter, 2338 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2787 SdHoareTripleChecker+Valid, 14358 SdHoareTripleChecker+Invalid, 2342 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 2338 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.3s IncrementalHoareTripleChecker+Time [2022-11-22 01:29:04,195 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2787 Valid, 14358 Invalid, 2342 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3 Valid, 2338 Invalid, 1 Unknown, 0 Unchecked, 10.3s Time] [2022-11-22 01:29:04,252 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54693 states. [2022-11-22 01:29:06,812 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54693 to 54557. [2022-11-22 01:29:06,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54557 states, 33187 states have (on average 1.2843282008015187) internal successors, (42623), 33811 states have internal predecessors, (42623), 17114 states have call successors, (17114), 4338 states have call predecessors, (17114), 4253 states have return successors, (17362), 16672 states have call predecessors, (17362), 17102 states have call successors, (17362) [2022-11-22 01:29:07,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54557 states to 54557 states and 77099 transitions. [2022-11-22 01:29:07,232 INFO L78 Accepts]: Start accepts. Automaton has 54557 states and 77099 transitions. Word has length 571 [2022-11-22 01:29:07,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:29:07,234 INFO L495 AbstractCegarLoop]: Abstraction has 54557 states and 77099 transitions. [2022-11-22 01:29:07,234 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.4) internal successors, (87), 4 states have internal predecessors, (87), 2 states have call successors, (62), 3 states have call predecessors, (62), 1 states have return successors, (60), 2 states have call predecessors, (60), 2 states have call successors, (60) [2022-11-22 01:29:07,234 INFO L276 IsEmpty]: Start isEmpty. Operand 54557 states and 77099 transitions. [2022-11-22 01:29:07,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 577 [2022-11-22 01:29:07,253 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:29:07,253 INFO L195 NwaCegarLoop]: trace histogram [53, 49, 49, 49, 49, 49, 49, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:29:07,254 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-22 01:29:07,254 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-22 01:29:07,254 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:29:07,255 INFO L85 PathProgramCache]: Analyzing trace with hash -317072531, now seen corresponding path program 1 times [2022-11-22 01:29:07,255 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:29:07,255 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [444449818] [2022-11-22 01:29:07,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:29:07,256 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:29:07,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:29:10,249 INFO L134 CoverageAnalysis]: Checked inductivity of 9861 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 9855 trivial. 0 not checked. [2022-11-22 01:29:10,249 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:29:10,250 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [444449818] [2022-11-22 01:29:10,250 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [444449818] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:29:10,250 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:29:10,250 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-22 01:29:10,250 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1722702845] [2022-11-22 01:29:10,251 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:29:10,251 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-22 01:29:10,252 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:29:10,252 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-22 01:29:10,252 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-22 01:29:10,252 INFO L87 Difference]: Start difference. First operand 54557 states and 77099 transitions. Second operand has 5 states, 5 states have (on average 17.4) internal successors, (87), 4 states have internal predecessors, (87), 2 states have call successors, (63), 3 states have call predecessors, (63), 1 states have return successors, (61), 2 states have call predecessors, (61), 2 states have call successors, (61) [2022-11-22 01:29:17,576 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:29:17,576 INFO L93 Difference]: Finished difference Result 54571 states and 77112 transitions. [2022-11-22 01:29:17,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-22 01:29:17,577 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.4) internal successors, (87), 4 states have internal predecessors, (87), 2 states have call successors, (63), 3 states have call predecessors, (63), 1 states have return successors, (61), 2 states have call predecessors, (61), 2 states have call successors, (61) Word has length 576 [2022-11-22 01:29:17,579 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:29:17,888 INFO L225 Difference]: With dead ends: 54571 [2022-11-22 01:29:17,888 INFO L226 Difference]: Without dead ends: 54569 [2022-11-22 01:29:18,100 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-22 01:29:18,116 INFO L413 NwaCegarLoop]: 2749 mSDtfsCounter, 3083 mSDsluCounter, 5485 mSDsCounter, 0 mSdLazyCounter, 1405 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3085 SdHoareTripleChecker+Valid, 8234 SdHoareTripleChecker+Invalid, 1406 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1405 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2022-11-22 01:29:18,116 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3085 Valid, 8234 Invalid, 1406 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1405 Invalid, 0 Unknown, 0 Unchecked, 5.2s Time] [2022-11-22 01:29:18,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54569 states. [2022-11-22 01:29:20,915 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54569 to 54569. [2022-11-22 01:29:20,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54569 states, 33196 states have (on average 1.2842511145921196) internal successors, (42632), 33820 states have internal predecessors, (42632), 17114 states have call successors, (17114), 4341 states have call predecessors, (17114), 4256 states have return successors, (17362), 16672 states have call predecessors, (17362), 17102 states have call successors, (17362) [2022-11-22 01:29:21,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54569 states to 54569 states and 77108 transitions. [2022-11-22 01:29:21,332 INFO L78 Accepts]: Start accepts. Automaton has 54569 states and 77108 transitions. Word has length 576 [2022-11-22 01:29:21,341 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:29:21,341 INFO L495 AbstractCegarLoop]: Abstraction has 54569 states and 77108 transitions. [2022-11-22 01:29:21,342 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.4) internal successors, (87), 4 states have internal predecessors, (87), 2 states have call successors, (63), 3 states have call predecessors, (63), 1 states have return successors, (61), 2 states have call predecessors, (61), 2 states have call successors, (61) [2022-11-22 01:29:21,342 INFO L276 IsEmpty]: Start isEmpty. Operand 54569 states and 77108 transitions. [2022-11-22 01:29:21,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 586 [2022-11-22 01:29:21,365 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:29:21,366 INFO L195 NwaCegarLoop]: trace histogram [51, 49, 49, 49, 49, 49, 49, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:29:21,366 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-22 01:29:21,366 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-22 01:29:21,366 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:29:21,367 INFO L85 PathProgramCache]: Analyzing trace with hash 1155563766, now seen corresponding path program 1 times [2022-11-22 01:29:21,367 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:29:21,367 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1900515710] [2022-11-22 01:29:21,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:29:21,367 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:29:21,614 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-22 01:29:21,614 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2146848139] [2022-11-22 01:29:21,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:29:21,615 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:29:21,615 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_260883fd-14e1-4abb-a988-d7b587926116/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:29:21,623 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_260883fd-14e1-4abb-a988-d7b587926116/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 01:29:21,624 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_260883fd-14e1-4abb-a988-d7b587926116/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-22 01:29:24,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:29:24,421 INFO L263 TraceCheckSpWp]: Trace formula consists of 9046 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-22 01:29:24,456 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:29:24,694 INFO L134 CoverageAnalysis]: Checked inductivity of 9643 backedges. 196 proven. 0 refuted. 0 times theorem prover too weak. 9447 trivial. 0 not checked. [2022-11-22 01:29:24,694 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-22 01:29:24,695 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:29:24,695 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1900515710] [2022-11-22 01:29:24,695 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-22 01:29:24,695 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2146848139] [2022-11-22 01:29:24,696 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2146848139] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:29:24,696 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:29:24,696 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 01:29:24,696 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [61284378] [2022-11-22 01:29:24,697 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:29:24,698 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 01:29:24,698 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:29:24,698 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 01:29:24,698 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:29:24,699 INFO L87 Difference]: Start difference. First operand 54569 states and 77108 transitions. Second operand has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 3 states have call successors, (64), 3 states have call predecessors, (64), 3 states have return successors, (60), 3 states have call predecessors, (60), 3 states have call successors, (60) [2022-11-22 01:29:27,472 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-22 01:29:33,546 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:29:33,547 INFO L93 Difference]: Finished difference Result 111356 states and 157246 transitions. [2022-11-22 01:29:33,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 01:29:33,551 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 3 states have call successors, (64), 3 states have call predecessors, (64), 3 states have return successors, (60), 3 states have call predecessors, (60), 3 states have call successors, (60) Word has length 585 [2022-11-22 01:29:33,552 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:29:33,902 INFO L225 Difference]: With dead ends: 111356 [2022-11-22 01:29:33,902 INFO L226 Difference]: Without dead ends: 75654 [2022-11-22 01:29:34,034 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 584 GetRequests, 583 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:29:34,037 INFO L413 NwaCegarLoop]: 3729 mSDtfsCounter, 2868 mSDsluCounter, 2609 mSDsCounter, 0 mSdLazyCounter, 1122 mSolverCounterSat, 42 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2868 SdHoareTripleChecker+Valid, 6338 SdHoareTripleChecker+Invalid, 1165 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 1122 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2022-11-22 01:29:34,037 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2868 Valid, 6338 Invalid, 1165 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [42 Valid, 1122 Invalid, 1 Unknown, 0 Unchecked, 5.5s Time] [2022-11-22 01:29:34,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75654 states. [2022-11-22 01:29:38,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75654 to 75561. [2022-11-22 01:29:38,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75561 states, 46144 states have (on average 1.2847174063800277) internal successors, (59282), 46991 states have internal predecessors, (59282), 23326 states have call successors, (23326), 6209 states have call predecessors, (23326), 6088 states have return successors, (23676), 22719 states have call predecessors, (23676), 23314 states have call successors, (23676) [2022-11-22 01:29:38,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75561 states to 75561 states and 106284 transitions. [2022-11-22 01:29:38,771 INFO L78 Accepts]: Start accepts. Automaton has 75561 states and 106284 transitions. Word has length 585 [2022-11-22 01:29:38,772 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:29:38,772 INFO L495 AbstractCegarLoop]: Abstraction has 75561 states and 106284 transitions. [2022-11-22 01:29:38,772 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 3 states have call successors, (64), 3 states have call predecessors, (64), 3 states have return successors, (60), 3 states have call predecessors, (60), 3 states have call successors, (60) [2022-11-22 01:29:38,772 INFO L276 IsEmpty]: Start isEmpty. Operand 75561 states and 106284 transitions. [2022-11-22 01:29:38,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 581 [2022-11-22 01:29:38,786 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:29:38,787 INFO L195 NwaCegarLoop]: trace histogram [53, 49, 49, 49, 49, 49, 49, 5, 5, 5, 4, 4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:29:38,819 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_260883fd-14e1-4abb-a988-d7b587926116/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-22 01:29:39,003 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_260883fd-14e1-4abb-a988-d7b587926116/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:29:39,004 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-22 01:29:39,004 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:29:39,004 INFO L85 PathProgramCache]: Analyzing trace with hash -682020012, now seen corresponding path program 1 times [2022-11-22 01:29:39,004 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:29:39,005 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [26435730] [2022-11-22 01:29:39,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:29:39,005 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:29:39,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat