./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-platform-vsp1-vsp1.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 839c364b Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbdbf2d8-58b3-42ce-9eca-4b30f1d0ad8f/bin/utaipan-eEHZpOm5b7/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbdbf2d8-58b3-42ce-9eca-4b30f1d0ad8f/bin/utaipan-eEHZpOm5b7/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbdbf2d8-58b3-42ce-9eca-4b30f1d0ad8f/bin/utaipan-eEHZpOm5b7/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbdbf2d8-58b3-42ce-9eca-4b30f1d0ad8f/bin/utaipan-eEHZpOm5b7/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-platform-vsp1-vsp1.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbdbf2d8-58b3-42ce-9eca-4b30f1d0ad8f/bin/utaipan-eEHZpOm5b7/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbdbf2d8-58b3-42ce-9eca-4b30f1d0ad8f/bin/utaipan-eEHZpOm5b7 --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 8ac7ef6163593244979442da2bd08044f9730d00931e1e4e35783fd5a897b362 --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-11-25 19:07:51,871 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-25 19:07:51,875 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-25 19:07:51,923 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-25 19:07:51,924 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-25 19:07:51,926 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-25 19:07:51,928 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-25 19:07:51,931 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-25 19:07:51,933 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-25 19:07:51,935 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-25 19:07:51,936 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-25 19:07:51,938 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-25 19:07:51,938 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-25 19:07:51,940 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-25 19:07:51,942 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-25 19:07:51,944 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-25 19:07:51,945 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-25 19:07:51,947 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-25 19:07:51,950 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-25 19:07:51,953 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-25 19:07:51,956 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-25 19:07:51,958 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-25 19:07:51,960 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-25 19:07:51,961 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-25 19:07:51,966 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-25 19:07:51,966 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-25 19:07:51,967 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-25 19:07:51,968 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-25 19:07:51,969 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-25 19:07:51,971 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-25 19:07:51,971 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-25 19:07:51,972 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-25 19:07:51,973 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-25 19:07:51,975 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-25 19:07:51,976 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-25 19:07:51,977 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-25 19:07:51,978 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-25 19:07:51,978 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-25 19:07:51,979 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-25 19:07:51,980 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-25 19:07:51,981 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-25 19:07:51,983 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbdbf2d8-58b3-42ce-9eca-4b30f1d0ad8f/bin/utaipan-eEHZpOm5b7/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-25 19:07:52,017 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-25 19:07:52,018 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-25 19:07:52,018 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-25 19:07:52,019 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-25 19:07:52,020 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-25 19:07:52,020 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-25 19:07:52,021 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-25 19:07:52,021 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-25 19:07:52,021 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-25 19:07:52,022 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-25 19:07:52,022 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-25 19:07:52,022 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-25 19:07:52,031 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-25 19:07:52,031 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-25 19:07:52,031 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-25 19:07:52,032 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-25 19:07:52,032 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-25 19:07:52,032 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-25 19:07:52,033 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-25 19:07:52,034 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-25 19:07:52,034 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-25 19:07:52,034 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-25 19:07:52,035 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-25 19:07:52,035 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-25 19:07:52,036 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-25 19:07:52,036 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-25 19:07:52,038 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-25 19:07:52,038 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-25 19:07:52,039 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-25 19:07:52,039 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-25 19:07:52,040 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-25 19:07:52,040 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-25 19:07:52,041 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-25 19:07:52,041 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-25 19:07:52,041 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-25 19:07:52,042 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-25 19:07:52,043 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-25 19:07:52,043 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-25 19:07:52,043 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_dbdbf2d8-58b3-42ce-9eca-4b30f1d0ad8f/bin/utaipan-eEHZpOm5b7/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbdbf2d8-58b3-42ce-9eca-4b30f1d0ad8f/bin/utaipan-eEHZpOm5b7 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8ac7ef6163593244979442da2bd08044f9730d00931e1e4e35783fd5a897b362 [2021-11-25 19:07:52,315 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-25 19:07:52,342 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-25 19:07:52,345 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-25 19:07:52,347 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-25 19:07:52,348 INFO L275 PluginConnector]: CDTParser initialized [2021-11-25 19:07:52,349 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbdbf2d8-58b3-42ce-9eca-4b30f1d0ad8f/bin/utaipan-eEHZpOm5b7/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-platform-vsp1-vsp1.cil.i [2021-11-25 19:07:52,406 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbdbf2d8-58b3-42ce-9eca-4b30f1d0ad8f/bin/utaipan-eEHZpOm5b7/data/8c71c4f37/4c1ac9b636704e1a9cb5c214847e5f3e/FLAG6195e2c67 [2021-11-25 19:07:53,555 INFO L306 CDTParser]: Found 1 translation units. [2021-11-25 19:07:53,556 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbdbf2d8-58b3-42ce-9eca-4b30f1d0ad8f/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-platform-vsp1-vsp1.cil.i [2021-11-25 19:07:53,649 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbdbf2d8-58b3-42ce-9eca-4b30f1d0ad8f/bin/utaipan-eEHZpOm5b7/data/8c71c4f37/4c1ac9b636704e1a9cb5c214847e5f3e/FLAG6195e2c67 [2021-11-25 19:07:53,934 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbdbf2d8-58b3-42ce-9eca-4b30f1d0ad8f/bin/utaipan-eEHZpOm5b7/data/8c71c4f37/4c1ac9b636704e1a9cb5c214847e5f3e [2021-11-25 19:07:53,936 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-25 19:07:53,938 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-25 19:07:53,940 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-25 19:07:53,940 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-25 19:07:53,944 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-25 19:07:53,945 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 07:07:53" (1/1) ... [2021-11-25 19:07:53,946 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@32f61ea3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:07:53, skipping insertion in model container [2021-11-25 19:07:53,946 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 07:07:53" (1/1) ... [2021-11-25 19:07:53,954 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-25 19:07:54,155 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-25 19:08:00,077 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbdbf2d8-58b3-42ce-9eca-4b30f1d0ad8f/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-platform-vsp1-vsp1.cil.i[588330,588343] [2021-11-25 19:08:00,079 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbdbf2d8-58b3-42ce-9eca-4b30f1d0ad8f/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-platform-vsp1-vsp1.cil.i[588499,588512] [2021-11-25 19:08:00,080 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbdbf2d8-58b3-42ce-9eca-4b30f1d0ad8f/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-platform-vsp1-vsp1.cil.i[588666,588679] [2021-11-25 19:08:00,081 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbdbf2d8-58b3-42ce-9eca-4b30f1d0ad8f/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-platform-vsp1-vsp1.cil.i[588834,588847] [2021-11-25 19:08:00,100 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-25 19:08:00,174 INFO L203 MainTranslator]: Completed pre-run [2021-11-25 19:08:00,952 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbdbf2d8-58b3-42ce-9eca-4b30f1d0ad8f/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-platform-vsp1-vsp1.cil.i[588330,588343] [2021-11-25 19:08:00,953 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbdbf2d8-58b3-42ce-9eca-4b30f1d0ad8f/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-platform-vsp1-vsp1.cil.i[588499,588512] [2021-11-25 19:08:00,953 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbdbf2d8-58b3-42ce-9eca-4b30f1d0ad8f/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-platform-vsp1-vsp1.cil.i[588666,588679] [2021-11-25 19:08:00,954 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbdbf2d8-58b3-42ce-9eca-4b30f1d0ad8f/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-platform-vsp1-vsp1.cil.i[588834,588847] [2021-11-25 19:08:00,966 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-25 19:08:01,506 INFO L208 MainTranslator]: Completed translation [2021-11-25 19:08:01,506 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:08:01 WrapperNode [2021-11-25 19:08:01,506 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-25 19:08:01,508 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-25 19:08:01,508 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-25 19:08:01,508 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-25 19:08:01,517 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:08:01" (1/1) ... [2021-11-25 19:08:01,748 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:08:01" (1/1) ... [2021-11-25 19:08:02,124 INFO L137 Inliner]: procedures = 710, calls = 4743, calls flagged for inlining = 342, calls inlined = 329, statements flattened = 9439 [2021-11-25 19:08:02,125 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-25 19:08:02,126 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-25 19:08:02,127 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-25 19:08:02,128 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-25 19:08:02,141 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:08:01" (1/1) ... [2021-11-25 19:08:02,141 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:08:01" (1/1) ... [2021-11-25 19:08:02,232 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:08:01" (1/1) ... [2021-11-25 19:08:02,246 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:08:01" (1/1) ... [2021-11-25 19:08:02,607 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:08:01" (1/1) ... [2021-11-25 19:08:02,651 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:08:01" (1/1) ... [2021-11-25 19:08:02,750 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:08:01" (1/1) ... [2021-11-25 19:08:02,808 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-25 19:08:02,809 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-25 19:08:02,809 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-25 19:08:02,810 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-25 19:08:02,811 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:08:01" (1/1) ... [2021-11-25 19:08:02,818 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-25 19:08:02,938 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbdbf2d8-58b3-42ce-9eca-4b30f1d0ad8f/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 19:08:02,959 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbdbf2d8-58b3-42ce-9eca-4b30f1d0ad8f/bin/utaipan-eEHZpOm5b7/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-25 19:08:02,979 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbdbf2d8-58b3-42ce-9eca-4b30f1d0ad8f/bin/utaipan-eEHZpOm5b7/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-25 19:08:03,010 INFO L130 BoogieDeclarations]: Found specification of procedure vsp1_destroy_entities [2021-11-25 19:08:03,010 INFO L138 BoogieDeclarations]: Found implementation of procedure vsp1_destroy_entities [2021-11-25 19:08:03,010 INFO L130 BoogieDeclarations]: Found specification of procedure lif_s_stream [2021-11-25 19:08:03,011 INFO L138 BoogieDeclarations]: Found implementation of procedure lif_s_stream [2021-11-25 19:08:03,011 INFO L130 BoogieDeclarations]: Found specification of procedure uds_enum_mbus_code [2021-11-25 19:08:03,011 INFO L138 BoogieDeclarations]: Found implementation of procedure uds_enum_mbus_code [2021-11-25 19:08:03,011 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-11-25 19:08:03,011 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-11-25 19:08:03,012 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_irqlock_of_vsp1_video [2021-11-25 19:08:03,012 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_irqlock_of_vsp1_video [2021-11-25 19:08:03,012 INFO L130 BoogieDeclarations]: Found specification of procedure vb2_ioctl_prepare_buf [2021-11-25 19:08:03,012 INFO L138 BoogieDeclarations]: Found implementation of procedure vb2_ioctl_prepare_buf [2021-11-25 19:08:03,012 INFO L130 BoogieDeclarations]: Found specification of procedure vb2_ioctl_dqbuf [2021-11-25 19:08:03,013 INFO L138 BoogieDeclarations]: Found implementation of procedure vb2_ioctl_dqbuf [2021-11-25 19:08:03,013 INFO L130 BoogieDeclarations]: Found specification of procedure hsit_get_format [2021-11-25 19:08:03,013 INFO L138 BoogieDeclarations]: Found implementation of procedure hsit_get_format [2021-11-25 19:08:03,013 INFO L130 BoogieDeclarations]: Found specification of procedure sru_enum_frame_size [2021-11-25 19:08:03,013 INFO L138 BoogieDeclarations]: Found implementation of procedure sru_enum_frame_size [2021-11-25 19:08:03,014 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-25 19:08:03,014 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-25 19:08:03,014 INFO L130 BoogieDeclarations]: Found specification of procedure to_uds [2021-11-25 19:08:03,014 INFO L138 BoogieDeclarations]: Found implementation of procedure to_uds [2021-11-25 19:08:03,014 INFO L130 BoogieDeclarations]: Found specification of procedure to_vsp1_video [2021-11-25 19:08:03,015 INFO L138 BoogieDeclarations]: Found implementation of procedure to_vsp1_video [2021-11-25 19:08:03,015 INFO L130 BoogieDeclarations]: Found specification of procedure vsp1_video_buffer_prepare [2021-11-25 19:08:03,015 INFO L138 BoogieDeclarations]: Found implementation of procedure vsp1_video_buffer_prepare [2021-11-25 19:08:03,015 INFO L130 BoogieDeclarations]: Found specification of procedure media_entity_remote_pad [2021-11-25 19:08:03,015 INFO L138 BoogieDeclarations]: Found implementation of procedure media_entity_remote_pad [2021-11-25 19:08:03,016 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2021-11-25 19:08:03,016 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2021-11-25 19:08:03,016 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~TO~int [2021-11-25 19:08:03,016 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~TO~int [2021-11-25 19:08:03,016 INFO L130 BoogieDeclarations]: Found specification of procedure vsp1_entity_init_formats [2021-11-25 19:08:03,017 INFO L138 BoogieDeclarations]: Found implementation of procedure vsp1_entity_init_formats [2021-11-25 19:08:03,017 INFO L130 BoogieDeclarations]: Found specification of procedure vsp1_entity_init [2021-11-25 19:08:03,017 INFO L138 BoogieDeclarations]: Found implementation of procedure vsp1_entity_init [2021-11-25 19:08:03,017 INFO L130 BoogieDeclarations]: Found specification of procedure uds_try_format [2021-11-25 19:08:03,017 INFO L138 BoogieDeclarations]: Found implementation of procedure uds_try_format [2021-11-25 19:08:03,018 INFO L130 BoogieDeclarations]: Found specification of procedure uds_enum_frame_size [2021-11-25 19:08:03,018 INFO L138 BoogieDeclarations]: Found implementation of procedure uds_enum_frame_size [2021-11-25 19:08:03,018 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2021-11-25 19:08:03,018 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2021-11-25 19:08:03,018 INFO L130 BoogieDeclarations]: Found specification of procedure to_lut [2021-11-25 19:08:03,018 INFO L138 BoogieDeclarations]: Found implementation of procedure to_lut [2021-11-25 19:08:03,019 INFO L130 BoogieDeclarations]: Found specification of procedure sru_enum_mbus_code [2021-11-25 19:08:03,019 INFO L138 BoogieDeclarations]: Found implementation of procedure sru_enum_mbus_code [2021-11-25 19:08:03,019 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_51 [2021-11-25 19:08:03,019 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_51 [2021-11-25 19:08:03,019 INFO L130 BoogieDeclarations]: Found specification of procedure lut_get_format [2021-11-25 19:08:03,020 INFO L138 BoogieDeclarations]: Found implementation of procedure lut_get_format [2021-11-25 19:08:03,020 INFO L130 BoogieDeclarations]: Found specification of procedure sru_get_format [2021-11-25 19:08:03,020 INFO L138 BoogieDeclarations]: Found implementation of procedure sru_get_format [2021-11-25 19:08:03,020 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_53 [2021-11-25 19:08:03,020 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_53 [2021-11-25 19:08:03,021 INFO L130 BoogieDeclarations]: Found specification of procedure vsp1_read [2021-11-25 19:08:03,021 INFO L138 BoogieDeclarations]: Found implementation of procedure vsp1_read [2021-11-25 19:08:03,021 INFO L130 BoogieDeclarations]: Found specification of procedure vsp1_irq_handler [2021-11-25 19:08:03,021 INFO L138 BoogieDeclarations]: Found implementation of procedure vsp1_irq_handler [2021-11-25 19:08:03,021 INFO L130 BoogieDeclarations]: Found specification of procedure vsp1_rwpf_enum_frame_size [2021-11-25 19:08:03,021 INFO L138 BoogieDeclarations]: Found implementation of procedure vsp1_rwpf_enum_frame_size [2021-11-25 19:08:03,022 INFO L130 BoogieDeclarations]: Found specification of procedure vsp1_video_frame_end [2021-11-25 19:08:03,022 INFO L138 BoogieDeclarations]: Found implementation of procedure vsp1_video_frame_end [2021-11-25 19:08:03,022 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-11-25 19:08:03,022 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2021-11-25 19:08:03,022 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2021-11-25 19:08:03,022 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2021-11-25 19:08:03,023 INFO L130 BoogieDeclarations]: Found specification of procedure vb2_dma_contig_cleanup_ctx [2021-11-25 19:08:03,023 INFO L138 BoogieDeclarations]: Found implementation of procedure vb2_dma_contig_cleanup_ctx [2021-11-25 19:08:03,023 INFO L130 BoogieDeclarations]: Found specification of procedure wpf_s_stream [2021-11-25 19:08:03,023 INFO L138 BoogieDeclarations]: Found implementation of procedure wpf_s_stream [2021-11-25 19:08:03,023 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-11-25 19:08:03,023 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-11-25 19:08:03,024 INFO L130 BoogieDeclarations]: Found specification of procedure vsp1_rwpf_get_selection [2021-11-25 19:08:03,024 INFO L138 BoogieDeclarations]: Found implementation of procedure vsp1_rwpf_get_selection [2021-11-25 19:08:03,024 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2021-11-25 19:08:03,024 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2021-11-25 19:08:03,024 INFO L130 BoogieDeclarations]: Found specification of procedure uds_s_stream [2021-11-25 19:08:03,024 INFO L138 BoogieDeclarations]: Found implementation of procedure uds_s_stream [2021-11-25 19:08:03,025 INFO L130 BoogieDeclarations]: Found specification of procedure platform_get_resource [2021-11-25 19:08:03,025 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_get_resource [2021-11-25 19:08:03,025 INFO L130 BoogieDeclarations]: Found specification of procedure vsp1_uds_write [2021-11-25 19:08:03,025 INFO L138 BoogieDeclarations]: Found implementation of procedure vsp1_uds_write [2021-11-25 19:08:03,025 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-25 19:08:03,025 INFO L130 BoogieDeclarations]: Found specification of procedure vsp1_pipeline_cleanup [2021-11-25 19:08:03,026 INFO L138 BoogieDeclarations]: Found implementation of procedure vsp1_pipeline_cleanup [2021-11-25 19:08:03,026 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2021-11-25 19:08:03,026 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2021-11-25 19:08:03,026 INFO L130 BoogieDeclarations]: Found specification of procedure clk_unprepare [2021-11-25 19:08:03,026 INFO L138 BoogieDeclarations]: Found implementation of procedure clk_unprepare [2021-11-25 19:08:03,026 INFO L130 BoogieDeclarations]: Found specification of procedure sru_s_stream [2021-11-25 19:08:03,027 INFO L138 BoogieDeclarations]: Found implementation of procedure sru_s_stream [2021-11-25 19:08:03,027 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2021-11-25 19:08:03,027 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2021-11-25 19:08:03,027 INFO L130 BoogieDeclarations]: Found specification of procedure vsp1_rwpf_get_format [2021-11-25 19:08:03,027 INFO L138 BoogieDeclarations]: Found implementation of procedure vsp1_rwpf_get_format [2021-11-25 19:08:03,027 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~TO~int [2021-11-25 19:08:03,028 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~TO~int [2021-11-25 19:08:03,028 INFO L130 BoogieDeclarations]: Found specification of procedure vb2_ioctl_reqbufs [2021-11-25 19:08:03,028 INFO L138 BoogieDeclarations]: Found implementation of procedure vb2_ioctl_reqbufs [2021-11-25 19:08:03,028 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_is_locked [2021-11-25 19:08:03,028 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_is_locked [2021-11-25 19:08:03,028 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2021-11-25 19:08:03,029 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2021-11-25 19:08:03,029 INFO L130 BoogieDeclarations]: Found specification of procedure to_rwpf [2021-11-25 19:08:03,029 INFO L138 BoogieDeclarations]: Found implementation of procedure to_rwpf [2021-11-25 19:08:03,029 INFO L130 BoogieDeclarations]: Found specification of procedure vsp1_get_format_info [2021-11-25 19:08:03,029 INFO L138 BoogieDeclarations]: Found implementation of procedure vsp1_get_format_info [2021-11-25 19:08:03,030 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-25 19:08:03,030 INFO L130 BoogieDeclarations]: Found specification of procedure hsit_enum_mbus_code [2021-11-25 19:08:03,030 INFO L138 BoogieDeclarations]: Found implementation of procedure hsit_enum_mbus_code [2021-11-25 19:08:03,030 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2021-11-25 19:08:03,030 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2021-11-25 19:08:03,030 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2021-11-25 19:08:03,031 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2021-11-25 19:08:03,031 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2021-11-25 19:08:03,031 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2021-11-25 19:08:03,031 INFO L130 BoogieDeclarations]: Found specification of procedure vsp1_pipeline_ready [2021-11-25 19:08:03,031 INFO L138 BoogieDeclarations]: Found implementation of procedure vsp1_pipeline_ready [2021-11-25 19:08:03,031 INFO L130 BoogieDeclarations]: Found specification of procedure sru_s_ctrl [2021-11-25 19:08:03,032 INFO L138 BoogieDeclarations]: Found implementation of procedure sru_s_ctrl [2021-11-25 19:08:03,032 INFO L130 BoogieDeclarations]: Found specification of procedure vsp1_rwpf_set_selection [2021-11-25 19:08:03,032 INFO L138 BoogieDeclarations]: Found implementation of procedure vsp1_rwpf_set_selection [2021-11-25 19:08:03,032 INFO L130 BoogieDeclarations]: Found specification of procedure vsp1_hsit_write [2021-11-25 19:08:03,032 INFO L138 BoogieDeclarations]: Found implementation of procedure vsp1_hsit_write [2021-11-25 19:08:03,032 INFO L130 BoogieDeclarations]: Found specification of procedure vsp1_video_set_format [2021-11-25 19:08:03,033 INFO L138 BoogieDeclarations]: Found implementation of procedure vsp1_video_set_format [2021-11-25 19:08:03,033 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2021-11-25 19:08:03,033 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2021-11-25 19:08:03,033 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-25 19:08:03,033 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2021-11-25 19:08:03,033 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2021-11-25 19:08:03,034 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2021-11-25 19:08:03,034 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2021-11-25 19:08:03,034 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_3 [2021-11-25 19:08:03,034 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_3 [2021-11-25 19:08:03,034 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_5 [2021-11-25 19:08:03,034 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_5 [2021-11-25 19:08:03,034 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_4 [2021-11-25 19:08:03,035 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_4 [2021-11-25 19:08:03,035 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_7 [2021-11-25 19:08:03,035 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_7 [2021-11-25 19:08:03,035 INFO L130 BoogieDeclarations]: Found specification of procedure lif_enum_frame_size [2021-11-25 19:08:03,035 INFO L138 BoogieDeclarations]: Found implementation of procedure lif_enum_frame_size [2021-11-25 19:08:03,035 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_6 [2021-11-25 19:08:03,035 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_6 [2021-11-25 19:08:03,036 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-25 19:08:03,036 INFO L130 BoogieDeclarations]: Found specification of procedure sru_set_format [2021-11-25 19:08:03,036 INFO L138 BoogieDeclarations]: Found implementation of procedure sru_set_format [2021-11-25 19:08:03,036 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-11-25 19:08:03,036 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-11-25 19:08:03,036 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-25 19:08:03,036 INFO L130 BoogieDeclarations]: Found specification of procedure to_hsit [2021-11-25 19:08:03,037 INFO L138 BoogieDeclarations]: Found implementation of procedure to_hsit [2021-11-25 19:08:03,037 INFO L130 BoogieDeclarations]: Found specification of procedure vsp1_write [2021-11-25 19:08:03,037 INFO L138 BoogieDeclarations]: Found implementation of procedure vsp1_write [2021-11-25 19:08:03,037 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-11-25 19:08:03,037 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-11-25 19:08:03,037 INFO L130 BoogieDeclarations]: Found specification of procedure vsp1_video_start_streaming [2021-11-25 19:08:03,037 INFO L138 BoogieDeclarations]: Found implementation of procedure vsp1_video_start_streaming [2021-11-25 19:08:03,038 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2021-11-25 19:08:03,038 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2021-11-25 19:08:03,038 INFO L130 BoogieDeclarations]: Found specification of procedure video_get_drvdata___1 [2021-11-25 19:08:03,038 INFO L138 BoogieDeclarations]: Found implementation of procedure video_get_drvdata___1 [2021-11-25 19:08:03,038 INFO L130 BoogieDeclarations]: Found specification of procedure vsp1_video_get_format [2021-11-25 19:08:03,038 INFO L138 BoogieDeclarations]: Found implementation of procedure vsp1_video_get_format [2021-11-25 19:08:03,039 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_irqlock_of_vsp1_pipeline [2021-11-25 19:08:03,039 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_irqlock_of_vsp1_pipeline [2021-11-25 19:08:03,039 INFO L130 BoogieDeclarations]: Found specification of procedure vsp1_video_open [2021-11-25 19:08:03,039 INFO L138 BoogieDeclarations]: Found implementation of procedure vsp1_video_open [2021-11-25 19:08:03,039 INFO L130 BoogieDeclarations]: Found specification of procedure to_vsp1_video_buffer [2021-11-25 19:08:03,039 INFO L138 BoogieDeclarations]: Found implementation of procedure to_vsp1_video_buffer [2021-11-25 19:08:03,039 INFO L130 BoogieDeclarations]: Found specification of procedure to_vsp1_pipeline [2021-11-25 19:08:03,040 INFO L138 BoogieDeclarations]: Found implementation of procedure to_vsp1_pipeline [2021-11-25 19:08:03,040 INFO L130 BoogieDeclarations]: Found specification of procedure rpf_vdev_queue [2021-11-25 19:08:03,040 INFO L138 BoogieDeclarations]: Found implementation of procedure rpf_vdev_queue [2021-11-25 19:08:03,040 INFO L130 BoogieDeclarations]: Found specification of procedure media_entity_type [2021-11-25 19:08:03,040 INFO L138 BoogieDeclarations]: Found implementation of procedure media_entity_type [2021-11-25 19:08:03,040 INFO L130 BoogieDeclarations]: Found specification of procedure devm_kzalloc [2021-11-25 19:08:03,040 INFO L138 BoogieDeclarations]: Found implementation of procedure devm_kzalloc [2021-11-25 19:08:03,041 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2021-11-25 19:08:03,041 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2021-11-25 19:08:03,041 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-11-25 19:08:03,041 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-11-25 19:08:03,041 INFO L130 BoogieDeclarations]: Found specification of procedure dev_name [2021-11-25 19:08:03,041 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_name [2021-11-25 19:08:03,042 INFO L130 BoogieDeclarations]: Found specification of procedure sru_try_format [2021-11-25 19:08:03,042 INFO L138 BoogieDeclarations]: Found implementation of procedure sru_try_format [2021-11-25 19:08:03,042 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-25 19:08:03,042 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-25 19:08:03,042 INFO L130 BoogieDeclarations]: Found specification of procedure vsp1_pm_suspend [2021-11-25 19:08:03,042 INFO L138 BoogieDeclarations]: Found implementation of procedure vsp1_pm_suspend [2021-11-25 19:08:03,043 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2021-11-25 19:08:03,043 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2021-11-25 19:08:03,043 INFO L130 BoogieDeclarations]: Found specification of procedure vsp1_clocks_enable [2021-11-25 19:08:03,043 INFO L138 BoogieDeclarations]: Found implementation of procedure vsp1_clocks_enable [2021-11-25 19:08:03,043 INFO L130 BoogieDeclarations]: Found specification of procedure vsp1_video_try_format [2021-11-25 19:08:03,044 INFO L138 BoogieDeclarations]: Found implementation of procedure vsp1_video_try_format [2021-11-25 19:08:03,044 INFO L130 BoogieDeclarations]: Found specification of procedure to_sru [2021-11-25 19:08:03,044 INFO L138 BoogieDeclarations]: Found implementation of procedure to_sru [2021-11-25 19:08:03,044 INFO L130 BoogieDeclarations]: Found specification of procedure uds_output_size [2021-11-25 19:08:03,044 INFO L138 BoogieDeclarations]: Found implementation of procedure uds_output_size [2021-11-25 19:08:03,044 INFO L130 BoogieDeclarations]: Found specification of procedure vb2_ops_wait_finish [2021-11-25 19:08:03,044 INFO L138 BoogieDeclarations]: Found implementation of procedure vb2_ops_wait_finish [2021-11-25 19:08:03,045 INFO L130 BoogieDeclarations]: Found specification of procedure lut_s_stream [2021-11-25 19:08:03,045 INFO L138 BoogieDeclarations]: Found implementation of procedure lut_s_stream [2021-11-25 19:08:03,045 INFO L130 BoogieDeclarations]: Found specification of procedure vsp1_video_cleanup [2021-11-25 19:08:03,045 INFO L138 BoogieDeclarations]: Found implementation of procedure vsp1_video_cleanup [2021-11-25 19:08:03,045 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-11-25 19:08:03,045 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-11-25 19:08:03,046 INFO L130 BoogieDeclarations]: Found specification of procedure vb2_ioctl_create_bufs [2021-11-25 19:08:03,046 INFO L138 BoogieDeclarations]: Found implementation of procedure vb2_ioctl_create_bufs [2021-11-25 19:08:03,046 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2021-11-25 19:08:03,046 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2021-11-25 19:08:03,046 INFO L130 BoogieDeclarations]: Found specification of procedure uds_passband_width [2021-11-25 19:08:03,046 INFO L138 BoogieDeclarations]: Found implementation of procedure uds_passband_width [2021-11-25 19:08:03,047 INFO L130 BoogieDeclarations]: Found specification of procedure vsp1_clocks_disable [2021-11-25 19:08:03,047 INFO L138 BoogieDeclarations]: Found implementation of procedure vsp1_clocks_disable [2021-11-25 19:08:03,047 INFO L130 BoogieDeclarations]: Found specification of procedure vsp1_lif_write [2021-11-25 19:08:03,047 INFO L138 BoogieDeclarations]: Found implementation of procedure vsp1_lif_write [2021-11-25 19:08:03,047 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2021-11-25 19:08:03,047 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2021-11-25 19:08:03,047 INFO L130 BoogieDeclarations]: Found specification of procedure vsp1_entity_get_pad_format [2021-11-25 19:08:03,048 INFO L138 BoogieDeclarations]: Found implementation of procedure vsp1_entity_get_pad_format [2021-11-25 19:08:03,048 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_subdev_init [2021-11-25 19:08:03,048 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_subdev_init [2021-11-25 19:08:03,048 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2021-11-25 19:08:03,048 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2021-11-25 19:08:03,048 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-25 19:08:03,049 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-25 19:08:03,049 INFO L130 BoogieDeclarations]: Found specification of procedure vsp1_sru_write [2021-11-25 19:08:03,049 INFO L138 BoogieDeclarations]: Found implementation of procedure vsp1_sru_write [2021-11-25 19:08:03,049 INFO L130 BoogieDeclarations]: Found specification of procedure hsit_set_format [2021-11-25 19:08:03,049 INFO L138 BoogieDeclarations]: Found implementation of procedure hsit_set_format [2021-11-25 19:08:03,049 INFO L130 BoogieDeclarations]: Found specification of procedure vsp1_rpf_write [2021-11-25 19:08:03,050 INFO L138 BoogieDeclarations]: Found implementation of procedure vsp1_rpf_write [2021-11-25 19:08:03,050 INFO L130 BoogieDeclarations]: Found specification of procedure __vsp1_video_try_format [2021-11-25 19:08:03,050 INFO L138 BoogieDeclarations]: Found implementation of procedure __vsp1_video_try_format [2021-11-25 19:08:03,050 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_post_probe [2021-11-25 19:08:03,050 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_post_probe [2021-11-25 19:08:03,051 INFO L130 BoogieDeclarations]: Found specification of procedure media_entity_create_link [2021-11-25 19:08:03,051 INFO L138 BoogieDeclarations]: Found implementation of procedure media_entity_create_link [2021-11-25 19:08:03,051 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_get_drvdata [2021-11-25 19:08:03,051 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_get_drvdata [2021-11-25 19:08:03,051 INFO L130 BoogieDeclarations]: Found specification of procedure vsp1_video_release [2021-11-25 19:08:03,051 INFO L138 BoogieDeclarations]: Found implementation of procedure vsp1_video_release [2021-11-25 19:08:03,052 INFO L130 BoogieDeclarations]: Found specification of procedure video_drvdata [2021-11-25 19:08:03,052 INFO L138 BoogieDeclarations]: Found implementation of procedure video_drvdata [2021-11-25 19:08:03,052 INFO L130 BoogieDeclarations]: Found specification of procedure ERR_PTR [2021-11-25 19:08:03,052 INFO L138 BoogieDeclarations]: Found implementation of procedure ERR_PTR [2021-11-25 19:08:03,052 INFO L130 BoogieDeclarations]: Found specification of procedure vsp1_remove [2021-11-25 19:08:03,052 INFO L138 BoogieDeclarations]: Found implementation of procedure vsp1_remove [2021-11-25 19:08:03,053 INFO L130 BoogieDeclarations]: Found specification of procedure vsp1_pm_resume [2021-11-25 19:08:03,053 INFO L138 BoogieDeclarations]: Found implementation of procedure vsp1_pm_resume [2021-11-25 19:08:03,053 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-25 19:08:03,053 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2021-11-25 19:08:03,053 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2021-11-25 19:08:03,054 INFO L130 BoogieDeclarations]: Found specification of procedure uds_output_limits [2021-11-25 19:08:03,054 INFO L138 BoogieDeclarations]: Found implementation of procedure uds_output_limits [2021-11-25 19:08:03,054 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-25 19:08:03,054 INFO L130 BoogieDeclarations]: Found specification of procedure vsp1_pipeline_run [2021-11-25 19:08:03,054 INFO L138 BoogieDeclarations]: Found implementation of procedure vsp1_pipeline_run [2021-11-25 19:08:03,054 INFO L130 BoogieDeclarations]: Found specification of procedure uds_compute_ratio [2021-11-25 19:08:03,055 INFO L138 BoogieDeclarations]: Found implementation of procedure uds_compute_ratio [2021-11-25 19:08:03,055 INFO L130 BoogieDeclarations]: Found specification of procedure vsp1_video_stop_streaming [2021-11-25 19:08:03,055 INFO L138 BoogieDeclarations]: Found implementation of procedure vsp1_video_stop_streaming [2021-11-25 19:08:03,055 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-25 19:08:03,055 INFO L130 BoogieDeclarations]: Found specification of procedure uds_set_format [2021-11-25 19:08:03,055 INFO L138 BoogieDeclarations]: Found implementation of procedure uds_set_format [2021-11-25 19:08:03,056 INFO L130 BoogieDeclarations]: Found specification of procedure vsp1_probe [2021-11-25 19:08:03,056 INFO L138 BoogieDeclarations]: Found implementation of procedure vsp1_probe [2021-11-25 19:08:03,056 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_pre_probe [2021-11-25 19:08:03,056 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_pre_probe [2021-11-25 19:08:03,056 INFO L130 BoogieDeclarations]: Found specification of procedure vsp1_hsit_create [2021-11-25 19:08:03,057 INFO L138 BoogieDeclarations]: Found implementation of procedure vsp1_hsit_create [2021-11-25 19:08:03,057 INFO L130 BoogieDeclarations]: Found specification of procedure __mutex_init [2021-11-25 19:08:03,057 INFO L138 BoogieDeclarations]: Found implementation of procedure __mutex_init [2021-11-25 19:08:03,057 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2021-11-25 19:08:03,057 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2021-11-25 19:08:03,057 INFO L130 BoogieDeclarations]: Found specification of procedure devm_clk_get [2021-11-25 19:08:03,058 INFO L138 BoogieDeclarations]: Found implementation of procedure devm_clk_get [2021-11-25 19:08:03,058 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2021-11-25 19:08:03,058 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2021-11-25 19:08:03,058 INFO L130 BoogieDeclarations]: Found specification of procedure clk_disable_unprepare [2021-11-25 19:08:03,058 INFO L138 BoogieDeclarations]: Found implementation of procedure clk_disable_unprepare [2021-11-25 19:08:03,058 INFO L130 BoogieDeclarations]: Found specification of procedure vb2_ioctl_querybuf [2021-11-25 19:08:03,059 INFO L138 BoogieDeclarations]: Found implementation of procedure vb2_ioctl_querybuf [2021-11-25 19:08:03,059 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2021-11-25 19:08:03,059 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2021-11-25 19:08:03,059 INFO L130 BoogieDeclarations]: Found specification of procedure to_vsp1_entity [2021-11-25 19:08:03,059 INFO L138 BoogieDeclarations]: Found implementation of procedure to_vsp1_entity [2021-11-25 19:08:03,059 INFO L130 BoogieDeclarations]: Found specification of procedure to_lif [2021-11-25 19:08:03,060 INFO L138 BoogieDeclarations]: Found implementation of procedure to_lif [2021-11-25 19:08:03,060 INFO L130 BoogieDeclarations]: Found specification of procedure vsp1_rwpf_set_format [2021-11-25 19:08:03,060 INFO L138 BoogieDeclarations]: Found implementation of procedure vsp1_rwpf_set_format [2021-11-25 19:08:03,060 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_subdev_get_try_format___3 [2021-11-25 19:08:03,060 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_subdev_get_try_format___3 [2021-11-25 19:08:03,061 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_subdev_link_validate [2021-11-25 19:08:03,061 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_subdev_link_validate [2021-11-25 19:08:03,061 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_subdev_get_try_format___2 [2021-11-25 19:08:03,061 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_subdev_get_try_format___2 [2021-11-25 19:08:03,061 INFO L130 BoogieDeclarations]: Found specification of procedure vb2_ops_wait_prepare [2021-11-25 19:08:03,061 INFO L138 BoogieDeclarations]: Found implementation of procedure vb2_ops_wait_prepare [2021-11-25 19:08:03,062 INFO L130 BoogieDeclarations]: Found specification of procedure video_device_release_empty [2021-11-25 19:08:03,062 INFO L130 BoogieDeclarations]: Found specification of procedure vsp1_rwpf_enum_mbus_code [2021-11-25 19:08:03,062 INFO L138 BoogieDeclarations]: Found implementation of procedure vsp1_rwpf_enum_mbus_code [2021-11-25 19:08:03,062 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2021-11-25 19:08:03,062 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2021-11-25 19:08:03,063 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_subdev_get_try_format___5 [2021-11-25 19:08:03,063 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_subdev_get_try_format___5 [2021-11-25 19:08:03,063 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_subdev_get_try_format___4 [2021-11-25 19:08:03,063 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_subdev_get_try_format___4 [2021-11-25 19:08:03,063 INFO L130 BoogieDeclarations]: Found specification of procedure lif_set_format [2021-11-25 19:08:03,063 INFO L138 BoogieDeclarations]: Found implementation of procedure lif_set_format [2021-11-25 19:08:03,064 INFO L130 BoogieDeclarations]: Found specification of procedure lut_enum_mbus_code [2021-11-25 19:08:03,064 INFO L138 BoogieDeclarations]: Found implementation of procedure lut_enum_mbus_code [2021-11-25 19:08:03,064 INFO L130 BoogieDeclarations]: Found specification of procedure lif_get_format [2021-11-25 19:08:03,064 INFO L138 BoogieDeclarations]: Found implementation of procedure lif_get_format [2021-11-25 19:08:03,064 INFO L130 BoogieDeclarations]: Found specification of procedure vsp1_rwpf_get_crop [2021-11-25 19:08:03,064 INFO L138 BoogieDeclarations]: Found implementation of procedure vsp1_rwpf_get_crop [2021-11-25 19:08:03,065 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-25 19:08:03,065 INFO L130 BoogieDeclarations]: Found specification of procedure clk_prepare_enable [2021-11-25 19:08:03,065 INFO L138 BoogieDeclarations]: Found implementation of procedure clk_prepare_enable [2021-11-25 19:08:03,065 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-11-25 19:08:03,065 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-11-25 19:08:03,065 INFO L130 BoogieDeclarations]: Found specification of procedure vsp1_video_querycap [2021-11-25 19:08:03,066 INFO L138 BoogieDeclarations]: Found implementation of procedure vsp1_video_querycap [2021-11-25 19:08:03,066 INFO L130 BoogieDeclarations]: Found specification of procedure media_entity_init [2021-11-25 19:08:03,066 INFO L138 BoogieDeclarations]: Found implementation of procedure media_entity_init [2021-11-25 19:08:03,066 INFO L130 BoogieDeclarations]: Found specification of procedure vsp1_video_buffer_queue [2021-11-25 19:08:03,066 INFO L138 BoogieDeclarations]: Found implementation of procedure vsp1_video_buffer_queue [2021-11-25 19:08:03,067 INFO L130 BoogieDeclarations]: Found specification of procedure vsp1_video_init [2021-11-25 19:08:03,067 INFO L138 BoogieDeclarations]: Found implementation of procedure vsp1_video_init [2021-11-25 19:08:03,067 INFO L130 BoogieDeclarations]: Found specification of procedure rpf_s_stream [2021-11-25 19:08:03,067 INFO L138 BoogieDeclarations]: Found implementation of procedure rpf_s_stream [2021-11-25 19:08:03,067 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_vsp1_platform_driver_exit_28_2 [2021-11-25 19:08:03,067 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_vsp1_platform_driver_exit_28_2 [2021-11-25 19:08:03,068 INFO L130 BoogieDeclarations]: Found specification of procedure media_entity_pipeline_stop [2021-11-25 19:08:03,068 INFO L138 BoogieDeclarations]: Found implementation of procedure media_entity_pipeline_stop [2021-11-25 19:08:03,068 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_set_subdevdata [2021-11-25 19:08:03,068 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_set_subdevdata [2021-11-25 19:08:03,068 INFO L130 BoogieDeclarations]: Found specification of procedure lut_set_format [2021-11-25 19:08:03,068 INFO L138 BoogieDeclarations]: Found implementation of procedure lut_set_format [2021-11-25 19:08:03,069 INFO L130 BoogieDeclarations]: Found specification of procedure hsit_enum_frame_size [2021-11-25 19:08:03,069 INFO L138 BoogieDeclarations]: Found implementation of procedure hsit_enum_frame_size [2021-11-25 19:08:03,069 INFO L130 BoogieDeclarations]: Found specification of procedure lut_enum_frame_size [2021-11-25 19:08:03,069 INFO L138 BoogieDeclarations]: Found implementation of procedure lut_enum_frame_size [2021-11-25 19:08:03,069 INFO L130 BoogieDeclarations]: Found specification of procedure vb2_get_drv_priv [2021-11-25 19:08:03,069 INFO L138 BoogieDeclarations]: Found implementation of procedure vb2_get_drv_priv [2021-11-25 19:08:03,070 INFO L130 BoogieDeclarations]: Found specification of procedure hsit_s_stream [2021-11-25 19:08:03,070 INFO L138 BoogieDeclarations]: Found implementation of procedure hsit_s_stream [2021-11-25 19:08:03,070 INFO L130 BoogieDeclarations]: Found specification of procedure wpf_vdev_queue [2021-11-25 19:08:03,070 INFO L138 BoogieDeclarations]: Found implementation of procedure wpf_vdev_queue [2021-11-25 19:08:03,070 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2021-11-25 19:08:03,071 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2021-11-25 19:08:03,071 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2021-11-25 19:08:03,071 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2021-11-25 19:08:03,071 INFO L130 BoogieDeclarations]: Found specification of procedure uds_get_format [2021-11-25 19:08:03,071 INFO L138 BoogieDeclarations]: Found implementation of procedure uds_get_format [2021-11-25 19:08:03,071 INFO L130 BoogieDeclarations]: Found specification of procedure msecs_to_jiffies [2021-11-25 19:08:03,072 INFO L138 BoogieDeclarations]: Found implementation of procedure msecs_to_jiffies [2021-11-25 19:08:03,072 INFO L130 BoogieDeclarations]: Found specification of procedure media_entity_cleanup [2021-11-25 19:08:03,072 INFO L138 BoogieDeclarations]: Found implementation of procedure media_entity_cleanup [2021-11-25 19:08:03,072 INFO L130 BoogieDeclarations]: Found specification of procedure vb2_ioctl_qbuf [2021-11-25 19:08:03,072 INFO L138 BoogieDeclarations]: Found implementation of procedure vb2_ioctl_qbuf [2021-11-25 19:08:03,072 INFO L130 BoogieDeclarations]: Found specification of procedure lif_enum_mbus_code [2021-11-25 19:08:03,073 INFO L138 BoogieDeclarations]: Found implementation of procedure lif_enum_mbus_code [2021-11-25 19:08:03,073 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-25 19:08:03,073 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2021-11-25 19:08:03,073 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2021-11-25 19:08:03,073 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2021-11-25 19:08:03,074 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2021-11-25 19:08:04,729 INFO L236 CfgBuilder]: Building ICFG [2021-11-25 19:08:04,739 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-25 19:08:11,285 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-11-25 19:09:42,119 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-25 19:09:42,344 INFO L277 CfgBuilder]: Performing block encoding [2021-11-25 19:09:45,184 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-25 19:09:45,184 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-25 19:09:45,192 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 07:09:45 BoogieIcfgContainer [2021-11-25 19:09:45,192 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-25 19:09:45,194 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-25 19:09:45,194 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-25 19:09:45,198 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-25 19:09:45,199 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 07:07:53" (1/3) ... [2021-11-25 19:09:45,199 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52d7e689 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 07:09:45, skipping insertion in model container [2021-11-25 19:09:45,200 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:08:01" (2/3) ... [2021-11-25 19:09:45,200 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52d7e689 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 07:09:45, skipping insertion in model container [2021-11-25 19:09:45,200 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 07:09:45" (3/3) ... [2021-11-25 19:09:45,201 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-platform-vsp1-vsp1.cil.i [2021-11-25 19:09:45,206 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-25 19:09:45,207 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2021-11-25 19:09:45,274 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-25 19:09:45,282 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=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, mLoopAccelerationTechnique=FAST_UPR [2021-11-25 19:09:45,282 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-11-25 19:09:45,373 INFO L276 IsEmpty]: Start isEmpty. Operand has 2840 states, 1759 states have (on average 1.3342808413871519) internal successors, (2347), 1782 states have internal predecessors, (2347), 900 states have call successors, (900), 179 states have call predecessors, (900), 178 states have return successors, (887), 883 states have call predecessors, (887), 887 states have call successors, (887) [2021-11-25 19:09:45,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1125 [2021-11-25 19:09:45,460 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:09:45,462 INFO L514 BasicCegarLoop]: trace histogram [111, 110, 110, 110, 110, 110, 110, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 19:09:45,463 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-25 19:09:45,468 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:09:45,469 INFO L85 PathProgramCache]: Analyzing trace with hash 416839345, now seen corresponding path program 1 times [2021-11-25 19:09:45,478 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:09:45,478 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1090413781] [2021-11-25 19:09:45,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:09:45,479 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:09:46,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:09:47,614 INFO L134 CoverageAnalysis]: Checked inductivity of 48183 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 48183 trivial. 0 not checked. [2021-11-25 19:09:47,615 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:09:47,615 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1090413781] [2021-11-25 19:09:47,616 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1090413781] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:09:47,616 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:09:47,617 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 19:09:47,618 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1499212975] [2021-11-25 19:09:47,619 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:09:47,626 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 19:09:47,626 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:09:47,659 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 19:09:47,660 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 19:09:47,671 INFO L87 Difference]: Start difference. First operand has 2840 states, 1759 states have (on average 1.3342808413871519) internal successors, (2347), 1782 states have internal predecessors, (2347), 900 states have call successors, (900), 179 states have call predecessors, (900), 178 states have return successors, (887), 883 states have call predecessors, (887), 887 states have call successors, (887) Second operand has 3 states, 3 states have (on average 42.0) internal successors, (126), 3 states have internal predecessors, (126), 3 states have call successors, (117), 2 states have call predecessors, (117), 1 states have return successors, (115), 3 states have call predecessors, (115), 3 states have call successors, (115) [2021-11-25 19:09:52,985 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2021-11-25 19:09:54,300 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:09:56,364 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:09:58,431 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:10:00,521 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:10:04,288 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:10:06,457 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.27s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:10:08,498 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:10:10,633 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:10:12,987 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2021-11-25 19:10:17,320 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.67s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:10:20,333 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-25 19:10:24,507 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.27s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:10:26,443 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:10:26,444 INFO L93 Difference]: Finished difference Result 7945 states and 11689 transitions. [2021-11-25 19:10:26,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 19:10:26,447 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 42.0) internal successors, (126), 3 states have internal predecessors, (126), 3 states have call successors, (117), 2 states have call predecessors, (117), 1 states have return successors, (115), 3 states have call predecessors, (115), 3 states have call successors, (115) Word has length 1124 [2021-11-25 19:10:26,455 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:10:26,537 INFO L225 Difference]: With dead ends: 7945 [2021-11-25 19:10:26,538 INFO L226 Difference]: Without dead ends: 5308 [2021-11-25 19:10:26,571 INFO L932 BasicCegarLoop]: 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 [2021-11-25 19:10:26,580 INFO L933 BasicCegarLoop]: 4273 mSDtfsCounter, 3630 mSDsluCounter, 4025 mSDsCounter, 0 mSdLazyCounter, 1180 mSolverCounterSat, 22 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 36.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3641 SdHoareTripleChecker+Valid, 7764 SdHoareTripleChecker+Invalid, 1210 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 1180 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 38.2s IncrementalHoareTripleChecker+Time [2021-11-25 19:10:26,581 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3641 Valid, 7764 Invalid, 1210 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [22 Valid, 1180 Invalid, 8 Unknown, 0 Unchecked, 38.2s Time] [2021-11-25 19:10:26,606 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5308 states. [2021-11-25 19:10:27,086 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5308 to 5301. [2021-11-25 19:10:27,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5301 states, 3334 states have (on average 1.337132573485303) internal successors, (4458), 3378 states have internal predecessors, (4458), 1614 states have call successors, (1614), 351 states have call predecessors, (1614), 350 states have return successors, (1617), 1601 states have call predecessors, (1617), 1610 states have call successors, (1617) [2021-11-25 19:10:27,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5301 states to 5301 states and 7689 transitions. [2021-11-25 19:10:27,171 INFO L78 Accepts]: Start accepts. Automaton has 5301 states and 7689 transitions. Word has length 1124 [2021-11-25 19:10:27,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:10:27,176 INFO L470 AbstractCegarLoop]: Abstraction has 5301 states and 7689 transitions. [2021-11-25 19:10:27,177 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 42.0) internal successors, (126), 3 states have internal predecessors, (126), 3 states have call successors, (117), 2 states have call predecessors, (117), 1 states have return successors, (115), 3 states have call predecessors, (115), 3 states have call successors, (115) [2021-11-25 19:10:27,177 INFO L276 IsEmpty]: Start isEmpty. Operand 5301 states and 7689 transitions. [2021-11-25 19:10:27,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1142 [2021-11-25 19:10:27,261 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:10:27,262 INFO L514 BasicCegarLoop]: trace histogram [111, 110, 110, 110, 110, 110, 110, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 19:10:27,263 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-25 19:10:27,263 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-25 19:10:27,268 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:10:27,269 INFO L85 PathProgramCache]: Analyzing trace with hash -1082322997, now seen corresponding path program 1 times [2021-11-25 19:10:27,269 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:10:27,269 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1289849292] [2021-11-25 19:10:27,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:10:27,270 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:10:27,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:10:28,548 INFO L134 CoverageAnalysis]: Checked inductivity of 48180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 48180 trivial. 0 not checked. [2021-11-25 19:10:28,549 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:10:28,549 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1289849292] [2021-11-25 19:10:28,549 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1289849292] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:10:28,550 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:10:28,550 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 19:10:28,551 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [133815504] [2021-11-25 19:10:28,551 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:10:28,556 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 19:10:28,556 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:10:28,557 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 19:10:28,557 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 19:10:28,558 INFO L87 Difference]: Start difference. First operand 5301 states and 7689 transitions. Second operand has 3 states, 3 states have (on average 47.0) internal successors, (141), 3 states have internal predecessors, (141), 3 states have call successors, (120), 2 states have call predecessors, (120), 1 states have return successors, (116), 3 states have call predecessors, (116), 3 states have call successors, (116) [2021-11-25 19:10:31,048 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.47s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:10:34,432 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.28s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:10:36,465 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:10:38,512 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:10:40,564 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:10:46,261 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.43s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:10:48,297 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:10:50,442 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:10:57,569 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.54s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:11:01,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:11:01,784 INFO L93 Difference]: Finished difference Result 12861 states and 18631 transitions. [2021-11-25 19:11:01,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 19:11:01,785 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 47.0) internal successors, (141), 3 states have internal predecessors, (141), 3 states have call successors, (120), 2 states have call predecessors, (120), 1 states have return successors, (116), 3 states have call predecessors, (116), 3 states have call successors, (116) Word has length 1141 [2021-11-25 19:11:01,788 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:11:01,872 INFO L225 Difference]: With dead ends: 12861 [2021-11-25 19:11:01,873 INFO L226 Difference]: Without dead ends: 7781 [2021-11-25 19:11:01,906 INFO L932 BasicCegarLoop]: 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 [2021-11-25 19:11:01,908 INFO L933 BasicCegarLoop]: 4273 mSDtfsCounter, 3629 mSDsluCounter, 4037 mSDsCounter, 0 mSdLazyCounter, 1158 mSolverCounterSat, 12 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 31.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3636 SdHoareTripleChecker+Valid, 7770 SdHoareTripleChecker+Invalid, 1175 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 1158 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 32.7s IncrementalHoareTripleChecker+Time [2021-11-25 19:11:01,908 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3636 Valid, 7770 Invalid, 1175 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 1158 Invalid, 5 Unknown, 0 Unchecked, 32.7s Time] [2021-11-25 19:11:01,921 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7781 states. [2021-11-25 19:11:02,356 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7781 to 7756. [2021-11-25 19:11:02,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7756 states, 4890 states have (on average 1.3376278118609406) internal successors, (6541), 4959 states have internal predecessors, (6541), 2336 states have call successors, (2336), 528 states have call predecessors, (2336), 527 states have return successors, (2346), 2313 states have call predecessors, (2346), 2332 states have call successors, (2346) [2021-11-25 19:11:02,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7756 states to 7756 states and 11223 transitions. [2021-11-25 19:11:02,444 INFO L78 Accepts]: Start accepts. Automaton has 7756 states and 11223 transitions. Word has length 1141 [2021-11-25 19:11:02,448 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:11:02,448 INFO L470 AbstractCegarLoop]: Abstraction has 7756 states and 11223 transitions. [2021-11-25 19:11:02,450 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.0) internal successors, (141), 3 states have internal predecessors, (141), 3 states have call successors, (120), 2 states have call predecessors, (120), 1 states have return successors, (116), 3 states have call predecessors, (116), 3 states have call successors, (116) [2021-11-25 19:11:02,450 INFO L276 IsEmpty]: Start isEmpty. Operand 7756 states and 11223 transitions. [2021-11-25 19:11:02,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1142 [2021-11-25 19:11:02,476 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:11:02,477 INFO L514 BasicCegarLoop]: trace histogram [111, 110, 110, 110, 110, 110, 110, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 19:11:02,477 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-25 19:11:02,477 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-25 19:11:02,478 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:11:02,478 INFO L85 PathProgramCache]: Analyzing trace with hash 387300646, now seen corresponding path program 1 times [2021-11-25 19:11:02,479 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:11:02,479 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1480186717] [2021-11-25 19:11:02,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:11:02,480 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:11:03,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:11:03,786 INFO L134 CoverageAnalysis]: Checked inductivity of 48180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 48180 trivial. 0 not checked. [2021-11-25 19:11:03,787 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:11:03,787 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1480186717] [2021-11-25 19:11:03,787 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1480186717] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:11:03,788 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:11:03,788 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 19:11:03,789 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1201174963] [2021-11-25 19:11:03,789 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:11:03,791 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 19:11:03,791 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:11:03,792 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 19:11:03,792 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 19:11:03,794 INFO L87 Difference]: Start difference. First operand 7756 states and 11223 transitions. Second operand has 3 states, 3 states have (on average 47.0) internal successors, (141), 3 states have internal predecessors, (141), 3 states have call successors, (120), 2 states have call predecessors, (120), 1 states have return successors, (116), 3 states have call predecessors, (116), 3 states have call successors, (116) [2021-11-25 19:11:05,879 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:11:08,461 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:11:11,357 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.62s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:11:13,402 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:11:15,448 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:11:17,497 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:11:18,748 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.19s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:11:23,614 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.43s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:11:25,576 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.96s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:11:27,786 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:11:29,877 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:11:32,057 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-25 19:11:37,672 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:11:40,600 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:11:40,600 INFO L93 Difference]: Finished difference Result 22337 states and 32291 transitions. [2021-11-25 19:11:40,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 19:11:40,601 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 47.0) internal successors, (141), 3 states have internal predecessors, (141), 3 states have call successors, (120), 2 states have call predecessors, (120), 1 states have return successors, (116), 3 states have call predecessors, (116), 3 states have call successors, (116) Word has length 1141 [2021-11-25 19:11:40,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:11:40,762 INFO L225 Difference]: With dead ends: 22337 [2021-11-25 19:11:40,763 INFO L226 Difference]: Without dead ends: 14802 [2021-11-25 19:11:40,819 INFO L932 BasicCegarLoop]: 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 [2021-11-25 19:11:40,823 INFO L933 BasicCegarLoop]: 4758 mSDtfsCounter, 3541 mSDsluCounter, 3998 mSDsCounter, 0 mSdLazyCounter, 1271 mSolverCounterSat, 29 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 34.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3547 SdHoareTripleChecker+Valid, 8228 SdHoareTripleChecker+Invalid, 1306 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 1271 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 36.2s IncrementalHoareTripleChecker+Time [2021-11-25 19:11:40,826 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3547 Valid, 8228 Invalid, 1306 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 1271 Invalid, 6 Unknown, 0 Unchecked, 36.2s Time] [2021-11-25 19:11:40,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14802 states. [2021-11-25 19:11:41,769 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14802 to 14773. [2021-11-25 19:11:41,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14773 states, 9332 states have (on average 1.334226318045435) internal successors, (12451), 9465 states have internal predecessors, (12451), 4400 states have call successors, (4400), 1039 states have call predecessors, (4400), 1038 states have return successors, (4430), 4352 states have call predecessors, (4430), 4396 states have call successors, (4430) [2021-11-25 19:11:41,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14773 states to 14773 states and 21281 transitions. [2021-11-25 19:11:41,868 INFO L78 Accepts]: Start accepts. Automaton has 14773 states and 21281 transitions. Word has length 1141 [2021-11-25 19:11:41,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:11:41,872 INFO L470 AbstractCegarLoop]: Abstraction has 14773 states and 21281 transitions. [2021-11-25 19:11:41,872 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.0) internal successors, (141), 3 states have internal predecessors, (141), 3 states have call successors, (120), 2 states have call predecessors, (120), 1 states have return successors, (116), 3 states have call predecessors, (116), 3 states have call successors, (116) [2021-11-25 19:11:41,873 INFO L276 IsEmpty]: Start isEmpty. Operand 14773 states and 21281 transitions. [2021-11-25 19:11:41,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1146 [2021-11-25 19:11:41,895 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:11:41,896 INFO L514 BasicCegarLoop]: trace histogram [111, 110, 110, 110, 110, 110, 110, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 19:11:41,897 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-25 19:11:41,897 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-25 19:11:41,897 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:11:41,898 INFO L85 PathProgramCache]: Analyzing trace with hash -1529755748, now seen corresponding path program 1 times [2021-11-25 19:11:41,898 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:11:41,898 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1863392821] [2021-11-25 19:11:41,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:11:41,899 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:11:42,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:11:42,837 INFO L134 CoverageAnalysis]: Checked inductivity of 48180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 48180 trivial. 0 not checked. [2021-11-25 19:11:42,837 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:11:42,837 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1863392821] [2021-11-25 19:11:42,838 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1863392821] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:11:42,838 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:11:42,838 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 19:11:42,839 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1117767680] [2021-11-25 19:11:42,839 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:11:42,840 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 19:11:42,841 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:11:42,841 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 19:11:42,841 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 19:11:42,842 INFO L87 Difference]: Start difference. First operand 14773 states and 21281 transitions. Second operand has 3 states, 3 states have (on average 48.0) internal successors, (144), 3 states have internal predecessors, (144), 3 states have call successors, (120), 2 states have call predecessors, (120), 1 states have return successors, (117), 3 states have call predecessors, (117), 3 states have call successors, (117) [2021-11-25 19:11:48,851 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.81s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:11:50,893 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:11:52,933 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:11:56,224 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-25 19:11:58,207 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:12:01,869 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:12:04,042 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:12:05,563 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:12:05,563 INFO L93 Difference]: Finished difference Result 29343 states and 42231 transitions. [2021-11-25 19:12:05,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 19:12:05,564 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 48.0) internal successors, (144), 3 states have internal predecessors, (144), 3 states have call successors, (120), 2 states have call predecessors, (120), 1 states have return successors, (117), 3 states have call predecessors, (117), 3 states have call successors, (117) Word has length 1145 [2021-11-25 19:12:05,565 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:12:05,664 INFO L225 Difference]: With dead ends: 29343 [2021-11-25 19:12:05,664 INFO L226 Difference]: Without dead ends: 14791 [2021-11-25 19:12:05,735 INFO L932 BasicCegarLoop]: 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 [2021-11-25 19:12:05,736 INFO L933 BasicCegarLoop]: 3524 mSDtfsCounter, 3709 mSDsluCounter, 396 mSDsCounter, 0 mSdLazyCounter, 582 mSolverCounterSat, 2 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 21.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3718 SdHoareTripleChecker+Valid, 3903 SdHoareTripleChecker+Invalid, 589 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 582 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 22.2s IncrementalHoareTripleChecker+Time [2021-11-25 19:12:05,737 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3718 Valid, 3903 Invalid, 589 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 582 Invalid, 5 Unknown, 0 Unchecked, 22.2s Time] [2021-11-25 19:12:05,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14791 states. [2021-11-25 19:12:06,982 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14791 to 14773. [2021-11-25 19:12:07,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14773 states, 9340 states have (on average 1.3325481798715204) internal successors, (12446), 9478 states have internal predecessors, (12446), 4372 states have call successors, (4372), 1054 states have call predecessors, (4372), 1058 states have return successors, (4409), 4324 states have call predecessors, (4409), 4368 states have call successors, (4409) [2021-11-25 19:12:07,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14773 states to 14773 states and 21227 transitions. [2021-11-25 19:12:07,085 INFO L78 Accepts]: Start accepts. Automaton has 14773 states and 21227 transitions. Word has length 1145 [2021-11-25 19:12:07,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:12:07,087 INFO L470 AbstractCegarLoop]: Abstraction has 14773 states and 21227 transitions. [2021-11-25 19:12:07,087 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 48.0) internal successors, (144), 3 states have internal predecessors, (144), 3 states have call successors, (120), 2 states have call predecessors, (120), 1 states have return successors, (117), 3 states have call predecessors, (117), 3 states have call successors, (117) [2021-11-25 19:12:07,088 INFO L276 IsEmpty]: Start isEmpty. Operand 14773 states and 21227 transitions. [2021-11-25 19:12:07,111 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1147 [2021-11-25 19:12:07,111 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:12:07,112 INFO L514 BasicCegarLoop]: trace histogram [111, 110, 110, 110, 110, 110, 110, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 19:12:07,113 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-25 19:12:07,113 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-25 19:12:07,114 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:12:07,114 INFO L85 PathProgramCache]: Analyzing trace with hash 656079, now seen corresponding path program 1 times [2021-11-25 19:12:07,114 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:12:07,115 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [924099553] [2021-11-25 19:12:07,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:12:07,115 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:12:07,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:12:08,056 INFO L134 CoverageAnalysis]: Checked inductivity of 48180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 48180 trivial. 0 not checked. [2021-11-25 19:12:08,057 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:12:08,058 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [924099553] [2021-11-25 19:12:08,059 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [924099553] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:12:08,059 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:12:08,059 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 19:12:08,060 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1130424309] [2021-11-25 19:12:08,060 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:12:08,061 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 19:12:08,062 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:12:08,062 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 19:12:08,062 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 19:12:08,063 INFO L87 Difference]: Start difference. First operand 14773 states and 21227 transitions. Second operand has 3 states, 3 states have (on average 48.333333333333336) internal successors, (145), 3 states have internal predecessors, (145), 3 states have call successors, (120), 2 states have call predecessors, (120), 1 states have return successors, (117), 3 states have call predecessors, (117), 3 states have call successors, (117) [2021-11-25 19:12:14,434 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.88s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:12:16,496 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:12:18,542 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:12:21,640 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:12:23,599 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:12:24,693 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:12:26,458 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.59s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:12:28,505 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:12:30,772 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2021-11-25 19:12:32,144 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:12:32,145 INFO L93 Difference]: Finished difference Result 28841 states and 41398 transitions. [2021-11-25 19:12:32,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 19:12:32,145 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 48.333333333333336) internal successors, (145), 3 states have internal predecessors, (145), 3 states have call successors, (120), 2 states have call predecessors, (120), 1 states have return successors, (117), 3 states have call predecessors, (117), 3 states have call successors, (117) Word has length 1146 [2021-11-25 19:12:32,148 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:12:32,236 INFO L225 Difference]: With dead ends: 28841 [2021-11-25 19:12:32,237 INFO L226 Difference]: Without dead ends: 14307 [2021-11-25 19:12:32,295 INFO L932 BasicCegarLoop]: 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 [2021-11-25 19:12:32,296 INFO L933 BasicCegarLoop]: 3411 mSDtfsCounter, 3581 mSDsluCounter, 394 mSDsCounter, 0 mSdLazyCounter, 567 mSolverCounterSat, 2 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 22.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3589 SdHoareTripleChecker+Valid, 3791 SdHoareTripleChecker+Invalid, 574 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 567 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 23.6s IncrementalHoareTripleChecker+Time [2021-11-25 19:12:32,297 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3589 Valid, 3791 Invalid, 574 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 567 Invalid, 5 Unknown, 0 Unchecked, 23.6s Time] [2021-11-25 19:12:32,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14307 states. [2021-11-25 19:12:33,010 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14307 to 14307. [2021-11-25 19:12:33,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14307 states, 9073 states have (on average 1.331973988757853) internal successors, (12085), 9194 states have internal predecessors, (12085), 4190 states have call successors, (4190), 1036 states have call predecessors, (4190), 1041 states have return successors, (4228), 4142 states have call predecessors, (4228), 4186 states have call successors, (4228) [2021-11-25 19:12:33,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14307 states to 14307 states and 20503 transitions. [2021-11-25 19:12:33,105 INFO L78 Accepts]: Start accepts. Automaton has 14307 states and 20503 transitions. Word has length 1146 [2021-11-25 19:12:33,107 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:12:33,107 INFO L470 AbstractCegarLoop]: Abstraction has 14307 states and 20503 transitions. [2021-11-25 19:12:33,107 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 48.333333333333336) internal successors, (145), 3 states have internal predecessors, (145), 3 states have call successors, (120), 2 states have call predecessors, (120), 1 states have return successors, (117), 3 states have call predecessors, (117), 3 states have call successors, (117) [2021-11-25 19:12:33,108 INFO L276 IsEmpty]: Start isEmpty. Operand 14307 states and 20503 transitions. [2021-11-25 19:12:33,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1158 [2021-11-25 19:12:33,137 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:12:33,138 INFO L514 BasicCegarLoop]: trace histogram [111, 110, 110, 110, 110, 110, 110, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 19:12:33,138 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-25 19:12:33,139 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-25 19:12:33,140 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:12:33,140 INFO L85 PathProgramCache]: Analyzing trace with hash 2133925853, now seen corresponding path program 1 times [2021-11-25 19:12:33,141 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:12:33,141 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [200837471] [2021-11-25 19:12:33,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:12:33,141 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:12:33,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:12:34,122 INFO L134 CoverageAnalysis]: Checked inductivity of 48180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 48180 trivial. 0 not checked. [2021-11-25 19:12:34,123 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:12:34,123 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [200837471] [2021-11-25 19:12:34,123 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [200837471] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:12:34,123 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:12:34,124 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 19:12:34,124 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1969202253] [2021-11-25 19:12:34,124 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:12:34,126 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 19:12:34,126 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:12:34,127 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 19:12:34,127 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 19:12:34,127 INFO L87 Difference]: Start difference. First operand 14307 states and 20503 transitions. Second operand has 3 states, 3 states have (on average 52.666666666666664) internal successors, (158), 3 states have internal predecessors, (158), 3 states have call successors, (119), 2 states have call predecessors, (119), 1 states have return successors, (116), 3 states have call predecessors, (116), 3 states have call successors, (116) [2021-11-25 19:12:36,251 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.30s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:12:40,884 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-25 19:12:43,120 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.24s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:12:45,171 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:12:47,217 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:12:54,189 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:12:56,289 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:13:04,098 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.19s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:13:05,587 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.49s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:13:09,925 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2021-11-25 19:13:12,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:13:12,121 INFO L93 Difference]: Finished difference Result 36849 states and 52849 transitions. [2021-11-25 19:13:12,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 19:13:12,122 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 52.666666666666664) internal successors, (158), 3 states have internal predecessors, (158), 3 states have call successors, (119), 2 states have call predecessors, (119), 1 states have return successors, (116), 3 states have call predecessors, (116), 3 states have call successors, (116) Word has length 1157 [2021-11-25 19:13:12,124 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:13:12,232 INFO L225 Difference]: With dead ends: 36849 [2021-11-25 19:13:12,232 INFO L226 Difference]: Without dead ends: 22781 [2021-11-25 19:13:12,280 INFO L932 BasicCegarLoop]: 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 [2021-11-25 19:13:12,281 INFO L933 BasicCegarLoop]: 4307 mSDtfsCounter, 3460 mSDsluCounter, 3900 mSDsCounter, 0 mSdLazyCounter, 1134 mSolverCounterSat, 7 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 35.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3469 SdHoareTripleChecker+Valid, 7675 SdHoareTripleChecker+Invalid, 1148 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1134 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 36.7s IncrementalHoareTripleChecker+Time [2021-11-25 19:13:12,281 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3469 Valid, 7675 Invalid, 1148 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 1134 Invalid, 7 Unknown, 0 Unchecked, 36.7s Time] [2021-11-25 19:13:12,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22781 states. [2021-11-25 19:13:13,361 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22781 to 22742. [2021-11-25 19:13:13,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22742 states, 14454 states have (on average 1.3347170333471703) internal successors, (19292), 14660 states have internal predecessors, (19292), 6627 states have call successors, (6627), 1653 states have call predecessors, (6627), 1658 states have return successors, (6701), 6533 states have call predecessors, (6701), 6623 states have call successors, (6701) [2021-11-25 19:13:13,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22742 states to 22742 states and 32620 transitions. [2021-11-25 19:13:13,510 INFO L78 Accepts]: Start accepts. Automaton has 22742 states and 32620 transitions. Word has length 1157 [2021-11-25 19:13:13,513 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:13:13,513 INFO L470 AbstractCegarLoop]: Abstraction has 22742 states and 32620 transitions. [2021-11-25 19:13:13,514 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 52.666666666666664) internal successors, (158), 3 states have internal predecessors, (158), 3 states have call successors, (119), 2 states have call predecessors, (119), 1 states have return successors, (116), 3 states have call predecessors, (116), 3 states have call successors, (116) [2021-11-25 19:13:13,514 INFO L276 IsEmpty]: Start isEmpty. Operand 22742 states and 32620 transitions. [2021-11-25 19:13:13,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1161 [2021-11-25 19:13:13,558 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:13:13,560 INFO L514 BasicCegarLoop]: trace histogram [112, 110, 110, 110, 110, 110, 110, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 19:13:13,560 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-25 19:13:13,560 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-25 19:13:13,561 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:13:13,561 INFO L85 PathProgramCache]: Analyzing trace with hash 2042920991, now seen corresponding path program 1 times [2021-11-25 19:13:13,562 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:13:13,562 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1922566613] [2021-11-25 19:13:13,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:13:13,562 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:13:13,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:13:15,021 INFO L134 CoverageAnalysis]: Checked inductivity of 48408 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 48402 trivial. 0 not checked. [2021-11-25 19:13:15,022 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:13:15,022 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1922566613] [2021-11-25 19:13:15,022 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1922566613] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:13:15,023 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:13:15,023 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 19:13:15,024 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1762859133] [2021-11-25 19:13:15,024 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:13:15,025 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 19:13:15,026 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:13:15,026 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 19:13:15,026 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 19:13:15,027 INFO L87 Difference]: Start difference. First operand 22742 states and 32620 transitions. Second operand has 3 states, 3 states have (on average 51.666666666666664) internal successors, (155), 3 states have internal predecessors, (155), 3 states have call successors, (122), 2 states have call predecessors, (122), 1 states have return successors, (118), 3 states have call predecessors, (118), 3 states have call successors, (118) [2021-11-25 19:13:16,950 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:13:20,810 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2021-11-25 19:13:22,602 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.51s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:13:24,643 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:13:26,694 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:13:28,764 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:13:33,994 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.45s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:13:36,039 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:13:38,153 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:13:40,177 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:13:44,572 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.63s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:13:46,748 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.25s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:13:53,144 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:13:53,144 INFO L93 Difference]: Finished difference Result 59639 states and 85577 transitions. [2021-11-25 19:13:53,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 19:13:53,145 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 51.666666666666664) internal successors, (155), 3 states have internal predecessors, (155), 3 states have call successors, (122), 2 states have call predecessors, (122), 1 states have return successors, (118), 3 states have call predecessors, (118), 3 states have call successors, (118) Word has length 1160 [2021-11-25 19:13:53,146 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:13:53,426 INFO L225 Difference]: With dead ends: 59639 [2021-11-25 19:13:53,431 INFO L226 Difference]: Without dead ends: 37136 [2021-11-25 19:13:53,517 INFO L932 BasicCegarLoop]: 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 [2021-11-25 19:13:53,518 INFO L933 BasicCegarLoop]: 5175 mSDtfsCounter, 3505 mSDsluCounter, 3895 mSDsCounter, 0 mSdLazyCounter, 1358 mSolverCounterSat, 12 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 35.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3514 SdHoareTripleChecker+Valid, 8539 SdHoareTripleChecker+Invalid, 1376 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 1358 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 36.8s IncrementalHoareTripleChecker+Time [2021-11-25 19:13:53,518 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3514 Valid, 8539 Invalid, 1376 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 1358 Invalid, 6 Unknown, 0 Unchecked, 36.8s Time] [2021-11-25 19:13:53,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37136 states. [2021-11-25 19:13:55,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37136 to 37091. [2021-11-25 19:13:55,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37091 states, 23652 states have (on average 1.33684255031287) internal successors, (31619), 24003 states have internal predecessors, (31619), 10704 states have call successors, (10704), 2735 states have call predecessors, (10704), 2732 states have return successors, (10835), 10523 states have call predecessors, (10835), 10700 states have call successors, (10835) [2021-11-25 19:13:55,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37091 states to 37091 states and 53158 transitions. [2021-11-25 19:13:55,630 INFO L78 Accepts]: Start accepts. Automaton has 37091 states and 53158 transitions. Word has length 1160 [2021-11-25 19:13:55,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:13:55,632 INFO L470 AbstractCegarLoop]: Abstraction has 37091 states and 53158 transitions. [2021-11-25 19:13:55,632 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.666666666666664) internal successors, (155), 3 states have internal predecessors, (155), 3 states have call successors, (122), 2 states have call predecessors, (122), 1 states have return successors, (118), 3 states have call predecessors, (118), 3 states have call successors, (118) [2021-11-25 19:13:55,633 INFO L276 IsEmpty]: Start isEmpty. Operand 37091 states and 53158 transitions. [2021-11-25 19:13:55,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1183 [2021-11-25 19:13:55,911 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:13:55,912 INFO L514 BasicCegarLoop]: trace histogram [114, 110, 110, 110, 110, 110, 110, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 19:13:55,912 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-25 19:13:55,912 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-25 19:13:55,913 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:13:55,913 INFO L85 PathProgramCache]: Analyzing trace with hash -630310506, now seen corresponding path program 1 times [2021-11-25 19:13:55,913 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:13:55,913 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2093666710] [2021-11-25 19:13:55,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:13:55,914 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:13:56,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:13:58,252 INFO L134 CoverageAnalysis]: Checked inductivity of 48887 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 48887 trivial. 0 not checked. [2021-11-25 19:13:58,252 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:13:58,252 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2093666710] [2021-11-25 19:13:58,252 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2093666710] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:13:58,252 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:13:58,253 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-25 19:13:58,253 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1134521542] [2021-11-25 19:13:58,253 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:13:58,255 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-25 19:13:58,255 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:13:58,255 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-25 19:13:58,256 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-25 19:13:58,256 INFO L87 Difference]: Start difference. First operand 37091 states and 53158 transitions. Second operand has 5 states, 5 states have (on average 31.6) internal successors, (158), 4 states have internal predecessors, (158), 2 states have call successors, (123), 3 states have call predecessors, (123), 1 states have return successors, (121), 2 states have call predecessors, (121), 2 states have call successors, (121) [2021-11-25 19:14:01,953 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.16s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:14:03,211 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.26s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:14:04,264 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:14:09,696 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.22s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:14:11,884 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.33s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:14:14,066 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:14:15,570 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.50s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:14:17,092 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.52s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:14:19,128 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:14:21,175 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:14:28,100 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:14:30,213 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.16s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:14:36,832 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:14:38,940 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:14:44,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:14:44,747 INFO L93 Difference]: Finished difference Result 37109 states and 53175 transitions. [2021-11-25 19:14:44,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-25 19:14:44,748 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 31.6) internal successors, (158), 4 states have internal predecessors, (158), 2 states have call successors, (123), 3 states have call predecessors, (123), 1 states have return successors, (121), 2 states have call predecessors, (121), 2 states have call successors, (121) Word has length 1182 [2021-11-25 19:14:44,750 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:14:44,933 INFO L225 Difference]: With dead ends: 37109 [2021-11-25 19:14:44,934 INFO L226 Difference]: Without dead ends: 37107 [2021-11-25 19:14:44,952 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-25 19:14:44,953 INFO L933 BasicCegarLoop]: 3394 mSDtfsCounter, 3660 mSDsluCounter, 7920 mSDsCounter, 0 mSdLazyCounter, 1671 mSolverCounterSat, 1 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 43.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3674 SdHoareTripleChecker+Valid, 10206 SdHoareTripleChecker+Invalid, 1677 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1671 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 45.1s IncrementalHoareTripleChecker+Time [2021-11-25 19:14:44,953 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3674 Valid, 10206 Invalid, 1677 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 1671 Invalid, 5 Unknown, 0 Unchecked, 45.1s Time] [2021-11-25 19:14:44,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37107 states. [2021-11-25 19:14:46,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37107 to 37107. [2021-11-25 19:14:46,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37107 states, 23662 states have (on average 1.3367424562589807) internal successors, (31630), 24013 states have internal predecessors, (31630), 10706 states have call successors, (10706), 2739 states have call predecessors, (10706), 2736 states have return successors, (10837), 10525 states have call predecessors, (10837), 10702 states have call successors, (10837) [2021-11-25 19:14:46,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37107 states to 37107 states and 53173 transitions. [2021-11-25 19:14:46,846 INFO L78 Accepts]: Start accepts. Automaton has 37107 states and 53173 transitions. Word has length 1182 [2021-11-25 19:14:46,848 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:14:46,848 INFO L470 AbstractCegarLoop]: Abstraction has 37107 states and 53173 transitions. [2021-11-25 19:14:46,848 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 31.6) internal successors, (158), 4 states have internal predecessors, (158), 2 states have call successors, (123), 3 states have call predecessors, (123), 1 states have return successors, (121), 2 states have call predecessors, (121), 2 states have call successors, (121) [2021-11-25 19:14:46,848 INFO L276 IsEmpty]: Start isEmpty. Operand 37107 states and 53173 transitions. [2021-11-25 19:14:46,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1188 [2021-11-25 19:14:46,879 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:14:46,881 INFO L514 BasicCegarLoop]: trace histogram [114, 110, 110, 110, 110, 110, 110, 5, 5, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 19:14:46,881 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-25 19:14:46,881 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-25 19:14:46,882 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:14:46,882 INFO L85 PathProgramCache]: Analyzing trace with hash -1957005350, now seen corresponding path program 1 times [2021-11-25 19:14:46,882 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:14:46,883 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1167751208] [2021-11-25 19:14:46,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:14:46,883 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:14:47,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:14:48,688 INFO L134 CoverageAnalysis]: Checked inductivity of 48889 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 48887 trivial. 0 not checked. [2021-11-25 19:14:48,689 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:14:48,689 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1167751208] [2021-11-25 19:14:48,689 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1167751208] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:14:48,690 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:14:48,690 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-25 19:14:48,690 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [106529972] [2021-11-25 19:14:48,691 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:14:48,693 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-25 19:14:48,693 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:14:48,693 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-25 19:14:48,694 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-25 19:14:48,694 INFO L87 Difference]: Start difference. First operand 37107 states and 53173 transitions. Second operand has 5 states, 5 states have (on average 32.2) internal successors, (161), 4 states have internal predecessors, (161), 2 states have call successors, (124), 3 states have call predecessors, (124), 1 states have return successors, (122), 2 states have call predecessors, (122), 2 states have call successors, (122) [2021-11-25 19:14:52,280 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.35s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:14:53,417 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:14:54,997 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.58s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:15:01,326 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.29s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:15:03,678 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:15:05,720 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:15:07,771 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:15:09,823 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:15:14,846 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-25 19:15:19,017 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:15:20,991 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:15:23,954 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:15:25,616 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:15:27,031 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.41s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:15:28,474 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.44s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:15:30,522 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:15:32,647 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:15:37,795 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:15:37,795 INFO L93 Difference]: Finished difference Result 37164 states and 53271 transitions. [2021-11-25 19:15:37,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-25 19:15:37,796 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 32.2) internal successors, (161), 4 states have internal predecessors, (161), 2 states have call successors, (124), 3 states have call predecessors, (124), 1 states have return successors, (122), 2 states have call predecessors, (122), 2 states have call successors, (122) Word has length 1187 [2021-11-25 19:15:37,798 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:15:37,978 INFO L225 Difference]: With dead ends: 37164 [2021-11-25 19:15:37,978 INFO L226 Difference]: Without dead ends: 37162 [2021-11-25 19:15:37,998 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-25 19:15:38,001 INFO L933 BasicCegarLoop]: 3397 mSDtfsCounter, 3650 mSDsluCounter, 7922 mSDsCounter, 0 mSdLazyCounter, 1667 mSolverCounterSat, 1 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 46.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3667 SdHoareTripleChecker+Valid, 10213 SdHoareTripleChecker+Invalid, 1675 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1667 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 47.9s IncrementalHoareTripleChecker+Time [2021-11-25 19:15:38,002 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3667 Valid, 10213 Invalid, 1675 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1667 Invalid, 7 Unknown, 0 Unchecked, 47.9s Time] [2021-11-25 19:15:38,043 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37162 states. [2021-11-25 19:15:39,742 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37162 to 37111. [2021-11-25 19:15:39,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37111 states, 23665 states have (on average 1.336699767589267) internal successors, (31633), 24016 states have internal predecessors, (31633), 10706 states have call successors, (10706), 2740 states have call predecessors, (10706), 2737 states have return successors, (10837), 10525 states have call predecessors, (10837), 10702 states have call successors, (10837) [2021-11-25 19:15:39,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37111 states to 37111 states and 53176 transitions. [2021-11-25 19:15:39,890 INFO L78 Accepts]: Start accepts. Automaton has 37111 states and 53176 transitions. Word has length 1187 [2021-11-25 19:15:39,891 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:15:39,891 INFO L470 AbstractCegarLoop]: Abstraction has 37111 states and 53176 transitions. [2021-11-25 19:15:39,891 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 32.2) internal successors, (161), 4 states have internal predecessors, (161), 2 states have call successors, (124), 3 states have call predecessors, (124), 1 states have return successors, (122), 2 states have call predecessors, (122), 2 states have call successors, (122) [2021-11-25 19:15:39,892 INFO L276 IsEmpty]: Start isEmpty. Operand 37111 states and 53176 transitions. [2021-11-25 19:15:39,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1193 [2021-11-25 19:15:39,921 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:15:39,922 INFO L514 BasicCegarLoop]: trace histogram [114, 110, 110, 110, 110, 110, 110, 5, 5, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 19:15:39,922 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-25 19:15:39,922 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-25 19:15:39,923 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:15:39,923 INFO L85 PathProgramCache]: Analyzing trace with hash -829711402, now seen corresponding path program 1 times [2021-11-25 19:15:39,923 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:15:39,924 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [103200985] [2021-11-25 19:15:39,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:15:39,924 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:15:40,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:15:41,883 INFO L134 CoverageAnalysis]: Checked inductivity of 48895 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 48891 trivial. 0 not checked. [2021-11-25 19:15:41,883 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:15:41,883 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [103200985] [2021-11-25 19:15:41,883 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [103200985] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:15:41,883 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:15:41,884 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-25 19:15:41,884 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [441214854] [2021-11-25 19:15:41,885 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:15:41,886 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-25 19:15:41,887 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:15:41,887 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-25 19:15:41,887 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-25 19:15:41,888 INFO L87 Difference]: Start difference. First operand 37111 states and 53176 transitions. Second operand has 5 states, 5 states have (on average 32.2) internal successors, (161), 4 states have internal predecessors, (161), 2 states have call successors, (125), 3 states have call predecessors, (125), 1 states have return successors, (123), 2 states have call predecessors, (123), 2 states have call successors, (123) [2021-11-25 19:15:45,685 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.47s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:15:47,715 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:15:53,297 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:15:55,630 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.38s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:15:57,693 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.94s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:15:58,817 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:16:00,854 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:16:02,906 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:16:04,533 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.63s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:16:06,571 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:16:08,604 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:16:11,161 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.70s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:16:13,868 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-25 19:16:16,053 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.18s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-25 19:16:17,581 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:16:21,000 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.24s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:16:22,009 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:16:23,397 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.39s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:16:25,262 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:16:30,259 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:16:32,406 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:16:38,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:16:38,527 INFO L93 Difference]: Finished difference Result 37665 states and 53798 transitions. [2021-11-25 19:16:38,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-25 19:16:38,528 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 32.2) internal successors, (161), 4 states have internal predecessors, (161), 2 states have call successors, (125), 3 states have call predecessors, (125), 1 states have return successors, (123), 2 states have call predecessors, (123), 2 states have call successors, (123) Word has length 1192 [2021-11-25 19:16:38,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:16:38,678 INFO L225 Difference]: With dead ends: 37665 [2021-11-25 19:16:38,678 INFO L226 Difference]: Without dead ends: 37663 [2021-11-25 19:16:38,696 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-25 19:16:38,697 INFO L933 BasicCegarLoop]: 3404 mSDtfsCounter, 3605 mSDsluCounter, 8029 mSDsCounter, 0 mSdLazyCounter, 1678 mSolverCounterSat, 2 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 53.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3616 SdHoareTripleChecker+Valid, 10316 SdHoareTripleChecker+Invalid, 1688 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1678 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 55.1s IncrementalHoareTripleChecker+Time [2021-11-25 19:16:38,697 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3616 Valid, 10316 Invalid, 1688 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1678 Invalid, 8 Unknown, 0 Unchecked, 55.1s Time] [2021-11-25 19:16:38,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37663 states. [2021-11-25 19:16:40,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37663 to 37661. [2021-11-25 19:16:40,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37661 states, 24018 states have (on average 1.3346656674161046) internal successors, (32056), 24369 states have internal predecessors, (32056), 10804 states have call successors, (10804), 2839 states have call predecessors, (10804), 2836 states have return successors, (10935), 10623 states have call predecessors, (10935), 10800 states have call successors, (10935) [2021-11-25 19:16:40,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37661 states to 37661 states and 53795 transitions. [2021-11-25 19:16:40,690 INFO L78 Accepts]: Start accepts. Automaton has 37661 states and 53795 transitions. Word has length 1192 [2021-11-25 19:16:40,692 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:16:40,692 INFO L470 AbstractCegarLoop]: Abstraction has 37661 states and 53795 transitions. [2021-11-25 19:16:40,693 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 32.2) internal successors, (161), 4 states have internal predecessors, (161), 2 states have call successors, (125), 3 states have call predecessors, (125), 1 states have return successors, (123), 2 states have call predecessors, (123), 2 states have call successors, (123) [2021-11-25 19:16:40,693 INFO L276 IsEmpty]: Start isEmpty. Operand 37661 states and 53795 transitions. [2021-11-25 19:16:40,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1197 [2021-11-25 19:16:40,726 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:16:40,727 INFO L514 BasicCegarLoop]: trace histogram [114, 110, 110, 110, 110, 110, 110, 5, 5, 4, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 19:16:40,727 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-11-25 19:16:40,727 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-25 19:16:40,728 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:16:40,728 INFO L85 PathProgramCache]: Analyzing trace with hash -1499418829, now seen corresponding path program 1 times [2021-11-25 19:16:40,729 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:16:40,729 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [346323126] [2021-11-25 19:16:40,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:16:40,729 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:16:41,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:16:42,528 INFO L134 CoverageAnalysis]: Checked inductivity of 48904 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 48898 trivial. 0 not checked. [2021-11-25 19:16:42,528 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:16:42,528 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [346323126] [2021-11-25 19:16:42,528 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [346323126] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:16:42,528 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:16:42,529 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-25 19:16:42,529 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1226808399] [2021-11-25 19:16:42,529 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:16:42,531 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-25 19:16:42,531 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:16:42,532 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-25 19:16:42,532 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-25 19:16:42,532 INFO L87 Difference]: Start difference. First operand 37661 states and 53795 transitions. Second operand has 5 states, 5 states have (on average 32.2) internal successors, (161), 4 states have internal predecessors, (161), 2 states have call successors, (126), 3 states have call predecessors, (126), 1 states have return successors, (124), 2 states have call predecessors, (124), 2 states have call successors, (124) [2021-11-25 19:16:46,008 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.68s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:16:47,053 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:16:55,054 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2021-11-25 19:16:56,657 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:16:58,105 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.45s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:17:01,105 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:17:03,164 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:17:05,215 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:17:09,776 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-25 19:17:14,268 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.22s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:17:16,286 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:17:17,839 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.24s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:17:19,448 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.61s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:17:25,110 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:17:27,234 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:17:32,781 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2021-11-25 19:17:35,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:17:35,309 INFO L93 Difference]: Finished difference Result 37767 states and 53857 transitions. [2021-11-25 19:17:35,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-25 19:17:35,310 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 32.2) internal successors, (161), 4 states have internal predecessors, (161), 2 states have call successors, (126), 3 states have call predecessors, (126), 1 states have return successors, (124), 2 states have call predecessors, (124), 2 states have call successors, (124) Word has length 1196 [2021-11-25 19:17:35,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:17:35,438 INFO L225 Difference]: With dead ends: 37767 [2021-11-25 19:17:35,438 INFO L226 Difference]: Without dead ends: 37765 [2021-11-25 19:17:35,450 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-25 19:17:35,451 INFO L933 BasicCegarLoop]: 3402 mSDtfsCounter, 3620 mSDsluCounter, 7965 mSDsCounter, 0 mSdLazyCounter, 1673 mSolverCounterSat, 2 mSolverCounterUnsat, 9 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 49.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3636 SdHoareTripleChecker+Valid, 10256 SdHoareTripleChecker+Invalid, 1684 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1673 IncrementalHoareTripleChecker+Invalid, 9 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 51.3s IncrementalHoareTripleChecker+Time [2021-11-25 19:17:35,451 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3636 Valid, 10256 Invalid, 1684 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1673 Invalid, 9 Unknown, 0 Unchecked, 51.3s Time] [2021-11-25 19:17:35,490 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37765 states. [2021-11-25 19:17:37,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37765 to 37763. [2021-11-25 19:17:37,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37763 states, 24077 states have (on average 1.333845578768119) internal successors, (32115), 24428 states have internal predecessors, (32115), 10804 states have call successors, (10804), 2882 states have call predecessors, (10804), 2879 states have return successors, (10935), 10623 states have call predecessors, (10935), 10800 states have call successors, (10935) [2021-11-25 19:17:37,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37763 states to 37763 states and 53854 transitions. [2021-11-25 19:17:37,335 INFO L78 Accepts]: Start accepts. Automaton has 37763 states and 53854 transitions. Word has length 1196 [2021-11-25 19:17:37,336 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:17:37,336 INFO L470 AbstractCegarLoop]: Abstraction has 37763 states and 53854 transitions. [2021-11-25 19:17:37,336 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 32.2) internal successors, (161), 4 states have internal predecessors, (161), 2 states have call successors, (126), 3 states have call predecessors, (126), 1 states have return successors, (124), 2 states have call predecessors, (124), 2 states have call successors, (124) [2021-11-25 19:17:37,336 INFO L276 IsEmpty]: Start isEmpty. Operand 37763 states and 53854 transitions. [2021-11-25 19:17:37,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1202 [2021-11-25 19:17:37,596 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:17:37,597 INFO L514 BasicCegarLoop]: trace histogram [114, 110, 110, 110, 110, 110, 110, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 19:17:37,598 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-11-25 19:17:37,598 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-25 19:17:37,598 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:17:37,599 INFO L85 PathProgramCache]: Analyzing trace with hash 1101611933, now seen corresponding path program 1 times [2021-11-25 19:17:37,599 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:17:37,599 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1917313146] [2021-11-25 19:17:37,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:17:37,600 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:17:37,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:17:39,329 INFO L134 CoverageAnalysis]: Checked inductivity of 48918 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 48910 trivial. 0 not checked. [2021-11-25 19:17:39,329 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:17:39,330 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1917313146] [2021-11-25 19:17:39,330 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1917313146] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:17:39,330 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:17:39,331 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-25 19:17:39,331 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [914529792] [2021-11-25 19:17:39,331 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:17:39,333 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-25 19:17:39,333 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:17:39,333 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-25 19:17:39,333 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-25 19:17:39,334 INFO L87 Difference]: Start difference. First operand 37763 states and 53854 transitions. Second operand has 5 states, 5 states have (on average 32.2) internal successors, (161), 4 states have internal predecessors, (161), 2 states have call successors, (127), 3 states have call predecessors, (127), 1 states have return successors, (125), 2 states have call predecessors, (125), 2 states have call successors, (125) [2021-11-25 19:17:43,623 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:17:44,704 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:17:51,097 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.43s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:17:52,704 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.61s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:17:54,746 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:17:56,802 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:17:58,848 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:18:00,093 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.16s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:18:02,802 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:18:04,203 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.40s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:18:05,376 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.17s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:18:06,775 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.40s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:18:07,911 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:18:09,255 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.34s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:18:11,502 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.28s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:18:13,480 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:18:17,682 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:18:19,803 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:18:25,183 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2021-11-25 19:18:27,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:18:27,579 INFO L93 Difference]: Finished difference Result 37769 states and 53859 transitions. [2021-11-25 19:18:27,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-25 19:18:27,580 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 32.2) internal successors, (161), 4 states have internal predecessors, (161), 2 states have call successors, (127), 3 states have call predecessors, (127), 1 states have return successors, (125), 2 states have call predecessors, (125), 2 states have call successors, (125) Word has length 1201 [2021-11-25 19:18:27,582 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:18:27,703 INFO L225 Difference]: With dead ends: 37769 [2021-11-25 19:18:27,703 INFO L226 Difference]: Without dead ends: 37767 [2021-11-25 19:18:27,718 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-25 19:18:27,718 INFO L933 BasicCegarLoop]: 3397 mSDtfsCounter, 3648 mSDsluCounter, 7920 mSDsCounter, 0 mSdLazyCounter, 1666 mSolverCounterSat, 1 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 45.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3661 SdHoareTripleChecker+Valid, 10213 SdHoareTripleChecker+Invalid, 1673 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1666 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 46.6s IncrementalHoareTripleChecker+Time [2021-11-25 19:18:27,719 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3661 Valid, 10213 Invalid, 1673 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1666 Invalid, 6 Unknown, 0 Unchecked, 46.6s Time] [2021-11-25 19:18:27,751 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37767 states. [2021-11-25 19:18:29,742 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37767 to 37767. [2021-11-25 19:18:29,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37767 states, 24080 states have (on average 1.3338039867109635) internal successors, (32118), 24431 states have internal predecessors, (32118), 10804 states have call successors, (10804), 2883 states have call predecessors, (10804), 2880 states have return successors, (10935), 10623 states have call predecessors, (10935), 10800 states have call successors, (10935) [2021-11-25 19:18:29,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37767 states to 37767 states and 53857 transitions. [2021-11-25 19:18:29,896 INFO L78 Accepts]: Start accepts. Automaton has 37767 states and 53857 transitions. Word has length 1201 [2021-11-25 19:18:29,897 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:18:29,897 INFO L470 AbstractCegarLoop]: Abstraction has 37767 states and 53857 transitions. [2021-11-25 19:18:29,897 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 32.2) internal successors, (161), 4 states have internal predecessors, (161), 2 states have call successors, (127), 3 states have call predecessors, (127), 1 states have return successors, (125), 2 states have call predecessors, (125), 2 states have call successors, (125) [2021-11-25 19:18:29,897 INFO L276 IsEmpty]: Start isEmpty. Operand 37767 states and 53857 transitions. [2021-11-25 19:18:29,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1207 [2021-11-25 19:18:29,921 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:18:29,922 INFO L514 BasicCegarLoop]: trace histogram [114, 110, 110, 110, 110, 110, 110, 6, 5, 5, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 19:18:29,922 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-11-25 19:18:29,922 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-25 19:18:29,923 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:18:29,923 INFO L85 PathProgramCache]: Analyzing trace with hash -1914963661, now seen corresponding path program 1 times [2021-11-25 19:18:29,924 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:18:29,924 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [124263892] [2021-11-25 19:18:29,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:18:29,924 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:18:30,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:18:31,823 INFO L134 CoverageAnalysis]: Checked inductivity of 48936 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 48926 trivial. 0 not checked. [2021-11-25 19:18:31,823 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:18:31,824 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [124263892] [2021-11-25 19:18:31,824 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [124263892] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:18:31,824 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:18:31,825 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-25 19:18:31,825 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [389369321] [2021-11-25 19:18:31,826 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:18:31,827 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-25 19:18:31,828 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:18:31,828 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-25 19:18:31,829 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-25 19:18:31,829 INFO L87 Difference]: Start difference. First operand 37767 states and 53857 transitions. Second operand has 5 states, 5 states have (on average 32.2) internal successors, (161), 4 states have internal predecessors, (161), 2 states have call successors, (128), 3 states have call predecessors, (128), 1 states have return successors, (126), 2 states have call predecessors, (126), 2 states have call successors, (126) [2021-11-25 19:18:36,330 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.25s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:18:42,543 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:18:43,901 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.36s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:18:45,067 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.17s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:18:47,247 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:18:49,304 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:18:51,358 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:18:56,719 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:18:59,240 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:19:00,457 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.22s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:19:03,349 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:19:04,889 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.54s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:19:07,632 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:19:09,759 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:19:15,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:19:15,585 INFO L93 Difference]: Finished difference Result 37773 states and 53862 transitions. [2021-11-25 19:19:15,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-25 19:19:15,586 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 32.2) internal successors, (161), 4 states have internal predecessors, (161), 2 states have call successors, (128), 3 states have call predecessors, (128), 1 states have return successors, (126), 2 states have call predecessors, (126), 2 states have call successors, (126) Word has length 1206 [2021-11-25 19:19:15,588 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:19:15,705 INFO L225 Difference]: With dead ends: 37773 [2021-11-25 19:19:15,705 INFO L226 Difference]: Without dead ends: 37771 [2021-11-25 19:19:15,720 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-25 19:19:15,721 INFO L933 BasicCegarLoop]: 3397 mSDtfsCounter, 3651 mSDsluCounter, 7922 mSDsCounter, 0 mSdLazyCounter, 1669 mSolverCounterSat, 1 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 40.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3661 SdHoareTripleChecker+Valid, 10213 SdHoareTripleChecker+Invalid, 1675 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1669 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 42.2s IncrementalHoareTripleChecker+Time [2021-11-25 19:19:15,722 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3661 Valid, 10213 Invalid, 1675 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1669 Invalid, 5 Unknown, 0 Unchecked, 42.2s Time] [2021-11-25 19:19:15,850 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37771 states. [2021-11-25 19:19:17,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37771 to 37771. [2021-11-25 19:19:17,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37771 states, 24083 states have (on average 1.3337624050159864) internal successors, (32121), 24434 states have internal predecessors, (32121), 10804 states have call successors, (10804), 2884 states have call predecessors, (10804), 2881 states have return successors, (10935), 10623 states have call predecessors, (10935), 10800 states have call successors, (10935) [2021-11-25 19:19:17,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37771 states to 37771 states and 53860 transitions. [2021-11-25 19:19:17,832 INFO L78 Accepts]: Start accepts. Automaton has 37771 states and 53860 transitions. Word has length 1206 [2021-11-25 19:19:17,833 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:19:17,833 INFO L470 AbstractCegarLoop]: Abstraction has 37771 states and 53860 transitions. [2021-11-25 19:19:17,833 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 32.2) internal successors, (161), 4 states have internal predecessors, (161), 2 states have call successors, (128), 3 states have call predecessors, (128), 1 states have return successors, (126), 2 states have call predecessors, (126), 2 states have call successors, (126) [2021-11-25 19:19:17,833 INFO L276 IsEmpty]: Start isEmpty. Operand 37771 states and 53860 transitions. [2021-11-25 19:19:17,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1224 [2021-11-25 19:19:17,858 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:19:17,859 INFO L514 BasicCegarLoop]: trace histogram [114, 110, 110, 110, 110, 110, 110, 7, 6, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 19:19:17,859 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-11-25 19:19:17,859 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-25 19:19:17,860 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:19:17,860 INFO L85 PathProgramCache]: Analyzing trace with hash -1319398556, now seen corresponding path program 1 times [2021-11-25 19:19:17,860 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:19:17,861 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1871817451] [2021-11-25 19:19:17,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:19:17,861 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:19:18,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:19:19,735 INFO L134 CoverageAnalysis]: Checked inductivity of 48966 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 48954 trivial. 0 not checked. [2021-11-25 19:19:19,736 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:19:19,736 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1871817451] [2021-11-25 19:19:19,736 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1871817451] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:19:19,737 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:19:19,737 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-25 19:19:19,738 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1675442020] [2021-11-25 19:19:19,738 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:19:19,740 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-25 19:19:19,740 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:19:19,741 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-25 19:19:19,741 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-25 19:19:19,741 INFO L87 Difference]: Start difference. First operand 37771 states and 53860 transitions. Second operand has 5 states, 5 states have (on average 31.8) internal successors, (159), 4 states have internal predecessors, (159), 2 states have call successors, (127), 3 states have call predecessors, (127), 1 states have return successors, (125), 2 states have call predecessors, (125), 2 states have call successors, (125) [2021-11-25 19:19:23,147 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.23s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:19:24,433 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.29s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:19:25,649 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.22s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:19:32,799 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.50s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:19:36,755 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:19:38,810 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:19:40,597 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.79s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:19:42,641 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:19:44,675 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:19:49,579 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-25 19:19:51,074 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:19:52,264 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.19s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:19:53,560 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.30s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:19:57,183 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:19:59,484 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.53s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:20:04,338 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:20:06,448 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:20:11,913 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2021-11-25 19:20:14,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:20:14,415 INFO L93 Difference]: Finished difference Result 37777 states and 53865 transitions. [2021-11-25 19:20:14,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-25 19:20:14,416 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 31.8) internal successors, (159), 4 states have internal predecessors, (159), 2 states have call successors, (127), 3 states have call predecessors, (127), 1 states have return successors, (125), 2 states have call predecessors, (125), 2 states have call successors, (125) Word has length 1223 [2021-11-25 19:20:14,417 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:20:14,537 INFO L225 Difference]: With dead ends: 37777 [2021-11-25 19:20:14,537 INFO L226 Difference]: Without dead ends: 37775 [2021-11-25 19:20:14,550 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-25 19:20:14,551 INFO L933 BasicCegarLoop]: 3397 mSDtfsCounter, 3656 mSDsluCounter, 7920 mSDsCounter, 0 mSdLazyCounter, 1668 mSolverCounterSat, 1 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 51.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3664 SdHoareTripleChecker+Valid, 10209 SdHoareTripleChecker+Invalid, 1677 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1668 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 53.0s IncrementalHoareTripleChecker+Time [2021-11-25 19:20:14,551 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3664 Valid, 10209 Invalid, 1677 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 1668 Invalid, 8 Unknown, 0 Unchecked, 53.0s Time] [2021-11-25 19:20:14,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37775 states. [2021-11-25 19:20:16,316 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37775 to 37775. [2021-11-25 19:20:16,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37775 states, 24086 states have (on average 1.3337208336793158) internal successors, (32124), 24437 states have internal predecessors, (32124), 10804 states have call successors, (10804), 2885 states have call predecessors, (10804), 2882 states have return successors, (10935), 10623 states have call predecessors, (10935), 10800 states have call successors, (10935) [2021-11-25 19:20:16,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37775 states to 37775 states and 53863 transitions. [2021-11-25 19:20:16,455 INFO L78 Accepts]: Start accepts. Automaton has 37775 states and 53863 transitions. Word has length 1223 [2021-11-25 19:20:16,456 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:20:16,456 INFO L470 AbstractCegarLoop]: Abstraction has 37775 states and 53863 transitions. [2021-11-25 19:20:16,457 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 31.8) internal successors, (159), 4 states have internal predecessors, (159), 2 states have call successors, (127), 3 states have call predecessors, (127), 1 states have return successors, (125), 2 states have call predecessors, (125), 2 states have call successors, (125) [2021-11-25 19:20:16,457 INFO L276 IsEmpty]: Start isEmpty. Operand 37775 states and 53863 transitions. [2021-11-25 19:20:16,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1218 [2021-11-25 19:20:16,477 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:20:16,478 INFO L514 BasicCegarLoop]: trace histogram [114, 110, 110, 110, 110, 110, 110, 8, 7, 7, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 19:20:16,478 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-11-25 19:20:16,478 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-25 19:20:16,478 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:20:16,478 INFO L85 PathProgramCache]: Analyzing trace with hash -894208102, now seen corresponding path program 1 times [2021-11-25 19:20:16,478 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:20:16,479 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1102828117] [2021-11-25 19:20:16,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:20:16,479 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:20:16,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:20:17,802 INFO L134 CoverageAnalysis]: Checked inductivity of 48985 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 48971 trivial. 0 not checked. [2021-11-25 19:20:17,802 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:20:17,802 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1102828117] [2021-11-25 19:20:17,802 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1102828117] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:20:17,802 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:20:17,803 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-25 19:20:17,803 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [620325392] [2021-11-25 19:20:17,803 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:20:17,804 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-25 19:20:17,805 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:20:17,805 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-25 19:20:17,805 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-25 19:20:17,806 INFO L87 Difference]: Start difference. First operand 37775 states and 53863 transitions. Second operand has 5 states, 5 states have (on average 32.2) internal successors, (161), 4 states have internal predecessors, (161), 2 states have call successors, (130), 3 states have call predecessors, (130), 1 states have return successors, (128), 2 states have call predecessors, (128), 2 states have call successors, (128) [2021-11-25 19:20:21,585 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:20:27,783 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.51s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:20:30,522 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.00s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:20:32,554 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:20:34,075 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.52s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:20:36,123 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:20:38,190 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:20:39,373 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:20:43,056 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-25 19:20:46,880 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:20:49,135 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.39s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:20:50,303 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.17s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:20:51,541 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.24s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []